compoze
Version:
music writer
39,272 lines • 1.32 MB
JavaScript
(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){
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": 0
};
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)).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 = "";
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, 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);
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).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":7,"vexflow":10}],2:[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')
Player = require('./player.coffee')
Vex.Flow.TabDiv = function(sel, options) {
if (arguments.length > 0) this.init(sel, options);
}
Vex.Flow.TabDiv.SEL = ".compoze";
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();
if(!this.code){
return
}
$(sel).empty();
if ($(sel).css("position") == "static") {
// $(sel).css("position", "relative");
}
// Get tabdiv properties
this.width = parseInt($(sel).attr("width")) || 400;
this.height = parseInt($(sel).attr("height")) || 100;
this.scale = parseFloat($(sel).attr("scale")) || 1.0;
// If the Raphael.js sources are included, then use Raphael, else
// resort to HTML5 Canvas.
if (typeof (Raphael) == "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.RAPHAEL);
}
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") || 100;
var that = this;
if (this.editor == "true") {
this.text_area = $('<textarea></textarea>').addClass("editor").val(this.code);
$(sel).addClass('has-editor');
$(sel).append($('<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 = $('<md-toast></md-toast>').addClass("md-default-theme md-top md-right")
$(sel).append($('<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().hide();
} catch (e) {
console.log(e)
if (this.editor_error) {
this.editor_error.empty().show();
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":1,"./player.coffee":4,"./vextab.coffee":5,"jquery":6,"vexflow":10}],3:[function(require,module,exports){
(function (process){
/* parser generated by jison 0.4.15 */
/*
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=[5,11,13,14,15,17,19,21,23,31,32,37,38,46,49,58,62,63,64,65,66,67,71,72,74,76,77],$Vy=[2,80],$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=[41,58,60,62,63,64,65,66,67,68,69,70],$VK=[38,46,49,77],$VL=[41,49,58,60,62,63,64,65,66,67,68,69,70,82],$VM=[5,11,13,14,15,17,19,21,23,31,32,37,38,41,46,49,58,62,63,64,65,66,67,71,72,74,76,77],$VN=[1,101],$VO=[1,102],$VP=[44,45,47],$VQ=[2,64],$VR=[1,107],$VS=[5,11,13,14,15,17,19,21,23,31,32,37,38,46,49,58,60,62,63,64,65,66,67,71,72,74,76,77],$VT=[5,11,13,14,15,17,19,21,23,31,32,37,38,46,49,58,60,61,62,63,64,65,66,67,71,72,74,76,77],$VU=[25,72],$VV=[41,49,58,60,62,63,64,65,66,67,68,69,70],$VW=[5,11,13,14,15,17,19,21,23,31,32,37,38,44,45,46,47,49,58,62,63,64,65,66,67,71,72,74,76,77];
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,")":47,"articulation":48,"NUMBER":49,"abc":50,"_":51,"timed_fret":52,"time_values":53,"maybe_dot":54,"time_unit":55,"maybe_slash":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,"$":72,"annotation_words":73,"!":74,"COMMAND":75,"#":76,"ABC":77,"abc_accidental":78,"accidental_type":79,"@":80,"n":81,"~":82,"$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:"(",47:")",49:"NUMBER",51:"_",57:"w",58:"h",59:"q",60:"d",61:"S",62:"-",63:"s",64:"t",65:"T",66:"b",67:"p",68:"v",69:"V",70:"u",71:"^",72:"$",74:"!",75:"COMMAND",76:"#",77:"ABC",80:"@",81:"n",82:"~"},
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],[43,3],[28,4],[28,5],[39,1],[39,1],[39,4],[39,2],[39,4],[52,5],[52,1],[52,5],[52,8],[52,1],[52,4],[29,3],[53,2],[55,1],[55,1],[55,1],[55,1],[54,0],[54,1],[56,0],[56,1],[42,1],[48,1],[48,1],[48,1],[48,1],[48,1],[48,1],[48,1],[40,1],[40,1],[40,1],[40,1],[40,0],[33,3],[33,5],[34,3],[73,1],[73,3],[35,3],[36,2],[36,3],[36,4],[50,3],[78,1],[78,2],[78,1],[78,2],[78,1],[78,0],[79,0],[79,1]],
performAction: function anonymous(yytext, yyleng, yylineno, yy, yystate /* action[1] */, $$ /* vstack */, _$ /* lstack */) {
/* this == yyval */
var $0 = $$.length - 1;
switch (yystate) {
case 1:
return $$[$0-1];
break;
case 2: case 17: case 80:
this.$ = null
break;
case 3: case 12: case 18: case 23: case 25: case 26: case 27: case 42: case 60: case 61: case 62: case 63: case 68:
this.$ = $$[$0]
break;
case 4: case 84:
this.$ = [$$[$0]]
break;
case 5:
this.$ = [].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'] = $$[$0] })
this.$ = $$[$0-3]
break;
case 43: case 44: case 85:
this.$ = [].concat($$[$0-2], $$[$0])
break;
case 45:
this.$ = [{chord: $$[$0-2], decorator: $$[$0]}]
break;
case 46:
this.$ = [{chord: $$[$0-2], articulation: $$[$0-4], decorator: $$[$0]}]
break;
case 47:
this.$ = [{
fret: $$[$0],
_l: _$[$0].first_line,
_c: _$[$0].first_column}]
break;
case 48:
this.$ = [{abc: $$[$0], _l: _$[$0].first_line, _c: _$[$0].first_column}]
break;
case 49:
this.$ = [{abc: $$[$0-3], octave: $$[$0-2],
fret: $$[$0], _l: _$[$0-3].first_line, _c: _$[$0-3].first_column}]
break;
case 50:
this.$ = [_.extend($$[$0], {articulation: $$[$0-1]})]
break;
case 51:
_.extend(_.last($$[$0-3]), {decorator: $$[$0-2]})
_.extend($$[$0], {articulation: $$[$0-1]})
$$[$0-3].push($$[$0])
this.$ = $$[$0-3]
break;
case 52:
this.$ = {
time: $$[$0-3], dot: $$[$0-2], fret: $$[$0],
_l: _$[$0-4].first_line, _c: _$[$0-4].first_column}
break;
case 53:
this.$ = {fret: $$[$0], _l: _$[$0].first_line, _c: _$[$0].first_column}
break;
case 54:
this.$ = {time: $$[$0-3], dot: $$[$0-2], abc: $$[$0]}
break;
case 55:
this.$ = {time: $$[$0-6], dot: $$[$0-5], abc: $$[$0-3], octave: $$[$0-2], fret: $$[$0]}
break;
case 56:
this.$ = {abc: $$[$0], _l: _$[$0].first_line, _c: _$[$0].first_column}
break;
case 57:
this.$ = {abc: $$[$0-3], octave: $$[$0-2],
fret: $$[$0], _l: _$[$0-3].first_line, _c: _$[$0-3].first_column}
break;
case 58:
this.$ = {time: $$[$0-1], dot: $$[$0]}
break;
case 59:
this.$ = $$[$0-1] + $$[$0]
break;
case 64:
this.$ = false
break;
case 65:
this.$ = true
break;
case 66:
this.$ = ''
break;
case 67: case 70:
this.$ = 's'
break;
case 69:
this.$ = '-'
break;
case 71:
this.$ = 't'
break;
case 72:
this.$ = 'T'
break;
case 73:
this.$ = 'b'
break;
case 74:
this.$ = 'h'
break;
case 75:
this.$ = 'p'
break;
case 76:
this.$ = 'v'
break;
case 77:
this.$ = 'V'
break;
case 78:
this.$ = 'u'
break;
case 79:
this.$ = 'd'
break;
case 81:
this.$ = {tuplet: $$[$0-1]}
break;
case 82:
this.$ = {tuplet: $$[$0-3], notes: $$[$0-1]}
break;
case 83: case 86:
this.$ = $$[$0-1]
break;
case 87:
this.$ = {position: 0}
break;
case 88:
this.$ = {position: $$[$0-1]}
break;
case 89:
this.$ = {position: $$[$0-1] * -1}
break;
case 90:
this.$ = {key: $$[$0-2], accidental: $$[$0-1], accidental_type: $$[$0]}
break;
case 91:
this.$ = "#"
break;
case 92:
this.$ = "##"
break;
case 93:
this.$ = "b"
break;
case 94:
this.$ = "bb"
break;
case 95:
this.$ = "n"
break;
case 97:
this.$ = null;
break;
case 98:
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:$Vh,39:38,46:$Vi,48:40,49:$Vj,50:49,58:$Vk,62:$Vl,63:$Vm,64:$Vn,65:$Vo,66:$Vp,67:$Vq,71:$Vr,72:$Vs,74:$Vt,76:$Vu,77:$Vv},o($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],{27:28,28:29,29:30,30:31,33:34,34:35,35:36,36:37,39:38,48:40,50:49,26:62,23:$Vd,31:$Ve,32:$Vf,37:$Vg,38:$Vh,46:$Vi,49:$Vj,58:$Vk,62:$Vl,63:$Vm,64:$Vn,65:$Vo,66:$Vp,67:$Vq,71:$Vr,72:$Vs,74:$Vt,76:$Vu,77:$Vv}),o($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([41,58,62,63,64,65,66,67],$Vy,{40:63,60:$Vz,68:$VA,69:$VB,70:$VC}),{27:69,39:38,43:68,48:70,49:$Vj,50:49,58:$Vk,62:$Vl,63:$Vm,64:$Vn,65:$Vo,66:$Vp,67:$Vq,77:$Vv},{38:$VD,46:[1,71],49:$VE,50:75,52:72,77:$Vv},{49:$VF,53:76,55:77,57:$VG,58:$VH,59:$VI},o($Vx,[2,35]),{37:[1,82],38:[1,83]},{49:[1,84]},{22:[1,86],73:85},{75:[1,87]},{49:[1,89],62:[1,90],76:[1,88]},o($VJ,[2,47]),o($VJ,[2,48],{49:[1,91]}),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($VK,[2,75]),o($VL,[2,96],{78:92,76:[1,93],80:[1,94],81:[1,95]}),o($V5,[2,16]),{22:[1,96]},o($V8,[2,19]),{24:[1,97]},o($Vx,[2,24]),{41:[1,98],48:99,58:$Vk,62:$Vl,63:$Vm,64:$Vn,65:$Vo,66:$Vp,67:$Vq},o($VM,[2,76]),o($VM,[2,77]),o($VM,[2,78]),o($VM,[2,79]),{44:$VN,45:$VO,47:[1,100]},o($VP,[2,42]),{38:$VD,49:$VE,50:75,52:72,77:$Vv},{27:69,39:38,43:103,48:70,49:$Vj,50:49,58:$Vk,62:$Vl,63:$Vm,64:$Vn,65:$Vo,66:$Vp,67:$Vq,77:$Vv},o($VJ,[2,50]),{49:$VF,53:104,55:77,57:$VG,58:$VH,59:$VI},o($VJ,[2,53]),o($VJ,[2,56],{49:[1,105]}),o($Vx,$VQ,{54:106,60:$VR}),o($VS,[2,66],{56:108,61:[1,109]}),o($VT,[2,60]),o($VT,[2,61]),o($VT,[2,62]),o($VT,[2,63]),{23:[1,111],37:[1,110],38:[1,112]},{37:[1,113],38:[1,114]},{25:[1,116],71:[1,115]},{25:[1,118],72:[1,117]},o($VU,[2,84]),{74:[1,119]},o($Vx,[2,87]),{76:[1,120]},{49:[1,121]},{51:[1,122]},o($VV,[2,97],{79:123,82:[1,124]}),o($VL,[2,91],{76:[1,125]}),o($VL,[2,93],{80:[1,126]}),o($VL,[2,95]),o($V8,[2,20]),o($Vw,[2,22]),{42:127,49:[1,128]},{38:$VD,49:$VE,50:75,52:129,77:$Vv},o($Vx,$Vy,{40:130,60:$Vz,68:$VA,69:$VB,70:$VC}),{27:131,39:38,48:70,49:$Vj,50:49,58:$Vk,62:$Vl,63:$Vm,64:$Vn,65:$Vo,66:$Vp,67:$Vq,77:$Vv},{27:132,39:38,48:70,49:$Vj,50:49,58:$Vk,62:$Vl,63:$Vm,64:$Vn,65:$Vo,66:$Vp,67:$Vq,77:$Vv},{44:$VN,45:$VO,47:[1,133]},{38:$VQ,54:134,60:$VR},{51:[1,135]},o($Vx,[2,58]),o($Vx,[2,65]),o($VS,[2,59]),o($VS,[2,67]),o($Vx,[2,36]),o($Vx,[2,37]),o($Vx,[2,39]),o($Vx,[2,38]),o($Vx,[2,40]),o($Vx,[2,81]),{49:[1,136]},o($Vx,[2,83]),{22:[1,137]},o($Vx,[2,86]),o($Vx,[2,88]),{76:[1,138]},{49:[1,139]},o($VV,[2,90]),o($VV,[2,98]),o($VL,[2,92]),o($VL,[2,94]),o($VW,[2,41]),o($VW,[2,68]),o($VJ,[2,51]),o($Vx,[2,45]),o($VP,[2,43]),o($VP,[2,44]),o($Vx,$Vy,{40:140,60:$Vz,68:$VA,69:$VB,70:$VC}),{38:[1,141]},{49:[1,142]},{71:[1,143]},o($VU,[2,85]),o($Vx,[2,89]),o($VJ,[2,49]),o($Vx,[2,46]),{49:[1,144],50:145,77:$Vv},o($VJ,[2,57]),o($Vx,[2,82]),o($VJ,[2,52]),o($VJ,[2,54],{49:[1,146]}),{51:[1,147]},{49:[1,148]},o($VJ,[2,55])],
defaultActions: {10:[2,1]},
parseError: function parseError(str, hash) {
if (hash.recoverable) {
this.trace(str);
} else {
throw new Error(str);
}
},
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:
function lex() {
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 "$"
break;
case 10:return 22
break;
case 11: this.begin('command'); return "!"
break;
case 12: this.begin('notes'); return "!"
