vextab
Version:
A VexTab Parser for VexFlow
48,285 lines • 1.64 MB
JavaScript
/**
* VexTab 2.0.13 built on 2016-07-10.
* Copyright (c) 2010 Mohit Muthanna Cheppudira <mohit@muthanna.com>
*
* http://www.vexflow.com http://github.com/0xfe/vextab
*/
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.VexTabDiv = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
(function (process){
/* parser generated by jison 0.4.17 */
/*
Returns a Parser object of the following structure:
Parser: {
yy: {}
}
Parser.prototype: {
yy: {},
trace: function(),
symbols_: {associative list: name ==> number},
terminals_: {associative list: number ==> name},
productions_: [...],
performAction: function anonymous(yytext, yyleng, yylineno, yy, yystate, $$, _$),
table: [...],
defaultActions: {...},
parseError: function(str, hash),
parse: function(input),
lexer: {
EOF: 1,
parseError: function(str, hash),
setInput: function(input),
input: function(),
unput: function(str),
more: function(),
less: function(n),
pastInput: function(),
upcomingInput: function(),
showPosition: function(),
test_match: function(regex_match_array, rule_index),
next: function(),
lex: function(),
begin: function(condition),
popState: function(),
_currentRules: function(),
topState: function(),
pushState: function(condition),
options: {
ranges: boolean (optional: true ==> token location info will include a .range[] member)
flex: boolean (optional: true ==> flex-like lexing behaviour where the rules are tested exhaustively to find the longest match)
backtrack_lexer: boolean (optional: true ==> lexer regexes are tested in order and for each matching regex the action code is invoked; the lexer terminates the scan when a token is returned by the action code)
},
performAction: function(yy, yy_, $avoiding_name_collisions, YY_START),
rules: [...],
conditions: {associative list: name ==> set},
}
}
token location info (@$, _$, etc.): {
first_line: n,
last_line: n,
first_column: n,
last_column: n,
range: [start_number, end_number] (where the numbers are indexes into the input string, regular zero-based)
}
the parseError function receives a 'hash' object with these members for lexer and parser errors: {
text: (matched text)
token: (the produced terminal token, if any)
line: (yylineno)
}
while parser (grammar) errors will also provide these members, i.e. parser errors deliver a superset of attributes: {
loc: (yylloc)
expected: (string describing the set of expected tokens)
recoverable: (boolean: TRUE when the parser has a error recovery rule available for this particular error)
}
*/
var parser = (function(){
var o=function(k,v,o,l){for(o=o||{},l=k.length;l--;o[k[l]]=v);return o},$V0=[1,6],$V1=[1,7],$V2=[1,8],$V3=[1,9],$V4=[5,11,13,14,15],$V5=[5,11,13,14,15,17,19,21],$V6=[2,17],$V7=[1,14],$V8=[5,11,13,14,15,17,19,21,22],$V9=[1,18],$Va=[1,19],$Vb=[1,20],$Vc=[1,21],$Vd=[1,43],$Ve=[1,32],$Vf=[1,33],$Vg=[1,42],$Vh=[1,41],$Vi=[1,39],$Vj=[1,48],$Vk=[1,55],$Vl=[1,50],$Vm=[1,51],$Vn=[1,52],$Vo=[1,53],$Vp=[1,54],$Vq=[1,56],$Vr=[1,44],$Vs=[1,45],$Vt=[1,46],$Vu=[1,47],$Vv=[1,57],$Vw=[5,11,13,14,15,17,19,21,25],$Vx=[5,11,13,14,15,17,19,21,23,31,32,37,38,45,48,57,61,62,63,64,65,66,70,71,73,75,76],$Vy=[2,79],$Vz=[1,67],$VA=[1,64],$VB=[1,65],$VC=[1,66],$VD=[1,73],$VE=[1,74],$VF=[1,78],$VG=[1,79],$VH=[1,80],$VI=[1,81],$VJ=[41,57,59,61,62,63,64,65,66,67,68,69],$VK=[38,45,48,76],$VL=[41,48,57,59,61,62,63,64,65,66,67,68,69,81],$VM=[5,11,13,14,15,17,19,21,23,31,32,37,38,41,45,48,57,61,62,63,64,65,66,70,71,73,75,76],$VN=[1,101],$VO=[44,46],$VP=[2,63],$VQ=[1,106],$VR=[5,11,13,14,15,17,19,21,23,31,32,37,38,45,48,57,59,61,62,63,64,65,66,70,71,73,75,76],$VS=[5,11,13,14,15,17,19,21,23,31,32,37,38,45,48,57,59,60,61,62,63,64,65,66,70,71,73,75,76],$VT=[25,71],$VU=[41,48,57,59,61,62,63,64,65,66,67,68,69],$VV=[5,11,13,14,15,17,19,21,23,31,32,37,38,44,45,46,48,57,61,62,63,64,65,66,70,71,73,75,76];
var parser = {trace: function trace() { },
yy: {},
symbols_: {"error":2,"e":3,"maybe_vextab":4,"EOF":5,"vextab":6,"stave":7,"voice":8,"maybe_options":9,"stave_data":10,"OPTIONS":11,"options":12,"TABSTAVE":13,"STAVE":14,"VOICE":15,"stave_additions":16,"TEXT":17,"text":18,"NOTES":19,"notes":20,"SLUR":21,"WORD":22,"=":23,"STR":24,",":25,"lingo":26,"line":27,"chord":28,"time":29,"bar":30,"[":31,"]":32,"tuplets":33,"annotations":34,"command":35,"rest":36,"|":37,":":38,"frets":39,"maybe_decorator":40,"/":41,"string":42,"chord_line":43,".":44,"(":45,")":46,"articulation":47,"NUMBER":48,"abc":49,"_":50,"timed_fret":51,"time_values":52,"maybe_dot":53,"time_unit":54,"maybe_slash":55,"w":56,"h":57,"q":58,"d":59,"S":60,"-":61,"s":62,"t":63,"T":64,"b":65,"p":66,"v":67,"V":68,"u":69,"^":70,"$":71,"annotation_words":72,"!":73,"COMMAND":74,"#":75,"ABC":76,"abc_accidental":77,"accidental_type":78,"@":79,"n":80,"~":81,"$accept":0,"$end":1},
terminals_: {2:"error",5:"EOF",11:"OPTIONS",13:"TABSTAVE",14:"STAVE",15:"VOICE",17:"TEXT",19:"NOTES",21:"SLUR",22:"WORD",23:"=",24:"STR",25:",",31:"[",32:"]",37:"|",38:":",41:"/",44:".",45:"(",46:")",48:"NUMBER",50:"_",56:"w",57:"h",58:"q",59:"d",60:"S",61:"-",62:"s",63:"t",64:"T",65:"b",66:"p",67:"v",68:"V",69:"u",70:"^",71:"$",73:"!",74:"COMMAND",75:"#",76:"ABC",79:"@",80:"n",81:"~"},
productions_: [0,[3,2],[4,0],[4,1],[6,1],[6,2],[7,3],[7,2],[7,2],[8,1],[8,1],[8,1],[10,1],[10,2],[16,2],[16,2],[16,2],[9,0],[9,1],[12,3],[12,4],[18,1],[18,3],[20,1],[20,2],[26,1],[26,1],[26,1],[26,1],[26,1],[26,1],[26,1],[26,1],[26,1],[26,1],[30,1],[30,3],[30,3],[30,3],[30,3],[30,3],[27,4],[43,1],[43,3],[28,4],[28,5],[39,1],[39,1],[39,4],[39,2],[39,4],[51,5],[51,1],[51,5],[51,8],[51,1],[51,4],[29,3],[52,2],[54,1],[54,1],[54,1],[54,1],[53,0],[53,1],[55,0],[55,1],[42,1],[47,1],[47,1],[47,1],[47,1],[47,1],[47,1],[47,1],[40,1],[40,1],[40,1],[40,1],[40,0],[33,3],[33,5],[34,3],[72,1],[72,3],[35,3],[36,2],[36,3],[36,4],[49,3],[77,1],[77,2],[77,1],[77,2],[77,1],[77,0],[78,0],[78,1]],
performAction: function anonymous(yytext, yyleng, yylineno, yy, yystate /* action[1] */, $$ /* vstack */, _$ /* lstack */) {
/* this == yyval */
var $0 = $$.length - 1;
switch (yystate) {
case 1:
return $$[$0-1];
break;
case 2: case 17: case 79:
this.$ = null
break;
case 3: case 12: case 18: case 23: case 25: case 26: case 27: case 42: case 59: case 60: case 61: case 62: case 67:
this.$ = $$[$0]
break;
case 4: case 83:
this.$ = [$$[$0]]
break;
case 5:
this.$ = [].concat($$[$0-1], $$[$0])
break;
case 6:
this.$ = {
element: $$[$0-2],
options: $$[$0-1],
notes: $$[$0].notes,
text: $$[$0].text,
_l: _$[$0-2].first_line,
_c: _$[$0-2].first_column
}
break;
case 7:
this.$ = {
element: $$[$0-1],
options: $$[$0],
_l: _$[$0-1].first_line,
_c: _$[$0-1].first_column
}
break;
case 8:
this.$ = {
element: "options",
params: $$[$0],
_l: _$[$0-1].first_line,
_c: _$[$0-1].first_column
}
break;
case 13:
var text = [].concat($$[$0-1].text, $$[$0].text);
var notes = [].concat($$[$0-1].notes, $$[$0].notes);
var slurs = [].concat($$[$0-1].slurs, $$[$0].slurs)
this.$ = {text: text, notes: notes, slurs: slurs};
break;
case 14:
this.$ = {text: $$[$0], notes: [], slurs: []}
break;
case 15:
this.$ = {notes: $$[$0], text: [], slurs: []}
break;
case 16:
this.$ = {slurs: $$[$0], notes: [], text: []}
break;
case 19:
this.$ = [{
key: $$[$0-2],
value: $$[$0],
_l: _$[$0-2].first_line,
_c: _$[$0-2].first_column
}]
break;
case 20:
this.$ = [].concat($$[$0-3], [{
key: $$[$0-2],
value: $$[$0],
_l: _$[$0-2].first_line,
_c: _$[$0-2].first_column
}])
break;
case 21:
this.$ = [{text: $$[$0], _l: _$[$0].first_line, _c: _$[$0].first_column}]
break;
case 22:
this.$ = [].concat($$[$0-2], {text: $$[$0], _l: _$[$0].first_line, _c: _$[$0].first_column})
break;
case 24:
this.$ = [].concat($$[$0-1], $$[$0])
break;
case 28:
this.$ = [{
command: "bar",
type: $$[$0],
_l: _$[$0].first_line,
_c: _$[$0].first_column
}]
break;
case 29:
this.$ = [{
command: "open_beam",
_l: _$[$0].first_line,
_c: _$[$0].first_column
}]
break;
case 30:
this.$ = [{
command: "close_beam",
_l: _$[$0].first_line,
_c: _$[$0].first_column
}]
break;
case 31:
this.$ = [{
command: "tuplet",
params: $$[$0],
_l: _$[$0].first_line,
_c: _$[$0].first_column
}]
break;
case 32:
this.$ = [{
command: "annotations",
params: $$[$0],
_l: _$[$0].first_line,
_c: _$[$0].first_column
}]
break;
case 33:
this.$ = [{
command: "command",
params: $$[$0],
_l: _$[$0].first_line,
_c: _$[$0].first_column
}]
break;
case 34:
this.$ = [{
command: "rest",
params: $$[$0]
}]
break;
case 35:
this.$ = 'single'
break;
case 36:
this.$ = 'double'
break;
case 37:
this.$ = 'end'
break;
case 38:
this.$ = 'repeat-end'
break;
case 39:
this.$ = 'repeat-begin'
break;
case 40:
this.$ = 'repeat-both'
break;
case 41:
_.extend(_.last($$[$0-3]), {decorator: $$[$0-2]})
_.each($$[$0-3], function(fret) { fret['string'] = $$[$0] })
this.$ = $$[$0-3]
break;
case 43: case 84:
this.$ = [].concat($$[$0-2], $$[$0])
break;
case 44:
this.$ = [{chord: $$[$0-2], decorator: $$[$0]}]
break;
case 45:
this.$ = [{chord: $$[$0-2], articulation: $$[$0-4], decorator: $$[$0]}]
break;
case 46:
this.$ = [{
fret: $$[$0],
_l: _$[$0].first_line,
_c: _$[$0].first_column}]
break;
case 47:
this.$ = [{abc: $$[$0], _l: _$[$0].first_line, _c: _$[$0].first_column}]
break;
case 48:
this.$ = [{abc: $$[$0-3], octave: $$[$0-2],
fret: $$[$0], _l: _$[$0-3].first_line, _c: _$[$0-3].first_column}]
break;
case 49:
this.$ = [_.extend($$[$0], {articulation: $$[$0-1]})]
break;
case 50:
_.extend(_.last($$[$0-3]), {decorator: $$[$0-2]})
_.extend($$[$0], {articulation: $$[$0-1]})
$$[$0-3].push($$[$0])
this.$ = $$[$0-3]
break;
case 51:
this.$ = {
time: $$[$0-3], dot: $$[$0-2], fret: $$[$0],
_l: _$[$0-4].first_line, _c: _$[$0-4].first_column}
break;
case 52:
this.$ = {fret: $$[$0], _l: _$[$0].first_line, _c: _$[$0].first_column}
break;
case 53:
this.$ = {time: $$[$0-3], dot: $$[$0-2], abc: $$[$0]}
break;
case 54:
this.$ = {time: $$[$0-6], dot: $$[$0-5], abc: $$[$0-3], octave: $$[$0-2], fret: $$[$0]}
break;
case 55:
this.$ = {abc: $$[$0], _l: _$[$0].first_line, _c: _$[$0].first_column}
break;
case 56:
this.$ = {abc: $$[$0-3], octave: $$[$0-2],
fret: $$[$0], _l: _$[$0-3].first_line, _c: _$[$0-3].first_column}
break;
case 57:
this.$ = {time: $$[$0-1], dot: $$[$0]}
break;
case 58:
this.$ = $$[$0-1] + $$[$0]
break;
case 63:
this.$ = false
break;
case 64:
this.$ = true
break;
case 65:
this.$ = ''
break;
case 66: case 69:
this.$ = 's'
break;
case 68:
this.$ = '-'
break;
case 70:
this.$ = 't'
break;
case 71:
this.$ = 'T'
break;
case 72:
this.$ = 'b'
break;
case 73:
this.$ = 'h'
break;
case 74:
this.$ = 'p'
break;
case 75:
this.$ = 'v'
break;
case 76:
this.$ = 'V'
break;
case 77:
this.$ = 'u'
break;
case 78:
this.$ = 'd'
break;
case 80:
this.$ = {tuplet: $$[$0-1]}
break;
case 81:
this.$ = {tuplet: $$[$0-3], notes: $$[$0-1]}
break;
case 82: case 85:
this.$ = $$[$0-1]
break;
case 86:
this.$ = {position: 0}
break;
case 87:
this.$ = {position: $$[$0-1]}
break;
case 88:
this.$ = {position: $$[$0-1] * -1}
break;
case 89:
this.$ = {key: $$[$0-2], accidental: $$[$0-1], accidental_type: $$[$0]}
break;
case 90:
this.$ = "#"
break;
case 91:
this.$ = "##"
break;
case 92:
this.$ = "b"
break;
case 93:
this.$ = "bb"
break;
case 94:
this.$ = "n"
break;
case 96:
this.$ = null;
break;
case 97:
this.$ = "c"
break;
}
},
table: [{3:1,4:2,5:[2,2],6:3,7:4,8:5,11:$V0,13:$V1,14:$V2,15:$V3},{1:[3]},{5:[1,10]},{5:[2,3],7:11,8:5,11:$V0,13:$V1,14:$V2,15:$V3},o($V4,[2,4]),o($V5,$V6,{9:12,12:13,22:$V7}),{12:15,22:$V7},o($V8,[2,9]),o($V8,[2,10]),o($V8,[2,11]),{1:[2,1]},o($V4,[2,5]),o($V4,[2,7],{10:16,16:17,17:$V9,19:$Va,21:$Vb}),o($V5,[2,18],{22:$Vc}),{23:[1,22]},o($V4,[2,8],{22:$Vc}),o($V4,[2,6],{16:23,17:$V9,19:$Va,21:$Vb}),o($V5,[2,12]),{18:24,24:[1,25]},{20:26,23:$Vd,26:27,27:28,28:29,29:30,30:31,31:$Ve,32:$Vf,33:34,34:35,35:36,36:37,37:$Vg,38:$Vh,39:38,45:$Vi,47:40,48:$Vj,49:49,57:$Vk,61:$Vl,62:$Vm,63:$Vn,64:$Vo,65:$Vp,66:$Vq,70:$Vr,71:$Vs,73:$Vt,75:$Vu,76:$Vv},o($V5,$V6,{12:13,9:58,22:$V7}),{23:[1,59]},{22:[1,60]},o($V5,[2,13]),o($V5,[2,14],{25:[1,61]}),o($Vw,[2,21]),o($V5,[2,15],{27:28,28:29,29:30,30:31,33:34,34:35,35:36,36:37,39:38,47:40,49:49,26:62,23:$Vd,31:$Ve,32:$Vf,37:$Vg,38:$Vh,45:$Vi,48:$Vj,57:$Vk,61:$Vl,62:$Vm,63:$Vn,64:$Vo,65:$Vp,66:$Vq,70:$Vr,71:$Vs,73:$Vt,75:$Vu,76:$Vv}),o($Vx,[2,23]),o($Vx,[2,25]),o($Vx,[2,26]),o($Vx,[2,27]),o($Vx,[2,28]),o($Vx,[2,29]),o($Vx,[2,30]),o($Vx,[2,31]),o($Vx,[2,32]),o($Vx,[2,33]),o($Vx,[2,34]),o([41,57,61,62,63,64,65,66],$Vy,{40:63,59:$Vz,67:$VA,68:$VB,69:$VC}),{27:69,39:38,43:68,47:70,48:$Vj,49:49,57:$Vk,61:$Vl,62:$Vm,63:$Vn,64:$Vo,65:$Vp,66:$Vq,76:$Vv},{38:$VD,45:[1,71],48:$VE,49:75,51:72,76:$Vv},{48:$VF,52:76,54:77,56:$VG,57:$VH,58:$VI},o($Vx,[2,35]),{37:[1,82],38:[1,83]},{48:[1,84]},{22:[1,86],72:85},{74:[1,87]},{48:[1,89],61:[1,90],75:[1,88]},o($VJ,[2,46]),o($VJ,[2,47],{48:[1,91]}),o($VK,[2,68]),o($VK,[2,69]),o($VK,[2,70]),o($VK,[2,71]),o($VK,[2,72]),o($VK,[2,73]),o($VK,[2,74]),o($VL,[2,95],{77:92,75:[1,93],79:[1,94],80:[1,95]}),o($V5,[2,16]),{22:[1,96]},o($V8,[2,19]),{24:[1,97]},o($Vx,[2,24]),{41:[1,98],47:99,57:$Vk,61:$Vl,62:$Vm,63:$Vn,64:$Vo,65:$Vp,66:$Vq},o($VM,[2,75]),o($VM,[2,76]),o($VM,[2,77]),o($VM,[2,78]),{44:$VN,46:[1,100]},o($VO,[2,42]),{38:$VD,48:$VE,49:75,51:72,76:$Vv},{27:69,39:38,43:102,47:70,48:$Vj,49:49,57:$Vk,61:$Vl,62:$Vm,63:$Vn,64:$Vo,65:$Vp,66:$Vq,76:$Vv},o($VJ,[2,49]),{48:$VF,52:103,54:77,56:$VG,57:$VH,58:$VI},o($VJ,[2,52]),o($VJ,[2,55],{48:[1,104]}),o($Vx,$VP,{53:105,59:$VQ}),o($VR,[2,65],{55:107,60:[1,108]}),o($VS,[2,59]),o($VS,[2,60]),o($VS,[2,61]),o($VS,[2,62]),{23:[1,110],37:[1,109],38:[1,111]},{37:[1,112],38:[1,113]},{25:[1,115],70:[1,114]},{25:[1,117],71:[1,116]},o($VT,[2,83]),{73:[1,118]},o($Vx,[2,86]),{75:[1,119]},{48:[1,120]},{50:[1,121]},o($VU,[2,96],{78:122,81:[1,123]}),o($VL,[2,90],{75:[1,124]}),o($VL,[2,92],{79:[1,125]}),o($VL,[2,94]),o($V8,[2,20]),o($Vw,[2,22]),{42:126,48:[1,127]},{38:$VD,48:$VE,49:75,51:128,76:$Vv},o($Vx,$Vy,{40:129,59:$Vz,67:$VA,68:$VB,69:$VC}),{27:130,39:38,47:70,48:$Vj,49:49,57:$Vk,61:$Vl,62:$Vm,63:$Vn,64:$Vo,65:$Vp,66:$Vq,76:$Vv},{44:$VN,46:[1,131]},{38:$VP,53:132,59:$VQ},{50:[1,133]},o($Vx,[2,57]),o($Vx,[2,64]),o($VR,[2,58]),o($VR,[2,66]),o($Vx,[2,36]),o($Vx,[2,37]),o($Vx,[2,39]),o($Vx,[2,38]),o($Vx,[2,40]),o($Vx,[2,80]),{48:[1,134]},o($Vx,[2,82]),{22:[1,135]},o($Vx,[2,85]),o($Vx,[2,87]),{75:[1,136]},{48:[1,137]},o($VU,[2,89]),o($VU,[2,97]),o($VL,[2,91]),o($VL,[2,93]),o($VV,[2,41]),o($VV,[2,67]),o($VJ,[2,50]),o($Vx,[2,44]),o($VO,[2,43]),o($Vx,$Vy,{40:138,59:$Vz,67:$VA,68:$VB,69:$VC}),{38:[1,139]},{48:[1,140]},{70:[1,141]},o($VT,[2,84]),o($Vx,[2,88]),o($VJ,[2,48]),o($Vx,[2,45]),{48:[1,142],49:143,76:$Vv},o($VJ,[2,56]),o($Vx,[2,81]),o($VJ,[2,51]),o($VJ,[2,53],{48:[1,144]}),{50:[1,145]},{48:[1,146]},o($VJ,[2,54])],
defaultActions: {10:[2,1]},
parseError: function parseError(str, hash) {
if (hash.recoverable) {
this.trace(str);
} else {
function _parseError (msg, hash) {
this.message = msg;
this.hash = hash;
}
_parseError.prototype = Error;
throw new _parseError(str, hash);
}
},
parse: function parse(input) {
var self = this, stack = [0], tstack = [], vstack = [null], lstack = [], table = this.table, yytext = '', yylineno = 0, yyleng = 0, recovering = 0, TERROR = 2, EOF = 1;
var args = lstack.slice.call(arguments, 1);
var lexer = Object.create(this.lexer);
var sharedState = { yy: {} };
for (var k in this.yy) {
if (Object.prototype.hasOwnProperty.call(this.yy, k)) {
sharedState.yy[k] = this.yy[k];
}
}
lexer.setInput(input, sharedState.yy);
sharedState.yy.lexer = lexer;
sharedState.yy.parser = this;
if (typeof lexer.yylloc == 'undefined') {
lexer.yylloc = {};
}
var yyloc = lexer.yylloc;
lstack.push(yyloc);
var ranges = lexer.options && lexer.options.ranges;
if (typeof sharedState.yy.parseError === 'function') {
this.parseError = sharedState.yy.parseError;
} else {
this.parseError = Object.getPrototypeOf(this).parseError;
}
function popStack(n) {
stack.length = stack.length - 2 * n;
vstack.length = vstack.length - n;
lstack.length = lstack.length - n;
}
_token_stack:
var lex = function () {
var token;
token = lexer.lex() || EOF;
if (typeof token !== 'number') {
token = self.symbols_[token] || token;
}
return token;
};
var symbol, preErrorSymbol, state, action, a, r, yyval = {}, p, len, newState, expected;
while (true) {
state = stack[stack.length - 1];
if (this.defaultActions[state]) {
action = this.defaultActions[state];
} else {
if (symbol === null || typeof symbol == 'undefined') {
symbol = lex();
}
action = table[state] && table[state][symbol];
}
if (typeof action === 'undefined' || !action.length || !action[0]) {
var errStr = '';
expected = [];
for (p in table[state]) {
if (this.terminals_[p] && p > TERROR) {
expected.push('\'' + this.terminals_[p] + '\'');
}
}
if (lexer.showPosition) {
errStr = 'Parse error on line ' + (yylineno + 1) + ':\n' + lexer.showPosition() + '\nExpecting ' + expected.join(', ') + ', got \'' + (this.terminals_[symbol] || symbol) + '\'';
} else {
errStr = 'Parse error on line ' + (yylineno + 1) + ': Unexpected ' + (symbol == EOF ? 'end of input' : '\'' + (this.terminals_[symbol] || symbol) + '\'');
}
this.parseError(errStr, {
text: lexer.match,
token: this.terminals_[symbol] || symbol,
line: lexer.yylineno,
loc: yyloc,
expected: expected
});
}
if (action[0] instanceof Array && action.length > 1) {
throw new Error('Parse Error: multiple actions possible at state: ' + state + ', token: ' + symbol);
}
switch (action[0]) {
case 1:
stack.push(symbol);
vstack.push(lexer.yytext);
lstack.push(lexer.yylloc);
stack.push(action[1]);
symbol = null;
if (!preErrorSymbol) {
yyleng = lexer.yyleng;
yytext = lexer.yytext;
yylineno = lexer.yylineno;
yyloc = lexer.yylloc;
if (recovering > 0) {
recovering--;
}
} else {
symbol = preErrorSymbol;
preErrorSymbol = null;
}
break;
case 2:
len = this.productions_[action[1]][1];
yyval.$ = vstack[vstack.length - len];
yyval._$ = {
first_line: lstack[lstack.length - (len || 1)].first_line,
last_line: lstack[lstack.length - 1].last_line,
first_column: lstack[lstack.length - (len || 1)].first_column,
last_column: lstack[lstack.length - 1].last_column
};
if (ranges) {
yyval._$.range = [
lstack[lstack.length - (len || 1)].range[0],
lstack[lstack.length - 1].range[1]
];
}
r = this.performAction.apply(yyval, [
yytext,
yyleng,
yylineno,
sharedState.yy,
action[1],
vstack,
lstack
].concat(args));
if (typeof r !== 'undefined') {
return r;
}
if (len) {
stack = stack.slice(0, -1 * len * 2);
vstack = vstack.slice(0, -1 * len);
lstack = lstack.slice(0, -1 * len);
}
stack.push(this.productions_[action[1]][0]);
vstack.push(yyval.$);
lstack.push(yyval._$);
newState = table[stack[stack.length - 2]][stack[stack.length - 1]];
stack.push(newState);
break;
case 3:
return true;
}
}
return true;
}};
var _ = require("lodash");
/* generated by jison-lex 0.3.4 */
var lexer = (function(){
var lexer = ({
EOF:1,
parseError:function parseError(str, hash) {
if (this.yy.parser) {
this.yy.parser.parseError(str, hash);
} else {
throw new Error(str);
}
},
// resets the lexer, sets new input
setInput:function (input, yy) {
this.yy = yy || this.yy || {};
this._input = input;
this._more = this._backtrack = this.done = false;
this.yylineno = this.yyleng = 0;
this.yytext = this.matched = this.match = '';
this.conditionStack = ['INITIAL'];
this.yylloc = {
first_line: 1,
first_column: 0,
last_line: 1,
last_column: 0
};
if (this.options.ranges) {
this.yylloc.range = [0,0];
}
this.offset = 0;
return this;
},
// consumes and returns one char from the input
input:function () {
var ch = this._input[0];
this.yytext += ch;
this.yyleng++;
this.offset++;
this.match += ch;
this.matched += ch;
var lines = ch.match(/(?:\r\n?|\n).*/g);
if (lines) {
this.yylineno++;
this.yylloc.last_line++;
} else {
this.yylloc.last_column++;
}
if (this.options.ranges) {
this.yylloc.range[1]++;
}
this._input = this._input.slice(1);
return ch;
},
// unshifts one char (or a string) into the input
unput:function (ch) {
var len = ch.length;
var lines = ch.split(/(?:\r\n?|\n)/g);
this._input = ch + this._input;
this.yytext = this.yytext.substr(0, this.yytext.length - len);
//this.yyleng -= len;
this.offset -= len;
var oldLines = this.match.split(/(?:\r\n?|\n)/g);
this.match = this.match.substr(0, this.match.length - 1);
this.matched = this.matched.substr(0, this.matched.length - 1);
if (lines.length - 1) {
this.yylineno -= lines.length - 1;
}
var r = this.yylloc.range;
this.yylloc = {
first_line: this.yylloc.first_line,
last_line: this.yylineno + 1,
first_column: this.yylloc.first_column,
last_column: lines ?
(lines.length === oldLines.length ? this.yylloc.first_column : 0)
+ oldLines[oldLines.length - lines.length].length - lines[0].length :
this.yylloc.first_column - len
};
if (this.options.ranges) {
this.yylloc.range = [r[0], r[0] + this.yyleng - len];
}
this.yyleng = this.yytext.length;
return this;
},
// When called from action, caches matched text and appends it on next action
more:function () {
this._more = true;
return this;
},
// When called from action, signals the lexer that this rule fails to match the input, so the next matching rule (regex) should be tested instead.
reject:function () {
if (this.options.backtrack_lexer) {
this._backtrack = true;
} else {
return this.parseError('Lexical error on line ' + (this.yylineno + 1) + '. You can only invoke reject() in the lexer when the lexer is of the backtracking persuasion (options.backtrack_lexer = true).\n' + this.showPosition(), {
text: "",
token: null,
line: this.yylineno
});
}
return this;
},
// retain first n characters of the match
less:function (n) {
this.unput(this.match.slice(n));
},
// displays already matched input, i.e. for error messages
pastInput:function () {
var past = this.matched.substr(0, this.matched.length - this.match.length);
return (past.length > 20 ? '...':'') + past.substr(-20).replace(/\n/g, "");
},
// displays upcoming input, i.e. for error messages
upcomingInput:function () {
var next = this.match;
if (next.length < 20) {
next += this._input.substr(0, 20-next.length);
}
return (next.substr(0,20) + (next.length > 20 ? '...' : '')).replace(/\n/g, "");
},
// displays the character position where the lexing error occurred, i.e. for error messages
showPosition:function () {
var pre = this.pastInput();
var c = new Array(pre.length + 1).join("-");
return pre + this.upcomingInput() + "\n" + c + "^";
},
// test the lexed token: return FALSE when not a match, otherwise return token
test_match:function (match, indexed_rule) {
var token,
lines,
backup;
if (this.options.backtrack_lexer) {
// save context
backup = {
yylineno: this.yylineno,
yylloc: {
first_line: this.yylloc.first_line,
last_line: this.last_line,
first_column: this.yylloc.first_column,
last_column: this.yylloc.last_column
},
yytext: this.yytext,
match: this.match,
matches: this.matches,
matched: this.matched,
yyleng: this.yyleng,
offset: this.offset,
_more: this._more,
_input: this._input,
yy: this.yy,
conditionStack: this.conditionStack.slice(0),
done: this.done
};
if (this.options.ranges) {
backup.yylloc.range = this.yylloc.range.slice(0);
}
}
lines = match[0].match(/(?:\r\n?|\n).*/g);
if (lines) {
this.yylineno += lines.length;
}
this.yylloc = {
first_line: this.yylloc.last_line,
last_line: this.yylineno + 1,
first_column: this.yylloc.last_column,
last_column: lines ?
lines[lines.length - 1].length - lines[lines.length - 1].match(/\r?\n?/)[0].length :
this.yylloc.last_column + match[0].length
};
this.yytext += match[0];
this.match += match[0];
this.matches = match;
this.yyleng = this.yytext.length;
if (this.options.ranges) {
this.yylloc.range = [this.offset, this.offset += this.yyleng];
}
this._more = false;
this._backtrack = false;
this._input = this._input.slice(match[0].length);
this.matched += match[0];
token = this.performAction.call(this, this.yy, this, indexed_rule, this.conditionStack[this.conditionStack.length - 1]);
if (this.done && this._input) {
this.done = false;
}
if (token) {
return token;
} else if (this._backtrack) {
// recover context
for (var k in backup) {
this[k] = backup[k];
}
return false; // rule action called reject() implying the next rule should be tested instead.
}
return false;
},
// return next match in input
next:function () {
if (this.done) {
return this.EOF;
}
if (!this._input) {
this.done = true;
}
var token,
match,
tempMatch,
index;
if (!this._more) {
this.yytext = '';
this.match = '';
}
var rules = this._currentRules();
for (var i = 0; i < rules.length; i++) {
tempMatch = this._input.match(this.rules[rules[i]]);
if (tempMatch && (!match || tempMatch[0].length > match[0].length)) {
match = tempMatch;
index = i;
if (this.options.backtrack_lexer) {
token = this.test_match(tempMatch, rules[i]);
if (token !== false) {
return token;
} else if (this._backtrack) {
match = false;
continue; // rule action called reject() implying a rule MISmatch.
} else {
// else: this is a lexer rule which consumes input without producing a token (e.g. whitespace)
return false;
}
} else if (!this.options.flex) {
break;
}
}
}
if (match) {
token = this.test_match(match, rules[index]);
if (token !== false) {
return token;
}
// else: this is a lexer rule which consumes input without producing a token (e.g. whitespace)
return false;
}
if (this._input === "") {
return this.EOF;
} else {
return this.parseError('Lexical error on line ' + (this.yylineno + 1) + '. Unrecognized text.\n' + this.showPosition(), {
text: "",
token: null,
line: this.yylineno
});
}
},
// return next match that has a token
lex:function lex() {
var r = this.next();
if (r) {
return r;
} else {
return this.lex();
}
},
// activates a new lexer condition state (pushes the new lexer condition state onto the condition stack)
begin:function begin(condition) {
this.conditionStack.push(condition);
},
// pop the previously active lexer condition state off the condition stack
popState:function popState() {
var n = this.conditionStack.length - 1;
if (n > 0) {
return this.conditionStack.pop();
} else {
return this.conditionStack[0];
}
},
// produce the lexer rule set which is active for the currently active lexer condition state
_currentRules:function _currentRules() {
if (this.conditionStack.length && this.conditionStack[this.conditionStack.length - 1]) {
return this.conditions[this.conditionStack[this.conditionStack.length - 1]].rules;
} else {
return this.conditions["INITIAL"].rules;
}
},
// return the currently active lexer condition state; when an index argument is provided it produces the N-th previous condition state, if available
topState:function topState(n) {
n = this.conditionStack.length - 1 - Math.abs(n || 0);
if (n >= 0) {
return this.conditionStack[n];
} else {
return "INITIAL";
}
},
// alias for begin(condition)
pushState:function pushState(condition) {
this.begin(condition);
},
// return the number of states currently on the stack
stateStackSize:function stateStackSize() {
return this.conditionStack.length;
},
options: {},
performAction: function anonymous(yy,yy_,$avoiding_name_collisions,YY_START) {
var YYSTATE=YY_START;
switch($avoiding_name_collisions) {
case 0: this.begin('notes'); return 19;
break;
case 1: this.begin('options'); return 13;
break;
case 2: this.begin('options'); return 14;
break;
case 3: this.begin('options'); return 15;
break;
case 4: this.begin('options'); return 11;
break;
case 5: this.begin('text'); return 17;
break;
case 6: this.begin('options'); return 21;
break;
case 7:return 22
break;
case 8: this.begin('annotations'); return "$"
break;
case 9: this.begin('notes'); return "$"
break;
case 10:return 22
break;
case 11: this.begin('command'); return "!"
break;
case 12: this.begin('notes'); return "!"
break;
case 13:return 74
break;
case 14:return 24
break;
case 15:return 41
break;
case 16:return '+'
break;
case 17:return 38
break;
case 18:return 23
break;
case 19:return 45
break;
case 20:return 46
break;
case 21:return 31
break;
case 22:return 32
break;
case 23:return 70
break;
case 24:return 25
break;
case 25:return 37
break;
case 26:return 44
break;
case 27:return 75
break;
case 28:return 79
break;
case 29:return 65
break;
case 30:return 62
break;
case 31:return 57
break;
case 32:return 66
break;
case 33:return 63
break;
case 34:return 64
break;
case 35:return 61
break;
case 36:return 50
break;
case 37:return 67
break;
case 38:return 68
break;
case 39:return 69
break;
case 40:return 59
break;
case 41:return 48
break;
case 42:return 58
break;
case 43:return 56
break;
case 44:return 57
break;
case 45:return 59
break;
case 46:return 60
break;
case 47:return 76
break;
case 48:return 80
break;
case 49:return 81
break;
case 50: this.begin('INITIAL');
break;
case 51:/* skip whitespace */
break;
case 52:return 5
break;
case 53:return 'INVALID'
break;
}
},
rules: [/^(?:notes\b)/,/^(?:tabstave\b)/,/^(?:stave\b)/,/^(?:voice\b)/,/^(?:options\b)/,/^(?:text\b)/,/^(?:slur\b)/,/^(?:[^\s=]+)/,/^(?:[$])/,/^(?:[$])/,/^(?:[^,$]+)/,/^(?:[!])/,/^(?:[!])/,/^(?:[^!]+)/,/^(?:[^,\r\n]+)/,/^(?:\/)/,/^(?:\+)/,/^(?::)/,/^(?:=)/,/^(?:\()/,/^(?:\))/,/^(?:\[)/,/^(?:\])/,/^(?:\^)/,/^(?:,)/,/^(?:\|)/,/^(?:\.)/,/^(?:#)/,/^(?:@)/,/^(?:[b])/,/^(?:[s])/,/^(?:[h])/,/^(?:[p])/,/^(?:[t])/,/^(?:[T])/,/^(?:[-])/,/^(?:[_])/,/^(?:[v])/,/^(?:[V])/,/^(?:[u])/,/^(?:[d])/,/^(?:[0-9]+)/,/^(?:[q])/,/^(?:[w])/,/^(?:[h])/,/^(?:[d])/,/^(?:[S])/,/^(?:[A-GXLR])/,/^(?:[n])/,/^(?:[~])/,/^(?:[\r\n]+)/,/^(?:\s+)/,/^(?:$)/,/^(?:.)/],
conditions: {"notes":{"rules":[8,11,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53],"inclusive":true},"text":{"rules":[14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,41,42,43,44,45,50,51,52,53],"inclusive":true},"slur":{"rules":[15,16,17,18,19,20,21,22,23,24,25,26,27,28,50,51,52,53],"inclusive":true},"annotations":{"rules":[9,10,15,16,17,18,19,20,21,22,23,24,25,26,27,28,50,51,52,53],"inclusive":true},"options":{"rules":[7,15,16,17,18,19,20,21,22,23,24,25,26,27,28,50,51,52,53],"inclusive":true},"command":{"rules":[12,13,15,16,17,18,19,20,21,22,23,24,25,26,27,28,50,51,52,53],"inclusive":true},"INITIAL":{"rules":[0,1,2,3,4,5,6,7,15,16,17,18,19,20,21,22,23,24,25,26,27,28,50,51,52,53],"inclusive":true}}
});
return lexer;
})();
parser.lexer = lexer;
function Parser () {
this.yy = {};
}
Parser.prototype = parser;parser.Parser = Parser;
return new Parser;
})();
if (typeof require !== 'undefined' && typeof exports !== 'undefined') {
exports.parser = parser;
exports.Parser = parser.Parser;
exports.parse = function () { return parser.parse.apply(parser, arguments); };
exports.main = function commonjsMain(args) {
if (!args[1]) {
console.log('Usage: '+args[0]+' FILE');
process.exit(1);
}
var source = require('fs').readFileSync(require('path').normalize(args[1]), "utf8");
return exports.parser.parse(source);
};
if (typeof module !== 'undefined' && require.main === module) {
exports.main(process.argv.slice(1));
}
}
}).call(this,require('_process'))
},{"_process":6,"fs":2,"lodash":4,"path":5}],2:[function(require,module,exports){
},{}],3:[function(require,module,exports){
/*eslint-disable no-unused-vars*/
/*!
* jQuery JavaScript Library v3.1.0
* https://jquery.com/
*
* Includes Sizzle.js
* https://sizzlejs.com/
*
* Copyright jQuery Foundation and other contributors
* Released under the MIT license
* https://jquery.org/license
*
* Date: 2016-07-07T21:44Z
*/
( function( global, factory ) {
"use strict";
if ( typeof module === "object" && typeof module.exports === "object" ) {
// For CommonJS and CommonJS-like environments where a proper `window`
// is present, execute the factory and get jQuery.
// For environments that do not have a `window` with a `document`
// (such as Node.js), expose a factory as module.exports.
// This accentuates the need for the creation of a real `window`.
// e.g. var jQuery = require("jquery")(window);
// See ticket #14549 for more info.
module.exports = global.document ?
factory( global, true ) :
function( w ) {
if ( !w.document ) {
throw new Error( "jQuery requires a window with a document" );
}
return factory( w );
};
} else {
factory( global );
}
// Pass this if window is not defined yet
} )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) {
// Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1
// throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode
// arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common
// enough that all such attempts are guarded in a try block.
"use strict";
var arr = [];
var document = window.document;
var getProto = Object.getPrototypeOf;
var slice = arr.slice;
var concat = arr.concat;
var push = arr.push;
var indexOf = arr.indexOf;
var class2type = {};
var toString = class2type.toString;
var hasOwn = class2type.hasOwnProperty;
var fnToString = hasOwn.toString;
var ObjectFunctionString = fnToString.call( Object );
var support = {};
function DOMEval( code, doc ) {
doc = doc || document;
var script = doc.createElement( "script" );
script.text = code;
doc.head.appendChild( script ).parentNode.removeChild( script );
}
/* global Symbol */
// Defining this global in .eslintrc would create a danger of using the global
// unguarded in another place, it seems safer to define global only for this module
var
version = "3.1.0",
// Define a local copy of jQuery
jQuery = function( selector, context ) {
// The jQuery object is actually just the init constructor 'enhanced'
// Need init if jQuery is called (just allow error to be thrown if not included)
return new jQuery.fn.init( selector, context );
},
// Support: Android <=4.0 only
// Make sure we trim BOM and NBSP
rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,
// Matches dashed string for camelizing
rmsPrefix = /^-ms-/,
rdashAlpha = /-([a-z])/g,
// Used by jQuery.camelCase as callback to replace()
fcamelCase = function( all, letter ) {
return letter.toUpperCase();
};
jQuery.fn = jQuery.prototype = {
// The current version of jQuery being used
jquery: version,
constructor: jQuery,
// The default length of a jQuery object is 0
length: 0,
toArray: function() {
return slice.call( this );
},
// Get the Nth element in the matched element set OR
// Get the whole matched element set as a clean array
get: function( num ) {
return num != null ?
// Return just the one element from the set
( num < 0 ? this[ num + this.length ] : this[ num ] ) :
// Return all the elements in a clean array
slice.call( this );
},
// Take an array of elements and push it onto the stack
// (returning the new matched element set)
pushStack: function( elems ) {
// Build a new jQuery matched element set
var ret = jQuery.merge( this.constructor(), elems );
// Add the old object onto the stack (as a reference)
ret.prevObject = this;
// Return the newly-formed element set
return ret;
},
// Execute a callback for every element in the matched set.
each: function( callback ) {
return jQuery.each( this, callback );
},
map: function( callback ) {
return this.pushStack( jQuery.map( this, function( elem, i ) {
return callback.call( elem, i, elem );
} ) );
},
slice: function() {
return this.pushStack( slice.apply( this, arguments ) );
},
first: function() {
return this.eq( 0 );
},
last: function() {
return this.eq( -1 );
},
eq: function( i ) {
var len = this.length,
j = +i + ( i < 0 ? len : 0 );
return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] );
},
end: function() {
return this.prevObject || this.constructor();
},
// For internal use only.
// Behaves like an Array's method, not like a jQuery method.
push: push,
sort: arr.sort,
splice: arr.splice
};
jQuery.extend = jQuery.fn.extend = function() {
var options, name, src, copy, copyIsArray, clone,
target = arguments[ 0 ] || {},
i = 1,
length = arguments.length,
deep = false;
// Handle a deep copy situation
if ( typeof target === "boolean" ) {
deep = target;
// Skip the boolean and the target
target = arguments[ i ] || {};
i++;
}
// Handle case when target is a string or something (possible in deep copy)
if ( typeof target !== "object" && !jQuery.isFunction( target ) ) {
target = {};
}
// Extend jQuery itself if only one argument is passed
if ( i === length ) {
target = this;
i--;
}
for ( ; i < length; i++ ) {
// Only deal with non-null/undefined values
if ( ( options = arguments[ i ] ) != null ) {
// Extend the base object
for ( name in options ) {
src = target[ name ];
copy = options[ name ];
// Prevent never-ending loop
if ( target === copy ) {
continue;
}
// Recurse if we're merging plain objects or arrays
if ( deep && copy && ( jQuery.isPlainObject( copy ) ||
( copyIsArray = jQuery.isArray( copy ) ) ) ) {
if ( copyIsArray ) {
copyIsArray = false;
clone = src && jQuery.isArray( src ) ? src : [];
} else {
clone = src && jQuery.isPlainObject( src ) ? src : {};
}
// Never move original objects, clone them
target[ name ] = jQuery.extend( deep, clone, copy );
// Don't bring in undefined values
} else if ( copy !== undefined ) {
target[ name ] = copy;
}
}
}
}
// Return the modified object
return target;
};
jQuery.extend( {
// Unique for each copy of jQuery on the page
expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),
// Assume jQuery is ready without the ready module
isReady: true,
error: function( msg ) {
throw new Error( msg );
},
noop: function() {},
isFunction: function( obj ) {
return jQuery.type( obj ) === "function";
},
isArray: Array.isArray,
isWindow: function( obj ) {
return obj != null && obj === obj.window;
},
isNumeric: function( obj ) {
// As of jQuery 3.0, isNumeric is limited to
// strings and numbers (primitives or objects)
// that can be coerced to finite numbers (gh-2662)
var type = jQuery.type( obj );
return ( type === "number" || type === "string" ) &&
// parseFloat NaNs numeric-cast false positives ("")
// ...but misinterprets leading-number strings, particularly hex literals ("0x...")
// subtraction forces infinities to NaN
!isNaN( obj - parseFloat( obj ) );
},
isPlainObject: function( obj ) {
var proto, Ctor;
// Detect obvious negatives
// Use toString instead of jQuery.type to catch host objects
if ( !obj || toString.call( obj ) !== "[object Object]" ) {
return false;
}
proto = getProto( obj );
// Objects with no prototype (e.g., `Object.create( null )`) are plain
if ( !proto ) {
return true;
}
// Objects with prototype are plain iff they were constructed by a global Object function
Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor;
return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString;
},
isEmptyObject: function( obj ) {
/* eslint-disable no-unused-vars */
// See https://github.com/eslint/eslint/issues/6125
var name;
for ( name in obj ) {
return false;
}
return true;
},
type: function( obj ) {
if ( obj == null ) {
return obj + "";
}
// Support: Android <=2.3 only (functionish RegExp)
return typeof obj === "object" || typeof obj === "function" ?
class2type[ toString.call( obj ) ] || "object" :
typeof obj;
},
// Evaluates a script in a global context
globalEval: function( code ) {
DOMEval( code );
},
// Convert dashed to camelCase; used by the css and data modules
// Support: IE <=9 - 11, Edge 12 - 13
// Microsoft forgot to hump their vendor prefix (#9572)
camelCase: function( string ) {
return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
},
nodeName: function( elem, name ) {
return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
},
each: function( obj, callback ) {
var length, i = 0;
if ( isArrayLike( obj ) ) {
length = obj.length;
for ( ; i < length; i++ ) {
if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
break;
}
}
} else {
for ( i in obj ) {
if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
break;
}
}
}
return obj;
},
// Support: Android <=4.0 only
trim: function( text ) {
return text == null ?
"" :
( text + "" ).replace( rtrim, "" );
},
// results is for internal usage only
makeArray: function( arr, results ) {
var ret = results || [];
if ( arr != null ) {
if ( isArrayLike( Object( arr ) ) ) {
jQuery.merge( ret,
typeof arr === "string" ?
[ arr ] : arr
);
} else {
push.call( ret, arr );
}
}
return ret;
},
inArray: function( elem, arr, i ) {
return arr == null ? -1 : indexOf.call( arr, elem, i );
},
// Support: Android <=4.0 only, PhantomJS 1 only
// push.apply(_, arraylike) throws on ancient WebKit
merge: function( first, second ) {
var len = +second.length,
j = 0,
i = first.length;
for ( ; j < len; j++ ) {
first[ i++ ] = second[ j ];
}
first.length = i;
return first;
},
grep: function( elems, callback, invert ) {
var callbackInverse,
matches = [],
i = 0,
length = elems.length,
callbackExpect = !invert;
// Go through the array, only saving the items
// that pass the validator function
for ( ; i < length; i++ ) {
callbackInverse = !callback( elems[ i ], i );
if ( callbackInverse !== callbackExpect ) {
matches.push( elems[ i ] );
}
}
return matches;
},
// arg is for internal usage only
map: function( elems, callback, arg ) {
var length, value,
i = 0,
ret = [];
// Go through the array, translating each of the items to their new values
if ( isArrayLike( elems ) ) {
length = elems.length;
for ( ; i < length; i++ ) {
value = callback( elems[ i ], i, arg );
if ( value != null ) {
ret.push( value );
}
}
// Go through every key on the object,
} else {
for ( i in elems ) {
value = callback( elems[ i ], i, arg );
if ( value != null ) {
ret.push( value );
}
}
}
// Flatten any nested arrays
return concat.apply( [], ret );
},
// A global GUID counter for objects
guid: 1,
// Bind a function to a context, optionally partially applying any
// arguments.
proxy: function( fn, context ) {
var tmp, args, proxy;
if ( typeof context === "string" ) {
tmp = fn[ context ];
context = fn;
fn = tmp;
}
// Quick check to determine if target is callable, in the spec
// this throws a TypeError, but we will just return undefined.
if ( !jQuery.isFunction( fn ) ) {
return undefined;
}
// Simulated bind
args = slice.call( arguments, 2 );
proxy = function() {
return fn.apply( context || this, args.concat( slice.call( arguments ) ) );
};
// Set the guid of unique handler to the same of original handler, so it can be removed
proxy.guid = fn.guid = fn.guid || jQuery.guid++;
return proxy;
},
now: Date.now,
// jQuery.support is not used in Core but other projects attach their
// properties to it so it needs to exist.
support: support
} );
if ( typeof Symbol === "function" ) {
jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ];
}
// Populate the class2type map
jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ),
function( i, name ) {
class2type[ "[object " + name + "]" ] = name.toLowerCase();
} );
function isArrayLike( obj ) {
// Support: real iOS 8.2 only (not reproducible in simulator)
// `in` check used to prevent JIT error (gh-2145)
// hasOwn isn't used here due to false negatives
// regarding Nodelist length in IE
var length = !!obj && "length" in obj && obj.length,
type = jQuery.type( obj );
if ( type === "function" || jQuery.isWindow( obj ) ) {
return false;
}
return type === "array" || length === 0 ||
typeof length === "number" && length > 0 && ( length - 1 ) in obj;
}
var Sizzle =
/*!
* Sizzle CSS Selector Engine v2.3.0
* https://sizzlejs.com/
*
* Copyright jQuery Foundation and other contributors
* Released under the MIT license
* http://jquery.org/license
*
* Date: 2016-01-04
*/
(function( window ) {
var i,
support,
Expr,
getText,
isXML,
tokenize,
compile,
select,
outermostContext,
sortInput,
hasDuplicate,
// Local document vars
setDocument,
document,
docElem,
documentIsHTML,
rbuggyQSA,
rbuggyMatches,
matches,
contains,
// Instance-specific data
expando = "sizzle" + 1 * new Date(),
preferredDoc = window.document,
dirruns = 0,
done = 0,
classCache = createCache(),
tokenCache = createCache(),
compilerCache = createCache(),
sortOrder = function( a, b ) {
if ( a === b ) {
hasDuplicate = true;
}
return 0;
},
// Instance methods
hasOwn = ({}).hasOwnProperty,
arr = [],
pop = arr.pop,
push_native = arr.push,
push = arr.push,
slice = arr.slice,
// Use a stripped-down indexOf as it's faster than native
// https://jsperf.com/thor-indexof-vs-for/5
indexOf = function( list, elem ) {
var i = 0,
len = list.length;
for ( ; i < len; i++ ) {
if ( list[i] === elem ) {
return i;
}
}
return -1;
},
booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",
// Regular expressions
// http://www.w3.org/TR/css3-selectors/#whitespace
whitespace = "[\\x20\\t\\r\\n\\f]",
// http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
identifier = "(?:\\\\.|[\\w-]|[^\0-\\xa0])+",
// Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +
// Operator (capture 2)
"*([*^$|!~]?=)" + whitespace +
// "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
"*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace +
"*\\]",
pseudos = ":(" + identifier + ")(?:\\((" +
// To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
// 1. quoted (capture 3; capture 4 or capture 5)
"('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
// 2. simple (capture 6)
"((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
// 3. anything else (capture 2)
".*" +
")\\)|)",
// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
rwhitespace = new RegExp( whitespace + "+", "g" ),
rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),
rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),
rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ),
rpseudo = new RegExp( pseudos ),
ridentifier = new RegExp( "^" + identifier + "$" ),
matchExpr = {
"ID": new RegExp( "^#(" + identifier + ")" ),
"CLASS": new RegExp( "^\\.(" + identifier + ")" ),
"TAG": new RegExp( "^(" + identifier + "|[*])" ),
"ATTR": new RegExp( "^" + attributes ),
"PSEUDO": new RegExp( "^" + pseudos ),
"CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
"*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
"*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
"bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
// For use in libraries implementing .is()
// We use this for POS matching in `select`
"needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
},
rinputs = /^(?:input|select|textarea|button)$/i,
rheader = /^h\d$/i,
rnative = /^[^{]+\{\s*\[native \w/,
// Easily-parseable/retrievable ID or TAG or CLASS selectors
rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
rsibling = /[+~]/,
// CSS escapes
// http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),
funescape = function( _, escaped, escapedWhitespace ) {
var high = "0x" + escaped - 0x10000;
// NaN means non-codepoint
// Support: Firefox<24
// Workaround erroneous numeric interpretation of +"0x"
return high !== high || escapedWhitespace ?
escaped :
high < 0 ?
// BMP codepoint
String.fromCharCode( high + 0x10000 ) :
// Supplemental Plane codepoint (surrogate pair)
String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
},
// CSS string/identifier serialization
// https://drafts.csswg.org/cssom/#common-serializing-idioms
rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\x80-\uFFFF\w-]/g,
fcssescape = function( ch, asCodePoint ) {
if ( asCodePoint ) {
// U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER
if ( ch === "\0" ) {
return "\uFFFD";
}
// Control characters and (dependent upon position) numbers get escaped as code points
return ch.slice( 0, -1 ) + "\\" + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " ";
}
// Other potentially-special ASCII characters get backslash-escaped
return "\\" + ch;
},
// Used for iframes
// See setDocument()
// Removing the function wrapper causes a "Permission Denied"
// error in IE
unloadHandler = function() {
setDocument();
},
disabledAncestor = addCombinator(
function( elem ) {
return elem.disabled === true;
},
{ dir: "parentNode", next: "legend" }
);
// Optimize for push.apply( _, NodeList )
try {
push.apply(
(arr = slice.call( preferredDoc.childNodes )),
preferredDoc.childNodes
);
// Support: Android<4.0
// Detect silently failing push.apply
arr[ preferredDoc.childNodes.length ].nodeType;
} catch ( e ) {
push = { apply: arr.length ?
// Leverage slice if possible
function( target, els ) {
push_native.apply( target, slice.call(els) );
} :
// Support: IE<9
// Otherwise append directly
function( target, els ) {
var j = target.length,
i = 0;
// Can't trust NodeList.length
while ( (target[j++] = els[i++]) ) {}
target.length = j - 1;
}
};
}
function Sizzle( selector, context, results, seed ) {
var m, i, elem, nid, match, groups, newSelector,
newContext = context && context.ownerDocument,
// nodeType defaults to 9, since context defaults to document
nodeType = context ? context.nodeType : 9;
results = results || [];
// Return early from calls with invalid selector or context
if ( typeof selector !== "string" || !selector ||
nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {
return results;
}
// Try to shortcut find operations (as opposed to filters) in HTML documents
if ( !seed ) {
if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
setDocument( context );
}
context = context || document;
if ( documentIsHTML ) {
// If the selector is sufficiently simple, try using a "get*By*" DOM method
// (excepting DocumentFragment context, where the methods don't exist)
if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) {
// ID selector
if ( (m = match[1]) ) {
// Document context
if ( nodeType === 9 ) {
if ( (elem = context.getElementById( m )) ) {
// Support: IE, Opera, Webkit
// TODO: identify versions
// getElementById can match elements by name instead of ID
if ( elem.id === m ) {
results.push( elem );
return results;
}
} else {
return results;
}
// Element context
} else {
// Support: IE, Opera, Webkit
// TODO: identify versions
// getElementById can match elements by name instead of ID
if ( newContext && (elem = newContext.getElementById( m )) &&
contains( context, elem ) &&
elem.id === m ) {
results.push( elem );
return results;
}
}
// Type selector
} else if ( match[2] ) {
push.apply( results, context.getElementsByTagName( selector ) );
return results;
// Class selector
} else if ( (m = match[3]) && support.getElementsByClassName &&
context.getElementsByClassName ) {
push.apply( results, context.getElementsByClassName( m ) );
return results;
}
}
// Take advantage of querySelectorAll
if ( support.qsa &&
!compilerCache[ selector + " " ] &&
(!rbuggyQSA || !rbuggyQSA.test( selector )) ) {
if ( nodeType !== 1 ) {
newContext = context;
newSelector = selector;
// qSA looks outside Element context, which is not what we want
// Thanks to Andrew Dupont for this workaround technique
// Support: IE <=8
// Exclude object elements
} else if ( context.nodeName.toLowerCase() !== "object" ) {
// Capture the context ID, setting it first if necessary
if ( (nid = context.getAttribute( "id" )) ) {
nid = nid.replace( rcssescape, fcssescape );
} else {
context.setAttribute( "id", (nid = expando) );
}
// Prefix every selector in the list
groups = tokenize( selector );
i = groups.length;
while ( i-- ) {
groups[i] = "#" + nid + " " + toSelector( groups[i] );
}
newSelector = groups.join( "," );
// Expand context for sibling selectors
newContext = rsibling.test( selector ) && testContext( context.parentNode ) ||
context;
}
if ( newSelector ) {
try {
push.apply( results,
newContext.querySelectorAll( newSelector )
);
return results;
} catch ( qsaError ) {
} finally {
if ( nid === expando ) {
context.removeAttribute( "id" );
}
}
}
}
}
}
// All others
return select( selector.replace( rtrim, "$1" ), context, results, seed );
}
/**
* Create key-value caches of limited size
* @returns {function(string, object)} Returns the Object data after storing it on itself with
* property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
* deleting the oldest entry
*/
function createCache() {
var keys = [];
function cache( key, value ) {
// Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
if ( keys.push( key + " " ) > Expr.cacheLength ) {
// Only keep the most recent entries
delete cache[ keys.shift() ];
}
return (cache[ key + " " ] = value);
}
return cache;
}
/**
* Mark a function for special use by Sizzle
* @param {Function} fn The function to mark
*/
function markFunction( fn ) {
fn[ expando ] = true;
return fn;
}
/**
* Support testing using an element
* @param {Function} fn Passed the created element and returns a boolean result
*/
function assert( fn ) {
var el = document.createElement("fieldset");
try {
return !!fn( el );
} catch (e) {
return false;
} finally {
// Remove from its parent by default
if ( el.parentNode ) {
el.parentNode.removeChild( el );
}
// release memory in IE
el = null;
}
}
/**
* Adds the same handler for all of the specified attrs
* @param {String} attrs Pipe-separated list of attributes
* @param {Function} handler The method that will be applied
*/
function addHandle( attrs, handler ) {
var arr = attrs.split("|"),
i = arr.length;
while ( i-- ) {
Expr.attrHandle[ arr[i] ] = handler;
}
}
/**
* Checks document order of two siblings
* @param {Element} a
* @param {Element} b
* @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
*/
function siblingCheck( a, b ) {
var cur = b && a,
diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
a.sourceIndex - b.sourceIndex;
// Use IE sourceIndex if available on both nodes
if ( diff ) {
return diff;
}
// Check if b follows a
if ( cur ) {
while ( (cur = cur.nextSibling) ) {
if ( cur === b ) {
return -1;
}
}
}
return a ? 1 : -1;
}
/**
* Returns a function to use in pseudos for input types
* @param {String} type
*/
function createInputPseudo( type ) {
return function( elem ) {
var name = elem.nodeName.toLowerCase();
return name === "input" && elem.type === type;
};
}
/**
* Returns a function to use in pseudos for buttons
* @param {String} type
*/
function createButtonPseudo( type ) {
return function( elem ) {
var name = elem.nodeName.toLowerCase();
return (name === "input" || name === "button") && elem.type === type;
};
}
/**
* Returns a function to use in pseudos for :enabled/:disabled
* @param {Boolean} disabled true for :disabled; false for :enabled
*/
function createDisabledPseudo( disabled ) {
// Known :disabled false positives:
// IE: *[disabled]:not(button, input, select, textarea, optgroup, option, menuitem, fieldset)
// not IE: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable
return function( elem ) {
// Check form elements and option elements for explicit disabling
return "label" in elem && elem.disabled === disabled ||
"form" in elem && elem.disabled === disabled ||
// Check non-disabled form elements for fieldset[disabled] ancestors
"form" in elem && elem.disabled === false && (
// Support: IE6-11+
// Ancestry is covered for us
elem.isDisabled === disabled ||
// Otherwise, assume any non-<option> under fieldset[disabled] is disabled
/* jshint -W018 */
elem.isDisabled !== !disabled &&
("label" in elem || !disabledAncestor( elem )) !== disabled
);
};
}
/**
* Returns a function to use in pseudos for positionals
* @param {Function} fn
*/
function createPositionalPseudo( fn ) {
return markFunction(function( argument ) {
argument = +argument;
return markFunction(function( seed, matches ) {
var j,
matchIndexes = fn( [], seed.length, argument ),
i = matchIndexes.length;
// Match elements found at the specified indexes
while ( i-- ) {
if ( seed[ (j = matchIndexes[i]) ] ) {
seed[j] = !(matches[j] = seed[j]);
}
}
});
});
}
/**
* Checks a node for validity as a Sizzle context
* @param {Element|Object=} context
* @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
*/
function testContext( context ) {
return context && typeof context.getElementsByTagName !== "undefined" && context;
}
// Expose support vars for convenience
support = Sizzle.support = {};
/**
* Detects XML nodes
* @param {Element|Object} elem An element or a document
* @returns {Boolean} True iff elem is a non-HTML XML node
*/
isXML = Sizzle.isXML = function( elem ) {
// documentElement is verified for cases where it doesn't yet exist
// (such as loading iframes in IE - #4833)
var documentElement = elem && (elem.ownerDocument || elem).documentElement;
return documentElement ? documentElement.nodeName !== "HTML" : false;
};
/**
* Sets document-related variables once based on the current document
* @param {Element|Object} [doc] An element or document object to use to set the document
* @returns {Object} Returns the current document
*/
setDocument = Sizzle.setDocument = function( node ) {
var hasCompare, subWindow,
doc = node ? node.ownerDocument || node : preferredDoc;
// Return early if doc is invalid or already selected
if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
return document;
}
// Update global variables
document = doc;
docElem = document.documentElement;
documentIsHTML = !isXML( document );
// Support: IE 9-11, Edge
// Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
if ( preferredDoc !== document &&
(subWindow = document.defaultView) && subWindow.top !== subWindow ) {
// Support: IE 11, Edge
if ( subWindow.addEventListener ) {
subWindow.addEventListener( "unload", unloadHandler, false );
// Support: IE 9 - 10 only
} else if ( subWindow.attachEvent ) {
subWindow.attachEvent( "onunload", unloadHandler );
}
}
/* Attributes
---------------------------------------------------------------------- */
// Support: IE<8
// Verify that getAttribute really returns attributes and not properties
// (excepting IE8 booleans)
support.attributes = assert(function( el ) {
el.className = "i";
return !el.getAttribute("className");
});
/* getElement(s)By*
---------------------------------------------------------------------- */
// Check if getElementsByTagName("*") returns only elements
support.getElementsByTagName = assert(function( el ) {
el.appendChild( document.createComment("") );
return !el.getElementsByTagName("*").length;
});
// Support: IE<9
support.getElementsByClassName = rnative.test( document.getElementsByClassName );
// Support: IE<10
// Check if getElementById returns elements by name
// The broken getElementById methods don't pick up programmatically-set names,
// so use a roundabout getElementsByName test
support.getById = assert(function( el ) {
docElem.appendChild( el ).id = expando;
return !document.getElementsByName || !document.getElementsByName( expando ).length;
});
// ID find and filter
if ( support.getById ) {
Expr.find["ID"] = function( id, context ) {
if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
var m = context.getElementById( id );
return m ? [ m ] : [];
}
};
Expr.filter["ID"] = function( id ) {
var attrId = id.replace( runescape, funescape );
return function( elem ) {
return elem.getAttribute("id") === attrId;
};
};
} else {
// Support: IE6/7
// getElementById is not reliable as a find shortcut
delete Expr.find["ID"];
Expr.filter["ID"] = function( id ) {
var attrId = id.replace( runescape, funescape );
return function( elem ) {
var node = typeof elem.getAttributeNode !== "undefined" &&
elem.getAttributeNode("id");
return node && node.value === attrId;
};
};
}
// Tag
Expr.find["TAG"] = support.getElementsByTagName ?
function( tag, context ) {
if ( typeof context.getElementsByTagName !== "undefined" ) {
return context.getElementsByTagName( tag );
// DocumentFragment nodes don't have gEBTN
} else if ( support.qsa ) {
return context.querySelectorAll( tag );
}
} :
function( tag, context ) {
var elem,
tmp = [],
i = 0,
// By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
results = context.getElementsByTagName( tag );
// Filter out possible comments
if ( tag === "*" ) {
while ( (elem = results[i++]) ) {
if ( elem.nodeType === 1 ) {
tmp.push( elem );
}
}
return tmp;
}
return results;
};
// Class
Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) {
if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) {
return context.getElementsByClassName( className );
}
};
/* QSA/matchesSelector
---------------------------------------------------------------------- */
// QSA and matchesSelector support
// matchesSelector(:active) reports false when true (IE9/Opera 11.5)
rbuggyMatches = [];
// qSa(:focus) reports false when true (Chrome 21)
// We allow this because of a bug in IE8/9 that throws an error
// whenever `document.activeElement` is accessed on an iframe
// So, we allow :focus to pass through QSA all the time to avoid the IE error
// See https://bugs.jquery.com/ticket/13378
rbuggyQSA = [];
if ( (support.qsa = rnative.test( document.querySelectorAll )) ) {
// Build QSA regex
// Regex strategy adopted from Diego Perini
assert(function( el ) {
// Select is set to empty string on purpose
// This is to test IE's treatment of not explicitly
// setting a boolean content attribute,
// since its presence should be enough
// https://bugs.jquery.com/ticket/12359
docElem.appendChild( el ).innerHTML = "<a id='" + expando + "'></a>" +
"<select id='" + expando + "-\r\\' msallowcapture=''>" +
"<option selected=''></option></select>";
// Support: IE8, Opera 11-12.16
// Nothing should be selected when empty strings follow ^= or $= or *=
// The test attribute must be unknown in Opera but "safe" for WinRT
// https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
if ( el.querySelectorAll("[msallowcapture^='']").length ) {
rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
}
// Support: IE8
// Boolean attributes and "value" are not treated correctly
if ( !el.querySelectorAll("[selected]").length ) {
rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
}
// Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+
if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) {
rbuggyQSA.push("~=");
}
// Webkit/Opera - :checked should return selected option elements
// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
// IE8 throws error here and will not see later tests
if ( !el.querySelectorAll(":checked").length ) {
rbuggyQSA.push(":checked");
}
// Support: Safari 8+, iOS 8+
// https://bugs.webkit.org/show_bug.cgi?id=136851
// In-page `selector#id sibling-combinator selector` fails
if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) {
rbuggyQSA.push(".#.+[+~]");
}
});
assert(function( el ) {
el.innerHTML = "<a href='' disabled='disabled'></a>" +
"<select disabled='disabled'><option/></select>";
// Support: Windows 8 Native Apps
// The type and name attributes are restricted during .innerHTML assignment
var input = document.createElement("input");
input.setAttribute( "type", "hidden" );
el.appendChild( input ).setAttribute( "name", "D" );
// Support: IE8
// Enforce case-sensitivity of name attribute
if ( el.querySelectorAll("[name=d]").length ) {
rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" );
}
// FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
// IE8 throws error here and will not see later tests
if ( el.querySelectorAll(":enabled").length !== 2 ) {
rbuggyQSA.push( ":enabled", ":disabled" );
}
// Support: IE9-11+
// IE's :disabled selector does not pick up the children of disabled fieldsets
docElem.appendChild( el ).disabled = true;
if ( el.querySelectorAll(":disabled").length !== 2 ) {
rbuggyQSA.push( ":enabled", ":disabled" );
}
// Opera 10-11 does not throw on post-comma invalid pseudos
el.querySelectorAll("*,:x");
rbuggyQSA.push(",.*:");
});
}
if ( (support.matchesSelector = rnative.test( (matches = docElem.matches ||
docElem.webkitMatchesSelector ||
docElem.mozMatchesSelector ||
docElem.oMatchesSelector ||
docElem.msMatchesSelector) )) ) {
assert(function( el ) {
// Check to see if it's possible to do matchesSelector
// on a disconnected node (IE 9)
support.disconnectedMatch = matches.call( el, "*" );
// This should fail with an exception
// Gecko does not error, returns false instead
matches.call( el, "[s!='']:x" );
rbuggyMatches.push( "!=", pseudos );
});
}
rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );
rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );
/* Contains
---------------------------------------------------------------------- */
hasCompare = rnative.test( docElem.compareDocumentPosition );
// Element contains another
// Purposefully self-exclusive
// As in, an element does not contain itself
contains = hasCompare || rnative.test( docElem.contains ) ?
function( a, b ) {
var adown = a.nodeType === 9 ? a.documentElement : a,
bup = b && b.parentNode;
return a === bup || !!( bup && bup.nodeType === 1 && (
adown.contains ?
adown.contains( bup ) :
a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
));
} :
function( a, b ) {
if ( b ) {
while ( (b = b.parentNode) ) {
if ( b === a ) {
return true;
}
}
}
return false;
};
/* Sorting
---------------------------------------------------------------------- */
// Document order sorting
sortOrder = hasCompare ?
function( a, b ) {
// Flag for duplicate removal
if ( a === b ) {
hasDuplicate = true;
return 0;
}
// Sort on method existence if only one input has compareDocumentPosition
var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
if ( compare ) {
return compare;
}
// Calculate position if both inputs belong to the same document
compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ?
a.compareDocumentPosition( b ) :
// Otherwise we know they are disconnected
1;
// Disconnected nodes
if ( compare & 1 ||
(!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {
// Choose the first element that is related to our preferred document
if ( a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) {
return -1;
}
if ( b === document || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) {
return 1;
}
// Maintain original order
return sortInput ?
( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
0;
}
return compare & 4 ? -1 : 1;
} :
function( a, b ) {
// Exit early if the nodes are identical
if ( a === b ) {
hasDuplicate = true;
return 0;
}
var cur,
i = 0,
aup = a.parentNode,
bup = b.parentNode,
ap = [ a ],
bp = [ b ];
// Parentless nodes are either documents or disconnected
if ( !aup || !bup ) {
return a === document ? -1 :
b === document ? 1 :
aup ? -1 :
bup ? 1 :
sortInput ?
( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
0;
// If the nodes are siblings, we can do a quick check
} else if ( aup === bup ) {
return siblingCheck( a, b );
}
// Otherwise we need full lists of their ancestors for comparison
cur = a;
while ( (cur = cur.parentNode) ) {
ap.unshift( cur );
}
cur = b;
while ( (cur = cur.parentNode) ) {
bp.unshift( cur );
}
// Walk down the tree looking for a discrepancy
while ( ap[i] === bp[i] ) {
i++;
}
return i ?
// Do a sibling check if the nodes have a common ancestor
siblingCheck( ap[i], bp[i] ) :
// Otherwise nodes in our document sort first
ap[i] === preferredDoc ? -1 :
bp[i] === preferredDoc ? 1 :
0;
};
return document;
};
Sizzle.matches = function( expr, elements ) {
return Sizzle( expr, null, null, elements );
};
Sizzle.matchesSelector = function( elem, expr ) {
// Set document vars if needed
if ( ( elem.ownerDocument || elem ) !== document ) {
setDocument( elem );
}
// Make sure that attribute selectors are quoted
expr = expr.replace( rattributeQuotes, "='$1']" );
if ( support.matchesSelector && documentIsHTML &&
!compilerCache[ expr + " " ] &&
( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
( !rbuggyQSA || !rbuggyQSA.test( expr ) ) ) {
try {
var ret = matches.call( elem, expr );
// IE 9's matchesSelector returns false on disconnected nodes
if ( ret || support.disconnectedMatch ||
// As well, disconnected nodes are said to be in a document
// fragment in IE 9
elem.document && elem.document.nodeType !== 11 ) {
return ret;
}
} catch (e) {}
}
return Sizzle( expr, document, null, [ elem ] ).length > 0;
};
Sizzle.contains = function( context, elem ) {
// Set document vars if needed
if ( ( context.ownerDocument || context ) !== document ) {
setDocument( context );
}
return contains( context, elem );
};
Sizzle.attr = function( elem, name ) {
// Set document vars if needed
if ( ( elem.ownerDocument || elem ) !== document ) {
setDocument( elem );
}
var fn = Expr.attrHandle[ name.toLowerCase() ],
// Don't get fooled by Object.prototype properties (jQuery #13807)
val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
fn( elem, name, !documentIsHTML ) :
undefined;
return val !== undefined ?
val :
support.attributes || !documentIsHTML ?
elem.getAttribute( name ) :
(val = elem.getAttributeNode(name)) && val.specified ?
val.value :
null;
};
Sizzle.escape = function( sel ) {
return (sel + "").replace( rcssescape, fcssescape );
};
Sizzle.error = function( msg ) {
throw new Error( "Syntax error, unrecognized expression: " + msg );
};
/**
* Document sorting and removing duplicates
* @param {ArrayLike} results
*/
Sizzle.uniqueSort = function( results ) {
var elem,
duplicates = [],
j = 0,
i = 0;
// Unless we *know* we can detect duplicates, assume their presence
hasDuplicate = !support.detectDuplicates;
sortInput = !support.sortStable && results.slice( 0 );
results.sort( sortOrder );
if ( hasDuplicate ) {
while ( (elem = results[i++]) ) {
if ( elem === results[ i ] ) {
j = duplicates.push( i );
}
}
while ( j-- ) {
results.splice( duplicates[ j ], 1 );
}
}
// Clear input after sorting to release objects
// See https://github.com/jquery/sizzle/pull/225
sortInput = null;
return results;
};
/**
* Utility function for retrieving the text value of an array of DOM nodes
* @param {Array|Element} elem
*/
getText = Sizzle.getText = function( elem ) {
var node,
ret = "",
i = 0,
nodeType = elem.nodeType;
if ( !nodeType ) {
// If no nodeType, this is expected to be an array
while ( (node = elem[i++]) ) {
// Do not traverse comment nodes
ret += getText( node );
}
} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
// Use textContent for elements
// innerText usage removed for consistency of new lines (jQuery #11153)
if ( typeof elem.textContent === "string" ) {
return elem.textContent;
} else {
// Traverse its children
for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
ret += getText( elem );
}
}
} else if ( nodeType === 3 || nodeType === 4 ) {
return elem.nodeValue;
}
// Do not include comment or processing instruction nodes
return ret;
};
Expr = Sizzle.selectors = {
// Can be adjusted by the user
cacheLength: 50,
createPseudo: markFunction,
match: matchExpr,
attrHandle: {},
find: {},
relative: {
">": { dir: "parentNode", first: true },
" ": { dir: "parentNode" },
"+": { dir: "previousSibling", first: true },
"~": { dir: "previousSibling" }
},
preFilter: {
"ATTR": function( match ) {
match[1] = match[1].replace( runescape, funescape );
// Move the given value to match[3] whether quoted or unquoted
match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape );
if ( match[2] === "~=" ) {
match[3] = " " + match[3] + " ";
}
return match.slice( 0, 4 );
},
"CHILD": function( match ) {
/* matches from matchExpr["CHILD"]
1 type (only|nth|...)
2 what (child|of-type)
3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
4 xn-component of xn+y argument ([+-]?\d*n|)
5 sign of xn-component
6 x of xn-component
7 sign of y-component
8 y of y-component
*/
match[1] = match[1].toLowerCase();
if ( match[1].slice( 0, 3 ) === "nth" ) {
// nth-* requires argument
if ( !match[3] ) {
Sizzle.error( match[0] );
}
// numeric x and y parameters for Expr.filter.CHILD
// remember that false/true cast respectively to 0/1
match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );
// other types prohibit arguments
} else if ( match[3] ) {
Sizzle.error( match[0] );
}
return match;
},
"PSEUDO": function( match ) {
var excess,
unquoted = !match[6] && match[2];
if ( matchExpr["CHILD"].test( match[0] ) ) {
return null;
}
// Accept quoted arguments as-is
if ( match[3] ) {
match[2] = match[4] || match[5] || "";
// Strip excess characters from unquoted arguments
} else if ( unquoted && rpseudo.test( unquoted ) &&
// Get excess from tokenize (recursively)
(excess = tokenize( unquoted, true )) &&
// advance to the next closing parenthesis
(excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {
// excess is a negative index
match[0] = match[0].slice( 0, excess );
match[2] = unquoted.slice( 0, excess );
}
// Return only captures needed by the pseudo filter method (type and argument)
return match.slice( 0, 3 );
}
},
filter: {
"TAG": function( nodeNameSelector ) {
var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
return nodeNameSelector === "*" ?
function() { return true; } :
function( elem ) {
return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
};
},
"CLASS": function( className ) {
var pattern = classCache[ className + " " ];
return pattern ||
(pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
classCache( className, function( elem ) {
return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" );
});
},
"ATTR": function( name, operator, check ) {
return function( elem ) {
var result = Sizzle.attr( elem, name );
if ( result == null ) {
return operator === "!=";
}
if ( !operator ) {
return true;
}
result += "";
return operator === "=" ? result === check :
operator === "!=" ? result !== check :
operator === "^=" ? check && result.indexOf( check ) === 0 :
operator === "*=" ? check && result.indexOf( check ) > -1 :
operator === "$=" ? check && result.slice( -check.length ) === check :
operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
false;
};
},
"CHILD": function( type, what, argument, first, last ) {
var simple = type.slice( 0, 3 ) !== "nth",
forward = type.slice( -4 ) !== "last",
ofType = what === "of-type";
return first === 1 && last === 0 ?
// Shortcut for :nth-*(n)
function( elem ) {
return !!elem.parentNode;
} :
function( elem, context, xml ) {
var cache, uniqueCache, outerCache, node, nodeIndex, start,
dir = simple !== forward ? "nextSibling" : "previousSibling",
parent = elem.parentNode,
name = ofType && elem.nodeName.toLowerCase(),
useCache = !xml && !ofType,
diff = false;
if ( parent ) {
// :(first|last|only)-(child|of-type)
if ( simple ) {
while ( dir ) {
node = elem;
while ( (node = node[ dir ]) ) {
if ( ofType ?
node.nodeName.toLowerCase() === name :
node.nodeType === 1 ) {
return false;
}
}
// Reverse direction for :only-* (if we haven't yet done so)
start = dir = type === "only" && !start && "nextSibling";
}
return true;
}
start = [ forward ? parent.firstChild : parent.lastChild ];
// non-xml :nth-child(...) stores cache data on `parent`
if ( forward && useCache ) {
// Seek `elem` from a previously-cached index
// ...in a gzip-friendly way
node = parent;
outerCache = node[ expando ] || (node[ expando ] = {});
// Support: IE <9 only
// Defend against cloned attroperties (jQuery gh-1709)
uniqueCache = outerCache[ node.uniqueID ] ||
(outerCache[ node.uniqueID ] = {});
cache = uniqueCache[ type ] || [];
nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
diff = nodeIndex && cache[ 2 ];
node = nodeIndex && parent.childNodes[ nodeIndex ];
while ( (node = ++nodeIndex && node && node[ dir ] ||
// Fallback to seeking `elem` from the start
(diff = nodeIndex = 0) || start.pop()) ) {
// When found, cache indexes on `parent` and break
if ( node.nodeType === 1 && ++diff && node === elem ) {
uniqueCache[ type ] = [ dirruns, nodeIndex, diff ];
break;
}
}
} else {
// Use previously-cached element index if available
if ( useCache ) {
// ...in a gzip-friendly way
node = elem;
outerCache = node[ expando ] || (node[ expando ] = {});
// Support: IE <9 only
// Defend against cloned attroperties (jQuery gh-1709)
uniqueCache = outerCache[ node.uniqueID ] ||
(outerCache[ node.uniqueID ] = {});
cache = uniqueCache[ type ] || [];
nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
diff = nodeIndex;
}
// xml :nth-child(...)
// or :nth-last-child(...) or :nth(-last)?-of-type(...)
if ( diff === false ) {
// Use the same loop as above to seek `elem` from the start
while ( (node = ++nodeIndex && node && node[ dir ] ||
(diff = nodeIndex = 0) || start.pop()) ) {
if ( ( ofType ?
node.nodeName.toLowerCase() === name :
node.nodeType === 1 ) &&
++diff ) {
// Cache the index of each encountered element
if ( useCache ) {
outerCache = node[ expando ] || (node[ expando ] = {});
// Support: IE <9 only
// Defend against cloned attroperties (jQuery gh-1709)
uniqueCache = outerCache[ node.uniqueID ] ||
(outerCache[ node.uniqueID ] = {});
uniqueCache[ type ] = [ dirruns, diff ];
}
if ( node === elem ) {
break;
}
}
}
}
}
// Incorporate the offset, then check against cycle size
diff -= last;
return diff === first || ( diff % first === 0 && diff / first >= 0 );
}
};
},
"PSEUDO": function( pseudo, argument ) {
// pseudo-class names are case-insensitive
// http://www.w3.org/TR/selectors/#pseudo-classes
// Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
// Remember that setFilters inherits from pseudos
var args,
fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
Sizzle.error( "unsupported pseudo: " + pseudo );
// The user may use createPseudo to indicate that
// arguments are needed to create the filter function
// just as Sizzle does
if ( fn[ expando ] ) {
return fn( argument );
}
// But maintain support for old signatures
if ( fn.length > 1 ) {
args = [ pseudo, pseudo, "", argument ];
return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
markFunction(function( seed, matches ) {
var idx,
matched = fn( seed, argument ),
i = matched.length;
while ( i-- ) {
idx = indexOf( seed, matched[i] );
seed[ idx ] = !( matches[ idx ] = matched[i] );
}
}) :
function( elem ) {
return fn( elem, 0, args );
};
}
return fn;
}
},
pseudos: {
// Potentially complex pseudos
"not": markFunction(function( selector ) {
// Trim the selector passed to compile
// to avoid treating leading and trailing
// spaces as combinators
var input = [],
results = [],
matcher = compile( selector.replace( rtrim, "$1" ) );
return matcher[ expando ] ?
markFunction(function( seed, matches, context, xml ) {
var elem,
unmatched = matcher( seed, null, xml, [] ),
i = seed.length;
// Match elements unmatched by `matcher`
while ( i-- ) {
if ( (elem = unmatched[i]) ) {
seed[i] = !(matches[i] = elem);
}
}
}) :
function( elem, context, xml ) {
input[0] = elem;
matcher( input, null, xml, results );
// Don't keep the element (issue #299)
input[0] = null;
return !results.pop();
};
}),
"has": markFunction(function( selector ) {
return function( elem ) {
return Sizzle( selector, elem ).length > 0;
};
}),
"contains": markFunction(function( text ) {
text = text.replace( runescape, funescape );
return function( elem ) {
return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;
};
}),
// "Whether an element is represented by a :lang() selector
// is based solely on the element's language value
// being equal to the identifier C,
// or beginning with the identifier C immediately followed by "-".
// The matching of C against the element's language value is performed case-insensitively.
// The identifier C does not have to be a valid language name."
// http://www.w3.org/TR/selectors/#lang-pseudo
"lang": markFunction( function( lang ) {
// lang value must be a valid identifier
if ( !ridentifier.test(lang || "") ) {
Sizzle.error( "unsupported lang: " + lang );
}
lang = lang.replace( runescape, funescape ).toLowerCase();
return function( elem ) {
var elemLang;
do {
if ( (elemLang = documentIsHTML ?
elem.lang :
elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) {
elemLang = elemLang.toLowerCase();
return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
}
} while ( (elem = elem.parentNode) && elem.nodeType === 1 );
return false;
};
}),
// Miscellaneous
"target": function( elem ) {
var hash = window.location && window.location.hash;
return hash && hash.slice( 1 ) === elem.id;
},
"root": function( elem ) {
return elem === docElem;
},
"focus": function( elem ) {
return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
},
// Boolean properties
"enabled": createDisabledPseudo( false ),
"disabled": createDisabledPseudo( true ),
"checked": function( elem ) {
// In CSS3, :checked should return both checked and selected elements
// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
var nodeName = elem.nodeName.toLowerCase();
return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
},
"selected": function( elem ) {
// Accessing this property makes selected-by-default
// options in Safari work properly
if ( elem.parentNode ) {
elem.parentNode.selectedIndex;
}
return elem.selected === true;
},
// Contents
"empty": function( elem ) {
// http://www.w3.org/TR/selectors/#empty-pseudo
// :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
// but not by others (comment: 8; processing instruction: 7; etc.)
// nodeType < 6 works because attributes (2) do not appear as children
for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
if ( elem.nodeType < 6 ) {
return false;
}
}
return true;
},
"parent": function( elem ) {
return !Expr.pseudos["empty"]( elem );
},
// Element/input types
"header": function( elem ) {
return rheader.test( elem.nodeName );
},
"input": function( elem ) {
return rinputs.test( elem.nodeName );
},
"button": function( elem ) {
var name = elem.nodeName.toLowerCase();
return name === "input" && elem.type === "button" || name === "button";
},
"text": function( elem ) {
var attr;
return elem.nodeName.toLowerCase() === "input" &&
elem.type === "text" &&
// Support: IE<8
// New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" );
},
// Position-in-collection
"first": createPositionalPseudo(function() {
return [ 0 ];
}),
"last": createPositionalPseudo(function( matchIndexes, length ) {
return [ length - 1 ];
}),
"eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
return [ argument < 0 ? argument + length : argument ];
}),
"even": createPositionalPseudo(function( matchIndexes, length ) {
var i = 0;
for ( ; i < length; i += 2 ) {
matchIndexes.push( i );
}
return matchIndexes;
}),
"odd": createPositionalPseudo(function( matchIndexes, length ) {
var i = 1;
for ( ; i < length; i += 2 ) {
matchIndexes.push( i );
}
return matchIndexes;
}),
"lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
var i = argument < 0 ? argument + length : argument;
for ( ; --i >= 0; ) {
matchIndexes.push( i );
}
return matchIndexes;
}),
"gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
var i = argument < 0 ? argument + length : argument;
for ( ; ++i < length; ) {
matchIndexes.push( i );
}
return matchIndexes;
})
}
};
Expr.pseudos["nth"] = Expr.pseudos["eq"];
// Add button/input type pseudos
for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
Expr.pseudos[ i ] = createInputPseudo( i );
}
for ( i in { submit: true, reset: true } ) {
Expr.pseudos[ i ] = createButtonPseudo( i );
}
// Easy API for creating new setFilters
function setFilters() {}
setFilters.prototype = Expr.filters = Expr.pseudos;
Expr.setFilters = new setFilters();
tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
var matched, match, tokens, type,
soFar, groups, preFilters,
cached = tokenCache[ selector + " " ];
if ( cached ) {
return parseOnly ? 0 : cached.slice( 0 );
}
soFar = selector;
groups = [];
preFilters = Expr.preFilter;
while ( soFar ) {
// Comma and first run
if ( !matched || (match = rcomma.exec( soFar )) ) {
if ( match ) {
// Don't consume trailing commas as valid
soFar = soFar.slice( match[0].length ) || soFar;
}
groups.push( (tokens = []) );
}
matched = false;
// Combinators
if ( (match = rcombinators.exec( soFar )) ) {
matched = match.shift();
tokens.push({
value: matched,
// Cast descendant combinators to space
type: match[0].replace( rtrim, " " )
});
soFar = soFar.slice( matched.length );
}
// Filters
for ( type in Expr.filter ) {
if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
(match = preFilters[ type ]( match ))) ) {
matched = match.shift();
tokens.push({
value: matched,
type: type,
matches: match
});
soFar = soFar.slice( matched.length );
}
}
if ( !matched ) {
break;
}
}
// Return the length of the invalid excess
// if we're just parsing
// Otherwise, throw an error or return tokens
return parseOnly ?
soFar.length :
soFar ?
Sizzle.error( selector ) :
// Cache the tokens
tokenCache( selector, groups ).slice( 0 );
};
function toSelector( tokens ) {
var i = 0,
len = tokens.length,
selector = "";
for ( ; i < len; i++ ) {
selector += tokens[i].value;
}
return selector;
}
function addCombinator( matcher, combinator, base ) {
var dir = combinator.dir,
skip = combinator.next,
key = skip || dir,
checkNonElements = base && key === "parentNode",
doneName = done++;
return combinator.first ?
// Check against closest ancestor/preceding element
function( elem, context, xml ) {
while ( (elem = elem[ dir ]) ) {
if ( elem.nodeType === 1 || checkNonElements ) {
return matcher( elem, context, xml );
}
}
} :
// Check against all ancestor/preceding elements
function( elem, context, xml ) {
var oldCache, uniqueCache, outerCache,
newCache = [ dirruns, doneName ];
// We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching
if ( xml ) {
while ( (elem = elem[ dir ]) ) {
if ( elem.nodeType === 1 || checkNonElements ) {
if ( matcher( elem, context, xml ) ) {
return true;
}
}
}
} else {
while ( (elem = elem[ dir ]) ) {
if ( elem.nodeType === 1 || checkNonElements ) {
outerCache = elem[ expando ] || (elem[ expando ] = {});
// Support: IE <9 only
// Defend against cloned attroperties (jQuery gh-1709)
uniqueCache = outerCache[ elem.uniqueID ] || (outerCache[ elem.uniqueID ] = {});
if ( skip && skip === elem.nodeName.toLowerCase() ) {
elem = elem[ dir ] || elem;
} else if ( (oldCache = uniqueCache[ key ]) &&
oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {
// Assign to newCache so results back-propagate to previous elements
return (newCache[ 2 ] = oldCache[ 2 ]);
} else {
// Reuse newcache so results back-propagate to previous elements
uniqueCache[ key ] = newCache;
// A match means we're done; a fail means we have to keep checking
if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) {
return true;
}
}
}
}
}
};
}
function elementMatcher( matchers ) {
return matchers.length > 1 ?
function( elem, context, xml ) {
var i = matchers.length;
while ( i-- ) {
if ( !matchers[i]( elem, context, xml ) ) {
return false;
}
}
return true;
} :
matchers[0];
}
function multipleContexts( selector, contexts, results ) {
var i = 0,
len = contexts.length;
for ( ; i < len; i++ ) {
Sizzle( selector, contexts[i], results );
}
return results;
}
function condense( unmatched, map, filter, context, xml ) {
var elem,
newUnmatched = [],
i = 0,
len = unmatched.length,
mapped = map != null;
for ( ; i < len; i++ ) {
if ( (elem = unmatched[i]) ) {
if ( !filter || filter( elem, context, xml ) ) {
newUnmatched.push( elem );
if ( mapped ) {
map.push( i );
}
}
}
}
return newUnmatched;
}
function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
if ( postFilter && !postFilter[ expando ] ) {
postFilter = setMatcher( postFilter );
}
if ( postFinder && !postFinder[ expando ] ) {
postFinder = setMatcher( postFinder, postSelector );
}
return markFunction(function( seed, results, context, xml ) {
var temp, i, elem,
preMap = [],
postMap = [],
preexisting = results.length,
// Get initial elements from seed or context
elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),
// Prefilter to get matcher input, preserving a map for seed-results synchronization
matcherIn = preFilter && ( seed || !selector ) ?
condense( elems, preMap, preFilter, context, xml ) :
elems,
matcherOut = matcher ?
// If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
postFinder || ( seed ? preFilter : preexisting || postFilter ) ?
// ...intermediate processing is necessary
[] :
// ...otherwise use results directly
results :
matcherIn;
// Find primary matches
if ( matcher ) {
matcher( matcherIn, matcherOut, context, xml );
}
// Apply postFilter
if ( postFilter ) {
temp = condense( matcherOut, postMap );
postFilter( temp, [], context, xml );
// Un-match failing elements by moving them back to matcherIn
i = temp.length;
while ( i-- ) {
if ( (elem = temp[i]) ) {
matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
}
}
}
if ( seed ) {
if ( postFinder || preFilter ) {
if ( postFinder ) {
// Get the final matcherOut by condensing this intermediate into postFinder contexts
temp = [];
i = matcherOut.length;
while ( i-- ) {
if ( (elem = matcherOut[i]) ) {
// Restore matcherIn since elem is not yet a final match
temp.push( (matcherIn[i] = elem) );
}
}
postFinder( null, (matcherOut = []), temp, xml );
}
// Move matched elements from seed to results to keep them synchronized
i = matcherOut.length;
while ( i-- ) {
if ( (elem = matcherOut[i]) &&
(temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) {
seed[temp] = !(results[temp] = elem);
}
}
}
// Add elements to results, through postFinder if defined
} else {
matcherOut = condense(
matcherOut === results ?
matcherOut.splice( preexisting, matcherOut.length ) :
matcherOut
);
if ( postFinder ) {
postFinder( null, results, matcherOut, xml );
} else {
push.apply( results, matcherOut );
}
}
});
}
function matcherFromTokens( tokens ) {
var checkContext, matcher, j,
len = tokens.length,
leadingRelative = Expr.relative[ tokens[0].type ],
implicitRelative = leadingRelative || Expr.relative[" "],
i = leadingRelative ? 1 : 0,
// The foundational matcher ensures that elements are reachable from top-level context(s)
matchContext = addCombinator( function( elem ) {
return elem === checkContext;
}, implicitRelative, true ),
matchAnyContext = addCombinator( function( elem ) {
return indexOf( checkContext, elem ) > -1;
}, implicitRelative, true ),
matchers = [ function( elem, context, xml ) {
var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
(checkContext = context).nodeType ?
matchContext( elem, context, xml ) :
matchAnyContext( elem, context, xml ) );
// Avoid hanging onto element (issue #299)
checkContext = null;
return ret;
} ];
for ( ; i < len; i++ ) {
if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
} else {
matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );
// Return special upon seeing a positional matcher
if ( matcher[ expando ] ) {
// Find the next relative operator (if any) for proper handling
j = ++i;
for ( ; j < len; j++ ) {
if ( Expr.relative[ tokens[j].type ] ) {
break;
}
}
return setMatcher(
i > 1 && elementMatcher( matchers ),
i > 1 && toSelector(
// If the preceding token was a descendant combinator, insert an implicit any-element `*`
tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" })
).replace( rtrim, "$1" ),
matcher,
i < j && matcherFromTokens( tokens.slice( i, j ) ),
j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
j < len && toSelector( tokens )
);
}
matchers.push( matcher );
}
}
return elementMatcher( matchers );
}
function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
var bySet = setMatchers.length > 0,
byElement = elementMatchers.length > 0,
superMatcher = function( seed, context, xml, results, outermost ) {
var elem, j, matcher,
matchedCount = 0,
i = "0",
unmatched = seed && [],
setMatched = [],
contextBackup = outermostContext,
// We must always have either seed elements or outermost context
elems = seed || byElement && Expr.find["TAG"]( "*", outermost ),
// Use integer dirruns iff this is the outermost matcher
dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1),
len = elems.length;
if ( outermost ) {
outermostContext = context === document || context || outermost;
}
// Add elements passing elementMatchers directly to results
// Support: IE<9, Safari
// Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
for ( ; i !== len && (elem = elems[i]) != null; i++ ) {
if ( byElement && elem ) {
j = 0;
if ( !context && elem.ownerDocument !== document ) {
setDocument( elem );
xml = !documentIsHTML;
}
while ( (matcher = elementMatchers[j++]) ) {
if ( matcher( elem, context || document, xml) ) {
results.push( elem );
break;
}
}
if ( outermost ) {
dirruns = dirrunsUnique;
}
}
// Track unmatched elements for set filters
if ( bySet ) {
// They will have gone through all possible matchers
if ( (elem = !matcher && elem) ) {
matchedCount--;
}
// Lengthen the array for every element, matched or not
if ( seed ) {
unmatched.push( elem );
}
}
}
// `i` is now the count of elements visited above, and adding it to `matchedCount`
// makes the latter nonnegative.
matchedCount += i;
// Apply set filters to unmatched elements
// NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount`
// equals `i`), unless we didn't visit _any_ elements in the above loop because we have
// no element matchers and no seed.
// Incrementing an initially-string "0" `i` allows `i` to remain a string only in that
// case, which will result in a "00" `matchedCount` that differs from `i` but is also
// numerically zero.
if ( bySet && i !== matchedCount ) {
j = 0;
while ( (matcher = setMatchers[j++]) ) {
matcher( unmatched, setMatched, context, xml );
}
if ( seed ) {
// Reintegrate element matches to eliminate the need for sorting
if ( matchedCount > 0 ) {
while ( i-- ) {
if ( !(unmatched[i] || setMatched[i]) ) {
setMatched[i] = pop.call( results );
}
}
}
// Discard index placeholder values to get only actual matches
setMatched = condense( setMatched );
}
// Add matches to results
push.apply( results, setMatched );
// Seedless set matches succeeding multiple successful matchers stipulate sorting
if ( outermost && !seed && setMatched.length > 0 &&
( matchedCount + setMatchers.length ) > 1 ) {
Sizzle.uniqueSort( results );
}
}
// Override manipulation of globals by nested matchers
if ( outermost ) {
dirruns = dirrunsUnique;
outermostContext = contextBackup;
}
return unmatched;
};
return bySet ?
markFunction( superMatcher ) :
superMatcher;
}
compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
var i,
setMatchers = [],
elementMatchers = [],
cached = compilerCache[ selector + " " ];
if ( !cached ) {
// Generate a function of recursive functions that can be used to check each element
if ( !match ) {
match = tokenize( selector );
}
i = match.length;
while ( i-- ) {
cached = matcherFromTokens( match[i] );
if ( cached[ expando ] ) {
setMatchers.push( cached );
} else {
elementMatchers.push( cached );
}
}
// Cache the compiled function
cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );
// Save selector and tokenization
cached.selector = selector;
}
return cached;
};
/**
* A low-level selection function that works with Sizzle's compiled
* selector functions
* @param {String|Function} selector A selector or a pre-compiled
* selector function built with Sizzle.compile
* @param {Element} context
* @param {Array} [results]
* @param {Array} [seed] A set of elements to match against
*/
select = Sizzle.select = function( selector, context, results, seed ) {
var i, tokens, token, type, find,
compiled = typeof selector === "function" && selector,
match = !seed && tokenize( (selector = compiled.selector || selector) );
results = results || [];
// Try to minimize operations if there is only one selector in the list and no seed
// (the latter of which guarantees us context)
if ( match.length === 1 ) {
// Reduce context if the leading compound selector is an ID
tokens = match[0] = match[0].slice( 0 );
if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
support.getById && context.nodeType === 9 && documentIsHTML &&
Expr.relative[ tokens[1].type ] ) {
context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];
if ( !context ) {
return results;
// Precompiled matchers will still verify ancestry, so step up a level
} else if ( compiled ) {
context = context.parentNode;
}
selector = selector.slice( tokens.shift().value.length );
}
// Fetch a seed set for right-to-left matching
i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;
while ( i-- ) {
token = tokens[i];
// Abort if we hit a combinator
if ( Expr.relative[ (type = token.type) ] ) {
break;
}
if ( (find = Expr.find[ type ]) ) {
// Search, expanding context for leading sibling combinators
if ( (seed = find(
token.matches[0].replace( runescape, funescape ),
rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context
)) ) {
// If seed is empty or no tokens remain, we can return early
tokens.splice( i, 1 );
selector = seed.length && toSelector( tokens );
if ( !selector ) {
push.apply( results, seed );
return results;
}
break;
}
}
}
}
// Compile and execute a filtering function if one is not provided
// Provide `match` to avoid retokenization if we modified the selector above
( compiled || compile( selector, match ) )(
seed,
context,
!documentIsHTML,
results,
!context || rsibling.test( selector ) && testContext( context.parentNode ) || context
);
return results;
};
// One-time assignments
// Sort stability
support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;
// Support: Chrome 14-35+
// Always assume duplicates if they aren't passed to the comparison function
support.detectDuplicates = !!hasDuplicate;
// Initialize against the default document
setDocument();
// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
// Detached nodes confoundingly follow *each other*
support.sortDetached = assert(function( el ) {
// Should return 1, but returns 4 (following)
return el.compareDocumentPosition( document.createElement("fieldset") ) & 1;
});
// Support: IE<8
// Prevent attribute/property "interpolation"
// https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
if ( !assert(function( el ) {
el.innerHTML = "<a href='#'></a>";
return el.firstChild.getAttribute("href") === "#" ;
}) ) {
addHandle( "type|href|height|width", function( elem, name, isXML ) {
if ( !isXML ) {
return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
}
});
}
// Support: IE<9
// Use defaultValue in place of getAttribute("value")
if ( !support.attributes || !assert(function( el ) {
el.innerHTML = "<input/>";
el.firstChild.setAttribute( "value", "" );
return el.firstChild.getAttribute( "value" ) === "";
}) ) {
addHandle( "value", function( elem, name, isXML ) {
if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
return elem.defaultValue;
}
});
}
// Support: IE<9
// Use getAttributeNode to fetch booleans when getAttribute lies
if ( !assert(function( el ) {
return el.getAttribute("disabled") == null;
}) ) {
addHandle( booleans, function( elem, name, isXML ) {
var val;
if ( !isXML ) {
return elem[ name ] === true ? name.toLowerCase() :
(val = elem.getAttributeNode( name )) && val.specified ?
val.value :
null;
}
});
}
return Sizzle;
})( window );
jQuery.find = Sizzle;
jQuery.expr = Sizzle.selectors;
// Deprecated
jQuery.expr[ ":" ] = jQuery.expr.pseudos;
jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort;
jQuery.text = Sizzle.getText;
jQuery.isXMLDoc = Sizzle.isXML;
jQuery.contains = Sizzle.contains;
jQuery.escapeSelector = Sizzle.escape;
var dir = function( elem, dir, until ) {
var matched = [],
truncate = until !== undefined;
while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) {
if ( elem.nodeType === 1 ) {
if ( truncate && jQuery( elem ).is( until ) ) {
break;
}
matched.push( elem );
}
}
return matched;
};
var siblings = function( n, elem ) {
var matched = [];
for ( ; n; n = n.nextSibling ) {
if ( n.nodeType === 1 && n !== elem ) {
matched.push( n );
}
}
return matched;
};
var rneedsContext = jQuery.expr.match.needsContext;
var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i );
var risSimple = /^.[^:#\[\.,]*$/;
// Implement the identical functionality for filter and not
function winnow( elements, qualifier, not ) {
if ( jQuery.isFunction( qualifier ) ) {
return jQuery.grep( elements, function( elem, i ) {
return !!qualifier.call( elem, i, elem ) !== not;
} );
}
if ( qualifier.nodeType ) {
return jQuery.grep( elements, function( elem ) {
return ( elem === qualifier ) !== not;
} );
}
if ( typeof qualifier === "string" ) {
if ( risSimple.test( qualifier ) ) {
return jQuery.filter( qualifier, elements, not );
}
qualifier = jQuery.filter( qualifier, elements );
}
return jQuery.grep( elements, function( elem ) {
return ( indexOf.call( qualifier, elem ) > -1 ) !== not && elem.nodeType === 1;
} );
}
jQuery.filter = function( expr, elems, not ) {
var elem = elems[ 0 ];
if ( not ) {
expr = ":not(" + expr + ")";
}
return elems.length === 1 && elem.nodeType === 1 ?
jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [] :
jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
return elem.nodeType === 1;
} ) );
};
jQuery.fn.extend( {
find: function( selector ) {
var i, ret,
len = this.length,
self = this;
if ( typeof selector !== "string" ) {
return this.pushStack( jQuery( selector ).filter( function() {
for ( i = 0; i < len; i++ ) {
if ( jQuery.contains( self[ i ], this ) ) {
return true;
}
}
} ) );
}
ret = this.pushStack( [] );
for ( i = 0; i < len; i++ ) {
jQuery.find( selector, self[ i ], ret );
}
return len > 1 ? jQuery.uniqueSort( ret ) : ret;
},
filter: function( selector ) {
return this.pushStack( winnow( this, selector || [], false ) );
},
not: function( selector ) {
return this.pushStack( winnow( this, selector || [], true ) );
},
is: function( selector ) {
return !!winnow(
this,
// If this is a positional/relative selector, check membership in the returned set
// so $("p:first").is("p:last") won't return true for a doc with two "p".
typeof selector === "string" && rneedsContext.test( selector ) ?
jQuery( selector ) :
selector || [],
false
).length;
}
} );
// Initialize a jQuery object
// A central reference to the root jQuery(document)
var rootjQuery,
// A simple way to check for HTML strings
// Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
// Strict HTML recognition (#11290: must start with <)
// Shortcut simple #id case for speed
rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/,
init = jQuery.fn.init = function( selector, context, root ) {
var match, elem;
// HANDLE: $(""), $(null), $(undefined), $(false)
if ( !selector ) {
return this;
}
// Method init() accepts an alternate rootjQuery
// so migrate can support jQuery.sub (gh-2101)
root = root || rootjQuery;
// Handle HTML strings
if ( typeof selector === "string" ) {
if ( selector[ 0 ] === "<" &&
selector[ selector.length - 1 ] === ">" &&
selector.length >= 3 ) {
// Assume that strings that start and end with <> are HTML and skip the regex check
match = [ null, selector, null ];
} else {
match = rquickExpr.exec( selector );
}
// Match html or make sure no context is specified for #id
if ( match && ( match[ 1 ] || !context ) ) {
// HANDLE: $(html) -> $(array)
if ( match[ 1 ] ) {
context = context instanceof jQuery ? context[ 0 ] : context;
// Option to run scripts is true for back-compat
// Intentionally let the error be thrown if parseHTML is not present
jQuery.merge( this, jQuery.parseHTML(
match[ 1 ],
context && context.nodeType ? context.ownerDocument || context : document,
true
) );
// HANDLE: $(html, props)
if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) {
for ( match in context ) {
// Properties of context are called as methods if possible
if ( jQuery.isFunction( this[ match ] ) ) {
this[ match ]( context[ match ] );
// ...and otherwise set as attributes
} else {
this.attr( match, context[ match ] );
}
}
}
return this;
// HANDLE: $(#id)
} else {
elem = document.getElementById( match[ 2 ] );
if ( elem ) {
// Inject the element directly into the jQuery object
this[ 0 ] = elem;
this.length = 1;
}
return this;
}
// HANDLE: $(expr, $(...))
} else if ( !context || context.jquery ) {
return ( context || root ).find( selector );
// HANDLE: $(expr, context)
// (which is just equivalent to: $(context).find(expr)
} else {
return this.constructor( context ).find( selector );
}
// HANDLE: $(DOMElement)
} else if ( selector.nodeType ) {
this[ 0 ] = selector;
this.length = 1;
return this;
// HANDLE: $(function)
// Shortcut for document ready
} else if ( jQuery.isFunction( selector ) ) {
return root.ready !== undefined ?
root.ready( selector ) :
// Execute immediately if ready is not present
selector( jQuery );
}
return jQuery.makeArray( selector, this );
};
// Give the init function the jQuery prototype for later instantiation
init.prototype = jQuery.fn;
// Initialize central reference
rootjQuery = jQuery( document );
var rparentsprev = /^(?:parents|prev(?:Until|All))/,
// Methods guaranteed to produce a unique set when starting from a unique set
guaranteedUnique = {
children: true,
contents: true,
next: true,
prev: true
};
jQuery.fn.extend( {
has: function( target ) {
var targets = jQuery( target, this ),
l = targets.length;
return this.filter( function() {
var i = 0;
for ( ; i < l; i++ ) {
if ( jQuery.contains( this, targets[ i ] ) ) {
return true;
}
}
} );
},
closest: function( selectors, context ) {
var cur,
i = 0,
l = this.length,
matched = [],
targets = typeof selectors !== "string" && jQuery( selectors );
// Positional selectors never match, since there's no _selection_ context
if ( !rneedsContext.test( selectors ) ) {
for ( ; i < l; i++ ) {
for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) {
// Always skip document fragments
if ( cur.nodeType < 11 && ( targets ?
targets.index( cur ) > -1 :
// Don't pass non-elements to Sizzle
cur.nodeType === 1 &&
jQuery.find.matchesSelector( cur, selectors ) ) ) {
matched.push( cur );
break;
}
}
}
}
return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched );
},
// Determine the position of an element within the set
index: function( elem ) {
// No argument, return index in parent
if ( !elem ) {
return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;
}
// Index in selector
if ( typeof elem === "string" ) {
return indexOf.call( jQuery( elem ), this[ 0 ] );
}
// Locate the position of the desired element
return indexOf.call( this,
// If it receives a jQuery object, the first element is used
elem.jquery ? elem[ 0 ] : elem
);
},
add: function( selector, context ) {
return this.pushStack(
jQuery.uniqueSort(
jQuery.merge( this.get(), jQuery( selector, context ) )
)
);
},
addBack: function( selector ) {
return this.add( selector == null ?
this.prevObject : this.prevObject.filter( selector )
);
}
} );
function sibling( cur, dir ) {
while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {}
return cur;
}
jQuery.each( {
parent: function( elem ) {
var parent = elem.parentNode;
return parent && parent.nodeType !== 11 ? parent : null;
},
parents: function( elem ) {
return dir( elem, "parentNode" );
},
parentsUntil: function( elem, i, until ) {
return dir( elem, "parentNode", until );
},
next: function( elem ) {
return sibling( elem, "nextSibling" );
},
prev: function( elem ) {
return sibling( elem, "previousSibling" );
},
nextAll: function( elem ) {
return dir( elem, "nextSibling" );
},
prevAll: function( elem ) {
return dir( elem, "previousSibling" );
},
nextUntil: function( elem, i, until ) {
return dir( elem, "nextSibling", until );
},
prevUntil: function( elem, i, until ) {
return dir( elem, "previousSibling", until );
},
siblings: function( elem ) {
return siblings( ( elem.parentNode || {} ).firstChild, elem );
},
children: function( elem ) {
return siblings( elem.firstChild );
},
contents: function( elem ) {
return elem.contentDocument || jQuery.merge( [], elem.childNodes );
}
}, function( name, fn ) {
jQuery.fn[ name ] = function( until, selector ) {
var matched = jQuery.map( this, fn, until );
if ( name.slice( -5 ) !== "Until" ) {
selector = until;
}
if ( selector && typeof selector === "string" ) {
matched = jQuery.filter( selector, matched );
}
if ( this.length > 1 ) {
// Remove duplicates
if ( !guaranteedUnique[ name ] ) {
jQuery.uniqueSort( matched );
}
// Reverse order for parents* and prev-derivatives
if ( rparentsprev.test( name ) ) {
matched.reverse();
}
}
return this.pushStack( matched );
};
} );
var rnotwhite = ( /\S+/g );
// Convert String-formatted options into Object-formatted ones
function createOptions( options ) {
var object = {};
jQuery.each( options.match( rnotwhite ) || [], function( _, flag ) {
object[ flag ] = true;
} );
return object;
}
/*
* Create a callback list using the following parameters:
*
* options: an optional list of space-separated options that will change how
* the callback list behaves or a more traditional option object
*
* By default a callback list will act like an event callback list and can be
* "fired" multiple times.
*
* Possible options:
*
* once: will ensure the callback list can only be fired once (like a Deferred)
*
* memory: will keep track of previous values and will call any callback added
* after the list has been fired right away with the latest "memorized"
* values (like a Deferred)
*
* unique: will ensure a callback can only be added once (no duplicate in the list)
*
* stopOnFalse: interrupt callings when a callback returns false
*
*/
jQuery.Callbacks = function( options ) {
// Convert options from String-formatted to Object-formatted if needed
// (we check in cache first)
options = typeof options === "string" ?
createOptions( options ) :
jQuery.extend( {}, options );
var // Flag to know if list is currently firing
firing,
// Last fire value for non-forgettable lists
memory,
// Flag to know if list was already fired
fired,
// Flag to prevent firing
locked,
// Actual callback list
list = [],
// Queue of execution data for repeatable lists
queue = [],
// Index of currently firing callback (modified by add/remove as needed)
firingIndex = -1,
// Fire callbacks
fire = function() {
// Enforce single-firing
locked = options.once;
// Execute callbacks for all pending executions,
// respecting firingIndex overrides and runtime changes
fired = firing = true;
for ( ; queue.length; firingIndex = -1 ) {
memory = queue.shift();
while ( ++firingIndex < list.length ) {
// Run callback and check for early termination
if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false &&
options.stopOnFalse ) {
// Jump to end and forget the data so .add doesn't re-fire
firingIndex = list.length;
memory = false;
}
}
}
// Forget the data if we're done with it
if ( !options.memory ) {
memory = false;
}
firing = false;
// Clean up if we're done firing for good
if ( locked ) {
// Keep an empty list if we have data for future add calls
if ( memory ) {
list = [];
// Otherwise, this object is spent
} else {
list = "";
}
}
},
// Actual Callbacks object
self = {
// Add a callback or a collection of callbacks to the list
add: function() {
if ( list ) {
// If we have memory from a past run, we should fire after adding
if ( memory && !firing ) {
firingIndex = list.length - 1;
queue.push( memory );
}
( function add( args ) {
jQuery.each( args, function( _, arg ) {
if ( jQuery.isFunction( arg ) ) {
if ( !options.unique || !self.has( arg ) ) {
list.push( arg );
}
} else if ( arg && arg.length && jQuery.type( arg ) !== "string" ) {
// Inspect recursively
add( arg );
}
} );
} )( arguments );
if ( memory && !firing ) {
fire();
}
}
return this;
},
// Remove a callback from the list
remove: function() {
jQuery.each( arguments, function( _, arg ) {
var index;
while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
list.splice( index, 1 );
// Handle firing indexes
if ( index <= firingIndex ) {
firingIndex--;
}
}
} );
return this;
},
// Check if a given callback is in the list.
// If no argument is given, return whether or not list has callbacks attached.
has: function( fn ) {
return fn ?
jQuery.inArray( fn, list ) > -1 :
list.length > 0;
},
// Remove all callbacks from the list
empty: function() {
if ( list ) {
list = [];
}
return this;
},
// Disable .fire and .add
// Abort any current/pending executions
// Clear all callbacks and values
disable: function() {
locked = queue = [];
list = memory = "";
return this;
},
disabled: function() {
return !list;
},
// Disable .fire
// Also disable .add unless we have memory (since it would have no effect)
// Abort any pending executions
lock: function() {
locked = queue = [];
if ( !memory && !firing ) {
list = memory = "";
}
return this;
},
locked: function() {
return !!locked;
},
// Call all callbacks with the given context and arguments
fireWith: function( context, args ) {
if ( !locked ) {
args = args || [];
args = [ context, args.slice ? args.slice() : args ];
queue.push( args );
if ( !firing ) {
fire();
}
}
return this;
},
// Call all the callbacks with the given arguments
fire: function() {
self.fireWith( this, arguments );
return this;
},
// To know if the callbacks have already been called at least once
fired: function() {
return !!fired;
}
};
return self;
};
function Identity( v ) {
return v;
}
function Thrower( ex ) {
throw ex;
}
function adoptValue( value, resolve, reject ) {
var method;
try {
// Check for promise aspect first to privilege synchronous behavior
if ( value && jQuery.isFunction( ( method = value.promise ) ) ) {
method.call( value ).done( resolve ).fail( reject );
// Other thenables
} else if ( value && jQuery.isFunction( ( method = value.then ) ) ) {
method.call( value, resolve, reject );
// Other non-thenables
} else {
// Support: Android 4.0 only
// Strict mode functions invoked without .call/.apply get global-object context
resolve.call( undefined, value );
}
// For Promises/A+, convert exceptions into rejections
// Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in
// Deferred#then to conditionally suppress rejection.
} catch ( value ) {
// Support: Android 4.0 only
// Strict mode functions invoked without .call/.apply get global-object context
reject.call( undefined, value );
}
}
jQuery.extend( {
Deferred: function( func ) {
var tuples = [
// action, add listener, callbacks,
// ... .then handlers, argument index, [final state]
[ "notify", "progress", jQuery.Callbacks( "memory" ),
jQuery.Callbacks( "memory" ), 2 ],
[ "resolve", "done", jQuery.Callbacks( "once memory" ),
jQuery.Callbacks( "once memory" ), 0, "resolved" ],
[ "reject", "fail", jQuery.Callbacks( "once memory" ),
jQuery.Callbacks( "once memory" ), 1, "rejected" ]
],
state = "pending",
promise = {
state: function() {
return state;
},
always: function() {
deferred.done( arguments ).fail( arguments );
return this;
},
"catch": function( fn ) {
return promise.then( null, fn );
},
// Keep pipe for back-compat
pipe: function( /* fnDone, fnFail, fnProgress */ ) {
var fns = arguments;
return jQuery.Deferred( function( newDefer ) {
jQuery.each( tuples, function( i, tuple ) {
// Map tuples (progress, done, fail) to arguments (done, fail, progress)
var fn = jQuery.isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ];
// deferred.progress(function() { bind to newDefer or newDefer.notify })
// deferred.done(function() { bind to newDefer or newDefer.resolve })
// deferred.fail(function() { bind to newDefer or newDefer.reject })
deferred[ tuple[ 1 ] ]( function() {
var returned = fn && fn.apply( this, arguments );
if ( returned && jQuery.isFunction( returned.promise ) ) {
returned.promise()
.progress( newDefer.notify )
.done( newDefer.resolve )
.fail( newDefer.reject );
} else {
newDefer[ tuple[ 0 ] + "With" ](
this,
fn ? [ returned ] : arguments
);
}
} );
} );
fns = null;
} ).promise();
},
then: function( onFulfilled, onRejected, onProgress ) {
var maxDepth = 0;
function resolve( depth, deferred, handler, special ) {
return function() {
var that = this,
args = arguments,
mightThrow = function() {
var returned, then;
// Support: Promises/A+ section 2.3.3.3.3
// https://promisesaplus.com/#point-59
// Ignore double-resolution attempts
if ( depth < maxDepth ) {
return;
}
returned = handler.apply( that, args );
// Support: Promises/A+ section 2.3.1
// https://promisesaplus.com/#point-48
if ( returned === deferred.promise() ) {
throw new TypeError( "Thenable self-resolution" );
}
// Support: Promises/A+ sections 2.3.3.1, 3.5
// https://promisesaplus.com/#point-54
// https://promisesaplus.com/#point-75
// Retrieve `then` only once
then = returned &&
// Support: Promises/A+ section 2.3.4
// https://promisesaplus.com/#point-64
// Only check objects and functions for thenability
( typeof returned === "object" ||
typeof returned === "function" ) &&
returned.then;
// Handle a returned thenable
if ( jQuery.isFunction( then ) ) {
// Special processors (notify) just wait for resolution
if ( special ) {
then.call(
returned,
resolve( maxDepth, deferred, Identity, special ),
resolve( maxDepth, deferred, Thrower, special )
);
// Normal processors (resolve) also hook into progress
} else {
// ...and disregard older resolution values
maxDepth++;
then.call(
returned,
resolve( maxDepth, deferred, Identity, special ),
resolve( maxDepth, deferred, Thrower, special ),
resolve( maxDepth, deferred, Identity,
deferred.notifyWith )
);
}
// Handle all other returned values
} else {
// Only substitute handlers pass on context
// and multiple values (non-spec behavior)
if ( handler !== Identity ) {
that = undefined;
args = [ returned ];
}
// Process the value(s)
// Default process is resolve
( special || deferred.resolveWith )( that, args );
}
},
// Only normal processors (resolve) catch and reject exceptions
process = special ?
mightThrow :
function() {
try {
mightThrow();
} catch ( e ) {
if ( jQuery.Deferred.exceptionHook ) {
jQuery.Deferred.exceptionHook( e,
process.stackTrace );
}
// Support: Promises/A+ section 2.3.3.3.4.1
// https://promisesaplus.com/#point-61
// Ignore post-resolution exceptions
if ( depth + 1 >= maxDepth ) {
// Only substitute handlers pass on context
// and multiple values (non-spec behavior)
if ( handler !== Thrower ) {
that = undefined;
args = [ e ];
}
deferred.rejectWith( that, args );
}
}
};
// Support: Promises/A+ section 2.3.3.3.1
// https://promisesaplus.com/#point-57
// Re-resolve promises immediately to dodge false rejection from
// subsequent errors
if ( depth ) {
process();
} else {
// Call an optional hook to record the stack, in case of exception
// since it's otherwise lost when execution goes async
if ( jQuery.Deferred.getStackHook ) {
process.stackTrace = jQuery.Deferred.getStackHook();
}
window.setTimeout( process );
}
};
}
return jQuery.Deferred( function( newDefer ) {
// progress_handlers.add( ... )
tuples[ 0 ][ 3 ].add(
resolve(
0,
newDefer,
jQuery.isFunction( onProgress ) ?
onProgress :
Identity,
newDefer.notifyWith
)
);
// fulfilled_handlers.add( ... )
tuples[ 1 ][ 3 ].add(
resolve(
0,
newDefer,
jQuery.isFunction( onFulfilled ) ?
onFulfilled :
Identity
)
);
// rejected_handlers.add( ... )
tuples[ 2 ][ 3 ].add(
resolve(
0,
newDefer,
jQuery.isFunction( onRejected ) ?
onRejected :
Thrower
)
);
} ).promise();
},
// Get a promise for this deferred
// If obj is provided, the promise aspect is added to the object
promise: function( obj ) {
return obj != null ? jQuery.extend( obj, promise ) : promise;
}
},
deferred = {};
// Add list-specific methods
jQuery.each( tuples, function( i, tuple ) {
var list = tuple[ 2 ],
stateString = tuple[ 5 ];
// promise.progress = list.add
// promise.done = list.add
// promise.fail = list.add
promise[ tuple[ 1 ] ] = list.add;
// Handle state
if ( stateString ) {
list.add(
function() {
// state = "resolved" (i.e., fulfilled)
// state = "rejected"
state = stateString;
},
// rejected_callbacks.disable
// fulfilled_callbacks.disable
tuples[ 3 - i ][ 2 ].disable,
// progress_callbacks.lock
tuples[ 0 ][ 2 ].lock
);
}
// progress_handlers.fire
// fulfilled_handlers.fire
// rejected_handlers.fire
list.add( tuple[ 3 ].fire );
// deferred.notify = function() { deferred.notifyWith(...) }
// deferred.resolve = function() { deferred.resolveWith(...) }
// deferred.reject = function() { deferred.rejectWith(...) }
deferred[ tuple[ 0 ] ] = function() {
deferred[ tuple[ 0 ] + "With" ]( this === deferred ? undefined : this, arguments );
return this;
};
// deferred.notifyWith = list.fireWith
// deferred.resolveWith = list.fireWith
// deferred.rejectWith = list.fireWith
deferred[ tuple[ 0 ] + "With" ] = list.fireWith;
} );
// Make the deferred a promise
promise.promise( deferred );
// Call given func if any
if ( func ) {
func.call( deferred, deferred );
}
// All done!
return deferred;
},
// Deferred helper
when: function( singleValue ) {
var
// count of uncompleted subordinates
remaining = arguments.length,
// count of unprocessed arguments
i = remaining,
// subordinate fulfillment data
resolveContexts = Array( i ),
resolveValues = slice.call( arguments ),
// the master Deferred
master = jQuery.Deferred(),
// subordinate callback factory
updateFunc = function( i ) {
return function( value ) {
resolveContexts[ i ] = this;
resolveValues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
if ( !( --remaining ) ) {
master.resolveWith( resolveContexts, resolveValues );
}
};
};
// Single- and empty arguments are adopted like Promise.resolve
if ( remaining <= 1 ) {
adoptValue( singleValue, master.done( updateFunc( i ) ).resolve, master.reject );
// Use .then() to unwrap secondary thenables (cf. gh-3000)
if ( master.state() === "pending" ||
jQuery.isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) {
return master.then();
}
}
// Multiple arguments are aggregated like Promise.all array elements
while ( i-- ) {
adoptValue( resolveValues[ i ], updateFunc( i ), master.reject );
}
return master.promise();
}
} );
// These usually indicate a programmer mistake during development,
// warn about them ASAP rather than swallowing them by default.
var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/;
jQuery.Deferred.exceptionHook = function( error, stack ) {
// Support: IE 8 - 9 only
// Console exists when dev tools are open, which can happen at any time
if ( window.console && window.console.warn && error && rerrorNames.test( error.name ) ) {
window.console.warn( "jQuery.Deferred exception: " + error.message, error.stack, stack );
}
};
jQuery.readyException = function( error ) {
window.setTimeout( function() {
throw error;
} );
};
// The deferred used on DOM ready
var readyList = jQuery.Deferred();
jQuery.fn.ready = function( fn ) {
readyList
.then( fn )
// Wrap jQuery.readyException in a function so that the lookup
// happens at the time of error handling instead of callback
// registration.
.catch( function( error ) {
jQuery.readyException( error );
} );
return this;
};
jQuery.extend( {
// Is the DOM ready to be used? Set to true once it occurs.
isReady: false,
// A counter to track how many items to wait for before
// the ready event fires. See #6781
readyWait: 1,
// Hold (or release) the ready event
holdReady: function( hold ) {
if ( hold ) {
jQuery.readyWait++;
} else {
jQuery.ready( true );
}
},
// Handle when the DOM is ready
ready: function( wait ) {
// Abort if there are pending holds or we're already ready
if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
return;
}
// Remember that the DOM is ready
jQuery.isReady = true;
// If a normal DOM Ready event fired, decrement, and wait if need be
if ( wait !== true && --jQuery.readyWait > 0 ) {
return;
}
// If there are functions bound, to execute
readyList.resolveWith( document, [ jQuery ] );
}
} );
jQuery.ready.then = readyList.then;
// The ready event handler and self cleanup method
function completed() {
document.removeEventListener( "DOMContentLoaded", completed );
window.removeEventListener( "load", completed );
jQuery.ready();
}
// Catch cases where $(document).ready() is called
// after the browser event has already occurred.
// Support: IE <=9 - 10 only
// Older IE sometimes signals "interactive" too soon
if ( document.readyState === "complete" ||
( document.readyState !== "loading" && !document.documentElement.doScroll ) ) {
// Handle it asynchronously to allow scripts the opportunity to delay ready
window.setTimeout( jQuery.ready );
} else {
// Use the handy event callback
document.addEventListener( "DOMContentLoaded", completed );
// A fallback to window.onload, that will always work
window.addEventListener( "load", completed );
}
// Multifunctional method to get and set values of a collection
// The value/s can optionally be executed if it's a function
var access = function( elems, fn, key, value, chainable, emptyGet, raw ) {
var i = 0,
len = elems.length,
bulk = key == null;
// Sets many values
if ( jQuery.type( key ) === "object" ) {
chainable = true;
for ( i in key ) {
access( elems, fn, i, key[ i ], true, emptyGet, raw );
}
// Sets one value
} else if ( value !== undefined ) {
chainable = true;
if ( !jQuery.isFunction( value ) ) {
raw = true;
}
if ( bulk ) {
// Bulk operations run against the entire set
if ( raw ) {
fn.call( elems, value );
fn = null;
// ...except when executing function values
} else {
bulk = fn;
fn = function( elem, key, value ) {
return bulk.call( jQuery( elem ), value );
};
}
}
if ( fn ) {
for ( ; i < len; i++ ) {
fn(
elems[ i ], key, raw ?
value :
value.call( elems[ i ], i, fn( elems[ i ], key ) )
);
}
}
}
return chainable ?
elems :
// Gets
bulk ?
fn.call( elems ) :
len ? fn( elems[ 0 ], key ) : emptyGet;
};
var acceptData = function( owner ) {
// Accepts only:
// - Node
// - Node.ELEMENT_NODE
// - Node.DOCUMENT_NODE
// - Object
// - Any
return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType );
};
function Data() {
this.expando = jQuery.expando + Data.uid++;
}
Data.uid = 1;
Data.prototype = {
cache: function( owner ) {
// Check if the owner object already has a cache
var value = owner[ this.expando ];
// If not, create one
if ( !value ) {
value = {};
// We can accept data for non-element nodes in modern browsers,
// but we should not, see #8335.
// Always return an empty object.
if ( acceptData( owner ) ) {
// If it is a node unlikely to be stringify-ed or looped over
// use plain assignment
if ( owner.nodeType ) {
owner[ this.expando ] = value;
// Otherwise secure it in a non-enumerable property
// configurable must be true to allow the property to be
// deleted when data is removed
} else {
Object.defineProperty( owner, this.expando, {
value: value,
configurable: true
} );
}
}
}
return value;
},
set: function( owner, data, value ) {
var prop,
cache = this.cache( owner );
// Handle: [ owner, key, value ] args
// Always use camelCase key (gh-2257)
if ( typeof data === "string" ) {
cache[ jQuery.camelCase( data ) ] = value;
// Handle: [ owner, { properties } ] args
} else {
// Copy the properties one-by-one to the cache object
for ( prop in data ) {
cache[ jQuery.camelCase( prop ) ] = data[ prop ];
}
}
return cache;
},
get: function( owner, key ) {
return key === undefined ?
this.cache( owner ) :
// Always use camelCase key (gh-2257)
owner[ this.expando ] && owner[ this.expando ][ jQuery.camelCase( key ) ];
},
access: function( owner, key, value ) {
// In cases where either:
//
// 1. No key was specified
// 2. A string key was specified, but no value provided
//
// Take the "read" path and allow the get method to determine
// which value to return, respectively either:
//
// 1. The entire cache object
// 2. The data stored at the key
//
if ( key === undefined ||
( ( key && typeof key === "string" ) && value === undefined ) ) {
return this.get( owner, key );
}
// When the key is not a string, or both a key and value
// are specified, set or extend (existing objects) with either:
//
// 1. An object of properties
// 2. A key and value
//
this.set( owner, key, value );
// Since the "set" path can have two possible entry points
// return the expected data based on which path was taken[*]
return value !== undefined ? value : key;
},
remove: function( owner, key ) {
var i,
cache = owner[ this.expando ];
if ( cache === undefined ) {
return;
}
if ( key !== undefined ) {
// Support array or space separated string of keys
if ( jQuery.isArray( key ) ) {
// If key is an array of keys...
// We always set camelCase keys, so remove that.
key = key.map( jQuery.camelCase );
} else {
key = jQuery.camelCase( key );
// If a key with the spaces exists, use it.
// Otherwise, create an array by matching non-whitespace
key = key in cache ?
[ key ] :
( key.match( rnotwhite ) || [] );
}
i = key.length;
while ( i-- ) {
delete cache[ key[ i ] ];
}
}
// Remove the expando if there's no more data
if ( key === undefined || jQuery.isEmptyObject( cache ) ) {
// Support: Chrome <=35 - 45
// Webkit & Blink performance suffers when deleting properties
// from DOM nodes, so set to undefined instead
// https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted)
if ( owner.nodeType ) {
owner[ this.expando ] = undefined;
} else {
delete owner[ this.expando ];
}
}
},
hasData: function( owner ) {
var cache = owner[ this.expando ];
return cache !== undefined && !jQuery.isEmptyObject( cache );
}
};
var dataPriv = new Data();
var dataUser = new Data();
// Implementation Summary
//
// 1. Enforce API surface and semantic compatibility with 1.9.x branch
// 2. Improve the module's maintainability by reducing the storage
// paths to a single mechanism.
// 3. Use the same single mechanism to support "private" and "user" data.
// 4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
// 5. Avoid exposing implementation details on user objects (eg. expando properties)
// 6. Provide a clear path for implementation upgrade to WeakMap in 2014
var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
rmultiDash = /[A-Z]/g;
function dataAttr( elem, key, data ) {
var name;
// If nothing was found internally, try to fetch any
// data from the HTML5 data-* attribute
if ( data === undefined && elem.nodeType === 1 ) {
name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase();
data = elem.getAttribute( name );
if ( typeof data === "string" ) {
try {
data = data === "true" ? true :
data === "false" ? false :
data === "null" ? null :
// Only convert to a number if it doesn't change the string
+data + "" === data ? +data :
rbrace.test( data ) ? JSON.parse( data ) :
data;
} catch ( e ) {}
// Make sure we set the data so it isn't changed later
dataUser.set( elem, key, data );
} else {
data = undefined;
}
}
return data;
}
jQuery.extend( {
hasData: function( elem ) {
return dataUser.hasData( elem ) || dataPriv.hasData( elem );
},
data: function( elem, name, data ) {
return dataUser.access( elem, name, data );
},
removeData: function( elem, name ) {
dataUser.remove( elem, name );
},
// TODO: Now that all calls to _data and _removeData have been replaced
// with direct calls to dataPriv methods, these can be deprecated.
_data: function( elem, name, data ) {
return dataPriv.access( elem, name, data );
},
_removeData: function( elem, name ) {
dataPriv.remove( elem, name );
}
} );
jQuery.fn.extend( {
data: function( key, value ) {
var i, name, data,
elem = this[ 0 ],
attrs = elem && elem.attributes;
// Gets all values
if ( key === undefined ) {
if ( this.length ) {
data = dataUser.get( elem );
if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) {
i = attrs.length;
while ( i-- ) {
// Support: IE 11 only
// The attrs elements can be null (#14894)
if ( attrs[ i ] ) {
name = attrs[ i ].name;
if ( name.indexOf( "data-" ) === 0 ) {
name = jQuery.camelCase( name.slice( 5 ) );
dataAttr( elem, name, data[ name ] );
}
}
}
dataPriv.set( elem, "hasDataAttrs", true );
}
}
return data;
}
// Sets multiple values
if ( typeof key === "object" ) {
return this.each( function() {
dataUser.set( this, key );
} );
}
return access( this, function( value ) {
var data;
// The calling jQuery object (element matches) is not empty
// (and therefore has an element appears at this[ 0 ]) and the
// `value` parameter was not undefined. An empty jQuery object
// will result in `undefined` for elem = this[ 0 ] which will
// throw an exception if an attempt to read a data cache is made.
if ( elem && value === undefined ) {
// Attempt to get data from the cache
// The key will always be camelCased in Data
data = dataUser.get( elem, key );
if ( data !== undefined ) {
return data;
}
// Attempt to "discover" the data in
// HTML5 custom data-* attrs
data = dataAttr( elem, key );
if ( data !== undefined ) {
return data;
}
// We tried really hard, but the data doesn't exist.
return;
}
// Set the data...
this.each( function() {
// We always store the camelCased key
dataUser.set( this, key, value );
} );
}, null, value, arguments.length > 1, null, true );
},
removeData: function( key ) {
return this.each( function() {
dataUser.remove( this, key );
} );
}
} );
jQuery.extend( {
queue: function( elem, type, data ) {
var queue;
if ( elem ) {
type = ( type || "fx" ) + "queue";
queue = dataPriv.get( elem, type );
// Speed up dequeue by getting out quickly if this is just a lookup
if ( data ) {
if ( !queue || jQuery.isArray( data ) ) {
queue = dataPriv.access( elem, type, jQuery.makeArray( data ) );
} else {
queue.push( data );
}
}
return queue || [];
}
},
dequeue: function( elem, type ) {
type = type || "fx";
var queue = jQuery.queue( elem, type ),
startLength = queue.length,
fn = queue.shift(),
hooks = jQuery._queueHooks( elem, type ),
next = function() {
jQuery.dequeue( elem, type );
};
// If the fx queue is dequeued, always remove the progress sentinel
if ( fn === "inprogress" ) {
fn = queue.shift();
startLength--;
}
if ( fn ) {
// Add a progress sentinel to prevent the fx queue from being
// automatically dequeued
if ( type === "fx" ) {
queue.unshift( "inprogress" );
}
// Clear up the last queue stop function
delete hooks.stop;
fn.call( elem, next, hooks );
}
if ( !startLength && hooks ) {
hooks.empty.fire();
}
},
// Not public - generate a queueHooks object, or return the current one
_queueHooks: function( elem, type ) {
var key = type + "queueHooks";
return dataPriv.get( elem, key ) || dataPriv.access( elem, key, {
empty: jQuery.Callbacks( "once memory" ).add( function() {
dataPriv.remove( elem, [ type + "queue", key ] );
} )
} );
}
} );
jQuery.fn.extend( {
queue: function( type, data ) {
var setter = 2;
if ( typeof type !== "string" ) {
data = type;
type = "fx";
setter--;
}
if ( arguments.length < setter ) {
return jQuery.queue( this[ 0 ], type );
}
return data === undefined ?
this :
this.each( function() {
var queue = jQuery.queue( this, type, data );
// Ensure a hooks for this queue
jQuery._queueHooks( this, type );
if ( type === "fx" && queue[ 0 ] !== "inprogress" ) {
jQuery.dequeue( this, type );
}
} );
},
dequeue: function( type ) {
return this.each( function() {
jQuery.dequeue( this, type );
} );
},
clearQueue: function( type ) {
return this.queue( type || "fx", [] );
},
// Get a promise resolved when queues of a certain type
// are emptied (fx is the type by default)
promise: function( type, obj ) {
var tmp,
count = 1,
defer = jQuery.Deferred(),
elements = this,
i = this.length,
resolve = function() {
if ( !( --count ) ) {
defer.resolveWith( elements, [ elements ] );
}
};
if ( typeof type !== "string" ) {
obj = type;
type = undefined;
}
type = type || "fx";
while ( i-- ) {
tmp = dataPriv.get( elements[ i ], type + "queueHooks" );
if ( tmp && tmp.empty ) {
count++;
tmp.empty.add( resolve );
}
}
resolve();
return defer.promise( obj );
}
} );
var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source;
var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" );
var cssExpand = [ "Top", "Right", "Bottom", "Left" ];
var isHiddenWithinTree = function( elem, el ) {
// isHiddenWithinTree might be called from jQuery#filter function;
// in that case, element will be second argument
elem = el || elem;
// Inline style trumps all
return elem.style.display === "none" ||
elem.style.display === "" &&
// Otherwise, check computed style
// Support: Firefox <=43 - 45
// Disconnected elements can have computed display: none, so first confirm that elem is
// in the document.
jQuery.contains( elem.ownerDocument, elem ) &&
jQuery.css( elem, "display" ) === "none";
};
var swap = function( elem, options, callback, args ) {
var ret, name,
old = {};
// Remember the old values, and insert the new ones
for ( name in options ) {
old[ name ] = elem.style[ name ];
elem.style[ name ] = options[ name ];
}
ret = callback.apply( elem, args || [] );
// Revert the old values
for ( name in options ) {
elem.style[ name ] = old[ name ];
}
return ret;
};
function adjustCSS( elem, prop, valueParts, tween ) {
var adjusted,
scale = 1,
maxIterations = 20,
currentValue = tween ?
function() {
return tween.cur();
} :
function() {
return jQuery.css( elem, prop, "" );
},
initial = currentValue(),
unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),
// Starting value computation is required for potential unit mismatches
initialInUnit = ( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) &&
rcssNum.exec( jQuery.css( elem, prop ) );
if ( initialInUnit && initialInUnit[ 3 ] !== unit ) {
// Trust units reported by jQuery.css
unit = unit || initialInUnit[ 3 ];
// Make sure we update the tween properties later on
valueParts = valueParts || [];
// Iteratively approximate from a nonzero starting point
initialInUnit = +initial || 1;
do {
// If previous iteration zeroed out, double until we get *something*.
// Use string for doubling so we don't accidentally see scale as unchanged below
scale = scale || ".5";
// Adjust and apply
initialInUnit = initialInUnit / scale;
jQuery.style( elem, prop, initialInUnit + unit );
// Update scale, tolerating zero or NaN from tween.cur()
// Break the loop if scale is unchanged or perfect, or if we've just had enough.
} while (
scale !== ( scale = currentValue() / initial ) && scale !== 1 && --maxIterations
);
}
if ( valueParts ) {
initialInUnit = +initialInUnit || +initial || 0;
// Apply relative offset (+=/-=) if specified
adjusted = valueParts[ 1 ] ?
initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] :
+valueParts[ 2 ];
if ( tween ) {
tween.unit = unit;
tween.start = initialInUnit;
tween.end = adjusted;
}
}
return adjusted;
}
var defaultDisplayMap = {};
function getDefaultDisplay( elem ) {
var temp,
doc = elem.ownerDocument,
nodeName = elem.nodeName,
display = defaultDisplayMap[ nodeName ];
if ( display ) {
return display;
}
temp = doc.body.appendChild( doc.createElement( nodeName ) ),
display = jQuery.css( temp, "display" );
temp.parentNode.removeChild( temp );
if ( display === "none" ) {
display = "block";
}
defaultDisplayMap[ nodeName ] = display;
return display;
}
function showHide( elements, show ) {
var display, elem,
values = [],
index = 0,
length = elements.length;
// Determine new display value for elements that need to change
for ( ; index < length; index++ ) {
elem = elements[ index ];
if ( !elem.style ) {
continue;
}
display = elem.style.display;
if ( show ) {
// Since we force visibility upon cascade-hidden elements, an immediate (and slow)
// check is required in this first loop unless we have a nonempty display value (either
// inline or about-to-be-restored)
if ( display === "none" ) {
values[ index ] = dataPriv.get( elem, "display" ) || null;
if ( !values[ index ] ) {
elem.style.display = "";
}
}
if ( elem.style.display === "" && isHiddenWithinTree( elem ) ) {
values[ index ] = getDefaultDisplay( elem );
}
} else {
if ( display !== "none" ) {
values[ index ] = "none";
// Remember what we're overwriting
dataPriv.set( elem, "display", display );
}
}
}
// Set the display of the elements in a second loop to avoid constant reflow
for ( index = 0; index < length; index++ ) {
if ( values[ index ] != null ) {
elements[ index ].style.display = values[ index ];
}
}
return elements;
}
jQuery.fn.extend( {
show: function() {
return showHide( this, true );
},
hide: function() {
return showHide( this );
},
toggle: function( state ) {
if ( typeof state === "boolean" ) {
return state ? this.show() : this.hide();
}
return this.each( function() {
if ( isHiddenWithinTree( this ) ) {
jQuery( this ).show();
} else {
jQuery( this ).hide();
}
} );
}
} );
var rcheckableType = ( /^(?:checkbox|radio)$/i );
var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]+)/i );
var rscriptType = ( /^$|\/(?:java|ecma)script/i );
// We have to close these tags to support XHTML (#13200)
var wrapMap = {
// Support: IE <=9 only
option: [ 1, "<select multiple='multiple'>", "</select>" ],
// XHTML parsers do not magically insert elements in the
// same way that tag soup parsers do. So we cannot shorten
// this by omitting <tbody> or other required elements.
thead: [ 1, "<table>", "</table>" ],
col: [ 2, "<table><colgroup>", "</colgroup></table>" ],
tr: [ 2, "<table><tbody>", "</tbody></table>" ],
td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],
_default: [ 0, "", "" ]
};
// Support: IE <=9 only
wrapMap.optgroup = wrapMap.option;
wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
wrapMap.th = wrapMap.td;
function getAll( context, tag ) {
// Support: IE <=9 - 11 only
// Use typeof to avoid zero-argument method invocation on host objects (#15151)
var ret = typeof context.getElementsByTagName !== "undefined" ?
context.getElementsByTagName( tag || "*" ) :
typeof context.querySelectorAll !== "undefined" ?
context.querySelectorAll( tag || "*" ) :
[];
return tag === undefined || tag && jQuery.nodeName( context, tag ) ?
jQuery.merge( [ context ], ret ) :
ret;
}
// Mark scripts as having already been evaluated
function setGlobalEval( elems, refElements ) {
var i = 0,
l = elems.length;
for ( ; i < l; i++ ) {
dataPriv.set(
elems[ i ],
"globalEval",
!refElements || dataPriv.get( refElements[ i ], "globalEval" )
);
}
}
var rhtml = /<|&#?\w+;/;
function buildFragment( elems, context, scripts, selection, ignored ) {
var elem, tmp, tag, wrap, contains, j,
fragment = context.createDocumentFragment(),
nodes = [],
i = 0,
l = elems.length;
for ( ; i < l; i++ ) {
elem = elems[ i ];
if ( elem || elem === 0 ) {
// Add nodes directly
if ( jQuery.type( elem ) === "object" ) {
// Support: Android <=4.0 only, PhantomJS 1 only
// push.apply(_, arraylike) throws on ancient WebKit
jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );
// Convert non-html into a text node
} else if ( !rhtml.test( elem ) ) {
nodes.push( context.createTextNode( elem ) );
// Convert html into DOM nodes
} else {
tmp = tmp || fragment.appendChild( context.createElement( "div" ) );
// Deserialize a standard representation
tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase();
wrap = wrapMap[ tag ] || wrapMap._default;
tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ];
// Descend through wrappers to the right content
j = wrap[ 0 ];
while ( j-- ) {
tmp = tmp.lastChild;
}
// Support: Android <=4.0 only, PhantomJS 1 only
// push.apply(_, arraylike) throws on ancient WebKit
jQuery.merge( nodes, tmp.childNodes );
// Remember the top-level container
tmp = fragment.firstChild;
// Ensure the created nodes are orphaned (#12392)
tmp.textContent = "";
}
}
}
// Remove wrapper from fragment
fragment.textContent = "";
i = 0;
while ( ( elem = nodes[ i++ ] ) ) {
// Skip elements already in the context collection (trac-4087)
if ( selection && jQuery.inArray( elem, selection ) > -1 ) {
if ( ignored ) {
ignored.push( elem );
}
continue;
}
contains = jQuery.contains( elem.ownerDocument, elem );
// Append to fragment
tmp = getAll( fragment.appendChild( elem ), "script" );
// Preserve script evaluation history
if ( contains ) {
setGlobalEval( tmp );
}
// Capture executables
if ( scripts ) {
j = 0;
while ( ( elem = tmp[ j++ ] ) ) {
if ( rscriptType.test( elem.type || "" ) ) {
scripts.push( elem );
}
}
}
}
return fragment;
}
( function() {
var fragment = document.createDocumentFragment(),
div = fragment.appendChild( document.createElement( "div" ) ),
input = document.createElement( "input" );
// Support: Android 4.0 - 4.3 only
// Check state lost if the name is set (#11217)
// Support: Windows Web Apps (WWA)
// `name` and `type` must use .setAttribute for WWA (#14901)
input.setAttribute( "type", "radio" );
input.setAttribute( "checked", "checked" );
input.setAttribute( "name", "t" );
div.appendChild( input );
// Support: Android <=4.1 only
// Older WebKit doesn't clone checked state correctly in fragments
support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;
// Support: IE <=11 only
// Make sure textarea (and checkbox) defaultValue is properly cloned
div.innerHTML = "<textarea>x</textarea>";
support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;
} )();
var documentElement = document.documentElement;
var
rkeyEvent = /^key/,
rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/,
rtypenamespace = /^([^.]*)(?:\.(.+)|)/;
function returnTrue() {
return true;
}
function returnFalse() {
return false;
}
// Support: IE <=9 only
// See #13393 for more info
function safeActiveElement() {
try {
return document.activeElement;
} catch ( err ) { }
}
function on( elem, types, selector, data, fn, one ) {
var origFn, type;
// Types can be a map of types/handlers
if ( typeof types === "object" ) {
// ( types-Object, selector, data )
if ( typeof selector !== "string" ) {
// ( types-Object, data )
data = data || selector;
selector = undefined;
}
for ( type in types ) {
on( elem, type, selector, data, types[ type ], one );
}
return elem;
}
if ( data == null && fn == null ) {
// ( types, fn )
fn = selector;
data = selector = undefined;
} else if ( fn == null ) {
if ( typeof selector === "string" ) {
// ( types, selector, fn )
fn = data;
data = undefined;
} else {
// ( types, data, fn )
fn = data;
data = selector;
selector = undefined;
}
}
if ( fn === false ) {
fn = returnFalse;
} else if ( !fn ) {
return elem;
}
if ( one === 1 ) {
origFn = fn;
fn = function( event ) {
// Can use an empty set, since event contains the info
jQuery().off( event );
return origFn.apply( this, arguments );
};
// Use same guid so caller can remove using origFn
fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
}
return elem.each( function() {
jQuery.event.add( this, types, fn, data, selector );
} );
}
/*
* Helper functions for managing events -- not part of the public interface.
* Props to Dean Edwards' addEvent library for many of the ideas.
*/
jQuery.event = {
global: {},
add: function( elem, types, handler, data, selector ) {
var handleObjIn, eventHandle, tmp,
events, t, handleObj,
special, handlers, type, namespaces, origType,
elemData = dataPriv.get( elem );
// Don't attach events to noData or text/comment nodes (but allow plain objects)
if ( !elemData ) {
return;
}
// Caller can pass in an object of custom data in lieu of the handler
if ( handler.handler ) {
handleObjIn = handler;
handler = handleObjIn.handler;
selector = handleObjIn.selector;
}
// Ensure that invalid selectors throw exceptions at attach time
// Evaluate against documentElement in case elem is a non-element node (e.g., document)
if ( selector ) {
jQuery.find.matchesSelector( documentElement, selector );
}
// Make sure that the handler has a unique ID, used to find/remove it later
if ( !handler.guid ) {
handler.guid = jQuery.guid++;
}
// Init the element's event structure and main handler, if this is the first
if ( !( events = elemData.events ) ) {
events = elemData.events = {};
}
if ( !( eventHandle = elemData.handle ) ) {
eventHandle = elemData.handle = function( e ) {
// Discard the second event of a jQuery.event.trigger() and
// when an event is called after a page has unloaded
return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ?
jQuery.event.dispatch.apply( elem, arguments ) : undefined;
};
}
// Handle multiple events separated by a space
types = ( types || "" ).match( rnotwhite ) || [ "" ];
t = types.length;
while ( t-- ) {
tmp = rtypenamespace.exec( types[ t ] ) || [];
type = origType = tmp[ 1 ];
namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();
// There *must* be a type, no attaching namespace-only handlers
if ( !type ) {
continue;
}
// If event changes its type, use the special event handlers for the changed type
special = jQuery.event.special[ type ] || {};
// If selector defined, determine special event api type, otherwise given type
type = ( selector ? special.delegateType : special.bindType ) || type;
// Update special based on newly reset type
special = jQuery.event.special[ type ] || {};
// handleObj is passed to all event handlers
handleObj = jQuery.extend( {
type: type,
origType: origType,
data: data,
handler: handler,
guid: handler.guid,
selector: selector,
needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
namespace: namespaces.join( "." )
}, handleObjIn );
// Init the event handler queue if we're the first
if ( !( handlers = events[ type ] ) ) {
handlers = events[ type ] = [];
handlers.delegateCount = 0;
// Only use addEventListener if the special events handler returns false
if ( !special.setup ||
special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
if ( elem.addEventListener ) {
elem.addEventListener( type, eventHandle );
}
}
}
if ( special.add ) {
special.add.call( elem, handleObj );
if ( !handleObj.handler.guid ) {
handleObj.handler.guid = handler.guid;
}
}
// Add to the element's handler list, delegates in front
if ( selector ) {
handlers.splice( handlers.delegateCount++, 0, handleObj );
} else {
handlers.push( handleObj );
}
// Keep track of which events have ever been used, for event optimization
jQuery.event.global[ type ] = true;
}
},
// Detach an event or set of events from an element
remove: function( elem, types, handler, selector, mappedTypes ) {
var j, origCount, tmp,
events, t, handleObj,
special, handlers, type, namespaces, origType,
elemData = dataPriv.hasData( elem ) && dataPriv.get( elem );
if ( !elemData || !( events = elemData.events ) ) {
return;
}
// Once for each type.namespace in types; type may be omitted
types = ( types || "" ).match( rnotwhite ) || [ "" ];
t = types.length;
while ( t-- ) {
tmp = rtypenamespace.exec( types[ t ] ) || [];
type = origType = tmp[ 1 ];
namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();
// Unbind all events (on this namespace, if provided) for the element
if ( !type ) {
for ( type in events ) {
jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
}
continue;
}
special = jQuery.event.special[ type ] || {};
type = ( selector ? special.delegateType : special.bindType ) || type;
handlers = events[ type ] || [];
tmp = tmp[ 2 ] &&
new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" );
// Remove matching events
origCount = j = handlers.length;
while ( j-- ) {
handleObj = handlers[ j ];
if ( ( mappedTypes || origType === handleObj.origType ) &&
( !handler || handler.guid === handleObj.guid ) &&
( !tmp || tmp.test( handleObj.namespace ) ) &&
( !selector || selector === handleObj.selector ||
selector === "**" && handleObj.selector ) ) {
handlers.splice( j, 1 );
if ( handleObj.selector ) {
handlers.delegateCount--;
}
if ( special.remove ) {
special.remove.call( elem, handleObj );
}
}
}
// Remove generic event handler if we removed something and no more handlers exist
// (avoids potential for endless recursion during removal of special event handlers)
if ( origCount && !handlers.length ) {
if ( !special.teardown ||
special.teardown.call( elem, namespaces, elemData.handle ) === false ) {
jQuery.removeEvent( elem, type, elemData.handle );
}
delete events[ type ];
}
}
// Remove data and the expando if it's no longer used
if ( jQuery.isEmptyObject( events ) ) {
dataPriv.remove( elem, "handle events" );
}
},
dispatch: function( nativeEvent ) {
// Make a writable jQuery.Event from the native event object
var event = jQuery.event.fix( nativeEvent );
var i, j, ret, matched, handleObj, handlerQueue,
args = new Array( arguments.length ),
handlers = ( dataPriv.get( this, "events" ) || {} )[ event.type ] || [],
special = jQuery.event.special[ event.type ] || {};
// Use the fix-ed jQuery.Event rather than the (read-only) native event
args[ 0 ] = event;
for ( i = 1; i < arguments.length; i++ ) {
args[ i ] = arguments[ i ];
}
event.delegateTarget = this;
// Call the preDispatch hook for the mapped type, and let it bail if desired
if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
return;
}
// Determine handlers
handlerQueue = jQuery.event.handlers.call( this, event, handlers );
// Run delegates first; they may want to stop propagation beneath us
i = 0;
while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) {
event.currentTarget = matched.elem;
j = 0;
while ( ( handleObj = matched.handlers[ j++ ] ) &&
!event.isImmediatePropagationStopped() ) {
// Triggered event must either 1) have no namespace, or 2) have namespace(s)
// a subset or equal to those in the bound event (both can have no namespace).
if ( !event.rnamespace || event.rnamespace.test( handleObj.namespace ) ) {
event.handleObj = handleObj;
event.data = handleObj.data;
ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle ||
handleObj.handler ).apply( matched.elem, args );
if ( ret !== undefined ) {
if ( ( event.result = ret ) === false ) {
event.preventDefault();
event.stopPropagation();
}
}
}
}
}
// Call the postDispatch hook for the mapped type
if ( special.postDispatch ) {
special.postDispatch.call( this, event );
}
return event.result;
},
handlers: function( event, handlers ) {
var i, matches, sel, handleObj,
handlerQueue = [],
delegateCount = handlers.delegateCount,
cur = event.target;
// Support: IE <=9
// Find delegate handlers
// Black-hole SVG <use> instance trees (#13180)
//
// Support: Firefox <=42
// Avoid non-left-click in FF but don't block IE radio events (#3861, gh-2343)
if ( delegateCount && cur.nodeType &&
( event.type !== "click" || isNaN( event.button ) || event.button < 1 ) ) {
for ( ; cur !== this; cur = cur.parentNode || this ) {
// Don't check non-elements (#13208)
// Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
if ( cur.nodeType === 1 && ( cur.disabled !== true || event.type !== "click" ) ) {
matches = [];
for ( i = 0; i < delegateCount; i++ ) {
handleObj = handlers[ i ];
// Don't conflict with Object.prototype properties (#13203)
sel = handleObj.selector + " ";
if ( matches[ sel ] === undefined ) {
matches[ sel ] = handleObj.needsContext ?
jQuery( sel, this ).index( cur ) > -1 :
jQuery.find( sel, this, null, [ cur ] ).length;
}
if ( matches[ sel ] ) {
matches.push( handleObj );
}
}
if ( matches.length ) {
handlerQueue.push( { elem: cur, handlers: matches } );
}
}
}
}
// Add the remaining (directly-bound) handlers
if ( delegateCount < handlers.length ) {
handlerQueue.push( { elem: this, handlers: handlers.slice( delegateCount ) } );
}
return handlerQueue;
},
addProp: function( name, hook ) {
Object.defineProperty( jQuery.Event.prototype, name, {
enumerable: true,
configurable: true,
get: jQuery.isFunction( hook ) ?
function() {
if ( this.originalEvent ) {
return hook( this.originalEvent );
}
} :
function() {
if ( this.originalEvent ) {
return this.originalEvent[ name ];
}
},
set: function( value ) {
Object.defineProperty( this, name, {
enumerable: true,
configurable: true,
writable: true,
value: value
} );
}
} );
},
fix: function( originalEvent ) {
return originalEvent[ jQuery.expando ] ?
originalEvent :
new jQuery.Event( originalEvent );
},
special: {
load: {
// Prevent triggered image.load events from bubbling to window.load
noBubble: true
},
focus: {
// Fire native event if possible so blur/focus sequence is correct
trigger: function() {
if ( this !== safeActiveElement() && this.focus ) {
this.focus();
return false;
}
},
delegateType: "focusin"
},
blur: {
trigger: function() {
if ( this === safeActiveElement() && this.blur ) {
this.blur();
return false;
}
},
delegateType: "focusout"
},
click: {
// For checkbox, fire native event so checked state will be right
trigger: function() {
if ( this.type === "checkbox" && this.click && jQuery.nodeName( this, "input" ) ) {
this.click();
return false;
}
},
// For cross-browser consistency, don't fire native .click() on links
_default: function( event ) {
return jQuery.nodeName( event.target, "a" );
}
},
beforeunload: {
postDispatch: function( event ) {
// Support: Firefox 20+
// Firefox doesn't alert if the returnValue field is not set.
if ( event.result !== undefined && event.originalEvent ) {
event.originalEvent.returnValue = event.result;
}
}
}
}
};
jQuery.removeEvent = function( elem, type, handle ) {
// This "if" is needed for plain objects
if ( elem.removeEventListener ) {
elem.removeEventListener( type, handle );
}
};
jQuery.Event = function( src, props ) {
// Allow instantiation without the 'new' keyword
if ( !( this instanceof jQuery.Event ) ) {
return new jQuery.Event( src, props );
}
// Event object
if ( src && src.type ) {
this.originalEvent = src;
this.type = src.type;
// Events bubbling up the document may have been marked as prevented
// by a handler lower down the tree; reflect the correct value.
this.isDefaultPrevented = src.defaultPrevented ||
src.defaultPrevented === undefined &&
// Support: Android <=2.3 only
src.returnValue === false ?
returnTrue :
returnFalse;
// Create target properties
// Support: Safari <=6 - 7 only
// Target should not be a text node (#504, #13143)
this.target = ( src.target && src.target.nodeType === 3 ) ?
src.target.parentNode :
src.target;
this.currentTarget = src.currentTarget;
this.relatedTarget = src.relatedTarget;
// Event type
} else {
this.type = src;
}
// Put explicitly provided properties onto the event object
if ( props ) {
jQuery.extend( this, props );
}
// Create a timestamp if incoming event doesn't have one
this.timeStamp = src && src.timeStamp || jQuery.now();
// Mark it as fixed
this[ jQuery.expando ] = true;
};
// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
// https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
jQuery.Event.prototype = {
constructor: jQuery.Event,
isDefaultPrevented: returnFalse,
isPropagationStopped: returnFalse,
isImmediatePropagationStopped: returnFalse,
isSimulated: false,
preventDefault: function() {
var e = this.originalEvent;
this.isDefaultPrevented = returnTrue;
if ( e && !this.isSimulated ) {
e.preventDefault();
}
},
stopPropagation: function() {
var e = this.originalEvent;
this.isPropagationStopped = returnTrue;
if ( e && !this.isSimulated ) {
e.stopPropagation();
}
},
stopImmediatePropagation: function() {
var e = this.originalEvent;
this.isImmediatePropagationStopped = returnTrue;
if ( e && !this.isSimulated ) {
e.stopImmediatePropagation();
}
this.stopPropagation();
}
};
// Includes all common event props including KeyEvent and MouseEvent specific props
jQuery.each( {
altKey: true,
bubbles: true,
cancelable: true,
changedTouches: true,
ctrlKey: true,
detail: true,
eventPhase: true,
metaKey: true,
pageX: true,
pageY: true,
shiftKey: true,
view: true,
"char": true,
charCode: true,
key: true,
keyCode: true,
button: true,
buttons: true,
clientX: true,
clientY: true,
offsetX: true,
offsetY: true,
pointerId: true,
pointerType: true,
screenX: true,
screenY: true,
targetTouches: true,
toElement: true,
touches: true,
which: function( event ) {
var button = event.button;
// Add which for key events
if ( event.which == null && rkeyEvent.test( event.type ) ) {
return event.charCode != null ? event.charCode : event.keyCode;
}
// Add which for click: 1 === left; 2 === middle; 3 === right
if ( !event.which && button !== undefined && rmouseEvent.test( event.type ) ) {
return ( button & 1 ? 1 : ( button & 2 ? 3 : ( button & 4 ? 2 : 0 ) ) );
}
return event.which;
}
}, jQuery.event.addProp );
// Create mouseenter/leave events using mouseover/out and event-time checks
// so that event delegation works in jQuery.
// Do the same for pointerenter/pointerleave and pointerover/pointerout
//
// Support: Safari 7 only
// Safari sends mouseenter too often; see:
// https://bugs.chromium.org/p/chromium/issues/detail?id=470258
// for the description of the bug (it existed in older Chrome versions as well).
jQuery.each( {
mouseenter: "mouseover",
mouseleave: "mouseout",
pointerenter: "pointerover",
pointerleave: "pointerout"
}, function( orig, fix ) {
jQuery.event.special[ orig ] = {
delegateType: fix,
bindType: fix,
handle: function( event ) {
var ret,
target = this,
related = event.relatedTarget,
handleObj = event.handleObj;
// For mouseenter/leave call the handler if related is outside the target.
// NB: No relatedTarget if the mouse left/entered the browser window
if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) {
event.type = handleObj.origType;
ret = handleObj.handler.apply( this, arguments );
event.type = fix;
}
return ret;
}
};
} );
jQuery.fn.extend( {
on: function( types, selector, data, fn ) {
return on( this, types, selector, data, fn );
},
one: function( types, selector, data, fn ) {
return on( this, types, selector, data, fn, 1 );
},
off: function( types, selector, fn ) {
var handleObj, type;
if ( types && types.preventDefault && types.handleObj ) {
// ( event ) dispatched jQuery.Event
handleObj = types.handleObj;
jQuery( types.delegateTarget ).off(
handleObj.namespace ?
handleObj.origType + "." + handleObj.namespace :
handleObj.origType,
handleObj.selector,
handleObj.handler
);
return this;
}
if ( typeof types === "object" ) {
// ( types-object [, selector] )
for ( type in types ) {
this.off( type, selector, types[ type ] );
}
return this;
}
if ( selector === false || typeof selector === "function" ) {
// ( types [, fn] )
fn = selector;
selector = undefined;
}
if ( fn === false ) {
fn = returnFalse;
}
return this.each( function() {
jQuery.event.remove( this, types, fn, selector );
} );
}
} );
var
/* eslint-disable max-len */
// See https://github.com/eslint/eslint/issues/3229
rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([a-z][^\/\0>\x20\t\r\n\f]*)[^>]*)\/>/gi,
/* eslint-enable */
// Support: IE <=10 - 11, Edge 12 - 13
// In IE/Edge using regex groups here causes severe slowdowns.
// See https://connect.microsoft.com/IE/feedback/details/1736512/
rnoInnerhtml = /<script|<style|<link/i,
// checked="checked" or checked
rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
rscriptTypeMasked = /^true\/(.*)/,
rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g;
function manipulationTarget( elem, content ) {
if ( jQuery.nodeName( elem, "table" ) &&
jQuery.nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) {
return elem.getElementsByTagName( "tbody" )[ 0 ] || elem;
}
return elem;
}
// Replace/restore the type attribute of script elements for safe DOM manipulation
function disableScript( elem ) {
elem.type = ( elem.getAttribute( "type" ) !== null ) + "/" + elem.type;
return elem;
}
function restoreScript( elem ) {
var match = rscriptTypeMasked.exec( elem.type );
if ( match ) {
elem.type = match[ 1 ];
} else {
elem.removeAttribute( "type" );
}
return elem;
}
function cloneCopyEvent( src, dest ) {
var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events;
if ( dest.nodeType !== 1 ) {
return;
}
// 1. Copy private data: events, handlers, etc.
if ( dataPriv.hasData( src ) ) {
pdataOld = dataPriv.access( src );
pdataCur = dataPriv.set( dest, pdataOld );
events = pdataOld.events;
if ( events ) {
delete pdataCur.handle;
pdataCur.events = {};
for ( type in events ) {
for ( i = 0, l = events[ type ].length; i < l; i++ ) {
jQuery.event.add( dest, type, events[ type ][ i ] );
}
}
}
}
// 2. Copy user data
if ( dataUser.hasData( src ) ) {
udataOld = dataUser.access( src );
udataCur = jQuery.extend( {}, udataOld );
dataUser.set( dest, udataCur );
}
}
// Fix IE bugs, see support tests
function fixInput( src, dest ) {
var nodeName = dest.nodeName.toLowerCase();
// Fails to persist the checked state of a cloned checkbox or radio button.
if ( nodeName === "input" && rcheckableType.test( src.type ) ) {
dest.checked = src.checked;
// Fails to return the selected option to the default selected state when cloning options
} else if ( nodeName === "input" || nodeName === "textarea" ) {
dest.defaultValue = src.defaultValue;
}
}
function domManip( collection, args, callback, ignored ) {
// Flatten any nested arrays
args = concat.apply( [], args );
var fragment, first, scripts, hasScripts, node, doc,
i = 0,
l = collection.length,
iNoClone = l - 1,
value = args[ 0 ],
isFunction = jQuery.isFunction( value );
// We can't cloneNode fragments that contain checked, in WebKit
if ( isFunction ||
( l > 1 && typeof value === "string" &&
!support.checkClone && rchecked.test( value ) ) ) {
return collection.each( function( index ) {
var self = collection.eq( index );
if ( isFunction ) {
args[ 0 ] = value.call( this, index, self.html() );
}
domManip( self, args, callback, ignored );
} );
}
if ( l ) {
fragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored );
first = fragment.firstChild;
if ( fragment.childNodes.length === 1 ) {
fragment = first;
}
// Require either new content or an interest in ignored elements to invoke the callback
if ( first || ignored ) {
scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
hasScripts = scripts.length;
// Use the original fragment for the last item
// instead of the first because it can end up
// being emptied incorrectly in certain situations (#8070).
for ( ; i < l; i++ ) {
node = fragment;
if ( i !== iNoClone ) {
node = jQuery.clone( node, true, true );
// Keep references to cloned scripts for later restoration
if ( hasScripts ) {
// Support: Android <=4.0 only, PhantomJS 1 only
// push.apply(_, arraylike) throws on ancient WebKit
jQuery.merge( scripts, getAll( node, "script" ) );
}
}
callback.call( collection[ i ], node, i );
}
if ( hasScripts ) {
doc = scripts[ scripts.length - 1 ].ownerDocument;
// Reenable scripts
jQuery.map( scripts, restoreScript );
// Evaluate executable scripts on first document insertion
for ( i = 0; i < hasScripts; i++ ) {
node = scripts[ i ];
if ( rscriptType.test( node.type || "" ) &&
!dataPriv.access( node, "globalEval" ) &&
jQuery.contains( doc, node ) ) {
if ( node.src ) {
// Optional AJAX dependency, but won't run scripts if not present
if ( jQuery._evalUrl ) {
jQuery._evalUrl( node.src );
}
} else {
DOMEval( node.textContent.replace( rcleanScript, "" ), doc );
}
}
}
}
}
}
return collection;
}
function remove( elem, selector, keepData ) {
var node,
nodes = selector ? jQuery.filter( selector, elem ) : elem,
i = 0;
for ( ; ( node = nodes[ i ] ) != null; i++ ) {
if ( !keepData && node.nodeType === 1 ) {
jQuery.cleanData( getAll( node ) );
}
if ( node.parentNode ) {
if ( keepData && jQuery.contains( node.ownerDocument, node ) ) {
setGlobalEval( getAll( node, "script" ) );
}
node.parentNode.removeChild( node );
}
}
return elem;
}
jQuery.extend( {
htmlPrefilter: function( html ) {
return html.replace( rxhtmlTag, "<$1></$2>" );
},
clone: function( elem, dataAndEvents, deepDataAndEvents ) {
var i, l, srcElements, destElements,
clone = elem.cloneNode( true ),
inPage = jQuery.contains( elem.ownerDocument, elem );
// Fix IE cloning issues
if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) &&
!jQuery.isXMLDoc( elem ) ) {
// We eschew Sizzle here for performance reasons: https://jsperf.com/getall-vs-sizzle/2
destElements = getAll( clone );
srcElements = getAll( elem );
for ( i = 0, l = srcElements.length; i < l; i++ ) {
fixInput( srcElements[ i ], destElements[ i ] );
}
}
// Copy the events from the original to the clone
if ( dataAndEvents ) {
if ( deepDataAndEvents ) {
srcElements = srcElements || getAll( elem );
destElements = destElements || getAll( clone );
for ( i = 0, l = srcElements.length; i < l; i++ ) {
cloneCopyEvent( srcElements[ i ], destElements[ i ] );
}
} else {
cloneCopyEvent( elem, clone );
}
}
// Preserve script evaluation history
destElements = getAll( clone, "script" );
if ( destElements.length > 0 ) {
setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
}
// Return the cloned set
return clone;
},
cleanData: function( elems ) {
var data, elem, type,
special = jQuery.event.special,
i = 0;
for ( ; ( elem = elems[ i ] ) !== undefined; i++ ) {
if ( acceptData( elem ) ) {
if ( ( data = elem[ dataPriv.expando ] ) ) {
if ( data.events ) {
for ( type in data.events ) {
if ( special[ type ] ) {
jQuery.event.remove( elem, type );
// This is a shortcut to avoid jQuery.event.remove's overhead
} else {
jQuery.removeEvent( elem, type, data.handle );
}
}
}
// Support: Chrome <=35 - 45+
// Assign undefined instead of using delete, see Data#remove
elem[ dataPriv.expando ] = undefined;
}
if ( elem[ dataUser.expando ] ) {
// Support: Chrome <=35 - 45+
// Assign undefined instead of using delete, see Data#remove
elem[ dataUser.expando ] = undefined;
}
}
}
}
} );
jQuery.fn.extend( {
detach: function( selector ) {
return remove( this, selector, true );
},
remove: function( selector ) {
return remove( this, selector );
},
text: function( value ) {
return access( this, function( value ) {
return value === undefined ?
jQuery.text( this ) :
this.empty().each( function() {
if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
this.textContent = value;
}
} );
}, null, value, arguments.length );
},
append: function() {
return domManip( this, arguments, function( elem ) {
if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
var target = manipulationTarget( this, elem );
target.appendChild( elem );
}
} );
},
prepend: function() {
return domManip( this, arguments, function( elem ) {
if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
var target = manipulationTarget( this, elem );
target.insertBefore( elem, target.firstChild );
}
} );
},
before: function() {
return domManip( this, arguments, function( elem ) {
if ( this.parentNode ) {
this.parentNode.insertBefore( elem, this );
}
} );
},
after: function() {
return domManip( this, arguments, function( elem ) {
if ( this.parentNode ) {
this.parentNode.insertBefore( elem, this.nextSibling );
}
} );
},
empty: function() {
var elem,
i = 0;
for ( ; ( elem = this[ i ] ) != null; i++ ) {
if ( elem.nodeType === 1 ) {
// Prevent memory leaks
jQuery.cleanData( getAll( elem, false ) );
// Remove any remaining nodes
elem.textContent = "";
}
}
return this;
},
clone: function( dataAndEvents, deepDataAndEvents ) {
dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;
return this.map( function() {
return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
} );
},
html: function( value ) {
return access( this, function( value ) {
var elem = this[ 0 ] || {},
i = 0,
l = this.length;
if ( value === undefined && elem.nodeType === 1 ) {
return elem.innerHTML;
}
// See if we can take a shortcut and just use innerHTML
if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
!wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {
value = jQuery.htmlPrefilter( value );
try {
for ( ; i < l; i++ ) {
elem = this[ i ] || {};
// Remove element nodes and prevent memory leaks
if ( elem.nodeType === 1 ) {
jQuery.cleanData( getAll( elem, false ) );
elem.innerHTML = value;
}
}
elem = 0;
// If using innerHTML throws an exception, use the fallback method
} catch ( e ) {}
}
if ( elem ) {
this.empty().append( value );
}
}, null, value, arguments.length );
},
replaceWith: function() {
var ignored = [];
// Make the changes, replacing each non-ignored context element with the new content
return domManip( this, arguments, function( elem ) {
var parent = this.parentNode;
if ( jQuery.inArray( this, ignored ) < 0 ) {
jQuery.cleanData( getAll( this ) );
if ( parent ) {
parent.replaceChild( elem, this );
}
}
// Force callback invocation
}, ignored );
}
} );
jQuery.each( {
appendTo: "append",
prependTo: "prepend",
insertBefore: "before",
insertAfter: "after",
replaceAll: "replaceWith"
}, function( name, original ) {
jQuery.fn[ name ] = function( selector ) {
var elems,
ret = [],
insert = jQuery( selector ),
last = insert.length - 1,
i = 0;
for ( ; i <= last; i++ ) {
elems = i === last ? this : this.clone( true );
jQuery( insert[ i ] )[ original ]( elems );
// Support: Android <=4.0 only, PhantomJS 1 only
// .get() because push.apply(_, arraylike) throws on ancient WebKit
push.apply( ret, elems.get() );
}
return this.pushStack( ret );
};
} );
var rmargin = ( /^margin/ );
var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" );
var getStyles = function( elem ) {
// Support: IE <=11 only, Firefox <=30 (#15098, #14150)
// IE throws on elements created in popups
// FF meanwhile throws on frame elements through "defaultView.getComputedStyle"
var view = elem.ownerDocument.defaultView;
if ( !view || !view.opener ) {
view = window;
}
return view.getComputedStyle( elem );
};
( function() {
// Executing both pixelPosition & boxSizingReliable tests require only one layout
// so they're executed at the same time to save the second computation.
function computeStyleTests() {
// This is a singleton, we need to execute it only once
if ( !div ) {
return;
}
div.style.cssText =
"box-sizing:border-box;" +
"position:relative;display:block;" +
"margin:auto;border:1px;padding:1px;" +
"top:1%;width:50%";
div.innerHTML = "";
documentElement.appendChild( container );
var divStyle = window.getComputedStyle( div );
pixelPositionVal = divStyle.top !== "1%";
// Support: Android 4.0 - 4.3 only, Firefox <=3 - 44
reliableMarginLeftVal = divStyle.marginLeft === "2px";
boxSizingReliableVal = divStyle.width === "4px";
// Support: Android 4.0 - 4.3 only
// Some styles come back with percentage values, even though they shouldn't
div.style.marginRight = "50%";
pixelMarginRightVal = divStyle.marginRight === "4px";
documentElement.removeChild( container );
// Nullify the div so it wouldn't be stored in the memory and
// it will also be a sign that checks already performed
div = null;
}
var pixelPositionVal, boxSizingReliableVal, pixelMarginRightVal, reliableMarginLeftVal,
container = document.createElement( "div" ),
div = document.createElement( "div" );
// Finish early in limited (non-browser) environments
if ( !div.style ) {
return;
}
// Support: IE <=9 - 11 only
// Style of cloned element affects source element cloned (#8908)
div.style.backgroundClip = "content-box";
div.cloneNode( true ).style.backgroundClip = "";
support.clearCloneStyle = div.style.backgroundClip === "content-box";
container.style.cssText = "border:0;width:8px;height:0;top:0;left:-9999px;" +
"padding:0;margin-top:1px;position:absolute";
container.appendChild( div );
jQuery.extend( support, {
pixelPosition: function() {
computeStyleTests();
return pixelPositionVal;
},
boxSizingReliable: function() {
computeStyleTests();
return boxSizingReliableVal;
},
pixelMarginRight: function() {
computeStyleTests();
return pixelMarginRightVal;
},
reliableMarginLeft: function() {
computeStyleTests();
return reliableMarginLeftVal;
}
} );
} )();
function curCSS( elem, name, computed ) {
var width, minWidth, maxWidth, ret,
style = elem.style;
computed = computed || getStyles( elem );
// Support: IE <=9 only
// getPropertyValue is only needed for .css('filter') (#12537)
if ( computed ) {
ret = computed.getPropertyValue( name ) || computed[ name ];
if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {
ret = jQuery.style( elem, name );
}
// A tribute to the "awesome hack by Dean Edwards"
// Android Browser returns percentage for some values,
// but width seems to be reliably pixels.
// This is against the CSSOM draft spec:
// https://drafts.csswg.org/cssom/#resolved-values
if ( !support.pixelMarginRight() && rnumnonpx.test( ret ) && rmargin.test( name ) ) {
// Remember the original values
width = style.width;
minWidth = style.minWidth;
maxWidth = style.maxWidth;
// Put in the new values to get a computed value out
style.minWidth = style.maxWidth = style.width = ret;
ret = computed.width;
// Revert the changed values
style.width = width;
style.minWidth = minWidth;
style.maxWidth = maxWidth;
}
}
return ret !== undefined ?
// Support: IE <=9 - 11 only
// IE returns zIndex value as an integer.
ret + "" :
ret;
}
function addGetHookIf( conditionFn, hookFn ) {
// Define the hook, we'll check on the first run if it's really needed.
return {
get: function() {
if ( conditionFn() ) {
// Hook not needed (or it's not possible to use it due
// to missing dependency), remove it.
delete this.get;
return;
}
// Hook needed; redefine it so that the support test is not executed again.
return ( this.get = hookFn ).apply( this, arguments );
}
};
}
var
// Swappable if display is none or starts with table
// except "table", "table-cell", or "table-caption"
// See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
rdisplayswap = /^(none|table(?!-c[ea]).+)/,
cssShow = { position: "absolute", visibility: "hidden", display: "block" },
cssNormalTransform = {
letterSpacing: "0",
fontWeight: "400"
},
cssPrefixes = [ "Webkit", "Moz", "ms" ],
emptyStyle = document.createElement( "div" ).style;
// Return a css property mapped to a potentially vendor prefixed property
function vendorPropName( name ) {
// Shortcut for names that are not vendor prefixed
if ( name in emptyStyle ) {
return name;
}
// Check for vendor prefixed names
var capName = name[ 0 ].toUpperCase() + name.slice( 1 ),
i = cssPrefixes.length;
while ( i-- ) {
name = cssPrefixes[ i ] + capName;
if ( name in emptyStyle ) {
return name;
}
}
}
function setPositiveNumber( elem, value, subtract ) {
// Any relative (+/-) values have already been
// normalized at this point
var matches = rcssNum.exec( value );
return matches ?
// Guard against undefined "subtract", e.g., when used as in cssHooks
Math.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || "px" ) :
value;
}
function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {
var i = extra === ( isBorderBox ? "border" : "content" ) ?
// If we already have the right measurement, avoid augmentation
4 :
// Otherwise initialize for horizontal or vertical properties
name === "width" ? 1 : 0,
val = 0;
for ( ; i < 4; i += 2 ) {
// Both box models exclude margin, so add it if we want it
if ( extra === "margin" ) {
val += jQuery.css( elem, extra + cssExpand[ i ], true, styles );
}
if ( isBorderBox ) {
// border-box includes padding, so remove it if we want content
if ( extra === "content" ) {
val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
}
// At this point, extra isn't border nor margin, so remove border
if ( extra !== "margin" ) {
val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
}
} else {
// At this point, extra isn't content, so add padding
val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
// At this point, extra isn't content nor padding, so add border
if ( extra !== "padding" ) {
val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
}
}
}
return val;
}
function getWidthOrHeight( elem, name, extra ) {
// Start with offset property, which is equivalent to the border-box value
var val,
valueIsBorderBox = true,
styles = getStyles( elem ),
isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box";
// Support: IE <=11 only
// Running getBoundingClientRect on a disconnected node
// in IE throws an error.
if ( elem.getClientRects().length ) {
val = elem.getBoundingClientRect()[ name ];
}
// Some non-html elements return undefined for offsetWidth, so check for null/undefined
// svg - https://bugzilla.mozilla.org/show_bug.cgi?id=649285
// MathML - https://bugzilla.mozilla.org/show_bug.cgi?id=491668
if ( val <= 0 || val == null ) {
// Fall back to computed then uncomputed css if necessary
val = curCSS( elem, name, styles );
if ( val < 0 || val == null ) {
val = elem.style[ name ];
}
// Computed unit is not pixels. Stop here and return.
if ( rnumnonpx.test( val ) ) {
return val;
}
// Check for style in case a browser which returns unreliable values
// for getComputedStyle silently falls back to the reliable elem.style
valueIsBorderBox = isBorderBox &&
( support.boxSizingReliable() || val === elem.style[ name ] );
// Normalize "", auto, and prepare for extra
val = parseFloat( val ) || 0;
}
// Use the active box-sizing model to add/subtract irrelevant styles
return ( val +
augmentWidthOrHeight(
elem,
name,
extra || ( isBorderBox ? "border" : "content" ),
valueIsBorderBox,
styles
)
) + "px";
}
jQuery.extend( {
// Add in style property hooks for overriding the default
// behavior of getting and setting a style property
cssHooks: {
opacity: {
get: function( elem, computed ) {
if ( computed ) {
// We should always get a number back from opacity
var ret = curCSS( elem, "opacity" );
return ret === "" ? "1" : ret;
}
}
}
},
// Don't automatically add "px" to these possibly-unitless properties
cssNumber: {
"animationIterationCount": true,
"columnCount": true,
"fillOpacity": true,
"flexGrow": true,
"flexShrink": true,
"fontWeight": true,
"lineHeight": true,
"opacity": true,
"order": true,
"orphans": true,
"widows": true,
"zIndex": true,
"zoom": true
},
// Add in properties whose names you wish to fix before
// setting or getting the value
cssProps: {
"float": "cssFloat"
},
// Get and set the style property on a DOM Node
style: function( elem, name, value, extra ) {
// Don't set styles on text and comment nodes
if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
return;
}
// Make sure that we're working with the right name
var ret, type, hooks,
origName = jQuery.camelCase( name ),
style = elem.style;
name = jQuery.cssProps[ origName ] ||
( jQuery.cssProps[ origName ] = vendorPropName( origName ) || origName );
// Gets hook for the prefixed version, then unprefixed version
hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
// Check if we're setting a value
if ( value !== undefined ) {
type = typeof value;
// Convert "+=" or "-=" to relative numbers (#7345)
if ( type === "string" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) {
value = adjustCSS( elem, name, ret );
// Fixes bug #9237
type = "number";
}
// Make sure that null and NaN values aren't set (#7116)
if ( value == null || value !== value ) {
return;
}
// If a number was passed in, add the unit (except for certain CSS properties)
if ( type === "number" ) {
value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" );
}
// background-* props affect original clone's values
if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) {
style[ name ] = "inherit";
}
// If a hook was provided, use that value, otherwise just set the specified value
if ( !hooks || !( "set" in hooks ) ||
( value = hooks.set( elem, value, extra ) ) !== undefined ) {
style[ name ] = value;
}
} else {
// If a hook was provided get the non-computed value from there
if ( hooks && "get" in hooks &&
( ret = hooks.get( elem, false, extra ) ) !== undefined ) {
return ret;
}
// Otherwise just get the value from the style object
return style[ name ];
}
},
css: function( elem, name, extra, styles ) {
var val, num, hooks,
origName = jQuery.camelCase( name );
// Make sure that we're working with the right name
name = jQuery.cssProps[ origName ] ||
( jQuery.cssProps[ origName ] = vendorPropName( origName ) || origName );
// Try prefixed name followed by the unprefixed name
hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
// If a hook was provided get the computed value from there
if ( hooks && "get" in hooks ) {
val = hooks.get( elem, true, extra );
}
// Otherwise, if a way to get the computed value exists, use that
if ( val === undefined ) {
val = curCSS( elem, name, styles );
}
// Convert "normal" to computed value
if ( val === "normal" && name in cssNormalTransform ) {
val = cssNormalTransform[ name ];
}
// Make numeric if forced or a qualifier was provided and val looks numeric
if ( extra === "" || extra ) {
num = parseFloat( val );
return extra === true || isFinite( num ) ? num || 0 : val;
}
return val;
}
} );
jQuery.each( [ "height", "width" ], function( i, name ) {
jQuery.cssHooks[ name ] = {
get: function( elem, computed, extra ) {
if ( computed ) {
// Certain elements can have dimension info if we invisibly show them
// but it must have a current display style that would benefit
return rdisplayswap.test( jQuery.css( elem, "display" ) ) &&
// Support: Safari 8+
// Table columns in Safari have non-zero offsetWidth & zero
// getBoundingClientRect().width unless display is changed.
// Support: IE <=11 only
// Running getBoundingClientRect on a disconnected node
// in IE throws an error.
( !elem.getClientRects().length || !elem.getBoundingClientRect().width ) ?
swap( elem, cssShow, function() {
return getWidthOrHeight( elem, name, extra );
} ) :
getWidthOrHeight( elem, name, extra );
}
},
set: function( elem, value, extra ) {
var matches,
styles = extra && getStyles( elem ),
subtract = extra && augmentWidthOrHeight(
elem,
name,
extra,
jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
styles
);
// Convert to pixels if value adjustment is needed
if ( subtract && ( matches = rcssNum.exec( value ) ) &&
( matches[ 3 ] || "px" ) !== "px" ) {
elem.style[ name ] = value;
value = jQuery.css( elem, name );
}
return setPositiveNumber( elem, value, subtract );
}
};
} );
jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft,
function( elem, computed ) {
if ( computed ) {
return ( parseFloat( curCSS( elem, "marginLeft" ) ) ||
elem.getBoundingClientRect().left -
swap( elem, { marginLeft: 0 }, function() {
return elem.getBoundingClientRect().left;
} )
) + "px";
}
}
);
// These hooks are used by animate to expand properties
jQuery.each( {
margin: "",
padding: "",
border: "Width"
}, function( prefix, suffix ) {
jQuery.cssHooks[ prefix + suffix ] = {
expand: function( value ) {
var i = 0,
expanded = {},
// Assumes a single number if not a string
parts = typeof value === "string" ? value.split( " " ) : [ value ];
for ( ; i < 4; i++ ) {
expanded[ prefix + cssExpand[ i ] + suffix ] =
parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
}
return expanded;
}
};
if ( !rmargin.test( prefix ) ) {
jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
}
} );
jQuery.fn.extend( {
css: function( name, value ) {
return access( this, function( elem, name, value ) {
var styles, len,
map = {},
i = 0;
if ( jQuery.isArray( name ) ) {
styles = getStyles( elem );
len = name.length;
for ( ; i < len; i++ ) {
map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
}
return map;
}
return value !== undefined ?
jQuery.style( elem, name, value ) :
jQuery.css( elem, name );
}, name, value, arguments.length > 1 );
}
} );
function Tween( elem, options, prop, end, easing ) {
return new Tween.prototype.init( elem, options, prop, end, easing );
}
jQuery.Tween = Tween;
Tween.prototype = {
constructor: Tween,
init: function( elem, options, prop, end, easing, unit ) {
this.elem = elem;
this.prop = prop;
this.easing = easing || jQuery.easing._default;
this.options = options;
this.start = this.now = this.cur();
this.end = end;
this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
},
cur: function() {
var hooks = Tween.propHooks[ this.prop ];
return hooks && hooks.get ?
hooks.get( this ) :
Tween.propHooks._default.get( this );
},
run: function( percent ) {
var eased,
hooks = Tween.propHooks[ this.prop ];
if ( this.options.duration ) {
this.pos = eased = jQuery.easing[ this.easing ](
percent, this.options.duration * percent, 0, 1, this.options.duration
);
} else {
this.pos = eased = percent;
}
this.now = ( this.end - this.start ) * eased + this.start;
if ( this.options.step ) {
this.options.step.call( this.elem, this.now, this );
}
if ( hooks && hooks.set ) {
hooks.set( this );
} else {
Tween.propHooks._default.set( this );
}
return this;
}
};
Tween.prototype.init.prototype = Tween.prototype;
Tween.propHooks = {
_default: {
get: function( tween ) {
var result;
// Use a property on the element directly when it is not a DOM element,
// or when there is no matching style property that exists.
if ( tween.elem.nodeType !== 1 ||
tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) {
return tween.elem[ tween.prop ];
}
// Passing an empty string as a 3rd parameter to .css will automatically
// attempt a parseFloat and fallback to a string if the parse fails.
// Simple values such as "10px" are parsed to Float;
// complex values such as "rotate(1rad)" are returned as-is.
result = jQuery.css( tween.elem, tween.prop, "" );
// Empty strings, null, undefined and "auto" are converted to 0.
return !result || result === "auto" ? 0 : result;
},
set: function( tween ) {
// Use step hook for back compat.
// Use cssHook if its there.
// Use .style if available and use plain properties where available.
if ( jQuery.fx.step[ tween.prop ] ) {
jQuery.fx.step[ tween.prop ]( tween );
} else if ( tween.elem.nodeType === 1 &&
( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null ||
jQuery.cssHooks[ tween.prop ] ) ) {
jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
} else {
tween.elem[ tween.prop ] = tween.now;
}
}
}
};
// Support: IE <=9 only
// Panic based approach to setting things on disconnected nodes
Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
set: function( tween ) {
if ( tween.elem.nodeType && tween.elem.parentNode ) {
tween.elem[ tween.prop ] = tween.now;
}
}
};
jQuery.easing = {
linear: function( p ) {
return p;
},
swing: function( p ) {
return 0.5 - Math.cos( p * Math.PI ) / 2;
},
_default: "swing"
};
jQuery.fx = Tween.prototype.init;
// Back compat <1.8 extension point
jQuery.fx.step = {};
var
fxNow, timerId,
rfxtypes = /^(?:toggle|show|hide)$/,
rrun = /queueHooks$/;
function raf() {
if ( timerId ) {
window.requestAnimationFrame( raf );
jQuery.fx.tick();
}
}
// Animations created synchronously will run synchronously
function createFxNow() {
window.setTimeout( function() {
fxNow = undefined;
} );
return ( fxNow = jQuery.now() );
}
// Generate parameters to create a standard animation
function genFx( type, includeWidth ) {
var which,
i = 0,
attrs = { height: type };
// If we include width, step value is 1 to do all cssExpand values,
// otherwise step value is 2 to skip over Left and Right
includeWidth = includeWidth ? 1 : 0;
for ( ; i < 4; i += 2 - includeWidth ) {
which = cssExpand[ i ];
attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
}
if ( includeWidth ) {
attrs.opacity = attrs.width = type;
}
return attrs;
}
function createTween( value, prop, animation ) {
var tween,
collection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ "*" ] ),
index = 0,
length = collection.length;
for ( ; index < length; index++ ) {
if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) {
// We're done with this property
return tween;
}
}
}
function defaultPrefilter( elem, props, opts ) {
var prop, value, toggle, hooks, oldfire, propTween, restoreDisplay, display,
isBox = "width" in props || "height" in props,
anim = this,
orig = {},
style = elem.style,
hidden = elem.nodeType && isHiddenWithinTree( elem ),
dataShow = dataPriv.get( elem, "fxshow" );
// Queue-skipping animations hijack the fx hooks
if ( !opts.queue ) {
hooks = jQuery._queueHooks( elem, "fx" );
if ( hooks.unqueued == null ) {
hooks.unqueued = 0;
oldfire = hooks.empty.fire;
hooks.empty.fire = function() {
if ( !hooks.unqueued ) {
oldfire();
}
};
}
hooks.unqueued++;
anim.always( function() {
// Ensure the complete handler is called before this completes
anim.always( function() {
hooks.unqueued--;
if ( !jQuery.queue( elem, "fx" ).length ) {
hooks.empty.fire();
}
} );
} );
}
// Detect show/hide animations
for ( prop in props ) {
value = props[ prop ];
if ( rfxtypes.test( value ) ) {
delete props[ prop ];
toggle = toggle || value === "toggle";
if ( value === ( hidden ? "hide" : "show" ) ) {
// Pretend to be hidden if this is a "show" and
// there is still data from a stopped show/hide
if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {
hidden = true;
// Ignore all other no-op show/hide data
} else {
continue;
}
}
orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );
}
}
// Bail out if this is a no-op like .hide().hide()
propTween = !jQuery.isEmptyObject( props );
if ( !propTween && jQuery.isEmptyObject( orig ) ) {
return;
}
// Restrict "overflow" and "display" styles during box animations
if ( isBox && elem.nodeType === 1 ) {
// Support: IE <=9 - 11, Edge 12 - 13
// Record all 3 overflow attributes because IE does not infer the shorthand
// from identically-valued overflowX and overflowY
opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];
// Identify a display type, preferring old show/hide data over the CSS cascade
restoreDisplay = dataShow && dataShow.display;
if ( restoreDisplay == null ) {
restoreDisplay = dataPriv.get( elem, "display" );
}
display = jQuery.css( elem, "display" );
if ( display === "none" ) {
if ( restoreDisplay ) {
display = restoreDisplay;
} else {
// Get nonempty value(s) by temporarily forcing visibility
showHide( [ elem ], true );
restoreDisplay = elem.style.display || restoreDisplay;
display = jQuery.css( elem, "display" );
showHide( [ elem ] );
}
}
// Animate inline elements as inline-block
if ( display === "inline" || display === "inline-block" && restoreDisplay != null ) {
if ( jQuery.css( elem, "float" ) === "none" ) {
// Restore the original display value at the end of pure show/hide animations
if ( !propTween ) {
anim.done( function() {
style.display = restoreDisplay;
} );
if ( restoreDisplay == null ) {
display = style.display;
restoreDisplay = display === "none" ? "" : display;
}
}
style.display = "inline-block";
}
}
}
if ( opts.overflow ) {
style.overflow = "hidden";
anim.always( function() {
style.overflow = opts.overflow[ 0 ];
style.overflowX = opts.overflow[ 1 ];
style.overflowY = opts.overflow[ 2 ];
} );
}
// Implement show/hide animations
propTween = false;
for ( prop in orig ) {
// General show/hide setup for this element animation
if ( !propTween ) {
if ( dataShow ) {
if ( "hidden" in dataShow ) {
hidden = dataShow.hidden;
}
} else {
dataShow = dataPriv.access( elem, "fxshow", { display: restoreDisplay } );
}
// Store hidden/visible for toggle so `.stop().toggle()` "reverses"
if ( toggle ) {
dataShow.hidden = !hidden;
}
// Show elements before animating them
if ( hidden ) {
showHide( [ elem ], true );
}
/* eslint-disable no-loop-func */
anim.done( function() {
/* eslint-enable no-loop-func */
// The final step of a "hide" animation is actually hiding the element
if ( !hidden ) {
showHide( [ elem ] );
}
dataPriv.remove( elem, "fxshow" );
for ( prop in orig ) {
jQuery.style( elem, prop, orig[ prop ] );
}
} );
}
// Per-property setup
propTween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );
if ( !( prop in dataShow ) ) {
dataShow[ prop ] = propTween.start;
if ( hidden ) {
propTween.end = propTween.start;
propTween.start = 0;
}
}
}
}
function propFilter( props, specialEasing ) {
var index, name, easing, value, hooks;
// camelCase, specialEasing and expand cssHook pass
for ( index in props ) {
name = jQuery.camelCase( index );
easing = specialEasing[ name ];
value = props[ index ];
if ( jQuery.isArray( value ) ) {
easing = value[ 1 ];
value = props[ index ] = value[ 0 ];
}
if ( index !== name ) {
props[ name ] = value;
delete props[ index ];
}
hooks = jQuery.cssHooks[ name ];
if ( hooks && "expand" in hooks ) {
value = hooks.expand( value );
delete props[ name ];
// Not quite $.extend, this won't overwrite existing keys.
// Reusing 'index' because we have the correct "name"
for ( index in value ) {
if ( !( index in props ) ) {
props[ index ] = value[ index ];
specialEasing[ index ] = easing;
}
}
} else {
specialEasing[ name ] = easing;
}
}
}
function Animation( elem, properties, options ) {
var result,
stopped,
index = 0,
length = Animation.prefilters.length,
deferred = jQuery.Deferred().always( function() {
// Don't match elem in the :animated selector
delete tick.elem;
} ),
tick = function() {
if ( stopped ) {
return false;
}
var currentTime = fxNow || createFxNow(),
remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),
// Support: Android 2.3 only
// Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497)
temp = remaining / animation.duration || 0,
percent = 1 - temp,
index = 0,
length = animation.tweens.length;
for ( ; index < length; index++ ) {
animation.tweens[ index ].run( percent );
}
deferred.notifyWith( elem, [ animation, percent, remaining ] );
if ( percent < 1 && length ) {
return remaining;
} else {
deferred.resolveWith( elem, [ animation ] );
return false;
}
},
animation = deferred.promise( {
elem: elem,
props: jQuery.extend( {}, properties ),
opts: jQuery.extend( true, {
specialEasing: {},
easing: jQuery.easing._default
}, options ),
originalProperties: properties,
originalOptions: options,
startTime: fxNow || createFxNow(),
duration: options.duration,
tweens: [],
createTween: function( prop, end ) {
var tween = jQuery.Tween( elem, animation.opts, prop, end,
animation.opts.specialEasing[ prop ] || animation.opts.easing );
animation.tweens.push( tween );
return tween;
},
stop: function( gotoEnd ) {
var index = 0,
// If we are going to the end, we want to run all the tweens
// otherwise we skip this part
length = gotoEnd ? animation.tweens.length : 0;
if ( stopped ) {
return this;
}
stopped = true;
for ( ; index < length; index++ ) {
animation.tweens[ index ].run( 1 );
}
// Resolve when we played the last frame; otherwise, reject
if ( gotoEnd ) {
deferred.notifyWith( elem, [ animation, 1, 0 ] );
deferred.resolveWith( elem, [ animation, gotoEnd ] );
} else {
deferred.rejectWith( elem, [ animation, gotoEnd ] );
}
return this;
}
} ),
props = animation.props;
propFilter( props, animation.opts.specialEasing );
for ( ; index < length; index++ ) {
result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts );
if ( result ) {
if ( jQuery.isFunction( result.stop ) ) {
jQuery._queueHooks( animation.elem, animation.opts.queue ).stop =
jQuery.proxy( result.stop, result );
}
return result;
}
}
jQuery.map( props, createTween, animation );
if ( jQuery.isFunction( animation.opts.start ) ) {
animation.opts.start.call( elem, animation );
}
jQuery.fx.timer(
jQuery.extend( tick, {
elem: elem,
anim: animation,
queue: animation.opts.queue
} )
);
// attach callbacks from options
return animation.progress( animation.opts.progress )
.done( animation.opts.done, animation.opts.complete )
.fail( animation.opts.fail )
.always( animation.opts.always );
}
jQuery.Animation = jQuery.extend( Animation, {
tweeners: {
"*": [ function( prop, value ) {
var tween = this.createTween( prop, value );
adjustCSS( tween.elem, prop, rcssNum.exec( value ), tween );
return tween;
} ]
},
tweener: function( props, callback ) {
if ( jQuery.isFunction( props ) ) {
callback = props;
props = [ "*" ];
} else {
props = props.match( rnotwhite );
}
var prop,
index = 0,
length = props.length;
for ( ; index < length; index++ ) {
prop = props[ index ];
Animation.tweeners[ prop ] = Animation.tweeners[ prop ] || [];
Animation.tweeners[ prop ].unshift( callback );
}
},
prefilters: [ defaultPrefilter ],
prefilter: function( callback, prepend ) {
if ( prepend ) {
Animation.prefilters.unshift( callback );
} else {
Animation.prefilters.push( callback );
}
}
} );
jQuery.speed = function( speed, easing, fn ) {
var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
complete: fn || !fn && easing ||
jQuery.isFunction( speed ) && speed,
duration: speed,
easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing
};
// Go to the end state if fx are off or if document is hidden
if ( jQuery.fx.off || document.hidden ) {
opt.duration = 0;
} else {
opt.duration = typeof opt.duration === "number" ?
opt.duration : opt.duration in jQuery.fx.speeds ?
jQuery.fx.speeds[ opt.duration ] : jQuery.fx.speeds._default;
}
// Normalize opt.queue - true/undefined/null -> "fx"
if ( opt.queue == null || opt.queue === true ) {
opt.queue = "fx";
}
// Queueing
opt.old = opt.complete;
opt.complete = function() {
if ( jQuery.isFunction( opt.old ) ) {
opt.old.call( this );
}
if ( opt.queue ) {
jQuery.dequeue( this, opt.queue );
}
};
return opt;
};
jQuery.fn.extend( {
fadeTo: function( speed, to, easing, callback ) {
// Show any hidden elements after setting opacity to 0
return this.filter( isHiddenWithinTree ).css( "opacity", 0 ).show()
// Animate to the value specified
.end().animate( { opacity: to }, speed, easing, callback );
},
animate: function( prop, speed, easing, callback ) {
var empty = jQuery.isEmptyObject( prop ),
optall = jQuery.speed( speed, easing, callback ),
doAnimation = function() {
// Operate on a copy of prop so per-property easing won't be lost
var anim = Animation( this, jQuery.extend( {}, prop ), optall );
// Empty animations, or finishing resolves immediately
if ( empty || dataPriv.get( this, "finish" ) ) {
anim.stop( true );
}
};
doAnimation.finish = doAnimation;
return empty || optall.queue === false ?
this.each( doAnimation ) :
this.queue( optall.queue, doAnimation );
},
stop: function( type, clearQueue, gotoEnd ) {
var stopQueue = function( hooks ) {
var stop = hooks.stop;
delete hooks.stop;
stop( gotoEnd );
};
if ( typeof type !== "string" ) {
gotoEnd = clearQueue;
clearQueue = type;
type = undefined;
}
if ( clearQueue && type !== false ) {
this.queue( type || "fx", [] );
}
return this.each( function() {
var dequeue = true,
index = type != null && type + "queueHooks",
timers = jQuery.timers,
data = dataPriv.get( this );
if ( index ) {
if ( data[ index ] && data[ index ].stop ) {
stopQueue( data[ index ] );
}
} else {
for ( index in data ) {
if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
stopQueue( data[ index ] );
}
}
}
for ( index = timers.length; index--; ) {
if ( timers[ index ].elem === this &&
( type == null || timers[ index ].queue === type ) ) {
timers[ index ].anim.stop( gotoEnd );
dequeue = false;
timers.splice( index, 1 );
}
}
// Start the next in the queue if the last step wasn't forced.
// Timers currently will call their complete callbacks, which
// will dequeue but only if they were gotoEnd.
if ( dequeue || !gotoEnd ) {
jQuery.dequeue( this, type );
}
} );
},
finish: function( type ) {
if ( type !== false ) {
type = type || "fx";
}
return this.each( function() {
var index,
data = dataPriv.get( this ),
queue = data[ type + "queue" ],
hooks = data[ type + "queueHooks" ],
timers = jQuery.timers,
length = queue ? queue.length : 0;
// Enable finishing flag on private data
data.finish = true;
// Empty the queue first
jQuery.queue( this, type, [] );
if ( hooks && hooks.stop ) {
hooks.stop.call( this, true );
}
// Look for any active animations, and finish them
for ( index = timers.length; index--; ) {
if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
timers[ index ].anim.stop( true );
timers.splice( index, 1 );
}
}
// Look for any animations in the old queue and finish them
for ( index = 0; index < length; index++ ) {
if ( queue[ index ] && queue[ index ].finish ) {
queue[ index ].finish.call( this );
}
}
// Turn off finishing flag
delete data.finish;
} );
}
} );
jQuery.each( [ "toggle", "show", "hide" ], function( i, name ) {
var cssFn = jQuery.fn[ name ];
jQuery.fn[ name ] = function( speed, easing, callback ) {
return speed == null || typeof speed === "boolean" ?
cssFn.apply( this, arguments ) :
this.animate( genFx( name, true ), speed, easing, callback );
};
} );
// Generate shortcuts for custom animations
jQuery.each( {
slideDown: genFx( "show" ),
slideUp: genFx( "hide" ),
slideToggle: genFx( "toggle" ),
fadeIn: { opacity: "show" },
fadeOut: { opacity: "hide" },
fadeToggle: { opacity: "toggle" }
}, function( name, props ) {
jQuery.fn[ name ] = function( speed, easing, callback ) {
return this.animate( props, speed, easing, callback );
};
} );
jQuery.timers = [];
jQuery.fx.tick = function() {
var timer,
i = 0,
timers = jQuery.timers;
fxNow = jQuery.now();
for ( ; i < timers.length; i++ ) {
timer = timers[ i ];
// Checks the timer has not already been removed
if ( !timer() && timers[ i ] === timer ) {
timers.splice( i--, 1 );
}
}
if ( !timers.length ) {
jQuery.fx.stop();
}
fxNow = undefined;
};
jQuery.fx.timer = function( timer ) {
jQuery.timers.push( timer );
if ( timer() ) {
jQuery.fx.start();
} else {
jQuery.timers.pop();
}
};
jQuery.fx.interval = 13;
jQuery.fx.start = function() {
if ( !timerId ) {
timerId = window.requestAnimationFrame ?
window.requestAnimationFrame( raf ) :
window.setInterval( jQuery.fx.tick, jQuery.fx.interval );
}
};
jQuery.fx.stop = function() {
if ( window.cancelAnimationFrame ) {
window.cancelAnimationFrame( timerId );
} else {
window.clearInterval( timerId );
}
timerId = null;
};
jQuery.fx.speeds = {
slow: 600,
fast: 200,
// Default speed
_default: 400
};
// Based off of the plugin by Clint Helfers, with permission.
// https://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/
jQuery.fn.delay = function( time, type ) {
time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
type = type || "fx";
return this.queue( type, function( next, hooks ) {
var timeout = window.setTimeout( next, time );
hooks.stop = function() {
window.clearTimeout( timeout );
};
} );
};
( function() {
var input = document.createElement( "input" ),
select = document.createElement( "select" ),
opt = select.appendChild( document.createElement( "option" ) );
input.type = "checkbox";
// Support: Android <=4.3 only
// Default value for a checkbox should be "on"
support.checkOn = input.value !== "";
// Support: IE <=11 only
// Must access selectedIndex to make default options select
support.optSelected = opt.selected;
// Support: IE <=11 only
// An input loses its value after becoming a radio
input = document.createElement( "input" );
input.value = "t";
input.type = "radio";
support.radioValue = input.value === "t";
} )();
var boolHook,
attrHandle = jQuery.expr.attrHandle;
jQuery.fn.extend( {
attr: function( name, value ) {
return access( this, jQuery.attr, name, value, arguments.length > 1 );
},
removeAttr: function( name ) {
return this.each( function() {
jQuery.removeAttr( this, name );
} );
}
} );
jQuery.extend( {
attr: function( elem, name, value ) {
var ret, hooks,
nType = elem.nodeType;
// Don't get/set attributes on text, comment and attribute nodes
if ( nType === 3 || nType === 8 || nType === 2 ) {
return;
}
// Fallback to prop when attributes are not supported
if ( typeof elem.getAttribute === "undefined" ) {
return jQuery.prop( elem, name, value );
}
// Attribute hooks are determined by the lowercase version
// Grab necessary hook if one is defined
if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
hooks = jQuery.attrHooks[ name.toLowerCase() ] ||
( jQuery.expr.match.bool.test( name ) ? boolHook : undefined );
}
if ( value !== undefined ) {
if ( value === null ) {
jQuery.removeAttr( elem, name );
return;
}
if ( hooks && "set" in hooks &&
( ret = hooks.set( elem, value, name ) ) !== undefined ) {
return ret;
}
elem.setAttribute( name, value + "" );
return value;
}
if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
return ret;
}
ret = jQuery.find.attr( elem, name );
// Non-existent attributes return null, we normalize to undefined
return ret == null ? undefined : ret;
},
attrHooks: {
type: {
set: function( elem, value ) {
if ( !support.radioValue && value === "radio" &&
jQuery.nodeName( elem, "input" ) ) {
var val = elem.value;
elem.setAttribute( "type", value );
if ( val ) {
elem.value = val;
}
return value;
}
}
}
},
removeAttr: function( elem, value ) {
var name,
i = 0,
attrNames = value && value.match( rnotwhite );
if ( attrNames && elem.nodeType === 1 ) {
while ( ( name = attrNames[ i++ ] ) ) {
elem.removeAttribute( name );
}
}
}
} );
// Hooks for boolean attributes
boolHook = {
set: function( elem, value, name ) {
if ( value === false ) {
// Remove boolean attributes when set to false
jQuery.removeAttr( elem, name );
} else {
elem.setAttribute( name, name );
}
return name;
}
};
jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) {
var getter = attrHandle[ name ] || jQuery.find.attr;
attrHandle[ name ] = function( elem, name, isXML ) {
var ret, handle,
lowercaseName = name.toLowerCase();
if ( !isXML ) {
// Avoid an infinite loop by temporarily removing this function from the getter
handle = attrHandle[ lowercaseName ];
attrHandle[ lowercaseName ] = ret;
ret = getter( elem, name, isXML ) != null ?
lowercaseName :
null;
attrHandle[ lowercaseName ] = handle;
}
return ret;
};
} );
var rfocusable = /^(?:input|select|textarea|button)$/i,
rclickable = /^(?:a|area)$/i;
jQuery.fn.extend( {
prop: function( name, value ) {
return access( this, jQuery.prop, name, value, arguments.length > 1 );
},
removeProp: function( name ) {
return this.each( function() {
delete this[ jQuery.propFix[ name ] || name ];
} );
}
} );
jQuery.extend( {
prop: function( elem, name, value ) {
var ret, hooks,
nType = elem.nodeType;
// Don't get/set properties on text, comment and attribute nodes
if ( nType === 3 || nType === 8 || nType === 2 ) {
return;
}
if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
// Fix name and attach hooks
name = jQuery.propFix[ name ] || name;
hooks = jQuery.propHooks[ name ];
}
if ( value !== undefined ) {
if ( hooks && "set" in hooks &&
( ret = hooks.set( elem, value, name ) ) !== undefined ) {
return ret;
}
return ( elem[ name ] = value );
}
if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
return ret;
}
return elem[ name ];
},
propHooks: {
tabIndex: {
get: function( elem ) {
// Support: IE <=9 - 11 only
// elem.tabIndex doesn't always return the
// correct value when it hasn't been explicitly set
// https://web.archive.org/web/20141116233347/http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
// Use proper attribute retrieval(#12072)
var tabindex = jQuery.find.attr( elem, "tabindex" );
return tabindex ?
parseInt( tabindex, 10 ) :
rfocusable.test( elem.nodeName ) ||
rclickable.test( elem.nodeName ) && elem.href ?
0 :
-1;
}
}
},
propFix: {
"for": "htmlFor",
"class": "className"
}
} );
// Support: IE <=11 only
// Accessing the selectedIndex property
// forces the browser to respect setting selected
// on the option
// The getter ensures a default option is selected
// when in an optgroup
if ( !support.optSelected ) {
jQuery.propHooks.selected = {
get: function( elem ) {
var parent = elem.parentNode;
if ( parent && parent.parentNode ) {
parent.parentNode.selectedIndex;
}
return null;
},
set: function( elem ) {
var parent = elem.parentNode;
if ( parent ) {
parent.selectedIndex;
if ( parent.parentNode ) {
parent.parentNode.selectedIndex;
}
}
}
};
}
jQuery.each( [
"tabIndex",
"readOnly",
"maxLength",
"cellSpacing",
"cellPadding",
"rowSpan",
"colSpan",
"useMap",
"frameBorder",
"contentEditable"
], function() {
jQuery.propFix[ this.toLowerCase() ] = this;
} );
var rclass = /[\t\r\n\f]/g;
function getClass( elem ) {
return elem.getAttribute && elem.getAttribute( "class" ) || "";
}
jQuery.fn.extend( {
addClass: function( value ) {
var classes, elem, cur, curValue, clazz, j, finalValue,
i = 0;
if ( jQuery.isFunction( value ) ) {
return this.each( function( j ) {
jQuery( this ).addClass( value.call( this, j, getClass( this ) ) );
} );
}
if ( typeof value === "string" && value ) {
classes = value.match( rnotwhite ) || [];
while ( ( elem = this[ i++ ] ) ) {
curValue = getClass( elem );
cur = elem.nodeType === 1 &&
( " " + curValue + " " ).replace( rclass, " " );
if ( cur ) {
j = 0;
while ( ( clazz = classes[ j++ ] ) ) {
if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
cur += clazz + " ";
}
}
// Only assign if different to avoid unneeded rendering.
finalValue = jQuery.trim( cur );
if ( curValue !== finalValue ) {
elem.setAttribute( "class", finalValue );
}
}
}
}
return this;
},
removeClass: function( value ) {
var classes, elem, cur, curValue, clazz, j, finalValue,
i = 0;
if ( jQuery.isFunction( value ) ) {
return this.each( function( j ) {
jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) );
} );
}
if ( !arguments.length ) {
return this.attr( "class", "" );
}
if ( typeof value === "string" && value ) {
classes = value.match( rnotwhite ) || [];
while ( ( elem = this[ i++ ] ) ) {
curValue = getClass( elem );
// This expression is here for better compressibility (see addClass)
cur = elem.nodeType === 1 &&
( " " + curValue + " " ).replace( rclass, " " );
if ( cur ) {
j = 0;
while ( ( clazz = classes[ j++ ] ) ) {
// Remove *all* instances
while ( cur.indexOf( " " + clazz + " " ) > -1 ) {
cur = cur.replace( " " + clazz + " ", " " );
}
}
// Only assign if different to avoid unneeded rendering.
finalValue = jQuery.trim( cur );
if ( curValue !== finalValue ) {
elem.setAttribute( "class", finalValue );
}
}
}
}
return this;
},
toggleClass: function( value, stateVal ) {
var type = typeof value;
if ( typeof stateVal === "boolean" && type === "string" ) {
return stateVal ? this.addClass( value ) : this.removeClass( value );
}
if ( jQuery.isFunction( value ) ) {
return this.each( function( i ) {
jQuery( this ).toggleClass(
value.call( this, i, getClass( this ), stateVal ),
stateVal
);
} );
}
return this.each( function() {
var className, i, self, classNames;
if ( type === "string" ) {
// Toggle individual class names
i = 0;
self = jQuery( this );
classNames = value.match( rnotwhite ) || [];
while ( ( className = classNames[ i++ ] ) ) {
// Check each className given, space separated list
if ( self.hasClass( className ) ) {
self.removeClass( className );
} else {
self.addClass( className );
}
}
// Toggle whole class name
} else if ( value === undefined || type === "boolean" ) {
className = getClass( this );
if ( className ) {
// Store className if set
dataPriv.set( this, "__className__", className );
}
// If the element has a class name or if we're passed `false`,
// then remove the whole classname (if there was one, the above saved it).
// Otherwise bring back whatever was previously saved (if anything),
// falling back to the empty string if nothing was stored.
if ( this.setAttribute ) {
this.setAttribute( "class",
className || value === false ?
"" :
dataPriv.get( this, "__className__" ) || ""
);
}
}
} );
},
hasClass: function( selector ) {
var className, elem,
i = 0;
className = " " + selector + " ";
while ( ( elem = this[ i++ ] ) ) {
if ( elem.nodeType === 1 &&
( " " + getClass( elem ) + " " ).replace( rclass, " " )
.indexOf( className ) > -1
) {
return true;
}
}
return false;
}
} );
var rreturn = /\r/g,
rspaces = /[\x20\t\r\n\f]+/g;
jQuery.fn.extend( {
val: function( value ) {
var hooks, ret, isFunction,
elem = this[ 0 ];
if ( !arguments.length ) {
if ( elem ) {
hooks = jQuery.valHooks[ elem.type ] ||
jQuery.valHooks[ elem.nodeName.toLowerCase() ];
if ( hooks &&
"get" in hooks &&
( ret = hooks.get( elem, "value" ) ) !== undefined
) {
return ret;
}
ret = elem.value;
return typeof ret === "string" ?
// Handle most common string cases
ret.replace( rreturn, "" ) :
// Handle cases where value is null/undef or number
ret == null ? "" : ret;
}
return;
}
isFunction = jQuery.isFunction( value );
return this.each( function( i ) {
var val;
if ( this.nodeType !== 1 ) {
return;
}
if ( isFunction ) {
val = value.call( this, i, jQuery( this ).val() );
} else {
val = value;
}
// Treat null/undefined as ""; convert numbers to string
if ( val == null ) {
val = "";
} else if ( typeof val === "number" ) {
val += "";
} else if ( jQuery.isArray( val ) ) {
val = jQuery.map( val, function( value ) {
return value == null ? "" : value + "";
} );
}
hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];
// If set returns undefined, fall back to normal setting
if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) {
this.value = val;
}
} );
}
} );
jQuery.extend( {
valHooks: {
option: {
get: function( elem ) {
var val = jQuery.find.attr( elem, "value" );
return val != null ?
val :
// Support: IE <=10 - 11 only
// option.text throws exceptions (#14686, #14858)
// Strip and collapse whitespace
// https://html.spec.whatwg.org/#strip-and-collapse-whitespace
jQuery.trim( jQuery.text( elem ) ).replace( rspaces, " " );
}
},
select: {
get: function( elem ) {
var value, option,
options = elem.options,
index = elem.selectedIndex,
one = elem.type === "select-one",
values = one ? null : [],
max = one ? index + 1 : options.length,
i = index < 0 ?
max :
one ? index : 0;
// Loop through all the selected options
for ( ; i < max; i++ ) {
option = options[ i ];
// Support: IE <=9 only
// IE8-9 doesn't update selected after form reset (#2551)
if ( ( option.selected || i === index ) &&
// Don't return options that are disabled or in a disabled optgroup
!option.disabled &&
( !option.parentNode.disabled ||
!jQuery.nodeName( option.parentNode, "optgroup" ) ) ) {
// Get the specific value for the option
value = jQuery( option ).val();
// We don't need an array for one selects
if ( one ) {
return value;
}
// Multi-Selects return an array
values.push( value );
}
}
return values;
},
set: function( elem, value ) {
var optionSet, option,
options = elem.options,
values = jQuery.makeArray( value ),
i = options.length;
while ( i-- ) {
option = options[ i ];
/* eslint-disable no-cond-assign */
if ( option.selected =
jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1
) {
optionSet = true;
}
/* eslint-enable no-cond-assign */
}
// Force browsers to behave consistently when non-matching value is set
if ( !optionSet ) {
elem.selectedIndex = -1;
}
return values;
}
}
}
} );
// Radios and checkboxes getter/setter
jQuery.each( [ "radio", "checkbox" ], function() {
jQuery.valHooks[ this ] = {
set: function( elem, value ) {
if ( jQuery.isArray( value ) ) {
return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 );
}
}
};
if ( !support.checkOn ) {
jQuery.valHooks[ this ].get = function( elem ) {
return elem.getAttribute( "value" ) === null ? "on" : elem.value;
};
}
} );
// Return jQuery for attributes-only inclusion
var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/;
jQuery.extend( jQuery.event, {
trigger: function( event, data, elem, onlyHandlers ) {
var i, cur, tmp, bubbleType, ontype, handle, special,
eventPath = [ elem || document ],
type = hasOwn.call( event, "type" ) ? event.type : event,
namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : [];
cur = tmp = elem = elem || document;
// Don't do events on text and comment nodes
if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
return;
}
// focus/blur morphs to focusin/out; ensure we're not firing them right now
if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
return;
}
if ( type.indexOf( "." ) > -1 ) {
// Namespaced trigger; create a regexp to match event type in handle()
namespaces = type.split( "." );
type = namespaces.shift();
namespaces.sort();
}
ontype = type.indexOf( ":" ) < 0 && "on" + type;
// Caller can pass in a jQuery.Event object, Object, or just an event type string
event = event[ jQuery.expando ] ?
event :
new jQuery.Event( type, typeof event === "object" && event );
// Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
event.isTrigger = onlyHandlers ? 2 : 3;
event.namespace = namespaces.join( "." );
event.rnamespace = event.namespace ?
new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) :
null;
// Clean up the event in case it is being reused
event.result = undefined;
if ( !event.target ) {
event.target = elem;
}
// Clone any incoming data and prepend the event, creating the handler arg list
data = data == null ?
[ event ] :
jQuery.makeArray( data, [ event ] );
// Allow special events to draw outside the lines
special = jQuery.event.special[ type ] || {};
if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
return;
}
// Determine event propagation path in advance, per W3C events spec (#9951)
// Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) {
bubbleType = special.delegateType || type;
if ( !rfocusMorph.test( bubbleType + type ) ) {
cur = cur.parentNode;
}
for ( ; cur; cur = cur.parentNode ) {
eventPath.push( cur );
tmp = cur;
}
// Only add window if we got to document (e.g., not plain obj or detached DOM)
if ( tmp === ( elem.ownerDocument || document ) ) {
eventPath.push( tmp.defaultView || tmp.parentWindow || window );
}
}
// Fire handlers on the event path
i = 0;
while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) {
event.type = i > 1 ?
bubbleType :
special.bindType || type;
// jQuery handler
handle = ( dataPriv.get( cur, "events" ) || {} )[ event.type ] &&
dataPriv.get( cur, "handle" );
if ( handle ) {
handle.apply( cur, data );
}
// Native handler
handle = ontype && cur[ ontype ];
if ( handle && handle.apply && acceptData( cur ) ) {
event.result = handle.apply( cur, data );
if ( event.result === false ) {
event.preventDefault();
}
}
}
event.type = type;
// If nobody prevented the default action, do it now
if ( !onlyHandlers && !event.isDefaultPrevented() ) {
if ( ( !special._default ||
special._default.apply( eventPath.pop(), data ) === false ) &&
acceptData( elem ) ) {
// Call a native DOM method on the target with the same name as the event.
// Don't do default actions on window, that's where global variables be (#6170)
if ( ontype && jQuery.isFunction( elem[ type ] ) && !jQuery.isWindow( elem ) ) {
// Don't re-trigger an onFOO event when we call its FOO() method
tmp = elem[ ontype ];
if ( tmp ) {
elem[ ontype ] = null;
}
// Prevent re-triggering of the same event, since we already bubbled it above
jQuery.event.triggered = type;
elem[ type ]();
jQuery.event.triggered = undefined;
if ( tmp ) {
elem[ ontype ] = tmp;
}
}
}
}
return event.result;
},
// Piggyback on a donor event to simulate a different one
// Used only for `focus(in | out)` events
simulate: function( type, elem, event ) {
var e = jQuery.extend(
new jQuery.Event(),
event,
{
type: type,
isSimulated: true
}
);
jQuery.event.trigger( e, null, elem );
}
} );
jQuery.fn.extend( {
trigger: function( type, data ) {
return this.each( function() {
jQuery.event.trigger( type, data, this );
} );
},
triggerHandler: function( type, data ) {
var elem = this[ 0 ];
if ( elem ) {
return jQuery.event.trigger( type, data, elem, true );
}
}
} );
jQuery.each( ( "blur focus focusin focusout resize scroll click dblclick " +
"mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
"change select submit keydown keypress keyup contextmenu" ).split( " " ),
function( i, name ) {
// Handle event binding
jQuery.fn[ name ] = function( data, fn ) {
return arguments.length > 0 ?
this.on( name, null, data, fn ) :
this.trigger( name );
};
} );
jQuery.fn.extend( {
hover: function( fnOver, fnOut ) {
return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
}
} );
support.focusin = "onfocusin" in window;
// Support: Firefox <=44
// Firefox doesn't have focus(in | out) events
// Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787
//
// Support: Chrome <=48 - 49, Safari <=9.0 - 9.1
// focus(in | out) events fire after focus & blur events,
// which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order
// Related ticket - https://bugs.chromium.org/p/chromium/issues/detail?id=449857
if ( !support.focusin ) {
jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) {
// Attach a single capturing handler on the document while someone wants focusin/focusout
var handler = function( event ) {
jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) );
};
jQuery.event.special[ fix ] = {
setup: function() {
var doc = this.ownerDocument || this,
attaches = dataPriv.access( doc, fix );
if ( !attaches ) {
doc.addEventListener( orig, handler, true );
}
dataPriv.access( doc, fix, ( attaches || 0 ) + 1 );
},
teardown: function() {
var doc = this.ownerDocument || this,
attaches = dataPriv.access( doc, fix ) - 1;
if ( !attaches ) {
doc.removeEventListener( orig, handler, true );
dataPriv.remove( doc, fix );
} else {
dataPriv.access( doc, fix, attaches );
}
}
};
} );
}
var location = window.location;
var nonce = jQuery.now();
var rquery = ( /\?/ );
// Cross-browser xml parsing
jQuery.parseXML = function( data ) {
var xml;
if ( !data || typeof data !== "string" ) {
return null;
}
// Support: IE 9 - 11 only
// IE throws on parseFromString with invalid input.
try {
xml = ( new window.DOMParser() ).parseFromString( data, "text/xml" );
} catch ( e ) {
xml = undefined;
}
if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) {
jQuery.error( "Invalid XML: " + data );
}
return xml;
};
var
rbracket = /\[\]$/,
rCRLF = /\r?\n/g,
rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
rsubmittable = /^(?:input|select|textarea|keygen)/i;
function buildParams( prefix, obj, traditional, add ) {
var name;
if ( jQuery.isArray( obj ) ) {
// Serialize array item.
jQuery.each( obj, function( i, v ) {
if ( traditional || rbracket.test( prefix ) ) {
// Treat each array item as a scalar.
add( prefix, v );
} else {
// Item is non-scalar (array or object), encode its numeric index.
buildParams(
prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]",
v,
traditional,
add
);
}
} );
} else if ( !traditional && jQuery.type( obj ) === "object" ) {
// Serialize object item.
for ( name in obj ) {
buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
}
} else {
// Serialize scalar item.
add( prefix, obj );
}
}
// Serialize an array of form elements or a set of
// key/values into a query string
jQuery.param = function( a, traditional ) {
var prefix,
s = [],
add = function( key, valueOrFunction ) {
// If value is a function, invoke it and use its return value
var value = jQuery.isFunction( valueOrFunction ) ?
valueOrFunction() :
valueOrFunction;
s[ s.length ] = encodeURIComponent( key ) + "=" +
encodeURIComponent( value == null ? "" : value );
};
// If an array was passed in, assume that it is an array of form elements.
if ( jQuery.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {
// Serialize the form elements
jQuery.each( a, function() {
add( this.name, this.value );
} );
} else {
// If traditional, encode the "old" way (the way 1.3.2 or older
// did it), otherwise encode params recursively.
for ( prefix in a ) {
buildParams( prefix, a[ prefix ], traditional, add );
}
}
// Return the resulting serialization
return s.join( "&" );
};
jQuery.fn.extend( {
serialize: function() {
return jQuery.param( this.serializeArray() );
},
serializeArray: function() {
return this.map( function() {
// Can add propHook for "elements" to filter or add form elements
var elements = jQuery.prop( this, "elements" );
return elements ? jQuery.makeArray( elements ) : this;
} )
.filter( function() {
var type = this.type;
// Use .is( ":disabled" ) so that fieldset[disabled] works
return this.name && !jQuery( this ).is( ":disabled" ) &&
rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
( this.checked || !rcheckableType.test( type ) );
} )
.map( function( i, elem ) {
var val = jQuery( this ).val();
return val == null ?
null :
jQuery.isArray( val ) ?
jQuery.map( val, function( val ) {
return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
} ) :
{ name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
} ).get();
}
} );
var
r20 = /%20/g,
rhash = /#.*$/,
rts = /([?&])_=[^&]*/,
rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,
// #7653, #8125, #8152: local protocol detection
rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
rnoContent = /^(?:GET|HEAD)$/,
rprotocol = /^\/\//,
/* Prefilters
* 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
* 2) These are called:
* - BEFORE asking for a transport
* - AFTER param serialization (s.data is a string if s.processData is true)
* 3) key is the dataType
* 4) the catchall symbol "*" can be used
* 5) execution will start with transport dataType and THEN continue down to "*" if needed
*/
prefilters = {},
/* Transports bindings
* 1) key is the dataType
* 2) the catchall symbol "*" can be used
* 3) selection will start with transport dataType and THEN go to "*" if needed
*/
transports = {},
// Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
allTypes = "*/".concat( "*" ),
// Anchor tag for parsing the document origin
originAnchor = document.createElement( "a" );
originAnchor.href = location.href;
// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
function addToPrefiltersOrTransports( structure ) {
// dataTypeExpression is optional and defaults to "*"
return function( dataTypeExpression, func ) {
if ( typeof dataTypeExpression !== "string" ) {
func = dataTypeExpression;
dataTypeExpression = "*";
}
var dataType,
i = 0,
dataTypes = dataTypeExpression.toLowerCase().match( rnotwhite ) || [];
if ( jQuery.isFunction( func ) ) {
// For each dataType in the dataTypeExpression
while ( ( dataType = dataTypes[ i++ ] ) ) {
// Prepend if requested
if ( dataType[ 0 ] === "+" ) {
dataType = dataType.slice( 1 ) || "*";
( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func );
// Otherwise append
} else {
( structure[ dataType ] = structure[ dataType ] || [] ).push( func );
}
}
}
};
}
// Base inspection function for prefilters and transports
function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {
var inspected = {},
seekingTransport = ( structure === transports );
function inspect( dataType ) {
var selected;
inspected[ dataType ] = true;
jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
if ( typeof dataTypeOrTransport === "string" &&
!seekingTransport && !inspected[ dataTypeOrTransport ] ) {
options.dataTypes.unshift( dataTypeOrTransport );
inspect( dataTypeOrTransport );
return false;
} else if ( seekingTransport ) {
return !( selected = dataTypeOrTransport );
}
} );
return selected;
}
return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
}
// A special extend for ajax options
// that takes "flat" options (not to be deep extended)
// Fixes #9887
function ajaxExtend( target, src ) {
var key, deep,
flatOptions = jQuery.ajaxSettings.flatOptions || {};
for ( key in src ) {
if ( src[ key ] !== undefined ) {
( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ];
}
}
if ( deep ) {
jQuery.extend( true, target, deep );
}
return target;
}
/* Handles responses to an ajax request:
* - finds the right dataType (mediates between content-type and expected dataType)
* - returns the corresponding response
*/
function ajaxHandleResponses( s, jqXHR, responses ) {
var ct, type, finalDataType, firstDataType,
contents = s.contents,
dataTypes = s.dataTypes;
// Remove auto dataType and get content-type in the process
while ( dataTypes[ 0 ] === "*" ) {
dataTypes.shift();
if ( ct === undefined ) {
ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" );
}
}
// Check if we're dealing with a known content-type
if ( ct ) {
for ( type in contents ) {
if ( contents[ type ] && contents[ type ].test( ct ) ) {
dataTypes.unshift( type );
break;
}
}
}
// Check to see if we have a response for the expected dataType
if ( dataTypes[ 0 ] in responses ) {
finalDataType = dataTypes[ 0 ];
} else {
// Try convertible dataTypes
for ( type in responses ) {
if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) {
finalDataType = type;
break;
}
if ( !firstDataType ) {
firstDataType = type;
}
}
// Or just use first one
finalDataType = finalDataType || firstDataType;
}
// If we found a dataType
// We add the dataType to the list if needed
// and return the corresponding response
if ( finalDataType ) {
if ( finalDataType !== dataTypes[ 0 ] ) {
dataTypes.unshift( finalDataType );
}
return responses[ finalDataType ];
}
}
/* Chain conversions given the request and the original response
* Also sets the responseXXX fields on the jqXHR instance
*/
function ajaxConvert( s, response, jqXHR, isSuccess ) {
var conv2, current, conv, tmp, prev,
converters = {},
// Work with a copy of dataTypes in case we need to modify it for conversion
dataTypes = s.dataTypes.slice();
// Create converters map with lowercased keys
if ( dataTypes[ 1 ] ) {
for ( conv in s.converters ) {
converters[ conv.toLowerCase() ] = s.converters[ conv ];
}
}
current = dataTypes.shift();
// Convert to each sequential dataType
while ( current ) {
if ( s.responseFields[ current ] ) {
jqXHR[ s.responseFields[ current ] ] = response;
}
// Apply the dataFilter if provided
if ( !prev && isSuccess && s.dataFilter ) {
response = s.dataFilter( response, s.dataType );
}
prev = current;
current = dataTypes.shift();
if ( current ) {
// There's only work to do if current dataType is non-auto
if ( current === "*" ) {
current = prev;
// Convert response if prev dataType is non-auto and differs from current
} else if ( prev !== "*" && prev !== current ) {
// Seek a direct converter
conv = converters[ prev + " " + current ] || converters[ "* " + current ];
// If none found, seek a pair
if ( !conv ) {
for ( conv2 in converters ) {
// If conv2 outputs current
tmp = conv2.split( " " );
if ( tmp[ 1 ] === current ) {
// If prev can be converted to accepted input
conv = converters[ prev + " " + tmp[ 0 ] ] ||
converters[ "* " + tmp[ 0 ] ];
if ( conv ) {
// Condense equivalence converters
if ( conv === true ) {
conv = converters[ conv2 ];
// Otherwise, insert the intermediate dataType
} else if ( converters[ conv2 ] !== true ) {
current = tmp[ 0 ];
dataTypes.unshift( tmp[ 1 ] );
}
break;
}
}
}
}
// Apply converter (if not an equivalence)
if ( conv !== true ) {
// Unless errors are allowed to bubble, catch and return them
if ( conv && s.throws ) {
response = conv( response );
} else {
try {
response = conv( response );
} catch ( e ) {
return {
state: "parsererror",
error: conv ? e : "No conversion from " + prev + " to " + current
};
}
}
}
}
}
}
return { state: "success", data: response };
}
jQuery.extend( {
// Counter for holding the number of active queries
active: 0,
// Last-Modified header cache for next request
lastModified: {},
etag: {},
ajaxSettings: {
url: location.href,
type: "GET",
isLocal: rlocalProtocol.test( location.protocol ),
global: true,
processData: true,
async: true,
contentType: "application/x-www-form-urlencoded; charset=UTF-8",
/*
timeout: 0,
data: null,
dataType: null,
username: null,
password: null,
cache: null,
throws: false,
traditional: false,
headers: {},
*/
accepts: {
"*": allTypes,
text: "text/plain",
html: "text/html",
xml: "application/xml, text/xml",
json: "application/json, text/javascript"
},
contents: {
xml: /\bxml\b/,
html: /\bhtml/,
json: /\bjson\b/
},
responseFields: {
xml: "responseXML",
text: "responseText",
json: "responseJSON"
},
// Data converters
// Keys separate source (or catchall "*") and destination types with a single space
converters: {
// Convert anything to text
"* text": String,
// Text to html (true = no transformation)
"text html": true,
// Evaluate text as a json expression
"text json": JSON.parse,
// Parse text as xml
"text xml": jQuery.parseXML
},
// For options that shouldn't be deep extended:
// you can add your own custom options here if
// and when you create one that shouldn't be
// deep extended (see ajaxExtend)
flatOptions: {
url: true,
context: true
}
},
// Creates a full fledged settings object into target
// with both ajaxSettings and settings fields.
// If target is omitted, writes into ajaxSettings.
ajaxSetup: function( target, settings ) {
return settings ?
// Building a settings object
ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :
// Extending ajaxSettings
ajaxExtend( jQuery.ajaxSettings, target );
},
ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
ajaxTransport: addToPrefiltersOrTransports( transports ),
// Main method
ajax: function( url, options ) {
// If url is an object, simulate pre-1.5 signature
if ( typeof url === "object" ) {
options = url;
url = undefined;
}
// Force options to be an object
options = options || {};
var transport,
// URL without anti-cache param
cacheURL,
// Response headers
responseHeadersString,
responseHeaders,
// timeout handle
timeoutTimer,
// Url cleanup var
urlAnchor,
// Request state (becomes false upon send and true upon completion)
completed,
// To know if global events are to be dispatched
fireGlobals,
// Loop variable
i,
// uncached part of the url
uncached,
// Create the final options object
s = jQuery.ajaxSetup( {}, options ),
// Callbacks context
callbackContext = s.context || s,
// Context for global events is callbackContext if it is a DOM node or jQuery collection
globalEventContext = s.context &&
( callbackContext.nodeType || callbackContext.jquery ) ?
jQuery( callbackContext ) :
jQuery.event,
// Deferreds
deferred = jQuery.Deferred(),
completeDeferred = jQuery.Callbacks( "once memory" ),
// Status-dependent callbacks
statusCode = s.statusCode || {},
// Headers (they are sent all at once)
requestHeaders = {},
requestHeadersNames = {},
// Default abort message
strAbort = "canceled",
// Fake xhr
jqXHR = {
readyState: 0,
// Builds headers hashtable if needed
getResponseHeader: function( key ) {
var match;
if ( completed ) {
if ( !responseHeaders ) {
responseHeaders = {};
while ( ( match = rheaders.exec( responseHeadersString ) ) ) {
responseHeaders[ match[ 1 ].toLowerCase() ] = match[ 2 ];
}
}
match = responseHeaders[ key.toLowerCase() ];
}
return match == null ? null : match;
},
// Raw string
getAllResponseHeaders: function() {
return completed ? responseHeadersString : null;
},
// Caches the header
setRequestHeader: function( name, value ) {
if ( completed == null ) {
name = requestHeadersNames[ name.toLowerCase() ] =
requestHeadersNames[ name.toLowerCase() ] || name;
requestHeaders[ name ] = value;
}
return this;
},
// Overrides response content-type header
overrideMimeType: function( type ) {
if ( completed == null ) {
s.mimeType = type;
}
return this;
},
// Status-dependent callbacks
statusCode: function( map ) {
var code;
if ( map ) {
if ( completed ) {
// Execute the appropriate callbacks
jqXHR.always( map[ jqXHR.status ] );
} else {
// Lazy-add the new callbacks in a way that preserves old ones
for ( code in map ) {
statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
}
}
}
return this;
},
// Cancel the request
abort: function( statusText ) {
var finalText = statusText || strAbort;
if ( transport ) {
transport.abort( finalText );
}
done( 0, finalText );
return this;
}
};
// Attach deferreds
deferred.promise( jqXHR );
// Add protocol if not provided (prefilters might expect it)
// Handle falsy url in the settings object (#10093: consistency with old signature)
// We also use the url parameter if available
s.url = ( ( url || s.url || location.href ) + "" )
.replace( rprotocol, location.protocol + "//" );
// Alias method option to type as per ticket #12004
s.type = options.method || options.type || s.method || s.type;
// Extract dataTypes list
s.dataTypes = ( s.dataType || "*" ).toLowerCase().match( rnotwhite ) || [ "" ];
// A cross-domain request is in order when the origin doesn't match the current origin.
if ( s.crossDomain == null ) {
urlAnchor = document.createElement( "a" );
// Support: IE <=8 - 11, Edge 12 - 13
// IE throws exception on accessing the href property if url is malformed,
// e.g. http://example.com:80x/
try {
urlAnchor.href = s.url;
// Support: IE <=8 - 11 only
// Anchor's host property isn't correctly set when s.url is relative
urlAnchor.href = urlAnchor.href;
s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !==
urlAnchor.protocol + "//" + urlAnchor.host;
} catch ( e ) {
// If there is an error parsing the URL, assume it is crossDomain,
// it can be rejected by the transport if it is invalid
s.crossDomain = true;
}
}
// Convert data if not already a string
if ( s.data && s.processData && typeof s.data !== "string" ) {
s.data = jQuery.param( s.data, s.traditional );
}
// Apply prefilters
inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );
// If request was aborted inside a prefilter, stop there
if ( completed ) {
return jqXHR;
}
// We can fire global events as of now if asked to
// Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118)
fireGlobals = jQuery.event && s.global;
// Watch for a new set of requests
if ( fireGlobals && jQuery.active++ === 0 ) {
jQuery.event.trigger( "ajaxStart" );
}
// Uppercase the type
s.type = s.type.toUpperCase();
// Determine if request has content
s.hasContent = !rnoContent.test( s.type );
// Save the URL in case we're toying with the If-Modified-Since
// and/or If-None-Match header later on
// Remove hash to simplify url manipulation
cacheURL = s.url.replace( rhash, "" );
// More options handling for requests with no content
if ( !s.hasContent ) {
// Remember the hash so we can put it back
uncached = s.url.slice( cacheURL.length );
// If data is available, append data to url
if ( s.data ) {
cacheURL += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data;
// #9682: remove data so that it's not used in an eventual retry
delete s.data;
}
// Add anti-cache in uncached url if needed
if ( s.cache === false ) {
cacheURL = cacheURL.replace( rts, "" );
uncached = ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ( nonce++ ) + uncached;
}
// Put hash and anti-cache on the URL that will be requested (gh-1732)
s.url = cacheURL + uncached;
// Change '%20' to '+' if this is encoded form body content (gh-2658)
} else if ( s.data && s.processData &&
( s.contentType || "" ).indexOf( "application/x-www-form-urlencoded" ) === 0 ) {
s.data = s.data.replace( r20, "+" );
}
// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
if ( s.ifModified ) {
if ( jQuery.lastModified[ cacheURL ] ) {
jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
}
if ( jQuery.etag[ cacheURL ] ) {
jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
}
}
// Set the correct header, if data is being sent
if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
jqXHR.setRequestHeader( "Content-Type", s.contentType );
}
// Set the Accepts header for the server, depending on the dataType
jqXHR.setRequestHeader(
"Accept",
s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ?
s.accepts[ s.dataTypes[ 0 ] ] +
( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
s.accepts[ "*" ]
);
// Check for headers option
for ( i in s.headers ) {
jqXHR.setRequestHeader( i, s.headers[ i ] );
}
// Allow custom headers/mimetypes and early abort
if ( s.beforeSend &&
( s.beforeSend.call( callbackContext, jqXHR, s ) === false || completed ) ) {
// Abort if not done already and return
return jqXHR.abort();
}
// Aborting is no longer a cancellation
strAbort = "abort";
// Install callbacks on deferreds
completeDeferred.add( s.complete );
jqXHR.done( s.success );
jqXHR.fail( s.error );
// Get transport
transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );
// If no transport, we auto-abort
if ( !transport ) {
done( -1, "No Transport" );
} else {
jqXHR.readyState = 1;
// Send global event
if ( fireGlobals ) {
globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
}
// If request was aborted inside ajaxSend, stop there
if ( completed ) {
return jqXHR;
}
// Timeout
if ( s.async && s.timeout > 0 ) {
timeoutTimer = window.setTimeout( function() {
jqXHR.abort( "timeout" );
}, s.timeout );
}
try {
completed = false;
transport.send( requestHeaders, done );
} catch ( e ) {
// Rethrow post-completion exceptions
if ( completed ) {
throw e;
}
// Propagate others as results
done( -1, e );
}
}
// Callback for when everything is done
function done( status, nativeStatusText, responses, headers ) {
var isSuccess, success, error, response, modified,
statusText = nativeStatusText;
// Ignore repeat invocations
if ( completed ) {
return;
}
completed = true;
// Clear timeout if it exists
if ( timeoutTimer ) {
window.clearTimeout( timeoutTimer );
}
// Dereference transport for early garbage collection
// (no matter how long the jqXHR object will be used)
transport = undefined;
// Cache response headers
responseHeadersString = headers || "";
// Set readyState
jqXHR.readyState = status > 0 ? 4 : 0;
// Determine if successful
isSuccess = status >= 200 && status < 300 || status === 304;
// Get response data
if ( responses ) {
response = ajaxHandleResponses( s, jqXHR, responses );
}
// Convert no matter what (that way responseXXX fields are always set)
response = ajaxConvert( s, response, jqXHR, isSuccess );
// If successful, handle type chaining
if ( isSuccess ) {
// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
if ( s.ifModified ) {
modified = jqXHR.getResponseHeader( "Last-Modified" );
if ( modified ) {
jQuery.lastModified[ cacheURL ] = modified;
}
modified = jqXHR.getResponseHeader( "etag" );
if ( modified ) {
jQuery.etag[ cacheURL ] = modified;
}
}
// if no content
if ( status === 204 || s.type === "HEAD" ) {
statusText = "nocontent";
// if not modified
} else if ( status === 304 ) {
statusText = "notmodified";
// If we have data, let's convert it
} else {
statusText = response.state;
success = response.data;
error = response.error;
isSuccess = !error;
}
} else {
// Extract error from statusText and normalize for non-aborts
error = statusText;
if ( status || !statusText ) {
statusText = "error";
if ( status < 0 ) {
status = 0;
}
}
}
// Set data for the fake xhr object
jqXHR.status = status;
jqXHR.statusText = ( nativeStatusText || statusText ) + "";
// Success/Error
if ( isSuccess ) {
deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
} else {
deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
}
// Status-dependent callbacks
jqXHR.statusCode( statusCode );
statusCode = undefined;
if ( fireGlobals ) {
globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
[ jqXHR, s, isSuccess ? success : error ] );
}
// Complete
completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );
if ( fireGlobals ) {
globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );
// Handle the global AJAX counter
if ( !( --jQuery.active ) ) {
jQuery.event.trigger( "ajaxStop" );
}
}
}
return jqXHR;
},
getJSON: function( url, data, callback ) {
return jQuery.get( url, data, callback, "json" );
},
getScript: function( url, callback ) {
return jQuery.get( url, undefined, callback, "script" );
}
} );
jQuery.each( [ "get", "post" ], function( i, method ) {
jQuery[ method ] = function( url, data, callback, type ) {
// Shift arguments if data argument was omitted
if ( jQuery.isFunction( data ) ) {
type = type || callback;
callback = data;
data = undefined;
}
// The url can be an options object (which then must have .url)
return jQuery.ajax( jQuery.extend( {
url: url,
type: method,
dataType: type,
data: data,
success: callback
}, jQuery.isPlainObject( url ) && url ) );
};
} );
jQuery._evalUrl = function( url ) {
return jQuery.ajax( {
url: url,
// Make this explicit, since user can override this through ajaxSetup (#11264)
type: "GET",
dataType: "script",
cache: true,
async: false,
global: false,
"throws": true
} );
};
jQuery.fn.extend( {
wrapAll: function( html ) {
var wrap;
if ( this[ 0 ] ) {
if ( jQuery.isFunction( html ) ) {
html = html.call( this[ 0 ] );
}
// The elements to wrap the target around
wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );
if ( this[ 0 ].parentNode ) {
wrap.insertBefore( this[ 0 ] );
}
wrap.map( function() {
var elem = this;
while ( elem.firstElementChild ) {
elem = elem.firstElementChild;
}
return elem;
} ).append( this );
}
return this;
},
wrapInner: function( html ) {
if ( jQuery.isFunction( html ) ) {
return this.each( function( i ) {
jQuery( this ).wrapInner( html.call( this, i ) );
} );
}
return this.each( function() {
var self = jQuery( this ),
contents = self.contents();
if ( contents.length ) {
contents.wrapAll( html );
} else {
self.append( html );
}
} );
},
wrap: function( html ) {
var isFunction = jQuery.isFunction( html );
return this.each( function( i ) {
jQuery( this ).wrapAll( isFunction ? html.call( this, i ) : html );
} );
},
unwrap: function( selector ) {
this.parent( selector ).not( "body" ).each( function() {
jQuery( this ).replaceWith( this.childNodes );
} );
return this;
}
} );
jQuery.expr.pseudos.hidden = function( elem ) {
return !jQuery.expr.pseudos.visible( elem );
};
jQuery.expr.pseudos.visible = function( elem ) {
return !!( elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length );
};
jQuery.ajaxSettings.xhr = function() {
try {
return new window.XMLHttpRequest();
} catch ( e ) {}
};
var xhrSuccessStatus = {
// File protocol always yields status code 0, assume 200
0: 200,
// Support: IE <=9 only
// #1450: sometimes IE returns 1223 when it should be 204
1223: 204
},
xhrSupported = jQuery.ajaxSettings.xhr();
support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
support.ajax = xhrSupported = !!xhrSupported;
jQuery.ajaxTransport( function( options ) {
var callback, errorCallback;
// Cross domain only allowed if supported through XMLHttpRequest
if ( support.cors || xhrSupported && !options.crossDomain ) {
return {
send: function( headers, complete ) {
var i,
xhr = options.xhr();
xhr.open(
options.type,
options.url,
options.async,
options.username,
options.password
);
// Apply custom fields if provided
if ( options.xhrFields ) {
for ( i in options.xhrFields ) {
xhr[ i ] = options.xhrFields[ i ];
}
}
// Override mime type if needed
if ( options.mimeType && xhr.overrideMimeType ) {
xhr.overrideMimeType( options.mimeType );
}
// X-Requested-With header
// For cross-domain requests, seeing as conditions for a preflight are
// akin to a jigsaw puzzle, we simply never set it to be sure.
// (it can always be set on a per-request basis or even using ajaxSetup)
// For same-domain requests, won't change header if already provided.
if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) {
headers[ "X-Requested-With" ] = "XMLHttpRequest";
}
// Set headers
for ( i in headers ) {
xhr.setRequestHeader( i, headers[ i ] );
}
// Callback
callback = function( type ) {
return function() {
if ( callback ) {
callback = errorCallback = xhr.onload =
xhr.onerror = xhr.onabort = xhr.onreadystatechange = null;
if ( type === "abort" ) {
xhr.abort();
} else if ( type === "error" ) {
// Support: IE <=9 only
// On a manual native abort, IE9 throws
// errors on any property access that is not readyState
if ( typeof xhr.status !== "number" ) {
complete( 0, "error" );
} else {
complete(
// File: protocol always yields status 0; see #8605, #14207
xhr.status,
xhr.statusText
);
}
} else {
complete(
xhrSuccessStatus[ xhr.status ] || xhr.status,
xhr.statusText,
// Support: IE <=9 only
// IE9 has no XHR2 but throws on binary (trac-11426)
// For XHR2 non-text, let the caller handle it (gh-2498)
( xhr.responseType || "text" ) !== "text" ||
typeof xhr.responseText !== "string" ?
{ binary: xhr.response } :
{ text: xhr.responseText },
xhr.getAllResponseHeaders()
);
}
}
};
};
// Listen to events
xhr.onload = callback();
errorCallback = xhr.onerror = callback( "error" );
// Support: IE 9 only
// Use onreadystatechange to replace onabort
// to handle uncaught aborts
if ( xhr.onabort !== undefined ) {
xhr.onabort = errorCallback;
} else {
xhr.onreadystatechange = function() {
// Check readyState before timeout as it changes
if ( xhr.readyState === 4 ) {
// Allow onerror to be called first,
// but that will not handle a native abort
// Also, save errorCallback to a variable
// as xhr.onerror cannot be accessed
window.setTimeout( function() {
if ( callback ) {
errorCallback();
}
} );
}
};
}
// Create the abort callback
callback = callback( "abort" );
try {
// Do send the request (this may raise an exception)
xhr.send( options.hasContent && options.data || null );
} catch ( e ) {
// #14683: Only rethrow if this hasn't been notified as an error yet
if ( callback ) {
throw e;
}
}
},
abort: function() {
if ( callback ) {
callback();
}
}
};
}
} );
// Prevent auto-execution of scripts when no explicit dataType was provided (See gh-2432)
jQuery.ajaxPrefilter( function( s ) {
if ( s.crossDomain ) {
s.contents.script = false;
}
} );
// Install script dataType
jQuery.ajaxSetup( {
accepts: {
script: "text/javascript, application/javascript, " +
"application/ecmascript, application/x-ecmascript"
},
contents: {
script: /\b(?:java|ecma)script\b/
},
converters: {
"text script": function( text ) {
jQuery.globalEval( text );
return text;
}
}
} );
// Handle cache's special case and crossDomain
jQuery.ajaxPrefilter( "script", function( s ) {
if ( s.cache === undefined ) {
s.cache = false;
}
if ( s.crossDomain ) {
s.type = "GET";
}
} );
// Bind script tag hack transport
jQuery.ajaxTransport( "script", function( s ) {
// This transport only deals with cross domain requests
if ( s.crossDomain ) {
var script, callback;
return {
send: function( _, complete ) {
script = jQuery( "<script>" ).prop( {
charset: s.scriptCharset,
src: s.url
} ).on(
"load error",
callback = function( evt ) {
script.remove();
callback = null;
if ( evt ) {
complete( evt.type === "error" ? 404 : 200, evt.type );
}
}
);
// Use native DOM manipulation to avoid our domManip AJAX trickery
document.head.appendChild( script[ 0 ] );
},
abort: function() {
if ( callback ) {
callback();
}
}
};
}
} );
var oldCallbacks = [],
rjsonp = /(=)\?(?=&|$)|\?\?/;
// Default jsonp settings
jQuery.ajaxSetup( {
jsonp: "callback",
jsonpCallback: function() {
var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( nonce++ ) );
this[ callback ] = true;
return callback;
}
} );
// Detect, normalize options and install callbacks for jsonp requests
jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {
var callbackName, overwritten, responseContainer,
jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
"url" :
typeof s.data === "string" &&
( s.contentType || "" )
.indexOf( "application/x-www-form-urlencoded" ) === 0 &&
rjsonp.test( s.data ) && "data"
);
// Handle iff the expected data type is "jsonp" or we have a parameter to set
if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {
// Get callback name, remembering preexisting value associated with it
callbackName = s.jsonpCallback = jQuery.isFunction( s.jsonpCallback ) ?
s.jsonpCallback() :
s.jsonpCallback;
// Insert callback into url or form data
if ( jsonProp ) {
s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
} else if ( s.jsonp !== false ) {
s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
}
// Use data converter to retrieve json after script execution
s.converters[ "script json" ] = function() {
if ( !responseContainer ) {
jQuery.error( callbackName + " was not called" );
}
return responseContainer[ 0 ];
};
// Force json dataType
s.dataTypes[ 0 ] = "json";
// Install callback
overwritten = window[ callbackName ];
window[ callbackName ] = function() {
responseContainer = arguments;
};
// Clean-up function (fires after converters)
jqXHR.always( function() {
// If previous value didn't exist - remove it
if ( overwritten === undefined ) {
jQuery( window ).removeProp( callbackName );
// Otherwise restore preexisting value
} else {
window[ callbackName ] = overwritten;
}
// Save back as free
if ( s[ callbackName ] ) {
// Make sure that re-using the options doesn't screw things around
s.jsonpCallback = originalSettings.jsonpCallback;
// Save the callback name for future use
oldCallbacks.push( callbackName );
}
// Call if it was a function and we have a response
if ( responseContainer && jQuery.isFunction( overwritten ) ) {
overwritten( responseContainer[ 0 ] );
}
responseContainer = overwritten = undefined;
} );
// Delegate to script
return "script";
}
} );
// Support: Safari 8 only
// In Safari 8 documents created via document.implementation.createHTMLDocument
// collapse sibling forms: the second one becomes a child of the first one.
// Because of that, this security measure has to be disabled in Safari 8.
// https://bugs.webkit.org/show_bug.cgi?id=137337
support.createHTMLDocument = ( function() {
var body = document.implementation.createHTMLDocument( "" ).body;
body.innerHTML = "<form></form><form></form>";
return body.childNodes.length === 2;
} )();
// Argument "data" should be string of html
// context (optional): If specified, the fragment will be created in this context,
// defaults to document
// keepScripts (optional): If true, will include scripts passed in the html string
jQuery.parseHTML = function( data, context, keepScripts ) {
if ( typeof data !== "string" ) {
return [];
}
if ( typeof context === "boolean" ) {
keepScripts = context;
context = false;
}
var base, parsed, scripts;
if ( !context ) {
// Stop scripts or inline event handlers from being executed immediately
// by using document.implementation
if ( support.createHTMLDocument ) {
context = document.implementation.createHTMLDocument( "" );
// Set the base href for the created document
// so any parsed elements with URLs
// are based on the document's URL (gh-2965)
base = context.createElement( "base" );
base.href = document.location.href;
context.head.appendChild( base );
} else {
context = document;
}
}
parsed = rsingleTag.exec( data );
scripts = !keepScripts && [];
// Single tag
if ( parsed ) {
return [ context.createElement( parsed[ 1 ] ) ];
}
parsed = buildFragment( [ data ], context, scripts );
if ( scripts && scripts.length ) {
jQuery( scripts ).remove();
}
return jQuery.merge( [], parsed.childNodes );
};
/**
* Load a url into a page
*/
jQuery.fn.load = function( url, params, callback ) {
var selector, type, response,
self = this,
off = url.indexOf( " " );
if ( off > -1 ) {
selector = jQuery.trim( url.slice( off ) );
url = url.slice( 0, off );
}
// If it's a function
if ( jQuery.isFunction( params ) ) {
// We assume that it's the callback
callback = params;
params = undefined;
// Otherwise, build a param string
} else if ( params && typeof params === "object" ) {
type = "POST";
}
// If we have elements to modify, make the request
if ( self.length > 0 ) {
jQuery.ajax( {
url: url,
// If "type" variable is undefined, then "GET" method will be used.
// Make value of this field explicit since
// user can override it through ajaxSetup method
type: type || "GET",
dataType: "html",
data: params
} ).done( function( responseText ) {
// Save response for use in complete callback
response = arguments;
self.html( selector ?
// If a selector was specified, locate the right elements in a dummy div
// Exclude scripts to avoid IE 'Permission Denied' errors
jQuery( "<div>" ).append( jQuery.parseHTML( responseText ) ).find( selector ) :
// Otherwise use the full result
responseText );
// If the request succeeds, this function gets "data", "status", "jqXHR"
// but they are ignored because response was set above.
// If it fails, this function gets "jqXHR", "status", "error"
} ).always( callback && function( jqXHR, status ) {
self.each( function() {
callback.apply( this, response || [ jqXHR.responseText, status, jqXHR ] );
} );
} );
}
return this;
};
// Attach a bunch of functions for handling common AJAX events
jQuery.each( [
"ajaxStart",
"ajaxStop",
"ajaxComplete",
"ajaxError",
"ajaxSuccess",
"ajaxSend"
], function( i, type ) {
jQuery.fn[ type ] = function( fn ) {
return this.on( type, fn );
};
} );
jQuery.expr.pseudos.animated = function( elem ) {
return jQuery.grep( jQuery.timers, function( fn ) {
return elem === fn.elem;
} ).length;
};
/**
* Gets a window from an element
*/
function getWindow( elem ) {
return jQuery.isWindow( elem ) ? elem : elem.nodeType === 9 && elem.defaultView;
}
jQuery.offset = {
setOffset: function( elem, options, i ) {
var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
position = jQuery.css( elem, "position" ),
curElem = jQuery( elem ),
props = {};
// Set position first, in-case top/left are set even on static elem
if ( position === "static" ) {
elem.style.position = "relative";
}
curOffset = curElem.offset();
curCSSTop = jQuery.css( elem, "top" );
curCSSLeft = jQuery.css( elem, "left" );
calculatePosition = ( position === "absolute" || position === "fixed" ) &&
( curCSSTop + curCSSLeft ).indexOf( "auto" ) > -1;
// Need to be able to calculate position if either
// top or left is auto and position is either absolute or fixed
if ( calculatePosition ) {
curPosition = curElem.position();
curTop = curPosition.top;
curLeft = curPosition.left;
} else {
curTop = parseFloat( curCSSTop ) || 0;
curLeft = parseFloat( curCSSLeft ) || 0;
}
if ( jQuery.isFunction( options ) ) {
// Use jQuery.extend here to allow modification of coordinates argument (gh-1848)
options = options.call( elem, i, jQuery.extend( {}, curOffset ) );
}
if ( options.top != null ) {
props.top = ( options.top - curOffset.top ) + curTop;
}
if ( options.left != null ) {
props.left = ( options.left - curOffset.left ) + curLeft;
}
if ( "using" in options ) {
options.using.call( elem, props );
} else {
curElem.css( props );
}
}
};
jQuery.fn.extend( {
offset: function( options ) {
// Preserve chaining for setter
if ( arguments.length ) {
return options === undefined ?
this :
this.each( function( i ) {
jQuery.offset.setOffset( this, options, i );
} );
}
var docElem, win, rect, doc,
elem = this[ 0 ];
if ( !elem ) {
return;
}
// Support: IE <=11 only
// Running getBoundingClientRect on a
// disconnected node in IE throws an error
if ( !elem.getClientRects().length ) {
return { top: 0, left: 0 };
}
rect = elem.getBoundingClientRect();
// Make sure element is not hidden (display: none)
if ( rect.width || rect.height ) {
doc = elem.ownerDocument;
win = getWindow( doc );
docElem = doc.documentElement;
return {
top: rect.top + win.pageYOffset - docElem.clientTop,
left: rect.left + win.pageXOffset - docElem.clientLeft
};
}
// Return zeros for disconnected and hidden elements (gh-2310)
return rect;
},
position: function() {
if ( !this[ 0 ] ) {
return;
}
var offsetParent, offset,
elem = this[ 0 ],
parentOffset = { top: 0, left: 0 };
// Fixed elements are offset from window (parentOffset = {top:0, left: 0},
// because it is its only offset parent
if ( jQuery.css( elem, "position" ) === "fixed" ) {
// Assume getBoundingClientRect is there when computed position is fixed
offset = elem.getBoundingClientRect();
} else {
// Get *real* offsetParent
offsetParent = this.offsetParent();
// Get correct offsets
offset = this.offset();
if ( !jQuery.nodeName( offsetParent[ 0 ], "html" ) ) {
parentOffset = offsetParent.offset();
}
// Add offsetParent borders
parentOffset = {
top: parentOffset.top + jQuery.css( offsetParent[ 0 ], "borderTopWidth", true ),
left: parentOffset.left + jQuery.css( offsetParent[ 0 ], "borderLeftWidth", true )
};
}
// Subtract parent offsets and element margins
return {
top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),
left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
};
},
// This method will return documentElement in the following cases:
// 1) For the element inside the iframe without offsetParent, this method will return
// documentElement of the parent window
// 2) For the hidden or detached element
// 3) For body or html element, i.e. in case of the html node - it will return itself
//
// but those exceptions were never presented as a real life use-cases
// and might be considered as more preferable results.
//
// This logic, however, is not guaranteed and can change at any point in the future
offsetParent: function() {
return this.map( function() {
var offsetParent = this.offsetParent;
while ( offsetParent && jQuery.css( offsetParent, "position" ) === "static" ) {
offsetParent = offsetParent.offsetParent;
}
return offsetParent || documentElement;
} );
}
} );
// Create scrollLeft and scrollTop methods
jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) {
var top = "pageYOffset" === prop;
jQuery.fn[ method ] = function( val ) {
return access( this, function( elem, method, val ) {
var win = getWindow( elem );
if ( val === undefined ) {
return win ? win[ prop ] : elem[ method ];
}
if ( win ) {
win.scrollTo(
!top ? val : win.pageXOffset,
top ? val : win.pageYOffset
);
} else {
elem[ method ] = val;
}
}, method, val, arguments.length );
};
} );
// Support: Safari <=7 - 9.1, Chrome <=37 - 49
// Add the top/left cssHooks using jQuery.fn.position
// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
// Blink bug: https://bugs.chromium.org/p/chromium/issues/detail?id=589347
// getComputedStyle returns percent when specified for top/left/bottom/right;
// rather than make the css module depend on the offset module, just check for it here
jQuery.each( [ "top", "left" ], function( i, prop ) {
jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition,
function( elem, computed ) {
if ( computed ) {
computed = curCSS( elem, prop );
// If curCSS returns percentage, fallback to offset
return rnumnonpx.test( computed ) ?
jQuery( elem ).position()[ prop ] + "px" :
computed;
}
}
);
} );
// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name },
function( defaultExtra, funcName ) {
// Margin is only for outerHeight, outerWidth
jQuery.fn[ funcName ] = function( margin, value ) {
var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );
return access( this, function( elem, type, value ) {
var doc;
if ( jQuery.isWindow( elem ) ) {
// $( window ).outerWidth/Height return w/h including scrollbars (gh-1729)
return funcName.indexOf( "outer" ) === 0 ?
elem[ "inner" + name ] :
elem.document.documentElement[ "client" + name ];
}
// Get document width or height
if ( elem.nodeType === 9 ) {
doc = elem.documentElement;
// Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],
// whichever is greatest
return Math.max(
elem.body[ "scroll" + name ], doc[ "scroll" + name ],
elem.body[ "offset" + name ], doc[ "offset" + name ],
doc[ "client" + name ]
);
}
return value === undefined ?
// Get width or height on the element, requesting but not forcing parseFloat
jQuery.css( elem, type, extra ) :
// Set width or height on the element
jQuery.style( elem, type, value, extra );
}, type, chainable ? margin : undefined, chainable );
};
} );
} );
jQuery.fn.extend( {
bind: function( types, data, fn ) {
return this.on( types, null, data, fn );
},
unbind: function( types, fn ) {
return this.off( types, null, fn );
},
delegate: function( selector, types, data, fn ) {
return this.on( types, selector, data, fn );
},
undelegate: function( selector, types, fn ) {
// ( namespace ) or ( selector, types [, fn] )
return arguments.length === 1 ?
this.off( selector, "**" ) :
this.off( types, selector || "**", fn );
}
} );
jQuery.parseJSON = JSON.parse;
// Register as a named AMD module, since jQuery can be concatenated with other
// files that may use define, but not via a proper concatenation script that
// understands anonymous AMD modules. A named AMD is safest and most robust
// way to register. Lowercase jquery is used because AMD module names are
// derived from file names, and jQuery is normally delivered in a lowercase
// file name. Do this after creating the global so that if an AMD module wants
// to call noConflict to hide this version of jQuery, it will work.
// Note that for maximum portability, libraries that are not jQuery should
// declare themselves as anonymous modules, and avoid setting a global if an
// AMD loader is present. jQuery is a special case. For more information, see
// https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon
if ( typeof define === "function" && define.amd ) {
define( "jquery", [], function() {
return jQuery;
} );
}
var
// Map over jQuery in case of overwrite
_jQuery = window.jQuery,
// Map over the $ in case of overwrite
_$ = window.$;
jQuery.noConflict = function( deep ) {
if ( window.$ === jQuery ) {
window.$ = _$;
}
if ( deep && window.jQuery === jQuery ) {
window.jQuery = _jQuery;
}
return jQuery;
};
// Expose jQuery and $ identifiers, even in AMD
// (#7102#comment:10, https://github.com/jquery/jquery/pull/557)
// and CommonJS for browser emulators (#13566)
if ( !noGlobal ) {
window.jQuery = window.$ = jQuery;
}
return jQuery;
} );
},{}],4:[function(require,module,exports){
(function (global){
/**
* @license
* lodash <https://lodash.com/>
* Copyright jQuery Foundation and other contributors <https://jquery.org/>
* Released under MIT license <https://lodash.com/license>
* Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
* Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
*/
;(function() {
/** Used as a safe reference for `undefined` in pre-ES5 environments. */
var undefined;
/** Used as the semantic version number. */
var VERSION = '4.13.1';
/** Used as the size to enable large array optimizations. */
var LARGE_ARRAY_SIZE = 200;
/** Used as the `TypeError` message for "Functions" methods. */
var FUNC_ERROR_TEXT = 'Expected a function';
/** Used to stand-in for `undefined` hash values. */
var HASH_UNDEFINED = '__lodash_hash_undefined__';
/** Used as the internal argument placeholder. */
var PLACEHOLDER = '__lodash_placeholder__';
/** Used to compose bitmasks for wrapper metadata. */
var BIND_FLAG = 1,
BIND_KEY_FLAG = 2,
CURRY_BOUND_FLAG = 4,
CURRY_FLAG = 8,
CURRY_RIGHT_FLAG = 16,
PARTIAL_FLAG = 32,
PARTIAL_RIGHT_FLAG = 64,
ARY_FLAG = 128,
REARG_FLAG = 256,
FLIP_FLAG = 512;
/** Used to compose bitmasks for comparison styles. */
var UNORDERED_COMPARE_FLAG = 1,
PARTIAL_COMPARE_FLAG = 2;
/** Used as default options for `_.truncate`. */
var DEFAULT_TRUNC_LENGTH = 30,
DEFAULT_TRUNC_OMISSION = '...';
/** Used to detect hot functions by number of calls within a span of milliseconds. */
var HOT_COUNT = 150,
HOT_SPAN = 16;
/** Used to indicate the type of lazy iteratees. */
var LAZY_FILTER_FLAG = 1,
LAZY_MAP_FLAG = 2,
LAZY_WHILE_FLAG = 3;
/** Used as references for various `Number` constants. */
var INFINITY = 1 / 0,
MAX_SAFE_INTEGER = 9007199254740991,
MAX_INTEGER = 1.7976931348623157e+308,
NAN = 0 / 0;
/** Used as references for the maximum length and index of an array. */
var MAX_ARRAY_LENGTH = 4294967295,
MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,
HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;
/** `Object#toString` result references. */
var argsTag = '[object Arguments]',
arrayTag = '[object Array]',
boolTag = '[object Boolean]',
dateTag = '[object Date]',
errorTag = '[object Error]',
funcTag = '[object Function]',
genTag = '[object GeneratorFunction]',
mapTag = '[object Map]',
numberTag = '[object Number]',
objectTag = '[object Object]',
promiseTag = '[object Promise]',
regexpTag = '[object RegExp]',
setTag = '[object Set]',
stringTag = '[object String]',
symbolTag = '[object Symbol]',
weakMapTag = '[object WeakMap]',
weakSetTag = '[object WeakSet]';
var arrayBufferTag = '[object ArrayBuffer]',
dataViewTag = '[object DataView]',
float32Tag = '[object Float32Array]',
float64Tag = '[object Float64Array]',
int8Tag = '[object Int8Array]',
int16Tag = '[object Int16Array]',
int32Tag = '[object Int32Array]',
uint8Tag = '[object Uint8Array]',
uint8ClampedTag = '[object Uint8ClampedArray]',
uint16Tag = '[object Uint16Array]',
uint32Tag = '[object Uint32Array]';
/** Used to match empty string literals in compiled template source. */
var reEmptyStringLeading = /\b__p \+= '';/g,
reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;
/** Used to match HTML entities and HTML characters. */
var reEscapedHtml = /&(?:amp|lt|gt|quot|#39|#96);/g,
reUnescapedHtml = /[&<>"'`]/g,
reHasEscapedHtml = RegExp(reEscapedHtml.source),
reHasUnescapedHtml = RegExp(reUnescapedHtml.source);
/** Used to match template delimiters. */
var reEscape = /<%-([\s\S]+?)%>/g,
reEvaluate = /<%([\s\S]+?)%>/g,
reInterpolate = /<%=([\s\S]+?)%>/g;
/** Used to match property names within property paths. */
var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,
reIsPlainProp = /^\w*$/,
rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(\.|\[\])(?:\4|$))/g;
/**
* Used to match `RegExp`
* [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns).
*/
var reRegExpChar = /[\\^$.*+?()[\]{}|]/g,
reHasRegExpChar = RegExp(reRegExpChar.source);
/** Used to match leading and trailing whitespace. */
var reTrim = /^\s+|\s+$/g,
reTrimStart = /^\s+/,
reTrimEnd = /\s+$/;
/** Used to match non-compound words composed of alphanumeric characters. */
var reBasicWord = /[a-zA-Z0-9]+/g;
/** Used to match backslashes in property paths. */
var reEscapeChar = /\\(\\)?/g;
/**
* Used to match
* [ES template delimiters](http://ecma-international.org/ecma-262/6.0/#sec-template-literal-lexical-components).
*/
var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;
/** Used to match `RegExp` flags from their coerced string values. */
var reFlags = /\w*$/;
/** Used to detect hexadecimal string values. */
var reHasHexPrefix = /^0x/i;
/** Used to detect bad signed hexadecimal string values. */
var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;
/** Used to detect binary string values. */
var reIsBinary = /^0b[01]+$/i;
/** Used to detect host constructors (Safari). */
var reIsHostCtor = /^\[object .+?Constructor\]$/;
/** Used to detect octal string values. */
var reIsOctal = /^0o[0-7]+$/i;
/** Used to detect unsigned integer values. */
var reIsUint = /^(?:0|[1-9]\d*)$/;
/** Used to match latin-1 supplementary letters (excluding mathematical operators). */
var reLatin1 = /[\xc0-\xd6\xd8-\xde\xdf-\xf6\xf8-\xff]/g;
/** Used to ensure capturing order of template delimiters. */
var reNoMatch = /($^)/;
/** Used to match unescaped characters in compiled string literals. */
var reUnescapedString = /['\n\r\u2028\u2029\\]/g;
/** Used to compose unicode character classes. */
var rsAstralRange = '\\ud800-\\udfff',
rsComboMarksRange = '\\u0300-\\u036f\\ufe20-\\ufe23',
rsComboSymbolsRange = '\\u20d0-\\u20f0',
rsDingbatRange = '\\u2700-\\u27bf',
rsLowerRange = 'a-z\\xdf-\\xf6\\xf8-\\xff',
rsMathOpRange = '\\xac\\xb1\\xd7\\xf7',
rsNonCharRange = '\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf',
rsPunctuationRange = '\\u2000-\\u206f',
rsSpaceRange = ' \\t\\x0b\\f\\xa0\\ufeff\\n\\r\\u2028\\u2029\\u1680\\u180e\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200a\\u202f\\u205f\\u3000',
rsUpperRange = 'A-Z\\xc0-\\xd6\\xd8-\\xde',
rsVarRange = '\\ufe0e\\ufe0f',
rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;
/** Used to compose unicode capture groups. */
var rsApos = "['\u2019]",
rsAstral = '[' + rsAstralRange + ']',
rsBreak = '[' + rsBreakRange + ']',
rsCombo = '[' + rsComboMarksRange + rsComboSymbolsRange + ']',
rsDigits = '\\d+',
rsDingbat = '[' + rsDingbatRange + ']',
rsLower = '[' + rsLowerRange + ']',
rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',
rsFitz = '\\ud83c[\\udffb-\\udfff]',
rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',
rsNonAstral = '[^' + rsAstralRange + ']',
rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}',
rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]',
rsUpper = '[' + rsUpperRange + ']',
rsZWJ = '\\u200d';
/** Used to compose unicode regexes. */
var rsLowerMisc = '(?:' + rsLower + '|' + rsMisc + ')',
rsUpperMisc = '(?:' + rsUpper + '|' + rsMisc + ')',
rsOptLowerContr = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',
rsOptUpperContr = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',
reOptMod = rsModifier + '?',
rsOptVar = '[' + rsVarRange + ']?',
rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',
rsSeq = rsOptVar + reOptMod + rsOptJoin,
rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,
rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';
/** Used to match apostrophes. */
var reApos = RegExp(rsApos, 'g');
/**
* Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and
* [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).
*/
var reComboMark = RegExp(rsCombo, 'g');
/** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */
var reComplexSymbol = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');
/** Used to match complex or compound words. */
var reComplexWord = RegExp([
rsUpper + '?' + rsLower + '+' + rsOptLowerContr + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',
rsUpperMisc + '+' + rsOptUpperContr + '(?=' + [rsBreak, rsUpper + rsLowerMisc, '$'].join('|') + ')',
rsUpper + '?' + rsLowerMisc + '+' + rsOptLowerContr,
rsUpper + '+' + rsOptUpperContr,
rsDigits,
rsEmoji
].join('|'), 'g');
/** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */
var reHasComplexSymbol = RegExp('[' + rsZWJ + rsAstralRange + rsComboMarksRange + rsComboSymbolsRange + rsVarRange + ']');
/** Used to detect strings that need a more robust regexp to match words. */
var reHasComplexWord = /[a-z][A-Z]|[A-Z]{2,}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;
/** Used to assign default `context` object properties. */
var contextProps = [
'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array',
'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object',
'Promise', 'Reflect', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError',
'Uint8Array', 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',
'_', 'isFinite', 'parseInt', 'setTimeout'
];
/** Used to make template sourceURLs easier to identify. */
var templateCounter = -1;
/** Used to identify `toStringTag` values of typed arrays. */
var typedArrayTags = {};
typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
typedArrayTags[uint32Tag] = true;
typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =
typedArrayTags[errorTag] = typedArrayTags[funcTag] =
typedArrayTags[mapTag] = typedArrayTags[numberTag] =
typedArrayTags[objectTag] = typedArrayTags[regexpTag] =
typedArrayTags[setTag] = typedArrayTags[stringTag] =
typedArrayTags[weakMapTag] = false;
/** Used to identify `toStringTag` values supported by `_.clone`. */
var cloneableTags = {};
cloneableTags[argsTag] = cloneableTags[arrayTag] =
cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =
cloneableTags[boolTag] = cloneableTags[dateTag] =
cloneableTags[float32Tag] = cloneableTags[float64Tag] =
cloneableTags[int8Tag] = cloneableTags[int16Tag] =
cloneableTags[int32Tag] = cloneableTags[mapTag] =
cloneableTags[numberTag] = cloneableTags[objectTag] =
cloneableTags[regexpTag] = cloneableTags[setTag] =
cloneableTags[stringTag] = cloneableTags[symbolTag] =
cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
cloneableTags[errorTag] = cloneableTags[funcTag] =
cloneableTags[weakMapTag] = false;
/** Used to map latin-1 supplementary letters to basic latin letters. */
var deburredLetters = {
'\xc0': 'A', '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A',
'\xe0': 'a', '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a',
'\xc7': 'C', '\xe7': 'c',
'\xd0': 'D', '\xf0': 'd',
'\xc8': 'E', '\xc9': 'E', '\xca': 'E', '\xcb': 'E',
'\xe8': 'e', '\xe9': 'e', '\xea': 'e', '\xeb': 'e',
'\xcC': 'I', '\xcd': 'I', '\xce': 'I', '\xcf': 'I',
'\xeC': 'i', '\xed': 'i', '\xee': 'i', '\xef': 'i',
'\xd1': 'N', '\xf1': 'n',
'\xd2': 'O', '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O',
'\xf2': 'o', '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o',
'\xd9': 'U', '\xda': 'U', '\xdb': 'U', '\xdc': 'U',
'\xf9': 'u', '\xfa': 'u', '\xfb': 'u', '\xfc': 'u',
'\xdd': 'Y', '\xfd': 'y', '\xff': 'y',
'\xc6': 'Ae', '\xe6': 'ae',
'\xde': 'Th', '\xfe': 'th',
'\xdf': 'ss'
};
/** Used to map characters to HTML entities. */
var htmlEscapes = {
'&': '&',
'<': '<',
'>': '>',
'"': '"',
"'": ''',
'`': '`'
};
/** Used to map HTML entities to characters. */
var htmlUnescapes = {
'&': '&',
'<': '<',
'>': '>',
'"': '"',
''': "'",
'`': '`'
};
/** Used to escape characters for inclusion in compiled string literals. */
var stringEscapes = {
'\\': '\\',
"'": "'",
'\n': 'n',
'\r': 'r',
'\u2028': 'u2028',
'\u2029': 'u2029'
};
/** Built-in method references without a dependency on `root`. */
var freeParseFloat = parseFloat,
freeParseInt = parseInt;
/** Detect free variable `exports`. */
var freeExports = typeof exports == 'object' && exports;
/** Detect free variable `module`. */
var freeModule = freeExports && typeof module == 'object' && module;
/** Detect the popular CommonJS extension `module.exports`. */
var moduleExports = freeModule && freeModule.exports === freeExports;
/** Detect free variable `global` from Node.js. */
var freeGlobal = checkGlobal(typeof global == 'object' && global);
/** Detect free variable `self`. */
var freeSelf = checkGlobal(typeof self == 'object' && self);
/** Detect `this` as the global object. */
var thisGlobal = checkGlobal(typeof this == 'object' && this);
/** Used as a reference to the global object. */
var root = freeGlobal || freeSelf || thisGlobal || Function('return this')();
/*--------------------------------------------------------------------------*/
/**
* Adds the key-value `pair` to `map`.
*
* @private
* @param {Object} map The map to modify.
* @param {Array} pair The key-value pair to add.
* @returns {Object} Returns `map`.
*/
function addMapEntry(map, pair) {
// Don't return `Map#set` because it doesn't return the map instance in IE 11.
map.set(pair[0], pair[1]);
return map;
}
/**
* Adds `value` to `set`.
*
* @private
* @param {Object} set The set to modify.
* @param {*} value The value to add.
* @returns {Object} Returns `set`.
*/
function addSetEntry(set, value) {
set.add(value);
return set;
}
/**
* A faster alternative to `Function#apply`, this function invokes `func`
* with the `this` binding of `thisArg` and the arguments of `args`.
*
* @private
* @param {Function} func The function to invoke.
* @param {*} thisArg The `this` binding of `func`.
* @param {Array} args The arguments to invoke `func` with.
* @returns {*} Returns the result of `func`.
*/
function apply(func, thisArg, args) {
var length = args.length;
switch (length) {
case 0: return func.call(thisArg);
case 1: return func.call(thisArg, args[0]);
case 2: return func.call(thisArg, args[0], args[1]);
case 3: return func.call(thisArg, args[0], args[1], args[2]);
}
return func.apply(thisArg, args);
}
/**
* A specialized version of `baseAggregator` for arrays.
*
* @private
* @param {Array} [array] The array to iterate over.
* @param {Function} setter The function to set `accumulator` values.
* @param {Function} iteratee The iteratee to transform keys.
* @param {Object} accumulator The initial aggregated object.
* @returns {Function} Returns `accumulator`.
*/
function arrayAggregator(array, setter, iteratee, accumulator) {
var index = -1,
length = array ? array.length : 0;
while (++index < length) {
var value = array[index];
setter(accumulator, value, iteratee(value), array);
}
return accumulator;
}
/**
* A specialized version of `_.forEach` for arrays without support for
* iteratee shorthands.
*
* @private
* @param {Array} [array] The array to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @returns {Array} Returns `array`.
*/
function arrayEach(array, iteratee) {
var index = -1,
length = array ? array.length : 0;
while (++index < length) {
if (iteratee(array[index], index, array) === false) {
break;
}
}
return array;
}
/**
* A specialized version of `_.forEachRight` for arrays without support for
* iteratee shorthands.
*
* @private
* @param {Array} [array] The array to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @returns {Array} Returns `array`.
*/
function arrayEachRight(array, iteratee) {
var length = array ? array.length : 0;
while (length--) {
if (iteratee(array[length], length, array) === false) {
break;
}
}
return array;
}
/**
* A specialized version of `_.every` for arrays without support for
* iteratee shorthands.
*
* @private
* @param {Array} [array] The array to iterate over.
* @param {Function} predicate The function invoked per iteration.
* @returns {boolean} Returns `true` if all elements pass the predicate check,
* else `false`.
*/
function arrayEvery(array, predicate) {
var index = -1,
length = array ? array.length : 0;
while (++index < length) {
if (!predicate(array[index], index, array)) {
return false;
}
}
return true;
}
/**
* A specialized version of `_.filter` for arrays without support for
* iteratee shorthands.
*
* @private
* @param {Array} [array] The array to iterate over.
* @param {Function} predicate The function invoked per iteration.
* @returns {Array} Returns the new filtered array.
*/
function arrayFilter(array, predicate) {
var index = -1,
length = array ? array.length : 0,
resIndex = 0,
result = [];
while (++index < length) {
var value = array[index];
if (predicate(value, index, array)) {
result[resIndex++] = value;
}
}
return result;
}
/**
* A specialized version of `_.includes` for arrays without support for
* specifying an index to search from.
*
* @private
* @param {Array} [array] The array to search.
* @param {*} target The value to search for.
* @returns {boolean} Returns `true` if `target` is found, else `false`.
*/
function arrayIncludes(array, value) {
var length = array ? array.length : 0;
return !!length && baseIndexOf(array, value, 0) > -1;
}
/**
* This function is like `arrayIncludes` except that it accepts a comparator.
*
* @private
* @param {Array} [array] The array to search.
* @param {*} target The value to search for.
* @param {Function} comparator The comparator invoked per element.
* @returns {boolean} Returns `true` if `target` is found, else `false`.
*/
function arrayIncludesWith(array, value, comparator) {
var index = -1,
length = array ? array.length : 0;
while (++index < length) {
if (comparator(value, array[index])) {
return true;
}
}
return false;
}
/**
* A specialized version of `_.map` for arrays without support for iteratee
* shorthands.
*
* @private
* @param {Array} [array] The array to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @returns {Array} Returns the new mapped array.
*/
function arrayMap(array, iteratee) {
var index = -1,
length = array ? array.length : 0,
result = Array(length);
while (++index < length) {
result[index] = iteratee(array[index], index, array);
}
return result;
}
/**
* Appends the elements of `values` to `array`.
*
* @private
* @param {Array} array The array to modify.
* @param {Array} values The values to append.
* @returns {Array} Returns `array`.
*/
function arrayPush(array, values) {
var index = -1,
length = values.length,
offset = array.length;
while (++index < length) {
array[offset + index] = values[index];
}
return array;
}
/**
* A specialized version of `_.reduce` for arrays without support for
* iteratee shorthands.
*
* @private
* @param {Array} [array] The array to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @param {*} [accumulator] The initial value.
* @param {boolean} [initAccum] Specify using the first element of `array` as
* the initial value.
* @returns {*} Returns the accumulated value.
*/
function arrayReduce(array, iteratee, accumulator, initAccum) {
var index = -1,
length = array ? array.length : 0;
if (initAccum && length) {
accumulator = array[++index];
}
while (++index < length) {
accumulator = iteratee(accumulator, array[index], index, array);
}
return accumulator;
}
/**
* A specialized version of `_.reduceRight` for arrays without support for
* iteratee shorthands.
*
* @private
* @param {Array} [array] The array to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @param {*} [accumulator] The initial value.
* @param {boolean} [initAccum] Specify using the last element of `array` as
* the initial value.
* @returns {*} Returns the accumulated value.
*/
function arrayReduceRight(array, iteratee, accumulator, initAccum) {
var length = array ? array.length : 0;
if (initAccum && length) {
accumulator = array[--length];
}
while (length--) {
accumulator = iteratee(accumulator, array[length], length, array);
}
return accumulator;
}
/**
* A specialized version of `_.some` for arrays without support for iteratee
* shorthands.
*
* @private
* @param {Array} [array] The array to iterate over.
* @param {Function} predicate The function invoked per iteration.
* @returns {boolean} Returns `true` if any element passes the predicate check,
* else `false`.
*/
function arraySome(array, predicate) {
var index = -1,
length = array ? array.length : 0;
while (++index < length) {
if (predicate(array[index], index, array)) {
return true;
}
}
return false;
}
/**
* The base implementation of methods like `_.findKey` and `_.findLastKey`,
* without support for iteratee shorthands, which iterates over `collection`
* using `eachFunc`.
*
* @private
* @param {Array|Object} collection The collection to search.
* @param {Function} predicate The function invoked per iteration.
* @param {Function} eachFunc The function to iterate over `collection`.
* @returns {*} Returns the found element or its key, else `undefined`.
*/
function baseFindKey(collection, predicate, eachFunc) {
var result;
eachFunc(collection, function(value, key, collection) {
if (predicate(value, key, collection)) {
result = key;
return false;
}
});
return result;
}
/**
* The base implementation of `_.findIndex` and `_.findLastIndex` without
* support for iteratee shorthands.
*
* @private
* @param {Array} array The array to search.
* @param {Function} predicate The function invoked per iteration.
* @param {number} fromIndex The index to search from.
* @param {boolean} [fromRight] Specify iterating from right to left.
* @returns {number} Returns the index of the matched value, else `-1`.
*/
function baseFindIndex(array, predicate, fromIndex, fromRight) {
var length = array.length,
index = fromIndex + (fromRight ? 1 : -1);
while ((fromRight ? index-- : ++index < length)) {
if (predicate(array[index], index, array)) {
return index;
}
}
return -1;
}
/**
* The base implementation of `_.indexOf` without `fromIndex` bounds checks.
*
* @private
* @param {Array} array The array to search.
* @param {*} value The value to search for.
* @param {number} fromIndex The index to search from.
* @returns {number} Returns the index of the matched value, else `-1`.
*/
function baseIndexOf(array, value, fromIndex) {
if (value !== value) {
return indexOfNaN(array, fromIndex);
}
var index = fromIndex - 1,
length = array.length;
while (++index < length) {
if (array[index] === value) {
return index;
}
}
return -1;
}
/**
* This function is like `baseIndexOf` except that it accepts a comparator.
*
* @private
* @param {Array} array The array to search.
* @param {*} value The value to search for.
* @param {number} fromIndex The index to search from.
* @param {Function} comparator The comparator invoked per element.
* @returns {number} Returns the index of the matched value, else `-1`.
*/
function baseIndexOfWith(array, value, fromIndex, comparator) {
var index = fromIndex - 1,
length = array.length;
while (++index < length) {
if (comparator(array[index], value)) {
return index;
}
}
return -1;
}
/**
* The base implementation of `_.mean` and `_.meanBy` without support for
* iteratee shorthands.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @returns {number} Returns the mean.
*/
function baseMean(array, iteratee) {
var length = array ? array.length : 0;
return length ? (baseSum(array, iteratee) / length) : NAN;
}
/**
* The base implementation of `_.reduce` and `_.reduceRight`, without support
* for iteratee shorthands, which iterates over `collection` using `eachFunc`.
*
* @private
* @param {Array|Object} collection The collection to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @param {*} accumulator The initial value.
* @param {boolean} initAccum Specify using the first or last element of
* `collection` as the initial value.
* @param {Function} eachFunc The function to iterate over `collection`.
* @returns {*} Returns the accumulated value.
*/
function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) {
eachFunc(collection, function(value, index, collection) {
accumulator = initAccum
? (initAccum = false, value)
: iteratee(accumulator, value, index, collection);
});
return accumulator;
}
/**
* The base implementation of `_.sortBy` which uses `comparer` to define the
* sort order of `array` and replaces criteria objects with their corresponding
* values.
*
* @private
* @param {Array} array The array to sort.
* @param {Function} comparer The function to define sort order.
* @returns {Array} Returns `array`.
*/
function baseSortBy(array, comparer) {
var length = array.length;
array.sort(comparer);
while (length--) {
array[length] = array[length].value;
}
return array;
}
/**
* The base implementation of `_.sum` and `_.sumBy` without support for
* iteratee shorthands.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @returns {number} Returns the sum.
*/
function baseSum(array, iteratee) {
var result,
index = -1,
length = array.length;
while (++index < length) {
var current = iteratee(array[index]);
if (current !== undefined) {
result = result === undefined ? current : (result + current);
}
}
return result;
}
/**
* The base implementation of `_.times` without support for iteratee shorthands
* or max array length checks.
*
* @private
* @param {number} n The number of times to invoke `iteratee`.
* @param {Function} iteratee The function invoked per iteration.
* @returns {Array} Returns the array of results.
*/
function baseTimes(n, iteratee) {
var index = -1,
result = Array(n);
while (++index < n) {
result[index] = iteratee(index);
}
return result;
}
/**
* The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array
* of key-value pairs for `object` corresponding to the property names of `props`.
*
* @private
* @param {Object} object The object to query.
* @param {Array} props The property names to get values for.
* @returns {Object} Returns the key-value pairs.
*/
function baseToPairs(object, props) {
return arrayMap(props, function(key) {
return [key, object[key]];
});
}
/**
* The base implementation of `_.unary` without support for storing wrapper metadata.
*
* @private
* @param {Function} func The function to cap arguments for.
* @returns {Function} Returns the new capped function.
*/
function baseUnary(func) {
return function(value) {
return func(value);
};
}
/**
* The base implementation of `_.values` and `_.valuesIn` which creates an
* array of `object` property values corresponding to the property names
* of `props`.
*
* @private
* @param {Object} object The object to query.
* @param {Array} props The property names to get values for.
* @returns {Object} Returns the array of property values.
*/
function baseValues(object, props) {
return arrayMap(props, function(key) {
return object[key];
});
}
/**
* Checks if a cache value for `key` exists.
*
* @private
* @param {Object} cache The cache to query.
* @param {string} key The key of the entry to check.
* @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
*/
function cacheHas(cache, key) {
return cache.has(key);
}
/**
* Used by `_.trim` and `_.trimStart` to get the index of the first string symbol
* that is not found in the character symbols.
*
* @private
* @param {Array} strSymbols The string symbols to inspect.
* @param {Array} chrSymbols The character symbols to find.
* @returns {number} Returns the index of the first unmatched string symbol.
*/
function charsStartIndex(strSymbols, chrSymbols) {
var index = -1,
length = strSymbols.length;
while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}
return index;
}
/**
* Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol
* that is not found in the character symbols.
*
* @private
* @param {Array} strSymbols The string symbols to inspect.
* @param {Array} chrSymbols The character symbols to find.
* @returns {number} Returns the index of the last unmatched string symbol.
*/
function charsEndIndex(strSymbols, chrSymbols) {
var index = strSymbols.length;
while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}
return index;
}
/**
* Checks if `value` is a global object.
*
* @private
* @param {*} value The value to check.
* @returns {null|Object} Returns `value` if it's a global object, else `null`.
*/
function checkGlobal(value) {
return (value && value.Object === Object) ? value : null;
}
/**
* Gets the number of `placeholder` occurrences in `array`.
*
* @private
* @param {Array} array The array to inspect.
* @param {*} placeholder The placeholder to search for.
* @returns {number} Returns the placeholder count.
*/
function countHolders(array, placeholder) {
var length = array.length,
result = 0;
while (length--) {
if (array[length] === placeholder) {
result++;
}
}
return result;
}
/**
* Used by `_.deburr` to convert latin-1 supplementary letters to basic latin letters.
*
* @private
* @param {string} letter The matched letter to deburr.
* @returns {string} Returns the deburred letter.
*/
function deburrLetter(letter) {
return deburredLetters[letter];
}
/**
* Used by `_.escape` to convert characters to HTML entities.
*
* @private
* @param {string} chr The matched character to escape.
* @returns {string} Returns the escaped character.
*/
function escapeHtmlChar(chr) {
return htmlEscapes[chr];
}
/**
* Used by `_.template` to escape characters for inclusion in compiled string literals.
*
* @private
* @param {string} chr The matched character to escape.
* @returns {string} Returns the escaped character.
*/
function escapeStringChar(chr) {
return '\\' + stringEscapes[chr];
}
/**
* Gets the value at `key` of `object`.
*
* @private
* @param {Object} [object] The object to query.
* @param {string} key The key of the property to get.
* @returns {*} Returns the property value.
*/
function getValue(object, key) {
return object == null ? undefined : object[key];
}
/**
* Gets the index at which the first occurrence of `NaN` is found in `array`.
*
* @private
* @param {Array} array The array to search.
* @param {number} fromIndex The index to search from.
* @param {boolean} [fromRight] Specify iterating from right to left.
* @returns {number} Returns the index of the matched `NaN`, else `-1`.
*/
function indexOfNaN(array, fromIndex, fromRight) {
var length = array.length,
index = fromIndex + (fromRight ? 1 : -1);
while ((fromRight ? index-- : ++index < length)) {
var other = array[index];
if (other !== other) {
return index;
}
}
return -1;
}
/**
* Checks if `value` is a host object in IE < 9.
*
* @private
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a host object, else `false`.
*/
function isHostObject(value) {
// Many host objects are `Object` objects that can coerce to strings
// despite having improperly defined `toString` methods.
var result = false;
if (value != null && typeof value.toString != 'function') {
try {
result = !!(value + '');
} catch (e) {}
}
return result;
}
/**
* Converts `iterator` to an array.
*
* @private
* @param {Object} iterator The iterator to convert.
* @returns {Array} Returns the converted array.
*/
function iteratorToArray(iterator) {
var data,
result = [];
while (!(data = iterator.next()).done) {
result.push(data.value);
}
return result;
}
/**
* Converts `map` to its key-value pairs.
*
* @private
* @param {Object} map The map to convert.
* @returns {Array} Returns the key-value pairs.
*/
function mapToArray(map) {
var index = -1,
result = Array(map.size);
map.forEach(function(value, key) {
result[++index] = [key, value];
});
return result;
}
/**
* Replaces all `placeholder` elements in `array` with an internal placeholder
* and returns an array of their indexes.
*
* @private
* @param {Array} array The array to modify.
* @param {*} placeholder The placeholder to replace.
* @returns {Array} Returns the new array of placeholder indexes.
*/
function replaceHolders(array, placeholder) {
var index = -1,
length = array.length,
resIndex = 0,
result = [];
while (++index < length) {
var value = array[index];
if (value === placeholder || value === PLACEHOLDER) {
array[index] = PLACEHOLDER;
result[resIndex++] = index;
}
}
return result;
}
/**
* Converts `set` to an array of its values.
*
* @private
* @param {Object} set The set to convert.
* @returns {Array} Returns the values.
*/
function setToArray(set) {
var index = -1,
result = Array(set.size);
set.forEach(function(value) {
result[++index] = value;
});
return result;
}
/**
* Converts `set` to its value-value pairs.
*
* @private
* @param {Object} set The set to convert.
* @returns {Array} Returns the value-value pairs.
*/
function setToPairs(set) {
var index = -1,
result = Array(set.size);
set.forEach(function(value) {
result[++index] = [value, value];
});
return result;
}
/**
* Gets the number of symbols in `string`.
*
* @private
* @param {string} string The string to inspect.
* @returns {number} Returns the string size.
*/
function stringSize(string) {
if (!(string && reHasComplexSymbol.test(string))) {
return string.length;
}
var result = reComplexSymbol.lastIndex = 0;
while (reComplexSymbol.test(string)) {
result++;
}
return result;
}
/**
* Converts `string` to an array.
*
* @private
* @param {string} string The string to convert.
* @returns {Array} Returns the converted array.
*/
function stringToArray(string) {
return string.match(reComplexSymbol);
}
/**
* Used by `_.unescape` to convert HTML entities to characters.
*
* @private
* @param {string} chr The matched character to unescape.
* @returns {string} Returns the unescaped character.
*/
function unescapeHtmlChar(chr) {
return htmlUnescapes[chr];
}
/*--------------------------------------------------------------------------*/
/**
* Create a new pristine `lodash` function using the `context` object.
*
* @static
* @memberOf _
* @since 1.1.0
* @category Util
* @param {Object} [context=root] The context object.
* @returns {Function} Returns a new `lodash` function.
* @example
*
* _.mixin({ 'foo': _.constant('foo') });
*
* var lodash = _.runInContext();
* lodash.mixin({ 'bar': lodash.constant('bar') });
*
* _.isFunction(_.foo);
* // => true
* _.isFunction(_.bar);
* // => false
*
* lodash.isFunction(lodash.foo);
* // => false
* lodash.isFunction(lodash.bar);
* // => true
*
* // Use `context` to stub `Date#getTime` use in `_.now`.
* var stubbed = _.runInContext({
* 'Date': function() {
* return { 'getTime': stubGetTime };
* }
* });
*
* // Create a suped-up `defer` in Node.js.
* var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;
*/
function runInContext(context) {
context = context ? _.defaults({}, context, _.pick(root, contextProps)) : root;
/** Built-in constructor references. */
var Date = context.Date,
Error = context.Error,
Math = context.Math,
RegExp = context.RegExp,
TypeError = context.TypeError;
/** Used for built-in method references. */
var arrayProto = context.Array.prototype,
objectProto = context.Object.prototype,
stringProto = context.String.prototype;
/** Used to detect overreaching core-js shims. */
var coreJsData = context['__core-js_shared__'];
/** Used to detect methods masquerading as native. */
var maskSrcKey = (function() {
var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');
return uid ? ('Symbol(src)_1.' + uid) : '';
}());
/** Used to resolve the decompiled source of functions. */
var funcToString = context.Function.prototype.toString;
/** Used to check objects for own properties. */
var hasOwnProperty = objectProto.hasOwnProperty;
/** Used to generate unique IDs. */
var idCounter = 0;
/** Used to infer the `Object` constructor. */
var objectCtorString = funcToString.call(Object);
/**
* Used to resolve the
* [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
* of values.
*/
var objectToString = objectProto.toString;
/** Used to restore the original `_` reference in `_.noConflict`. */
var oldDash = root._;
/** Used to detect if a method is native. */
var reIsNative = RegExp('^' +
funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&')
.replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
);
/** Built-in value references. */
var Buffer = moduleExports ? context.Buffer : undefined,
Reflect = context.Reflect,
Symbol = context.Symbol,
Uint8Array = context.Uint8Array,
enumerate = Reflect ? Reflect.enumerate : undefined,
getOwnPropertySymbols = Object.getOwnPropertySymbols,
iteratorSymbol = typeof (iteratorSymbol = Symbol && Symbol.iterator) == 'symbol' ? iteratorSymbol : undefined,
objectCreate = Object.create,
propertyIsEnumerable = objectProto.propertyIsEnumerable,
splice = arrayProto.splice;
/** Built-in method references that are mockable. */
var setTimeout = function(func, wait) { return context.setTimeout.call(root, func, wait); };
/* Built-in method references for those with the same name as other `lodash` methods. */
var nativeCeil = Math.ceil,
nativeFloor = Math.floor,
nativeGetPrototype = Object.getPrototypeOf,
nativeIsFinite = context.isFinite,
nativeJoin = arrayProto.join,
nativeKeys = Object.keys,
nativeMax = Math.max,
nativeMin = Math.min,
nativeParseInt = context.parseInt,
nativeRandom = Math.random,
nativeReplace = stringProto.replace,
nativeReverse = arrayProto.reverse,
nativeSplit = stringProto.split;
/* Built-in method references that are verified to be native. */
var DataView = getNative(context, 'DataView'),
Map = getNative(context, 'Map'),
Promise = getNative(context, 'Promise'),
Set = getNative(context, 'Set'),
WeakMap = getNative(context, 'WeakMap'),
nativeCreate = getNative(Object, 'create');
/** Used to store function metadata. */
var metaMap = WeakMap && new WeakMap;
/** Detect if properties shadowing those on `Object.prototype` are non-enumerable. */
var nonEnumShadows = !propertyIsEnumerable.call({ 'valueOf': 1 }, 'valueOf');
/** Used to lookup unminified function names. */
var realNames = {};
/** Used to detect maps, sets, and weakmaps. */
var dataViewCtorString = toSource(DataView),
mapCtorString = toSource(Map),
promiseCtorString = toSource(Promise),
setCtorString = toSource(Set),
weakMapCtorString = toSource(WeakMap);
/** Used to convert symbols to primitives and strings. */
var symbolProto = Symbol ? Symbol.prototype : undefined,
symbolValueOf = symbolProto ? symbolProto.valueOf : undefined,
symbolToString = symbolProto ? symbolProto.toString : undefined;
/*------------------------------------------------------------------------*/
/**
* Creates a `lodash` object which wraps `value` to enable implicit method
* chain sequences. Methods that operate on and return arrays, collections,
* and functions can be chained together. Methods that retrieve a single value
* or may return a primitive value will automatically end the chain sequence
* and return the unwrapped value. Otherwise, the value must be unwrapped
* with `_#value`.
*
* Explicit chain sequences, which must be unwrapped with `_#value`, may be
* enabled using `_.chain`.
*
* The execution of chained methods is lazy, that is, it's deferred until
* `_#value` is implicitly or explicitly called.
*
* Lazy evaluation allows several methods to support shortcut fusion.
* Shortcut fusion is an optimization to merge iteratee calls; this avoids
* the creation of intermediate arrays and can greatly reduce the number of
* iteratee executions. Sections of a chain sequence qualify for shortcut
* fusion if the section is applied to an array of at least `200` elements
* and any iteratees accept only one argument. The heuristic for whether a
* section qualifies for shortcut fusion is subject to change.
*
* Chaining is supported in custom builds as long as the `_#value` method is
* directly or indirectly included in the build.
*
* In addition to lodash methods, wrappers have `Array` and `String` methods.