break;
case 13:return 75
break;
case 14:return 24
break;
case 15:return 41
break;
case 16:return 45
break;
case 17:return 38
break;
case 18:return 23
break;
case 19:return 46
break;
case 20:return 47
break;
case 21:return 31
break;
case 22:return 32
break;
case 23:return 71
break;
case 24:return 25
break;
case 25:return 37
break;
case 26:return 44
break;
case 27:return 76
break;
case 28:return 80
break;
case 29:return 66
break;
case 30:return 63
break;
case 31:return 58
break;
case 32:return 67
break;
case 33:return 64
break;
case 34:return 65
break;
case 35:return 62
break;
case 36:return 51
break;
case 37:return 68
break;
case 38:return 69
break;
case 39:return 70
break;
case 40:return 60
break;
case 41:return 49
break;
case 42:return 59
break;
case 43:return 57
break;
case 44:return 58
break;
case 45:return 60
break;
case 46:return 61
break;
case 47:return 77
break;
case 48:return 81
break;
case 49:return 82
break;
case 50: this.begin('INITIAL');
break;
case 51:/* skip whitespace */
break;
case 52:return 5
break;
case 53:return 'INVALID'
break;
}
},
rules: [/^(?:notes\b)/,/^(?:tabstave\b)/,/^(?:stave\b)/,/^(?:voice\b)/,/^(?:options\b)/,/^(?:text\b)/,/^(?:slur\b)/,/^(?:[^\s=]+)/,/^(?:[$])/,/^(?:[$])/,/^(?:[^,$]+)/,/^(?:[!])/,/^(?:[!])/,/^(?:[^!]+)/,/^(?:[^,\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":13,"fs":11,"lodash":7,"path":12}],4:[function(require,module,exports){
var Pencil, 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');
Pencil = require('penciljs');
_ = require('lodash');
Vex.Flow.Player = (function() {
var Fraction, INSTRUMENTS, L, RESOLUTION, drawDot, getOverlay, noteValues;
Player.DEBUG = false;
Player.INSTRUMENTS_LOADED = {};
L = function() {
var args;
args = 1 <= arguments.length ? slice.call(arguments, 0) : [];
if (Vex.Flow.Player.DEBUG) {
return typeof console !== "undefined" && console !== null ? console.log.apply(console, ["(Vex.Flow.Player)"].concat(slice.call(args))) : void 0;
}
};
Fraction = Vex.Flow.Fraction;
RESOLUTION = Vex.Flow.RESOLUTION;
noteValues = Vex.Flow.Music.noteValues;
drawDot = Vex.drawDot;
INSTRUMENTS = {
"acoustic_grand_piano": 0,
"acoustic_guitar_nylon": 24,
"acoustic_guitar_steel": 25,
"electric_guitar_jazz": 26,
"distortion_guitar": 30,
"electric_bass_finger": 33,
"electric_bass_pick": 34,
"trumpet": 56,
"brass_section": 61,
"soprano_sax": 64,
"alto_sax": 65,
"tenor_sax": 66,
"baritone_sax": 67,
"flute": 73,
"synth_drum": 118
};
function Player(artist1, options) {
this.artist = artist1;
L("Initializing player: ", options);
this.options = {
instrument: "acoustic_grand_piano",
tempo: 120,
show_controls: false,
soundfont_url: "lib/soundfont/",
overlay_class: "vextab-player"
};
if (options != null) {
_.extend(this.options, options);
}
L("Using soundfonts in: " + this.options.soundfont_url);
this.interval_id = null;
this.pencil = null;
this.reset();
}
Player.prototype.setArtist = function(artist) {
this.artist = artist;
return this.reset();
};
Player.prototype.setTempo = function(tempo) {
L("New tempo: ", tempo);
this.options.tempo = tempo;
return this.reset();
};
Player.prototype.setInstrument = function(instrument) {
L("New instrument: ", instrument);
if (indexOf.call(_.keys(INSTRUMENTS), instrument) < 0) {
throw new Vex.RERR("PlayerError", "Invalid instrument: " + instrument);
}
this.options.instrument = instrument;
return this.reset();
};
Player.prototype.reset = function() {
this.artist.attachPlayer(this);
this.tick_notes = {};
this.all_ticks = [];
this.tpm = this.options.tempo * (RESOLUTION / 4);
this.refresh_rate = 25;
this.ticks_per_refresh = this.tpm / (60 * (1000 / this.refresh_rate));
this.total_ticks = 0;
if (this.marker != null) {
this.marker.remove();
this.marker = null;
}
return this.stop();
};
getOverlay = function(context, scale, overlay_class) {
var canvas, ctx, height, overlay, pencil, width;
canvas = context.canvas;
height = canvas.height;
width = canvas.width;
overlay = $('<canvas>');
overlay.css("position", "absolute");
overlay.css("left", $(canvas).position().left);
overlay.css("top", $(canvas).position().top);
overlay.addClass(overlay_class);
$(canvas).after(overlay);
ctx = Vex.Flow.Renderer.getCanvasContext(overlay.get(0), width, height);
ctx.scale(scale, scale);
pencil = new Pencil(overlay.get(0));
return {
pencil: pencil,
canvas: overlay.get(0)
};
};
Player.prototype.removeControls = function() {
if (this.play_button != null) {
this.play_button.remove();
}
if (this.stop_button != null) {
this.stop_button.remove();
}
if (this.pencil != null) {
return this.pencil.draw();
}
};
Player.prototype.render = function() {
var abs_tick, data, i, j, k, key, l, len, len1, len2, max_voice_tick, note, overlay, ref, ref1, staves, total_ticks, total_voice_ticks, voice, voice_group;
this.reset();
data = this.artist.getPlayerData();
this.scale = data.scale;
if (!this.pencil) {
overlay = getOverlay(data.context, data.scale, this.options.overlay_class);
this.pencil = overlay.pencil;
}
this.marker = new Pencil.Rectangle(0, 0, 8, 75).by(this.pencil).setContext({
globalAlpha: 0
});
if (this.options.show_controls && !((ref = this.pencil) != null ? ref.rendered : void 0)) {
this.play_button = new Pencil.RegularPolygon(10, 12, 8, 3).by(this.pencil);
this.play_button.setContext({
fillStyle: '#0dad51',
strokeStyle: '#0dad51'
});
this.play_button.on('click', (function(_this) {
return function(event) {
return _this.play();
};
})(this));
this.stop_button = new Pencil.Rectangle(35, 5, 14, 14).by(this.pencil);
this.stop_button.setContext({
fillStyle: '#0dad51',
strokeStyle: '#0dad51'
});
this.stop_button.on('click', (function(_this) {
return function(event) {
return _this.stop();
};
})(this));
this.pencil.rendered = true;
}
this.pencil.draw();
staves = data.voices;
total_ticks = new Fraction(0, 1);
for (j = 0, len = staves.length; j < len; j++) {
voice_group = staves[j];
max_voice_tick = new Fraction(0, 1);
for (i = k = 0, len1 = voice_group.length; k < len1; i = ++k) {
voice = voice_group[i];
total_voice_ticks = new Fraction(0, 1);
ref1 = voice.getTickables();
for (l = 0, len2 = ref1.length; l < len2; l++) {
note = ref1[l];
if (!note.shouldIgnoreTicks()) {
abs_tick = total_ticks.clone();
abs_tick.add(total_voice_ticks);
abs_tick.simplify();
key = abs_tick.toString();
if (_.has(this.tick_notes, key)) {
this.tick_notes[key].notes.push(note);
} else {
this.tick_notes[key] = {
tick: abs_tick,
value: abs_tick.value(),
notes: [note]
};
}
total_voice_ticks.add(note.getTicks());
}
}
if (total_voice_ticks.value() > max_voice_tick.value()) {
max_voice_tick.copy(total_voice_ticks);
}
}
total_ticks.add(max_voice_tick);
}
this.all_ticks = _.sortBy(_.values(this.tick_notes), function(tick) {
return tick.value;
});
this.total_ticks = _.last(this.all_ticks);
return L(this.all_ticks);
};
Player.prototype.updateMarker = function(x, y) {
this.marker.setContext({
fillStyle: '#0dad51',
strokeStyle: '#0dad51',
globalAlpha: 0.3
});
this.marker.setPosition(x, y - 10);
return this.pencil.draw();
};
Player.prototype.playNote = function(notes) {
var duration, j, key, keys, len, midi_note, note, note_value, octave, results, x, y;
L("(" + this.current_ticks + ") playNote: ", notes);
results = [];
for (j = 0, len = notes.length; j < len; j++) {
note = notes[j];
x = note.getAbsoluteX() + 2;
y = note.getStave().getYForLine(0);
if (this.pencil != null) {
this.updateMarker(x, y);
}
if (note.isRest()) {
continue;
}
keys = note.getPlayNote();
duration = note.getTicks().value() / (this.tpm / 60);
results.push((function() {
var k, len1, ref, results1;
results1 = [];
for (k = 0, len1 = keys.length; k < len1; k++) {
key = keys[k];
ref = key.split("/"), note = ref[0], octave = ref[1];
note = note.trim().toLowerCase();
note_value = noteValues[note];
if (note_value == null) {
continue;
}
midi_note = (24 + (octave * 12)) + noteValues[note].int_val;
MIDI.noteOn(0, midi_note, 127, 0);
results1.push(MIDI.noteOff(0, midi_note, duration));
}
return results1;
})());
}
return results;
};
Player.prototype.refresh = function() {
if (this.done) {
this.stop();
return;
}
this.current_ticks += this.ticks_per_refresh;
if (this.current_ticks >= this.next_event_tick && this.all_ticks.length > 0) {
this.playNote(this.all_ticks[this.next_index].notes);
this.next_index++;
if (this.next_index >= this.all_ticks.length) {
this.done = true;
if (this.onEnd) {
return this.onEnd();
}
} else {
return this.next_event_tick = this.all_ticks[this.next_index].tick.value();
}
}
};
Player.prototype.stop = function() {
L("Stop");
if (this.interval_id != null) {
window.clearInterval(this.interval_id);
}
this.interval_id = null;
this.current_ticks = 0;
this.next_event_tick = 0;
this.next_index = 0;
return this.done = false;
};
Player.prototype.start = function() {
this.stop();
L("Start");
MIDI.programChange(0, INSTRUMENTS[this.options.instrument]);
this.render();
return this.interval_id = window.setInterval(((function(_this) {
return function() {
return _this.refresh();
};
})(this)), this.refresh_rate);
};
Player.prototype.play = function() {
L("Play: ", this.refresh_rate, this.ticks_per_refresh);
if (Vex.Flow.Player.INSTRUMENTS_LOADED[this.options.instrument] && !this.loading) {
return this.start();
} else {
L("Loading instruments...");
this.loading = true;
this.pencil.draw();
return MIDI.loadPlugin({
soundfontUrl: this.options.soundfont_url,
instruments: [this.options.instrument],
callback: (function(_this) {
return function() {
Vex.Flow.Player.INSTRUMENTS_LOADED[_this.options.instrument] = true;
_this.loading = false;
return _this.start();
};
})(this)
});
}
};
return Player;
})();
},{"lodash":7,"penciljs":8,"vexflow":10}],5:[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('./grammer.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, 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 (_error) {
e = _error;
throw error("Invalid time signature: '" + option.value + "'");
}
break;
case "tuning":
try {
new Vex.Flow.Tuning(option.value);
} catch (_error) {
e = _error;
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, 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 (_error) {
e = _error;
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, 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 (_error) {
e = _error;
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;
},{"./grammer.js":3,"lodash":7,"vexflow":10}],6:[function(require,module,exports){
/*!
* jQuery JavaScript Library v2.1.3
* http://jquery.com/
*
* Includes Sizzle.js
* http://sizzlejs.com/
*
* Copyright 2005, 2014 jQuery Foundation, Inc. and other contributors
* Released under the MIT license
* http://jquery.org/license
*
* Date: 2014-12-18T15:11Z
*/
(function( global, factory ) {
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 ) {
// Support: Firefox 18+
// Can't be in strict mode, several libs including ASP.NET trace
// the stack via arguments.caller.callee and Firefox dies if
// you try to trace through "use strict" call chains. (#13335)
//
var arr = [];
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 support = {};
var
// Use the correct document accordingly with window argument (sandbox)
document = window.document,
version = "2.1.3",
// 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<4.1
// Make sure we trim BOM and NBSP
rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,
// Matches dashed string for camelizing
rmsPrefix = /^-ms-/,
rdashAlpha = /-([\da-z])/gi,
// 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,
// Start with an empty selector
selector: "",
// 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;
ret.context = this.context;
// Return the newly-formed element set
return ret;
},
// Execute a callback for every element in the matched set.
// (You can seed the arguments with an array of args, but this is
// only used internally.)
each: function( callback, args ) {
return jQuery.each( this, callback, args );
},
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(null);
},
// 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 ) {
// parseFloat NaNs numeric-cast false positives (null|true|false|"")
// ...but misinterprets leading-number strings, particularly hex literals ("0x...")
// subtraction forces infinities to NaN
// adding 1 corrects loss of precision from parseFloat (#15100)
return !jQuery.isArray( obj ) && (obj - parseFloat( obj ) + 1) >= 0;
},
isPlainObject: function( obj ) {
// Not plain objects:
// - Any object or value whose internal [[Class]] property is not "[object Object]"
// - DOM nodes
// - window
if ( jQuery.type( obj ) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
return false;
}
if ( obj.constructor &&
!hasOwn.call( obj.constructor.prototype, "isPrototypeOf" ) ) {
return false;
}
// If the function hasn't returned already, we're confident that
// |obj| is a plain object, created by {} or constructed with new Object
return true;
},
isEmptyObject: function( obj ) {
var name;
for ( name in obj ) {
return false;
}
return true;
},
type: function( obj ) {
if ( obj == null ) {
return obj + "";
}
// Support: Android<4.0, iOS<6 (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 ) {
var script,
indirect = eval;
code = jQuery.trim( code );
if ( code ) {
// If the code includes a valid, prologue position
// strict mode pragma, execute code by injecting a
// script tag into the document.
if ( code.indexOf("use strict") === 1 ) {
script = document.createElement("script");
script.text = code;
document.head.appendChild( script ).parentNode.removeChild( script );
} else {
// Otherwise, avoid the DOM node creation, insertion
// and removal by using an indirect global eval
indirect( code );
}
}
},
// Convert dashed to camelCase; used by the css and data modules
// Support: IE9-11+
// 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();
},
// args is for internal usage only
each: function( obj, callback, args ) {
var value,
i = 0,
length = obj.length,
isArray = isArraylike( obj );
if ( args ) {
if ( isArray ) {
for ( ; i < length; i++ ) {
value = callback.apply( obj[ i ], args );
if ( value === false ) {
break;
}
}
} else {
for ( i in obj ) {
value = callback.apply( obj[ i ], args );
if ( value === false ) {
break;
}
}
}
// A special, fast, case for the most common use of each
} else {
if ( isArray ) {
for ( ; i < length; i++ ) {
value = callback.call( obj[ i ], i, obj[ i ] );
if ( value === false ) {
break;
}
}
} else {
for ( i in obj ) {
value = callback.call( obj[ i ], i, obj[ i ] );
if ( value === false ) {
break;
}
}
}
}
return obj;
},
// Support: Android<4.1
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 );
},
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 value,
i = 0,
length = elems.length,
isArray = isArraylike( elems ),
ret = [];
// Go through the array, translating each of the items to their new values
if ( isArray ) {
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
});
// Populate the class2type map
jQuery.each("Boolean Number String Function Array Date RegExp Object Error".split(" "), function(i, name) {
class2type[ "[object " + name + "]" ] = name.toLowerCase();
});
function isArraylike( obj ) {
var length = obj.length,
type = jQuery.type( obj );
if ( type === "function" || jQuery.isWindow( obj ) ) {
return false;
}
if ( obj.nodeType === 1 && length ) {
return true;
}
return type === "array" || length === 0 ||
typeof length === "number" && length > 0 && ( length - 1 ) in obj;
}
var Sizzle =
/*!
* Sizzle CSS Selector Engine v2.2.0-pre
* http://sizzlejs.com/
*
* Copyright 2008, 2014 jQuery Foundation, Inc. and other contributors
* Released under the MIT license
* http://jquery.org/license
*
* Date: 2014-12-16
*/
(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;
},
// General-purpose constants
MAX_NEGATIVE = 1 << 31,
// 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
// http://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
// Whitespace characters http://www.w3.org/TR/css3-selectors/#whitespace
whitespace = "[\\x20\\t\\r\\n\\f]",
// http://www.w3.org/TR/css3-syntax/#characters
characterEncoding = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",
// Loosely modeled on CSS identifier characters
// An unquoted value should be a CSS identifier http://www.w3.org/TR/css3-selectors/#attribute-selectors
// Proper syntax: http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
identifier = characterEncoding.replace( "w", "w#" ),
// Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
attributes = "\\[" + whitespace + "*(" + characterEncoding + ")(?:" + whitespace +
// Operator (capture 2)
"*([*^$|!~]?=)" + whitespace +
// "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
"*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace +
"*\\]",
pseudos = ":(" + characterEncoding + ")(?:\\((" +
// To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
// 1. quoted (capture 3; capture 4 or capture 5)
"('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
// 2. simple (capture 6)
"((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
// 3. anything else (capture 2)
".*" +
")\\)|)",
// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
rwhitespace = new RegExp( whitespace + "+", "g" ),
rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "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 + "$" ),
matchExpr = {
"ID": new RegExp( "^#(" + characterEncoding + ")" ),
"CLASS": new RegExp( "^\\.(" + characterEncoding + ")" ),
"TAG": new RegExp( "^(" + characterEncoding.replace( "w", "w*" ) + ")" ),
"ATTR": new RegExp( "^" + attributes ),
"PSEUDO": new RegExp( "^" + pseudos ),
"CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
"*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
"*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
"bool": new RegExp( "^(?:" + booleans + ")$", "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 = /[+~]/,
rescape = /'|\\/g,
// 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 );
},
// Used for iframes
// See setDocument()
// Removing the function wrapper causes a "Permission Denied"
// error in IE
unloadHandler = function() {
setDocument();
};
// 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 match, elem, m, nodeType,
// QSA vars
i, groups, old, nid, newContext, newSelector;
if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
setDocument( context );
}
context = context || document;
results = results || [];
nodeType = context.nodeType;
if ( typeof selector !== "string" || !selector ||
nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {
return results;
}
if ( !seed && documentIsHTML ) {
// Try to shortcut find operations when possible (e.g., not under DocumentFragment)
if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) {
// Speed-up: Sizzle("#ID")
if ( (m = match[1]) ) {
if ( nodeType === 9 ) {
elem = context.getElementById( m );
// Check parentNode to catch when Blackberry 4.6 returns
// nodes that are no longer in the document (jQuery #6963)
if ( elem && elem.parentNode ) {
// Handle the case where IE, Opera, and Webkit return items
// by name instead of ID
if ( elem.id === m ) {
results.push( elem );
return results;
}
} else {
return results;
}
} else {
// Context is not a document
if ( context.ownerDocument && (elem = context.ownerDocument.getElementById( m )) &&
contains( context, elem ) && elem.id === m ) {
results.push( elem );
return results;
}
}
// Speed-up: Sizzle("TAG")
} else if ( match[2] ) {
push.apply( results, context.getElementsByTagName( selector ) );
return results;
// Speed-up: Sizzle(".CLASS")
} else if ( (m = match[3]) && support.getElementsByClassName ) {
push.apply( results, context.getElementsByClassName( m ) );
return results;
}
}
// QSA path
if ( support.qsa && (!rbuggyQSA || !rbuggyQSA.test( selector )) ) {
nid = old = expando;
newContext = context;
newSelector = nodeType !== 1 && selector;
// qSA works strangely on Element-rooted queries
// We can work around this by specifying an extra ID on the root
// and working up from there (Thanks to Andrew Dupont for the technique)
// IE 8 doesn't work on object elements
if ( nodeType === 1 && context.nodeName.toLowerCase() !== "object" ) {
groups = tokenize( selector );
if ( (old = context.getAttribute("id")) ) {
nid = old.replace( rescape, "\\$&" );
} else {
context.setAttribute( "id", nid );
}
nid = "[id='" + nid + "'] ";
i = groups.length;
while ( i-- ) {
groups[i] = nid + toSelector( groups[i] );
}
newContext = rsibling.test( selector ) && testContext( context.parentNode ) || context;
newSelector = groups.join(",");
}
if ( newSelector ) {
try {
push.apply( results,
newContext.querySelectorAll( newSelector )
);
return results;
} catch(qsaError) {
} finally {
if ( !old ) {
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 div and expects a boolean result
*/
function assert( fn ) {
var div = document.createElement("div");
try {
return !!fn( div );
} catch (e) {
return false;
} finally {
// Remove from its parent by default
if ( div.parentNode ) {
div.parentNode.removeChild( div );
}
// release memory in IE
div = 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 = attrs.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 &&
( ~b.sourceIndex || MAX_NEGATIVE ) -
( ~a.sourceIndex || MAX_NEGATIVE );
// 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 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, parent,
doc = node ? node.ownerDocument || node : preferredDoc;
// If no document and documentElement is available, return
if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
return document;
}
// Set our document
document = doc;
docElem = doc.documentElement;
parent = doc.defaultView;
// Support: IE>8
// If iframe document is assigned to "document" variable and if iframe has been reloaded,
// IE will throw "permission denied" error when accessing "document" variable, see jQuery #13936
// IE6-8 do not support the defaultView property so parent will be undefined
if ( parent && parent !== parent.top ) {
// IE11 does not have attachEvent, so all must suffer
if ( parent.addEventListener ) {
parent.addEventListener( "unload", unloadHandler, false );
} else if ( parent.attachEvent ) {
parent.attachEvent( "onunload", unloadHandler );
}
}
/* Support tests
---------------------------------------------------------------------- */
documentIsHTML = !isXML( doc );
/* Attributes
---------------------------------------------------------------------- */
// Support: IE<8
// Verify that getAttribute really returns attributes and not properties
// (excepting IE8 booleans)
support.attributes = assert(function( div ) {
div.className = "i";
return !div.getAttribute("className");
});
/* getElement(s)By*
---------------------------------------------------------------------- */
// Check if getElementsByTagName("*") returns only elements
support.getElementsByTagName = assert(function( div ) {
div.appendChild( doc.createComment("") );
return !div.getElementsByTagName("*").length;
});
// Support: IE<9
support.getElementsByClassName = rnative.test( doc.getElementsByClassName );
// Support: IE<10
// Check if getElementById returns elements by name
// The broken getElementById methods don't pick up programatically-set names,
// so use a roundabout getElementsByName test
support.getById = assert(function( div ) {
docElem.appendChild( div ).id = expando;
return !doc.getElementsByName || !doc.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 );
// Check parentNode to catch when Blackberry 4.6 returns
// nodes that are no longer in the document #6963
return m && m.parentNode ? [ 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 ( 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 http://bugs.jquery.com/ticket/13378
rbuggyQSA = [];
if ( (support.qsa = rnative.test( doc.querySelectorAll )) ) {
// Build QSA regex
// Regex strategy adopted from Diego Perini
assert(function( div ) {
// 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
// http://bugs.jquery.com/ticket/12359
docElem.appendChild( div ).innerHTML = "<a id='" + expando + "'></a>" +
"<select id='" + expando + "-\f]' msallowcapture=''>" +
"<option selected=''></option></select>";
// Support: IE8, Opera 11-12.16
// Nothing should be selected when empty strings follow ^= or $= or *=
// The test attribute must be unknown in Opera but "safe" for WinRT
// http://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
if ( div.querySelectorAll("[msallowcapture^='']").length ) {
rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
}
// Support: IE8
// Boolean attributes and "value" are not treated correctly
if ( !div.querySelectorAll("[selected]").length ) {
rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
}
// Support: Chrome<29, Android<4.2+, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.7+
if ( !div.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 ( !div.querySelectorAll(":checked").length ) {
rbuggyQSA.push(":checked");
}
// Support: Safari 8+, iOS 8+
// https://bugs.webkit.org/show_bug.cgi?id=136851
// In-page `selector#id sibing-combinator selector` fails
if ( !div.querySelectorAll( "a#" + expando + "+*" ).length ) {
rbuggyQSA.push(".#.+[+~]");
}
});
assert(function( div ) {
// Support: Windows 8 Native Apps
// The type and name attributes are restricted during .innerHTML assignment
var input = doc.createElement("input");
input.setAttribute( "type", "hidden" );
div.appendChild( input ).setAttribute( "name", "D" );
// Support: IE8
// Enforce case-sensitivity of name attribute
if ( div.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 ( !div.querySelectorAll(":enabled").length ) {
rbuggyQSA.push( ":enabled", ":disabled" );
}
// Opera 10-11 does not throw on post-comma invalid pseudos
div.querySelectorAll("*,:x");
rbuggyQSA.push(",.*:");
});
}
if ( (support.matchesSelector = rnative.test( (matches = docElem.matches ||
docElem.webkitMatchesSelector ||
docElem.mozMatchesSelector ||
docElem.oMatchesSelector ||
docElem.msMatchesSelector) )) ) {
assert(function( div ) {
// Check to see if it's possible to do matchesSelector
// on a disconnected node (IE 9)
support.disconnectedMatch = matches.call( div, "div" );
// This should fail with an exception
// Gecko does not error, returns false instead
matches.call( div, "[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 does not implement inclusive descendent
// 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 === doc || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) {
return -1;
}
if ( b === doc || 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 === doc ? -1 :
b === doc ? 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 doc;
};
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 &&
( !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.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, outerCache, node, diff, nodeIndex, start,
dir = simple !== forward ? "nextSibling" : "previousSibling",
parent = elem.parentNode,
name = ofType && elem.nodeName.toLowerCase(),
useCache = !xml && !ofType;
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
outerCache = parent[ expando ] || (parent[ expando ] = {});
cache = outerCache[ type ] || [];
nodeIndex = cache[0] === dirruns && cache[1];
diff = cache[0] === dirruns && 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 ) {
outerCache[ type ] = [ dirruns, nodeIndex, diff ];
break;
}
}
// Use previously-cached element index if available
} else if ( useCache && (cache = (elem[ expando ] || (elem[ expando ] = {}))[ type ]) && cache[0] === dirruns ) {
diff = cache[1];
// xml :nth-child(...) or :nth-last-child(...) or :nth(-last)?-of-type(...)