*
* The wrapper `Array` methods are:
* `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`
*
* The wrapper `String` methods are:
* `replace` and `split`
*
* The wrapper methods that support shortcut fusion are:
* `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,
* `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,
* `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`
*
* The chainable wrapper methods are:
* `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,
* `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,
* `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,
* `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,
* `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,
* `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,
* `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,
* `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,
* `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,
* `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,
* `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,
* `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,
* `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,
* `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,
* `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,
* `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,
* `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,
* `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,
* `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,
* `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,
* `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,
* `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,
* `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,
* `zipObject`, `zipObjectDeep`, and `zipWith`
*
* The wrapper methods that are **not** chainable by default are:
* `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,
* `cloneDeep`, `cloneDeepWith`, `cloneWith`, `deburr`, `divide`, `each`,
* `eachRight`, `endsWith`, `eq`, `escape`, `escapeRegExp`, `every`, `find`,
* `findIndex`, `findKey`, `findLast`, `findLastIndex`, `findLastKey`, `first`,
* `floor`, `forEach`, `forEachRight`, `forIn`, `forInRight`, `forOwn`,
* `forOwnRight`, `get`, `gt`, `gte`, `has`, `hasIn`, `head`, `identity`,
* `includes`, `indexOf`, `inRange`, `invoke`, `isArguments`, `isArray`,
* `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`, `isBoolean`,
* `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`, `isEqualWith`,
* `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`, `isMap`,
* `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,
* `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,
* `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,
* `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,
* `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,
* `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,
* `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,
* `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,
* `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,
* `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,
* `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,
* `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,
* `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,
* `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,
* `upperFirst`, `value`, and `words`
*
* @name _
* @constructor
* @category Seq
* @param {*} value The value to wrap in a `lodash` instance.
* @returns {Object} Returns the new `lodash` wrapper instance.
* @example
*
* function square(n) {
* return n * n;
* }
*
* var wrapped = _([1, 2, 3]);
*
* // Returns an unwrapped value.
* wrapped.reduce(_.add);
* // => 6
*
* // Returns a wrapped value.
* var squares = wrapped.map(square);
*
* _.isArray(squares);
* // => false
*
* _.isArray(squares.value());
* // => true
*/
function lodash(value) {
if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {
if (value instanceof LodashWrapper) {
return value;
}
if (hasOwnProperty.call(value, '__wrapped__')) {
return wrapperClone(value);
}
}
return new LodashWrapper(value);
}
/**
* The function whose prototype chain sequence wrappers inherit from.
*
* @private
*/
function baseLodash() {
// No operation performed.
}
/**
* The base constructor for creating `lodash` wrapper objects.
*
* @private
* @param {*} value The value to wrap.
* @param {boolean} [chainAll] Enable explicit method chain sequences.
*/
function LodashWrapper(value, chainAll) {
this.__wrapped__ = value;
this.__actions__ = [];
this.__chain__ = !!chainAll;
this.__index__ = 0;
this.__values__ = undefined;
}
/**
* By default, the template delimiters used by lodash are like those in
* embedded Ruby (ERB). Change the following template settings to use
* alternative delimiters.
*
* @static
* @memberOf _
* @type {Object}
*/
lodash.templateSettings = {
/**
* Used to detect `data` property values to be HTML-escaped.
*
* @memberOf _.templateSettings
* @type {RegExp}
*/
'escape': reEscape,
/**
* Used to detect code to be evaluated.
*
* @memberOf _.templateSettings
* @type {RegExp}
*/
'evaluate': reEvaluate,
/**
* Used to detect `data` property values to inject.
*
* @memberOf _.templateSettings
* @type {RegExp}
*/
'interpolate': reInterpolate,
/**
* Used to reference the data object in the template text.
*
* @memberOf _.templateSettings
* @type {string}
*/
'variable': '',
/**
* Used to import variables into the compiled template.
*
* @memberOf _.templateSettings
* @type {Object}
*/
'imports': {
/**
* A reference to the `lodash` function.
*
* @memberOf _.templateSettings.imports
* @type {Function}
*/
'_': lodash
}
};
// Ensure wrappers are instances of `baseLodash`.
lodash.prototype = baseLodash.prototype;
lodash.prototype.constructor = lodash;
LodashWrapper.prototype = baseCreate(baseLodash.prototype);
LodashWrapper.prototype.constructor = LodashWrapper;
/*------------------------------------------------------------------------*/
/**
* Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.
*
* @private
* @constructor
* @param {*} value The value to wrap.
*/
function LazyWrapper(value) {
this.__wrapped__ = value;
this.__actions__ = [];
this.__dir__ = 1;
this.__filtered__ = false;
this.__iteratees__ = [];
this.__takeCount__ = MAX_ARRAY_LENGTH;
this.__views__ = [];
}
/**
* Creates a clone of the lazy wrapper object.
*
* @private
* @name clone
* @memberOf LazyWrapper
* @returns {Object} Returns the cloned `LazyWrapper` object.
*/
function lazyClone() {
var result = new LazyWrapper(this.__wrapped__);
result.__actions__ = copyArray(this.__actions__);
result.__dir__ = this.__dir__;
result.__filtered__ = this.__filtered__;
result.__iteratees__ = copyArray(this.__iteratees__);
result.__takeCount__ = this.__takeCount__;
result.__views__ = copyArray(this.__views__);
return result;
}
/**
* Reverses the direction of lazy iteration.
*
* @private
* @name reverse
* @memberOf LazyWrapper
* @returns {Object} Returns the new reversed `LazyWrapper` object.
*/
function lazyReverse() {
if (this.__filtered__) {
var result = new LazyWrapper(this);
result.__dir__ = -1;
result.__filtered__ = true;
} else {
result = this.clone();
result.__dir__ *= -1;
}
return result;
}
/**
* Extracts the unwrapped value from its lazy wrapper.
*
* @private
* @name value
* @memberOf LazyWrapper
* @returns {*} Returns the unwrapped value.
*/
function lazyValue() {
var array = this.__wrapped__.value(),
dir = this.__dir__,
isArr = isArray(array),
isRight = dir < 0,
arrLength = isArr ? array.length : 0,
view = getView(0, arrLength, this.__views__),
start = view.start,
end = view.end,
length = end - start,
index = isRight ? end : (start - 1),
iteratees = this.__iteratees__,
iterLength = iteratees.length,
resIndex = 0,
takeCount = nativeMin(length, this.__takeCount__);
if (!isArr || arrLength < LARGE_ARRAY_SIZE ||
(arrLength == length && takeCount == length)) {
return baseWrapperValue(array, this.__actions__);
}
var result = [];
outer:
while (length-- && resIndex < takeCount) {
index += dir;
var iterIndex = -1,
value = array[index];
while (++iterIndex < iterLength) {
var data = iteratees[iterIndex],
iteratee = data.iteratee,
type = data.type,
computed = iteratee(value);
if (type == LAZY_MAP_FLAG) {
value = computed;
} else if (!computed) {
if (type == LAZY_FILTER_FLAG) {
continue outer;
} else {
break outer;
}
}
}
result[resIndex++] = value;
}
return result;
}
// Ensure `LazyWrapper` is an instance of `baseLodash`.
LazyWrapper.prototype = baseCreate(baseLodash.prototype);
LazyWrapper.prototype.constructor = LazyWrapper;
/*------------------------------------------------------------------------*/
/**
* Creates a hash object.
*
* @private
* @constructor
* @param {Array} [entries] The key-value pairs to cache.
*/
function Hash(entries) {
var index = -1,
length = entries ? entries.length : 0;
this.clear();
while (++index < length) {
var entry = entries[index];
this.set(entry[0], entry[1]);
}
}
/**
* Removes all key-value entries from the hash.
*
* @private
* @name clear
* @memberOf Hash
*/
function hashClear() {
this.__data__ = nativeCreate ? nativeCreate(null) : {};
}
/**
* Removes `key` and its value from the hash.
*
* @private
* @name delete
* @memberOf Hash
* @param {Object} hash The hash to modify.
* @param {string} key The key of the value to remove.
* @returns {boolean} Returns `true` if the entry was removed, else `false`.
*/
function hashDelete(key) {
return this.has(key) && delete this.__data__[key];
}
/**
* Gets the hash value for `key`.
*
* @private
* @name get
* @memberOf Hash
* @param {string} key The key of the value to get.
* @returns {*} Returns the entry value.
*/
function hashGet(key) {
var data = this.__data__;
if (nativeCreate) {
var result = data[key];
return result === HASH_UNDEFINED ? undefined : result;
}
return hasOwnProperty.call(data, key) ? data[key] : undefined;
}
/**
* Checks if a hash value for `key` exists.
*
* @private
* @name has
* @memberOf Hash
* @param {string} key The key of the entry to check.
* @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
*/
function hashHas(key) {
var data = this.__data__;
return nativeCreate ? data[key] !== undefined : hasOwnProperty.call(data, key);
}
/**
* Sets the hash `key` to `value`.
*
* @private
* @name set
* @memberOf Hash
* @param {string} key The key of the value to set.
* @param {*} value The value to set.
* @returns {Object} Returns the hash instance.
*/
function hashSet(key, value) {
var data = this.__data__;
data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;
return this;
}
// Add methods to `Hash`.
Hash.prototype.clear = hashClear;
Hash.prototype['delete'] = hashDelete;
Hash.prototype.get = hashGet;
Hash.prototype.has = hashHas;
Hash.prototype.set = hashSet;
/*------------------------------------------------------------------------*/
/**
* Creates an list cache object.
*
* @private
* @constructor
* @param {Array} [entries] The key-value pairs to cache.
*/
function ListCache(entries) {
var index = -1,
length = entries ? entries.length : 0;
this.clear();
while (++index < length) {
var entry = entries[index];
this.set(entry[0], entry[1]);
}
}
/**
* Removes all key-value entries from the list cache.
*
* @private
* @name clear
* @memberOf ListCache
*/
function listCacheClear() {
this.__data__ = [];
}
/**
* Removes `key` and its value from the list cache.
*
* @private
* @name delete
* @memberOf ListCache
* @param {string} key The key of the value to remove.
* @returns {boolean} Returns `true` if the entry was removed, else `false`.
*/
function listCacheDelete(key) {
var data = this.__data__,
index = assocIndexOf(data, key);
if (index < 0) {
return false;
}
var lastIndex = data.length - 1;
if (index == lastIndex) {
data.pop();
} else {
splice.call(data, index, 1);
}
return true;
}
/**
* Gets the list cache value for `key`.
*
* @private
* @name get
* @memberOf ListCache
* @param {string} key The key of the value to get.
* @returns {*} Returns the entry value.
*/
function listCacheGet(key) {
var data = this.__data__,
index = assocIndexOf(data, key);
return index < 0 ? undefined : data[index][1];
}
/**
* Checks if a list cache value for `key` exists.
*
* @private
* @name has
* @memberOf ListCache
* @param {string} key The key of the entry to check.
* @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
*/
function listCacheHas(key) {
return assocIndexOf(this.__data__, key) > -1;
}
/**
* Sets the list cache `key` to `value`.
*
* @private
* @name set
* @memberOf ListCache
* @param {string} key The key of the value to set.
* @param {*} value The value to set.
* @returns {Object} Returns the list cache instance.
*/
function listCacheSet(key, value) {
var data = this.__data__,
index = assocIndexOf(data, key);
if (index < 0) {
data.push([key, value]);
} else {
data[index][1] = value;
}
return this;
}
// Add methods to `ListCache`.
ListCache.prototype.clear = listCacheClear;
ListCache.prototype['delete'] = listCacheDelete;
ListCache.prototype.get = listCacheGet;
ListCache.prototype.has = listCacheHas;
ListCache.prototype.set = listCacheSet;
/*------------------------------------------------------------------------*/
/**
* Creates a map cache object to store key-value pairs.
*
* @private
* @constructor
* @param {Array} [entries] The key-value pairs to cache.
*/
function MapCache(entries) {
var index = -1,
length = entries ? entries.length : 0;
this.clear();
while (++index < length) {
var entry = entries[index];
this.set(entry[0], entry[1]);
}
}
/**
* Removes all key-value entries from the map.
*
* @private
* @name clear
* @memberOf MapCache
*/
function mapCacheClear() {
this.__data__ = {
'hash': new Hash,
'map': new (Map || ListCache),
'string': new Hash
};
}
/**
* Removes `key` and its value from the map.
*
* @private
* @name delete
* @memberOf MapCache
* @param {string} key The key of the value to remove.
* @returns {boolean} Returns `true` if the entry was removed, else `false`.
*/
function mapCacheDelete(key) {
return getMapData(this, key)['delete'](key);
}
/**
* Gets the map value for `key`.
*
* @private
* @name get
* @memberOf MapCache
* @param {string} key The key of the value to get.
* @returns {*} Returns the entry value.
*/
function mapCacheGet(key) {
return getMapData(this, key).get(key);
}
/**
* Checks if a map value for `key` exists.
*
* @private
* @name has
* @memberOf MapCache
* @param {string} key The key of the entry to check.
* @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
*/
function mapCacheHas(key) {
return getMapData(this, key).has(key);
}
/**
* Sets the map `key` to `value`.
*
* @private
* @name set
* @memberOf MapCache
* @param {string} key The key of the value to set.
* @param {*} value The value to set.
* @returns {Object} Returns the map cache instance.
*/
function mapCacheSet(key, value) {
getMapData(this, key).set(key, value);
return this;
}
// Add methods to `MapCache`.
MapCache.prototype.clear = mapCacheClear;
MapCache.prototype['delete'] = mapCacheDelete;
MapCache.prototype.get = mapCacheGet;
MapCache.prototype.has = mapCacheHas;
MapCache.prototype.set = mapCacheSet;
/*------------------------------------------------------------------------*/
/**
*
* Creates an array cache object to store unique values.
*
* @private
* @constructor
* @param {Array} [values] The values to cache.
*/
function SetCache(values) {
var index = -1,
length = values ? values.length : 0;
this.__data__ = new MapCache;
while (++index < length) {
this.add(values[index]);
}
}
/**
* Adds `value` to the array cache.
*
* @private
* @name add
* @memberOf SetCache
* @alias push
* @param {*} value The value to cache.
* @returns {Object} Returns the cache instance.
*/
function setCacheAdd(value) {
this.__data__.set(value, HASH_UNDEFINED);
return this;
}
/**
* Checks if `value` is in the array cache.
*
* @private
* @name has
* @memberOf SetCache
* @param {*} value The value to search for.
* @returns {number} Returns `true` if `value` is found, else `false`.
*/
function setCacheHas(value) {
return this.__data__.has(value);
}
// Add methods to `SetCache`.
SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;
SetCache.prototype.has = setCacheHas;
/*------------------------------------------------------------------------*/
/**
* Creates a stack cache object to store key-value pairs.
*
* @private
* @constructor
* @param {Array} [entries] The key-value pairs to cache.
*/
function Stack(entries) {
this.__data__ = new ListCache(entries);
}
/**
* Removes all key-value entries from the stack.
*
* @private
* @name clear
* @memberOf Stack
*/
function stackClear() {
this.__data__ = new ListCache;
}
/**
* Removes `key` and its value from the stack.
*
* @private
* @name delete
* @memberOf Stack
* @param {string} key The key of the value to remove.
* @returns {boolean} Returns `true` if the entry was removed, else `false`.
*/
function stackDelete(key) {
return this.__data__['delete'](key);
}
/**
* Gets the stack value for `key`.
*
* @private
* @name get
* @memberOf Stack
* @param {string} key The key of the value to get.
* @returns {*} Returns the entry value.
*/
function stackGet(key) {
return this.__data__.get(key);
}
/**
* Checks if a stack value for `key` exists.
*
* @private
* @name has
* @memberOf Stack
* @param {string} key The key of the entry to check.
* @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
*/
function stackHas(key) {
return this.__data__.has(key);
}
/**
* Sets the stack `key` to `value`.
*
* @private
* @name set
* @memberOf Stack
* @param {string} key The key of the value to set.
* @param {*} value The value to set.
* @returns {Object} Returns the stack cache instance.
*/
function stackSet(key, value) {
var cache = this.__data__;
if (cache instanceof ListCache && cache.__data__.length == LARGE_ARRAY_SIZE) {
cache = this.__data__ = new MapCache(cache.__data__);
}
cache.set(key, value);
return this;
}
// Add methods to `Stack`.
Stack.prototype.clear = stackClear;
Stack.prototype['delete'] = stackDelete;
Stack.prototype.get = stackGet;
Stack.prototype.has = stackHas;
Stack.prototype.set = stackSet;
/*------------------------------------------------------------------------*/
/**
* Used by `_.defaults` to customize its `_.assignIn` use.
*
* @private
* @param {*} objValue The destination value.
* @param {*} srcValue The source value.
* @param {string} key The key of the property to assign.
* @param {Object} object The parent object of `objValue`.
* @returns {*} Returns the value to assign.
*/
function assignInDefaults(objValue, srcValue, key, object) {
if (objValue === undefined ||
(eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) {
return srcValue;
}
return objValue;
}
/**
* This function is like `assignValue` except that it doesn't assign
* `undefined` values.
*
* @private
* @param {Object} object The object to modify.
* @param {string} key The key of the property to assign.
* @param {*} value The value to assign.
*/
function assignMergeValue(object, key, value) {
if ((value !== undefined && !eq(object[key], value)) ||
(typeof key == 'number' && value === undefined && !(key in object))) {
object[key] = value;
}
}
/**
* Assigns `value` to `key` of `object` if the existing value is not equivalent
* using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
* for equality comparisons.
*
* @private
* @param {Object} object The object to modify.
* @param {string} key The key of the property to assign.
* @param {*} value The value to assign.
*/
function assignValue(object, key, value) {
var objValue = object[key];
if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||
(value === undefined && !(key in object))) {
object[key] = value;
}
}
/**
* Gets the index at which the `key` is found in `array` of key-value pairs.
*
* @private
* @param {Array} array The array to search.
* @param {*} key The key to search for.
* @returns {number} Returns the index of the matched value, else `-1`.
*/
function assocIndexOf(array, key) {
var length = array.length;
while (length--) {
if (eq(array[length][0], key)) {
return length;
}
}
return -1;
}
/**
* Aggregates elements of `collection` on `accumulator` with keys transformed
* by `iteratee` and values set by `setter`.
*
* @private
* @param {Array|Object} collection The collection to iterate over.
* @param {Function} setter The function to set `accumulator` values.
* @param {Function} iteratee The iteratee to transform keys.
* @param {Object} accumulator The initial aggregated object.
* @returns {Function} Returns `accumulator`.
*/
function baseAggregator(collection, setter, iteratee, accumulator) {
baseEach(collection, function(value, key, collection) {
setter(accumulator, value, iteratee(value), collection);
});
return accumulator;
}
/**
* The base implementation of `_.assign` without support for multiple sources
* or `customizer` functions.
*
* @private
* @param {Object} object The destination object.
* @param {Object} source The source object.
* @returns {Object} Returns `object`.
*/
function baseAssign(object, source) {
return object && copyObject(source, keys(source), object);
}
/**
* The base implementation of `_.at` without support for individual paths.
*
* @private
* @param {Object} object The object to iterate over.
* @param {string[]} paths The property paths of elements to pick.
* @returns {Array} Returns the picked elements.
*/
function baseAt(object, paths) {
var index = -1,
isNil = object == null,
length = paths.length,
result = Array(length);
while (++index < length) {
result[index] = isNil ? undefined : get(object, paths[index]);
}
return result;
}
/**
* The base implementation of `_.clamp` which doesn't coerce arguments to numbers.
*
* @private
* @param {number} number The number to clamp.
* @param {number} [lower] The lower bound.
* @param {number} upper The upper bound.
* @returns {number} Returns the clamped number.
*/
function baseClamp(number, lower, upper) {
if (number === number) {
if (upper !== undefined) {
number = number <= upper ? number : upper;
}
if (lower !== undefined) {
number = number >= lower ? number : lower;
}
}
return number;
}
/**
* The base implementation of `_.clone` and `_.cloneDeep` which tracks
* traversed objects.
*
* @private
* @param {*} value The value to clone.
* @param {boolean} [isDeep] Specify a deep clone.
* @param {boolean} [isFull] Specify a clone including symbols.
* @param {Function} [customizer] The function to customize cloning.
* @param {string} [key] The key of `value`.
* @param {Object} [object] The parent object of `value`.
* @param {Object} [stack] Tracks traversed objects and their clone counterparts.
* @returns {*} Returns the cloned value.
*/
function baseClone(value, isDeep, isFull, customizer, key, object, stack) {
var result;
if (customizer) {
result = object ? customizer(value, key, object, stack) : customizer(value);
}
if (result !== undefined) {
return result;
}
if (!isObject(value)) {
return value;
}
var isArr = isArray(value);
if (isArr) {
result = initCloneArray(value);
if (!isDeep) {
return copyArray(value, result);
}
} else {
var tag = getTag(value),
isFunc = tag == funcTag || tag == genTag;
if (isBuffer(value)) {
return cloneBuffer(value, isDeep);
}
if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
if (isHostObject(value)) {
return object ? value : {};
}
result = initCloneObject(isFunc ? {} : value);
if (!isDeep) {
return copySymbols(value, baseAssign(result, value));
}
} else {
if (!cloneableTags[tag]) {
return object ? value : {};
}
result = initCloneByTag(value, tag, baseClone, isDeep);
}
}
// Check for circular references and return its corresponding clone.
stack || (stack = new Stack);
var stacked = stack.get(value);
if (stacked) {
return stacked;
}
stack.set(value, result);
if (!isArr) {
var props = isFull ? getAllKeys(value) : keys(value);
}
// Recursively populate clone (susceptible to call stack limits).
arrayEach(props || value, function(subValue, key) {
if (props) {
key = subValue;
subValue = value[key];
}
assignValue(result, key, baseClone(subValue, isDeep, isFull, customizer, key, value, stack));
});
return result;
}
/**
* The base implementation of `_.conforms` which doesn't clone `source`.
*
* @private
* @param {Object} source The object of property predicates to conform to.
* @returns {Function} Returns the new spec function.
*/
function baseConforms(source) {
var props = keys(source),
length = props.length;
return function(object) {
if (object == null) {
return !length;
}
var index = length;
while (index--) {
var key = props[index],
predicate = source[key],
value = object[key];
if ((value === undefined &&
!(key in Object(object))) || !predicate(value)) {
return false;
}
}
return true;
};
}
/**
* The base implementation of `_.create` without support for assigning
* properties to the created object.
*
* @private
* @param {Object} prototype The object to inherit from.
* @returns {Object} Returns the new object.
*/
function baseCreate(proto) {
return isObject(proto) ? objectCreate(proto) : {};
}
/**
* The base implementation of `_.delay` and `_.defer` which accepts an array
* of `func` arguments.
*
* @private
* @param {Function} func The function to delay.
* @param {number} wait The number of milliseconds to delay invocation.
* @param {Object} args The arguments to provide to `func`.
* @returns {number} Returns the timer id.
*/
function baseDelay(func, wait, args) {
if (typeof func != 'function') {
throw new TypeError(FUNC_ERROR_TEXT);
}
return setTimeout(function() { func.apply(undefined, args); }, wait);
}
/**
* The base implementation of methods like `_.difference` without support
* for excluding multiple arrays or iteratee shorthands.
*
* @private
* @param {Array} array The array to inspect.
* @param {Array} values The values to exclude.
* @param {Function} [iteratee] The iteratee invoked per element.
* @param {Function} [comparator] The comparator invoked per element.
* @returns {Array} Returns the new array of filtered values.
*/
function baseDifference(array, values, iteratee, comparator) {
var index = -1,
includes = arrayIncludes,
isCommon = true,
length = array.length,
result = [],
valuesLength = values.length;
if (!length) {
return result;
}
if (iteratee) {
values = arrayMap(values, baseUnary(iteratee));
}
if (comparator) {
includes = arrayIncludesWith;
isCommon = false;
}
else if (values.length >= LARGE_ARRAY_SIZE) {
includes = cacheHas;
isCommon = false;
values = new SetCache(values);
}
outer:
while (++index < length) {
var value = array[index],
computed = iteratee ? iteratee(value) : value;
value = (comparator || value !== 0) ? value : 0;
if (isCommon && computed === computed) {
var valuesIndex = valuesLength;
while (valuesIndex--) {
if (values[valuesIndex] === computed) {
continue outer;
}
}
result.push(value);
}
else if (!includes(values, computed, comparator)) {
result.push(value);
}
}
return result;
}
/**
* The base implementation of `_.forEach` without support for iteratee shorthands.
*
* @private
* @param {Array|Object} collection The collection to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @returns {Array|Object} Returns `collection`.
*/
var baseEach = createBaseEach(baseForOwn);
/**
* The base implementation of `_.forEachRight` without support for iteratee shorthands.
*
* @private
* @param {Array|Object} collection The collection to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @returns {Array|Object} Returns `collection`.
*/
var baseEachRight = createBaseEach(baseForOwnRight, true);
/**
* The base implementation of `_.every` without support for iteratee shorthands.
*
* @private
* @param {Array|Object} collection The collection to iterate over.
* @param {Function} predicate The function invoked per iteration.
* @returns {boolean} Returns `true` if all elements pass the predicate check,
* else `false`
*/
function baseEvery(collection, predicate) {
var result = true;
baseEach(collection, function(value, index, collection) {
result = !!predicate(value, index, collection);
return result;
});
return result;
}
/**
* The base implementation of methods like `_.max` and `_.min` which accepts a
* `comparator` to determine the extremum value.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Function} iteratee The iteratee invoked per iteration.
* @param {Function} comparator The comparator used to compare values.
* @returns {*} Returns the extremum value.
*/
function baseExtremum(array, iteratee, comparator) {
var index = -1,
length = array.length;
while (++index < length) {
var value = array[index],
current = iteratee(value);
if (current != null && (computed === undefined
? (current === current && !isSymbol(current))
: comparator(current, computed)
)) {
var computed = current,
result = value;
}
}
return result;
}
/**
* The base implementation of `_.fill` without an iteratee call guard.
*
* @private
* @param {Array} array The array to fill.
* @param {*} value The value to fill `array` with.
* @param {number} [start=0] The start position.
* @param {number} [end=array.length] The end position.
* @returns {Array} Returns `array`.
*/
function baseFill(array, value, start, end) {
var length = array.length;
start = toInteger(start);
if (start < 0) {
start = -start > length ? 0 : (length + start);
}
end = (end === undefined || end > length) ? length : toInteger(end);
if (end < 0) {
end += length;
}
end = start > end ? 0 : toLength(end);
while (start < end) {
array[start++] = value;
}
return array;
}
/**
* The base implementation of `_.filter` without support for iteratee shorthands.
*
* @private
* @param {Array|Object} collection The collection to iterate over.
* @param {Function} predicate The function invoked per iteration.
* @returns {Array} Returns the new filtered array.
*/
function baseFilter(collection, predicate) {
var result = [];
baseEach(collection, function(value, index, collection) {
if (predicate(value, index, collection)) {
result.push(value);
}
});
return result;
}
/**
* The base implementation of `_.flatten` with support for restricting flattening.
*
* @private
* @param {Array} array The array to flatten.
* @param {number} depth The maximum recursion depth.
* @param {boolean} [predicate=isFlattenable] The function invoked per iteration.
* @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.
* @param {Array} [result=[]] The initial result value.
* @returns {Array} Returns the new flattened array.
*/
function baseFlatten(array, depth, predicate, isStrict, result) {
var index = -1,
length = array.length;
predicate || (predicate = isFlattenable);
result || (result = []);
while (++index < length) {
var value = array[index];
if (depth > 0 && predicate(value)) {
if (depth > 1) {
// Recursively flatten arrays (susceptible to call stack limits).
baseFlatten(value, depth - 1, predicate, isStrict, result);
} else {
arrayPush(result, value);
}
} else if (!isStrict) {
result[result.length] = value;
}
}
return result;
}
/**
* The base implementation of `baseForOwn` which iterates over `object`
* properties returned by `keysFunc` and invokes `iteratee` for each property.
* Iteratee functions may exit iteration early by explicitly returning `false`.
*
* @private
* @param {Object} object The object to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @param {Function} keysFunc The function to get the keys of `object`.
* @returns {Object} Returns `object`.
*/
var baseFor = createBaseFor();
/**
* This function is like `baseFor` except that it iterates over properties
* in the opposite order.
*
* @private
* @param {Object} object The object to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @param {Function} keysFunc The function to get the keys of `object`.
* @returns {Object} Returns `object`.
*/
var baseForRight = createBaseFor(true);
/**
* The base implementation of `_.forOwn` without support for iteratee shorthands.
*
* @private
* @param {Object} object The object to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @returns {Object} Returns `object`.
*/
function baseForOwn(object, iteratee) {
return object && baseFor(object, iteratee, keys);
}
/**
* The base implementation of `_.forOwnRight` without support for iteratee shorthands.
*
* @private
* @param {Object} object The object to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @returns {Object} Returns `object`.
*/
function baseForOwnRight(object, iteratee) {
return object && baseForRight(object, iteratee, keys);
}
/**
* The base implementation of `_.functions` which creates an array of
* `object` function property names filtered from `props`.
*
* @private
* @param {Object} object The object to inspect.
* @param {Array} props The property names to filter.
* @returns {Array} Returns the function names.
*/
function baseFunctions(object, props) {
return arrayFilter(props, function(key) {
return isFunction(object[key]);
});
}
/**
* The base implementation of `_.get` without support for default values.
*
* @private
* @param {Object} object The object to query.
* @param {Array|string} path The path of the property to get.
* @returns {*} Returns the resolved value.
*/
function baseGet(object, path) {
path = isKey(path, object) ? [path] : castPath(path);
var index = 0,
length = path.length;
while (object != null && index < length) {
object = object[toKey(path[index++])];
}
return (index && index == length) ? object : undefined;
}
/**
* The base implementation of `getAllKeys` and `getAllKeysIn` which uses
* `keysFunc` and `symbolsFunc` to get the enumerable property names and
* symbols of `object`.
*
* @private
* @param {Object} object The object to query.
* @param {Function} keysFunc The function to get the keys of `object`.
* @param {Function} symbolsFunc The function to get the symbols of `object`.
* @returns {Array} Returns the array of property names and symbols.
*/
function baseGetAllKeys(object, keysFunc, symbolsFunc) {
var result = keysFunc(object);
return isArray(object) ? result : arrayPush(result, symbolsFunc(object));
}
/**
* The base implementation of `_.gt` which doesn't coerce arguments to numbers.
*
* @private
* @param {*} value The value to compare.
* @param {*} other The other value to compare.
* @returns {boolean} Returns `true` if `value` is greater than `other`,
* else `false`.
*/
function baseGt(value, other) {
return value > other;
}
/**
* The base implementation of `_.has` without support for deep paths.
*
* @private
* @param {Object} [object] The object to query.
* @param {Array|string} key The key to check.
* @returns {boolean} Returns `true` if `key` exists, else `false`.
*/
function baseHas(object, key) {
// Avoid a bug in IE 10-11 where objects with a [[Prototype]] of `null`,
// that are composed entirely of index properties, return `false` for
// `hasOwnProperty` checks of them.
return object != null &&
(hasOwnProperty.call(object, key) ||
(typeof object == 'object' && key in object && getPrototype(object) === null));
}
/**
* The base implementation of `_.hasIn` without support for deep paths.
*
* @private
* @param {Object} [object] The object to query.
* @param {Array|string} key The key to check.
* @returns {boolean} Returns `true` if `key` exists, else `false`.
*/
function baseHasIn(object, key) {
return object != null && key in Object(object);
}
/**
* The base implementation of `_.inRange` which doesn't coerce arguments to numbers.
*
* @private
* @param {number} number The number to check.
* @param {number} start The start of the range.
* @param {number} end The end of the range.
* @returns {boolean} Returns `true` if `number` is in the range, else `false`.
*/
function baseInRange(number, start, end) {
return number >= nativeMin(start, end) && number < nativeMax(start, end);
}
/**
* The base implementation of methods like `_.intersection`, without support
* for iteratee shorthands, that accepts an array of arrays to inspect.
*
* @private
* @param {Array} arrays The arrays to inspect.
* @param {Function} [iteratee] The iteratee invoked per element.
* @param {Function} [comparator] The comparator invoked per element.
* @returns {Array} Returns the new array of shared values.
*/
function baseIntersection(arrays, iteratee, comparator) {
var includes = comparator ? arrayIncludesWith : arrayIncludes,
length = arrays[0].length,
othLength = arrays.length,
othIndex = othLength,
caches = Array(othLength),
maxLength = Infinity,
result = [];
while (othIndex--) {
var array = arrays[othIndex];
if (othIndex && iteratee) {
array = arrayMap(array, baseUnary(iteratee));
}
maxLength = nativeMin(array.length, maxLength);
caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120))
? new SetCache(othIndex && array)
: undefined;
}
array = arrays[0];
var index = -1,
seen = caches[0];
outer:
while (++index < length && result.length < maxLength) {
var value = array[index],
computed = iteratee ? iteratee(value) : value;
value = (comparator || value !== 0) ? value : 0;
if (!(seen
? cacheHas(seen, computed)
: includes(result, computed, comparator)
)) {
othIndex = othLength;
while (--othIndex) {
var cache = caches[othIndex];
if (!(cache
? cacheHas(cache, computed)
: includes(arrays[othIndex], computed, comparator))
) {
continue outer;
}
}
if (seen) {
seen.push(computed);
}
result.push(value);
}
}
return result;
}
/**
* The base implementation of `_.invert` and `_.invertBy` which inverts
* `object` with values transformed by `iteratee` and set by `setter`.
*
* @private
* @param {Object} object The object to iterate over.
* @param {Function} setter The function to set `accumulator` values.
* @param {Function} iteratee The iteratee to transform values.
* @param {Object} accumulator The initial inverted object.
* @returns {Function} Returns `accumulator`.
*/
function baseInverter(object, setter, iteratee, accumulator) {
baseForOwn(object, function(value, key, object) {
setter(accumulator, iteratee(value), key, object);
});
return accumulator;
}
/**
* The base implementation of `_.invoke` without support for individual
* method arguments.
*
* @private
* @param {Object} object The object to query.
* @param {Array|string} path The path of the method to invoke.
* @param {Array} args The arguments to invoke the method with.
* @returns {*} Returns the result of the invoked method.
*/
function baseInvoke(object, path, args) {
if (!isKey(path, object)) {
path = castPath(path);
object = parent(object, path);
path = last(path);
}
var func = object == null ? object : object[toKey(path)];
return func == null ? undefined : apply(func, object, args);
}
/**
* The base implementation of `_.isEqual` which supports partial comparisons
* and tracks traversed objects.
*
* @private
* @param {*} value The value to compare.
* @param {*} other The other value to compare.
* @param {Function} [customizer] The function to customize comparisons.
* @param {boolean} [bitmask] The bitmask of comparison flags.
* The bitmask may be composed of the following flags:
* 1 - Unordered comparison
* 2 - Partial comparison
* @param {Object} [stack] Tracks traversed `value` and `other` objects.
* @returns {boolean} Returns `true` if the values are equivalent, else `false`.
*/
function baseIsEqual(value, other, customizer, bitmask, stack) {
if (value === other) {
return true;
}
if (value == null || other == null || (!isObject(value) && !isObjectLike(other))) {
return value !== value && other !== other;
}
return baseIsEqualDeep(value, other, baseIsEqual, customizer, bitmask, stack);
}
/**
* A specialized version of `baseIsEqual` for arrays and objects which performs
* deep comparisons and tracks traversed objects enabling objects with circular
* references to be compared.
*
* @private
* @param {Object} object The object to compare.
* @param {Object} other The other object to compare.
* @param {Function} equalFunc The function to determine equivalents of values.
* @param {Function} [customizer] The function to customize comparisons.
* @param {number} [bitmask] The bitmask of comparison flags. See `baseIsEqual`
* for more details.
* @param {Object} [stack] Tracks traversed `object` and `other` objects.
* @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
*/
function baseIsEqualDeep(object, other, equalFunc, customizer, bitmask, stack) {
var objIsArr = isArray(object),
othIsArr = isArray(other),
objTag = arrayTag,
othTag = arrayTag;
if (!objIsArr) {
objTag = getTag(object);
objTag = objTag == argsTag ? objectTag : objTag;
}
if (!othIsArr) {
othTag = getTag(other);
othTag = othTag == argsTag ? objectTag : othTag;
}
var objIsObj = objTag == objectTag && !isHostObject(object),
othIsObj = othTag == objectTag && !isHostObject(other),
isSameTag = objTag == othTag;
if (isSameTag && !objIsObj) {
stack || (stack = new Stack);
return (objIsArr || isTypedArray(object))
? equalArrays(object, other, equalFunc, customizer, bitmask, stack)
: equalByTag(object, other, objTag, equalFunc, customizer, bitmask, stack);
}
if (!(bitmask & PARTIAL_COMPARE_FLAG)) {
var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');
if (objIsWrapped || othIsWrapped) {
var objUnwrapped = objIsWrapped ? object.value() : object,
othUnwrapped = othIsWrapped ? other.value() : other;
stack || (stack = new Stack);
return equalFunc(objUnwrapped, othUnwrapped, customizer, bitmask, stack);
}
}
if (!isSameTag) {
return false;
}
stack || (stack = new Stack);
return equalObjects(object, other, equalFunc, customizer, bitmask, stack);
}
/**
* The base implementation of `_.isMatch` without support for iteratee shorthands.
*
* @private
* @param {Object} object The object to inspect.
* @param {Object} source The object of property values to match.
* @param {Array} matchData The property names, values, and compare flags to match.
* @param {Function} [customizer] The function to customize comparisons.
* @returns {boolean} Returns `true` if `object` is a match, else `false`.
*/
function baseIsMatch(object, source, matchData, customizer) {
var index = matchData.length,
length = index,
noCustomizer = !customizer;
if (object == null) {
return !length;
}
object = Object(object);
while (index--) {
var data = matchData[index];
if ((noCustomizer && data[2])
? data[1] !== object[data[0]]
: !(data[0] in object)
) {
return false;
}
}
while (++index < length) {
data = matchData[index];
var key = data[0],
objValue = object[key],
srcValue = data[1];
if (noCustomizer && data[2]) {
if (objValue === undefined && !(key in object)) {
return false;
}
} else {
var stack = new Stack;
if (customizer) {
var result = customizer(objValue, srcValue, key, object, source, stack);
}
if (!(result === undefined
? baseIsEqual(srcValue, objValue, customizer, UNORDERED_COMPARE_FLAG | PARTIAL_COMPARE_FLAG, stack)
: result
)) {
return false;
}
}
}
return true;
}
/**
* The base implementation of `_.isNative` without bad shim checks.
*
* @private
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a native function,
* else `false`.
*/
function baseIsNative(value) {
if (!isObject(value) || isMasked(value)) {
return false;
}
var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor;
return pattern.test(toSource(value));
}
/**
* The base implementation of `_.iteratee`.
*
* @private
* @param {*} [value=_.identity] The value to convert to an iteratee.
* @returns {Function} Returns the iteratee.
*/
function baseIteratee(value) {
// Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.
// See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.
if (typeof value == 'function') {
return value;
}
if (value == null) {
return identity;
}
if (typeof value == 'object') {
return isArray(value)
? baseMatchesProperty(value[0], value[1])
: baseMatches(value);
}
return property(value);
}
/**
* The base implementation of `_.keys` which doesn't skip the constructor
* property of prototypes or treat sparse arrays as dense.
*
* @private
* @param {Object} object The object to query.
* @returns {Array} Returns the array of property names.
*/
function baseKeys(object) {
return nativeKeys(Object(object));
}
/**
* The base implementation of `_.keysIn` which doesn't skip the constructor
* property of prototypes or treat sparse arrays as dense.
*
* @private
* @param {Object} object The object to query.
* @returns {Array} Returns the array of property names.
*/
function baseKeysIn(object) {
object = object == null ? object : Object(object);
var result = [];
for (var key in object) {
result.push(key);
}
return result;
}
// Fallback for IE < 9 with es6-shim.
if (enumerate && !propertyIsEnumerable.call({ 'valueOf': 1 }, 'valueOf')) {
baseKeysIn = function(object) {
return iteratorToArray(enumerate(object));
};
}
/**
* The base implementation of `_.lt` which doesn't coerce arguments to numbers.
*
* @private
* @param {*} value The value to compare.
* @param {*} other The other value to compare.
* @returns {boolean} Returns `true` if `value` is less than `other`,
* else `false`.
*/
function baseLt(value, other) {
return value < other;
}
/**
* The base implementation of `_.map` without support for iteratee shorthands.
*
* @private
* @param {Array|Object} collection The collection to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @returns {Array} Returns the new mapped array.
*/
function baseMap(collection, iteratee) {
var index = -1,
result = isArrayLike(collection) ? Array(collection.length) : [];
baseEach(collection, function(value, key, collection) {
result[++index] = iteratee(value, key, collection);
});
return result;
}
/**
* The base implementation of `_.matches` which doesn't clone `source`.
*
* @private
* @param {Object} source The object of property values to match.
* @returns {Function} Returns the new spec function.
*/
function baseMatches(source) {
var matchData = getMatchData(source);
if (matchData.length == 1 && matchData[0][2]) {
return matchesStrictComparable(matchData[0][0], matchData[0][1]);
}
return function(object) {
return object === source || baseIsMatch(object, source, matchData);
};
}
/**
* The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.
*
* @private
* @param {string} path The path of the property to get.
* @param {*} srcValue The value to match.
* @returns {Function} Returns the new spec function.
*/
function baseMatchesProperty(path, srcValue) {
if (isKey(path) && isStrictComparable(srcValue)) {
return matchesStrictComparable(toKey(path), srcValue);
}
return function(object) {
var objValue = get(object, path);
return (objValue === undefined && objValue === srcValue)
? hasIn(object, path)
: baseIsEqual(srcValue, objValue, undefined, UNORDERED_COMPARE_FLAG | PARTIAL_COMPARE_FLAG);
};
}
/**
* The base implementation of `_.merge` without support for multiple sources.
*
* @private
* @param {Object} object The destination object.
* @param {Object} source The source object.
* @param {number} srcIndex The index of `source`.
* @param {Function} [customizer] The function to customize merged values.
* @param {Object} [stack] Tracks traversed source values and their merged
* counterparts.
*/
function baseMerge(object, source, srcIndex, customizer, stack) {
if (object === source) {
return;
}
if (!(isArray(source) || isTypedArray(source))) {
var props = keysIn(source);
}
arrayEach(props || source, function(srcValue, key) {
if (props) {
key = srcValue;
srcValue = source[key];
}
if (isObject(srcValue)) {
stack || (stack = new Stack);
baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);
}
else {
var newValue = customizer
? customizer(object[key], srcValue, (key + ''), object, source, stack)
: undefined;
if (newValue === undefined) {
newValue = srcValue;
}
assignMergeValue(object, key, newValue);
}
});
}
/**
* A specialized version of `baseMerge` for arrays and objects which performs
* deep merges and tracks traversed objects enabling objects with circular
* references to be merged.
*
* @private
* @param {Object} object The destination object.
* @param {Object} source The source object.
* @param {string} key The key of the value to merge.
* @param {number} srcIndex The index of `source`.
* @param {Function} mergeFunc The function to merge values.
* @param {Function} [customizer] The function to customize assigned values.
* @param {Object} [stack] Tracks traversed source values and their merged
* counterparts.
*/
function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {
var objValue = object[key],
srcValue = source[key],
stacked = stack.get(srcValue);
if (stacked) {
assignMergeValue(object, key, stacked);
return;
}
var newValue = customizer
? customizer(objValue, srcValue, (key + ''), object, source, stack)
: undefined;
var isCommon = newValue === undefined;
if (isCommon) {
newValue = srcValue;
if (isArray(srcValue) || isTypedArray(srcValue)) {
if (isArray(objValue)) {
newValue = objValue;
}
else if (isArrayLikeObject(objValue)) {
newValue = copyArray(objValue);
}
else {
isCommon = false;
newValue = baseClone(srcValue, true);
}
}
else if (isPlainObject(srcValue) || isArguments(srcValue)) {
if (isArguments(objValue)) {
newValue = toPlainObject(objValue);
}
else if (!isObject(objValue) || (srcIndex && isFunction(objValue))) {
isCommon = false;
newValue = baseClone(srcValue, true);
}
else {
newValue = objValue;
}
}
else {
isCommon = false;
}
}
stack.set(srcValue, newValue);
if (isCommon) {
// Recursively merge objects and arrays (susceptible to call stack limits).
mergeFunc(newValue, srcValue, srcIndex, customizer, stack);
}
stack['delete'](srcValue);
assignMergeValue(object, key, newValue);
}
/**
* The base implementation of `_.nth` which doesn't coerce `n` to an integer.
*
* @private
* @param {Array} array The array to query.
* @param {number} n The index of the element to return.
* @returns {*} Returns the nth element of `array`.
*/
function baseNth(array, n) {
var length = array.length;
if (!length) {
return;
}
n += n < 0 ? length : 0;
return isIndex(n, length) ? array[n] : undefined;
}
/**
* The base implementation of `_.orderBy` without param guards.
*
* @private
* @param {Array|Object} collection The collection to iterate over.
* @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
* @param {string[]} orders The sort orders of `iteratees`.
* @returns {Array} Returns the new sorted array.
*/
function baseOrderBy(collection, iteratees, orders) {
var index = -1;
iteratees = arrayMap(iteratees.length ? iteratees : [identity], baseUnary(getIteratee()));
var result = baseMap(collection, function(value, key, collection) {
var criteria = arrayMap(iteratees, function(iteratee) {
return iteratee(value);
});
return { 'criteria': criteria, 'index': ++index, 'value': value };
});
return baseSortBy(result, function(object, other) {
return compareMultiple(object, other, orders);
});
}
/**
* The base implementation of `_.pick` without support for individual
* property identifiers.
*
* @private
* @param {Object} object The source object.
* @param {string[]} props The property identifiers to pick.
* @returns {Object} Returns the new object.
*/
function basePick(object, props) {
object = Object(object);
return arrayReduce(props, function(result, key) {
if (key in object) {
result[key] = object[key];
}
return result;
}, {});
}
/**
* The base implementation of `_.pickBy` without support for iteratee shorthands.
*
* @private
* @param {Object} object The source object.
* @param {Function} predicate The function invoked per property.
* @returns {Object} Returns the new object.
*/
function basePickBy(object, predicate) {
var index = -1,
props = getAllKeysIn(object),
length = props.length,
result = {};
while (++index < length) {
var key = props[index],
value = object[key];
if (predicate(value, key)) {
result[key] = value;
}
}
return result;
}
/**
* The base implementation of `_.property` without support for deep paths.
*
* @private
* @param {string} key The key of the property to get.
* @returns {Function} Returns the new accessor function.
*/
function baseProperty(key) {
return function(object) {
return object == null ? undefined : object[key];
};
}
/**
* A specialized version of `baseProperty` which supports deep paths.
*
* @private
* @param {Array|string} path The path of the property to get.
* @returns {Function} Returns the new accessor function.
*/
function basePropertyDeep(path) {
return function(object) {
return baseGet(object, path);
};
}
/**
* The base implementation of `_.pullAllBy` without support for iteratee
* shorthands.
*
* @private
* @param {Array} array The array to modify.
* @param {Array} values The values to remove.
* @param {Function} [iteratee] The iteratee invoked per element.
* @param {Function} [comparator] The comparator invoked per element.
* @returns {Array} Returns `array`.
*/
function basePullAll(array, values, iteratee, comparator) {
var indexOf = comparator ? baseIndexOfWith : baseIndexOf,
index = -1,
length = values.length,
seen = array;
if (array === values) {
values = copyArray(values);
}
if (iteratee) {
seen = arrayMap(array, baseUnary(iteratee));
}
while (++index < length) {
var fromIndex = 0,
value = values[index],
computed = iteratee ? iteratee(value) : value;
while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) {
if (seen !== array) {
splice.call(seen, fromIndex, 1);
}
splice.call(array, fromIndex, 1);
}
}
return array;
}
/**
* The base implementation of `_.pullAt` without support for individual
* indexes or capturing the removed elements.
*
* @private
* @param {Array} array The array to modify.
* @param {number[]} indexes The indexes of elements to remove.
* @returns {Array} Returns `array`.
*/
function basePullAt(array, indexes) {
var length = array ? indexes.length : 0,
lastIndex = length - 1;
while (length--) {
var index = indexes[length];
if (length == lastIndex || index !== previous) {
var previous = index;
if (isIndex(index)) {
splice.call(array, index, 1);
}
else if (!isKey(index, array)) {
var path = castPath(index),
object = parent(array, path);
if (object != null) {
delete object[toKey(last(path))];
}
}
else {
delete array[toKey(index)];
}
}
}
return array;
}
/**
* The base implementation of `_.random` without support for returning
* floating-point numbers.
*
* @private
* @param {number} lower The lower bound.
* @param {number} upper The upper bound.
* @returns {number} Returns the random number.
*/
function baseRandom(lower, upper) {
return lower + nativeFloor(nativeRandom() * (upper - lower + 1));
}
/**
* The base implementation of `_.range` and `_.rangeRight` which doesn't
* coerce arguments to numbers.
*
* @private
* @param {number} start The start of the range.
* @param {number} end The end of the range.
* @param {number} step The value to increment or decrement by.
* @param {boolean} [fromRight] Specify iterating from right to left.
* @returns {Array} Returns the range of numbers.
*/
function baseRange(start, end, step, fromRight) {
var index = -1,
length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),
result = Array(length);
while (length--) {
result[fromRight ? length : ++index] = start;
start += step;
}
return result;
}
/**
* The base implementation of `_.repeat` which doesn't coerce arguments.
*
* @private
* @param {string} string The string to repeat.
* @param {number} n The number of times to repeat the string.
* @returns {string} Returns the repeated string.
*/
function baseRepeat(string, n) {
var result = '';
if (!string || n < 1 || n > MAX_SAFE_INTEGER) {
return result;
}
// Leverage the exponentiation by squaring algorithm for a faster repeat.
// See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.
do {
if (n % 2) {
result += string;
}
n = nativeFloor(n / 2);
if (n) {
string += string;
}
} while (n);
return result;
}
/**
* The base implementation of `_.set`.
*
* @private
* @param {Object} object The object to query.
* @param {Array|string} path The path of the property to set.
* @param {*} value The value to set.
* @param {Function} [customizer] The function to customize path creation.
* @returns {Object} Returns `object`.
*/
function baseSet(object, path, value, customizer) {
path = isKey(path, object) ? [path] : castPath(path);
var index = -1,
length = path.length,
lastIndex = length - 1,
nested = object;
while (nested != null && ++index < length) {
var key = toKey(path[index]);
if (isObject(nested)) {
var newValue = value;
if (index != lastIndex) {
var objValue = nested[key];
newValue = customizer ? customizer(objValue, key, nested) : undefined;
if (newValue === undefined) {
newValue = objValue == null
? (isIndex(path[index + 1]) ? [] : {})
: objValue;
}
}
assignValue(nested, key, newValue);
}
nested = nested[key];
}
return object;
}
/**
* The base implementation of `setData` without support for hot loop detection.
*
* @private
* @param {Function} func The function to associate metadata with.
* @param {*} data The metadata.
* @returns {Function} Returns `func`.
*/
var baseSetData = !metaMap ? identity : function(func, data) {
metaMap.set(func, data);
return func;
};
/**
* The base implementation of `_.slice` without an iteratee call guard.
*
* @private
* @param {Array} array The array to slice.
* @param {number} [start=0] The start position.
* @param {number} [end=array.length] The end position.
* @returns {Array} Returns the slice of `array`.
*/
function baseSlice(array, start, end) {
var index = -1,
length = array.length;
if (start < 0) {
start = -start > length ? 0 : (length + start);
}
end = end > length ? length : end;
if (end < 0) {
end += length;
}
length = start > end ? 0 : ((end - start) >>> 0);
start >>>= 0;
var result = Array(length);
while (++index < length) {
result[index] = array[index + start];
}
return result;
}
/**
* The base implementation of `_.some` without support for iteratee shorthands.
*
* @private
* @param {Array|Object} collection The collection to iterate over.
* @param {Function} predicate The function invoked per iteration.
* @returns {boolean} Returns `true` if any element passes the predicate check,
* else `false`.
*/
function baseSome(collection, predicate) {
var result;
baseEach(collection, function(value, index, collection) {
result = predicate(value, index, collection);
return !result;
});
return !!result;
}
/**
* The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which
* performs a binary search of `array` to determine the index at which `value`
* should be inserted into `array` in order to maintain its sort order.
*
* @private
* @param {Array} array The sorted array to inspect.
* @param {*} value The value to evaluate.
* @param {boolean} [retHighest] Specify returning the highest qualified index.
* @returns {number} Returns the index at which `value` should be inserted
* into `array`.
*/
function baseSortedIndex(array, value, retHighest) {
var low = 0,
high = array ? array.length : low;
if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {
while (low < high) {
var mid = (low + high) >>> 1,
computed = array[mid];
if (computed !== null && !isSymbol(computed) &&
(retHighest ? (computed <= value) : (computed < value))) {
low = mid + 1;
} else {
high = mid;
}
}
return high;
}
return baseSortedIndexBy(array, value, identity, retHighest);
}
/**
* The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy`
* which invokes `iteratee` for `value` and each element of `array` to compute
* their sort ranking. The iteratee is invoked with one argument; (value).
*
* @private
* @param {Array} array The sorted array to inspect.
* @param {*} value The value to evaluate.
* @param {Function} iteratee The iteratee invoked per element.
* @param {boolean} [retHighest] Specify returning the highest qualified index.
* @returns {number} Returns the index at which `value` should be inserted
* into `array`.
*/
function baseSortedIndexBy(array, value, iteratee, retHighest) {
value = iteratee(value);
var low = 0,
high = array ? array.length : 0,
valIsNaN = value !== value,
valIsNull = value === null,
valIsSymbol = isSymbol(value),
valIsUndefined = value === undefined;
while (low < high) {
var mid = nativeFloor((low + high) / 2),
computed = iteratee(array[mid]),
othIsDefined = computed !== undefined,
othIsNull = computed === null,
othIsReflexive = computed === computed,
othIsSymbol = isSymbol(computed);
if (valIsNaN) {
var setLow = retHighest || othIsReflexive;
} else if (valIsUndefined) {
setLow = othIsReflexive && (retHighest || othIsDefined);
} else if (valIsNull) {
setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull);
} else if (valIsSymbol) {
setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol);
} else if (othIsNull || othIsSymbol) {
setLow = false;
} else {
setLow = retHighest ? (computed <= value) : (computed < value);
}
if (setLow) {
low = mid + 1;
} else {
high = mid;
}
}
return nativeMin(high, MAX_ARRAY_INDEX);
}
/**
* The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without
* support for iteratee shorthands.
*
* @private
* @param {Array} array The array to inspect.
* @param {Function} [iteratee] The iteratee invoked per element.
* @returns {Array} Returns the new duplicate free array.
*/
function baseSortedUniq(array, iteratee) {
var index = -1,
length = array.length,
resIndex = 0,
result = [];
while (++index < length) {
var value = array[index],
computed = iteratee ? iteratee(value) : value;
if (!index || !eq(computed, seen)) {
var seen = computed;
result[resIndex++] = value === 0 ? 0 : value;
}
}
return result;
}
/**
* The base implementation of `_.toNumber` which doesn't ensure correct
* conversions of binary, hexadecimal, or octal string values.
*
* @private
* @param {*} value The value to process.
* @returns {number} Returns the number.
*/
function baseToNumber(value) {
if (typeof value == 'number') {
return value;
}
if (isSymbol(value)) {
return NAN;
}
return +value;
}
/**
* The base implementation of `_.toString` which doesn't convert nullish
* values to empty strings.
*
* @private
* @param {*} value The value to process.
* @returns {string} Returns the string.
*/
function baseToString(value) {
// Exit early for strings to avoid a performance hit in some environments.
if (typeof value == 'string') {
return value;
}
if (isSymbol(value)) {
return symbolToString ? symbolToString.call(value) : '';
}
var result = (value + '');
return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
}
/**
* The base implementation of `_.uniqBy` without support for iteratee shorthands.
*
* @private
* @param {Array} array The array to inspect.
* @param {Function} [iteratee] The iteratee invoked per element.
* @param {Function} [comparator] The comparator invoked per element.
* @returns {Array} Returns the new duplicate free array.
*/
function baseUniq(array, iteratee, comparator) {
var index = -1,
includes = arrayIncludes,
length = array.length,
isCommon = true,
result = [],
seen = result;
if (comparator) {
isCommon = false;
includes = arrayIncludesWith;
}
else if (length >= LARGE_ARRAY_SIZE) {
var set = iteratee ? null : createSet(array);
if (set) {
return setToArray(set);
}
isCommon = false;
includes = cacheHas;
seen = new SetCache;
}
else {
seen = iteratee ? [] : result;
}
outer:
while (++index < length) {
var value = array[index],
computed = iteratee ? iteratee(value) : value;
value = (comparator || value !== 0) ? value : 0;
if (isCommon && computed === computed) {
var seenIndex = seen.length;
while (seenIndex--) {
if (seen[seenIndex] === computed) {
continue outer;
}
}
if (iteratee) {
seen.push(computed);
}
result.push(value);
}
else if (!includes(seen, computed, comparator)) {
if (seen !== result) {
seen.push(computed);
}
result.push(value);
}
}
return result;
}
/**
* The base implementation of `_.unset`.
*
* @private
* @param {Object} object The object to modify.
* @param {Array|string} path The path of the property to unset.
* @returns {boolean} Returns `true` if the property is deleted, else `false`.
*/
function baseUnset(object, path) {
path = isKey(path, object) ? [path] : castPath(path);
object = parent(object, path);
var key = toKey(last(path));
return !(object != null && baseHas(object, key)) || delete object[key];
}
/**
* The base implementation of `_.update`.
*
* @private
* @param {Object} object The object to query.
* @param {Array|string} path The path of the property to update.
* @param {Function} updater The function to produce the updated value.
* @param {Function} [customizer] The function to customize path creation.
* @returns {Object} Returns `object`.
*/
function baseUpdate(object, path, updater, customizer) {
return baseSet(object, path, updater(baseGet(object, path)), customizer);
}
/**
* The base implementation of methods like `_.dropWhile` and `_.takeWhile`
* without support for iteratee shorthands.
*
* @private
* @param {Array} array The array to query.
* @param {Function} predicate The function invoked per iteration.
* @param {boolean} [isDrop] Specify dropping elements instead of taking them.
* @param {boolean} [fromRight] Specify iterating from right to left.
* @returns {Array} Returns the slice of `array`.
*/
function baseWhile(array, predicate, isDrop, fromRight) {
var length = array.length,
index = fromRight ? length : -1;
while ((fromRight ? index-- : ++index < length) &&
predicate(array[index], index, array)) {}
return isDrop
? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))
: baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));
}
/**
* The base implementation of `wrapperValue` which returns the result of
* performing a sequence of actions on the unwrapped `value`, where each
* successive action is supplied the return value of the previous.
*
* @private
* @param {*} value The unwrapped value.
* @param {Array} actions Actions to perform to resolve the unwrapped value.
* @returns {*} Returns the resolved value.
*/
function baseWrapperValue(value, actions) {
var result = value;
if (result instanceof LazyWrapper) {
result = result.value();
}
return arrayReduce(actions, function(result, action) {
return action.func.apply(action.thisArg, arrayPush([result], action.args));
}, result);
}
/**
* The base implementation of methods like `_.xor`, without support for
* iteratee shorthands, that accepts an array of arrays to inspect.
*
* @private
* @param {Array} arrays The arrays to inspect.
* @param {Function} [iteratee] The iteratee invoked per element.
* @param {Function} [comparator] The comparator invoked per element.
* @returns {Array} Returns the new array of values.
*/
function baseXor(arrays, iteratee, comparator) {
var index = -1,
length = arrays.length;
while (++index < length) {
var result = result
? arrayPush(
baseDifference(result, arrays[index], iteratee, comparator),
baseDifference(arrays[index], result, iteratee, comparator)
)
: arrays[index];
}
return (result && result.length) ? baseUniq(result, iteratee, comparator) : [];
}
/**
* This base implementation of `_.zipObject` which assigns values using `assignFunc`.
*
* @private
* @param {Array} props The property identifiers.
* @param {Array} values The property values.
* @param {Function} assignFunc The function to assign values.
* @returns {Object} Returns the new object.
*/
function baseZipObject(props, values, assignFunc) {
var index = -1,
length = props.length,
valsLength = values.length,
result = {};
while (++index < length) {
var value = index < valsLength ? values[index] : undefined;
assignFunc(result, props[index], value);
}
return result;
}
/**
* Casts `value` to an empty array if it's not an array like object.
*
* @private
* @param {*} value The value to inspect.
* @returns {Array|Object} Returns the cast array-like object.
*/
function castArrayLikeObject(value) {
return isArrayLikeObject(value) ? value : [];
}
/**
* Casts `value` to `identity` if it's not a function.
*
* @private
* @param {*} value The value to inspect.
* @returns {Function} Returns cast function.
*/
function castFunction(value) {
return typeof value == 'function' ? value : identity;
}
/**
* Casts `value` to a path array if it's not one.
*
* @private
* @param {*} value The value to inspect.
* @returns {Array} Returns the cast property path array.
*/
function castPath(value) {
return isArray(value) ? value : stringToPath(value);
}
/**
* Casts `array` to a slice if it's needed.
*
* @private
* @param {Array} array The array to inspect.
* @param {number} start The start position.
* @param {number} [end=array.length] The end position.
* @returns {Array} Returns the cast slice.
*/
function castSlice(array, start, end) {
var length = array.length;
end = end === undefined ? length : end;
return (!start && end >= length) ? array : baseSlice(array, start, end);
}
/**
* Creates a clone of `buffer`.
*
* @private
* @param {Buffer} buffer The buffer to clone.
* @param {boolean} [isDeep] Specify a deep clone.
* @returns {Buffer} Returns the cloned buffer.
*/
function cloneBuffer(buffer, isDeep) {
if (isDeep) {
return buffer.slice();
}
var result = new buffer.constructor(buffer.length);
buffer.copy(result);
return result;
}
/**
* Creates a clone of `arrayBuffer`.
*
* @private
* @param {ArrayBuffer} arrayBuffer The array buffer to clone.
* @returns {ArrayBuffer} Returns the cloned array buffer.
*/
function cloneArrayBuffer(arrayBuffer) {
var result = new arrayBuffer.constructor(arrayBuffer.byteLength);
new Uint8Array(result).set(new Uint8Array(arrayBuffer));
return result;
}
/**
* Creates a clone of `dataView`.
*
* @private
* @param {Object} dataView The data view to clone.
* @param {boolean} [isDeep] Specify a deep clone.
* @returns {Object} Returns the cloned data view.
*/
function cloneDataView(dataView, isDeep) {
var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;
return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);
}
/**
* Creates a clone of `map`.
*
* @private
* @param {Object} map The map to clone.
* @param {Function} cloneFunc The function to clone values.
* @param {boolean} [isDeep] Specify a deep clone.
* @returns {Object} Returns the cloned map.
*/
function cloneMap(map, isDeep, cloneFunc) {
var array = isDeep ? cloneFunc(mapToArray(map), true) : mapToArray(map);
return arrayReduce(array, addMapEntry, new map.constructor);
}
/**
* Creates a clone of `regexp`.
*
* @private
* @param {Object} regexp The regexp to clone.
* @returns {Object} Returns the cloned regexp.
*/
function cloneRegExp(regexp) {
var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));
result.lastIndex = regexp.lastIndex;
return result;
}
/**
* Creates a clone of `set`.
*
* @private
* @param {Object} set The set to clone.
* @param {Function} cloneFunc The function to clone values.
* @param {boolean} [isDeep] Specify a deep clone.
* @returns {Object} Returns the cloned set.
*/
function cloneSet(set, isDeep, cloneFunc) {
var array = isDeep ? cloneFunc(setToArray(set), true) : setToArray(set);
return arrayReduce(array, addSetEntry, new set.constructor);
}
/**
* Creates a clone of the `symbol` object.
*
* @private
* @param {Object} symbol The symbol object to clone.
* @returns {Object} Returns the cloned symbol object.
*/
function cloneSymbol(symbol) {
return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};
}
/**
* Creates a clone of `typedArray`.
*
* @private
* @param {Object} typedArray The typed array to clone.
* @param {boolean} [isDeep] Specify a deep clone.
* @returns {Object} Returns the cloned typed array.
*/
function cloneTypedArray(typedArray, isDeep) {
var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;
return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);
}
/**
* Compares values to sort them in ascending order.
*
* @private
* @param {*} value The value to compare.
* @param {*} other The other value to compare.
* @returns {number} Returns the sort order indicator for `value`.
*/
function compareAscending(value, other) {
if (value !== other) {
var valIsDefined = value !== undefined,
valIsNull = value === null,
valIsReflexive = value === value,
valIsSymbol = isSymbol(value);
var othIsDefined = other !== undefined,
othIsNull = other === null,
othIsReflexive = other === other,
othIsSymbol = isSymbol(other);
if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||
(valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||
(valIsNull && othIsDefined && othIsReflexive) ||
(!valIsDefined && othIsReflexive) ||
!valIsReflexive) {
return 1;
}
if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||
(othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||
(othIsNull && valIsDefined && valIsReflexive) ||
(!othIsDefined && valIsReflexive) ||
!othIsReflexive) {
return -1;
}
}
return 0;
}
/**
* Used by `_.orderBy` to compare multiple properties of a value to another
* and stable sort them.
*
* If `orders` is unspecified, all values are sorted in ascending order. Otherwise,
* specify an order of "desc" for descending or "asc" for ascending sort order
* of corresponding values.
*
* @private
* @param {Object} object The object to compare.
* @param {Object} other The other object to compare.
* @param {boolean[]|string[]} orders The order to sort by for each property.
* @returns {number} Returns the sort order indicator for `object`.
*/
function compareMultiple(object, other, orders) {
var index = -1,
objCriteria = object.criteria,
othCriteria = other.criteria,
length = objCriteria.length,
ordersLength = orders.length;
while (++index < length) {
var result = compareAscending(objCriteria[index], othCriteria[index]);
if (result) {
if (index >= ordersLength) {
return result;
}
var order = orders[index];
return result * (order == 'desc' ? -1 : 1);
}
}
// Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
// that causes it, under certain circumstances, to provide the same value for
// `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247
// for more details.
//
// This also ensures a stable sort in V8 and other engines.
// See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.
return object.index - other.index;
}
/**
* Creates an array that is the composition of partially applied arguments,
* placeholders, and provided arguments into a single array of arguments.
*
* @private
* @param {Array} args The provided arguments.
* @param {Array} partials The arguments to prepend to those provided.
* @param {Array} holders The `partials` placeholder indexes.
* @params {boolean} [isCurried] Specify composing for a curried function.
* @returns {Array} Returns the new array of composed arguments.
*/
function composeArgs(args, partials, holders, isCurried) {
var argsIndex = -1,
argsLength = args.length,
holdersLength = holders.length,
leftIndex = -1,
leftLength = partials.length,
rangeLength = nativeMax(argsLength - holdersLength, 0),
result = Array(leftLength + rangeLength),
isUncurried = !isCurried;
while (++leftIndex < leftLength) {
result[leftIndex] = partials[leftIndex];
}
while (++argsIndex < holdersLength) {
if (isUncurried || argsIndex < argsLength) {
result[holders[argsIndex]] = args[argsIndex];
}
}
while (rangeLength--) {
result[leftIndex++] = args[argsIndex++];
}
return result;
}
/**
* This function is like `composeArgs` except that the arguments composition
* is tailored for `_.partialRight`.
*
* @private
* @param {Array} args The provided arguments.
* @param {Array} partials The arguments to append to those provided.
* @param {Array} holders The `partials` placeholder indexes.
* @params {boolean} [isCurried] Specify composing for a curried function.
* @returns {Array} Returns the new array of composed arguments.
*/
function composeArgsRight(args, partials, holders, isCurried) {
var argsIndex = -1,
argsLength = args.length,
holdersIndex = -1,
holdersLength = holders.length,
rightIndex = -1,
rightLength = partials.length,
rangeLength = nativeMax(argsLength - holdersLength, 0),
result = Array(rangeLength + rightLength),
isUncurried = !isCurried;
while (++argsIndex < rangeLength) {
result[argsIndex] = args[argsIndex];
}
var offset = argsIndex;
while (++rightIndex < rightLength) {
result[offset + rightIndex] = partials[rightIndex];
}
while (++holdersIndex < holdersLength) {
if (isUncurried || argsIndex < argsLength) {
result[offset + holders[holdersIndex]] = args[argsIndex++];
}
}
return result;
}
/**
* Copies the values of `source` to `array`.
*
* @private
* @param {Array} source The array to copy values from.
* @param {Array} [array=[]] The array to copy values to.
* @returns {Array} Returns `array`.
*/
function copyArray(source, array) {
var index = -1,
length = source.length;
array || (array = Array(length));
while (++index < length) {
array[index] = source[index];
}
return array;
}
/**
* Copies properties of `source` to `object`.
*
* @private
* @param {Object} source The object to copy properties from.
* @param {Array} props The property identifiers to copy.
* @param {Object} [object={}] The object to copy properties to.
* @param {Function} [customizer] The function to customize copied values.
* @returns {Object} Returns `object`.
*/
function copyObject(source, props, object, customizer) {
object || (object = {});
var index = -1,
length = props.length;
while (++index < length) {
var key = props[index];
var newValue = customizer
? customizer(object[key], source[key], key, object, source)
: source[key];
assignValue(object, key, newValue);
}
return object;
}
/**
* Copies own symbol properties of `source` to `object`.
*
* @private
* @param {Object} source The object to copy symbols from.
* @param {Object} [object={}] The object to copy symbols to.
* @returns {Object} Returns `object`.
*/
function copySymbols(source, object) {
return copyObject(source, getSymbols(source), object);
}
/**
* Creates a function like `_.groupBy`.
*
* @private
* @param {Function} setter The function to set accumulator values.
* @param {Function} [initializer] The accumulator object initializer.
* @returns {Function} Returns the new aggregator function.
*/
function createAggregator(setter, initializer) {
return function(collection, iteratee) {
var func = isArray(collection) ? arrayAggregator : baseAggregator,
accumulator = initializer ? initializer() : {};
return func(collection, setter, getIteratee(iteratee), accumulator);
};
}
/**
* Creates a function like `_.assign`.
*
* @private
* @param {Function} assigner The function to assign values.
* @returns {Function} Returns the new assigner function.
*/
function createAssigner(assigner) {
return rest(function(object, sources) {
var index = -1,
length = sources.length,
customizer = length > 1 ? sources[length - 1] : undefined,
guard = length > 2 ? sources[2] : undefined;
customizer = (assigner.length > 3 && typeof customizer == 'function')
? (length--, customizer)
: undefined;
if (guard && isIterateeCall(sources[0], sources[1], guard)) {
customizer = length < 3 ? undefined : customizer;
length = 1;
}
object = Object(object);
while (++index < length) {
var source = sources[index];
if (source) {
assigner(object, source, index, customizer);
}
}
return object;
});
}
/**
* Creates a `baseEach` or `baseEachRight` function.
*
* @private
* @param {Function} eachFunc The function to iterate over a collection.
* @param {boolean} [fromRight] Specify iterating from right to left.
* @returns {Function} Returns the new base function.
*/
function createBaseEach(eachFunc, fromRight) {
return function(collection, iteratee) {
if (collection == null) {
return collection;
}
if (!isArrayLike(collection)) {
return eachFunc(collection, iteratee);
}
var length = collection.length,
index = fromRight ? length : -1,
iterable = Object(collection);
while ((fromRight ? index-- : ++index < length)) {
if (iteratee(iterable[index], index, iterable) === false) {
break;
}
}
return collection;
};
}
/**
* Creates a base function for methods like `_.forIn` and `_.forOwn`.
*
* @private
* @param {boolean} [fromRight] Specify iterating from right to left.
* @returns {Function} Returns the new base function.
*/
function createBaseFor(fromRight) {
return function(object, iteratee, keysFunc) {
var index = -1,
iterable = Object(object),
props = keysFunc(object),
length = props.length;
while (length--) {
var key = props[fromRight ? length : ++index];
if (iteratee(iterable[key], key, iterable) === false) {
break;
}
}
return object;
};
}
/**
* Creates a function that wraps `func` to invoke it with the optional `this`
* binding of `thisArg`.
*
* @private
* @param {Function} func The function to wrap.
* @param {number} bitmask The bitmask of wrapper flags. See `createWrapper`
* for more details.
* @param {*} [thisArg] The `this` binding of `func`.
* @returns {Function} Returns the new wrapped function.
*/
function createBaseWrapper(func, bitmask, thisArg) {
var isBind = bitmask & BIND_FLAG,
Ctor = createCtorWrapper(func);
function wrapper() {
var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
return fn.apply(isBind ? thisArg : this, arguments);
}
return wrapper;
}
/**
* Creates a function like `_.lowerFirst`.
*
* @private
* @param {string} methodName The name of the `String` case method to use.
* @returns {Function} Returns the new case function.
*/
function createCaseFirst(methodName) {
return function(string) {
string = toString(string);
var strSymbols = reHasComplexSymbol.test(string)
? stringToArray(string)
: undefined;
var chr = strSymbols
? strSymbols[0]
: string.charAt(0);
var trailing = strSymbols
? castSlice(strSymbols, 1).join('')
: string.slice(1);
return chr[methodName]() + trailing;
};
}
/**
* Creates a function like `_.camelCase`.
*
* @private
* @param {Function} callback The function to combine each word.
* @returns {Function} Returns the new compounder function.
*/
function createCompounder(callback) {
return function(string) {
return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');
};
}
/**
* Creates a function that produces an instance of `Ctor` regardless of
* whether it was invoked as part of a `new` expression or by `call` or `apply`.
*
* @private
* @param {Function} Ctor The constructor to wrap.
* @returns {Function} Returns the new wrapped function.
*/
function createCtorWrapper(Ctor) {
return function() {
// Use a `switch` statement to work with class constructors. See
// http://ecma-international.org/ecma-262/6.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
// for more details.
var args = arguments;
switch (args.length) {
case 0: return new Ctor;
case 1: return new Ctor(args[0]);
case 2: return new Ctor(args[0], args[1]);
case 3: return new Ctor(args[0], args[1], args[2]);
case 4: return new Ctor(args[0], args[1], args[2], args[3]);
case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);
case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);
case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);
}
var thisBinding = baseCreate(Ctor.prototype),
result = Ctor.apply(thisBinding, args);
// Mimic the constructor's `return` behavior.
// See https://es5.github.io/#x13.2.2 for more details.
return isObject(result) ? result : thisBinding;
};
}
/**
* Creates a function that wraps `func` to enable currying.
*
* @private
* @param {Function} func The function to wrap.
* @param {number} bitmask The bitmask of wrapper flags. See `createWrapper`
* for more details.
* @param {number} arity The arity of `func`.
* @returns {Function} Returns the new wrapped function.
*/
function createCurryWrapper(func, bitmask, arity) {
var Ctor = createCtorWrapper(func);
function wrapper() {
var length = arguments.length,
args = Array(length),
index = length,
placeholder = getHolder(wrapper);
while (index--) {
args[index] = arguments[index];
}
var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder)
? []
: replaceHolders(args, placeholder);
length -= holders.length;
if (length < arity) {
return createRecurryWrapper(
func, bitmask, createHybridWrapper, wrapper.placeholder, undefined,
args, holders, undefined, undefined, arity - length);
}
var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
return apply(fn, this, args);
}
return wrapper;
}
/**
* Creates a `_.find` or `_.findLast` function.
*
* @private
* @param {Function} findIndexFunc The function to find the collection index.
* @returns {Function} Returns the new find function.
*/
function createFind(findIndexFunc) {
return function(collection, predicate, fromIndex) {
var iterable = Object(collection);
predicate = getIteratee(predicate, 3);
if (!isArrayLike(collection)) {
var props = keys(collection);
}
var index = findIndexFunc(props || collection, function(value, key) {
if (props) {
key = value;
value = iterable[key];
}
return predicate(value, key, iterable);
}, fromIndex);
return index > -1 ? collection[props ? props[index] : index] : undefined;
};
}
/**
* Creates a `_.flow` or `_.flowRight` function.
*
* @private
* @param {boolean} [fromRight] Specify iterating from right to left.
* @returns {Function} Returns the new flow function.
*/
function createFlow(fromRight) {
return rest(function(funcs) {
funcs = baseFlatten(funcs, 1);
var length = funcs.length,
index = length,
prereq = LodashWrapper.prototype.thru;
if (fromRight) {
funcs.reverse();
}
while (index--) {
var func = funcs[index];
if (typeof func != 'function') {
throw new TypeError(FUNC_ERROR_TEXT);
}
if (prereq && !wrapper && getFuncName(func) == 'wrapper') {
var wrapper = new LodashWrapper([], true);
}
}
index = wrapper ? index : length;
while (++index < length) {
func = funcs[index];
var funcName = getFuncName(func),
data = funcName == 'wrapper' ? getData(func) : undefined;
if (data && isLaziable(data[0]) &&
data[1] == (ARY_FLAG | CURRY_FLAG | PARTIAL_FLAG | REARG_FLAG) &&
!data[4].length && data[9] == 1
) {
wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);
} else {
wrapper = (func.length == 1 && isLaziable(func))
? wrapper[funcName]()
: wrapper.thru(func);
}
}
return function() {
var args = arguments,
value = args[0];
if (wrapper && args.length == 1 &&
isArray(value) && value.length >= LARGE_ARRAY_SIZE) {
return wrapper.plant(value).value();
}
var index = 0,
result = length ? funcs[index].apply(this, args) : value;
while (++index < length) {
result = funcs[index].call(this, result);
}
return result;
};
});
}
/**
* Creates a function that wraps `func` to invoke it with optional `this`
* binding of `thisArg`, partial application, and currying.
*
* @private
* @param {Function|string} func The function or method name to wrap.
* @param {number} bitmask The bitmask of wrapper flags. See `createWrapper`
* for more details.
* @param {*} [thisArg] The `this` binding of `func`.
* @param {Array} [partials] The arguments to prepend to those provided to
* the new function.
* @param {Array} [holders] The `partials` placeholder indexes.
* @param {Array} [partialsRight] The arguments to append to those provided
* to the new function.
* @param {Array} [holdersRight] The `partialsRight` placeholder indexes.
* @param {Array} [argPos] The argument positions of the new function.
* @param {number} [ary] The arity cap of `func`.
* @param {number} [arity] The arity of `func`.
* @returns {Function} Returns the new wrapped function.
*/
function createHybridWrapper(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {
var isAry = bitmask & ARY_FLAG,
isBind = bitmask & BIND_FLAG,
isBindKey = bitmask & BIND_KEY_FLAG,
isCurried = bitmask & (CURRY_FLAG | CURRY_RIGHT_FLAG),
isFlip = bitmask & FLIP_FLAG,
Ctor = isBindKey ? undefined : createCtorWrapper(func);
function wrapper() {
var length = arguments.length,
args = Array(length),
index = length;
while (index--) {
args[index] = arguments[index];
}
if (isCurried) {
var placeholder = getHolder(wrapper),
holdersCount = countHolders(args, placeholder);
}
if (partials) {
args = composeArgs(args, partials, holders, isCurried);
}
if (partialsRight) {
args = composeArgsRight(args, partialsRight, holdersRight, isCurried);
}
length -= holdersCount;
if (isCurried && length < arity) {
var newHolders = replaceHolders(args, placeholder);
return createRecurryWrapper(
func, bitmask, createHybridWrapper, wrapper.placeholder, thisArg,
args, newHolders, argPos, ary, arity - length
);
}
var thisBinding = isBind ? thisArg : this,
fn = isBindKey ? thisBinding[func] : func;
length = args.length;
if (argPos) {
args = reorder(args, argPos);
} else if (isFlip && length > 1) {
args.reverse();
}
if (isAry && ary < length) {
args.length = ary;
}
if (this && this !== root && this instanceof wrapper) {
fn = Ctor || createCtorWrapper(fn);
}
return fn.apply(thisBinding, args);
}
return wrapper;
}
/**
* Creates a function like `_.invertBy`.
*
* @private
* @param {Function} setter The function to set accumulator values.
* @param {Function} toIteratee The function to resolve iteratees.
* @returns {Function} Returns the new inverter function.
*/
function createInverter(setter, toIteratee) {
return function(object, iteratee) {
return baseInverter(object, setter, toIteratee(iteratee), {});
};
}
/**
* Creates a function that performs a mathematical operation on two values.
*
* @private
* @param {Function} operator The function to perform the operation.
* @returns {Function} Returns the new mathematical operation function.
*/
function createMathOperation(operator) {
return function(value, other) {
var result;
if (value === undefined && other === undefined) {
return 0;
}
if (value !== undefined) {
result = value;
}
if (other !== undefined) {
if (result === undefined) {
return other;
}
if (typeof value == 'string' || typeof other == 'string') {
value = baseToString(value);
other = baseToString(other);
} else {
value = baseToNumber(value);
other = baseToNumber(other);
}
result = operator(value, other);
}
return result;
};
}
/**
* Creates a function like `_.over`.
*
* @private
* @param {Function} arrayFunc The function to iterate over iteratees.
* @returns {Function} Returns the new over function.
*/
function createOver(arrayFunc) {
return rest(function(iteratees) {
iteratees = (iteratees.length == 1 && isArray(iteratees[0]))
? arrayMap(iteratees[0], baseUnary(getIteratee()))
: arrayMap(baseFlatten(iteratees, 1, isFlattenableIteratee), baseUnary(getIteratee()));
return rest(function(args) {
var thisArg = this;
return arrayFunc(iteratees, function(iteratee) {
return apply(iteratee, thisArg, args);
});
});
});
}
/**
* Creates the padding for `string` based on `length`. The `chars` string
* is truncated if the number of characters exceeds `length`.
*
* @private
* @param {number} length The padding length.
* @param {string} [chars=' '] The string used as padding.
* @returns {string} Returns the padding for `string`.
*/
function createPadding(length, chars) {
chars = chars === undefined ? ' ' : baseToString(chars);
var charsLength = chars.length;
if (charsLength < 2) {
return charsLength ? baseRepeat(chars, length) : chars;
}
var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));
return reHasComplexSymbol.test(chars)
? castSlice(stringToArray(result), 0, length).join('')
: result.slice(0, length);
}
/**
* Creates a function that wraps `func` to invoke it with the `this` binding
* of `thisArg` and `partials` prepended to the arguments it receives.
*
* @private
* @param {Function} func The function to wrap.
* @param {number} bitmask The bitmask of wrapper flags. See `createWrapper`
* for more details.
* @param {*} thisArg The `this` binding of `func`.
* @param {Array} partials The arguments to prepend to those provided to
* the new function.
* @returns {Function} Returns the new wrapped function.
*/
function createPartialWrapper(func, bitmask, thisArg, partials) {
var isBind = bitmask & BIND_FLAG,
Ctor = createCtorWrapper(func);
function wrapper() {
var argsIndex = -1,
argsLength = arguments.length,
leftIndex = -1,
leftLength = partials.length,
args = Array(leftLength + argsLength),
fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
while (++leftIndex < leftLength) {
args[leftIndex] = partials[leftIndex];
}
while (argsLength--) {
args[leftIndex++] = arguments[++argsIndex];
}
return apply(fn, isBind ? thisArg : this, args);
}
return wrapper;
}
/**
* Creates a `_.range` or `_.rangeRight` function.
*
* @private
* @param {boolean} [fromRight] Specify iterating from right to left.
* @returns {Function} Returns the new range function.
*/
function createRange(fromRight) {
return function(start, end, step) {
if (step && typeof step != 'number' && isIterateeCall(start, end, step)) {
end = step = undefined;
}
// Ensure the sign of `-0` is preserved.
start = toNumber(start);
start = start === start ? start : 0;
if (end === undefined) {
end = start;
start = 0;
} else {
end = toNumber(end) || 0;
}
step = step === undefined ? (start < end ? 1 : -1) : (toNumber(step) || 0);
return baseRange(start, end, step, fromRight);
};
}
/**
* Creates a function that performs a relational operation on two values.
*
* @private
* @param {Function} operator The function to perform the operation.
* @returns {Function} Returns the new relational operation function.
*/
function createRelationalOperation(operator) {
return function(value, other) {
if (!(typeof value == 'string' && typeof other == 'string')) {
value = toNumber(value);
other = toNumber(other);
}
return operator(value, other);
};
}
/**
* Creates a function that wraps `func` to continue currying.
*
* @private
* @param {Function} func The function to wrap.
* @param {number} bitmask The bitmask of wrapper flags. See `createWrapper`
* for more details.
* @param {Function} wrapFunc The function to create the `func` wrapper.
* @param {*} placeholder The placeholder value.
* @param {*} [thisArg] The `this` binding of `func`.
* @param {Array} [partials] The arguments to prepend to those provided to
* the new function.
* @param {Array} [holders] The `partials` placeholder indexes.
* @param {Array} [argPos] The argument positions of the new function.
* @param {number} [ary] The arity cap of `func`.
* @param {number} [arity] The arity of `func`.
* @returns {Function} Returns the new wrapped function.
*/
function createRecurryWrapper(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {
var isCurry = bitmask & CURRY_FLAG,
newHolders = isCurry ? holders : undefined,
newHoldersRight = isCurry ? undefined : holders,
newPartials = isCurry ? partials : undefined,
newPartialsRight = isCurry ? undefined : partials;
bitmask |= (isCurry ? PARTIAL_FLAG : PARTIAL_RIGHT_FLAG);
bitmask &= ~(isCurry ? PARTIAL_RIGHT_FLAG : PARTIAL_FLAG);
if (!(bitmask & CURRY_BOUND_FLAG)) {
bitmask &= ~(BIND_FLAG | BIND_KEY_FLAG);
}
var newData = [
func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,
newHoldersRight, argPos, ary, arity
];
var result = wrapFunc.apply(undefined, newData);
if (isLaziable(func)) {
setData(result, newData);
}
result.placeholder = placeholder;
return result;
}
/**
* Creates a function like `_.round`.
*
* @private
* @param {string} methodName The name of the `Math` method to use when rounding.
* @returns {Function} Returns the new round function.
*/
function createRound(methodName) {
var func = Math[methodName];
return function(number, precision) {
number = toNumber(number);
precision = nativeMin(toInteger(precision), 292);
if (precision) {
// Shift with exponential notation to avoid floating-point issues.
// See [MDN](https://mdn.io/round#Examples) for more details.
var pair = (toString(number) + 'e').split('e'),
value = func(pair[0] + 'e' + (+pair[1] + precision));
pair = (toString(value) + 'e').split('e');
return +(pair[0] + 'e' + (+pair[1] - precision));
}
return func(number);
};
}
/**
* Creates a set of `values`.
*
* @private
* @param {Array} values The values to add to the set.
* @returns {Object} Returns the new set.
*/
var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) {
return new Set(values);
};
/**
* Creates a `_.toPairs` or `_.toPairsIn` function.
*
* @private
* @param {Function} keysFunc The function to get the keys of a given object.
* @returns {Function} Returns the new pairs function.
*/
function createToPairs(keysFunc) {
return function(object) {
var tag = getTag(object);
if (tag == mapTag) {
return mapToArray(object);
}
if (tag == setTag) {
return setToPairs(object);
}
return baseToPairs(object, keysFunc(object));
};
}
/**
* Creates a function that either curries or invokes `func` with optional
* `this` binding and partially applied arguments.
*
* @private
* @param {Function|string} func The function or method name to wrap.
* @param {number} bitmask The bitmask of wrapper flags.
* The bitmask may be composed of the following flags:
* 1 - `_.bind`
* 2 - `_.bindKey`
* 4 - `_.curry` or `_.curryRight` of a bound function
* 8 - `_.curry`
* 16 - `_.curryRight`
* 32 - `_.partial`
* 64 - `_.partialRight`
* 128 - `_.rearg`
* 256 - `_.ary`
* 512 - `_.flip`
* @param {*} [thisArg] The `this` binding of `func`.
* @param {Array} [partials] The arguments to be partially applied.
* @param {Array} [holders] The `partials` placeholder indexes.
* @param {Array} [argPos] The argument positions of the new function.
* @param {number} [ary] The arity cap of `func`.
* @param {number} [arity] The arity of `func`.
* @returns {Function} Returns the new wrapped function.
*/
function createWrapper(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {
var isBindKey = bitmask & BIND_KEY_FLAG;
if (!isBindKey && typeof func != 'function') {
throw new TypeError(FUNC_ERROR_TEXT);
}
var length = partials ? partials.length : 0;
if (!length) {
bitmask &= ~(PARTIAL_FLAG | PARTIAL_RIGHT_FLAG);
partials = holders = undefined;
}
ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0);
arity = arity === undefined ? arity : toInteger(arity);
length -= holders ? holders.length : 0;
if (bitmask & PARTIAL_RIGHT_FLAG) {
var partialsRight = partials,
holdersRight = holders;
partials = holders = undefined;
}
var data = isBindKey ? undefined : getData(func);
var newData = [
func, bitmask, thisArg, partials, holders, partialsRight, holdersRight,
argPos, ary, arity
];
if (data) {
mergeData(newData, data);
}
func = newData[0];
bitmask = newData[1];
thisArg = newData[2];
partials = newData[3];
holders = newData[4];
arity = newData[9] = newData[9] == null
? (isBindKey ? 0 : func.length)
: nativeMax(newData[9] - length, 0);
if (!arity && bitmask & (CURRY_FLAG | CURRY_RIGHT_FLAG)) {
bitmask &= ~(CURRY_FLAG | CURRY_RIGHT_FLAG);
}
if (!bitmask || bitmask == BIND_FLAG) {
var result = createBaseWrapper(func, bitmask, thisArg);
} else if (bitmask == CURRY_FLAG || bitmask == CURRY_RIGHT_FLAG) {
result = createCurryWrapper(func, bitmask, arity);
} else if ((bitmask == PARTIAL_FLAG || bitmask == (BIND_FLAG | PARTIAL_FLAG)) && !holders.length) {
result = createPartialWrapper(func, bitmask, thisArg, partials);
} else {
result = createHybridWrapper.apply(undefined, newData);
}
var setter = data ? baseSetData : setData;
return setter(result, newData);
}
/**
* A specialized version of `baseIsEqualDeep` for arrays with support for
* partial deep comparisons.
*
* @private
* @param {Array} array The array to compare.
* @param {Array} other The other array to compare.
* @param {Function} equalFunc The function to determine equivalents of values.
* @param {Function} customizer The function to customize comparisons.
* @param {number} bitmask The bitmask of comparison flags. See `baseIsEqual`
* for more details.
* @param {Object} stack Tracks traversed `array` and `other` objects.
* @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
*/
function equalArrays(array, other, equalFunc, customizer, bitmask, stack) {
var isPartial = bitmask & PARTIAL_COMPARE_FLAG,
arrLength = array.length,
othLength = other.length;
if (arrLength != othLength && !(isPartial && othLength > arrLength)) {
return false;
}
// Assume cyclic values are equal.
var stacked = stack.get(array);
if (stacked) {
return stacked == other;
}
var index = -1,
result = true,
seen = (bitmask & UNORDERED_COMPARE_FLAG) ? new SetCache : undefined;
stack.set(array, other);
// Ignore non-index properties.
while (++index < arrLength) {
var arrValue = array[index],
othValue = other[index];
if (customizer) {
var compared = isPartial
? customizer(othValue, arrValue, index, other, array, stack)
: customizer(arrValue, othValue, index, array, other, stack);
}
if (compared !== undefined) {
if (compared) {
continue;
}
result = false;
break;
}
// Recursively compare arrays (susceptible to call stack limits).
if (seen) {
if (!arraySome(other, function(othValue, othIndex) {
if (!seen.has(othIndex) &&
(arrValue === othValue || equalFunc(arrValue, othValue, customizer, bitmask, stack))) {
return seen.add(othIndex);
}
})) {
result = false;
break;
}
} else if (!(
arrValue === othValue ||
equalFunc(arrValue, othValue, customizer, bitmask, stack)
)) {
result = false;
break;
}
}
stack['delete'](array);
return result;
}
/**
* A specialized version of `baseIsEqualDeep` for comparing objects of
* the same `toStringTag`.
*
* **Note:** This function only supports comparing values with tags of
* `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
*
* @private
* @param {Object} object The object to compare.
* @param {Object} other The other object to compare.
* @param {string} tag The `toStringTag` of the objects to compare.
* @param {Function} equalFunc The function to determine equivalents of values.
* @param {Function} customizer The function to customize comparisons.
* @param {number} bitmask The bitmask of comparison flags. See `baseIsEqual`
* for more details.
* @param {Object} stack Tracks traversed `object` and `other` objects.
* @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
*/
function equalByTag(object, other, tag, equalFunc, customizer, bitmask, stack) {
switch (tag) {
case dataViewTag:
if ((object.byteLength != other.byteLength) ||
(object.byteOffset != other.byteOffset)) {
return false;
}
object = object.buffer;
other = other.buffer;
case arrayBufferTag:
if ((object.byteLength != other.byteLength) ||
!equalFunc(new Uint8Array(object), new Uint8Array(other))) {
return false;
}
return true;
case boolTag:
case dateTag:
// Coerce dates and booleans to numbers, dates to milliseconds and
// booleans to `1` or `0` treating invalid dates coerced to `NaN` as
// not equal.
return +object == +other;
case errorTag:
return object.name == other.name && object.message == other.message;
case numberTag:
// Treat `NaN` vs. `NaN` as equal.
return (object != +object) ? other != +other : object == +other;
case regexpTag:
case stringTag:
// Coerce regexes to strings and treat strings, primitives and objects,
// as equal. See http://www.ecma-international.org/ecma-262/6.0/#sec-regexp.prototype.tostring
// for more details.
return object == (other + '');
case mapTag:
var convert = mapToArray;
case setTag:
var isPartial = bitmask & PARTIAL_COMPARE_FLAG;
convert || (convert = setToArray);
if (object.size != other.size && !isPartial) {
return false;
}
// Assume cyclic values are equal.
var stacked = stack.get(object);
if (stacked) {
return stacked == other;
}
bitmask |= UNORDERED_COMPARE_FLAG;
stack.set(object, other);
// Recursively compare objects (susceptible to call stack limits).
return equalArrays(convert(object), convert(other), equalFunc, customizer, bitmask, stack);
case symbolTag:
if (symbolValueOf) {
return symbolValueOf.call(object) == symbolValueOf.call(other);
}
}
return false;
}
/**
* A specialized version of `baseIsEqualDeep` for objects with support for
* partial deep comparisons.
*
* @private
* @param {Object} object The object to compare.
* @param {Object} other The other object to compare.
* @param {Function} equalFunc The function to determine equivalents of values.
* @param {Function} customizer The function to customize comparisons.
* @param {number} bitmask The bitmask of comparison flags. See `baseIsEqual`
* for more details.
* @param {Object} stack Tracks traversed `object` and `other` objects.
* @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
*/
function equalObjects(object, other, equalFunc, customizer, bitmask, stack) {
var isPartial = bitmask & PARTIAL_COMPARE_FLAG,
objProps = keys(object),
objLength = objProps.length,
othProps = keys(other),
othLength = othProps.length;
if (objLength != othLength && !isPartial) {
return false;
}
var index = objLength;
while (index--) {
var key = objProps[index];
if (!(isPartial ? key in other : baseHas(other, key))) {
return false;
}
}
// Assume cyclic values are equal.
var stacked = stack.get(object);
if (stacked) {
return stacked == other;
}
var result = true;
stack.set(object, other);
var skipCtor = isPartial;
while (++index < objLength) {
key = objProps[index];
var objValue = object[key],
othValue = other[key];
if (customizer) {
var compared = isPartial
? customizer(othValue, objValue, key, other, object, stack)
: customizer(objValue, othValue, key, object, other, stack);
}
// Recursively compare objects (susceptible to call stack limits).
if (!(compared === undefined
? (objValue === othValue || equalFunc(objValue, othValue, customizer, bitmask, stack))
: compared
)) {
result = false;
break;
}
skipCtor || (skipCtor = key == 'constructor');
}
if (result && !skipCtor) {
var objCtor = object.constructor,
othCtor = other.constructor;
// Non `Object` object instances with different constructors are not equal.
if (objCtor != othCtor &&
('constructor' in object && 'constructor' in other) &&
!(typeof objCtor == 'function' && objCtor instanceof objCtor &&
typeof othCtor == 'function' && othCtor instanceof othCtor)) {
result = false;
}
}
stack['delete'](object);
return result;
}
/**
* Creates an array of own enumerable property names and symbols of `object`.
*
* @private
* @param {Object} object The object to query.
* @returns {Array} Returns the array of property names and symbols.
*/
function getAllKeys(object) {
return baseGetAllKeys(object, keys, getSymbols);
}
/**
* Creates an array of own and inherited enumerable property names and
* symbols of `object`.
*
* @private
* @param {Object} object The object to query.
* @returns {Array} Returns the array of property names and symbols.
*/
function getAllKeysIn(object) {
return baseGetAllKeys(object, keysIn, getSymbolsIn);
}
/**
* Gets metadata for `func`.
*
* @private
* @param {Function} func The function to query.
* @returns {*} Returns the metadata for `func`.
*/
var getData = !metaMap ? noop : function(func) {
return metaMap.get(func);
};
/**
* Gets the name of `func`.
*
* @private
* @param {Function} func The function to query.
* @returns {string} Returns the function name.
*/
function getFuncName(func) {
var result = (func.name + ''),
array = realNames[result],
length = hasOwnProperty.call(realNames, result) ? array.length : 0;
while (length--) {
var data = array[length],
otherFunc = data.func;
if (otherFunc == null || otherFunc == func) {
return data.name;
}
}
return result;
}
/**
* Gets the argument placeholder value for `func`.
*
* @private
* @param {Function} func The function to inspect.
* @returns {*} Returns the placeholder value.
*/
function getHolder(func) {
var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func;
return object.placeholder;
}
/**
* Gets the appropriate "iteratee" function. If `_.iteratee` is customized,
* this function returns the custom method, otherwise it returns `baseIteratee`.
* If arguments are provided, the chosen function is invoked with them and
* its result is returned.
*
* @private
* @param {*} [value] The value to convert to an iteratee.
* @param {number} [arity] The arity of the created iteratee.
* @returns {Function} Returns the chosen function or its result.
*/
function getIteratee() {
var result = lodash.iteratee || iteratee;
result = result === iteratee ? baseIteratee : result;
return arguments.length ? result(arguments[0], arguments[1]) : result;
}
/**
* Gets the "length" property value of `object`.
*
* **Note:** This function is used to avoid a
* [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792) that affects
* Safari on at least iOS 8.1-8.3 ARM64.
*
* @private
* @param {Object} object The object to query.
* @returns {*} Returns the "length" value.
*/
var getLength = baseProperty('length');
/**
* Gets the data for `map`.
*
* @private
* @param {Object} map The map to query.
* @param {string} key The reference key.
* @returns {*} Returns the map data.
*/
function getMapData(map, key) {
var data = map.__data__;
return isKeyable(key)
? data[typeof key == 'string' ? 'string' : 'hash']
: data.map;
}
/**
* Gets the property names, values, and compare flags of `object`.
*
* @private
* @param {Object} object The object to query.
* @returns {Array} Returns the match data of `object`.
*/
function getMatchData(object) {
var result = keys(object),
length = result.length;
while (length--) {
var key = result[length],
value = object[key];
result[length] = [key, value, isStrictComparable(value)];
}
return result;
}
/**
* Gets the native function at `key` of `object`.
*
* @private
* @param {Object} object The object to query.
* @param {string} key The key of the method to get.
* @returns {*} Returns the function if it's native, else `undefined`.
*/
function getNative(object, key) {
var value = getValue(object, key);
return baseIsNative(value) ? value : undefined;
}
/**
* Gets the `[[Prototype]]` of `value`.
*
* @private
* @param {*} value The value to query.
* @returns {null|Object} Returns the `[[Prototype]]`.
*/
function getPrototype(value) {
return nativeGetPrototype(Object(value));
}
/**
* Creates an array of the own enumerable symbol properties of `object`.
*
* @private
* @param {Object} object The object to query.
* @returns {Array} Returns the array of symbols.
*/
function getSymbols(object) {
// Coerce `object` to an object to avoid non-object errors in V8.
// See https://bugs.chromium.org/p/v8/issues/detail?id=3443 for more details.
return getOwnPropertySymbols(Object(object));
}
// Fallback for IE < 11.
if (!getOwnPropertySymbols) {
getSymbols = stubArray;
}
/**
* Creates an array of the own and inherited enumerable symbol properties
* of `object`.
*
* @private
* @param {Object} object The object to query.
* @returns {Array} Returns the array of symbols.
*/
var getSymbolsIn = !getOwnPropertySymbols ? getSymbols : function(object) {
var result = [];
while (object) {
arrayPush(result, getSymbols(object));
object = getPrototype(object);
}
return result;
};
/**
* Gets the `toStringTag` of `value`.
*
* @private
* @param {*} value The value to query.
* @returns {string} Returns the `toStringTag`.
*/
function getTag(value) {
return objectToString.call(value);
}
// Fallback for data views, maps, sets, and weak maps in IE 11,
// for data views in Edge, and promises in Node.js.
if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
(Map && getTag(new Map) != mapTag) ||
(Promise && getTag(Promise.resolve()) != promiseTag) ||
(Set && getTag(new Set) != setTag) ||
(WeakMap && getTag(new WeakMap) != weakMapTag)) {
getTag = function(value) {
var result = objectToString.call(value),
Ctor = result == objectTag ? value.constructor : undefined,
ctorString = Ctor ? toSource(Ctor) : undefined;
if (ctorString) {
switch (ctorString) {
case dataViewCtorString: return dataViewTag;
case mapCtorString: return mapTag;
case promiseCtorString: return promiseTag;
case setCtorString: return setTag;
case weakMapCtorString: return weakMapTag;
}
}
return result;
};
}
/**
* Gets the view, applying any `transforms` to the `start` and `end` positions.
*
* @private
* @param {number} start The start of the view.
* @param {number} end The end of the view.
* @param {Array} transforms The transformations to apply to the view.
* @returns {Object} Returns an object containing the `start` and `end`
* positions of the view.
*/
function getView(start, end, transforms) {
var index = -1,
length = transforms.length;
while (++index < length) {
var data = transforms[index],
size = data.size;
switch (data.type) {
case 'drop': start += size; break;
case 'dropRight': end -= size; break;
case 'take': end = nativeMin(end, start + size); break;
case 'takeRight': start = nativeMax(start, end - size); break;
}
}
return { 'start': start, 'end': end };
}
/**
* Checks if `path` exists on `object`.
*
* @private
* @param {Object} object The object to query.
* @param {Array|string} path The path to check.
* @param {Function} hasFunc The function to check properties.
* @returns {boolean} Returns `true` if `path` exists, else `false`.
*/
function hasPath(object, path, hasFunc) {
path = isKey(path, object) ? [path] : castPath(path);
var result,
index = -1,
length = path.length;
while (++index < length) {
var key = toKey(path[index]);
if (!(result = object != null && hasFunc(object, key))) {
break;
}
object = object[key];
}
if (result) {
return result;
}
var length = object ? object.length : 0;
return !!length && isLength(length) && isIndex(key, length) &&
(isArray(object) || isString(object) || isArguments(object));
}
/**
* Initializes an array clone.
*
* @private
* @param {Array} array The array to clone.
* @returns {Array} Returns the initialized clone.
*/
function initCloneArray(array) {
var length = array.length,
result = array.constructor(length);
// Add properties assigned by `RegExp#exec`.
if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {
result.index = array.index;
result.input = array.input;
}
return result;
}
/**
* Initializes an object clone.
*
* @private
* @param {Object} object The object to clone.
* @returns {Object} Returns the initialized clone.
*/
function initCloneObject(object) {
return (typeof object.constructor == 'function' && !isPrototype(object))
? baseCreate(getPrototype(object))
: {};
}
/**
* Initializes an object clone based on its `toStringTag`.
*
* **Note:** This function only supports cloning values with tags of
* `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
*
* @private
* @param {Object} object The object to clone.
* @param {string} tag The `toStringTag` of the object to clone.
* @param {Function} cloneFunc The function to clone values.
* @param {boolean} [isDeep] Specify a deep clone.
* @returns {Object} Returns the initialized clone.
*/
function initCloneByTag(object, tag, cloneFunc, isDeep) {
var Ctor = object.constructor;
switch (tag) {
case arrayBufferTag:
return cloneArrayBuffer(object);
case boolTag:
case dateTag:
return new Ctor(+object);
case dataViewTag:
return cloneDataView(object, isDeep);
case float32Tag: case float64Tag:
case int8Tag: case int16Tag: case int32Tag:
case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:
return cloneTypedArray(object, isDeep);
case mapTag:
return cloneMap(object, isDeep, cloneFunc);
case numberTag:
case stringTag:
return new Ctor(object);
case regexpTag:
return cloneRegExp(object);
case setTag:
return cloneSet(object, isDeep, cloneFunc);
case symbolTag:
return cloneSymbol(object);
}
}
/**
* Creates an array of index keys for `object` values of arrays,
* `arguments` objects, and strings, otherwise `null` is returned.
*
* @private
* @param {Object} object The object to query.
* @returns {Array|null} Returns index keys, else `null`.
*/
function indexKeys(object) {
var length = object ? object.length : undefined;
if (isLength(length) &&
(isArray(object) || isString(object) || isArguments(object))) {
return baseTimes(length, String);
}
return null;
}
/**
* Checks if `value` is a flattenable `arguments` object or array.
*
* @private
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is flattenable, else `false`.
*/
function isFlattenable(value) {
return isArray(value) || isArguments(value);
}
/**
* Checks if `value` is a flattenable array and not a `_.matchesProperty`
* iteratee shorthand.
*
* @private
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is flattenable, else `false`.
*/
function isFlattenableIteratee(value) {
return isArray(value) && !(value.length == 2 && !isFunction(value[0]));
}
/**
* Checks if `value` is a valid array-like index.
*
* @private
* @param {*} value The value to check.
* @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
* @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
*/
function isIndex(value, length) {
length = length == null ? MAX_SAFE_INTEGER : length;
return !!length &&
(typeof value == 'number' || reIsUint.test(value)) &&
(value > -1 && value % 1 == 0 && value < length);
}
/**
* Checks if the given arguments are from an iteratee call.
*
* @private
* @param {*} value The potential iteratee value argument.
* @param {*} index The potential iteratee index or key argument.
* @param {*} object The potential iteratee object argument.
* @returns {boolean} Returns `true` if the arguments are from an iteratee call,
* else `false`.
*/
function isIterateeCall(value, index, object) {
if (!isObject(object)) {
return false;
}
var type = typeof index;
if (type == 'number'
? (isArrayLike(object) && isIndex(index, object.length))
: (type == 'string' && index in object)
) {
return eq(object[index], value);
}
return false;
}
/**
* Checks if `value` is a property name and not a property path.
*
* @private
* @param {*} value The value to check.
* @param {Object} [object] The object to query keys on.
* @returns {boolean} Returns `true` if `value` is a property name, else `false`.
*/
function isKey(value, object) {
if (isArray(value)) {
return false;
}
var type = typeof value;
if (type == 'number' || type == 'symbol' || type == 'boolean' ||
value == null || isSymbol(value)) {
return true;
}
return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||
(object != null && value in Object(object));
}
/**
* Checks if `value` is suitable for use as unique object key.
*
* @private
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is suitable, else `false`.
*/
function isKeyable(value) {
var type = typeof value;
return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')
? (value !== '__proto__')
: (value === null);
}
/**
* Checks if `func` has a lazy counterpart.
*
* @private
* @param {Function} func The function to check.
* @returns {boolean} Returns `true` if `func` has a lazy counterpart,
* else `false`.
*/
function isLaziable(func) {
var funcName = getFuncName(func),
other = lodash[funcName];
if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) {
return false;
}
if (func === other) {
return true;
}
var data = getData(other);
return !!data && func === data[0];
}
/**
* Checks if `func` has its source masked.
*
* @private
* @param {Function} func The function to check.
* @returns {boolean} Returns `true` if `func` is masked, else `false`.
*/
function isMasked(func) {
return !!maskSrcKey && (maskSrcKey in func);
}
/**
* Checks if `func` is capable of being masked.
*
* @private
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `func` is maskable, else `false`.
*/
var isMaskable = coreJsData ? isFunction : stubFalse;
/**
* Checks if `value` is likely a prototype object.
*
* @private
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
*/
function isPrototype(value) {
var Ctor = value && value.constructor,
proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;
return value === proto;
}
/**
* Checks if `value` is suitable for strict equality comparisons, i.e. `===`.
*
* @private
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` if suitable for strict
* equality comparisons, else `false`.
*/
function isStrictComparable(value) {
return value === value && !isObject(value);
}
/**
* A specialized version of `matchesProperty` for source values suitable
* for strict equality comparisons, i.e. `===`.
*
* @private
* @param {string} key The key of the property to get.
* @param {*} srcValue The value to match.
* @returns {Function} Returns the new spec function.
*/
function matchesStrictComparable(key, srcValue) {
return function(object) {
if (object == null) {
return false;
}
return object[key] === srcValue &&
(srcValue !== undefined || (key in Object(object)));
};
}
/**
* Merges the function metadata of `source` into `data`.
*
* Merging metadata reduces the number of wrappers used to invoke a function.
* This is possible because methods like `_.bind`, `_.curry`, and `_.partial`
* may be applied regardless of execution order. Methods like `_.ary` and
* `_.rearg` modify function arguments, making the order in which they are
* executed important, preventing the merging of metadata. However, we make
* an exception for a safe combined case where curried functions have `_.ary`
* and or `_.rearg` applied.
*
* @private
* @param {Array} data The destination metadata.
* @param {Array} source The source metadata.
* @returns {Array} Returns `data`.
*/
function mergeData(data, source) {
var bitmask = data[1],
srcBitmask = source[1],
newBitmask = bitmask | srcBitmask,
isCommon = newBitmask < (BIND_FLAG | BIND_KEY_FLAG | ARY_FLAG);
var isCombo =
((srcBitmask == ARY_FLAG) && (bitmask == CURRY_FLAG)) ||
((srcBitmask == ARY_FLAG) && (bitmask == REARG_FLAG) && (data[7].length <= source[8])) ||
((srcBitmask == (ARY_FLAG | REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == CURRY_FLAG));
// Exit early if metadata can't be merged.
if (!(isCommon || isCombo)) {
return data;
}
// Use source `thisArg` if available.
if (srcBitmask & BIND_FLAG) {
data[2] = source[2];
// Set when currying a bound function.
newBitmask |= bitmask & BIND_FLAG ? 0 : CURRY_BOUND_FLAG;
}
// Compose partial arguments.
var value = source[3];
if (value) {
var partials = data[3];
data[3] = partials ? composeArgs(partials, value, source[4]) : value;
data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4];
}
// Compose partial right arguments.
value = source[5];
if (value) {
partials = data[5];
data[5] = partials ? composeArgsRight(partials, value, source[6]) : value;
data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6];
}
// Use source `argPos` if available.
value = source[7];
if (value) {
data[7] = value;
}
// Use source `ary` if it's smaller.
if (srcBitmask & ARY_FLAG) {
data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);
}
// Use source `arity` if one is not provided.
if (data[9] == null) {
data[9] = source[9];
}
// Use source `func` and merge bitmasks.
data[0] = source[0];
data[1] = newBitmask;
return data;
}
/**
* Used by `_.defaultsDeep` to customize its `_.merge` use.
*
* @private
* @param {*} objValue The destination value.
* @param {*} srcValue The source value.
* @param {string} key The key of the property to merge.
* @param {Object} object The parent object of `objValue`.
* @param {Object} source The parent object of `srcValue`.
* @param {Object} [stack] Tracks traversed source values and their merged
* counterparts.
* @returns {*} Returns the value to assign.
*/
function mergeDefaults(objValue, srcValue, key, object, source, stack) {
if (isObject(objValue) && isObject(srcValue)) {
baseMerge(objValue, srcValue, undefined, mergeDefaults, stack.set(srcValue, objValue));
}
return objValue;
}
/**
* Gets the parent value at `path` of `object`.
*
* @private
* @param {Object} object The object to query.
* @param {Array} path The path to get the parent value of.
* @returns {*} Returns the parent value.
*/
function parent(object, path) {
return path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1));
}
/**
* Reorder `array` according to the specified indexes where the element at
* the first index is assigned as the first element, the element at
* the second index is assigned as the second element, and so on.
*
* @private
* @param {Array} array The array to reorder.
* @param {Array} indexes The arranged array indexes.
* @returns {Array} Returns `array`.
*/
function reorder(array, indexes) {
var arrLength = array.length,
length = nativeMin(indexes.length, arrLength),
oldArray = copyArray(array);
while (length--) {
var index = indexes[length];
array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;
}
return array;
}
/**
* Sets metadata for `func`.
*
* **Note:** If this function becomes hot, i.e. is invoked a lot in a short
* period of time, it will trip its breaker and transition to an identity
* function to avoid garbage collection pauses in V8. See
* [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070)
* for more details.
*
* @private
* @param {Function} func The function to associate metadata with.
* @param {*} data The metadata.
* @returns {Function} Returns `func`.
*/
var setData = (function() {
var count = 0,
lastCalled = 0;
return function(key, value) {
var stamp = now(),
remaining = HOT_SPAN - (stamp - lastCalled);
lastCalled = stamp;
if (remaining > 0) {
if (++count >= HOT_COUNT) {
return key;
}
} else {
count = 0;
}
return baseSetData(key, value);
};
}());
/**
* Converts `string` to a property path array.
*
* @private
* @param {string} string The string to convert.
* @returns {Array} Returns the property path array.
*/
var stringToPath = memoize(function(string) {
var result = [];
toString(string).replace(rePropName, function(match, number, quote, string) {
result.push(quote ? string.replace(reEscapeChar, '$1') : (number || match));
});
return result;
});
/**
* Converts `value` to a string key if it's not a string or symbol.
*
* @private
* @param {*} value The value to inspect.
* @returns {string|symbol} Returns the key.
*/
function toKey(value) {
if (typeof value == 'string' || isSymbol(value)) {
return value;
}
var result = (value + '');
return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
}
/**
* Converts `func` to its source code.
*
* @private
* @param {Function} func The function to process.
* @returns {string} Returns the source code.
*/
function toSource(func) {
if (func != null) {
try {
return funcToString.call(func);
} catch (e) {}
try {
return (func + '');
} catch (e) {}
}
return '';
}
/**
* Creates a clone of `wrapper`.
*
* @private
* @param {Object} wrapper The wrapper to clone.
* @returns {Object} Returns the cloned wrapper.
*/
function wrapperClone(wrapper) {
if (wrapper instanceof LazyWrapper) {
return wrapper.clone();
}
var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__);
result.__actions__ = copyArray(wrapper.__actions__);
result.__index__ = wrapper.__index__;
result.__values__ = wrapper.__values__;
return result;
}
/*------------------------------------------------------------------------*/
/**
* Creates an array of elements split into groups the length of `size`.
* If `array` can't be split evenly, the final chunk will be the remaining
* elements.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Array
* @param {Array} array The array to process.
* @param {number} [size=1] The length of each chunk
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
* @returns {Array} Returns the new array of chunks.
* @example
*
* _.chunk(['a', 'b', 'c', 'd'], 2);
* // => [['a', 'b'], ['c', 'd']]
*
* _.chunk(['a', 'b', 'c', 'd'], 3);
* // => [['a', 'b', 'c'], ['d']]
*/
function chunk(array, size, guard) {
if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) {
size = 1;
} else {
size = nativeMax(toInteger(size), 0);
}
var length = array ? array.length : 0;
if (!length || size < 1) {
return [];
}
var index = 0,
resIndex = 0,
result = Array(nativeCeil(length / size));
while (index < length) {
result[resIndex++] = baseSlice(array, index, (index += size));
}
return result;
}
/**
* Creates an array with all falsey values removed. The values `false`, `null`,
* `0`, `""`, `undefined`, and `NaN` are falsey.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Array
* @param {Array} array The array to compact.
* @returns {Array} Returns the new array of filtered values.
* @example
*
* _.compact([0, 1, false, 2, '', 3]);
* // => [1, 2, 3]
*/
function compact(array) {
var index = -1,
length = array ? array.length : 0,
resIndex = 0,
result = [];
while (++index < length) {
var value = array[index];
if (value) {
result[resIndex++] = value;
}
}
return result;
}
/**
* Creates a new array concatenating `array` with any additional arrays
* and/or values.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {Array} array The array to concatenate.
* @param {...*} [values] The values to concatenate.
* @returns {Array} Returns the new concatenated array.
* @example
*
* var array = [1];
* var other = _.concat(array, 2, [3], [[4]]);
*
* console.log(other);
* // => [1, 2, 3, [4]]
*
* console.log(array);
* // => [1]
*/
function concat() {
var length = arguments.length,
args = Array(length ? length - 1 : 0),
array = arguments[0],
index = length;
while (index--) {
args[index - 1] = arguments[index];
}
return length
? arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1))
: [];
}
/**
* Creates an array of unique `array` values not included in the other given
* arrays using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
* for equality comparisons. The order of result values is determined by the
* order they occur in the first array.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Array
* @param {Array} array The array to inspect.
* @param {...Array} [values] The values to exclude.
* @returns {Array} Returns the new array of filtered values.
* @see _.without, _.xor
* @example
*
* _.difference([2, 1], [2, 3]);
* // => [1]
*/
var difference = rest(function(array, values) {
return isArrayLikeObject(array)
? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true))
: [];
});
/**
* This method is like `_.difference` except that it accepts `iteratee` which
* is invoked for each element of `array` and `values` to generate the criterion
* by which they're compared. Result values are chosen from the first array.
* The iteratee is invoked with one argument: (value).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {Array} array The array to inspect.
* @param {...Array} [values] The values to exclude.
* @param {Array|Function|Object|string} [iteratee=_.identity]
* The iteratee invoked per element.
* @returns {Array} Returns the new array of filtered values.
* @example
*
* _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);
* // => [1.2]
*
* // The `_.property` iteratee shorthand.
* _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');
* // => [{ 'x': 2 }]
*/
var differenceBy = rest(function(array, values) {
var iteratee = last(values);
if (isArrayLikeObject(iteratee)) {
iteratee = undefined;
}
return isArrayLikeObject(array)
? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee))
: [];
});
/**
* This method is like `_.difference` except that it accepts `comparator`
* which is invoked to compare elements of `array` to `values`. Result values
* are chosen from the first array. The comparator is invoked with two arguments:
* (arrVal, othVal).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {Array} array The array to inspect.
* @param {...Array} [values] The values to exclude.
* @param {Function} [comparator] The comparator invoked per element.
* @returns {Array} Returns the new array of filtered values.
* @example
*
* var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
*
* _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);
* // => [{ 'x': 2, 'y': 1 }]
*/
var differenceWith = rest(function(array, values) {
var comparator = last(values);
if (isArrayLikeObject(comparator)) {
comparator = undefined;
}
return isArrayLikeObject(array)
? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator)
: [];
});
/**
* Creates a slice of `array` with `n` elements dropped from the beginning.
*
* @static
* @memberOf _
* @since 0.5.0
* @category Array
* @param {Array} array The array to query.
* @param {number} [n=1] The number of elements to drop.
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
* @returns {Array} Returns the slice of `array`.
* @example
*
* _.drop([1, 2, 3]);
* // => [2, 3]
*
* _.drop([1, 2, 3], 2);
* // => [3]
*
* _.drop([1, 2, 3], 5);
* // => []
*
* _.drop([1, 2, 3], 0);
* // => [1, 2, 3]
*/
function drop(array, n, guard) {
var length = array ? array.length : 0;
if (!length) {
return [];
}
n = (guard || n === undefined) ? 1 : toInteger(n);
return baseSlice(array, n < 0 ? 0 : n, length);
}
/**
* Creates a slice of `array` with `n` elements dropped from the end.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Array
* @param {Array} array The array to query.
* @param {number} [n=1] The number of elements to drop.
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
* @returns {Array} Returns the slice of `array`.
* @example
*
* _.dropRight([1, 2, 3]);
* // => [1, 2]
*
* _.dropRight([1, 2, 3], 2);
* // => [1]
*
* _.dropRight([1, 2, 3], 5);
* // => []
*
* _.dropRight([1, 2, 3], 0);
* // => [1, 2, 3]
*/
function dropRight(array, n, guard) {
var length = array ? array.length : 0;
if (!length) {
return [];
}
n = (guard || n === undefined) ? 1 : toInteger(n);
n = length - n;
return baseSlice(array, 0, n < 0 ? 0 : n);
}
/**
* Creates a slice of `array` excluding elements dropped from the end.
* Elements are dropped until `predicate` returns falsey. The predicate is
* invoked with three arguments: (value, index, array).
*
* @static
* @memberOf _
* @since 3.0.0
* @category Array
* @param {Array} array The array to query.
* @param {Array|Function|Object|string} [predicate=_.identity]
* The function invoked per iteration.
* @returns {Array} Returns the slice of `array`.
* @example
*
* var users = [
* { 'user': 'barney', 'active': true },
* { 'user': 'fred', 'active': false },
* { 'user': 'pebbles', 'active': false }
* ];
*
* _.dropRightWhile(users, function(o) { return !o.active; });
* // => objects for ['barney']
*
* // The `_.matches` iteratee shorthand.
* _.dropRightWhile(users, { 'user': 'pebbles', 'active': false });
* // => objects for ['barney', 'fred']
*
* // The `_.matchesProperty` iteratee shorthand.
* _.dropRightWhile(users, ['active', false]);
* // => objects for ['barney']
*
* // The `_.property` iteratee shorthand.
* _.dropRightWhile(users, 'active');
* // => objects for ['barney', 'fred', 'pebbles']
*/
function dropRightWhile(array, predicate) {
return (array && array.length)
? baseWhile(array, getIteratee(predicate, 3), true, true)
: [];
}
/**
* Creates a slice of `array` excluding elements dropped from the beginning.
* Elements are dropped until `predicate` returns falsey. The predicate is
* invoked with three arguments: (value, index, array).
*
* @static
* @memberOf _
* @since 3.0.0
* @category Array
* @param {Array} array The array to query.
* @param {Array|Function|Object|string} [predicate=_.identity]
* The function invoked per iteration.
* @returns {Array} Returns the slice of `array`.
* @example
*
* var users = [
* { 'user': 'barney', 'active': false },
* { 'user': 'fred', 'active': false },
* { 'user': 'pebbles', 'active': true }
* ];
*
* _.dropWhile(users, function(o) { return !o.active; });
* // => objects for ['pebbles']
*
* // The `_.matches` iteratee shorthand.
* _.dropWhile(users, { 'user': 'barney', 'active': false });
* // => objects for ['fred', 'pebbles']
*
* // The `_.matchesProperty` iteratee shorthand.
* _.dropWhile(users, ['active', false]);
* // => objects for ['pebbles']
*
* // The `_.property` iteratee shorthand.
* _.dropWhile(users, 'active');
* // => objects for ['barney', 'fred', 'pebbles']
*/
function dropWhile(array, predicate) {
return (array && array.length)
? baseWhile(array, getIteratee(predicate, 3), true)
: [];
}
/**
* Fills elements of `array` with `value` from `start` up to, but not
* including, `end`.
*
* **Note:** This method mutates `array`.
*
* @static
* @memberOf _
* @since 3.2.0
* @category Array
* @param {Array} array The array to fill.
* @param {*} value The value to fill `array` with.
* @param {number} [start=0] The start position.
* @param {number} [end=array.length] The end position.
* @returns {Array} Returns `array`.
* @example
*
* var array = [1, 2, 3];
*
* _.fill(array, 'a');
* console.log(array);
* // => ['a', 'a', 'a']
*
* _.fill(Array(3), 2);
* // => [2, 2, 2]
*
* _.fill([4, 6, 8, 10], '*', 1, 3);
* // => [4, '*', '*', 10]
*/
function fill(array, value, start, end) {
var length = array ? array.length : 0;
if (!length) {
return [];
}
if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {
start = 0;
end = length;
}
return baseFill(array, value, start, end);
}
/**
* This method is like `_.find` except that it returns the index of the first
* element `predicate` returns truthy for instead of the element itself.
*
* @static
* @memberOf _
* @since 1.1.0
* @category Array
* @param {Array} array The array to search.
* @param {Array|Function|Object|string} [predicate=_.identity]
* The function invoked per iteration.
* @param {number} [fromIndex=0] The index to search from.
* @returns {number} Returns the index of the found element, else `-1`.
* @example
*
* var users = [
* { 'user': 'barney', 'active': false },
* { 'user': 'fred', 'active': false },
* { 'user': 'pebbles', 'active': true }
* ];
*
* _.findIndex(users, function(o) { return o.user == 'barney'; });
* // => 0
*
* // The `_.matches` iteratee shorthand.
* _.findIndex(users, { 'user': 'fred', 'active': false });
* // => 1
*
* // The `_.matchesProperty` iteratee shorthand.
* _.findIndex(users, ['active', false]);
* // => 0
*
* // The `_.property` iteratee shorthand.
* _.findIndex(users, 'active');
* // => 2
*/
function findIndex(array, predicate, fromIndex) {
var length = array ? array.length : 0;
if (!length) {
return -1;
}
var index = fromIndex == null ? 0 : toInteger(fromIndex);
if (index < 0) {
index = nativeMax(length + index, 0);
}
return baseFindIndex(array, getIteratee(predicate, 3), index);
}
/**
* This method is like `_.findIndex` except that it iterates over elements
* of `collection` from right to left.
*
* @static
* @memberOf _
* @since 2.0.0
* @category Array
* @param {Array} array The array to search.
* @param {Array|Function|Object|string} [predicate=_.identity]
* The function invoked per iteration.
* @param {number} [fromIndex=array.length-1] The index to search from.
* @returns {number} Returns the index of the found element, else `-1`.
* @example
*
* var users = [
* { 'user': 'barney', 'active': true },
* { 'user': 'fred', 'active': false },
* { 'user': 'pebbles', 'active': false }
* ];
*
* _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });
* // => 2
*
* // The `_.matches` iteratee shorthand.
* _.findLastIndex(users, { 'user': 'barney', 'active': true });
* // => 0
*
* // The `_.matchesProperty` iteratee shorthand.
* _.findLastIndex(users, ['active', false]);
* // => 2
*
* // The `_.property` iteratee shorthand.
* _.findLastIndex(users, 'active');
* // => 0
*/
function findLastIndex(array, predicate, fromIndex) {
var length = array ? array.length : 0;
if (!length) {
return -1;
}
var index = length - 1;
if (fromIndex !== undefined) {
index = toInteger(fromIndex);
index = fromIndex < 0
? nativeMax(length + index, 0)
: nativeMin(index, length - 1);
}
return baseFindIndex(array, getIteratee(predicate, 3), index, true);
}
/**
* Flattens `array` a single level deep.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Array
* @param {Array} array The array to flatten.
* @returns {Array} Returns the new flattened array.
* @example
*
* _.flatten([1, [2, [3, [4]], 5]]);
* // => [1, 2, [3, [4]], 5]
*/
function flatten(array) {
var length = array ? array.length : 0;
return length ? baseFlatten(array, 1) : [];
}
/**
* Recursively flattens `array`.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Array
* @param {Array} array The array to flatten.
* @returns {Array} Returns the new flattened array.
* @example
*
* _.flattenDeep([1, [2, [3, [4]], 5]]);
* // => [1, 2, 3, 4, 5]
*/
function flattenDeep(array) {
var length = array ? array.length : 0;
return length ? baseFlatten(array, INFINITY) : [];
}
/**
* Recursively flatten `array` up to `depth` times.
*
* @static
* @memberOf _
* @since 4.4.0
* @category Array
* @param {Array} array The array to flatten.
* @param {number} [depth=1] The maximum recursion depth.
* @returns {Array} Returns the new flattened array.
* @example
*
* var array = [1, [2, [3, [4]], 5]];
*
* _.flattenDepth(array, 1);
* // => [1, 2, [3, [4]], 5]
*
* _.flattenDepth(array, 2);
* // => [1, 2, 3, [4], 5]
*/
function flattenDepth(array, depth) {
var length = array ? array.length : 0;
if (!length) {
return [];
}
depth = depth === undefined ? 1 : toInteger(depth);
return baseFlatten(array, depth);
}
/**
* The inverse of `_.toPairs`; this method returns an object composed
* from key-value `pairs`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {Array} pairs The key-value pairs.
* @returns {Object} Returns the new object.
* @example
*
* _.fromPairs([['fred', 30], ['barney', 40]]);
* // => { 'fred': 30, 'barney': 40 }
*/
function fromPairs(pairs) {
var index = -1,
length = pairs ? pairs.length : 0,
result = {};
while (++index < length) {
var pair = pairs[index];
result[pair[0]] = pair[1];
}
return result;
}
/**
* Gets the first element of `array`.
*
* @static
* @memberOf _
* @since 0.1.0
* @alias first
* @category Array
* @param {Array} array The array to query.
* @returns {*} Returns the first element of `array`.
* @example
*
* _.head([1, 2, 3]);
* // => 1
*
* _.head([]);
* // => undefined
*/
function head(array) {
return (array && array.length) ? array[0] : undefined;
}
/**
* Gets the index at which the first occurrence of `value` is found in `array`
* using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
* for equality comparisons. If `fromIndex` is negative, it's used as the
* offset from the end of `array`.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Array
* @param {Array} array The array to search.
* @param {*} value The value to search for.
* @param {number} [fromIndex=0] The index to search from.
* @returns {number} Returns the index of the matched value, else `-1`.
* @example
*
* _.indexOf([1, 2, 1, 2], 2);
* // => 1
*
* // Search from the `fromIndex`.
* _.indexOf([1, 2, 1, 2], 2, 2);
* // => 3
*/
function indexOf(array, value, fromIndex) {
var length = array ? array.length : 0;
if (!length) {
return -1;
}
var index = fromIndex == null ? 0 : toInteger(fromIndex);
if (index < 0) {
index = nativeMax(length + index, 0);
}
return baseIndexOf(array, value, index);
}
/**
* Gets all but the last element of `array`.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Array
* @param {Array} array The array to query.
* @returns {Array} Returns the slice of `array`.
* @example
*
* _.initial([1, 2, 3]);
* // => [1, 2]
*/
function initial(array) {
return dropRight(array, 1);
}
/**
* Creates an array of unique values that are included in all given arrays
* using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
* for equality comparisons. The order of result values is determined by the
* order they occur in the first array.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Array
* @param {...Array} [arrays] The arrays to inspect.
* @returns {Array} Returns the new array of intersecting values.
* @example
*
* _.intersection([2, 1], [2, 3]);
* // => [2]
*/
var intersection = rest(function(arrays) {
var mapped = arrayMap(arrays, castArrayLikeObject);
return (mapped.length && mapped[0] === arrays[0])
? baseIntersection(mapped)
: [];
});
/**
* This method is like `_.intersection` except that it accepts `iteratee`
* which is invoked for each element of each `arrays` to generate the criterion
* by which they're compared. Result values are chosen from the first array.
* The iteratee is invoked with one argument: (value).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {...Array} [arrays] The arrays to inspect.
* @param {Array|Function|Object|string} [iteratee=_.identity]
* The iteratee invoked per element.
* @returns {Array} Returns the new array of intersecting values.
* @example
*
* _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);
* // => [2.1]
*
* // The `_.property` iteratee shorthand.
* _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
* // => [{ 'x': 1 }]
*/
var intersectionBy = rest(function(arrays) {
var iteratee = last(arrays),
mapped = arrayMap(arrays, castArrayLikeObject);
if (iteratee === last(mapped)) {
iteratee = undefined;
} else {
mapped.pop();
}
return (mapped.length && mapped[0] === arrays[0])
? baseIntersection(mapped, getIteratee(iteratee))
: [];
});
/**
* This method is like `_.intersection` except that it accepts `comparator`
* which is invoked to compare elements of `arrays`. Result values are chosen
* from the first array. The comparator is invoked with two arguments:
* (arrVal, othVal).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {...Array} [arrays] The arrays to inspect.
* @param {Function} [comparator] The comparator invoked per element.
* @returns {Array} Returns the new array of intersecting values.
* @example
*
* var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
* var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
*
* _.intersectionWith(objects, others, _.isEqual);
* // => [{ 'x': 1, 'y': 2 }]
*/
var intersectionWith = rest(function(arrays) {
var comparator = last(arrays),
mapped = arrayMap(arrays, castArrayLikeObject);
if (comparator === last(mapped)) {
comparator = undefined;
} else {
mapped.pop();
}
return (mapped.length && mapped[0] === arrays[0])
? baseIntersection(mapped, undefined, comparator)
: [];
});
/**
* Converts all elements in `array` into a string separated by `separator`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {Array} array The array to convert.
* @param {string} [separator=','] The element separator.
* @returns {string} Returns the joined string.
* @example
*
* _.join(['a', 'b', 'c'], '~');
* // => 'a~b~c'
*/
function join(array, separator) {
return array ? nativeJoin.call(array, separator) : '';
}
/**
* Gets the last element of `array`.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Array
* @param {Array} array The array to query.
* @returns {*} Returns the last element of `array`.
* @example
*
* _.last([1, 2, 3]);
* // => 3
*/
function last(array) {
var length = array ? array.length : 0;
return length ? array[length - 1] : undefined;
}
/**
* This method is like `_.indexOf` except that it iterates over elements of
* `array` from right to left.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Array
* @param {Array} array The array to search.
* @param {*} value The value to search for.
* @param {number} [fromIndex=array.length-1] The index to search from.
* @returns {number} Returns the index of the matched value, else `-1`.
* @example
*
* _.lastIndexOf([1, 2, 1, 2], 2);
* // => 3
*
* // Search from the `fromIndex`.
* _.lastIndexOf([1, 2, 1, 2], 2, 2);
* // => 1
*/
function lastIndexOf(array, value, fromIndex) {
var length = array ? array.length : 0;
if (!length) {
return -1;
}
var index = length;
if (fromIndex !== undefined) {
index = toInteger(fromIndex);
index = (
index < 0
? nativeMax(length + index, 0)
: nativeMin(index, length - 1)
) + 1;
}
if (value !== value) {
return indexOfNaN(array, index - 1, true);
}
while (index--) {
if (array[index] === value) {
return index;
}
}
return -1;
}
/**
* Gets the element at index `n` of `array`. If `n` is negative, the nth
* element from the end is returned.
*
* @static
* @memberOf _
* @since 4.11.0
* @category Array
* @param {Array} array The array to query.
* @param {number} [n=0] The index of the element to return.
* @returns {*} Returns the nth element of `array`.
* @example
*
* var array = ['a', 'b', 'c', 'd'];
*
* _.nth(array, 1);
* // => 'b'
*
* _.nth(array, -2);
* // => 'c';
*/
function nth(array, n) {
return (array && array.length) ? baseNth(array, toInteger(n)) : undefined;
}
/**
* Removes all given values from `array` using
* [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
* for equality comparisons.
*
* **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`
* to remove elements from an array by predicate.
*
* @static
* @memberOf _
* @since 2.0.0
* @category Array
* @param {Array} array The array to modify.
* @param {...*} [values] The values to remove.
* @returns {Array} Returns `array`.
* @example
*
* var array = ['a', 'b', 'c', 'a', 'b', 'c'];
*
* _.pull(array, 'a', 'c');
* console.log(array);
* // => ['b', 'b']
*/
var pull = rest(pullAll);
/**
* This method is like `_.pull` except that it accepts an array of values to remove.
*
* **Note:** Unlike `_.difference`, this method mutates `array`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {Array} array The array to modify.
* @param {Array} values The values to remove.
* @returns {Array} Returns `array`.
* @example
*
* var array = ['a', 'b', 'c', 'a', 'b', 'c'];
*
* _.pullAll(array, ['a', 'c']);
* console.log(array);
* // => ['b', 'b']
*/
function pullAll(array, values) {
return (array && array.length && values && values.length)
? basePullAll(array, values)
: array;
}
/**
* This method is like `_.pullAll` except that it accepts `iteratee` which is
* invoked for each element of `array` and `values` to generate the criterion
* by which they're compared. The iteratee is invoked with one argument: (value).
*
* **Note:** Unlike `_.differenceBy`, this method mutates `array`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {Array} array The array to modify.
* @param {Array} values The values to remove.
* @param {Array|Function|Object|string} [iteratee=_.identity]
* The iteratee invoked per element.
* @returns {Array} Returns `array`.
* @example
*
* var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }];
*
* _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x');
* console.log(array);
* // => [{ 'x': 2 }]
*/
function pullAllBy(array, values, iteratee) {
return (array && array.length && values && values.length)
? basePullAll(array, values, getIteratee(iteratee))
: array;
}
/**
* This method is like `_.pullAll` except that it accepts `comparator` which
* is invoked to compare elements of `array` to `values`. The comparator is
* invoked with two arguments: (arrVal, othVal).
*
* **Note:** Unlike `_.differenceWith`, this method mutates `array`.
*
* @static
* @memberOf _
* @since 4.6.0
* @category Array
* @param {Array} array The array to modify.
* @param {Array} values The values to remove.
* @param {Function} [comparator] The comparator invoked per element.
* @returns {Array} Returns `array`.
* @example
*
* var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }];
*
* _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual);
* console.log(array);
* // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }]
*/
function pullAllWith(array, values, comparator) {
return (array && array.length && values && values.length)
? basePullAll(array, values, undefined, comparator)
: array;
}
/**
* Removes elements from `array` corresponding to `indexes` and returns an
* array of removed elements.
*
* **Note:** Unlike `_.at`, this method mutates `array`.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Array
* @param {Array} array The array to modify.
* @param {...(number|number[])} [indexes] The indexes of elements to remove.
* @returns {Array} Returns the new array of removed elements.
* @example
*
* var array = ['a', 'b', 'c', 'd'];
* var pulled = _.pullAt(array, [1, 3]);
*
* console.log(array);
* // => ['a', 'c']
*
* console.log(pulled);
* // => ['b', 'd']
*/
var pullAt = rest(function(array, indexes) {
indexes = baseFlatten(indexes, 1);
var length = array ? array.length : 0,
result = baseAt(array, indexes);
basePullAt(array, arrayMap(indexes, function(index) {
return isIndex(index, length) ? +index : index;
}).sort(compareAscending));
return result;
});
/**
* Removes all elements from `array` that `predicate` returns truthy for
* and returns an array of the removed elements. The predicate is invoked
* with three arguments: (value, index, array).
*
* **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull`
* to pull elements from an array by value.
*
* @static
* @memberOf _
* @since 2.0.0
* @category Array
* @param {Array} array The array to modify.
* @param {Array|Function|Object|string} [predicate=_.identity]
* The function invoked per iteration.
* @returns {Array} Returns the new array of removed elements.
* @example
*
* var array = [1, 2, 3, 4];
* var evens = _.remove(array, function(n) {
* return n % 2 == 0;
* });
*
* console.log(array);
* // => [1, 3]
*
* console.log(evens);
* // => [2, 4]
*/
function remove(array, predicate) {
var result = [];
if (!(array && array.length)) {
return result;
}
var index = -1,
indexes = [],
length = array.length;
predicate = getIteratee(predicate, 3);
while (++index < length) {
var value = array[index];
if (predicate(value, index, array)) {
result.push(value);
indexes.push(index);
}
}
basePullAt(array, indexes);
return result;
}
/**
* Reverses `array` so that the first element becomes the last, the second
* element becomes the second to last, and so on.
*
* **Note:** This method mutates `array` and is based on
* [`Array#reverse`](https://mdn.io/Array/reverse).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {Array} array The array to modify.
* @returns {Array} Returns `array`.
* @example
*
* var array = [1, 2, 3];
*
* _.reverse(array);
* // => [3, 2, 1]
*
* console.log(array);
* // => [3, 2, 1]
*/
function reverse(array) {
return array ? nativeReverse.call(array) : array;
}
/**
* Creates a slice of `array` from `start` up to, but not including, `end`.
*
* **Note:** This method is used instead of
* [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are
* returned.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Array
* @param {Array} array The array to slice.
* @param {number} [start=0] The start position.
* @param {number} [end=array.length] The end position.
* @returns {Array} Returns the slice of `array`.
*/
function slice(array, start, end) {
var length = array ? array.length : 0;
if (!length) {
return [];
}
if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {
start = 0;
end = length;
}
else {
start = start == null ? 0 : toInteger(start);
end = end === undefined ? length : toInteger(end);
}
return baseSlice(array, start, end);
}
/**
* Uses a binary search to determine the lowest index at which `value`
* should be inserted into `array` in order to maintain its sort order.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Array
* @param {Array} array The sorted array to inspect.
* @param {*} value The value to evaluate.
* @returns {number} Returns the index at which `value` should be inserted
* into `array`.
* @example
*
* _.sortedIndex([30, 50], 40);
* // => 1
*/
function sortedIndex(array, value) {
return baseSortedIndex(array, value);
}
/**
* This method is like `_.sortedIndex` except that it accepts `iteratee`
* which is invoked for `value` and each element of `array` to compute their
* sort ranking. The iteratee is invoked with one argument: (value).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {Array} array The sorted array to inspect.
* @param {*} value The value to evaluate.
* @param {Array|Function|Object|string} [iteratee=_.identity]
* The iteratee invoked per element.
* @returns {number} Returns the index at which `value` should be inserted
* into `array`.
* @example
*
* var objects = [{ 'x': 4 }, { 'x': 5 }];
*
* _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
* // => 0
*
* // The `_.property` iteratee shorthand.
* _.sortedIndexBy(objects, { 'x': 4 }, 'x');
* // => 0
*/
function sortedIndexBy(array, value, iteratee) {
return baseSortedIndexBy(array, value, getIteratee(iteratee));
}
/**
* This method is like `_.indexOf` except that it performs a binary
* search on a sorted `array`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {Array} array The array to search.
* @param {*} value The value to search for.
* @returns {number} Returns the index of the matched value, else `-1`.
* @example
*
* _.sortedIndexOf([4, 5, 5, 5, 6], 5);
* // => 1
*/
function sortedIndexOf(array, value) {
var length = array ? array.length : 0;
if (length) {
var index = baseSortedIndex(array, value);
if (index < length && eq(array[index], value)) {
return index;
}
}
return -1;
}
/**
* This method is like `_.sortedIndex` except that it returns the highest
* index at which `value` should be inserted into `array` in order to
* maintain its sort order.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Array
* @param {Array} array The sorted array to inspect.
* @param {*} value The value to evaluate.
* @returns {number} Returns the index at which `value` should be inserted
* into `array`.
* @example
*
* _.sortedLastIndex([4, 5, 5, 5, 6], 5);
* // => 4
*/
function sortedLastIndex(array, value) {
return baseSortedIndex(array, value, true);
}
/**
* This method is like `_.sortedLastIndex` except that it accepts `iteratee`
* which is invoked for `value` and each element of `array` to compute their
* sort ranking. The iteratee is invoked with one argument: (value).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {Array} array The sorted array to inspect.
* @param {*} value The value to evaluate.
* @param {Array|Function|Object|string} [iteratee=_.identity]
* The iteratee invoked per element.
* @returns {number} Returns the index at which `value` should be inserted
* into `array`.
* @example
*
* var objects = [{ 'x': 4 }, { 'x': 5 }];
*
* _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
* // => 1
*
* // The `_.property` iteratee shorthand.
* _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');
* // => 1
*/
function sortedLastIndexBy(array, value, iteratee) {
return baseSortedIndexBy(array, value, getIteratee(iteratee), true);
}
/**
* This method is like `_.lastIndexOf` except that it performs a binary
* search on a sorted `array`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {Array} array The array to search.
* @param {*} value The value to search for.
* @returns {number} Returns the index of the matched value, else `-1`.
* @example
*
* _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);
* // => 3
*/
function sortedLastIndexOf(array, value) {
var length = array ? array.length : 0;
if (length) {
var index = baseSortedIndex(array, value, true) - 1;
if (eq(array[index], value)) {
return index;
}
}
return -1;
}
/**
* This method is like `_.uniq` except that it's designed and optimized
* for sorted arrays.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {Array} array The array to inspect.
* @returns {Array} Returns the new duplicate free array.
* @example
*
* _.sortedUniq([1, 1, 2]);
* // => [1, 2]
*/
function sortedUniq(array) {
return (array && array.length)
? baseSortedUniq(array)
: [];
}
/**
* This method is like `_.uniqBy` except that it's designed and optimized
* for sorted arrays.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {Array} array The array to inspect.
* @param {Function} [iteratee] The iteratee invoked per element.
* @returns {Array} Returns the new duplicate free array.
* @example
*
* _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);
* // => [1.1, 2.3]
*/
function sortedUniqBy(array, iteratee) {
return (array && array.length)
? baseSortedUniq(array, getIteratee(iteratee))
: [];
}
/**
* Gets all but the first element of `array`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {Array} array The array to query.
* @returns {Array} Returns the slice of `array`.
* @example
*
* _.tail([1, 2, 3]);
* // => [2, 3]
*/
function tail(array) {
return drop(array, 1);
}
/**
* Creates a slice of `array` with `n` elements taken from the beginning.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Array
* @param {Array} array The array to query.
* @param {number} [n=1] The number of elements to take.
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
* @returns {Array} Returns the slice of `array`.
* @example
*
* _.take([1, 2, 3]);
* // => [1]
*
* _.take([1, 2, 3], 2);
* // => [1, 2]
*
* _.take([1, 2, 3], 5);
* // => [1, 2, 3]
*
* _.take([1, 2, 3], 0);
* // => []
*/
function take(array, n, guard) {
if (!(array && array.length)) {
return [];
}
n = (guard || n === undefined) ? 1 : toInteger(n);
return baseSlice(array, 0, n < 0 ? 0 : n);
}
/**
* Creates a slice of `array` with `n` elements taken from the end.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Array
* @param {Array} array The array to query.
* @param {number} [n=1] The number of elements to take.
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
* @returns {Array} Returns the slice of `array`.
* @example
*
* _.takeRight([1, 2, 3]);
* // => [3]
*
* _.takeRight([1, 2, 3], 2);
* // => [2, 3]
*
* _.takeRight([1, 2, 3], 5);
* // => [1, 2, 3]
*
* _.takeRight([1, 2, 3], 0);
* // => []
*/
function takeRight(array, n, guard) {
var length = array ? array.length : 0;
if (!length) {
return [];
}
n = (guard || n === undefined) ? 1 : toInteger(n);
n = length - n;
return baseSlice(array, n < 0 ? 0 : n, length);
}
/**
* Creates a slice of `array` with elements taken from the end. Elements are
* taken until `predicate` returns falsey. The predicate is invoked with
* three arguments: (value, index, array).
*
* @static
* @memberOf _
* @since 3.0.0
* @category Array
* @param {Array} array The array to query.
* @param {Array|Function|Object|string} [predicate=_.identity]
* The function invoked per iteration.
* @returns {Array} Returns the slice of `array`.
* @example
*
* var users = [
* { 'user': 'barney', 'active': true },
* { 'user': 'fred', 'active': false },
* { 'user': 'pebbles', 'active': false }
* ];
*
* _.takeRightWhile(users, function(o) { return !o.active; });
* // => objects for ['fred', 'pebbles']
*
* // The `_.matches` iteratee shorthand.
* _.takeRightWhile(users, { 'user': 'pebbles', 'active': false });
* // => objects for ['pebbles']
*
* // The `_.matchesProperty` iteratee shorthand.
* _.takeRightWhile(users, ['active', false]);
* // => objects for ['fred', 'pebbles']
*
* // The `_.property` iteratee shorthand.
* _.takeRightWhile(users, 'active');
* // => []
*/
function takeRightWhile(array, predicate) {
return (array && array.length)
? baseWhile(array, getIteratee(predicate, 3), false, true)
: [];
}
/**
* Creates a slice of `array` with elements taken from the beginning. Elements
* are taken until `predicate` returns falsey. The predicate is invoked with
* three arguments: (value, index, array).
*
* @static
* @memberOf _
* @since 3.0.0
* @category Array
* @param {Array} array The array to query.
* @param {Array|Function|Object|string} [predicate=_.identity]
* The function invoked per iteration.
* @returns {Array} Returns the slice of `array`.
* @example
*
* var users = [
* { 'user': 'barney', 'active': false },
* { 'user': 'fred', 'active': false},
* { 'user': 'pebbles', 'active': true }
* ];
*
* _.takeWhile(users, function(o) { return !o.active; });
* // => objects for ['barney', 'fred']
*
* // The `_.matches` iteratee shorthand.
* _.takeWhile(users, { 'user': 'barney', 'active': false });
* // => objects for ['barney']
*
* // The `_.matchesProperty` iteratee shorthand.
* _.takeWhile(users, ['active', false]);
* // => objects for ['barney', 'fred']
*
* // The `_.property` iteratee shorthand.
* _.takeWhile(users, 'active');
* // => []
*/
function takeWhile(array, predicate) {
return (array && array.length)
? baseWhile(array, getIteratee(predicate, 3))
: [];
}
/**
* Creates an array of unique values, in order, from all given arrays using
* [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
* for equality comparisons.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Array
* @param {...Array} [arrays] The arrays to inspect.
* @returns {Array} Returns the new array of combined values.
* @example
*
* _.union([2], [1, 2]);
* // => [2, 1]
*/
var union = rest(function(arrays) {
return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true));
});
/**
* This method is like `_.union` except that it accepts `iteratee` which is
* invoked for each element of each `arrays` to generate the criterion by
* which uniqueness is computed. The iteratee is invoked with one argument:
* (value).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {...Array} [arrays] The arrays to inspect.
* @param {Array|Function|Object|string} [iteratee=_.identity]
* The iteratee invoked per element.
* @returns {Array} Returns the new array of combined values.
* @example
*
* _.unionBy([2.1], [1.2, 2.3], Math.floor);
* // => [2.1, 1.2]
*
* // The `_.property` iteratee shorthand.
* _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
* // => [{ 'x': 1 }, { 'x': 2 }]
*/
var unionBy = rest(function(arrays) {
var iteratee = last(arrays);
if (isArrayLikeObject(iteratee)) {
iteratee = undefined;
}
return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee));
});
/**
* This method is like `_.union` except that it accepts `comparator` which
* is invoked to compare elements of `arrays`. The comparator is invoked
* with two arguments: (arrVal, othVal).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {...Array} [arrays] The arrays to inspect.
* @param {Function} [comparator] The comparator invoked per element.
* @returns {Array} Returns the new array of combined values.
* @example
*
* var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
* var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
*
* _.unionWith(objects, others, _.isEqual);
* // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
*/
var unionWith = rest(function(arrays) {
var comparator = last(arrays);
if (isArrayLikeObject(comparator)) {
comparator = undefined;
}
return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator);
});
/**
* Creates a duplicate-free version of an array, using
* [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
* for equality comparisons, in which only the first occurrence of each
* element is kept.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Array
* @param {Array} array The array to inspect.
* @returns {Array} Returns the new duplicate free array.
* @example
*
* _.uniq([2, 1, 2]);
* // => [2, 1]
*/
function uniq(array) {
return (array && array.length)
? baseUniq(array)
: [];
}
/**
* This method is like `_.uniq` except that it accepts `iteratee` which is
* invoked for each element in `array` to generate the criterion by which
* uniqueness is computed. The iteratee is invoked with one argument: (value).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {Array} array The array to inspect.
* @param {Array|Function|Object|string} [iteratee=_.identity]
* The iteratee invoked per element.
* @returns {Array} Returns the new duplicate free array.
* @example
*
* _.uniqBy([2.1, 1.2, 2.3], Math.floor);
* // => [2.1, 1.2]
*
* // The `_.property` iteratee shorthand.
* _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
* // => [{ 'x': 1 }, { 'x': 2 }]
*/
function uniqBy(array, iteratee) {
return (array && array.length)
? baseUniq(array, getIteratee(iteratee))
: [];
}
/**
* This method is like `_.uniq` except that it accepts `comparator` which
* is invoked to compare elements of `array`. The comparator is invoked with
* two arguments: (arrVal, othVal).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {Array} array The array to inspect.
* @param {Function} [comparator] The comparator invoked per element.
* @returns {Array} Returns the new duplicate free array.
* @example
*
* var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];
*
* _.uniqWith(objects, _.isEqual);
* // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]
*/
function uniqWith(array, comparator) {
return (array && array.length)
? baseUniq(array, undefined, comparator)
: [];
}
/**
* This method is like `_.zip` except that it accepts an array of grouped
* elements and creates an array regrouping the elements to their pre-zip
* configuration.
*
* @static
* @memberOf _
* @since 1.2.0
* @category Array
* @param {Array} array The array of grouped elements to process.
* @returns {Array} Returns the new array of regrouped elements.