} else {
// 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 ) {
(node[ expando ] || (node[ expando ] = {}))[ 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": function( elem ) {
return elem.disabled === false;
},
"disabled": function( elem ) {
return elem.disabled === 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,
checkNonElements = base && dir === "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, outerCache,
newCache = [ dirruns, doneName ];
// We can't set arbitrary data on XML nodes, so they don't benefit from dir 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 ] = {});
if ( (oldCache = outerCache[ dir ]) &&
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
outerCache[ dir ] = 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;
}
// Add elements passing elementMatchers directly to results
// Keep `i` a string if there are no elements so `matchedCount` will be "00" below
// 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;
while ( (matcher = elementMatchers[j++]) ) {
if ( matcher( elem, context, 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 );
}
}
}
// Apply set filters to unmatched elements
matchedCount += i;
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 no seed and only one group
if ( match.length === 1 ) {
// Take a shortcut and set the context if the root 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,
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( div1 ) {
// Should return 1, but returns 4 (following)
return div1.compareDocumentPosition( document.createElement("div") ) & 1;
});
// Support: IE<8
// Prevent attribute/property "interpolation"
// http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
if ( !assert(function( div ) {
div.innerHTML = "<a href='#'></a>";
return div.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( div ) {
div.innerHTML = "<input/>";
div.firstChild.setAttribute( "value", "" );
return div.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( div ) {
return div.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;
jQuery.expr[":"] = jQuery.expr.pseudos;
jQuery.unique = Sizzle.uniqueSort;
jQuery.text = Sizzle.getText;
jQuery.isXMLDoc = Sizzle.isXML;
jQuery.contains = Sizzle.contains;
var rneedsContext = jQuery.expr.match.needsContext;
var rsingleTag = (/^<(\w+)\s*\/?>(?:<\/\1>|)$/);
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 ) {
/* jshint -W018 */
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 ) >= 0 ) !== not;
});
}
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,
len = this.length,
ret = [],
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;
}
}
}) );
}
for ( i = 0; i < len; i++ ) {
jQuery.find( selector, self[ i ], ret );
}
// Needed because $( selector, context ) becomes $( context ).find( selector )
ret = this.pushStack( len > 1 ? jQuery.unique( ret ) : ret );
ret.selector = this.selector ? this.selector + " " + selector : selector;
return 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 $("p:first").is("p:last") won't return true for a doc with two "p".
typeof selector === "string" && rneedsContext.test( selector ) ?
jQuery( selector ) :
selector || [],
false
).length;
}
});
// Initialize a jQuery object
// A central reference to the root jQuery(document)
var rootjQuery,
// A simple way to check for HTML strings
// Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
// Strict HTML recognition (#11290: must start with <)
rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]*))$/,
init = jQuery.fn.init = function( selector, context ) {
var match, elem;
// HANDLE: $(""), $(null), $(undefined), $(false)
if ( !selector ) {
return this;
}
// 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] );
// Support: Blackberry 4.6
// gEBID returns nodes no longer in the document (#6963)
if ( elem && elem.parentNode ) {
// Inject the element directly into the jQuery object
this.length = 1;
this[0] = elem;
}
this.context = document;
this.selector = selector;
return this;
}
// HANDLE: $(expr, $(...))
} else if ( !context || context.jquery ) {
return ( context || rootjQuery ).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.context = this[0] = selector;
this.length = 1;
return this;
// HANDLE: $(function)
// Shortcut for document ready
} else if ( jQuery.isFunction( selector ) ) {
return typeof rootjQuery.ready !== "undefined" ?
rootjQuery.ready( selector ) :
// Execute immediately if ready is not present
selector( jQuery );
}
if ( selector.selector !== undefined ) {
this.selector = selector.selector;
this.context = selector.context;
}
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.extend({
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;
},
sibling: function( n, elem ) {
var matched = [];
for ( ; n; n = n.nextSibling ) {
if ( n.nodeType === 1 && n !== elem ) {
matched.push( n );
}
}
return matched;
}
});
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 = [],
pos = rneedsContext.test( selectors ) || typeof selectors !== "string" ?
jQuery( selectors, context || this.context ) :
0;
for ( ; i < l; i++ ) {
for ( cur = this[i]; cur && cur !== context; cur = cur.parentNode ) {
// Always skip document fragments
if ( cur.nodeType < 11 && (pos ?
pos.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.unique( 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.unique(
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 jQuery.dir( elem, "parentNode" );
},
parentsUntil: function( elem, i, until ) {
return jQuery.dir( elem, "parentNode", until );
},
next: function( elem ) {
return sibling( elem, "nextSibling" );
},
prev: function( elem ) {
return sibling( elem, "previousSibling" );
},
nextAll: function( elem ) {
return jQuery.dir( elem, "nextSibling" );
},
prevAll: function( elem ) {
return jQuery.dir( elem, "previousSibling" );
},
nextUntil: function( elem, i, until ) {
return jQuery.dir( elem, "nextSibling", until );
},
prevUntil: function( elem, i, until ) {
return jQuery.dir( elem, "previousSibling", until );
},
siblings: function( elem ) {
return jQuery.sibling( ( elem.parentNode || {} ).firstChild, elem );
},
children: function( elem ) {
return jQuery.sibling( 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.unique( matched );
}
// Reverse order for parents* and prev-derivatives
if ( rparentsprev.test( name ) ) {
matched.reverse();
}
}
return this.pushStack( matched );
};
});
var rnotwhite = (/\S+/g);
// String to Object options format cache
var optionsCache = {};
// Convert String-formatted options into Object-formatted ones and store in cache
function createOptions( options ) {
var object = optionsCache[ options ] = {};
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" ?
( optionsCache[ options ] || createOptions( options ) ) :
jQuery.extend( {}, options );
var // Last fire value (for non-forgettable lists)
memory,
// Flag to know if list was already fired
fired,
// Flag to know if list is currently firing
firing,
// First callback to fire (used internally by add and fireWith)
firingStart,
// End of the loop when firing
firingLength,
// Index of currently firing callback (modified by remove if needed)
firingIndex,
// Actual callback list
list = [],
// Stack of fire calls for repeatable lists
stack = !options.once && [],
// Fire callbacks
fire = function( data ) {
memory = options.memory && data;
fired = true;
firingIndex = firingStart || 0;
firingStart = 0;
firingLength = list.length;
firing = true;
for ( ; list && firingIndex < firingLength; firingIndex++ ) {
if ( list[ firingIndex ].apply( data[ 0 ], data[ 1 ] ) === false && options.stopOnFalse ) {
memory = false; // To prevent further calls using add
break;
}
}
firing = false;
if ( list ) {
if ( stack ) {
if ( stack.length ) {
fire( stack.shift() );
}
} else if ( memory ) {
list = [];
} else {
self.disable();
}
}
},
// Actual Callbacks object
self = {
// Add a callback or a collection of callbacks to the list
add: function() {
if ( list ) {
// First, we save the current length
var start = list.length;
(function add( args ) {
jQuery.each( args, function( _, arg ) {
var type = jQuery.type( arg );
if ( type === "function" ) {
if ( !options.unique || !self.has( arg ) ) {
list.push( arg );
}
} else if ( arg && arg.length && type !== "string" ) {
// Inspect recursively
add( arg );
}
});
})( arguments );
// Do we need to add the callbacks to the
// current firing batch?
if ( firing ) {
firingLength = list.length;
// With memory, if we're not firing then
// we should call right away
} else if ( memory ) {
firingStart = start;
fire( memory );
}
}
return this;
},
// Remove a callback from the list
remove: function() {
if ( list ) {
jQuery.each( arguments, function( _, arg ) {
var index;
while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
list.splice( index, 1 );
// Handle firing indexes
if ( firing ) {
if ( index <= firingLength ) {
firingLength--;
}
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 && list.length );
},
// Remove all callbacks from the list
empty: function() {
list = [];
firingLength = 0;
return this;
},
// Have the list do nothing anymore
disable: function() {
list = stack = memory = undefined;
return this;
},
// Is it disabled?
disabled: function() {
return !list;
},
// Lock the list in its current state
lock: function() {
stack = undefined;
if ( !memory ) {
self.disable();
}
return this;
},
// Is it locked?
locked: function() {
return !stack;
},
// Call all callbacks with the given context and arguments
fireWith: function( context, args ) {
if ( list && ( !fired || stack ) ) {
args = args || [];
args = [ context, args.slice ? args.slice() : args ];
if ( firing ) {
stack.push( args );
} else {
fire( args );
}
}
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;
};
jQuery.extend({
Deferred: function( func ) {
var tuples = [
// action, add listener, listener list, final state
[ "resolve", "done", jQuery.Callbacks("once memory"), "resolved" ],
[ "reject", "fail", jQuery.Callbacks("once memory"), "rejected" ],
[ "notify", "progress", jQuery.Callbacks("memory") ]
],
state = "pending",
promise = {
state: function() {
return state;
},
always: function() {
deferred.done( arguments ).fail( arguments );
return this;
},
then: function( /* fnDone, fnFail, fnProgress */ ) {
var fns = arguments;
return jQuery.Deferred(function( newDefer ) {
jQuery.each( tuples, function( i, tuple ) {
var fn = jQuery.isFunction( fns[ i ] ) && fns[ i ];
// deferred[ done | fail | progress ] for forwarding actions to newDefer
deferred[ tuple[1] ](function() {
var returned = fn && fn.apply( this, arguments );
if ( returned && jQuery.isFunction( returned.promise ) ) {
returned.promise()
.done( newDefer.resolve )
.fail( newDefer.reject )
.progress( newDefer.notify );
} else {
newDefer[ tuple[ 0 ] + "With" ]( this === promise ? newDefer.promise() : this, fn ? [ returned ] : arguments );
}
});
});
fns = null;
}).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 = {};
// Keep pipe for back-compat
promise.pipe = promise.then;
// Add list-specific methods
jQuery.each( tuples, function( i, tuple ) {
var list = tuple[ 2 ],
stateString = tuple[ 3 ];
// promise[ done | fail | progress ] = list.add
promise[ tuple[1] ] = list.add;
// Handle state
if ( stateString ) {
list.add(function() {
// state = [ resolved | rejected ]
state = stateString;
// [ reject_list | resolve_list ].disable; progress_list.lock
}, tuples[ i ^ 1 ][ 2 ].disable, tuples[ 2 ][ 2 ].lock );
}
// deferred[ resolve | reject | notify ]
deferred[ tuple[0] ] = function() {
deferred[ tuple[0] + "With" ]( this === deferred ? promise : this, arguments );
return this;
};
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( subordinate /* , ..., subordinateN */ ) {
var i = 0,
resolveValues = slice.call( arguments ),
length = resolveValues.length,
// the count of uncompleted subordinates
remaining = length !== 1 || ( subordinate && jQuery.isFunction( subordinate.promise ) ) ? length : 0,
// the master Deferred. If resolveValues consist of only a single Deferred, just use that.
deferred = remaining === 1 ? subordinate : jQuery.Deferred(),
// Update function for both resolve and progress values
updateFunc = function( i, contexts, values ) {
return function( value ) {
contexts[ i ] = this;
values[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
if ( values === progressValues ) {
deferred.notifyWith( contexts, values );
} else if ( !( --remaining ) ) {
deferred.resolveWith( contexts, values );
}
};
},
progressValues, progressContexts, resolveContexts;
// Add listeners to Deferred subordinates; treat others as resolved
if ( length > 1 ) {
progressValues = new Array( length );
progressContexts = new Array( length );
resolveContexts = new Array( length );
for ( ; i < length; i++ ) {
if ( resolveValues[ i ] && jQuery.isFunction( resolveValues[ i ].promise ) ) {
resolveValues[ i ].promise()
.done( updateFunc( i, resolveContexts, resolveValues ) )
.fail( deferred.reject )
.progress( updateFunc( i, progressContexts, progressValues ) );
} else {
--remaining;
}
}
}
// If we're not waiting on anything, resolve the master
if ( !remaining ) {
deferred.resolveWith( resolveContexts, resolveValues );
}
return deferred.promise();
}
});
// The deferred used on DOM ready
var readyList;
jQuery.fn.ready = function( fn ) {
// Add the callback
jQuery.ready.promise().done( fn );
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 ] );
// Trigger any bound ready events
if ( jQuery.fn.triggerHandler ) {
jQuery( document ).triggerHandler( "ready" );
jQuery( document ).off( "ready" );
}
}
});
/**
* The ready event handler and self cleanup method
*/
function completed() {
document.removeEventListener( "DOMContentLoaded", completed, false );
window.removeEventListener( "load", completed, false );
jQuery.ready();
}
jQuery.ready.promise = function( obj ) {
if ( !readyList ) {
readyList = jQuery.Deferred();
// Catch cases where $(document).ready() is called after the browser event has already occurred.
// We once tried to use readyState "interactive" here, but it caused issues like the one
// discovered by ChrisS here: http://bugs.jquery.com/ticket/12282#comment:15
if ( document.readyState === "complete" ) {
// Handle it asynchronously to allow scripts the opportunity to delay ready
setTimeout( jQuery.ready );
} else {
// Use the handy event callback
document.addEventListener( "DOMContentLoaded", completed, false );
// A fallback to window.onload, that will always work
window.addEventListener( "load", completed, false );
}
}
return readyList.promise( obj );
};
// Kick off the DOM ready check even if the user does not
jQuery.ready.promise();
// Multifunctional method to get and set values of a collection
// The value/s can optionally be executed if it's a function
var access = jQuery.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 ) {
jQuery.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;
};
/**
* Determines whether an object can have data
*/
jQuery.acceptData = function( owner ) {
// Accepts only:
// - Node
// - Node.ELEMENT_NODE
// - Node.DOCUMENT_NODE
// - Object
// - Any
/* jshint -W018 */
return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType );
};
function Data() {
// Support: Android<4,
// Old WebKit does not have Object.preventExtensions/freeze method,
// return new empty object instead with no [[set]] accessor
Object.defineProperty( this.cache = {}, 0, {
get: function() {
return {};
}
});
this.expando = jQuery.expando + Data.uid++;
}
Data.uid = 1;
Data.accepts = jQuery.acceptData;
Data.prototype = {
key: function( owner ) {
// We can accept data for non-element nodes in modern browsers,
// but we should not, see #8335.
// Always return the key for a frozen object.
if ( !Data.accepts( owner ) ) {
return 0;
}
var descriptor = {},
// Check if the owner object already has a cache key
unlock = owner[ this.expando ];
// If not, create one
if ( !unlock ) {
unlock = Data.uid++;
// Secure it in a non-enumerable, non-writable property
try {
descriptor[ this.expando ] = { value: unlock };
Object.defineProperties( owner, descriptor );
// Support: Android<4
// Fallback to a less secure definition
} catch ( e ) {
descriptor[ this.expando ] = unlock;
jQuery.extend( owner, descriptor );
}
}
// Ensure the cache object
if ( !this.cache[ unlock ] ) {
this.cache[ unlock ] = {};
}
return unlock;
},
set: function( owner, data, value ) {
var prop,
// There may be an unlock assigned to this node,
// if there is no entry for this "owner", create one inline
// and set the unlock as though an owner entry had always existed
unlock = this.key( owner ),
cache = this.cache[ unlock ];
// Handle: [ owner, key, value ] args
if ( typeof data === "string" ) {
cache[ data ] = value;
// Handle: [ owner, { properties } ] args
} else {
// Fresh assignments by object are shallow copied
if ( jQuery.isEmptyObject( cache ) ) {
jQuery.extend( this.cache[ unlock ], data );
// Otherwise, copy the properties one-by-one to the cache object
} else {
for ( prop in data ) {
cache[ prop ] = data[ prop ];
}
}
}
return cache;
},
get: function( owner, key ) {
// Either a valid cache is found, or will be created.
// New caches will be created and the unlock returned,
// allowing direct access to the newly created
// empty data object. A valid owner object must be provided.
var cache = this.cache[ this.key( owner ) ];
return key === undefined ?
cache : cache[ key ];
},
access: function( owner, key, value ) {
var stored;
// 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) ) {
stored = this.get( owner, key );
return stored !== undefined ?
stored : this.get( owner, jQuery.camelCase(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, name, camel,
unlock = this.key( owner ),
cache = this.cache[ unlock ];
if ( key === undefined ) {
this.cache[ unlock ] = {};
} else {
// Support array or space separated string of keys
if ( jQuery.isArray( key ) ) {
// If "name" is an array of keys...
// When data is initially created, via ("key", "val") signature,
// keys will be converted to camelCase.
// Since there is no way to tell _how_ a key was added, remove
// both plain key and camelCase key. #12786
// This will only penalize the array argument path.
name = key.concat( key.map( jQuery.camelCase ) );
} else {
camel = jQuery.camelCase( key );
// Try the string as a key before any manipulation
if ( key in cache ) {
name = [ key, camel ];
} else {
// If a key with the spaces exists, use it.
// Otherwise, create an array by matching non-whitespace
name = camel;
name = name in cache ?
[ name ] : ( name.match( rnotwhite ) || [] );
}
}
i = name.length;
while ( i-- ) {
delete cache[ name[ i ] ];
}
}
},
hasData: function( owner ) {
return !jQuery.isEmptyObject(
this.cache[ owner[ this.expando ] ] || {}
);
},
discard: function( owner ) {
if ( owner[ this.expando ] ) {
delete this.cache[ owner[ this.expando ] ];
}
}
};
var data_priv = new Data();
var data_user = 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, "-$1" ).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 ) ? jQuery.parseJSON( data ) :
data;
} catch( e ) {}
// Make sure we set the data so it isn't changed later
data_user.set( elem, key, data );
} else {
data = undefined;
}
}
return data;
}
jQuery.extend({
hasData: function( elem ) {
return data_user.hasData( elem ) || data_priv.hasData( elem );
},
data: function( elem, name, data ) {
return data_user.access( elem, name, data );
},
removeData: function( elem, name ) {
data_user.remove( elem, name );
},
// TODO: Now that all calls to _data and _removeData have been replaced
// with direct calls to data_priv methods, these can be deprecated.
_data: function( elem, name, data ) {
return data_priv.access( elem, name, data );
},
_removeData: function( elem, name ) {
data_priv.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 = data_user.get( elem );
if ( elem.nodeType === 1 && !data_priv.get( elem, "hasDataAttrs" ) ) {
i = attrs.length;
while ( i-- ) {
// Support: IE11+
// 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 ] );
}
}
}
data_priv.set( elem, "hasDataAttrs", true );
}
}
return data;
}
// Sets multiple values
if ( typeof key === "object" ) {
return this.each(function() {
data_user.set( this, key );
});
}
return access( this, function( value ) {
var data,
camelKey = jQuery.camelCase( key );
// 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
// with the key as-is
data = data_user.get( elem, key );
if ( data !== undefined ) {
return data;
}
// Attempt to get data from the cache
// with the key camelized
data = data_user.get( elem, camelKey );
if ( data !== undefined ) {
return data;
}
// Attempt to "discover" the data in
// HTML5 custom data-* attrs
data = dataAttr( elem, camelKey, undefined );
if ( data !== undefined ) {
return data;
}
// We tried really hard, but the data doesn't exist.
return;
}
// Set the data...
this.each(function() {
// First, attempt to store a copy or reference of any
// data that might've been store with a camelCased key.
var data = data_user.get( this, camelKey );
// For HTML5 data-* attribute interop, we have to
// store property names with dashes in a camelCase form.
// This might not apply to all properties...*
data_user.set( this, camelKey, value );
// *... In the case of properties that might _actually_
// have dashes, we need to also store a copy of that
// unchanged property.
if ( key.indexOf("-") !== -1 && data !== undefined ) {
data_user.set( this, key, value );
}
});
}, null, value, arguments.length > 1, null, true );
},
removeData: function( key ) {
return this.each(function() {
data_user.remove( this, key );
});
}
});
jQuery.extend({
queue: function( elem, type, data ) {
var queue;
if ( elem ) {
type = ( type || "fx" ) + "queue";
queue = data_priv.get( elem, type );
// Speed up dequeue by getting out quickly if this is just a lookup
if ( data ) {
if ( !queue || jQuery.isArray( data ) ) {
queue = data_priv.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 data_priv.get( elem, key ) || data_priv.access( elem, key, {
empty: jQuery.Callbacks("once memory").add(function() {
data_priv.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 = data_priv.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 cssExpand = [ "Top", "Right", "Bottom", "Left" ];
var isHidden = function( elem, el ) {
// isHidden might be called from jQuery#filter function;
// in that case, element will be second argument
elem = el || elem;
return jQuery.css( elem, "display" ) === "none" || !jQuery.contains( elem.ownerDocument, elem );
};
var rcheckableType = (/^(?:checkbox|radio)$/i);
(function() {
var fragment = document.createDocumentFragment(),
div = fragment.appendChild( document.createElement( "div" ) ),
input = document.createElement( "input" );
// Support: Safari<=5.1
// 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: Safari<=5.1, Android<4.2
// Older WebKit doesn't clone checked state correctly in fragments
support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;
// Support: IE<=11+
// Make sure textarea (and checkbox) defaultValue is properly cloned
div.innerHTML = "<textarea>x</textarea>";
support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;
})();
var strundefined = typeof undefined;
support.focusinBubbles = "onfocusin" in window;
var
rkeyEvent = /^key/,
rmouseEvent = /^(?:mouse|pointer|contextmenu)|click/,
rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
rtypenamespace = /^([^.]*)(?:\.(.+)|)$/;
function returnTrue() {
return true;
}
function returnFalse() {
return false;
}
function safeActiveElement() {
try {
return document.activeElement;
} catch ( err ) { }
}
/*
* 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 = data_priv.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;
}
// 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 !== strundefined && 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, false );
}
}
}
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 = data_priv.hasData( elem ) && data_priv.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 the expando if it's no longer used
if ( jQuery.isEmptyObject( events ) ) {
delete elemData.handle;
data_priv.remove( elem, "events" );
}
},
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(".") >= 0 ) {
// 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.namespace_re = 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 = ( data_priv.get( cur, "events" ) || {} )[ event.type ] && data_priv.get( cur, "handle" );
if ( handle ) {
handle.apply( cur, data );
}
// Native handler
handle = ontype && cur[ ontype ];
if ( handle && handle.apply && jQuery.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) &&
jQuery.acceptData( elem ) ) {
// Call a native DOM method on the target with the same name 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;
},
dispatch: function( event ) {
// Make a writable jQuery.Event from the native event object
event = jQuery.event.fix( event );
var i, j, ret, matched, handleObj,
handlerQueue = [],
args = slice.call( arguments ),
handlers = ( data_priv.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;
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.namespace_re || event.namespace_re.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;
// Find delegate handlers
// Black-hole SVG <use> instance trees (#13180)
// Avoid non-left-click bubbling in Firefox (#3861)
if ( delegateCount && cur.nodeType && (!event.button || event.type !== "click") ) {
for ( ; cur !== this; cur = cur.parentNode || this ) {
// Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
if ( 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 ) >= 0 :
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;
},
// Includes some event props shared by KeyEvent and MouseEvent
props: "altKey bubbles cancelable ctrlKey currentTarget eventPhase metaKey relatedTarget shiftKey target timeStamp view which".split(" "),
fixHooks: {},
keyHooks: {
props: "char charCode key keyCode".split(" "),
filter: function( event, original ) {
// Add which for key events
if ( event.which == null ) {
event.which = original.charCode != null ? original.charCode : original.keyCode;
}
return event;
}
},
mouseHooks: {
props: "button buttons clientX clientY offsetX offsetY pageX pageY screenX screenY toElement".split(" "),
filter: function( event, original ) {
var eventDoc, doc, body,
button = original.button;
// Calculate pageX/Y if missing and clientX/Y available
if ( event.pageX == null && original.clientX != null ) {
eventDoc = event.target.ownerDocument || document;
doc = eventDoc.documentElement;
body = eventDoc.body;
event.pageX = original.clientX + ( doc && doc.scrollLeft || body && body.scrollLeft || 0 ) - ( doc && doc.clientLeft || body && body.clientLeft || 0 );
event.pageY = original.clientY + ( doc && doc.scrollTop || body && body.scrollTop || 0 ) - ( doc && doc.clientTop || body && body.clientTop || 0 );
}
// Add which for click: 1 === left; 2 === middle; 3 === right
// Note: button is not normalized, so don't use it
if ( !event.which && button !== undefined ) {
event.which = ( button & 1 ? 1 : ( button & 2 ? 3 : ( button & 4 ? 2 : 0 ) ) );
}
return event;
}
},
fix: function( event ) {
if ( event[ jQuery.expando ] ) {
return event;
}
// Create a writable copy of the event object and normalize some properties
var i, prop, copy,
type = event.type,
originalEvent = event,
fixHook = this.fixHooks[ type ];
if ( !fixHook ) {
this.fixHooks[ type ] = fixHook =
rmouseEvent.test( type ) ? this.mouseHooks :
rkeyEvent.test( type ) ? this.keyHooks :
{};
}
copy = fixHook.props ? this.props.concat( fixHook.props ) : this.props;
event = new jQuery.Event( originalEvent );
i = copy.length;
while ( i-- ) {
prop = copy[ i ];
event[ prop ] = originalEvent[ prop ];
}
// Support: Cordova 2.5 (WebKit) (#13255)
// All events should have a target; Cordova deviceready doesn't
if ( !event.target ) {
event.target = document;
}
// Support: Safari 6.0+, Chrome<28
// Target should not be a text node (#504, #13143)
if ( event.target.nodeType === 3 ) {
event.target = event.target.parentNode;
}
return fixHook.filter ? fixHook.filter( event, originalEvent ) : event;
},
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;
}
}
}
},
simulate: function( type, elem, event, bubble ) {
// Piggyback on a donor event to simulate a different one.
// Fake originalEvent to avoid donor's stopPropagation, but if the
// simulated event prevents default then we do the same on the donor.
var e = jQuery.extend(
new jQuery.Event(),
event,
{
type: type,
isSimulated: true,
originalEvent: {}
}
);
if ( bubble ) {
jQuery.event.trigger( e, null, elem );
} else {
jQuery.event.dispatch.call( elem, e );
}
if ( e.isDefaultPrevented() ) {
event.preventDefault();
}
}
};
jQuery.removeEvent = function( elem, type, handle ) {
if ( elem.removeEventListener ) {
elem.removeEventListener( type, handle, false );
}
};
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<4.0
src.returnValue === false ?
returnTrue :
returnFalse;
// 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
// http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
jQuery.Event.prototype = {
isDefaultPrevented: returnFalse,
isPropagationStopped: returnFalse,
isImmediatePropagationStopped: returnFalse,
preventDefault: function() {
var e = this.originalEvent;
this.isDefaultPrevented = returnTrue;
if ( e && e.preventDefault ) {
e.preventDefault();
}
},
stopPropagation: function() {
var e = this.originalEvent;
this.isPropagationStopped = returnTrue;
if ( e && e.stopPropagation ) {
e.stopPropagation();
}
},
stopImmediatePropagation: function() {
var e = this.originalEvent;
this.isImmediatePropagationStopped = returnTrue;
if ( e && e.stopImmediatePropagation ) {
e.stopImmediatePropagation();
}
this.stopPropagation();
}
};
// Create mouseenter/leave events using mouseover/out and event-time checks
// Support: Chrome 15+
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 mousenter/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;
}
};
});
// Support: Firefox, Chrome, Safari
// Create "bubbling" focus and blur events
if ( !support.focusinBubbles ) {
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 ), true );
};
jQuery.event.special[ fix ] = {
setup: function() {
var doc = this.ownerDocument || this,
attaches = data_priv.access( doc, fix );
if ( !attaches ) {
doc.addEventListener( orig, handler, true );
}
data_priv.access( doc, fix, ( attaches || 0 ) + 1 );
},
teardown: function() {
var doc = this.ownerDocument || this,
attaches = data_priv.access( doc, fix ) - 1;
if ( !attaches ) {
doc.removeEventListener( orig, handler, true );
data_priv.remove( doc, fix );
} else {
data_priv.access( doc, fix, attaches );
}
}
};
});
}
jQuery.fn.extend({
on: function( types, selector, data, fn, /*INTERNAL*/ 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 ) {
this.on( type, selector, data, types[ type ], one );
}
return this;
}
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 this;
}
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 this.each( function() {
jQuery.event.add( this, types, fn, data, selector );
});
},
one: function( types, selector, data, fn ) {
return this.on( 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 );
});
},
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 );
}
}
});
var
rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/gi,
rtagName = /<([\w:]+)/,
rhtml = /<|&#?\w+;/,
rnoInnerhtml = /<(?:script|style|link)/i,
// checked="checked" or checked
rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
rscriptType = /^$|\/(?:java|ecma)script/i,
rscriptTypeMasked = /^true\/(.*)/,
rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g,
// We have to close these tags to support XHTML (#13200)
wrapMap = {
// Support: IE9
option: [ 1, "<select multiple='multiple'>", "</select>" ],
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: IE9
wrapMap.optgroup = wrapMap.option;
wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
wrapMap.th = wrapMap.td;
// Support: 1.x compatibility
// Manipulating tables requires a tbody
function manipulationTarget( elem, content ) {
return jQuery.nodeName( elem, "table" ) &&
jQuery.nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ?
elem.getElementsByTagName("tbody")[0] ||
elem.appendChild( elem.ownerDocument.createElement("tbody") ) :
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;
}
// Mark scripts as having already been evaluated
function setGlobalEval( elems, refElements ) {
var i = 0,
l = elems.length;
for ( ; i < l; i++ ) {
data_priv.set(
elems[ i ], "globalEval", !refElements || data_priv.get( refElements[ i ], "globalEval" )
);
}
}
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 ( data_priv.hasData( src ) ) {
pdataOld = data_priv.access( src );
pdataCur = data_priv.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 ( data_user.hasData( src ) ) {
udataOld = data_user.access( src );
udataCur = jQuery.extend( {}, udataOld );
data_user.set( dest, udataCur );
}
}
function getAll( context, tag ) {
var ret = context.getElementsByTagName ? context.getElementsByTagName( tag || "*" ) :
context.querySelectorAll ? context.querySelectorAll( tag || "*" ) :
[];
return tag === undefined || tag && jQuery.nodeName( context, tag ) ?
jQuery.merge( [ context ], ret ) :
ret;
}
// 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;
}
}
jQuery.extend({
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: http://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;
},
buildFragment: function( elems, context, scripts, selection ) {
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: QtWebKit, PhantomJS
// 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 ] + elem.replace( rxhtmlTag, "<$1></$2>" ) + wrap[ 2 ];
// Descend through wrappers to the right content
j = wrap[ 0 ];
while ( j-- ) {
tmp = tmp.lastChild;
}
// Support: QtWebKit, PhantomJS
// 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++ ]) ) {
// #4087 - If origin and destination elements are the same, and this is
// that element, do not do anything
if ( selection && jQuery.inArray( elem, selection ) !== -1 ) {
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;
},
cleanData: function( elems ) {
var data, elem, type, key,
special = jQuery.event.special,
i = 0;
for ( ; (elem = elems[ i ]) !== undefined; i++ ) {
if ( jQuery.acceptData( elem ) ) {
key = elem[ data_priv.expando ];
if ( key && (data = data_priv.cache[ key ]) ) {
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 );
}
}
}
if ( data_priv.cache[ key ] ) {
// Discard any remaining `private` data
delete data_priv.cache[ key ];
}
}
}
// Discard any remaining `user` data
delete data_user.cache[ elem[ data_user.expando ] ];
}
}
});
jQuery.fn.extend({
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 this.domManip( arguments, function( elem ) {
if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
var target = manipulationTarget( this, elem );
target.appendChild( elem );
}
});
},
prepend: function() {
return this.domManip( 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 this.domManip( arguments, function( elem ) {
if ( this.parentNode ) {
this.parentNode.insertBefore( elem, this );
}
});
},
after: function() {
return this.domManip( arguments, function( elem ) {
if ( this.parentNode ) {
this.parentNode.insertBefore( elem, this.nextSibling );
}
});
},
remove: function( selector, keepData /* Internal Use Only */ ) {
var elem,
elems = selector ? jQuery.filter( selector, this ) : this,
i = 0;
for ( ; (elem = elems[i]) != null; i++ ) {
if ( !keepData && elem.nodeType === 1 ) {
jQuery.cleanData( getAll( elem ) );
}
if ( elem.parentNode ) {
if ( keepData && jQuery.contains( elem.ownerDocument, elem ) ) {
setGlobalEval( getAll( elem, "script" ) );
}
elem.parentNode.removeChild( elem );
}
}
return this;
},
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 = value.replace( rxhtmlTag, "<$1></$2>" );
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 arg = arguments[ 0 ];
// Make the changes, replacing each context element with the new content
this.domManip( arguments, function( elem ) {
arg = this.parentNode;
jQuery.cleanData( getAll( this ) );
if ( arg ) {
arg.replaceChild( elem, this );
}
});
// Force removal if there was no new content (e.g., from empty arguments)
return arg && (arg.length || arg.nodeType) ? this : this.remove();
},
detach: function( selector ) {
return this.remove( selector, true );
},
domManip: function( args, callback ) {
// Flatten any nested arrays
args = concat.apply( [], args );
var fragment, first, scripts, hasScripts, node, doc,
i = 0,
l = this.length,
set = this,
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 this.each(function( index ) {
var self = set.eq( index );
if ( isFunction ) {
args[ 0 ] = value.call( this, index, self.html() );
}
self.domManip( args, callback );
});
}
if ( l ) {
fragment = jQuery.buildFragment( args, this[ 0 ].ownerDocument, false, this );
first = fragment.firstChild;
if ( fragment.childNodes.length === 1 ) {
fragment = first;
}
if ( first ) {
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: QtWebKit
// jQuery.merge because push.apply(_, arraylike) throws
jQuery.merge( scripts, getAll( node, "script" ) );
}
}
callback.call( this[ 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 || "" ) &&
!data_priv.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 {
jQuery.globalEval( node.textContent.replace( rcleanScript, "" ) );
}
}
}
}
}
}
return this;
}
});
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: QtWebKit
// .get() because push.apply(_, arraylike) throws
push.apply( ret, elems.get() );
}
return this.pushStack( ret );
};
});
var iframe,
elemdisplay = {};
/**
* Retrieve the actual display of a element
* @param {String} name nodeName of the element
* @param {Object} doc Document object
*/
// Called only from within defaultDisplay
function actualDisplay( name, doc ) {
var style,
elem = jQuery( doc.createElement( name ) ).appendTo( doc.body ),
// getDefaultComputedStyle might be reliably used only on attached element
display = window.getDefaultComputedStyle && ( style = window.getDefaultComputedStyle( elem[ 0 ] ) ) ?