* @example
*
* var zipped = _.zip(['fred', 'barney'], [30, 40], [true, false]);
* // => [['fred', 30, true], ['barney', 40, false]]
*
* _.unzip(zipped);
* // => [['fred', 'barney'], [30, 40], [true, false]]
*/
function unzip(array) {
if (!(array && array.length)) {
return [];
}
var length = 0;
array = arrayFilter(array, function(group) {
if (isArrayLikeObject(group)) {
length = nativeMax(group.length, length);
return true;
}
});
return baseTimes(length, function(index) {
return arrayMap(array, baseProperty(index));
});
}
/**
* This method is like `_.unzip` except that it accepts `iteratee` to specify
* how regrouped values should be combined. The iteratee is invoked with the
* elements of each group: (...group).
*
* @static
* @memberOf _
* @since 3.8.0
* @category Array
* @param {Array} array The array of grouped elements to process.
* @param {Function} [iteratee=_.identity] The function to combine
* regrouped values.
* @returns {Array} Returns the new array of regrouped elements.
* @example
*
* var zipped = _.zip([1, 2], [10, 20], [100, 200]);
* // => [[1, 10, 100], [2, 20, 200]]
*
* _.unzipWith(zipped, _.add);
* // => [3, 30, 300]
*/
function unzipWith(array, iteratee) {
if (!(array && array.length)) {
return [];
}
var result = unzip(array);
if (iteratee == null) {
return result;
}
return arrayMap(result, function(group) {
return apply(iteratee, undefined, group);
});
}
/**
* Creates an array excluding all given values using
* [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
* for equality comparisons.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Array
* @param {Array} array The array to inspect.
* @param {...*} [values] The values to exclude.
* @returns {Array} Returns the new array of filtered values.
* @see _.difference, _.xor
* @example
*
* _.without([2, 1, 2, 3], 1, 2);
* // => [3]
*/
var without = rest(function(array, values) {
return isArrayLikeObject(array)
? baseDifference(array, values)
: [];
});
/**
* Creates an array of unique values that is the
* [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)
* of the given arrays. The order of result values is determined by the order
* they occur in the arrays.
*
* @static
* @memberOf _
* @since 2.4.0
* @category Array
* @param {...Array} [arrays] The arrays to inspect.
* @returns {Array} Returns the new array of filtered values.
* @see _.difference, _.without
* @example
*
* _.xor([2, 1], [2, 3]);
* // => [1, 3]
*/
var xor = rest(function(arrays) {
return baseXor(arrayFilter(arrays, isArrayLikeObject));
});
/**
* This method is like `_.xor` except that it accepts `iteratee` which is
* invoked for each element of each `arrays` to generate the criterion by
* which by which they're compared. The iteratee is invoked with one argument:
* (value).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {...Array} [arrays] The arrays to inspect.
* @param {Array|Function|Object|string} [iteratee=_.identity]
* The iteratee invoked per element.
* @returns {Array} Returns the new array of filtered values.
* @example
*
* _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);
* // => [1.2, 3.4]
*
* // The `_.property` iteratee shorthand.
* _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
* // => [{ 'x': 2 }]
*/
var xorBy = rest(function(arrays) {
var iteratee = last(arrays);
if (isArrayLikeObject(iteratee)) {
iteratee = undefined;
}
return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee));
});
/**
* This method is like `_.xor` except that it accepts `comparator` which is
* invoked to compare elements of `arrays`. The comparator is invoked with
* two arguments: (arrVal, othVal).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Array
* @param {...Array} [arrays] The arrays to inspect.
* @param {Function} [comparator] The comparator invoked per element.
* @returns {Array} Returns the new array of filtered values.
* @example
*
* var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
* var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
*
* _.xorWith(objects, others, _.isEqual);
* // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
*/
var xorWith = rest(function(arrays) {
var comparator = last(arrays);
if (isArrayLikeObject(comparator)) {
comparator = undefined;
}
return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator);
});
/**
* Creates an array of grouped elements, the first of which contains the
* first elements of the given arrays, the second of which contains the
* second elements of the given arrays, and so on.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Array
* @param {...Array} [arrays] The arrays to process.
* @returns {Array} Returns the new array of grouped elements.
* @example
*
* _.zip(['fred', 'barney'], [30, 40], [true, false]);
* // => [['fred', 30, true], ['barney', 40, false]]
*/
var zip = rest(unzip);
/**
* This method is like `_.fromPairs` except that it accepts two arrays,
* one of property identifiers and one of corresponding values.
*
* @static
* @memberOf _
* @since 0.4.0
* @category Array
* @param {Array} [props=[]] The property identifiers.
* @param {Array} [values=[]] The property values.
* @returns {Object} Returns the new object.
* @example
*
* _.zipObject(['a', 'b'], [1, 2]);
* // => { 'a': 1, 'b': 2 }
*/
function zipObject(props, values) {
return baseZipObject(props || [], values || [], assignValue);
}
/**
* This method is like `_.zipObject` except that it supports property paths.
*
* @static
* @memberOf _
* @since 4.1.0
* @category Array
* @param {Array} [props=[]] The property identifiers.
* @param {Array} [values=[]] The property values.
* @returns {Object} Returns the new object.
* @example
*
* _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]);
* // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } }
*/
function zipObjectDeep(props, values) {
return baseZipObject(props || [], values || [], baseSet);
}
/**
* This method is like `_.zip` except that it accepts `iteratee` to specify
* how grouped values should be combined. The iteratee is invoked with the
* elements of each group: (...group).
*
* @static
* @memberOf _
* @since 3.8.0
* @category Array
* @param {...Array} [arrays] The arrays to process.
* @param {Function} [iteratee=_.identity] The function to combine grouped values.
* @returns {Array} Returns the new array of grouped elements.
* @example
*
* _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) {
* return a + b + c;
* });
* // => [111, 222]
*/
var zipWith = rest(function(arrays) {
var length = arrays.length,
iteratee = length > 1 ? arrays[length - 1] : undefined;
iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined;
return unzipWith(arrays, iteratee);
});
/*------------------------------------------------------------------------*/
/**
* Creates a `lodash` wrapper instance that wraps `value` with explicit method
* chain sequences enabled. The result of such sequences must be unwrapped
* with `_#value`.
*
* @static
* @memberOf _
* @since 1.3.0
* @category Seq
* @param {*} value The value to wrap.
* @returns {Object} Returns the new `lodash` wrapper instance.
* @example
*
* var users = [
* { 'user': 'barney', 'age': 36 },
* { 'user': 'fred', 'age': 40 },
* { 'user': 'pebbles', 'age': 1 }
* ];
*
* var youngest = _
* .chain(users)
* .sortBy('age')
* .map(function(o) {
* return o.user + ' is ' + o.age;
* })
* .head()
* .value();
* // => 'pebbles is 1'
*/
function chain(value) {
var result = lodash(value);
result.__chain__ = true;
return result;
}
/**
* This method invokes `interceptor` and returns `value`. The interceptor
* is invoked with one argument; (value). The purpose of this method is to
* "tap into" a method chain sequence in order to modify intermediate results.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Seq
* @param {*} value The value to provide to `interceptor`.
* @param {Function} interceptor The function to invoke.
* @returns {*} Returns `value`.
* @example
*
* _([1, 2, 3])
* .tap(function(array) {
* // Mutate input array.
* array.pop();
* })
* .reverse()
* .value();
* // => [2, 1]
*/
function tap(value, interceptor) {
interceptor(value);
return value;
}
/**
* This method is like `_.tap` except that it returns the result of `interceptor`.
* The purpose of this method is to "pass thru" values replacing intermediate
* results in a method chain sequence.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Seq
* @param {*} value The value to provide to `interceptor`.
* @param {Function} interceptor The function to invoke.
* @returns {*} Returns the result of `interceptor`.
* @example
*
* _(' abc ')
* .chain()
* .trim()
* .thru(function(value) {
* return [value];
* })
* .value();
* // => ['abc']
*/
function thru(value, interceptor) {
return interceptor(value);
}
/**
* This method is the wrapper version of `_.at`.
*
* @name at
* @memberOf _
* @since 1.0.0
* @category Seq
* @param {...(string|string[])} [paths] The property paths of elements to pick.
* @returns {Object} Returns the new `lodash` wrapper instance.
* @example
*
* var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
*
* _(object).at(['a[0].b.c', 'a[1]']).value();
* // => [3, 4]
*/
var wrapperAt = rest(function(paths) {
paths = baseFlatten(paths, 1);
var length = paths.length,
start = length ? paths[0] : 0,
value = this.__wrapped__,
interceptor = function(object) { return baseAt(object, paths); };
if (length > 1 || this.__actions__.length ||
!(value instanceof LazyWrapper) || !isIndex(start)) {
return this.thru(interceptor);
}
value = value.slice(start, +start + (length ? 1 : 0));
value.__actions__.push({
'func': thru,
'args': [interceptor],
'thisArg': undefined
});
return new LodashWrapper(value, this.__chain__).thru(function(array) {
if (length && !array.length) {
array.push(undefined);
}
return array;
});
});
/**
* Creates a `lodash` wrapper instance with explicit method chain sequences enabled.
*
* @name chain
* @memberOf _
* @since 0.1.0
* @category Seq
* @returns {Object} Returns the new `lodash` wrapper instance.
* @example
*
* var users = [
* { 'user': 'barney', 'age': 36 },
* { 'user': 'fred', 'age': 40 }
* ];
*
* // A sequence without explicit chaining.
* _(users).head();
* // => { 'user': 'barney', 'age': 36 }
*
* // A sequence with explicit chaining.
* _(users)
* .chain()
* .head()
* .pick('user')
* .value();
* // => { 'user': 'barney' }
*/
function wrapperChain() {
return chain(this);
}
/**
* Executes the chain sequence and returns the wrapped result.
*
* @name commit
* @memberOf _
* @since 3.2.0
* @category Seq
* @returns {Object} Returns the new `lodash` wrapper instance.
* @example
*
* var array = [1, 2];
* var wrapped = _(array).push(3);
*
* console.log(array);
* // => [1, 2]
*
* wrapped = wrapped.commit();
* console.log(array);
* // => [1, 2, 3]
*
* wrapped.last();
* // => 3
*
* console.log(array);
* // => [1, 2, 3]
*/
function wrapperCommit() {
return new LodashWrapper(this.value(), this.__chain__);
}
/**
* Gets the next value on a wrapped object following the
* [iterator protocol](https://mdn.io/iteration_protocols#iterator).
*
* @name next
* @memberOf _
* @since 4.0.0
* @category Seq
* @returns {Object} Returns the next iterator value.
* @example
*
* var wrapped = _([1, 2]);
*
* wrapped.next();
* // => { 'done': false, 'value': 1 }
*
* wrapped.next();
* // => { 'done': false, 'value': 2 }
*
* wrapped.next();
* // => { 'done': true, 'value': undefined }
*/
function wrapperNext() {
if (this.__values__ === undefined) {
this.__values__ = toArray(this.value());
}
var done = this.__index__ >= this.__values__.length,
value = done ? undefined : this.__values__[this.__index__++];
return { 'done': done, 'value': value };
}
/**
* Enables the wrapper to be iterable.
*
* @name Symbol.iterator
* @memberOf _
* @since 4.0.0
* @category Seq
* @returns {Object} Returns the wrapper object.
* @example
*
* var wrapped = _([1, 2]);
*
* wrapped[Symbol.iterator]() === wrapped;
* // => true
*
* Array.from(wrapped);
* // => [1, 2]
*/
function wrapperToIterator() {
return this;
}
/**
* Creates a clone of the chain sequence planting `value` as the wrapped value.
*
* @name plant
* @memberOf _
* @since 3.2.0
* @category Seq
* @param {*} value The value to plant.
* @returns {Object} Returns the new `lodash` wrapper instance.
* @example
*
* function square(n) {
* return n * n;
* }
*
* var wrapped = _([1, 2]).map(square);
* var other = wrapped.plant([3, 4]);
*
* other.value();
* // => [9, 16]
*
* wrapped.value();
* // => [1, 4]
*/
function wrapperPlant(value) {
var result,
parent = this;
while (parent instanceof baseLodash) {
var clone = wrapperClone(parent);
clone.__index__ = 0;
clone.__values__ = undefined;
if (result) {
previous.__wrapped__ = clone;
} else {
result = clone;
}
var previous = clone;
parent = parent.__wrapped__;
}
previous.__wrapped__ = value;
return result;
}
/**
* This method is the wrapper version of `_.reverse`.
*
* **Note:** This method mutates the wrapped array.
*
* @name reverse
* @memberOf _
* @since 0.1.0
* @category Seq
* @returns {Object} Returns the new `lodash` wrapper instance.
* @example
*
* var array = [1, 2, 3];
*
* _(array).reverse().value()
* // => [3, 2, 1]
*
* console.log(array);
* // => [3, 2, 1]
*/
function wrapperReverse() {
var value = this.__wrapped__;
if (value instanceof LazyWrapper) {
var wrapped = value;
if (this.__actions__.length) {
wrapped = new LazyWrapper(this);
}
wrapped = wrapped.reverse();
wrapped.__actions__.push({
'func': thru,
'args': [reverse],
'thisArg': undefined
});
return new LodashWrapper(wrapped, this.__chain__);
}
return this.thru(reverse);
}
/**
* Executes the chain sequence to resolve the unwrapped value.
*
* @name value
* @memberOf _
* @since 0.1.0
* @alias toJSON, valueOf
* @category Seq
* @returns {*} Returns the resolved unwrapped value.
* @example
*
* _([1, 2, 3]).value();
* // => [1, 2, 3]
*/
function wrapperValue() {
return baseWrapperValue(this.__wrapped__, this.__actions__);
}
/*------------------------------------------------------------------------*/
/**
* Creates an object composed of keys generated from the results of running
* each element of `collection` thru `iteratee`. The corresponding value of
* each key is the number of times the key was returned by `iteratee`. The
* iteratee is invoked with one argument: (value).
*
* @static
* @memberOf _
* @since 0.5.0
* @category Collection
* @param {Array|Object} collection The collection to iterate over.
* @param {Array|Function|Object|string} [iteratee=_.identity]
* The iteratee to transform keys.
* @returns {Object} Returns the composed aggregate object.
* @example
*
* _.countBy([6.1, 4.2, 6.3], Math.floor);
* // => { '4': 1, '6': 2 }
*
* // The `_.property` iteratee shorthand.
* _.countBy(['one', 'two', 'three'], 'length');
* // => { '3': 2, '5': 1 }
*/
var countBy = createAggregator(function(result, value, key) {
hasOwnProperty.call(result, key) ? ++result[key] : (result[key] = 1);
});
/**
* Checks if `predicate` returns truthy for **all** elements of `collection`.
* Iteration is stopped once `predicate` returns falsey. The predicate is
* invoked with three arguments: (value, index|key, collection).
*
* @static
* @memberOf _
* @since 0.1.0
* @category Collection
* @param {Array|Object} collection The collection to iterate over.
* @param {Array|Function|Object|string} [predicate=_.identity]
* The function invoked per iteration.
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
* @returns {boolean} Returns `true` if all elements pass the predicate check,
* else `false`.
* @example
*
* _.every([true, 1, null, 'yes'], Boolean);
* // => false
*
* var users = [
* { 'user': 'barney', 'age': 36, 'active': false },
* { 'user': 'fred', 'age': 40, 'active': false }
* ];
*
* // The `_.matches` iteratee shorthand.
* _.every(users, { 'user': 'barney', 'active': false });
* // => false
*
* // The `_.matchesProperty` iteratee shorthand.
* _.every(users, ['active', false]);
* // => true
*
* // The `_.property` iteratee shorthand.
* _.every(users, 'active');
* // => false
*/
function every(collection, predicate, guard) {
var func = isArray(collection) ? arrayEvery : baseEvery;
if (guard && isIterateeCall(collection, predicate, guard)) {
predicate = undefined;
}
return func(collection, getIteratee(predicate, 3));
}
/**
* Iterates over elements of `collection`, returning an array of all elements
* `predicate` returns truthy for. The predicate is invoked with three
* arguments: (value, index|key, collection).
*
* @static
* @memberOf _
* @since 0.1.0
* @category Collection
* @param {Array|Object} collection The collection to iterate over.
* @param {Array|Function|Object|string} [predicate=_.identity]
* The function invoked per iteration.
* @returns {Array} Returns the new filtered array.
* @see _.reject
* @example
*
* var users = [
* { 'user': 'barney', 'age': 36, 'active': true },
* { 'user': 'fred', 'age': 40, 'active': false }
* ];
*
* _.filter(users, function(o) { return !o.active; });
* // => objects for ['fred']
*
* // The `_.matches` iteratee shorthand.
* _.filter(users, { 'age': 36, 'active': true });
* // => objects for ['barney']
*
* // The `_.matchesProperty` iteratee shorthand.
* _.filter(users, ['active', false]);
* // => objects for ['fred']
*
* // The `_.property` iteratee shorthand.
* _.filter(users, 'active');
* // => objects for ['barney']
*/
function filter(collection, predicate) {
var func = isArray(collection) ? arrayFilter : baseFilter;
return func(collection, getIteratee(predicate, 3));
}
/**
* Iterates over elements of `collection`, returning the first element
* `predicate` returns truthy for. The predicate is invoked with three
* arguments: (value, index|key, collection).
*
* @static
* @memberOf _
* @since 0.1.0
* @category Collection
* @param {Array|Object} collection The collection to search.
* @param {Array|Function|Object|string} [predicate=_.identity]
* The function invoked per iteration.
* @param {number} [fromIndex=0] The index to search from.
* @returns {*} Returns the matched element, else `undefined`.
* @example
*
* var users = [
* { 'user': 'barney', 'age': 36, 'active': true },
* { 'user': 'fred', 'age': 40, 'active': false },
* { 'user': 'pebbles', 'age': 1, 'active': true }
* ];
*
* _.find(users, function(o) { return o.age < 40; });
* // => object for 'barney'
*
* // The `_.matches` iteratee shorthand.
* _.find(users, { 'age': 1, 'active': true });
* // => object for 'pebbles'
*
* // The `_.matchesProperty` iteratee shorthand.
* _.find(users, ['active', false]);
* // => object for 'fred'
*
* // The `_.property` iteratee shorthand.
* _.find(users, 'active');
* // => object for 'barney'
*/
var find = createFind(findIndex);
/**
* This method is like `_.find` except that it iterates over elements of
* `collection` from right to left.
*
* @static
* @memberOf _
* @since 2.0.0
* @category Collection
* @param {Array|Object} collection The collection to search.
* @param {Array|Function|Object|string} [predicate=_.identity]
* The function invoked per iteration.
* @param {number} [fromIndex=collection.length-1] The index to search from.
* @returns {*} Returns the matched element, else `undefined`.
* @example
*
* _.findLast([1, 2, 3, 4], function(n) {
* return n % 2 == 1;
* });
* // => 3
*/
var findLast = createFind(findLastIndex);
/**
* Creates a flattened array of values by running each element in `collection`
* thru `iteratee` and flattening the mapped results. The iteratee is invoked
* with three arguments: (value, index|key, collection).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Collection
* @param {Array|Object} collection The collection to iterate over.
* @param {Array|Function|Object|string} [iteratee=_.identity]
* The function invoked per iteration.
* @returns {Array} Returns the new flattened array.
* @example
*
* function duplicate(n) {
* return [n, n];
* }
*
* _.flatMap([1, 2], duplicate);
* // => [1, 1, 2, 2]
*/
function flatMap(collection, iteratee) {
return baseFlatten(map(collection, iteratee), 1);
}
/**
* This method is like `_.flatMap` except that it recursively flattens the
* mapped results.
*
* @static
* @memberOf _
* @since 4.7.0
* @category Collection
* @param {Array|Object} collection The collection to iterate over.
* @param {Array|Function|Object|string} [iteratee=_.identity]
* The function invoked per iteration.
* @returns {Array} Returns the new flattened array.
* @example
*
* function duplicate(n) {
* return [[[n, n]]];
* }
*
* _.flatMapDeep([1, 2], duplicate);
* // => [1, 1, 2, 2]
*/
function flatMapDeep(collection, iteratee) {
return baseFlatten(map(collection, iteratee), INFINITY);
}
/**
* This method is like `_.flatMap` except that it recursively flattens the
* mapped results up to `depth` times.
*
* @static
* @memberOf _
* @since 4.7.0
* @category Collection
* @param {Array|Object} collection The collection to iterate over.
* @param {Array|Function|Object|string} [iteratee=_.identity]
* The function invoked per iteration.
* @param {number} [depth=1] The maximum recursion depth.
* @returns {Array} Returns the new flattened array.
* @example
*
* function duplicate(n) {
* return [[[n, n]]];
* }
*
* _.flatMapDepth([1, 2], duplicate, 2);
* // => [[1, 1], [2, 2]]
*/
function flatMapDepth(collection, iteratee, depth) {
depth = depth === undefined ? 1 : toInteger(depth);
return baseFlatten(map(collection, iteratee), depth);
}
/**
* Iterates over elements of `collection` and invokes `iteratee` for each element.
* The iteratee is invoked with three arguments: (value, index|key, collection).
* Iteratee functions may exit iteration early by explicitly returning `false`.
*
* **Note:** As with other "Collections" methods, objects with a "length"
* property are iterated like arrays. To avoid this behavior use `_.forIn`
* or `_.forOwn` for object iteration.
*
* @static
* @memberOf _
* @since 0.1.0
* @alias each
* @category Collection
* @param {Array|Object} collection The collection to iterate over.
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
* @returns {Array|Object} Returns `collection`.
* @see _.forEachRight
* @example
*
* _([1, 2]).forEach(function(value) {
* console.log(value);
* });
* // => Logs `1` then `2`.
*
* _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {
* console.log(key);
* });
* // => Logs 'a' then 'b' (iteration order is not guaranteed).
*/
function forEach(collection, iteratee) {
var func = isArray(collection) ? arrayEach : baseEach;
return func(collection, getIteratee(iteratee, 3));
}
/**
* This method is like `_.forEach` except that it iterates over elements of
* `collection` from right to left.
*
* @static
* @memberOf _
* @since 2.0.0
* @alias eachRight
* @category Collection
* @param {Array|Object} collection The collection to iterate over.
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
* @returns {Array|Object} Returns `collection`.
* @see _.forEach
* @example
*
* _.forEachRight([1, 2], function(value) {
* console.log(value);
* });
* // => Logs `2` then `1`.
*/
function forEachRight(collection, iteratee) {
var func = isArray(collection) ? arrayEachRight : baseEachRight;
return func(collection, getIteratee(iteratee, 3));
}
/**
* Creates an object composed of keys generated from the results of running
* each element of `collection` thru `iteratee`. The order of grouped values
* is determined by the order they occur in `collection`. The corresponding
* value of each key is an array of elements responsible for generating the
* key. The iteratee is invoked with one argument: (value).
*
* @static
* @memberOf _
* @since 0.1.0
* @category Collection
* @param {Array|Object} collection The collection to iterate over.
* @param {Array|Function|Object|string} [iteratee=_.identity]
* The iteratee to transform keys.
* @returns {Object} Returns the composed aggregate object.
* @example
*
* _.groupBy([6.1, 4.2, 6.3], Math.floor);
* // => { '4': [4.2], '6': [6.1, 6.3] }
*
* // The `_.property` iteratee shorthand.
* _.groupBy(['one', 'two', 'three'], 'length');
* // => { '3': ['one', 'two'], '5': ['three'] }
*/
var groupBy = createAggregator(function(result, value, key) {
if (hasOwnProperty.call(result, key)) {
result[key].push(value);
} else {
result[key] = [value];
}
});
/**
* Checks if `value` is in `collection`. If `collection` is a string, it's
* checked for a substring of `value`, otherwise
* [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
* is used for equality comparisons. If `fromIndex` is negative, it's used as
* the offset from the end of `collection`.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Collection
* @param {Array|Object|string} collection The collection to search.
* @param {*} value The value to search for.
* @param {number} [fromIndex=0] The index to search from.
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
* @returns {boolean} Returns `true` if `value` is found, else `false`.
* @example
*
* _.includes([1, 2, 3], 1);
* // => true
*
* _.includes([1, 2, 3], 1, 2);
* // => false
*
* _.includes({ 'user': 'fred', 'age': 40 }, 'fred');
* // => true
*
* _.includes('pebbles', 'eb');
* // => true
*/
function includes(collection, value, fromIndex, guard) {
collection = isArrayLike(collection) ? collection : values(collection);
fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0;
var length = collection.length;
if (fromIndex < 0) {
fromIndex = nativeMax(length + fromIndex, 0);
}
return isString(collection)
? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1)
: (!!length && baseIndexOf(collection, value, fromIndex) > -1);
}
/**
* Invokes the method at `path` of each element in `collection`, returning
* an array of the results of each invoked method. Any additional arguments
* are provided to each invoked method. If `methodName` is a function, it's
* invoked for and `this` bound to, each element in `collection`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Collection
* @param {Array|Object} collection The collection to iterate over.
* @param {Array|Function|string} path The path of the method to invoke or
* the function invoked per iteration.
* @param {...*} [args] The arguments to invoke each method with.
* @returns {Array} Returns the array of results.
* @example
*
* _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');
* // => [[1, 5, 7], [1, 2, 3]]
*
* _.invokeMap([123, 456], String.prototype.split, '');
* // => [['1', '2', '3'], ['4', '5', '6']]
*/
var invokeMap = rest(function(collection, path, args) {
var index = -1,
isFunc = typeof path == 'function',
isProp = isKey(path),
result = isArrayLike(collection) ? Array(collection.length) : [];
baseEach(collection, function(value) {
var func = isFunc ? path : ((isProp && value != null) ? value[path] : undefined);
result[++index] = func ? apply(func, value, args) : baseInvoke(value, path, args);
});
return result;
});
/**
* Creates an object composed of keys generated from the results of running
* each element of `collection` thru `iteratee`. The corresponding value of
* each key is the last element responsible for generating the key. The
* iteratee is invoked with one argument: (value).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Collection
* @param {Array|Object} collection The collection to iterate over.
* @param {Array|Function|Object|string} [iteratee=_.identity]
* The iteratee to transform keys.
* @returns {Object} Returns the composed aggregate object.
* @example
*
* var array = [
* { 'dir': 'left', 'code': 97 },
* { 'dir': 'right', 'code': 100 }
* ];
*
* _.keyBy(array, function(o) {
* return String.fromCharCode(o.code);
* });
* // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
*
* _.keyBy(array, 'dir');
* // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }
*/
var keyBy = createAggregator(function(result, value, key) {
result[key] = value;
});
/**
* Creates an array of values by running each element in `collection` thru
* `iteratee`. The iteratee is invoked with three arguments:
* (value, index|key, collection).
*
* Many lodash methods are guarded to work as iteratees for methods like
* `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
*
* The guarded methods are:
* `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,
* `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,
* `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,
* `template`, `trim`, `trimEnd`, `trimStart`, and `words`
*
* @static
* @memberOf _
* @since 0.1.0
* @category Collection
* @param {Array|Object} collection The collection to iterate over.
* @param {Array|Function|Object|string} [iteratee=_.identity]
* The function invoked per iteration.
* @returns {Array} Returns the new mapped array.
* @example
*
* function square(n) {
* return n * n;
* }
*
* _.map([4, 8], square);
* // => [16, 64]
*
* _.map({ 'a': 4, 'b': 8 }, square);
* // => [16, 64] (iteration order is not guaranteed)
*
* var users = [
* { 'user': 'barney' },
* { 'user': 'fred' }
* ];
*
* // The `_.property` iteratee shorthand.
* _.map(users, 'user');
* // => ['barney', 'fred']
*/
function map(collection, iteratee) {
var func = isArray(collection) ? arrayMap : baseMap;
return func(collection, getIteratee(iteratee, 3));
}
/**
* This method is like `_.sortBy` except that it allows specifying the sort
* orders of the iteratees to sort by. If `orders` is unspecified, all values
* are sorted in ascending order. Otherwise, specify an order of "desc" for
* descending or "asc" for ascending sort order of corresponding values.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Collection
* @param {Array|Object} collection The collection to iterate over.
* @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]]
* The iteratees to sort by.
* @param {string[]} [orders] The sort orders of `iteratees`.
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
* @returns {Array} Returns the new sorted array.
* @example
*
* var users = [
* { 'user': 'fred', 'age': 48 },
* { 'user': 'barney', 'age': 34 },
* { 'user': 'fred', 'age': 40 },
* { 'user': 'barney', 'age': 36 }
* ];
*
* // Sort by `user` in ascending order and by `age` in descending order.
* _.orderBy(users, ['user', 'age'], ['asc', 'desc']);
* // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]
*/
function orderBy(collection, iteratees, orders, guard) {
if (collection == null) {
return [];
}
if (!isArray(iteratees)) {
iteratees = iteratees == null ? [] : [iteratees];
}
orders = guard ? undefined : orders;
if (!isArray(orders)) {
orders = orders == null ? [] : [orders];
}
return baseOrderBy(collection, iteratees, orders);
}
/**
* Creates an array of elements split into two groups, the first of which
* contains elements `predicate` returns truthy for, the second of which
* contains elements `predicate` returns falsey for. The predicate is
* invoked with one argument: (value).
*
* @static
* @memberOf _
* @since 3.0.0
* @category Collection
* @param {Array|Object} collection The collection to iterate over.
* @param {Array|Function|Object|string} [predicate=_.identity]
* The function invoked per iteration.
* @returns {Array} Returns the array of grouped elements.
* @example
*
* var users = [
* { 'user': 'barney', 'age': 36, 'active': false },
* { 'user': 'fred', 'age': 40, 'active': true },
* { 'user': 'pebbles', 'age': 1, 'active': false }
* ];
*
* _.partition(users, function(o) { return o.active; });
* // => objects for [['fred'], ['barney', 'pebbles']]
*
* // The `_.matches` iteratee shorthand.
* _.partition(users, { 'age': 1, 'active': false });
* // => objects for [['pebbles'], ['barney', 'fred']]
*
* // The `_.matchesProperty` iteratee shorthand.
* _.partition(users, ['active', false]);
* // => objects for [['barney', 'pebbles'], ['fred']]
*
* // The `_.property` iteratee shorthand.
* _.partition(users, 'active');
* // => objects for [['fred'], ['barney', 'pebbles']]
*/
var partition = createAggregator(function(result, value, key) {
result[key ? 0 : 1].push(value);
}, function() { return [[], []]; });
/**
* Reduces `collection` to a value which is the accumulated result of running
* each element in `collection` thru `iteratee`, where each successive
* invocation is supplied the return value of the previous. If `accumulator`
* is not given, the first element of `collection` is used as the initial
* value. The iteratee is invoked with four arguments:
* (accumulator, value, index|key, collection).
*
* Many lodash methods are guarded to work as iteratees for methods like
* `_.reduce`, `_.reduceRight`, and `_.transform`.
*
* The guarded methods are:
* `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,
* and `sortBy`
*
* @static
* @memberOf _
* @since 0.1.0
* @category Collection
* @param {Array|Object} collection The collection to iterate over.
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
* @param {*} [accumulator] The initial value.
* @returns {*} Returns the accumulated value.
* @see _.reduceRight
* @example
*
* _.reduce([1, 2], function(sum, n) {
* return sum + n;
* }, 0);
* // => 3
*
* _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
* (result[value] || (result[value] = [])).push(key);
* return result;
* }, {});
* // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)
*/
function reduce(collection, iteratee, accumulator) {
var func = isArray(collection) ? arrayReduce : baseReduce,
initAccum = arguments.length < 3;
return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach);
}
/**
* This method is like `_.reduce` except that it iterates over elements of
* `collection` from right to left.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Collection
* @param {Array|Object} collection The collection to iterate over.
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
* @param {*} [accumulator] The initial value.
* @returns {*} Returns the accumulated value.
* @see _.reduce
* @example
*
* var array = [[0, 1], [2, 3], [4, 5]];
*
* _.reduceRight(array, function(flattened, other) {
* return flattened.concat(other);
* }, []);
* // => [4, 5, 2, 3, 0, 1]
*/
function reduceRight(collection, iteratee, accumulator) {
var func = isArray(collection) ? arrayReduceRight : baseReduce,
initAccum = arguments.length < 3;
return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight);
}
/**
* The opposite of `_.filter`; this method returns the elements of `collection`
* that `predicate` does **not** return truthy for.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Collection
* @param {Array|Object} collection The collection to iterate over.
* @param {Array|Function|Object|string} [predicate=_.identity]
* The function invoked per iteration.
* @returns {Array} Returns the new filtered array.
* @see _.filter
* @example
*
* var users = [
* { 'user': 'barney', 'age': 36, 'active': false },
* { 'user': 'fred', 'age': 40, 'active': true }
* ];
*
* _.reject(users, function(o) { return !o.active; });
* // => objects for ['fred']
*
* // The `_.matches` iteratee shorthand.
* _.reject(users, { 'age': 40, 'active': true });
* // => objects for ['barney']
*
* // The `_.matchesProperty` iteratee shorthand.
* _.reject(users, ['active', false]);
* // => objects for ['fred']
*
* // The `_.property` iteratee shorthand.
* _.reject(users, 'active');
* // => objects for ['barney']
*/
function reject(collection, predicate) {
var func = isArray(collection) ? arrayFilter : baseFilter;
predicate = getIteratee(predicate, 3);
return func(collection, function(value, index, collection) {
return !predicate(value, index, collection);
});
}
/**
* Gets a random element from `collection`.
*
* @static
* @memberOf _
* @since 2.0.0
* @category Collection
* @param {Array|Object} collection The collection to sample.
* @returns {*} Returns the random element.
* @example
*
* _.sample([1, 2, 3, 4]);
* // => 2
*/
function sample(collection) {
var array = isArrayLike(collection) ? collection : values(collection),
length = array.length;
return length > 0 ? array[baseRandom(0, length - 1)] : undefined;
}
/**
* Gets `n` random elements at unique keys from `collection` up to the
* size of `collection`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Collection
* @param {Array|Object} collection The collection to sample.
* @param {number} [n=1] The number of elements to sample.
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
* @returns {Array} Returns the random elements.
* @example
*
* _.sampleSize([1, 2, 3], 2);
* // => [3, 1]
*
* _.sampleSize([1, 2, 3], 4);
* // => [2, 3, 1]
*/
function sampleSize(collection, n, guard) {
var index = -1,
result = toArray(collection),
length = result.length,
lastIndex = length - 1;
if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) {
n = 1;
} else {
n = baseClamp(toInteger(n), 0, length);
}
while (++index < n) {
var rand = baseRandom(index, lastIndex),
value = result[rand];
result[rand] = result[index];
result[index] = value;
}
result.length = n;
return result;
}
/**
* Creates an array of shuffled values, using a version of the
* [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).
*
* @static
* @memberOf _
* @since 0.1.0
* @category Collection
* @param {Array|Object} collection The collection to shuffle.
* @returns {Array} Returns the new shuffled array.
* @example
*
* _.shuffle([1, 2, 3, 4]);
* // => [4, 1, 3, 2]
*/
function shuffle(collection) {
return sampleSize(collection, MAX_ARRAY_LENGTH);
}
/**
* Gets the size of `collection` by returning its length for array-like
* values or the number of own enumerable string keyed properties for objects.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Collection
* @param {Array|Object} collection The collection to inspect.
* @returns {number} Returns the collection size.
* @example
*
* _.size([1, 2, 3]);
* // => 3
*
* _.size({ 'a': 1, 'b': 2 });
* // => 2
*
* _.size('pebbles');
* // => 7
*/
function size(collection) {
if (collection == null) {
return 0;
}
if (isArrayLike(collection)) {
var result = collection.length;
return (result && isString(collection)) ? stringSize(collection) : result;
}
if (isObjectLike(collection)) {
var tag = getTag(collection);
if (tag == mapTag || tag == setTag) {
return collection.size;
}
}
return keys(collection).length;
}
/**
* Checks if `predicate` returns truthy for **any** element of `collection`.
* Iteration is stopped once `predicate` returns truthy. The predicate is
* invoked with three arguments: (value, index|key, collection).
*
* @static
* @memberOf _
* @since 0.1.0
* @category Collection
* @param {Array|Object} collection The collection to iterate over.
* @param {Array|Function|Object|string} [predicate=_.identity]
* The function invoked per iteration.
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
* @returns {boolean} Returns `true` if any element passes the predicate check,
* else `false`.
* @example
*
* _.some([null, 0, 'yes', false], Boolean);
* // => true
*
* var users = [
* { 'user': 'barney', 'active': true },
* { 'user': 'fred', 'active': false }
* ];
*
* // The `_.matches` iteratee shorthand.
* _.some(users, { 'user': 'barney', 'active': false });
* // => false
*
* // The `_.matchesProperty` iteratee shorthand.
* _.some(users, ['active', false]);
* // => true
*
* // The `_.property` iteratee shorthand.
* _.some(users, 'active');
* // => true
*/
function some(collection, predicate, guard) {
var func = isArray(collection) ? arraySome : baseSome;
if (guard && isIterateeCall(collection, predicate, guard)) {
predicate = undefined;
}
return func(collection, getIteratee(predicate, 3));
}
/**
* Creates an array of elements, sorted in ascending order by the results of
* running each element in a collection thru each iteratee. This method
* performs a stable sort, that is, it preserves the original sort order of
* equal elements. The iteratees are invoked with one argument: (value).
*
* @static
* @memberOf _
* @since 0.1.0
* @category Collection
* @param {Array|Object} collection The collection to iterate over.
* @param {...(Array|Array[]|Function|Function[]|Object|Object[]|string|string[])}
* [iteratees=[_.identity]] The iteratees to sort by.
* @returns {Array} Returns the new sorted array.
* @example
*
* var users = [
* { 'user': 'fred', 'age': 48 },
* { 'user': 'barney', 'age': 36 },
* { 'user': 'fred', 'age': 40 },
* { 'user': 'barney', 'age': 34 }
* ];
*
* _.sortBy(users, function(o) { return o.user; });
* // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]
*
* _.sortBy(users, ['user', 'age']);
* // => objects for [['barney', 34], ['barney', 36], ['fred', 40], ['fred', 48]]
*
* _.sortBy(users, 'user', function(o) {
* return Math.floor(o.age / 10);
* });
* // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]
*/
var sortBy = rest(function(collection, iteratees) {
if (collection == null) {
return [];
}
var length = iteratees.length;
if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {
iteratees = [];
} else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {
iteratees = [iteratees[0]];
}
iteratees = (iteratees.length == 1 && isArray(iteratees[0]))
? iteratees[0]
: baseFlatten(iteratees, 1, isFlattenableIteratee);
return baseOrderBy(collection, iteratees, []);
});
/*------------------------------------------------------------------------*/
/**
* Gets the timestamp of the number of milliseconds that have elapsed since
* the Unix epoch (1 January 1970 00:00:00 UTC).
*
* @static
* @memberOf _
* @since 2.4.0
* @category Date
* @returns {number} Returns the timestamp.
* @example
*
* _.defer(function(stamp) {
* console.log(_.now() - stamp);
* }, _.now());
* // => Logs the number of milliseconds it took for the deferred invocation.
*/
function now() {
return Date.now();
}
/*------------------------------------------------------------------------*/
/**
* The opposite of `_.before`; this method creates a function that invokes
* `func` once it's called `n` or more times.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Function
* @param {number} n The number of calls before `func` is invoked.
* @param {Function} func The function to restrict.
* @returns {Function} Returns the new restricted function.
* @example
*
* var saves = ['profile', 'settings'];
*
* var done = _.after(saves.length, function() {
* console.log('done saving!');
* });
*
* _.forEach(saves, function(type) {
* asyncSave({ 'type': type, 'complete': done });
* });
* // => Logs 'done saving!' after the two async saves have completed.
*/
function after(n, func) {
if (typeof func != 'function') {
throw new TypeError(FUNC_ERROR_TEXT);
}
n = toInteger(n);
return function() {
if (--n < 1) {
return func.apply(this, arguments);
}
};
}
/**
* Creates a function that invokes `func`, with up to `n` arguments,
* ignoring any additional arguments.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Function
* @param {Function} func The function to cap arguments for.
* @param {number} [n=func.length] The arity cap.
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
* @returns {Function} Returns the new capped function.
* @example
*
* _.map(['6', '8', '10'], _.ary(parseInt, 1));
* // => [6, 8, 10]
*/
function ary(func, n, guard) {
n = guard ? undefined : n;
n = (func && n == null) ? func.length : n;
return createWrapper(func, ARY_FLAG, undefined, undefined, undefined, undefined, n);
}
/**
* Creates a function that invokes `func`, with the `this` binding and arguments
* of the created function, while it's called less than `n` times. Subsequent
* calls to the created function return the result of the last `func` invocation.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Function
* @param {number} n The number of calls at which `func` is no longer invoked.
* @param {Function} func The function to restrict.
* @returns {Function} Returns the new restricted function.
* @example
*
* jQuery(element).on('click', _.before(5, addContactToList));
* // => allows adding up to 4 contacts to the list
*/
function before(n, func) {
var result;
if (typeof func != 'function') {
throw new TypeError(FUNC_ERROR_TEXT);
}
n = toInteger(n);
return function() {
if (--n > 0) {
result = func.apply(this, arguments);
}
if (n <= 1) {
func = undefined;
}
return result;
};
}
/**
* Creates a function that invokes `func` with the `this` binding of `thisArg`
* and `partials` prepended to the arguments it receives.
*
* The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,
* may be used as a placeholder for partially applied arguments.
*
* **Note:** Unlike native `Function#bind`, this method doesn't set the "length"
* property of bound functions.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Function
* @param {Function} func The function to bind.
* @param {*} thisArg The `this` binding of `func`.
* @param {...*} [partials] The arguments to be partially applied.
* @returns {Function} Returns the new bound function.
* @example
*
* var greet = function(greeting, punctuation) {
* return greeting + ' ' + this.user + punctuation;
* };
*
* var object = { 'user': 'fred' };
*
* var bound = _.bind(greet, object, 'hi');
* bound('!');
* // => 'hi fred!'
*
* // Bound with placeholders.
* var bound = _.bind(greet, object, _, '!');
* bound('hi');
* // => 'hi fred!'
*/
var bind = rest(function(func, thisArg, partials) {
var bitmask = BIND_FLAG;
if (partials.length) {
var holders = replaceHolders(partials, getHolder(bind));
bitmask |= PARTIAL_FLAG;
}
return createWrapper(func, bitmask, thisArg, partials, holders);
});
/**
* Creates a function that invokes the method at `object[key]` with `partials`
* prepended to the arguments it receives.
*
* This method differs from `_.bind` by allowing bound functions to reference
* methods that may be redefined or don't yet exist. See
* [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)
* for more details.
*
* The `_.bindKey.placeholder` value, which defaults to `_` in monolithic
* builds, may be used as a placeholder for partially applied arguments.
*
* @static
* @memberOf _
* @since 0.10.0
* @category Function
* @param {Object} object The object to invoke the method on.
* @param {string} key The key of the method.
* @param {...*} [partials] The arguments to be partially applied.
* @returns {Function} Returns the new bound function.
* @example
*
* var object = {
* 'user': 'fred',
* 'greet': function(greeting, punctuation) {
* return greeting + ' ' + this.user + punctuation;
* }
* };
*
* var bound = _.bindKey(object, 'greet', 'hi');
* bound('!');
* // => 'hi fred!'
*
* object.greet = function(greeting, punctuation) {
* return greeting + 'ya ' + this.user + punctuation;
* };
*
* bound('!');
* // => 'hiya fred!'
*
* // Bound with placeholders.
* var bound = _.bindKey(object, 'greet', _, '!');
* bound('hi');
* // => 'hiya fred!'
*/
var bindKey = rest(function(object, key, partials) {
var bitmask = BIND_FLAG | BIND_KEY_FLAG;
if (partials.length) {
var holders = replaceHolders(partials, getHolder(bindKey));
bitmask |= PARTIAL_FLAG;
}
return createWrapper(key, bitmask, object, partials, holders);
});
/**
* Creates a function that accepts arguments of `func` and either invokes
* `func` returning its result, if at least `arity` number of arguments have
* been provided, or returns a function that accepts the remaining `func`
* arguments, and so on. The arity of `func` may be specified if `func.length`
* is not sufficient.
*
* The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,
* may be used as a placeholder for provided arguments.
*
* **Note:** This method doesn't set the "length" property of curried functions.
*
* @static
* @memberOf _
* @since 2.0.0
* @category Function
* @param {Function} func The function to curry.
* @param {number} [arity=func.length] The arity of `func`.
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
* @returns {Function} Returns the new curried function.
* @example
*
* var abc = function(a, b, c) {
* return [a, b, c];
* };
*
* var curried = _.curry(abc);
*
* curried(1)(2)(3);
* // => [1, 2, 3]
*
* curried(1, 2)(3);
* // => [1, 2, 3]
*
* curried(1, 2, 3);
* // => [1, 2, 3]
*
* // Curried with placeholders.
* curried(1)(_, 3)(2);
* // => [1, 2, 3]
*/
function curry(func, arity, guard) {
arity = guard ? undefined : arity;
var result = createWrapper(func, CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity);
result.placeholder = curry.placeholder;
return result;
}
/**
* This method is like `_.curry` except that arguments are applied to `func`
* in the manner of `_.partialRight` instead of `_.partial`.
*
* The `_.curryRight.placeholder` value, which defaults to `_` in monolithic
* builds, may be used as a placeholder for provided arguments.
*
* **Note:** This method doesn't set the "length" property of curried functions.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Function
* @param {Function} func The function to curry.
* @param {number} [arity=func.length] The arity of `func`.
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
* @returns {Function} Returns the new curried function.
* @example
*
* var abc = function(a, b, c) {
* return [a, b, c];
* };
*
* var curried = _.curryRight(abc);
*
* curried(3)(2)(1);
* // => [1, 2, 3]
*
* curried(2, 3)(1);
* // => [1, 2, 3]
*
* curried(1, 2, 3);
* // => [1, 2, 3]
*
* // Curried with placeholders.
* curried(3)(1, _)(2);
* // => [1, 2, 3]
*/
function curryRight(func, arity, guard) {
arity = guard ? undefined : arity;
var result = createWrapper(func, CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity);
result.placeholder = curryRight.placeholder;
return result;
}
/**
* Creates a debounced function that delays invoking `func` until after `wait`
* milliseconds have elapsed since the last time the debounced function was
* invoked. The debounced function comes with a `cancel` method to cancel
* delayed `func` invocations and a `flush` method to immediately invoke them.
* Provide an options object to indicate whether `func` should be invoked on
* the leading and/or trailing edge of the `wait` timeout. The `func` is invoked
* with the last arguments provided to the debounced function. Subsequent calls
* to the debounced function return the result of the last `func` invocation.
*
* **Note:** If `leading` and `trailing` options are `true`, `func` is invoked
* on the trailing edge of the timeout only if the debounced function is
* invoked more than once during the `wait` timeout.
*
* See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
* for details over the differences between `_.debounce` and `_.throttle`.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Function
* @param {Function} func The function to debounce.
* @param {number} [wait=0] The number of milliseconds to delay.
* @param {Object} [options={}] The options object.
* @param {boolean} [options.leading=false]
* Specify invoking on the leading edge of the timeout.
* @param {number} [options.maxWait]
* The maximum time `func` is allowed to be delayed before it's invoked.
* @param {boolean} [options.trailing=true]
* Specify invoking on the trailing edge of the timeout.
* @returns {Function} Returns the new debounced function.
* @example
*
* // Avoid costly calculations while the window size is in flux.
* jQuery(window).on('resize', _.debounce(calculateLayout, 150));
*
* // Invoke `sendMail` when clicked, debouncing subsequent calls.
* jQuery(element).on('click', _.debounce(sendMail, 300, {
* 'leading': true,
* 'trailing': false
* }));
*
* // Ensure `batchLog` is invoked once after 1 second of debounced calls.
* var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });
* var source = new EventSource('/stream');
* jQuery(source).on('message', debounced);
*
* // Cancel the trailing debounced invocation.
* jQuery(window).on('popstate', debounced.cancel);
*/
function debounce(func, wait, options) {
var lastArgs,
lastThis,
maxWait,
result,
timerId,
lastCallTime,
lastInvokeTime = 0,
leading = false,
maxing = false,
trailing = true;
if (typeof func != 'function') {
throw new TypeError(FUNC_ERROR_TEXT);
}
wait = toNumber(wait) || 0;
if (isObject(options)) {
leading = !!options.leading;
maxing = 'maxWait' in options;
maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;
trailing = 'trailing' in options ? !!options.trailing : trailing;
}
function invokeFunc(time) {
var args = lastArgs,
thisArg = lastThis;
lastArgs = lastThis = undefined;
lastInvokeTime = time;
result = func.apply(thisArg, args);
return result;
}
function leadingEdge(time) {
// Reset any `maxWait` timer.
lastInvokeTime = time;
// Start the timer for the trailing edge.
timerId = setTimeout(timerExpired, wait);
// Invoke the leading edge.
return leading ? invokeFunc(time) : result;
}
function remainingWait(time) {
var timeSinceLastCall = time - lastCallTime,
timeSinceLastInvoke = time - lastInvokeTime,
result = wait - timeSinceLastCall;
return maxing ? nativeMin(result, maxWait - timeSinceLastInvoke) : result;
}
function shouldInvoke(time) {
var timeSinceLastCall = time - lastCallTime,
timeSinceLastInvoke = time - lastInvokeTime;
// Either this is the first call, activity has stopped and we're at the
// trailing edge, the system time has gone backwards and we're treating
// it as the trailing edge, or we've hit the `maxWait` limit.
return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||
(timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));
}
function timerExpired() {
var time = now();
if (shouldInvoke(time)) {
return trailingEdge(time);
}
// Restart the timer.
timerId = setTimeout(timerExpired, remainingWait(time));
}
function trailingEdge(time) {
timerId = undefined;
// Only invoke if we have `lastArgs` which means `func` has been
// debounced at least once.
if (trailing && lastArgs) {
return invokeFunc(time);
}
lastArgs = lastThis = undefined;
return result;
}
function cancel() {
lastInvokeTime = 0;
lastArgs = lastCallTime = lastThis = timerId = undefined;
}
function flush() {
return timerId === undefined ? result : trailingEdge(now());
}
function debounced() {
var time = now(),
isInvoking = shouldInvoke(time);
lastArgs = arguments;
lastThis = this;
lastCallTime = time;
if (isInvoking) {
if (timerId === undefined) {
return leadingEdge(lastCallTime);
}
if (maxing) {
// Handle invocations in a tight loop.
timerId = setTimeout(timerExpired, wait);
return invokeFunc(lastCallTime);
}
}
if (timerId === undefined) {
timerId = setTimeout(timerExpired, wait);
}
return result;
}
debounced.cancel = cancel;
debounced.flush = flush;
return debounced;
}
/**
* Defers invoking the `func` until the current call stack has cleared. Any
* additional arguments are provided to `func` when it's invoked.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Function
* @param {Function} func The function to defer.
* @param {...*} [args] The arguments to invoke `func` with.
* @returns {number} Returns the timer id.
* @example
*
* _.defer(function(text) {
* console.log(text);
* }, 'deferred');
* // => Logs 'deferred' after one or more milliseconds.
*/
var defer = rest(function(func, args) {
return baseDelay(func, 1, args);
});
/**
* Invokes `func` after `wait` milliseconds. Any additional arguments are
* provided to `func` when it's invoked.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Function
* @param {Function} func The function to delay.
* @param {number} wait The number of milliseconds to delay invocation.
* @param {...*} [args] The arguments to invoke `func` with.
* @returns {number} Returns the timer id.
* @example
*
* _.delay(function(text) {
* console.log(text);
* }, 1000, 'later');
* // => Logs 'later' after one second.
*/
var delay = rest(function(func, wait, args) {
return baseDelay(func, toNumber(wait) || 0, args);
});
/**
* Creates a function that invokes `func` with arguments reversed.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Function
* @param {Function} func The function to flip arguments for.
* @returns {Function} Returns the new flipped function.
* @example
*
* var flipped = _.flip(function() {
* return _.toArray(arguments);
* });
*
* flipped('a', 'b', 'c', 'd');
* // => ['d', 'c', 'b', 'a']
*/
function flip(func) {
return createWrapper(func, FLIP_FLAG);
}
/**
* Creates a function that memoizes the result of `func`. If `resolver` is
* provided, it determines the cache key for storing the result based on the
* arguments provided to the memoized function. By default, the first argument
* provided to the memoized function is used as the map cache key. The `func`
* is invoked with the `this` binding of the memoized function.
*
* **Note:** The cache is exposed as the `cache` property on the memoized
* function. Its creation may be customized by replacing the `_.memoize.Cache`
* constructor with one whose instances implement the
* [`Map`](http://ecma-international.org/ecma-262/6.0/#sec-properties-of-the-map-prototype-object)
* method interface of `delete`, `get`, `has`, and `set`.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Function
* @param {Function} func The function to have its output memoized.
* @param {Function} [resolver] The function to resolve the cache key.
* @returns {Function} Returns the new memoized function.
* @example
*
* var object = { 'a': 1, 'b': 2 };
* var other = { 'c': 3, 'd': 4 };
*
* var values = _.memoize(_.values);
* values(object);
* // => [1, 2]
*
* values(other);
* // => [3, 4]
*
* object.a = 2;
* values(object);
* // => [1, 2]
*
* // Modify the result cache.
* values.cache.set(object, ['a', 'b']);
* values(object);
* // => ['a', 'b']
*
* // Replace `_.memoize.Cache`.
* _.memoize.Cache = WeakMap;
*/
function memoize(func, resolver) {
if (typeof func != 'function' || (resolver && typeof resolver != 'function')) {
throw new TypeError(FUNC_ERROR_TEXT);
}
var memoized = function() {
var args = arguments,
key = resolver ? resolver.apply(this, args) : args[0],
cache = memoized.cache;
if (cache.has(key)) {
return cache.get(key);
}
var result = func.apply(this, args);
memoized.cache = cache.set(key, result);
return result;
};
memoized.cache = new (memoize.Cache || MapCache);
return memoized;
}
// Assign cache to `_.memoize`.
memoize.Cache = MapCache;
/**
* Creates a function that negates the result of the predicate `func`. The
* `func` predicate is invoked with the `this` binding and arguments of the
* created function.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Function
* @param {Function} predicate The predicate to negate.
* @returns {Function} Returns the new negated function.
* @example
*
* function isEven(n) {
* return n % 2 == 0;
* }
*
* _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));
* // => [1, 3, 5]
*/
function negate(predicate) {
if (typeof predicate != 'function') {
throw new TypeError(FUNC_ERROR_TEXT);
}
return function() {
return !predicate.apply(this, arguments);
};
}
/**
* Creates a function that is restricted to invoking `func` once. Repeat calls
* to the function return the value of the first invocation. The `func` is
* invoked with the `this` binding and arguments of the created function.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Function
* @param {Function} func The function to restrict.
* @returns {Function} Returns the new restricted function.
* @example
*
* var initialize = _.once(createApplication);
* initialize();
* initialize();
* // `initialize` invokes `createApplication` once
*/
function once(func) {
return before(2, func);
}
/**
* Creates a function that invokes `func` with arguments transformed by
* corresponding `transforms`.
*
* @static
* @since 4.0.0
* @memberOf _
* @category Function
* @param {Function} func The function to wrap.
* @param {...(Array|Array[]|Function|Function[]|Object|Object[]|string|string[])}
* [transforms[_.identity]] The functions to transform.
* @returns {Function} Returns the new function.
* @example
*
* function doubled(n) {
* return n * 2;
* }
*
* function square(n) {
* return n * n;
* }
*
* var func = _.overArgs(function(x, y) {
* return [x, y];
* }, [square, doubled]);
*
* func(9, 3);
* // => [81, 6]
*
* func(10, 5);
* // => [100, 10]
*/
var overArgs = rest(function(func, transforms) {
transforms = (transforms.length == 1 && isArray(transforms[0]))
? arrayMap(transforms[0], baseUnary(getIteratee()))
: arrayMap(baseFlatten(transforms, 1, isFlattenableIteratee), baseUnary(getIteratee()));
var funcsLength = transforms.length;
return rest(function(args) {
var index = -1,
length = nativeMin(args.length, funcsLength);
while (++index < length) {
args[index] = transforms[index].call(this, args[index]);
}
return apply(func, this, args);
});
});
/**
* Creates a function that invokes `func` with `partials` prepended to the
* arguments it receives. This method is like `_.bind` except it does **not**
* alter the `this` binding.
*
* The `_.partial.placeholder` value, which defaults to `_` in monolithic
* builds, may be used as a placeholder for partially applied arguments.
*
* **Note:** This method doesn't set the "length" property of partially
* applied functions.
*
* @static
* @memberOf _
* @since 0.2.0
* @category Function
* @param {Function} func The function to partially apply arguments to.
* @param {...*} [partials] The arguments to be partially applied.
* @returns {Function} Returns the new partially applied function.
* @example
*
* var greet = function(greeting, name) {
* return greeting + ' ' + name;
* };
*
* var sayHelloTo = _.partial(greet, 'hello');
* sayHelloTo('fred');
* // => 'hello fred'
*
* // Partially applied with placeholders.
* var greetFred = _.partial(greet, _, 'fred');
* greetFred('hi');
* // => 'hi fred'
*/
var partial = rest(function(func, partials) {
var holders = replaceHolders(partials, getHolder(partial));
return createWrapper(func, PARTIAL_FLAG, undefined, partials, holders);
});
/**
* This method is like `_.partial` except that partially applied arguments
* are appended to the arguments it receives.
*
* The `_.partialRight.placeholder` value, which defaults to `_` in monolithic
* builds, may be used as a placeholder for partially applied arguments.
*
* **Note:** This method doesn't set the "length" property of partially
* applied functions.
*
* @static
* @memberOf _
* @since 1.0.0
* @category Function
* @param {Function} func The function to partially apply arguments to.
* @param {...*} [partials] The arguments to be partially applied.
* @returns {Function} Returns the new partially applied function.
* @example
*
* var greet = function(greeting, name) {
* return greeting + ' ' + name;
* };
*
* var greetFred = _.partialRight(greet, 'fred');
* greetFred('hi');
* // => 'hi fred'
*
* // Partially applied with placeholders.
* var sayHelloTo = _.partialRight(greet, 'hello', _);
* sayHelloTo('fred');
* // => 'hello fred'
*/
var partialRight = rest(function(func, partials) {
var holders = replaceHolders(partials, getHolder(partialRight));
return createWrapper(func, PARTIAL_RIGHT_FLAG, undefined, partials, holders);
});
/**
* Creates a function that invokes `func` with arguments arranged according
* to the specified `indexes` where the argument value at the first index is
* provided as the first argument, the argument value at the second index is
* provided as the second argument, and so on.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Function
* @param {Function} func The function to rearrange arguments for.
* @param {...(number|number[])} indexes The arranged argument indexes.
* @returns {Function} Returns the new function.
* @example
*
* var rearged = _.rearg(function(a, b, c) {
* return [a, b, c];
* }, [2, 0, 1]);
*
* rearged('b', 'c', 'a')
* // => ['a', 'b', 'c']
*/
var rearg = rest(function(func, indexes) {
return createWrapper(func, REARG_FLAG, undefined, undefined, undefined, baseFlatten(indexes, 1));
});
/**
* Creates a function that invokes `func` with the `this` binding of the
* created function and arguments from `start` and beyond provided as
* an array.
*
* **Note:** This method is based on the
* [rest parameter](https://mdn.io/rest_parameters).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Function
* @param {Function} func The function to apply a rest parameter to.
* @param {number} [start=func.length-1] The start position of the rest parameter.
* @returns {Function} Returns the new function.
* @example
*
* var say = _.rest(function(what, names) {
* return what + ' ' + _.initial(names).join(', ') +
* (_.size(names) > 1 ? ', & ' : '') + _.last(names);
* });
*
* say('hello', 'fred', 'barney', 'pebbles');
* // => 'hello fred, barney, & pebbles'
*/
function rest(func, start) {
if (typeof func != 'function') {
throw new TypeError(FUNC_ERROR_TEXT);
}
start = nativeMax(start === undefined ? (func.length - 1) : toInteger(start), 0);
return function() {
var args = arguments,
index = -1,
length = nativeMax(args.length - start, 0),
array = Array(length);
while (++index < length) {
array[index] = args[start + index];
}
switch (start) {
case 0: return func.call(this, array);
case 1: return func.call(this, args[0], array);
case 2: return func.call(this, args[0], args[1], array);
}
var otherArgs = Array(start + 1);
index = -1;
while (++index < start) {
otherArgs[index] = args[index];
}
otherArgs[start] = array;
return apply(func, this, otherArgs);
};
}
/**
* Creates a function that invokes `func` with the `this` binding of the
* create function and an array of arguments much like
* [`Function#apply`](http://www.ecma-international.org/ecma-262/6.0/#sec-function.prototype.apply).
*
* **Note:** This method is based on the
* [spread operator](https://mdn.io/spread_operator).
*
* @static
* @memberOf _
* @since 3.2.0
* @category Function
* @param {Function} func The function to spread arguments over.
* @param {number} [start=0] The start position of the spread.
* @returns {Function} Returns the new function.
* @example
*
* var say = _.spread(function(who, what) {
* return who + ' says ' + what;
* });
*
* say(['fred', 'hello']);
* // => 'fred says hello'
*
* var numbers = Promise.all([
* Promise.resolve(40),
* Promise.resolve(36)
* ]);
*
* numbers.then(_.spread(function(x, y) {
* return x + y;
* }));
* // => a Promise of 76
*/
function spread(func, start) {
if (typeof func != 'function') {
throw new TypeError(FUNC_ERROR_TEXT);
}
start = start === undefined ? 0 : nativeMax(toInteger(start), 0);
return rest(function(args) {
var array = args[start],
otherArgs = castSlice(args, 0, start);
if (array) {
arrayPush(otherArgs, array);
}
return apply(func, this, otherArgs);
});
}
/**
* Creates a throttled function that only invokes `func` at most once per
* every `wait` milliseconds. The throttled function comes with a `cancel`
* method to cancel delayed `func` invocations and a `flush` method to
* immediately invoke them. Provide an options object to indicate whether
* `func` should be invoked on the leading and/or trailing edge of the `wait`
* timeout. The `func` is invoked with the last arguments provided to the
* throttled function. Subsequent calls to the throttled function return the
* result of the last `func` invocation.
*
* **Note:** If `leading` and `trailing` options are `true`, `func` is
* invoked on the trailing edge of the timeout only if the throttled function
* is invoked more than once during the `wait` timeout.
*
* See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
* for details over the differences between `_.throttle` and `_.debounce`.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Function
* @param {Function} func The function to throttle.
* @param {number} [wait=0] The number of milliseconds to throttle invocations to.
* @param {Object} [options={}] The options object.
* @param {boolean} [options.leading=true]
* Specify invoking on the leading edge of the timeout.
* @param {boolean} [options.trailing=true]
* Specify invoking on the trailing edge of the timeout.
* @returns {Function} Returns the new throttled function.
* @example
*
* // Avoid excessively updating the position while scrolling.
* jQuery(window).on('scroll', _.throttle(updatePosition, 100));
*
* // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.
* var throttled = _.throttle(renewToken, 300000, { 'trailing': false });
* jQuery(element).on('click', throttled);
*
* // Cancel the trailing throttled invocation.
* jQuery(window).on('popstate', throttled.cancel);
*/
function throttle(func, wait, options) {
var leading = true,
trailing = true;
if (typeof func != 'function') {
throw new TypeError(FUNC_ERROR_TEXT);
}
if (isObject(options)) {
leading = 'leading' in options ? !!options.leading : leading;
trailing = 'trailing' in options ? !!options.trailing : trailing;
}
return debounce(func, wait, {
'leading': leading,
'maxWait': wait,
'trailing': trailing
});
}
/**
* Creates a function that accepts up to one argument, ignoring any
* additional arguments.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Function
* @param {Function} func The function to cap arguments for.
* @returns {Function} Returns the new capped function.
* @example
*
* _.map(['6', '8', '10'], _.unary(parseInt));
* // => [6, 8, 10]
*/
function unary(func) {
return ary(func, 1);
}
/**
* Creates a function that provides `value` to the wrapper function as its
* first argument. Any additional arguments provided to the function are
* appended to those provided to the wrapper function. The wrapper is invoked
* with the `this` binding of the created function.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Function
* @param {*} value The value to wrap.
* @param {Function} [wrapper=identity] The wrapper function.
* @returns {Function} Returns the new function.
* @example
*
* var p = _.wrap(_.escape, function(func, text) {
* return '<p>' + func(text) + '</p>';
* });
*
* p('fred, barney, & pebbles');
* // => '<p>fred, barney, & pebbles</p>'
*/
function wrap(value, wrapper) {
wrapper = wrapper == null ? identity : wrapper;
return partial(wrapper, value);
}
/*------------------------------------------------------------------------*/
/**
* Casts `value` as an array if it's not one.
*
* @static
* @memberOf _
* @since 4.4.0
* @category Lang
* @param {*} value The value to inspect.
* @returns {Array} Returns the cast array.
* @example
*
* _.castArray(1);
* // => [1]
*
* _.castArray({ 'a': 1 });
* // => [{ 'a': 1 }]
*
* _.castArray('abc');
* // => ['abc']
*
* _.castArray(null);
* // => [null]
*
* _.castArray(undefined);
* // => [undefined]
*
* _.castArray();
* // => []
*
* var array = [1, 2, 3];
* console.log(_.castArray(array) === array);
* // => true
*/
function castArray() {
if (!arguments.length) {
return [];
}
var value = arguments[0];
return isArray(value) ? value : [value];
}
/**
* Creates a shallow clone of `value`.
*
* **Note:** This method is loosely based on the
* [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)
* and supports cloning arrays, array buffers, booleans, date objects, maps,
* numbers, `Object` objects, regexes, sets, strings, symbols, and typed
* arrays. The own enumerable properties of `arguments` objects are cloned
* as plain objects. An empty object is returned for uncloneable values such
* as error objects, functions, DOM nodes, and WeakMaps.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Lang
* @param {*} value The value to clone.
* @returns {*} Returns the cloned value.
* @see _.cloneDeep
* @example
*
* var objects = [{ 'a': 1 }, { 'b': 2 }];
*
* var shallow = _.clone(objects);
* console.log(shallow[0] === objects[0]);
* // => true
*/
function clone(value) {
return baseClone(value, false, true);
}
/**
* This method is like `_.clone` except that it accepts `customizer` which
* is invoked to produce the cloned value. If `customizer` returns `undefined`,
* cloning is handled by the method instead. The `customizer` is invoked with
* up to four arguments; (value [, index|key, object, stack]).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to clone.
* @param {Function} [customizer] The function to customize cloning.
* @returns {*} Returns the cloned value.
* @see _.cloneDeepWith
* @example
*
* function customizer(value) {
* if (_.isElement(value)) {
* return value.cloneNode(false);
* }
* }
*
* var el = _.cloneWith(document.body, customizer);
*
* console.log(el === document.body);
* // => false
* console.log(el.nodeName);
* // => 'BODY'
* console.log(el.childNodes.length);
* // => 0
*/
function cloneWith(value, customizer) {
return baseClone(value, false, true, customizer);
}
/**
* This method is like `_.clone` except that it recursively clones `value`.
*
* @static
* @memberOf _
* @since 1.0.0
* @category Lang
* @param {*} value The value to recursively clone.
* @returns {*} Returns the deep cloned value.
* @see _.clone
* @example
*
* var objects = [{ 'a': 1 }, { 'b': 2 }];
*
* var deep = _.cloneDeep(objects);
* console.log(deep[0] === objects[0]);
* // => false
*/
function cloneDeep(value) {
return baseClone(value, true, true);
}
/**
* This method is like `_.cloneWith` except that it recursively clones `value`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to recursively clone.
* @param {Function} [customizer] The function to customize cloning.
* @returns {*} Returns the deep cloned value.
* @see _.cloneWith
* @example
*
* function customizer(value) {
* if (_.isElement(value)) {
* return value.cloneNode(true);
* }
* }
*
* var el = _.cloneDeepWith(document.body, customizer);
*
* console.log(el === document.body);
* // => false
* console.log(el.nodeName);
* // => 'BODY'
* console.log(el.childNodes.length);
* // => 20
*/
function cloneDeepWith(value, customizer) {
return baseClone(value, true, true, customizer);
}
/**
* Performs a
* [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero)
* comparison between two values to determine if they are equivalent.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to compare.
* @param {*} other The other value to compare.
* @returns {boolean} Returns `true` if the values are equivalent, else `false`.
* @example
*
* var object = { 'user': 'fred' };
* var other = { 'user': 'fred' };
*
* _.eq(object, object);
* // => true
*
* _.eq(object, other);
* // => false
*
* _.eq('a', 'a');
* // => true
*
* _.eq('a', Object('a'));
* // => false
*
* _.eq(NaN, NaN);
* // => true
*/
function eq(value, other) {
return value === other || (value !== value && other !== other);
}
/**
* Checks if `value` is greater than `other`.
*
* @static
* @memberOf _
* @since 3.9.0
* @category Lang
* @param {*} value The value to compare.
* @param {*} other The other value to compare.
* @returns {boolean} Returns `true` if `value` is greater than `other`,
* else `false`.
* @see _.lt
* @example
*
* _.gt(3, 1);
* // => true
*
* _.gt(3, 3);
* // => false
*
* _.gt(1, 3);
* // => false
*/
var gt = createRelationalOperation(baseGt);
/**
* Checks if `value` is greater than or equal to `other`.
*
* @static
* @memberOf _
* @since 3.9.0
* @category Lang
* @param {*} value The value to compare.
* @param {*} other The other value to compare.
* @returns {boolean} Returns `true` if `value` is greater than or equal to
* `other`, else `false`.
* @see _.lte
* @example
*
* _.gte(3, 1);
* // => true
*
* _.gte(3, 3);
* // => true
*
* _.gte(1, 3);
* // => false
*/
var gte = createRelationalOperation(function(value, other) {
return value >= other;
});
/**
* Checks if `value` is likely an `arguments` object.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is correctly classified,
* else `false`.
* @example
*
* _.isArguments(function() { return arguments; }());
* // => true
*
* _.isArguments([1, 2, 3]);
* // => false
*/
function isArguments(value) {
// Safari 8.1 incorrectly makes `arguments.callee` enumerable in strict mode.
return isArrayLikeObject(value) && hasOwnProperty.call(value, 'callee') &&
(!propertyIsEnumerable.call(value, 'callee') || objectToString.call(value) == argsTag);
}
/**
* Checks if `value` is classified as an `Array` object.
*
* @static
* @memberOf _
* @since 0.1.0
* @type {Function}
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is correctly classified,
* else `false`.
* @example
*
* _.isArray([1, 2, 3]);
* // => true
*
* _.isArray(document.body.children);
* // => false
*
* _.isArray('abc');
* // => false
*
* _.isArray(_.noop);
* // => false
*/
var isArray = Array.isArray;
/**
* Checks if `value` is classified as an `ArrayBuffer` object.
*
* @static
* @memberOf _
* @since 4.3.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is correctly classified,
* else `false`.
* @example
*
* _.isArrayBuffer(new ArrayBuffer(2));
* // => true
*
* _.isArrayBuffer(new Array(2));
* // => false
*/
function isArrayBuffer(value) {
return isObjectLike(value) && objectToString.call(value) == arrayBufferTag;
}
/**
* Checks if `value` is array-like. A value is considered array-like if it's
* not a function and has a `value.length` that's an integer greater than or
* equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is array-like, else `false`.
* @example
*
* _.isArrayLike([1, 2, 3]);
* // => true
*
* _.isArrayLike(document.body.children);
* // => true
*
* _.isArrayLike('abc');
* // => true
*
* _.isArrayLike(_.noop);
* // => false
*/
function isArrayLike(value) {
return value != null && isLength(getLength(value)) && !isFunction(value);
}
/**
* This method is like `_.isArrayLike` except that it also checks if `value`
* is an object.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is an array-like object,
* else `false`.
* @example
*
* _.isArrayLikeObject([1, 2, 3]);
* // => true
*
* _.isArrayLikeObject(document.body.children);
* // => true
*
* _.isArrayLikeObject('abc');
* // => false
*
* _.isArrayLikeObject(_.noop);
* // => false
*/
function isArrayLikeObject(value) {
return isObjectLike(value) && isArrayLike(value);
}
/**
* Checks if `value` is classified as a boolean primitive or object.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is correctly classified,
* else `false`.
* @example
*
* _.isBoolean(false);
* // => true
*
* _.isBoolean(null);
* // => false
*/
function isBoolean(value) {
return value === true || value === false ||
(isObjectLike(value) && objectToString.call(value) == boolTag);
}
/**
* Checks if `value` is a buffer.
*
* @static
* @memberOf _
* @since 4.3.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a buffer, else `false`.
* @example
*
* _.isBuffer(new Buffer(2));
* // => true
*
* _.isBuffer(new Uint8Array(2));
* // => false
*/
var isBuffer = !Buffer ? stubFalse : function(value) {
return value instanceof Buffer;
};
/**
* Checks if `value` is classified as a `Date` object.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is correctly classified,
* else `false`.
* @example
*
* _.isDate(new Date);
* // => true
*
* _.isDate('Mon April 23 2012');
* // => false
*/
function isDate(value) {
return isObjectLike(value) && objectToString.call(value) == dateTag;
}
/**
* Checks if `value` is likely a DOM element.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a DOM element,
* else `false`.
* @example
*
* _.isElement(document.body);
* // => true
*
* _.isElement('<body>');
* // => false
*/
function isElement(value) {
return !!value && value.nodeType === 1 && isObjectLike(value) && !isPlainObject(value);
}
/**
* Checks if `value` is an empty object, collection, map, or set.
*
* Objects are considered empty if they have no own enumerable string keyed
* properties.
*
* Array-like values such as `arguments` objects, arrays, buffers, strings, or
* jQuery-like collections are considered empty if they have a `length` of `0`.
* Similarly, maps and sets are considered empty if they have a `size` of `0`.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is empty, else `false`.
* @example
*
* _.isEmpty(null);
* // => true
*
* _.isEmpty(true);
* // => true
*
* _.isEmpty(1);
* // => true
*
* _.isEmpty([1, 2, 3]);
* // => false
*
* _.isEmpty({ 'a': 1 });
* // => false
*/
function isEmpty(value) {
if (isArrayLike(value) &&
(isArray(value) || isString(value) || isFunction(value.splice) ||
isArguments(value) || isBuffer(value))) {
return !value.length;
}
if (isObjectLike(value)) {
var tag = getTag(value);
if (tag == mapTag || tag == setTag) {
return !value.size;
}
}
for (var key in value) {
if (hasOwnProperty.call(value, key)) {
return false;
}
}
return !(nonEnumShadows && keys(value).length);
}
/**
* Performs a deep comparison between two values to determine if they are
* equivalent.
*
* **Note:** This method supports comparing arrays, array buffers, booleans,
* date objects, error objects, maps, numbers, `Object` objects, regexes,
* sets, strings, symbols, and typed arrays. `Object` objects are compared
* by their own, not inherited, enumerable properties. Functions and DOM
* nodes are **not** supported.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Lang
* @param {*} value The value to compare.
* @param {*} other The other value to compare.
* @returns {boolean} Returns `true` if the values are equivalent,
* else `false`.
* @example
*
* var object = { 'user': 'fred' };
* var other = { 'user': 'fred' };
*
* _.isEqual(object, other);
* // => true
*
* object === other;
* // => false
*/
function isEqual(value, other) {
return baseIsEqual(value, other);
}
/**
* This method is like `_.isEqual` except that it accepts `customizer` which
* is invoked to compare values. If `customizer` returns `undefined`, comparisons
* are handled by the method instead. The `customizer` is invoked with up to
* six arguments: (objValue, othValue [, index|key, object, other, stack]).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to compare.
* @param {*} other The other value to compare.
* @param {Function} [customizer] The function to customize comparisons.
* @returns {boolean} Returns `true` if the values are equivalent,
* else `false`.
* @example
*
* function isGreeting(value) {
* return /^h(?:i|ello)$/.test(value);
* }
*
* function customizer(objValue, othValue) {
* if (isGreeting(objValue) && isGreeting(othValue)) {
* return true;
* }
* }
*
* var array = ['hello', 'goodbye'];
* var other = ['hi', 'goodbye'];
*
* _.isEqualWith(array, other, customizer);
* // => true
*/
function isEqualWith(value, other, customizer) {
customizer = typeof customizer == 'function' ? customizer : undefined;
var result = customizer ? customizer(value, other) : undefined;
return result === undefined ? baseIsEqual(value, other, customizer) : !!result;
}
/**
* Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,
* `SyntaxError`, `TypeError`, or `URIError` object.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is an error object,
* else `false`.
* @example
*
* _.isError(new Error);
* // => true
*
* _.isError(Error);
* // => false
*/
function isError(value) {
if (!isObjectLike(value)) {
return false;
}
return (objectToString.call(value) == errorTag) ||
(typeof value.message == 'string' && typeof value.name == 'string');
}
/**
* Checks if `value` is a finite primitive number.
*
* **Note:** This method is based on
* [`Number.isFinite`](https://mdn.io/Number/isFinite).
*
* @static
* @memberOf _
* @since 0.1.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a finite number,
* else `false`.
* @example
*
* _.isFinite(3);
* // => true
*
* _.isFinite(Number.MIN_VALUE);
* // => true
*
* _.isFinite(Infinity);
* // => false
*
* _.isFinite('3');
* // => false
*/
function isFinite(value) {
return typeof value == 'number' && nativeIsFinite(value);
}
/**
* Checks if `value` is classified as a `Function` object.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is correctly classified,
* else `false`.
* @example
*
* _.isFunction(_);
* // => true
*
* _.isFunction(/abc/);
* // => false
*/
function isFunction(value) {
// The use of `Object#toString` avoids issues with the `typeof` operator
// in Safari 8 which returns 'object' for typed array and weak map constructors,
// and PhantomJS 1.9 which returns 'function' for `NodeList` instances.
var tag = isObject(value) ? objectToString.call(value) : '';
return tag == funcTag || tag == genTag;
}
/**
* Checks if `value` is an integer.
*
* **Note:** This method is based on
* [`Number.isInteger`](https://mdn.io/Number/isInteger).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is an integer, else `false`.
* @example
*
* _.isInteger(3);
* // => true
*
* _.isInteger(Number.MIN_VALUE);
* // => false
*
* _.isInteger(Infinity);
* // => false
*
* _.isInteger('3');
* // => false
*/
function isInteger(value) {
return typeof value == 'number' && value == toInteger(value);
}
/**
* Checks if `value` is a valid array-like length.
*
* **Note:** This function is loosely based on
* [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a valid length,
* else `false`.
* @example
*
* _.isLength(3);
* // => true
*
* _.isLength(Number.MIN_VALUE);
* // => false
*
* _.isLength(Infinity);
* // => false
*
* _.isLength('3');
* // => false
*/
function isLength(value) {
return typeof value == 'number' &&
value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
}
/**
* Checks if `value` is the
* [language type](http://www.ecma-international.org/ecma-262/6.0/#sec-ecmascript-language-types)
* of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
*
* @static
* @memberOf _
* @since 0.1.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is an object, else `false`.
* @example
*
* _.isObject({});
* // => true
*
* _.isObject([1, 2, 3]);
* // => true
*
* _.isObject(_.noop);
* // => true
*
* _.isObject(null);
* // => false
*/
function isObject(value) {
var type = typeof value;
return !!value && (type == 'object' || type == 'function');
}
/**
* Checks if `value` is object-like. A value is object-like if it's not `null`
* and has a `typeof` result of "object".
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is object-like, else `false`.
* @example
*
* _.isObjectLike({});
* // => true
*
* _.isObjectLike([1, 2, 3]);
* // => true
*
* _.isObjectLike(_.noop);
* // => false
*
* _.isObjectLike(null);
* // => false
*/
function isObjectLike(value) {
return !!value && typeof value == 'object';
}
/**
* Checks if `value` is classified as a `Map` object.
*
* @static
* @memberOf _
* @since 4.3.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is correctly classified,
* else `false`.
* @example
*
* _.isMap(new Map);
* // => true
*
* _.isMap(new WeakMap);
* // => false
*/
function isMap(value) {
return isObjectLike(value) && getTag(value) == mapTag;
}
/**
* Performs a partial deep comparison between `object` and `source` to
* determine if `object` contains equivalent property values. This method is
* equivalent to a `_.matches` function when `source` is partially applied.
*
* **Note:** This method supports comparing the same values as `_.isEqual`.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Lang
* @param {Object} object The object to inspect.
* @param {Object} source The object of property values to match.
* @returns {boolean} Returns `true` if `object` is a match, else `false`.
* @example
*
* var object = { 'user': 'fred', 'age': 40 };
*
* _.isMatch(object, { 'age': 40 });
* // => true
*
* _.isMatch(object, { 'age': 36 });
* // => false
*/
function isMatch(object, source) {
return object === source || baseIsMatch(object, source, getMatchData(source));
}
/**
* This method is like `_.isMatch` except that it accepts `customizer` which
* is invoked to compare values. If `customizer` returns `undefined`, comparisons
* are handled by the method instead. The `customizer` is invoked with five
* arguments: (objValue, srcValue, index|key, object, source).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {Object} object The object to inspect.
* @param {Object} source The object of property values to match.
* @param {Function} [customizer] The function to customize comparisons.
* @returns {boolean} Returns `true` if `object` is a match, else `false`.
* @example
*
* function isGreeting(value) {
* return /^h(?:i|ello)$/.test(value);
* }
*
* function customizer(objValue, srcValue) {
* if (isGreeting(objValue) && isGreeting(srcValue)) {
* return true;
* }
* }
*
* var object = { 'greeting': 'hello' };
* var source = { 'greeting': 'hi' };
*
* _.isMatchWith(object, source, customizer);
* // => true
*/
function isMatchWith(object, source, customizer) {
customizer = typeof customizer == 'function' ? customizer : undefined;
return baseIsMatch(object, source, getMatchData(source), customizer);
}
/**
* Checks if `value` is `NaN`.
*
* **Note:** This method is based on
* [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as
* global [`isNaN`](https://mdn.io/isNaN) which returns `true` for
* `undefined` and other non-number values.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
* @example
*
* _.isNaN(NaN);
* // => true
*
* _.isNaN(new Number(NaN));
* // => true
*
* isNaN(undefined);
* // => true
*
* _.isNaN(undefined);
* // => false
*/
function isNaN(value) {
// An `NaN` primitive is the only value that is not equal to itself.
// Perform the `toStringTag` check first to avoid errors with some
// ActiveX objects in IE.
return isNumber(value) && value != +value;
}
/**
* Checks if `value` is a pristine native function.
*
* **Note:** This method can't reliably detect native functions in the
* presence of the `core-js` package because `core-js` circumvents this kind
* of detection. Despite multiple requests, the `core-js` maintainer has made
* it clear: any attempt to fix the detection will be obstructed. As a result,
* we're left with little choice but to throw an error. Unfortunately, this
* also affects packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),
* which rely on `core-js`.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a native function,
* else `false`.
* @example
*
* _.isNative(Array.prototype.push);
* // => true
*
* _.isNative(_);
* // => false
*/
function isNative(value) {
if (isMaskable(value)) {
throw new Error('This method is not supported with `core-js`. Try https://github.com/es-shims.');
}
return baseIsNative(value);
}
/**
* Checks if `value` is `null`.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is `null`, else `false`.
* @example
*
* _.isNull(null);
* // => true
*
* _.isNull(void 0);
* // => false
*/
function isNull(value) {
return value === null;
}
/**
* Checks if `value` is `null` or `undefined`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is nullish, else `false`.
* @example
*
* _.isNil(null);
* // => true
*
* _.isNil(void 0);
* // => true
*
* _.isNil(NaN);
* // => false
*/
function isNil(value) {
return value == null;
}
/**
* Checks if `value` is classified as a `Number` primitive or object.
*
* **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are
* classified as numbers, use the `_.isFinite` method.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is correctly classified,
* else `false`.
* @example
*
* _.isNumber(3);
* // => true
*
* _.isNumber(Number.MIN_VALUE);
* // => true
*
* _.isNumber(Infinity);
* // => true
*
* _.isNumber('3');
* // => false
*/
function isNumber(value) {
return typeof value == 'number' ||
(isObjectLike(value) && objectToString.call(value) == numberTag);
}
/**
* Checks if `value` is a plain object, that is, an object created by the
* `Object` constructor or one with a `[[Prototype]]` of `null`.
*
* @static
* @memberOf _
* @since 0.8.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a plain object,
* else `false`.
* @example
*
* function Foo() {
* this.a = 1;
* }
*
* _.isPlainObject(new Foo);
* // => false
*
* _.isPlainObject([1, 2, 3]);
* // => false
*
* _.isPlainObject({ 'x': 0, 'y': 0 });
* // => true
*
* _.isPlainObject(Object.create(null));
* // => true
*/
function isPlainObject(value) {
if (!isObjectLike(value) ||
objectToString.call(value) != objectTag || isHostObject(value)) {
return false;
}
var proto = getPrototype(value);
if (proto === null) {
return true;
}
var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;
return (typeof Ctor == 'function' &&
Ctor instanceof Ctor && funcToString.call(Ctor) == objectCtorString);
}
/**
* Checks if `value` is classified as a `RegExp` object.
*
* @static
* @memberOf _
* @since 0.1.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is correctly classified,
* else `false`.
* @example
*
* _.isRegExp(/abc/);
* // => true
*
* _.isRegExp('/abc/');
* // => false
*/
function isRegExp(value) {
return isObject(value) && objectToString.call(value) == regexpTag;
}
/**
* Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754
* double precision number which isn't the result of a rounded unsafe integer.
*
* **Note:** This method is based on
* [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a safe integer,
* else `false`.
* @example
*
* _.isSafeInteger(3);
* // => true
*
* _.isSafeInteger(Number.MIN_VALUE);
* // => false
*
* _.isSafeInteger(Infinity);
* // => false
*
* _.isSafeInteger('3');
* // => false
*/
function isSafeInteger(value) {
return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;
}
/**
* Checks if `value` is classified as a `Set` object.
*
* @static
* @memberOf _
* @since 4.3.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is correctly classified,
* else `false`.
* @example
*
* _.isSet(new Set);
* // => true
*
* _.isSet(new WeakSet);
* // => false
*/
function isSet(value) {
return isObjectLike(value) && getTag(value) == setTag;
}
/**
* Checks if `value` is classified as a `String` primitive or object.
*
* @static
* @since 0.1.0
* @memberOf _
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is correctly classified,
* else `false`.
* @example
*
* _.isString('abc');
* // => true
*
* _.isString(1);
* // => false
*/
function isString(value) {
return typeof value == 'string' ||
(!isArray(value) && isObjectLike(value) && objectToString.call(value) == stringTag);
}
/**
* Checks if `value` is classified as a `Symbol` primitive or object.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is correctly classified,
* else `false`.
* @example
*
* _.isSymbol(Symbol.iterator);
* // => true
*
* _.isSymbol('abc');
* // => false
*/
function isSymbol(value) {
return typeof value == 'symbol' ||
(isObjectLike(value) && objectToString.call(value) == symbolTag);
}
/**
* Checks if `value` is classified as a typed array.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is correctly classified,
* else `false`.
* @example
*
* _.isTypedArray(new Uint8Array);
* // => true
*
* _.isTypedArray([]);
* // => false
*/
function isTypedArray(value) {
return isObjectLike(value) &&
isLength(value.length) && !!typedArrayTags[objectToString.call(value)];
}
/**
* Checks if `value` is `undefined`.
*
* @static
* @since 0.1.0
* @memberOf _
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.
* @example
*
* _.isUndefined(void 0);
* // => true
*
* _.isUndefined(null);
* // => false
*/
function isUndefined(value) {
return value === undefined;
}
/**
* Checks if `value` is classified as a `WeakMap` object.
*
* @static
* @memberOf _
* @since 4.3.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is correctly classified,
* else `false`.
* @example
*
* _.isWeakMap(new WeakMap);
* // => true
*
* _.isWeakMap(new Map);
* // => false
*/
function isWeakMap(value) {
return isObjectLike(value) && getTag(value) == weakMapTag;
}
/**
* Checks if `value` is classified as a `WeakSet` object.
*
* @static
* @memberOf _
* @since 4.3.0
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is correctly classified,
* else `false`.
* @example
*
* _.isWeakSet(new WeakSet);
* // => true
*
* _.isWeakSet(new Set);
* // => false
*/
function isWeakSet(value) {
return isObjectLike(value) && objectToString.call(value) == weakSetTag;
}
/**
* Checks if `value` is less than `other`.
*
* @static
* @memberOf _
* @since 3.9.0
* @category Lang
* @param {*} value The value to compare.
* @param {*} other The other value to compare.
* @returns {boolean} Returns `true` if `value` is less than `other`,
* else `false`.
* @see _.gt
* @example
*
* _.lt(1, 3);
* // => true
*
* _.lt(3, 3);
* // => false
*
* _.lt(3, 1);
* // => false
*/
var lt = createRelationalOperation(baseLt);
/**
* Checks if `value` is less than or equal to `other`.
*
* @static
* @memberOf _
* @since 3.9.0
* @category Lang
* @param {*} value The value to compare.
* @param {*} other The other value to compare.
* @returns {boolean} Returns `true` if `value` is less than or equal to
* `other`, else `false`.
* @see _.gte
* @example
*
* _.lte(1, 3);
* // => true
*
* _.lte(3, 3);
* // => true
*
* _.lte(3, 1);
* // => false
*/
var lte = createRelationalOperation(function(value, other) {
return value <= other;
});
/**
* Converts `value` to an array.
*
* @static
* @since 0.1.0
* @memberOf _
* @category Lang
* @param {*} value The value to convert.
* @returns {Array} Returns the converted array.
* @example
*
* _.toArray({ 'a': 1, 'b': 2 });
* // => [1, 2]
*
* _.toArray('abc');
* // => ['a', 'b', 'c']
*
* _.toArray(1);
* // => []
*
* _.toArray(null);
* // => []
*/
function toArray(value) {
if (!value) {
return [];
}
if (isArrayLike(value)) {
return isString(value) ? stringToArray(value) : copyArray(value);
}
if (iteratorSymbol && value[iteratorSymbol]) {
return iteratorToArray(value[iteratorSymbol]());
}
var tag = getTag(value),
func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values);
return func(value);
}
/**
* Converts `value` to a finite number.
*
* @static
* @memberOf _
* @since 4.12.0
* @category Lang
* @param {*} value The value to convert.
* @returns {number} Returns the converted number.
* @example
*
* _.toFinite(3.2);
* // => 3.2
*
* _.toFinite(Number.MIN_VALUE);
* // => 5e-324
*
* _.toFinite(Infinity);
* // => 1.7976931348623157e+308
*
* _.toFinite('3.2');
* // => 3.2
*/
function toFinite(value) {
if (!value) {
return value === 0 ? value : 0;
}
value = toNumber(value);
if (value === INFINITY || value === -INFINITY) {
var sign = (value < 0 ? -1 : 1);
return sign * MAX_INTEGER;
}
return value === value ? value : 0;
}
/**
* Converts `value` to an integer.
*
* **Note:** This method is loosely based on
* [`ToInteger`](http://www.ecma-international.org/ecma-262/6.0/#sec-tointeger).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to convert.
* @returns {number} Returns the converted integer.
* @example
*
* _.toInteger(3.2);
* // => 3
*
* _.toInteger(Number.MIN_VALUE);
* // => 0
*
* _.toInteger(Infinity);
* // => 1.7976931348623157e+308
*
* _.toInteger('3.2');
* // => 3
*/
function toInteger(value) {
var result = toFinite(value),
remainder = result % 1;
return result === result ? (remainder ? result - remainder : result) : 0;
}
/**
* Converts `value` to an integer suitable for use as the length of an
* array-like object.
*
* **Note:** This method is based on
* [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to convert.
* @returns {number} Returns the converted integer.
* @example
*
* _.toLength(3.2);
* // => 3
*
* _.toLength(Number.MIN_VALUE);
* // => 0
*
* _.toLength(Infinity);
* // => 4294967295
*
* _.toLength('3.2');
* // => 3
*/
function toLength(value) {
return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;
}
/**
* Converts `value` to a number.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to process.
* @returns {number} Returns the number.
* @example
*
* _.toNumber(3.2);
* // => 3.2
*
* _.toNumber(Number.MIN_VALUE);
* // => 5e-324
*
* _.toNumber(Infinity);
* // => Infinity
*
* _.toNumber('3.2');
* // => 3.2
*/
function toNumber(value) {
if (typeof value == 'number') {
return value;
}
if (isSymbol(value)) {
return NAN;
}
if (isObject(value)) {
var other = isFunction(value.valueOf) ? value.valueOf() : value;
value = isObject(other) ? (other + '') : other;
}
if (typeof value != 'string') {
return value === 0 ? value : +value;
}
value = value.replace(reTrim, '');
var isBinary = reIsBinary.test(value);
return (isBinary || reIsOctal.test(value))
? freeParseInt(value.slice(2), isBinary ? 2 : 8)
: (reIsBadHex.test(value) ? NAN : +value);
}
/**
* Converts `value` to a plain object flattening inherited enumerable string
* keyed properties of `value` to own properties of the plain object.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Lang
* @param {*} value The value to convert.
* @returns {Object} Returns the converted plain object.
* @example
*
* function Foo() {
* this.b = 2;
* }
*
* Foo.prototype.c = 3;
*
* _.assign({ 'a': 1 }, new Foo);
* // => { 'a': 1, 'b': 2 }
*
* _.assign({ 'a': 1 }, _.toPlainObject(new Foo));
* // => { 'a': 1, 'b': 2, 'c': 3 }
*/
function toPlainObject(value) {
return copyObject(value, keysIn(value));
}
/**
* Converts `value` to a safe integer. A safe integer can be compared and
* represented correctly.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to convert.
* @returns {number} Returns the converted integer.
* @example
*
* _.toSafeInteger(3.2);
* // => 3
*
* _.toSafeInteger(Number.MIN_VALUE);
* // => 0
*
* _.toSafeInteger(Infinity);
* // => 9007199254740991
*
* _.toSafeInteger('3.2');
* // => 3
*/
function toSafeInteger(value) {
return baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER);
}
/**
* Converts `value` to a string. An empty string is returned for `null`
* and `undefined` values. The sign of `-0` is preserved.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Lang
* @param {*} value The value to process.
* @returns {string} Returns the string.
* @example
*
* _.toString(null);
* // => ''
*
* _.toString(-0);
* // => '-0'
*
* _.toString([1, 2, 3]);
* // => '1,2,3'
*/
function toString(value) {
return value == null ? '' : baseToString(value);
}
/*------------------------------------------------------------------------*/
/**
* Assigns own enumerable string keyed properties of source objects to the
* destination object. Source objects are applied from left to right.
* Subsequent sources overwrite property assignments of previous sources.
*
* **Note:** This method mutates `object` and is loosely based on
* [`Object.assign`](https://mdn.io/Object/assign).
*
* @static
* @memberOf _
* @since 0.10.0
* @category Object
* @param {Object} object The destination object.
* @param {...Object} [sources] The source objects.
* @returns {Object} Returns `object`.
* @see _.assignIn
* @example
*
* function Foo() {
* this.c = 3;
* }
*
* function Bar() {
* this.e = 5;
* }
*
* Foo.prototype.d = 4;
* Bar.prototype.f = 6;
*
* _.assign({ 'a': 1 }, new Foo, new Bar);
* // => { 'a': 1, 'c': 3, 'e': 5 }
*/
var assign = createAssigner(function(object, source) {
if (nonEnumShadows || isPrototype(source) || isArrayLike(source)) {
copyObject(source, keys(source), object);
return;
}
for (var key in source) {
if (hasOwnProperty.call(source, key)) {
assignValue(object, key, source[key]);
}
}
});
/**
* This method is like `_.assign` except that it iterates over own and
* inherited source properties.
*
* **Note:** This method mutates `object`.
*
* @static
* @memberOf _
* @since 4.0.0
* @alias extend
* @category Object
* @param {Object} object The destination object.
* @param {...Object} [sources] The source objects.
* @returns {Object} Returns `object`.
* @see _.assign
* @example
*
* function Foo() {
* this.b = 2;
* }
*
* function Bar() {
* this.d = 4;
* }
*
* Foo.prototype.c = 3;
* Bar.prototype.e = 5;
*
* _.assignIn({ 'a': 1 }, new Foo, new Bar);
* // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4, 'e': 5 }
*/
var assignIn = createAssigner(function(object, source) {
if (nonEnumShadows || isPrototype(source) || isArrayLike(source)) {
copyObject(source, keysIn(source), object);
return;
}
for (var key in source) {
assignValue(object, key, source[key]);
}
});
/**
* This method is like `_.assignIn` except that it accepts `customizer`
* which is invoked to produce the assigned values. If `customizer` returns
* `undefined`, assignment is handled by the method instead. The `customizer`
* is invoked with five arguments: (objValue, srcValue, key, object, source).
*
* **Note:** This method mutates `object`.
*
* @static
* @memberOf _
* @since 4.0.0
* @alias extendWith
* @category Object
* @param {Object} object The destination object.
* @param {...Object} sources The source objects.
* @param {Function} [customizer] The function to customize assigned values.
* @returns {Object} Returns `object`.
* @see _.assignWith
* @example
*
* function customizer(objValue, srcValue) {
* return _.isUndefined(objValue) ? srcValue : objValue;
* }
*
* var defaults = _.partialRight(_.assignInWith, customizer);
*
* defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
* // => { 'a': 1, 'b': 2 }
*/
var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {
copyObject(source, keysIn(source), object, customizer);
});
/**
* This method is like `_.assign` except that it accepts `customizer`
* which is invoked to produce the assigned values. If `customizer` returns
* `undefined`, assignment is handled by the method instead. The `customizer`
* is invoked with five arguments: (objValue, srcValue, key, object, source).
*
* **Note:** This method mutates `object`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Object
* @param {Object} object The destination object.
* @param {...Object} sources The source objects.
* @param {Function} [customizer] The function to customize assigned values.
* @returns {Object} Returns `object`.
* @see _.assignInWith
* @example
*
* function customizer(objValue, srcValue) {
* return _.isUndefined(objValue) ? srcValue : objValue;
* }
*
* var defaults = _.partialRight(_.assignWith, customizer);
*
* defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
* // => { 'a': 1, 'b': 2 }
*/
var assignWith = createAssigner(function(object, source, srcIndex, customizer) {
copyObject(source, keys(source), object, customizer);
});
/**
* Creates an array of values corresponding to `paths` of `object`.
*
* @static
* @memberOf _
* @since 1.0.0
* @category Object
* @param {Object} object The object to iterate over.
* @param {...(string|string[])} [paths] The property paths of elements to pick.
* @returns {Array} Returns the picked values.
* @example
*
* var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
*
* _.at(object, ['a[0].b.c', 'a[1]']);
* // => [3, 4]
*/
var at = rest(function(object, paths) {
return baseAt(object, baseFlatten(paths, 1));
});
/**
* Creates an object that inherits from the `prototype` object. If a
* `properties` object is given, its own enumerable string keyed properties
* are assigned to the created object.
*
* @static
* @memberOf _
* @since 2.3.0
* @category Object
* @param {Object} prototype The object to inherit from.
* @param {Object} [properties] The properties to assign to the object.
* @returns {Object} Returns the new object.
* @example
*
* function Shape() {
* this.x = 0;
* this.y = 0;
* }
*
* function Circle() {
* Shape.call(this);
* }
*
* Circle.prototype = _.create(Shape.prototype, {
* 'constructor': Circle
* });
*
* var circle = new Circle;
* circle instanceof Circle;
* // => true
*
* circle instanceof Shape;
* // => true
*/
function create(prototype, properties) {
var result = baseCreate(prototype);
return properties ? baseAssign(result, properties) : result;
}
/**
* Assigns own and inherited enumerable string keyed properties of source
* objects to the destination object for all destination properties that
* resolve to `undefined`. Source objects are applied from left to right.
* Once a property is set, additional values of the same property are ignored.
*
* **Note:** This method mutates `object`.
*
* @static
* @since 0.1.0
* @memberOf _
* @category Object
* @param {Object} object The destination object.
* @param {...Object} [sources] The source objects.
* @returns {Object} Returns `object`.
* @see _.defaultsDeep
* @example
*
* _.defaults({ 'user': 'barney' }, { 'age': 36 }, { 'user': 'fred' });
* // => { 'user': 'barney', 'age': 36 }
*/
var defaults = rest(function(args) {
args.push(undefined, assignInDefaults);
return apply(assignInWith, undefined, args);
});
/**
* This method is like `_.defaults` except that it recursively assigns
* default properties.
*
* **Note:** This method mutates `object`.
*
* @static
* @memberOf _
* @since 3.10.0
* @category Object
* @param {Object} object The destination object.
* @param {...Object} [sources] The source objects.
* @returns {Object} Returns `object`.
* @see _.defaults
* @example
*
* _.defaultsDeep({ 'user': { 'name': 'barney' } }, { 'user': { 'name': 'fred', 'age': 36 } });
* // => { 'user': { 'name': 'barney', 'age': 36 } }
*
*/
var defaultsDeep = rest(function(args) {
args.push(undefined, mergeDefaults);
return apply(mergeWith, undefined, args);
});
/**
* This method is like `_.find` except that it returns the key of the first
* element `predicate` returns truthy for instead of the element itself.
*
* @static
* @memberOf _
* @since 1.1.0
* @category Object
* @param {Object} object The object to search.
* @param {Array|Function|Object|string} [predicate=_.identity]
* The function invoked per iteration.
* @returns {string|undefined} Returns the key of the matched element,
* else `undefined`.
* @example
*
* var users = {
* 'barney': { 'age': 36, 'active': true },
* 'fred': { 'age': 40, 'active': false },
* 'pebbles': { 'age': 1, 'active': true }
* };
*
* _.findKey(users, function(o) { return o.age < 40; });
* // => 'barney' (iteration order is not guaranteed)
*
* // The `_.matches` iteratee shorthand.
* _.findKey(users, { 'age': 1, 'active': true });
* // => 'pebbles'
*
* // The `_.matchesProperty` iteratee shorthand.
* _.findKey(users, ['active', false]);
* // => 'fred'
*
* // The `_.property` iteratee shorthand.
* _.findKey(users, 'active');
* // => 'barney'
*/
function findKey(object, predicate) {
return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);
}
/**
* This method is like `_.findKey` except that it iterates over elements of
* a collection in the opposite order.
*
* @static
* @memberOf _
* @since 2.0.0
* @category Object
* @param {Object} object The object to search.
* @param {Array|Function|Object|string} [predicate=_.identity]
* The function invoked per iteration.
* @returns {string|undefined} Returns the key of the matched element,
* else `undefined`.
* @example
*
* var users = {
* 'barney': { 'age': 36, 'active': true },
* 'fred': { 'age': 40, 'active': false },
* 'pebbles': { 'age': 1, 'active': true }
* };
*
* _.findLastKey(users, function(o) { return o.age < 40; });
* // => returns 'pebbles' assuming `_.findKey` returns 'barney'
*
* // The `_.matches` iteratee shorthand.
* _.findLastKey(users, { 'age': 36, 'active': true });
* // => 'barney'
*
* // The `_.matchesProperty` iteratee shorthand.
* _.findLastKey(users, ['active', false]);
* // => 'fred'
*
* // The `_.property` iteratee shorthand.
* _.findLastKey(users, 'active');
* // => 'pebbles'
*/
function findLastKey(object, predicate) {
return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight);
}
/**
* Iterates over own and inherited enumerable string keyed properties of an
* object and invokes `iteratee` for each property. The iteratee is invoked
* with three arguments: (value, key, object). Iteratee functions may exit
* iteration early by explicitly returning `false`.
*
* @static
* @memberOf _
* @since 0.3.0
* @category Object
* @param {Object} object The object to iterate over.
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
* @returns {Object} Returns `object`.
* @see _.forInRight
* @example
*
* function Foo() {
* this.a = 1;
* this.b = 2;
* }
*
* Foo.prototype.c = 3;
*
* _.forIn(new Foo, function(value, key) {
* console.log(key);
* });
* // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).
*/
function forIn(object, iteratee) {
return object == null
? object
: baseFor(object, getIteratee(iteratee, 3), keysIn);
}
/**
* This method is like `_.forIn` except that it iterates over properties of
* `object` in the opposite order.
*
* @static
* @memberOf _
* @since 2.0.0
* @category Object
* @param {Object} object The object to iterate over.
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
* @returns {Object} Returns `object`.
* @see _.forIn
* @example
*
* function Foo() {
* this.a = 1;
* this.b = 2;
* }
*
* Foo.prototype.c = 3;
*
* _.forInRight(new Foo, function(value, key) {
* console.log(key);
* });
* // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.
*/
function forInRight(object, iteratee) {
return object == null
? object
: baseForRight(object, getIteratee(iteratee, 3), keysIn);
}
/**
* Iterates over own enumerable string keyed properties of an object and
* invokes `iteratee` for each property. The iteratee is invoked with three
* arguments: (value, key, object). Iteratee functions may exit iteration
* early by explicitly returning `false`.
*
* @static
* @memberOf _
* @since 0.3.0
* @category Object
* @param {Object} object The object to iterate over.
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
* @returns {Object} Returns `object`.
* @see _.forOwnRight
* @example
*
* function Foo() {
* this.a = 1;
* this.b = 2;
* }
*
* Foo.prototype.c = 3;
*
* _.forOwn(new Foo, function(value, key) {
* console.log(key);
* });
* // => Logs 'a' then 'b' (iteration order is not guaranteed).
*/
function forOwn(object, iteratee) {
return object && baseForOwn(object, getIteratee(iteratee, 3));
}
/**
* This method is like `_.forOwn` except that it iterates over properties of
* `object` in the opposite order.
*
* @static
* @memberOf _
* @since 2.0.0
* @category Object
* @param {Object} object The object to iterate over.
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
* @returns {Object} Returns `object`.
* @see _.forOwn
* @example
*
* function Foo() {
* this.a = 1;
* this.b = 2;
* }
*
* Foo.prototype.c = 3;
*
* _.forOwnRight(new Foo, function(value, key) {
* console.log(key);
* });
* // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.
*/
function forOwnRight(object, iteratee) {
return object && baseForOwnRight(object, getIteratee(iteratee, 3));
}
/**
* Creates an array of function property names from own enumerable properties
* of `object`.
*
* @static
* @since 0.1.0
* @memberOf _
* @category Object
* @param {Object} object The object to inspect.
* @returns {Array} Returns the function names.
* @see _.functionsIn
* @example
*
* function Foo() {
* this.a = _.constant('a');
* this.b = _.constant('b');
* }
*
* Foo.prototype.c = _.constant('c');
*
* _.functions(new Foo);
* // => ['a', 'b']
*/
function functions(object) {
return object == null ? [] : baseFunctions(object, keys(object));
}
/**
* Creates an array of function property names from own and inherited
* enumerable properties of `object`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Object
* @param {Object} object The object to inspect.
* @returns {Array} Returns the function names.
* @see _.functions
* @example
*
* function Foo() {
* this.a = _.constant('a');
* this.b = _.constant('b');
* }
*
* Foo.prototype.c = _.constant('c');
*
* _.functionsIn(new Foo);
* // => ['a', 'b', 'c']
*/
function functionsIn(object) {
return object == null ? [] : baseFunctions(object, keysIn(object));
}
/**
* Gets the value at `path` of `object`. If the resolved value is
* `undefined`, the `defaultValue` is used in its place.
*
* @static
* @memberOf _
* @since 3.7.0
* @category Object
* @param {Object} object The object to query.
* @param {Array|string} path The path of the property to get.
* @param {*} [defaultValue] The value returned for `undefined` resolved values.
* @returns {*} Returns the resolved value.
* @example
*
* var object = { 'a': [{ 'b': { 'c': 3 } }] };
*
* _.get(object, 'a[0].b.c');
* // => 3
*
* _.get(object, ['a', '0', 'b', 'c']);
* // => 3
*
* _.get(object, 'a.b.c', 'default');
* // => 'default'
*/
function get(object, path, defaultValue) {
var result = object == null ? undefined : baseGet(object, path);
return result === undefined ? defaultValue : result;
}
/**
* Checks if `path` is a direct property of `object`.
*
* @static
* @since 0.1.0
* @memberOf _
* @category Object
* @param {Object} object The object to query.
* @param {Array|string} path The path to check.
* @returns {boolean} Returns `true` if `path` exists, else `false`.
* @example
*
* var object = { 'a': { 'b': 2 } };
* var other = _.create({ 'a': _.create({ 'b': 2 }) });
*
* _.has(object, 'a');
* // => true
*
* _.has(object, 'a.b');
* // => true
*
* _.has(object, ['a', 'b']);
* // => true
*
* _.has(other, 'a');
* // => false
*/
function has(object, path) {
return object != null && hasPath(object, path, baseHas);
}
/**
* Checks if `path` is a direct or inherited property of `object`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Object
* @param {Object} object The object to query.
* @param {Array|string} path The path to check.
* @returns {boolean} Returns `true` if `path` exists, else `false`.
* @example
*
* var object = _.create({ 'a': _.create({ 'b': 2 }) });
*
* _.hasIn(object, 'a');
* // => true
*
* _.hasIn(object, 'a.b');
* // => true
*
* _.hasIn(object, ['a', 'b']);
* // => true
*
* _.hasIn(object, 'b');
* // => false
*/
function hasIn(object, path) {
return object != null && hasPath(object, path, baseHasIn);
}
/**
* Creates an object composed of the inverted keys and values of `object`.
* If `object` contains duplicate values, subsequent values overwrite
* property assignments of previous values.
*
* @static
* @memberOf _
* @since 0.7.0
* @category Object
* @param {Object} object The object to invert.
* @returns {Object} Returns the new inverted object.
* @example
*
* var object = { 'a': 1, 'b': 2, 'c': 1 };
*
* _.invert(object);
* // => { '1': 'c', '2': 'b' }
*/
var invert = createInverter(function(result, value, key) {
result[value] = key;
}, constant(identity));
/**
* This method is like `_.invert` except that the inverted object is generated
* from the results of running each element of `object` thru `iteratee`. The
* corresponding inverted value of each inverted key is an array of keys
* responsible for generating the inverted value. The iteratee is invoked
* with one argument: (value).
*
* @static
* @memberOf _
* @since 4.1.0
* @category Object
* @param {Object} object The object to invert.
* @param {Array|Function|Object|string} [iteratee=_.identity]
* The iteratee invoked per element.
* @returns {Object} Returns the new inverted object.
* @example
*
* var object = { 'a': 1, 'b': 2, 'c': 1 };
*
* _.invertBy(object);
* // => { '1': ['a', 'c'], '2': ['b'] }
*
* _.invertBy(object, function(value) {
* return 'group' + value;
* });
* // => { 'group1': ['a', 'c'], 'group2': ['b'] }
*/
var invertBy = createInverter(function(result, value, key) {
if (hasOwnProperty.call(result, value)) {
result[value].push(key);
} else {
result[value] = [key];
}
}, getIteratee);
/**
* Invokes the method at `path` of `object`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Object
* @param {Object} object The object to query.
* @param {Array|string} path The path of the method to invoke.
* @param {...*} [args] The arguments to invoke the method with.
* @returns {*} Returns the result of the invoked method.
* @example
*
* var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };
*
* _.invoke(object, 'a[0].b.c.slice', 1, 3);
* // => [2, 3]
*/
var invoke = rest(baseInvoke);
/**
* Creates an array of the own enumerable property names of `object`.
*
* **Note:** Non-object values are coerced to objects. See the
* [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys)
* for more details.
*
* @static
* @since 0.1.0
* @memberOf _
* @category Object
* @param {Object} object The object to query.
* @returns {Array} Returns the array of property names.
* @example
*
* function Foo() {
* this.a = 1;
* this.b = 2;
* }
*
* Foo.prototype.c = 3;
*
* _.keys(new Foo);
* // => ['a', 'b'] (iteration order is not guaranteed)
*
* _.keys('hi');
* // => ['0', '1']
*/
function keys(object) {
var isProto = isPrototype(object);
if (!(isProto || isArrayLike(object))) {
return baseKeys(object);
}
var indexes = indexKeys(object),
skipIndexes = !!indexes,
result = indexes || [],
length = result.length;
for (var key in object) {
if (baseHas(object, key) &&
!(skipIndexes && (key == 'length' || isIndex(key, length))) &&
!(isProto && key == 'constructor')) {
result.push(key);
}
}
return result;
}
/**
* Creates an array of the own and inherited enumerable property names of `object`.
*
* **Note:** Non-object values are coerced to objects.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Object
* @param {Object} object The object to query.
* @returns {Array} Returns the array of property names.
* @example
*
* function Foo() {
* this.a = 1;
* this.b = 2;
* }
*
* Foo.prototype.c = 3;
*
* _.keysIn(new Foo);
* // => ['a', 'b', 'c'] (iteration order is not guaranteed)
*/
function keysIn(object) {
var index = -1,
isProto = isPrototype(object),
props = baseKeysIn(object),
propsLength = props.length,
indexes = indexKeys(object),
skipIndexes = !!indexes,
result = indexes || [],
length = result.length;
while (++index < propsLength) {
var key = props[index];
if (!(skipIndexes && (key == 'length' || isIndex(key, length))) &&
!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
result.push(key);
}
}
return result;
}
/**
* The opposite of `_.mapValues`; this method creates an object with the
* same values as `object` and keys generated by running each own enumerable
* string keyed property of `object` thru `iteratee`. The iteratee is invoked
* with three arguments: (value, key, object).
*
* @static
* @memberOf _
* @since 3.8.0
* @category Object
* @param {Object} object The object to iterate over.
* @param {Array|Function|Object|string} [iteratee=_.identity]
* The function invoked per iteration.
* @returns {Object} Returns the new mapped object.
* @see _.mapValues
* @example
*
* _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {
* return key + value;
* });
* // => { 'a1': 1, 'b2': 2 }
*/
function mapKeys(object, iteratee) {
var result = {};
iteratee = getIteratee(iteratee, 3);
baseForOwn(object, function(value, key, object) {
result[iteratee(value, key, object)] = value;
});
return result;
}
/**
* Creates an object with the same keys as `object` and values generated
* by running each own enumerable string keyed property of `object` thru
* `iteratee`. The iteratee is invoked with three arguments:
* (value, key, object).
*
* @static
* @memberOf _
* @since 2.4.0
* @category Object
* @param {Object} object The object to iterate over.
* @param {Array|Function|Object|string} [iteratee=_.identity]
* The function invoked per iteration.
* @returns {Object} Returns the new mapped object.
* @see _.mapKeys
* @example
*
* var users = {
* 'fred': { 'user': 'fred', 'age': 40 },
* 'pebbles': { 'user': 'pebbles', 'age': 1 }
* };
*
* _.mapValues(users, function(o) { return o.age; });
* // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
*
* // The `_.property` iteratee shorthand.
* _.mapValues(users, 'age');
* // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
*/
function mapValues(object, iteratee) {
var result = {};
iteratee = getIteratee(iteratee, 3);
baseForOwn(object, function(value, key, object) {
result[key] = iteratee(value, key, object);
});
return result;
}
/**
* This method is like `_.assign` except that it recursively merges own and
* inherited enumerable string keyed properties of source objects into the
* destination object. Source properties that resolve to `undefined` are
* skipped if a destination value exists. Array and plain object properties
* are merged recursively. Other objects and value types are overridden by
* assignment. Source objects are applied from left to right. Subsequent
* sources overwrite property assignments of previous sources.
*
* **Note:** This method mutates `object`.
*
* @static
* @memberOf _
* @since 0.5.0
* @category Object
* @param {Object} object The destination object.
* @param {...Object} [sources] The source objects.
* @returns {Object} Returns `object`.
* @example
*
* var users = {
* 'data': [{ 'user': 'barney' }, { 'user': 'fred' }]
* };
*
* var ages = {
* 'data': [{ 'age': 36 }, { 'age': 40 }]
* };
*
* _.merge(users, ages);
* // => { 'data': [{ 'user': 'barney', 'age': 36 }, { 'user': 'fred', 'age': 40 }] }
*/
var merge = createAssigner(function(object, source, srcIndex) {
baseMerge(object, source, srcIndex);
});
/**
* This method is like `_.merge` except that it accepts `customizer` which
* is invoked to produce the merged values of the destination and source
* properties. If `customizer` returns `undefined`, merging is handled by the
* method instead. The `customizer` is invoked with seven arguments:
* (objValue, srcValue, key, object, source, stack).
*
* **Note:** This method mutates `object`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Object
* @param {Object} object The destination object.
* @param {...Object} sources The source objects.
* @param {Function} customizer The function to customize assigned values.
* @returns {Object} Returns `object`.
* @example
*
* function customizer(objValue, srcValue) {
* if (_.isArray(objValue)) {
* return objValue.concat(srcValue);
* }
* }
*
* var object = {
* 'fruits': ['apple'],
* 'vegetables': ['beet']
* };
*
* var other = {
* 'fruits': ['banana'],
* 'vegetables': ['carrot']
* };
*
* _.mergeWith(object, other, customizer);
* // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot'] }
*/
var mergeWith = createAssigner(function(object, source, srcIndex, customizer) {
baseMerge(object, source, srcIndex, customizer);
});
/**
* The opposite of `_.pick`; this method creates an object composed of the
* own and inherited enumerable string keyed properties of `object` that are
* not omitted.
*
* @static
* @since 0.1.0
* @memberOf _
* @category Object
* @param {Object} object The source object.
* @param {...(string|string[])} [props] The property identifiers to omit.
* @returns {Object} Returns the new object.
* @example
*
* var object = { 'a': 1, 'b': '2', 'c': 3 };
*
* _.omit(object, ['a', 'c']);
* // => { 'b': '2' }
*/
var omit = rest(function(object, props) {
if (object == null) {
return {};
}
props = arrayMap(baseFlatten(props, 1), toKey);
return basePick(object, baseDifference(getAllKeysIn(object), props));
});
/**
* The opposite of `_.pickBy`; this method creates an object composed of
* the own and inherited enumerable string keyed properties of `object` that
* `predicate` doesn't return truthy for. The predicate is invoked with two
* arguments: (value, key).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Object
* @param {Object} object The source object.
* @param {Array|Function|Object|string} [predicate=_.identity]
* The function invoked per property.
* @returns {Object} Returns the new object.
* @example
*
* var object = { 'a': 1, 'b': '2', 'c': 3 };
*
* _.omitBy(object, _.isNumber);
* // => { 'b': '2' }
*/
function omitBy(object, predicate) {
predicate = getIteratee(predicate);
return basePickBy(object, function(value, key) {
return !predicate(value, key);
});
}
/**
* Creates an object composed of the picked `object` properties.
*
* @static
* @since 0.1.0
* @memberOf _
* @category Object
* @param {Object} object The source object.
* @param {...(string|string[])} [props] The property identifiers to pick.
* @returns {Object} Returns the new object.
* @example
*
* var object = { 'a': 1, 'b': '2', 'c': 3 };
*
* _.pick(object, ['a', 'c']);
* // => { 'a': 1, 'c': 3 }
*/
var pick = rest(function(object, props) {
return object == null ? {} : basePick(object, arrayMap(baseFlatten(props, 1), toKey));
});
/**
* Creates an object composed of the `object` properties `predicate` returns
* truthy for. The predicate is invoked with two arguments: (value, key).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Object
* @param {Object} object The source object.
* @param {Array|Function|Object|string} [predicate=_.identity]
* The function invoked per property.
* @returns {Object} Returns the new object.
* @example
*
* var object = { 'a': 1, 'b': '2', 'c': 3 };
*
* _.pickBy(object, _.isNumber);
* // => { 'a': 1, 'c': 3 }
*/
function pickBy(object, predicate) {
return object == null ? {} : basePickBy(object, getIteratee(predicate));
}
/**
* This method is like `_.get` except that if the resolved value is a
* function it's invoked with the `this` binding of its parent object and
* its result is returned.
*
* @static
* @since 0.1.0
* @memberOf _
* @category Object
* @param {Object} object The object to query.
* @param {Array|string} path The path of the property to resolve.
* @param {*} [defaultValue] The value returned for `undefined` resolved values.
* @returns {*} Returns the resolved value.
* @example
*
* var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };
*
* _.result(object, 'a[0].b.c1');
* // => 3
*
* _.result(object, 'a[0].b.c2');
* // => 4
*
* _.result(object, 'a[0].b.c3', 'default');
* // => 'default'
*
* _.result(object, 'a[0].b.c3', _.constant('default'));
* // => 'default'
*/
function result(object, path, defaultValue) {
path = isKey(path, object) ? [path] : castPath(path);
var index = -1,
length = path.length;
// Ensure the loop is entered when path is empty.
if (!length) {
object = undefined;
length = 1;
}
while (++index < length) {
var value = object == null ? undefined : object[toKey(path[index])];
if (value === undefined) {
index = length;
value = defaultValue;
}
object = isFunction(value) ? value.call(object) : value;
}
return object;
}
/**
* Sets the value at `path` of `object`. If a portion of `path` doesn't exist,
* it's created. Arrays are created for missing index properties while objects
* are created for all other missing properties. Use `_.setWith` to customize
* `path` creation.
*
* **Note:** This method mutates `object`.
*
* @static
* @memberOf _
* @since 3.7.0
* @category Object
* @param {Object} object The object to modify.
* @param {Array|string} path The path of the property to set.
* @param {*} value The value to set.
* @returns {Object} Returns `object`.
* @example
*
* var object = { 'a': [{ 'b': { 'c': 3 } }] };
*
* _.set(object, 'a[0].b.c', 4);
* console.log(object.a[0].b.c);
* // => 4
*
* _.set(object, ['x', '0', 'y', 'z'], 5);
* console.log(object.x[0].y.z);
* // => 5
*/
function set(object, path, value) {
return object == null ? object : baseSet(object, path, value);
}
/**
* This method is like `_.set` except that it accepts `customizer` which is
* invoked to produce the objects of `path`. If `customizer` returns `undefined`
* path creation is handled by the method instead. The `customizer` is invoked
* with three arguments: (nsValue, key, nsObject).
*
* **Note:** This method mutates `object`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Object
* @param {Object} object The object to modify.
* @param {Array|string} path The path of the property to set.
* @param {*} value The value to set.
* @param {Function} [customizer] The function to customize assigned values.
* @returns {Object} Returns `object`.
* @example
*
* var object = {};
*
* _.setWith(object, '[0][1]', 'a', Object);
* // => { '0': { '1': 'a' } }
*/
function setWith(object, path, value, customizer) {
customizer = typeof customizer == 'function' ? customizer : undefined;
return object == null ? object : baseSet(object, path, value, customizer);
}
/**
* Creates an array of own enumerable string keyed-value pairs for `object`
* which can be consumed by `_.fromPairs`. If `object` is a map or set, its
* entries are returned.
*
* @static
* @memberOf _
* @since 4.0.0
* @alias entries
* @category Object
* @param {Object} object The object to query.
* @returns {Array} Returns the key-value pairs.
* @example
*
* function Foo() {
* this.a = 1;
* this.b = 2;
* }
*
* Foo.prototype.c = 3;
*
* _.toPairs(new Foo);
* // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)
*/
var toPairs = createToPairs(keys);
/**
* Creates an array of own and inherited enumerable string keyed-value pairs
* for `object` which can be consumed by `_.fromPairs`. If `object` is a map
* or set, its entries are returned.
*
* @static
* @memberOf _
* @since 4.0.0
* @alias entriesIn
* @category Object
* @param {Object} object The object to query.
* @returns {Array} Returns the key-value pairs.
* @example
*
* function Foo() {
* this.a = 1;
* this.b = 2;
* }
*
* Foo.prototype.c = 3;
*
* _.toPairsIn(new Foo);
* // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)
*/
var toPairsIn = createToPairs(keysIn);
/**
* An alternative to `_.reduce`; this method transforms `object` to a new
* `accumulator` object which is the result of running each of its own
* enumerable string keyed properties thru `iteratee`, with each invocation
* potentially mutating the `accumulator` object. If `accumulator` is not
* provided, a new object with the same `[[Prototype]]` will be used. The
* iteratee is invoked with four arguments: (accumulator, value, key, object).
* Iteratee functions may exit iteration early by explicitly returning `false`.
*
* @static
* @memberOf _
* @since 1.3.0
* @category Object
* @param {Object} object The object to iterate over.
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
* @param {*} [accumulator] The custom accumulator value.
* @returns {*} Returns the accumulated value.
* @example
*
* _.transform([2, 3, 4], function(result, n) {
* result.push(n *= n);
* return n % 2 == 0;
* }, []);
* // => [4, 9]
*
* _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
* (result[value] || (result[value] = [])).push(key);
* }, {});
* // => { '1': ['a', 'c'], '2': ['b'] }
*/
function transform(object, iteratee, accumulator) {
var isArr = isArray(object) || isTypedArray(object);
iteratee = getIteratee(iteratee, 4);
if (accumulator == null) {
if (isArr || isObject(object)) {
var Ctor = object.constructor;
if (isArr) {
accumulator = isArray(object) ? new Ctor : [];
} else {
accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};
}
} else {
accumulator = {};
}
}
(isArr ? arrayEach : baseForOwn)(object, function(value, index, object) {
return iteratee(accumulator, value, index, object);
});
return accumulator;
}
/**
* Removes the property at `path` of `object`.
*
* **Note:** This method mutates `object`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Object
* @param {Object} object The object to modify.
* @param {Array|string} path The path of the property to unset.
* @returns {boolean} Returns `true` if the property is deleted, else `false`.
* @example
*
* var object = { 'a': [{ 'b': { 'c': 7 } }] };
* _.unset(object, 'a[0].b.c');
* // => true
*
* console.log(object);
* // => { 'a': [{ 'b': {} }] };
*
* _.unset(object, ['a', '0', 'b', 'c']);
* // => true
*
* console.log(object);
* // => { 'a': [{ 'b': {} }] };
*/
function unset(object, path) {
return object == null ? true : baseUnset(object, path);
}
/**
* This method is like `_.set` except that accepts `updater` to produce the
* value to set. Use `_.updateWith` to customize `path` creation. The `updater`
* is invoked with one argument: (value).
*
* **Note:** This method mutates `object`.
*
* @static
* @memberOf _
* @since 4.6.0
* @category Object
* @param {Object} object The object to modify.
* @param {Array|string} path The path of the property to set.
* @param {Function} updater The function to produce the updated value.
* @returns {Object} Returns `object`.
* @example
*
* var object = { 'a': [{ 'b': { 'c': 3 } }] };
*
* _.update(object, 'a[0].b.c', function(n) { return n * n; });
* console.log(object.a[0].b.c);
* // => 9
*
* _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });
* console.log(object.x[0].y.z);
* // => 0
*/
function update(object, path, updater) {
return object == null ? object : baseUpdate(object, path, castFunction(updater));
}
/**
* This method is like `_.update` except that it accepts `customizer` which is
* invoked to produce the objects of `path`. If `customizer` returns `undefined`
* path creation is handled by the method instead. The `customizer` is invoked
* with three arguments: (nsValue, key, nsObject).
*
* **Note:** This method mutates `object`.
*
* @static
* @memberOf _
* @since 4.6.0
* @category Object
* @param {Object} object The object to modify.
* @param {Array|string} path The path of the property to set.
* @param {Function} updater The function to produce the updated value.
* @param {Function} [customizer] The function to customize assigned values.
* @returns {Object} Returns `object`.
* @example
*
* var object = {};
*
* _.updateWith(object, '[0][1]', _.constant('a'), Object);
* // => { '0': { '1': 'a' } }
*/
function updateWith(object, path, updater, customizer) {
customizer = typeof customizer == 'function' ? customizer : undefined;
return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);
}
/**
* Creates an array of the own enumerable string keyed property values of `object`.
*
* **Note:** Non-object values are coerced to objects.
*
* @static
* @since 0.1.0
* @memberOf _
* @category Object
* @param {Object} object The object to query.
* @returns {Array} Returns the array of property values.
* @example
*
* function Foo() {
* this.a = 1;
* this.b = 2;
* }
*
* Foo.prototype.c = 3;
*
* _.values(new Foo);
* // => [1, 2] (iteration order is not guaranteed)
*
* _.values('hi');
* // => ['h', 'i']
*/
function values(object) {
return object ? baseValues(object, keys(object)) : [];
}
/**
* Creates an array of the own and inherited enumerable string keyed property
* values of `object`.
*
* **Note:** Non-object values are coerced to objects.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Object
* @param {Object} object The object to query.
* @returns {Array} Returns the array of property values.
* @example
*
* function Foo() {
* this.a = 1;
* this.b = 2;
* }
*
* Foo.prototype.c = 3;
*
* _.valuesIn(new Foo);
* // => [1, 2, 3] (iteration order is not guaranteed)
*/
function valuesIn(object) {
return object == null ? [] : baseValues(object, keysIn(object));
}
/*------------------------------------------------------------------------*/
/**
* Clamps `number` within the inclusive `lower` and `upper` bounds.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Number
* @param {number} number The number to clamp.
* @param {number} [lower] The lower bound.
* @param {number} upper The upper bound.
* @returns {number} Returns the clamped number.
* @example
*
* _.clamp(-10, -5, 5);
* // => -5
*
* _.clamp(10, -5, 5);
* // => 5
*/
function clamp(number, lower, upper) {
if (upper === undefined) {
upper = lower;
lower = undefined;
}
if (upper !== undefined) {
upper = toNumber(upper);
upper = upper === upper ? upper : 0;
}
if (lower !== undefined) {
lower = toNumber(lower);
lower = lower === lower ? lower : 0;
}
return baseClamp(toNumber(number), lower, upper);
}
/**
* Checks if `n` is between `start` and up to, but not including, `end`. If
* `end` is not specified, it's set to `start` with `start` then set to `0`.
* If `start` is greater than `end` the params are swapped to support
* negative ranges.
*
* @static
* @memberOf _
* @since 3.3.0
* @category Number
* @param {number} number The number to check.
* @param {number} [start=0] The start of the range.
* @param {number} end The end of the range.
* @returns {boolean} Returns `true` if `number` is in the range, else `false`.
* @see _.range, _.rangeRight
* @example
*
* _.inRange(3, 2, 4);
* // => true
*
* _.inRange(4, 8);
* // => true
*
* _.inRange(4, 2);
* // => false
*
* _.inRange(2, 2);
* // => false
*
* _.inRange(1.2, 2);
* // => true
*
* _.inRange(5.2, 4);
* // => false
*
* _.inRange(-3, -2, -6);
* // => true
*/
function inRange(number, start, end) {
start = toNumber(start) || 0;
if (end === undefined) {
end = start;
start = 0;
} else {
end = toNumber(end) || 0;
}
number = toNumber(number);
return baseInRange(number, start, end);
}
/**
* Produces a random number between the inclusive `lower` and `upper` bounds.
* If only one argument is provided a number between `0` and the given number
* is returned. If `floating` is `true`, or either `lower` or `upper` are
* floats, a floating-point number is returned instead of an integer.
*
* **Note:** JavaScript follows the IEEE-754 standard for resolving
* floating-point values which can produce unexpected results.
*
* @static
* @memberOf _
* @since 0.7.0
* @category Number
* @param {number} [lower=0] The lower bound.
* @param {number} [upper=1] The upper bound.
* @param {boolean} [floating] Specify returning a floating-point number.
* @returns {number} Returns the random number.
* @example
*
* _.random(0, 5);
* // => an integer between 0 and 5
*
* _.random(5);
* // => also an integer between 0 and 5
*
* _.random(5, true);
* // => a floating-point number between 0 and 5
*
* _.random(1.2, 5.2);
* // => a floating-point number between 1.2 and 5.2
*/
function random(lower, upper, floating) {
if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) {
upper = floating = undefined;
}
if (floating === undefined) {
if (typeof upper == 'boolean') {
floating = upper;
upper = undefined;
}
else if (typeof lower == 'boolean') {
floating = lower;
lower = undefined;
}
}
if (lower === undefined && upper === undefined) {
lower = 0;
upper = 1;
}
else {
lower = toNumber(lower) || 0;
if (upper === undefined) {
upper = lower;
lower = 0;
} else {
upper = toNumber(upper) || 0;
}
}
if (lower > upper) {
var temp = lower;
lower = upper;
upper = temp;
}
if (floating || lower % 1 || upper % 1) {
var rand = nativeRandom();
return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper);
}
return baseRandom(lower, upper);
}
/*------------------------------------------------------------------------*/
/**
* Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).
*
* @static
* @memberOf _
* @since 3.0.0
* @category String
* @param {string} [string=''] The string to convert.
* @returns {string} Returns the camel cased string.
* @example
*
* _.camelCase('Foo Bar');
* // => 'fooBar'
*
* _.camelCase('--foo-bar--');
* // => 'fooBar'
*
* _.camelCase('__FOO_BAR__');
* // => 'fooBar'
*/
var camelCase = createCompounder(function(result, word, index) {
word = word.toLowerCase();
return result + (index ? capitalize(word) : word);
});
/**
* Converts the first character of `string` to upper case and the remaining
* to lower case.
*
* @static
* @memberOf _
* @since 3.0.0
* @category String
* @param {string} [string=''] The string to capitalize.
* @returns {string} Returns the capitalized string.
* @example
*
* _.capitalize('FRED');
* // => 'Fred'
*/
function capitalize(string) {
return upperFirst(toString(string).toLowerCase());
}
/**
* Deburrs `string` by converting
* [latin-1 supplementary letters](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)
* to basic latin letters and removing
* [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).
*
* @static
* @memberOf _
* @since 3.0.0
* @category String
* @param {string} [string=''] The string to deburr.
* @returns {string} Returns the deburred string.
* @example
*
* _.deburr('déjà vu');
* // => 'deja vu'
*/
function deburr(string) {
string = toString(string);
return string && string.replace(reLatin1, deburrLetter).replace(reComboMark, '');
}
/**
* Checks if `string` ends with the given target string.
*
* @static
* @memberOf _
* @since 3.0.0
* @category String
* @param {string} [string=''] The string to search.
* @param {string} [target] The string to search for.
* @param {number} [position=string.length] The position to search up to.
* @returns {boolean} Returns `true` if `string` ends with `target`,
* else `false`.
* @example
*
* _.endsWith('abc', 'c');
* // => true
*
* _.endsWith('abc', 'b');
* // => false
*
* _.endsWith('abc', 'b', 2);
* // => true
*/
function endsWith(string, target, position) {
string = toString(string);
target = baseToString(target);
var length = string.length;
position = position === undefined
? length
: baseClamp(toInteger(position), 0, length);
position -= target.length;
return position >= 0 && string.indexOf(target, position) == position;
}
/**
* Converts the characters "&", "<", ">", '"', "'", and "\`" in `string` to
* their corresponding HTML entities.
*
* **Note:** No other characters are escaped. To escape additional
* characters use a third-party library like [_he_](https://mths.be/he).
*
* Though the ">" character is escaped for symmetry, characters like
* ">" and "/" don't need escaping in HTML and have no special meaning
* unless they're part of a tag or unquoted attribute value. See
* [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)
* (under "semi-related fun fact") for more details.
*
* Backticks are escaped because in IE < 9, they can break out of
* attribute values or HTML comments. See [#59](https://html5sec.org/#59),
* [#102](https://html5sec.org/#102), [#108](https://html5sec.org/#108), and
* [#133](https://html5sec.org/#133) of the
* [HTML5 Security Cheatsheet](https://html5sec.org/) for more details.
*
* When working with HTML you should always
* [quote attribute values](http://wonko.com/post/html-escaping) to reduce
* XSS vectors.
*
* @static
* @since 0.1.0
* @memberOf _
* @category String
* @param {string} [string=''] The string to escape.
* @returns {string} Returns the escaped string.
* @example
*
* _.escape('fred, barney, & pebbles');
* // => 'fred, barney, & pebbles'
*/
function escape(string) {
string = toString(string);
return (string && reHasUnescapedHtml.test(string))
? string.replace(reUnescapedHtml, escapeHtmlChar)
: string;
}
/**
* Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+",
* "?", "(", ")", "[", "]", "{", "}", and "|" in `string`.
*
* @static
* @memberOf _
* @since 3.0.0
* @category String
* @param {string} [string=''] The string to escape.
* @returns {string} Returns the escaped string.
* @example
*
* _.escapeRegExp('[lodash](https://lodash.com/)');
* // => '\[lodash\]\(https://lodash\.com/\)'
*/
function escapeRegExp(string) {
string = toString(string);
return (string && reHasRegExpChar.test(string))
? string.replace(reRegExpChar, '\\$&')
: string;
}
/**
* Converts `string` to
* [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).
*
* @static
* @memberOf _
* @since 3.0.0
* @category String
* @param {string} [string=''] The string to convert.
* @returns {string} Returns the kebab cased string.
* @example
*
* _.kebabCase('Foo Bar');
* // => 'foo-bar'
*
* _.kebabCase('fooBar');
* // => 'foo-bar'
*
* _.kebabCase('__FOO_BAR__');
* // => 'foo-bar'
*/
var kebabCase = createCompounder(function(result, word, index) {
return result + (index ? '-' : '') + word.toLowerCase();
});
/**
* Converts `string`, as space separated words, to lower case.
*
* @static
* @memberOf _
* @since 4.0.0
* @category String
* @param {string} [string=''] The string to convert.
* @returns {string} Returns the lower cased string.
* @example
*
* _.lowerCase('--Foo-Bar--');
* // => 'foo bar'
*
* _.lowerCase('fooBar');
* // => 'foo bar'
*
* _.lowerCase('__FOO_BAR__');
* // => 'foo bar'
*/
var lowerCase = createCompounder(function(result, word, index) {
return result + (index ? ' ' : '') + word.toLowerCase();
});
/**
* Converts the first character of `string` to lower case.
*
* @static
* @memberOf _
* @since 4.0.0
* @category String
* @param {string} [string=''] The string to convert.
* @returns {string} Returns the converted string.
* @example
*
* _.lowerFirst('Fred');
* // => 'fred'
*
* _.lowerFirst('FRED');
* // => 'fRED'
*/
var lowerFirst = createCaseFirst('toLowerCase');
/**
* Pads `string` on the left and right sides if it's shorter than `length`.
* Padding characters are truncated if they can't be evenly divided by `length`.
*
* @static
* @memberOf _
* @since 3.0.0
* @category String
* @param {string} [string=''] The string to pad.
* @param {number} [length=0] The padding length.
* @param {string} [chars=' '] The string used as padding.
* @returns {string} Returns the padded string.
* @example
*
* _.pad('abc', 8);
* // => ' abc '
*
* _.pad('abc', 8, '_-');
* // => '_-abc_-_'
*
* _.pad('abc', 3);
* // => 'abc'
*/
function pad(string, length, chars) {
string = toString(string);
length = toInteger(length);
var strLength = length ? stringSize(string) : 0;
if (!length || strLength >= length) {
return string;
}
var mid = (length - strLength) / 2;
return (
createPadding(nativeFloor(mid), chars) +
string +
createPadding(nativeCeil(mid), chars)
);
}
/**
* Pads `string` on the right side if it's shorter than `length`. Padding
* characters are truncated if they exceed `length`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category String
* @param {string} [string=''] The string to pad.
* @param {number} [length=0] The padding length.
* @param {string} [chars=' '] The string used as padding.
* @returns {string} Returns the padded string.
* @example
*
* _.padEnd('abc', 6);
* // => 'abc '
*
* _.padEnd('abc', 6, '_-');
* // => 'abc_-_'
*
* _.padEnd('abc', 3);
* // => 'abc'
*/
function padEnd(string, length, chars) {
string = toString(string);
length = toInteger(length);
var strLength = length ? stringSize(string) : 0;
return (length && strLength < length)
? (string + createPadding(length - strLength, chars))
: string;
}
/**
* Pads `string` on the left side if it's shorter than `length`. Padding
* characters are truncated if they exceed `length`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category String
* @param {string} [string=''] The string to pad.
* @param {number} [length=0] The padding length.
* @param {string} [chars=' '] The string used as padding.
* @returns {string} Returns the padded string.
* @example
*
* _.padStart('abc', 6);
* // => ' abc'
*
* _.padStart('abc', 6, '_-');
* // => '_-_abc'
*
* _.padStart('abc', 3);
* // => 'abc'
*/
function padStart(string, length, chars) {
string = toString(string);
length = toInteger(length);
var strLength = length ? stringSize(string) : 0;
return (length && strLength < length)
? (createPadding(length - strLength, chars) + string)
: string;
}
/**
* Converts `string` to an integer of the specified radix. If `radix` is
* `undefined` or `0`, a `radix` of `10` is used unless `value` is a
* hexadecimal, in which case a `radix` of `16` is used.
*
* **Note:** This method aligns with the
* [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.
*
* @static
* @memberOf _
* @since 1.1.0
* @category String
* @param {string} string The string to convert.
* @param {number} [radix=10] The radix to interpret `value` by.
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
* @returns {number} Returns the converted integer.
* @example
*
* _.parseInt('08');
* // => 8
*
* _.map(['6', '08', '10'], _.parseInt);
* // => [6, 8, 10]
*/
function parseInt(string, radix, guard) {
// Chrome fails to trim leading <BOM> whitespace characters.
// See https://bugs.chromium.org/p/v8/issues/detail?id=3109 for more details.
if (guard || radix == null) {
radix = 0;
} else if (radix) {
radix = +radix;
}
string = toString(string).replace(reTrim, '');
return nativeParseInt(string, radix || (reHasHexPrefix.test(string) ? 16 : 10));
}
/**
* Repeats the given string `n` times.
*
* @static
* @memberOf _
* @since 3.0.0
* @category String
* @param {string} [string=''] The string to repeat.
* @param {number} [n=1] The number of times to repeat the string.
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
* @returns {string} Returns the repeated string.
* @example
*
* _.repeat('*', 3);
* // => '***'
*
* _.repeat('abc', 2);
* // => 'abcabc'
*
* _.repeat('abc', 0);
* // => ''
*/
function repeat(string, n, guard) {
if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) {
n = 1;
} else {
n = toInteger(n);
}
return baseRepeat(toString(string), n);
}
/**
* Replaces matches for `pattern` in `string` with `replacement`.
*
* **Note:** This method is based on
* [`String#replace`](https://mdn.io/String/replace).
*
* @static
* @memberOf _
* @since 4.0.0
* @category String
* @param {string} [string=''] The string to modify.
* @param {RegExp|string} pattern The pattern to replace.
* @param {Function|string} replacement The match replacement.
* @returns {string} Returns the modified string.
* @example
*
* _.replace('Hi Fred', 'Fred', 'Barney');
* // => 'Hi Barney'
*/
function replace() {
var args = arguments,
string = toString(args[0]);
return args.length < 3 ? string : nativeReplace.call(string, args[1], args[2]);
}
/**
* Converts `string` to
* [snake case](https://en.wikipedia.org/wiki/Snake_case).
*
* @static
* @memberOf _
* @since 3.0.0
* @category String
* @param {string} [string=''] The string to convert.
* @returns {string} Returns the snake cased string.
* @example
*
* _.snakeCase('Foo Bar');
* // => 'foo_bar'
*
* _.snakeCase('fooBar');
* // => 'foo_bar'
*
* _.snakeCase('--FOO-BAR--');
* // => 'foo_bar'
*/
var snakeCase = createCompounder(function(result, word, index) {
return result + (index ? '_' : '') + word.toLowerCase();
});
/**
* Splits `string` by `separator`.
*
* **Note:** This method is based on
* [`String#split`](https://mdn.io/String/split).
*
* @static
* @memberOf _
* @since 4.0.0
* @category String
* @param {string} [string=''] The string to split.
* @param {RegExp|string} separator The separator pattern to split by.
* @param {number} [limit] The length to truncate results to.
* @returns {Array} Returns the string segments.
* @example
*
* _.split('a-b-c', '-', 2);
* // => ['a', 'b']
*/
function split(string, separator, limit) {
if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {
separator = limit = undefined;
}
limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;
if (!limit) {
return [];
}
string = toString(string);
if (string && (
typeof separator == 'string' ||
(separator != null && !isRegExp(separator))
)) {
separator = baseToString(separator);
if (separator == '' && reHasComplexSymbol.test(string)) {
return castSlice(stringToArray(string), 0, limit);
}
}
return nativeSplit.call(string, separator, limit);
}
/**
* Converts `string` to
* [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).
*
* @static
* @memberOf _
* @since 3.1.0
* @category String
* @param {string} [string=''] The string to convert.
* @returns {string} Returns the start cased string.
* @example
*
* _.startCase('--foo-bar--');
* // => 'Foo Bar'
*
* _.startCase('fooBar');
* // => 'Foo Bar'
*
* _.startCase('__FOO_BAR__');
* // => 'FOO BAR'
*/
var startCase = createCompounder(function(result, word, index) {
return result + (index ? ' ' : '') + upperFirst(word);
});
/**
* Checks if `string` starts with the given target string.
*
* @static
* @memberOf _
* @since 3.0.0
* @category String
* @param {string} [string=''] The string to search.
* @param {string} [target] The string to search for.
* @param {number} [position=0] The position to search from.
* @returns {boolean} Returns `true` if `string` starts with `target`,
* else `false`.
* @example
*
* _.startsWith('abc', 'a');
* // => true
*
* _.startsWith('abc', 'b');
* // => false
*
* _.startsWith('abc', 'b', 1);
* // => true
*/
function startsWith(string, target, position) {
string = toString(string);
position = baseClamp(toInteger(position), 0, string.length);
return string.lastIndexOf(baseToString(target), position) == position;
}
/**
* Creates a compiled template function that can interpolate data properties
* in "interpolate" delimiters, HTML-escape interpolated data properties in
* "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data
* properties may be accessed as free variables in the template. If a setting
* object is given, it takes precedence over `_.templateSettings` values.
*
* **Note:** In the development build `_.template` utilizes
* [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)
* for easier debugging.
*
* For more information on precompiling templates see
* [lodash's custom builds documentation](https://lodash.com/custom-builds).
*
* For more information on Chrome extension sandboxes see
* [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).
*
* @static
* @since 0.1.0
* @memberOf _
* @category String
* @param {string} [string=''] The template string.
* @param {Object} [options={}] The options object.
* @param {RegExp} [options.escape=_.templateSettings.escape]
* The HTML "escape" delimiter.
* @param {RegExp} [options.evaluate=_.templateSettings.evaluate]
* The "evaluate" delimiter.
* @param {Object} [options.imports=_.templateSettings.imports]
* An object to import into the template as free variables.
* @param {RegExp} [options.interpolate=_.templateSettings.interpolate]
* The "interpolate" delimiter.
* @param {string} [options.sourceURL='lodash.templateSources[n]']
* The sourceURL of the compiled template.
* @param {string} [options.variable='obj']
* The data object variable name.
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
* @returns {Function} Returns the compiled template function.
* @example
*
* // Use the "interpolate" delimiter to create a compiled template.
* var compiled = _.template('hello <%= user %>!');
* compiled({ 'user': 'fred' });
* // => 'hello fred!'
*
* // Use the HTML "escape" delimiter to escape data property values.
* var compiled = _.template('<b><%- value %></b>');
* compiled({ 'value': '<script>' });
* // => '<b><script></b>'
*
* // Use the "evaluate" delimiter to execute JavaScript and generate HTML.
* var compiled = _.template('<% _.forEach(users, function(user) { %><li><%- user %></li><% }); %>');
* compiled({ 'users': ['fred', 'barney'] });
* // => '<li>fred</li><li>barney</li>'
*
* // Use the internal `print` function in "evaluate" delimiters.
* var compiled = _.template('<% print("hello " + user); %>!');
* compiled({ 'user': 'barney' });
* // => 'hello barney!'
*
* // Use the ES delimiter as an alternative to the default "interpolate" delimiter.
* var compiled = _.template('hello ${ user }!');
* compiled({ 'user': 'pebbles' });
* // => 'hello pebbles!'
*
* // Use backslashes to treat delimiters as plain text.
* var compiled = _.template('<%= "\\<%- value %\\>" %>');
* compiled({ 'value': 'ignored' });
* // => '<%- value %>'
*
* // Use the `imports` option to import `jQuery` as `jq`.
* var text = '<% jq.each(users, function(user) { %><li><%- user %></li><% }); %>';
* var compiled = _.template(text, { 'imports': { 'jq': jQuery } });
* compiled({ 'users': ['fred', 'barney'] });
* // => '<li>fred</li><li>barney</li>'
*
* // Use the `sourceURL` option to specify a custom sourceURL for the template.
* var compiled = _.template('hello <%= user %>!', { 'sourceURL': '/basic/greeting.jst' });
* compiled(data);
* // => Find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector.
*
* // Use the `variable` option to ensure a with-statement isn't used in the compiled template.
* var compiled = _.template('hi <%= data.user %>!', { 'variable': 'data' });
* compiled.source;
* // => function(data) {
* // var __t, __p = '';
* // __p += 'hi ' + ((__t = ( data.user )) == null ? '' : __t) + '!';
* // return __p;
* // }
*
* // Use custom template delimiters.
* _.templateSettings.interpolate = /{{([\s\S]+?)}}/g;
* var compiled = _.template('hello {{ user }}!');
* compiled({ 'user': 'mustache' });
* // => 'hello mustache!'
*
* // Use the `source` property to inline compiled templates for meaningful
* // line numbers in error messages and stack traces.
* fs.writeFileSync(path.join(process.cwd(), 'jst.js'), '\
* var JST = {\
* "main": ' + _.template(mainText).source + '\
* };\
* ');
*/
function template(string, options, guard) {
// Based on John Resig's `tmpl` implementation
// (http://ejohn.org/blog/javascript-micro-templating/)
// and Laura Doktorova's doT.js (https://github.com/olado/doT).
var settings = lodash.templateSettings;
if (guard && isIterateeCall(string, options, guard)) {
options = undefined;
}
string = toString(string);
options = assignInWith({}, options, settings, assignInDefaults);
var imports = assignInWith({}, options.imports, settings.imports, assignInDefaults),
importsKeys = keys(imports),
importsValues = baseValues(imports, importsKeys);
var isEscaping,
isEvaluating,
index = 0,
interpolate = options.interpolate || reNoMatch,
source = "__p += '";
// Compile the regexp to match each delimiter.
var reDelimiters = RegExp(
(options.escape || reNoMatch).source + '|' +
interpolate.source + '|' +
(interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' +
(options.evaluate || reNoMatch).source + '|$'
, 'g');
// Use a sourceURL for easier debugging.
var sourceURL = '//# sourceURL=' +
('sourceURL' in options
? options.sourceURL
: ('lodash.templateSources[' + (++templateCounter) + ']')
) + '\n';
string.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {
interpolateValue || (interpolateValue = esTemplateValue);
// Escape characters that can't be included in string literals.
source += string.slice(index, offset).replace(reUnescapedString, escapeStringChar);
// Replace delimiters with snippets.
if (escapeValue) {
isEscaping = true;
source += "' +\n__e(" + escapeValue + ") +\n'";
}
if (evaluateValue) {
isEvaluating = true;
source += "';\n" + evaluateValue + ";\n__p += '";
}
if (interpolateValue) {
source += "' +\n((__t = (" + interpolateValue + ")) == null ? '' : __t) +\n'";
}
index = offset + match.length;
// The JS engine embedded in Adobe products needs `match` returned in
// order to produce the correct `offset` value.
return match;
});
source += "';\n";
// If `variable` is not specified wrap a with-statement around the generated
// code to add the data object to the top of the scope chain.
var variable = options.variable;
if (!variable) {
source = 'with (obj) {\n' + source + '\n}\n';
}
// Cleanup code by stripping empty strings.
source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source)
.replace(reEmptyStringMiddle, '$1')
.replace(reEmptyStringTrailing, '$1;');
// Frame code as the function body.
source = 'function(' + (variable || 'obj') + ') {\n' +
(variable
? ''
: 'obj || (obj = {});\n'
) +
"var __t, __p = ''" +
(isEscaping
? ', __e = _.escape'
: ''
) +
(isEvaluating
? ', __j = Array.prototype.join;\n' +
"function print() { __p += __j.call(arguments, '') }\n"
: ';\n'
) +
source +
'return __p\n}';
var result = attempt(function() {
return Function(importsKeys, sourceURL + 'return ' + source)
.apply(undefined, importsValues);
});
// Provide the compiled function's source by its `toString` method or
// the `source` property as a convenience for inlining compiled templates.
result.source = source;
if (isError(result)) {
throw result;
}
return result;
}
/**
* Converts `string`, as a whole, to lower case just like
* [String#toLowerCase](https://mdn.io/toLowerCase).