// Use of this method is a temporary fix (more like optimization) until something better comes along,
// since it was removed from specification and supported only in FF
style.display : jQuery.css( elem[ 0 ], "display" );
// We don't have any data stored on the element,
// so use "detach" method as fast way to get rid of the element
elem.detach();
return display;
}
/**
* Try to determine the default display value of an element
* @param {String} nodeName
*/
function defaultDisplay( nodeName ) {
var doc = document,
display = elemdisplay[ nodeName ];
if ( !display ) {
display = actualDisplay( nodeName, doc );
// If the simple way fails, read from inside an iframe
if ( display === "none" || !display ) {
// Use the already-created iframe if possible
iframe = (iframe || jQuery( "<iframe frameborder='0' width='0' height='0'/>" )).appendTo( doc.documentElement );
// Always write a new HTML skeleton so Webkit and Firefox don't choke on reuse
doc = iframe[ 0 ].contentDocument;
// Support: IE
doc.write();
doc.close();
display = actualDisplay( nodeName, doc );
iframe.detach();
}
// Store the correct default display
elemdisplay[ nodeName ] = display;
}
return display;
}
var rmargin = (/^margin/);
var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" );
var getStyles = function( elem ) {
// Support: IE<=11+, Firefox<=30+ (#15098, #14150)
// IE throws on elements created in popups
// FF meanwhile throws on frame elements through "defaultView.getComputedStyle"
if ( elem.ownerDocument.defaultView.opener ) {
return elem.ownerDocument.defaultView.getComputedStyle( elem, null );
}
return window.getComputedStyle( elem, null );
};
function curCSS( elem, name, computed ) {
var width, minWidth, maxWidth, ret,
style = elem.style;
computed = computed || getStyles( elem );
// Support: IE9
// getPropertyValue is only needed for .css('filter') (#12537)
if ( computed ) {
ret = computed.getPropertyValue( name ) || computed[ name ];
}
if ( computed ) {
if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {
ret = jQuery.style( elem, name );
}
// Support: iOS < 6
// A tribute to the "awesome hack by Dean Edwards"
// iOS < 6 (at least) returns percentage for a larger set of values, but width seems to be reliably pixels
// this is against the CSSOM draft spec: http://dev.w3.org/csswg/cssom/#resolved-values
if ( 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
// 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 );
}
};
}
(function() {
var pixelPositionVal, boxSizingReliableVal,
docElem = document.documentElement,
container = document.createElement( "div" ),
div = document.createElement( "div" );
if ( !div.style ) {
return;
}
// Support: IE9-11+
// 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:0;height:0;top:0;left:-9999px;margin-top:1px;" +
"position:absolute";
container.appendChild( div );
// Executing both pixelPosition & boxSizingReliable tests require only one layout
// so they're executed at the same time to save the second computation.
function computePixelPositionAndBoxSizingReliable() {
div.style.cssText =
// Support: Firefox<29, Android 2.3
// Vendor-prefix box-sizing
"-webkit-box-sizing:border-box;-moz-box-sizing:border-box;" +
"box-sizing:border-box;display:block;margin-top:1%;top:1%;" +
"border:1px;padding:1px;width:4px;position:absolute";
div.innerHTML = "";
docElem.appendChild( container );
var divStyle = window.getComputedStyle( div, null );
pixelPositionVal = divStyle.top !== "1%";
boxSizingReliableVal = divStyle.width === "4px";
docElem.removeChild( container );
}
// Support: node.js jsdom
// Don't assume that getComputedStyle is a property of the global object
if ( window.getComputedStyle ) {
jQuery.extend( support, {
pixelPosition: function() {
// This test is executed only once but we still do memoizing
// since we can use the boxSizingReliable pre-computing.
// No need to check if the test was already performed, though.
computePixelPositionAndBoxSizingReliable();
return pixelPositionVal;
},
boxSizingReliable: function() {
if ( boxSizingReliableVal == null ) {
computePixelPositionAndBoxSizingReliable();
}
return boxSizingReliableVal;
},
reliableMarginRight: function() {
// Support: Android 2.3
// Check if div with explicit width and no margin-right incorrectly
// gets computed margin-right based on width of container. (#3333)
// WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
// This support function is only executed once so no memoizing is needed.
var ret,
marginDiv = div.appendChild( document.createElement( "div" ) );
// Reset CSS: box-sizing; display; margin; border; padding
marginDiv.style.cssText = div.style.cssText =
// Support: Firefox<29, Android 2.3
// Vendor-prefix box-sizing
"-webkit-box-sizing:content-box;-moz-box-sizing:content-box;" +
"box-sizing:content-box;display:block;margin:0;border:0;padding:0";
marginDiv.style.marginRight = marginDiv.style.width = "0";
div.style.width = "1px";
docElem.appendChild( container );
ret = !parseFloat( window.getComputedStyle( marginDiv, null ).marginRight );
docElem.removeChild( container );
div.removeChild( marginDiv );
return ret;
}
});
}
})();
// A method for quickly swapping in/out CSS properties to get correct calculations.
jQuery.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;
};
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]).+)/,
rnumsplit = new RegExp( "^(" + pnum + ")(.*)$", "i" ),
rrelNum = new RegExp( "^([+-])=(" + pnum + ")", "i" ),
cssShow = { position: "absolute", visibility: "hidden", display: "block" },
cssNormalTransform = {
letterSpacing: "0",
fontWeight: "400"
},
cssPrefixes = [ "Webkit", "O", "Moz", "ms" ];
// Return a css property mapped to a potentially vendor prefixed property
function vendorPropName( style, name ) {
// Shortcut for names that are not vendor prefixed
if ( name in style ) {
return name;
}
// Check for vendor prefixed names
var capName = name[0].toUpperCase() + name.slice(1),
origName = name,
i = cssPrefixes.length;
while ( i-- ) {
name = cssPrefixes[ i ] + capName;
if ( name in style ) {
return name;
}
}
return origName;
}
function setPositiveNumber( elem, value, subtract ) {
var matches = rnumsplit.exec( value );
return matches ?
// Guard against undefined "subtract", e.g., when used as in cssHooks
Math.max( 0, matches[ 1 ] - ( subtract || 0 ) ) + ( matches[ 2 ] || "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 valueIsBorderBox = true,
val = name === "width" ? elem.offsetWidth : elem.offsetHeight,
styles = getStyles( elem ),
isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box";
// 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";
}
function showHide( elements, show ) {
var display, elem, hidden,
values = [],
index = 0,
length = elements.length;
for ( ; index < length; index++ ) {
elem = elements[ index ];
if ( !elem.style ) {
continue;
}
values[ index ] = data_priv.get( elem, "olddisplay" );
display = elem.style.display;
if ( show ) {
// Reset the inline display of this element to learn if it is
// being hidden by cascaded rules or not
if ( !values[ index ] && display === "none" ) {
elem.style.display = "";
}
// Set elements which have been overridden with display: none
// in a stylesheet to whatever the default browser style is
// for such an element
if ( elem.style.display === "" && isHidden( elem ) ) {
values[ index ] = data_priv.access( elem, "olddisplay", defaultDisplay(elem.nodeName) );
}
} else {
hidden = isHidden( elem );
if ( display !== "none" || !hidden ) {
data_priv.set( elem, "olddisplay", hidden ? display : jQuery.css( elem, "display" ) );
}
}
}
// Set the display of most of the elements in a second loop
// to avoid the constant reflow
for ( index = 0; index < length; index++ ) {
elem = elements[ index ];
if ( !elem.style ) {
continue;
}
if ( !show || elem.style.display === "none" || elem.style.display === "" ) {
elem.style.display = show ? values[ index ] || "" : "none";
}
}
return elements;
}
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: {
"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( style, 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 = rrelNum.exec( value )) ) {
value = ( ret[1] + 1 ) * ret[2] + parseFloat( jQuery.css( elem, name ) );
// 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, add 'px' to the (except for certain CSS properties)
if ( type === "number" && !jQuery.cssNumber[ origName ] ) {
value += "px";
}
// Support: IE9-11+
// 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( elem.style, 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 || jQuery.isNumeric( 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" ) ) && elem.offsetWidth === 0 ?
jQuery.swap( elem, cssShow, function() {
return getWidthOrHeight( elem, name, extra );
}) :
getWidthOrHeight( elem, name, extra );
}
},
set: function( elem, value, extra ) {
var styles = extra && getStyles( elem );
return setPositiveNumber( elem, value, extra ?
augmentWidthOrHeight(
elem,
name,
extra,
jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
styles
) : 0
);
}
};
});
// Support: Android 2.3
jQuery.cssHooks.marginRight = addGetHookIf( support.reliableMarginRight,
function( elem, computed ) {
if ( computed ) {
return jQuery.swap( elem, { "display": "inline-block" },
curCSS, [ elem, "marginRight" ] );
}
}
);
// 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 );
},
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 ( isHidden( this ) ) {
jQuery( this ).show();
} else {
jQuery( this ).hide();
}
});
}
});
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 || "swing";
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;
if ( tween.elem[ tween.prop ] != null &&
(!tween.elem.style || 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.style && ( 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: IE9
// 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;
}
};
jQuery.fx = Tween.prototype.init;
// Back Compat <1.8 extension point
jQuery.fx.step = {};
var
fxNow, timerId,
rfxtypes = /^(?:toggle|show|hide)$/,
rfxnum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" ),
rrun = /queueHooks$/,
animationPrefilters = [ defaultPrefilter ],
tweeners = {
"*": [ function( prop, value ) {
var tween = this.createTween( prop, value ),
target = tween.cur(),
parts = rfxnum.exec( value ),
unit = parts && parts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),
// Starting value computation is required for potential unit mismatches
start = ( jQuery.cssNumber[ prop ] || unit !== "px" && +target ) &&
rfxnum.exec( jQuery.css( tween.elem, prop ) ),
scale = 1,
maxIterations = 20;
if ( start && start[ 3 ] !== unit ) {
// Trust units reported by jQuery.css
unit = unit || start[ 3 ];
// Make sure we update the tween properties later on
parts = parts || [];
// Iteratively approximate from a nonzero starting point
start = +target || 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
start = start / scale;
jQuery.style( tween.elem, prop, start + 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 = tween.cur() / target) && scale !== 1 && --maxIterations );
}
// Update tween properties
if ( parts ) {
start = tween.start = +start || +target || 0;
tween.unit = unit;
// If a +=/-= token was provided, we're doing a relative animation
tween.end = parts[ 1 ] ?
start + ( parts[ 1 ] + 1 ) * parts[ 2 ] :
+parts[ 2 ];
}
return tween;
} ]
};
// Animations created synchronously will run synchronously
function createFxNow() {
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 = ( tweeners[ prop ] || [] ).concat( 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 ) {
/* jshint validthis: true */
var prop, value, toggle, tween, hooks, oldfire, display, checkDisplay,
anim = this,
orig = {},
style = elem.style,
hidden = elem.nodeType && isHidden( elem ),
dataShow = data_priv.get( elem, "fxshow" );
// Handle queue: false promises
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();
}
});
});
}
// Height/width overflow pass
if ( elem.nodeType === 1 && ( "height" in props || "width" in props ) ) {
// Make sure that nothing sneaks out
// Record all 3 overflow attributes because IE9-10 do not
// change the overflow attribute when overflowX and
// overflowY are set to the same value
opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];
// Set display property to inline-block for height/width
// animations on inline elements that are having width/height animated
display = jQuery.css( elem, "display" );
// Test default display if display is currently "none"
checkDisplay = display === "none" ?
data_priv.get( elem, "olddisplay" ) || defaultDisplay( elem.nodeName ) : display;
if ( checkDisplay === "inline" && jQuery.css( elem, "float" ) === "none" ) {
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 ];
});
}
// show/hide pass
for ( prop in props ) {
value = props[ prop ];
if ( rfxtypes.exec( value ) ) {
delete props[ prop ];
toggle = toggle || value === "toggle";
if ( value === ( hidden ? "hide" : "show" ) ) {
// If there is dataShow left over from a stopped hide or show and we are going to proceed with show, we should pretend to be hidden
if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {
hidden = true;
} else {
continue;
}
}
orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );
// Any non-fx value stops us from restoring the original display value
} else {
display = undefined;
}
}
if ( !jQuery.isEmptyObject( orig ) ) {
if ( dataShow ) {
if ( "hidden" in dataShow ) {
hidden = dataShow.hidden;
}
} else {
dataShow = data_priv.access( elem, "fxshow", {} );
}
// Store state if its toggle - enables .stop().toggle() to "reverse"
if ( toggle ) {
dataShow.hidden = !hidden;
}
if ( hidden ) {
jQuery( elem ).show();
} else {
anim.done(function() {
jQuery( elem ).hide();
});
}
anim.done(function() {
var prop;
data_priv.remove( elem, "fxshow" );
for ( prop in orig ) {
jQuery.style( elem, prop, orig[ prop ] );
}
});
for ( prop in orig ) {
tween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );
if ( !( prop in dataShow ) ) {
dataShow[ prop ] = tween.start;
if ( hidden ) {
tween.end = tween.start;
tween.start = prop === "width" || prop === "height" ? 1 : 0;
}
}
}
// If this is a noop like .hide().hide(), restore an overwritten display value
} else if ( (display === "none" ? defaultDisplay( elem.nodeName ) : display) === "inline" ) {
style.display = display;
}
}
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 = animationPrefilters.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
// 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: {} }, 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.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 = animationPrefilters[ index ].call( animation, elem, props, animation.opts );
if ( 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, {
tweener: function( props, callback ) {
if ( jQuery.isFunction( props ) ) {
callback = props;
props = [ "*" ];
} else {
props = props.split(" ");
}
var prop,
index = 0,
length = props.length;
for ( ; index < length ; index++ ) {
prop = props[ index ];
tweeners[ prop ] = tweeners[ prop ] || [];
tweeners[ prop ].unshift( callback );
}
},
prefilter: function( callback, prepend ) {
if ( prepend ) {
animationPrefilters.unshift( callback );
} else {
animationPrefilters.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
};
opt.duration = jQuery.fx.off ? 0 : 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( isHidden ).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 || data_priv.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 = data_priv.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 = data_priv.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 = setInterval( jQuery.fx.tick, jQuery.fx.interval );
}
};
jQuery.fx.stop = function() {
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.