*
* @static
* @memberOf _
* @since 4.0.0
* @category String
* @param {string} [string=''] The string to convert.
* @returns {string} Returns the lower cased string.
* @example
*
* _.toLower('--Foo-Bar--');
* // => '--foo-bar--'
*
* _.toLower('fooBar');
* // => 'foobar'
*
* _.toLower('__FOO_BAR__');
* // => '__foo_bar__'
*/
function toLower(value) {
return toString(value).toLowerCase();
}
/**
* Converts `string`, as a whole, to upper case just like
* [String#toUpperCase](https://mdn.io/toUpperCase).
*
* @static
* @memberOf _
* @since 4.0.0
* @category String
* @param {string} [string=''] The string to convert.
* @returns {string} Returns the upper cased string.
* @example
*
* _.toUpper('--foo-bar--');
* // => '--FOO-BAR--'
*
* _.toUpper('fooBar');
* // => 'FOOBAR'
*
* _.toUpper('__foo_bar__');
* // => '__FOO_BAR__'
*/
function toUpper(value) {
return toString(value).toUpperCase();
}
/**
* Removes leading and trailing whitespace or specified characters from `string`.
*
* @static
* @memberOf _
* @since 3.0.0
* @category String
* @param {string} [string=''] The string to trim.
* @param {string} [chars=whitespace] The characters to trim.
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
* @returns {string} Returns the trimmed string.
* @example
*
* _.trim(' abc ');
* // => 'abc'
*
* _.trim('-_-abc-_-', '_-');
* // => 'abc'
*
* _.map([' foo ', ' bar '], _.trim);
* // => ['foo', 'bar']
*/
function trim(string, chars, guard) {
string = toString(string);
if (string && (guard || chars === undefined)) {
return string.replace(reTrim, '');
}
if (!string || !(chars = baseToString(chars))) {
return string;
}
var strSymbols = stringToArray(string),
chrSymbols = stringToArray(chars),
start = charsStartIndex(strSymbols, chrSymbols),
end = charsEndIndex(strSymbols, chrSymbols) + 1;
return castSlice(strSymbols, start, end).join('');
}
/**
* Removes trailing whitespace or specified characters from `string`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category String
* @param {string} [string=''] The string to trim.
* @param {string} [chars=whitespace] The characters to trim.
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
* @returns {string} Returns the trimmed string.
* @example
*
* _.trimEnd(' abc ');
* // => ' abc'
*
* _.trimEnd('-_-abc-_-', '_-');
* // => '-_-abc'
*/
function trimEnd(string, chars, guard) {
string = toString(string);
if (string && (guard || chars === undefined)) {
return string.replace(reTrimEnd, '');
}
if (!string || !(chars = baseToString(chars))) {
return string;
}
var strSymbols = stringToArray(string),
end = charsEndIndex(strSymbols, stringToArray(chars)) + 1;
return castSlice(strSymbols, 0, end).join('');
}
/**
* Removes leading whitespace or specified characters from `string`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category String
* @param {string} [string=''] The string to trim.
* @param {string} [chars=whitespace] The characters to trim.
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
* @returns {string} Returns the trimmed string.
* @example
*
* _.trimStart(' abc ');
* // => 'abc '
*
* _.trimStart('-_-abc-_-', '_-');
* // => 'abc-_-'
*/
function trimStart(string, chars, guard) {
string = toString(string);
if (string && (guard || chars === undefined)) {
return string.replace(reTrimStart, '');
}
if (!string || !(chars = baseToString(chars))) {
return string;
}
var strSymbols = stringToArray(string),
start = charsStartIndex(strSymbols, stringToArray(chars));
return castSlice(strSymbols, start).join('');
}
/**
* Truncates `string` if it's longer than the given maximum string length.
* The last characters of the truncated string are replaced with the omission
* string which defaults to "...".
*
* @static
* @memberOf _
* @since 4.0.0
* @category String
* @param {string} [string=''] The string to truncate.
* @param {Object} [options={}] The options object.
* @param {number} [options.length=30] The maximum string length.
* @param {string} [options.omission='...'] The string to indicate text is omitted.
* @param {RegExp|string} [options.separator] The separator pattern to truncate to.
* @returns {string} Returns the truncated string.
* @example
*
* _.truncate('hi-diddly-ho there, neighborino');
* // => 'hi-diddly-ho there, neighbo...'
*
* _.truncate('hi-diddly-ho there, neighborino', {
* 'length': 24,
* 'separator': ' '
* });
* // => 'hi-diddly-ho there,...'
*
* _.truncate('hi-diddly-ho there, neighborino', {
* 'length': 24,
* 'separator': /,? +/
* });
* // => 'hi-diddly-ho there...'
*
* _.truncate('hi-diddly-ho there, neighborino', {
* 'omission': ' [...]'
* });
* // => 'hi-diddly-ho there, neig [...]'
*/
function truncate(string, options) {
var length = DEFAULT_TRUNC_LENGTH,
omission = DEFAULT_TRUNC_OMISSION;
if (isObject(options)) {
var separator = 'separator' in options ? options.separator : separator;
length = 'length' in options ? toInteger(options.length) : length;
omission = 'omission' in options ? baseToString(options.omission) : omission;
}
string = toString(string);
var strLength = string.length;
if (reHasComplexSymbol.test(string)) {
var strSymbols = stringToArray(string);
strLength = strSymbols.length;
}
if (length >= strLength) {
return string;
}
var end = length - stringSize(omission);
if (end < 1) {
return omission;
}
var result = strSymbols
? castSlice(strSymbols, 0, end).join('')
: string.slice(0, end);
if (separator === undefined) {
return result + omission;
}
if (strSymbols) {
end += (result.length - end);
}
if (isRegExp(separator)) {
if (string.slice(end).search(separator)) {
var match,
substring = result;
if (!separator.global) {
separator = RegExp(separator.source, toString(reFlags.exec(separator)) + 'g');
}
separator.lastIndex = 0;
while ((match = separator.exec(substring))) {
var newEnd = match.index;
}
result = result.slice(0, newEnd === undefined ? end : newEnd);
}
} else if (string.indexOf(baseToString(separator), end) != end) {
var index = result.lastIndexOf(separator);
if (index > -1) {
result = result.slice(0, index);
}
}
return result + omission;
}
/**
* The inverse of `_.escape`; this method converts the HTML entities
* `&`, `<`, `>`, `"`, `'`, and ``` in `string` to
* their corresponding characters.
*
* **Note:** No other HTML entities are unescaped. To unescape additional
* HTML entities use a third-party library like [_he_](https://mths.be/he).
*
* @static
* @memberOf _
* @since 0.6.0
* @category String
* @param {string} [string=''] The string to unescape.
* @returns {string} Returns the unescaped string.
* @example
*
* _.unescape('fred, barney, & pebbles');
* // => 'fred, barney, & pebbles'
*/
function unescape(string) {
string = toString(string);
return (string && reHasEscapedHtml.test(string))
? string.replace(reEscapedHtml, unescapeHtmlChar)
: string;
}
/**
* Converts `string`, as space separated words, to upper case.
*
* @static
* @memberOf _
* @since 4.0.0
* @category String
* @param {string} [string=''] The string to convert.
* @returns {string} Returns the upper cased string.
* @example
*
* _.upperCase('--foo-bar');
* // => 'FOO BAR'
*
* _.upperCase('fooBar');
* // => 'FOO BAR'
*
* _.upperCase('__foo_bar__');
* // => 'FOO BAR'
*/
var upperCase = createCompounder(function(result, word, index) {
return result + (index ? ' ' : '') + word.toUpperCase();
});
/**
* Converts the first character of `string` to upper case.
*
* @static
* @memberOf _
* @since 4.0.0
* @category String
* @param {string} [string=''] The string to convert.
* @returns {string} Returns the converted string.
* @example
*
* _.upperFirst('fred');
* // => 'Fred'
*
* _.upperFirst('FRED');
* // => 'FRED'
*/
var upperFirst = createCaseFirst('toUpperCase');
/**
* Splits `string` into an array of its words.
*
* @static
* @memberOf _
* @since 3.0.0
* @category String
* @param {string} [string=''] The string to inspect.
* @param {RegExp|string} [pattern] The pattern to match words.
* @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
* @returns {Array} Returns the words of `string`.
* @example
*
* _.words('fred, barney, & pebbles');
* // => ['fred', 'barney', 'pebbles']
*
* _.words('fred, barney, & pebbles', /[^, ]+/g);
* // => ['fred', 'barney', '&', 'pebbles']
*/
function words(string, pattern, guard) {
string = toString(string);
pattern = guard ? undefined : pattern;
if (pattern === undefined) {
pattern = reHasComplexWord.test(string) ? reComplexWord : reBasicWord;
}
return string.match(pattern) || [];
}
/*------------------------------------------------------------------------*/
/**
* Attempts to invoke `func`, returning either the result or the caught error
* object. Any additional arguments are provided to `func` when it's invoked.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Util
* @param {Function} func The function to attempt.
* @param {...*} [args] The arguments to invoke `func` with.
* @returns {*} Returns the `func` result or error object.
* @example
*
* // Avoid throwing errors for invalid selectors.
* var elements = _.attempt(function(selector) {
* return document.querySelectorAll(selector);
* }, '>_>');
*
* if (_.isError(elements)) {
* elements = [];
* }
*/
var attempt = rest(function(func, args) {
try {
return apply(func, undefined, args);
} catch (e) {
return isError(e) ? e : new Error(e);
}
});
/**
* Binds methods of an object to the object itself, overwriting the existing
* method.
*
* **Note:** This method doesn't set the "length" property of bound functions.
*
* @static
* @since 0.1.0
* @memberOf _
* @category Util
* @param {Object} object The object to bind and assign the bound methods to.
* @param {...(string|string[])} methodNames The object method names to bind.
* @returns {Object} Returns `object`.
* @example
*
* var view = {
* 'label': 'docs',
* 'onClick': function() {
* console.log('clicked ' + this.label);
* }
* };
*
* _.bindAll(view, ['onClick']);
* jQuery(element).on('click', view.onClick);
* // => Logs 'clicked docs' when clicked.
*/
var bindAll = rest(function(object, methodNames) {
arrayEach(baseFlatten(methodNames, 1), function(key) {
key = toKey(key);
object[key] = bind(object[key], object);
});
return object;
});
/**
* Creates a function that iterates over `pairs` and invokes the corresponding
* function of the first predicate to return truthy. The predicate-function
* pairs are invoked with the `this` binding and arguments of the created
* function.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Util
* @param {Array} pairs The predicate-function pairs.
* @returns {Function} Returns the new composite function.
* @example
*
* var func = _.cond([
* [_.matches({ 'a': 1 }), _.constant('matches A')],
* [_.conforms({ 'b': _.isNumber }), _.constant('matches B')],
* [_.constant(true), _.constant('no match')]
* ]);
*
* func({ 'a': 1, 'b': 2 });
* // => 'matches A'
*
* func({ 'a': 0, 'b': 1 });
* // => 'matches B'
*
* func({ 'a': '1', 'b': '2' });
* // => 'no match'
*/
function cond(pairs) {
var length = pairs ? pairs.length : 0,
toIteratee = getIteratee();
pairs = !length ? [] : arrayMap(pairs, function(pair) {
if (typeof pair[1] != 'function') {
throw new TypeError(FUNC_ERROR_TEXT);
}
return [toIteratee(pair[0]), pair[1]];
});
return rest(function(args) {
var index = -1;
while (++index < length) {
var pair = pairs[index];
if (apply(pair[0], this, args)) {
return apply(pair[1], this, args);
}
}
});
}
/**
* Creates a function that invokes the predicate properties of `source` with
* the corresponding property values of a given object, returning `true` if
* all predicates return truthy, else `false`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Util
* @param {Object} source The object of property predicates to conform to.
* @returns {Function} Returns the new spec function.
* @example
*
* var users = [
* { 'user': 'barney', 'age': 36 },
* { 'user': 'fred', 'age': 40 }
* ];
*
* _.filter(users, _.conforms({ 'age': function(n) { return n > 38; } }));
* // => [{ 'user': 'fred', 'age': 40 }]
*/
function conforms(source) {
return baseConforms(baseClone(source, true));
}
/**
* Creates a function that returns `value`.
*
* @static
* @memberOf _
* @since 2.4.0
* @category Util
* @param {*} value The value to return from the new function.
* @returns {Function} Returns the new constant function.
* @example
*
* var objects = _.times(2, _.constant({ 'a': 1 }));
*
* console.log(objects);
* // => [{ 'a': 1 }, { 'a': 1 }]
*
* console.log(objects[0] === objects[1]);
* // => true
*/
function constant(value) {
return function() {
return value;
};
}
/**
* Creates a function that returns the result of invoking the given functions
* with the `this` binding of the created function, where each successive
* invocation is supplied the return value of the previous.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Util
* @param {...(Function|Function[])} [funcs] Functions to invoke.
* @returns {Function} Returns the new composite function.
* @see _.flowRight
* @example
*
* function square(n) {
* return n * n;
* }
*
* var addSquare = _.flow([_.add, square]);
* addSquare(1, 2);
* // => 9
*/
var flow = createFlow();
/**
* This method is like `_.flow` except that it creates a function that
* invokes the given functions from right to left.
*
* @static
* @since 3.0.0
* @memberOf _
* @category Util
* @param {...(Function|Function[])} [funcs] Functions to invoke.
* @returns {Function} Returns the new composite function.
* @see _.flow
* @example
*
* function square(n) {
* return n * n;
* }
*
* var addSquare = _.flowRight([square, _.add]);
* addSquare(1, 2);
* // => 9
*/
var flowRight = createFlow(true);
/**
* This method returns the first argument given to it.
*
* @static
* @since 0.1.0
* @memberOf _
* @category Util
* @param {*} value Any value.
* @returns {*} Returns `value`.
* @example
*
* var object = { 'user': 'fred' };
*
* console.log(_.identity(object) === object);
* // => true
*/
function identity(value) {
return value;
}
/**
* Creates a function that invokes `func` with the arguments of the created
* function. If `func` is a property name, the created function returns the
* property value for a given element. If `func` is an array or object, the
* created function returns `true` for elements that contain the equivalent
* source properties, otherwise it returns `false`.
*
* @static
* @since 4.0.0
* @memberOf _
* @category Util
* @param {*} [func=_.identity] The value to convert to a callback.
* @returns {Function} Returns the callback.
* @example
*
* var users = [
* { 'user': 'barney', 'age': 36, 'active': true },
* { 'user': 'fred', 'age': 40, 'active': false }
* ];
*
* // The `_.matches` iteratee shorthand.
* _.filter(users, _.iteratee({ 'user': 'barney', 'active': true }));
* // => [{ 'user': 'barney', 'age': 36, 'active': true }]
*
* // The `_.matchesProperty` iteratee shorthand.
* _.filter(users, _.iteratee(['user', 'fred']));
* // => [{ 'user': 'fred', 'age': 40 }]
*
* // The `_.property` iteratee shorthand.
* _.map(users, _.iteratee('user'));
* // => ['barney', 'fred']
*
* // Create custom iteratee shorthands.
* _.iteratee = _.wrap(_.iteratee, function(iteratee, func) {
* return !_.isRegExp(func) ? iteratee(func) : function(string) {
* return func.test(string);
* };
* });
*
* _.filter(['abc', 'def'], /ef/);
* // => ['def']
*/
function iteratee(func) {
return baseIteratee(typeof func == 'function' ? func : baseClone(func, true));
}
/**
* Creates a function that performs a partial deep comparison between a given
* object and `source`, returning `true` if the given object has equivalent
* property values, else `false`. The created function is equivalent to
* `_.isMatch` with a `source` partially applied.
*
* **Note:** This method supports comparing the same values as `_.isEqual`.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Util
* @param {Object} source The object of property values to match.
* @returns {Function} Returns the new spec function.
* @example
*
* var users = [
* { 'user': 'barney', 'age': 36, 'active': true },
* { 'user': 'fred', 'age': 40, 'active': false }
* ];
*
* _.filter(users, _.matches({ 'age': 40, 'active': false }));
* // => [{ 'user': 'fred', 'age': 40, 'active': false }]
*/
function matches(source) {
return baseMatches(baseClone(source, true));
}
/**
* Creates a function that performs a partial deep comparison between the
* value at `path` of a given object to `srcValue`, returning `true` if the
* object value is equivalent, else `false`.
*
* **Note:** This method supports comparing the same values as `_.isEqual`.
*
* @static
* @memberOf _
* @since 3.2.0
* @category Util
* @param {Array|string} path The path of the property to get.
* @param {*} srcValue The value to match.
* @returns {Function} Returns the new spec function.
* @example
*
* var users = [
* { 'user': 'barney' },
* { 'user': 'fred' }
* ];
*
* _.find(users, _.matchesProperty('user', 'fred'));
* // => { 'user': 'fred' }
*/
function matchesProperty(path, srcValue) {
return baseMatchesProperty(path, baseClone(srcValue, true));
}
/**
* Creates a function that invokes the method at `path` of a given object.
* Any additional arguments are provided to the invoked method.
*
* @static
* @memberOf _
* @since 3.7.0
* @category Util
* @param {Array|string} path The path of the method to invoke.
* @param {...*} [args] The arguments to invoke the method with.
* @returns {Function} Returns the new invoker function.
* @example
*
* var objects = [
* { 'a': { 'b': _.constant(2) } },
* { 'a': { 'b': _.constant(1) } }
* ];
*
* _.map(objects, _.method('a.b'));
* // => [2, 1]
*
* _.map(objects, _.method(['a', 'b']));
* // => [2, 1]
*/
var method = rest(function(path, args) {
return function(object) {
return baseInvoke(object, path, args);
};
});
/**
* The opposite of `_.method`; this method creates a function that invokes
* the method at a given path of `object`. Any additional arguments are
* provided to the invoked method.
*
* @static
* @memberOf _
* @since 3.7.0
* @category Util
* @param {Object} object The object to query.
* @param {...*} [args] The arguments to invoke the method with.
* @returns {Function} Returns the new invoker function.
* @example
*
* var array = _.times(3, _.constant),
* object = { 'a': array, 'b': array, 'c': array };
*
* _.map(['a[2]', 'c[0]'], _.methodOf(object));
* // => [2, 0]
*
* _.map([['a', '2'], ['c', '0']], _.methodOf(object));
* // => [2, 0]
*/
var methodOf = rest(function(object, args) {
return function(path) {
return baseInvoke(object, path, args);
};
});
/**
* Adds all own enumerable string keyed function properties of a source
* object to the destination object. If `object` is a function, then methods
* are added to its prototype as well.
*
* **Note:** Use `_.runInContext` to create a pristine `lodash` function to
* avoid conflicts caused by modifying the original.
*
* @static
* @since 0.1.0
* @memberOf _
* @category Util
* @param {Function|Object} [object=lodash] The destination object.
* @param {Object} source The object of functions to add.
* @param {Object} [options={}] The options object.
* @param {boolean} [options.chain=true] Specify whether mixins are chainable.
* @returns {Function|Object} Returns `object`.
* @example
*
* function vowels(string) {
* return _.filter(string, function(v) {
* return /[aeiou]/i.test(v);
* });
* }
*
* _.mixin({ 'vowels': vowels });
* _.vowels('fred');
* // => ['e']
*
* _('fred').vowels().value();
* // => ['e']
*
* _.mixin({ 'vowels': vowels }, { 'chain': false });
* _('fred').vowels();
* // => ['e']
*/
function mixin(object, source, options) {
var props = keys(source),
methodNames = baseFunctions(source, props);
if (options == null &&
!(isObject(source) && (methodNames.length || !props.length))) {
options = source;
source = object;
object = this;
methodNames = baseFunctions(source, keys(source));
}
var chain = !(isObject(options) && 'chain' in options) || !!options.chain,
isFunc = isFunction(object);
arrayEach(methodNames, function(methodName) {
var func = source[methodName];
object[methodName] = func;
if (isFunc) {
object.prototype[methodName] = function() {
var chainAll = this.__chain__;
if (chain || chainAll) {
var result = object(this.__wrapped__),
actions = result.__actions__ = copyArray(this.__actions__);
actions.push({ 'func': func, 'args': arguments, 'thisArg': object });
result.__chain__ = chainAll;
return result;
}
return func.apply(object, arrayPush([this.value()], arguments));
};
}
});
return object;
}
/**
* Reverts the `_` variable to its previous value and returns a reference to
* the `lodash` function.
*
* @static
* @since 0.1.0
* @memberOf _
* @category Util
* @returns {Function} Returns the `lodash` function.
* @example
*
* var lodash = _.noConflict();
*/
function noConflict() {
if (root._ === this) {
root._ = oldDash;
}
return this;
}
/**
* A method that returns `undefined`.
*
* @static
* @memberOf _
* @since 2.3.0
* @category Util
* @example
*
* _.times(2, _.noop);
* // => [undefined, undefined]
*/
function noop() {
// No operation performed.
}
/**
* Creates a function that gets the argument at index `n`. If `n` is negative,
* the nth argument from the end is returned.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Util
* @param {number} [n=0] The index of the argument to return.
* @returns {Function} Returns the new pass-thru function.
* @example
*
* var func = _.nthArg(1);
* func('a', 'b', 'c', 'd');
* // => 'b'
*
* var func = _.nthArg(-2);
* func('a', 'b', 'c', 'd');
* // => 'c'
*/
function nthArg(n) {
n = toInteger(n);
return rest(function(args) {
return baseNth(args, n);
});
}
/**
* Creates a function that invokes `iteratees` with the arguments it receives
* and returns their results.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Util
* @param {...(Array|Array[]|Function|Function[]|Object|Object[]|string|string[])}
* [iteratees=[_.identity]] The iteratees to invoke.
* @returns {Function} Returns the new function.
* @example
*
* var func = _.over([Math.max, Math.min]);
*
* func(1, 2, 3, 4);
* // => [4, 1]
*/
var over = createOver(arrayMap);
/**
* Creates a function that checks if **all** of the `predicates` return
* truthy when invoked with the arguments it receives.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Util
* @param {...(Array|Array[]|Function|Function[]|Object|Object[]|string|string[])}
* [predicates=[_.identity]] The predicates to check.
* @returns {Function} Returns the new function.
* @example
*
* var func = _.overEvery([Boolean, isFinite]);
*
* func('1');
* // => true
*
* func(null);
* // => false
*
* func(NaN);
* // => false
*/
var overEvery = createOver(arrayEvery);
/**
* Creates a function that checks if **any** of the `predicates` return
* truthy when invoked with the arguments it receives.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Util
* @param {...(Array|Array[]|Function|Function[]|Object|Object[]|string|string[])}
* [predicates=[_.identity]] The predicates to check.
* @returns {Function} Returns the new function.
* @example
*
* var func = _.overSome([Boolean, isFinite]);
*
* func('1');
* // => true
*
* func(null);
* // => true
*
* func(NaN);
* // => false
*/
var overSome = createOver(arraySome);
/**
* Creates a function that returns the value at `path` of a given object.
*
* @static
* @memberOf _
* @since 2.4.0
* @category Util
* @param {Array|string} path The path of the property to get.
* @returns {Function} Returns the new accessor function.
* @example
*
* var objects = [
* { 'a': { 'b': 2 } },
* { 'a': { 'b': 1 } }
* ];
*
* _.map(objects, _.property('a.b'));
* // => [2, 1]
*
* _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b');
* // => [1, 2]
*/
function property(path) {
return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path);
}
/**
* The opposite of `_.property`; this method creates a function that returns
* the value at a given path of `object`.
*
* @static
* @memberOf _
* @since 3.0.0
* @category Util
* @param {Object} object The object to query.
* @returns {Function} Returns the new accessor function.
* @example
*
* var array = [0, 1, 2],
* object = { 'a': array, 'b': array, 'c': array };
*
* _.map(['a[2]', 'c[0]'], _.propertyOf(object));
* // => [2, 0]
*
* _.map([['a', '2'], ['c', '0']], _.propertyOf(object));
* // => [2, 0]
*/
function propertyOf(object) {
return function(path) {
return object == null ? undefined : baseGet(object, path);
};
}
/**
* Creates an array of numbers (positive and/or negative) progressing from
* `start` up to, but not including, `end`. A step of `-1` is used if a negative
* `start` is specified without an `end` or `step`. If `end` is not specified,
* it's set to `start` with `start` then set to `0`.
*
* **Note:** JavaScript follows the IEEE-754 standard for resolving
* floating-point values which can produce unexpected results.
*
* @static
* @since 0.1.0
* @memberOf _
* @category Util
* @param {number} [start=0] The start of the range.
* @param {number} end The end of the range.
* @param {number} [step=1] The value to increment or decrement by.
* @returns {Array} Returns the range of numbers.
* @see _.inRange, _.rangeRight
* @example
*
* _.range(4);
* // => [0, 1, 2, 3]
*
* _.range(-4);
* // => [0, -1, -2, -3]
*
* _.range(1, 5);
* // => [1, 2, 3, 4]
*
* _.range(0, 20, 5);
* // => [0, 5, 10, 15]
*
* _.range(0, -4, -1);
* // => [0, -1, -2, -3]
*
* _.range(1, 4, 0);
* // => [1, 1, 1]
*
* _.range(0);
* // => []
*/
var range = createRange();
/**
* This method is like `_.range` except that it populates values in
* descending order.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Util
* @param {number} [start=0] The start of the range.
* @param {number} end The end of the range.
* @param {number} [step=1] The value to increment or decrement by.
* @returns {Array} Returns the range of numbers.
* @see _.inRange, _.range
* @example
*
* _.rangeRight(4);
* // => [3, 2, 1, 0]
*
* _.rangeRight(-4);
* // => [-3, -2, -1, 0]
*
* _.rangeRight(1, 5);
* // => [4, 3, 2, 1]
*
* _.rangeRight(0, 20, 5);
* // => [15, 10, 5, 0]
*
* _.rangeRight(0, -4, -1);
* // => [-3, -2, -1, 0]
*
* _.rangeRight(1, 4, 0);
* // => [1, 1, 1]
*
* _.rangeRight(0);
* // => []
*/
var rangeRight = createRange(true);
/**
* A method that returns a new empty array.
*
* @static
* @memberOf _
* @since 4.13.0
* @category Util
* @returns {Array} Returns the new empty array.
* @example
*
* var arrays = _.times(2, _.stubArray);
*
* console.log(arrays);
* // => [[], []]
*
* console.log(arrays[0] === arrays[1]);
* // => false
*/
function stubArray() {
return [];
}
/**
* A method that returns `false`.
*
* @static
* @memberOf _
* @since 4.13.0
* @category Util
* @returns {boolean} Returns `false`.
* @example
*
* _.times(2, _.stubFalse);
* // => [false, false]
*/
function stubFalse() {
return false;
}
/**
* A method that returns a new empty object.
*
* @static
* @memberOf _
* @since 4.13.0
* @category Util
* @returns {Object} Returns the new empty object.
* @example
*
* var objects = _.times(2, _.stubObject);
*
* console.log(objects);
* // => [{}, {}]
*
* console.log(objects[0] === objects[1]);
* // => false
*/
function stubObject() {
return {};
}
/**
* A method that returns an empty string.
*
* @static
* @memberOf _
* @since 4.13.0
* @category Util
* @returns {string} Returns the empty string.
* @example
*
* _.times(2, _.stubString);
* // => ['', '']
*/
function stubString() {
return '';
}
/**
* A method that returns `true`.
*
* @static
* @memberOf _
* @since 4.13.0
* @category Util
* @returns {boolean} Returns `true`.
* @example
*
* _.times(2, _.stubTrue);
* // => [true, true]
*/
function stubTrue() {
return true;
}
/**
* Invokes the iteratee `n` times, returning an array of the results of
* each invocation. The iteratee is invoked with one argument; (index).
*
* @static
* @since 0.1.0
* @memberOf _
* @category Util
* @param {number} n The number of times to invoke `iteratee`.
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
* @returns {Array} Returns the array of results.
* @example
*
* _.times(3, String);
* // => ['0', '1', '2']
*
* _.times(4, _.constant(0));
* // => [0, 0, 0, 0]
*/
function times(n, iteratee) {
n = toInteger(n);
if (n < 1 || n > MAX_SAFE_INTEGER) {
return [];
}
var index = MAX_ARRAY_LENGTH,
length = nativeMin(n, MAX_ARRAY_LENGTH);
iteratee = getIteratee(iteratee);
n -= MAX_ARRAY_LENGTH;
var result = baseTimes(length, iteratee);
while (++index < n) {
iteratee(index);
}
return result;
}
/**
* Converts `value` to a property path array.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Util
* @param {*} value The value to convert.
* @returns {Array} Returns the new property path array.
* @example
*
* _.toPath('a.b.c');
* // => ['a', 'b', 'c']
*
* _.toPath('a[0].b.c');
* // => ['a', '0', 'b', 'c']
*/
function toPath(value) {
if (isArray(value)) {
return arrayMap(value, toKey);
}
return isSymbol(value) ? [value] : copyArray(stringToPath(value));
}
/**
* Generates a unique ID. If `prefix` is given, the ID is appended to it.
*
* @static
* @since 0.1.0
* @memberOf _
* @category Util
* @param {string} [prefix=''] The value to prefix the ID with.
* @returns {string} Returns the unique ID.
* @example
*
* _.uniqueId('contact_');
* // => 'contact_104'
*
* _.uniqueId();
* // => '105'
*/
function uniqueId(prefix) {
var id = ++idCounter;
return toString(prefix) + id;
}
/*------------------------------------------------------------------------*/
/**
* Adds two numbers.
*
* @static
* @memberOf _
* @since 3.4.0
* @category Math
* @param {number} augend The first number in an addition.
* @param {number} addend The second number in an addition.
* @returns {number} Returns the total.
* @example
*
* _.add(6, 4);
* // => 10
*/
var add = createMathOperation(function(augend, addend) {
return augend + addend;
});
/**
* Computes `number` rounded up to `precision`.
*
* @static
* @memberOf _
* @since 3.10.0
* @category Math
* @param {number} number The number to round up.
* @param {number} [precision=0] The precision to round up to.
* @returns {number} Returns the rounded up number.
* @example
*
* _.ceil(4.006);
* // => 5
*
* _.ceil(6.004, 2);
* // => 6.01
*
* _.ceil(6040, -2);
* // => 6100
*/
var ceil = createRound('ceil');
/**
* Divide two numbers.
*
* @static
* @memberOf _
* @since 4.7.0
* @category Math
* @param {number} dividend The first number in a division.
* @param {number} divisor The second number in a division.
* @returns {number} Returns the quotient.
* @example
*
* _.divide(6, 4);
* // => 1.5
*/
var divide = createMathOperation(function(dividend, divisor) {
return dividend / divisor;
});
/**
* Computes `number` rounded down to `precision`.
*
* @static
* @memberOf _
* @since 3.10.0
* @category Math
* @param {number} number The number to round down.
* @param {number} [precision=0] The precision to round down to.
* @returns {number} Returns the rounded down number.
* @example
*
* _.floor(4.006);
* // => 4
*
* _.floor(0.046, 2);
* // => 0.04
*
* _.floor(4060, -2);
* // => 4000
*/
var floor = createRound('floor');
/**
* Computes the maximum value of `array`. If `array` is empty or falsey,
* `undefined` is returned.
*
* @static
* @since 0.1.0
* @memberOf _
* @category Math
* @param {Array} array The array to iterate over.
* @returns {*} Returns the maximum value.
* @example
*
* _.max([4, 2, 8, 6]);
* // => 8
*
* _.max([]);
* // => undefined
*/
function max(array) {
return (array && array.length)
? baseExtremum(array, identity, baseGt)
: undefined;
}
/**
* This method is like `_.max` except that it accepts `iteratee` which is
* invoked for each element in `array` to generate the criterion by which
* the value is ranked. The iteratee is invoked with one argument: (value).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Math
* @param {Array} array The array to iterate over.
* @param {Array|Function|Object|string} [iteratee=_.identity]
* The iteratee invoked per element.
* @returns {*} Returns the maximum value.
* @example
*
* var objects = [{ 'n': 1 }, { 'n': 2 }];
*
* _.maxBy(objects, function(o) { return o.n; });
* // => { 'n': 2 }
*
* // The `_.property` iteratee shorthand.
* _.maxBy(objects, 'n');
* // => { 'n': 2 }
*/
function maxBy(array, iteratee) {
return (array && array.length)
? baseExtremum(array, getIteratee(iteratee), baseGt)
: undefined;
}
/**
* Computes the mean of the values in `array`.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Math
* @param {Array} array The array to iterate over.
* @returns {number} Returns the mean.
* @example
*
* _.mean([4, 2, 8, 6]);
* // => 5
*/
function mean(array) {
return baseMean(array, identity);
}
/**
* This method is like `_.mean` except that it accepts `iteratee` which is
* invoked for each element in `array` to generate the value to be averaged.
* The iteratee is invoked with one argument: (value).
*
* @static
* @memberOf _
* @since 4.7.0
* @category Math
* @param {Array} array The array to iterate over.
* @param {Array|Function|Object|string} [iteratee=_.identity]
* The iteratee invoked per element.
* @returns {number} Returns the mean.
* @example
*
* var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];
*
* _.meanBy(objects, function(o) { return o.n; });
* // => 5
*
* // The `_.property` iteratee shorthand.
* _.meanBy(objects, 'n');
* // => 5
*/
function meanBy(array, iteratee) {
return baseMean(array, getIteratee(iteratee));
}
/**
* Computes the minimum value of `array`. If `array` is empty or falsey,
* `undefined` is returned.
*
* @static
* @since 0.1.0
* @memberOf _
* @category Math
* @param {Array} array The array to iterate over.
* @returns {*} Returns the minimum value.
* @example
*
* _.min([4, 2, 8, 6]);
* // => 2
*
* _.min([]);
* // => undefined
*/
function min(array) {
return (array && array.length)
? baseExtremum(array, identity, baseLt)
: undefined;
}
/**
* This method is like `_.min` except that it accepts `iteratee` which is
* invoked for each element in `array` to generate the criterion by which
* the value is ranked. The iteratee is invoked with one argument: (value).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Math
* @param {Array} array The array to iterate over.
* @param {Array|Function|Object|string} [iteratee=_.identity]
* The iteratee invoked per element.
* @returns {*} Returns the minimum value.
* @example
*
* var objects = [{ 'n': 1 }, { 'n': 2 }];
*
* _.minBy(objects, function(o) { return o.n; });
* // => { 'n': 1 }
*
* // The `_.property` iteratee shorthand.
* _.minBy(objects, 'n');
* // => { 'n': 1 }
*/
function minBy(array, iteratee) {
return (array && array.length)
? baseExtremum(array, getIteratee(iteratee), baseLt)
: undefined;
}
/**
* Multiply two numbers.
*
* @static
* @memberOf _
* @since 4.7.0
* @category Math
* @param {number} multiplier The first number in a multiplication.
* @param {number} multiplicand The second number in a multiplication.
* @returns {number} Returns the product.
* @example
*
* _.multiply(6, 4);
* // => 24
*/
var multiply = createMathOperation(function(multiplier, multiplicand) {
return multiplier * multiplicand;
});
/**
* Computes `number` rounded to `precision`.
*
* @static
* @memberOf _
* @since 3.10.0
* @category Math
* @param {number} number The number to round.
* @param {number} [precision=0] The precision to round to.
* @returns {number} Returns the rounded number.
* @example
*
* _.round(4.006);
* // => 4
*
* _.round(4.006, 2);
* // => 4.01
*
* _.round(4060, -2);
* // => 4100
*/
var round = createRound('round');
/**
* Subtract two numbers.
*
* @static
* @memberOf _
* @since 4.0.0
* @category Math
* @param {number} minuend The first number in a subtraction.
* @param {number} subtrahend The second number in a subtraction.
* @returns {number} Returns the difference.
* @example
*
* _.subtract(6, 4);
* // => 2
*/
var subtract = createMathOperation(function(minuend, subtrahend) {
return minuend - subtrahend;
});
/**
* Computes the sum of the values in `array`.
*
* @static
* @memberOf _
* @since 3.4.0
* @category Math
* @param {Array} array The array to iterate over.
* @returns {number} Returns the sum.
* @example
*
* _.sum([4, 2, 8, 6]);
* // => 20
*/
function sum(array) {
return (array && array.length)
? baseSum(array, identity)
: 0;
}
/**
* This method is like `_.sum` except that it accepts `iteratee` which is
* invoked for each element in `array` to generate the value to be summed.
* The iteratee is invoked with one argument: (value).
*
* @static
* @memberOf _
* @since 4.0.0
* @category Math
* @param {Array} array The array to iterate over.
* @param {Array|Function|Object|string} [iteratee=_.identity]
* The iteratee invoked per element.
* @returns {number} Returns the sum.
* @example
*
* var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];
*
* _.sumBy(objects, function(o) { return o.n; });
* // => 20
*
* // The `_.property` iteratee shorthand.
* _.sumBy(objects, 'n');
* // => 20
*/
function sumBy(array, iteratee) {
return (array && array.length)
? baseSum(array, getIteratee(iteratee))
: 0;
}
/*------------------------------------------------------------------------*/
// Add methods that return wrapped values in chain sequences.
lodash.after = after;
lodash.ary = ary;
lodash.assign = assign;
lodash.assignIn = assignIn;
lodash.assignInWith = assignInWith;
lodash.assignWith = assignWith;
lodash.at = at;
lodash.before = before;
lodash.bind = bind;
lodash.bindAll = bindAll;
lodash.bindKey = bindKey;
lodash.castArray = castArray;
lodash.chain = chain;
lodash.chunk = chunk;
lodash.compact = compact;
lodash.concat = concat;
lodash.cond = cond;
lodash.conforms = conforms;
lodash.constant = constant;
lodash.countBy = countBy;
lodash.create = create;
lodash.curry = curry;
lodash.curryRight = curryRight;
lodash.debounce = debounce;
lodash.defaults = defaults;
lodash.defaultsDeep = defaultsDeep;
lodash.defer = defer;
lodash.delay = delay;
lodash.difference = difference;
lodash.differenceBy = differenceBy;
lodash.differenceWith = differenceWith;
lodash.drop = drop;
lodash.dropRight = dropRight;
lodash.dropRightWhile = dropRightWhile;
lodash.dropWhile = dropWhile;
lodash.fill = fill;
lodash.filter = filter;
lodash.flatMap = flatMap;
lodash.flatMapDeep = flatMapDeep;
lodash.flatMapDepth = flatMapDepth;
lodash.flatten = flatten;
lodash.flattenDeep = flattenDeep;
lodash.flattenDepth = flattenDepth;
lodash.flip = flip;
lodash.flow = flow;
lodash.flowRight = flowRight;
lodash.fromPairs = fromPairs;
lodash.functions = functions;
lodash.functionsIn = functionsIn;
lodash.groupBy = groupBy;
lodash.initial = initial;
lodash.intersection = intersection;
lodash.intersectionBy = intersectionBy;
lodash.intersectionWith = intersectionWith;
lodash.invert = invert;
lodash.invertBy = invertBy;
lodash.invokeMap = invokeMap;
lodash.iteratee = iteratee;
lodash.keyBy = keyBy;
lodash.keys = keys;
lodash.keysIn = keysIn;
lodash.map = map;
lodash.mapKeys = mapKeys;
lodash.mapValues = mapValues;
lodash.matches = matches;
lodash.matchesProperty = matchesProperty;
lodash.memoize = memoize;
lodash.merge = merge;
lodash.mergeWith = mergeWith;
lodash.method = method;
lodash.methodOf = methodOf;
lodash.mixin = mixin;
lodash.negate = negate;
lodash.nthArg = nthArg;
lodash.omit = omit;
lodash.omitBy = omitBy;
lodash.once = once;
lodash.orderBy = orderBy;
lodash.over = over;
lodash.overArgs = overArgs;
lodash.overEvery = overEvery;
lodash.overSome = overSome;
lodash.partial = partial;
lodash.partialRight = partialRight;
lodash.partition = partition;
lodash.pick = pick;
lodash.pickBy = pickBy;
lodash.property = property;
lodash.propertyOf = propertyOf;
lodash.pull = pull;
lodash.pullAll = pullAll;
lodash.pullAllBy = pullAllBy;
lodash.pullAllWith = pullAllWith;
lodash.pullAt = pullAt;
lodash.range = range;
lodash.rangeRight = rangeRight;
lodash.rearg = rearg;
lodash.reject = reject;
lodash.remove = remove;
lodash.rest = rest;
lodash.reverse = reverse;
lodash.sampleSize = sampleSize;
lodash.set = set;
lodash.setWith = setWith;
lodash.shuffle = shuffle;
lodash.slice = slice;
lodash.sortBy = sortBy;
lodash.sortedUniq = sortedUniq;
lodash.sortedUniqBy = sortedUniqBy;
lodash.split = split;
lodash.spread = spread;
lodash.tail = tail;
lodash.take = take;
lodash.takeRight = takeRight;
lodash.takeRightWhile = takeRightWhile;
lodash.takeWhile = takeWhile;
lodash.tap = tap;
lodash.throttle = throttle;
lodash.thru = thru;
lodash.toArray = toArray;
lodash.toPairs = toPairs;
lodash.toPairsIn = toPairsIn;
lodash.toPath = toPath;
lodash.toPlainObject = toPlainObject;
lodash.transform = transform;
lodash.unary = unary;
lodash.union = union;
lodash.unionBy = unionBy;
lodash.unionWith = unionWith;
lodash.uniq = uniq;
lodash.uniqBy = uniqBy;
lodash.uniqWith = uniqWith;
lodash.unset = unset;
lodash.unzip = unzip;
lodash.unzipWith = unzipWith;
lodash.update = update;
lodash.updateWith = updateWith;
lodash.values = values;
lodash.valuesIn = valuesIn;
lodash.without = without;
lodash.words = words;
lodash.wrap = wrap;
lodash.xor = xor;
lodash.xorBy = xorBy;
lodash.xorWith = xorWith;
lodash.zip = zip;
lodash.zipObject = zipObject;
lodash.zipObjectDeep = zipObjectDeep;
lodash.zipWith = zipWith;
// Add aliases.
lodash.entries = toPairs;
lodash.entriesIn = toPairsIn;
lodash.extend = assignIn;
lodash.extendWith = assignInWith;
// Add methods to `lodash.prototype`.
mixin(lodash, lodash);
/*------------------------------------------------------------------------*/
// Add methods that return unwrapped values in chain sequences.
lodash.add = add;
lodash.attempt = attempt;
lodash.camelCase = camelCase;
lodash.capitalize = capitalize;
lodash.ceil = ceil;
lodash.clamp = clamp;
lodash.clone = clone;
lodash.cloneDeep = cloneDeep;
lodash.cloneDeepWith = cloneDeepWith;
lodash.cloneWith = cloneWith;
lodash.deburr = deburr;
lodash.divide = divide;
lodash.endsWith = endsWith;
lodash.eq = eq;
lodash.escape = escape;
lodash.escapeRegExp = escapeRegExp;
lodash.every = every;
lodash.find = find;
lodash.findIndex = findIndex;
lodash.findKey = findKey;
lodash.findLast = findLast;
lodash.findLastIndex = findLastIndex;
lodash.findLastKey = findLastKey;
lodash.floor = floor;
lodash.forEach = forEach;
lodash.forEachRight = forEachRight;
lodash.forIn = forIn;
lodash.forInRight = forInRight;
lodash.forOwn = forOwn;
lodash.forOwnRight = forOwnRight;
lodash.get = get;
lodash.gt = gt;
lodash.gte = gte;
lodash.has = has;
lodash.hasIn = hasIn;
lodash.head = head;
lodash.identity = identity;
lodash.includes = includes;
lodash.indexOf = indexOf;
lodash.inRange = inRange;
lodash.invoke = invoke;
lodash.isArguments = isArguments;
lodash.isArray = isArray;
lodash.isArrayBuffer = isArrayBuffer;
lodash.isArrayLike = isArrayLike;
lodash.isArrayLikeObject = isArrayLikeObject;
lodash.isBoolean = isBoolean;
lodash.isBuffer = isBuffer;
lodash.isDate = isDate;
lodash.isElement = isElement;
lodash.isEmpty = isEmpty;
lodash.isEqual = isEqual;
lodash.isEqualWith = isEqualWith;
lodash.isError = isError;
lodash.isFinite = isFinite;
lodash.isFunction = isFunction;
lodash.isInteger = isInteger;
lodash.isLength = isLength;
lodash.isMap = isMap;
lodash.isMatch = isMatch;
lodash.isMatchWith = isMatchWith;
lodash.isNaN = isNaN;
lodash.isNative = isNative;
lodash.isNil = isNil;
lodash.isNull = isNull;
lodash.isNumber = isNumber;
lodash.isObject = isObject;
lodash.isObjectLike = isObjectLike;
lodash.isPlainObject = isPlainObject;
lodash.isRegExp = isRegExp;
lodash.isSafeInteger = isSafeInteger;
lodash.isSet = isSet;
lodash.isString = isString;
lodash.isSymbol = isSymbol;
lodash.isTypedArray = isTypedArray;
lodash.isUndefined = isUndefined;
lodash.isWeakMap = isWeakMap;
lodash.isWeakSet = isWeakSet;
lodash.join = join;
lodash.kebabCase = kebabCase;
lodash.last = last;
lodash.lastIndexOf = lastIndexOf;
lodash.lowerCase = lowerCase;
lodash.lowerFirst = lowerFirst;
lodash.lt = lt;
lodash.lte = lte;
lodash.max = max;
lodash.maxBy = maxBy;
lodash.mean = mean;
lodash.meanBy = meanBy;
lodash.min = min;
lodash.minBy = minBy;
lodash.stubArray = stubArray;
lodash.stubFalse = stubFalse;
lodash.stubObject = stubObject;
lodash.stubString = stubString;
lodash.stubTrue = stubTrue;
lodash.multiply = multiply;
lodash.nth = nth;
lodash.noConflict = noConflict;
lodash.noop = noop;
lodash.now = now;
lodash.pad = pad;
lodash.padEnd = padEnd;
lodash.padStart = padStart;
lodash.parseInt = parseInt;
lodash.random = random;
lodash.reduce = reduce;
lodash.reduceRight = reduceRight;
lodash.repeat = repeat;
lodash.replace = replace;
lodash.result = result;
lodash.round = round;
lodash.runInContext = runInContext;
lodash.sample = sample;
lodash.size = size;
lodash.snakeCase = snakeCase;
lodash.some = some;
lodash.sortedIndex = sortedIndex;
lodash.sortedIndexBy = sortedIndexBy;
lodash.sortedIndexOf = sortedIndexOf;
lodash.sortedLastIndex = sortedLastIndex;
lodash.sortedLastIndexBy = sortedLastIndexBy;
lodash.sortedLastIndexOf = sortedLastIndexOf;
lodash.startCase = startCase;
lodash.startsWith = startsWith;
lodash.subtract = subtract;
lodash.sum = sum;
lodash.sumBy = sumBy;
lodash.template = template;
lodash.times = times;
lodash.toFinite = toFinite;
lodash.toInteger = toInteger;
lodash.toLength = toLength;
lodash.toLower = toLower;
lodash.toNumber = toNumber;
lodash.toSafeInteger = toSafeInteger;
lodash.toString = toString;
lodash.toUpper = toUpper;
lodash.trim = trim;
lodash.trimEnd = trimEnd;
lodash.trimStart = trimStart;
lodash.truncate = truncate;
lodash.unescape = unescape;
lodash.uniqueId = uniqueId;
lodash.upperCase = upperCase;
lodash.upperFirst = upperFirst;
// Add aliases.
lodash.each = forEach;
lodash.eachRight = forEachRight;
lodash.first = head;
mixin(lodash, (function() {
var source = {};
baseForOwn(lodash, function(func, methodName) {
if (!hasOwnProperty.call(lodash.prototype, methodName)) {
source[methodName] = func;
}
});
return source;
}()), { 'chain': false });
/*------------------------------------------------------------------------*/
/**
* The semantic version number.
*
* @static
* @memberOf _
* @type {string}
*/
lodash.VERSION = VERSION;
// Assign default placeholders.
arrayEach(['bind', 'bindKey', 'curry', 'curryRight', 'partial', 'partialRight'], function(methodName) {
lodash[methodName].placeholder = lodash;
});
// Add `LazyWrapper` methods for `_.drop` and `_.take` variants.
arrayEach(['drop', 'take'], function(methodName, index) {
LazyWrapper.prototype[methodName] = function(n) {
var filtered = this.__filtered__;
if (filtered && !index) {
return new LazyWrapper(this);
}
n = n === undefined ? 1 : nativeMax(toInteger(n), 0);
var result = this.clone();
if (filtered) {
result.__takeCount__ = nativeMin(n, result.__takeCount__);
} else {
result.__views__.push({
'size': nativeMin(n, MAX_ARRAY_LENGTH),
'type': methodName + (result.__dir__ < 0 ? 'Right' : '')
});
}
return result;
};
LazyWrapper.prototype[methodName + 'Right'] = function(n) {
return this.reverse()[methodName](n).reverse();
};
});
// Add `LazyWrapper` methods that accept an `iteratee` value.
arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) {
var type = index + 1,
isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG;
LazyWrapper.prototype[methodName] = function(iteratee) {
var result = this.clone();
result.__iteratees__.push({
'iteratee': getIteratee(iteratee, 3),
'type': type
});
result.__filtered__ = result.__filtered__ || isFilter;
return result;
};
});
// Add `LazyWrapper` methods for `_.head` and `_.last`.
arrayEach(['head', 'last'], function(methodName, index) {
var takeName = 'take' + (index ? 'Right' : '');
LazyWrapper.prototype[methodName] = function() {
return this[takeName](1).value()[0];
};
});
// Add `LazyWrapper` methods for `_.initial` and `_.tail`.
arrayEach(['initial', 'tail'], function(methodName, index) {
var dropName = 'drop' + (index ? '' : 'Right');
LazyWrapper.prototype[methodName] = function() {
return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1);
};
});
LazyWrapper.prototype.compact = function() {
return this.filter(identity);
};
LazyWrapper.prototype.find = function(predicate) {
return this.filter(predicate).head();
};
LazyWrapper.prototype.findLast = function(predicate) {
return this.reverse().find(predicate);
};
LazyWrapper.prototype.invokeMap = rest(function(path, args) {
if (typeof path == 'function') {
return new LazyWrapper(this);
}
return this.map(function(value) {
return baseInvoke(value, path, args);
});
});
LazyWrapper.prototype.reject = function(predicate) {
predicate = getIteratee(predicate, 3);
return this.filter(function(value) {
return !predicate(value);
});
};
LazyWrapper.prototype.slice = function(start, end) {
start = toInteger(start);
var result = this;
if (result.__filtered__ && (start > 0 || end < 0)) {
return new LazyWrapper(result);
}
if (start < 0) {
result = result.takeRight(-start);
} else if (start) {
result = result.drop(start);
}
if (end !== undefined) {
end = toInteger(end);
result = end < 0 ? result.dropRight(-end) : result.take(end - start);
}
return result;
};
LazyWrapper.prototype.takeRightWhile = function(predicate) {
return this.reverse().takeWhile(predicate).reverse();
};
LazyWrapper.prototype.toArray = function() {
return this.take(MAX_ARRAY_LENGTH);
};
// Add `LazyWrapper` methods to `lodash.prototype`.
baseForOwn(LazyWrapper.prototype, function(func, methodName) {
var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName),
isTaker = /^(?:head|last)$/.test(methodName),
lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName],
retUnwrapped = isTaker || /^find/.test(methodName);
if (!lodashFunc) {
return;
}
lodash.prototype[methodName] = function() {
var value = this.__wrapped__,
args = isTaker ? [1] : arguments,
isLazy = value instanceof LazyWrapper,
iteratee = args[0],
useLazy = isLazy || isArray(value);
var interceptor = function(value) {
var result = lodashFunc.apply(lodash, arrayPush([value], args));
return (isTaker && chainAll) ? result[0] : result;
};
if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) {
// Avoid lazy use if the iteratee has a "length" value other than `1`.
isLazy = useLazy = false;
}
var chainAll = this.__chain__,
isHybrid = !!this.__actions__.length,
isUnwrapped = retUnwrapped && !chainAll,
onlyLazy = isLazy && !isHybrid;
if (!retUnwrapped && useLazy) {
value = onlyLazy ? value : new LazyWrapper(this);
var result = func.apply(value, args);
result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined });
return new LodashWrapper(result, chainAll);
}
if (isUnwrapped && onlyLazy) {
return func.apply(this, args);
}
result = this.thru(interceptor);
return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result;
};
});
// Add `Array` methods to `lodash.prototype`.
arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) {
var func = arrayProto[methodName],
chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru',
retUnwrapped = /^(?:pop|shift)$/.test(methodName);
lodash.prototype[methodName] = function() {
var args = arguments;
if (retUnwrapped && !this.__chain__) {
var value = this.value();
return func.apply(isArray(value) ? value : [], args);
}
return this[chainName](function(value) {
return func.apply(isArray(value) ? value : [], args);
});
};
});
// Map minified method names to their real names.
baseForOwn(LazyWrapper.prototype, function(func, methodName) {
var lodashFunc = lodash[methodName];
if (lodashFunc) {
var key = (lodashFunc.name + ''),
names = realNames[key] || (realNames[key] = []);
names.push({ 'name': methodName, 'func': lodashFunc });
}
});
realNames[createHybridWrapper(undefined, BIND_KEY_FLAG).name] = [{
'name': 'wrapper',
'func': undefined
}];
// Add methods to `LazyWrapper`.
LazyWrapper.prototype.clone = lazyClone;
LazyWrapper.prototype.reverse = lazyReverse;
LazyWrapper.prototype.value = lazyValue;
// Add chain sequence methods to the `lodash` wrapper.
lodash.prototype.at = wrapperAt;
lodash.prototype.chain = wrapperChain;
lodash.prototype.commit = wrapperCommit;
lodash.prototype.next = wrapperNext;
lodash.prototype.plant = wrapperPlant;
lodash.prototype.reverse = wrapperReverse;
lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue;
if (iteratorSymbol) {
lodash.prototype[iteratorSymbol] = wrapperToIterator;
}
return lodash;
}
/*--------------------------------------------------------------------------*/
// Export lodash.
var _ = runInContext();
// Expose Lodash on the free variable `window` or `self` when available so it's
// globally accessible, even when bundled with Browserify, Webpack, etc. This
// also prevents errors in cases where Lodash is loaded by a script tag in the
// presence of an AMD loader. See http://requirejs.org/docs/errors.html#mismatch
// for more details. Use `_.noConflict` to remove Lodash from the global object.
(freeSelf || {})._ = _;
// Some AMD build optimizers like r.js check for condition patterns like the following:
if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
// Define as an anonymous module so, through path mapping, it can be
// referenced as the "underscore" module.
define(function() {
return _;
});
}
// Check for `exports` after `define` in case a build optimizer adds an `exports` object.
else if (freeModule) {
// Export for Node.js.
(freeModule.exports = _)._ = _;
// Export for CommonJS support.
freeExports._ = _;
}
else {
// Export to the global object.
root._ = _;
}
}.call(this));
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],5:[function(require,module,exports){
(function (process){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
// resolves . and .. elements in a path array with directory names there
// must be no slashes, empty elements, or device names (c:\) in the array
// (so also no leading and trailing slashes - it does not distinguish
// relative and absolute paths)
function normalizeArray(parts, allowAboveRoot) {
// if the path tries to go above the root, `up` ends up > 0
var up = 0;
for (var i = parts.length - 1; i >= 0; i--) {
var last = parts[i];
if (last === '.') {
parts.splice(i, 1);
} else if (last === '..') {
parts.splice(i, 1);
up++;
} else if (up) {
parts.splice(i, 1);
up--;
}
}
// if the path is allowed to go above the root, restore leading ..s
if (allowAboveRoot) {
for (; up--; up) {
parts.unshift('..');
}
}
return parts;
}
// Split a filename into [root, dir, basename, ext], unix version
// 'root' is just a slash, or nothing.
var splitPathRe =
/^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
var splitPath = function(filename) {
return splitPathRe.exec(filename).slice(1);
};
// path.resolve([from ...], to)
// posix version
exports.resolve = function() {
var resolvedPath = '',
resolvedAbsolute = false;
for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
var path = (i >= 0) ? arguments[i] : process.cwd();
// Skip empty and invalid entries
if (typeof path !== 'string') {
throw new TypeError('Arguments to path.resolve must be strings');
} else if (!path) {
continue;
}
resolvedPath = path + '/' + resolvedPath;
resolvedAbsolute = path.charAt(0) === '/';
}
// At this point the path should be resolved to a full absolute path, but
// handle relative paths to be safe (might happen when process.cwd() fails)
// Normalize the path
resolvedPath = normalizeArray(filter(resolvedPath.split('/'), function(p) {
return !!p;
}), !resolvedAbsolute).join('/');
return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';
};
// path.normalize(path)
// posix version
exports.normalize = function(path) {
var isAbsolute = exports.isAbsolute(path),
trailingSlash = substr(path, -1) === '/';
// Normalize the path
path = normalizeArray(filter(path.split('/'), function(p) {
return !!p;
}), !isAbsolute).join('/');
if (!path && !isAbsolute) {
path = '.';
}
if (path && trailingSlash) {
path += '/';
}
return (isAbsolute ? '/' : '') + path;
};
// posix version
exports.isAbsolute = function(path) {
return path.charAt(0) === '/';
};
// posix version
exports.join = function() {
var paths = Array.prototype.slice.call(arguments, 0);
return exports.normalize(filter(paths, function(p, index) {
if (typeof p !== 'string') {
throw new TypeError('Arguments to path.join must be strings');
}
return p;
}).join('/'));
};
// path.relative(from, to)
// posix version
exports.relative = function(from, to) {
from = exports.resolve(from).substr(1);
to = exports.resolve(to).substr(1);
function trim(arr) {
var start = 0;
for (; start < arr.length; start++) {
if (arr[start] !== '') break;
}
var end = arr.length - 1;
for (; end >= 0; end--) {
if (arr[end] !== '') break;
}
if (start > end) return [];
return arr.slice(start, end - start + 1);
}
var fromParts = trim(from.split('/'));
var toParts = trim(to.split('/'));
var length = Math.min(fromParts.length, toParts.length);
var samePartsLength = length;
for (var i = 0; i < length; i++) {
if (fromParts[i] !== toParts[i]) {
samePartsLength = i;
break;
}
}
var outputParts = [];
for (var i = samePartsLength; i < fromParts.length; i++) {
outputParts.push('..');
}
outputParts = outputParts.concat(toParts.slice(samePartsLength));
return outputParts.join('/');
};
exports.sep = '/';
exports.delimiter = ':';
exports.dirname = function(path) {
var result = splitPath(path),
root = result[0],
dir = result[1];
if (!root && !dir) {
// No dirname whatsoever
return '.';
}
if (dir) {
// It has a dirname, strip trailing slash
dir = dir.substr(0, dir.length - 1);
}
return root + dir;
};
exports.basename = function(path, ext) {
var f = splitPath(path)[2];
// TODO: make this comparison case-insensitive on windows?
if (ext && f.substr(-1 * ext.length) === ext) {
f = f.substr(0, f.length - ext.length);
}
return f;
};
exports.extname = function(path) {
return splitPath(path)[3];
};
function filter (xs, f) {
if (xs.filter) return xs.filter(f);
var res = [];
for (var i = 0; i < xs.length; i++) {
if (f(xs[i], i, xs)) res.push(xs[i]);
}
return res;
}
// String.prototype.substr - negative index don't work in IE8
var substr = 'ab'.substr(-1) === 'b'
? function (str, start, len) { return str.substr(start, len) }
: function (str, start, len) {
if (start < 0) start = str.length + start;
return str.substr(start, len);
}
;
}).call(this,require('_process'))
},{"_process":6}],6:[function(require,module,exports){
// shim for using process in browser
var process = module.exports = {};
// cached from whatever global is present so that test runners that stub it
// don't break things. But we need to wrap it in a try catch in case it is
// wrapped in strict mode code which doesn't define any globals. It's inside a
// function because try/catches deoptimize in certain engines.
var cachedSetTimeout;
var cachedClearTimeout;
(function () {
try {
cachedSetTimeout = setTimeout;
} catch (e) {
cachedSetTimeout = function () {
throw new Error('setTimeout is not defined');
}
}
try {
cachedClearTimeout = clearTimeout;
} catch (e) {
cachedClearTimeout = function () {
throw new Error('clearTimeout is not defined');
}
}
} ())
var queue = [];
var draining = false;
var currentQueue;
var queueIndex = -1;
function cleanUpNextTick() {
if (!draining || !currentQueue) {
return;
}
draining = false;
if (currentQueue.length) {
queue = currentQueue.concat(queue);
} else {
queueIndex = -1;
}
if (queue.length) {
drainQueue();
}
}
function drainQueue() {
if (draining) {
return;
}
var timeout = cachedSetTimeout(cleanUpNextTick);
draining = true;
var len = queue.length;
while(len) {
currentQueue = queue;
queue = [];
while (++queueIndex < len) {
if (currentQueue) {
currentQueue[queueIndex].run();
}
}
queueIndex = -1;
len = queue.length;
}
currentQueue = null;
draining = false;
cachedClearTimeout(timeout);
}
process.nextTick = function (fun) {
var args = new Array(arguments.length - 1);
if (arguments.length > 1) {
for (var i = 1; i < arguments.length; i++) {
args[i - 1] = arguments[i];
}
}
queue.push(new Item(fun, args));
if (queue.length === 1 && !draining) {
cachedSetTimeout(drainQueue, 0);
}
};
// v8 likes predictible objects
function Item(fun, array) {
this.fun = fun;
this.array = array;
}
Item.prototype.run = function () {
this.fun.apply(null, this.array);
};
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
process.versions = {};
function noop() {}
process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;
process.binding = function (name) {
throw new Error('process.binding is not supported');
};
process.cwd = function () { return '/' };
process.chdir = function (dir) {
throw new Error('process.chdir is not supported');
};
process.umask = function() { return 0; };
},{}],7:[function(require,module,exports){
/**
* VexFlow 1.2.62 built on 2016-07-10.
* Copyright (c) 2010 Mohit Muthanna Cheppudira <mohit@muthanna.com>
*
* http://www.vexflow.com http://github.com/0xfe/vexflow
*/
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define(factory) :
(global.Vex = factory());
}(this, function () { 'use strict';
var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) {
return typeof obj;
} : function (obj) {
return obj && typeof Symbol === "function" && obj.constructor === Symbol ? "symbol" : typeof obj;
};
var classCallCheck = function (instance, Constructor) {
if (!(instance instanceof Constructor)) {
throw new TypeError("Cannot call a class as a function");
}
};
var createClass = function () {
function defineProperties(target, props) {
for (var i = 0; i < props.length; i++) {
var descriptor = props[i];
descriptor.enumerable = descriptor.enumerable || false;
descriptor.configurable = true;
if ("value" in descriptor) descriptor.writable = true;
Object.defineProperty(target, descriptor.key, descriptor);
}
}
return function (Constructor, protoProps, staticProps) {
if (protoProps) defineProperties(Constructor.prototype, protoProps);
if (staticProps) defineProperties(Constructor, staticProps);
return Constructor;
};
}();
var get = function get(object, property, receiver) {
if (object === null) object = Function.prototype;
var desc = Object.getOwnPropertyDescriptor(object, property);
if (desc === undefined) {
var parent = Object.getPrototypeOf(object);
if (parent === null) {
return undefined;
} else {
return get(parent, property, receiver);
}
} else if ("value" in desc) {
return desc.value;
} else {
var getter = desc.get;
if (getter === undefined) {
return undefined;
}
return getter.call(receiver);
}
};
var inherits = function (subClass, superClass) {
if (typeof superClass !== "function" && superClass !== null) {
throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
}
subClass.prototype = Object.create(superClass && superClass.prototype, {
constructor: {
value: subClass,
enumerable: false,
writable: true,
configurable: true
}
});
if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
};
var possibleConstructorReturn = function (self, call) {
if (!self) {
throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
}
return call && (typeof call === "object" || typeof call === "function") ? call : self;
};
var slicedToArray = function () {
function sliceIterator(arr, i) {
var _arr = [];
var _n = true;
var _d = false;
var _e = undefined;
try {
for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
_arr.push(_s.value);
if (i && _arr.length === i) break;
}
} catch (err) {
_d = true;
_e = err;
} finally {
try {
if (!_n && _i["return"]) _i["return"]();
} finally {
if (_d) throw _e;
}
}
return _arr;
}
return function (arr, i) {
if (Array.isArray(arr)) {
return arr;
} else if (Symbol.iterator in Object(arr)) {
return sliceIterator(arr, i);
} else {
throw new TypeError("Invalid attempt to destructure non-iterable instance");
}
};
}();
var toConsumableArray = function (arr) {
if (Array.isArray(arr)) {
for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) arr2[i] = arr[i];
return arr2;
} else {
return Array.from(arr);
}
};
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
// This file implements utility methods used by the rest of the VexFlow
// codebase.
//
var Vex = function Vex() {};
// Default log function sends all arguments to console.
Vex.L = function (block, args) {
if (!args) return;
var line = Array.prototype.slice.call(args).join(' ');
window.console.log(block + ': ' + line);
};
// Default runtime exception.
var RuntimeError = function () {
function RuntimeError(code, message) {
classCallCheck(this, RuntimeError);
this.code = code;
this.message = message;
}
createClass(RuntimeError, [{
key: 'toString',
value: function toString() {
return 'RuntimeError: ' + this.message;
}
}]);
return RuntimeError;
}();
// Shortcut method for `RuntimeError`.
Vex.RuntimeError = RuntimeError;
Vex.RERR = Vex.RuntimeError;
// Merge `destination` hash with `source` hash, overwriting like keys
// in `source` if necessary.
Vex.Merge = function (destination, source) {
for (var property in source) {
// eslint-disable-line guard-for-in
destination[property] = source[property];
}
return destination;
};
// DEPRECATED. Use `Math.*`.
Vex.Min = Math.min;
Vex.Max = Math.max;
Vex.forEach = function (a, fn) {
for (var i = 0; i < a.length; i++) {
fn(a[i], i);
}
};
// Round number to nearest fractional value (`.5`, `.25`, etc.)
Vex.RoundN = function (x, n) {
return x % n >= n / 2 ? parseInt(x / n, 10) * n + n : parseInt(x / n, 10) * n;
};
// Locate the mid point between stave lines. Returns a fractional line if a space.
Vex.MidLine = function (a, b) {
var mid_line = b + (a - b) / 2;
if (mid_line % 2 > 0) {
mid_line = Vex.RoundN(mid_line * 10, 5) / 10;
}
return mid_line;
};
// Take `arr` and return a new list consisting of the sorted, unique,
// contents of arr. Does not modify `arr`.
Vex.SortAndUnique = function (arr, cmp, eq) {
if (arr.length > 1) {
var newArr = [];
var last = void 0;
arr.sort(cmp);
for (var i = 0; i < arr.length; ++i) {
if (i === 0 || !eq(arr[i], last)) {
newArr.push(arr[i]);
}
last = arr[i];
}
return newArr;
} else {
return arr;
}
};
// Check if array `a` contains `obj`.
Vex.Contains = function (a, obj) {
var i = a.length;
while (i--) {
if (a[i] === obj) {
return true;
}
}
return false;
};
// Get the 2D Canvas context from DOM element `canvas_sel`.
Vex.getCanvasContext = function (canvas_sel) {
if (!canvas_sel) {
throw new Vex.RERR('BadArgument', 'Invalid canvas selector: ' + canvas_sel);
}
var canvas = document.getElementById(canvas_sel);
if (!(canvas && canvas.getContext)) {
throw new Vex.RERR('UnsupportedBrowserError', 'This browser does not support HTML5 Canvas');
}
return canvas.getContext('2d');
};
// Draw a tiny dot marker on the specified canvas. A great debugging aid.
//
// `ctx`: Canvas context.
// `x`, `y`: Dot coordinates.
Vex.drawDot = function (ctx, x, y) {
var color = arguments.length <= 3 || arguments[3] === undefined ? '#55' : arguments[3];
ctx.save();
ctx.setFillStyle(color);
// draw a circle
ctx.beginPath();
ctx.arc(x, y, 3, 0, Math.PI * 2, true);
ctx.closePath();
ctx.fill();
ctx.restore();
};
// Benchmark. Run function `f` once and report time elapsed shifted by `s` milliseconds.
Vex.BM = function (s, f) {
var start_time = new Date().getTime();
f();
var elapsed = new Date().getTime() - start_time;
Vex.L(s + elapsed + 'ms');
};
// Get stack trace.
Vex.StackTrace = function () {
var err = new Error();
return err.stack;
};
// Dump warning to console.
Vex.W = function () {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
var line = Array.prototype.slice.call(args).join(' ');
window.console.log('Warning: ', line, Vex.StackTrace());
};
// Used by various classes (e.g., SVGContext) to provide a
// unique prefix to element names (or other keys in shared namespaces).
Vex.Prefix = function (text) {
return Vex.Prefix.prefix + text;
};
Vex.Prefix.prefix = 'vf-';
var Fraction = function () {
createClass(Fraction, null, [{
key: 'GCD',
/**
* GCD: Find greatest common divisor using Euclidean algorithm
*/
value: function GCD(a, b) {
if (typeof a !== 'number' || typeof b !== 'number') {
throw new Vex.RERR('BadArgument', 'Invalid numbers: ' + a + ', ' + b);
}
var t = void 0;
while (b !== 0) {
t = b;
b = a % b;
a = t;
}
return a;
}
/**
* LCM: Lowest common multiple
*/
}, {
key: 'LCM',
value: function LCM(a, b) {
return a * b / Fraction.GCD(a, b);
}
/**
* LCMM: Lowest common multiple for more than two numbers
*/
}, {
key: 'LCMM',
value: function LCMM(args) {
if (args.length === 0) {
return 0;
} else if (args.length === 1) {
return args[0];
} else if (args.length === 2) {
return Fraction.LCM(args[0], args[1]);
} else {
var arg0 = args[0];
args.shift();
return Fraction.LCM(arg0, Fraction.LCMM(args));
}
}
}]);
function Fraction(numerator, denominator) {
classCallCheck(this, Fraction);
this.set(numerator, denominator);
}
createClass(Fraction, [{
key: 'set',
value: function set(numerator, denominator) {
this.numerator = numerator === undefined ? 1 : numerator;
this.denominator = denominator === undefined ? 1 : denominator;
return this;
}
}, {
key: 'value',
value: function value() {
return this.numerator / this.denominator;
}
}, {
key: 'simplify',
value: function simplify() {
var u = this.numerator;
var d = this.denominator;
var gcd = Fraction.GCD(u, d);
u /= gcd;
d /= gcd;
if (d < 0) {
d = -d;
u = -u;
}
return this.set(u, d);
}
}, {
key: 'add',
value: function add(param1, param2) {
var otherNumerator = void 0;
var otherDenominator = void 0;
if (param1 instanceof Fraction) {
otherNumerator = param1.numerator;
otherDenominator = param1.denominator;
} else {
if (param1 !== undefined) {
otherNumerator = param1;
} else {
otherNumerator = 0;
}
if (param2 !== undefined) {
otherDenominator = param2;
} else {
otherDenominator = 1;
}
}
var lcm = Fraction.LCM(this.denominator, otherDenominator);
var a = lcm / this.denominator;
var b = lcm / otherDenominator;
var u = this.numerator * a + otherNumerator * b;
return this.set(u, lcm);
}
}, {
key: 'subtract',
value: function subtract(param1, param2) {
var otherNumerator = void 0;
var otherDenominator = void 0;
if (param1 instanceof Fraction) {
otherNumerator = param1.numerator;
otherDenominator = param1.denominator;
} else {
if (param1 !== undefined) {
otherNumerator = param1;
} else {
otherNumerator = 0;
}
if (param2 !== undefined) {
otherDenominator = param2;
} else {
otherDenominator = 1;
}
}
var lcm = Fraction.LCM(this.denominator, otherDenominator);
var a = lcm / this.denominator;
var b = lcm / otherDenominator;
var u = this.numerator * a - otherNumerator * b;
return this.set(u, lcm);
}
}, {
key: 'multiply',
value: function multiply(param1, param2) {
var otherNumerator = void 0;
var otherDenominator = void 0;
if (param1 instanceof Fraction) {
otherNumerator = param1.numerator;
otherDenominator = param1.denominator;
} else {
if (param1 !== undefined) {
otherNumerator = param1;
} else {
otherNumerator = 1;
}
if (param2 !== undefined) {
otherDenominator = param2;
} else {
otherDenominator = 1;
}
}
return this.set(this.numerator * otherNumerator, this.denominator * otherDenominator);
}
}, {
key: 'divide',
value: function divide(param1, param2) {
var otherNumerator = void 0;
var otherDenominator = void 0;
if (param1 instanceof Fraction) {
otherNumerator = param1.numerator;
otherDenominator = param1.denominator;
} else {
if (param1 !== undefined) {
otherNumerator = param1;
} else {
otherNumerator = 1;
}
if (param2 !== undefined) {
otherDenominator = param2;
} else {
otherDenominator = 1;
}
}
return this.set(this.numerator * otherDenominator, this.denominator * otherNumerator);
}
// Simplifies both sides and checks if they are equal.
}, {
key: 'equals',
value: function equals(compare) {
var a = Fraction.__compareA.copy(compare).simplify();
var b = Fraction.__compareB.copy(this).simplify();
return a.numerator === b.numerator && a.denominator === b.denominator;
}
// Greater than operator.
}, {
key: 'greaterThan',
value: function greaterThan(compare) {
var a = Fraction.__compareB.copy(this);
a.subtract(compare);
return a.numerator > 0;
}
// Greater than or equals operator.
}, {
key: 'greaterThanEquals',
value: function greaterThanEquals(compare) {
var a = Fraction.__compareB.copy(this);
a.subtract(compare);
return a.numerator >= 0;
}
// Less than operator.
}, {
key: 'lessThan',
value: function lessThan(compare) {
return !this.greaterThanEquals(compare);
}
// Less than or equals operator.
}, {
key: 'lessThanEquals',
value: function lessThanEquals(compare) {
return !this.greaterThan(compare);
}
// Creates a new copy with this current values.
}, {
key: 'clone',
value: function clone() {
return new Fraction(this.numerator, this.denominator);
}
// Copies value of another Fraction into itself.
}, {
key: 'copy',
value: function copy(_copy) {
return this.set(_copy.numerator, _copy.denominator);
}
// Returns the integer component eg. (4/2) == 2
}, {
key: 'quotient',
value: function quotient() {
return Math.floor(this.numerator / this.denominator);
}
// Returns the fraction component when reduced to a mixed number
}, {
key: 'fraction',
value: function fraction() {
return this.numerator % this.denominator;
}
// Returns the absolute value
}, {
key: 'abs',
value: function abs() {
this.denominator = Math.abs(this.denominator);
this.numerator = Math.abs(this.numerator);
return this;
}
// Returns a raw string representation
}, {
key: 'toString',
value: function toString() {
return this.numerator + '/' + this.denominator;
}
// Returns a simplified string respresentation
}, {
key: 'toSimplifiedString',
value: function toSimplifiedString() {
return Fraction.__tmp.copy(this).simplify().toString();
}
// Returns string representation in mixed form
}, {
key: 'toMixedString',
value: function toMixedString() {
var s = '';
var q = this.quotient();
var f = Fraction.__tmp.copy(this);
if (q < 0) {
f.abs().fraction();
} else {
f.fraction();
}
if (q !== 0) {
s += q;
if (f.numerator !== 0) {
s += ' ' + f.toSimplifiedString();
}
} else {
if (f.numerator === 0) {
s = '0';
} else {
s = f.toSimplifiedString();
}
}
return s;
}
// Parses a fraction string
}, {
key: 'parse',
value: function parse(str) {
var i = str.split('/');
var n = parseInt(i[0], 10);
var d = i[1] ? parseInt(i[1], 10) : 1;
return this.set(n, d);
}
}]);
return Fraction;
}();
Fraction.__compareA = new Fraction();
Fraction.__compareB = new Fraction();
Fraction.__tmp = new Fraction();
var Flow = {
STEM_WIDTH: 1.5,
STEM_HEIGHT: 32,
STAVE_LINE_THICKNESS: 2,
RESOLUTION: 16384,
/* Kerning (DEPRECATED) */
IsKerned: true
};
Flow.clefProperties = function (clef) {
if (!clef) throw new Vex.RERR('BadArgument', 'Invalid clef: ' + clef);
var props = Flow.clefProperties.values[clef];
if (!props) throw new Vex.RERR('BadArgument', 'Invalid clef: ' + clef);
return props;
};
Flow.clefProperties.values = {
'treble': { line_shift: 0 },
'bass': { line_shift: 6 },
'tenor': { line_shift: 4 },
'alto': { line_shift: 3 },
'soprano': { line_shift: 1 },
'percussion': { line_shift: 0 },
'mezzo-soprano': { line_shift: 2 },
'baritone-c': { line_shift: 5 },
'baritone-f': { line_shift: 5 },
'subbass': { line_shift: 7 },
'french': { line_shift: -1 }
};
/*
Take a note in the format "Key/Octave" (e.g., "C/5") and return properties.
The last argument, params, is a struct the currently can contain one option,
octave_shift for clef ottavation (0 = default; 1 = 8va; -1 = 8vb, etc.).
*/
Flow.keyProperties = function (key, clef, params) {
if (clef === undefined) {
clef = 'treble';
}
var options = { octave_shift: 0 };
if ((typeof params === 'undefined' ? 'undefined' : _typeof(params)) === 'object') {
Vex.Merge(options, params);
}
var pieces = key.split('/');
if (pieces.length < 2) {
throw new Vex.RERR('BadArguments', 'Key must have note + octave and an optional glyph: ' + key);
}
var k = pieces[0].toUpperCase();
var value = Flow.keyProperties.note_values[k];
if (!value) throw new Vex.RERR('BadArguments', 'Invalid key name: ' + k);
if (value.octave) pieces[1] = value.octave;
var octave = parseInt(pieces[1], 10);
// Octave_shift is the shift to compensate for clef 8va/8vb.
octave += -1 * options.octave_shift;
var base_index = octave * 7 - 4 * 7;
var line = (base_index + value.index) / 2;
line += Flow.clefProperties(clef).line_shift;
var stroke = 0;
if (line <= 0 && line * 2 % 2 === 0) stroke = 1; // stroke up
if (line >= 6 && line * 2 % 2 === 0) stroke = -1; // stroke down
// Integer value for note arithmetic.
var int_value = typeof value.int_val !== 'undefined' ? octave * 12 + value.int_val : null;
/* Check if the user specified a glyph. */
var code = value.code;
var shift_right = value.shift_right;
if (pieces.length > 2 && pieces[2]) {
var glyph_name = pieces[2].toUpperCase();
var note_glyph = Flow.keyProperties.note_glyph[glyph_name];
if (note_glyph) {
code = note_glyph.code;
shift_right = note_glyph.shift_right;
}
}
return {
key: k,
octave: octave,
line: line,
int_value: int_value,
accidental: value.accidental,
code: code,
stroke: stroke,
shift_right: shift_right,
displaced: false
};
};
Flow.keyProperties.note_values = {
'C': { index: 0, int_val: 0, accidental: null },
'CN': { index: 0, int_val: 0, accidental: 'n' },
'C#': { index: 0, int_val: 1, accidental: '#' },
'C##': { index: 0, int_val: 2, accidental: '##' },
'CB': { index: 0, int_val: -1, accidental: 'b' },
'CBB': { index: 0, int_val: -2, accidental: 'bb' },
'D': { index: 1, int_val: 2, accidental: null },
'DN': { index: 1, int_val: 2, accidental: 'n' },
'D#': { index: 1, int_val: 3, accidental: '#' },
'D##': { index: 1, int_val: 4, accidental: '##' },
'DB': { index: 1, int_val: 1, accidental: 'b' },
'DBB': { index: 1, int_val: 0, accidental: 'bb' },
'E': { index: 2, int_val: 4, accidental: null },
'EN': { index: 2, int_val: 4, accidental: 'n' },
'E#': { index: 2, int_val: 5, accidental: '#' },
'E##': { index: 2, int_val: 6, accidental: '##' },
'EB': { index: 2, int_val: 3, accidental: 'b' },
'EBB': { index: 2, int_val: 2, accidental: 'bb' },
'F': { index: 3, int_val: 5, accidental: null },
'FN': { index: 3, int_val: 5, accidental: 'n' },
'F#': { index: 3, int_val: 6, accidental: '#' },
'F##': { index: 3, int_val: 7, accidental: '##' },
'FB': { index: 3, int_val: 4, accidental: 'b' },
'FBB': { index: 3, int_val: 3, accidental: 'bb' },
'G': { index: 4, int_val: 7, accidental: null },
'GN': { index: 4, int_val: 7, accidental: 'n' },
'G#': { index: 4, int_val: 8, accidental: '#' },
'G##': { index: 4, int_val: 9, accidental: '##' },
'GB': { index: 4, int_val: 6, accidental: 'b' },
'GBB': { index: 4, int_val: 5, accidental: 'bb' },
'A': { index: 5, int_val: 9, accidental: null },
'AN': { index: 5, int_val: 9, accidental: 'n' },
'A#': { index: 5, int_val: 10, accidental: '#' },
'A##': { index: 5, int_val: 11, accidental: '##' },
'AB': { index: 5, int_val: 8, accidental: 'b' },
'ABB': { index: 5, int_val: 7, accidental: 'bb' },
'B': { index: 6, int_val: 11, accidental: null },
'BN': { index: 6, int_val: 11, accidental: 'n' },
'B#': { index: 6, int_val: 12, accidental: '#' },
'B##': { index: 6, int_val: 13, accidental: '##' },
'BB': { index: 6, int_val: 10, accidental: 'b' },
'BBB': { index: 6, int_val: 9, accidental: 'bb' },
'R': { index: 6, int_val: 9, rest: true }, // Rest
'X': {
index: 6,
accidental: '',
octave: 4,
code: 'v3e',
shift_right: 5.5
}
};
Flow.keyProperties.note_glyph = {
/* Diamond */
'D0': { code: 'v27', shift_right: -0.5 },
'D1': { code: 'v2d', shift_right: -0.5 },
'D2': { code: 'v22', shift_right: -0.5 },
'D3': { code: 'v70', shift_right: -0.5 },
/* Triangle */
'T0': { code: 'v49', shift_right: -2 },
'T1': { code: 'v93', shift_right: 0.5 },
'T2': { code: 'v40', shift_right: 0.5 },
'T3': { code: 'v7d', shift_right: 0.5 },
/* Cross */
'X0': { code: 'v92', shift_right: -2 },
'X1': { code: 'v95', shift_right: -0.5 },
'X2': { code: 'v7f', shift_right: 0.5 },
'X3': { code: 'v3b', shift_right: -2 }
};
Flow.integerToNote = function (integer) {
if (typeof integer === 'undefined') {
throw new Vex.RERR('BadArguments', 'Undefined integer for integerToNote');
}
if (integer < -2) {
throw new Vex.RERR('BadArguments', 'integerToNote requires integer > -2: ' + integer);
}
var noteValue = Flow.integerToNote.table[integer];
if (!noteValue) {
throw new Vex.RERR('BadArguments', 'Unknown note value for integer: ' + integer);
}
return noteValue;
};
Flow.integerToNote.table = {
0: 'C',
1: 'C#',
2: 'D',
3: 'D#',
4: 'E',
5: 'F',
6: 'F#',
7: 'G',
8: 'G#',
9: 'A',
10: 'A#',
11: 'B'
};
Flow.tabToGlyph = function (fret) {
var glyph = null;
var width = 0;
var shift_y = 0;
if (fret.toString().toUpperCase() === 'X') {
glyph = 'v7f';
width = 7;
shift_y = -4.5;
} else {
width = Flow.textWidth(fret.toString());
}
return {
text: fret,
code: glyph,
width: width,
shift_y: shift_y
};
};
Flow.textWidth = function (text) {
return 6 * text.toString().length;
};
Flow.articulationCodes = function (artic) {
return Flow.articulationCodes.articulations[artic];
};
Flow.articulationCodes.articulations = {
'a.': { // Staccato
code: 'v23',
width: 4,
shift_right: -2,
shift_up: 8,
shift_down: 0,
between_lines: true
},
'av': { // Staccatissimo
code: 'v28',
width: 4,
shift_right: 0,
shift_up: 11,
shift_down: 5,
between_lines: true
},
'a>': { // Accent
code: 'v42',
width: 10,
shift_right: 5,
shift_up: 8,
shift_down: 1,
between_lines: true
},
'a-': { // Tenuto
code: 'v25',
width: 9,
shift_right: -4,
shift_up: 17,
shift_down: 10,
between_lines: true
},
'a^': { // Marcato
code: 'va',
width: 8,
shift_right: 0,
shift_up: -4,
shift_down: -2,
between_lines: false
},
'a+': { // Left hand pizzicato
code: 'v8b',
width: 9,
shift_right: -4,
shift_up: 12,
shift_down: 12,
between_lines: false
},
'ao': { // Snap pizzicato
code: 'v94',
width: 8,
shift_right: 0,
shift_up: -4,
shift_down: 6,
between_lines: false
},
'ah': { // Natural harmonic or open note
code: 'vb9',
width: 7,
shift_right: 0,
shift_up: -4,
shift_down: 4,
between_lines: false
},
'a@a': { // Fermata above staff
code: 'v43',
width: 25,
shift_right: 0,
shift_up: 8,
shift_down: 10,
between_lines: false
},
'a@u': { // Fermata below staff
code: 'v5b',
width: 25,
shift_right: 0,
shift_up: 0,
shift_down: -4,
between_lines: false
},
'a|': { // Bow up - up stroke
code: 'v75',
width: 8,
shift_right: 0,
shift_up: 8,
shift_down: 10,
between_lines: false
},
'am': { // Bow down - down stroke
code: 'v97',
width: 13,
shift_right: 0,
shift_up: 10,
shift_down: 12,
between_lines: false
},
'a,': { // Choked
code: 'vb3',
width: 6,
shift_right: 8,
shift_up: -4,
shift_down: 4,
between_lines: false
}
};
Flow.accidentalCodes = function (acc) {
return Flow.accidentalCodes.accidentals[acc];
};
Flow.accidentalCodes.accidentals = {
'#': {
code: 'v18',
width: 10,
gracenote_width: 4.5,
shift_right: 0,
shift_down: 0
},
'##': {
code: 'v7f',
width: 13,
gracenote_width: 6,
shift_right: -1,
shift_down: 0
},
'b': {
code: 'v44',
width: 8,
gracenote_width: 4.5,
shift_right: 0,
shift_down: 0
},
'bb': {
code: 'v26',
width: 14,
gracenote_width: 8,
shift_right: -3,
shift_down: 0
},
'n': {
code: 'v4e',
width: 8,
gracenote_width: 4.5,
shift_right: 0,
shift_down: 0
},
'{': { // Left paren for cautionary accidentals
code: 'v9c',
width: 5,
shift_right: 2,
shift_down: 0
},
'}': { // Right paren for cautionary accidentals
code: 'v84',
width: 5,
shift_right: 0,
shift_down: 0
},
'db': {
code: 'v9e',
width: 16,
shift_right: 0,
shift_down: 0
},
'd': {
code: 'vab',
width: 10,
shift_right: 0,
shift_down: 0
},
'bbs': {
code: 'v90',
width: 13,
shift_right: 0,
shift_down: 0
},
'++': {
code: 'v51',
width: 13,
shift_right: 0,
shift_down: 0
},
'+': {
code: 'v78',
width: 8,
shift_right: 0,
shift_down: 0
},
'+-': {
code: 'v8d',
width: 7,
shift_right: 0,
shift_down: 0
},
'++-': {
code: 'v7a',
width: 10,
shift_right: 0,
shift_down: 0
},
'bs': {
code: 'vb7',
width: 10,
shift_right: 0,
shift_down: 0
},
'bss': {
code: 'v39',
width: 10,
shift_right: 0,
shift_down: 0
}
};
Flow.accidentalColumnsTable = {
1: { a: [1], b: [1] },
2: { a: [1, 2] },
3: { a: [1, 3, 2], b: [1, 2, 1], second_on_bottom: [1, 2, 3] },
4: { a: [1, 3, 4, 2], b: [1, 2, 3, 1], spaced_out_tetrachord: [1, 2, 1, 2] },
5: { a: [1, 3, 5, 4, 2], b: [1, 2, 4, 3, 1],
spaced_out_pentachord: [1, 2, 3, 2, 1],
very_spaced_out_pentachord: [1, 2, 1, 2, 1] },
6: { a: [1, 3, 5, 6, 4, 2], b: [1, 2, 4, 5, 3, 1],
spaced_out_hexachord: [1, 3, 2, 1, 3, 2],
very_spaced_out_hexachord: [1, 2, 1, 2, 1, 2] }
};
Flow.ornamentCodes = function (acc) {
return Flow.ornamentCodes.ornaments[acc];
};
Flow.ornamentCodes.ornaments = {
'mordent': {
code: 'v1e',
shift_right: 1,
shift_up: 0,
shift_down: 5,
width: 14
},
'mordent_inverted': {
code: 'v45',
shift_right: 1,
shift_up: 0,
shift_down: 5,
width: 14
},
'turn': {
code: 'v72',
shift_right: 1,
shift_up: 0,
shift_down: 5,
width: 20
},
'turn_inverted': {
code: 'v33',
shift_right: 1,
shift_up: 0,
shift_down: 6,
width: 20
},
'tr': {
code: 'v1f',
shift_right: 0,
shift_up: 5,
shift_down: 15,
width: 10
},
'upprall': {
code: 'v60',
shift_right: 1,
shift_up: -3,
shift_down: 6,
width: 20
},
'downprall': {
code: 'vb4',
shift_right: 1,
shift_up: -3,
shift_down: 6,
width: 20
},
'prallup': {
code: 'v6d',
shift_right: 1,
shift_up: -3,
shift_down: 6,
width: 20
},
'pralldown': {
code: 'v2c',
shift_right: 1,
shift_up: -3,
shift_down: 6,
width: 20
},
'upmordent': {
code: 'v29',
shift_right: 1,
shift_up: -3,
shift_down: 6,
width: 20
},
'downmordent': {
code: 'v68',
shift_right: 1,
shift_up: -3,
shift_down: 6,
width: 20
},
'lineprall': {
code: 'v20',
shift_right: 1,
shift_up: -3,
shift_down: 6,
width: 20
},
'prallprall': {
code: 'v86',
shift_right: 1,
shift_up: -3,
shift_down: 6,
width: 20
}
};
Flow.keySignature = function (spec) {
var keySpec = Flow.keySignature.keySpecs[spec];
if (!keySpec) {
throw new Vex.RERR('BadKeySignature', "Bad key signature spec: '" + spec + "'");
}
if (!keySpec.acc) {
return [];
}
var notes = Flow.keySignature.accidentalList(keySpec.acc);
var acc_list = [];
for (var i = 0; i < keySpec.num; ++i) {
var line = notes[i];
acc_list.push({ type: keySpec.acc, line: line });
}
return acc_list;
};
Flow.keySignature.keySpecs = {
'C': { acc: null, num: 0 },
'Am': { acc: null, num: 0 },
'F': { acc: 'b', num: 1 },
'Dm': { acc: 'b', num: 1 },
'Bb': { acc: 'b', num: 2 },
'Gm': { acc: 'b', num: 2 },
'Eb': { acc: 'b', num: 3 },
'Cm': { acc: 'b', num: 3 },
'Ab': { acc: 'b', num: 4 },
'Fm': { acc: 'b', num: 4 },
'Db': { acc: 'b', num: 5 },
'Bbm': { acc: 'b', num: 5 },
'Gb': { acc: 'b', num: 6 },
'Ebm': { acc: 'b', num: 6 },
'Cb': { acc: 'b', num: 7 },
'Abm': { acc: 'b', num: 7 },
'G': { acc: '#', num: 1 },
'Em': { acc: '#', num: 1 },
'D': { acc: '#', num: 2 },
'Bm': { acc: '#', num: 2 },
'A': { acc: '#', num: 3 },
'F#m': { acc: '#', num: 3 },
'E': { acc: '#', num: 4 },
'C#m': { acc: '#', num: 4 },
'B': { acc: '#', num: 5 },
'G#m': { acc: '#', num: 5 },
'F#': { acc: '#', num: 6 },
'D#m': { acc: '#', num: 6 },
'C#': { acc: '#', num: 7 },
'A#m': { acc: '#', num: 7 }
};
Flow.unicode = {
// Unicode accidentals
'sharp': String.fromCharCode(parseInt('266F', 16)),
'flat': String.fromCharCode(parseInt('266D', 16)),
'natural': String.fromCharCode(parseInt('266E', 16)),
// Major Chord
'triangle': String.fromCharCode(parseInt('25B3', 16)),
// half-diminished
'o-with-slash': String.fromCharCode(parseInt('00F8', 16)),
// Diminished
'degrees': String.fromCharCode(parseInt('00B0', 16)),
'circle': String.fromCharCode(parseInt('25CB', 16))
};
Flow.keySignature.accidentalList = function (acc) {
var patterns = {
'b': [2, 0.5, 2.5, 1, 3, 1.5, 3.5],
'#': [0, 1.5, -0.5, 1, 2.5, 0.5, 2]
};
return patterns[acc];
};
Flow.parseNoteDurationString = function (durationString) {
if (typeof durationString !== 'string') {
return null;
}
var regexp = /(\d*\/?\d+|[a-z])(d*)([nrhms]|$)/;
var result = regexp.exec(durationString);
if (!result) {
return null;
}
var duration = result[1];
var dots = result[2].length;
var type = result[3];
if (type.length === 0) {
type = 'n';
}
return {
duration: duration,
dots: dots,
type: type
};
};
Flow.parseNoteData = function (noteData) {
var duration = noteData.duration;
// Preserve backwards-compatibility
var durationStringData = Flow.parseNoteDurationString(duration);
if (!durationStringData) {
return null;
}
var ticks = Flow.durationToTicks(durationStringData.duration);
if (ticks == null) {
return null;
}
var type = noteData.type;
if (type) {
if (!(type === 'n' || type === 'r' || type === 'h' || type === 'm' || type === 's')) {
return null;
}
} else {
type = durationStringData.type;
if (!type) {
type = 'n';
}
}
var dots = noteData.dots ? noteData.dots : durationStringData.dots;
if (typeof dots !== 'number') {
return null;
}
var currentTicks = ticks;
for (var i = 0; i < dots; i++) {
if (currentTicks <= 1) return null;
currentTicks = currentTicks / 2;
ticks += currentTicks;
}
return {
duration: durationStringData.duration,
type: type,
dots: dots,
ticks: ticks
};
};
// Used to convert duration aliases to the number based duration.
// If the input isn't an alias, simply return the input.
//
// example: 'q' -> '4', '8' -> '8'
Flow.sanitizeDuration = function (duration) {
var alias = Flow.durationAliases[duration];
if (alias !== undefined) {
duration = alias;
}
if (Flow.durationToTicks.durations[duration] === undefined) {
throw new Vex.RERR('BadArguments', 'The provided duration is not valid: ' + duration);
}
return duration;
};
// Convert the `duration` to an fraction
Flow.durationToFraction = function (duration) {
return new Fraction().parse(Flow.sanitizeDuration(duration));
};
// Convert the `duration` to an number
Flow.durationToNumber = function (duration) {
return Flow.durationToFraction(duration).value();
};
// Convert the `duration` to total ticks
Flow.durationToTicks = function (duration) {
duration = Flow.sanitizeDuration(duration);
var ticks = Flow.durationToTicks.durations[duration];
if (ticks === undefined) {
return null;
}
return ticks;
};
Flow.durationToTicks.durations = {
'1/2': Flow.RESOLUTION * 2,
'1': Flow.RESOLUTION / 1,
'2': Flow.RESOLUTION / 2,
'4': Flow.RESOLUTION / 4,
'8': Flow.RESOLUTION / 8,
'16': Flow.RESOLUTION / 16,
'32': Flow.RESOLUTION / 32,
'64': Flow.RESOLUTION / 64,
'128': Flow.RESOLUTION / 128,
'256': Flow.RESOLUTION / 256
};
Flow.durationAliases = {
'w': '1',
'h': '2',
'q': '4',
// This is the default duration used to render bars (BarNote). Bars no longer
// consume ticks, so this should be a no-op.
//
// TODO(0xfe): This needs to be cleaned up.
'b': '256'
};
Flow.durationToGlyph = function (duration, type) {
duration = Flow.sanitizeDuration(duration);
var code = Flow.durationToGlyph.duration_codes[duration];
if (code === undefined) {
return null;
}
if (!type) {
type = 'n';
}
var glyphTypeProperties = code.type[type];
if (glyphTypeProperties === undefined) {
return null;
}
return Vex.Merge(Vex.Merge({}, code.common), glyphTypeProperties);
};
Flow.durationToGlyph.duration_codes = {
'1/2': {
common: {
head_width: 22,
stem: false,
stem_offset: 0,
flag: false,
stem_up_extension: -Flow.STEM_HEIGHT,
stem_down_extension: -Flow.STEM_HEIGHT,
gracenote_stem_up_extension: -Flow.STEM_HEIGHT,
gracenote_stem_down_extension: -Flow.STEM_HEIGHT,
tabnote_stem_up_extension: -Flow.STEM_HEIGHT,
tabnote_stem_down_extension: -Flow.STEM_HEIGHT,
dot_shiftY: 0,
line_above: 0,
line_below: 0
},
type: {
'n': { // Breve note
code_head: 'v53'
},
'h': { // Breve note harmonic
code_head: 'v59'
},
'm': { // Breve note muted -
code_head: 'vf',
stem_offset: 0
},
'r': { // Breve rest
code_head: 'v31',
head_width: 24,
rest: true,
position: 'B/5',
dot_shiftY: 0.5
},
's': { // Breve note slash -
// Drawn with canvas primitives
head_width: 15,
position: 'B/4'
}
}
},
'1': {
common: {
head_width: 16,
stem: false,
stem_offset: 0,
flag: false,
stem_up_extension: -Flow.STEM_HEIGHT,
stem_down_extension: -Flow.STEM_HEIGHT,
gracenote_stem_up_extension: -Flow.STEM_HEIGHT,
gracenote_stem_down_extension: -Flow.STEM_HEIGHT,
tabnote_stem_up_extension: -Flow.STEM_HEIGHT,
tabnote_stem_down_extension: -Flow.STEM_HEIGHT,
dot_shiftY: 0,
line_above: 0,
line_below: 0
},
type: {
'n': { // Whole note
code_head: 'v1d'
},
'h': { // Whole note harmonic
code_head: 'v46'
},
'm': { // Whole note muted
code_head: 'v92',
stem_offset: -3
},
'r': { // Whole rest
code_head: 'v5c',
head_width: 12,
rest: true,
position: 'D/5',
dot_shiftY: 0.5
},
's': { // Whole note slash
// Drawn with canvas primitives
head_width: 15,
position: 'B/4'
}
}
},
'2': {
common: {
head_width: 10,
stem: true,
stem_offset: 0,
flag: false,
stem_up_extension: 0,
stem_down_extension: 0,
gracenote_stem_up_extension: -14,
gracenote_stem_down_extension: -14,
tabnote_stem_up_extension: 0,
tabnote_stem_down_extension: 0,
dot_shiftY: 0,
line_above: 0,
line_below: 0
},
type: {
'n': { // Half note
code_head: 'v81'
},
'h': { // Half note harmonic
code_head: 'v2d'
},
'm': { // Half note muted
code_head: 'v95',
stem_offset: -3
},
'r': { // Half rest
code_head: 'vc',
head_width: 12,
stem: false,
rest: true,
position: 'B/4',
dot_shiftY: -0.5
},
's': { // Half note slash
// Drawn with canvas primitives
head_width: 15,
position: 'B/4'
}
}
},
'4': {
common: {
head_width: 10,
stem: true,
stem_offset: 0,
flag: false,
stem_up_extension: 0,
stem_down_extension: 0,
gracenote_stem_up_extension: -14,
gracenote_stem_down_extension: -14,
tabnote_stem_up_extension: 0,
tabnote_stem_down_extension: 0,
dot_shiftY: 0,
line_above: 0,
line_below: 0
},
type: {
'n': { // Quarter note
code_head: 'vb'
},
'h': { // Quarter harmonic
code_head: 'v22'
},
'm': { // Quarter muted
code_head: 'v3e',
stem_offset: -3
},
'r': { // Quarter rest
code_head: 'v7c',
head_width: 8,
stem: false,
rest: true,
position: 'B/4',
dot_shiftY: -0.5,
line_above: 1.5,
line_below: 1.5
},
's': { // Quarter slash
// Drawn with canvas primitives
head_width: 15,
position: 'B/4'
}
}
},
'8': {
common: {
head_width: 10,
stem: true,
stem_offset: 0,
flag: true,
beam_count: 1,
code_flag_upstem: 'v54',
code_flag_downstem: 'v9a',
stem_up_extension: 0,
stem_down_extension: 0,
gracenote_stem_up_extension: -14,
gracenote_stem_down_extension: -14,
tabnote_stem_up_extension: 0,
tabnote_stem_down_extension: 0,
dot_shiftY: 0,
line_above: 0,
line_below: 0
},
type: {
'n': { // Eighth note
code_head: 'vb'
},
'h': { // Eighth note harmonic
code_head: 'v22'
},
'm': { // Eighth note muted
code_head: 'v3e'
},
'r': { // Eighth rest
code_head: 'va5',
stem: false,
flag: false,
rest: true,
position: 'B/4',
dot_shiftY: -0.5,
line_above: 1.0,
line_below: 1.0
},
's': { // Eight slash
// Drawn with canvas primitives
head_width: 15,
position: 'B/4'
}
}
},
'16': {
common: {
beam_count: 2,
head_width: 10,
stem: true,
stem_offset: 0,
flag: true,
code_flag_upstem: 'v3f',
code_flag_downstem: 'v8f',
stem_up_extension: 4,
stem_down_extension: 0,
gracenote_stem_up_extension: -14,
gracenote_stem_down_extension: -14,
tabnote_stem_up_extension: 0,
tabnote_stem_down_extension: 0,
dot_shiftY: 0,
line_above: 0,
line_below: 0
},
type: {
'n': { // Sixteenth note
code_head: 'vb'
},
'h': { // Sixteenth note harmonic
code_head: 'v22'
},
'm': { // Sixteenth note muted
code_head: 'v3e'
},
'r': { // Sixteenth rest
code_head: 'v3c',
head_width: 13,
stem: false,
flag: false,
rest: true,
position: 'B/4',
dot_shiftY: -0.5,
line_above: 1.0,
line_below: 2.0
},
's': { // Sixteenth slash
// Drawn with canvas primitives
head_width: 15,
position: 'B/4'
}
}
},
'32': {
common: {
beam_count: 3,
head_width: 10,
stem: true,
stem_offset: 0,
flag: true,
code_flag_upstem: 'v47',
code_flag_downstem: 'v2a',
stem_up_extension: 13,
stem_down_extension: 9,
gracenote_stem_up_extension: -12,
gracenote_stem_down_extension: -12,
tabnote_stem_up_extension: 9,
tabnote_stem_down_extension: 5,
dot_shiftY: 0,
line_above: 0,
line_below: 0
},
type: {
'n': { // Thirty-second note
code_head: 'vb'
},
'h': { // Thirty-second harmonic
code_head: 'v22'
},
'm': { // Thirty-second muted
code_head: 'v3e'
},
'r': { // Thirty-second rest
code_head: 'v55',
head_width: 16,
stem: false,
flag: false,
rest: true,
position: 'B/4',
dot_shiftY: -1.5,
line_above: 2.0,
line_below: 2.0
},
's': { // Thirty-second slash
// Drawn with canvas primitives
head_width: 15,
position: 'B/4'
}
}
},
'64': {
common: {
beam_count: 4,
head_width: 10,
stem: true,
stem_offset: 0,
flag: true,
code_flag_upstem: 'va9',
code_flag_downstem: 'v58',
stem_up_extension: 17,
stem_down_extension: 13,
gracenote_stem_up_extension: -10,
gracenote_stem_down_extension: -10,
tabnote_stem_up_extension: 13,
tabnote_stem_down_extension: 9,
dot_shiftY: 0,
line_above: 0,
line_below: 0
},
type: {
'n': { // Sixty-fourth note
code_head: 'vb'
},
'h': { // Sixty-fourth harmonic
code_head: 'v22'
},
'm': { // Sixty-fourth muted
code_head: 'v3e'
},
'r': { // Sixty-fourth rest
code_head: 'v38',
head_width: 18,
stem: false,
flag: false,
rest: true,
position: 'B/4',
dot_shiftY: -1.5,
line_above: 2.0,
line_below: 3.0
},
's': { // Sixty-fourth slash
// Drawn with canvas primitives
head_width: 15,
position: 'B/4'
}
}
},
'128': {
common: {
beam_count: 5,
head_width: 10,
stem: true,
stem_offset: 0,
flag: true,
code_flag_upstem: 'v9b',
code_flag_downstem: 'v30',
stem_up_extension: 26,
stem_down_extension: 22,
gracenote_stem_up_extension: -8,
gracenote_stem_down_extension: -8,
tabnote_stem_up_extension: 22,
tabnote_stem_down_extension: 18,
dot_shiftY: 0,
line_above: 0,
line_below: 0
},
type: {
'n': { // Hundred-twenty-eight note
code_head: 'vb'
},
'h': { // Hundred-twenty-eight harmonic
code_head: 'v22'
},
'm': { // Hundred-twenty-eight muted
code_head: 'v3e'
},
'r': { // Hundred-twenty-eight rest
code_head: 'vaa',
head_width: 20,
stem: false,
flag: false,
rest: true,
position: 'B/4',
dot_shiftY: 1.5,
line_above: 3.0,
line_below: 3.0
},
's': { // Hundred-twenty-eight rest
// Drawn with canvas primitives
head_width: 15,
position: 'B/4'
}
}
}
};
// Some defaults
Flow.TIME4_4 = {
num_beats: 4,
beat_value: 4,
resolution: Flow.RESOLUTION
};
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
// Mohit Muthanna <mohit@muthanna.com>
//
// A rendering context for the Raphael backend.
//
// Copyright Mohit Cheppudira 2010
/** @constructor */
var CanvasContext = function () {
createClass(CanvasContext, null, [{
key: 'WIDTH',
get: function get() {
return 600;
}
}, {
key: 'HEIGHT',
get: function get() {
return 400;
}
}]);
function CanvasContext(context) {
classCallCheck(this, CanvasContext);
// Use a name that is unlikely to clash with a canvas context
// property
this.vexFlowCanvasContext = context;
if (!context.canvas) {
this.canvas = {
width: CanvasContext.WIDTH,
height: CanvasContext.HEIGHT
};
} else {
this.canvas = context.canvas;
}
}
createClass(CanvasContext, [{
key: 'clear',
value: function clear() {
this.vexFlowCanvasContext.clearRect(0, 0, this.canvas.width, this.canvas.height);
}
// Containers not implemented
}, {
key: 'openGroup',
value: function openGroup() {}
}, {
key: 'closeGroup',
value: function closeGroup() {}
}, {
key: 'add',
value: function add() {}
}, {
key: 'setFont',
value: function setFont(family, size, weight) {
this.vexFlowCanvasContext.font = (weight || '') + ' ' + size + 'pt ' + family;
return this;
}
}, {
key: 'setRawFont',
value: function setRawFont(font) {
this.vexFlowCanvasContext.font = font;
return this;
}
}, {
key: 'setFillStyle',
value: function setFillStyle(style) {
this.vexFlowCanvasContext.fillStyle = style;
return this;
}
}, {
key: 'setBackgroundFillStyle',
value: function setBackgroundFillStyle(style) {
this.background_fillStyle = style;
return this;
}
}, {
key: 'setStrokeStyle',
value: function setStrokeStyle(style) {
this.vexFlowCanvasContext.strokeStyle = style;
return this;
}
}, {
key: 'setShadowColor',
value: function setShadowColor(style) {
this.vexFlowCanvasContext.shadowColor = style;
return this;
}
}, {
key: 'setShadowBlur',
value: function setShadowBlur(blur) {
this.vexFlowCanvasContext.shadowBlur = blur;
return this;
}
}, {
key: 'setLineWidth',
value: function setLineWidth(width) {
this.vexFlowCanvasContext.lineWidth = width;
return this;
}
}, {
key: 'setLineCap',
value: function setLineCap(cap_type) {
this.vexFlowCanvasContext.lineCap = cap_type;
return this;
}
// setLineDash: is the one native method in a canvas context
// that begins with set, therefore we don't bolster the method
// if it already exists (see renderer.bolsterCanvasContext).
// If it doesn't exist, we bolster it and assume it's looking for
// a ctx.lineDash method, as previous versions of VexFlow
// expected.
}, {
key: 'setLineDash',
value: function setLineDash(dash) {
this.vexFlowCanvasContext.lineDash = dash;
return this;
}
}, {
key: 'scale',
value: function scale(x, y) {
return this.vexFlowCanvasContext.scale(parseFloat(x), parseFloat(y));
}
}, {
key: 'resize',
value: function resize(width, height) {
return this.vexFlowCanvasContext.resize(parseInt(width, 10), parseInt(height, 10));
}
}, {
key: 'rect',
value: function rect(x, y, width, height) {
return this.vexFlowCanvasContext.rect(x, y, width, height);
}
}, {
key: 'fillRect',
value: function fillRect(x, y, width, height) {
return this.vexFlowCanvasContext.fillRect(x, y, width, height);
}
}, {
key: 'clearRect',
value: function clearRect(x, y, width, height) {
return this.vexFlowCanvasContext.clearRect(x, y, width, height);
}
}, {
key: 'beginPath',
value: function beginPath() {
return this.vexFlowCanvasContext.beginPath();
}
}, {
key: 'moveTo',
value: function moveTo(x, y) {
return this.vexFlowCanvasContext.moveTo(x, y);
}
}, {
key: 'lineTo',
value: function lineTo(x, y) {
return this.vexFlowCanvasContext.lineTo(x, y);
}
}, {
key: 'bezierCurveTo',
value: function bezierCurveTo(x1, y1, x2, y2, x, y) {
return this.vexFlowCanvasContext.bezierCurveTo(x1, y1, x2, y2, x, y);
}
}, {
key: 'quadraticCurveTo',
value: function quadraticCurveTo(x1, y1, x, y) {
return this.vexFlowCanvasContext.quadraticCurveTo(x1, y1, x, y);
}
// This is an attempt (hack) to simulate the HTML5 canvas
// arc method.
}, {
key: 'arc',
value: function arc(x, y, radius, startAngle, endAngle, antiClockwise) {
return this.vexFlowCanvasContext.arc(x, y, radius, startAngle, endAngle, antiClockwise);
}
// Adapted from the source for Raphael's Element.glow
}, {
key: 'glow',
value: function glow() {
return this.vexFlowCanvasContext.glow();
}
}, {
key: 'fill',
value: function fill() {
return this.vexFlowCanvasContext.fill();
}
}, {
key: 'stroke',
value: function stroke() {
return this.vexFlowCanvasContext.stroke();
}
}, {
key: 'closePath',
value: function closePath() {
return this.vexFlowCanvasContext.closePath();
}
}, {
key: 'measureText',
value: function measureText(text) {
return this.vexFlowCanvasContext.measureText(text);
}
}, {
key: 'fillText',
value: function fillText(text, x, y) {
return this.vexFlowCanvasContext.fillText(text, x, y);
}
}, {
key: 'save',
value: function save() {
return this.vexFlowCanvasContext.save();
}
}, {
key: 'restore',
value: function restore() {
return this.vexFlowCanvasContext.restore();
}
}]);
return CanvasContext;
}();
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
// A rendering context for the Raphael backend.
//
// ## Warning: Deprecated for SVGContext
// Except in instances where SVG support for IE < 9.0 is
// needed, SVGContext is recommended.
var RaphaelContext = function () {
function RaphaelContext(element) {
classCallCheck(this, RaphaelContext);
this.element = element;
this.paper = Raphael(element); // eslint-disable-line
this.path = '';
this.pen = { x: 0, y: 0 };
this.lineWidth = 1.0;
this.state = {
scale: { x: 1, y: 1 },
font_family: 'Arial',
font_size: 8,
font_weight: 800
};
this.attributes = {
'stroke-width': 0.3,
'fill': 'black',
'stroke': 'black',
'font': '10pt Arial'
};
this.background_attributes = {
'stroke-width': 0,
'fill': 'white',
'stroke': 'white',
'font': '10pt Arial'
};
this.shadow_attributes = {
width: 0,
color: 'black'
};
this.state_stack = [];
}
// Containers not implemented
createClass(RaphaelContext, [{
key: 'openGroup',
value: function openGroup() {}
}, {
key: 'closeGroup',
value: function closeGroup() {}
}, {
key: 'add',
value: function add() {}
}, {
key: 'setFont',
value: function setFont(family, size, weight) {
this.state.font_family = family;
this.state.font_size = size;
this.state.font_weight = weight;
this.attributes.font = (this.state.font_weight || '') + ' ' + this.state.font_size * this.state.scale.x + 'pt ' + this.state.font_family;
return this;
}
}, {
key: 'setRawFont',
value: function setRawFont(font) {
this.attributes.font = font;
return this;
}
}, {
key: 'setFillStyle',
value: function setFillStyle(style) {
this.attributes.fill = style;
return this;
}
}, {
key: 'setBackgroundFillStyle',
value: function setBackgroundFillStyle(style) {
this.background_attributes.fill = style;
this.background_attributes.stroke = style;
return this;
}
}, {
key: 'setStrokeStyle',
value: function setStrokeStyle(style) {
this.attributes.stroke = style;
return this;
}
}, {
key: 'setShadowColor',
value: function setShadowColor(style) {
this.shadow_attributes.color = style;
return this;
}
}, {
key: 'setShadowBlur',
value: function setShadowBlur(blur) {
this.shadow_attributes.width = blur;
return this;
}
}, {
key: 'setLineWidth',
value: function setLineWidth(width) {
this.attributes['stroke-width'] = width;
this.lineWidth = width;
}
// Empty because there is no equivalent in SVG
}, {
key: 'setLineDash',
value: function setLineDash() {
return this;
}
}, {
key: 'setLineCap',
value: function setLineCap() {
return this;
}
}, {
key: 'scale',
value: function scale(x, y) {
this.state.scale = { x: x, y: y };
// The scale() method is deprecated as of Raphael.JS 2.0, and
// can no longer be used as an option in an Element.attr() call.
// It is preserved here for users running earlier versions of
// Raphael.JS, though it has no effect on the SVG output in
// Raphael 2 and higher.
this.attributes.transform = 'S' + x + ',' + y + ',0,0';
this.attributes.scale = x + ',' + y + ',0,0';
this.attributes.font = this.state.font_size * this.state.scale.x + 'pt ' + this.state.font_family;
this.background_attributes.transform = 'S' + x + ',' + y + ',0,0';
this.background_attributes.font = this.state.font_size * this.state.scale.x + 'pt ' + this.state.font_family;
return this;
}
}, {
key: 'clear',
value: function clear() {
this.paper.clear();
}
}, {
key: 'resize',
value: function resize(width, height) {
this.element.style.width = width;
this.paper.setSize(width, height);
return this;
}
// Sets the SVG `viewBox` property, which results in auto scaling images when its container
// is resized.
//
// Usage: `ctx.setViewBox("0 0 600 400")`
}, {
key: 'setViewBox',
value: function setViewBox(viewBox) {
this.paper.canvas.setAttribute('viewBox', viewBox);
}
}, {
key: 'rect',
value: function rect(x, y, width, height) {
if (height < 0) {
y += height;
height = -height;
}
this.paper.rect(x, y, width - 0.5, height - 0.5).attr(this.attributes).attr('fill', 'none').attr('stroke-width', this.lineWidth);
return this;
}
}, {
key: 'fillRect',
value: function fillRect(x, y, width, height) {
if (height < 0) {
y += height;
height = -height;
}
this.paper.rect(x, y, width - 0.5, height - 0.5).attr(this.attributes);
return this;
}
}, {
key: 'clearRect',
value: function clearRect(x, y, width, height) {
if (height < 0) {
y += height;
height = -height;
}
this.paper.rect(x, y, width - 0.5, height - 0.5).attr(this.background_attributes);
return this;
}
}, {
key: 'beginPath',
value: function beginPath() {
this.path = '';
this.pen.x = 0;
this.pen.y = 0;
return this;
}
}, {
key: 'moveTo',
value: function moveTo(x, y) {
this.path += 'M' + x + ',' + y;
this.pen.x = x;
this.pen.y = y;
return this;
}
}, {
key: 'lineTo',
value: function lineTo(x, y) {
this.path += 'L' + x + ',' + y;
this.pen.x = x;
this.pen.y = y;
return this;
}
}, {
key: 'bezierCurveTo',
value: function bezierCurveTo(x1, y1, x2, y2, x, y) {
this.path += 'C' + x1 + ',' + y1 + ',' + x2 + ',' + y2 + ',' + x + ',' + y;
this.pen.x = x;
this.pen.y = y;
return this;
}
}, {
key: 'quadraticCurveTo',
value: function quadraticCurveTo(x1, y1, x, y) {
this.path += 'Q' + x1 + ',' + y1 + ',' + x + ',' + y;
this.pen.x = x;
this.pen.y = y;
return this;
}
// This is an attempt (hack) to simulate the HTML5 canvas
// arc method.
}, {
key: 'arc',
value: function arc(x, y, radius, startAngle, endAngle, antiClockwise) {
function normalizeAngle(angle) {
while (angle < 0) {
angle += Math.PI * 2;
}
while (angle > Math.PI * 2) {
angle -= Math.PI * 2;
}
return angle;
}
startAngle = normalizeAngle(startAngle);
endAngle = normalizeAngle(endAngle);
if (startAngle > endAngle) {
var tmp = startAngle;
startAngle = endAngle;
endAngle = tmp;
antiClockwise = !antiClockwise;
}
var delta = endAngle - startAngle;
if (delta > Math.PI) {
this.arcHelper(x, y, radius, startAngle, startAngle + delta / 2, antiClockwise);
this.arcHelper(x, y, radius, startAngle + delta / 2, endAngle, antiClockwise);
} else {
this.arcHelper(x, y, radius, startAngle, endAngle, antiClockwise);
}
return this;
}
}, {
key: 'arcHelper',
value: function arcHelper(x, y, radius, startAngle, endAngle, antiClockwise) {
var x1 = x + radius * Math.cos(startAngle);
var y1 = y + radius * Math.sin(startAngle);
var x2 = x + radius * Math.cos(endAngle);
var y2 = y + radius * Math.sin(endAngle);
var largeArcFlag = 0;
var sweepFlag = 0;
if (antiClockwise) {
sweepFlag = 1;
if (endAngle - startAngle < Math.PI) {
largeArcFlag = 1;
}
} else if (endAngle - startAngle > Math.PI) {
largeArcFlag = 1;
}
this.path += 'M' + x1 + ',' + y1 + ',A' + radius + ',' + radius + ',0,' + largeArcFlag + ',' + sweepFlag + ',' + x2 + ',' + y2 + 'M' + this.pen.x + ',' + this.pen.y;
}
// Adapted from the source for Raphael's Element.glow
}, {
key: 'glow',
value: function glow() {
var out = this.paper.set();
if (this.shadow_attributes.width > 0) {
var sa = this.shadow_attributes;
var num_paths = sa.width / 2;
for (var i = 1; i <= num_paths; i++) {
out.push(this.paper.path(this.path).attr({
stroke: sa.color,
'stroke-linejoin': 'round',
'stroke-linecap': 'round',
'stroke-width': +(sa.width / num_paths * i).toFixed(3),
opacity: +((sa.opacity || 0.3) / num_paths).toFixed(3),
// See note in this.scale(): In Raphael the scale() method
// is deprecated and removed as of Raphael 2.0 and replaced
// by the transform() method. It is preserved here for
// users with earlier versions of Raphael, but has no effect
// on the output SVG in Raphael 2.0+.
transform: this.attributes.transform,
scale: this.attributes.scale
}));
}
}
return out;
}
}, {
key: 'fill',
value: function fill() {
var elem = this.paper.path(this.path).attr(this.attributes).attr('stroke-width', 0);
this.glow(elem);
return this;
}
}, {
key: 'stroke',
value: function stroke() {
// The first line of code below is, unfortunately, a bit of a hack:
// Raphael's transform() scaling does not scale the stroke-width, so
// in order to scale a stroke, we have to manually scale the
// stroke-width.
//
// This works well so long as the X & Y states for this.scale() are
// relatively similar. However, if they are very different, we
// would expect horizontal and vertical lines to have different
// stroke-widths.
//
// In the future, if we want to support very divergent values for
// horizontal and vertical scaling, we may want to consider
// implementing SVG scaling with properties of the SVG viewBox &
// viewPort and removing it entirely from the Element.attr() calls.
// This would more closely parallel the approach taken in
// canvascontext.js as well.
var strokeWidth = this.lineWidth * (this.state.scale.x + this.state.scale.y) / 2;
var elem = this.paper.path(this.path).attr(this.attributes).attr('fill', 'none').attr('stroke-width', strokeWidth);
this.glow(elem);
return this;
}
}, {
key: 'closePath',
value: function closePath() {
this.path += 'Z';
return this;
}
}, {
key: 'measureText',
value: function measureText(text) {
var txt = this.paper.text(0, 0, text).attr(this.attributes).attr('fill', 'none').attr('stroke', 'none');
var bounds = txt.getBBox();
txt.remove();
return {
width: bounds.width,
height: bounds.height
};
}
}, {
key: 'fillText',
value: function fillText(text, x, y) {
this.paper.text(x + this.measureText(text).width / 2, y - this.state.font_size / (2.25 * this.state.scale.y), text).attr(this.attributes);
return this;
}
}, {
key: 'save',
value: function save() {
// TODO(mmuthanna): State needs to be deep-copied.
this.state_stack.push({
state: {
font_family: this.state.font_family
},
attributes: {
font: this.attributes.font,
fill: this.attributes.fill,
stroke: this.attributes.stroke,
'stroke-width': this.attributes['stroke-width']
},
shadow_attributes: {
width: this.shadow_attributes.width,
color: this.shadow_attributes.color
}
});
return this;
}
}, {
key: 'restore',
value: function restore() {
// TODO(0xfe): State needs to be deep-restored.
var state = this.state_stack.pop();
this.state.font_family = state.state.font_family;
this.attributes.font = state.attributes.font;
this.attributes.fill = state.attributes.fill;
this.attributes.stroke = state.attributes.stroke;
this.attributes['stroke-width'] = state.attributes['stroke-width'];
this.shadow_attributes.width = state.shadow_attributes.width;
this.shadow_attributes.color = state.shadow_attributes.color;
return this;
}
}]);
return RaphaelContext;
}();
var SVGContext = function () {
function SVGContext(element) {
classCallCheck(this, SVGContext);
// element is the parent DOM object
this.element = element;
// Create the SVG in the SVG namespace:
this.svgNS = 'http://www.w3.org/2000/svg';
var svg = this.create('svg');
// Add it to the canvas:
this.element.appendChild(svg);
// Point to it:
this.svg = svg;
this.groups = [this.svg]; // Create the group stack
this.parent = this.svg;
this.path = '';
this.pen = { x: 0, y: 0 };
this.lineWidth = 1.0;
this.state = {
scale: { x: 1, y: 1 },
'font-family': 'Arial',
'font-size': '8pt',
'font-weight': 'normal'
};
this.attributes = {
'stroke-width': 0.3,
'fill': 'black',
'stroke': 'black',
'stroke-dasharray': 'none',
'font-family': 'Arial',
'font-size': '10pt',
'font-weight': 'normal',
'font-style': 'normal'
};
this.background_attributes = {
'stroke-width': 0,
'fill': 'white',
'stroke': 'white',
'stroke-dasharray': 'none',
'font-family': 'Arial',
'font-size': '10pt',
'font-weight': 'normal',
'font-style': 'normal'
};
this.shadow_attributes = {
width: 0,
color: 'black'
};
this.state_stack = [];
// Test for Internet Explorer
this.iePolyfill();
}
createClass(SVGContext, [{
key: 'create',
value: function create(svgElementType) {
return document.createElementNS(this.svgNS, svgElementType);
}
// Allow grouping elements in containers for interactivity.
}, {
key: 'openGroup',
value: function openGroup(cls, id, attrs) {
var group = this.create('g');
this.groups.push(group);
this.parent.appendChild(group);
this.parent = group;
if (cls) group.setAttribute('class', Vex.Prefix(cls));
if (id) group.setAttribute('id', Vex.Prefix(id));
if (attrs && attrs.pointerBBox) {
group.setAttribute('pointer-events', 'bounding-box');
}
return group;
}
}, {
key: 'closeGroup',
value: function closeGroup() {
this.groups.pop();
this.parent = this.groups[this.groups.length - 1];
}
}, {
key: 'add',
value: function add(elem) {
this.parent.appendChild(elem);
}
// Tests if the browser is Internet Explorer; if it is,
// we do some tricks to improve text layout. See the
// note at ieMeasureTextFix() for details.
}, {
key: 'iePolyfill',
value: function iePolyfill() {
if (typeof navigator !== 'undefined') {
this.ie = /MSIE 9/i.test(navigator.userAgent) || /MSIE 10/i.test(navigator.userAgent) || /rv:11\.0/i.test(navigator.userAgent) || /Trident/i.test(navigator.userAgent);
}
}
// ### Styling & State Methods:
}, {
key: 'setFont',
value: function setFont(family, size, weight) {
// Unlike canvas, in SVG italic is handled by font-style,
// not weight. So: we search the weight argument and
// apply bold and italic to weight and style respectively.
var bold = false;
var italic = false;
var style = 'normal';
// Weight might also be a number (200, 400, etc...) so we
// test its type to be sure we have access to String methods.
if (typeof weight === 'string') {
// look for "italic" in the weight:
if (weight.indexOf('italic') !== -1) {
weight = weight.replace(/italic/g, '');
italic = true;
}
// look for "bold" in weight
if (weight.indexOf('bold') !== -1) {
weight = weight.replace(/bold/g, '');
bold = true;
}
// remove any remaining spaces
weight = weight.replace(/ /g, '');
}
weight = bold ? 'bold' : weight;
weight = typeof weight === 'undefined' || weight === '' ? 'normal' : weight;
style = italic ? 'italic' : style;
var fontAttributes = {
'font-family': family,
'font-size': size + 'pt',
'font-weight': weight,
'font-style': style
};
// Store the font size so that if the browser is Internet
// Explorer we can fix its calculations of text width.
this.fontSize = Number(size);
Vex.Merge(this.attributes, fontAttributes);
Vex.Merge(this.state, fontAttributes);
return this;
}
}, {
key: 'setRawFont',
value: function setRawFont(font) {
font = font.trim();
// Assumes size first, splits on space -- which is presently
// how all existing modules are calling this.
var fontArray = font.split(' ');
this.attributes['font-family'] = fontArray[1];
this.state['font-family'] = fontArray[1];
this.attributes['font-size'] = fontArray[0];
this.state['font-size'] = fontArray[0];
// Saves fontSize for IE polyfill
this.fontSize = Number(fontArray[0].match(/\d+/));
return this;
}
}, {
key: 'setFillStyle',
value: function setFillStyle(style) {
this.attributes.fill = style;
return this;
}
}, {
key: 'setBackgroundFillStyle',
value: function setBackgroundFillStyle(style) {
this.background_attributes.fill = style;
this.background_attributes.stroke = style;
return this;
}
}, {
key: 'setStrokeStyle',
value: function setStrokeStyle(style) {
this.attributes.stroke = style;
return this;
}
}, {
key: 'setShadowColor',
value: function setShadowColor(style) {
this.shadow_attributes.color = style;
return this;
}
}, {
key: 'setShadowBlur',
value: function setShadowBlur(blur) {
this.shadow_attributes.width = blur;
return this;
}
}, {
key: 'setLineWidth',
value: function setLineWidth(width) {
this.attributes['stroke-width'] = width;
this.lineWidth = width;
}
// @param array {lineDash} as [dashInt, spaceInt, dashInt, spaceInt, etc...]
}, {
key: 'setLineDash',
value: function setLineDash(lineDash) {
if (Object.prototype.toString.call(lineDash) === '[object Array]') {
lineDash = lineDash.join(', ');
this.attributes['stroke-dasharray'] = lineDash;
return this;
} else {
throw new Vex.RERR('ArgumentError', 'lineDash must be an array of integers.');
}
}
}, {
key: 'setLineCap',
value: function setLineCap(lineCap) {
this.attributes['stroke-linecap'] = lineCap;
return this;
}
// ### Sizing & Scaling Methods:
// TODO (GCR): See note at scale() -- seperate our internal
// conception of pixel-based width/height from the style.width
// and style.height properties eventually to allow users to
// apply responsive sizing attributes to the SVG.
}, {
key: 'resize',
value: function resize(width, height) {
this.width = width;
this.height = height;
this.element.style.width = width;
var attributes = {
width: width,
height: height
};
this.applyAttributes(this.svg, attributes);
return this;
}
}, {
key: 'scale',
value: function scale(x, y) {
// uses viewBox to scale
// TODO (GCR): we may at some point want to distinguish the
// style.width / style.height properties that are applied to
// the SVG object from our internal conception of the SVG
// width/height. This would allow us to create automatically
// scaling SVG's that filled their containers, for instance.
//
// As this isn't implemented in Canvas or Raphael contexts,
// I've left as is for now, but in using the viewBox to
// handle internal scaling, am trying to make it possible
// for us to eventually move in that direction.
this.state.scale = { x: x, y: y };
var visibleWidth = this.width / x;
var visibleHeight = this.height / y;
this.setViewBox(0, 0, visibleWidth, visibleHeight);
return this;
}
}, {
key: 'setViewBox',
value: function setViewBox() {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
// Override for "x y w h" style:
if (args.length === 1) {
var viewBox = args[0];
this.svg.setAttribute('viewBox', viewBox);
} else {
var xMin = args[0];
var yMin = args[1];
var width = args[2];
var height = args[3];
var viewBoxString = xMin + ' ' + yMin + ' ' + width + ' ' + height;
this.svg.setAttribute('viewBox', viewBoxString);
}
}
// ### Drawing helper methods:
}, {
key: 'applyAttributes',
value: function applyAttributes(element, attributes) {
Object.keys(attributes).forEach(function (propertyName) {
return element.setAttributeNS(null, propertyName, attributes[propertyName]);
});
return element;
}
// ### Shape & Path Methods:
}, {
key: 'clear',
value: function clear() {
// Clear the SVG by removing all inner children.
// (This approach is usually slightly more efficient
// than removing the old SVG & adding a new one to
// the container element, since it does not cause the
// container to resize twice. Also, the resize
// triggered by removing the entire SVG can trigger
// a touchcancel event when the element resizes away
// from a touch point.)
while (this.svg.lastChild) {
this.svg.removeChild(this.svg.lastChild);
}
// Replace the viewbox attribute we just removed:
this.scale(this.state.scale.x, this.state.scale.y);
}
// ## Rectangles:
}, {
key: 'rect',
value: function rect(x, y, width, height, attributes) {
// Avoid invalid negative height attribs by
// flipping the rectangle on its head:
if (height < 0) {
y += height;
height *= -1;
}
// Create the rect & style it:
var rectangle = this.create('rect');
if (typeof attributes === 'undefined') {
attributes = {
fill: 'none',
'stroke-width': this.lineWidth,
stroke: 'black'
};
}
Vex.Merge(attributes, {
x: x,
y: y,
width: width,
height: height
});
this.applyAttributes(rectangle, attributes);
this.add(rectangle);
return this;
}
}, {
key: 'fillRect',
value: function fillRect(x, y, width, height) {
if (height < 0) {
y += height;
height *= -1;
}
this.rect(x, y, width - 0.5, height - 0.5, this.attributes);
return this;
}
}, {
key: 'clearRect',
value: function clearRect(x, y, width, height) {
// TODO(GCR): Improve implementation of this...
// Currently it draws a box of the background color, rather
// than creating alpha through lower z-levels.
//
// See the implementation of this in SVGKit:
// http://sourceforge.net/projects/svgkit/
// as a starting point.
//
// Adding a large number of transform paths (as we would
// have to do) could be a real performance hit. Since
// tabNote seems to be the only module that makes use of this
// it may be worth creating a seperate tabStave that would
// draw lines around locations of tablature fingering.
//
this.rect(x, y, width - 0.5, height - 0.5, this.background_attributes);
return this;
}
// ## Paths:
}, {
key: 'beginPath',
value: function beginPath() {
this.path = '';
this.pen.x = 0;
this.pen.y = 0;
return this;
}
}, {
key: 'moveTo',
value: function moveTo(x, y) {
this.path += 'M' + x + ' ' + y;
this.pen.x = x;
this.pen.y = y;
return this;
}
}, {
key: 'lineTo',
value: function lineTo(x, y) {
this.path += 'L' + x + ' ' + y;
this.pen.x = x;
this.pen.y = y;
return this;
}
}, {
key: 'bezierCurveTo',
value: function bezierCurveTo(x1, y1, x2, y2, x, y) {
this.path += 'C' + x1 + ' ' + y1 + ',' + x2 + ' ' + y2 + ',' + x + ' ' + y;
this.pen.x = x;
this.pen.y = y;
return this;
}
}, {
key: 'quadraticCurveTo',
value: function quadraticCurveTo(x1, y1, x, y) {
this.path += 'Q' + x1 + ' ' + y1 + ',' + x + ' ' + y;
this.pen.x = x;
this.pen.y = y;
return this;
}
// This is an attempt (hack) to simulate the HTML5 canvas
// arc method.
}, {
key: 'arc',
value: function arc(x, y, radius, startAngle, endAngle, antiClockwise) {
function normalizeAngle(angle) {
while (angle < 0) {
angle += Math.PI * 2;
}
while (angle > Math.PI * 2) {
angle -= Math.PI * 2;
}
return angle;
}
startAngle = normalizeAngle(startAngle);
endAngle = normalizeAngle(endAngle);
if (startAngle > endAngle) {
var tmp = startAngle;
startAngle = endAngle;
endAngle = tmp;
antiClockwise = !antiClockwise;
}
var delta = endAngle - startAngle;
if (delta > Math.PI) {
this.arcHelper(x, y, radius, startAngle, startAngle + delta / 2, antiClockwise);
this.arcHelper(x, y, radius, startAngle + delta / 2, endAngle, antiClockwise);
} else {
this.arcHelper(x, y, radius, startAngle, endAngle, antiClockwise);
}
return this;
}
}, {
key: 'arcHelper',
value: function arcHelper(x, y, radius, startAngle, endAngle, antiClockwise) {
var x1 = x + radius * Math.cos(startAngle);
var y1 = y + radius * Math.sin(startAngle);
var x2 = x + radius * Math.cos(endAngle);
var y2 = y + radius * Math.sin(endAngle);
var largeArcFlag = 0;
var sweepFlag = 0;
if (antiClockwise) {
sweepFlag = 1;
if (endAngle - startAngle < Math.PI) {
largeArcFlag = 1;
}
} else if (endAngle - startAngle > Math.PI) {
largeArcFlag = 1;
}
this.path += 'M' + x1 + ' ' + y1 + ' A' + radius + ' ' + radius + ' 0 ' + largeArcFlag + ' ' + sweepFlag + ' ' + x2 + ' ' + y2 + 'M' + this.pen.x + ' ' + this.pen.y;
}
}, {
key: 'closePath',
value: function closePath() {
this.path += 'Z';
return this;
}
// Adapted from the source for Raphael's Element.glow
}, {
key: 'glow',
value: function glow() {
// Calculate the width & paths of the glow:
if (this.shadow_attributes.width > 0) {
var sa = this.shadow_attributes;
var num_paths = sa.width / 2;
// Stroke at varying widths to create effect of gaussian blur:
for (var i = 1; i <= num_paths; i++) {
var attributes = {
stroke: sa.color,
'stroke-linejoin': 'round',
'stroke-linecap': 'round',
'stroke-width': +(sa.width * 0.4 / num_paths * i).toFixed(3),
opacity: +((sa.opacity || 0.3) / num_paths).toFixed(3)
};
var path = this.create('path');
attributes.d = this.path;
this.applyAttributes(path, attributes);
this.add(path);
}
}
return this;
}
}, {
key: 'fill',
value: function fill(attributes) {
// If our current path is set to glow, make it glow
this.glow();
var path = this.create('path');
if (typeof attributes === 'undefined') {
attributes = {};
Vex.Merge(attributes, this.attributes);
attributes.stroke = 'none';
}
attributes.d = this.path;
this.applyAttributes(path, attributes);
this.add(path);
return this;
}
}, {
key: 'stroke',
value: function stroke() {
// If our current path is set to glow, make it glow.
this.glow();
var path = this.create('path');
var attributes = {};
Vex.Merge(attributes, this.attributes);
attributes.fill = 'none';
attributes['stroke-width'] = this.lineWidth;
attributes.d = this.path;
this.applyAttributes(path, attributes);
this.add(path);
return this;
}
// ## Text Methods:
}, {
key: 'measureText',
value: function measureText(text) {
var txt = this.create('text');
if (typeof txt.getBBox !== 'function') {
return { x: 0, y: 0, width: 0, height: 0 };
}
txt.textContent = text;
this.applyAttributes(txt, this.attributes);
// Temporarily add it to the document for measurement.
this.svg.appendChild(txt);
var bbox = txt.getBBox();
if (this.ie && text !== '' && this.attributes['font-style'] === 'italic') {
bbox = this.ieMeasureTextFix(bbox, text);
}
this.svg.removeChild(txt);
return bbox;
}
}, {
key: 'ieMeasureTextFix',
value: function ieMeasureTextFix(bbox) {
// Internet Explorer over-pads text in italics,
// resulting in giant width estimates for measureText.
// To fix this, we use this formula, tested against
// ie 11:
// overestimate (in pixels) = FontSize(in pt) * 1.196 + 1.96
// And then subtract the overestimate from calculated width.
var fontSize = Number(this.fontSize);
var m = 1.196;
var b = 1.9598;
var widthCorrection = m * fontSize + b;
var width = bbox.width - widthCorrection;
var height = bbox.height - 1.5;
// Get non-protected copy:
var box = {
x: bbox.x,
y: bbox.y,
width: width,
height: height
};
return box;
}
}, {
key: 'fillText',
value: function fillText(text, x, y) {
var attributes = {};
Vex.Merge(attributes, this.attributes);
attributes.stroke = 'none';
attributes.x = x;
attributes.y = y;
var txt = this.create('text');
txt.textContent = text;
this.applyAttributes(txt, attributes);
this.add(txt);
}
}, {
key: 'save',
value: function save() {
// TODO(mmuthanna): State needs to be deep-copied.
this.state_stack.push({
state: {
'font-family': this.state['font-family'],
'font-weight': this.state['font-weight'],
'font-style': this.state['font-style'],
'font-size': this.state['font-size']
},
attributes: {
'font-family': this.attributes['font-family'],
'font-weight': this.attributes['font-weight'],
'font-style': this.attributes['font-style'],
'font-size': this.attributes['font-size'],
fill: this.attributes.fill,
stroke: this.attributes.stroke,
'stroke-width': this.attributes['stroke-width'],
'stroke-dasharray': this.attributes['stroke-dasharray']
},
shadow_attributes: {
width: this.shadow_attributes.width,
color: this.shadow_attributes.color
}
});
return this;
}
}, {
key: 'restore',
value: function restore() {
// TODO(0xfe): State needs to be deep-restored.
var state = this.state_stack.pop();
this.state['font-family'] = state.state['font-family'];
this.state['font-weight'] = state.state['font-weight'];
this.state['font-style'] = state.state['font-style'];
this.state['font-size'] = state.state['font-size'];
this.attributes['font-family'] = state.attributes['font-family'];
this.attributes['font-weight'] = state.attributes['font-weight'];
this.attributes['font-style'] = state.attributes['font-style'];
this.attributes['font-size'] = state.attributes['font-size'];
this.attributes.fill = state.attributes.fill;
this.attributes.stroke = state.attributes.stroke;
this.attributes['stroke-width'] = state.attributes['stroke-width'];
this.attributes['stroke-dasharray'] = state.attributes['stroke-dasharray'];
this.shadow_attributes.width = state.shadow_attributes.width;
this.shadow_attributes.color = state.shadow_attributes.color;
return this;
}
}]);
return SVGContext;
}();
var lastContext = null;
var Renderer = function () {
createClass(Renderer, null, [{
key: 'buildContext',
value: function buildContext(sel, backend, width, height, background) {
var renderer = new Renderer(sel, backend);
if (width && height) {
renderer.resize(width, height);
}
if (!background) background = '#FFF';
var ctx = renderer.getContext();
ctx.setBackgroundFillStyle(background);
Renderer.lastContext = ctx;
return ctx;
}
}, {
key: 'getCanvasContext',
value: function getCanvasContext(sel, width, height, background) {
return Renderer.buildContext(sel, Renderer.Backends.CANVAS, width, height, background);
}
}, {
key: 'getRaphaelContext',
value: function getRaphaelContext(sel, width, height, background) {
return Renderer.buildContext(sel, Renderer.Backends.RAPHAEL, width, height, background);
}
}, {
key: 'getSVGContext',
value: function getSVGContext(sel, width, height, background) {
return Renderer.buildContext(sel, Renderer.Backends.SVG, width, height, background);
}
}, {
key: 'bolsterCanvasContext',
value: function bolsterCanvasContext(ctx) {
if (Renderer.USE_CANVAS_PROXY) {
return new CanvasContext(ctx);
}
var methodNames = ['clear', 'setFont', 'setRawFont', 'setFillStyle', 'setBackgroundFillStyle', 'setStrokeStyle', 'setShadowColor', 'setShadowBlur', 'setLineWidth', 'setLineCap', 'setLineDash', 'openGroup', 'closeGroup', 'getGroup'];
ctx.vexFlowCanvasContext = ctx;
methodNames.forEach(function (methodName) {
ctx[methodName] = ctx[methodName] || CanvasContext.prototype[methodName];
});
return ctx;
}
// Draw a dashed line (horizontal, vertical or diagonal
// dashPattern = [3,3] draws a 3 pixel dash followed by a three pixel space.
// setting the second number to 0 draws a solid line.
}, {
key: 'drawDashedLine',
value: function drawDashedLine(context, fromX, fromY, toX, toY, dashPattern) {
context.beginPath();
var dx = toX - fromX;
var dy = toY - fromY;
var angle = Math.atan2(dy, dx);
var x = fromX;
var y = fromY;
context.moveTo(fromX, fromY);
var idx = 0;
var draw = true;
while (!((dx < 0 ? x <= toX : x >= toX) && (dy < 0 ? y <= toY : y >= toY))) {
var dashLength = dashPattern[idx++ % dashPattern.length];
var nx = x + Math.cos(angle) * dashLength;
x = dx < 0 ? Math.max(toX, nx) : Math.min(toX, nx);
var ny = y + Math.sin(angle) * dashLength;
y = dy < 0 ? Math.max(toY, ny) : Math.min(toY, ny);
if (draw) {
context.lineTo(x, y);
} else {
context.moveTo(x, y);
}
draw = !draw;
}
context.closePath();
context.stroke();
}
}, {
key: 'Backends',
get: function get() {
return {
CANVAS: 1,
RAPHAEL: 2,
SVG: 3,
VML: 4
};
}
// End of line types
}, {
key: 'LineEndType',
get: function get() {
return {
NONE: 1, // No leg
UP: 2, // Upward leg
DOWN: 3 };
}
// Set this to true if you're using VexFlow inside a runtime
// that does not allow modifiying canvas objects. There is a small
// performance degradation due to the extra indirection.
}, {
key: 'USE_CANVAS_PROXY',
get: function get() {
return false;
}
}, {
key: 'lastContext',
get: function get() {
return lastContext;
},
set: function set(ctx) {
lastContext = ctx;
}
}]);
function Renderer(sel, backend) {
classCallCheck(this, Renderer);
// Verify selector
this.sel = sel;
if (!this.sel) {
throw new Vex.RERR('BadArgument', 'Invalid selector for renderer.');
}
// Get element from selector
this.element = document.getElementById(sel);
if (!this.element) this.element = sel;
// Verify backend and create context
this.ctx = null;
this.paper = null;
this.backend = backend;
if (this.backend === Renderer.Backends.CANVAS) {
// Create context.
if (!this.element.getContext) {
throw new Vex.RERR('BadElement', 'Can\'t get canvas context from element: ' + sel);
}
this.ctx = Renderer.bolsterCanvasContext(this.element.getContext('2d'));
} else if (this.backend === Renderer.Backends.RAPHAEL) {
this.ctx = new RaphaelContext(this.element);
} else if (this.backend === Renderer.Backends.SVG) {
this.ctx = new SVGContext(this.element);
} else {
throw new Vex.RERR('InvalidBackend', 'No support for backend: ' + this.backend);
}
}
createClass(Renderer, [{
key: 'resize',
value: function resize(width, height) {
if (this.backend === Renderer.Backends.CANVAS) {
if (!this.element.getContext) {
throw new Vex.RERR('BadElement', 'Can\'t get canvas context from element: ' + this.sel);
}
this.element.width = width;
this.element.height = height;
this.ctx = Renderer.bolsterCanvasContext(this.element.getContext('2d'));
} else {
this.ctx.resize(width, height);
}
return this;
}
}, {
key: 'getContext',
value: function getContext() {
return this.ctx;
}
}]);
return Renderer;
}();
var Voice = function () {
createClass(Voice, null, [{
key: 'Mode',
// Modes allow the addition of ticks in three different ways:
//
// STRICT: This is the default. Ticks must fill the voice.
// SOFT: Ticks can be added without restrictions.
// FULL: Ticks do not need to fill the voice, but can't exceed the maximum
// tick length.
get: function get() {
return {
STRICT: 1,
SOFT: 2,
FULL: 3
};
}
}]);
function Voice(time) {
classCallCheck(this, Voice);
this.time = Vex.Merge({
num_beats: 4,
beat_value: 4,
resolution: Flow.RESOLUTION
}, time);
// Recalculate total ticks.
this.totalTicks = new Fraction(this.time.num_beats * (this.time.resolution / this.time.beat_value), 1);
this.resolutionMultiplier = 1;
// Set defaults
this.tickables = [];
this.ticksUsed = new Fraction(0, 1);
this.smallestTickCount = this.totalTicks.clone();
this.largestTickWidth = 0;
this.stave = null;
this.boundingBox = null;
// Do we care about strictly timed notes
this.mode = Voice.Mode.STRICT;
// This must belong to a VoiceGroup
this.voiceGroup = null;
}
// Get the total ticks in the voice
createClass(Voice, [{
key: 'getTotalTicks',
value: function getTotalTicks() {
return this.totalTicks;
}
// Get the total ticks used in the voice by all the tickables
}, {
key: 'getTicksUsed',
value: function getTicksUsed() {
return this.ticksUsed;
}
// Get the largest width of all the tickables
}, {
key: 'getLargestTickWidth',
value: function getLargestTickWidth() {
return this.largestTickWidth;
}
// Get the tick count for the shortest tickable
}, {
key: 'getSmallestTickCount',
value: function getSmallestTickCount() {
return this.smallestTickCount;
}
// Get the tickables in the voice
}, {
key: 'getTickables',
value: function getTickables() {
return this.tickables;
}
// Get/set the voice mode, use a value from `Voice.Mode`
}, {
key: 'getMode',
value: function getMode() {
return this.mode;
}
}, {
key: 'setMode',
value: function setMode(mode) {
this.mode = mode;return this;
}
// Get the resolution multiplier for the voice
}, {
key: 'getResolutionMultiplier',
value: function getResolutionMultiplier() {
return this.resolutionMultiplier;
}
// Get the actual tick resolution for the voice
}, {
key: 'getActualResolution',
value: function getActualResolution() {
return this.resolutionMultiplier * this.time.resolution;
}
// Set the voice's stave
}, {
key: 'setStave',
value: function setStave(stave) {
this.stave = stave;
this.boundingBox = null; // Reset bounding box so we can reformat
return this;
}
// Get the bounding box for the voice
}, {
key: 'getBoundingBox',
value: function getBoundingBox() {
var stave = void 0;
var boundingBox = void 0;
var bb = void 0;
var i = void 0;
if (!this.boundingBox) {
if (!this.stave) throw new Vex.RERR('NoStave', "Can't get bounding box without stave.");
stave = this.stave;
boundingBox = null;
for (i = 0; i < this.tickables.length; ++i) {
this.tickables[i].setStave(stave);
bb = this.tickables[i].getBoundingBox();
if (!bb) continue;
boundingBox = boundingBox ? boundingBox.mergeWith(bb) : bb;
}
this.boundingBox = boundingBox;
}
return this.boundingBox;
}
// Every tickable must be associated with a voiceGroup. This allows formatters
// and preformatters to associate them with the right modifierContexts.
}, {
key: 'getVoiceGroup',
value: function getVoiceGroup() {
if (!this.voiceGroup) {
throw new Vex.RERR('NoVoiceGroup', 'No voice group for voice.');
}
return this.voiceGroup;
}
// Set the voice group
}, {
key: 'setVoiceGroup',
value: function setVoiceGroup(g) {
this.voiceGroup = g;return this;
}
// Set the voice mode to strict or soft
}, {
key: 'setStrict',
value: function setStrict(strict) {
this.mode = strict ? Voice.Mode.STRICT : Voice.Mode.SOFT;
return this;
}
// Determine if the voice is complete according to the voice mode
}, {
key: 'isComplete',
value: function isComplete() {
if (this.mode === Voice.Mode.STRICT || this.mode === Voice.Mode.FULL) {
return this.ticksUsed.equals(this.totalTicks);
} else {
return true;
}
}
// Add a tickable to the voice
}, {
key: 'addTickable',
value: function addTickable(tickable) {
if (!tickable.shouldIgnoreTicks()) {
var ticks = tickable.getTicks();
// Update the total ticks for this line.
this.ticksUsed.add(ticks);
if ((this.mode === Voice.Mode.STRICT || this.mode === Voice.Mode.FULL) && this.ticksUsed.greaterThan(this.totalTicks)) {
this.totalTicks.subtract(ticks);
throw new Vex.RERR('BadArgument', 'Too many ticks.');
}
// Track the smallest tickable for formatting.
if (ticks.lessThan(this.smallestTickCount)) {
this.smallestTickCount = ticks.clone();
}
this.resolutionMultiplier = this.ticksUsed.denominator;
// Expand total ticks using denominator from ticks used.
this.totalTicks.add(0, this.ticksUsed.denominator);
}
// Add the tickable to the line.
this.tickables.push(tickable);
tickable.setVoice(this);
return this;
}
// Add an array of tickables to the voice.
}, {
key: 'addTickables',
value: function addTickables(tickables) {
for (var i = 0; i < tickables.length; ++i) {
this.addTickable(tickables[i]);
}
return this;
}
// Preformats the voice by applying the voice's stave to each note.
}, {
key: 'preFormat',
value: function preFormat() {
var _this = this;
if (this.preFormatted) return this;
this.tickables.forEach(function (tickable) {
if (!tickable.getStave()) {
tickable.setStave(_this.stave);
}
});
this.preFormatted = true;
return this;
}
// Render the voice onto the canvas `context` and an optional `stave`.
// If `stave` is omitted, it is expected that the notes have staves
// already set.
}, {
key: 'draw',
value: function draw(context, stave) {
var boundingBox = null;
for (var i = 0; i < this.tickables.length; ++i) {
var tickable = this.tickables[i];
// Set the stave if provided
if (stave) tickable.setStave(stave);
if (!tickable.getStave()) {
throw new Vex.RuntimeError('MissingStave', 'The voice cannot draw tickables without staves.');
}
if (i === 0) boundingBox = tickable.getBoundingBox();
if (i > 0 && boundingBox) {
var tickable_bb = tickable.getBoundingBox();
if (tickable_bb) boundingBox.mergeWith(tickable_bb);
}
tickable.setContext(context);
tickable.draw();
}
this.boundingBox = boundingBox;
}
}]);
return Voice;
}();
// ## Description
//
// Object which computes metrics for a bounding box by continuously
// taking canvas path commands
// Warning: This file is merely a crutch to get bounding box information without
// explicit metadata. This is likely to get deprecated following SMuFL support.