// 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 = setTimeout( next, time );
hooks.stop = function() {
clearTimeout( timeout );
};
});
};
(function() {
var input = document.createElement( "input" ),
select = document.createElement( "select" ),
opt = select.appendChild( document.createElement( "option" ) );
input.type = "checkbox";
// Support: iOS<=5.1, Android<=4.2+
// Default value for a checkbox should be "on"
support.checkOn = input.value !== "";
// Support: IE<=11+
// Must access selectedIndex to make default options select
support.optSelected = opt.selected;
// Support: Android<=2.3
// Options inside disabled selects are incorrectly marked as disabled
select.disabled = true;
support.optDisabled = !opt.disabled;
// Support: IE<=11+
// 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 nodeHook, 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 hooks, ret,
nType = elem.nodeType;
// don't get/set attributes on text, comment and attribute nodes
if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
return;
}
// Fallback to prop when attributes are not supported
if ( typeof elem.getAttribute === strundefined ) {
return jQuery.prop( elem, name, value );
}
// All attributes are lowercase
// Grab necessary hook if one is defined
if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
name = name.toLowerCase();
hooks = jQuery.attrHooks[ name ] ||
( jQuery.expr.match.bool.test( name ) ? boolHook : nodeHook );
}
if ( value !== undefined ) {
if ( value === null ) {
jQuery.removeAttr( elem, name );
} else if ( hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ) {
return ret;
} else {
elem.setAttribute( name, value + "" );
return value;
}
} else if ( hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ) {
return ret;
} else {
ret = jQuery.find.attr( elem, name );
// Non-existent attributes return null, we normalize to undefined
return ret == null ?
undefined :
ret;
}
},
removeAttr: function( elem, value ) {
var name, propName,
i = 0,
attrNames = value && value.match( rnotwhite );
if ( attrNames && elem.nodeType === 1 ) {
while ( (name = attrNames[i++]) ) {
propName = jQuery.propFix[ name ] || name;
// Boolean attributes get special treatment (#10870)
if ( jQuery.expr.match.bool.test( name ) ) {
// Set corresponding property to false
elem[ propName ] = false;
}
elem.removeAttribute( name );
}
}
},
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;
}
}
}
}
});
// 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;
if ( !isXML ) {
// Avoid an infinite loop by temporarily removing this function from the getter
handle = attrHandle[ name ];
attrHandle[ name ] = ret;
ret = getter( elem, name, isXML ) != null ?
name.toLowerCase() :
null;
attrHandle[ name ] = handle;
}
return ret;
};
});
var rfocusable = /^(?:input|select|textarea|button)$/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({
propFix: {
"for": "htmlFor",
"class": "className"
},
prop: function( elem, name, value ) {
var ret, hooks, notxml,
nType = elem.nodeType;
// Don't get/set properties on text, comment and attribute nodes
if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
return;
}
notxml = nType !== 1 || !jQuery.isXMLDoc( elem );
if ( notxml ) {
// Fix name and attach hooks
name = jQuery.propFix[ name ] || name;
hooks = jQuery.propHooks[ name ];
}
if ( value !== undefined ) {
return hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ?
ret :
( elem[ name ] = value );
} else {
return hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ?
ret :
elem[ name ];
}
},
propHooks: {
tabIndex: {
get: function( elem ) {
return elem.hasAttribute( "tabindex" ) || rfocusable.test( elem.nodeName ) || elem.href ?
elem.tabIndex :
-1;
}
}
}
});
if ( !support.optSelected ) {
jQuery.propHooks.selected = {
get: function( elem ) {
var parent = elem.parentNode;
if ( parent && parent.parentNode ) {
parent.parentNode.selectedIndex;
}
return null;
}
};
}
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;
jQuery.fn.extend({
addClass: function( value ) {
var classes, elem, cur, clazz, j, finalValue,
proceed = typeof value === "string" && value,
i = 0,
len = this.length;
if ( jQuery.isFunction( value ) ) {
return this.each(function( j ) {
jQuery( this ).addClass( value.call( this, j, this.className ) );
});
}
if ( proceed ) {
// The disjunction here is for better compressibility (see removeClass)
classes = ( value || "" ).match( rnotwhite ) || [];
for ( ; i < len; i++ ) {
elem = this[ i ];
cur = elem.nodeType === 1 && ( elem.className ?
( " " + elem.className + " " ).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 ( elem.className !== finalValue ) {
elem.className = finalValue;
}
}
}
}
return this;
},
removeClass: function( value ) {
var classes, elem, cur, clazz, j, finalValue,
proceed = arguments.length === 0 || typeof value === "string" && value,
i = 0,
len = this.length;
if ( jQuery.isFunction( value ) ) {
return this.each(function( j ) {
jQuery( this ).removeClass( value.call( this, j, this.className ) );
});
}
if ( proceed ) {
classes = ( value || "" ).match( rnotwhite ) || [];
for ( ; i < len; i++ ) {
elem = this[ i ];
// This expression is here for better compressibility (see addClass)
cur = elem.nodeType === 1 && ( elem.className ?
( " " + elem.className + " " ).replace( rclass, " " ) :
""
);
if ( cur ) {
j = 0;
while ( (clazz = classes[j++]) ) {
// Remove *all* instances
while ( cur.indexOf( " " + clazz + " " ) >= 0 ) {
cur = cur.replace( " " + clazz + " ", " " );
}
}
// Only assign if different to avoid unneeded rendering.
finalValue = value ? jQuery.trim( cur ) : "";
if ( elem.className !== finalValue ) {
elem.className = 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, this.className, stateVal), stateVal );
});
}
return this.each(function() {
if ( type === "string" ) {
// Toggle individual class names
var className,
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 ( type === strundefined || type === "boolean" ) {
if ( this.className ) {
// store className if set
data_priv.set( this, "__className__", this.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.
this.className = this.className || value === false ? "" : data_priv.get( this, "__className__" ) || "";
}
});
},
hasClass: function( selector ) {
var className = " " + selector + " ",
i = 0,
l = this.length;
for ( ; i < l; i++ ) {
if ( this[i].nodeType === 1 && (" " + this[i].className + " ").replace(rclass, " ").indexOf( className ) >= 0 ) {
return true;
}
}
return false;
}
});
var rreturn = /\r/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: IE10-11+
// option.text throws exceptions (#14686, #14858)
jQuery.trim( jQuery.text( elem ) );
}
},
select: {
get: function( elem ) {
var value, option,
options = elem.options,
index = elem.selectedIndex,
one = elem.type === "select-one" || index < 0,
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 ];
// IE6-9 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
( support.optDisabled ? !option.disabled : option.getAttribute( "disabled" ) === null ) &&
( !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 ];
if ( (option.selected = jQuery.inArray( option.value, values ) >= 0) ) {
optionSet = true;
}
}
// 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 ) >= 0 );
}
}
};
if ( !support.checkOn ) {
jQuery.valHooks[ this ].get = function( elem ) {
return elem.getAttribute("value") === null ? "on" : elem.value;
};
}
});
// Return jQuery for attributes-only inclusion
jQuery.each( ("blur focus focusin focusout load resize scroll unload click dblclick " +
"mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
"change select submit keydown keypress keyup error 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 );
},
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 );
}
});
var nonce = jQuery.now();
var rquery = (/\?/);
// Support: Android 2.3
// Workaround failure to string-cast null input
jQuery.parseJSON = function( data ) {
return JSON.parse( data + "" );
};
// Cross-browser xml parsing
jQuery.parseXML = function( data ) {
var xml, tmp;
if ( !data || typeof data !== "string" ) {
return null;
}
// Support: IE9
try {
tmp = new DOMParser();
xml = tmp.parseFromString( data, "text/xml" );
} catch ( e ) {
xml = undefined;
}
if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) {
jQuery.error( "Invalid XML: " + data );
}
return xml;
};
var
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 = /^\/\//,
rurl = /^([\w.+-]+:)(?:\/\/(?:[^\/?#]*@|)([^\/?#:]*)(?::(\d+)|)|)/,
/* 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( "*" ),
// Document location
ajaxLocation = window.location.href,
// Segment location into parts
ajaxLocParts = rurl.exec( ajaxLocation.toLowerCase() ) || [];
// 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: ajaxLocation,
type: "GET",
isLocal: rlocalProtocol.test( ajaxLocParts[ 1 ] ),
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: /xml/,
html: /html/,
json: /json/
},
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": jQuery.parseJSON,
// 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,
// Cross-domain detection vars
parts,
// To know if global events are to be dispatched
fireGlobals,
// Loop variable
i,
// 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 = {},
// The jqXHR state
state = 0,
// Default abort message
strAbort = "canceled",
// Fake xhr
jqXHR = {
readyState: 0,
// Builds headers hashtable if needed
getResponseHeader: function( key ) {
var match;
if ( state === 2 ) {
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 state === 2 ? responseHeadersString : null;
},
// Caches the header
setRequestHeader: function( name, value ) {
var lname = name.toLowerCase();
if ( !state ) {
name = requestHeadersNames[ lname ] = requestHeadersNames[ lname ] || name;
requestHeaders[ name ] = value;
}
return this;
},
// Overrides response content-type header
overrideMimeType: function( type ) {
if ( !state ) {
s.mimeType = type;
}
return this;
},
// Status-dependent callbacks
statusCode: function( map ) {
var code;
if ( map ) {
if ( state < 2 ) {
for ( code in map ) {
// Lazy-add the new callback in a way that preserves old ones
statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
}
} else {
// Execute the appropriate callbacks
jqXHR.always( map[ jqXHR.status ] );
}
}
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 ).complete = completeDeferred.add;
jqXHR.success = jqXHR.done;
jqXHR.error = jqXHR.fail;
// Remove hash character (#7531: and string promotion)
// 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 || ajaxLocation ) + "" ).replace( rhash, "" )
.replace( rprotocol, ajaxLocParts[ 1 ] + "//" );
// Alias method option to type as per ticket #12004
s.type = options.method || options.type || s.method || s.type;
// Extract dataTypes list
s.dataTypes = jQuery.trim( s.dataType || "*" ).toLowerCase().match( rnotwhite ) || [ "" ];
// A cross-domain request is in order when we have a protocol:host:port mismatch
if ( s.crossDomain == null ) {
parts = rurl.exec( s.url.toLowerCase() );
s.crossDomain = !!( parts &&
( parts[ 1 ] !== ajaxLocParts[ 1 ] || parts[ 2 ] !== ajaxLocParts[ 2 ] ||
( parts[ 3 ] || ( parts[ 1 ] === "http:" ? "80" : "443" ) ) !==
( ajaxLocParts[ 3 ] || ( ajaxLocParts[ 1 ] === "http:" ? "80" : "443" ) ) )
);
}
// 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 ( state === 2 ) {
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
cacheURL = s.url;
// More options handling for requests with no content
if ( !s.hasContent ) {
// If data is available, append data to url
if ( s.data ) {
cacheURL = ( s.url += ( 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 url if needed
if ( s.cache === false ) {
s.url = rts.test( cacheURL ) ?
// If there is already a '_' parameter, set its value
cacheURL.replace( rts, "$1_=" + nonce++ ) :
// Otherwise add one to the end
cacheURL + ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + nonce++;
}
}
// 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 || state === 2 ) ) {
// Abort if not done already and return
return jqXHR.abort();
}
// Aborting is no longer a cancellation
strAbort = "abort";
// Install callbacks on deferreds
for ( i in { success: 1, error: 1, complete: 1 } ) {
jqXHR[ i ]( s[ i ] );
}
// 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 ] );
}
// Timeout
if ( s.async && s.timeout > 0 ) {
timeoutTimer = setTimeout(function() {
jqXHR.abort("timeout");
}, s.timeout );
}
try {
state = 1;
transport.send( requestHeaders, done );
} catch ( e ) {
// Propagate exception as error if not done
if ( state < 2 ) {
done( -1, e );
// Simply rethrow otherwise
} else {
throw e;
}
}
}
// Callback for when everything is done
function done( status, nativeStatusText, responses, headers ) {
var isSuccess, success, error, response, modified,
statusText = nativeStatusText;
// Called once
if ( state === 2 ) {
return;
}
// State is "done" now
state = 2;
// Clear timeout if it exists
if ( timeoutTimer ) {
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;
}
return jQuery.ajax({
url: url,
type: method,
dataType: type,
data: data,
success: callback
});
};
});
jQuery._evalUrl = function( url ) {
return jQuery.ajax({
url: url,
type: "GET",
dataType: "script",
async: false,
global: false,
"throws": true
});
};
jQuery.fn.extend({
wrapAll: function( html ) {
var wrap;
if ( jQuery.isFunction( html ) ) {
return this.each(function( i ) {
jQuery( this ).wrapAll( html.call(this, i) );
});
}
if ( 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() {
return this.parent().each(function() {
if ( !jQuery.nodeName( this, "body" ) ) {
jQuery( this ).replaceWith( this.childNodes );
}
}).end();
}
});
jQuery.expr.filters.hidden = function( elem ) {
// Support: Opera <= 12.12
// Opera reports offsetWidths and offsetHeights less than zero on some elements
return elem.offsetWidth <= 0 && elem.offsetHeight <= 0;
};
jQuery.expr.filters.visible = function( elem ) {
return !jQuery.expr.filters.hidden( elem );
};
var r20 = /%20/g,
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" ? 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, value ) {
// If value is a function, invoke it and return its value
value = jQuery.isFunction( value ) ? value() : ( value == null ? "" : value );
s[ s.length ] = encodeURIComponent( key ) + "=" + encodeURIComponent( value );
};
// Set traditional to true for jQuery <= 1.3.2 behavior.
if ( traditional === undefined ) {
traditional = jQuery.ajaxSettings && jQuery.ajaxSettings.traditional;
}
// 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( "&" ).replace( r20, "+" );
};
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();
}
});
jQuery.ajaxSettings.xhr = function() {
try {
return new XMLHttpRequest();
} catch( e ) {}
};
var xhrId = 0,
xhrCallbacks = {},
xhrSuccessStatus = {
// file protocol always yields status code 0, assume 200
0: 200,
// Support: IE9
// #1450: sometimes IE returns 1223 when it should be 204
1223: 204
},
xhrSupported = jQuery.ajaxSettings.xhr();
// Support: IE9
// Open requests must be manually aborted on unload (#5280)
// See https://support.microsoft.com/kb/2856746 for more info
if ( window.attachEvent ) {
window.attachEvent( "onunload", function() {
for ( var key in xhrCallbacks ) {
xhrCallbacks[ key ]();
}
});
}
support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
support.ajax = xhrSupported = !!xhrSupported;
jQuery.ajaxTransport(function( options ) {
var callback;
// Cross domain only allowed if supported through XMLHttpRequest
if ( support.cors || xhrSupported && !options.crossDomain ) {
return {
send: function( headers, complete ) {
var i,
xhr = options.xhr(),
id = ++xhrId;
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 ) {
delete xhrCallbacks[ id ];
callback = xhr.onload = xhr.onerror = null;
if ( type === "abort" ) {
xhr.abort();
} else if ( type === "error" ) {
complete(
// file: protocol always yields status 0; see #8605, #14207
xhr.status,
xhr.statusText
);
} else {
complete(
xhrSuccessStatus[ xhr.status ] || xhr.status,
xhr.statusText,
// Support: IE9
// Accessing binary-data responseText throws an exception
// (#11426)
typeof xhr.responseText === "string" ? {
text: xhr.responseText
} : undefined,
xhr.getAllResponseHeaders()
);
}
}
};
};
// Listen to events
xhr.onload = callback();
xhr.onerror = callback("error");
// Create the abort callback
callback = xhrCallbacks[ id ] = 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();
}
}
};
}
});
// Install script dataType
jQuery.ajaxSetup({
accepts: {
script: "text/javascript, application/javascript, application/ecmascript, application/x-ecmascript"
},
contents: {
script: /(?:java|ecma)script/
},
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({
async: true,
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 );
}
}
);
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") && 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() {
// Restore preexisting value
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";
}
});
// data: 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 ( !data || typeof data !== "string" ) {
return null;
}
if ( typeof context === "boolean" ) {
keepScripts = context;
context = false;
}
context = context || document;
var parsed = rsingleTag.exec( data ),
scripts = !keepScripts && [];
// Single tag
if ( parsed ) {
return [ context.createElement( parsed[1] ) ];
}
parsed = jQuery.buildFragment( [ data ], context, scripts );
if ( scripts && scripts.length ) {
jQuery( scripts ).remove();
}
return jQuery.merge( [], parsed.childNodes );
};
// Keep a copy of the old load method
var _load = jQuery.fn.load;
/**
* Load a url into a page
*/
jQuery.fn.load = function( url, params, callback ) {
if ( typeof url !== "string" && _load ) {
return _load.apply( this, arguments );
}
var selector, type, response,
self = this,
off = url.indexOf(" ");
if ( off >= 0 ) {
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
type: type,
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 );
}).complete( callback && function( jqXHR, status ) {
self.each( callback, 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.filters.animated = function( elem ) {
return jQuery.grep(jQuery.timers, function( fn ) {
return elem === fn.elem;
}).length;
};
var docElem = window.document.documentElement;
/**
* 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 ) ) {
options = options.call( elem, i, 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 ) {
if ( arguments.length ) {
return options === undefined ?
this :
this.each(function( i ) {
jQuery.offset.setOffset( this, options, i );
});
}
var docElem, win,
elem = this[ 0 ],
box = { top: 0, left: 0 },
doc = elem && elem.ownerDocument;
if ( !doc ) {
return;
}
docElem = doc.documentElement;
// Make sure it's not a disconnected DOM node
if ( !jQuery.contains( docElem, elem ) ) {
return box;
}
// Support: BlackBerry 5, iOS 3 (original iPhone)
// If we don't have gBCR, just use 0,0 rather than error
if ( typeof elem.getBoundingClientRect !== strundefined ) {
box = elem.getBoundingClientRect();
}
win = getWindow( doc );
return {
top: box.top + win.pageYOffset - docElem.clientTop,
left: box.left + win.pageXOffset - docElem.clientLeft
};
},
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 += jQuery.css( offsetParent[ 0 ], "borderTopWidth", true );
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 )
};
},
offsetParent: function() {
return this.map(function() {
var offsetParent = this.offsetParent || docElem;
while ( offsetParent && ( !jQuery.nodeName( offsetParent, "html" ) && jQuery.css( offsetParent, "position" ) === "static" ) ) {
offsetParent = offsetParent.offsetParent;
}
return offsetParent || docElem;
});
}
});
// 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 : window.pageXOffset,
top ? val : window.pageYOffset
);
} else {
elem[ method ] = val;
}
}, method, val, arguments.length, null );
};
});
// Support: Safari<7+, Chrome<37+
// Add the top/left cssHooks using jQuery.fn.position
// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
// Blink bug: https://code.google.com/p/chromium/issues/detail?id=229280
// 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 ) ) {
// As of 5/8/2012 this will yield incorrect results for Mobile Safari, but there
// isn't a whole lot we can do. See pull request at this URL for discussion:
// https://github.com/jquery/jquery/pull/764
return 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, null );
};
});
});
// The number of elements contained in the matched element set
jQuery.fn.size = function() {
return this.length;
};
jQuery.fn.andSelf = jQuery.fn.addBack;
// 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 ( typeof noGlobal === strundefined ) {
window.jQuery = window.$ = jQuery;
}
return jQuery;
}));
},{}],7:[function(require,module,exports){
(function (global){
/**
* @license
* lodash 3.2.0 (Custom Build) <https://lodash.com/>
* Build: `lodash modern -d -o ./index.js`
* Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
* Based on Underscore.js 1.7.0 <http://underscorejs.org/LICENSE>
* Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
* Available under MIT license <https://lodash.com/license>
*/
;(function() {
/** Used as a safe reference for `undefined` in pre-ES5 environments. */
var undefined;
/** Used as the semantic version number. */
var VERSION = '3.2.0';
/** 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,
REARG_FLAG = 128,
ARY_FLAG = 256;
/** Used as default options for `_.trunc`. */
var DEFAULT_TRUNC_LENGTH = 30,
DEFAULT_TRUNC_OMISSION = '...';
/** Used to detect when a function becomes hot. */
var HOT_COUNT = 150,
HOT_SPAN = 16;
/** Used to indicate the type of lazy iteratees. */
var LAZY_FILTER_FLAG = 0,
LAZY_MAP_FLAG = 1,
LAZY_WHILE_FLAG = 2;
/** Used as the `TypeError` message for "Functions" methods. */
var FUNC_ERROR_TEXT = 'Expected a function';
/** Used as the internal argument placeholder. */
var PLACEHOLDER = '__lodash_placeholder__';
/** `Object#toString` result references. */
var argsTag = '[object Arguments]',
arrayTag = '[object Array]',
boolTag = '[object Boolean]',
dateTag = '[object Date]',
errorTag = '[object Error]',
funcTag = '[object Function]',
mapTag = '[object Map]',
numberTag = '[object Number]',
objectTag = '[object Object]',
regexpTag = '[object RegExp]',
setTag = '[object Set]',
stringTag = '[object String]',
weakMapTag = '[object WeakMap]';
var arrayBufferTag = '[object ArrayBuffer]',
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 ES template delimiters.