//
// taken from: https://github.com/gabelerner/canvg/blob/860e418aca67b9a41e858a223d74d375793ec364/ca
// nvg.js#L449
var BoundingBoxComputation = function () {
function BoundingBoxComputation(x1, y1, x2, y2) {
classCallCheck(this, BoundingBoxComputation);
// pass in initial points if you want
this.x1 = Number.NaN;
this.y1 = Number.NaN;
this.x2 = Number.NaN;
this.y2 = Number.NaN;
this.addPoint(x1, y1);
this.addPoint(x2, y2);
}
createClass(BoundingBoxComputation, [{
key: "width",
value: function width() {
return this.x2 - this.x1;
}
}, {
key: "height",
value: function height() {
return this.y2 - this.y1;
}
}, {
key: "addPoint",
value: function addPoint(x, y) {
if (x != null) {
if (isNaN(this.x1) || isNaN(this.x2)) {
this.x1 = x;
this.x2 = x;
}
if (x < this.x1) this.x1 = x;
if (x > this.x2) this.x2 = x;
}
if (y != null) {
if (isNaN(this.y1) || isNaN(this.y2)) {
this.y1 = y;
this.y2 = y;
}
if (y < this.y1) this.y1 = y;
if (y > this.y2) this.y2 = y;
}
}
}, {
key: "addX",
value: function addX(x) {
this.addPoint(x, null);
}
}, {
key: "addY",
value: function addY(y) {
this.addPoint(null, y);
}
}, {
key: "addQuadraticCurve",
value: function addQuadraticCurve(p0x, p0y, p1x, p1y, p2x, p2y) {
var cp1x = p0x + 2 / 3 * (p1x - p0x); // CP1 = QP0 + 2/3 *(QP1-QP0)
var cp1y = p0y + 2 / 3 * (p1y - p0y); // CP1 = QP0 + 2/3 *(QP1-QP0)
var cp2x = cp1x + 1 / 3 * (p2x - p0x); // CP2 = CP1 + 1/3 *(QP2-QP0)
var cp2y = cp1y + 1 / 3 * (p2y - p0y); // CP2 = CP1 + 1/3 *(QP2-QP0)
this.addBezierCurve(p0x, p0y, cp1x, cp1y, cp2x, cp2y, p2x, p2y);
}
}, {
key: "addBezierCurve",
value: function addBezierCurve(p0x, p0y, p1x, p1y, p2x, p2y, p3x, p3y) {
// from http://blog.hackers-cafe.net/2009/06/how-to-calculate-bezier-curves-bounding.html
var p0 = [p0x, p0y];
var p1 = [p1x, p1y];
var p2 = [p2x, p2y];
var p3 = [p3x, p3y];
var i = void 0;
this.addPoint(p0[0], p0[1]);
this.addPoint(p3[0], p3[1]);
var f = function f(t, i) {
return Math.pow(1 - t, 3) * p0[i] + 3 * Math.pow(1 - t, 2) * t * p1[i] + 3 * (1 - t) * Math.pow(t, 2) * p2[i] + Math.pow(t, 3) * p3[i];
};
for (i = 0; i <= 1; i++) {
var b = 6 * p0[i] - 12 * p1[i] + 6 * p2[i];
var a = -3 * p0[i] + 9 * p1[i] - 9 * p2[i] + 3 * p3[i];
var c = 3 * p1[i] - 3 * p0[i];
if (a === 0) {
if (b === 0) continue;
var t = -c / b;
if (0 < t && t < 1) {
if (i === 0) this.addX(f(t, i));
if (i === 1) this.addY(f(t, i));
}
continue;
}
var b2ac = Math.pow(b, 2) - 4 * c * a;
if (b2ac < 0) continue;
var t1 = (-b + Math.sqrt(b2ac)) / (2 * a);
if (0 < t1 && t1 < 1) {
if (i === 0) this.addX(f(t1, i));
if (i === 1) this.addY(f(t1, i));
}
var t2 = (-b - Math.sqrt(b2ac)) / (2 * a);
if (0 < t2 && t2 < 1) {
if (i === 0) this.addX(f(t2, i));
if (i === 1) this.addY(f(t2, i));
}
}
}
}]);
return BoundingBoxComputation;
}();
/** @constructor */
var BoundingBox = function () {
createClass(BoundingBox, null, [{
key: 'copy',
value: function copy(that) {
return new BoundingBox(that.x, that.y, that.w, that.h);
}
}]);
function BoundingBox(x, y, w, h) {
classCallCheck(this, BoundingBox);
this.x = x;
this.y = y;
this.w = w;
this.h = h;
}
createClass(BoundingBox, [{
key: 'getX',
value: function getX() {
return this.x;
}
}, {
key: 'getY',
value: function getY() {
return this.y;
}
}, {
key: 'getW',
value: function getW() {
return this.w;
}
}, {
key: 'getH',
value: function getH() {
return this.h;
}
}, {
key: 'setX',
value: function setX(x) {
this.x = x;return this;
}
}, {
key: 'setY',
value: function setY(y) {
this.y = y;return this;
}
}, {
key: 'setW',
value: function setW(w) {
this.w = w;return this;
}
}, {
key: 'setH',
value: function setH(h) {
this.h = h;return this;
}
}, {
key: 'move',
value: function move(x, y) {
this.x += x;this.y += y;
}
}, {
key: 'clone',
value: function clone() {
return BoundingBox.copy(this);
}
// Merge my box with given box. Creates a bigger bounding box unless
// the given box is contained in this one.
}, {
key: 'mergeWith',
value: function mergeWith(boundingBox, ctx) {
var that = boundingBox;
var new_x = this.x < that.x ? this.x : that.x;
var new_y = this.y < that.y ? this.y : that.y;
var new_w = this.x + this.w < that.x + that.w ? that.x + that.w - this.x : this.x + this.w - Vex.Min(this.x, that.x);
var new_h = this.y + this.h < that.y + that.h ? that.y + that.h - this.y : this.y + this.h - Vex.Min(this.y, that.y);
this.x = new_x;
this.y = new_y;
this.w = new_w;
this.h = new_h;
if (ctx) this.draw(ctx);
return this;
}
}, {
key: 'draw',
value: function draw(ctx, x, y) {
if (!x) x = 0;
if (!y) y = 0;
ctx.rect(this.x + x, this.y + y, this.w, this.h);
ctx.stroke();
}
}]);
return BoundingBox;
}();
var Font={'glyphs':{'v0':{'x_min':0,'x_max':514.5,'ha':525,'o':'m 236 648 b 246 648 238 648 242 648 b 288 646 261 648 283 648 b 472 513 364 634 428 587 b 514 347 502 464 514 413 b 462 163 514 272 499 217 b 257 44 409 83 333 44 b 50 163 181 44 103 83 b 0 347 14 217 0 272 b 40 513 0 413 12 464 b 236 648 87 591 155 638 m 277 614 b 253 616 273 616 261 616 b 242 616 247 616 243 616 b 170 499 193 609 181 589 b 159 348 163 446 159 398 b 166 222 159 308 161 266 b 201 91 174 138 183 106 b 257 76 215 81 235 76 b 311 91 277 76 299 81 b 347 222 330 106 338 138 b 353 348 352 266 353 308 b 344 499 353 398 351 446 b 277 614 333 587 322 606 m 257 -1 l 258 -1 l 255 -1 l 257 -1 m 257 673 l 258 673 l 255 673 l 257 673 '},'v1':{'x_min':-1.359375,'x_max':344.359375,'ha':351,'o':'m 126 637 l 129 638 l 198 638 l 266 638 l 269 635 b 274 631 272 634 273 632 l 277 627 l 277 395 b 279 156 277 230 277 161 b 329 88 281 123 295 106 b 344 69 341 81 344 79 b 337 55 344 62 343 59 l 333 54 l 197 54 l 61 54 l 58 55 b 50 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505 368 552 338 520 b 212 494 277 498 246 494 b 65 517 163 494 106 502 b 61 517 62 517 61 517 b 61 517 61 517 61 517 b 51 408 61 517 51 412 b 51 408 51 408 51 408 b 51 408 51 408 51 408 b 61 412 53 408 55 409 b 125 434 80 421 103 430 b 185 441 145 440 166 441 b 409 244 310 441 409 353 b 401 191 409 227 406 209 b 197 43 375 105 287 43 b 159 47 183 43 171 44 b 23 123 112 56 61 86 b 0 180 6 140 0 159 b 76 260 0 220 31 260 b 92 259 81 260 87 259 b 152 183 132 251 152 216 b 100 112 152 152 134 122 b 95 111 98 112 95 111 b 95 111 95 111 95 111 b 129 98 95 109 119 101 b 148 97 136 97 141 97 b 264 235 206 97 261 158 b 265 248 265 240 265 244 b 210 398 265 312 243 373 b 179 408 201 406 194 408 b 174 408 178 408 176 408 b 53 369 130 408 88 394 b 34 359 39 359 38 359 b 17 374 24 359 17 365 b 39 628 17 384 38 625 b 47 637 40 631 43 635 m 204 -1 l 205 -1 l 202 -1 l 204 -1 m 204 673 l 205 673 l 202 673 l 204 673 '},'v6':{'x_min':0,'x_max':475.03125,'ha':485,'o':'m 255 648 b 274 648 259 648 266 648 b 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83 285 77 294 b 91 326 77 312 83 320 b 148 328 95 328 96 328 l 198 330 l 202 341 b 460 574 249 473 351 566 '},'vbb':{'x_min':0,'x_max':288.5625,'ha':294,'o':'m 202 341 b 235 341 213 341 225 341 b 261 341 249 341 259 341 b 288 309 276 340 288 326 l 288 309 b 163 -320 288 305 166 -310 b 142 -341 160 -330 153 -337 b 83 -342 140 -342 111 -342 b 21 -341 54 -342 24 -342 b 0 -310 8 -337 0 -324 b 0 -310 0 -310 0 -310 b 123 316 0 -306 118 297 b 144 340 126 327 133 335 b 202 341 147 341 151 341 '},'vbc':{'x_min':-155.171875,'x_max':153.8125,'ha':158,'o':'m -8 24 b -1 26 -6 24 -4 26 b 21 12 8 26 17 20 b 27 -8 24 9 24 9 b 144 -303 50 -115 93 -227 b 153 -322 151 -315 152 -317 b 153 -330 153 -324 153 -327 b 129 -355 153 -344 142 -355 b 111 -351 123 -355 117 -353 b 0 -319 76 -330 38 -319 b -100 -344 -35 -319 -69 -327 b -112 -351 -104 -345 -110 -348 b -129 -355 -119 -355 -123 -355 b -155 -328 -144 -355 -155 -344 b -145 -303 -155 -322 -155 -319 b -28 -6 -95 -226 -53 -119 b -8 24 -24 13 -20 19 '},'vbd':{'x_min':-390.640625,'x_max':389.28125,'ha':397,'o':'m -378 -2 b -368 -1 -375 -1 -374 -1 b -349 -13 -360 -1 -353 -5 l -348 -16 l -348 -212 l -348 -408 l 0 -408 l 347 -408 l 347 -212 l 347 -16 l 348 -13 b 367 0 352 -5 360 0 b 387 -13 375 0 383 -5 l 389 -16 l 389 -288 l 389 -560 l 387 -564 b 377 -574 385 -569 381 -573 l 372 -577 l 0 -577 l -374 -577 l -378 -574 b -389 -564 -382 -573 -386 -569 l -390 -560 l -390 -288 l -390 -16 l -389 -13 b -378 -2 -386 -8 -382 -4 m -274 -2 b -266 -1 -272 -1 -270 -1 b -246 -13 -257 -1 -250 -5 l -245 -16 l -245 -109 l -245 -202 l 0 -202 l 243 -202 l 243 -109 l 245 -16 l 245 -13 b 265 0 249 -5 257 0 b 284 -13 272 0 280 -5 l 285 -16 l 285 -170 l 285 -324 l 284 -327 b 273 -338 281 -331 279 -335 l 269 -340 l 0 -340 l -270 -340 l -274 -338 b -285 -327 -280 -335 -283 -331 l -287 -324 l -287 -170 l -287 -16 l -285 -13 b -274 -2 -283 -8 -280 -4 m -13 -9 b -1 -8 -9 -8 -5 -8 b 50 -36 19 -8 39 -19 b 61 -72 57 -47 61 -59 b 50 -106 61 -84 57 -97 b -1 -134 39 -124 19 -134 b -46 -115 -17 -134 -34 -129 b -62 -72 -58 -102 -62 -87 b -13 -9 -62 -44 -44 -16 '},'vbe':{'x_min':-122.5,'x_max':121.140625,'ha':124,'o':'m -16 145 b -1 147 -10 147 -5 147 b 119 20 58 147 111 93 b 121 0 119 13 121 6 b 32 -142 121 -66 84 -124 l 24 -144 l 24 -180 b 24 -187 24 -183 24 -184 b 19 -227 24 -222 24 -220 b 0 -237 14 -234 6 -237 b -20 -227 -8 -237 -16 -234 b -25 -187 -25 -220 -25 -222 b -25 -180 -25 -184 -25 -183 l -25 -144 l -34 -142 b -122 0 -85 -124 -122 -66 b -121 20 -122 6 -121 13 b -16 145 -114 84 -70 137 m 12 111 b 0 113 8 113 4 113 b -68 22 -29 113 -61 73 b -69 0 -69 15 -69 6 b -13 -113 -69 -49 -46 -98 b -1 -115 -9 -115 -5 -115 b 63 -40 24 -115 53 -83 b 68 -1 66 -27 68 -15 b 12 111 68 48 46 97 '},'vbf':{'x_min':-53.078125,'x_max':513.140625,'ha':485,'o':'m 185 383 b 196 384 187 383 191 384 b 277 334 230 384 259 365 b 288 301 281 324 288 306 b 288 297 288 298 288 297 b 294 302 289 297 291 299 b 394 370 323 338 367 367 b 404 371 398 370 401 371 b 510 272 453 371 498 328 b 513 237 513 262 513 251 b 507 172 513 217 511 192 b 326 -34 487 59 412 -26 b 314 -36 322 -36 318 -36 b 274 -24 298 -36 283 -31 l 265 -16 b 224 44 246 -1 232 20 b 223 49 224 47 223 49 b 223 49 223 49 223 49 b 149 -197 221 48 149 -194 b 149 -198 149 -197 149 -198 b 170 -210 149 -202 155 -205 b 187 -215 174 -210 175 -212 b 204 -231 201 -219 204 -222 b 197 -245 204 -240 202 -242 l 194 -248 l 76 -248 l -42 -248 l -46 -245 b -53 -231 -51 -242 -53 -240 b -35 -215 -53 -222 -49 -217 b -13 -210 -21 -212 -20 -212 b -6 -208 -10 -209 -8 -208 b 0 -206 -6 -208 -2 -206 b 25 -188 13 -201 21 -195 b 163 280 28 -183 163 276 b 166 291 163 283 164 287 b 167 302 167 295 167 299 b 155 324 167 315 161 324 b 155 324 155 324 155 324 b 65 230 125 322 85 280 b 53 215 61 217 58 215 b 51 215 53 215 51 215 b 42 224 46 215 42 217 b 57 263 42 231 47 244 b 140 360 77 305 104 337 b 152 370 144 365 149 369 b 185 383 157 376 172 381 m 374 306 b 366 308 371 308 368 308 b 300 273 348 308 321 294 b 284 254 288 262 287 259 b 280 242 283 249 281 245 b 257 169 279 240 270 213 l 236 98 l 236 93 b 251 48 238 77 243 61 b 279 27 258 37 272 27 b 281 27 279 27 280 27 b 291 31 281 27 287 30 b 396 170 334 52 378 109 b 406 247 402 197 406 224 b 401 277 406 259 405 270 b 374 306 397 290 383 303 '},'vc0':{'x_min':-571.671875,'x_max':570.3125,'ha':582,'o':'m 156 273 b 163 274 159 273 161 274 b 183 262 171 274 179 269 b 185 158 185 259 185 259 l 185 56 l 231 112 b 284 174 277 172 279 172 b 289 174 285 174 288 174 b 299 173 294 174 298 173 b 462 11 303 172 338 134 l 475 -1 l 503 34 b 541 76 534 72 536 74 b 548 77 544 77 545 77 b 570 56 560 77 570 68 b 567 48 570 54 568 51 b 392 -172 564 41 397 -166 b 378 -176 387 -174 382 -176 b 368 -174 374 -176 371 -176 b 280 -87 367 -173 345 -152 b 194 0 234 -38 194 0 b 189 -6 194 0 191 -2 l 185 -12 l 185 -147 b 185 -210 185 -173 185 -194 b 179 -292 185 -297 185 -287 b 164 -299 175 -297 170 -299 b 145 -287 156 -299 148 -295 b 144 -174 144 -284 144 -284 l 142 -63 l 100 -117 b 46 -176 57 -170 54 -176 b 42 -176 44 -176 43 -176 b -54 -87 32 -174 38 -180 b -140 0 -102 -38 -140 0 b -209 -86 -141 0 -171 -38 b -285 -174 -280 -174 -279 -173 b -291 -176 -287 -176 -289 -176 b -300 -174 -295 -176 -299 -174 b -464 -12 -304 -173 -340 -137 l -476 0 l -504 -34 b -543 -77 -534 -73 -537 -76 b -549 -79 -545 -79 -547 -79 b -571 -58 -562 -79 -571 -69 b -568 -49 -571 -55 -570 -52 b -393 170 -566 -43 -398 165 b -379 174 -389 173 -383 174 b -370 173 -375 174 -372 174 b -281 86 -367 172 -347 151 b -196 0 -235 37 -196 0 b -126 84 -196 0 -164 37 b -50 174 -55 173 -57 172 b -44 174 -49 174 -47 174 b -35 173 -42 174 -38 173 b 127 11 -32 172 16 123 l 138 -1 l 141 1 l 144 4 l 144 130 b 145 260 144 256 144 258 b 156 273 147 266 151 270 '},'vc1':{'x_min':-525.390625,'x_max':524.03125,'ha':535,'o':'m -42 1067 b 1 1068 -27 1068 -13 1068 b 524 534 285 1068 524 831 b 0 0 524 231 283 0 b -118 12 -38 0 -77 4 b -487 335 -284 51 -424 174 b -525 534 -513 402 -525 469 b -42 1067 -525 802 -325 1042 m 38 1038 b 0 1039 25 1039 12 1039 b -460 725 -198 1039 -386 914 l -461 721 l 0 721 l 460 721 l 458 725 b 38 1038 390 899 224 1022 m 472 685 l 470 692 l 0 692 l -470 692 l -473 685 b -496 535 -488 638 -496 587 b -472 377 -496 483 -488 428 l -470 374 l 0 374 l 470 374 l 470 377 b 495 535 487 428 495 483 b 472 685 495 587 488 638 m 458 344 l 460 345 l 0 345 l -461 345 l -460 344 b -402 238 -454 323 -424 269 b 0 27 -303 98 -152 27 b 401 238 151 27 302 98 b 458 344 423 269 453 323 '},'vc2':{'x_min':0,'x_max':337.5625,'ha':344,'o':'m 230 535 b 239 537 232 537 234 537 b 258 524 247 537 254 533 l 259 521 l 259 390 l 259 258 l 285 265 b 318 270 302 269 311 270 b 336 259 328 270 332 267 b 337 208 336 256 337 233 b 336 158 337 184 336 159 b 302 140 332 148 329 147 b 259 130 266 131 259 130 b 259 65 259 130 259 104 b 259 20 259 51 259 36 l 259 -88 l 285 -81 b 318 -76 302 -77 311 -76 b 332 -81 325 -76 328 -77 b 337 -123 336 -87 337 -86 l 337 -138 l 337 -154 b 332 -195 337 -191 336 -190 b 281 -210 328 -199 328 -199 b 262 -216 272 -213 264 -216 l 259 -216 l 259 -349 l 259 -483 l 258 -487 b 239 -499 254 -495 246 -499 b 220 -487 231 -499 223 -495 l 219 -483 l 217 -355 l 217 -227 l 216 -227 l 194 -233 l 152 -244 b 129 -249 140 -247 130 -249 b 127 -410 127 -249 127 -258 b 127 -576 127 -548 127 -573 b 126 -578 126 -577 126 -578 b 127 -580 126 -578 126 -580 b 133 -578 129 -580 130 -578 b 186 -557 152 -576 170 -569 b 197 -555 190 -556 194 -555 b 215 -573 206 -555 215 -562 l 215 -574 l 215 -580 l 209 -588 b 126 -802 172 -648 141 -727 b 107 -823 123 -817 118 -823 b 87 -798 95 -823 91 -817 b 5 -588 69 -718 40 -648 l 0 -580 l 0 -574 b 0 -573 0 -574 0 -574 b 16 -555 0 -562 6 -555 b 27 -557 20 -555 24 -556 b 81 -578 44 -569 62 -576 b 87 -580 84 -578 85 -580 b 88 -578 88 -580 88 -580 b 87 -576 88 -578 88 -577 b 87 -416 87 -573 87 -549 b 85 -260 87 -270 87 -260 b 85 -260 85 -260 85 -260 b 32 -273 74 -263 35 -273 b 13 -260 24 -273 16 -267 b 12 -209 12 -256 12 -256 l 12 -162 l 13 -158 b 74 -134 17 -148 17 -148 l 87 -131 l 87 -22 b 85 86 87 79 87 86 b 85 86 85 86 85 86 b 32 74 74 83 35 74 b 13 86 24 74 16 79 b 12 137 12 90 12 90 l 12 184 l 13 188 b 73 212 17 198 17 198 l 87 215 l 87 348 l 87 481 l 88 485 b 107 498 92 492 99 498 b 117 495 110 498 114 496 b 126 485 121 494 125 489 l 127 481 l 127 353 l 127 226 l 133 226 b 172 235 136 227 153 231 l 212 247 l 217 248 l 217 384 l 219 521 l 220 524 b 230 535 221 528 225 533 m 217 9 b 217 119 217 70 217 119 l 217 119 b 194 113 217 119 206 116 l 152 102 b 129 97 140 99 130 97 b 127 -12 127 97 127 91 l 127 -122 l 133 -120 b 172 -111 136 -119 153 -115 l 212 -101 l 217 -98 l 217 9 '},'vc3':{'x_min':-10.890625,'x_max':299.4375,'ha':294,'o':'m 136 460 b 142 462 137 462 140 462 b 166 449 152 462 161 456 b 171 428 168 446 168 445 b 288 131 194 322 238 209 b 298 115 295 120 296 117 b 299 106 298 112 299 109 b 273 81 299 91 287 81 b 255 86 268 81 261 83 b 155 116 225 104 183 116 l 152 116 l 149 108 b 141 83 148 102 144 91 b 134 48 137 69 134 58 b 149 9 134 34 140 24 b 153 -1 152 5 153 1 b 149 -9 153 -5 152 -6 b 144 -11 148 -11 147 -11 b 122 2 138 -11 133 -6 b 95 61 104 20 95 38 b 107 108 95 74 99 90 b 108 113 107 111 108 112 b 107 113 108 113 108 113 b 102 113 106 113 104 113 b 31 86 76 108 53 98 b 14 80 24 81 20 80 b -10 106 0 80 -10 91 b 0 131 -10 115 -9 116 b 115 430 49 209 91 317 b 136 460 119 451 123 456 '}},'cssFontWeight':'normal','ascender':1903,'underlinePosition':-125,'cssFontStyle':'normal','boundingBox':{'yMin':-2065.375,'xMin':-695.53125,'yMax':1901.578125,'xMax':1159.671875},'resolution':1000,'original_font_information':{'postscript_name':'Gonville-18','version_string':'Version 0.1.8904 ','vendor_url':'','full_font_name':'Gonville-18','font_family_name':'Gonville-18','copyright':'No copyright is claimed on this font file.','description':'','trademark':'','designer':'','designer_url':'','unique_font_identifier':'FontForge 2.0 : Gonville-18 : 17-3-2010','license_url':'','license_description':'','manufacturer_name':'','font_sub_family_name':'18'},'descender':-2066,'familyName':'Gonville-18','lineHeight':4093,'underlineThickness':50};
function processOutline(outline, originX, originY, scaleX, scaleY, outlineFns) {
var command = void 0;
var x = void 0;
var y = void 0;
var i = 0;
function nextX() {
return originX + outline[i++] * scaleX;
}
function nextY() {
return originY + outline[i++] * scaleY;
}
while (i < outline.length) {
command = outline[i++];
switch (command) {
case 'm':
case 'l':
outlineFns[command](nextX(), nextY());
break;
case 'q':
x = nextX();
y = nextY();
outlineFns.q(nextX(), nextY(), x, y);
break;
case 'b':
x = nextX();
y = nextY();
outlineFns.b(nextX(), nextY(), nextX(), nextY(), x, y);
break;
default:
break;
}
}
}
var Glyph = function () {
createClass(Glyph, null, [{
key: 'loadMetrics',
/* Static methods used to implement loading / unloading of glyphs */
value: function loadMetrics(font, code, cache) {
var glyph = font.glyphs[code];
if (!glyph) {
throw new Vex.RERR('BadGlyph', 'Glyph ' + code + ' does not exist in font.');
}
var x_min = glyph.x_min;
var x_max = glyph.x_max;
var ha = glyph.ha;
var outline = void 0;
if (glyph.o) {
if (cache) {
if (glyph.cached_outline) {
outline = glyph.cached_outline;
} else {
outline = glyph.o.split(' ');
glyph.cached_outline = outline;
}
} else {
if (glyph.cached_outline) delete glyph.cached_outline;
outline = glyph.o.split(' ');
}
return {
x_min: x_min,
x_max: x_max,
ha: ha,
outline: outline
};
} else {
throw new Vex.RERR('BadGlyph', 'Glyph ' + code + ' has no outline defined.');
}
}
/**
* A quick and dirty static glyph renderer. Renders glyphs from the default
* font defined in Vex.Flow.Font.
*
* @param {!Object} ctx The canvas context.
* @param {number} x_pos X coordinate.
* @param {number} y_pos Y coordinate.
* @param {number} point The point size to use.
* @param {string} val The glyph code in Vex.Flow.Font.
* @param {boolean} nocache If set, disables caching of font outline.
*/
}, {
key: 'renderGlyph',
value: function renderGlyph(ctx, x_pos, y_pos, point, val, nocache) {
var scale = point * 72.0 / (Font.resolution * 100.0);
var metrics = Glyph.loadMetrics(Font, val, !nocache);
Glyph.renderOutline(ctx, metrics.outline, scale, x_pos, y_pos);
}
}, {
key: 'renderOutline',
value: function renderOutline(ctx, outline, scale, x_pos, y_pos) {
ctx.beginPath();
ctx.moveTo(x_pos, y_pos);
processOutline(outline, x_pos, y_pos, scale, -scale, {
m: ctx.moveTo.bind(ctx),
l: ctx.lineTo.bind(ctx),
q: ctx.quadraticCurveTo.bind(ctx),
b: ctx.bezierCurveTo.bind(ctx)
});
ctx.fill();
}
}, {
key: 'getOutlineBoundingBox',
value: function getOutlineBoundingBox(outline, scale, x_pos, y_pos) {
var bboxComp = new BoundingBoxComputation(x_pos, y_pos);
processOutline(outline, x_pos, y_pos, scale, -scale, {
m: bboxComp.addPoint.bind(bboxComp),
l: bboxComp.addPoint.bind(bboxComp),
q: bboxComp.addQuadraticCurve.bind(bboxComp),
b: bboxComp.addBezierCurve.bind(bboxComp)
});
return new BoundingBox(bboxComp.x1, bboxComp.y1, bboxComp.width(), bboxComp.height());
}
/**
* @constructor
*/
}]);
function Glyph(code, point, options) {
classCallCheck(this, Glyph);
this.code = code;
this.point = point;
this.context = null;
this.options = {
cache: true,
font: Font
};
this.metrics = null;
this.x_shift = 0;
this.y_shift = 0;
if (options) {
this.setOptions(options);
} else {
this.reset();
}
}
createClass(Glyph, [{
key: 'setOptions',
value: function setOptions(options) {
Vex.Merge(this.options, options);
this.reset();
}
}, {
key: 'setPoint',
value: function setPoint(point) {
this.point = point;return this;
}
}, {
key: 'setStave',
value: function setStave(stave) {
this.stave = stave;return this;
}
}, {
key: 'setXShift',
value: function setXShift(x_shift) {
this.x_shift = x_shift;return this;
}
}, {
key: 'setYShift',
value: function setYShift(y_shift) {
this.y_shift = y_shift;return this;
}
}, {
key: 'setContext',
value: function setContext(context) {
this.context = context;return this;
}
}, {
key: 'getContext',
value: function getContext() {
return this.context;
}
}, {
key: 'reset',
value: function reset() {
this.scale = this.point * 72 / (this.options.font.resolution * 100);
this.metrics = Glyph.loadMetrics(this.options.font, this.code, this.options.cache);
this.bbox = Glyph.getOutlineBoundingBox(this.metrics.outline, this.scale, 0, 0);
}
}, {
key: 'getMetrics',
value: function getMetrics() {
if (!this.metrics) {
throw new Vex.RuntimeError('BadGlyph', 'Glyph ' + this.code + ' is not initialized.');
}
return {
x_min: this.metrics.x_min * this.scale,
x_max: this.metrics.x_max * this.scale,
width: this.bbox.getW(),
height: this.bbox.getH()
};
}
}, {
key: 'render',
value: function render(ctx, x_pos, y_pos) {
if (!this.metrics) {
throw new Vex.RuntimeError('BadGlyph', 'Glyph ' + this.code + ' is not initialized.');
}
var outline = this.metrics.outline;
var scale = this.scale;
Glyph.renderOutline(ctx, outline, scale, x_pos, y_pos);
}
}, {
key: 'renderToStave',
value: function renderToStave(x) {
if (!this.metrics) {
throw new Vex.RuntimeError('BadGlyph', 'Glyph ' + this.code + ' is not initialized.');
}
if (!this.stave) {
throw new Vex.RuntimeError('GlyphError', 'No valid stave');
}
if (!this.context) {
throw new Vex.RERR('GlyphError', 'No valid context');
}
var outline = this.metrics.outline;
var scale = this.scale;
Glyph.renderOutline(this.context, outline, scale, x + this.x_shift, this.stave.getYForGlyphs() + this.y_shift);
}
}]);
return Glyph;
}();
// To enable logging for this class. Set `Vex.Flow.Stem.DEBUG` to `true`.
function L$1() {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
if (Stem.DEBUG) Vex.L('Vex.Flow.Stem', args);
}
var Stem = function () {
createClass(Stem, null, [{
key: 'CATEGORY',
get: function get() {
return 'stem';
}
// Stem directions
}, {
key: 'UP',
get: function get() {
return 1;
}
}, {
key: 'DOWN',
get: function get() {
return -1;
}
// Theme
}, {
key: 'WIDTH',
get: function get() {
return Flow.STEM_WIDTH;
}
}, {
key: 'HEIGHT',
get: function get() {
return Flow.STEM_HEIGHT;
}
}]);
function Stem() {
var options = arguments.length <= 0 || arguments[0] === undefined ? null : arguments[0];
classCallCheck(this, Stem);
if (options === null) {
return;
}
// Default notehead x bounds
this.x_begin = options.x_begin || 0;
this.x_end = options.x_end || 0;
// Y bounds for top/bottom most notehead
this.y_top = options.y_top || 0;
this.y_bottom = options.y_bottom || 0;
// Stem base extension
this.y_extend = options.y_extend || 0;
// Stem top extension
this.stem_extension = options.stem_extension || 0;
// Direction of the stem
this.stem_direction = options.stem_direction || 0;
// Flag to override all draw calls
this.hide = false;
}
// Set the x bounds for the default notehead
createClass(Stem, [{
key: 'setNoteHeadXBounds',
value: function setNoteHeadXBounds(x_begin, x_end) {
this.x_begin = x_begin;
this.x_end = x_end;
return this;
}
// Set the direction of the stem in relation to the noteheads
}, {
key: 'setDirection',
value: function setDirection(direction) {
this.stem_direction = direction;
}
// Set the extension for the stem, generally for flags or beams
}, {
key: 'setExtension',
value: function setExtension(ext) {
this.stem_extension = ext;
}
// The the y bounds for the top and bottom noteheads
}, {
key: 'setYBounds',
value: function setYBounds(y_top, y_bottom) {
this.y_top = y_top;
this.y_bottom = y_bottom;
}
// The category of the object
}, {
key: 'getCategory',
value: function getCategory() {
return Stem.CATEGORY;
}
// Set the canvas context to render on
}, {
key: 'setContext',
value: function setContext(context) {
this.context = context;return this;
}
// Gets the entire height for the stem
}, {
key: 'getHeight',
value: function getHeight() {
return (this.y_bottom - this.y_top) * this.stem_direction + (Stem.HEIGHT + this.stem_extension) * this.stem_direction;
}
}, {
key: 'getBoundingBox',
value: function getBoundingBox() {
throw new Vex.RERR('NotImplemented', 'getBoundingBox() not implemented.');
}
// Get the y coordinates for the very base of the stem to the top of
// the extension
}, {
key: 'getExtents',
value: function getExtents() {
var ys = [this.y_top, this.y_bottom];
var top_pixel = this.y_top;
var base_pixel = this.y_bottom;
var stem_height = Stem.HEIGHT + this.stem_extension;
for (var i = 0; i < ys.length; ++i) {
var stem_top = ys[i] + stem_height * -this.stem_direction;
if (this.stem_direction === Stem.DOWN) {
top_pixel = Math.max(top_pixel, stem_top);
base_pixel = Math.min(base_pixel, ys[i]);
} else {
top_pixel = Math.min(top_pixel, stem_top);
base_pixel = Math.max(base_pixel, ys[i]);
}
}
return { topY: top_pixel, baseY: base_pixel };
}
// set the draw style of a stem:
}, {
key: 'setStyle',
value: function setStyle(style) {
this.style = style;return this;
}
}, {
key: 'getStyle',
value: function getStyle() {
return this.style;
}
// Apply current style to Canvas `context`
}, {
key: 'applyStyle',
value: function applyStyle(context) {
var style = this.getStyle();
if (style) {
if (style.shadowColor) context.setShadowColor(style.shadowColor);
if (style.shadowBlur) context.setShadowBlur(style.shadowBlur);
if (style.strokeStyle) context.setStrokeStyle(style.strokeStyle);
}
return this;
}
// Render the stem onto the canvas
}, {
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoCanvasContext', "Can't draw without a canvas context.");
}
if (this.hide) return;
var ctx = this.context;
var stem_x = void 0;
var stem_y = void 0;
var stem_direction = this.stem_direction;
if (stem_direction === Stem.DOWN) {
// Down stems are rendered to the left of the head.
stem_x = this.x_begin + Stem.WIDTH / 2;
stem_y = this.y_top + 2;
} else {
// Up stems are rendered to the right of the head.
stem_x = this.x_end + Stem.WIDTH / 2;
stem_y = this.y_bottom - 2;
}
stem_y += this.y_extend * stem_direction;
L$1('Rendering stem - ', 'Top Y: ', this.y_top, 'Bottom Y: ', this.y_bottom);
// Draw the stem
ctx.save();
this.applyStyle(ctx);
ctx.beginPath();
ctx.setLineWidth(Stem.WIDTH);
ctx.moveTo(stem_x, stem_y);
ctx.lineTo(stem_x, stem_y - this.getHeight());
ctx.stroke();
ctx.restore();
}
}]);
return Stem;
}();
var Tuplet = function () {
createClass(Tuplet, null, [{
key: 'LOCATION_TOP',
get: function get() {
return 1;
}
}, {
key: 'LOCATION_BOTTOM',
get: function get() {
return -1;
}
}, {
key: 'NESTING_OFFSET',
get: function get() {
return 15;
}
}]);
function Tuplet(notes, options) {
classCallCheck(this, Tuplet);
if (!notes || !notes.length) {
throw new Vex.RuntimeError('BadArguments', 'No notes provided for tuplet.');
}
if (notes.length === 1) {
throw new Vex.RuntimeError('BadArguments', 'Too few notes for tuplet.');
}
this.options = Vex.Merge({}, options);
this.notes = notes;
this.num_notes = 'num_notes' in this.options ? this.options.num_notes : notes.length;
// We accept beats_occupied, but warn that it's deprecated:
// the preferred property name is now notes_occupied.
if (this.options.beats_occupied) {
this.beatsOccupiedDeprecationWarning();
}
this.notes_occupied = this.options.notes_occupied || this.options.beats_occupied || 2;
if ('bracketed' in this.options) {
this.bracketed = this.options.bracketed;
} else {
this.bracketed = notes.some(function (note) {
return note.beam === null;
});
}
this.ratioed = 'ratioed' in this.options ? this.options.ratioed : Math.abs(this.notes_occupied - this.num_notes) > 1;
this.point = 28;
this.y_pos = 16;
this.x_pos = 100;
this.width = 200;
this.location = this.options.location || Tuplet.LOCATION_TOP;
Formatter.AlignRestsToNotes(notes, true, true);
this.resolveGlyphs();
this.attach();
}
createClass(Tuplet, [{
key: 'attach',
value: function attach() {
for (var i = 0; i < this.notes.length; i++) {
var note = this.notes[i];
note.setTuplet(this);
}
}
}, {
key: 'detach',
value: function detach() {
for (var i = 0; i < this.notes.length; i++) {
var note = this.notes[i];
note.resetTuplet(this);
}
}
}, {
key: 'setContext',
value: function setContext(context) {
this.context = context;
return this;
}
/**
* Set whether or not the bracket is drawn.
*/
}, {
key: 'setBracketed',
value: function setBracketed(bracketed) {
this.bracketed = !!bracketed;
return this;
}
/**
* Set whether or not the ratio is shown.
*/
}, {
key: 'setRatioed',
value: function setRatioed(ratioed) {
this.ratioed = !!ratioed;
return this;
}
/**
* Set the tuplet to be displayed either on the top or bottom of the stave
*/
}, {
key: 'setTupletLocation',
value: function setTupletLocation(location) {
if (!location) {
location = Tuplet.LOCATION_TOP;
} else if (location !== Tuplet.LOCATION_TOP && location !== Tuplet.LOCATION_BOTTOM) {
throw new Vex.RERR('BadArgument', 'Invalid tuplet location: ' + location);
}
this.location = location;
return this;
}
}, {
key: 'getNotes',
value: function getNotes() {
return this.notes;
}
}, {
key: 'getNoteCount',
value: function getNoteCount() {
return this.num_notes;
}
}, {
key: 'beatsOccupiedDeprecationWarning',
value: function beatsOccupiedDeprecationWarning() {
var msg = ['beats_occupied has been deprecated as an ', 'option for tuplets. Please use notes_occupied ', 'instead. Calls to getBeatsOccupied and ', 'setBeatsOccupied should now be routed to ', 'getNotesOccupied and setNotesOccupied instead'].join('');
if (console && console.warn) {
// eslint-disable-line no-console
console.warn(msg); // eslint-disable-line no-console
} else if (console) {
console.log(msg); // eslint-disable-line no-console
}
}
}, {
key: 'getBeatsOccupied',
value: function getBeatsOccupied() {
this.beatsOccupiedDeprecationWarning();
return this.getNotesOccupied();
}
}, {
key: 'setBeatsOccupied',
value: function setBeatsOccupied(beats) {
this.beatsOccupiedDeprecationWarning();
return this.setNotesOccupied(beats);
}
}, {
key: 'getNotesOccupied',
value: function getNotesOccupied() {
return this.notes_occupied;
}
}, {
key: 'setNotesOccupied',
value: function setNotesOccupied(notes) {
this.detach();
this.notes_occupied = notes;
this.resolveGlyphs();
this.attach();
}
}, {
key: 'resolveGlyphs',
value: function resolveGlyphs() {
this.num_glyphs = [];
var n = this.num_notes;
while (n >= 1) {
this.num_glyphs.push(new Glyph('v' + n % 10, this.point));
n = parseInt(n / 10, 10);
}
this.denom_glyphs = [];
n = this.notes_occupied;
while (n >= 1) {
this.denom_glyphs.push(new Glyph('v' + n % 10, this.point));
n = parseInt(n / 10, 10);
}
}
// determine how many tuplets are nested within this tuplet
// on the same side (above/below), to calculate a y
// offset for this tuplet:
}, {
key: 'getNestedTupletCount',
value: function getNestedTupletCount() {
var location = this.location;
var first_note = this.notes[0];
var maxTupletCount = countTuplets(first_note, location);
var minTupletCount = countTuplets(first_note, location);
// Count the tuplets that are on the same side (above/below)
// as this tuplet:
function countTuplets(note, location) {
return note.tupletStack.filter(function (tuplet) {
return tuplet.location === location;
}).length;
}
this.notes.forEach(function (note) {
var tupletCount = countTuplets(note, location);
maxTupletCount = tupletCount > maxTupletCount ? tupletCount : maxTupletCount;
minTupletCount = tupletCount < minTupletCount ? tupletCount : minTupletCount;
});
return maxTupletCount - minTupletCount;
}
// determine the y position of the tuplet:
}, {
key: 'getYPosition',
value: function getYPosition() {
// offset the tuplet for any nested tuplets between
// it and the notes:
var nested_tuplet_y_offset = this.getNestedTupletCount() * Tuplet.NESTING_OFFSET * -this.location;
// offset the tuplet for any manual y_offset:
var y_offset = this.options.y_offset || 0;
// now iterate through the notes and find our highest
// or lowest locations, to form a base y_pos
var first_note = this.notes[0];
var y_pos = void 0;
if (this.location === Tuplet.LOCATION_TOP) {
y_pos = first_note.getStave().getYForLine(0) - 15;
// y_pos = first_note.getStemExtents().topY - 10;
for (var i = 0; i < this.notes.length; ++i) {
var top_y = this.notes[i].getStemDirection() === Stem.UP ? this.notes[i].getStemExtents().topY - 10 : this.notes[i].getStemExtents().baseY - 20;
if (top_y < y_pos) {
y_pos = top_y;
}
}
} else {
y_pos = first_note.getStave().getYForLine(4) + 20;
for (var _i = 0; _i < this.notes.length; ++_i) {
var bottom_y = this.notes[_i].getStemDirection() === Stem.UP ? this.notes[_i].getStemExtents().baseY + 20 : this.notes[_i].getStemExtents().topY + 10;
if (bottom_y > y_pos) {
y_pos = bottom_y;
}
}
}
return y_pos + nested_tuplet_y_offset + y_offset;
}
}, {
key: 'draw',
value: function draw() {
var _this = this;
if (!this.context) {
throw new Vex.RERR('NoCanvasContext', "Can't draw without a canvas context.");
}
// determine x value of left bound of tuplet
var first_note = this.notes[0];
var last_note = this.notes[this.notes.length - 1];
if (!this.bracketed) {
this.x_pos = first_note.getStemX();
this.width = last_note.getStemX() - this.x_pos;
} else {
this.x_pos = first_note.getTieLeftX() - 5;
this.width = last_note.getTieRightX() - this.x_pos + 5;
}
// determine y value for tuplet
this.y_pos = this.getYPosition();
var addGlyphWidth = function addGlyphWidth(width, glyph) {
return width + glyph.getMetrics().width;
};
// calculate total width of tuplet notation
var width = this.num_glyphs.reduce(addGlyphWidth, 0);
if (this.ratioed) {
width = this.denom_glyphs.reduce(addGlyphWidth, width);
width += this.point * 0.32;
}
var notation_center_x = this.x_pos + this.width / 2;
var notation_start_x = notation_center_x - width / 2;
// draw bracket if the tuplet is not beamed
if (this.bracketed) {
var line_width = this.width / 2 - width / 2 - 5;
// only draw the bracket if it has positive length
if (line_width > 0) {
this.context.fillRect(this.x_pos, this.y_pos, line_width, 1);
this.context.fillRect(this.x_pos + this.width / 2 + width / 2 + 5, this.y_pos, line_width, 1);
this.context.fillRect(this.x_pos, this.y_pos + (this.location === Tuplet.LOCATION_BOTTOM), 1, this.location * 10);
this.context.fillRect(this.x_pos + this.width, this.y_pos + (this.location === Tuplet.LOCATION_BOTTOM), 1, this.location * 10);
}
}
// draw numerator glyphs
var x_offset = 0;
this.num_glyphs.forEach(function (glyph) {
glyph.render(_this.context, notation_start_x + x_offset, _this.y_pos + _this.point / 3 - 2);
x_offset += glyph.getMetrics().width;
});
// display colon and denominator if the ratio is to be shown
if (this.ratioed) {
var colon_x = notation_start_x + x_offset + this.point * 0.16;
var colon_radius = this.point * 0.06;
this.context.beginPath();
this.context.arc(colon_x, this.y_pos - this.point * 0.08, colon_radius, 0, Math.PI * 2, true);
this.context.closePath();
this.context.fill();
this.context.beginPath();
this.context.arc(colon_x, this.y_pos + this.point * 0.12, colon_radius, 0, Math.PI * 2, true);
this.context.closePath();
this.context.fill();
x_offset += this.point * 0.32;
this.denom_glyphs.forEach(function (glyph) {
glyph.render(_this.context, notation_start_x + x_offset, _this.y_pos + _this.point / 3 - 2);
x_offset += glyph.getMetrics().width;
});
}
}
}]);
return Tuplet;
}();
function calculateStemDirection(notes) {
var lineSum = 0;
notes.forEach(function (note) {
if (note.keyProps) {
note.keyProps.forEach(function (keyProp) {
lineSum += keyProp.line - 3;
});
}
});
if (lineSum >= 0) {
return Stem.DOWN;
}
return Stem.UP;
}
var Beam = function () {
createClass(Beam, null, [{
key: 'getDefaultBeamGroups',
// Gets the default beam groups for a provided time signature.
// Attempts to guess if the time signature is not found in table.
// Currently this is fairly naive.
value: function getDefaultBeamGroups(time_sig) {
if (!time_sig || time_sig === 'c') {
time_sig = '4/4';
}
var defaults = {
'1/2': ['1/2'],
'2/2': ['1/2'],
'3/2': ['1/2'],
'4/2': ['1/2'],
'1/4': ['1/4'],
'2/4': ['1/4'],
'3/4': ['1/4'],
'4/4': ['1/4'],
'1/8': ['1/8'],
'2/8': ['2/8'],
'3/8': ['3/8'],
'4/8': ['2/8'],
'1/16': ['1/16'],
'2/16': ['2/16'],
'3/16': ['3/16'],
'4/16': ['2/16']
};
var groups = defaults[time_sig];
if (groups === undefined) {
// If no beam groups found, naively determine
// the beam groupings from the time signature
var beatTotal = parseInt(time_sig.split('/')[0], 10);
var beatValue = parseInt(time_sig.split('/')[1], 10);
var tripleMeter = beatTotal % 3 === 0;
if (tripleMeter) {
return [new Fraction(3, beatValue)];
} else if (beatValue > 4) {
return [new Fraction(2, beatValue)];
} else if (beatValue <= 4) {
return [new Fraction(1, beatValue)];
}
} else {
return groups.map(function (group) {
return new Fraction().parse(group);
});
}
return [new Fraction(1, 4)];
}
// A helper function to automatically build basic beams for a voice. For more
// complex auto-beaming use `Beam.generateBeams()`.
//
// Parameters:
// * `voice` - The voice to generate the beams for
// * `stem_direction` - A stem direction to apply to the entire voice
// * `groups` - An array of `Fraction` representing beat groupings for the beam
}, {
key: 'applyAndGetBeams',
value: function applyAndGetBeams(voice, stem_direction, groups) {
return Beam.generateBeams(voice.getTickables(), {
groups: groups,
stem_direction: stem_direction
});
}
// A helper function to autimatically build beams for a voice with
// configuration options.
//
// Example configuration object:
//
// ```
// config = {
// groups: [new Vex.Flow.Fraction(2, 8)],
// stem_direction: -1,
// beam_rests: true,
// beam_middle_only: true,
// show_stemlets: false
// };
// ```
//
// Parameters:
// * `notes` - An array of notes to create the beams for
// * `config` - The configuration object
// * `groups` - Array of `Fractions` that represent the beat structure to beam the notes
// * `stem_direction` - Set to apply the same direction to all notes
// * `beam_rests` - Set to `true` to include rests in the beams
// * `beam_middle_only` - Set to `true` to only beam rests in the middle of the beat
// * `show_stemlets` - Set to `true` to draw stemlets for rests
// * `maintain_stem_directions` - Set to `true` to not apply new stem directions
//
}, {
key: 'generateBeams',
value: function generateBeams(notes, config) {
if (!config) config = {};
if (!config.groups || !config.groups.length) {
config.groups = [new Fraction(2, 8)];
}
// Convert beam groups to tick amounts
var tickGroups = config.groups.map(function (group) {
if (!group.multiply) {
throw new Vex.RuntimeError('InvalidBeamGroups', 'The beam groups must be an array of Vex.Flow.Fractions');
}
return group.clone().multiply(Flow.RESOLUTION, 1);
});
var unprocessedNotes = notes;
var currentTickGroup = 0;
var noteGroups = [];
var currentGroup = [];
function getTotalTicks(vf_notes) {
return vf_notes.reduce(function (memo, note) {
return note.getTicks().clone().add(memo);
}, new Fraction(0, 1));
}
function nextTickGroup() {
if (tickGroups.length - 1 > currentTickGroup) {
currentTickGroup += 1;
} else {
currentTickGroup = 0;
}
}
function createGroups() {
var nextGroup = [];
unprocessedNotes.forEach(function (unprocessedNote) {
nextGroup = [];
if (unprocessedNote.shouldIgnoreTicks()) {
noteGroups.push(currentGroup);
currentGroup = nextGroup;
return; // Ignore untickables (like bar notes)
}
currentGroup.push(unprocessedNote);
var ticksPerGroup = tickGroups[currentTickGroup].clone();
var totalTicks = getTotalTicks(currentGroup);
// Double the amount of ticks in a group, if it's an unbeamable tuplet
var unbeamable = Flow.durationToNumber(unprocessedNote.duration) < 8;
if (unbeamable && unprocessedNote.tuplet) {
ticksPerGroup.numerator *= 2;
}
// If the note that was just added overflows the group tick total
if (totalTicks.greaterThan(ticksPerGroup)) {
// If the overflow note can be beamed, start the next group
// with it. Unbeamable notes leave the group overflowed.
if (!unbeamable) {
nextGroup.push(currentGroup.pop());
}
noteGroups.push(currentGroup);
currentGroup = nextGroup;
nextTickGroup();
} else if (totalTicks.equals(ticksPerGroup)) {
noteGroups.push(currentGroup);
currentGroup = nextGroup;
nextTickGroup();
}
});
// Adds any remainder notes
if (currentGroup.length > 0) {
noteGroups.push(currentGroup);
}
}
function getBeamGroups() {
return noteGroups.filter(function (group) {
if (group.length > 1) {
var beamable = true;
group.forEach(function (note) {
if (note.getIntrinsicTicks() >= Flow.durationToTicks('4')) {
beamable = false;
}
});
return beamable;
}
return false;
});
}
// Splits up groups by Rest
function sanitizeGroups() {
var sanitizedGroups = [];
noteGroups.forEach(function (group) {
var tempGroup = [];
group.forEach(function (note, index, group) {
var isFirstOrLast = index === 0 || index === group.length - 1;
var prevNote = group[index - 1];
var breaksOnEachRest = !config.beam_rests && note.isRest();
var breaksOnFirstOrLastRest = config.beam_rests && config.beam_middle_only && note.isRest() && isFirstOrLast;
var breakOnStemChange = false;
if (config.maintain_stem_directions && prevNote && !note.isRest() && !prevNote.isRest()) {
var prevDirection = prevNote.getStemDirection();
var currentDirection = note.getStemDirection();
breakOnStemChange = currentDirection !== prevDirection;
}
var isUnbeamableDuration = parseInt(note.duration, 10) < 8;
// Determine if the group should be broken at this note
var shouldBreak = breaksOnEachRest || breaksOnFirstOrLastRest || breakOnStemChange || isUnbeamableDuration;
if (shouldBreak) {
// Add current group
if (tempGroup.length > 0) {
sanitizedGroups.push(tempGroup);
}
// Start a new group. Include the current note if the group
// was broken up by stem direction, as that note needs to start
// the next group of notes
tempGroup = breakOnStemChange ? [note] : [];
} else {
// Add note to group
tempGroup.push(note);
}
});
// If there is a remaining group, add it as well
if (tempGroup.length > 0) {
sanitizedGroups.push(tempGroup);
}
});
noteGroups = sanitizedGroups;
}
function formatStems() {
noteGroups.forEach(function (group) {
var stemDirection = void 0;
if (config.maintain_stem_directions) {
var _note = findFirstNote(group);
stemDirection = _note ? _note.getStemDirection() : Stem.UP;
} else {
if (config.stem_direction) {
stemDirection = config.stem_direction;
} else {
stemDirection = calculateStemDirection(group);
}
}
applyStemDirection(group, stemDirection);
});
}
function findFirstNote(group) {
for (var _i = 0; _i < group.length; _i++) {
var _note2 = group[_i];
if (!_note2.isRest()) {
return _note2;
}
}
return false;
}
function applyStemDirection(group, direction) {
group.forEach(function (note) {
note.setStemDirection(direction);
});
}
function getTupletGroups() {
return noteGroups.filter(function (group) {
if (group[0]) {
return group[0].tuplet;
}
return false;
});
}
// Using closures to store the variables throughout the various functions
// IMO Keeps it this process lot cleaner - but not super consistent with
// the rest of the API's style - Silverwolf90 (Cyril)
createGroups();
sanitizeGroups();
formatStems();
// Get the notes to be beamed
var beamedNoteGroups = getBeamGroups();
// Get the tuplets in order to format them accurately
var tupletGroups = getTupletGroups();
// Create a Vex.Flow.Beam from each group of notes to be beamed
var beams = [];
beamedNoteGroups.forEach(function (group) {
var beam = new Beam(group);
if (config.show_stemlets) {
beam.render_options.show_stemlets = true;
}
if (config.secondary_breaks) {
beam.render_options.secondary_break_ticks = Flow.durationToTicks(config.secondary_breaks);
}
if (config.flat_beams === true) {
beam.render_options.flat_beams = true;
beam.render_options.flat_beam_offset = config.flat_beam_offset;
}
beams.push(beam);
});
// Reformat tuplets
tupletGroups.forEach(function (group) {
var firstNote = group[0];
for (var _i2 = 0; _i2 < group.length; ++_i2) {
if (group[_i2].hasStem()) {
firstNote = group[_i2];
break;
}
}
var tuplet = firstNote.tuplet;
if (firstNote.beam) tuplet.setBracketed(false);
if (firstNote.stem_direction === Stem.DOWN) {
tuplet.setTupletLocation(Tuplet.LOCATION_BOTTOM);
}
});
return beams;
}
}]);
function Beam(notes, auto_stem) {
classCallCheck(this, Beam);
if (!notes || notes === []) {
throw new Vex.RuntimeError('BadArguments', 'No notes provided for beam.');
}
if (notes.length === 1) {
throw new Vex.RuntimeError('BadArguments', 'Too few notes for beam.');
}
// Validate beam line, direction and ticks.
this.ticks = notes[0].getIntrinsicTicks();
if (this.ticks >= Flow.durationToTicks('4')) {
throw new Vex.RuntimeError('BadArguments', 'Beams can only be applied to notes shorter than a quarter note.');
}
var i = void 0; // shared iterator
var note = void 0;
this.stem_direction = Stem.UP;
for (i = 0; i < notes.length; ++i) {
note = notes[i];
if (note.hasStem()) {
this.stem_direction = note.getStemDirection();
break;
}
}
var stem_direction = this.stem_direction;
// Figure out optimal stem direction based on given notes
if (auto_stem && notes[0].getCategory() === 'stavenotes') {
stem_direction = calculateStemDirection(notes);
} else if (auto_stem && notes[0].getCategory() === 'tabnotes') {
// Auto Stem TabNotes
var stem_weight = notes.reduce(function (memo, note) {
return memo + note.stem_direction;
}, 0);
stem_direction = stem_weight > -1 ? Stem.UP : Stem.DOWN;
}
// Apply stem directions and attach beam to notes
for (i = 0; i < notes.length; ++i) {
note = notes[i];
if (auto_stem) {
note.setStemDirection(stem_direction);
this.stem_direction = stem_direction;
}
note.setBeam(this);
}
this.postFormatted = false;
this.notes = notes;
this.beam_count = this.getBeamCount();
this.break_on_indices = [];
this.render_options = {
beam_width: 5,
max_slope: 0.25,
min_slope: -0.25,
slope_iterations: 20,
slope_cost: 100,
show_stemlets: false,
stemlet_extension: 7,
partial_beam_length: 10,
flat_beams: false,
min_flat_beam_offset: 15
};
}
// The the rendering `context`
createClass(Beam, [{
key: 'setContext',
value: function setContext(context) {
this.context = context;return this;
}
// Get the notes in this beam
}, {
key: 'getNotes',
value: function getNotes() {
return this.notes;
}
// Get the max number of beams in the set of notes
}, {
key: 'getBeamCount',
value: function getBeamCount() {
var beamCounts = this.notes.map(function (note) {
return note.getGlyph().beam_count;
});
var maxBeamCount = beamCounts.reduce(function (max, beamCount) {
return beamCount > max ? beamCount : max;
});
return maxBeamCount;
}
// Set which note `indices` to break the secondary beam at
}, {
key: 'breakSecondaryAt',
value: function breakSecondaryAt(indices) {
this.break_on_indices = indices;
return this;
}
// Return the y coordinate for linear function
}, {
key: 'getSlopeY',
value: function getSlopeY(x, first_x_px, first_y_px, slope) {
return first_y_px + (x - first_x_px) * slope;
}
// Calculate the best possible slope for the provided notes
}, {
key: 'calculateSlope',
value: function calculateSlope() {
var first_note = this.notes[0];
var first_y_px = first_note.getStemExtents().topY;
var first_x_px = first_note.getStemX();
var inc = (this.render_options.max_slope - this.render_options.min_slope) / this.render_options.slope_iterations;
var min_cost = Number.MAX_VALUE;
var best_slope = 0;
var y_shift = 0;
// iterate through slope values to find best weighted fit
for (var slope = this.render_options.min_slope; slope <= this.render_options.max_slope; slope += inc) {
var total_stem_extension = 0;
var y_shift_tmp = 0;
// iterate through notes, calculating y shift and stem extension
for (var _i3 = 1; _i3 < this.notes.length; ++_i3) {
var _note3 = this.notes[_i3];
var x_px = _note3.getStemX();
var y_px = _note3.getStemExtents().topY;
var slope_y_px = this.getSlopeY(x_px, first_x_px, first_y_px, slope) + y_shift_tmp;
// beam needs to be shifted up to accommodate note
if (y_px * this.stem_direction < slope_y_px * this.stem_direction) {
var diff = Math.abs(y_px - slope_y_px);
y_shift_tmp += diff * -this.stem_direction;
total_stem_extension += diff * _i3;
} else {
// beam overshoots note, account for the difference
total_stem_extension += (y_px - slope_y_px) * this.stem_direction;
}
}
var last_note = this.notes[this.notes.length - 1];
var first_last_slope = (last_note.getStemExtents().topY - first_y_px) / (last_note.getStemX() - first_x_px);
// most engraving books suggest aiming for a slope about half the angle of the
// difference between the first and last notes' stem length;
var ideal_slope = first_last_slope / 2;
var distance_from_ideal = Math.abs(ideal_slope - slope);
// This tries to align most beams to something closer to the ideal_slope, but
// doesn't go crazy. To disable, set this.render_options.slope_cost = 0
var cost = this.render_options.slope_cost * distance_from_ideal + Math.abs(total_stem_extension);
// update state when a more ideal slope is found
if (cost < min_cost) {
min_cost = cost;
best_slope = slope;
y_shift = y_shift_tmp;
}
}
this.slope = best_slope;
this.y_shift = y_shift;
}
// Calculate a slope and y-shift for flat beams
}, {
key: 'calculateFlatSlope',
value: function calculateFlatSlope() {
// If a flat beam offset has not yet been supplied or calculated,
// generate one based on the notes in this particular note group
var total = 0;
var extreme_y = 0; // Store the highest or lowest note here
var extreme_beam_count = 0; // The beam count of the extreme note
var current_extreme = 0;
for (var _i4 = 0; _i4 < this.notes.length; _i4++) {
// Total up all of the offsets so we can average them out later
var _note4 = this.notes[_i4];
var top_y = _note4.getStemExtents().topY;
total += top_y;
// Store the highest (stems-up) or lowest (stems-down) note so the
// offset can be adjusted in case the average isn't enough
if (this.stem_direction === Stem.DOWN && current_extreme < top_y) {
current_extreme = top_y;
extreme_y = _note4.getNoteHeadBounds().y_bottom;
extreme_beam_count = _note4.getBeamCount();
} else if (this.stem_direction === Stem.UP && (current_extreme === 0 || current_extreme > top_y)) {
current_extreme = top_y;
extreme_y = _note4.getNoteHeadBounds().y_top;
extreme_beam_count = _note4.getBeamCount();
}
}
// Average the offsets to try and come up with a reasonable one that
// works for all of the notes in the beam group.
var offset = total / this.notes.length;
// In case the average isn't long enough, add or subtract some more
// based on the highest or lowest note (again, based on the stem
// direction). This also takes into account the added height due to
// the width of the beams.
var beam_width = this.render_options.beam_width * 1.5;
var extreme_test = this.render_options.min_flat_beam_offset + extreme_beam_count * beam_width;
var new_offset = extreme_y + extreme_test * -this.stem_direction;
if (this.stem_direction === Stem.DOWN && offset < new_offset) {
offset = extreme_y + extreme_test;
} else if (this.stem_direction === Stem.UP && offset > new_offset) {
offset = extreme_y - extreme_test;
}
if (!this.render_options.flat_beam_offset) {
// Set the offset for the group based on the calculations above.
this.render_options.flat_beam_offset = offset;
} else if (this.stem_direction === Stem.DOWN && offset > this.render_options.flat_beam_offset) {
this.render_options.flat_beam_offset = offset;
} else if (this.stem_direction === Stem.UP && offset < this.render_options.flat_beam_offset) {
this.render_options.flat_beam_offset = offset;
}
// for flat beams, the slope and y_shift are simply 0
this.slope = 0;
this.y_shift = 0;
}
// Create new stems for the notes in the beam, so that each stem
// extends into the beams.
}, {
key: 'applyStemExtensions',
value: function applyStemExtensions() {
var first_note = this.notes[0];
var first_y_px = first_note.getStemExtents().topY;
// If rendering flat beams, and an offset exists, set the y-coordinate to
// the offset so the stems all end at the beam offset.
if (this.render_options.flat_beams && this.render_options.flat_beam_offset) {
first_y_px = this.render_options.flat_beam_offset;
}
var first_x_px = first_note.getStemX();
for (var _i5 = 0; _i5 < this.notes.length; ++_i5) {
var _note5 = this.notes[_i5];
var x_px = _note5.getStemX();
var y_extents = _note5.getStemExtents();
var base_y_px = y_extents.baseY;
var top_y_px = y_extents.topY;
// If flat beams, set the top of the stem to the offset, rather than
// relying on the topY value from above.
if (this.render_options.flat_beams) {
top_y_px = first_y_px;
}
// For harmonic note heads, shorten stem length by 3 pixels
base_y_px += this.stem_direction * _note5.glyph.stem_offset;
// Don't go all the way to the top (for thicker stems)
var y_displacement = Flow.STEM_WIDTH;
if (!_note5.hasStem()) {
if (_note5.isRest() && this.render_options.show_stemlets) {
var centerGlyphX = _note5.getCenterGlyphX();
var width = this.render_options.beam_width;
var total_width = (this.beam_count - 1) * width * 1.5 + width;
var stemlet_height = total_width - y_displacement + this.render_options.stemlet_extension;
var beam_y = this.getSlopeY(centerGlyphX, first_x_px, first_y_px, this.slope) + this.y_shift;
var start_y = beam_y + Stem.HEIGHT * this.stem_direction;
var end_y = beam_y + stemlet_height * this.stem_direction;
// Draw Stemlet
_note5.setStem(new Stem({
x_begin: centerGlyphX,
x_end: centerGlyphX,
y_bottom: this.stem_direction === Stem.UP ? end_y : start_y,
y_top: this.stem_direction === Stem.UP ? start_y : end_y,
y_extend: y_displacement,
stem_extension: -1, // To avoid protruding through the beam
stem_direction: this.stem_direction
}));
}
continue;
}
var slope_y = this.getSlopeY(x_px, first_x_px, first_y_px, this.slope) + this.y_shift;
_note5.setStem(new Stem({
x_begin: x_px - Flow.STEM_WIDTH / 2,
x_end: x_px,
y_top: this.stem_direction === Stem.UP ? top_y_px : base_y_px,
y_bottom: this.stem_direction === Stem.UP ? base_y_px : top_y_px,
y_extend: y_displacement,
stem_extension: Math.abs(top_y_px - slope_y) - Stem.HEIGHT - 1,
stem_direction: this.stem_direction
}));
}
}
// Get the x coordinates for the beam lines of specific `duration`
}, {
key: 'getBeamLines',
value: function getBeamLines(duration) {
var beam_lines = [];
var beam_started = false;
var current_beam = null;
var partial_beam_length = this.render_options.partial_beam_length;
var previous_should_break = false;
var tick_tally = 0;
for (var _i6 = 0; _i6 < this.notes.length; ++_i6) {
var _note6 = this.notes[_i6];
// See if we need to break secondary beams on this note.
var ticks = _note6.getIntrinsicTicks();
tick_tally += ticks;
var should_break = false;
// 8th note beams are always drawn.
if (parseInt(duration, 10) >= 8) {
// First, check to see if any indices were set up through breakSecondaryAt()
should_break = this.break_on_indices.indexOf(_i6) !== -1;
// If the secondary breaks were auto-configured in the render options,
// handle that as well.
if (this.render_options.secondary_break_ticks && tick_tally >= this.render_options.secondary_break_ticks) {
tick_tally = 0;
should_break = true;
}
}
var note_gets_beam = ticks < Flow.durationToTicks(duration);
var stem_x = _note6.isRest() ? _note6.getCenterGlyphX() : _note6.getStemX();
// Check to see if the next note in the group will get a beam at this
// level. This will help to inform the partial beam logic below.
var next_note = this.notes[_i6 + 1];
var beam_next = next_note && next_note.getIntrinsicTicks() < Flow.durationToTicks(duration);
if (note_gets_beam) {
// This note gets a beam at the current level
if (beam_started) {
// We're currently in the middle of a beam. Just continue it on to
// the stem X of the current note.
current_beam = beam_lines[beam_lines.length - 1];
current_beam.end = stem_x;
// If a secondary beam break is set up, end the beam right now.
if (should_break) {
beam_started = false;
if (next_note && !beam_next && current_beam.end === null) {
// This note gets a beam,.but the next one does not. This means
// we need a partial pointing right.
current_beam.end = current_beam.start - partial_beam_length;
}
}
} else {
// No beam started yet. Start a new one.
current_beam = { start: stem_x, end: null };
beam_started = true;
if (!beam_next) {
// The next note doesn't get a beam. Draw a partial.
if ((previous_should_break || _i6 === 0) && next_note) {
// This is the first note (but not the last one), or it is
// following a secondary break. Draw a partial to the right.
current_beam.end = current_beam.start + partial_beam_length;
} else {
// By default, draw a partial to the left.
current_beam.end = current_beam.start - partial_beam_length;
}
} else if (should_break) {
// This note should have a secondary break after it. Even though
// we just started a beam, it needs to end immediately.
current_beam.end = current_beam.start - partial_beam_length;
beam_started = false;
}
beam_lines.push(current_beam);
}
} else {
// The current note does not get a beam.
beam_started = false;
}
// Store the secondary break flag to inform the partial beam logic in
// the next iteration of the loop.
previous_should_break = should_break;
}
// Add a partial beam pointing left if this is the last note in the group
var last_beam = beam_lines[beam_lines.length - 1];
if (last_beam && last_beam.end === null) {
last_beam.end = last_beam.start - partial_beam_length;
}
return beam_lines;
}
// Render the stems for each notes
}, {
key: 'drawStems',
value: function drawStems() {
var _this = this;
this.notes.forEach(function (note) {
if (note.getStem()) {
note.getStem().setContext(_this.context).draw();
}
}, this);
}
// Render the beam lines
}, {
key: 'drawBeamLines',
value: function drawBeamLines() {
if (!this.context) {
throw new Vex.RERR('NoCanvasContext', "Can't draw without a canvas context.");
}
var valid_beam_durations = ['4', '8', '16', '32', '64'];
var first_note = this.notes[0];
var first_y_px = first_note.getStemExtents().topY;
// For flat beams, set the first and last Y to the offset, rather than
// using the note's stem extents.
if (this.render_options.flat_beams && this.render_options.flat_beam_offset) {
first_y_px = this.render_options.flat_beam_offset;
}
var first_x_px = first_note.getStemX();
var beam_width = this.render_options.beam_width * this.stem_direction;
// Draw the beams.
for (var _i7 = 0; _i7 < valid_beam_durations.length; ++_i7) {
var duration = valid_beam_durations[_i7];
var beam_lines = this.getBeamLines(duration);
for (var j = 0; j < beam_lines.length; ++j) {
var beam_line = beam_lines[j];
var first_x = beam_line.start - (this.stem_direction === Stem.DOWN ? Flow.STEM_WIDTH / 2 : 0);
var first_y = this.getSlopeY(first_x, first_x_px, first_y_px, this.slope);
var last_x = beam_line.end + (this.stem_direction === 1 ? Flow.STEM_WIDTH / 3 : -Flow.STEM_WIDTH / 3);
var last_y = this.getSlopeY(last_x, first_x_px, first_y_px, this.slope);
this.context.beginPath();
this.context.moveTo(first_x, first_y + this.y_shift);
this.context.lineTo(first_x, first_y + beam_width + this.y_shift);
this.context.lineTo(last_x + 1, last_y + beam_width + this.y_shift);
this.context.lineTo(last_x + 1, last_y + this.y_shift);
this.context.closePath();
this.context.fill();
}
first_y_px += beam_width * 1.5;
}
}
// Pre-format the beam
}, {
key: 'preFormat',
value: function preFormat() {
return this;
}
// Post-format the beam. This can only be called after
// the notes in the beam have both `x` and `y` values. ie: they've
// been formatted and have staves
}, {
key: 'postFormat',
value: function postFormat() {
if (this.postFormatted) return;
// Calculate a smart slope if we're not forcing the beams to be flat.
if (this.render_options.flat_beams) {
this.calculateFlatSlope();
} else {
this.calculateSlope();
}
this.applyStemExtensions();
this.postFormatted = true;
}
// Render the beam to the canvas context
}, {
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoCanvasContext', "Can't draw without a canvas context.");
}
if (this.unbeamable) return;
if (!this.postFormatted) {
this.postFormat();
}
this.drawStems();
this.drawBeamLines();
}
}]);
return Beam;
}();
function drawBoldDoubleLine(ctx, type, topX, topY, botY) {
if (type !== StaveConnector.type.BOLD_DOUBLE_LEFT && type !== StaveConnector.type.BOLD_DOUBLE_RIGHT) {
throw new Vex.RERR('InvalidConnector', 'A REPEAT_BEGIN or REPEAT_END type must be provided.');
}
var x_shift = 3;
var variableWidth = 3.5; // Width for avoiding anti-aliasing width issues
var thickLineOffset = 2; // For aesthetics
if (type === StaveConnector.type.BOLD_DOUBLE_RIGHT) {
x_shift = -5; // Flips the side of the thin line
variableWidth = 3;
}
// Thin line
ctx.fillRect(topX + x_shift, topY, 1, botY - topY);
// Thick line
ctx.fillRect(topX - thickLineOffset, topY, variableWidth, botY - topY);
}
var StaveConnector = function () {
createClass(StaveConnector, null, [{
key: 'type',
// SINGLE_LEFT and SINGLE are the same value for compatibility
// with older versions of vexflow which didn't have right sided
// stave connectors
get: function get() {
return {
SINGLE_RIGHT: 0,
SINGLE_LEFT: 1,
SINGLE: 1,
DOUBLE: 2,
BRACE: 3,
BRACKET: 4,
BOLD_DOUBLE_LEFT: 5,
BOLD_DOUBLE_RIGHT: 6,
THIN_DOUBLE: 7,
NONE: 8
};
}
}]);
function StaveConnector(top_stave, bottom_stave) {
classCallCheck(this, StaveConnector);
this.thickness = Flow.STAVE_LINE_THICKNESS;
this.width = 3;
this.top_stave = top_stave;
this.bottom_stave = bottom_stave;
this.type = StaveConnector.type.DOUBLE;
this.font = {
family: 'times',
size: 16,
weight: 'normal'
};
// 1. Offset Bold Double Left to align with offset Repeat Begin bars
// 2. Offset BRACE type not to overlap with another StaveConnector
this.x_shift = 0;
this.texts = [];
}
createClass(StaveConnector, [{
key: 'setContext',
value: function setContext(ctx) {
this.ctx = ctx;
return this;
}
}, {
key: 'setType',
value: function setType(type) {
if (type >= StaveConnector.type.SINGLE_RIGHT && type <= StaveConnector.type.NONE) {
this.type = type;
}
return this;
}
}, {
key: 'setText',
value: function setText(text, options) {
this.texts.push({
content: text,
options: Vex.Merge({ shift_x: 0, shift_y: 0 }, options)
});
return this;
}
}, {
key: 'setFont',
value: function setFont(font) {
Vex.Merge(this.font, font);
}
}, {
key: 'setXShift',
value: function setXShift(x_shift) {
if (typeof x_shift !== 'number') {
throw Vex.RERR('InvalidType', 'x_shift must be a Number');
}
this.x_shift = x_shift;
return this;
}
}, {
key: 'draw',
value: function draw() {
if (!this.ctx) {
throw new Vex.RERR('NoContext', "Can't draw without a context.");
}
var topY = this.top_stave.getYForLine(0);
var botY = this.bottom_stave.getYForLine(this.bottom_stave.getNumLines() - 1) + this.thickness;
var width = this.width;
var topX = this.top_stave.getX();
var isRightSidedConnector = this.type === StaveConnector.type.SINGLE_RIGHT || this.type === StaveConnector.type.BOLD_DOUBLE_RIGHT || this.type === StaveConnector.type.THIN_DOUBLE;
if (isRightSidedConnector) {
topX = this.top_stave.getX() + this.top_stave.width;
}
var attachment_height = botY - topY;
switch (this.type) {
case StaveConnector.type.SINGLE:
width = 1;
break;
case StaveConnector.type.SINGLE_LEFT:
width = 1;
break;
case StaveConnector.type.SINGLE_RIGHT:
width = 1;
break;
case StaveConnector.type.DOUBLE:
topX -= this.width + 2;
break;
case StaveConnector.type.BRACE:
{
width = 12;
// May need additional code to draw brace
var x1 = this.top_stave.getX() - 2 + this.x_shift;
var y1 = topY;
var x3 = x1;
var y3 = botY;
var x2 = x1 - width;
var y2 = y1 + attachment_height / 2.0;
var cpx1 = x2 - 0.90 * width;
var cpy1 = y1 + 0.2 * attachment_height;
var cpx2 = x1 + 1.10 * width;
var cpy2 = y2 - 0.135 * attachment_height;
var cpx3 = cpx2;
var cpy3 = y2 + 0.135 * attachment_height;
var cpx4 = cpx1;
var cpy4 = y3 - 0.2 * attachment_height;
var cpx5 = x2 - width;
var cpy5 = cpy4;
var cpx6 = x1 + 0.40 * width;
var cpy6 = y2 + 0.135 * attachment_height;
var cpx7 = cpx6;
var cpy7 = y2 - 0.135 * attachment_height;
var cpx8 = cpx5;
var cpy8 = cpy1;
this.ctx.beginPath();
this.ctx.moveTo(x1, y1);
this.ctx.bezierCurveTo(cpx1, cpy1, cpx2, cpy2, x2, y2);
this.ctx.bezierCurveTo(cpx3, cpy3, cpx4, cpy4, x3, y3);
this.ctx.bezierCurveTo(cpx5, cpy5, cpx6, cpy6, x2, y2);
this.ctx.bezierCurveTo(cpx7, cpy7, cpx8, cpy8, x1, y1);
this.ctx.fill();
this.ctx.stroke();
break;
}case StaveConnector.type.BRACKET:
topY -= 4;
botY += 4;
attachment_height = botY - topY;
Glyph.renderGlyph(this.ctx, topX - 5, topY - 3, 40, 'v1b', true);
Glyph.renderGlyph(this.ctx, topX - 5, botY + 3, 40, 'v10', true);
topX -= this.width + 2;
break;
case StaveConnector.type.BOLD_DOUBLE_LEFT:
drawBoldDoubleLine(this.ctx, this.type, topX + this.x_shift, topY, botY);
break;
case StaveConnector.type.BOLD_DOUBLE_RIGHT:
drawBoldDoubleLine(this.ctx, this.type, topX, topY, botY);
break;
case StaveConnector.type.THIN_DOUBLE:
width = 1;
break;
case StaveConnector.type.NONE:
break;
default:
throw new Vex.RERR('InvalidType', 'The provided StaveConnector.type (' + this.type + ') is invalid');
}
if (this.type !== StaveConnector.type.BRACE && this.type !== StaveConnector.type.BOLD_DOUBLE_LEFT && this.type !== StaveConnector.type.BOLD_DOUBLE_RIGHT && this.type !== StaveConnector.type.NONE) {
this.ctx.fillRect(topX, topY, width, attachment_height);
}
// If the connector is a thin double barline, draw the paralell line
if (this.type === StaveConnector.type.THIN_DOUBLE) {
this.ctx.fillRect(topX - 3, topY, width, attachment_height);
}
this.ctx.save();
this.ctx.lineWidth = 2;
this.ctx.setFont(this.font.family, this.font.size, this.font.weight);
// Add stave connector text
for (var i = 0; i < this.texts.length; i++) {
var text = this.texts[i];
var text_width = this.ctx.measureText('' + text.content).width;
var x = this.top_stave.getX() - text_width - 24 + text.options.shift_x;
var y = (this.top_stave.getYForLine(0) + this.bottom_stave.getBottomLineY()) / 2 + text.options.shift_y;
this.ctx.fillText('' + text.content, x, y + 4);
}
this.ctx.restore();
}
}]);
return StaveConnector;
}();
var Tickable = function () {
function Tickable() {
classCallCheck(this, Tickable);
this.intrinsicTicks = 0;
this.tickMultiplier = new Fraction(1, 1);
this.ticks = new Fraction(0, 1);
this.width = 0;
this.x_shift = 0; // Shift from tick context
this.voice = null;
this.tickContext = null;
this.modifierContext = null;
this.modifiers = [];
this.preFormatted = false;
this.postFormatted = false;
this.tuplet = null;
this.tupletStack = [];
// For interactivity
this.id = null;
this.elem = null;
this.align_center = false;
this.center_x_shift = 0; // Shift from tick context if center aligned
// This flag tells the formatter to ignore this tickable during
// formatting and justification. It is set by tickables such as BarNote.
this.ignore_ticks = false;
this.context = null;
}
createClass(Tickable, [{
key: 'setContext',
value: function setContext(context) {
this.context = context;
}
// Set the DOM ID of the element. Must be called before draw(). TODO: Update
// ID of element if has already been rendered.
}, {
key: 'setId',
value: function setId(id) {
this.id = id;
}
}, {
key: 'getId',
value: function getId() {
return this.id;
}
}, {
key: 'getElem',
value: function getElem() {
return this.elem;
}
}, {
key: 'getBoundingBox',
value: function getBoundingBox() {
return null;
}
}, {
key: 'getTicks',
value: function getTicks() {
return this.ticks;
}
}, {
key: 'shouldIgnoreTicks',
value: function shouldIgnoreTicks() {
return this.ignore_ticks;
}
}, {
key: 'getWidth',
value: function getWidth() {
return this.width;
}
}, {
key: 'setXShift',
value: function setXShift(x) {
this.x_shift = x;
}
}, {
key: 'getCenterXShift',
value: function getCenterXShift() {
if (this.isCenterAligned()) {
return this.center_x_shift;
}
return 0;
}
}, {
key: 'isCenterAligned',
value: function isCenterAligned() {
return this.align_center;
}
}, {
key: 'setCenterAlignment',
value: function setCenterAlignment(align_center) {
this.align_center = align_center;
return this;
}
// Every tickable must be associated with a voice. This allows formatters
// and preFormatter to associate them with the right modifierContexts.
}, {
key: 'getVoice',
value: function getVoice() {
if (!this.voice) throw new Vex.RERR('NoVoice', 'Tickable has no voice.');
return this.voice;
}
}, {
key: 'setVoice',
value: function setVoice(voice) {
this.voice = voice;
}
}, {
key: 'getTuplet',
value: function getTuplet() {
return this.tuplet;
}
/*
* resetTuplet
* @param tuplet -- the specific tuplet to reset
* if this is not provided, all tuplets are reset.
* @returns this
*
* Removes any prior tuplets from the tick calculation and
* resets the intrinsic tick value to
*/
}, {
key: 'resetTuplet',
value: function resetTuplet(tuplet) {
var noteCount = void 0;
var notesOccupied = void 0;
if (tuplet) {
var i = this.tupletStack.indexOf(tuplet);
if (i !== -1) {
this.tupletStack.splice(i, 1);
noteCount = tuplet.getNoteCount();
notesOccupied = tuplet.getNotesOccupied();
// Revert old multiplier by inverting numerator & denom.:
this.applyTickMultiplier(noteCount, notesOccupied);
}
return this;
}
while (this.tupletStack.length) {
tuplet = this.tupletStack.pop();
noteCount = tuplet.getNoteCount();
notesOccupied = tuplet.getNotesOccupied();
// Revert old multiplier by inverting numerator & denom.:
this.applyTickMultiplier(noteCount, notesOccupied);
}
return this;
}
}, {
key: 'setTuplet',
value: function setTuplet(tuplet) {
// Attach to new tuplet
if (tuplet) {
this.tupletStack.push(tuplet);
var noteCount = tuplet.getNoteCount();
var notesOccupied = tuplet.getNotesOccupied();
this.applyTickMultiplier(notesOccupied, noteCount);
}
this.tuplet = tuplet;
return this;
}
/** optional, if tickable has modifiers **/
}, {
key: 'addToModifierContext',
value: function addToModifierContext(mc) {
this.modifierContext = mc;
// Add modifiers to modifier context (if any)
this.preFormatted = false;
}
/** optional, if tickable has modifiers **/
}, {
key: 'addModifier',
value: function addModifier(mod) {
this.modifiers.push(mod);
this.preFormatted = false;
return this;
}
}, {
key: 'setTickContext',
value: function setTickContext(tc) {
this.tickContext = tc;
this.preFormatted = false;
}
}, {
key: 'preFormat',
value: function preFormat() {
if (this.preFormatted) return;
this.width = 0;
if (this.modifierContext) {
this.modifierContext.preFormat();
this.width += this.modifierContext.getWidth();
}
}
}, {
key: 'postFormat',
value: function postFormat() {
if (this.postFormatted) return this;
this.postFormatted = true;
return this;
}
}, {
key: 'getIntrinsicTicks',
value: function getIntrinsicTicks() {
return this.intrinsicTicks;
}
}, {
key: 'setIntrinsicTicks',
value: function setIntrinsicTicks(intrinsicTicks) {
this.intrinsicTicks = intrinsicTicks;
this.ticks = this.tickMultiplier.clone().multiply(this.intrinsicTicks);
}
}, {
key: 'getTickMultiplier',
value: function getTickMultiplier() {
return this.tickMultiplier;
}
}, {
key: 'applyTickMultiplier',
value: function applyTickMultiplier(numerator, denominator) {
this.tickMultiplier.multiply(numerator, denominator);
this.ticks = this.tickMultiplier.clone().multiply(this.intrinsicTicks);
}
}, {
key: 'setDuration',
value: function setDuration(duration) {
var ticks = duration.numerator * (Flow.RESOLUTION / duration.denominator);
this.ticks = this.tickMultiplier.clone().multiply(ticks);
this.intrinsicTicks = this.ticks.value();
}
}]);
return Tickable;
}();
var Note = function (_Tickable) {
inherits(Note, _Tickable);
createClass(Note, null, [{
key: 'plotMetrics',
// Debug helper. Displays various note metrics for the given
// note.
value: function plotMetrics(ctx, note, yPos) {
var metrics = note.getMetrics();
var xStart = note.getAbsoluteX() - metrics.modLeftPx - metrics.extraLeftPx;
var xPre1 = note.getAbsoluteX() - metrics.extraLeftPx;
var xAbs = note.getAbsoluteX();
var xPost1 = note.getAbsoluteX() + metrics.noteWidth;
var xPost2 = note.getAbsoluteX() + metrics.noteWidth + metrics.extraRightPx;
var xEnd = note.getAbsoluteX() + metrics.noteWidth + metrics.extraRightPx + metrics.modRightPx;
var xWidth = xEnd - xStart;
ctx.save();
ctx.setFont('Arial', 8, '');
ctx.fillText(Math.round(xWidth) + 'px', xStart + note.getXShift(), yPos);
var y = yPos + 7;
function stroke(x1, x2, color) {
ctx.beginPath();
ctx.setStrokeStyle(color);
ctx.setFillStyle(color);
ctx.setLineWidth(3);
ctx.moveTo(x1 + note.getXShift(), y);
ctx.lineTo(x2 + note.getXShift(), y);
ctx.stroke();
}
stroke(xStart, xPre1, 'red');
stroke(xPre1, xAbs, '#999');
stroke(xAbs, xPost1, 'green');
stroke(xPost1, xPost2, '#999');
stroke(xPost2, xEnd, 'red');
stroke(xStart - note.getXShift(), xStart, '#DDD'); // Shift
Vex.drawDot(ctx, xAbs + note.getXShift(), y, 'blue');
ctx.restore();
}
// Every note is a tickable, i.e., it can be mutated by the `Formatter` class for
// positioning and layout.
// To create a new note you need to provide a `note_struct`, which consists
// of the following fields:
//
// `type`: The note type (e.g., `r` for rest, `s` for slash notes, etc.)
// `dots`: The number of dots, which affects the duration.
// `duration`: The time length (e.g., `q` for quarter, `h` for half, `8` for eighth etc.)
//
// The range of values for these parameters are available in `src/tables.js`.
}, {
key: 'CATEGORY',
get: function get() {
return 'note';
}
}]);
function Note(note_struct) {
classCallCheck(this, Note);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(Note).call(this));
if (!note_struct) {
throw new Vex.RuntimeError('BadArguments', 'Note must have valid initialization data to identify duration and type.');
}
// Parse `note_struct` and get note properties.
var initData = Flow.parseNoteData(note_struct);
if (!initData) {
throw new Vex.RuntimeError('BadArguments', 'Invalid note initialization object: ' + JSON.stringify(note_struct));
}
// Set note properties from parameters.
_this.duration = initData.duration;
_this.dots = initData.dots;
_this.noteType = initData.type;
if (note_struct.duration_override) {
// Custom duration
_this.setDuration(note_struct.duration_override);
} else {
// Default duration
_this.setIntrinsicTicks(initData.ticks);
}
_this.modifiers = [];
// Get the glyph code for this note from the font.
_this.glyph = Flow.durationToGlyph(_this.duration, _this.noteType);
if (_this.positions && (_typeof(_this.positions) !== 'object' || !_this.positions.length)) {
throw new Vex.RuntimeError('BadArguments', 'Note keys must be array type.');
}
// Note to play for audio players.
_this.playNote = null;
// Positioning contexts used by the Formatter.
_this.tickContext = null; // The current tick context.
_this.modifierContext = null;
_this.ignore_ticks = false;
// Positioning variables
_this.width = 0; // Width in pixels calculated after preFormat
_this.extraLeftPx = 0; // Extra room on left for offset note head
_this.extraRightPx = 0; // Extra room on right for offset note head
_this.x_shift = 0; // X shift from tick context X
_this.left_modPx = 0; // Max width of left modifiers
_this.right_modPx = 0; // Max width of right modifiers
_this.voice = null; // The voice that this note is in
_this.preFormatted = false; // Is this note preFormatted?
_this.ys = []; // list of y coordinates for each note
// we need to hold on to these for ties and beams.
if (note_struct.align_center) {
_this.setCenterAlignment(note_struct.align_center);
}
// The render surface.
_this.context = null;
_this.stave = null;
_this.render_options = {
annotation_spacing: 5,
stave_padding: 12
};
return _this;
}
// Get and set the play note, which is arbitrary data that can be used by an
// audio player.
createClass(Note, [{
key: 'getPlayNote',
value: function getPlayNote() {
return this.playNote;
}
}, {
key: 'setPlayNote',
value: function setPlayNote(note) {
this.playNote = note;return this;
}
// Don't play notes by default, call them rests. This is also used by things like
// beams and dots for positioning.
}, {
key: 'isRest',
value: function isRest() {
return false;
}
// TODO(0xfe): Why is this method here?
}, {
key: 'addStroke',
value: function addStroke(index, stroke) {
stroke.setNote(this);
stroke.setIndex(index);
this.modifiers.push(stroke);
this.setPreFormatted(false);
return this;
}
// Get and set the target stave.
}, {
key: 'getStave',
value: function getStave() {
return this.stave;
}
}, {
key: 'setStave',
value: function setStave(stave) {
this.stave = stave;
this.setYs([stave.getYForLine(0)]); // Update Y values if the stave is changed.
this.context = this.stave.context;
return this;
}
// `Note` is not really a modifier, but is used in
// a `ModifierContext`.
}, {
key: 'getCategory',
value: function getCategory() {
return Note.CATEGORY;
}
// Set the rendering context for the note.
}, {
key: 'setContext',
value: function setContext(context) {
this.context = context;return this;
}
// Get and set spacing to the left and right of the notes.
}, {
key: 'getExtraLeftPx',
value: function getExtraLeftPx() {
return this.extraLeftPx;
}
}, {
key: 'getExtraRightPx',
value: function getExtraRightPx() {
return this.extraRightPx;
}
}, {
key: 'setExtraLeftPx',
value: function setExtraLeftPx(x) {
this.extraLeftPx = x;return this;
}
}, {
key: 'setExtraRightPx',
value: function setExtraRightPx(x) {
this.extraRightPx = x;return this;
}
// Returns true if this note has no duration (e.g., bar notes, spacers, etc.)
}, {
key: 'shouldIgnoreTicks',
value: function shouldIgnoreTicks() {
return this.ignore_ticks;
}
// Get the stave line number for the note.
}, {
key: 'getLineNumber',
value: function getLineNumber() {
return 0;
}
// Get the stave line number for rest.
}, {
key: 'getLineForRest',
value: function getLineForRest() {
return 0;
}
// Get the glyph associated with this note.
}, {
key: 'getGlyph',
value: function getGlyph() {
return this.glyph;
}
// Set and get Y positions for this note. Each Y value is associated with
// an individual pitch/key within the note/chord.
}, {
key: 'setYs',
value: function setYs(ys) {
this.ys = ys;return this;
}
}, {
key: 'getYs',
value: function getYs() {
if (this.ys.length === 0) {
throw new Vex.RERR('NoYValues', 'No Y-values calculated for this note.');
}
return this.ys;
}
// Get the Y position of the space above the stave onto which text can
// be rendered.
}, {
key: 'getYForTopText',
value: function getYForTopText(text_line) {
if (!this.stave) {
throw new Vex.RERR('NoStave', 'No stave attached to this note.');
}
return this.stave.getYForTopText(text_line);
}
// Get a `BoundingBox` for this note.
}, {
key: 'getBoundingBox',
value: function getBoundingBox() {
return null;
}
// Returns the voice that this note belongs in.
}, {
key: 'getVoice',
value: function getVoice() {
if (!this.voice) throw new Vex.RERR('NoVoice', 'Note has no voice.');
return this.voice;
}
// Attach this note to `voice`.
}, {
key: 'setVoice',
value: function setVoice(voice) {
this.voice = voice;
this.preFormatted = false;
return this;
}
// Get and set the `TickContext` for this note.
}, {
key: 'getTickContext',
value: function getTickContext() {
return this.tickContext;
}
}, {
key: 'setTickContext',
value: function setTickContext(tc) {
this.tickContext = tc;
this.preFormatted = false;
return this;
}
// Accessors for the note type.
}, {
key: 'getDuration',
value: function getDuration() {
return this.duration;
}
}, {
key: 'isDotted',
value: function isDotted() {
return this.dots > 0;
}
}, {
key: 'hasStem',
value: function hasStem() {
return false;
}
}, {
key: 'getDots',
value: function getDots() {
return this.dots;
}
}, {
key: 'getNoteType',
value: function getNoteType() {
return this.noteType;
}
}, {
key: 'setBeam',
value: function setBeam() {
return this;
} // ignore parameters
// Attach this note to a modifier context.
}, {
key: 'setModifierContext',
value: function setModifierContext(mc) {
this.modifierContext = mc;return this;
}
// Attach a modifier to this note.
}, {
key: 'addModifier',
value: function addModifier(modifier) {
var index = arguments.length <= 1 || arguments[1] === undefined ? 0 : arguments[1];
modifier.setNote(this);
modifier.setIndex(index);
this.modifiers.push(modifier);
this.setPreFormatted(false);
return this;
}
// Get the coordinates for where modifiers begin.
}, {
key: 'getModifierStartXY',
value: function getModifierStartXY() {
if (!this.preFormatted) {
throw new Vex.RERR('UnformattedNote', "Can't call GetModifierStartXY on an unformatted note");
}
return {
x: this.getAbsoluteX(),
y: this.ys[0]
};
}
// Get bounds and metrics for this note.
//
// Returns a struct with fields:
// `width`: The total width of the note (including modifiers.)
// `noteWidth`: The width of the note head only.
// `left_shift`: The horizontal displacement of the note.
// `modLeftPx`: Start `X` for left modifiers.
// `modRightPx`: Start `X` for right modifiers.
// `extraLeftPx`: Extra space on left of note.
// `extraRightPx`: Extra space on right of note.
}, {
key: 'getMetrics',
value: function getMetrics() {
if (!this.preFormatted) {
throw new Vex.RERR('UnformattedNote', "Can't call getMetrics on an unformatted note.");
}
var modLeftPx = 0;
var modRightPx = 0;
if (this.modifierContext != null) {
modLeftPx = this.modifierContext.state.left_shift;
modRightPx = this.modifierContext.state.right_shift;
}
var width = this.getWidth();
return {
width: width,
noteWidth: width - modLeftPx - modRightPx - this.extraLeftPx - this.extraRightPx,
left_shift: this.x_shift, // TODO(0xfe): Make style consistent
// Modifiers, accidentals etc.
modLeftPx: modLeftPx,
modRightPx: modRightPx,
// Displaced note head on left or right.
extraLeftPx: this.extraLeftPx,
extraRightPx: this.extraRightPx
};
}
// Get and set width of note. Used by the formatter for positioning.
}, {
key: 'setWidth',
value: function setWidth(width) {
this.width = width;
}
}, {
key: 'getWidth',
value: function getWidth() {
if (!this.preFormatted) {
throw new Vex.RERR('UnformattedNote', "Can't call GetWidth on an unformatted note.");
}
return this.width + (this.modifierContext ? this.modifierContext.getWidth() : 0);
}
// Displace note by `x` pixels. Used by the formatter.
}, {
key: 'setXShift',
value: function setXShift(x) {
this.x_shift = x;return this;
}
}, {
key: 'getXShift',
value: function getXShift() {
return this.x_shift;
}
// Get `X` position of this tick context.
}, {
key: 'getX',
value: function getX() {
if (!this.tickContext) {
throw new Vex.RERR('NoTickContext', 'Note needs a TickContext assigned for an X-Value');
}
return this.tickContext.getX() + this.x_shift;
}
// Get the absolute `X` position of this note's tick context. This
// excludes x_shift, so you'll need to factor it in if you're
// looking for the post-formatted x-position.
}, {
key: 'getAbsoluteX',
value: function getAbsoluteX() {
if (!this.tickContext) {
throw new Vex.RERR('NoTickContext', 'Note needs a TickContext assigned for an X-Value');
}
// Position note to left edge of tick context.
var x = this.tickContext.getX();
if (this.stave) {
x += this.stave.getNoteStartX() + this.render_options.stave_padding;
}
if (this.isCenterAligned()) {
x += this.getCenterXShift();
}
return x;
}
}, {
key: 'setPreFormatted',
value: function setPreFormatted(value) {
this.preFormatted = value;
// Maintain the width of left and right modifiers in pixels.
if (this.preFormatted) {
var extra = this.tickContext.getExtraPx();
this.left_modPx = Math.max(this.left_modPx, extra.left);
this.right_modPx = Math.max(this.right_modPx, extra.right);
}
}
}]);
return Note;
}(Tickable);
// To enable logging for this class. Set `Vex.Flow.NoteHead.DEBUG` to `true`.
function L$3() {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
if (NoteHead.DEBUG) Vex.L('Vex.Flow.NoteHead', args);
}
// Draw slashnote head manually. No glyph exists for this.
//
// Parameters:
// * `ctx`: the Canvas context
// * `duration`: the duration of the note. ex: "4"
// * `x`: the x coordinate to draw at
// * `y`: the y coordinate to draw at
// * `stem_direction`: the direction of the stem
function drawSlashNoteHead(ctx, duration, x, y, stem_direction) {
var width = 15 + Flow.STEM_WIDTH / 2;
ctx.save();
ctx.setLineWidth(Flow.STEM_WIDTH);
var fill = false;
if (Flow.durationToNumber(duration) > 2) {
fill = true;
}
if (!fill) x -= Flow.STEM_WIDTH / 2 * stem_direction;
ctx.beginPath();
ctx.moveTo(x, y + 11);
ctx.lineTo(x, y + 1);
ctx.lineTo(x + width, y - 10);
ctx.lineTo(x + width, y);
ctx.lineTo(x, y + 11);
ctx.closePath();
if (fill) {
ctx.fill();
} else {
ctx.stroke();
}
if (Flow.durationToFraction(duration).equals(0.5)) {
var breve_lines = [-3, -1, width + 1, width + 3];
for (var i = 0; i < breve_lines.length; i++) {
ctx.beginPath();
ctx.moveTo(x + breve_lines[i], y - 10);
ctx.lineTo(x + breve_lines[i], y + 11);
ctx.stroke();
}
}
ctx.restore();
}
var NoteHead = function (_Note) {
inherits(NoteHead, _Note);
createClass(NoteHead, null, [{
key: 'CATEGORY',
get: function get() {
return 'notehead';
}
}]);
function NoteHead(head_options) {
classCallCheck(this, NoteHead);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(NoteHead).call(this, head_options));
_this.index = head_options.index;
_this.x = head_options.x || 0;
_this.y = head_options.y || 0;
_this.note_type = head_options.note_type;
_this.duration = head_options.duration;
_this.displaced = head_options.displaced || false;
_this.stem_direction = head_options.stem_direction || StaveNote.STEM_UP;
_this.line = head_options.line;
// Get glyph code based on duration and note type. This could be
// regular notes, rests, or other custom codes.
_this.glyph = Flow.durationToGlyph(_this.duration, _this.note_type);
if (!_this.glyph) {
throw new Vex.RuntimeError('BadArguments', 'No glyph found for duration \'' + _this.duration + '\' and type \'' + _this.note_type + '\'');
}
_this.glyph_code = _this.glyph.code_head;
_this.x_shift = head_options.x_shift;
if (head_options.custom_glyph_code) {
_this.custom_glyph = true;
_this.glyph_code = head_options.custom_glyph_code;
}
_this.context = null;
_this.style = head_options.style;
_this.slashed = head_options.slashed;
Vex.Merge(_this.render_options, {
glyph_font_scale: 35, // font size for note heads
stroke_px: 3 });
if (head_options.glyph_font_scale) {
_this.render_options.glyph_font_scale = head_options.glyph_font_scale;
}
_this.setWidth(_this.glyph.head_width);
return _this;
}
createClass(NoteHead, [{
key: 'getCategory',
value: function getCategory() {
return NoteHead.CATEGORY;
}
// Set the Cavnas context for drawing
}, {
key: 'setContext',
value: function setContext(context) {
this.context = context;return this;
}
// Get the width of the notehead
}, {
key: 'getWidth',
value: function getWidth() {
return this.width;
}
// Determine if the notehead is displaced
}, {
key: 'isDisplaced',
value: function isDisplaced() {
return this.displaced === true;
}
// Get/set the notehead's style
//
// `style` is an `object` with the following properties: `shadowColor`,
// `shadowBlur`, `fillStyle`, `strokeStyle`
}, {
key: 'getStyle',
value: function getStyle() {
return this.style;
}
}, {
key: 'setStyle',
value: function setStyle(style) {
this.style = style;return this;
}
// Get the glyph data
}, {
key: 'getGlyph',
value: function getGlyph() {
return this.glyph;
}
// Set the X coordinate
}, {
key: 'setX',
value: function setX(x) {
this.x = x;return this;
}
// get/set the Y coordinate
}, {
key: 'getY',
value: function getY() {
return this.y;
}
}, {
key: 'setY',
value: function setY(y) {
this.y = y;return this;
}
// Get/set the stave line the notehead is placed on
}, {
key: 'getLine',
value: function getLine() {
return this.line;
}
}, {
key: 'setLine',
value: function setLine(line) {
this.line = line;return this;
}
// Get the canvas `x` coordinate position of the notehead.
}, {
key: 'getAbsoluteX',
value: function getAbsoluteX() {
// If the note has not been preformatted, then get the static x value
// Otherwise, it's been formatted and we should use it's x value relative
// to its tick context
var x = !this.preFormatted ? this.x : get(Object.getPrototypeOf(NoteHead.prototype), 'getAbsoluteX', this).call(this);
return x + (this.displaced ? this.width * this.stem_direction : 0);
}
// Get the `BoundingBox` for the `NoteHead`
}, {
key: 'getBoundingBox',
value: function getBoundingBox() {
if (!this.preFormatted) {
throw new Vex.RERR('UnformattedNote', "Can't call getBoundingBox on an unformatted note.");
}
var spacing = this.stave.getSpacingBetweenLines();
var half_spacing = spacing / 2;
var min_y = this.y - half_spacing;
return new Flow.BoundingBox(this.getAbsoluteX(), min_y, this.width, spacing);
}
// Apply current style to Canvas `context`
}, {
key: 'applyStyle',
value: function applyStyle(context) {
var style = this.getStyle();
if (style.shadowColor) context.setShadowColor(style.shadowColor);
if (style.shadowBlur) context.setShadowBlur(style.shadowBlur);
if (style.fillStyle) context.setFillStyle(style.fillStyle);
if (style.strokeStyle) context.setStrokeStyle(style.strokeStyle);
return this;
}
// Set notehead to a provided `stave`
}, {
key: 'setStave',
value: function setStave(stave) {
var line = this.getLine();
this.stave = stave;
this.setY(stave.getYForNote(line));
this.context = this.stave.context;
return this;
}
// Pre-render formatting
}, {
key: 'preFormat',
value: function preFormat() {
if (this.preFormatted) return this;
var glyph = this.getGlyph();
var width = glyph.head_width + this.extraLeftPx + this.extraRightPx;
this.setWidth(width);
this.setPreFormatted(true);
return this;
}
// Draw the notehead
}, {
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoCanvasContext', "Can't draw without a canvas context.");
}
var ctx = this.context;
var head_x = this.getAbsoluteX();
var y = this.y;
L$3("Drawing note head '", this.note_type, this.duration, "' at", head_x, y);
// Begin and end positions for head.
var stem_direction = this.stem_direction;
var glyph_font_scale = this.render_options.glyph_font_scale;
var line = this.line;
// If note above/below the staff, draw the small staff
if (line <= 0 || line >= 6) {
var line_y = y;
var floor = Math.floor(line);
if (line < 0 && floor - line === -0.5) {
line_y -= 5;
} else if (line > 6 && floor - line === -0.5) {
line_y += 5;
}
if (this.note_type !== 'r') {
ctx.fillRect(head_x - this.render_options.stroke_px, line_y, this.getGlyph().head_width + this.render_options.stroke_px * 2, 1);
}
}
if (this.note_type === 's') {
drawSlashNoteHead(ctx, this.duration, head_x, y, stem_direction);
} else {
if (this.style) {
ctx.save();
this.applyStyle(ctx);
Glyph.renderGlyph(ctx, head_x, y, glyph_font_scale, this.glyph_code);
ctx.restore();
} else {
Glyph.renderGlyph(ctx, head_x, y, glyph_font_scale, this.glyph_code);
}
}
}
}]);
return NoteHead;
}(Note);
// To enable logging for this class. Set `Vex.Flow.StemmableNote.DEBUG` to `true`.
function L$4() {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
if (StemmableNote.DEBUG) Vex.L('Vex.Flow.StemmableNote', args);
}
var StemmableNote = function (_Note) {
inherits(StemmableNote, _Note);
function StemmableNote(note_struct) {
classCallCheck(this, StemmableNote);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(StemmableNote).call(this, note_struct));
_this.stem = null;
_this.stemExtensionOverride = null;
_this.beam = null;
return _this;
}
// Get and set the note's `Stem`
createClass(StemmableNote, [{
key: 'getStem',
value: function getStem() {
return this.stem;
}
}, {
key: 'setStem',
value: function setStem(stem) {
this.stem = stem;return this;
}
// Builds and sets a new stem
}, {
key: 'buildStem',
value: function buildStem() {
var stem = new Stem();
this.setStem(stem);
return this;
}
// Get the full length of stem
}, {
key: 'getStemLength',
value: function getStemLength() {
return Stem.HEIGHT + this.getStemExtension();
}
// Get the number of beams for this duration
}, {
key: 'getBeamCount',
value: function getBeamCount() {
var glyph = this.getGlyph();
if (glyph) {
return glyph.beam_count;
} else {
return 0;
}
}
// Get the minimum length of stem
}, {
key: 'getStemMinumumLength',
value: function getStemMinumumLength() {
var frac = Flow.durationToFraction(this.duration);
var length = frac.value() <= 1 ? 0 : 20;
// if note is flagged, cannot shorten beam
switch (this.duration) {
case '8':
if (this.beam == null) length = 35;
break;
case '16':
length = this.beam == null ? 35 : 25;
break;
case '32':
length = this.beam == null ? 45 : 35;
break;
case '64':
length = this.beam == null ? 50 : 40;
break;
case '128':
length = this.beam == null ? 55 : 45;
break;
default:
break;
}
return length;
}
// Get/set the direction of the stem
}, {
key: 'getStemDirection',
value: function getStemDirection() {
return this.stem_direction;
}
}, {
key: 'setStemDirection',
value: function setStemDirection(direction) {
if (!direction) direction = Stem.UP;
if (direction !== Stem.UP && direction !== Stem.DOWN) {
throw new Vex.RERR('BadArgument', 'Invalid stem direction: ' + direction);
}
this.stem_direction = direction;
if (this.stem) {
this.stem.setDirection(direction);
this.stem.setExtension(this.getStemExtension());
}
this.beam = null;
if (this.preFormatted) {
this.preFormat();
}
return this;
}
// Get the `x` coordinate of the stem
}, {
key: 'getStemX',
value: function getStemX() {
var x_begin = this.getAbsoluteX() + this.x_shift;
var x_end = this.getAbsoluteX() + this.x_shift + this.glyph.head_width;
var stem_x = this.stem_direction === Stem.DOWN ? x_begin : x_end;
stem_x -= Stem.WIDTH / 2 * this.stem_direction;
return stem_x;
}
// Get the `x` coordinate for the center of the glyph.
// Used for `TabNote` stems and stemlets over rests
}, {
key: 'getCenterGlyphX',
value: function getCenterGlyphX() {
return this.getAbsoluteX() + this.x_shift + this.glyph.head_width / 2;
}
// Get the stem extension for the current duration
}, {
key: 'getStemExtension',
value: function getStemExtension() {
var glyph = this.getGlyph();
if (this.stemExtensionOverride != null) {
return this.stemExtensionOverride;
}
if (glyph) {
return this.getStemDirection() === 1 ? glyph.stem_up_extension : glyph.stem_down_extension;
}
return 0;
}
// Set the stem length to a specific. Will override the default length.
}, {
key: 'setStemLength',
value: function setStemLength(height) {
this.stemExtensionOverride = height - Stem.HEIGHT;
return this;
}
// Get the top and bottom `y` values of the stem.
}, {
key: 'getStemExtents',
value: function getStemExtents() {
if (!this.ys || this.ys.length === 0) {
throw new Vex.RERR('NoYValues', "Can't get top stem Y when note has no Y values.");
}
var topY = this.ys[0];
var baseY = this.ys[0];
var stemHeight = Stem.HEIGHT + this.getStemExtension();
for (var i = 0; i < this.ys.length; ++i) {
var stemTop = this.ys[i] + stemHeight * -this.stem_direction;
if (this.stem_direction === Stem.DOWN) {
topY = Math.max(topY, stemTop);
baseY = Math.min(baseY, this.ys[i]);
} else {
topY = Math.min(topY, stemTop);
baseY = Math.max(baseY, this.ys[i]);
}
if (this.noteType === 's' || this.noteType === 'x') {
topY -= this.stem_direction * 7;
baseY -= this.stem_direction * 7;
}
}
L$4('Stem extents: ', topY, baseY);
return { topY: topY, baseY: baseY };
}
// Sets the current note's beam
}, {
key: 'setBeam',
value: function setBeam(beam) {
this.beam = beam;return this;
}
// Get the `y` value for the top/bottom modifiers at a specific `textLine`
}, {
key: 'getYForTopText',
value: function getYForTopText(textLine) {
var extents = this.getStemExtents();
if (this.hasStem()) {
return Math.min(this.stave.getYForTopText(textLine), extents.topY - this.render_options.annotation_spacing * (textLine + 1));
} else {
return this.stave.getYForTopText(textLine);
}
}
}, {
key: 'getYForBottomText',
value: function getYForBottomText(textLine) {
var extents = this.getStemExtents();
if (this.hasStem()) {
return Math.max(this.stave.getYForTopText(textLine), extents.baseY + this.render_options.annotation_spacing * textLine);
} else {
return this.stave.getYForBottomText(textLine);
}
}
}, {
key: 'hasFlag',
value: function hasFlag() {
return Flow.durationToGlyph(this.duration).flag;
}
// Post format the note
}, {
key: 'postFormat',
value: function postFormat() {
if (this.beam) this.beam.postFormat();
this.postFormatted = true;
return this;
}
// Render the stem onto the canvas
}, {
key: 'drawStem',
value: function drawStem(stem_struct) {
if (!this.context) {
throw new Vex.RERR('NoCanvasContext', "Can't draw without a canvas context.");
}
this.setStem(new Stem(stem_struct));
this.stem.setContext(this.context).draw();
}
}]);
return StemmableNote;
}(Note);
// To enable logging for this class. Set `Vex.Flow.Modifier.DEBUG` to `true`.
function L$5() {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
if (Modifier.DEBUG) Vex.L('Vex.Flow.Modifier', args);
}
var Modifier = function () {
createClass(Modifier, null, [{
key: 'CATEGORY',
get: function get() {
return 'none';
}
// Modifiers can be positioned almost anywhere, relative to a note.
}, {
key: 'Position',
get: function get() {
return {
LEFT: 1,
RIGHT: 2,
ABOVE: 3,
BELOW: 4
};
}
}]);
function Modifier() {
classCallCheck(this, Modifier);
this.width = 0;
this.context = null;
// Modifiers are attached to a note and an index. An index is a
// specific head in a chord.
this.note = null;
this.index = null;
// The `text_line` is reserved space above or below a stave.
this.text_line = 0;
this.position = Modifier.Position.LEFT;
this.modifier_context = null;
this.x_shift = 0;
this.y_shift = 0;
this.spacingFromNextModifier = 0;
L$5('Created new modifier');
}
// Every modifier has a category. The `ModifierContext` uses this to determine
// the type and order of the modifiers.
createClass(Modifier, [{
key: 'getCategory',
value: function getCategory() {
return Modifier.CATEGORY;
}
// Get and set modifier widths.
}, {
key: 'getWidth',
value: function getWidth() {
return this.width;
}
}, {
key: 'setWidth',
value: function setWidth(width) {
this.width = width;return this;
}
// Get and set attached note (`StaveNote`, `TabNote`, etc.)
}, {
key: 'getNote',
value: function getNote() {
return this.note;
}
}, {
key: 'setNote',
value: function setNote(note) {
this.note = note;return this;
}
// Get and set note index, which is a specific note in a chord.
}, {
key: 'getIndex',
value: function getIndex() {
return this.index;
}
}, {
key: 'setIndex',
value: function setIndex(index) {
this.index = index;return this;
}
// Get and set rendering context.
}, {
key: 'getContext',
value: function getContext() {
return this.context;
}
}, {
key: 'setContext',
value: function setContext(context) {
this.context = context;return this;
}
// Every modifier must be part of a `ModifierContext`.
}, {
key: 'getModifierContext',
value: function getModifierContext() {
return this.modifier_context;
}
}, {
key: 'setModifierContext',
value: function setModifierContext(c) {
this.modifier_context = c;return this;
}
// Get and set articulation position.
}, {
key: 'getPosition',
value: function getPosition() {
return this.position;
}
}, {
key: 'setPosition',
value: function setPosition(position) {
this.position = position;return this;
}
// Set the `text_line` for the modifier.
}, {
key: 'setTextLine',
value: function setTextLine(line) {
this.text_line = line;return this;
}
// Shift modifier down `y` pixels. Negative values shift up.
}, {
key: 'setYShift',
value: function setYShift(y) {
this.y_shift = y;return this;
}
}, {
key: 'setSpacingFromNextModifier',
value: function setSpacingFromNextModifier(x) {
this.spacingFromNextModifier = x;
}
}, {
key: 'getSpacingFromNextModifier',
value: function getSpacingFromNextModifier() {
return this.spacingFromNextModifier;
}
// Shift modifier `x` pixels in the direction of the modifier. Negative values
// shift reverse.
}, {
key: 'setXShift',
value: function setXShift(x) {
this.x_shift = 0;
if (this.position === Modifier.Position.LEFT) {
this.x_shift -= x;
} else {
this.x_shift += x;
}
}
}, {
key: 'getXShift',
value: function getXShift() {
return this.x_shift;
}
// Render the modifier onto the canvas.
}, {
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoCanvasContext', "Can't draw without a canvas context.");
}
throw new Vex.RERR('MethodNotImplemented', 'draw() not implemented for this modifier.');
}
}]);
return Modifier;
}();
var Dot = function (_Modifier) {
inherits(Dot, _Modifier);
createClass(Dot, null, [{
key: 'format',
// Arrange dots inside a ModifierContext.
value: function format(dots, state) {
var right_shift = state.right_shift;
var dot_spacing = 1;
if (!dots || dots.length === 0) return false;
var dot_list = [];
for (var i = 0; i < dots.length; ++i) {
var dot = dots[i];
var note = dot.getNote();
var props = void 0;
var shift = void 0;
// Only StaveNote has .getKeyProps()
if (typeof note.getKeyProps === 'function') {
props = note.getKeyProps()[dot.getIndex()];
shift = props.displaced ? note.getExtraRightPx() : 0;
} else {
// Else it's a TabNote
props = { line: 0.5 }; // Shim key props for dot placement
shift = 0;
}
dot_list.push({ line: props.line, shift: shift, note: note, dot: dot });
}
// Sort dots by line number.
dot_list.sort(function (a, b) {
return b.line - a.line;
});
var dot_shift = right_shift;
var x_width = 0;
var last_line = null;
var last_note = null;
var prev_dotted_space = null;
var half_shiftY = 0;
for (var _i = 0; _i < dot_list.length; ++_i) {
var _dot_list$_i = dot_list[_i];
var _dot = _dot_list$_i.dot;
var _note = _dot_list$_i.note;
var _shift = _dot_list$_i.shift;
var line = _dot_list$_i.line;
// Reset the position of the dot every line.
if (line !== last_line || _note !== last_note) {
dot_shift = _shift;
}
if (!_note.isRest() && line !== last_line) {
if (Math.abs(line % 1) === 0.5) {
// note is on a space, so no dot shift
half_shiftY = 0;
} else if (!_note.isRest()) {
// note is on a line, so shift dot to space above the line
half_shiftY = 0.5;
if (last_note != null && !last_note.isRest() && last_line - line === 0.5) {
// previous note on a space, so shift dot to space below the line
half_shiftY = -0.5;
} else if (line + half_shiftY === prev_dotted_space) {
// previous space is dotted, so shift dot to space below the line
half_shiftY = -0.5;
}
}
}
// convert half_shiftY to a multiplier for dots.draw()
_dot.dot_shiftY = -half_shiftY;
prev_dotted_space = line + half_shiftY;
_dot.setXShift(dot_shift);
dot_shift += _dot.getWidth() + dot_spacing; // spacing
x_width = dot_shift > x_width ? dot_shift : x_width;
last_line = line;
last_note = _note;
}
// Update state.
state.right_shift += x_width;
return true;
}
/**
* @constructor
*/
}, {
key: 'CATEGORY',
get: function get() {
return 'dots';
}
}]);
function Dot() {
classCallCheck(this, Dot);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(Dot).call(this));
_this.note = null;
_this.index = null;
_this.position = Modifier.Position.RIGHT;
_this.radius = 2;
_this.setWidth(5);
_this.dot_shiftY = 0;
return _this;
}
createClass(Dot, [{
key: 'getCategory',
value: function getCategory() {
return Dot.CATEGORY;
}
}, {
key: 'setNote',
value: function setNote(note) {
this.note = note;
if (this.note.getCategory() === 'gracenotes') {
this.radius *= 0.50;
this.setWidth(3);
}
}
}, {
key: 'setDotShiftY',
value: function setDotShiftY(y) {
this.dot_shiftY = y;return this;
}
}, {
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoContext', "Can't draw dot without a context.");
}
if (!this.note || this.index === null) {
throw new Vex.RERR('NoAttachedNote', "Can't draw dot without a note and index.");
}
var lineSpace = this.note.stave.options.spacing_between_lines_px;
var start = this.note.getModifierStartXY(this.position, this.index);
// Set the starting y coordinate to the base of the stem for TabNotes
if (this.note.getCategory() === 'tabnotes') {
start.y = this.note.getStemExtents().baseY;
}
var x = start.x + this.x_shift + this.width - this.radius;
var y = start.y + this.y_shift + this.dot_shiftY * lineSpace;
var ctx = this.context;
ctx.beginPath();
ctx.arc(x, y, this.radius, 0, Math.PI * 2, false);
ctx.fill();
}
}]);
return Dot;
}(Modifier);
// To enable logging for this class. Set `Vex.Flow.StaveNote.DEBUG` to `true`.
function L$2() {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
if (StaveNote.DEBUG) Vex.L('Vex.Flow.StaveNote', args);
}
// Helper methods for rest positioning in ModifierContext.
function shiftRestVertical(rest, note, dir) {
var delta = (note.isrest ? 0.0 : 1.0) * dir;
rest.line += delta;
rest.maxLine += delta;
rest.minLine += delta;
rest.note.setKeyLine(0, rest.note.getKeyLine(0) + delta);
}
// Called from formatNotes :: center a rest between two notes
function centerRest(rest, noteU, noteL) {
var delta = rest.line - Vex.MidLine(noteU.minLine, noteL.maxLine);
rest.note.setKeyLine(0, rest.note.getKeyLine(0) - delta);
rest.line -= delta;
rest.maxLine -= delta;
rest.minLine -= delta;
}
var StaveNote = function (_StemmableNote) {
inherits(StaveNote, _StemmableNote);
createClass(StaveNote, null, [{
key: 'format',
// ## Static Methods
//
// Format notes inside a ModifierContext.
value: function format(notes, state) {
if (!notes || notes.length < 2) return false;
if (notes[0].getStave() != null) return StaveNote.formatByY(notes, state);
var notesList = [];
for (var i = 0; i < notes.length; i++) {
var props = notes[i].getKeyProps();
var line = props[0].line;
var minL = props[props.length - 1].line;
var stemDirection = notes[i].getStemDirection();
var stemMax = notes[i].getStemLength() / 10;
var stemMin = notes[i].getStemMinumumLength() / 10;
var maxL = void 0;
if (notes[i].isRest()) {
maxL = line + notes[i].glyph.line_above;
minL = line - notes[i].glyph.line_below;
} else {
maxL = stemDirection === 1 ? props[props.length - 1].line + stemMax : props[props.length - 1].line;
minL = stemDirection === 1 ? props[0].line : props[0].line - stemMax;
}
notesList.push({
line: props[0].line, // note/rest base line
maxLine: maxL, // note/rest upper bounds line
minLine: minL, // note/rest lower bounds line
isrest: notes[i].isRest(),
stemDirection: stemDirection,
stemMax: stemMax, // Maximum (default) note stem length;
stemMin: stemMin, // minimum note stem length
voice_shift: notes[i].getVoiceShiftWidth(),
is_displaced: notes[i].isDisplaced(), // note manually displaced
note: notes[i]
});
}
var voices = notesList.length;
var noteU = notesList[0];
var noteM = voices > 2 ? notesList[1] : null;
var noteL = voices > 2 ? notesList[2] : notesList[1];
// for two voice backward compatibility, ensure upper voice is stems up
// for three voices, the voices must be in order (upper, middle, lower)
if (voices === 2 && noteU.stemDirection === -1 && noteL.stemDirection === 1) {
noteU = notesList[1];
noteL = notesList[0];
}
var voiceXShift = Math.max(noteU.voice_shift, noteL.voice_shift);
var xShift = 0;
var stemDelta = void 0;
// Test for two voice note intersection
if (voices === 2) {
var lineSpacing = noteU.stemDirection === noteL.stemDirection ? 0.0 : 0.5;
// if top voice is a middle voice, check stem intersection with lower voice
if (noteU.stemDirection === noteL.stemDirection && noteU.minLine <= noteL.maxLine) {
if (!noteU.isrest) {
stemDelta = Math.abs(noteU.line - (noteL.maxLine + 0.5));
stemDelta = Math.max(stemDelta, noteU.stemMin);
noteU.minLine = noteU.line - stemDelta;
noteU.note.setStemLength(stemDelta * 10);
}
}
if (noteU.minLine <= noteL.maxLine + lineSpacing) {
if (noteU.isrest) {
// shift rest up
shiftRestVertical(noteU, noteL, 1);
} else if (noteL.isrest) {
// shift rest down
shiftRestVertical(noteL, noteU, -1);
} else {
xShift = voiceXShift;
if (noteU.stemDirection === noteL.stemDirection) {
// upper voice is middle voice, so shift it right
noteU.note.setXShift(xShift + 3);
} else {
// shift lower voice right
noteL.note.setXShift(xShift);
}
}
}
// format complete
return true;
}
// Check middle voice stem intersection with lower voice
if (noteM !== null && noteM.minLine < noteL.maxLine + 0.5) {
if (!noteM.isrest) {
stemDelta = Math.abs(noteM.line - (noteL.maxLine + 0.5));
stemDelta = Math.max(stemDelta, noteM.stemMin);
noteM.minLine = noteM.line - stemDelta;
noteM.note.setStemLength(stemDelta * 10);
}
}
// For three voices, test if rests can be repositioned
//
// Special case 1 :: middle voice rest between two notes
//
if (noteM.isrest && !noteU.isrest && !noteL.isrest) {
if (noteU.minLine <= noteM.maxLine || noteM.minLine <= noteL.maxLine) {
var restHeight = noteM.maxLine - noteM.minLine;
var space = noteU.minLine - noteL.maxLine;
if (restHeight < space) {
// center middle voice rest between the upper and lower voices
centerRest(noteM, noteU, noteL);
} else {
xShift = voiceXShift + 3; // shift middle rest right
noteM.note.setXShift(xShift);
}
// format complete
return true;
}
}
// Special case 2 :: all voices are rests
if (noteU.isrest && noteM.isrest && noteL.isrest) {
// Shift upper voice rest up
shiftRestVertical(noteU, noteM, 1);
// Shift lower voice rest down
shiftRestVertical(noteL, noteM, -1);
// format complete
return true;
}
// Test if any other rests can be repositioned
if (noteM.isrest && noteU.isrest && noteM.minLine <= noteL.maxLine) {
// Shift middle voice rest up
shiftRestVertical(noteM, noteL, 1);
}
if (noteM.isrest && noteL.isrest && noteU.minLine <= noteM.maxLine) {
// Shift middle voice rest down
shiftRestVertical(noteM, noteU, -1);
}
if (noteU.isrest && noteU.minLine <= noteM.maxLine) {
// shift upper voice rest up;
shiftRestVertical(noteU, noteM, 1);
}
if (noteL.isrest && noteM.minLine <= noteL.maxLine) {
// shift lower voice rest down
shiftRestVertical(noteL, noteM, -1);
}
// If middle voice intersects upper or lower voice
if (!noteU.isrest && !noteM.isrest && noteU.minLine <= noteM.maxLine + 0.5 || !noteM.isrest && !noteL.isrest && noteM.minLine <= noteL.maxLine) {
xShift = voiceXShift + 3; // shift middle note right
noteM.note.setXShift(xShift);
}
return true;
}
}, {
key: 'formatByY',
value: function formatByY(notes, state) {
// NOTE: this function does not support more than two voices per stave
// use with care.
var hasStave = true;
for (var i = 0; i < notes.length; i++) {
hasStave = hasStave && notes[i].getStave() != null;
}
if (!hasStave) {
throw new Vex.RERR('Stave Missing', 'All notes must have a stave - Vex.Flow.ModifierContext.formatMultiVoice!');
}
var xShift = 0;
for (var _i = 0; _i < notes.length - 1; _i++) {
var topNote = notes[_i];
var bottomNote = notes[_i + 1];
if (topNote.getStemDirection() === Stem.DOWN) {
topNote = notes[_i + 1];
bottomNote = notes[_i];
}
var topKeys = topNote.getKeyProps();
var bottomKeys = bottomNote.getKeyProps();
var topY = topNote.getStave().getYForLine(topKeys[0].line);
var bottomY = bottomNote.getStave().getYForLine(bottomKeys[bottomKeys.length - 1].line);
var lineSpace = topNote.getStave().options.spacing_between_lines_px;
if (Math.abs(topY - bottomY) === lineSpace / 2) {
xShift = topNote.getVoiceShiftWidth();
bottomNote.setXShift(xShift);
}
}
state.right_shift += xShift;
}
}, {
key: 'postFormat',
value: function postFormat(notes) {
if (!notes) return false;
notes.forEach(function (note) {
return note.postFormat();
});
return true;
}
}, {
key: 'CATEGORY',
get: function get() {
return 'stavenotes';
}
}, {
key: 'STEM_UP',
get: function get() {
return Stem.UP;
}
}, {
key: 'STEM_DOWN',
get: function get() {
return Stem.DOWN;
}
}]);
function StaveNote(noteStruct) {
classCallCheck(this, StaveNote);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(StaveNote).call(this, noteStruct));
_this.keys = noteStruct.keys;
_this.clef = noteStruct.clef;
_this.octave_shift = noteStruct.octave_shift;
_this.beam = null;
// Pull note rendering properties
_this.glyph = Flow.durationToGlyph(_this.duration, _this.noteType);
if (!_this.glyph) {
throw new Vex.RuntimeError('BadArguments', 'Invalid note initialization data (No glyph found): ' + JSON.stringify(noteStruct));
}
// if true, displace note to right
_this.displaced = false;
_this.dot_shiftY = 0;
// per-pitch properties
_this.keyProps = [];
// for displaced ledger lines
_this.use_default_head_x = false;
// Drawing
_this.note_heads = [];
_this.modifiers = [];
Vex.Merge(_this.render_options, {
// font size for note heads and rests
glyph_font_scale: 35,
// number of stroke px to the left and right of head
stroke_px: 3
});
_this.calculateKeyProps();
_this.buildStem();
// Set the stem direction
if (noteStruct.auto_stem) {
_this.autoStem();
} else {
_this.setStemDirection(noteStruct.stem_direction);
}
_this.buildNoteHeads();
// Calculate left/right padding
_this.calcExtraPx();
return _this;
}
createClass(StaveNote, [{
key: 'getCategory',
value: function getCategory() {
return StaveNote.CATEGORY;
}
// Builds a `Stem` for the note
}, {
key: 'buildStem',
value: function buildStem() {
var glyph = this.getGlyph();
var yExtend = glyph.code_head === 'v95' || glyph.code_head === 'v3e' ? -4 : 0;
var stem = new Stem({ yExtend: yExtend });
if (this.isRest()) {
stem.hide = true;
}
this.setStem(stem);
}
// Builds a `NoteHead` for each key in the note
}, {
key: 'buildNoteHeads',
value: function buildNoteHeads() {
var stemDirection = this.getStemDirection();
var keys = this.getKeys();
var lastLine = null;
var lineDiff = null;
var displaced = false;
// Draw notes from bottom to top.
// For down-stem notes, we draw from top to bottom.
var start = void 0;
var end = void 0;
var step = void 0;
if (stemDirection === Stem.UP) {
start = 0;
end = keys.length;
step = 1;
} else if (stemDirection === Stem.DOWN) {
start = keys.length - 1;
end = -1;
step = -1;
}
for (var i = start; i !== end; i += step) {
var noteProps = this.keyProps[i];
var line = noteProps.line;
// Keep track of last line with a note head, so that consecutive heads
// are correctly displaced.
if (lastLine === null) {
lastLine = line;
} else {
lineDiff = Math.abs(lastLine - line);
if (lineDiff === 0 || lineDiff === 0.5) {
displaced = !displaced;
} else {
displaced = false;
this.use_default_head_x = true;
}
}
lastLine = line;
var notehead = new NoteHead({
duration: this.duration,
note_type: this.noteType,
displaced: displaced,
stem_direction: stemDirection,
custom_glyph_code: noteProps.code,
glyph_font_scale: this.render_options.glyph_font_scale,
x_shift: noteProps.shift_right,
line: noteProps.line
});
this.note_heads[i] = notehead;
}
}
// Automatically sets the stem direction based on the keys in the note
}, {
key: 'autoStem',
value: function autoStem() {
// Figure out optimal stem direction based on given notes
this.minLine = this.keyProps[0].line;
this.maxLine = this.keyProps[this.keyProps.length - 1].line;
var MIDDLE_LINE = 3;
var decider = (this.minLine + this.maxLine) / 2;
var stemDirection = decider < MIDDLE_LINE ? Stem.UP : Stem.DOWN;
this.setStemDirection(stemDirection);
}
// Calculates and stores the properties for each key in the note
}, {
key: 'calculateKeyProps',
value: function calculateKeyProps() {
var lastLine = null;
for (var i = 0; i < this.keys.length; ++i) {
var key = this.keys[i];
// All rests use the same position on the line.
// if (this.glyph.rest) key = this.glyph.position;
if (this.glyph.rest) this.glyph.position = key;
var options = { octave_shift: this.octave_shift || 0 };
var props = Flow.keyProperties(key, this.clef, options);
if (!props) {
throw new Vex.RuntimeError('BadArguments', 'Invalid key for note properties: ' + key);
}
// Override line placement for default rests
if (props.key === 'R') {
if (this.duration === '1' || this.duration === 'w') {
props.line = 4;
} else {
props.line = 3;
}
}
// Calculate displacement of this note
var line = props.line;
if (lastLine === null) {
lastLine = line;
} else {
if (Math.abs(lastLine - line) === 0.5) {
this.displaced = true;
props.displaced = true;
// Have to mark the previous note as
// displaced as well, for modifier placement
if (this.keyProps.length > 0) {
this.keyProps[i - 1].displaced = true;
}
}
}
lastLine = line;
this.keyProps.push(props);
}
// Sort the notes from lowest line to highest line
lastLine = -1000;
this.keyProps.forEach(function (key) {
if (key.line < lastLine) {
Vex.W('Unsorted keys in note will be sorted. ' + 'See https://github.com/0xfe/vexflow/issues/104 for details.');
}
lastLine = key.line;
});
this.keyProps.sort(function (a, b) {
return a.line - b.line;
});
}
// Get the `BoundingBox` for the entire note
}, {
key: 'getBoundingBox',
value: function getBoundingBox() {
if (!this.preFormatted) {
throw new Vex.RERR('UnformattedNote', "Can't call getBoundingBox on an unformatted note.");
}
var _getMetrics = this.getMetrics();
var w = _getMetrics.width;
var modLeftPx = _getMetrics.modLeftPx;
var extraLeftPx = _getMetrics.extraLeftPx;
var x = this.getAbsoluteX() - modLeftPx - extraLeftPx;
var minY = 0;
var maxY = 0;
var halfLineSpacing = this.getStave().getSpacingBetweenLines() / 2;
var lineSpacing = halfLineSpacing * 2;
if (this.isRest()) {
var y = this.ys[0];
var frac = Flow.durationToFraction(this.duration);
if (frac.equals(1) || frac.equals(2)) {
minY = y - halfLineSpacing;
maxY = y + halfLineSpacing;
} else {
minY = y - this.glyph.line_above * lineSpacing;
maxY = y + this.glyph.line_below * lineSpacing;
}
} else if (this.glyph.stem) {
var ys = this.getStemExtents();
ys.baseY += halfLineSpacing * this.stem_direction;
minY = Vex.Min(ys.topY, ys.baseY);
maxY = Vex.Max(ys.topY, ys.baseY);
} else {
minY = null;
maxY = null;
for (var i = 0; i < this.ys.length; ++i) {
var yy = this.ys[i];
if (i === 0) {
minY = yy;
maxY = yy;
} else {
minY = Vex.Min(yy, minY);
maxY = Vex.Max(yy, maxY);
}
}
minY -= halfLineSpacing;
maxY += halfLineSpacing;
}
return new BoundingBox(x, minY, w, maxY - minY);
}
// Gets the line number of the top or bottom note in the chord.
// If `isTopNote` is `true` then get the top note
}, {
key: 'getLineNumber',
value: function getLineNumber(isTopNote) {
if (!this.keyProps.length) {
throw new Vex.RERR('NoKeyProps', "Can't get bottom note line, because note is not initialized properly.");
}
var resultLine = this.keyProps[0].line;
// No precondition assumed for sortedness of keyProps array
for (var i = 0; i < this.keyProps.length; i++) {
var thisLine = this.keyProps[i].line;
if (isTopNote) {
if (thisLine > resultLine) resultLine = thisLine;
} else {
if (thisLine < resultLine) resultLine = thisLine;
}
}
return resultLine;
}
// Determine if current note is a rest
}, {
key: 'isRest',
value: function isRest() {
return this.glyph.rest;
}
// Determine if the current note is a chord
}, {
key: 'isChord',
value: function isChord() {
return !this.isRest() && this.keys.length > 1;
}
// Determine if the `StaveNote` has a stem
}, {
key: 'hasStem',
value: function hasStem() {
return this.glyph.stem;
}
// Get the `y` coordinate for text placed on the top/bottom of a
// note at a desired `text_line`
}, {
key: 'getYForTopText',
value: function getYForTopText(textLine) {
var extents = this.getStemExtents();
return Math.min(this.stave.getYForTopText(textLine), extents.topY - this.render_options.annotation_spacing * (textLine + 1));
}
}, {
key: 'getYForBottomText',
value: function getYForBottomText(textLine) {
var extents = this.getStemExtents();
return Math.max(this.stave.getYForTopText(textLine), extents.baseY + this.render_options.annotation_spacing * textLine);
}
// Sets the current note to the provided `stave`. This applies
// `y` values to the `NoteHeads`.
}, {
key: 'setStave',
value: function setStave(stave) {
get(Object.getPrototypeOf(StaveNote.prototype), 'setStave', this).call(this, stave);
var ys = this.note_heads.map(function (notehead) {
notehead.setStave(stave);
return notehead.getY();
});
this.setYs(ys);
if (this.hasStem()) {
var _getNoteHeadBounds = this.getNoteHeadBounds();
var y_top = _getNoteHeadBounds.y_top;
var y_bottom = _getNoteHeadBounds.y_bottom;
this.stem.setYBounds(y_top, y_bottom);
}
return this;
}
// Get the pitches in the note
}, {
key: 'getKeys',
value: function getKeys() {
return this.keys;
}
// Get the properties for all the keys in the note
}, {
key: 'getKeyProps',
value: function getKeyProps() {
return this.keyProps;
}
// Check if note is shifted to the right
}, {
key: 'isDisplaced',
value: function isDisplaced() {
return this.displaced;
}
// Sets whether shift note to the right. `displaced` is a `boolean`
}, {
key: 'setNoteDisplaced',
value: function setNoteDisplaced(displaced) {
this.displaced = displaced;
return this;
}
// Get the starting `x` coordinate for a `StaveTie`
}, {
key: 'getTieRightX',
value: function getTieRightX() {
var tieStartX = this.getAbsoluteX();
tieStartX += this.glyph.head_width + this.x_shift + this.extraRightPx;
if (this.modifierContext) tieStartX += this.modifierContext.getExtraRightPx();
return tieStartX;
}
// Get the ending `x` coordinate for a `StaveTie`
}, {
key: 'getTieLeftX',
value: function getTieLeftX() {
var tieEndX = this.getAbsoluteX();
tieEndX += this.x_shift - this.extraLeftPx;
return tieEndX;
}
// Get the stave line on which to place a rest
}, {
key: 'getLineForRest',
value: function getLineForRest() {
var restLine = this.keyProps[0].line;
if (this.keyProps.length > 1) {
var lastLine = this.keyProps[this.keyProps.length - 1].line;
var top = Math.max(restLine, lastLine);
var bot = Math.min(restLine, lastLine);
restLine = Vex.MidLine(top, bot);
}
return restLine;
}
// Get the default `x` and `y` coordinates for the provided `position`
// and key `index`
}, {
key: 'getModifierStartXY',
value: function getModifierStartXY(position, index) {
if (!this.preFormatted) {
throw new Vex.RERR('UnformattedNote', "Can't call GetModifierStartXY on an unformatted note");
}
if (this.ys.length === 0) {
throw new Vex.RERR('NoYValues', 'No Y-Values calculated for this note.');
}
var x = 0;
if (position === Modifier.Position.LEFT) {
// extra_left_px
x = -1 * 2;
} else if (position === Modifier.Position.RIGHT) {
// extra_right_px
x = this.glyph.head_width + this.x_shift + 2;
} else if (position === Modifier.Position.BELOW || position === Modifier.Position.ABOVE) {
x = this.glyph.head_width / 2;
}
return { x: this.getAbsoluteX() + x, y: this.ys[index] };
}
// Sets the style of the complete StaveNote, including all keys
// and the stem.
}, {
key: 'setStyle',
value: function setStyle(style) {
this.note_heads.forEach(function (notehead) {
notehead.setStyle(style);
}, this);
this.stem.setStyle(style);
}
// Sets the notehead at `index` to the provided coloring `style`.
//
// `style` is an `object` with the following properties: `shadowColor`,
// `shadowBlur`, `fillStyle`, `strokeStyle`
}, {
key: 'setKeyStyle',
value: function setKeyStyle(index, style) {
this.note_heads[index].setStyle(style);
return this;
}
}, {
key: 'setKeyLine',
value: function setKeyLine(index, line) {
this.keyProps[index].line = line;
this.note_heads[index].setLine(line);
return this;
}
}, {
key: 'getKeyLine',
value: function getKeyLine(index) {
return this.keyProps[index].line;
}
// Add self to modifier context. `mContext` is the `ModifierContext`
// to be added to.
}, {
key: 'addToModifierContext',
value: function addToModifierContext(mContext) {
this.setModifierContext(mContext);
for (var i = 0; i < this.modifiers.length; ++i) {
this.modifierContext.addModifier(this.modifiers[i]);
}
this.modifierContext.addModifier(this);
this.setPreFormatted(false);
return this;
}
// Generic function to add modifiers to a note
//
// Parameters:
// * `index`: The index of the key that we're modifying
// * `modifier`: The modifier to add
}, {
key: 'addModifier',
value: function addModifier(index, modifier) {
modifier.setNote(this);
modifier.setIndex(index);
this.modifiers.push(modifier);
this.setPreFormatted(false);
return this;
}
// Helper function to add an accidental to a key
}, {
key: 'addAccidental',
value: function addAccidental(index, accidental) {
return this.addModifier(index, accidental);
}
// Helper function to add an articulation to a key
}, {
key: 'addArticulation',
value: function addArticulation(index, articulation) {
return this.addModifier(index, articulation);
}
// Helper function to add an annotation to a key
}, {
key: 'addAnnotation',
value: function addAnnotation(index, annotation) {
return this.addModifier(index, annotation);
}
// Helper function to add a dot on a specific key
}, {
key: 'addDot',
value: function addDot(index) {
var dot = new Dot();
dot.setDotShiftY(this.glyph.dot_shiftY);
this.dots++;
return this.addModifier(index, dot);
}
// Convenience method to add dot to all keys in note
}, {
key: 'addDotToAll',
value: function addDotToAll() {
for (var i = 0; i < this.keys.length; ++i) {
this.addDot(i);
}
return this;
}
// Get all accidentals in the `ModifierContext`
}, {
key: 'getAccidentals',
value: function getAccidentals() {
return this.modifierContext.getModifiers('accidentals');
}
// Get all dots in the `ModifierContext`
}, {
key: 'getDots',
value: function getDots() {
return this.modifierContext.getModifiers('dots');
}
// Get the width of the note if it is displaced. Used for `Voice`
// formatting
}, {
key: 'getVoiceShiftWidth',
value: function getVoiceShiftWidth() {
// TODO: may need to accomodate for dot here.
return this.glyph.head_width * (this.displaced ? 2 : 1);
}
// Calculates and sets the extra pixels to the left or right
// if the note is displaced.
}, {
key: 'calcExtraPx',
value: function calcExtraPx() {
this.setExtraLeftPx(this.displaced && this.stem_direction === Stem.DOWN ? this.glyph.head_width : 0);
// For upstems with flags, the extra space is unnecessary, since it's taken
// up by the flag.
this.setExtraRightPx(!this.hasFlag() && this.displaced && this.stem_direction === Stem.UP ? this.glyph.head_width : 0);
}
// Pre-render formatting
}, {
key: 'preFormat',
value: function preFormat() {
if (this.preFormatted) return;
if (this.modifierContext) this.modifierContext.preFormat();
var width = this.glyph.head_width + this.extraLeftPx + this.extraRightPx;
// For upward flagged notes, the width of the flag needs to be added
if (this.glyph.flag && this.beam === null && this.stem_direction === Stem.UP) {
width += this.glyph.head_width;
}
this.setWidth(width);
this.setPreFormatted(true);
}
// Gets the staff line and y value for the highest and lowest noteheads
}, {
key: 'getNoteHeadBounds',
value: function getNoteHeadBounds() {
// Top and bottom Y values for stem.
var yTop = null;
var yBottom = null;
var highestLine = this.stave.getNumLines();
var lowestLine = 1;
this.note_heads.forEach(function (notehead) {
var line = notehead.getLine();
var y = notehead.getY();
if (yTop === null || y < yTop) {
yTop = y;
}
if (yBottom === null || y > yBottom) {
yBottom = y;
}
highestLine = line > highestLine ? line : highestLine;
lowestLine = line < lowestLine ? line : lowestLine;
}, this);
return {
y_top: yTop,
y_bottom: yBottom,
highest_line: highestLine,
lowest_line: lowestLine
};
}
// Get the starting `x` coordinate for the noteheads
}, {
key: 'getNoteHeadBeginX',
value: function getNoteHeadBeginX() {
return this.getAbsoluteX() + this.x_shift;
}
// Get the ending `x` coordinate for the noteheads
}, {
key: 'getNoteHeadEndX',
value: function getNoteHeadEndX() {
var xBegin = this.getNoteHeadBeginX();
return xBegin + this.glyph.head_width - Flow.STEM_WIDTH / 2;
}
// Draw the ledger lines between the stave and the highest/lowest keys
}, {
key: 'drawLedgerLines',
value: function drawLedgerLines() {
var _this2 = this;
var note_heads = this.note_heads;
var stave = this.stave;
var use_default_head_x = this.use_default_head_x;
var x_shift = this.x_shift;
var glyph = this.glyph;
var stroke_px = this.render_options.stroke_px;
var ctx = this.context;
if (this.isRest()) return;
if (!ctx) {
throw new Vex.RERR('NoCanvasContext', "Can't draw without a canvas context.");
}
var _getNoteHeadBounds2 = this.getNoteHeadBounds();
var highest_line = _getNoteHeadBounds2.highest_line;
var lowest_line = _getNoteHeadBounds2.lowest_line;
var headX = note_heads[0].getAbsoluteX();
var drawLedgerLine = function drawLedgerLine(y) {
if (use_default_head_x === true) {
headX = _this2.getAbsoluteX() + x_shift;
}
var x = headX - stroke_px;
var length = headX + glyph.head_width - headX + stroke_px * 2;
ctx.fillRect(x, y, length, 1);
};
for (var line = 6; line <= highest_line; ++line) {
drawLedgerLine(stave.getYForNote(line));
}
for (var _line = 0; _line >= lowest_line; --_line) {
drawLedgerLine(stave.getYForNote(_line));
}
}
// Draw all key modifiers
}, {
key: 'drawModifiers',
value: function drawModifiers() {
if (!this.context) {
throw new Vex.RERR('NoCanvasContext', "Can't draw without a canvas context.");
}
var ctx = this.context;
ctx.openGroup('modifiers');
for (var i = 0; i < this.modifiers.length; i++) {
var modifier = this.modifiers[i];
var notehead = this.note_heads[modifier.getIndex()];
var noteheadStyle = notehead.getStyle();
if (noteheadStyle) {
ctx.save();
notehead.applyStyle(ctx);
}
modifier.setContext(ctx);
modifier.draw();
if (noteheadStyle) {
ctx.restore();
}
}
ctx.closeGroup();
}
// Draw the flag for the note
}, {
key: 'drawFlag',
value: function drawFlag() {
var stem = this.stem;
var beam = this.beam;
var ctx = this.context;
var glyph_font_scale = this.render_options.glyph_font_scale;
if (!ctx) {
throw new Vex.RERR('NoCanvasContext', "Can't draw without a canvas context.");
}
var shouldRenderFlag = beam === null;
var glyph = this.getGlyph();
if (glyph.flag && shouldRenderFlag) {
var flagX = void 0;
var flagY = void 0;
var flagCode = void 0;
var xBegin = this.getNoteHeadBeginX();
var xEnd = this.getNoteHeadEndX();
var _getNoteHeadBounds3 = this.getNoteHeadBounds();
var y_top = _getNoteHeadBounds3.y_top;
var y_bottom = _getNoteHeadBounds3.y_bottom;
var noteStemHeight = stem.getHeight();
if (this.getStemDirection() === Stem.DOWN) {
// Down stems have flags on the left.
flagX = xBegin + 1;
flagY = y_top - noteStemHeight + 2;
flagCode = glyph.code_flag_downstem;
} else {
// Up stems have flags on the left.
flagX = xEnd + 1;
flagY = y_bottom - noteStemHeight - 2;
flagCode = glyph.code_flag_upstem;
}
// Draw the Flag
ctx.openGroup('flag', null, { pointerBBox: true });
Glyph.renderGlyph(ctx, flagX, flagY, glyph_font_scale, flagCode);
ctx.closeGroup();
}
}
// Draw the NoteHeads
}, {
key: 'drawNoteHeads',
value: function drawNoteHeads() {
var _this3 = this;
this.note_heads.forEach(function (notehead) {
_this3.context.openGroup('notehead', null, { pointerBBox: true });
notehead.setContext(_this3.context).draw();
_this3.context.closeGroup();
});
}
// Render the stem onto the canvas
}, {
key: 'drawStem',
value: function drawStem(stemStruct) {
if (!this.context) {
throw new Vex.RERR('NoCanvasContext', "Can't draw without a canvas context.");
}
if (stemStruct) {
this.setStem(new Stem(stemStruct));
}
this.context.openGroup('stem', null, { pointerBBox: true });
this.stem.setContext(this.context).draw();
this.context.closeGroup();
}
// Draws all the `StaveNote` parts. This is the main drawing method.
}, {
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoCanvasContext', "Can't draw without a canvas context.");
}
if (!this.stave) {
throw new Vex.RERR('NoStave', "Can't draw without a stave.");
}
if (this.ys.length === 0) {
throw new Vex.RERR('NoYValues', "Can't draw note without Y values.");
}
var xBegin = this.getNoteHeadBeginX();
var xEnd = this.getNoteHeadEndX();
var shouldRenderStem = this.hasStem() && !this.beam;
// Format note head x positions
this.note_heads.forEach(function (notehead) {
return notehead.setX(xBegin);
});
// Format stem x positions
this.stem.setNoteHeadXBounds(xBegin, xEnd);
L$2('Rendering ', this.isChord() ? 'chord :' : 'note :', this.keys);
// Draw each part of the note
this.drawLedgerLines();
this.elem = this.context.openGroup('stavenote', this.id);
this.context.openGroup('note', null, { pointerBBox: true });
if (shouldRenderStem) this.drawStem();
this.drawNoteHeads();
this.drawFlag();
this.context.closeGroup();
this.drawModifiers();
this.context.closeGroup();
}
}]);
return StaveNote;
}(StemmableNote);
/**
* @constructor
*/
var FretHandFinger = function (_Modifier) {
inherits(FretHandFinger, _Modifier);
createClass(FretHandFinger, null, [{
key: 'format',
// Arrange fingerings inside a ModifierContext.
value: function format(nums, state) {
var left_shift = state.left_shift;
var right_shift = state.right_shift;
var num_spacing = 1;
if (!nums || nums.length === 0) return false;
var nums_list = [];
var prev_note = null;
var shiftLeft = 0;
var shiftRight = 0;
for (var i = 0; i < nums.length; ++i) {
var num = nums[i];
var note = num.getNote();
var pos = num.getPosition();
var props = note.getKeyProps()[num.getIndex()];
if (note !== prev_note) {
for (var n = 0; n < note.keys.length; ++n) {
var props_tmp = note.getKeyProps()[n];
if (left_shift === 0) {
shiftLeft = props_tmp.displaced ? note.getExtraLeftPx() : shiftLeft;
}
if (right_shift === 0) {
shiftRight = props_tmp.displaced ? note.getExtraRightPx() : shiftRight;
}
}
prev_note = note;
}
nums_list.push({
note: note,
num: num,
pos: pos,
line: props.line,
shiftL: shiftLeft,
shiftR: shiftRight
});
}
// Sort fingernumbers by line number.
nums_list.sort(function (a, b) {
return b.line - a.line;
});
var numShiftL = 0;
var numShiftR = 0;
var xWidthL = 0;
var xWidthR = 0;
var lastLine = null;
var lastNote = null;
for (var _i = 0; _i < nums_list.length; ++_i) {
var num_shift = 0;
var _nums_list$_i = nums_list[_i];
var _note = _nums_list$_i.note;
var _pos = _nums_list$_i.pos;
var _num = _nums_list$_i.num;
var line = _nums_list$_i.line;
var shiftL = _nums_list$_i.shiftL;
var shiftR = _nums_list$_i.shiftR;
// Reset the position of the string number every line.
if (line !== lastLine || _note !== lastNote) {
numShiftL = left_shift + shiftL;
numShiftR = right_shift + shiftR;
}
var numWidth = _num.getWidth() + num_spacing;
if (_pos === Modifier.Position.LEFT) {
_num.setXShift(left_shift + numShiftL);
num_shift = left_shift + numWidth; // spacing
xWidthL = num_shift > xWidthL ? num_shift : xWidthL;
} else if (_pos === Modifier.Position.RIGHT) {
_num.setXShift(numShiftR);
num_shift = shiftRight + numWidth; // spacing
xWidthR = num_shift > xWidthR ? num_shift : xWidthR;
}
lastLine = line;
lastNote = _note;
}
state.left_shift += xWidthL;
state.right_shift += xWidthR;
return true;
}
}, {
key: 'CATEGORY',
get: function get() {
return 'frethandfinger';
}
}]);
function FretHandFinger(number) {
classCallCheck(this, FretHandFinger);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(FretHandFinger).call(this));
_this.note = null;
_this.index = null;
_this.finger = number;
_this.width = 7;
_this.position = Modifier.Position.LEFT; // Default position above stem or note head
_this.x_shift = 0;
_this.y_shift = 0;
_this.x_offset = 0; // Horizontal offset from default
_this.y_offset = 0; // Vertical offset from default
_this.font = {
family: 'sans-serif',
size: 9,
weight: 'bold'
};
return _this;
}
createClass(FretHandFinger, [{
key: 'getCategory',
value: function getCategory() {
return FretHandFinger.CATEGORY;
}
}, {
key: 'getNote',
value: function getNote() {
return this.note;
}
}, {
key: 'setNote',
value: function setNote(note) {
this.note = note;return this;
}
}, {
key: 'getIndex',
value: function getIndex() {
return this.index;
}
}, {
key: 'setIndex',
value: function setIndex(index) {
this.index = index;return this;
}
}, {
key: 'getPosition',
value: function getPosition() {
return this.position;
}
}, {
key: 'setPosition',
value: function setPosition(position) {
if (position >= Modifier.Position.LEFT && position <= Modifier.Position.BELOW) {
this.position = position;
}
return this;
}
}, {
key: 'setFretHandFinger',
value: function setFretHandFinger(number) {
this.finger = number;return this;
}
}, {
key: 'setOffsetX',
value: function setOffsetX(x) {
this.x_offset = x;return this;
}
}, {
key: 'setOffsetY',
value: function setOffsetY(y) {
this.y_offset = y;return this;
}
}, {
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoContext', "Can't draw string number without a context.");
}
if (!this.note || this.index == null) {
throw new Vex.RERR('NoAttachedNote', "Can't draw string number without a note and index.");
}
var ctx = this.context;
var start = this.note.getModifierStartXY(this.position, this.index);
var dot_x = start.x + this.x_shift + this.x_offset;
var dot_y = start.y + this.y_shift + this.y_offset + 5;
switch (this.position) {
case Modifier.Position.ABOVE:
dot_x -= 4;
dot_y -= 12;
break;
case Modifier.Position.BELOW:
dot_x -= 2;
dot_y += 10;
break;
case Modifier.Position.LEFT:
dot_x -= this.width;
break;
case Modifier.Position.RIGHT:
dot_x += 1;
break;
default:
throw new Vex.RERR('InvalidPostion', 'The position ' + this.position + ' does not exist');
}
ctx.save();
ctx.setFont(this.font.family, this.font.size, this.font.weight);
ctx.fillText('' + this.finger, dot_x, dot_y);
ctx.restore();
}
}]);
return FretHandFinger;
}(Modifier);
var Music = function () {
function Music() {
classCallCheck(this, Music);
}
createClass(Music, [{
key: 'isValidNoteValue',
value: function isValidNoteValue(note) {
if (note == null || note < 0 || note >= Music.NUM_TONES) {
return false;
}
return true;
}
}, {
key: 'isValidIntervalValue',
value: function isValidIntervalValue(interval) {
return this.isValidNoteValue(interval);
}
}, {
key: 'getNoteParts',
value: function getNoteParts(noteString) {
if (!noteString || noteString.length < 1) {
throw new Vex.RERR('BadArguments', 'Invalid note name: ' + noteString);
}
if (noteString.length > 3) {
throw new Vex.RERR('BadArguments', 'Invalid note name: ' + noteString);
}
var note = noteString.toLowerCase();
var regex = /^([cdefgab])(b|bb|n|#|##)?$/;
var match = regex.exec(note);
if (match != null) {
var root = match[1];
var accidental = match[2];
return {
root: root,
accidental: accidental
};
} else {
throw new Vex.RERR('BadArguments', 'Invalid note name: ' + noteString);
}
}
}, {
key: 'getKeyParts',
value: function getKeyParts(keyString) {
if (!keyString || keyString.length < 1) {
throw new Vex.RERR('BadArguments', 'Invalid key: ' + keyString);
}
var key = keyString.toLowerCase();
// Support Major, Minor, Melodic Minor, and Harmonic Minor key types.
var regex = /^([cdefgab])(b|#)?(mel|harm|m|M)?$/;
var match = regex.exec(key);
if (match != null) {
var root = match[1];
var accidental = match[2];
var type = match[3];
// Unspecified type implies major
if (!type) type = 'M';
return {
root: root,
accidental: accidental,
type: type
};
} else {
throw new Vex.RERR('BadArguments', 'Invalid key: ' + keyString);
}
}
}, {
key: 'getNoteValue',
value: function getNoteValue(noteString) {
var value = Music.noteValues[noteString];
if (value == null) {
throw new Vex.RERR('BadArguments', 'Invalid note name: ' + noteString);
}
return value.int_val;
}
}, {
key: 'getIntervalValue',
value: function getIntervalValue(intervalString) {
var value = Music.intervals[intervalString];
if (value == null) {
throw new Vex.RERR('BadArguments', 'Invalid interval name: ${intervalString}');
}
return value;
}
}, {
key: 'getCanonicalNoteName',
value: function getCanonicalNoteName(noteValue) {
if (!this.isValidNoteValue(noteValue)) {
throw new Vex.RERR('BadArguments', 'Invalid note value: ' + noteValue);
}
return Music.canonical_notes[noteValue];
}
}, {
key: 'getCanonicalIntervalName',
value: function getCanonicalIntervalName(intervalValue) {
if (!this.isValidIntervalValue(intervalValue)) {
throw new Vex.RERR('BadArguments', 'Invalid interval value: ' + intervalValue);
}
return Music.diatonic_intervals[intervalValue];
}
/* Given a note, interval, and interval direction, product the
* relative note.