* See the [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-template-literal-lexical-components)
* for more details.
*/
var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;
/** Used to match `RegExp` flags from their coerced string values. */
var reFlags = /\w*$/;
/** Used to detect named functions. */
var reFuncName = /^\s*function[ \n\r\t]+\w/;
/** Used to detect hexadecimal string values. */
var reHexPrefix = /^0[xX]/;
/** Used to detect host constructors (Safari > 5). */
var reHostCtor = /^\[object .+?Constructor\]$/;
/** Used to match latin-1 supplementary letters (excluding mathematical operators). */
var reLatin1 = /[\xc0-\xd6\xd8-\xde\xdf-\xf6\xf8-\xff]/g;
/** Used to ensure capturing order of template delimiters. */
var reNoMatch = /($^)/;
/**
* Used to match `RegExp` special characters.
* See this [article on `RegExp` characters](http://www.regular-expressions.info/characters.html#special)
* for more details.
*/
var reRegExpChars = /[.*+?^${}()|[\]\/\\]/g,
reHasRegExpChars = RegExp(reRegExpChars.source);
/** Used to detect functions containing a `this` reference. */
var reThis = /\bthis\b/;
/** Used to match unescaped characters in compiled string literals. */
var reUnescapedString = /['\n\r\u2028\u2029\\]/g;
/** Used to match words to create compound words. */
var reWords = (function() {
var upper = '[A-Z\\xc0-\\xd6\\xd8-\\xde]',
lower = '[a-z\\xdf-\\xf6\\xf8-\\xff]+';
return RegExp(upper + '{2,}(?=' + upper + lower + ')|' + upper + '?' + lower + '|' + upper + '+|[0-9]+', 'g');
}());
/** Used to detect and test for whitespace. */
var whitespace = (
// Basic whitespace characters.
' \t\x0b\f\xa0\ufeff' +
// Line terminators.
'\n\r\u2028\u2029' +
// Unicode category "Zs" space separators.
'\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000'
);
/** Used to assign default `context` object properties. */
var contextProps = [
'Array', 'ArrayBuffer', 'Date', 'Error', 'Float32Array', 'Float64Array',
'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Math', 'Number',
'Object', 'RegExp', 'Set', 'String', '_', 'clearTimeout', 'document',
'isFinite', 'parseInt', 'setTimeout', 'TypeError', 'Uint8Array',
'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',
'window', 'WinRTError'
];
/** 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[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[boolTag] =
cloneableTags[dateTag] = cloneableTags[float32Tag] =
cloneableTags[float64Tag] = cloneableTags[int8Tag] =
cloneableTags[int16Tag] = cloneableTags[int32Tag] =
cloneableTags[numberTag] = cloneableTags[objectTag] =
cloneableTags[regexpTag] = cloneableTags[stringTag] =
cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
cloneableTags[errorTag] = cloneableTags[funcTag] =
cloneableTags[mapTag] = cloneableTags[setTag] =
cloneableTags[weakMapTag] = false;
/** Used as an internal `_.debounce` options object by `_.throttle`. */
var debounceOptions = {
'leading': false,
'maxWait': 0,
'trailing': 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 determine if values are of the language type `Object`. */
var objectTypes = {
'function': true,
'object': true
};
/** Used to escape characters for inclusion in compiled string literals. */
var stringEscapes = {
'\\': '\\',
"'": "'",
'\n': 'n',
'\r': 'r',
'\u2028': 'u2028',
'\u2029': 'u2029'
};
/**
* Used as a reference to the global object.
*
* The `this` value is used if it is the global object to avoid Greasemonkey's
* restricted `window` object, otherwise the `window` object is used.
*/
var root = (objectTypes[typeof window] && window !== (this && this.window)) ? window : this;
/** Detect free variable `exports`. */
var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports;
/** Detect free variable `module`. */
var freeModule = objectTypes[typeof module] && module && !module.nodeType && module;
/** Detect free variable `global` from Node.js or Browserified code and use it as `root`. */
var freeGlobal = freeExports && freeModule && typeof global == 'object' && global;
if (freeGlobal && (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal || freeGlobal.self === freeGlobal)) {
root = freeGlobal;
}
/** Detect the popular CommonJS extension `module.exports`. */
var moduleExports = freeModule && freeModule.exports === freeExports && freeExports;
/*--------------------------------------------------------------------------*/
/**
* The base implementation of `compareAscending` which compares values and
* sorts them in ascending order without guaranteeing a stable sort.
*
* @private
* @param {*} value The value to compare to `other`.
* @param {*} other The value to compare to `value`.
* @returns {number} Returns the sort order indicator for `value`.
*/
function baseCompareAscending(value, other) {
if (value !== other) {
var valIsReflexive = value === value,
othIsReflexive = other === other;
if (value > other || !valIsReflexive || (typeof value == 'undefined' && othIsReflexive)) {
return 1;
}
if (value < other || !othIsReflexive || (typeof other == 'undefined' && valIsReflexive)) {
return -1;
}
}
return 0;
}
/**
* The base implementation of `_.indexOf` without support for binary searches.
*
* @private
* @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`.
*/
function baseIndexOf(array, value, fromIndex) {
if (value !== value) {
return indexOfNaN(array, fromIndex);
}
var index = (fromIndex || 0) - 1,
length = array.length;
while (++index < length) {
if (array[index] === value) {
return index;
}
}
return -1;
}
/**
* The base implementation of `_.sortBy` and `_.sortByAll` 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;
}
/**
* Converts `value` to a string if it is not one. An empty string is returned
* for `null` or `undefined` values.
*
* @private
* @param {*} value The value to process.
* @returns {string} Returns the string.
*/
function baseToString(value) {
if (typeof value == 'string') {
return value;
}
return value == null ? '' : (value + '');
}
/**
* Used by `_.max` and `_.min` as the default callback for string values.
*
* @private
* @param {string} string The string to inspect.
* @returns {number} Returns the code unit of the first character of the string.
*/
function charAtCallback(string) {
return string.charCodeAt(0);
}
/**
* Used by `_.trim` and `_.trimLeft` to get the index of the first character
* of `string` that is not found in `chars`.
*
* @private
* @param {string} string The string to inspect.
* @param {string} chars The characters to find.
* @returns {number} Returns the index of the first character not found in `chars`.
*/
function charsLeftIndex(string, chars) {
var index = -1,
length = string.length;
while (++index < length && chars.indexOf(string.charAt(index)) > -1) {}
return index;
}
/**
* Used by `_.trim` and `_.trimRight` to get the index of the last character
* of `string` that is not found in `chars`.
*
* @private
* @param {string} string The string to inspect.
* @param {string} chars The characters to find.
* @returns {number} Returns the index of the last character not found in `chars`.
*/
function charsRightIndex(string, chars) {
var index = string.length;
while (index-- && chars.indexOf(string.charAt(index)) > -1) {}
return index;
}
/**
* Used by `_.sortBy` to compare transformed elements of a collection and stable
* sort them in ascending order.
*
* @private
* @param {Object} object The object to compare to `other`.
* @param {Object} other The object to compare to `object`.
* @returns {number} Returns the sort order indicator for `object`.
*/
function compareAscending(object, other) {
return baseCompareAscending(object.criteria, other.criteria) || (object.index - other.index);
}
/**
* Used by `_.sortByAll` to compare multiple properties of each element
* in a collection and stable sort them in ascending order.
*
* @private
* @param {Object} object The object to compare to `other`.
* @param {Object} other The object to compare to `object`.
* @returns {number} Returns the sort order indicator for `object`.
*/
function compareMultipleAscending(object, other) {
var index = -1,
objCriteria = object.criteria,
othCriteria = other.criteria,
length = objCriteria.length;
while (++index < length) {
var result = baseCompareAscending(objCriteria[index], othCriteria[index]);
if (result) {
return result;
}
}
// 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://code.google.com/p/v8/issues/detail?id=90 for more details.
return object.index - other.index;
}
/**
* 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 index at which the first occurrence of `NaN` is found in `array`.
* If `fromRight` is provided elements of `array` are iterated from right to left.
*
* @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 = fromRight ? (fromIndex || length) : ((fromIndex || 0) - 1);
while ((fromRight ? index-- : ++index < length)) {
var other = array[index];
if (other !== other) {
return index;
}
}
return -1;
}
/**
* Checks if `value` is object-like.
*
* @private
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is object-like, else `false`.
*/
function isObjectLike(value) {
return (value && typeof value == 'object') || false;
}
/**
* Used by `trimmedLeftIndex` and `trimmedRightIndex` to determine if a
* character code is whitespace.
*
* @private
* @param {number} charCode The character code to inspect.
* @returns {boolean} Returns `true` if `charCode` is whitespace, else `false`.
*/
function isSpace(charCode) {
return ((charCode <= 160 && (charCode >= 9 && charCode <= 13) || charCode == 32 || charCode == 160) || charCode == 5760 || charCode == 6158 ||
(charCode >= 8192 && (charCode <= 8202 || charCode == 8232 || charCode == 8233 || charCode == 8239 || charCode == 8287 || charCode == 12288 || charCode == 65279)));
}
/**
* 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 = -1,
result = [];
while (++index < length) {
if (array[index] === placeholder) {
array[index] = PLACEHOLDER;
result[++resIndex] = index;
}
}
return result;
}
/**
* An implementation of `_.uniq` optimized for sorted arrays without support
* for callback shorthands and `this` binding.
*
* @private
* @param {Array} array The array to inspect.
* @param {Function} [iteratee] The function invoked per iteration.
* @returns {Array} Returns the new duplicate-value-free array.
*/
function sortedUniq(array, iteratee) {
var seen,
index = -1,
length = array.length,
resIndex = -1,
result = [];
while (++index < length) {
var value = array[index],
computed = iteratee ? iteratee(value, index, array) : value;
if (!index || seen !== computed) {
seen = computed;
result[++resIndex] = value;
}
}
return result;
}
/**
* Used by `_.trim` and `_.trimLeft` to get the index of the first non-whitespace
* character of `string`.
*
* @private
* @param {string} string The string to inspect.
* @returns {number} Returns the index of the first non-whitespace character.
*/
function trimmedLeftIndex(string) {
var index = -1,
length = string.length;
while (++index < length && isSpace(string.charCodeAt(index))) {}
return index;
}
/**
* Used by `_.trim` and `_.trimRight` to get the index of the last non-whitespace
* character of `string`.
*
* @private
* @param {string} string The string to inspect.
* @returns {number} Returns the index of the last non-whitespace character.
*/
function trimmedRightIndex(string) {
var index = string.length;
while (index-- && isSpace(string.charCodeAt(index))) {}
return index;
}
/**
* 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 given `context` object.
*
* @static
* @memberOf _
* @category Utility
* @param {Object} [context=root] The context object.
* @returns {Function} Returns a new `lodash` function.
* @example
*
* _.mixin({ 'add': function(a, b) { return a + b; } });
*
* var lodash = _.runInContext();
* lodash.mixin({ 'sub': function(a, b) { return a - b; } });
*
* _.isFunction(_.add);
* // => true
* _.isFunction(_.sub);
* // => false
*
* lodash.isFunction(lodash.add);
* // => false
* lodash.isFunction(lodash.sub);
* // => true
*
* // using `context` to mock `Date#getTime` use in `_.now`
* var mock = _.runInContext({
* 'Date': function() {
* return { 'getTime': getTimeMock };
* }
* });
*
* // or creating a suped-up `defer` in Node.js
* var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;
*/
function runInContext(context) {
// Avoid issues with some ES3 environments that attempt to use values, named
// after built-in constructors like `Object`, for the creation of literals.
// ES5 clears this up by stating that literals must use built-in constructors.
// See https://es5.github.io/#x11.1.5 for more details.
context = context ? _.defaults(root.Object(), context, _.pick(root, contextProps)) : root;
/** Native constructor references. */
var Array = context.Array,
Date = context.Date,
Error = context.Error,
Function = context.Function,
Math = context.Math,
Number = context.Number,
Object = context.Object,
RegExp = context.RegExp,
String = context.String,
TypeError = context.TypeError;
/** Used for native method references. */
var arrayProto = Array.prototype,
objectProto = Object.prototype;
/** Used to detect DOM support. */
var document = (document = context.window) && document.document;
/** Used to resolve the decompiled source of functions. */
var fnToString = Function.prototype.toString;
/** Used to the length of n-tuples for `_.unzip`. */
var getLength = baseProperty('length');
/** Used to check objects for own properties. */
var hasOwnProperty = objectProto.hasOwnProperty;
/** Used to generate unique IDs. */
var idCounter = 0;
/**
* Used to resolve the `toStringTag` of values.
* See the [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.prototype.tostring)
* for more details.
*/
var objToString = objectProto.toString;
/** Used to restore the original `_` reference in `_.noConflict`. */
var oldDash = context._;
/** Used to detect if a method is native. */
var reNative = RegExp('^' +
escapeRegExp(objToString)
.replace(/toString|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
);
/** Native method references. */
var ArrayBuffer = isNative(ArrayBuffer = context.ArrayBuffer) && ArrayBuffer,
bufferSlice = isNative(bufferSlice = ArrayBuffer && new ArrayBuffer(0).slice) && bufferSlice,
ceil = Math.ceil,
clearTimeout = context.clearTimeout,
floor = Math.floor,
getPrototypeOf = isNative(getPrototypeOf = Object.getPrototypeOf) && getPrototypeOf,
push = arrayProto.push,
propertyIsEnumerable = objectProto.propertyIsEnumerable,
Set = isNative(Set = context.Set) && Set,
setTimeout = context.setTimeout,
splice = arrayProto.splice,
Uint8Array = isNative(Uint8Array = context.Uint8Array) && Uint8Array,
WeakMap = isNative(WeakMap = context.WeakMap) && WeakMap;
/** Used to clone array buffers. */
var Float64Array = (function() {
// Safari 5 errors when using an array buffer to initialize a typed array
// where the array buffer's `byteLength` is not a multiple of the typed
// array's `BYTES_PER_ELEMENT`.
try {
var func = isNative(func = context.Float64Array) && func,
result = new func(new ArrayBuffer(10), 0, 1) && func;
} catch(e) {}
return result;
}());
/* Native method references for those with the same name as other `lodash` methods. */
var nativeIsArray = isNative(nativeIsArray = Array.isArray) && nativeIsArray,
nativeCreate = isNative(nativeCreate = Object.create) && nativeCreate,
nativeIsFinite = context.isFinite,
nativeKeys = isNative(nativeKeys = Object.keys) && nativeKeys,
nativeMax = Math.max,
nativeMin = Math.min,
nativeNow = isNative(nativeNow = Date.now) && nativeNow,
nativeNumIsFinite = isNative(nativeNumIsFinite = Number.isFinite) && nativeNumIsFinite,
nativeParseInt = context.parseInt,
nativeRandom = Math.random;
/** Used as references for `-Infinity` and `Infinity`. */
var NEGATIVE_INFINITY = Number.NEGATIVE_INFINITY,
POSITIVE_INFINITY = Number.POSITIVE_INFINITY;
/** Used as references for the maximum length and index of an array. */
var MAX_ARRAY_LENGTH = Math.pow(2, 32) - 1,
MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,
HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;
/** Used as the size, in bytes, of each `Float64Array` element. */
var FLOAT64_BYTES_PER_ELEMENT = Float64Array ? Float64Array.BYTES_PER_ELEMENT : 0;
/**
* Used as the maximum length of an array-like value.
* See the [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-number.max_safe_integer)
* for more details.
*/
var MAX_SAFE_INTEGER = Math.pow(2, 53) - 1;
/** Used to store function metadata. */
var metaMap = WeakMap && new WeakMap;
/*------------------------------------------------------------------------*/
/**
* Creates a `lodash` object which wraps `value` to enable implicit chaining.
* Methods that operate on and return arrays, collections, and functions can
* be chained together. Methods that return a boolean or single value will
* automatically end the chain returning the unwrapped value. Explicit chaining
* may be enabled using `_.chain`. The execution of chained methods is lazy,
* that is, execution is deferred until `_#value` is implicitly or explicitly
* called.
*
* Lazy evaluation allows several methods to support shortcut fusion. Shortcut
* fusion is an optimization that merges iteratees to avoid creating intermediate
* arrays and reduce the number of iteratee executions.