*/
}, {
key: 'getRelativeNoteValue',
value: function getRelativeNoteValue(noteValue, intervalValue, direction) {
if (direction == null) direction = 1;
if (direction !== 1 && direction !== -1) {
throw new Vex.RERR('BadArguments', 'Invalid direction: ' + direction);
}
var sum = (noteValue + direction * intervalValue) % Music.NUM_TONES;
if (sum < 0) sum += Music.NUM_TONES;
return sum;
}
}, {
key: 'getRelativeNoteName',
value: function getRelativeNoteName(root, noteValue) {
var parts = this.getNoteParts(root);
var rootValue = this.getNoteValue(parts.root);
var interval = noteValue - rootValue;
if (Math.abs(interval) > Music.NUM_TONES - 3) {
var multiplier = 1;
if (interval > 0) multiplier = -1;
// Possibly wrap around. (Add +1 for modulo operator)
var reverse_interval = (noteValue + 1 + (rootValue + 1)) % Music.NUM_TONES * multiplier;
if (Math.abs(reverse_interval) > 2) {
throw new Vex.RERR('BadArguments', 'Notes not related: ' + root + ', ' + noteValue + ')');
} else {
interval = reverse_interval;
}
}
if (Math.abs(interval) > 2) {
throw new Vex.RERR('BadArguments', 'Notes not related: ' + root + ', ' + noteValue + ')');
}
var relativeNoteName = parts.root;
if (interval > 0) {
for (var i = 1; i <= interval; ++i) {
relativeNoteName += '#';
}
} else if (interval < 0) {
for (var _i = -1; _i >= interval; --_i) {
relativeNoteName += 'b';
}
}
return relativeNoteName;
}
/* Return scale tones, given intervals. Each successive interval is
* relative to the previous one, e.g., Major Scale:
*
* TTSTTTS = [2,2,1,2,2,2,1]
*
* When used with key = 0, returns C scale (which is isomorphic to
* interval list).
*/
}, {
key: 'getScaleTones',
value: function getScaleTones(key, intervals) {
var tones = [key];
var nextNote = key;
for (var i = 0; i < intervals.length; i += 1) {
nextNote = this.getRelativeNoteValue(nextNote, intervals[i]);
if (nextNote !== key) tones.push(nextNote);
}
return tones;
}
/* Returns the interval of a note, given a diatonic scale.
*
* E.g., Given the scale C, and the note E, returns M3
*/
}, {
key: 'getIntervalBetween',
value: function getIntervalBetween(note1, note2, direction) {
if (direction == null) direction = 1;
if (direction !== 1 && direction !== -1) {
throw new Vex.RERR('BadArguments', 'Invalid direction: ' + direction);
}
if (!this.isValidNoteValue(note1) || !this.isValidNoteValue(note2)) {
throw new Vex.RERR('BadArguments', 'Invalid notes: ' + note1 + ', ' + note2);
}
var difference = direction === 1 ? note2 - note1 : note1 - note2;
if (difference < 0) difference += Music.NUM_TONES;
return difference;
}
// Create a scale map that represents the pitch state for a
// `keySignature`. For example, passing a `G` to `keySignature` would
// return a scale map with every note naturalized except for `F` which
// has an `F#` state.
}, {
key: 'createScaleMap',
value: function createScaleMap(keySignature) {
var keySigParts = this.getKeyParts(keySignature);
var scaleName = Music.scaleTypes[keySigParts.type];
var keySigString = keySigParts.root;
if (keySigParts.accidental) keySigString += keySigParts.accidental;
if (!scaleName) throw new Vex.RERR('BadArguments', 'Unsupported key type: ' + keySignature);
var scale = this.getScaleTones(this.getNoteValue(keySigString), scaleName);
var noteLocation = Music.root_indices[keySigParts.root];
var scaleMap = {};
for (var i = 0; i < Music.roots.length; ++i) {
var index = (noteLocation + i) % Music.roots.length;
var rootName = Music.roots[index];
var noteName = this.getRelativeNoteName(rootName, scale[i]);
if (noteName.length === 1) {
noteName += 'n';
}
scaleMap[rootName] = noteName;
}
return scaleMap;
}
}], [{
key: 'NUM_TONES',
get: function get() {
return 12;
}
}, {
key: 'roots',
get: function get() {
return ['c', 'd', 'e', 'f', 'g', 'a', 'b'];
}
}, {
key: 'root_values',
get: function get() {
return [0, 2, 4, 5, 7, 9, 11];
}
}, {
key: 'root_indices',
get: function get() {
return {
'c': 0,
'd': 1,
'e': 2,
'f': 3,
'g': 4,
'a': 5,
'b': 6
};
}
}, {
key: 'canonical_notes',
get: function get() {
return ['c', 'c#', 'd', 'd#', 'e', 'f', 'f#', 'g', 'g#', 'a', 'a#', 'b'];
}
}, {
key: 'diatonic_intervals',
get: function get() {
return ['unison', 'm2', 'M2', 'm3', 'M3', 'p4', 'dim5', 'p5', 'm6', 'M6', 'b7', 'M7', 'octave'];
}
}, {
key: 'diatonic_accidentals',
get: function get() {
return {
'unison': { note: 0, accidental: 0 },
'm2': { note: 1, accidental: -1 },
'M2': { note: 1, accidental: 0 },
'm3': { note: 2, accidental: -1 },
'M3': { note: 2, accidental: 0 },
'p4': { note: 3, accidental: 0 },
'dim5': { note: 4, accidental: -1 },
'p5': { note: 4, accidental: 0 },
'm6': { note: 5, accidental: -1 },
'M6': { note: 5, accidental: 0 },
'b7': { note: 6, accidental: -1 },
'M7': { note: 6, accidental: 0 },
'octave': { note: 7, accidental: 0 }
};
}
}, {
key: 'intervals',
get: function get() {
return {
'u': 0, 'unison': 0,
'm2': 1, 'b2': 1, 'min2': 1, 'S': 1, 'H': 1,
'2': 2, 'M2': 2, 'maj2': 2, 'T': 2, 'W': 2,
'm3': 3, 'b3': 3, 'min3': 3,
'M3': 4, '3': 4, 'maj3': 4,
'4': 5, 'p4': 5,
'#4': 6, 'b5': 6, 'aug4': 6, 'dim5': 6,
'5': 7, 'p5': 7,
'#5': 8, 'b6': 8, 'aug5': 8,
'6': 9, 'M6': 9, 'maj6': 9,
'b7': 10, 'm7': 10, 'min7': 10, 'dom7': 10,
'M7': 11, 'maj7': 11,
'8': 12, 'octave': 12
};
}
}, {
key: 'scales',
get: function get() {
return {
major: [2, 2, 1, 2, 2, 2, 1],
dorian: [2, 1, 2, 2, 2, 1, 2],
mixolydian: [2, 2, 1, 2, 2, 1, 2],
minor: [2, 1, 2, 2, 1, 2, 2]
};
}
}, {
key: 'scaleTypes',
get: function get() {
return {
'M': Music.scales.major,
'm': Music.scales.minor
};
}
}, {
key: 'accidentals',
get: function get() {
return ['bb', 'b', 'n', '#', '##'];
}
}, {
key: 'noteValues',
get: function get() {
return {
'c': { root_index: 0, int_val: 0 },
'cn': { root_index: 0, int_val: 0 },
'c#': { root_index: 0, int_val: 1 },
'c##': { root_index: 0, int_val: 2 },
'cb': { root_index: 0, int_val: 11 },
'cbb': { root_index: 0, int_val: 10 },
'd': { root_index: 1, int_val: 2 },
'dn': { root_index: 1, int_val: 2 },
'd#': { root_index: 1, int_val: 3 },
'd##': { root_index: 1, int_val: 4 },
'db': { root_index: 1, int_val: 1 },
'dbb': { root_index: 1, int_val: 0 },
'e': { root_index: 2, int_val: 4 },
'en': { root_index: 2, int_val: 4 },
'e#': { root_index: 2, int_val: 5 },
'e##': { root_index: 2, int_val: 6 },
'eb': { root_index: 2, int_val: 3 },
'ebb': { root_index: 2, int_val: 2 },
'f': { root_index: 3, int_val: 5 },
'fn': { root_index: 3, int_val: 5 },
'f#': { root_index: 3, int_val: 6 },
'f##': { root_index: 3, int_val: 7 },
'fb': { root_index: 3, int_val: 4 },
'fbb': { root_index: 3, int_val: 3 },
'g': { root_index: 4, int_val: 7 },
'gn': { root_index: 4, int_val: 7 },
'g#': { root_index: 4, int_val: 8 },
'g##': { root_index: 4, int_val: 9 },
'gb': { root_index: 4, int_val: 6 },
'gbb': { root_index: 4, int_val: 5 },
'a': { root_index: 5, int_val: 9 },
'an': { root_index: 5, int_val: 9 },
'a#': { root_index: 5, int_val: 10 },
'a##': { root_index: 5, int_val: 11 },
'ab': { root_index: 5, int_val: 8 },
'abb': { root_index: 5, int_val: 7 },
'b': { root_index: 6, int_val: 11 },
'bn': { root_index: 6, int_val: 11 },
'b#': { root_index: 6, int_val: 0 },
'b##': { root_index: 6, int_val: 1 },
'bb': { root_index: 6, int_val: 10 },
'bbb': { root_index: 6, int_val: 9 }
};
}
}]);
return Music;
}();
// To enable logging for this class. Set `Vex.Flow.Accidental.DEBUG` to `true`.
function L$7() {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
if (Accidental.DEBUG) Vex.L('Vex.Flow.Accidental', args);
}
// An `Accidental` inherits from `Modifier`, and is formatted within a
// `ModifierContext`.
var Accidental = function (_Modifier) {
inherits(Accidental, _Modifier);
createClass(Accidental, null, [{
key: 'format',
// Arrange accidentals inside a ModifierContext.
value: function format(accidentals, state) {
var _this2 = this;
var leftShift = state.left_shift;
var accidentalSpacing = 2;
// If there are no accidentals, we needn't format their positions
if (!accidentals || accidentals.length === 0) return;
var accList = [];
var prevNote = null;
var shiftL = 0;
// First determine the accidentals' Y positions from the note.keys
var propsTemp = void 0;
for (var i = 0; i < accidentals.length; ++i) {
var acc = accidentals[i];
var note = acc.getNote();
var stave = note.getStave();
var props = note.getKeyProps()[acc.getIndex()];
if (note !== prevNote) {
// Iterate through all notes to get the displaced pixels
for (var n = 0; n < note.keys.length; ++n) {
propsTemp = note.getKeyProps()[n];
shiftL = propsTemp.displaced ? note.getExtraLeftPx() : shiftL;
}
prevNote = note;
}
if (stave !== null) {
var lineSpace = stave.options.spacing_between_lines_px;
var y = stave.getYForLine(props.line);
var accLine = Math.round(y / lineSpace * 2) / 2;
accList.push({ y: y, line: accLine, shift: shiftL, acc: acc, lineSpace: lineSpace });
} else {
accList.push({ line: props.line, shift: shiftL, acc: acc });
}
}
// Sort accidentals by line number.
accList.sort(function (a, b) {
return b.line - a.line;
});
// FIXME: Confusing name. Each object in this array has a property called `line`.
// So if this is a list of lines, you end up with: `line.line` which is very awkward.
var lineList = [];
// amount by which all accidentals must be shifted right or left for
// stem flipping, notehead shifting concerns.
var accShift = 0;
var previousLine = null;
// Create an array of unique line numbers (lineList) from accList
for (var _i = 0; _i < accList.length; _i++) {
var _acc = accList[_i];
// if this is the first line, or a new line, add a lineList
if (previousLine === null || previousLine !== _acc.line) {
lineList.push({
line: _acc.line,
flatLine: true,
dblSharpLine: true,
numAcc: 0,
width: 0
});
}
// if this accidental is not a flat, the accidental needs 3.0 lines lower
// clearance instead of 2.5 lines for b or bb.
// FIXME: Naming could use work. acc.acc is very awkward
if (_acc.acc.type !== 'b' && _acc.acc.type !== 'bb') {
lineList[lineList.length - 1].flatLine = false;
}
// if this accidental is not a double sharp, the accidental needs 3.0 lines above
if (_acc.acc.type !== '##') {
lineList[lineList.length - 1].dblSharpLine = false;
}
// Track how many accidentals are on this line:
lineList[lineList.length - 1].numAcc++;
// Track the total x_offset needed for this line which will be needed
// for formatting lines w/ multiple accidentals:
// width = accidental width + universal spacing between accidentals
lineList[lineList.length - 1].width += _acc.acc.getWidth() + accidentalSpacing;
// if this accShift is larger, use it to keep first column accidentals in the same line
accShift = _acc.shift > accShift ? _acc.shift : accShift;
previousLine = _acc.line;
}
// ### Place Accidentals in Columns
//
// Default to a classic triangular layout (middle accidental farthest left),
// but follow exceptions as outlined in G. Read's _Music Notation_ and
// Elaine Gould's _Behind Bars_.
//
// Additionally, this implements different vertical collision rules for
// flats (only need 2.5 lines clearance below) and double sharps (only
// need 2.5 lines of clearance above or below).
//
// Classic layouts and exception patterns are found in the 'tables.js'
// in 'Vex.Flow.accidentalColumnsTable'
//
// Beyond 6 vertical accidentals, default to the parallel ascending lines approach,
// using as few columns as possible for the verticle structure.
//
// TODO (?): Allow column to be specified for an accidental at run-time?
var totalColumns = 0;
// establish the boundaries for a group of notes with clashing accidentals:
var _loop = function _loop(_i3) {
var noFurtherConflicts = false;
var groupStart = _i3;
var groupEnd = _i3;
while (groupEnd + 1 < lineList.length && !noFurtherConflicts) {
// if this note conflicts with the next:
if (_this2.checkCollision(lineList[groupEnd], lineList[groupEnd + 1])) {
// include the next note in the group:
groupEnd++;
} else {
noFurtherConflicts = true;
}
}
// Gets an a line from the `lineList`, relative to the current group
var getGroupLine = function getGroupLine(index) {
return lineList[groupStart + index];
};
var getGroupLines = function getGroupLines(indexes) {
return indexes.map(getGroupLine);
};
var lineDifference = function lineDifference(indexA, indexB) {
var _getGroupLines$map = getGroupLines([indexA, indexB]).map(function (item) {
return item.line;
});
var _getGroupLines$map2 = slicedToArray(_getGroupLines$map, 2);
var a = _getGroupLines$map2[0];
var b = _getGroupLines$map2[1];
return a - b;
};
var notColliding = function notColliding() {
for (var _len2 = arguments.length, indexPairs = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
indexPairs[_key2] = arguments[_key2];
}
return indexPairs.map(getGroupLines).every(function (lines) {
return !_this2.checkCollision.apply(_this2, toConsumableArray(lines));
});
};
// Set columns for the lines in this group:
var groupLength = groupEnd - groupStart + 1;
// Set the accidental column for each line of the group
var endCase = _this2.checkCollision(lineList[groupStart], lineList[groupEnd]) ? 'a' : 'b';
switch (groupLength) {
case 3:
if (endCase === 'a' && lineDifference(1, 2) === 0.5 && lineDifference(0, 1) !== 0.5) {
endCase = 'second_on_bottom';
}
break;
case 4:
if (notColliding([0, 2], [1, 3])) {
endCase = 'spaced_out_tetrachord';
}
break;
case 5:
if (endCase === 'b' && notColliding([1, 3])) {
endCase = 'spaced_out_pentachord';
if (notColliding([0, 2], [2, 4])) {
endCase = 'very_spaced_out_pentachord';
}
}
break;
case 6:
if (notColliding([0, 3], [1, 4], [2, 5])) {
endCase = 'spaced_out_hexachord';
}
if (notColliding([0, 2], [2, 4], [1, 3], [3, 5])) {
endCase = 'very_spaced_out_hexachord';
}
break;
default:
break;
}
var groupMember = void 0;
var column = void 0;
// If the group contains more than seven members, use ascending parallel lines
// of accidentals, using as few columns as possible while avoiding collisions.
if (groupLength >= 7) {
// First, determine how many columns to use:
var patternLength = 2;
var collisionDetected = true;
while (collisionDetected === true) {
collisionDetected = false;
for (var line = 0; line + patternLength < lineList.length; line++) {
if (_this2.checkCollision(lineList[line], lineList[line + patternLength])) {
collisionDetected = true;
patternLength++;
break;
}
}
}
// Then, assign a column to each line of accidentals
for (groupMember = _i3; groupMember <= groupEnd; groupMember++) {
column = (groupMember - _i3) % patternLength + 1;
lineList[groupMember].column = column;
totalColumns = totalColumns > column ? totalColumns : column;
}
// Otherwise, if the group contains fewer than seven members, use the layouts from
// the accidentalsColumnsTable housed in tables.js.
} else {
for (groupMember = _i3; groupMember <= groupEnd; groupMember++) {
column = Flow.accidentalColumnsTable[groupLength][endCase][groupMember - _i3];
lineList[groupMember].column = column;
totalColumns = totalColumns > column ? totalColumns : column;
}
}
// Increment i to the last note that was set, so that if a lower set of notes
// does not conflict at all with this group, it can have its own classic shape.
_i3 = groupEnd;
_i2 = _i3;
};
for (var _i2 = 0; _i2 < lineList.length; _i2++) {
_loop(_i2);
}
// ### Convert Columns to x_offsets
//
// This keeps columns aligned, even if they have different accidentals within them
// which sometimes results in a larger x_offset than is an accidental might need
// to preserve the symmetry of the accidental shape.
//
// Neither A.C. Vinci nor G. Read address this, and it typically only happens in
// music with complex chord clusters.
//
// TODO (?): Optionally allow closer compression of accidentals, instead of forcing
// parallel columns.
// track each column's max width, which will be used as initial shift of later columns:
var columnWidths = [];
var columnXOffsets = [];
for (var _i4 = 0; _i4 <= totalColumns; _i4++) {
columnWidths[_i4] = 0;
columnXOffsets[_i4] = 0;
}
columnWidths[0] = accShift + leftShift;
columnXOffsets[0] = accShift + leftShift;
// Fill columnWidths with widest needed x-space;
// this is what keeps the columns parallel.
lineList.forEach(function (line) {
if (line.width > columnWidths[line.column]) columnWidths[line.column] = line.width;
});
for (var _i5 = 1; _i5 < columnWidths.length; _i5++) {
// this column's offset = this column's width + previous column's offset
columnXOffsets[_i5] = columnWidths[_i5] + columnXOffsets[_i5 - 1];
}
var totalShift = columnXOffsets[columnXOffsets.length - 1];
// Set the xShift for each accidental according to column offsets:
var accCount = 0;
lineList.forEach(function (line) {
var lineWidth = 0;
var lastAccOnLine = accCount + line.numAcc;
// handle all of the accidentals on a given line:
for (accCount; accCount < lastAccOnLine; accCount++) {
var xShift = columnXOffsets[line.column - 1] + lineWidth;
accList[accCount].acc.setXShift(xShift);
// keep track of the width of accidentals we've added so far, so that when
// we loop, we add space for them.
lineWidth += accList[accCount].acc.getWidth() + accidentalSpacing;
L$7('Line, accCount, shift: ', line.line, accCount, xShift);
}
});
// update the overall layout with the full width of the accidental shapes:
state.left_shift += totalShift;
}
// Helper function to determine whether two lines of accidentals collide vertically
}, {
key: 'checkCollision',
value: function checkCollision(line1, line2) {
var clearance = line2.line - line1.line;
var clearanceRequired = 3;
// But less clearance is required for certain accidentals: b, bb and ##.
if (clearance > 0) {
// then line 2 is on top
clearanceRequired = line2.flatLine || line2.dblSharpLine ? 2.5 : 3.0;
if (line1.dblSharpLine) clearance -= 0.5;
} else {
// line 1 is on top
clearanceRequired = line1.flatLine || line1.dblSharpLine ? 2.5 : 3.0;
if (line2.dblSharpLine) clearance -= 0.5;
}
var collision = Math.abs(clearance) < clearanceRequired;
L$7('Line_1, Line_2, Collision: ', line1.line, line2.line, collision);
return collision;
}
// Use this method to automatically apply accidentals to a set of `voices`.
// The accidentals will be remembered between all the voices provided.
// Optionally, you can also provide an initial `keySignature`.
}, {
key: 'applyAccidentals',
value: function applyAccidentals(voices, keySignature) {
var tickPositions = [];
var tickNoteMap = {};
// Sort the tickables in each voice by their tick position in the voice
voices.forEach(function (voice) {
var tickPosition = new Fraction(0, 1);
var notes = voice.getTickables();
notes.forEach(function (note) {
var notesAtPosition = tickNoteMap[tickPosition.value()];
if (!notesAtPosition) {
tickPositions.push(tickPosition.value());
tickNoteMap[tickPosition.value()] = [note];
} else {
notesAtPosition.push(note);
}
tickPosition.add(note.getTicks());
});
});
var music = new Music();
// Default key signature is C major
if (!keySignature) keySignature = 'C';
// Get the scale map, which represents the current state of each pitch
var scaleMap = music.createScaleMap(keySignature);
tickPositions.forEach(function (tick) {
var notes = tickNoteMap[tick];
// Array to store all pitches that modified accidental states
// at this tick position
var modifiedPitches = [];
notes.forEach(function (note) {
if (note.isRest()) return;
// Go through each key and determine if an accidental should be
// applied
note.keys.forEach(function (keyString, keyIndex) {
var key = music.getNoteParts(keyString.split('/')[0]);
// Force a natural for every key without an accidental
var accidentalString = key.accidental || 'n';
var pitch = key.root + accidentalString;
// Determine if the current pitch has the same accidental
// as the scale state
var sameAccidental = scaleMap[key.root] === pitch;
// Determine if an identical pitch in the chord already
// modified the accidental state
var previouslyModified = modifiedPitches.indexOf(pitch) > -1;
// Add the accidental to the StaveNote
if (!sameAccidental || sameAccidental && previouslyModified) {
// Modify the scale map so that the root pitch has an
// updated state
scaleMap[key.root] = pitch;
// Create the accidental
var accidental = new Accidental(accidentalString);
// Attach the accidental to the StaveNote
note.addAccidental(keyIndex, accidental);
// Add the pitch to list of pitches that modified accidentals
modifiedPitches.push(pitch);
}
});
});
});
}
// Create accidental. `type` can be a value from the
// `Vex.Flow.accidentalCodes.accidentals` table in `tables.js`. For
// example: `#`, `##`, `b`, `n`, etc.
}, {
key: 'CATEGORY',
get: function get() {
return 'accidentals';
}
}]);
function Accidental() {
var type = arguments.length <= 0 || arguments[0] === undefined ? null : arguments[0];
classCallCheck(this, Accidental);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(Accidental).call(this));
L$7('New accidental: ', type);
_this.note = null;
// The `index` points to a specific note in a chord.
_this.index = null;
_this.type = type;
_this.position = Modifier.Position.LEFT;
_this.render_options = {
// Font size for glyphs
font_scale: 38,
// Length of stroke across heads above or below the stave.
stroke_px: 3
};
_this.accidental = Flow.accidentalCodes(_this.type);
if (!_this.accidental) {
throw new Vex.RERR('ArgumentError', 'Unknown accidental type: ' + type);
}
// Cautionary accidentals have parentheses around them
_this.cautionary = false;
_this.parenLeft = null;
_this.parenRight = null;
// Initial width is set from table.
_this.setWidth(_this.accidental.width);
return _this;
}
createClass(Accidental, [{
key: 'getCategory',
value: function getCategory() {
return Accidental.CATEGORY;
}
// Attach this accidental to `note`, which must be a `StaveNote`.
}, {
key: 'setNote',
value: function setNote(note) {
if (!note) {
throw new Vex.RERR('ArgumentError', 'Bad note value: ' + note);
}
this.note = note;
// Accidentals attached to grace notes are rendered smaller.
if (this.note.getCategory() === 'gracenotes') {
this.render_options.font_scale = 25;
this.setWidth(this.accidental.gracenote_width);
}
}
// If called, draws parenthesis around accidental.
}, {
key: 'setAsCautionary',
value: function setAsCautionary() {
this.cautionary = true;
this.render_options.font_scale = 28;
this.parenLeft = Flow.accidentalCodes('{');
this.parenRight = Flow.accidentalCodes('}');
var widthAdjust = this.type === '##' || this.type === 'bb' ? 6 : 4;
// Make sure `width` accomodates for parentheses.
this.setWidth(this.parenLeft.width + this.accidental.width + this.parenRight.width - widthAdjust);
return this;
}
// Render accidental onto canvas.
}, {
key: 'draw',
value: function draw() {
var context = this.context;
var type = this.type;
var position = this.position;
var note = this.note;
var index = this.index;
var cautionary = this.cautionary;
var x_shift = this.x_shift;
var y_shift = this.y_shift;
var width = this.width;
var accidental = this.accidental;
var parenLeft = this.parenLeft;
var parenRight = this.parenRight;
var font_scale = this.render_options.font_scale;
if (!context) {
throw new Vex.RERR('NoContext', "Can't draw accidental without a context.");
}
if (!(note && index != null)) {
throw new Vex.RERR('NoAttachedNote', "Can't draw accidental without a note and index.");
}
// Figure out the start `x` and `y` coordinates for note and index.
var start = note.getModifierStartXY(position, index);
var accX = start.x + x_shift - width;
var accY = start.y + y_shift;
L$7('Rendering: ', type, accX, accY);
var renderGlyphToContext = Glyph.renderGlyph.bind(null, context);
if (!cautionary) {
// Render the accidental alone.
renderGlyphToContext(accX, accY, font_scale, accidental.code);
} else {
// Render the accidental in parentheses.
accX += 3;
renderGlyphToContext(accX, accY, font_scale, parenLeft.code);
accX += 2;
renderGlyphToContext(accX, accY, font_scale, accidental.code);
accX += accidental.width - 2;
if (type === '##' || type === 'bb') accX -= 2;
renderGlyphToContext(accX, accY, font_scale, parenRight.code);
}
}
}]);
return Accidental;
}(Modifier);
var StaveTie = function () {
function StaveTie(notes, text) {
classCallCheck(this, StaveTie);
/**
* Notes is a struct that has:
*
* {
* first_note: Note,
* last_note: Note,
* first_indices: [n1, n2, n3],
* last_indices: [n1, n2, n3]
* }
*
**/
this.notes = notes;
this.context = null;
this.text = text;
this.direction = null;
this.render_options = {
cp1: 8, // Curve control point 1
cp2: 12, // Curve control point 2
text_shift_x: 0,
first_x_shift: 0,
last_x_shift: 0,
y_shift: 7,
tie_spacing: 0,
font: { family: 'Arial', size: 10, style: '' }
};
this.font = this.render_options.font;
this.setNotes(notes);
}
createClass(StaveTie, [{
key: 'setContext',
value: function setContext(context) {
this.context = context;return this;
}
}, {
key: 'setFont',
value: function setFont(font) {
this.font = font;return this;
}
}, {
key: 'setDirection',
value: function setDirection(direction) {
this.direction = direction;return this;
}
/**
* Set the notes to attach this tie to.
*
* @param {!Object} notes The notes to tie up.
*/
}, {
key: 'setNotes',
value: function setNotes(notes) {
if (!notes.first_note && !notes.last_note) {
throw new Vex.RuntimeError('BadArguments', 'Tie needs to have either first_note or last_note set.');
}
if (!notes.first_indices) notes.first_indices = [0];
if (!notes.last_indices) notes.last_indices = [0];
if (notes.first_indices.length !== notes.last_indices.length) {
throw new Vex.RuntimeError('BadArguments', 'Tied notes must have similar index sizes');
}
// Success. Lets grab 'em notes.
this.first_note = notes.first_note;
this.first_indices = notes.first_indices;
this.last_note = notes.last_note;
this.last_indices = notes.last_indices;
return this;
}
/**
* @return {boolean} Returns true if this is a partial bar.
*/
}, {
key: 'isPartial',
value: function isPartial() {
return !this.first_note || !this.last_note;
}
}, {
key: 'renderTie',
value: function renderTie(params) {
if (params.first_ys.length === 0 || params.last_ys.length === 0) {
throw new Vex.RERR('BadArguments', 'No Y-values to render');
}
var ctx = this.context;
var cp1 = this.render_options.cp1;
var cp2 = this.render_options.cp2;
if (Math.abs(params.last_x_px - params.first_x_px) < 10) {
cp1 = 2;cp2 = 8;
}
var first_x_shift = this.render_options.first_x_shift;
var last_x_shift = this.render_options.last_x_shift;
var y_shift = this.render_options.y_shift * params.direction;
for (var i = 0; i < this.first_indices.length; ++i) {
var cp_x = (params.last_x_px + last_x_shift + (params.first_x_px + first_x_shift)) / 2;
var first_y_px = params.first_ys[this.first_indices[i]] + y_shift;
var last_y_px = params.last_ys[this.last_indices[i]] + y_shift;
if (isNaN(first_y_px) || isNaN(last_y_px)) {
throw new Vex.RERR('BadArguments', 'Bad indices for tie rendering.');
}
var top_cp_y = (first_y_px + last_y_px) / 2 + cp1 * params.direction;
var bottom_cp_y = (first_y_px + last_y_px) / 2 + cp2 * params.direction;
ctx.beginPath();
ctx.moveTo(params.first_x_px + first_x_shift, first_y_px);
ctx.quadraticCurveTo(cp_x, top_cp_y, params.last_x_px + last_x_shift, last_y_px);
ctx.quadraticCurveTo(cp_x, bottom_cp_y, params.first_x_px + first_x_shift, first_y_px);
ctx.closePath();
ctx.fill();
}
}
}, {
key: 'renderText',
value: function renderText(first_x_px, last_x_px) {
if (!this.text) return;
var center_x = (first_x_px + last_x_px) / 2;
center_x -= this.context.measureText(this.text).width / 2;
this.context.save();
this.context.setFont(this.font.family, this.font.size, this.font.style);
this.context.fillText(this.text, center_x + this.render_options.text_shift_x, (this.first_note || this.last_note).getStave().getYForTopText() - 1);
this.context.restore();
}
}, {
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoContext', 'No context to render tie.');
}
var first_note = this.first_note;
var last_note = this.last_note;
var first_x_px = void 0;
var last_x_px = void 0;
var first_ys = void 0;
var last_ys = void 0;
var stem_direction = void 0;
if (first_note) {
first_x_px = first_note.getTieRightX() + this.render_options.tie_spacing;
stem_direction = first_note.getStemDirection();
first_ys = first_note.getYs();
} else {
first_x_px = last_note.getStave().getTieStartX();
first_ys = last_note.getYs();
this.first_indices = this.last_indices;
}
if (last_note) {
last_x_px = last_note.getTieLeftX() + this.render_options.tie_spacing;
stem_direction = last_note.getStemDirection();
last_ys = last_note.getYs();
} else {
last_x_px = first_note.getStave().getTieEndX();
last_ys = first_note.getYs();
this.last_indices = this.first_indices;
}
if (this.direction) {
stem_direction = this.direction;
}
this.renderTie({
first_x_px: first_x_px,
last_x_px: last_x_px,
first_ys: first_ys,
last_ys: last_ys,
direction: stem_direction
});
this.renderText(first_x_px, last_x_px);
return true;
}
}]);
return StaveTie;
}();
// To enable logging for this class. Set `Vex.Flow.GraceNoteGroup.DEBUG` to `true`.
function L$8() {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
if (GraceNoteGroup.DEBUG) Vex.L('Vex.Flow.GraceNoteGroup', args);
}
var GraceNoteGroup = function (_Modifier) {
inherits(GraceNoteGroup, _Modifier);
createClass(GraceNoteGroup, null, [{
key: 'format',
// Arrange groups inside a `ModifierContext`
value: function format(gracenote_groups, state) {
var gracenote_spacing = 4;
if (!gracenote_groups || gracenote_groups.length === 0) return false;
var group_list = [];
var prev_note = null;
var shiftL = 0;
for (var i = 0; i < gracenote_groups.length; ++i) {
var gracenote_group = gracenote_groups[i];
var note = gracenote_group.getNote();
var stave = note.getStave();
if (note !== prev_note) {
// Iterate through all notes to get the displaced pixels
for (var n = 0; n < note.keys.length; ++n) {
var props_tmp = note.getKeyProps()[n];
shiftL = props_tmp.displaced ? note.getExtraLeftPx() : shiftL;
}
prev_note = note;
}
if (stave != null) {
group_list.push({ shift: shiftL, gracenote_group: gracenote_group });
} else {
group_list.push({ shift: shiftL, gracenote_group: gracenote_group });
}
}
// If first note left shift in case it is displaced
var group_shift = group_list[0].shift;
var formatWidth = void 0;
for (var _i = 0; _i < group_list.length; ++_i) {
var _gracenote_group = group_list[_i].gracenote_group;
_gracenote_group.preFormat();
formatWidth = _gracenote_group.getWidth() + gracenote_spacing;
group_shift = Math.max(formatWidth, group_shift);
}
for (var _i2 = 0; _i2 < group_list.length; ++_i2) {
var _gracenote_group2 = group_list[_i2].gracenote_group;
formatWidth = _gracenote_group2.getWidth() + gracenote_spacing;
_gracenote_group2.setSpacingFromNextModifier(group_shift - Math.min(formatWidth, group_shift));
}
state.left_shift += group_shift;
return true;
}
// ## Prototype Methods
//
// `GraceNoteGroup` inherits from `Modifier` and is placed inside a
// `ModifierContext`.
}, {
key: 'CATEGORY',
get: function get() {
return 'gracenotegroups';
}
}]);
function GraceNoteGroup(grace_notes, show_slur) {
var _ret;
classCallCheck(this, GraceNoteGroup);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(GraceNoteGroup).call(this));
_this.note = null;
_this.index = null;
_this.position = Modifier.Position.LEFT;
_this.grace_notes = grace_notes;
_this.width = 0;
_this.preFormatted = false;
_this.show_slur = show_slur;
_this.slur = null;
_this.formatter = new Formatter();
_this.voice = new Voice({
num_beats: 4,
beat_value: 4,
resolution: Flow.RESOLUTION
}).setStrict(false);
_this.voice.addTickables(_this.grace_notes);
return _ret = _this, possibleConstructorReturn(_this, _ret);
}
createClass(GraceNoteGroup, [{
key: 'getCategory',
value: function getCategory() {
return GraceNoteGroup.CATEGORY;
}
}, {
key: 'preFormat',
value: function preFormat() {
if (this.preFormatted) return;
this.formatter.joinVoices([this.voice]).format([this.voice], 0);
this.setWidth(this.formatter.getMinTotalWidth());
this.preFormatted = true;
}
}, {
key: 'beamNotes',
value: function beamNotes() {
if (this.grace_notes.length > 1) {
var beam = new Beam(this.grace_notes);
beam.render_options.beam_width = 3;
beam.render_options.partial_beam_length = 4;
this.beam = beam;
}
return this;
}
}, {
key: 'setNote',
value: function setNote(note) {
this.note = note;
}
}, {
key: 'setWidth',
value: function setWidth(width) {
this.width = width;
}
}, {
key: 'getWidth',
value: function getWidth() {
return this.width;
}
}, {
key: 'draw',
value: function draw() {
var _this2 = this;
if (!this.context) {
throw new Vex.RuntimeError('NoContext', "Can't draw Grace note without a context.");
}
var note = this.getNote();
L$8('Drawing grace note group for:', note);
if (!(note && this.index !== null)) {
throw new Vex.RuntimeError('NoAttachedNote', "Can't draw grace note without a parent note and parent note index.");
}
var that = this;
function alignGraceNotesWithNote(grace_notes, note) {
// Shift over the tick contexts of each note
// So that th aligned with the note
var tickContext = note.getTickContext();
var extraPx = tickContext.getExtraPx();
var x = tickContext.getX() - extraPx.left - extraPx.extraLeft + that.getSpacingFromNextModifier();
grace_notes.forEach(function (graceNote) {
var tick_context = graceNote.getTickContext();
var x_offset = tick_context.getX();
graceNote.setStave(note.stave);
tick_context.setX(x + x_offset);
});
}
alignGraceNotesWithNote(this.grace_notes, note, this.width);
// Draw notes
this.grace_notes.forEach(function (graceNote) {
graceNote.setContext(_this2.context).draw();
});
// Draw beam
if (this.beam) {
this.beam.setContext(this.context).draw();
}
if (this.show_slur) {
// Create and draw slur
this.slur = new StaveTie({
last_note: this.grace_notes[0],
first_note: note,
first_indices: [0],
last_indices: [0]
});
this.slur.render_options.cp2 = 12;
this.slur.setContext(this.context).draw();
}
}
}]);
return GraceNoteGroup;
}(Modifier);
var Stroke = function (_Modifier) {
inherits(Stroke, _Modifier);
createClass(Stroke, null, [{
key: 'format',
// Arrange strokes inside `ModifierContext`
value: function format(strokes, state) {
var left_shift = state.left_shift;
var stroke_spacing = 0;
if (!strokes || strokes.length === 0) return this;
var strokeList = strokes.map(function (stroke) {
var note = stroke.getNote();
if (note instanceof StaveNote) {
var _note$getKeyProps$str = note.getKeyProps()[stroke.getIndex()];
var line = _note$getKeyProps$str.line;
var displaced = _note$getKeyProps$str.displaced;
var shift = displaced ? note.getExtraLeftPx() : 0;
return { line: line, shift: shift, stroke: stroke };
} else {
var string = note.getPositions()[stroke.getIndex()].str;
return { line: string, shift: 0, stroke: stroke };
}
});
var strokeShift = left_shift;
// There can only be one stroke .. if more than one, they overlay each other
var xShift = strokeList.reduce(function (xShift, _ref) {
var stroke = _ref.stroke;
var shift = _ref.shift;
stroke.setXShift(strokeShift + shift);
return Math.max(stroke.getWidth() + stroke_spacing, xShift);
}, 0);
state.left_shift += xShift;
return true;
}
}, {
key: 'CATEGORY',
get: function get() {
return 'strokes';
}
}, {
key: 'Type',
get: function get() {
return {
BRUSH_DOWN: 1,
BRUSH_UP: 2,
ROLL_DOWN: 3, // Arpegiated chord
ROLL_UP: 4, // Arpegiated chord
RASQUEDO_DOWN: 5,
RASQUEDO_UP: 6
};
}
}]);
function Stroke(type, options) {
classCallCheck(this, Stroke);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(Stroke).call(this));
_this.note = null;
_this.options = Vex.Merge({}, options);
// multi voice - span stroke across all voices if true
_this.all_voices = 'all_voices' in _this.options ? _this.options.all_voices : true;
// multi voice - end note of stroke, set in draw()
_this.note_end = null;
_this.index = null;
_this.type = type;
_this.position = Modifier.Position.LEFT;
_this.render_options = {
font_scale: 38,
stroke_px: 3,
stroke_spacing: 10
};
_this.font = {
family: 'serif',
size: 10,
weight: 'bold italic'
};
_this.setXShift(0);
_this.setWidth(10);
return _this;
}
createClass(Stroke, [{
key: 'getCategory',
value: function getCategory() {
return Stroke.CATEGORY;
}
}, {
key: 'getPosition',
value: function getPosition() {
return this.position;
}
}, {
key: 'addEndNote',
value: function addEndNote(note) {
this.note_end = note;return this;
}
}, {
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoContext', "Can't draw stroke without a context.");
}
if (!(this.note && this.index != null)) {
throw new Vex.RERR('NoAttachedNote', "Can't draw stroke without a note and index.");
}
var start = this.note.getModifierStartXY(this.position, this.index);
var ys = this.note.getYs();
var topY = start.y;
var botY = start.y;
var x = start.x - 5;
var line_space = this.note.stave.options.spacing_between_lines_px;
var notes = this.getModifierContext().getModifiers(this.note.getCategory());
for (var i = 0; i < notes.length; i++) {
ys = notes[i].getYs();
for (var n = 0; n < ys.length; n++) {
if (this.note === notes[i] || this.all_voices) {
topY = Vex.Min(topY, ys[n]);
botY = Vex.Max(botY, ys[n]);
}
}
}
var arrow = void 0;
var arrow_shift_x = void 0;
var arrow_y = void 0;
var text_shift_x = void 0;
var text_y = void 0;
switch (this.type) {
case Stroke.Type.BRUSH_DOWN:
arrow = 'vc3';
arrow_shift_x = -3;
arrow_y = topY - line_space / 2 + 10;
botY += line_space / 2;
break;
case Stroke.Type.BRUSH_UP:
arrow = 'v11';
arrow_shift_x = 0.5;
arrow_y = botY + line_space / 2;
topY -= line_space / 2;
break;
case Stroke.Type.ROLL_DOWN:
case Stroke.Type.RASQUEDO_DOWN:
arrow = 'vc3';
arrow_shift_x = -3;
text_shift_x = this.x_shift + arrow_shift_x - 2;
if (this.note instanceof StaveNote) {
topY += 1.5 * line_space;
if ((botY - topY) % 2 !== 0) {
botY += 0.5 * line_space;
} else {
botY += line_space;
}
arrow_y = topY - line_space;
text_y = botY + line_space + 2;
} else {
topY += 1.5 * line_space;
botY += line_space;
arrow_y = topY - 0.75 * line_space;
text_y = botY + 0.25 * line_space;
}
break;
case Stroke.Type.ROLL_UP:
case Stroke.Type.RASQUEDO_UP:
arrow = 'v52';
arrow_shift_x = -4;
text_shift_x = this.x_shift + arrow_shift_x - 1;
if (this.note instanceof StaveNote) {
arrow_y = line_space / 2;
topY += 0.5 * line_space;
if ((botY - topY) % 2 === 0) {
botY += line_space / 2;
}
arrow_y = botY + 0.5 * line_space;
text_y = topY - 1.25 * line_space;
} else {
topY += 0.25 * line_space;
botY += 0.5 * line_space;
arrow_y = botY + 0.25 * line_space;
text_y = topY - line_space;
}
break;
default:
throw new Vex.RERR('InvalidType', 'The stroke type ' + this.type + ' does not exist');
}
// Draw the stroke
if (this.type === Stroke.Type.BRUSH_DOWN || this.type === Stroke.Type.BRUSH_UP) {
this.context.fillRect(x + this.x_shift, topY, 1, botY - topY);
} else {
if (this.note instanceof StaveNote) {
for (var _i = topY; _i <= botY; _i += line_space) {
Glyph.renderGlyph(this.context, x + this.x_shift - 4, _i, this.render_options.font_scale, 'va3');
}
} else {
var _i2 = void 0;
for (_i2 = topY; _i2 <= botY; _i2 += 10) {
Glyph.renderGlyph(this.context, x + this.x_shift - 4, _i2, this.render_options.font_scale, 'va3');
}
if (this.type === Stroke.Type.RASQUEDO_DOWN) {
text_y = _i2 + 0.25 * line_space;
}
}
}
// Draw the arrow head
Glyph.renderGlyph(this.context, x + this.x_shift + arrow_shift_x, arrow_y, this.render_options.font_scale, arrow);
// Draw the rasquedo "R"
if (this.type === Stroke.Type.RASQUEDO_DOWN || this.type === Stroke.Type.RASQUEDO_UP) {
this.context.save();
this.context.setFont(this.font.family, this.font.size, this.font.weight);
this.context.fillText('R', x + text_shift_x, text_y);
this.context.restore();
}
}
}]);
return Stroke;
}(Modifier);
var StringNumber = function (_Modifier) {
inherits(StringNumber, _Modifier);
createClass(StringNumber, null, [{
key: 'format',
// ## Static Methods
// Arrange string numbers inside a `ModifierContext`
value: function format(nums, state) {
var left_shift = state.left_shift;
var right_shift = state.right_shift;
var num_spacing = 1;
if (!nums || nums.length === 0) return this;
var nums_list = [];
var prev_note = null;
var shift_left = 0;
var shift_right = 0;
var i = void 0;
var num = void 0;
var note = void 0;
var pos = void 0;
var props_tmp = void 0;
for (i = 0; i < nums.length; ++i) {
num = nums[i];
note = num.getNote();
for (i = 0; i < nums.length; ++i) {
num = nums[i];
note = num.getNote();
pos = num.getPosition();
var props = note.getKeyProps()[num.getIndex()];
if (note !== prev_note) {
for (var n = 0; n < note.keys.length; ++n) {
props_tmp = note.getKeyProps()[n];
if (left_shift === 0) {
shift_left = props_tmp.displaced ? note.getExtraLeftPx() : shift_left;
}
if (right_shift === 0) {
shift_right = props_tmp.displaced ? note.getExtraRightPx() : shift_right;
}
}
prev_note = note;
}
nums_list.push({
pos: pos,
note: note,
num: num,
line: props.line,
shiftL: shift_left,
shiftR: shift_right
});
}
}
// Sort string numbers by line number.
nums_list.sort(function (a, b) {
return b.line - a.line;
});
// TODO: This variable never gets assigned to anything. Is that a bug or can this be removed?
var num_shiftL = 0; // eslint-disable-line
var num_shiftR = 0;
var x_widthL = 0;
var x_widthR = 0;
var last_line = null;
var last_note = null;
for (i = 0; i < nums_list.length; ++i) {
var num_shift = 0;
note = nums_list[i].note;
pos = nums_list[i].pos;
num = nums_list[i].num;
var line = nums_list[i].line;
var shiftL = nums_list[i].shiftL;
var shiftR = nums_list[i].shiftR;
// Reset the position of the string number every line.
if (line !== last_line || note !== last_note) {
num_shiftL = left_shift + shiftL;
num_shiftR = right_shift + shiftR;
}
var num_width = num.getWidth() + num_spacing;
if (pos === Modifier.Position.LEFT) {
num.setXShift(left_shift);
num_shift = shift_left + num_width; // spacing
x_widthL = num_shift > x_widthL ? num_shift : x_widthL;
} else if (pos === Modifier.Position.RIGHT) {
num.setXShift(num_shiftR);
num_shift += num_width; // spacing
x_widthR = num_shift > x_widthR ? num_shift : x_widthR;
}
last_line = line;
last_note = note;
}
state.left_shift += x_widthL;
state.right_shift += x_widthR;
return true;
}
}, {
key: 'CATEGORY',
get: function get() {
return 'stringnumber';
}
}]);
function StringNumber(number) {
classCallCheck(this, StringNumber);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(StringNumber).call(this));
_this.note = null;
_this.last_note = null;
_this.index = null;
_this.string_number = number;
_this.setWidth(20); // ???
_this.position = Modifier.Position.ABOVE; // Default position above stem or note head
_this.x_shift = 0;
_this.y_shift = 0;
_this.x_offset = 0; // Horizontal offset from default
_this.y_offset = 0; // Vertical offset from default
_this.dashed = true; // true - draw dashed extension false - no extension
_this.leg = Renderer.LineEndType.NONE; // draw upward/downward leg at the of extension line
_this.radius = 8;
_this.font = {
family: 'sans-serif',
size: 10,
weight: 'bold'
};
return _this;
}
createClass(StringNumber, [{
key: 'getCategory',
value: function getCategory() {
return StringNumber.CATEGORY;
}
}, {
key: 'getNote',
value: function getNote() {
return this.note;
}
}, {
key: 'setNote',
value: function setNote(note) {
this.note = note;return this;
}
}, {
key: 'getIndex',
value: function getIndex() {
return this.index;
}
}, {
key: 'setIndex',
value: function setIndex(index) {
this.index = index;return this;
}
}, {
key: 'setLineEndType',
value: function setLineEndType(leg) {
if (leg >= Renderer.LineEndType.NONE && leg <= Renderer.LineEndType.DOWN) {
this.leg = leg;
}
return this;
}
}, {
key: 'getPosition',
value: function getPosition() {
return this.position;
}
}, {
key: 'setPosition',
value: function setPosition(position) {
if (position >= Modifier.Position.LEFT && position <= Modifier.Position.BELOW) {
this.position = position;
}
return this;
}
}, {
key: 'setStringNumber',
value: function setStringNumber(number) {
this.string_number = number;return this;
}
}, {
key: 'setOffsetX',
value: function setOffsetX(x) {
this.x_offset = x;return this;
}
}, {
key: 'setOffsetY',
value: function setOffsetY(y) {
this.y_offset = y;return this;
}
}, {
key: 'setLastNote',
value: function setLastNote(note) {
this.last_note = note;return this;
}
}, {
key: 'setDashed',
value: function setDashed(dashed) {
this.dashed = dashed;return this;
}
}, {
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoContext', "Can't draw string number without a context.");
}
if (!(this.note && this.index != null)) {
throw new Vex.RERR('NoAttachedNote', "Can't draw string number without a note and index.");
}
var ctx = this.context;
var line_space = this.note.stave.options.spacing_between_lines_px;
var start = this.note.getModifierStartXY(this.position, this.index);
var dot_x = start.x + this.x_shift + this.x_offset;
var dot_y = start.y + this.y_shift + this.y_offset;
switch (this.position) {
case Modifier.Position.ABOVE:
case Modifier.Position.BELOW:
{
var stem_ext = this.note.getStemExtents();
var top = stem_ext.topY;
var bottom = stem_ext.baseY + 2;
if (this.note.stem_direction === StaveNote.STEM_DOWN) {
top = stem_ext.baseY;
bottom = stem_ext.topY - 2;
}
if (this.position === Modifier.Position.ABOVE) {
dot_y = this.note.hasStem() ? top - line_space * 1.75 : start.y - line_space * 1.75;
} else {
dot_y = this.note.hasStem() ? bottom + line_space * 1.5 : start.y + line_space * 1.75;
}
dot_y += this.y_shift + this.y_offset;
break;
}case Modifier.Position.LEFT:
dot_x -= this.radius / 2 + 5;
break;
case Modifier.Position.RIGHT:
dot_x += this.radius / 2 + 6;
break;
default:
throw new Vex.RERR('InvalidPosition', 'The position ' + this.position + ' is invalid');
}
ctx.save();
ctx.beginPath();
ctx.arc(dot_x, dot_y, this.radius, 0, Math.PI * 2, false);
ctx.lineWidth = 1.5;
ctx.stroke();
ctx.setFont(this.font.family, this.font.size, this.font.weight);
var x = dot_x - ctx.measureText(this.string_number).width / 2;
ctx.fillText('' + this.string_number, x, dot_y + 4.5);
if (this.last_note != null) {
var end = this.last_note.getStemX() - this.note.getX() + 5;
ctx.strokeStyle = '#000000';
ctx.lineCap = 'round';
ctx.lineWidth = 0.6;
if (this.dashed) {
Renderer.drawDashedLine(ctx, dot_x + 10, dot_y, dot_x + end, dot_y, [3, 3]);
} else {
Renderer.drawDashedLine(ctx, dot_x + 10, dot_y, dot_x + end, dot_y, [3, 0]);
}
var len = void 0;
var pattern = void 0;
switch (this.leg) {
case Renderer.LineEndType.UP:
len = -10;
pattern = this.dashed ? [3, 3] : [3, 0];
Renderer.drawDashedLine(ctx, dot_x + end, dot_y, dot_x + end, dot_y + len, pattern);
break;
case Renderer.LineEndType.DOWN:
len = 10;
pattern = this.dashed ? [3, 3] : [3, 0];
Renderer.drawDashedLine(ctx, dot_x + end, dot_y, dot_x + end, dot_y + len, pattern);
break;
default:
break;
}
}
ctx.restore();
}
}]);
return StringNumber;
}(Modifier);
// To enable logging for this class. Set `Vex.Flow.Articulation.DEBUG` to `true`.
function L$9() {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
if (Articulation.DEBUG) Vex.L('Vex.Flow.Articulation', args);
}
var Articulation = function (_Modifier) {
inherits(Articulation, _Modifier);
createClass(Articulation, null, [{
key: 'format',
value: function format(articulations, state) {
if (!articulations || articulations.length === 0) return false;
var width = 0;
for (var i = 0; i < articulations.length; ++i) {
var increment = 1;
var articulation = articulations[i];
width = Math.max(articulation.getWidth(), width);
var type = Flow.articulationCodes(articulation.type);
if (!type.between_lines) increment += 1.5;
if (articulation.getPosition() === Modifier.Position.ABOVE) {
articulation.setTextLine(state.top_text_line);
state.top_text_line += increment;
} else {
articulation.setTextLine(state.text_line);
state.text_line += increment;
}
}
state.left_shift += width / 2;
state.right_shift += width / 2;
return true;
}
// Create a new articulation of type `type`, which is an entry in
// `Vex.Flow.articulationCodes` in `tables.js`.
}, {
key: 'CATEGORY',
get: function get() {
return 'articulations';
}
}]);
function Articulation(type) {
classCallCheck(this, Articulation);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(Articulation).call(this));
_this.note = null;
_this.index = null;
_this.type = type;
_this.position = Modifier.Position.BELOW;
_this.render_options = {
font_scale: 38
};
_this.articulation = Flow.articulationCodes(_this.type);
if (!_this.articulation) {
throw new Vex.RERR('ArgumentError', "Articulation not found: '" + _this.type + "'");
}
// Default width comes from articulation table.
_this.setWidth(_this.articulation.width);
return _this;
}
createClass(Articulation, [{
key: 'getCategory',
value: function getCategory() {
return Articulation.CATEGORY;
}
// Render articulation in position next to note.
}, {
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoContext', "Can't draw Articulation without a context.");
}
if (!(this.note && this.index !== null)) {
throw new Vex.RERR('NoAttachedNote', "Can't draw Articulation without a note and index.");
}
var stem_direction = this.note.getStemDirection();
var stave = this.note.getStave();
var is_on_head = this.position === Modifier.Position.ABOVE && stem_direction === StaveNote.STEM_DOWN || this.position === Modifier.Position.BELOW && stem_direction === StaveNote.STEM_UP;
var needsLineAdjustment = function needsLineAdjustment(articulation, note_line, line_spacing) {
var offset_direction = articulation.position === Modifier.Position.ABOVE ? 1 : -1;
var duration = articulation.getNote().getDuration();
if (!is_on_head && Flow.durationToNumber(duration) <= 1) {
// Add stem length, unless it's on a whole note.
note_line += offset_direction * 3.5;
}
var articulation_line = note_line + offset_direction * line_spacing;
if (articulation_line >= 1 && articulation_line <= 5 && articulation_line % 1 === 0) {
return true;
}
return false;
};
// Articulations are centered over/under the note head.
var start = this.note.getModifierStartXY(this.position, this.index);
var glyph_y = start.y;
var shiftY = 0;
var line_spacing = 1;
var spacing = stave.getSpacingBetweenLines();
var is_tabnote = this.note.getCategory() === 'tabnotes';
var stem_ext = this.note.getStem().getExtents();
var top = stem_ext.topY;
var bottom = stem_ext.baseY;
if (stem_direction === StaveNote.STEM_DOWN) {
top = stem_ext.baseY;
bottom = stem_ext.topY;
}
// TabNotes don't have stems attached to them. Tab stems are rendered
// outside the stave.
if (is_tabnote) {
if (this.note.hasStem()) {
if (stem_direction === StaveNote.STEM_UP) {
bottom = stave.getYForBottomText(this.text_line - 2);
} else if (stem_direction === StaveNote.STEM_DOWN) {
top = stave.getYForTopText(this.text_line - 1.5);
}
} else {
// Without a stem
top = stave.getYForTopText(this.text_line - 1);
bottom = stave.getYForBottomText(this.text_line - 2);
}
}
var is_above = this.position === Modifier.Position.ABOVE;
var note_line = this.note.getLineNumber(is_above);
// Beamed stems are longer than quarter note stems.
if (!is_on_head && this.note.beam) line_spacing += 0.5;
// If articulation will overlap a line, reposition it.
if (needsLineAdjustment(this, note_line, line_spacing)) line_spacing += 0.5;
var glyph_y_between_lines = void 0;
if (this.position === Modifier.Position.ABOVE) {
shiftY = this.articulation.shift_up;
glyph_y_between_lines = top - 7 - spacing * (this.text_line + line_spacing);
if (this.articulation.between_lines) {
glyph_y = glyph_y_between_lines;
} else {
glyph_y = Math.min(stave.getYForTopText(this.text_line) - 3, glyph_y_between_lines);
}
} else {
shiftY = this.articulation.shift_down - 10;
glyph_y_between_lines = bottom + 10 + spacing * (this.text_line + line_spacing);
if (this.articulation.between_lines) {
glyph_y = glyph_y_between_lines;
} else {
glyph_y = Math.max(stave.getYForBottomText(this.text_line), glyph_y_between_lines);
}
}
var glyph_x = start.x + this.articulation.shift_right;
glyph_y += shiftY + this.y_shift;
L$9('Rendering articulation: ', this.articulation, glyph_x, glyph_y);
Glyph.renderGlyph(this.context, glyph_x, glyph_y, this.render_options.font_scale, this.articulation.code);
}
}]);
return Articulation;
}(Modifier);
var TickContext = function () {
createClass(TickContext, null, [{
key: 'getNextContext',
value: function getNextContext(tContext) {
var contexts = tContext.tContexts;
var index = contexts.indexOf(tContext);
return contexts[index + 1];
}
}]);
function TickContext() {
classCallCheck(this, TickContext);
this.currentTick = new Fraction(0, 1);
this.maxTicks = new Fraction(0, 1);
this.minTicks = null;
this.width = 0;
this.padding = 3; // padding on each side (width += padding * 2)
this.pixelsUsed = 0;
this.x = 0;
this.tickables = []; // Notes, tabs, chords, lyrics.
this.notePx = 0; // width of widest note in this context
this.extraLeftPx = 0; // Extra left pixels for modifers & displace notes
this.extraRightPx = 0; // Extra right pixels for modifers & displace notes
this.align_center = false;
this.tContexts = []; // Parent array of tick contexts
// Ignore this tick context for formatting and justification
this.ignore_ticks = true;
this.preFormatted = false;
this.postFormatted = false;
this.context = null; // Rendering context
}
createClass(TickContext, [{
key: 'setContext',
value: function setContext(context) {
this.context = context;return this;
}
}, {
key: 'getContext',
value: function getContext() {
return this.context;
}
}, {
key: 'shouldIgnoreTicks',
value: function shouldIgnoreTicks() {
return this.ignore_ticks;
}
}, {
key: 'getWidth',
value: function getWidth() {
return this.width + this.padding * 2;
}
}, {
key: 'getX',
value: function getX() {
return this.x;
}
}, {
key: 'setX',
value: function setX(x) {
this.x = x;return this;
}
}, {
key: 'getPixelsUsed',
value: function getPixelsUsed() {
return this.pixelsUsed;
}
}, {
key: 'setPixelsUsed',
value: function setPixelsUsed(pixelsUsed) {
this.pixelsUsed = pixelsUsed;return this;
}
}, {
key: 'setPadding',
value: function setPadding(padding) {
this.padding = padding;return this;
}
}, {
key: 'getMaxTicks',
value: function getMaxTicks() {
return this.maxTicks;
}
}, {
key: 'getMinTicks',
value: function getMinTicks() {
return this.minTicks;
}
}, {
key: 'getTickables',
value: function getTickables() {
return this.tickables;
}
}, {
key: 'getCenterAlignedTickables',
value: function getCenterAlignedTickables() {
return this.tickables.filter(function (tickable) {
return tickable.isCenterAligned();
});
}
// Get widths context, note and left/right modifiers for formatting
}, {
key: 'getMetrics',
value: function getMetrics() {
return { width: this.width, notePx: this.notePx,
extraLeftPx: this.extraLeftPx, extraRightPx: this.extraRightPx };
}
}, {
key: 'getCurrentTick',
value: function getCurrentTick() {
return this.currentTick;
}
}, {
key: 'setCurrentTick',
value: function setCurrentTick(tick) {
this.currentTick = tick;
this.preFormatted = false;
}
// Get left & right pixels used for modifiers
}, {
key: 'getExtraPx',
value: function getExtraPx() {
var left_shift = 0;
var right_shift = 0;
var extraLeftPx = 0;
var extraRightPx = 0;
for (var i = 0; i < this.tickables.length; i++) {
extraLeftPx = Math.max(this.tickables[i].extraLeftPx, extraLeftPx);
extraRightPx = Math.max(this.tickables[i].extraRightPx, extraRightPx);
var mContext = this.tickables[i].modifierContext;
if (mContext && mContext != null) {
left_shift = Math.max(left_shift, mContext.state.left_shift);
right_shift = Math.max(right_shift, mContext.state.right_shift);
}
}
return {
left: left_shift,
right: right_shift,
extraLeft: extraLeftPx,
extraRight: extraRightPx
};
}
}, {
key: 'addTickable',
value: function addTickable(tickable) {
if (!tickable) {
throw new Vex.RERR('BadArgument', 'Invalid tickable added.');
}
if (!tickable.shouldIgnoreTicks()) {
this.ignore_ticks = false;
var ticks = tickable.getTicks();
if (ticks.greaterThan(this.maxTicks)) {
this.maxTicks = ticks.clone();
}
if (this.minTicks == null) {
this.minTicks = ticks.clone();
} else if (ticks.lessThan(this.minTicks)) {
this.minTicks = ticks.clone();
}
}
tickable.setTickContext(this);
this.tickables.push(tickable);
this.preFormatted = false;
return this;
}
}, {
key: 'preFormat',
value: function preFormat() {
if (this.preFormatted) return this;
for (var i = 0; i < this.tickables.length; ++i) {
var tickable = this.tickables[i];
tickable.preFormat();
var metrics = tickable.getMetrics();
// Maintain max extra pixels from all tickables in the context
this.extraLeftPx = Math.max(this.extraLeftPx, metrics.extraLeftPx + metrics.modLeftPx);
this.extraRightPx = Math.max(this.extraRightPx, metrics.extraRightPx + metrics.modRightPx);
// Maintain the widest note for all tickables in the context
this.notePx = Math.max(this.notePx, metrics.noteWidth);
// Recalculate the tick context total width
this.width = this.notePx + this.extraLeftPx + this.extraRightPx;
}
return this;
}
}, {
key: 'postFormat',
value: function postFormat() {
if (this.postFormatted) return this;
this.postFormatted = true;
return this;
}
}]);
return TickContext;
}();
// To enable logging for this class. Set `Vex.Flow.Ornament.DEBUG` to `true`.
function L$10() {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
if (Ornament.DEBUG) Vex.L('Vex.Flow.Ornament', args);
}
// Accidental position modifications for each glyph
var acc_mods = {
'n': {
shift_x: 1,
shift_y_upper: 0,
shift_y_lower: 0,
height: 17
},
'#': {
shift_x: 0,
shift_y_upper: -2,
shift_y_lower: -2,
height: 20
},
'b': {
shift_x: 1,
shift_y_upper: 0,
shift_y_lower: 3,
height: 18
},
'##': {
shift_x: 0,
shift_y_upper: 0,
shift_y_lower: 0,
height: 12
},
'bb': {
shift_x: 0,
shift_y_upper: 0,
shift_y_lower: 4,
height: 17
},
'db': {
shift_x: -3,
shift_y_upper: 0,
shift_y_lower: 4,
height: 17
},
'bbs': {
shift_x: 0,
shift_y_upper: 0,
shift_y_lower: 4,
height: 17
},
'd': {
shift_x: 0,
shift_y_upper: 0,
shift_y_lower: 0,
height: 17
},
'++': {
shift_x: -2,
shift_y_upper: -6,
shift_y_lower: -3,
height: 22
},
'+': {
shift_x: 1,
shift_y_upper: -4,
shift_y_lower: -2,
height: 20
},
'bs': {
shift_x: 0,
shift_y_upper: 0,
shift_y_lower: 4,
height: 17
},
'bss': {
shift_x: 0,
shift_y_upper: 0,
shift_y_lower: 4,
height: 17
},
'++-': {
shift_x: -2,
shift_y_upper: -6,
shift_y_lower: -3,
height: 22
},
'+-': {
shift_x: 1,
shift_y_upper: -4,
shift_y_lower: -2,
height: 20
}
};
var Ornament = function (_Modifier) {
inherits(Ornament, _Modifier);
createClass(Ornament, null, [{
key: 'format',
// ## Static Methods
// Arrange ornaments inside `ModifierContext`
value: function format(ornaments, state) {
if (!ornaments || ornaments.length === 0) return false;
var width = 0;
for (var i = 0; i < ornaments.length; ++i) {
var ornament = ornaments[i];
var increment = 1;
width = Math.max(ornament.getWidth(), width);
var type = Flow.ornamentCodes(ornament.type);
if (!type.between_lines) increment += 1.5;
if (ornament.getPosition() === Modifier.Position.ABOVE) {
ornament.setTextLine(state.top_text_line);
state.top_text_line += increment;
} else {
ornament.setTextLine(state.text_line);
state.text_line += increment;
}
}
state.left_shift += width / 2;
state.right_shift += width / 2;
return true;
}
// Create a new ornament of type `type`, which is an entry in
// `Vex.Flow.ornamentCodes` in `tables.js`.
}, {
key: 'CATEGORY',
get: function get() {
return 'ornaments';
}
}]);
function Ornament(type) {
classCallCheck(this, Ornament);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(Ornament).call(this));
_this.note = null;
_this.index = null;
_this.type = type;
_this.position = Modifier.Position.ABOVE;
_this.delayed = false;
_this.accidental_upper = '';
_this.accidental_lower = '';
_this.render_options = {
font_scale: 38
};
_this.ornament = Flow.ornamentCodes(_this.type);
if (!_this.ornament) {
throw new Vex.RERR('ArgumentError', 'Ornament not found: \'' + _this.type + '\'');
}
// Default width comes from ornament table.
_this.setWidth(_this.ornament.width);
return _this;
}
createClass(Ornament, [{
key: 'getCategory',
value: function getCategory() {
return Ornament.CATEGORY;
}
// Set whether the ornament is to be delayed
}, {
key: 'setDelayed',
value: function setDelayed(delayed) {
this.delayed = delayed;return this;
}
// Set the upper accidental for the ornament
}, {
key: 'setUpperAccidental',
value: function setUpperAccidental(acc) {
this.accidental_upper = acc;
return this;
}
// Set the lower accidental for the ornament
}, {
key: 'setLowerAccidental',
value: function setLowerAccidental(acc) {
this.accidental_lower = acc;
return this;
}
// Render ornament in position next to note.
}, {
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoContext', "Can't draw Ornament without a context.");
}
if (!this.note || this.index == null) {
throw new Vex.RERR('NoAttachedNote', "Can't draw Ornament without a note and index.");
}
var ctx = this.context;
var stem_direction = this.note.getStemDirection();
var stave = this.note.getStave();
// Get stem extents
var stem_ext = this.note.getStem().getExtents();
var top = void 0;
if (stem_direction === StaveNote.STEM_DOWN) {
top = stem_ext.baseY;
} else {
top = stem_ext.topY;
}
// TabNotes don't have stems attached to them. Tab stems are rendered
// outside the stave.
var is_tabnote = this.note.getCategory() === 'tabnotes';
if (is_tabnote) {
if (this.note.hasStem()) {
if (stem_direction === StaveNote.STEM_DOWN) {
top = stave.getYForTopText(this.text_line - 1.5);
}
} else {
// Without a stem
top = stave.getYForTopText(this.text_line - 1);
}
}
var is_on_head = stem_direction === StaveNote.STEM_DOWN;
var spacing = stave.getSpacingBetweenLines();
var line_spacing = 1;
// Beamed stems are longer than quarter note stems, adjust accordingly
if (!is_on_head && this.note.beam) {
line_spacing += 0.5;
}
var total_spacing = spacing * (this.text_line + line_spacing);
var glyph_y_between_lines = top - 7 - total_spacing;
// Get initial coordinates for the modifier position
var start = this.note.getModifierStartXY(this.position, this.index);
var glyph_x = start.x + this.ornament.shift_right;
var glyph_y = Math.min(stave.getYForTopText(this.text_line) - 3, glyph_y_between_lines);
glyph_y += this.ornament.shift_up + this.y_shift;
// Ajdust x position if ornament is delayed
if (this.delayed) {
glyph_x += this.ornament.width;
var next_context = TickContext.getNextContext(this.note.getTickContext());
if (next_context) {
glyph_x += (next_context.getX() - glyph_x) * 0.5;
} else {
glyph_x += (stave.x + stave.width - glyph_x) * 0.5;
}
}
var ornament = this;
function drawAccidental(ctx, code, upper) {
var mods = acc_mods[code];
var accidental = Flow.accidentalCodes(code);
var acc_x = glyph_x - 3;
var acc_y = glyph_y + 2;
// Special adjustments for trill glyph
if (upper) {
acc_y -= mods ? mods.height : 18;
acc_y += ornament.type === 'tr' ? -8 : 0;
} else {
acc_y += ornament.type === 'tr' ? -6 : 0;
}
// Fine tune position of accidental glyph
if (mods) {
acc_x += mods.shift_x;
acc_y += upper ? mods.shift_y_upper : mods.shift_y_lower;
}
// Render the glyph
var scale = ornament.render_options.font_scale / 1.3;
Glyph.renderGlyph(ctx, acc_x, acc_y, scale, accidental.code);
// If rendered a bottom accidental, increase the y value by the
// accidental height so that the ornament's glyph is shifted up
if (!upper) {
glyph_y -= mods ? mods.height : 18;
}
}
// Draw lower accidental for ornament
if (this.accidental_lower) {
drawAccidental(ctx, this.accidental_lower, false, glyph_x, glyph_y);
}
L$10('Rendering ornament: ', this.ornament, glyph_x, glyph_y);
Glyph.renderGlyph(ctx, glyph_x, glyph_y, this.render_options.font_scale, this.ornament.code);
// Draw upper accidental for ornament
if (this.accidental_upper) {
drawAccidental(ctx, this.accidental_upper, true, glyph_x, glyph_y);
}
}
}]);
return Ornament;
}(Modifier);
// To enable logging for this class. Set `Vex.Flow.Annotation.DEBUG` to `true`.
function L$11() {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
if (Annotation.DEBUG) Vex.L('Vex.Flow.Annotation', args);
}
var Annotation = function (_Modifier) {
inherits(Annotation, _Modifier);
createClass(Annotation, null, [{
key: 'format',
// Arrange annotations within a `ModifierContext`
value: function format(annotations, state) {
if (!annotations || annotations.length === 0) return false;
var width = 0;
for (var i = 0; i < annotations.length; ++i) {
var annotation = annotations[i];
width = Math.max(annotation.getWidth(), width);
if (annotation.getPosition() === Modifier.Position.ABOVE) {
annotation.setTextLine(state.top_text_line);
state.top_text_line++;
} else {
annotation.setTextLine(state.text_line);
state.text_line++;
}
}
state.left_shift += width / 2;
state.right_shift += width / 2;
return true;
}
// ## Prototype Methods
//
// Annotations inherit from `Modifier` and is positioned correctly when
// in a `ModifierContext`.
// Create a new `Annotation` with the string `text`.
}, {
key: 'CATEGORY',
get: function get() {
return 'annotations';
}
// Text annotations can be positioned and justified relative to the note.
}, {
key: 'Justify',
get: function get() {
return {
LEFT: 1,
CENTER: 2,
RIGHT: 3,
CENTER_STEM: 4
};
}
}, {
key: 'VerticalJustify',
get: function get() {
return {
TOP: 1,
CENTER: 2,
BOTTOM: 3,
CENTER_STEM: 4
};
}
}]);
function Annotation(text) {
classCallCheck(this, Annotation);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(Annotation).call(this));
_this.note = null;
_this.index = null;
_this.text = text;
_this.justification = Annotation.Justify.CENTER;
_this.vert_justification = Annotation.VerticalJustify.TOP;
_this.font = {
family: 'Arial',
size: 10,
weight: ''
};
// The default width is calculated from the text.
_this.setWidth(Flow.textWidth(text));
return _this;
}
createClass(Annotation, [{
key: 'getCategory',
value: function getCategory() {
return Annotation.CATEGORY;
}
// Set font family, size, and weight. E.g., `Arial`, `10pt`, `Bold`.
}, {
key: 'setFont',
value: function setFont(family, size, weight) {
this.font = { family: family, size: size, weight: weight };
return this;
}
// Set vertical position of text (above or below stave). `just` must be
// a value in `Annotation.VerticalJustify`.
}, {
key: 'setVerticalJustification',
value: function setVerticalJustification(just) {
this.vert_justification = just;
return this;
}
// Get and set horizontal justification. `justification` is a value in
// `Annotation.Justify`.
}, {
key: 'getJustification',
value: function getJustification() {
return this.justification;
}
}, {
key: 'setJustification',
value: function setJustification(justification) {
this.justification = justification;
return this;
}
// Render text beside the note.
}, {
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoContext', "Can't draw text annotation without a context.");
}
if (!this.note) {
throw new Vex.RERR('NoNoteForAnnotation', "Can't draw text annotation without an attached note.");
}
var start = this.note.getModifierStartXY(Modifier.Position.ABOVE, this.index);
// We're changing context parameters. Save current state.
this.context.save();
this.context.setFont(this.font.family, this.font.size, this.font.weight);
var text_width = this.context.measureText(this.text).width;
// Estimate text height to be the same as the width of an 'm'.
//
// This is a hack to work around the inability to measure text height
// in HTML5 Canvas (and SVG).
var text_height = this.context.measureText('m').width;
var x = void 0;
var y = void 0;
if (this.justification === Annotation.Justify.LEFT) {
x = start.x;
} else if (this.justification === Annotation.Justify.RIGHT) {
x = start.x - text_width;
} else if (this.justification === Annotation.Justify.CENTER) {
x = start.x - text_width / 2;
} else /* CENTER_STEM */{
x = this.note.getStemX() - text_width / 2;
}
var stem_ext = void 0;
var spacing = void 0;
var has_stem = this.note.hasStem();
var stave = this.note.getStave();
// The position of the text varies based on whether or not the note
// has a stem.
if (has_stem) {
stem_ext = this.note.getStem().getExtents();
spacing = stave.getSpacingBetweenLines();
}
if (this.vert_justification === Annotation.VerticalJustify.BOTTOM) {
y = stave.getYForBottomText(this.text_line);
if (has_stem) {
var stem_base = this.note.getStemDirection() === 1 ? stem_ext.baseY : stem_ext.topY;
y = Math.max(y, stem_base + spacing * (this.text_line + 2));
}
} else if (this.vert_justification === Annotation.VerticalJustify.CENTER) {
var yt = this.note.getYForTopText(this.text_line) - 1;
var yb = stave.getYForBottomText(this.text_line);
y = yt + (yb - yt) / 2 + text_height / 2;
} else if (this.vert_justification === Annotation.VerticalJustify.TOP) {
y = Math.min(stave.getYForTopText(this.text_line), this.note.getYs()[0] - 10);
if (has_stem) {
y = Math.min(y, stem_ext.topY - 5 - spacing * this.text_line);
}
} else /* CENTER_STEM */{
var extents = this.note.getStemExtents();
y = extents.topY + (extents.baseY - extents.topY) / 2 + text_height / 2;
}
L$11('Rendering annotation: ', this.text, x, y);
this.context.fillText(this.text, x, y);
this.context.restore();
}
}]);
return Annotation;
}(Modifier);
/**
@param text Text for bend ("Full", "Half", etc.) (DEPRECATED)
@param release If true, render a release. (DEPRECATED)
@param phrase If set, ignore "text" and "release", and use the more
sophisticated phrase specified.
Example of a phrase:
[{
type: UP,
text: "whole"
width: 8;
},
{
type: DOWN,
text: "whole"
width: 8;
},
{
type: UP,
text: "half"
width: 8;
},
{
type: UP,
text: "whole"
width: 8;
},
{
type: DOWN,
text: "1 1/2"
width: 8;
}]
*/
var Bend = function (_Modifier) {
inherits(Bend, _Modifier);
createClass(Bend, null, [{
key: 'format',
// ## Static Methods
// Arrange bends in `ModifierContext`
value: function format(bends, state) {
if (!bends || bends.length === 0) return false;
var last_width = 0;
// Bends are always on top.
var text_line = state.top_text_line;
// Format Bends
for (var i = 0; i < bends.length; ++i) {
var bend = bends[i];
bend.setXShift(last_width);
last_width = bend.getWidth();
bend.setTextLine(text_line);
}
state.right_shift += last_width;
state.top_text_line += 1;
return true;
}
// ## Prototype Methods
}, {
key: 'CATEGORY',
get: function get() {
return 'bends';
}
}, {
key: 'UP',
get: function get() {
return 0;
}
}, {
key: 'DOWN',
get: function get() {
return 1;
}
}]);
function Bend(text, release, phrase) {
classCallCheck(this, Bend);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(Bend).call(this));
_this.text = text;
_this.x_shift = 0;
_this.release = release || false;
_this.font = '10pt Arial';
_this.render_options = {
line_width: 1.5,
line_style: '#777777',
bend_width: 8,
release_width: 8
};
if (phrase) {
_this.phrase = phrase;
} else {
// Backward compatibility
_this.phrase = [{ type: Bend.UP, text: _this.text }];
if (_this.release) _this.phrase.push({ type: Bend.DOWN, text: '' });
}
_this.updateWidth();
return _this;
}
createClass(Bend, [{
key: 'getCategory',
value: function getCategory() {
return Bend.CATEGORY;
}
}, {
key: 'setXShift',
value: function setXShift(value) {
this.x_shift = value;
this.updateWidth();
}
}, {
key: 'setFont',
value: function setFont(font) {
this.font = font;return this;
}
}, {
key: 'getText',
value: function getText() {
return this.text;
}
}, {
key: 'updateWidth',
value: function updateWidth() {
var that = this;
function measure_text(text) {
var text_width = void 0;
if (that.context) {
text_width = that.context.measureText(text).width;
} else {
text_width = Flow.textWidth(text);
}
return text_width;
}
var total_width = 0;
for (var i = 0; i < this.phrase.length; ++i) {
var bend = this.phrase[i];
if ('width' in bend) {
total_width += bend.width;
} else {
var additional_width = bend.type === Bend.UP ? this.render_options.bend_width : this.render_options.release_width;
bend.width = Vex.Max(additional_width, measure_text(bend.text)) + 3;
bend.draw_width = bend.width / 2;
total_width += bend.width;
}
}
this.setWidth(total_width + this.x_shift);
return this;
}
}, {
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoContext', "Can't draw bend without a context.");
}
if (!(this.note && this.index != null)) {
throw new Vex.RERR('NoNoteForBend', "Can't draw bend without a note or index.");
}
var start = this.note.getModifierStartXY(Modifier.Position.RIGHT, this.index);
start.x += 3;
start.y += 0.5;
var x_shift = this.x_shift;
var ctx = this.context;
var bend_height = this.note.getStave().getYForTopText(this.text_line) + 3;
var annotation_y = this.note.getStave().getYForTopText(this.text_line) - 1;
var that = this;
function renderBend(x, y, width, height) {
var cp_x = x + width;
var cp_y = y;
ctx.save();
ctx.beginPath();
ctx.setLineWidth(that.render_options.line_width);
ctx.setStrokeStyle(that.render_options.line_style);
ctx.setFillStyle(that.render_options.line_style);
ctx.moveTo(x, y);
ctx.quadraticCurveTo(cp_x, cp_y, x + width, height);
ctx.stroke();
ctx.restore();
}
function renderRelease(x, y, width, height) {
ctx.save();
ctx.beginPath();
ctx.setLineWidth(that.render_options.line_width);
ctx.setStrokeStyle(that.render_options.line_style);
ctx.setFillStyle(that.render_options.line_style);
ctx.moveTo(x, height);
ctx.quadraticCurveTo(x + width, height, x + width, y);
ctx.stroke();
ctx.restore();
}
function renderArrowHead(x, y, direction) {
var width = 4;
var dir = direction || 1;
ctx.beginPath();
ctx.moveTo(x, y);
ctx.lineTo(x - width, y + width * dir);
ctx.lineTo(x + width, y + width * dir);
ctx.closePath();
ctx.fill();
}
function renderText(x, text) {
ctx.save();
ctx.setRawFont(that.font);
var render_x = x - ctx.measureText(text).width / 2;
ctx.fillText(text, render_x, annotation_y);
ctx.restore();
}
var last_bend = null;
var last_drawn_width = 0;
for (var i = 0; i < this.phrase.length; ++i) {
var bend = this.phrase[i];
if (i === 0) bend.draw_width += x_shift;
last_drawn_width = bend.draw_width + (last_bend ? last_bend.draw_width : 0) - (i === 1 ? x_shift : 0);
if (bend.type === Bend.UP) {
if (last_bend && last_bend.type === Bend.UP) {
renderArrowHead(start.x, bend_height);
}
renderBend(start.x, start.y, last_drawn_width, bend_height);
}
if (bend.type === Bend.DOWN) {
if (last_bend && last_bend.type === Bend.UP) {
renderRelease(start.x, start.y, last_drawn_width, bend_height);
}
if (last_bend && last_bend.type === Bend.DOWN) {
renderArrowHead(start.x, start.y, -1);
renderRelease(start.x, start.y, last_drawn_width, bend_height);
}
if (last_bend === null) {
last_drawn_width = bend.draw_width;
renderRelease(start.x, start.y, last_drawn_width, bend_height);
}
}
renderText(start.x + last_drawn_width, bend.text);
last_bend = bend;
last_bend.x = start.x;
start.x += last_drawn_width;
}
// Final arrowhead and text
if (last_bend.type === Bend.UP) {
renderArrowHead(last_bend.x + last_drawn_width, bend_height);
} else if (last_bend.type === Bend.DOWN) {
renderArrowHead(last_bend.x + last_drawn_width, start.y, -1);
}
}
}]);
return Bend;
}(Modifier);
var Vibrato = function (_Modifier) {
inherits(Vibrato, _Modifier);
createClass(Vibrato, null, [{
key: 'format',
// ## Static Methods
// Arrange vibratos inside a `ModifierContext`.
value: function format(vibratos, state, context) {
if (!vibratos || vibratos.length === 0) return false;
// Vibratos are always on top.
var text_line = state.top_text_line;
var width = 0;
var shift = state.right_shift - 7;
// If there's a bend, drop the text line
var bends = context.getModifiers(Bend.CATEGORY);
if (bends && bends.length > 0) {
text_line--;
}
// Format Vibratos
for (var i = 0; i < vibratos.length; ++i) {
var vibrato = vibratos[i];
vibrato.setXShift(shift);
vibrato.setTextLine(text_line);
width += vibrato.getWidth();
shift += width;
}
state.right_shift += width;
state.top_text_line += 1;
return true;
}
// ## Prototype Methods
}, {
key: 'CATEGORY',
get: function get() {
return 'vibratos';
}
}]);
function Vibrato() {
classCallCheck(this, Vibrato);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(Vibrato).call(this));
_this.harsh = false;
_this.position = Modifier.Position.RIGHT;
_this.render_options = {
vibrato_width: 20,
wave_height: 6,
wave_width: 4,
wave_girth: 2
};
_this.setVibratoWidth(_this.render_options.vibrato_width);
return _this;
}
createClass(Vibrato, [{
key: 'getCategory',
value: function getCategory() {
return Vibrato.CATEGORY;
}
}, {
key: 'setHarsh',
value: function setHarsh(harsh) {
this.harsh = harsh;return this;
}
}, {
key: 'setVibratoWidth',
value: function setVibratoWidth(width) {
this.vibrato_width = width;
this.setWidth(this.vibrato_width);
return this;
}
}, {
key: 'draw',
value: function draw() {
var _this2 = this;
if (!this.context) {
throw new Vex.RERR('NoContext', "Can't draw vibrato without a context.");
}
if (!this.note) {
throw new Vex.RERR('NoNoteForVibrato', "Can't draw vibrato without an attached note.");
}
var start = this.note.getModifierStartXY(Modifier.Position.RIGHT, this.index);
var ctx = this.context;
var vibrato_width = this.vibrato_width;
var renderVibrato = function renderVibrato(x, y) {
var _render_options = _this2.render_options;
var wave_width = _render_options.wave_width;
var wave_girth = _render_options.wave_girth;
var wave_height = _render_options.wave_height;
var num_waves = vibrato_width / wave_width;
ctx.beginPath();
var i = void 0;
if (_this2.harsh) {
ctx.moveTo(x, y + wave_girth + 1);
for (i = 0; i < num_waves / 2; ++i) {
ctx.lineTo(x + wave_width, y - wave_height / 2);
x += wave_width;
ctx.lineTo(x + wave_width, y + wave_height / 2);
x += wave_width;
}
for (i = 0; i < num_waves / 2; ++i) {
ctx.lineTo(x - wave_width, y - wave_height / 2 + wave_girth + 1);
x -= wave_width;
ctx.lineTo(x - wave_width, y + wave_height / 2 + wave_girth + 1);
x -= wave_width;
}
ctx.fill();
} else {
ctx.moveTo(x, y + wave_girth);
for (i = 0; i < num_waves / 2; ++i) {
ctx.quadraticCurveTo(x + wave_width / 2, y - wave_height / 2, x + wave_width, y);
x += wave_width;
ctx.quadraticCurveTo(x + wave_width / 2, y + wave_height / 2, x + wave_width, y);
x += wave_width;
}
for (i = 0; i < num_waves / 2; ++i) {
ctx.quadraticCurveTo(x - wave_width / 2, y + wave_height / 2 + wave_girth, x - wave_width, y + wave_girth);
x -= wave_width;
ctx.quadraticCurveTo(x - wave_width / 2, y - wave_height / 2 + wave_girth, x - wave_width, y + wave_girth);
x -= wave_width;
}
ctx.fill();
}
};
var vx = start.x + this.x_shift;
var vy = this.note.getYForTopText(this.text_line) + 2;
renderVibrato(vx, vy);
}
}]);
return Vibrato;
}(Modifier);
// To enable logging for this class. Set `Vex.Flow.ModifierContext.DEBUG` to `true`.
function L$6() {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
if (ModifierContext.DEBUG) Vex.L('Vex.Flow.ModifierContext', args);
}
var ModifierContext = function () {
function ModifierContext() {
classCallCheck(this, ModifierContext);
// Current modifiers
this.modifiers = {};
// Formatting data.
this.preFormatted = false;
this.postFormatted = false;
this.width = 0;
this.spacing = 0;
this.state = {
left_shift: 0,
right_shift: 0,
text_line: 0,
top_text_line: 0
};
// Add new modifiers to this array. The ordering is significant -- lower
// modifiers are formatted and rendered before higher ones.
this.PREFORMAT = [StaveNote, Dot, FretHandFinger, Accidental, GraceNoteGroup, Stroke, StringNumber, Articulation, Ornament, Annotation, Bend, Vibrato];
// If post-formatting is required for an element, add it to this array.
this.POSTFORMAT = [StaveNote];
}
createClass(ModifierContext, [{
key: 'addModifier',
value: function addModifier(modifier) {
var type = modifier.getCategory();
if (!this.modifiers[type]) this.modifiers[type] = [];
this.modifiers[type].push(modifier);
modifier.setModifierContext(this);
this.preFormatted = false;
return this;
}
}, {
key: 'getModifiers',
value: function getModifiers(type) {
return this.modifiers[type];
}
}, {
key: 'getWidth',
value: function getWidth() {
return this.width;
}
}, {
key: 'getExtraLeftPx',
value: function getExtraLeftPx() {
return this.state.left_shift;
}
}, {
key: 'getExtraRightPx',
value: function getExtraRightPx() {
return this.state.right_shift;
}
}, {
key: 'getState',
value: function getState() {
return this.state;
}
}, {
key: 'getMetrics',
value: function getMetrics() {
if (!this.formatted) {
throw new Vex.RERR('UnformattedModifier', 'Unformatted modifier has no metrics.');
}
return {
width: this.state.left_shift + this.state.right_shift + this.spacing,
spacing: this.spacing,
extra_left_px: this.state.left_shift,
extra_right_px: this.state.right_shift
};
}
}, {
key: 'preFormat',
value: function preFormat() {
var _this = this;
if (this.preFormatted) return;
this.PREFORMAT.forEach(function (modifier) {
L$6('Preformatting ModifierContext: ', modifier.CATEGORY);
modifier.format(_this.getModifiers(modifier.CATEGORY), _this.state, _this);
});
// Update width of this modifier context
this.width = this.state.left_shift + this.state.right_shift;
this.preFormatted = true;
}
}, {
key: 'postFormat',
value: function postFormat() {
var _this2 = this;
if (this.postFormatted) return;
this.POSTFORMAT.forEach(function (modifier) {
L$6('Postformatting ModifierContext: ', modifier.CATEGORY);
modifier.postFormat(_this2.getModifiers(modifier.CATEGORY), _this2);
});
}
}]);
return ModifierContext;
}();
// To enable logging for this class. Set `Vex.Flow.Formatter.DEBUG` to `true`.
function L() {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
if (Formatter.DEBUG) Vex.L('Vex.Flow.Formatter', args);
}
// Helper function to locate the next non-rest note(s).
function lookAhead(notes, restLine, i, compare) {
// If no valid next note group, nextRestLine is same as current.
var nextRestLine = restLine;
// Get the rest line for next valid non-rest note group.
for (i += 1; i < notes.length; i += 1) {
var note = notes[i];
if (!note.isRest() && !note.shouldIgnoreTicks()) {
nextRestLine = note.getLineForRest();
break;
}
}
// Locate the mid point between two lines.
if (compare && restLine !== nextRestLine) {
var top = Math.max(restLine, nextRestLine);
var bot = Math.min(restLine, nextRestLine);
nextRestLine = Vex.MidLine(top, bot);
}
return nextRestLine;
}
// Take an array of `voices` and place aligned tickables in the same context. Returns
// a mapping from `tick` to `ContextType`, a list of `tick`s, and the resolution
// multiplier.
//
// Params:
// * `voices`: Array of `Voice` instances.
// * `ContextType`: A context class (e.g., `ModifierContext`, `TickContext`)
// * `addToContext`: Function to add tickable to context.
function createContexts(voices, ContextType, addToContext) {
if (!voices || !voices.length) {
throw new Vex.RERR('BadArgument', 'No voices to format');
}
// Find out highest common multiple of resolution multipliers.
// The purpose of this is to find out a common denominator
// for all fractional tick values in all tickables of all voices,
// so that the values can be expanded and the numerator used
// as an integer tick value.
var totalTicks = voices[0].getTotalTicks();
var resolutionMultiplier = voices.reduce(function (resolutionMultiplier, voice) {
if (!voice.getTotalTicks().equals(totalTicks)) {
throw new Vex.RERR('TickMismatch', 'Voices should have same total note duration in ticks.');
}
if (voice.getMode() === Voice.Mode.STRICT && !voice.isComplete()) {
throw new Vex.RERR('IncompleteVoice', 'Voice does not have enough notes.');
}
return Math.max(resolutionMultiplier, Fraction.LCM(resolutionMultiplier, voice.getResolutionMultiplier()));
}, 1);
// Initialize tick maps.
var tickToContextMap = {};
var tickList = [];
var contexts = [];
// For each voice, extract notes and create a context for every
// new tick that hasn't been seen before.
voices.forEach(function (voice) {
// Use resolution multiplier as denominator to expand ticks
// to suitable integer values, so that no additional expansion
// of fractional tick values is needed.
var ticksUsed = new Fraction(0, resolutionMultiplier);
voice.getTickables().forEach(function (tickable) {
var integerTicks = ticksUsed.numerator;
// If we have no tick context for this tick, create one.
if (!tickToContextMap[integerTicks]) {
var newContext = new ContextType();
contexts.push(newContext);
tickToContextMap[integerTicks] = newContext;
}
// Add this tickable to the TickContext.
addToContext(tickable, tickToContextMap[integerTicks]);
// Maintain a sorted list of tick contexts.
tickList.push(integerTicks);
ticksUsed.add(tickable.getTicks());
});
});
return {
map: tickToContextMap,
array: contexts,
list: Vex.SortAndUnique(tickList, function (a, b) {
return a - b;
}, function (a, b) {
return a === b;
}),
resolutionMultiplier: resolutionMultiplier
};
}
var Formatter = function () {
createClass(Formatter, null, [{
key: 'FormatAndDraw',
// Helper function to format and draw a single voice. Returns a bounding
// box for the notation.
//
// Parameters:
// * `ctx` - The rendering context
// * `stave` - The stave to which to draw (`Stave` or `TabStave`)
// * `notes` - Array of `Note` instances (`StaveNote`, `TextNote`, `TabNote`, etc.)
// * `params` - One of below:
// * Setting `autobeam` only `(context, stave, notes, true)` or
// `(ctx, stave, notes, {autobeam: true})`
// * Setting `align_rests` a struct is needed `(context, stave, notes, {align_rests: true})`
// * Setting both a struct is needed `(context, stave, notes, {
// autobeam: true, align_rests: true})`
//
// `autobeam` automatically generates beams for the notes.
// `align_rests` aligns rests with nearby notes.
value: function FormatAndDraw(ctx, stave, notes, params) {
var options = {
auto_beam: false,
align_rests: false
};
if ((typeof params === 'undefined' ? 'undefined' : _typeof(params)) === 'object') {
Vex.Merge(options, params);
} else if (typeof params === 'boolean') {
options.auto_beam = params;
}
// Start by creating a voice and adding all the notes to it.
var voice = new Voice(Flow.TIME4_4).setMode(Voice.Mode.SOFT).addTickables(notes);
// Then create beams, if requested.
var beams = options.auto_beam ? Beam.applyAndGetBeams(voice) : [];
// Instantiate a `Formatter` and format the notes.
new Formatter().joinVoices([voice], { align_rests: options.align_rests }).formatToStave([voice], stave, { align_rests: options.align_rests });
// Render the voice and beams to the stave.
voice.setStave(stave).draw(ctx, stave);
beams.forEach(function (beam) {
return beam.setContext(ctx).draw();
});
// Return the bounding box of the voice.
return voice.getBoundingBox();
}
// Helper function to format and draw aligned tab and stave notes in two
// separate staves.
//
// Parameters:
// * `ctx` - The rendering context
// * `tabstave` - A `TabStave` instance on which to render `TabNote`s.
// * `stave` - A `Stave` instance on which to render `Note`s.
// * `notes` - Array of `Note` instances for the stave (`StaveNote`, `BarNote`, etc.)
// * `tabnotes` - Array of `Note` instances for the tab stave (`TabNote`, `BarNote`, etc.)
// * `autobeam` - Automatically generate beams.
// * `params` - A configuration object:
// * `autobeam` automatically generates beams for the notes.
// * `align_rests` aligns rests with nearby notes.
}, {
key: 'FormatAndDrawTab',
value: function FormatAndDrawTab(ctx, tabstave, stave, tabnotes, notes, autobeam, params) {
var opts = {
auto_beam: autobeam,
align_rests: false
};
if ((typeof params === 'undefined' ? 'undefined' : _typeof(params)) === 'object') {
Vex.Merge(opts, params);
} else if (typeof params === 'boolean') {
opts.auto_beam = params;
}
// Create a `4/4` voice for `notes`.
var notevoice = new Voice(Flow.TIME4_4).setMode(Voice.Mode.SOFT).addTickables(notes);
// Create a `4/4` voice for `tabnotes`.
var tabvoice = new Voice(Flow.TIME4_4).setMode(Voice.Mode.SOFT).addTickables(tabnotes);
// Then create beams, if requested.
var beams = opts.auto_beam ? Beam.applyAndGetBeams(notevoice) : [];
// Instantiate a `Formatter` and align tab and stave notes.
new Formatter().joinVoices([notevoice], { align_rests: opts.align_rests }).joinVoices([tabvoice]).formatToStave([notevoice, tabvoice], stave, { align_rests: opts.align_rests });
// Render voices and beams to staves.
notevoice.draw(ctx, stave);
tabvoice.draw(ctx, tabstave);
beams.forEach(function (beam) {
return beam.setContext(ctx).draw();
});
// Draw a connector between tab and note staves.
new StaveConnector(stave, tabstave).setContext(ctx).draw();
}
// Auto position rests based on previous/next note positions.
//
// Params:
// * `notes`: An array of notes.
// * `alignAllNotes`: If set to false, only aligns non-beamed notes.
// * `alignTuplets`: If set to false, ignores tuplets.
}, {
key: 'AlignRestsToNotes',
value: function AlignRestsToNotes(notes, alignAllNotes, alignTuplets) {
notes.forEach(function (note, index) {
if (note instanceof StaveNote && note.isRest()) {
if (note.tuplet && !alignTuplets) return;
// If activated rests not on default can be rendered as specified.
var position = note.getGlyph().position.toUpperCase();
if (position !== 'R/4' && position !== 'B/4') return;
if (alignAllNotes || note.beam != null) {
// Align rests with previous/next notes.
var props = note.getKeyProps()[0];
if (index === 0) {
props.line = lookAhead(notes, props.line, index, false);
note.setKeyLine(0, props.line);
} else if (index > 0 && index < notes.length) {
// If previous note is a rest, use its line number.
var restLine = void 0;
if (notes[index - 1].isRest()) {
restLine = notes[index - 1].getKeyProps()[0].line;
props.line = restLine;
} else {
restLine = notes[index - 1].getLineForRest();
// Get the rest line for next valid non-rest note group.
props.line = lookAhead(notes, restLine, index, true);
}
note.setKeyLine(0, props.line);
}
}
}
});
return this;
}
}]);
function Formatter() {
classCallCheck(this, Formatter);
// Minimum width required to render all the notes in the voices.
this.minTotalWidth = 0;
// This is set to `true` after `minTotalWidth` is calculated.
this.hasMinTotalWidth = false;
// The suggested amount of space for each tick.
this.pixelsPerTick = 0;
// Total number of ticks in the voice.
this.totalTicks = new Fraction(0, 1);
// Arrays of tick and modifier contexts.
this.tickContexts = null;
this.modiferContexts = null;
}
// Find all the rests in each of the `voices` and align them
// to neighboring notes. If `alignAllNotes` is `false`, then only
// align non-beamed notes.
createClass(Formatter, [{
key: 'alignRests',
value: function alignRests(voices, alignAllNotes) {
if (!voices || !voices.length) {
throw new Vex.RERR('BadArgument', 'No voices to format rests');
}
voices.forEach(function (voice) {
return Formatter.AlignRestsToNotes(voice.getTickables(), alignAllNotes);
});
}
// Calculate the minimum width required to align and format `voices`.
}, {
key: 'preCalculateMinTotalWidth',
value: function preCalculateMinTotalWidth(voices) {
// Cache results.
if (this.hasMinTotalWidth) return this.minTotalWidth;
// Create tick contexts if not already created.
if (!this.tickContexts) {
if (!voices) {
throw new Vex.RERR('BadArgument', "'voices' required to run preCalculateMinTotalWidth");
}
this.createTickContexts(voices);
}
var _tickContexts = this.tickContexts;
var contextList = _tickContexts.list;
var contextMap = _tickContexts.map;
// Go through each tick context and calculate total width.
this.minTotalWidth = contextList.map(function (tick) {
var context = contextMap[tick];
context.preFormat();
return context.getWidth();
}).reduce(function (a, b) {
return a + b;
}, 0);
this.hasMinTotalWidth = true;
return this.minTotalWidth;
}
// Get minimum width required to render all voices. Either `format` or
// `preCalculateMinTotalWidth` must be called before this method.
}, {
key: 'getMinTotalWidth',
value: function getMinTotalWidth() {
if (!this.hasMinTotalWidth) {
throw new Vex.RERR('NoMinTotalWidth', "Call 'preCalculateMinTotalWidth' or 'preFormat' before calling 'getMinTotalWidth'");
}
return this.minTotalWidth;
}
// Create `ModifierContext`s for each tick in `voices`.
}, {
key: 'createModifierContexts',
value: function createModifierContexts(voices) {
var contexts = createContexts(voices, ModifierContext, function (tickable, context) {
return tickable.addToModifierContext(context);
});
this.modiferContexts = contexts;
return contexts;
}
// Create `TickContext`s for each tick in `voices`. Also calculate the
// total number of ticks in voices.
}, {
key: 'createTickContexts',
value: function createTickContexts(voices) {
var contexts = createContexts(voices, TickContext, function (tickable, context) {
return context.addTickable(tickable);
});
contexts.array.forEach(function (context) {
context.tContexts = contexts.array;
});
this.totalTicks = voices[0].getTicksUsed().clone();
this.tickContexts = contexts;
return contexts;
}
// This is the core formatter logic. Format voices and justify them
// to `justifyWidth` pixels. `renderingContext` is required to justify elements
// that can't retreive widths without a canvas. This method sets the `x` positions
// of all the tickables/notes in the formatter.
}, {
key: 'preFormat',
value: function preFormat(justifyWidth, renderingContext, voices, stave) {
var _this = this;
// Initialize context maps.
var contexts = this.tickContexts;
var contextList = contexts.list;
var contextMap = contexts.map;
var resolutionMultiplier = contexts.resolutionMultiplier;
// If voices and a stave were provided, set the Stave for each voice
// and preFormat to apply Y values to the notes;
if (voices && stave) {
voices.forEach(function (voice) {
return voice.setStave(stave).preFormat();
});
}
// Figure out how many pixels to allocate per tick.
if (!justifyWidth) {
justifyWidth = 0;
this.pixelsPerTick = 0;
} else {
this.pixelsPerTick = justifyWidth / (this.totalTicks.value() * resolutionMultiplier);
}
// Now distribute the ticks to each tick context, and assign them their
// own X positions.
var x = 0;
var centerX = justifyWidth / 2;
var whiteSpace = 0; // White space to right of previous note
var tickSpace = 0; // Pixels from prev note x-pos to curent note x-pos
var prevTick = 0;
var prevWidth = 0;
var lastMetrics = null;
var initialJustifyWidth = justifyWidth;
this.minTotalWidth = 0;
// Pass 1: Give each note maximum width requested by context.
contextList.forEach(function (tick, index) {
var context = contextMap[tick];
if (renderingContext) context.setContext(renderingContext);
// Make sure that all tickables in this context have calculated their
// space requirements.
context.preFormat();
var thisMetrics = context.getMetrics();
var width = context.getWidth();
_this.minTotalWidth += width;
var minX = 0;
var pxUsed = width;
// Calculate space between last note and next note.
tickSpace = Math.min((tick - prevTick) * _this.pixelsPerTick, pxUsed);
// Shift next note up `tickSpace` pixels.
var setX = x + tickSpace;
// Calculate the minimum next note position to allow for right modifiers.
if (lastMetrics != null) {
minX = x + prevWidth - lastMetrics.extraLeftPx;
}
// Determine the space required for the previous tick.
// The `shouldIgnoreTicks` bool is true for elements in the stave
// that don't consume ticks (bar lines, key and time signatures, etc.)
setX = context.shouldIgnoreTicks() ? minX + context.getWidth() : Math.max(setX, minX);
if (context.shouldIgnoreTicks() && justifyWidth) {
// This note stole room... recalculate with new justification width.
justifyWidth -= context.getWidth();
_this.pixelsPerTick = justifyWidth / (_this.totalTicks.value() * resolutionMultiplier);
}
// Determine pixels needed for left modifiers.
var leftPx = thisMetrics.extraLeftPx;
// Determine white space to right of previous tick (from right modifiers.)
if (lastMetrics != null) {
whiteSpace = setX - x - (prevWidth - lastMetrics.extraLeftPx);
}
// Deduct pixels from white space quota.
if (index > 0 && whiteSpace > 0) {
if (whiteSpace >= leftPx) {
// Have enough white space for left modifiers - no offset needed.
leftPx = 0;
} else {
// Decrease left modifier offset by amount of white space.
leftPx -= whiteSpace;
}
}
// Adjust the tick x position with the left modifier offset.
setX += leftPx;
// Set the `x` value for the context, which sets the `x` value for all
// tickables in this context.
context.setX(setX);
context.setPixelsUsed(pxUsed); // ??? Remove this if nothing breaks
lastMetrics = thisMetrics;
prevWidth = width;
prevTick = tick;
x = setX;
});
this.hasMinTotalWidth = true;
if (justifyWidth > 0) {
(function () {
// Pass 2: Take leftover width, and distribute it to proportionately to
// all notes.
var remainingX = initialJustifyWidth - (x + prevWidth);
var leftoverPxPerTick = remainingX / (_this.totalTicks.value() * resolutionMultiplier);
var spaceAccum = 0;
contextList.forEach(function (tick, index) {
var prevTick = contextList[index - 1] || 0;
var context = contextMap[tick];
var tickSpace = (tick - prevTick) * leftoverPxPerTick;
spaceAccum += tickSpace;
context.setX(context.getX() + spaceAccum);
// Move center aligned tickables to middle
context.getCenterAlignedTickables().forEach(function (tickable) {
// eslint-disable-line
tickable.center_x_shift = centerX - context.getX();
});
});
})();
}
}
// This is the top-level call for all formatting logic completed
// after `x` *and* `y` values have been computed for the notes
// in the voices.
}, {
key: 'postFormat',
value: function postFormat() {
var postFormatContexts = function postFormatContexts(contexts) {
return contexts.list.forEach(function (tick) {
return contexts.map[tick].postFormat();
});
};
postFormatContexts(this.modiferContexts);
postFormatContexts(this.tickContexts);
return this;
}
// Take all `voices` and create `ModifierContext`s out of them. This tells
// the formatters that the voices belong on a single stave.
}, {
key: 'joinVoices',
value: function joinVoices(voices) {
this.createModifierContexts(voices);
this.hasMinTotalWidth = false;
return this;
}
// Align rests in voices, justify the contexts, and position the notes
// so voices are aligned and ready to render onto the stave. This method
// mutates the `x` positions of all tickables in `voices`.
//
// Voices are full justified to fit in `justifyWidth` pixels.
//
// Set `options.context` to the rendering context. Set `options.align_rests`
// to true to enable rest alignment.
}, {
key: 'format',
value: function format(voices, justifyWidth, options) {
var opts = {
align_rests: false,
context: null,
stave: null
};
Vex.Merge(opts, options);
this.alignRests(voices, opts.align_rests);
this.createTickContexts(voices);
this.preFormat(justifyWidth, opts.context, voices, opts.stave);
// Only postFormat if a stave was supplied for y value formatting
if (opts.stave) this.postFormat();
return this;
}
// This method is just like `format` except that the `justifyWidth` is inferred
// from the `stave`.
}, {
key: 'formatToStave',
value: function formatToStave(voices, stave, options) {
var justifyWidth = stave.getNoteEndX() - stave.getNoteStartX() - 10;
L('Formatting voices to width: ', justifyWidth);
var opts = { context: stave.getContext() };
Vex.Merge(opts, options);
return this.format(voices, justifyWidth, opts);
}
}]);
return Formatter;
}();
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
// A base class for stave modifiers (e.g. clefs, key signatures)
var StaveModifier = function () {
createClass(StaveModifier, null, [{
key: 'Position',
get: function get() {
return {
LEFT: 1,
RIGHT: 2,
ABOVE: 3,
BELOW: 4,
BEGIN: 5,
END: 6
};
}
}]);
function StaveModifier() {
classCallCheck(this, StaveModifier);
this.padding = 10;
this.position = StaveModifier.Position.ABOVE;
}
createClass(StaveModifier, [{
key: 'getPosition',
value: function getPosition() {
return this.position;
}
}, {
key: 'setPosition',
value: function setPosition(position) {
this.position = position;return this;
}
}, {
key: 'getStave',
value: function getStave() {
return this.stave;
}
}, {
key: 'setStave',
value: function setStave(stave) {
this.stave = stave;return this;
}
}, {
key: 'getWidth',
value: function getWidth() {
return this.width;
}
}, {
key: 'setWidth',
value: function setWidth(width) {
this.width = width;return this;
}
}, {
key: 'getX',
value: function getX() {
return this.x;
}
}, {
key: 'setX',
value: function setX(x) {
this.x = x;return this;
}
}, {
key: 'getCategory',
value: function getCategory() {
return '';
}
}, {
key: 'makeSpacer',
value: function makeSpacer(padding) {
return {
getContext: function getContext() {
return true;
},
setStave: function setStave() {},
renderToStave: function renderToStave() {},
getMetrics: function getMetrics() {
return { width: padding };
}
};
}
}, {
key: 'placeGlyphOnLine',
value: function placeGlyphOnLine(glyph, stave, line) {
glyph.setYShift(stave.getYForLine(line) - stave.getYForGlyphs());
}
}, {
key: 'getPadding',
value: function getPadding(index) {
return index !== undefined && index < 2 ? 0 : this.padding;
}
}, {
key: 'setPadding',
value: function setPadding(padding) {
this.padding = padding;return this;
}
}]);
return StaveModifier;
}();
var Barline = function (_StaveModifier) {
inherits(Barline, _StaveModifier);
createClass(Barline, null, [{
key: 'CATEGORY',
get: function get() {
return 'barlines';
}
}, {
key: 'type',
get: function get() {
return {
SINGLE: 1,
DOUBLE: 2,
END: 3,
REPEAT_BEGIN: 4,
REPEAT_END: 5,
REPEAT_BOTH: 6,
NONE: 7
};
}
/**
* @constructor
*/
}]);
function Barline(type) {
classCallCheck(this, Barline);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(Barline).call(this));
_this.thickness = Flow.STAVE_LINE_THICKNESS;
var TYPE = Barline.type;
_this.widths = {};
_this.widths[TYPE.SINGLE] = 5;
_this.widths[TYPE.DOUBLE] = 5;
_this.widths[TYPE.END] = 5;
_this.widths[TYPE.REPEAT_BEGIN] = 5;
_this.widths[TYPE.REPEAT_END] = 5;
_this.widths[TYPE.REPEAT_BOTH] = 5;
_this.widths[TYPE.NONE] = 5;
_this.paddings = {};
_this.paddings[TYPE.SINGLE] = 0;
_this.paddings[TYPE.DOUBLE] = 0;
_this.paddings[TYPE.END] = 0;
_this.paddings[TYPE.REPEAT_BEGIN] = 15;
_this.paddings[TYPE.REPEAT_END] = 15;
_this.paddings[TYPE.REPEAT_BOTH] = 15;
_this.paddings[TYPE.NONE] = 0;
_this.setPosition(StaveModifier.Position.BEGIN);
_this.setType(type);
return _this;
}
createClass(Barline, [{
key: 'getCategory',
value: function getCategory() {
return Barline.CATEGORY;
}
}, {
key: 'getType',
value: function getType() {
return this.type;
}
}, {
key: 'setType',
value: function setType(type) {
this.type = type;
this.setWidth(this.widths[this.type]);
this.setPadding(this.paddings[this.type]);
return this;
}
// Draw barlines
}, {
key: 'draw',
value: function draw(stave) {
switch (this.type) {
case Barline.type.SINGLE:
this.drawVerticalBar(stave, this.x, false);
break;
case Barline.type.DOUBLE:
this.drawVerticalBar(stave, this.x, true);
break;
case Barline.type.END:
this.drawVerticalEndBar(stave, this.x);
break;
case Barline.type.REPEAT_BEGIN:
// If the barline is shifted over (in front of clef/time/key)
// Draw vertical bar at the beginning.
this.drawRepeatBar(stave, this.x, true);
if (stave.getX() !== this.x) {
this.drawVerticalBar(stave, stave.getX());
}
break;
case Barline.type.REPEAT_END:
this.drawRepeatBar(stave, this.x, false);
break;
case Barline.type.REPEAT_BOTH:
this.drawRepeatBar(stave, this.x, false);
this.drawRepeatBar(stave, this.x, true);
break;
default:
// Default is NONE, so nothing to draw
break;
}
}
}, {
key: 'drawVerticalBar',
value: function drawVerticalBar(stave, x, double_bar) {
if (!stave.context) {
throw new Vex.RERR('NoCanvasContext', "Can't draw stave without canvas context.");
}
var topY = stave.getYForLine(0);
var botY = stave.getYForLine(stave.getNumLines() - 1) + this.thickness;
if (double_bar) {
stave.context.fillRect(x - 3, topY, 1, botY - topY);
}
stave.context.fillRect(x, topY, 1, botY - topY);
}
}, {
key: 'drawVerticalEndBar',
value: function drawVerticalEndBar(stave, x) {
if (!stave.context) {
throw new Vex.RERR('NoCanvasContext', "Can't draw stave without canvas context.");
}
var topY = stave.getYForLine(0);
var botY = stave.getYForLine(stave.getNumLines() - 1) + this.thickness;
stave.context.fillRect(x - 5, topY, 1, botY - topY);
stave.context.fillRect(x - 2, topY, 3, botY - topY);
}
}, {
key: 'drawRepeatBar',
value: function drawRepeatBar(stave, x, begin) {
if (!stave.context) {
throw new Vex.RERR('NoCanvasContext', "Can't draw stave without canvas context.");
}
var topY = stave.getYForLine(0);
var botY = stave.getYForLine(stave.getNumLines() - 1) + this.thickness;
var x_shift = 3;
if (!begin) {
x_shift = -5;
}
stave.context.fillRect(x + x_shift, topY, 1, botY - topY);
stave.context.fillRect(x - 2, topY, 3, botY - topY);
var dot_radius = 2;
// Shift dots left or right
if (begin) {
x_shift += 4;
} else {
x_shift -= 4;
}
var dot_x = x + x_shift + dot_radius / 2;
// calculate the y offset based on number of stave lines
var y_offset = (stave.getNumLines() - 1) * stave.getSpacingBetweenLines();
y_offset = y_offset / 2 - stave.getSpacingBetweenLines() / 2;
var dot_y = topY + y_offset + dot_radius / 2;
// draw the top repeat dot
stave.context.beginPath();
stave.context.arc(dot_x, dot_y, dot_radius, 0, Math.PI * 2, false);
stave.context.fill();
// draw the bottom repeat dot
dot_y += stave.getSpacingBetweenLines();
stave.context.beginPath();
stave.context.arc(dot_x, dot_y, dot_radius, 0, Math.PI * 2, false);
stave.context.fill();
}
}]);
return Barline;
}(StaveModifier);
var Repetition = function (_StaveModifier) {
inherits(Repetition, _StaveModifier);
createClass(Repetition, null, [{
key: 'CATEGORY',
get: function get() {
return 'repetitions';
}
}, {
key: 'type',
get: function get() {
return {
NONE: 1, // no coda or segno
CODA_LEFT: 2, // coda at beginning of stave
CODA_RIGHT: 3, // coda at end of stave
SEGNO_LEFT: 4, // segno at beginning of stave
SEGNO_RIGHT: 5, // segno at end of stave
DC: 6, // D.C. at end of stave
DC_AL_CODA: 7, // D.C. al coda at end of stave
DC_AL_FINE: 8, // D.C. al Fine end of stave
DS: 9, // D.S. at end of stave
DS_AL_CODA: 10, // D.S. al coda at end of stave
DS_AL_FINE: 11, // D.S. al Fine at end of stave
FINE: 12 };
}
}]);
function Repetition(type, x, y_shift) {
classCallCheck(this, Repetition);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(Repetition).call(this));
_this.symbol_type = type;
_this.x = x;
_this.x_shift = 0;
_this.y_shift = y_shift;
_this.font = {
family: 'times',
size: 12,
weight: 'bold italic'
};
return _this;
}
createClass(Repetition, [{
key: 'getCategory',
value: function getCategory() {
return Repetition.CATEGORY;
}
}, {
key: 'setShiftX',
value: function setShiftX(x) {
this.x_shift = x;return this;
}
}, {
key: 'setShiftY',
value: function setShiftY(y) {
this.y_shift = y;return this;
}
}, {
key: 'draw',
value: function draw(stave, x) {
switch (this.symbol_type) {
case Repetition.type.CODA_RIGHT:
this.drawCodaFixed(stave, x + stave.width);
break;
case Repetition.type.CODA_LEFT:
this.drawSymbolText(stave, x, 'Coda', true);
break;
case Repetition.type.SEGNO_LEFT:
this.drawSignoFixed(stave, x);
break;
case Repetition.type.SEGNO_RIGHT:
this.drawSignoFixed(stave, x + stave.width);
break;
case Repetition.type.DC:
this.drawSymbolText(stave, x, 'D.C.', false);
break;
case Repetition.type.DC_AL_CODA:
this.drawSymbolText(stave, x, 'D.C. al', true);
break;
case Repetition.type.DC_AL_FINE:
this.drawSymbolText(stave, x, 'D.C. al Fine', false);
break;
case Repetition.type.DS:
this.drawSymbolText(stave, x, 'D.S.', false);
break;
case Repetition.type.DS_AL_CODA:
this.drawSymbolText(stave, x, 'D.S. al', true);
break;
case Repetition.type.DS_AL_FINE:
this.drawSymbolText(stave, x, 'D.S. al Fine', false);
break;
case Repetition.type.FINE:
this.drawSymbolText(stave, x, 'Fine', false);
break;
default:
break;
}
return this;
}
}, {
key: 'drawCodaFixed',
value: function drawCodaFixed(stave, x) {
if (!stave.context) {
throw new Vex.RERR('NoCanvasContext', "Can't draw stave without canvas context.");
}
var y = stave.getYForTopText(stave.options.num_lines) + this.y_shift;
Glyph.renderGlyph(stave.context, this.x + x + this.x_shift, y + 25, 40, 'v4d', true);
return this;
}
}, {
key: 'drawSignoFixed',
value: function drawSignoFixed(stave, x) {
if (!stave.context) {
throw new Vex.RERR('NoCanvasContext', "Can't draw stave without canvas context.");
}
var y = stave.getYForTopText(stave.options.num_lines) + this.y_shift;
Glyph.renderGlyph(stave.context, this.x + x + this.x_shift, y + 25, 30, 'v8c', true);
return this;
}
}, {
key: 'drawSymbolText',
value: function drawSymbolText(stave, x, text, draw_coda) {
if (!stave.context) {
throw new Vex.RERR('NoCanvasContext', "Can't draw stave without canvas context.");
}
var ctx = stave.context;
ctx.save();
ctx.setFont(this.font.family, this.font.size, this.font.weight);
// Default to right symbol
var text_x = 0 + this.x_shift;
var symbol_x = x + this.x_shift;
if (this.symbol_type === Repetition.type.CODA_LEFT) {
// Offset Coda text to right of stave beginning
text_x = this.x + stave.options.vertical_bar_width;
symbol_x = text_x + ctx.measureText(text).width + 12;
} else {
// Offset Signo text to left stave end
symbol_x = this.x + x + stave.width - 5 + this.x_shift;
text_x = symbol_x - +ctx.measureText(text).width - 12;
}
var y = stave.getYForTopText(stave.options.num_lines) + this.y_shift;
if (draw_coda) {
Glyph.renderGlyph(ctx, symbol_x, y, 40, 'v4d', true);
}
ctx.fillText(text, text_x, y + 5);
ctx.restore();
return this;
}
}]);
return Repetition;
}(StaveModifier);
var StaveSection = function (_StaveModifier) {
inherits(StaveSection, _StaveModifier);
createClass(StaveSection, null, [{
key: 'CATEGORY',
get: function get() {
return 'stavesection';
}
}]);
function StaveSection(section, x, shift_y) {
classCallCheck(this, StaveSection);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(StaveSection).call(this));
_this.setWidth(16);
_this.section = section;
_this.x = x;
_this.shift_x = 0;
_this.shift_y = shift_y;
_this.font = {
family: 'sans-serif',
size: 12,
weight: 'bold'
};
return _this;
}
createClass(StaveSection, [{
key: 'getCategory',
value: function getCategory() {
return StaveSection.CATEGORY;
}
}, {
key: 'setStaveSection',
value: function setStaveSection(section) {
this.section = section;return this;
}
}, {
key: 'setShiftX',
value: function setShiftX(x) {
this.shift_x = x;return this;
}
}, {
key: 'setShiftY',
value: function setShiftY(y) {
this.shift_y = y;return this;
}
}, {
key: 'draw',
value: function draw(stave, shift_x) {
if (!stave.context) {
throw new Vex.RERR('NoContext', "Can't draw stave section without a context.");
}
var ctx = stave.context;
ctx.save();
ctx.lineWidth = 2;
ctx.setFont(this.font.family, this.font.size, this.font.weight);
var text_width = ctx.measureText('' + this.section).width;
var width = text_width + 6; // add left & right padding
if (width < 18) width = 18;
var height = 20;
// Seems to be a good default y
var y = stave.getYForTopText(3) + this.shift_y;
var x = this.x + shift_x;
ctx.beginPath();
ctx.lineWidth = 2;
ctx.rect(x, y, width, height);
ctx.stroke();
x += (width - text_width) / 2;
ctx.fillText('' + this.section, x, y + 16);
ctx.restore();
return this;
}
}]);
return StaveSection;
}(StaveModifier);
var StaveTempo = function (_StaveModifier) {
inherits(StaveTempo, _StaveModifier);
createClass(StaveTempo, null, [{
key: 'CATEGORY',
get: function get() {
return 'stavetempo';
}
}]);
function StaveTempo(tempo, x, shift_y) {
classCallCheck(this, StaveTempo);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(StaveTempo).call(this));
_this.tempo = tempo;
_this.position = Modifier.Position.ABOVE;
_this.x = x;
_this.shift_x = 10;
_this.shift_y = shift_y;
_this.font = {
family: 'times',
size: 14,
weight: 'bold'
};
_this.render_options = {
glyph_font_scale: 30 };
return _this;
}
createClass(StaveTempo, [{
key: 'getCategory',
value: function getCategory() {
return StaveTempo.CATEGORY;
}
}, {
key: 'setTempo',
value: function setTempo(tempo) {
this.tempo = tempo;return this;
}
}, {
key: 'setShiftX',
value: function setShiftX(x) {
this.shift_x = x;return this;
}
}, {
key: 'setShiftY',
value: function setShiftY(y) {
this.shift_y = y;return this;
}
}, {
key: 'draw',
value: function draw(stave, shift_x) {
if (!stave.context) {
throw new Vex.RERR('NoContext', "Can't draw stave tempo without a context.");
}
var options = this.render_options;
var scale = options.glyph_font_scale / 38;
var name = this.tempo.name;
var duration = this.tempo.duration;
var dots = this.tempo.dots;
var bpm = this.tempo.bpm;
var font = this.font;
var ctx = stave.context;
var x = this.x + this.shift_x + shift_x;
var y = stave.getYForTopText(1) + this.shift_y;
ctx.save();
if (name) {
ctx.setFont(font.family, font.size, font.weight);
ctx.fillText(name, x, y);
x += ctx.measureText(name).width;
}
if (duration && bpm) {
ctx.setFont(font.family, font.size, 'normal');
if (name) {
x += ctx.measureText(' ').width;
ctx.fillText('(', x, y);
x += ctx.measureText('(').width;
}
var code = Flow.durationToGlyph(duration);
x += 3 * scale;
Glyph.renderGlyph(ctx, x, y, options.glyph_font_scale, code.code_head);
x += code.head_width * scale;
// Draw stem and flags
if (code.stem) {
var stem_height = 30;
if (code.beam_count) stem_height += 3 * (code.beam_count - 1);
stem_height *= scale;
var y_top = y - stem_height;
ctx.fillRect(x, y_top, scale, stem_height);
if (code.flag) {
Glyph.renderGlyph(ctx, x + scale, y_top, options.glyph_font_scale, code.code_flag_upstem);
if (!dots) x += 6 * scale;
}
}
// Draw dot
for (var i = 0; i < dots; i++) {
x += 6 * scale;
ctx.beginPath();
ctx.arc(x, y + 2 * scale, 2 * scale, 0, Math.PI * 2, false);
ctx.fill();
}
ctx.fillText(' = ' + bpm + (name ? ')' : ''), x + 3 * scale, y);
}
ctx.restore();
return this;
}
}]);
return StaveTempo;
}(StaveModifier);
var TextNote = function (_Note) {
inherits(TextNote, _Note);
createClass(TextNote, null, [{
key: 'Justification',
get: function get() {
return {
LEFT: 1,
CENTER: 2,
RIGHT: 3
};
}
// Glyph data
}, {
key: 'GLYPHS',
get: function get() {
return {
'segno': {
code: 'v8c',
point: 40,
x_shift: 0,
y_shift: -10
},
'tr': {
code: 'v1f',
point: 40,
x_shift: 0,
y_shift: 0
},
'mordent_upper': {
code: 'v1e',
point: 40,
x_shift: 0,
y_shift: 0
},
'mordent_lower': {
code: 'v45',
point: 40,
x_shift: 0,
y_shift: 0
},
'f': {
code: 'vba',
point: 40,
x_shift: 0,
y_shift: 0
},
'p': {
code: 'vbf',
point: 40,
x_shift: 0,
y_shift: 0
},
'm': {
code: 'v62',
point: 40,
x_shift: 0,
y_shift: 0
},
's': {
code: 'v4a',
point: 40,
x_shift: 0,
y_shift: 0
},
'z': {
code: 'v80',
point: 40,
x_shift: 0,
y_shift: 0
},
'coda': {
code: 'v4d',
point: 40,
x_shift: 0,
y_shift: -8
},
'pedal_open': {
code: 'v36',
point: 40,
x_shift: 0,
y_shift: 0
},
'pedal_close': {
code: 'v5d',
point: 40,
x_shift: 0,
y_shift: 3
},
'caesura_straight': {
code: 'v34',
point: 40,
x_shift: 0,
y_shift: 2
},
'caesura_curved': {
code: 'v4b',
point: 40,
x_shift: 0,
y_shift: 2
},
'breath': {
code: 'v6c',
point: 40,
x_shift: 0,
y_shift: 0
},
'tick': {
code: 'v6f',
point: 50,
x_shift: 0,
y_shift: 0
},
'turn': {
code: 'v72',
point: 40,
x_shift: 0,
y_shift: 0
},
'turn_inverted': {
code: 'v33',
point: 40,
x_shift: 0,
y_shift: 0
},
// DEPRECATED - please use "mordent_upper" or "mordent_lower"
'mordent': {
code: 'v1e',
point: 40,
x_shift: 0,
y_shift: 0
}
};
}
}]);
function TextNote(text_struct) {
classCallCheck(this, TextNote);
// Note properties
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(TextNote).call(this, text_struct));
_this.text = text_struct.text;
_this.superscript = text_struct.superscript;
_this.subscript = text_struct.subscript;
_this.glyph_type = text_struct.glyph;
_this.glyph = null;
_this.font = {
family: 'Arial',
size: 12,
weight: ''
};
// Set font
if (text_struct.font) _this.font = text_struct.font;
// Determine and set initial note width. Note that the text width is
// an approximation and isn't very accurate. The only way to accurately
// measure the length of text is with `canvasContext.measureText()`
if (_this.glyph_type) {
var struct = TextNote.GLYPHS[_this.glyph_type];
if (!struct) throw new Vex.RERR('Invalid glyph type: ' + _this.glyph_type);
_this.glyph = new Glyph(struct.code, struct.point, { cache: false });
if (struct.width) {
_this.setWidth(struct.width);
} else {
_this.setWidth(_this.glyph.getMetrics().width);
}
_this.glyph_struct = struct;
} else {
_this.setWidth(Flow.textWidth(_this.text));
}
_this.line = text_struct.line || 0;
_this.smooth = text_struct.smooth || false;
_this.ignore_ticks = text_struct.ignore_ticks || false;
_this.justification = TextNote.Justification.LEFT;
return _this;
}
// Set the horizontal justification of the TextNote
createClass(TextNote, [{
key: 'setJustification',
value: function setJustification(just) {
this.justification = just;
return this;
}
// Set the Stave line on which the note should be placed
}, {
key: 'setLine',
value: function setLine(line) {
this.line = line;
return this;
}
// Pre-render formatting
}, {
key: 'preFormat',
value: function preFormat() {
if (!this.context) {
throw new Vex.RERR('NoRenderContext', "Can't measure text without rendering context.");
}
if (this.preFormatted) return;
if (this.smooth) {
this.setWidth(0);
} else {
if (this.glyph) {
// Width already set.
} else {
this.setWidth(this.context.measureText(this.text).width);
}
}
if (this.justification === TextNote.Justification.CENTER) {
this.extraLeftPx = this.width / 2;
} else if (this.justification === TextNote.Justification.RIGHT) {
this.extraLeftPx = this.width;
}
this.setPreFormatted(true);
}
// Renders the TextNote
}, {
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoCanvasContext', "Can't draw without a canvas context.");
}
if (!this.stave) {
throw new Vex.RERR('NoStave', "Can't draw without a stave.");
}
var ctx = this.context;
var x = this.getAbsoluteX();
if (this.justification === TextNote.Justification.CENTER) {
x -= this.getWidth() / 2;
} else if (this.justification === TextNote.Justification.RIGHT) {
x -= this.getWidth();
}
var y = void 0;
if (this.glyph) {
y = this.stave.getYForLine(this.line + -3);
this.glyph.render(this.context, x + this.glyph_struct.x_shift, y + this.glyph_struct.y_shift);
} else {
y = this.stave.getYForLine(this.line + -3);
ctx.save();
ctx.setFont(this.font.family, this.font.size, this.font.weight);
ctx.fillText(this.text, x, y);
// Width of the letter M gives us the approximate height of the text
var height = ctx.measureText('M').width;
// Get accurate width of text
var width = ctx.measureText(this.text).width;
// Write superscript
if (this.superscript) {
ctx.setFont(this.font.family, this.font.size / 1.3, this.font.weight);
ctx.fillText(this.superscript, x + width + 2, y - height / 2.2);
}
// Write subscript
if (this.subscript) {
ctx.setFont(this.font.family, this.font.size / 1.3, this.font.weight);
ctx.fillText(this.subscript, x + width + 2, y + height / 2.2 - 1);
}
ctx.restore();
}
}
}]);
return TextNote;
}(Note);
var StaveText = function (_StaveModifier) {
inherits(StaveText, _StaveModifier);
createClass(StaveText, null, [{
key: 'CATEGORY',
get: function get() {
return 'stavetext';
}
}]);
function StaveText(text, position, options) {
classCallCheck(this, StaveText);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(StaveText).call(this));
_this.setWidth(16);
_this.text = text;
_this.position = position;
_this.options = {
shift_x: 0,
shift_y: 0,
justification: TextNote.Justification.CENTER
};
Vex.Merge(_this.options, options);
_this.font = {
family: 'times',
size: 16,
weight: 'normal'
};
return _this;
}
createClass(StaveText, [{
key: 'getCategory',
value: function getCategory() {
return StaveText.CATEGORY;
}
}, {
key: 'setStaveText',
value: function setStaveText(text) {
this.text = text;return this;
}
}, {
key: 'setShiftX',
value: function setShiftX(x) {
this.shift_x = x;return this;
}
}, {
key: 'setShiftY',
value: function setShiftY(y) {
this.shift_y = y;return this;
}
}, {
key: 'setFont',
value: function setFont(font) {
Vex.Merge(this.font, font);
}
}, {
key: 'setText',
value: function setText(text) {
this.text = text;
}
}, {
key: 'draw',
value: function draw(stave) {
if (!stave.context) {
throw new Vex.RERR('NoContext', "Can't draw stave text without a context.");
}
var ctx = stave.context;
ctx.save();
ctx.lineWidth = 2;
ctx.setFont(this.font.family, this.font.size, this.font.weight);
var text_width = ctx.measureText('' + this.text).width;
var x = void 0;
var y = void 0;
var Position = StaveModifier.Position;
var Justification = TextNote.Justification;
switch (this.position) {
case Position.LEFT:
case Position.RIGHT:
y = (stave.getYForLine(0) + stave.getBottomLineY()) / 2 + this.options.shift_y;
if (this.position === Position.LEFT) {
x = stave.getX() - text_width - 24 + this.options.shift_x;
} else {
x = stave.getX() + stave.getWidth() + 24 + this.options.shift_x;
}
break;
case Position.ABOVE:
case Position.BELOW:
x = stave.getX() + this.options.shift_x;
if (this.options.justification === Justification.CENTER) {
x += stave.getWidth() / 2 - text_width / 2;
} else if (this.options.justification === Justification.RIGHT) {
x += stave.getWidth() - text_width;
}
if (this.position === Position.ABOVE) {
y = stave.getYForTopText(2) + this.options.shift_y;
} else {
y = stave.getYForBottomText(2) + this.options.shift_y;
}
break;
default:
throw new Vex.RERR('InvalidPosition', 'Value Must be in Modifier.Position.');
}
ctx.fillText('' + this.text, x, y + 4);
ctx.restore();
return this;
}
}]);
return StaveText;
}(StaveModifier);
// To enable logging for this class, set `Vex.Flow.Clef.DEBUG` to `true`.
function L$12() {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
if (Clef.DEBUG) Vex.L('Vex.Flow.Clef', args);
}
var Clef = function (_StaveModifier) {
inherits(Clef, _StaveModifier);
createClass(Clef, null, [{
key: 'CATEGORY',
get: function get() {
return 'clefs';
}
// Every clef name is associated with a glyph code from the font file
// and a default stave line number.
}, {
key: 'types',
get: function get() {
return {
'treble': {
code: 'v83',
line: 3
},
'bass': {
code: 'v79',
line: 1
},
'alto': {
code: 'vad',
line: 2
},
'tenor': {
code: 'vad',
line: 1
},
'percussion': {
code: 'v59',
line: 2
},
'soprano': {
code: 'vad',
line: 4
},
'mezzo-soprano': {
code: 'vad',
line: 3
},
'baritone-c': {
code: 'vad',
line: 0
},
'baritone-f': {
code: 'v79',
line: 2
},
'subbass': {
code: 'v79',
line: 0
},
'french': {
code: 'v83',
line: 4
},
'tab': {
code: 'v2f'
}
};
}
// Sizes affect the point-size of the clef.
}, {
key: 'sizes',
get: function get() {
return {
'default': 40,
'small': 32
};
}
// Annotations attach to clefs -- such as "8" for octave up or down.
}, {
key: 'annotations',
get: function get() {
return {
'8va': {
code: 'v8',
sizes: {
'default': {
point: 20,
attachments: {
'treble': {
line: -1.2,
x_shift: 11
}
}
},
'small': {
point: 18,
attachments: {
'treble': {
line: -0.4,
x_shift: 8
}
}
}
}
},
'8vb': {
code: 'v8',
sizes: {
'default': {
point: 20,
attachments: {
'treble': {
line: 6.3,
x_shift: 10
},
'bass': {
line: 4,
x_shift: 1
}
}
},
'small': {
point: 18,
attachments: {
'treble': {
line: 5.8,
x_shift: 6
},
'bass': {
line: 3.5,
x_shift: 0.5
}
}
}
}
}
};
}
// Create a new clef. The parameter `clef` must be a key from
// `Clef.types`.
}]);
function Clef(type, size, annotation) {
classCallCheck(this, Clef);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(Clef).call(this));
_this.setPosition(StaveModifier.Position.BEGIN);
_this.setType(type, size, annotation);
_this.setWidth(_this.glyph.getMetrics().width);
L$12('Creating clef:', type);
return _this;
}
createClass(Clef, [{
key: 'getCategory',
value: function getCategory() {
return Clef.CATEGORY;
}
}, {
key: 'setType',
value: function setType(type, size, annotation) {
this.type = type;
this.clef = Clef.types[type];
if (size === undefined) {
this.size = 'default';
} else {
this.size = size;
}
this.clef.point = Clef.sizes[this.size];
this.glyph = new Glyph(this.clef.code, this.clef.point);
// If an annotation, such as 8va, is specified, add it to the Clef object.
if (annotation !== undefined) {
var anno_dict = Clef.annotations[annotation];
this.annotation = {
code: anno_dict.code,
point: anno_dict.sizes[this.size].point,
line: anno_dict.sizes[this.size].attachments[this.type].line,
x_shift: anno_dict.sizes[this.size].attachments[this.type].x_shift
};
this.attachment = new Glyph(this.annotation.code, this.annotation.point);
this.attachment.metrics.x_max = 0;
this.attachment.setXShift(this.annotation.x_shift);
} else {
this.annotation = undefined;
}
return this;
}
}, {
key: 'getWidth',
value: function getWidth() {
if (this.type === 'tab' && !this.stave) {
throw new Vex.RERR('ClefError', "Can't get width without stave.");
}
return this.width;
}
}, {
key: 'setStave',
value: function setStave(stave) {
this.stave = stave;
if (this.type !== 'tab') return this;
var glyphScale = void 0;
var glyphOffset = void 0;
var numLines = this.stave.getOptions().num_lines;
switch (numLines) {
case 8:
glyphScale = 55;
glyphOffset = 14;
break;
case 7:
glyphScale = 47;
glyphOffset = 8;
break;
case 6:
glyphScale = 40;
glyphOffset = 1;
break;
case 5:
glyphScale = 30;
glyphOffset = -6;
break;
case 4:
glyphScale = 23;
glyphOffset = -12;
break;
default:
throw new Vex.RERR('ClefError', 'Invalid number of lines: ' + numLines);
}
this.glyph.setPoint(glyphScale);
this.glyph.setYShift(glyphOffset);
return this;
}
}, {
key: 'draw',
value: function draw() {
if (!this.x) throw new Vex.RERR('ClefError', "Can't draw clef without x.");
if (!this.stave) throw new Vex.RERR('ClefError', "Can't draw clef without stave.");
this.glyph.setStave(this.stave);
this.glyph.setContext(this.stave.context);
if (this.clef.line !== undefined) {
this.placeGlyphOnLine(this.glyph, this.stave, this.clef.line);
}
this.glyph.renderToStave(this.x);
if (this.annotation !== undefined) {
this.placeGlyphOnLine(this.attachment, this.stave, this.annotation.line);
this.attachment.setStave(this.stave);
this.attachment.setContext(this.stave.context);
this.attachment.renderToStave(this.x);
}
}
}]);
return Clef;
}(StaveModifier);
var KeySignature = function (_StaveModifier) {
inherits(KeySignature, _StaveModifier);
createClass(KeySignature, null, [{
key: 'CATEGORY',
get: function get() {
return 'keysignatures';
}
// Space between natural and following accidental depending
// on vertical position
}, {
key: 'accidentalSpacing',
get: function get() {
return {
'#': {
above: 6,
below: 4
},
'b': {
above: 4,
below: 7
},
'n': {
above: 3,
below: -1
},
'##': {
above: 6,
below: 4
},
'bb': {
above: 4,
below: 7
},
'db': {
above: 4,
below: 7
},
'd': {
above: 4,
below: 7
},
'bbs': {
above: 4,
below: 7
},
'++': {
above: 6,
below: 4
},
'+': {
above: 6,
below: 4
},
'+-': {
above: 6,
below: 4
},
'++-': {
above: 6,
below: 4
},
'bs': {
above: 4,
below: 10
},
'bss': {
above: 4,
below: 10
}
};
}
// Create a new Key Signature based on a `key_spec`
}]);
function KeySignature(keySpec, cancelKeySpec, alterKeySpec) {
classCallCheck(this, KeySignature);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(KeySignature).call(this));
_this.setKeySig(keySpec, cancelKeySpec, alterKeySpec);
_this.setPosition(StaveModifier.Position.BEGIN);
_this.glyphFontScale = 38; // TODO(0xFE): Should this match StaveNote?
_this.glyphs = [];
_this.xPositions = []; // relative to this.x
_this.paddingForced = false;
return _this;
}
createClass(KeySignature, [{
key: 'getCategory',
value: function getCategory() {
return KeySignature.CATEGORY;
}
// Add an accidental glyph to the `KeySignature` instance which represents
// the provided `acc`. If `nextAcc` is also provided, the appropriate
// spacing will be included in the glyph's position
}, {
key: 'convertToGlyph',
value: function convertToGlyph(acc, nextAcc) {
var accGlyphData = Flow.accidentalCodes(acc.type);
var glyph = new Glyph(accGlyphData.code, this.glyphFontScale);
// Determine spacing between current accidental and the next accidental
var extraWidth = 0;
if (acc.type === 'n' && nextAcc) {
var spacing = KeySignature.accidentalSpacing[nextAcc.type];
if (spacing) {
var isAbove = nextAcc.line >= acc.line;
extraWidth = isAbove ? spacing.above : spacing.below;
}
}
// Place the glyph on the stave
this.placeGlyphOnLine(glyph, this.stave, acc.line);
this.glyphs.push(glyph);
var xPosition = this.xPositions[this.xPositions.length - 1];
var glyphWidth = accGlyphData.width + extraWidth;
// Store the next accidental's x position
this.xPositions.push(xPosition + glyphWidth);
// Expand size of key signature
this.width += glyphWidth;
}
// Cancel out a key signature provided in the `spec` parameter. This will
// place appropriate natural accidentals before the key signature.
}, {
key: 'cancelKey',
value: function cancelKey(spec) {
this.formatted = false;
this.cancelKeySpec = spec;
return this;
}
}, {
key: 'convertToCancelAccList',
value: function convertToCancelAccList(spec) {
// Get the accidental list for the cancelled key signature
var cancel_accList = Flow.keySignature(spec);
// If the cancelled key has a different accidental type, ie: # vs b
var different_types = this.accList.length > 0 && cancel_accList.length > 0 && cancel_accList[0].type !== this.accList[0].type;
// Determine how many naturals needed to add
var naturals = different_types ? cancel_accList.length : cancel_accList.length - this.accList.length;
// Return if no naturals needed
if (naturals < 1) return;
// Get the line position for each natural
var cancelled = [];
for (var i = 0; i < naturals; i++) {
var index = i;
if (!different_types) {
index = cancel_accList.length - naturals + i;
}
var acc = cancel_accList[index];
cancelled.push({ type: 'n', line: acc.line });
}
// Combine naturals with main accidental list for the key signature
this.accList = cancelled.concat(this.accList);
}
// Deprecated
}, {
key: 'addToStave',
value: function addToStave(stave) {
this.paddingForced = true;
stave.addModifier(this);
return this;
}
// Apply the accidental staff line placement based on the `clef` and
// the accidental `type` for the key signature ('# or 'b').
}, {
key: 'convertAccLines',
value: function convertAccLines(clef, type) {
var offset = 0.0; // if clef === "treble"
var customLines = void 0; // when clef doesn't follow treble key sig shape
switch (clef) {
// Treble & Subbass both have offsets of 0, so are not included.
case 'soprano':
if (type === '#') customLines = [2.5, 0.5, 2, 0, 1.5, -0.5, 1];else offset = -1;
break;
case 'mezzo-soprano':
if (type === 'b') customLines = [0, 2, 0.5, 2.5, 1, 3, 1.5];else offset = 1.5;
break;
case 'alto':
offset = 0.5;
break;
case 'tenor':
if (type === '#') customLines = [3, 1, 2.5, 0.5, 2, 0, 1.5];else offset = -0.5;
break;
case 'baritone-f':
case 'baritone-c':
if (type === 'b') customLines = [0.5, 2.5, 1, 3, 1.5, 3.5, 2];else offset = 2;
break;
case 'bass':
case 'french':
offset = 1;
break;
default:
break;
}
// If there's a special case, assign those lines/spaces:
var i = void 0;
if (typeof customLines !== 'undefined') {
for (i = 0; i < this.accList.length; ++i) {
this.accList[i].line = customLines[i];
}
} else if (offset !== 0) {
for (i = 0; i < this.accList.length; ++i) {
this.accList[i].line += offset;
}
}
}
}, {
key: 'getPadding',
value: function getPadding(index) {
if (!this.formatted) this.format();
return this.glyphs.length === 0 || !this.paddingForced && index < 2 ? 0 : this.padding;
}
}, {
key: 'getWidth',
value: function getWidth() {
if (!this.formatted) this.format();
return this.width;
}
}, {
key: 'setKeySig',
value: function setKeySig(keySpec, cancelKeySpec, alterKeySpec) {
this.formatted = false;
this.keySpec = keySpec;
this.cancelKeySpec = cancelKeySpec;
this.alterKeySpec = alterKeySpec;
return this;
}
// Alter the accidentals of a key spec one by one.
// Each alteration is a new accidental that replaces the
// original accidental (or the canceled one).
}, {
key: 'alterKey',
value: function alterKey(alterKeySpec) {
this.formatted = false;
this.alterKeySpec = alterKeySpec;
return this;
}
}, {
key: 'convertToAlterAccList',
value: function convertToAlterAccList(alterKeySpec) {
var max = Math.min(alterKeySpec.length, this.accList.length);
for (var i = 0; i < max; ++i) {
if (alterKeySpec[i]) {
this.accList[i].type = alterKeySpec[i];
}
}
}
}, {
key: 'format',
value: function format() {
if (!this.stave) {
throw new Vex.RERR('KeySignatureError', "Can't draw key signature without stave.");
}
this.width = 0;
this.glyphs = [];
this.xPositions = [0]; // initialize with initial x position
this.accList = Flow.keySignature(this.keySpec);
if (this.cancelKeySpec) {
this.convertToCancelAccList(this.cancelKeySpec);
}
var firstAccidentalType = this.accList.length > 0 ? this.accList[0].type : null;
if (this.alterKeySpec) {
this.convertToAlterAccList(this.alterKeySpec);
}
if (this.accList.length > 0) {
this.convertAccLines(this.stave.clef, firstAccidentalType);
for (var i = 0; i < this.accList.length; ++i) {
this.convertToGlyph(this.accList[i], this.accList[i + 1]);
}
}
this.formatted = true;
}
}, {
key: 'draw',
value: function draw() {
if (!this.x) {
throw new Vex.RERR('KeySignatureError', "Can't draw key signature without x.");
}
if (!this.stave) {
throw new Vex.RERR('KeySignatureError', "Can't draw key signature without stave.");
}
if (!this.formatted) this.format();
for (var i = 0; i < this.glyphs.length; i++) {
var glyph = this.glyphs[i];
var x = this.x + this.xPositions[i];
glyph.setStave(this.stave);
glyph.setContext(this.stave.context);
glyph.renderToStave(x);
}
}
}]);
return KeySignature;
}(StaveModifier);
var assertIsValidFraction = function assertIsValidFraction(timeSpec) {
var numbers = timeSpec.split('/').filter(function (number) {
return number !== '';
});
if (numbers.length !== 2) {
throw new Vex.RERR('BadTimeSignature', 'Invalid time spec: ' + timeSpec + '. Must be in the form "<numerator>/<denominator>"');
}
numbers.forEach(function (number) {
if (isNaN(Number(number))) {
throw new Vex.RERR('BadTimeSignature', 'Invalid time spec: ' + timeSpec + '. Must contain two valid numbers.');
}
});
};
var TimeSignature = function (_StaveModifier) {
inherits(TimeSignature, _StaveModifier);
createClass(TimeSignature, null, [{
key: 'CATEGORY',
get: function get() {
return 'timesignatures';
}
}, {
key: 'glyphs',
get: function get() {
return {
'C': {
code: 'v41',
point: 40,
line: 2
},
'C|': {
code: 'vb6',
point: 40,
line: 2
}
};
}
}]);
function TimeSignature() {
var timeSpec = arguments.length <= 0 || arguments[0] === undefined ? null : arguments[0];
var customPadding = arguments.length <= 1 || arguments[1] === undefined ? 15 : arguments[1];
classCallCheck(this, TimeSignature);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(TimeSignature).call(this));
if (timeSpec === null) return possibleConstructorReturn(_this);
var padding = customPadding;
_this.point = 40;
_this.topLine = 2;
_this.bottomLine = 4;
_this.setPosition(StaveModifier.Position.BEGIN);
_this.setTimeSig(timeSpec);
_this.setWidth(_this.timeSig.glyph.getMetrics().width);
_this.setPadding(padding);
return _this;
}
createClass(TimeSignature, [{
key: 'getCategory',
value: function getCategory() {
return TimeSignature.CATEGORY;
}
}, {
key: 'parseTimeSpec',
value: function parseTimeSpec(timeSpec) {
if (timeSpec === 'C' || timeSpec === 'C|') {
var _TimeSignature$glyphs = TimeSignature.glyphs[timeSpec];
var line = _TimeSignature$glyphs.line;
var code = _TimeSignature$glyphs.code;
var point = _TimeSignature$glyphs.point;
return {
line: line,
num: false,
glyph: new Glyph(code, point)
};
}
assertIsValidFraction(timeSpec);
var _timeSpec$split$map = timeSpec.split('/').map(function (number) {
return number.split('');
});
var _timeSpec$split$map2 = slicedToArray(_timeSpec$split$map, 2);
var topDigits = _timeSpec$split$map2[0];
var botDigits = _timeSpec$split$map2[1];
return {
num: true,
glyph: this.makeTimeSignatureGlyph(topDigits, botDigits)
};
}
}, {
key: 'makeTimeSignatureGlyph',
value: function makeTimeSignatureGlyph(topDigits, botDigits) {
var glyph = new Glyph('v0', this.point);
glyph.topGlyphs = [];
glyph.botGlyphs = [];
var topWidth = 0;
for (var i = 0; i < topDigits.length; ++i) {
var num = topDigits[i];
var topGlyph = new Glyph('v' + num, this.point);
glyph.topGlyphs.push(topGlyph);
topWidth += topGlyph.getMetrics().width;
}
var botWidth = 0;
for (var _i = 0; _i < botDigits.length; ++_i) {
var _num = botDigits[_i];
var botGlyph = new Glyph('v' + _num, this.point);
glyph.botGlyphs.push(botGlyph);
botWidth += botGlyph.getMetrics().width;
}
var width = topWidth > botWidth ? topWidth : botWidth;
var xMin = glyph.getMetrics().x_min;
glyph.getMetrics = function () {
return {
x_min: xMin,
x_max: xMin + width,
width: width
};
};
var topStartX = (width - topWidth) / 2.0;
var botStartX = (width - botWidth) / 2.0;
var that = this;
glyph.renderToStave = function renderToStave(x) {
var start_x = x + topStartX;
for (var _i2 = 0; _i2 < this.topGlyphs.length; ++_i2) {
var _glyph = this.topGlyphs[_i2];
Glyph.renderOutline(this.context, _glyph.metrics.outline, _glyph.scale, start_x + _glyph.x_shift, this.stave.getYForLine(that.topLine) + 1);
start_x += _glyph.getMetrics().width;
}
start_x = x + botStartX;
for (var _i3 = 0; _i3 < this.botGlyphs.length; ++_i3) {
var _glyph2 = this.botGlyphs[_i3];
that.placeGlyphOnLine(_glyph2, this.stave, _glyph2.line);
Glyph.renderOutline(this.context, _glyph2.metrics.outline, _glyph2.scale, start_x + _glyph2.x_shift, this.stave.getYForLine(that.bottomLine) + 1);
start_x += _glyph2.getMetrics().width;
}
};
return glyph;
}
}, {
key: 'getTimeSig',
value: function getTimeSig() {
return this.timeSig;
}
}, {
key: 'setTimeSig',
value: function setTimeSig(timeSpec) {
this.timeSig = this.parseTimeSpec(timeSpec);
return this;
}
}, {
key: 'draw',
value: function draw() {
if (!this.x) {
throw new Vex.RERR('TimeSignatureError', "Can't draw time signature without x.");
}
if (!this.stave) {
throw new Vex.RERR('TimeSignatureError', "Can't draw time signature without stave.");
}
this.timeSig.glyph.setStave(this.stave);
this.timeSig.glyph.setContext(this.stave.context);
this.placeGlyphOnLine(this.timeSig.glyph, this.stave, this.timeSig.line);
this.timeSig.glyph.renderToStave(this.x);
}
}]);
return TimeSignature;
}(StaveModifier);
var Volta = function (_StaveModifier) {
inherits(Volta, _StaveModifier);
createClass(Volta, null, [{
key: 'CATEGORY',
get: function get() {
return 'voltas';
}
}, {
key: 'type',
get: function get() {
return {
NONE: 1,
BEGIN: 2,
MID: 3,
END: 4,
BEGIN_END: 5
};
}
}]);
function Volta(type, number, x, y_shift) {
classCallCheck(this, Volta);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(Volta).call(this));
_this.volta = type;
_this.x = x;
_this.y_shift = y_shift;
_this.number = number;
_this.font = {
family: 'sans-serif',
size: 9,
weight: 'bold'
};
return _this;
}
createClass(Volta, [{
key: 'getCategory',
value: function getCategory() {
return Volta.CATEGORY;
}
}, {
key: 'setShiftY',
value: function setShiftY(y) {
this.y_shift = y;return this;
}
}, {
key: 'draw',
value: function draw(stave, x) {
if (!stave.context) {
throw new Vex.RERR('NoCanvasContext', "Can't draw stave without canvas context.");
}
var ctx = stave.context;
var width = stave.width;
var top_y = stave.getYForTopText(stave.options.num_lines) + this.y_shift;
var vert_height = 1.5 * stave.options.spacing_between_lines_px;
switch (this.volta) {
case Volta.type.BEGIN:
ctx.fillRect(this.x + x, top_y, 1, vert_height);
break;
case Volta.type.END:
width -= 5;
ctx.fillRect(this.x + x + width, top_y, 1, vert_height);
break;
case Volta.type.BEGIN_END:
width -= 3;
ctx.fillRect(this.x + x, top_y, 1, vert_height);
ctx.fillRect(this.x + x + width, top_y, 1, vert_height);
break;
default:
break;
}
// If the beginning of a volta, draw measure number
if (this.volta === Volta.type.BEGIN || this.volta === Volta.type.BEGIN_END) {
ctx.save();
ctx.setFont(this.font.family, this.font.size, this.font.weight);
ctx.fillText(this.number, this.x + x + 5, top_y + 15);
ctx.restore();
}
ctx.fillRect(this.x + x, top_y, width, 1);
return this;
}
}]);
return Volta;
}(StaveModifier);
var THICKNESS = Flow.STAVE_LINE_THICKNESS > 1 ? Flow.STAVE_LINE_THICKNESS : 0;
var Stave = function () {
function Stave(x, y, width, options) {
classCallCheck(this, Stave);
this.x = x;
this.y = y;
this.width = width;
this.formatted = false;
this.start_x = x + 5;
this.end_x = x + width;
this.context = null;
this.modifiers = []; // stave modifiers (clef, key, time, barlines, coda, segno, etc.)
this.measure = 0;
this.clef = 'treble';
this.font = {
family: 'sans-serif',
size: 8,
weight: ''
};
this.options = {
vertical_bar_width: 10, // Width around vertical bar end-marker
glyph_spacing_px: 10,
num_lines: 5,
fill_style: '#999999',
left_bar: true, // draw vertical bar on left
right_bar: true, // draw vertical bar on right
spacing_between_lines_px: 10, // in pixels
space_above_staff_ln: 4, // in staff lines
space_below_staff_ln: 4, // in staff lines
top_text_position: 1 };
this.bounds = { x: this.x, y: this.y, w: this.width, h: 0 };
Vex.Merge(this.options, options);
this.resetLines();
var BARTYPE = Barline.type;
// beg bar
this.addModifier(new Barline(this.options.left_bar ? BARTYPE.SINGLE : BARTYPE.NONE));
// end bar
this.addEndModifier(new Barline(this.options.right_bar ? BARTYPE.SINGLE : BARTYPE.NONE));
}
createClass(Stave, [{
key: 'resetLines',
value: function resetLines() {
this.options.line_config = [];
for (var i = 0; i < this.options.num_lines; i++) {
this.options.line_config.push({ visible: true });
}
this.height = (this.options.num_lines + this.options.space_above_staff_ln) * this.options.spacing_between_lines_px;
this.options.bottom_text_position = this.options.num_lines + 1;
}
}, {
key: 'getOptions',
value: function getOptions() {
return this.options;
}
}, {
key: 'setNoteStartX',
value: function setNoteStartX(x) {
if (!this.formatted) this.format();
this.start_x = x;
return this;
}
}, {
key: 'getNoteStartX',
value: function getNoteStartX() {
if (!this.formatted) this.format();
return this.start_x;
}
}, {
key: 'getNoteEndX',
value: function getNoteEndX() {
if (!this.formatted) this.format();
return this.end_x;
}
}, {
key: 'getTieStartX',
value: function getTieStartX() {
return this.start_x;
}
}, {
key: 'getTieEndX',
value: function getTieEndX() {
return this.x + this.width;
}
}, {
key: 'setContext',
value: function setContext(context) {
this.context = context;return this;
}
}, {
key: 'getContext',
value: function getContext() {
return this.context;
}
}, {
key: 'getX',
value: function getX() {
return this.x;
}
}, {
key: 'getNumLines',
value: function getNumLines() {
return this.options.num_lines;
}
}, {
key: 'setNumLines',
value: function setNumLines(lines) {
this.options.num_lines = parseInt(lines, 10);
this.resetLines();
return this;
}
}, {
key: 'setY',
value: function setY(y) {
this.y = y;return this;
}
}, {
key: 'setX',
value: function setX(x) {
var shift = x - this.x;
this.formatted = false;
this.x = x;
this.start_x += shift;
this.end_x += shift;
for (var i = 0; i < this.modifiers.length; i++) {
var mod = this.modifiers[i];
if (mod.x !== undefined) {
mod.x += shift;
}
}
return this;
}
}, {
key: 'setWidth',
value: function setWidth(width) {
this.formatted = false;
this.width = width;
this.end_x = this.x + width;
// reset the x position of the end barline (TODO(0xfe): This makes no sense)
// this.modifiers[1].setX(this.end_x);
return this;
}
}, {
key: 'getWidth',
value: function getWidth() {
return this.width;
}
}, {
key: 'setMeasure',
value: function setMeasure(measure) {
this.measure = measure;return this;
}
/**
* Gets the pixels to shift from the beginning of the stave
* following the modifier at the provided index
* @param {Number} index The index from which to determine the shift
* @return {Number} The amount of pixels shifted
*/
}, {
key: 'getModifierXShift',
value: function getModifierXShift() {
var index = arguments.length <= 0 || arguments[0] === undefined ? 0 : arguments[0];
if (typeof index !== 'number') {
throw new Vex.RERR('InvalidIndex', 'Must be of number type');
}
if (!this.formatted) this.format();
if (this.getModifiers(StaveModifier.Position.BEGIN).length === 1) {
return 0;
}
var start_x = this.start_x - this.x;
var begBarline = this.modifiers[0];
if (begBarline.getType() === Barline.type.REPEAT_BEGIN && start_x > begBarline.getWidth()) {
start_x -= begBarline.getWidth();
}
return start_x;
}
// Coda & Segno Symbol functions
}, {
key: 'setRepetitionTypeLeft',
value: function setRepetitionTypeLeft(type, y) {
this.modifiers.push(new Repetition(type, this.x, y));
return this;
}
}, {
key: 'setRepetitionTypeRight',
value: function setRepetitionTypeRight(type, y) {
this.modifiers.push(new Repetition(type, this.x, y));
return this;
}
// Volta functions
}, {
key: 'setVoltaType',
value: function setVoltaType(type, number_t, y) {
this.modifiers.push(new Volta(type, number_t, this.x, y));
return this;
}
// Section functions
}, {
key: 'setSection',
value: function setSection(section, y) {
this.modifiers.push(new StaveSection(section, this.x, y));
return this;
}
// Tempo functions
}, {
key: 'setTempo',
value: function setTempo(tempo, y) {
this.modifiers.push(new StaveTempo(tempo, this.x, y));
return this;
}
// Text functions
}, {
key: 'setText',
value: function setText(text, position, options) {
this.modifiers.push(new StaveText(text, position, options));
return this;
}
}, {
key: 'getHeight',
value: function getHeight() {
return this.height;
}
}, {
key: 'getSpacingBetweenLines',
value: function getSpacingBetweenLines() {
return this.options.spacing_between_lines_px;
}
}, {
key: 'getBoundingBox',
value: function getBoundingBox() {
return new BoundingBox(this.x, this.y, this.width, this.getBottomY() - this.y);
}
}, {
key: 'getBottomY',
value: function getBottomY() {
var options = this.options;
var spacing = options.spacing_between_lines_px;
var score_bottom = this.getYForLine(options.num_lines) + options.space_below_staff_ln * spacing;
return score_bottom;
}
}, {
key: 'getBottomLineY',
value: function getBottomLineY() {
return this.getYForLine(this.options.num_lines);
}
}, {
key: 'getYForLine',
value: function getYForLine(line) {
var options = this.options;
var spacing = options.spacing_between_lines_px;
var headroom = options.space_above_staff_ln;
var y = this.y + (line * spacing + headroom * spacing) - THICKNESS / 2;
return y;
}
}, {
key: 'getLineForY',
value: function getLineForY(y) {
// Does the reverse of getYForLine - somewhat dumb and just calls
// getYForLine until the right value is reaches
var options = this.options;
var spacing = options.spacing_between_lines_px;
var headroom = options.space_above_staff_ln;
return (y - this.y + THICKNESS / 2) / spacing - headroom;
}
}, {
key: 'getYForTopText',
value: function getYForTopText(line) {
var l = line || 0;
return this.getYForLine(-l - this.options.top_text_position);
}
}, {
key: 'getYForBottomText',
value: function getYForBottomText(line) {
var l = line || 0;
return this.getYForLine(this.options.bottom_text_position + l);
}
}, {
key: 'getYForNote',
value: function getYForNote(line) {
var options = this.options;
var spacing = options.spacing_between_lines_px;
var headroom = options.space_above_staff_ln;
var y = this.y + headroom * spacing + 5 * spacing - line * spacing;
return y;
}
}, {
key: 'getYForGlyphs',
value: function getYForGlyphs() {
return this.getYForLine(3);
}
}, {
key: 'addModifier',
value: function addModifier(modifier, position) {
if (position !== undefined) {
modifier.setPosition(position);
}
modifier.setStave(this);
this.formatted = false;
this.modifiers.push(modifier);
return this;
}
}, {
key: 'addEndModifier',
value: function addEndModifier(modifier) {
this.addModifier(modifier, StaveModifier.Position.END);
return this;
}
// Bar Line functions
}, {
key: 'setBegBarType',
value: function setBegBarType(type) {
// Only valid bar types at beginning of stave is none, single or begin repeat
var _Barline$type = Barline.type;
var SINGLE = _Barline$type.SINGLE;
var REPEAT_BEGIN = _Barline$type.REPEAT_BEGIN;
var NONE = _Barline$type.NONE;
if (type === SINGLE || type === REPEAT_BEGIN || type === NONE) {
this.modifiers[0].setType(type);
this.formatted = false;
}
return this;
}
}, {
key: 'setEndBarType',
value: function setEndBarType(type) {
// Repeat end not valid at end of stave
if (type !== Barline.type.REPEAT_BEGIN) {
this.modifiers[1].setType(type);
this.formatted = false;
}
return this;
}
}, {
key: 'setClef',
value: function setClef(clefSpec, size, annotation, position) {
if (position === undefined) {
position = StaveModifier.Position.BEGIN;
}
this.clef = clefSpec;
var clefs = this.getModifiers(position, Clef.CATEGORY);
if (clefs.length === 0) {
this.addClef(clefSpec, size, annotation, position);
} else {
clefs[0].setType(clefSpec, size, annotation);
}
return this;
}
}, {
key: 'setEndClef',
value: function setEndClef(clefSpec, size, annotation) {
this.setClef(clefSpec, size, annotation, StaveModifier.Position.END);
return this;
}
}, {
key: 'setKeySignature',
value: function setKeySignature(keySpec, cancelKeySpec, position) {
if (position === undefined) {
position = StaveModifier.Position.BEGIN;
}
var keySignatures = this.getModifiers(position, KeySignature.CATEGORY);
if (keySignatures.length === 0) {
this.addKeySignature(keySpec, cancelKeySpec, position);
} else {
keySignatures[0].setKeySig(keySpec, cancelKeySpec);
}
return this;
}
}, {
key: 'setEndKeySignature',
value: function setEndKeySignature(keySpec, cancelKeySpec) {
this.setKeySignature(keySpec, cancelKeySpec, StaveModifier.Position.END);
return this;
}
}, {
key: 'setTimeSignature',
value: function setTimeSignature(timeSpec, customPadding, position) {
if (position === undefined) {
position = StaveModifier.Position.BEGIN;
}
var timeSignatures = this.getModifiers(position, TimeSignature.CATEGORY);
if (timeSignatures.length === 0) {
this.addTimeSignature(timeSpec, customPadding, position);
} else {
timeSignatures[0].setTimeSig(timeSpec);
}
return this;
}
}, {
key: 'setEndTimeSignature',
value: function setEndTimeSignature(timeSpec, customPadding) {
this.setTimeSignature(timeSpec, customPadding, StaveModifier.Position.END);
return this;
}
}, {
key: 'addKeySignature',
value: function addKeySignature(keySpec, cancelKeySpec, position) {
this.addModifier(new KeySignature(keySpec, cancelKeySpec), position);
return this;
}
}, {
key: 'addClef',
value: function addClef(clef, size, annotation, position) {
if (position === undefined || position === StaveModifier.Position.BEGIN) {
this.clef = clef;
}
this.addModifier(new Clef(clef, size, annotation), position);
return this;
}
}, {
key: 'addEndClef',
value: function addEndClef(clef, size, annotation) {
this.addClef(clef, size, annotation, StaveModifier.Position.END);
return this;
}
}, {
key: 'addTimeSignature',
value: function addTimeSignature(timeSpec, customPadding, position) {
this.addModifier(new TimeSignature(timeSpec, customPadding), position);
return this;
}
}, {
key: 'addEndTimeSignature',
value: function addEndTimeSignature(timeSpec, customPadding) {
this.addTimeSignature(timeSpec, customPadding, StaveModifier.Position.END);
return this;
}
// Deprecated
}, {
key: 'addTrebleGlyph',
value: function addTrebleGlyph() {
this.addClef('treble');
return this;
}
}, {
key: 'getModifiers',
value: function getModifiers(position, category) {
if (position === undefined) return this.modifiers;
return this.modifiers.filter(function (modifier) {
return position === modifier.getPosition() && (category === undefined || category === modifier.getCategory());
});
}
}, {
key: 'sortByCategory',
value: function sortByCategory(items, order) {
for (var i = items.length - 1; i >= 0; i--) {
for (var j = 0; j < i; j++) {
if (order[items[j].getCategory()] > order[items[j + 1].getCategory()]) {
var temp = items[j];
items[j] = items[j + 1];
items[j + 1] = temp;
}
}
}
}
}, {
key: 'format',
value: function format() {
var begBarline = this.modifiers[0];
var endBarline = this.modifiers[1];
var begModifiers = this.getModifiers(StaveModifier.Position.BEGIN);
var endModifiers = this.getModifiers(StaveModifier.Position.END);
this.sortByCategory(begModifiers, {
barlines: 0, clefs: 1, keysignatures: 2, timesignatures: 3
});
this.sortByCategory(endModifiers, {
timesignatures: 0, keysignatures: 1, barlines: 2, clefs: 3
});
if (begModifiers.length > 1 && begBarline.getType() === Barline.type.REPEAT_BEGIN) {
begModifiers.push(begModifiers.splice(0, 1)[0]);
begModifiers.splice(0, 0, new Barline(Barline.type.SINGLE));
}
if (endModifiers.indexOf(endBarline) > 0) {
endModifiers.splice(0, 0, new Barline(Barline.type.NONE));
}
var width = void 0;
var padding = void 0;
var modifier = void 0;
var offset = 0;
var x = this.x;
for (var i = 0; i < begModifiers.length; i++) {
modifier = begModifiers[i];
padding = modifier.getPadding(i + offset);
width = modifier.getWidth();
x += padding;
modifier.setX(x);
x += width;
if (padding + width === 0) offset--;
}
this.start_x = x;
x = this.x + this.width;
for (var _i = 0; _i < endModifiers.length; _i++) {
modifier = endModifiers[_i];
x -= modifier.getPadding(_i);
if (_i !== 0) {
x -= modifier.getWidth();
}
modifier.setX(x);
if (_i === 0) {
x -= modifier.getWidth();
}
}
this.end_x = endModifiers.length === 1 ? this.x + this.width : x;
this.formatted = true;
}
/**
* All drawing functions below need the context to be set.
*/
}, {
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoCanvasContext', "Can't draw stave without canvas context.");
}
if (!this.formatted) this.format();
var num_lines = this.options.num_lines;
var width = this.width;
var x = this.x;
var y = void 0;
// Render lines
for (var line = 0; line < num_lines; line++) {
y = this.getYForLine(line);
this.context.save();
this.context.setFillStyle(this.options.fill_style);
this.context.setStrokeStyle(this.options.fill_style);
if (this.options.line_config[line].visible) {
this.context.fillRect(x, y, width, Flow.STAVE_LINE_THICKNESS);
}
this.context.restore();
}
// Draw the modifiers (bar lines, coda, segno, repeat brackets, etc.)
for (var i = 0; i < this.modifiers.length; i++) {
// Only draw modifier if it has a draw function
if (typeof this.modifiers[i].draw === 'function') {
this.modifiers[i].draw(this, this.getModifierXShift(i));
}
}
// Render measure numbers
if (this.measure > 0) {
this.context.save();
this.context.setFont(this.font.family, this.font.size, this.font.weight);
var text_width = this.context.measureText('' + this.measure).width;
y = this.getYForTopText(0) + 3;
this.context.fillText('' + this.measure, this.x - text_width / 2, y);
this.context.restore();
}
return this;
}
// Draw Simple barlines for backward compatability
// Do not delete - draws the beginning bar of the stave
}, {
key: 'drawVertical',
value: function drawVertical(x, isDouble) {
this.drawVerticalFixed(this.x + x, isDouble);
}
}, {
key: 'drawVerticalFixed',
value: function drawVerticalFixed(x, isDouble) {
if (!this.context) {
throw new Vex.RERR('NoCanvasContext', "Can't draw stave without canvas context.");
}
var top_line = this.getYForLine(0);
var bottom_line = this.getYForLine(this.options.num_lines - 1);
if (isDouble) {
this.context.fillRect(x - 3, top_line, 1, bottom_line - top_line + 1);
}
this.context.fillRect(x, top_line, 1, bottom_line - top_line + 1);
}
}, {
key: 'drawVerticalBar',
value: function drawVerticalBar(x) {
this.drawVerticalBarFixed(this.x + x, false);
}
}, {
key: 'drawVerticalBarFixed',
value: function drawVerticalBarFixed(x) {
if (!this.context) {
throw new Vex.RERR('NoCanvasContext', "Can't draw stave without canvas context.");
}
var top_line = this.getYForLine(0);
var bottom_line = this.getYForLine(this.options.num_lines - 1);
this.context.fillRect(x, top_line, 1, bottom_line - top_line + 1);
}
/**
* Get the current configuration for the Stave.
* @return {Array} An array of configuration objects.
*/
}, {
key: 'getConfigForLines',
value: function getConfigForLines() {
return this.options.line_config;
}
/**
* Configure properties of the lines in the Stave
* @param line_number The index of the line to configure.
* @param line_config An configuration object for the specified line.
* @throws Vex.RERR "StaveConfigError" When the specified line number is out of
* range of the number of lines specified in the constructor.
*/
}, {
key: 'setConfigForLine',
value: function setConfigForLine(line_number, line_config) {
if (line_number >= this.options.num_lines || line_number < 0) {
throw new Vex.RERR('StaveConfigError', 'The line number must be within the range of the number of lines in the Stave.');
}
if (line_config.visible === undefined) {
throw new Vex.RERR('StaveConfigError', "The line configuration object is missing the 'visible' property.");
}
if (typeof line_config.visible !== 'boolean') {
throw new Vex.RERR('StaveConfigError', "The line configuration objects 'visible' property must be true or false.");
}
this.options.line_config[line_number] = line_config;
return this;
}
/**
* Set the staff line configuration array for all of the lines at once.
* @param lines_configuration An array of line configuration objects. These objects
* are of the same format as the single one passed in to setLineConfiguration().
* The caller can set null for any line config entry if it is desired that the default be used
* @throws Vex.RERR "StaveConfigError" When the lines_configuration array does not have
* exactly the same number of elements as the num_lines configuration object set in
* the constructor.
*/
}, {
key: 'setConfigForLines',
value: function setConfigForLines(lines_configuration) {
if (lines_configuration.length !== this.options.num_lines) {
throw new Vex.RERR('StaveConfigError', 'The length of the lines configuration array must match the number of lines in the Stave');
}
// Make sure the defaults are present in case an incomplete set of
// configuration options were supplied.
for (var line_config in lines_configuration) {
// Allow 'null' to be used if the caller just wants the default for a particular node.
if (!lines_configuration[line_config]) {
lines_configuration[line_config] = this.options.line_config[line_config];
}
Vex.Merge(this.options.line_config[line_config], lines_configuration[line_config]);
}
this.options.line_config = lines_configuration;
return this;
}
}]);
return Stave;
}();
var TabStave = function (_Stave) {
inherits(TabStave, _Stave);
function TabStave(x, y, width, options) {
classCallCheck(this, TabStave);
var tab_options = {
spacing_between_lines_px: 13,
num_lines: 6,
top_text_position: 1
};
Vex.Merge(tab_options, options);
return possibleConstructorReturn(this, Object.getPrototypeOf(TabStave).call(this, x, y, width, tab_options));
}
createClass(TabStave, [{
key: 'getYForGlyphs',
value: function getYForGlyphs() {
return this.getYForLine(2.5);
}
// Deprecated
}, {
key: 'addTabGlyph',
value: function addTabGlyph() {
this.addClef('tab');
return this;
}
}]);
return TabStave;
}(Stave);
// Gets the unused strings grouped together if consecutive.
//
// Parameters:
// * num_lines - The number of lines
// * strings_used - An array of numbers representing which strings have fret positions
function getUnusedStringGroups(num_lines, strings_used) {
var stem_through = [];
var group = [];
for (var string = 1; string <= num_lines; string++) {
var is_used = strings_used.indexOf(string) > -1;
if (!is_used) {
group.push(string);
} else {
stem_through.push(group);
group = [];
}
}
if (group.length > 0) stem_through.push(group);
return stem_through;
}
// Gets groups of points that outline the partial stem lines
// between fret positions
//
// Parameters:
// * stem_Y - The `y` coordinate the stem is located on
// * unused_strings - An array of groups of unused strings
// * stave - The stave to use for reference
// * stem_direction - The direction of the stem
function getPartialStemLines(stem_y, unused_strings, stave, stem_direction) {
var up_stem = stem_direction !== 1;
var down_stem = stem_direction !== -1;
var line_spacing = stave.getSpacingBetweenLines();
var total_lines = stave.getNumLines();
var stem_lines = [];
unused_strings.forEach(function (strings) {
var containsLastString = strings.indexOf(total_lines) > -1;
var containsFirstString = strings.indexOf(1) > -1;
if (up_stem && containsFirstString || down_stem && containsLastString) {
return;
}
// If there's only one string in the group, push a duplicate value.
// We do this because we need 2 strings to convert into upper/lower y
// values.
if (strings.length === 1) {
strings.push(strings[0]);
}
var line_ys = [];
// Iterate through each group string and store it's y position
strings.forEach(function (string, index, strings) {
var isTopBound = string === 1;
var isBottomBound = string === total_lines;
// Get the y value for the appropriate staff line,
// we adjust for a 0 index array, since string numbers are index 1
var y = stave.getYForLine(string - 1);
// Unless the string is the first or last, add padding to each side
// of the line
if (index === 0 && !isTopBound) {
y -= line_spacing / 2 - 1;
} else if (index === strings.length - 1 && !isBottomBound) {
y += line_spacing / 2 - 1;
}
// Store the y value
line_ys.push(y);
// Store a subsequent y value connecting this group to the main
// stem above/below the stave if it's the top/bottom string
if (stem_direction === 1 && isTopBound) {
line_ys.push(stem_y - 2);
} else if (stem_direction === -1 && isBottomBound) {
line_ys.push(stem_y + 2);
}
});
// Add the sorted y values to the
stem_lines.push(line_ys.sort(function (a, b) {
return a - b;
}));
});
return stem_lines;
}
var TabNote = function (_StemmableNote) {
inherits(TabNote, _StemmableNote);
createClass(TabNote, null, [{
key: 'CATEGORY',
get: function get() {
return 'tabnotes';
}
// Initialize the TabNote with a `tab_struct` full of properties
// and whether to `draw_stem` when rendering the note
}]);
function TabNote(tab_struct, draw_stem) {
classCallCheck(this, TabNote);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(TabNote).call(this, tab_struct));
_this.ghost = false; // Renders parenthesis around notes
// Note properties
//
// The fret positions in the note. An array of `{ str: X, fret: X }`
_this.positions = tab_struct.positions;
// Render Options
Vex.Merge(_this.render_options, {
// font size for note heads and rests
glyph_font_scale: 30,
// Flag to draw a stem
draw_stem: draw_stem,
// Flag to draw dot modifiers
draw_dots: draw_stem,
// Flag to extend the main stem through the stave and fret positions
draw_stem_through_stave: false
});
_this.glyph = Flow.durationToGlyph(_this.duration, _this.noteType);
if (!_this.glyph) {
throw new Vex.RuntimeError('BadArguments', 'Invalid note initialization data (No glyph found): ' + JSON.stringify(tab_struct));
}
_this.buildStem();
if (tab_struct.stem_direction) {
_this.setStemDirection(tab_struct.stem_direction);
} else {
_this.setStemDirection(Stem.UP);
}
// Renders parenthesis around notes
_this.ghost = false;
_this.updateWidth();
return _this;
}
// The ModifierContext category
createClass(TabNote, [{
key: 'getCategory',
value: function getCategory() {
return TabNote.CATEGORY;
}
// Set as ghost `TabNote`, surrounds the fret positions with parenthesis.
// Often used for indicating frets that are being bent to
}, {
key: 'setGhost',
value: function setGhost(ghost) {
this.ghost = ghost;
this.updateWidth();
return this;
}
// Determine if the note has a stem
}, {
key: 'hasStem',
value: function hasStem() {
return this.render_options.draw_stem;
}
// Get the default stem extension for the note
}, {
key: 'getStemExtension',
value: function getStemExtension() {
var glyph = this.getGlyph();
if (this.stem_extension_override != null) {
return this.stem_extension_override;
}
if (glyph) {
return this.getStemDirection() === 1 ? glyph.tabnote_stem_up_extension : glyph.tabnote_stem_down_extension;
}
return 0;
}
// Add a dot to the note
}, {
key: 'addDot',
value: function addDot() {
var dot = new Dot();
this.dots += 1;
return this.addModifier(dot, 0);
}
// Calculate and store the width of the note
}, {
key: 'updateWidth',
value: function updateWidth() {
this.glyphs = [];
this.width = 0;
for (var i = 0; i < this.positions.length; ++i) {
var fret = this.positions[i].fret;
if (this.ghost) fret = '(' + fret + ')';
var glyph = Flow.tabToGlyph(fret);
this.glyphs.push(glyph);
this.width = glyph.width > this.width ? glyph.width : this.width;
}
}
// Set the `stave` to the note
}, {
key: 'setStave',
value: function setStave(stave) {
get(Object.getPrototypeOf(TabNote.prototype), 'setStave', this).call(this, stave);
this.context = stave.context;
this.width = 0;
// Calculate the fret number width based on font used
var i = void 0;
if (this.context) {
for (i = 0; i < this.glyphs.length; ++i) {
var text = '' + this.glyphs[i].text;
if (text.toUpperCase() !== 'X') {
this.glyphs[i].width = this.context.measureText(text).width;
}
this.width = this.glyphs[i].width > this.width ? this.glyphs[i].width : this.width;
}
}
var ys = [];
// Setup y coordinates for score.
for (i = 0; i < this.positions.length; ++i) {
var line = this.positions[i].str;
ys.push(this.stave.getYForLine(line - 1));
}
return this.setYs(ys);
}
// Get the fret positions for the note
}, {
key: 'getPositions',
value: function getPositions() {
return this.positions;
}
// Add self to the provided modifier context `mc`
}, {
key: 'addToModifierContext',
value: function addToModifierContext(mc) {
this.setModifierContext(mc);
for (var i = 0; i < this.modifiers.length; ++i) {
this.modifierContext.addModifier(this.modifiers[i]);
}
this.modifierContext.addModifier(this);
this.preFormatted = false;
return this;
}
// Get the `x` coordinate to the right of the note
}, {
key: 'getTieRightX',
value: function getTieRightX() {
var tieStartX = this.getAbsoluteX();
var note_glyph_width = this.glyph.head_width;
tieStartX += note_glyph_width / 2;
tieStartX += -this.width / 2 + this.width + 2;
return tieStartX;
}
// Get the `x` coordinate to the left of the note
}, {
key: 'getTieLeftX',
value: function getTieLeftX() {
var tieEndX = this.getAbsoluteX();
var note_glyph_width = this.glyph.head_width;
tieEndX += note_glyph_width / 2;
tieEndX -= this.width / 2 + 2;
return tieEndX;
}
// Get the default `x` and `y` coordinates for a modifier at a specific
// `position` at a fret position `index`
}, {
key: 'getModifierStartXY',
value: function getModifierStartXY(position, index) {
if (!this.preFormatted) {
throw new Vex.RERR('UnformattedNote', "Can't call GetModifierStartXY on an unformatted note");
}
if (this.ys.length === 0) {
throw new Vex.RERR('NoYValues', 'No Y-Values calculated for this note.');
}
var x = 0;
if (position === Modifier.Position.LEFT) {
x = -1 * 2; // extra_left_px
} else if (position === Modifier.Position.RIGHT) {
x = this.width + 2; // extra_right_px
} else if (position === Modifier.Position.BELOW || position === Modifier.Position.ABOVE) {
var note_glyph_width = this.glyph.head_width;
x = note_glyph_width / 2;
}
return {
x: this.getAbsoluteX() + x,
y: this.ys[index]
};
}
// Get the default line for rest
}, {
key: 'getLineForRest',
value: function getLineForRest() {
return this.positions[0].str;
}
// Pre-render formatting
}, {
key: 'preFormat',
value: function preFormat() {
if (this.preFormatted) return;
if (this.modifierContext) this.modifierContext.preFormat();
// width is already set during init()
this.setPreFormatted(true);
}
// Get the x position for the stem
}, {
key: 'getStemX',
value: function getStemX() {
return this.getCenterGlyphX();
}
// Get the y position for the stem
}, {
key: 'getStemY',
value: function getStemY() {
var num_lines = this.stave.getNumLines();
// The decimal staff line amounts provide optimal spacing between the
// fret number and the stem
var stemUpLine = -0.5;
var stemDownLine = num_lines - 0.5;
var stemStartLine = Stem.UP === this.stem_direction ? stemUpLine : stemDownLine;
return this.stave.getYForLine(stemStartLine);
}
// Get the stem extents for the tabnote
}, {
key: 'getStemExtents',
value: function getStemExtents() {
var stem_base_y = this.getStemY();
var stem_top_y = stem_base_y + Stem.HEIGHT * -this.stem_direction;
return { topY: stem_top_y, baseY: stem_base_y };
}
// Draw the fal onto the context
}, {
key: 'drawFlag',
value: function drawFlag() {
var render_stem = this.beam == null && this.render_options.draw_stem;
var render_flag = this.beam == null && render_stem;
// Now it's the flag's turn.
if (this.glyph.flag && render_flag) {
var flag_x = this.getStemX() + 1;
var flag_y = this.getStemY() - this.stem.getHeight();
var flag_code = void 0;
if (this.stem_direction === Stem.DOWN) {
// Down stems have flags on the left.
flag_code = this.glyph.code_flag_downstem;
} else {
// Up stems have flags on the left.
flag_code = this.glyph.code_flag_upstem;
}
// Draw the Flag
Glyph.renderGlyph(this.context, flag_x, flag_y, this.render_options.glyph_font_scale, flag_code);
}
}
// Render the modifiers onto the context
}, {
key: 'drawModifiers',
value: function drawModifiers() {
var _this2 = this;
// Draw the modifiers
this.modifiers.forEach(function (modifier) {
// Only draw the dots if enabled
if (modifier.getCategory() === 'dots' && !_this2.render_options.draw_dots) return;
modifier.setContext(_this2.context);
modifier.draw();
});
}
// Render the stem extension through the fret positions
}, {
key: 'drawStemThrough',
value: function drawStemThrough() {
var stem_x = this.getStemX();
var stem_y = this.getStemY();
var ctx = this.context;
var stem_through = this.render_options.draw_stem_through_stave;
var draw_stem = this.render_options.draw_stem;
if (draw_stem && stem_through) {
var total_lines = this.stave.getNumLines();
var strings_used = this.positions.map(function (position) {
return position.str;
});
var unused_strings = getUnusedStringGroups(total_lines, strings_used);
var stem_lines = getPartialStemLines(stem_y, unused_strings, this.getStave(), this.getStemDirection());
// Fine tune x position to match default stem
if (!this.beam || this.getStemDirection() === 1) {
stem_x += Stem.WIDTH / 2;
}
ctx.save();
ctx.setLineWidth(Stem.WIDTH);
stem_lines.forEach(function (bounds) {
if (bounds.length === 0) return;
ctx.beginPath();
ctx.moveTo(stem_x, bounds[0]);
ctx.lineTo(stem_x, bounds[bounds.length - 1]);
ctx.stroke();
ctx.closePath();
});
ctx.restore();
}
}
// Render the fret positions onto the context
}, {
key: 'drawPositions',
value: function drawPositions() {
var ctx = this.context;
var x = this.getAbsoluteX();
var ys = this.ys;
for (var i = 0; i < this.positions.length; ++i) {
var y = ys[i];
var glyph = this.glyphs[i];
// Center the fret text beneath the notation note head
var note_glyph_width = this.glyph.head_width;
var tab_x = x + note_glyph_width / 2 - glyph.width / 2;
ctx.clearRect(tab_x - 2, y - 3, glyph.width + 4, 6);
if (glyph.code) {
Glyph.renderGlyph(ctx, tab_x, y + 5 + glyph.shift_y, this.render_options.glyph_font_scale, glyph.code);
} else {
var text = glyph.text.toString();
ctx.fillText(text, tab_x, y + 5);
}
}
}
// The main rendering function for the entire note
}, {
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoCanvasContext', "Can't draw without a canvas context.");
}
if (!this.stave) {
throw new Vex.RERR('NoStave', "Can't draw without a stave.");
}
if (this.ys.length === 0) {
throw new Vex.RERR('NoYValues', "Can't draw note without Y values.");
}
var render_stem = this.beam == null && this.render_options.draw_stem;
this.drawPositions();
this.drawStemThrough();
var stem_x = this.getStemX();
var stem_y = this.getStemY();
if (render_stem) {
this.drawStem({
x_begin: stem_x,
x_end: stem_x,
y_top: stem_y,
y_bottom: stem_y,
y_extend: 0,
stem_extension: this.getStemExtension(),
stem_direction: this.stem_direction
});
}
this.drawFlag();
this.drawModifiers();
}
}]);
return TabNote;
}(StemmableNote);
/** @constructor */
var ClefNote = function (_Note) {
inherits(ClefNote, _Note);
createClass(ClefNote, null, [{
key: 'CATEGORY',
get: function get() {
return 'clefnote';
}
}]);
function ClefNote(type, size, annotation) {
classCallCheck(this, ClefNote);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(ClefNote).call(this, { duration: 'b' }));
_this.setType(type, size, annotation);
// Note properties
_this.ignore_ticks = true;
return _this;
}
createClass(ClefNote, [{
key: 'setType',
value: function setType(type, size, annotation) {
this.type = type;
this.clef_obj = new Clef(type, size, annotation);
this.clef = this.clef_obj.clef;
this.glyph = new Glyph(this.clef.code, this.clef.point);
this.setWidth(this.glyph.getMetrics().width);
return this;
}
}, {
key: 'getClef',
value: function getClef() {
return this.clef;
}
}, {
key: 'setContext',
value: function setContext(context) {
this.context = context;
this.glyph.setContext(this.context);
return this;
}
}, {
key: 'getBoundingBox',
value: function getBoundingBox() {
return new BoundingBox(0, 0, 0, 0);
}
}, {
key: 'addToModifierContext',
value: function addToModifierContext() {
/* overridden to ignore */
return this;
}
}, {
key: 'getCategory',
value: function getCategory() {
return ClefNote.CATEGORY;
}
}, {
key: 'preFormat',
value: function preFormat() {
this.setPreFormatted(true);
return this;
}
}, {
key: 'draw',
value: function draw() {
if (!this.stave) throw new Vex.RERR('NoStave', "Can't draw without a stave.");
if (!this.glyph.getContext()) {
this.glyph.setContext(this.context);
}
var abs_x = this.getAbsoluteX();
this.glyph.setStave(this.stave);
this.glyph.setYShift(this.stave.getYForLine(this.clef.line) - this.stave.getYForGlyphs());
this.glyph.renderToStave(abs_x);
// If the Vex.Flow.Clef has an annotation, such as 8va, draw it.
if (this.clef_obj.annotation !== undefined) {
var attachment = new Glyph(this.clef_obj.annotation.code, this.clef_obj.annotation.point);
if (!attachment.getContext()) {
attachment.setContext(this.context);
}
attachment.setStave(this.stave);
attachment.setYShift(this.stave.getYForLine(this.clef_obj.annotation.line) - this.stave.getYForGlyphs());
attachment.setXShift(this.clef_obj.annotation.x_shift);
attachment.renderToStave(abs_x);
}
}
}]);
return ClefNote;
}(Note);
var TimeSigNote = function (_Note) {
inherits(TimeSigNote, _Note);
function TimeSigNote(timeSpec, customPadding) {
classCallCheck(this, TimeSigNote);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(TimeSigNote).call(this, { duration: 'b' }));
var timeSignature = new TimeSignature(timeSpec, customPadding);
_this.timeSig = timeSignature.getTimeSig();
_this.setWidth(_this.timeSig.glyph.getMetrics().width);
// Note properties
_this.ignore_ticks = true;
return _this;
}
createClass(TimeSigNote, [{
key: 'getBoundingBox',
value: function getBoundingBox() {
return new BoundingBox(0, 0, 0, 0);
}
}, {
key: 'addToModifierContext',
value: function addToModifierContext() {
/* overridden to ignore */
return this;
}
}, {
key: 'preFormat',
value: function preFormat() {
this.setPreFormatted(true);
return this;
}
}, {
key: 'draw',
value: function draw() {
if (!this.stave) throw new Vex.RERR('NoStave', "Can't draw without a stave.");
if (!this.timeSig.glyph.getContext()) {
this.timeSig.glyph.setContext(this.context);
}
this.timeSig.glyph.setStave(this.stave);
this.timeSig.glyph.setYShift(this.stave.getYForLine(this.timeSig.line) - this.stave.getYForGlyphs());
this.timeSig.glyph.renderToStave(this.getAbsoluteX());
}
}]);
return TimeSigNote;
}(Note);
var TabTie = function (_StaveTie) {
inherits(TabTie, _StaveTie);
createClass(TabTie, null, [{
key: 'createHammeron',
value: function createHammeron(notes) {
return new TabTie(notes, 'H');
}
}, {
key: 'createPulloff',
value: function createPulloff(notes) {
return new TabTie(notes, 'P');
}
}]);
function TabTie(notes, text) {
classCallCheck(this, TabTie);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(TabTie).call(this, notes, text));
/**
* Notes is a struct that has:
*
* {
* first_note: Note,
* last_note: Note,
* first_indices: [n1, n2, n3],
* last_indices: [n1, n2, n3]
* }
*
**/
_this.render_options.cp1 = 9;
_this.render_options.cp2 = 11;
_this.render_options.y_shift = 3;
_this.setNotes(notes);
return _this;
}
createClass(TabTie, [{
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoContext', 'No context to render tie.');
}
var first_note = this.first_note;
var last_note = this.last_note;
var first_x_px = void 0;
var last_x_px = void 0;
var first_ys = void 0;
var last_ys = void 0;
if (first_note) {
first_x_px = first_note.getTieRightX() + this.render_options.tie_spacing;
first_ys = first_note.getYs();
} else {
first_x_px = last_note.getStave().getTieStartX();
first_ys = last_note.getYs();
this.first_indices = this.last_indices;
}
if (last_note) {
last_x_px = last_note.getTieLeftX() + this.render_options.tie_spacing;
last_ys = last_note.getYs();
} else {
last_x_px = first_note.getStave().getTieEndX();
last_ys = first_note.getYs();
this.last_indices = this.first_indices;
}
this.renderTie({
first_x_px: first_x_px,
last_x_px: last_x_px,
first_ys: first_ys,
last_ys: last_ys,
direction: -1 });
this.renderText(first_x_px, last_x_px);
return true;
}
}]);
return TabTie;
}(StaveTie);
var TabSlide = function (_TabTie) {
inherits(TabSlide, _TabTie);
createClass(TabSlide, null, [{
key: 'createSlideUp',
value: function createSlideUp(notes) {
return new TabSlide(notes, TabSlide.SLIDE_UP);
}
}, {
key: 'createSlideDown',
value: function createSlideDown(notes) {
return new TabSlide(notes, TabSlide.SLIDE_DOWN);
}
}, {
key: 'SLIDE_UP',
get: function get() {
return 1;
}
}, {
key: 'SLIDE_DOWN',
get: function get() {
return -1;
}
}]);
function TabSlide(notes, direction) {
classCallCheck(this, TabSlide);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(TabSlide).call(this, notes, 'sl.'));
/**
* Notes is a struct that has:
*
* {
* first_note: Note,
* last_note: Note,
* first_indices: [n1, n2, n3],
* last_indices: [n1, n2, n3]
* }
*
**/
if (!direction) {
var first_fret = notes.first_note.getPositions()[0].fret;
var last_fret = notes.last_note.getPositions()[0].fret;
direction = parseInt(first_fret, 10) > parseInt(last_fret, 10) ? TabSlide.SLIDE_DOWN : TabSlide.SLIDE_UP;
}
_this.slide_direction = direction;
_this.render_options.cp1 = 11;
_this.render_options.cp2 = 14;
_this.render_options.y_shift = 0.5;
_this.setFont({ font: 'Times', size: 10, style: 'bold italic' });
_this.setNotes(notes);
return _this;
}
createClass(TabSlide, [{
key: 'renderTie',
value: function renderTie(params) {
if (params.first_ys.length === 0 || params.last_ys.length === 0) {
throw new Vex.RERR('BadArguments', 'No Y-values to render');
}
var ctx = this.context;
var first_x_px = params.first_x_px;
var first_ys = params.first_ys;
var last_x_px = params.last_x_px;
var direction = this.slide_direction;
if (direction !== TabSlide.SLIDE_UP && direction !== TabSlide.SLIDE_DOWN) {
throw new Vex.RERR('BadSlide', 'Invalid slide direction');
}
for (var i = 0; i < this.first_indices.length; ++i) {
var slide_y = first_ys[this.first_indices[i]] + this.render_options.y_shift;
if (isNaN(slide_y)) {
throw new Vex.RERR('BadArguments', 'Bad indices for slide rendering.');
}
ctx.beginPath();
ctx.moveTo(first_x_px, slide_y + 3 * direction);
ctx.lineTo(last_x_px, slide_y - 3 * direction);
ctx.closePath();
ctx.stroke();
}
}
}]);
return TabSlide;
}(TabTie);
var GraceNote = function (_StaveNote) {
inherits(GraceNote, _StaveNote);
createClass(GraceNote, null, [{
key: 'CATEGORY',
get: function get() {
return 'gracenotes';
}
}]);
function GraceNote(note_struct) {
classCallCheck(this, GraceNote);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(GraceNote).call(this, note_struct));
_this.render_options.glyph_font_scale = 22;
_this.render_options.stem_height = 20;
_this.render_options.stroke_px = 2;
_this.glyph.head_width = 6;
_this.slash = note_struct.slash;
_this.slur = true;
_this.buildNoteHeads();
_this.width = 3;
return _this;
}
createClass(GraceNote, [{
key: 'getStemExtension',
value: function getStemExtension() {
var glyph = this.getGlyph();
if (this.stem_extension_override != null) {
return this.stem_extension_override;
}
if (glyph) {
return this.getStemDirection() === 1 ? glyph.gracenote_stem_up_extension : glyph.gracenote_stem_down_extension;
}
return 0;
}
}, {
key: 'getCategory',
value: function getCategory() {
return GraceNote.CATEGORY;
}
}, {
key: 'draw',
value: function draw() {
get(Object.getPrototypeOf(GraceNote.prototype), 'draw', this).call(this);
var ctx = this.context;
var stem_direction = this.getStemDirection();
if (this.slash) {
ctx.beginPath();
var x = this.getAbsoluteX();
var y = this.getYs()[0] - this.stem.getHeight() / 2.8;
if (stem_direction === 1) {
x += 1;
ctx.moveTo(x, y);
ctx.lineTo(x + 13, y - 9);
} else if (stem_direction === -1) {
x -= 4;
y += 1;
ctx.moveTo(x, y);
ctx.lineTo(x + 13, y + 9);
}
ctx.closePath();
ctx.stroke();
}
}
}]);
return GraceNote;
}(StaveNote);
var Tuning = function () {
createClass(Tuning, null, [{
key: 'names',
get: function get() {
return {
'standard': 'E/5,B/4,G/4,D/4,A/3,E/3',
'dagdad': 'D/5,A/4,G/4,D/4,A/3,D/3',
'dropd': 'E/5,B/4,G/4,D/4,A/3,D/3',
'eb': 'Eb/5,Bb/4,Gb/4,Db/4,Ab/3,Db/3',
'standardBanjo': 'D/5,B/4,G/4,D/4,G/5'
};
}
}]);
function Tuning() {
var tuningString = arguments.length <= 0 || arguments[0] === undefined ? 'E/5,B/4,G/4,D/4,A/3,E/3,B/2,E/2' : arguments[0];
classCallCheck(this, Tuning);
// Default to standard tuning.
this.setTuning(tuningString);
}
createClass(Tuning, [{
key: 'noteToInteger',
value: function noteToInteger(noteString) {
return Flow.keyProperties(noteString).int_value;
}
}, {
key: 'setTuning',
value: function setTuning(noteString) {
if (Tuning.names[noteString]) {
noteString = Tuning.names[noteString];
}
this.tuningString = noteString;
this.tuningValues = [];
this.numStrings = 0;
var keys = noteString.split(/\s*,\s*/);
if (keys.length === 0) {
throw new Vex.RERR('BadArguments', 'Invalid tuning string: ' + noteString);
}
this.numStrings = keys.length;
for (var i = 0; i < this.numStrings; ++i) {
this.tuningValues[i] = this.noteToInteger(keys[i]);
}
}
}, {
key: 'getValueForString',
value: function getValueForString(stringNum) {
var s = parseInt(stringNum, 10);
if (s < 1 || s > this.numStrings) {
throw new Vex.RERR('BadArguments', 'String number must be between 1 and ' + this.numStrings + ':' + stringNum);
}
return this.tuningValues[s - 1];
}
}, {
key: 'getValueForFret',
value: function getValueForFret(fretNum, stringNum) {
var stringValue = this.getValueForString(stringNum);
var f = parseInt(fretNum, 10);
if (f < 0) {
throw new Vex.RERR('BadArguments', 'Fret number must be 0 or higher: ' + fretNum);
}
return stringValue + f;
}
}, {
key: 'getNoteForFret',
value: function getNoteForFret(fretNum, stringNum) {
var noteValue = this.getValueForFret(fretNum, stringNum);
var octave = Math.floor(noteValue / 12);
var value = noteValue % 12;
return Flow.integerToNote(value) + '/' + octave;
}
}]);
return Tuning;
}();
var KeyManager = function () {
function KeyManager(key) {
classCallCheck(this, KeyManager);
this.music = new Music();
this.setKey(key);
}
createClass(KeyManager, [{
key: 'setKey',
value: function setKey(key) {
this.key = key;
this.reset();
return this;
}
}, {
key: 'getKey',
value: function getKey() {
return this.key;
}
}, {
key: 'reset',
value: function reset() {
this.keyParts = this.music.getKeyParts(this.key);
this.keyString = this.keyParts.root;
if (this.keyParts.accidental) this.keyString += this.keyParts.accidental;
var is_supported_type = Music.scaleTypes[this.keyParts.type];
if (!is_supported_type) {
throw new Vex.RERR('BadArguments', 'Unsupported key type: ' + this.key);
}
this.scale = this.music.getScaleTones(this.music.getNoteValue(this.keyString), Music.scaleTypes[this.keyParts.type]);
this.scaleMap = {};
this.scaleMapByValue = {};
this.originalScaleMapByValue = {};
var noteLocation = Music.root_indices[this.keyParts.root];
for (var i = 0; i < Music.roots.length; ++i) {
var index = (noteLocation + i) % Music.roots.length;
var rootName = Music.roots[index];
var noteName = this.music.getRelativeNoteName(rootName, this.scale[i]);
this.scaleMap[rootName] = noteName;
this.scaleMapByValue[this.scale[i]] = noteName;
this.originalScaleMapByValue[this.scale[i]] = noteName;
}
return this;
}
}, {
key: 'getAccidental',
value: function getAccidental(key) {
var root = this.music.getKeyParts(key).root;
var parts = this.music.getNoteParts(this.scaleMap[root]);
return {
note: this.scaleMap[root],
accidental: parts.accidental
};
}
}, {
key: 'selectNote',
value: function selectNote(note) {
note = note.toLowerCase();
var parts = this.music.getNoteParts(note);
// First look for matching note in our altered scale
var scaleNote = this.scaleMap[parts.root];
var modparts = this.music.getNoteParts(scaleNote);
if (scaleNote === note) {
return {
'note': scaleNote,
'accidental': parts.accidental,
'change': false
};
}
// Then search for a note of equivalent value in our altered scale
var valueNote = this.scaleMapByValue[this.music.getNoteValue(note)];
if (valueNote != null) {
return {
'note': valueNote,
'accidental': this.music.getNoteParts(valueNote).accidental,
'change': false
};
}
// Then search for a note of equivalent value in the original scale
var originalValueNote = this.originalScaleMapByValue[this.music.getNoteValue(note)];
if (originalValueNote != null) {
this.scaleMap[modparts.root] = originalValueNote;
delete this.scaleMapByValue[this.music.getNoteValue(scaleNote)];
this.scaleMapByValue[this.music.getNoteValue(note)] = originalValueNote;
return {
'note': originalValueNote,
'accidental': this.music.getNoteParts(originalValueNote).accidental,
'change': true
};
}
// Then try to unmodify a currently modified note.
if (modparts.root === note) {
delete this.scaleMapByValue[this.music.getNoteValue(this.scaleMap[parts.root])];
this.scaleMapByValue[this.music.getNoteValue(modparts.root)] = modparts.root;
this.scaleMap[modparts.root] = modparts.root;
return {
'note': modparts.root,
'accidental': null,
'change': true
};
}
// Last resort -- shitshoot
delete this.scaleMapByValue[this.music.getNoteValue(this.scaleMap[parts.root])];
this.scaleMapByValue[this.music.getNoteValue(note)] = note;
delete this.scaleMap[modparts.root];
this.scaleMap[modparts.root] = note;
return {
note: note,
'accidental': parts.accidental,
'change': true
};
}
}]);
return KeyManager;
}();
var StaveHairpin = function () {
createClass(StaveHairpin, null, [{
key: 'FormatByTicksAndDraw',
/* Helper function to convert ticks into pixels.
* Requires a Formatter with voices joined and formatted (to
* get pixels per tick)
*
* options is struct that has:
*
* {
* height: px,
* y_shift: px, //vertical offset
* left_shift_ticks: 0, //left horizontal offset expressed in ticks
* right_shift_ticks: 0 // right horizontal offset expressed in ticks
* }
*
**/
value: function FormatByTicksAndDraw(ctx, formatter, notes, type, position, options) {
var ppt = formatter.pixelsPerTick;
if (ppt == null) {
throw new Vex.RuntimeError('BadArguments', 'A valid Formatter must be provide to draw offsets by ticks.');
}
var l_shift_px = ppt * options.left_shift_ticks;
var r_shift_px = ppt * options.right_shift_ticks;
var hairpin_options = {
height: options.height,
y_shift: options.y_shift,
left_shift_px: l_shift_px,
right_shift_px: r_shift_px };
new StaveHairpin({
first_note: notes.first_note,
last_note: notes.last_note
}, type).setContext(ctx).setRenderOptions(hairpin_options).setPosition(position).draw();
}
/**
* Create a new hairpin from the specified notes.
*
* @constructor
* @param {!Object} notes The notes to tie up.
* @param {!Object} type The type of hairpin
*/
}, {
key: 'type',
get: function get() {
return {
CRESC: 1,
DECRESC: 2
};
}
}]);
function StaveHairpin(notes, type) {
classCallCheck(this, StaveHairpin);
/**
* Notes is a struct that has:
*
* {
* first_note: Note,
* last_note: Note,
* }
*
**/
this.notes = notes;
this.hairpin = type;
this.position = Modifier.Position.BELOW;
this.context = null;
this.render_options = {
height: 10,
y_shift: 0, // vertical offset
left_shift_px: 0, // left horizontal offset
right_shift_px: 0 };
this.setNotes(notes);
}
createClass(StaveHairpin, [{
key: 'setContext',
value: function setContext(context) {
this.context = context;return this;
}
}, {
key: 'setPosition',
value: function setPosition(position) {
if (position === Modifier.Position.ABOVE || position === Modifier.Position.BELOW) {
this.position = position;
}
return this;
}
}, {
key: 'setRenderOptions',
value: function setRenderOptions(options) {
if (options.height != null && options.y_shift != null && options.left_shift_px != null && options.right_shift_px != null) {
this.render_options = options;
}
return this;
}
/**
* Set the notes to attach this hairpin to.
*
* @param {!Object} notes The start and end notes.
*/
}, {
key: 'setNotes',
value: function setNotes(notes) {
if (!notes.first_note && !notes.last_note) {
throw new Vex.RuntimeError('BadArguments', 'Hairpin needs to have either first_note or last_note set.');
}
// Success. Lets grab 'em notes.
this.first_note = notes.first_note;
this.last_note = notes.last_note;
return this;
}
}, {
key: 'renderHairpin',
value: function renderHairpin(params) {
var ctx = this.context;
var dis = this.render_options.y_shift + 20;
var y_shift = params.first_y;
if (this.position === Modifier.Position.ABOVE) {
dis = -dis + 30;
y_shift = params.first_y - params.staff_height;
}
var l_shift = this.render_options.left_shift_px;
var r_shift = this.render_options.right_shift_px;
ctx.beginPath();
switch (this.hairpin) {
case StaveHairpin.type.CRESC:
ctx.moveTo(params.last_x + r_shift, y_shift + dis);
ctx.lineTo(params.first_x + l_shift, y_shift + this.render_options.height / 2 + dis);
ctx.lineTo(params.last_x + r_shift, y_shift + this.render_options.height + dis);
break;
case StaveHairpin.type.DECRESC:
ctx.moveTo(params.first_x + l_shift, y_shift + dis);
ctx.lineTo(params.last_x + r_shift, y_shift + this.render_options.height / 2 + dis);
ctx.lineTo(params.first_x + l_shift, y_shift + this.render_options.height + dis);
break;
default:
// Default is NONE, so nothing to draw
break;
}
ctx.stroke();
ctx.closePath();
}
}, {
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoContext', "Can't draw Hairpin without a context.");
}
var firstNote = this.first_note;
var lastNote = this.last_note;
var start = firstNote.getModifierStartXY(this.position, 0);
var end = lastNote.getModifierStartXY(this.position, 0);
this.renderHairpin({
first_x: start.x,
last_x: end.x,
first_y: firstNote.getStave().y + firstNote.getStave().height,
last_y: lastNote.getStave().y + lastNote.getStave().height,
staff_height: firstNote.getStave().height
});
return true;
}
}]);
return StaveHairpin;
}();
var Curve = function () {
createClass(Curve, null, [{
key: 'Position',
get: function get() {
return {
NEAR_HEAD: 1,
NEAR_TOP: 2
};
}
// from: Start note
// to: End note
// options:
// cps: List of control points
// x_shift: pixels to shift
// y_shift: pixels to shift
}]);
function Curve(from, to, options) {
classCallCheck(this, Curve);
this.render_options = {
spacing: 2,
thickness: 2,
x_shift: 0,
y_shift: 10,
position: Curve.Position.NEAR_HEAD,
invert: false,
cps: [{ x: 0, y: 10 }, { x: 0, y: 10 }]
};
Vex.Merge(this.render_options, options);
this.setNotes(from, to);
}
createClass(Curve, [{
key: 'setContext',
value: function setContext(context) {
this.context = context;return this;
}
}, {
key: 'setNotes',
value: function setNotes(from, to) {
if (!from && !to) {
throw new Vex.RuntimeError('BadArguments', 'Curve needs to have either first_note or last_note set.');
}
this.from = from;
this.to = to;
return this;
}
/**
* @return {boolean} Returns true if this is a partial bar.
*/
}, {
key: 'isPartial',
value: function isPartial() {
return !this.from || !this.to;
}
}, {
key: 'renderCurve',
value: function renderCurve(params) {
var ctx = this.context;
var cps = this.render_options.cps;
var x_shift = this.render_options.x_shift;
var y_shift = this.render_options.y_shift * params.direction;
var first_x = params.first_x + x_shift;
var first_y = params.first_y + y_shift;
var last_x = params.last_x - x_shift;
var last_y = params.last_y + y_shift;
var thickness = this.render_options.thickness;
var cp_spacing = (last_x - first_x) / (cps.length + 2);
ctx.beginPath();
ctx.moveTo(first_x, first_y);
ctx.bezierCurveTo(first_x + cp_spacing + cps[0].x, first_y + cps[0].y * params.direction, last_x - cp_spacing + cps[1].x, last_y + cps[1].y * params.direction, last_x, last_y);
ctx.bezierCurveTo(last_x - cp_spacing + cps[1].x, last_y + (cps[1].y + thickness) * params.direction, first_x + cp_spacing + cps[0].x, first_y + (cps[0].y + thickness) * params.direction, first_x, first_y);
ctx.stroke();
ctx.closePath();
ctx.fill();
}
}, {
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoContext', 'No context to render tie.');
}
var first_note = this.from;
var last_note = this.to;
var first_x = void 0;
var last_x = void 0;
var first_y = void 0;
var last_y = void 0;
var stem_direction = void 0;
var metric = 'baseY';
var end_metric = 'baseY';
var position = this.render_options.position;
var position_end = this.render_options.position_end;
if (position === Curve.Position.NEAR_TOP) {
metric = 'topY';
end_metric = 'topY';
}
if (position_end === Curve.Position.NEAR_HEAD) {
end_metric = 'baseY';
} else if (position_end === Curve.Position.NEAR_TOP) {
end_metric = 'topY';
}
if (first_note) {
first_x = first_note.getTieRightX();
stem_direction = first_note.getStemDirection();
first_y = first_note.getStemExtents()[metric];
} else {
first_x = last_note.getStave().getTieStartX();
first_y = last_note.getStemExtents()[metric];
}
if (last_note) {
last_x = last_note.getTieLeftX();
stem_direction = last_note.getStemDirection();
last_y = last_note.getStemExtents()[end_metric];
} else {
last_x = first_note.getStave().getTieEndX();
last_y = first_note.getStemExtents()[end_metric];
}
this.renderCurve({
first_x: first_x,
last_x: last_x,
first_y: first_y,
last_y: last_y,
direction: stem_direction * (this.render_options.invert === true ? -1 : 1)
});
return true;
}
}]);
return Curve;
}();
// To enable logging for this class. Set `Vex.Flow.TextDynamics.DEBUG` to `true`.
function L$13() {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
if (TextDynamics.DEBUG) Vex.L('Vex.Flow.TextDynamics', args);
}
var TextDynamics = function (_Note) {
inherits(TextDynamics, _Note);
createClass(TextDynamics, null, [{
key: 'GLYPHS',
// The glyph data for each dynamics letter
get: function get() {
return {
'f': {
code: 'vba',
width: 12
},
'p': {
code: 'vbf',
width: 14
},
'm': {
code: 'v62',
width: 17
},
's': {
code: 'v4a',
width: 10
},
'z': {
code: 'v80',
width: 12
},
'r': {
code: 'vb1',
width: 12
}
};
}
// A `TextDynamics` object inherits from `Note` so that it can be formatted
// within a `Voice`.
// Create the dynamics marking. `text_struct` is an object
// that contains a `duration` property and a `sequence` of
// letters that represents the letters to render
}]);
function TextDynamics(text_struct) {
classCallCheck(this, TextDynamics);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(TextDynamics).call(this, text_struct));
_this.sequence = text_struct.text.toLowerCase();
_this.line = text_struct.line || 0;
_this.glyphs = [];
Vex.Merge(_this.render_options, {
glyph_font_size: 40
});
L$13('New Dynamics Text: ', _this.sequence);
return _this;
}
// Set the Stave line on which the note should be placed
createClass(TextDynamics, [{
key: 'setLine',
value: function setLine(line) {
this.line = line;
return this;
}
// Preformat the dynamics text
}, {
key: 'preFormat',
value: function preFormat() {
var _this2 = this;
var total_width = 0;
// Iterate through each letter
this.sequence.split('').forEach(function (letter) {
// Get the glyph data for the letter
var glyph_data = TextDynamics.GLYPHS[letter];
if (!glyph_data) throw new Vex.RERR('Invalid dynamics character: ' + letter);
var size = _this2.render_options.glyph_font_size;
var glyph = new Glyph(glyph_data.code, size);
// Add the glyph
_this2.glyphs.push(glyph);
total_width += glyph_data.width;
});
// Store the width of the text
this.setWidth(total_width);
this.preFormatted = true;
return this;
}
// Draw the dynamics text on the rendering context
}, {
key: 'draw',
value: function draw() {
var _this3 = this;
var x = this.getAbsoluteX();
var y = this.stave.getYForLine(this.line + -3);
L$13('Rendering Dynamics: ', this.sequence);
var letter_x = x;
this.glyphs.forEach(function (glyph, index) {
var current_letter = _this3.sequence[index];
glyph.render(_this3.context, letter_x, y);
letter_x += TextDynamics.GLYPHS[current_letter].width;
});
}
}]);
return TextDynamics;
}(Note);
// Attribution: Arrow rendering implementations based off of
// Patrick Horgan's article, "Drawing lines and arcs with
// arrow heads on HTML5 Canvas"
//
// Draw an arrow head that connects between 3 coordinates
function drawArrowHead(ctx, x0, y0, x1, y1, x2, y2) {
// all cases do this.
ctx.beginPath();
ctx.moveTo(x0, y0);
ctx.lineTo(x1, y1);
ctx.lineTo(x2, y2);
ctx.lineTo(x0, y0);
ctx.closePath();
ctx.fill();
}
// Helper function to draw a line with arrow heads
function drawArrowLine(ctx, point1, point2, config) {
var both_arrows = config.draw_start_arrow && config.draw_end_arrow;
var x1 = point1.x;
var y1 = point1.y;
var x2 = point2.x;
var y2 = point2.y;
// For ends with arrow we actually want to stop before we get to the arrow
// so that wide lines won't put a flat end on the arrow.
var distance = Math.sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1));
var ratio = (distance - config.arrowhead_length / 3) / distance;
var end_x = void 0;
var end_y = void 0;
var start_x = void 0;
var start_y = void 0;
if (config.draw_end_arrow || both_arrows) {
end_x = Math.round(x1 + (x2 - x1) * ratio);
end_y = Math.round(y1 + (y2 - y1) * ratio);
} else {
end_x = x2;
end_y = y2;
}
if (config.draw_start_arrow || both_arrows) {
start_x = x1 + (x2 - x1) * (1 - ratio);
start_y = y1 + (y2 - y1) * (1 - ratio);
} else {
start_x = x1;
start_y = y1;
}
if (config.color) {
ctx.setStrokeStyle(config.color);
ctx.setFillStyle(config.color);
}
// Draw the shaft of the arrow
ctx.beginPath();
ctx.moveTo(start_x, start_y);
ctx.lineTo(end_x, end_y);
ctx.stroke();
ctx.closePath();
// calculate the angle of the line
var line_angle = Math.atan2(y2 - y1, x2 - x1);
// h is the line length of a side of the arrow head
var h = Math.abs(config.arrowhead_length / Math.cos(config.arrowhead_angle));
var angle1 = void 0;
var angle2 = void 0;
var top_x = void 0;
var top_y = void 0;
var bottom_x = void 0;
var bottom_y = void 0;
if (config.draw_end_arrow || both_arrows) {
angle1 = line_angle + Math.PI + config.arrowhead_angle;
top_x = x2 + Math.cos(angle1) * h;
top_y = y2 + Math.sin(angle1) * h;
angle2 = line_angle + Math.PI - config.arrowhead_angle;
bottom_x = x2 + Math.cos(angle2) * h;
bottom_y = y2 + Math.sin(angle2) * h;
drawArrowHead(ctx, top_x, top_y, x2, y2, bottom_x, bottom_y);
}
if (config.draw_start_arrow || both_arrows) {
angle1 = line_angle + config.arrowhead_angle;
top_x = x1 + Math.cos(angle1) * h;
top_y = y1 + Math.sin(angle1) * h;
angle2 = line_angle - config.arrowhead_angle;
bottom_x = x1 + Math.cos(angle2) * h;
bottom_y = y1 + Math.sin(angle2) * h;
drawArrowHead(ctx, top_x, top_y, x1, y1, bottom_x, bottom_y);
}
}
var StaveLine = function () {
createClass(StaveLine, null, [{
key: 'TextVerticalPosition',
// Text Positioning
get: function get() {
return {
TOP: 1,
BOTTOM: 2
};
}
}, {
key: 'TextJustification',
get: function get() {
return {
LEFT: 1,
CENTER: 2,
RIGHT: 3
};
}
// Initialize the StaveLine with the given `notes`.
//
// `notes` is a struct that has:
//
// ```
// {
// first_note: Note,
// last_note: Note,
// first_indices: [n1, n2, n3],
// last_indices: [n1, n2, n3]
// }
// ```
}]);
function StaveLine(notes) {
classCallCheck(this, StaveLine);
this.notes = notes;
this.context = null;
this.text = '';
this.font = {
family: 'Arial',
size: 10,
weight: ''
};
this.render_options = {
// Space to add to the left or the right
padding_left: 4,
padding_right: 3,
// The width of the line in pixels
line_width: 1,
// An array of line/space lengths. Unsupported with Raphael (SVG)
line_dash: null,
// Can draw rounded line end, instead of a square. Unsupported with Raphael (SVG)
rounded_end: true,
// The color of the line and arrowheads
color: null,
// Flags to draw arrows on each end of the line
draw_start_arrow: false,
draw_end_arrow: false,
// The length of the arrowhead sides
arrowhead_length: 10,
// The angle of the arrowhead
arrowhead_angle: Math.PI / 8,
// The position of the text
text_position_vertical: StaveLine.TextVerticalPosition.TOP,
text_justification: StaveLine.TextJustification.CENTER
};
this.setNotes(notes);
}
// Set the rendering context
createClass(StaveLine, [{
key: 'setContext',
value: function setContext(context) {
this.context = context;return this;
}
// Set the font for the `StaveLine` text
}, {
key: 'setFont',
value: function setFont(font) {
this.font = font;return this;
}
// The the annotation for the `StaveLine`
}, {
key: 'setText',
value: function setText(text) {
this.text = text;return this;
}
// Set the notes for the `StaveLine`
}, {
key: 'setNotes',
value: function setNotes(notes) {
if (!notes.first_note && !notes.last_note) {
throw new Vex.RuntimeError('BadArguments', 'Notes needs to have either first_note or last_note set.');
}
if (!notes.first_indices) notes.first_indices = [0];
if (!notes.last_indices) notes.last_indices = [0];
if (notes.first_indices.length !== notes.last_indices.length) {
throw new Vex.RuntimeError('BadArguments', 'Connected notes must have similar index sizes');
}
// Success. Lets grab 'em notes.
this.first_note = notes.first_note;
this.first_indices = notes.first_indices;
this.last_note = notes.last_note;
this.last_indices = notes.last_indices;
return this;
}
// Apply the style of the `StaveLine` to the context
}, {
key: 'applyLineStyle',
value: function applyLineStyle() {
if (!this.context) {
throw new Vex.RERR('NoContext', 'No context to apply the styling to');
}
var render_options = this.render_options;
var ctx = this.context;
if (render_options.line_dash) {
ctx.setLineDash(render_options.line_dash);
}
if (render_options.line_width) {
ctx.setLineWidth(render_options.line_width);
}
if (render_options.rounded_end) {
ctx.setLineCap('round');
} else {
ctx.setLineCap('square');
}
}
// Apply the text styling to the context
}, {
key: 'applyFontStyle',
value: function applyFontStyle() {
if (!this.context) {
throw new Vex.RERR('NoContext', 'No context to apply the styling to');
}
var ctx = this.context;
if (this.font) {
ctx.setFont(this.font.family, this.font.size, this.font.weight);
}
if (this.render_options.color) {
ctx.setStrokeStyle(this.render_options.color);
ctx.setFillStyle(this.render_options.color);
}
}
// Renders the `StaveLine` on the context
}, {
key: 'draw',
value: function draw() {
var _this = this;
if (!this.context) {
throw new Vex.RERR('NoContext', 'No context to render StaveLine.');
}
var ctx = this.context;
var first_note = this.first_note;
var last_note = this.last_note;
var render_options = this.render_options;
ctx.save();
this.applyLineStyle();
// Cycle through each set of indices and draw lines
var start_position = void 0;
var end_position = void 0;
this.first_indices.forEach(function (first_index, i) {
var last_index = _this.last_indices[i];
// Get initial coordinates for the start/end of the line
start_position = first_note.getModifierStartXY(2, first_index);
end_position = last_note.getModifierStartXY(1, last_index);
var upwards_slope = start_position.y > end_position.y;
// Adjust `x` coordinates for modifiers
start_position.x += first_note.getMetrics().modRightPx + render_options.padding_left;
end_position.x -= last_note.getMetrics().modLeftPx + render_options.padding_right;
// Adjust first `x` coordinates for displacements
var notehead_width = first_note.getGlyph().head_width;
var first_displaced = first_note.getKeyProps()[first_index].displaced;
if (first_displaced && first_note.getStemDirection() === 1) {
start_position.x += notehead_width + render_options.padding_left;
}
// Adjust last `x` coordinates for displacements
var last_displaced = last_note.getKeyProps()[last_index].displaced;
if (last_displaced && last_note.getStemDirection() === -1) {
end_position.x -= notehead_width + render_options.padding_right;
}
// Adjust y position better if it's not coming from the center of the note
start_position.y += upwards_slope ? -3 : 1;
end_position.y += upwards_slope ? 2 : 0;
drawArrowLine(ctx, start_position, end_position, _this.render_options);
});
ctx.restore();
// Determine the x coordinate where to start the text
var text_width = ctx.measureText(this.text).width;
var justification = render_options.text_justification;
var x = 0;
if (justification === StaveLine.TextJustification.LEFT) {
x = start_position.x;
} else if (justification === StaveLine.TextJustification.CENTER) {
var delta_x = end_position.x - start_position.x;
var center_x = delta_x / 2 + start_position.x;
x = center_x - text_width / 2;
} else if (justification === StaveLine.TextJustification.RIGHT) {
x = end_position.x - text_width;
}
// Determine the y value to start the text
var y = void 0;
var vertical_position = render_options.text_position_vertical;
if (vertical_position === StaveLine.TextVerticalPosition.TOP) {
y = first_note.getStave().getYForTopText();
} else if (vertical_position === StaveLine.TextVerticalPosition.BOTTOM) {
y = first_note.getStave().getYForBottomText();
}
// Draw the text
ctx.save();
this.applyFontStyle();
ctx.fillText(this.text, x, y);
ctx.restore();
return this;
}
}]);
return StaveLine;
}();
// To enable logging for this class. Set `Vex.Flow.PedalMarking.DEBUG` to `true`.
function L$14() {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
if (PedalMarking.DEBUG) Vex.L('Vex.Flow.PedalMarking', args);
}
// Draws a pedal glyph with the provided `name` on a rendering `context`
// at the coordinates `x` and `y. Takes into account the glyph data
// coordinate shifts.
function drawPedalGlyph(name, context, x, y, point) {
var glyph_data = PedalMarking.GLYPHS[name];
var glyph = new Glyph(glyph_data.code, point);
glyph.render(context, x + glyph_data.x_shift, y + glyph_data.y_shift);
}
var PedalMarking = function () {
createClass(PedalMarking, null, [{
key: 'createSustain',
// Create a sustain pedal marking. Returns the defaults PedalMarking.
// Which uses the traditional "Ped" and "*"" markings.
value: function createSustain(notes) {
var pedal = new PedalMarking(notes);
return pedal;
}
// Create a sostenuto pedal marking
}, {
key: 'createSostenuto',
value: function createSostenuto(notes) {
var pedal = new PedalMarking(notes);
pedal.setStyle(PedalMarking.Styles.MIXED);
pedal.setCustomText('Sost. Ped.');
return pedal;
}
// Create an una corda pedal marking
}, {
key: 'createUnaCorda',
value: function createUnaCorda(notes) {
var pedal = new PedalMarking(notes);
pedal.setStyle(PedalMarking.Styles.TEXT);
pedal.setCustomText('una corda', 'tre corda');
return pedal;
}
// ## Prototype Methods
}, {
key: 'GLYPHS',
// Glyph data
get: function get() {
return {
'pedal_depress': {
code: 'v36',
x_shift: -10,
y_shift: 0
},
'pedal_release': {
code: 'v5d',
x_shift: -2,
y_shift: 3
}
};
}
}, {
key: 'Styles',
get: function get() {
return {
TEXT: 1,
BRACKET: 2,
MIXED: 3
};
}
}]);
function PedalMarking(notes) {
classCallCheck(this, PedalMarking);
this.notes = notes;
this.style = PedalMarking.TEXT;
this.line = 0;
// Custom text for the release/depress markings
this.custom_depress_text = '';
this.custom_release_text = '';
this.font = {
family: 'Times New Roman',
size: 12,
weight: 'italic bold'
};
this.render_options = {
bracket_height: 10,
text_margin_right: 6,
bracket_line_width: 1,
glyph_point_size: 40,
color: 'black'
};
}
// Set custom text for the `depress`/`release` pedal markings. No text is
// set if the parameter is falsy.
createClass(PedalMarking, [{
key: 'setCustomText',
value: function setCustomText(depress, release) {
this.custom_depress_text = depress || '';
this.custom_release_text = release || '';
return this;
}
// Set the pedal marking style
}, {
key: 'setStyle',
value: function setStyle(style) {
if (style < 1 && style > 3) {
throw new Vex.RERR('InvalidParameter', 'The style must be one found in PedalMarking.Styles');
}
this.style = style;
return this;
}
// Set the staff line to render the markings on
}, {
key: 'setLine',
value: function setLine(line) {
this.line = line;return this;
}
// Set the rendering context
}, {
key: 'setContext',
value: function setContext(context) {
this.context = context;return this;
}
// Draw the bracket based pedal markings
}, {
key: 'drawBracketed',
value: function drawBracketed() {
var ctx = this.context;
var is_pedal_depressed = false;
var prev_x = void 0;
var prev_y = void 0;
var pedal = this;
// Iterate through each note
this.notes.forEach(function (note, index, notes) {
// Each note triggers the opposite pedal action
is_pedal_depressed = !is_pedal_depressed;
// Get the initial coordinates for the note
var x = note.getAbsoluteX();
var y = note.getStave().getYForBottomText(pedal.line + 3);
// Throw if current note is positioned before the previous note
if (x < prev_x) {
throw new Vex.RERR('InvalidConfiguration', 'The notes provided must be in order of ascending x positions');
}
// Determine if the previous or next note are the same
// as the current note. We need to keep track of this for
// when adjustments are made for the release+depress action
var next_is_same = notes[index + 1] === note;
var prev_is_same = notes[index - 1] === note;
var x_shift = 0;
if (is_pedal_depressed) {
// Adjustment for release+depress
x_shift = prev_is_same ? 5 : 0;
if (pedal.style === PedalMarking.Styles.MIXED && !prev_is_same) {
// For MIXED style, start with text instead of bracket
if (pedal.custom_depress_text) {
// If we have custom text, use instead of the default "Ped" glyph
var text_width = ctx.measureText(pedal.custom_depress_text).width;
ctx.fillText(pedal.custom_depress_text, x - text_width / 2, y);
x_shift = text_width / 2 + pedal.render_options.text_margin_right;
} else {
// Render the Ped glyph in position
drawPedalGlyph('pedal_depress', ctx, x, y, pedal.render_options.glyph_point_size);
x_shift = 20 + pedal.render_options.text_margin_right;
}
} else {
// Draw start bracket
ctx.beginPath();
ctx.moveTo(x, y - pedal.render_options.bracket_height);
ctx.lineTo(x + x_shift, y);
ctx.stroke();
ctx.closePath();
}
} else {
// Adjustment for release+depress
x_shift = next_is_same ? -5 : 0;
// Draw end bracket
ctx.beginPath();
ctx.moveTo(prev_x, prev_y);
ctx.lineTo(x + x_shift, y);
ctx.lineTo(x, y - pedal.render_options.bracket_height);
ctx.stroke();
ctx.closePath();
}
// Store previous coordinates
prev_x = x + x_shift;
prev_y = y;
});
}
// Draw the text based pedal markings. This defaults to the traditional
// "Ped" and "*"" symbols if no custom text has been provided.
}, {
key: 'drawText',
value: function drawText() {
var ctx = this.context;
var is_pedal_depressed = false;
var pedal = this;
// The glyph point size
var point = pedal.render_options.glyph_point_size;
// Iterate through each note, placing glyphs or custom text accordingly
this.notes.forEach(function (note) {
is_pedal_depressed = !is_pedal_depressed;
var stave = note.getStave();
var x = note.getAbsoluteX();
var y = stave.getYForBottomText(pedal.line + 3);
var text_width = 0;
if (is_pedal_depressed) {
if (pedal.custom_depress_text) {
text_width = ctx.measureText(pedal.custom_depress_text).width;
ctx.fillText(pedal.custom_depress_text, x - text_width / 2, y);
} else {
drawPedalGlyph('pedal_depress', ctx, x, y, point);
}
} else {
if (pedal.custom_release_text) {
text_width = ctx.measureText(pedal.custom_release_text).width;
ctx.fillText(pedal.custom_release_text, x - text_width / 2, y);
} else {
drawPedalGlyph('pedal_release', ctx, x, y, point);
}
}
});
}
// Render the pedal marking in position on the rendering context
}, {
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoContext', "Can't draw PedalMarking without a context.");
}
var ctx = this.context;
ctx.save();
ctx.setStrokeStyle(this.render_options.color);
ctx.setFillStyle(this.render_options.color);
ctx.setFont(this.font.family, this.font.size, this.font.weight);
L$14('Rendering Pedal Marking');
if (this.style === PedalMarking.Styles.BRACKET || this.style === PedalMarking.Styles.MIXED) {
ctx.setLineWidth(this.render_options.bracket_line_width);
this.drawBracketed();
} else if (this.style === PedalMarking.Styles.TEXT) {
this.drawText();
}
ctx.restore();
}
}]);
return PedalMarking;
}();
// To enable logging for this class. Set `Vex.Flow.TextBracket.DEBUG` to `true`.
function L$15() {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
if (TextBracket.DEBUG) Vex.L('Vex.Flow.TextBracket', args);
}
var TextBracket = function () {
createClass(TextBracket, null, [{
key: 'Positions',
get: function get() {
return {
TOP: 1,
BOTTOM: -1
};
}
}]);
function TextBracket(bracket_data) {
classCallCheck(this, TextBracket);
this.start = bracket_data.start;
this.stop = bracket_data.stop;
this.text = bracket_data.text || '';
this.superscript = bracket_data.superscript || '';
this.position = bracket_data.position || TextBracket.Positions.TOP;
this.line = 1;
this.font = {
family: 'Serif',
size: 15,
weight: 'italic'
};
this.render_options = {
dashed: true,
dash: [5],
color: 'black',
line_width: 1,
show_bracket: true,
bracket_height: 8,
// In the BOTTOM position, the bracket line can extend
// under the superscript.
underline_superscript: true
};
}
// Apply the text backet styling to the provided `context`
createClass(TextBracket, [{
key: 'applyStyle',
value: function applyStyle(context) {
// Apply style for the octave bracket
context.setFont(this.font.family, this.font.size, this.font.weight);
context.setStrokeStyle(this.render_options.color);
context.setFillStyle(this.render_options.color);
context.setLineWidth(this.render_options.line_width);
return this;
}
// Set whether the bracket line should be `dashed`. You can also
// optionally set the `dash` pattern by passing in an array of numbers
}, {
key: 'setDashed',
value: function setDashed(dashed, dash) {
this.render_options.dashed = dashed;
if (dash) this.render_options.dash = dash;
return this;
}
// Set the font for the text
}, {
key: 'setFont',
value: function setFont(font) {
this.font = font;return this;
}
// Set the rendering `context` for the octave bracket
}, {
key: 'setContext',
value: function setContext(context) {
this.context = context;return this;
}
// Set the staff line to render the bracket on
}, {
key: 'setLine',
value: function setLine(line) {
this.line = line;return this;
}
// Draw the octave bracket on the rendering context
}, {
key: 'draw',
value: function draw() {
var ctx = this.context;
var y = 0;
switch (this.position) {
case TextBracket.Positions.TOP:
y = this.start.getStave().getYForTopText(this.line);
break;
case TextBracket.Positions.BOTTOM:
y = this.start.getStave().getYForBottomText(this.line);
break;
default:
throw new Vex.RERR('InvalidPosition', 'The position ' + this.position + ' is invalid');
}
// Get the preliminary start and stop coordintates for the bracket
var start = { x: this.start.getAbsoluteX(), y: y };
var stop = { x: this.stop.getAbsoluteX(), y: y };
L$15('Rendering TextBracket: start:', start, 'stop:', stop, 'y:', y);
var bracket_height = this.render_options.bracket_height * this.position;
ctx.save();
this.applyStyle(ctx);
// Draw text
ctx.fillText(this.text, start.x, start.y);
// Get the width and height for the octave number
var main_width = ctx.measureText(this.text).width;
var main_height = ctx.measureText('M').width;
// Calculate the y position for the super script
var super_y = start.y - main_height / 2.5;
// Draw the superscript
ctx.setFont(this.font.family, this.font.size / 1.4, this.font.weight);
ctx.fillText(this.superscript, start.x + main_width + 1, super_y);
// Determine width and height of the superscript
var superscript_width = ctx.measureText(this.superscript).width;
var super_height = ctx.measureText('M').width;
// Setup initial coordinates for the bracket line
var start_x = start.x;
var line_y = super_y;
var end_x = stop.x + this.stop.getGlyph().head_width;
// Adjust x and y coordinates based on position
if (this.position === TextBracket.Positions.TOP) {
start_x += main_width + superscript_width + 5;
line_y -= super_height / 2.7;
} else if (this.position === TextBracket.Positions.BOTTOM) {
line_y += super_height / 2.7;
start_x += main_width + 2;
if (!this.render_options.underline_superscript) {
start_x += superscript_width;
}
}
if (this.render_options.dashed) {
// Main line
Renderer.drawDashedLine(ctx, start_x, line_y, end_x, line_y, this.render_options.dash);
// Ending Bracket
if (this.render_options.show_bracket) {
Renderer.drawDashedLine(ctx, end_x, line_y + 1 * this.position, end_x, line_y + bracket_height, this.render_options.dash);
}
} else {
ctx.beginPath();
ctx.moveTo(start_x, line_y);
// Main line
ctx.lineTo(end_x, line_y);
if (this.render_options.show_bracket) {
// Ending bracket
ctx.lineTo(end_x, line_y + bracket_height);
}
ctx.stroke();
ctx.closePath();
}
ctx.restore();
}
}]);
return TextBracket;
}();
// To enable logging for this class. Set `Vex.Flow.BarNote.DEBUG` to `true`.
function L$16() {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
if (BarNote.DEBUG) Vex.L('Vex.Flow.BarNote', args);
}
var BarNote = function (_Note) {
inherits(BarNote, _Note);
function BarNote() {
classCallCheck(this, BarNote);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(BarNote).call(this, { duration: 'b' }));
var TYPE = Barline.type;
_this.metrics = {
widths: {}
};
// Defined this way to prevent lint errors.
_this.metrics.widths[TYPE.SINGLE] = 8;
_this.metrics.widths[TYPE.DOUBLE] = 12;
_this.metrics.widths[TYPE.END] = 15;
_this.metrics.widths[TYPE.REPEAT_BEGIN] = 14;
_this.metrics.widths[TYPE.REPEAT_END] = 14;
_this.metrics.widths[TYPE.REPEAT_BOTH] = 18;
_this.metrics.widths[TYPE.NONE] = 0;
// Tell the formatter that bar notes have no duration.
_this.ignore_ticks = true;
_this.type = TYPE.SINGLE;
// Set width to width of relevant `Barline`.
_this.setWidth(_this.metrics.widths[_this.type]);
return _this;
}
// Get and set the type of Bar note. `type` must be one of `Vex.Flow.Barline.type`.
createClass(BarNote, [{
key: 'getType',
value: function getType() {
return this.type;
}
}, {
key: 'setType',
value: function setType(type) {
this.type = type;
this.setWidth(this.metrics.widths[this.type]);
return this;
}
}, {
key: 'getBoundingBox',
value: function getBoundingBox() {
return new BoundingBox(0, 0, 0, 0);
}
}, {
key: 'addToModifierContext',
value: function addToModifierContext() {
/* overridden to ignore */
return this;
}
}, {
key: 'preFormat',
value: function preFormat() {
/* overridden to ignore */
this.setPreFormatted(true);
return this;
}
// Render note to stave.
}, {
key: 'draw',
value: function draw() {
if (!this.stave) throw new Vex.RERR('NoStave', "Can't draw without a stave.");
L$16('Rendering bar line at: ', this.getAbsoluteX());
var barline = new Barline(this.type);
barline.setX(this.getAbsoluteX());
barline.draw(this.stave);
}
}]);
return BarNote;
}(Note);
var GhostNote = function (_StemmableNote) {
inherits(GhostNote, _StemmableNote);
/** @constructor */
function GhostNote(parameter) {
classCallCheck(this, GhostNote);
// Sanity check
if (!parameter) {
throw new Vex.RuntimeError('BadArguments', 'Ghost note must have valid initialization data to identify ' + 'duration.');
}
var note_struct = void 0;
// Preserve backwards-compatibility
if (typeof parameter === 'string') {
note_struct = { duration: parameter };
} else if ((typeof parameter === 'undefined' ? 'undefined' : _typeof(parameter)) === 'object') {
note_struct = parameter;
} else {
throw new Vex.RuntimeError('BadArguments', 'Ghost note must have valid initialization data to identify ' + 'duration.');
}
// Note properties
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(GhostNote).call(this, note_struct));
_this.setWidth(0);
return _this;
}
createClass(GhostNote, [{
key: 'isRest',
value: function isRest() {
return true;
}
}, {
key: 'setStave',
value: function setStave(stave) {
get(Object.getPrototypeOf(GhostNote.prototype), 'setStave', this).call(this, stave);
}
}, {
key: 'addToModifierContext',
value: function addToModifierContext() {
/* intentionally overridden */return this;
}
}, {
key: 'preFormat',
value: function preFormat() {
this.setPreFormatted(true);
return this;
}
}, {
key: 'draw',
value: function draw() {
if (!this.stave) throw new Vex.RERR('NoStave', "Can't draw without a stave.");
// Draw the modifiers
for (var i = 0; i < this.modifiers.length; ++i) {
var modifier = this.modifiers[i];
modifier.setContext(this.context);
modifier.draw();
}
}
}]);
return GhostNote;
}(StemmableNote);
var Tremolo = function (_Modifier) {
inherits(Tremolo, _Modifier);
createClass(Tremolo, null, [{
key: 'CATEGORY',
get: function get() {
return 'tremolo';
}
}]);
function Tremolo(num) {
classCallCheck(this, Tremolo);
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(Tremolo).call(this));
_this.num = num;
_this.note = null;
_this.index = null;
_this.position = Modifier.Position.CENTER;
_this.code = 'v74';
_this.shift_right = -2;
_this.y_spacing = 4;
_this.render_options = {
font_scale: 35,
stroke_px: 3,
stroke_spacing: 10
};
_this.font = {
family: 'Arial',
size: 16,
weight: ''
};
return _this;
}
createClass(Tremolo, [{
key: 'getCategory',
value: function getCategory() {
return Tremolo.CATEGORY;
}
}, {
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoContext', "Can't draw Tremolo without a context.");
}
if (!(this.note && this.index != null)) {
throw new Vex.RERR('NoAttachedNote', "Can't draw Tremolo without a note and index.");
}
var start = this.note.getModifierStartXY(this.position, this.index);
var x = start.x;
var y = start.y;
x += this.shift_right;
for (var i = 0; i < this.num; ++i) {
Glyph.renderGlyph(this.context, x, y, this.render_options.font_scale, this.code);
y += this.y_spacing;
}
}
}]);
return Tremolo;
}(Modifier);
// To enable logging for this class. Set `Vex.Flow.Crescendo.DEBUG` to `true`.
function L$17() {
for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
args[_key] = arguments[_key];
}
if (Crescendo.DEBUG) Vex.L('Vex.Flow.Crescendo', args);
}
// Private helper to draw the hairpin
function renderHairpin(ctx, params) {
var begin_x = params.begin_x;
var end_x = params.end_x;
var y = params.y;
var half_height = params.height / 2;
ctx.beginPath();
if (params.reverse) {
ctx.moveTo(begin_x, y - half_height);
ctx.lineTo(end_x, y);
ctx.lineTo(begin_x, y + half_height);
} else {
ctx.moveTo(end_x, y - half_height);
ctx.lineTo(begin_x, y);
ctx.lineTo(end_x, y + half_height);
}
ctx.stroke();
ctx.closePath();
}
var Crescendo = function (_Note) {
inherits(Crescendo, _Note);
// Initialize the crescendo's properties
function Crescendo(note_struct) {
classCallCheck(this, Crescendo);
// Whether the object is a decrescendo
var _this = possibleConstructorReturn(this, Object.getPrototypeOf(Crescendo).call(this, note_struct));
_this.decrescendo = false;
// The staff line to be placed on
_this.line = note_struct.line || 0;
// The height at the open end of the cresc/decresc
_this.height = 15;
Vex.Merge(_this.render_options, {
// Extensions to the length of the crescendo on either side
extend_left: 0,
extend_right: 0,
// Vertical shift
y_shift: 0
});
return _this;
}
// Set the line to center the element on
createClass(Crescendo, [{
key: 'setLine',
value: function setLine(line) {
this.line = line;return this;
}
// Set the full height at the open end
}, {
key: 'setHeight',
value: function setHeight(height) {
this.height = height;return this;
}
// Set whether the sign should be a descresendo by passing a bool
// to `decresc`
}, {
key: 'setDecrescendo',
value: function setDecrescendo(decresc) {
this.decrescendo = decresc;
return this;
}
// Preformat the note
}, {
key: 'preFormat',
value: function preFormat() {
this.preFormatted = true;return this;
}
// Render the Crescendo object onto the canvas
}, {
key: 'draw',
value: function draw() {
if (!this.context) {
throw new Vex.RERR('NoContext', "Can't draw Hairpin without a context.");
}
var tick_context = this.getTickContext();
var next_context = TickContext.getNextContext(tick_context);
var begin_x = this.getAbsoluteX();
var end_x = next_context ? next_context.getX() : this.stave.x + this.stave.width;
var y = this.stave.getYForLine(this.line + -3) + 1;
L$17('Drawing ', this.decrescendo ? 'decrescendo ' : 'crescendo ', this.height, 'x', begin_x - end_x);
renderHairpin(this.context, {
begin_x: begin_x - this.render_options.extend_left,
end_x: end_x + this.render_options.extend_right,
y: y + this.render_options.y_shift,
height: this.height,
reverse: this.decrescendo
});
}
}]);
return Crescendo;
}(Note);
Vex.Flow = Flow;
Vex.Flow.Fraction = Fraction;
Vex.Flow.Renderer = Renderer;
Vex.Flow.Formatter = Formatter;
Vex.Flow.Music = Music;
Vex.Flow.Glyph = Glyph;
Vex.Flow.Stave = Stave;
Vex.Flow.StaveNote = StaveNote;
Vex.Flow.Voice = Voice;
Vex.Flow.Accidental = Accidental;
Vex.Flow.Beam = Beam;
Vex.Flow.StaveTie = StaveTie;
Vex.Flow.TabStave = TabStave;
Vex.Flow.TabNote = TabNote;
Vex.Flow.Bend = Bend;
Vex.Flow.Vibrato = Vibrato;
Vex.Flow.Note = Note;
Vex.Flow.ModifierContext = ModifierContext;
Vex.Flow.TickContext = TickContext;
Vex.Flow.Articulation = Articulation;
Vex.Flow.Annotation = Annotation;
Vex.Flow.Barline = Barline;
Vex.Flow.NoteHead = NoteHead;
Vex.Flow.StaveConnector = StaveConnector;
Vex.Flow.ClefNote = ClefNote;
Vex.Flow.KeySignature = KeySignature;
Vex.Flow.TimeSignature = TimeSignature;
Vex.Flow.TimeSigNote = TimeSigNote;
Vex.Flow.Stem = Stem;
Vex.Flow.TabTie = TabTie;
Vex.Flow.Clef = Clef;
Vex.Flow.Modifier = Modifier;
Vex.Flow.TabSlide = TabSlide;
Vex.Flow.Tuplet = Tuplet;
Vex.Flow.GraceNote = GraceNote;
Vex.Flow.Tuning = Tuning;
Vex.Flow.KeyManager = KeyManager;
Vex.Flow.StaveHairpin = StaveHairpin;
Vex.Flow.BoundingBox = BoundingBox;
Vex.Flow.Stroke = Stroke;
Vex.Flow.TextNote = TextNote;
Vex.Flow.Curve = Curve;
Vex.Flow.TextDynamics = TextDynamics;
Vex.Flow.StaveLine = StaveLine;
Vex.Flow.Ornament = Ornament;
Vex.Flow.PedalMarking = PedalMarking;
Vex.Flow.TextBracket = TextBracket;
Vex.Flow.FretHandFinger = FretHandFinger;
Vex.Flow.Repetition = Repetition;
Vex.Flow.BarNote = BarNote;
Vex.Flow.GhostNote = GhostNote;
Vex.Flow.GraceNoteGroup = GraceNoteGroup;
Vex.Flow.Tremolo = Tremolo;
Vex.Flow.StringNumber = StringNumber;
Vex.Flow.Crescendo = Crescendo;
Vex.Flow.Volta = Volta;
Vex.Flow.Font = Font;
return Vex;
}));
},{}],8:[function(require,module,exports){
var Artist, Vex, _,
slice = [].slice,
indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };
Vex = require('vexflow');
_ = require('lodash');
Artist = (function() {
var L, formatAndRender, getFingering, getScoreArticulationParts, getStrokeParts, makeBend, makeDuration, parseBool;
Artist.DEBUG = false;
L = function() {
var args;
args = 1 <= arguments.length ? slice.call(arguments, 0) : [];
if (Artist.DEBUG) {
return typeof console !== "undefined" && console !== null ? console.log.apply(console, ["(Vex.Flow.Artist)"].concat(slice.call(args))) : void 0;
}
};
Artist.NOLOGO = false;
function Artist(x, y, width1, options) {
this.x = x;
this.y = y;
this.width = width1;
this.options = {
font_face: "Arial",
font_size: 10,
font_style: null,
bottom_spacing: 20 + (Artist.NOLOGO ? 0 : 10),
tab_stave_lower_spacing: 10,
note_stave_lower_spacing: 0,
scale: 1.0
};
if (options != null) {
_.extend(this.options, options);
}
this.reset();
}
Artist.prototype.reset = function() {
this.tuning = new Vex.Flow.Tuning();
this.key_manager = new Vex.Flow.KeyManager("C");
this.music_api = new Vex.Flow.Music();
this.customizations = {
"font-size": this.options.font_size,
"font-face": this.options.font_face,
"font-style": this.options.font_style,
"annotation-position": "bottom",
"scale": this.options.scale,
"width": this.width,
"stave-distance": 0,
"space": 0,
"player": "false",
"tempo": 120,
"instrument": "acoustic_grand_piano",
"accidentals": "standard",
"tab-stems": "false",
"tab-stem-direction": "up",
"beam-rests": "true",
"beam-stemlets": "true",
"beam-middle-only": "false",
"connector-space": 5
};
this.staves = [];
this.tab_articulations = [];
this.stave_articulations = [];
this.player_voices = [];
this.last_y = this.y;
this.current_duration = "q";
this.current_clef = "treble";
this.current_bends = {};
this.current_octave_shift = 0;
this.bend_start_index = null;
this.bend_start_strings = null;
this.rendered = false;
return this.renderer_context = null;
};
Artist.prototype.attachPlayer = function(player) {
return this.player = player;
};
Artist.prototype.setOptions = function(options) {
var k, v, valid_options;
L("setOptions: ", options);
valid_options = _.keys(this.customizations);
for (k in options) {
v = options[k];
if (indexOf.call(valid_options, k) >= 0) {
this.customizations[k] = v;
} else {
throw new Vex.RERR("ArtistError", "Invalid option '" + k + "'");
}
}
this.last_y += parseInt(this.customizations.space, 10);
if (this.customizations.player === "true") {
return this.last_y += 15;
}
};
Artist.prototype.getPlayerData = function() {
return {
voices: this.player_voices,
context: this.renderer_context,
scale: this.customizations.scale
};
};
parseBool = function(str) {
return str === "true";
};
formatAndRender = function(ctx, tab, score, text_notes, customizations, options) {
var align_rests, beam_config, beams, format_stave, format_voices, formatter, i, j, l, len, len1, len2, m, multi_voice, notes, ref, ref1, score_stave, score_voices, stem_direction, tab_stave, tab_voices, text_stave, text_voices, voice;
if (tab != null) {
tab_stave = tab.stave;
}
if (score != null) {
score_stave = score.stave;
}
tab_voices = [];
score_voices = [];
text_voices = [];
beams = [];
format_stave = null;
text_stave = null;
beam_config = {
beam_rests: parseBool(customizations["beam-rests"]),
show_stemlets: parseBool(customizations["beam-stemlets"]),
beam_middle_only: parseBool(customizations["beam-middle-only"]),
groups: options.beam_groups
};
if (tab != null) {
multi_voice = tab.voices.length > 1 ? true : false;
ref = tab.voices;
for (i = j = 0, len = ref.length; j < len; i = ++j) {
notes = ref[i];
if (_.isEmpty(notes)) {
continue;
}
_.each(notes, function(note) {
return note.setStave(tab_stave);
});
voice = new Vex.Flow.Voice(Vex.Flow.TIME4_4).setMode(Vex.Flow.Voice.Mode.SOFT);
voice.addTickables(notes);
tab_voices.push(voice);
if (customizations["tab-stems"] === "true") {
if (multi_voice) {
beam_config.stem_direction = i === 0 ? 1 : -1;
} else {
beam_config.stem_direction = customizations["tab-stem-direction"] === "down" ? -1 : 1;
}
beam_config.beam_rests = false;
beams = beams.concat(Vex.Flow.Beam.generateBeams(voice.getTickables(), beam_config));
}
}
format_stave = tab_stave;
text_stave = tab_stave;
}
beam_config.beam_rests = parseBool(customizations["beam-rests"]);
if (score != null) {
multi_voice = score.voices.length > 1 ? true : false;
ref1 = score.voices;
for (i = l = 0, len1 = ref1.length; l < len1; i = ++l) {
notes = ref1[i];
if (_.isEmpty(notes)) {
continue;
}
stem_direction = i === 0 ? 1 : -1;
_.each(notes, function(note) {
return note.setStave(score_stave);
});
voice = new Vex.Flow.Voice(Vex.Flow.TIME4_4).setMode(Vex.Flow.Voice.Mode.SOFT);
voice.addTickables(notes);
score_voices.push(voice);
if (multi_voice) {
beam_config.stem_direction = stem_direction;
beams = beams.concat(Vex.Flow.Beam.generateBeams(notes, beam_config));
} else {
beam_config.stem_direction = null;
beams = beams.concat(Vex.Flow.Beam.generateBeams(notes, beam_config));
}
}
format_stave = score_stave;
text_stave = score_stave;
}
for (m = 0, len2 = text_notes.length; m < len2; m++) {
notes = text_notes[m];
if (_.isEmpty(notes)) {
continue;
}
_.each(notes, function(voice) {
return voice.setStave(text_stave);
});
voice = new Vex.Flow.Voice(Vex.Flow.TIME4_4).setMode(Vex.Flow.Voice.Mode.SOFT);
voice.addTickables(notes);
text_voices.push(voice);
}
if (format_stave != null) {
format_voices = [];
formatter = new Vex.Flow.Formatter();
align_rests = false;
if (tab != null) {
if (!_.isEmpty(tab_voices)) {
formatter.joinVoices(tab_voices);
}
format_voices = tab_voices;
}
if (score != null) {
if (!_.isEmpty(score_voices)) {
formatter.joinVoices(score_voices);
}
format_voices = format_voices.concat(score_voices);
if (score_voices.length > 1) {
align_rests = true;
}
}
if (!_.isEmpty(text_notes) && !_.isEmpty(text_voices)) {
formatter.joinVoices(text_voices);
format_voices = format_voices.concat(text_voices);
}
if (!_.isEmpty(format_voices)) {
formatter.formatToStave(format_voices, format_stave, {
align_rests: align_rests
});
}
if (tab != null) {
_.each(tab_voices, function(voice) {
return voice.draw(ctx, tab_stave);
});
}
if (score != null) {
_.each(score_voices, function(voice) {
return voice.draw(ctx, score_stave);
});
}
_.each(beams, function(beam) {
return beam.setContext(ctx).draw();
});
if (!_.isEmpty(text_notes)) {
_.each(text_voices, function(voice) {
return voice.draw(ctx, text_stave);
});
}
if ((tab != null) && (score != null)) {
(new Vex.Flow.StaveConnector(score.stave, tab.stave)).setType(Vex.Flow.StaveConnector.type.BRACKET).setContext(ctx).draw();
}
if (score != null) {
return score_voices;
} else {
return tab_voices;
}
}
};
Artist.prototype.render = function(renderer) {
var LOGO, articulation, ctx, j, l, len, len1, len2, m, ref, ref1, ref2, setBar, stave, voices, width;
L("Render: ", this.options);
this.closeBends();
renderer.resize(this.customizations.width * this.customizations.scale, (this.last_y + this.options.bottom_spacing) * this.customizations.scale);
ctx = renderer.getContext();
ctx.scale(this.customizations.scale, this.customizations.scale);
ctx.clear();
ctx.setFont(this.options.font_face, this.options.font_size, "");
this.renderer_context = ctx;
setBar = function(stave, notes) {
var last_note;
last_note = _.last(notes);
if (last_note instanceof Vex.Flow.BarNote) {
notes.pop();
return stave.setEndBarType(last_note.getType());
}
};
ref = this.staves;
for (j = 0, len = ref.length; j < len; j++) {
stave = ref[j];
L("Rendering staves.");
if (stave.tab != null) {
setBar(stave.tab, stave.tab_notes);
}
if (stave.note != null) {
setBar(stave.note, stave.note_notes);
}
if (stave.tab != null) {
stave.tab.setContext(ctx).draw();
}
if (stave.note != null) {
stave.note.setContext(ctx).draw();
}
stave.tab_voices.push(stave.tab_notes);
stave.note_voices.push(stave.note_notes);
voices = formatAndRender(ctx, stave.tab != null ? {
stave: stave.tab,
voices: stave.tab_voices
} : null, stave.note != null ? {
stave: stave.note,
voices: stave.note_voices
} : null, stave.text_voices, this.customizations, {
beam_groups: stave.beam_groups
});
this.player_voices.push(voices);
}
L("Rendering tab articulations.");
ref1 = this.tab_articulations;
for (l = 0, len1 = ref1.length; l < len1; l++) {
articulation = ref1[l];
articulation.setContext(ctx).draw();
}
L("Rendering note articulations.");
ref2 = this.stave_articulations;
for (m = 0, len2 = ref2.length; m < len2; m++) {
articulation = ref2[m];
articulation.setContext(ctx).draw();
}
if (this.player != null) {
if (this.customizations.player === "true") {
this.player.setTempo(parseInt(this.customizations.tempo, 10));
this.player.setInstrument(this.customizations.instrument);
this.player.render();
} else {
this.player.removeControls();
}
}
this.rendered = true;
if (!Artist.NOLOGO) {
LOGO = "vexflow.com";
width = ctx.measureText(LOGO).width;
ctx.save();
ctx.setFont("Times", 10, "italic");
ctx.fillText(LOGO, (this.customizations.width - width) / 2, this.last_y + 25);
return ctx.restore();
}
};
Artist.prototype.isRendered = function() {
return this.rendered;
};
Artist.prototype.draw = function(renderer) {
return this.render(renderer);
};
Artist.prototype.getNoteForFret = function(fret, string) {
var accidental, new_note, new_octave, new_root, old_root, selected_note, spec, spec_props;
spec = this.tuning.getNoteForFret(fret, string);
spec_props = Vex.Flow.keyProperties(spec);
selected_note = this.key_manager.selectNote(spec_props.key);
accidental = null;
switch (this.customizations.accidentals) {
case "standard":
if (selected_note.change) {
accidental = selected_note.accidental != null ? selected_note.accidental : "n";
}
break;
case "cautionary":
if (selected_note.change) {
accidental = selected_note.accidental != null ? selected_note.accidental : "n";
} else {
accidental = selected_note.accidental != null ? selected_note.accidental + "_c" : void 0;
}
break;
default:
throw new Vex.RERR("ArtistError", "Invalid value for option 'accidentals': " + this.customizations.accidentals);
}
new_note = selected_note.note;
new_octave = spec_props.octave;
old_root = this.music_api.getNoteParts(spec_props.key).root;
new_root = this.music_api.getNoteParts(selected_note.note).root;
if (new_root === "b" && old_root === "c") {
new_octave--;
} else if (new_root === "c" && old_root === "b") {
new_octave++;
}
return [new_note, new_octave, accidental];
};
Artist.prototype.getNoteForABC = function(abc, string) {
var accidental, key, octave;
key = abc.key;
octave = string;
accidental = abc.accidental;
if (abc.accidental_type != null) {
accidental += "_" + abc.accidental_type;
}
return [key, octave, accidental];
};
Artist.prototype.addStaveNote = function(note_params) {
var acc, index, j, len, new_accidental, params, parts, ref, stave_note, stave_notes;
params = {
is_rest: false,
play_note: null
};
_.extend(params, note_params);
stave_notes = _.last(this.staves).note_notes;
stave_note = new Vex.Flow.StaveNote({
keys: params.spec,
duration: this.current_duration + (params.is_rest ? "r" : ""),
clef: params.is_rest ? "treble" : this.current_clef,
auto_stem: params.is_rest ? false : true
});
ref = params.accidentals;
for (index = j = 0, len = ref.length; j < len; index = ++j) {
acc = ref[index];
if (acc != null) {
parts = acc.split("_");
new_accidental = new Vex.Flow.Accidental(parts[0]);
if (parts.length > 1 && parts[1] === "c") {
new_accidental.setAsCautionary();
}
stave_note.addAccidental(index, new_accidental);
}
}
if (this.current_duration[this.current_duration.length - 1] === "d") {
stave_note.addDotToAll();
}
if (params.play_note != null) {
stave_note.setPlayNote(params.play_note);
}
return stave_notes.push(stave_note);
};
Artist.prototype.addTabNote = function(spec, play_note) {
var new_tab_note, tab_notes;
if (play_note == null) {
play_note = null;
}
tab_notes = _.last(this.staves).tab_notes;
new_tab_note = new Vex.Flow.TabNote({
positions: spec,
duration: this.current_duration
}, this.customizations["tab-stems"] === "true");
if (play_note != null) {
new_tab_note.setPlayNote(play_note);
}
tab_notes.push(new_tab_note);
if (this.current_duration[this.current_duration.length - 1] === "d") {
return new_tab_note.addDot();
}
};
makeDuration = function(time, dot) {
return time + (dot ? "d" : "");
};
Artist.prototype.setDuration = function(time, dot) {
var t;
if (dot == null) {
dot = false;
}
t = time.split(/\s+/);
L("setDuration: ", t[0], dot);
return this.current_duration = makeDuration(t[0], dot);
};
Artist.prototype.addBar = function(type) {
var TYPE, bar_note, stave;
L("addBar: ", type);
this.closeBends();
this.key_manager.reset();
stave = _.last(this.staves);
TYPE = Vex.Flow.Barline.type;
type = (function() {
switch (type) {
case "single":
return TYPE.SINGLE;
case "double":
return TYPE.DOUBLE;
case "end":
return TYPE.END;
case "repeat-begin":
return TYPE.REPEAT_BEGIN;
case "repeat-end":
return TYPE.REPEAT_END;
case "repeat-both":
return TYPE.REPEAT_BOTH;
default:
return TYPE.SINGLE;
}
})();
bar_note = new Vex.Flow.BarNote().setType(type);
stave.tab_notes.push(bar_note);
if (stave.note != null) {
return stave.note_notes.push(bar_note);
}
};
makeBend = function(from_fret, to_fret) {
var direction, text;
direction = Vex.Flow.Bend.UP;
text = "";
if (parseInt(from_fret, 10) > parseInt(to_fret, 10)) {
direction = Vex.Flow.Bend.DOWN;
} else {
text = (function() {
switch (Math.abs(to_fret - from_fret)) {
case 1:
return "1/2";
case 2:
return "Full";
case 3:
return "1 1/2";
default:
return "Bend to " + to_fret;
}
})();
}
return {
type: direction,
text: text
};
};
Artist.prototype.openBends = function(first_note, last_note, first_indices, last_indices) {
var base, first_frets, from_fret, i, index, j, last_frets, last_index, len, results, start_indices, start_note, tab_notes, to_fret;
L("openBends", first_note, last_note, first_indices, last_indices);
tab_notes = _.last(this.staves).tab_notes;
start_note = first_note;
start_indices = first_indices;
if (_.isEmpty(this.current_bends)) {
this.bend_start_index = tab_notes.length - 2;
this.bend_start_strings = first_indices;
} else {
start_note = tab_notes[this.bend_start_index];
start_indices = this.bend_start_strings;
}
first_frets = start_note.getPositions();
last_frets = last_note.getPositions();
results = [];
for (i = j = 0, len = start_indices.length; j < len; i = ++j) {
index = start_indices[i];
last_index = last_indices[i];
from_fret = first_note.getPositions()[first_indices[i]];
to_fret = last_frets[last_index];
if ((base = this.current_bends)[index] == null) {
base[index] = [];
}
results.push(this.current_bends[index].push(makeBend(from_fret.fret, to_fret.fret)));
}
return results;
};
Artist.prototype.closeBends = function(offset) {
var bend, j, k, l, len, len1, phrase, ref, ref1, tab_note, tab_notes, v;
if (offset == null) {
offset = 1;
}
if (this.bend_start_index == null) {
return;
}
L("closeBends(" + offset + ")");
tab_notes = _.last(this.staves).tab_notes;
ref = this.current_bends;
for (k in ref) {
v = ref[k];
phrase = [];
for (j = 0, len = v.length; j < len; j++) {
bend = v[j];
phrase.push(bend);
}
tab_notes[this.bend_start_index].addModifier(new Vex.Flow.Bend(null, null, phrase), k);
}
ref1 = tab_notes.slice(this.bend_start_index + 1, +((tab_notes.length - 2) + offset) + 1 || 9e9);
for (l = 0, len1 = ref1.length; l < len1; l++) {
tab_note = ref1[l];
tab_note.setGhost(true);
}
this.current_bends = {};
return this.bend_start_index = null;
};
Artist.prototype.makeTuplets = function(tuplets, notes) {
var modifier, stave_notes, tab_modifier, tab_notes;
L("makeTuplets", tuplets, notes);
if (notes == null) {
notes = tuplets;
}
if (!_.last(this.staves).note) {
return;
}
stave_notes = _.last(this.staves).note_notes;
tab_notes = _.last(this.staves).tab_notes;
if (stave_notes.length < notes) {
throw new Vex.RERR("ArtistError", "Not enough notes for tuplet");
}
modifier = new Vex.Flow.Tuplet(stave_notes.slice(stave_notes.length - notes), {
num_notes: tuplets
});
this.stave_articulations.push(modifier);
tab_modifier = new Vex.Flow.Tuplet(tab_notes.slice(tab_notes.length - notes), {
num_notes: tuplets
});
if (this.customizations["tab-stems"] === "true") {
return this.tab_articulations.push(tab_modifier);
}
};
getFingering = function(text) {
return text.match(/^\.fingering\/([^.]+)\./);
};
Artist.prototype.makeFingering = function(text) {
var POS, badFingering, finger, fingering, fingers, j, len, modifier, note_number, number, p, parts, pieces, position;
parts = getFingering(text);
POS = Vex.Flow.Modifier.Position;
fingers = [];
fingering = [];
if (parts != null) {
fingers = (function() {
var j, len, ref, results;
ref = parts[1].split(/-/);
results = [];
for (j = 0, len = ref.length; j < len; j++) {
p = ref[j];
results.push(p.trim());
}
return results;
})();
} else {
return null;
}
badFingering = function() {
return new Vex.RERR("ArtistError", "Bad fingering: " + parts[1]);
};
for (j = 0, len = fingers.length; j < len; j++) {
finger = fingers[j];
pieces = finger.match(/(\d+):([ablr]):([fs]):([^-.]+)/);
if (pieces == null) {
throw badFingering();
}
note_number = parseInt(pieces[1], 10) - 1;
position = POS.RIGHT;
switch (pieces[2]) {
case "l":
position = POS.LEFT;
break;
case "r":
position = POS.RIGHT;
break;
case "a":
position = POS.ABOVE;
break;
case "b":
position = POS.BELOW;
}
modifier = null;
number = pieces[4];
switch (pieces[3]) {
case "s":
modifier = new Vex.Flow.StringNumber(number).setPosition(position);
break;
case "f":
modifier = new Vex.Flow.FretHandFinger(number).setPosition(position);
}
fingering.push({
num: note_number,
modifier: modifier
});
}
return fingering;
};
getStrokeParts = function(text) {
return text.match(/^\.stroke\/([^.]+)\./);
};
Artist.prototype.makeStroke = function(text) {
var TYPE, parts, type;
parts = getStrokeParts(text);
TYPE = Vex.Flow.Stroke.Type;
type = null;
if (parts != null) {
switch (parts[1]) {
case "bu":
type = TYPE.BRUSH_UP;
break;
case "bd":
type = TYPE.BRUSH_DOWN;
break;
case "ru":
type = TYPE.ROLL_UP;
break;
case "rd":
type = TYPE.ROLL_DOWN;
break;
case "qu":
type = TYPE.RASQUEDO_UP;
break;
case "qd":
type = TYPE.RASQUEDO_DOWN;
break;
default:
throw new Vex.RERR("ArtistError", "Invalid stroke type: " + parts[1]);
}
return new Vex.Flow.Stroke(type);
} else {
return null;
}
};
getScoreArticulationParts = function(text) {
return text.match(/^\.(a[^\/]*)\/(t|b)[^.]*\./);
};
Artist.prototype.makeScoreArticulation = function(text) {
var POSTYPE, parts, pos, position, type;
parts = getScoreArticulationParts(text);
if (parts != null) {
type = parts[1];
position = parts[2];
POSTYPE = Vex.Flow.Modifier.Position;
pos = position === "t" ? POSTYPE.ABOVE : POSTYPE.BELOW;
return new Vex.Flow.Articulation(type).setPosition(pos);
} else {
return null;
}
};
Artist.prototype.makeAnnotation = function(text) {
var VJUST, aposition, default_vjust, font_face, font_size, font_style, just, makeIt, parts;
font_face = this.customizations["font-face"];
font_size = this.customizations["font-size"];
font_style = this.customizations["font-style"];
aposition = this.customizations["annotation-position"];
VJUST = Vex.Flow.Annotation.VerticalJustify;
default_vjust = aposition === "top" ? VJUST.TOP : VJUST.BOTTOM;
makeIt = function(text, just) {
if (just == null) {
just = default_vjust;
}
return new Vex.Flow.Annotation(text).setFont(font_face, font_size, font_style).setVerticalJustification(just);
};
parts = text.match(/^\.([^-]*)-([^-]*)-([^.]*)\.(.*)/);
if (parts != null) {
font_face = parts[1];
font_size = parts[2];
font_style = parts[3];
text = parts[4];
if (text) {
return makeIt(text);
} else {
return null;
}
}
parts = text.match(/^\.([^.]*)\.(.*)/);
if (parts != null) {
just = default_vjust;
text = parts[2];
switch (parts[1]) {
case "big":
font_style = "bold";
font_size = "14";
break;
case "italic":
case "italics":
font_face = "Times";
font_style = "italic";
break;
case "medium":
font_size = "12";
break;
case "top":
just = VJUST.TOP;
this.customizations["annotation-position"] = "top";
break;
case "bottom":
just = VJUST.BOTTOM;
this.customizations["annotation-position"] = "bottom";
}
if (text) {
return makeIt(text, just);
} else {
return null;
}
}
return makeIt(text);
};
Artist.prototype.addAnnotations = function(annotations) {
var annotation, e, error, fingering, fingerings, i, j, l, len, len1, len2, m, note, ref, ref1, ref2, results, score_articulation, stave, stave_notes, stroke, tab_note, tab_notes;
stave = _.last(this.staves);
stave_notes = stave.note_notes;
tab_notes = stave.tab_notes;
if (annotations.length > tab_notes.length) {
throw new Vex.RERR("ArtistError", "More annotations than note elements");
}
if (stave.tab) {
ref = tab_notes.slice(tab_notes.length - annotations.length);
for (i = j = 0, len = ref.length; j < len; i = ++j) {
tab_note = ref[i];
if (getScoreArticulationParts(annotations[i])) {
score_articulation = this.makeScoreArticulation(annotations[i]);
tab_note.addModifier(score_articulation, 0);
} else if (getStrokeParts(annotations[i])) {
stroke = this.makeStroke(annotations[i]);
tab_note.addModifier(stroke, 0);
} else {
annotation = this.makeAnnotation(annotations[i]);
if (annotation) {
tab_note.addModifier(this.makeAnnotation(annotations[i]), 0);
}
}
}
} else {
ref1 = stave_notes.slice(stave_notes.length - annotations.length);
for (i = l = 0, len1 = ref1.length; l < len1; i = ++l) {
note = ref1[i];
if (!getScoreArticulationParts(annotations[i])) {
annotation = this.makeAnnotation(annotations[i]);
if (annotation) {
note.addAnnotation(0, this.makeAnnotation(annotations[i]));
}
}
}
}
if (stave.note) {
ref2 = stave_notes.slice(stave_notes.length - annotations.length);
results = [];
for (i = m = 0, len2 = ref2.length; m < len2; i = ++m) {
note = ref2[i];
score_articulation = this.makeScoreArticulation(annotations[i]);
if (score_articulation != null) {
note.addArticulation(0, score_articulation);
}
stroke = this.makeStroke(annotations[i]);
if (stroke != null) {
note.addStroke(0, stroke);
}
fingerings = this.makeFingering(annotations[i]);
if (fingerings != null) {
try {
results.push((function() {
var len3, o, results1;
results1 = [];
for (o = 0, len3 = fingerings.length; o < len3; o++) {
fingering = fingerings[o];
results1.push(note.addModifier(fingering.num, fingering.modifier));
}
return results1;
})());
} catch (error) {
e = error;
throw new Vex.RERR("ArtistError", "Bad note number in fingering: " + annotations[i]);
}
} else {
results.push(void 0);
}
}
return results;
}
};
Artist.prototype.addTabArticulation = function(type, first_note, last_note, first_indices, last_indices) {
var articulation;
L("addTabArticulations: ", type, first_note, last_note, first_indices, last_indices);
if (type === "t") {
last_note.addModifier(new Vex.Flow.Annotation("T").setVerticalJustification(Vex.Flow.Annotation.VerticalJustify.BOTTOM));
}
if (_.isEmpty(first_indices) && _.isEmpty(last_indices)) {
return;
}
articulation = null;
if (type === "s") {
articulation = new Vex.Flow.TabSlide({
first_note: first_note,
last_note: last_note,
first_indices: first_indices,
last_indices: last_indices
});
}
if (type === "h" || type === "p") {
articulation = new Vex.Flow.TabTie({
first_note: first_note,
last_note: last_note,
first_indices: first_indices,
last_indices: last_indices
}, type.toUpperCase());
}
if (type === "T" || type === "t") {
articulation = new Vex.Flow.TabTie({
first_note: first_note,
last_note: last_note,
first_indices: first_indices,
last_indices: last_indices
}, " ");
}
if (type === "b") {
this.openBends(first_note, last_note, first_indices, last_indices);
}
if (articulation != null) {
return this.tab_articulations.push(articulation);
}
};
Artist.prototype.addStaveArticulation = function(type, first_note, last_note, first_indices, last_indices) {
var articulation;
L("addStaveArticulations: ", type, first_note, last_note, first_indices, last_indices);
articulation = null;
if (type === "b" || type === "s" || type === "h" || type === "p" || type === "t" || type === "T") {
articulation = new Vex.Flow.StaveTie({
first_note: first_note,
last_note: last_note,
first_indices: first_indices,
last_indices: last_indices
});
}
if (articulation != null) {
return this.stave_articulations.push(articulation);
}
};
Artist.prototype.getPreviousNoteIndex = function() {
var index, note, tab_notes;
tab_notes = _.last(this.staves).tab_notes;
index = 2;
while (index <= tab_notes.length) {
note = tab_notes[tab_notes.length - index];
if (note instanceof Vex.Flow.TabNote) {
return tab_notes.length - index;
}
index++;
}
return -1;
};
Artist.prototype.addDecorator = function(decorator) {
var modifier, ref, score_modifier, score_notes, stave, tab_notes;
L("addDecorator: ", decorator);
if (decorator == null) {
return;
}
stave = _.last(this.staves);
tab_notes = stave.tab_notes;
score_notes = stave.note_notes;
modifier = null;
score_modifier = null;
if (decorator === "v") {
modifier = new Vex.Flow.Vibrato();
}
if (decorator === "V") {
modifier = new Vex.Flow.Vibrato().setHarsh(true);
}
if (decorator === "u") {
modifier = new Vex.Flow.Articulation("a|").setPosition(Vex.Flow.Modifier.Position.BOTTOM);
score_modifier = new Vex.Flow.Articulation("a|").setPosition(Vex.Flow.Modifier.Position.BOTTOM);
}
if (decorator === "d") {
modifier = new Vex.Flow.Articulation("am").setPosition(Vex.Flow.Modifier.Position.BOTTOM);
score_modifier = new Vex.Flow.Articulation("am").setPosition(Vex.Flow.Modifier.Position.BOTTOM);
}
if (modifier != null) {
_.last(tab_notes).addModifier(modifier, 0);
}
if (score_modifier != null) {
return (ref = _.last(score_notes)) != null ? ref.addArticulation(0, score_modifier) : void 0;
}
};
Artist.prototype.addArticulations = function(articulations) {
var art, current_indices, current_tab_note, has_bends, i, indices, j, len, n, pos, prev_index, prev_indices, prev_tab_note, ref, stave, stave_notes, tab_notes, this_strings, valid_articulation, valid_strings;
L("addArticulations: ", articulations);
stave = _.last(this.staves);
tab_notes = stave.tab_notes;
stave_notes = stave.note_notes;
if (_.isEmpty(tab_notes) || _.isEmpty(articulations)) {
this.closeBends(0);
return;
}
current_tab_note = _.last(tab_notes);
has_bends = false;
ref = ["b", "s", "h", "p", "t", "T", "v", "V"];
for (j = 0, len = ref.length; j < len; j++) {
valid_articulation = ref[j];
indices = (function() {
var l, len1, results;
results = [];
for (i = l = 0, len1 = articulations.length; l < len1; i = ++l) {
art = articulations[i];
if ((art != null) && art === valid_articulation) {
results.push(i);
}
}
return results;
})();
if (_.isEmpty(indices)) {
continue;
}
if (valid_articulation === "b") {
has_bends = true;
}
prev_index = this.getPreviousNoteIndex();
if (prev_index === -1) {
prev_tab_note = null;
prev_indices = null;
} else {
prev_tab_note = tab_notes[prev_index];
this_strings = (function() {
var l, len1, ref1, results;
ref1 = current_tab_note.getPositions();
results = [];
for (i = l = 0, len1 = ref1.length; l < len1; i = ++l) {
n = ref1[i];
if (indexOf.call(indices, i) >= 0) {
results.push(n.str);
}
}
return results;
})();
valid_strings = (function() {
var l, len1, ref1, ref2, results;
ref1 = prev_tab_note.getPositions();
results = [];
for (i = l = 0, len1 = ref1.length; l < len1; i = ++l) {
pos = ref1[i];
if (ref2 = pos.str, indexOf.call(this_strings, ref2) >= 0) {
results.push(pos.str);
}
}
return results;
})();
prev_indices = (function() {
var l, len1, ref1, ref2, results;
ref1 = prev_tab_note.getPositions();
results = [];
for (i = l = 0, len1 = ref1.length; l < len1; i = ++l) {
n = ref1[i];
if (ref2 = n.str, indexOf.call(valid_strings, ref2) >= 0) {
results.push(i);
}
}
return results;
})();
current_indices = (function() {
var l, len1, ref1, ref2, results;
ref1 = current_tab_note.getPositions();
results = [];
for (i = l = 0, len1 = ref1.length; l < len1; i = ++l) {
n = ref1[i];
if (ref2 = n.str, indexOf.call(valid_strings, ref2) >= 0) {
results.push(i);
}
}
return results;
})();
}
if (stave.tab != null) {
this.addTabArticulation(valid_articulation, prev_tab_note, current_tab_note, prev_indices, current_indices);
}
if (stave.note != null) {
this.addStaveArticulation(valid_articulation, stave_notes[prev_index], _.last(stave_notes), prev_indices, current_indices);
}
}
if (!has_bends) {
return this.closeBends(0);
}
};
Artist.prototype.addRest = function(params) {
var position, tab_note, tab_notes;
L("addRest: ", params);
this.closeBends();
if (params["position"] === 0) {
this.addStaveNote({
spec: ["r/4"],
accidentals: [],
is_rest: true
});
} else {
position = this.tuning.getNoteForFret((parseInt(params["position"], 10) + 5) * 2, 6);
this.addStaveNote({
spec: [position],
accidentals: [],
is_rest: true
});
}
tab_notes = _.last(this.staves).tab_notes;
if (this.customizations["tab-stems"] === "true") {
tab_note = new Vex.Flow.StaveNote({
keys: [position || "r/4"],
duration: this.current_duration + "r",
clef: "treble",
auto_stem: false
});
if (this.current_duration[this.current_duration.length - 1] === "d") {
tab_note.addDot(0);
}
return tab_notes.push(tab_note);
} else {
return tab_notes.push(new Vex.Flow.GhostNote(this.current_duration));
}
};
Artist.prototype.addChord = function(chord, chord_articulation, chord_decorator) {
var acc, accidental, accidentals, art, articulations, current_duration, current_position, current_string, decorators, durations, i, j, l, len, len1, m, new_note, new_octave, note, num, num_notes, octave, play_note, play_notes, play_octave, ref, ref1, ref2, ref3, saved_duration, spec, specs, stave, tab_specs;
if (_.isEmpty(chord)) {
return;
}
L("addChord: ", chord);
stave = _.last(this.staves);
specs = [];
play_notes = [];
accidentals = [];
articulations = [];
decorators = [];
tab_specs = [];
durations = [];
num_notes = 0;
current_string = _.first(chord).string;
current_position = 0;
for (j = 0, len = chord.length; j < len; j++) {
note = chord[j];
num_notes++;
if ((note.abc != null) || note.string !== current_string) {
current_position = 0;
current_string = note.string;
}
if (specs[current_position] == null) {
specs[current_position] = [];
play_notes[current_position] = [];
accidentals[current_position] = [];
tab_specs[current_position] = [];
articulations[current_position] = [];
decorators[current_position] = [];
}
ref = [null, null, null], new_note = ref[0], new_octave = ref[1], accidental = ref[2];
play_note = null;
if (note.abc != null) {
octave = note.octave != null ? note.octave : note.string;
ref1 = this.getNoteForABC(note.abc, octave), new_note = ref1[0], new_octave = ref1[1], accidental = ref1[2];
if (accidental != null) {
acc = accidental.split("_")[0];
} else {
acc = "";
}
play_note = "" + new_note + acc;
if (note.fret == null) {
note.fret = 'X';
}
} else if (note.fret != null) {
ref2 = this.getNoteForFret(note.fret, note.string), new_note = ref2[0], new_octave = ref2[1], accidental = ref2[2];
play_note = this.tuning.getNoteForFret(note.fret, note.string).split("/")[0];
} else {
throw new Vex.RERR("ArtistError", "No note specified");
}
play_octave = parseInt(new_octave, 10) + this.current_octave_shift;
current_duration = note.time != null ? {
time: note.time,
dot: note.dot
} : null;
specs[current_position].push(new_note + "/" + new_octave);
play_notes[current_position].push(play_note + "/" + play_octave);
accidentals[current_position].push(accidental);
tab_specs[current_position].push({
fret: note.fret,
str: note.string
});
if (note.articulation != null) {
articulations[current_position].push(note.articulation);
}
durations[current_position] = current_duration;
if (note.decorator != null) {
decorators[current_position] = note.decorator;
}
current_position++;
}
for (i = l = 0, len1 = specs.length; l < len1; i = ++l) {
spec = specs[i];
saved_duration = this.current_duration;
if (durations[i] != null) {
this.setDuration(durations[i].time, durations[i].dot);
}
this.addTabNote(tab_specs[i], play_notes[i]);
if (stave.note != null) {
this.addStaveNote({
spec: spec,
accidentals: accidentals[i],
play_note: play_notes[i]
});
}
this.addArticulations(articulations[i]);
if (decorators[i] != null) {
this.addDecorator(decorators[i]);
}
}
if (chord_articulation != null) {
art = [];
for (num = m = 1, ref3 = num_notes; 1 <= ref3 ? m <= ref3 : m >= ref3; num = 1 <= ref3 ? ++m : --m) {
art.push(chord_articulation);
}
this.addArticulations(art);
}
if (chord_decorator != null) {
return this.addDecorator(chord_decorator);
}
};
Artist.prototype.addNote = function(note) {
return this.addChord([note]);
};
Artist.prototype.addTextVoice = function() {
return _.last(this.staves).text_voices.push([]);
};
Artist.prototype.setTextFont = function(font) {
var parts;
if (font != null) {
parts = font.match(/([^-]*)-([^-]*)-([^.]*)/);
if (parts != null) {
this.customizations["font-face"] = parts[1];
this.customizations["font-size"] = parseInt(parts[2], 10);
return this.customizations["font-style"] = parts[3];
}
}
};
Artist.prototype.addTextNote = function(text, position, justification, smooth, ignore_ticks) {
var duration, font_face, font_size, font_style, just, note, struct, voices;
if (position == null) {
position = 0;
}
if (justification == null) {
justification = "center";
}
if (smooth == null) {
smooth = true;
}
if (ignore_ticks == null) {
ignore_ticks = false;
}
voices = _.last(this.staves).text_voices;
if (_.isEmpty(voices)) {
throw new Vex.RERR("ArtistError", "Can't add text note without text voice");
}
font_face = this.customizations["font-face"];
font_size = this.customizations["font-size"];
font_style = this.customizations["font-style"];
just = (function() {
switch (justification) {
case "center":
return Vex.Flow.TextNote.Justification.CENTER;
case "left":
return Vex.Flow.TextNote.Justification.LEFT;
case "right":
return Vex.Flow.TextNote.Justification.RIGHT;
default:
return Vex.Flow.TextNote.Justification.CENTER;
}
})();
duration = ignore_ticks ? "b" : this.current_duration;
struct = {
text: text,
duration: duration,
smooth: smooth,
ignore_ticks: ignore_ticks,
font: {
family: font_face,
size: font_size,
weight: font_style
}
};
if (text[0] === "#") {
struct.glyph = text.slice(1);
}
note = new Vex.Flow.TextNote(struct).setLine(position).setJustification(just);
return _.last(voices).push(note);
};
Artist.prototype.addVoice = function(options) {
var stave;
this.closeBends();
stave = _.last(this.staves);
if (stave == null) {
return this.addStave(options);
}
if (!_.isEmpty(stave.tab_notes)) {
stave.tab_voices.push(stave.tab_notes);
stave.tab_notes = [];
}
if (!_.isEmpty(stave.note_notes)) {
stave.note_voices.push(stave.note_notes);
return stave.note_notes = [];
}
};
Artist.prototype.addStave = function(element, options) {
var beam_groups, note_stave, opts, start_x, tab_stave, tabstave_start_x;
opts = {
tuning: "standard",
clef: "treble",
key: "C",
notation: element === "tabstave" ? "false" : "true",
tablature: element === "stave" ? "false" : "true",
strings: 6
};
_.extend(opts, options);
L("addStave: ", element, opts);
tab_stave = null;
note_stave = null;
start_x = this.x + this.customizations["connector-space"];
tabstave_start_x = 40;
if (opts.notation === "true") {
note_stave = new Vex.Flow.Stave(start_x, this.last_y, this.customizations.width - 20, {
left_bar: false
});
if (opts.clef !== "none") {
note_stave.addClef(opts.clef);
}
note_stave.addKeySignature(opts.key);
if (opts.time != null) {
note_stave.addTimeSignature(opts.time);
}
this.last_y += note_stave.getHeight() + this.options.note_stave_lower_spacing + parseInt(this.customizations["stave-distance"], 10);
tabstave_start_x = note_stave.getNoteStartX();
this.current_clef = opts.clef === "none" ? "treble" : opts.clef;
}
if (opts.tablature === "true") {
tab_stave = new Vex.Flow.TabStave(start_x, this.last_y, this.customizations.width - 20, {
left_bar: false
}).setNumLines(opts.strings);
if (opts.clef !== "none") {
tab_stave.addTabGlyph();
}
tab_stave.setNoteStartX(tabstave_start_x);
this.last_y += tab_stave.getHeight() + this.options.tab_stave_lower_spacing;
}
this.closeBends();
beam_groups = Vex.Flow.Beam.getDefaultBeamGroups(opts.time);
this.staves.push({
tab: tab_stave,
note: note_stave,
tab_voices: [],
note_voices: [],
tab_notes: [],
note_notes: [],
text_voices: [],
beam_groups: beam_groups
});
this.tuning.setTuning(opts.tuning);
this.key_manager.setKey(opts.key);
};
Artist.prototype.runCommand = function(line, _l, _c) {
var words;
if (_l == null) {
_l = 0;
}
if (_c == null) {
_c = 0;
}
L("runCommand: ", line);
words = line.split(/\s+/);
switch (words[0]) {
case "octave-shift":
this.current_octave_shift = parseInt(words[1], 10);
return L("Octave shift: ", this.current_octave_shift);
default:
throw new Vex.RERR("ArtistError", "Invalid command '" + words[0] + "' at line " + _l + " column " + _c);
}
};
return Artist;
})();
module.exports = Artist;
},{"lodash":4,"vexflow":7}],9:[function(require,module,exports){
/**
* VexFlow TabDiv
* Copyright Mohit Muthanna 2010 <mohit@muthanna.com>
*/
$ = require('jquery')
Vex = require('vexflow')
Artist = require('./artist.coffee')
VexTab = require('./vextab.coffee')
Vex.Flow.TabDiv = function(sel, options) {
if (arguments.length > 0) this.init(sel, options);
}
Vex.Flow.TabDiv.SEL = ".vex-tabdiv";
Vex.Flow.TabDiv.ERROR_NOCANVAS =
"<b>This browser does not support HTML5 Canvas</b><br/>" +
"Please use a modern browser such as <a href='http://google.com/chrome'>" +
"Google Chrome</a> or <a href='http://firefox.com'>Firefox</a>.";
Vex.Flow.TabDiv.prototype.init = function(sel, options) {
this.sel = sel;
// Grab code and clear tabdiv
this.code = $(sel).text();
$(sel).empty();
if ($(sel).css("position") == "static") {
$(sel).css("position", "relative");
}
// Get tabdiv properties
this.width = parseInt($(sel).attr("width")) || 400;
this.height = parseInt($(sel).attr("height")) || 200;
this.scale = parseFloat($(sel).attr("scale")) || 1.0;
// Raphael is deprecated. Use SVG if it's defined.
if (typeof (Raphael) == "undefined" && typeof (VEXTAB_USE_SVG) == "undefined") {
this.canvas = $('<canvas></canvas>').addClass("vex-canvas");
$(sel).append(this.canvas);
this.renderer = new Vex.Flow.Renderer(this.canvas[0],
Vex.Flow.Renderer.Backends.CANVAS);
} else {
this.canvas = $('<div></div>').addClass("vex-canvas");
$(sel).append(this.canvas);
this.renderer = new Vex.Flow.Renderer(this.canvas[0],
Vex.Flow.Renderer.Backends.SVG);
}
this.ctx_sel = $(sel).find(".vex-canvas");
this.renderer.resize(this.width, this.height);
this.ctx = this.renderer.getContext();
this.ctx.setBackgroundFillStyle(this.ctx_sel.css("background-color"));
this.ctx.scale(this.scale, this.scale);
// Grab editor properties
this.editor = $(sel).attr("editor") || "";
this.show_errors = $(sel).attr("show-errors") || "";
this.editor_width= $(sel).attr("editor_width") || this.width;
this.editor_height= $(sel).attr("editor_height") || 200;
var that = this;
if (this.editor == "true") {
this.text_area = $('<textarea></textarea>').addClass("editor").
val(this.code);
this.editor_error = $('<div></div>').addClass("editor-error");
$(sel).append($('<p/>')).append(this.editor_error);
$(sel).append($('<p/>')).append(this.text_area);
this.text_area.width(this.editor_width);
this.text_area.height(this.editor_height);
this.text_area.keyup(function() {
if (that.timeoutID) window.clearTimeout(that.timeoutID);
that.timeoutID =
window.setTimeout(function() {
// Draw only if code changed
if (that.code != that.text_area.val()) {
that.code = that.text_area.val();
that.redraw()
}
}, 250);
});
} if (this.show_errors == "true") {
this.editor_error = $('<div></div>').addClass("editor-error");
$(sel).append($('<p/>')).append(this.editor_error);
}
// Initialize parser.
this.artist = new Artist(10, 0, this.width, {scale: this.scale});
this.parser = new VexTab(this.artist);
if (Vex.Flow.Player) {
opts = {};
if (options) opts.soundfont_url = options.soundfont_url;
this.player = new Vex.Flow.Player(this.artist, opts);
}
this.redraw();
}
Vex.Flow.TabDiv.prototype.redraw = function() {
var that = this;
Vex.BM("Total render time: ", function() {
that.parse(); that.draw();});
return this;
}
Vex.Flow.TabDiv.prototype.drawInternal = function() {
if (!this.parser.isValid()) return this;
return this.artist.draw(this.renderer);
}
Vex.Flow.TabDiv.prototype.parseInternal = function() {
try {
this.artist.reset();
this.parser.reset();
this.parser.parse(this.code);
this.editor_error.empty();
} catch (e) {
if (this.editor_error) {
this.editor_error.empty();
this.editor_error.append(
$('<div></div>').addClass("text").html(
"Sucky VexTab: " + e.message));
}
}
return this;
}
Vex.Flow.TabDiv.prototype.parse = function() {
var that = this;
Vex.BM("Parse time: ", function() { that.parseInternal(); });
return this;
}
Vex.Flow.TabDiv.prototype.draw = function() {
var that = this;
Vex.BM("Draw time: ", function() { that.drawInternal(); });
return this;
}
// Automatic initialization.
Vex.Flow.TabDiv.start = function() {
$(Vex.Flow.TabDiv.SEL).each(function(index) {
new Vex.Flow.TabDiv(this);
});
}
$(function() {if (Vex.Flow.TabDiv.SEL) { Vex.Flow.TabDiv.start() }});
module.exports = {
Div: Vex.Flow.TabDiv,
VexTab: VexTab,
Artist: Artist,
Flow: Vex.Flow
}
},{"./artist.coffee":8,"./vextab.coffee":10,"jquery":3,"vexflow":7}],10:[function(require,module,exports){
var Vex, VexTab, _, parser,
slice = [].slice,
indexOf = [].indexOf || function(item) { for (var i = 0, l = this.length; i < l; i++) { if (i in this && this[i] === item) return i; } return -1; };
Vex = require('vexflow');
_ = require('lodash');
parser = require('../build/vextab-jison.js');
VexTab = (function() {
var L, newError;
VexTab.DEBUG = false;
L = function() {
var args;
args = 1 <= arguments.length ? slice.call(arguments, 0) : [];
if (VexTab.DEBUG) {
return typeof console !== "undefined" && console !== null ? console.log.apply(console, ["(Vex.Flow.VexTab)"].concat(slice.call(args))) : void 0;
}
};
newError = function(object, msg) {
return new Vex.RERR("ParseError", msg + " in line " + object._l + " column " + object._c);
};
function VexTab(artist) {
this.artist = artist;
this.reset();
}
VexTab.prototype.reset = function() {
this.valid = false;
return this.elements = false;
};
VexTab.prototype.isValid = function() {
return this.valid;
};
VexTab.prototype.getArtist = function() {
return this.artist;
};
VexTab.prototype.parseStaveOptions = function(options) {
var clefs, e, error, error1, error2, i, len, notation_option, num_strings, option, params, ref, ref1, ref2, voices;
params = {};
if (options == null) {
return params;
}
notation_option = null;
for (i = 0, len = options.length; i < len; i++) {
option = options[i];
error = function(msg) {
return newError(option, msg);
};
params[option.key] = option.value;
switch (option.key) {
case "notation":
case "tablature":
notation_option = option;
if ((ref = option.value) !== "true" && ref !== "false") {
throw error("'" + option.key + "' must be 'true' or 'false'");
}
break;
case "key":
if (!_.has(Vex.Flow.keySignature.keySpecs, option.value)) {
throw error("Invalid key signature '" + option.value + "'");
}
break;
case "clef":
clefs = ["treble", "bass", "tenor", "alto", "percussion", "none"];
if (ref1 = option.value, indexOf.call(clefs, ref1) < 0) {
throw error("'clef' must be one of " + (clefs.join(', ')));
}
break;
case "voice":
voices = ["top", "bottom", "new"];
if (ref2 = option.value, indexOf.call(voices, ref2) < 0) {
throw error("'voice' must be one of " + (voices.join(', ')));
}
break;
case "time":
try {
new Vex.Flow.TimeSignature(option.value);
} catch (error1) {
e = error1;
throw error("Invalid time signature: '" + option.value + "'");
}
break;
case "tuning":
try {
new Vex.Flow.Tuning(option.value);
} catch (error2) {
e = error2;
throw error("Invalid tuning: '" + option.value + "'");
}
break;
case "strings":
num_strings = parseInt(option.value);
if (num_strings < 4 || num_strings > 8) {
throw error("Invalid number of strings: " + num_strings);
}
break;
default:
throw error("Invalid option '" + option.key + "'");
}
}
if (params.notation === "false" && params.tablature === "false") {
throw newError(notation_option, "Both 'notation' and 'tablature' can't be invisible");
}
return params;
};
VexTab.prototype.parseCommand = function(element) {
if (element.command === "bar") {
this.artist.addBar(element.type);
}
if (element.command === "tuplet") {
this.artist.makeTuplets(element.params.tuplet, element.params.notes);
}
if (element.command === "annotations") {
this.artist.addAnnotations(element.params);
}
if (element.command === "rest") {
this.artist.addRest(element.params);
}
if (element.command === "command") {
return this.artist.runCommand(element.params, element._l, element._c);
}
};
VexTab.prototype.parseChord = function(element) {
L("parseChord:", element);
return this.artist.addChord(_.map(element.chord, function(note) {
return _.pick(note, 'time', 'dot', 'fret', 'abc', 'octave', 'string', 'articulation', 'decorator');
}), element.articulation, element.decorator);
};
VexTab.prototype.parseFret = function(note) {
return this.artist.addNote(_.pick(note, 'time', 'dot', 'fret', 'string', 'articulation', 'decorator'));
};
VexTab.prototype.parseABC = function(note) {
return this.artist.addNote(_.pick(note, 'time', 'dot', 'fret', 'abc', 'octave', 'string', 'articulation', 'decorator'));
};
VexTab.prototype.parseStaveElements = function(notes) {
var element, i, len, results;
L("parseStaveElements:", notes);
results = [];
for (i = 0, len = notes.length; i < len; i++) {
element = notes[i];
if (element.time) {
this.artist.setDuration(element.time, element.dot);
}
if (element.command) {
this.parseCommand(element);
}
if (element.chord) {
this.parseChord(element);
}
if (element.abc) {
results.push(this.parseABC(element));
} else if (element.fret) {
results.push(this.parseFret(element));
} else {
results.push(void 0);
}
}
return results;
};
VexTab.prototype.parseStaveText = function(text_line) {
var bartext, command, createNote, font, i, justification, len, position, results, smooth, str, text;
if (!_.isEmpty(text_line)) {
this.artist.addTextVoice();
}
position = 0;
justification = "center";
smooth = true;
font = null;
bartext = (function(_this) {
return function() {
return _this.artist.addTextNote("", 0, justification, false, true);
};
})(this);
createNote = (function(_this) {
return function(text) {
var e, error1, ignore_ticks;
ignore_ticks = false;
if (text[0] === "|") {
ignore_ticks = true;
text = text.slice(1);
}
try {
return _this.artist.addTextNote(text, position, justification, smooth, ignore_ticks);
} catch (error1) {
e = error1;
throw newError(str, "Bad text or duration. Did you forget a comma?" + e);
}
};
})(this);
results = [];
for (i = 0, len = text_line.length; i < len; i++) {
str = text_line[i];
text = str.text.trim();
if (text.match(/\.font=.*/)) {
font = text.slice(6);
results.push(this.artist.setTextFont(font));
} else if (text[0] === ":") {
results.push(this.artist.setDuration(text));
} else if (text[0] === ".") {
command = text.slice(1);
switch (command) {
case "center":
case "left":
case "right":
results.push(justification = command);
break;
case "strict":
results.push(smooth = false);
break;
case "smooth":
results.push(smooth = true);
break;
case "bar":
case "|":
results.push(bartext());
break;
default:
results.push(position = parseInt(text.slice(1), 10));
}
} else if (text === "|") {
results.push(bartext());
} else if (text.slice(0, 2) === "++") {
results.push(this.artist.addTextVoice());
} else {
results.push(createNote(text));
}
}
return results;
};
VexTab.prototype.generate = function() {
var e, error1, i, j, len, len1, option, options, ref, ref1, results, stave;
ref = this.elements;
results = [];
for (i = 0, len = ref.length; i < len; i++) {
stave = ref[i];
switch (stave.element) {
case "stave":
case "tabstave":
this.artist.addStave(stave.element, this.parseStaveOptions(stave.options));
if (stave.notes != null) {
this.parseStaveElements(stave.notes);
}
if (stave.text != null) {
results.push(this.parseStaveText(stave.text));
} else {
results.push(void 0);
}
break;
case "voice":
this.artist.addVoice(this.parseStaveOptions(stave.options));
if (stave.notes != null) {
this.parseStaveElements(stave.notes);
}
if (stave.text != null) {
results.push(this.parseStaveText(stave.text));
} else {
results.push(void 0);
}
break;
case "options":
options = {};
ref1 = stave.params;
for (j = 0, len1 = ref1.length; j < len1; j++) {
option = ref1[j];
options[option.key] = option.value;
}
try {
results.push(this.artist.setOptions(options));
} catch (error1) {
e = error1;
throw newError(stave, e.message);
}
break;
default:
throw newError(stave, "Invalid keyword '" + stave.element + "'");
}
}
return results;
};
VexTab.prototype.parse = function(code) {
var line, stripped_code;
parser.parseError = function(message, hash) {
L("VexTab parse error: ", message, hash);
message = "Unexpected text '" + hash.text + "' at line " + hash.loc.first_line + " column " + hash.loc.first_column + ".";
throw new Vex.RERR("ParseError", message);
};
if (code == null) {
throw new Vex.RERR("ParseError", "No code");
}
L("Parsing:\n" + code);
stripped_code = (function() {
var i, len, ref, results;
ref = code.split(/\r\n|\r|\n/);
results = [];
for (i = 0, len = ref.length; i < len; i++) {
line = ref[i];
results.push(line.trim());
}
return results;
})();
this.elements = parser.parse(stripped_code.join("\n"));
if (this.elements) {
this.generate();
this.valid = true;
}
return this.elements;
};
return VexTab;
})();
module.exports = VexTab;
},{"../build/vextab-jison.js":1,"lodash":4,"vexflow":7}]},{},[9])(9)
});