*
* 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 also have the following `Array` methods:
* `concat`, `join`, `pop`, `push`, `reverse`, `shift`, `slice`, `sort`, `splice`,
* and `unshift`
*
* The wrapper methods that support shortcut fusion are:
* `compact`, `drop`, `dropRight`, `dropRightWhile`, `dropWhile`, `filter`,
* `first`, `initial`, `last`, `map`, `pluck`, `reject`, `rest`, `reverse`,
* `slice`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, `toArray`,
* and `where`
*
* The chainable wrapper methods are:
* `after`, `ary`, `assign`, `at`, `before`, `bind`, `bindAll`, `bindKey`,
* `callback`, `chain`, `chunk`, `commit`, `compact`, `concat`, `constant`,
* `countBy`, `create`, `curry`, `debounce`, `defaults`, `defer`, `delay`,
* `difference`, `drop`, `dropRight`, `dropRightWhile`, `dropWhile`, `fill`,
* `filter`, `flatten`, `flattenDeep`, `flow`, `flowRight`, `forEach`,
* `forEachRight`, `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `functions`,
* `groupBy`, `indexBy`, `initial`, `intersection`, `invert`, `invoke`, `keys`,
* `keysIn`, `map`, `mapValues`, `matches`, `memoize`, `merge`, `mixin`,
* `negate`, `noop`, `omit`, `once`, `pairs`, `partial`, `partialRight`,
* `partition`, `pick`, `plant`, `pluck`, `property`, `propertyOf`, `pull`,
* `pullAt`, `push`, `range`, `rearg`, `reject`, `remove`, `rest`, `reverse`,
* `shuffle`, `slice`, `sort`, `sortBy`, `sortByAll`, `splice`, `spread`,
* `take`, `takeRight`, `takeRightWhile`, `takeWhile`, `tap`, `throttle`,
* `thru`, `times`, `toArray`, `toPlainObject`, `transform`, `union`, `uniq`,
* `unshift`, `unzip`, `values`, `valuesIn`, `where`, `without`, `wrap`, `xor`,
* `zip`, and `zipObject`
*
* The wrapper methods that are **not** chainable by default are:
* `attempt`, `camelCase`, `capitalize`, `clone`, `cloneDeep`, `deburr`,
* `endsWith`, `escape`, `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`,
* `findLast`, `findLastIndex`, `findLastKey`, `findWhere`, `first`, `has`,
* `identity`, `includes`, `indexOf`, `isArguments`, `isArray`, `isBoolean`,
* `isDate`, `isElement`, `isEmpty`, `isEqual`, `isError`, `isFinite`,
* `isFunction`, `isMatch`, `isNative`, `isNaN`, `isNull`, `isNumber`,
* `isObject`, `isPlainObject`, `isRegExp`, `isString`, `isUndefined`,
* `isTypedArray`, `join`, `kebabCase`, `last`, `lastIndexOf`, `max`, `min`,
* `noConflict`, `now`, `pad`, `padLeft`, `padRight`, `parseInt`, `pop`,
* `random`, `reduce`, `reduceRight`, `repeat`, `result`, `runInContext`,
* `shift`, `size`, `snakeCase`, `some`, `sortedIndex`, `sortedLastIndex`,
* `startCase`, `startsWith`, `template`, `trim`, `trimLeft`, `trimRight`,
* `trunc`, `unescape`, `uniqueId`, `value`, and `words`
*
* The wrapper method `sample` will return a wrapped value when `n` is provided,
* otherwise an unwrapped value is returned.
*
* @name _
* @constructor
* @category Chain
* @param {*} value The value to wrap in a `lodash` instance.
* @returns {Object} Returns the new `lodash` wrapper instance.
* @example
*
* var wrapped = _([1, 2, 3]);
*
* // returns an unwrapped value
* wrapped.reduce(function(sum, n) { return sum + n; });
* // => 6
*
* // returns a wrapped value
* var squares = wrapped.map(function(n) { return n * n; });
*
* _.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, '__chain__') && hasOwnProperty.call(value, '__wrapped__')) {
return wrapperClone(value);
}
}
return new LodashWrapper(value);
}
/**
* The base constructor for creating `lodash` wrapper objects.
*
* @private
* @param {*} value The value to wrap.
* @param {boolean} [chainAll] Enable chaining for all wrapper methods.
* @param {Array} [actions=[]] Actions to peform to resolve the unwrapped value.
*/
function LodashWrapper(value, chainAll, actions) {
this.__wrapped__ = value;
this.__actions__ = actions || [];
this.__chain__ = !!chainAll;
}
/**
* An object environment feature flags.
*
* @static
* @memberOf _
* @type Object
*/
var support = lodash.support = {};
(function(x) {
/**
* Detect if functions can be decompiled by `Function#toString`
* (all but Firefox OS certified apps, older Opera mobile browsers, and
* the PlayStation 3; forced `false` for Windows 8 apps).
*
* @memberOf _.support
* @type boolean
*/
support.funcDecomp = !isNative(context.WinRTError) && reThis.test(runInContext);
/**
* Detect if `Function#name` is supported (all but IE).
*
* @memberOf _.support
* @type boolean
*/
support.funcNames = typeof Function.name == 'string';
/**
* Detect if the DOM is supported.
*
* @memberOf _.support
* @type boolean
*/
try {
support.dom = document.createDocumentFragment().nodeType === 11;
} catch(e) {
support.dom = false;
}
/**
* Detect if `arguments` object indexes are non-enumerable.
*
* In Firefox < 4, IE < 9, PhantomJS, and Safari < 5.1 `arguments` object
* indexes are non-enumerable. Chrome < 25 and Node.js < 0.11.0 treat
* `arguments` object indexes as non-enumerable and fail `hasOwnProperty`
* checks for indexes that exceed their function's formal parameters with
* associated values of `0`.
*
* @memberOf _.support
* @type boolean
*/
try {
support.nonEnumArgs = !propertyIsEnumerable.call(arguments, 1);
} catch(e) {
support.nonEnumArgs = true;
}
}(0, 0));
/**
* 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
}
};
/*------------------------------------------------------------------------*/
/**
* Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.
*
* @private
* @param {*} value The value to wrap.
*/
function LazyWrapper(value) {
this.__wrapped__ = value;
this.__actions__ = null;
this.__dir__ = 1;
this.__dropCount__ = 0;
this.__filtered__ = false;
this.__iteratees__ = null;
this.__takeCount__ = POSITIVE_INFINITY;
this.__views__ = null;
}
/**
* Creates a clone of the lazy wrapper object.
*
* @private
* @name clone
* @memberOf LazyWrapper
* @returns {Object} Returns the cloned `LazyWrapper` object.
*/
function lazyClone() {
var actions = this.__actions__,
iteratees = this.__iteratees__,
views = this.__views__,
result = new LazyWrapper(this.__wrapped__);
result.__actions__ = actions ? arrayCopy(actions) : null;
result.__dir__ = this.__dir__;
result.__dropCount__ = this.__dropCount__;
result.__filtered__ = this.__filtered__;
result.__iteratees__ = iteratees ? arrayCopy(iteratees) : null;
result.__takeCount__ = this.__takeCount__;
result.__views__ = views ? arrayCopy(views) : null;
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();
if (!isArray(array)) {
return baseWrapperValue(array, this.__actions__);
}
var dir = this.__dir__,
isRight = dir < 0,
view = getView(0, array.length, this.__views__),
start = view.start,
end = view.end,
length = end - start,
dropCount = this.__dropCount__,
takeCount = nativeMin(length, this.__takeCount__),
index = isRight ? end : start - 1,
iteratees = this.__iteratees__,
iterLength = iteratees ? iteratees.length : 0,
resIndex = 0,
result = [];
outer:
while (length-- && resIndex < takeCount) {
index += dir;
var iterIndex = -1,
value = array[index];
while (++iterIndex < iterLength) {
var data = iteratees[iterIndex],
iteratee = data.iteratee,
computed = iteratee(value, index, array),
type = data.type;
if (type == LAZY_MAP_FLAG) {
value = computed;
} else if (!computed) {
if (type == LAZY_FILTER_FLAG) {
continue outer;
} else {
break outer;
}
}
}
if (dropCount) {
dropCount--;
} else {
result[resIndex++] = value;
}
}
return result;
}
/*------------------------------------------------------------------------*/
/**
* Creates a cache object to store key/value pairs.
*
* @private
* @static
* @name Cache
* @memberOf _.memoize
*/
function MapCache() {
this.__data__ = {};
}
/**
* Removes `key` and its value from the cache.
*
* @private
* @name delete
* @memberOf _.memoize.Cache
* @param {string} key The key of the value to remove.
* @returns {boolean} Returns `true` if the entry was removed successfully, else `false`.
*/
function mapDelete(key) {
return this.has(key) && delete this.__data__[key];
}
/**
* Gets the cached value for `key`.
*
* @private
* @name get
* @memberOf _.memoize.Cache
* @param {string} key The key of the value to get.
* @returns {*} Returns the cached value.
*/
function mapGet(key) {
return key == '__proto__' ? undefined : this.__data__[key];
}
/**
* Checks if a cached value for `key` exists.
*
* @private
* @name has
* @memberOf _.memoize.Cache
* @param {string} key The key of the entry to check.
* @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
*/
function mapHas(key) {
return key != '__proto__' && hasOwnProperty.call(this.__data__, key);
}
/**
* Adds `value` to `key` of the cache.
*
* @private
* @name set
* @memberOf _.memoize.Cache
* @param {string} key The key of the value to cache.
* @param {*} value The value to cache.
* @returns {Object} Returns the cache object.
*/
function mapSet(key, value) {
if (key != '__proto__') {
this.__data__[key] = value;
}
return this;
}
/*------------------------------------------------------------------------*/
/**
*
* Creates a cache object to store unique values.
*
* @private
* @param {Array} [values] The values to cache.
*/
function SetCache(values) {
var length = values ? values.length : 0;
this.data = { 'hash': nativeCreate(null), 'set': new Set };
while (length--) {
this.push(values[length]);
}
}
/**
* Checks if `value` is in `cache` mimicking the return signature of
* `_.indexOf` by returning `0` if the value is found, else `-1`.
*
* @private
* @param {Object} cache The cache to search.
* @param {*} value The value to search for.
* @returns {number} Returns `0` if `value` is found, else `-1`.
*/
function cacheIndexOf(cache, value) {
var data = cache.data,
result = (typeof value == 'string' || isObject(value)) ? data.set.has(value) : data.hash[value];
return result ? 0 : -1;
}
/**
* Adds `value` to the cache.
*
* @private
* @name push
* @memberOf SetCache
* @param {*} value The value to cache.
*/
function cachePush(value) {
var data = this.data;
if (typeof value == 'string' || isObject(value)) {
data.set.add(value);
} else {
data.hash[value] = true;
}
}
/*------------------------------------------------------------------------*/
/**
* 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 arrayCopy(source, array) {
var index = -1,
length = source.length;
array || (array = Array(length));
while (++index < length) {
array[index] = source[index];
}
return array;
}
/**
* A specialized version of `_.forEach` for arrays without support for callback
* shorthands or `this` binding.
*
* @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.length;
while (++index < length) {
if (iteratee(array[index], index, array) === false) {
break;
}
}
return array;
}
/**
* A specialized version of `_.forEachRight` for arrays without support for
* callback shorthands or `this` binding.
*
* @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.length;
while (length--) {
if (iteratee(array[length], length, array) === false) {
break;
}
}
return array;
}
/**
* A specialized version of `_.every` for arrays without support for callback
* shorthands or `this` binding.
*
* @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.length;
while (++index < length) {
if (!predicate(array[index], index, array)) {
return false;
}
}
return true;
}
/**
* A specialized version of `_.filter` for arrays without support for callback
* shorthands or `this` binding.
*
* @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.length,
resIndex = -1,
result = [];
while (++index < length) {
var value = array[index];
if (predicate(value, index, array)) {
result[++resIndex] = value;
}
}
return result;
}
/**
* A specialized version of `_.map` for arrays without support for callback
* shorthands or `this` binding.
*
* @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.length,
result = Array(length);
while (++index < length) {
result[index] = iteratee(array[index], index, array);
}
return result;
}
/**
* A specialized version of `_.max` for arrays without support for iteratees.
*
* @private
* @param {Array} array The array to iterate over.
* @returns {*} Returns the maximum value.
*/
function arrayMax(array) {
var index = -1,
length = array.length,
result = NEGATIVE_INFINITY;
while (++index < length) {
var value = array[index];
if (value > result) {
result = value;
}
}
return result;
}
/**
* A specialized version of `_.min` for arrays without support for iteratees.
*
* @private
* @param {Array} array The array to iterate over.
* @returns {*} Returns the minimum value.
*/
function arrayMin(array) {
var index = -1,
length = array.length,
result = POSITIVE_INFINITY;
while (++index < length) {
var value = array[index];
if (value < result) {
result = value;
}
}
return result;
}
/**
* A specialized version of `_.reduce` for arrays without support for callback
* shorthands or `this` binding.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @param {*} [accumulator] The initial value.
* @param {boolean} [initFromArray] Specify using the first element of `array`
* as the initial value.
* @returns {*} Returns the accumulated value.
*/
function arrayReduce(array, iteratee, accumulator, initFromArray) {
var index = -1,
length = array.length;
if (initFromArray && 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
* callback shorthands or `this` binding.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @param {*} [accumulator] The initial value.
* @param {boolean} [initFromArray] Specify using the last element of `array`
* as the initial value.
* @returns {*} Returns the accumulated value.
*/
function arrayReduceRight(array, iteratee, accumulator, initFromArray) {
var length = array.length;
if (initFromArray && 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 callback
* shorthands or `this` binding.
*
* @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.length;
while (++index < length) {
if (predicate(array[index], index, array)) {
return true;
}
}
return false;
}
/**
* Used by `_.defaults` to customize its `_.assign` use.
*
* @private
* @param {*} objectValue The destination object property value.
* @param {*} sourceValue The source object property value.
* @returns {*} Returns the value to assign to the destination object.
*/
function assignDefaults(objectValue, sourceValue) {
return typeof objectValue == 'undefined' ? sourceValue : objectValue;
}
/**
* Used by `_.template` to customize its `_.assign` use.
*
* **Note:** This method is like `assignDefaults` except that it ignores
* inherited property values when checking if a property is `undefined`.
*
* @private
* @param {*} objectValue The destination object property value.
* @param {*} sourceValue The source object property value.
* @param {string} key The key associated with the object and source values.
* @param {Object} object The destination object.
* @returns {*} Returns the value to assign to the destination object.
*/
function assignOwnDefaults(objectValue, sourceValue, key, object) {
return (typeof objectValue == 'undefined' || !hasOwnProperty.call(object, key))
? sourceValue
: objectValue;
}
/**
* The base implementation of `_.assign` without support for argument juggling,
* multiple sources, and `this` binding `customizer` functions.
*
* @private
* @param {Object} object The destination object.
* @param {Object} source The source object.
* @param {Function} [customizer] The function to customize assigning values.
* @returns {Object} Returns the destination object.
*/
function baseAssign(object, source, customizer) {
var props = keys(source);
if (!customizer) {
return baseCopy(source, object, props);
}
var index = -1,
length = props.length;
while (++index < length) {
var key = props[index],
value = object[key],
result = customizer(value, source[key], key, object, source);
if ((result === result ? result !== value : value === value) ||
(typeof value == 'undefined' && !(key in object))) {
object[key] = result;
}
}
return object;
}
/**
* The base implementation of `_.at` without support for strings and individual
* key arguments.
*
* @private
* @param {Array|Object} collection The collection to iterate over.
* @param {number[]|string[]} [props] The property names or indexes of elements to pick.
* @returns {Array} Returns the new array of picked elements.
*/
function baseAt(collection, props) {
var index = -1,
length = collection.length,
isArr = isLength(length),
propsLength = props.length,
result = Array(propsLength);
while(++index < propsLength) {
var key = props[index];
if (isArr) {
key = parseFloat(key);
result[index] = isIndex(key, length) ? collection[key] : undefined;
} else {
result[index] = collection[key];
}
}
return result;
}
/**
* Copies the properties of `source` to `object`.
*
* @private
* @param {Object} source The object to copy properties from.
* @param {Object} [object={}] The object to copy properties to.
* @param {Array} props The property names to copy.
* @returns {Object} Returns `object`.
*/
function baseCopy(source, object, props) {
if (!props) {
props = object;
object = {};
}
var index = -1,
length = props.length;
while (++index < length) {
var key = props[index];
object[key] = source[key];
}
return object;
}
/**
* The base implementation of `_.bindAll` without support for individual
* method name arguments.
*
* @private
* @param {Object} object The object to bind and assign the bound methods to.
* @param {string[]} methodNames The object method names to bind.
* @returns {Object} Returns `object`.
*/
function baseBindAll(object, methodNames) {
var index = -1,
length = methodNames.length;
while (++index < length) {
var key = methodNames[index];
object[key] = createWrapper(object[key], BIND_FLAG, object);
}
return object;
}
/**
* The base implementation of `_.callback` which supports specifying the
* number of arguments to provide to `func`.
*
* @private
* @param {*} [func=_.identity] The value to convert to a callback.
* @param {*} [thisArg] The `this` binding of `func`.
* @param {number} [argCount] The number of arguments to provide to `func`.
* @returns {Function} Returns the callback.
*/
function baseCallback(func, thisArg, argCount) {
var type = typeof func;
if (type == 'function') {
return (typeof thisArg != 'undefined' && isBindable(func))
? bindCallback(func, thisArg, argCount)
: func;
}
if (func == null) {
return identity;
}
if (type == 'object') {
return baseMatches(func);
}
return typeof thisArg == 'undefined'
? baseProperty(func + '')
: baseMatchesProperty(func + '', thisArg);
}
/**
* The base implementation of `_.clone` without support for argument juggling
* and `this` binding `customizer` functions.
*
* @private
* @param {*} value The value to clone.
* @param {boolean} [isDeep] Specify a deep clone.
* @param {Function} [customizer] The function to customize cloning values.
* @param {string} [key] The key of `value`.
* @param {Object} [object] The object `value` belongs to.
* @param {Array} [stackA=[]] Tracks traversed source objects.
* @param {Array} [stackB=[]] Associates clones with source counterparts.
* @returns {*} Returns the cloned value.
*/
function baseClone(value, isDeep, customizer, key, object, stackA, stackB) {
var result;
if (customizer) {
result = object ? customizer(value, key, object) : customizer(value);
}
if (typeof result != 'undefined') {
return result;
}
if (!isObject(value)) {
return value;
}
var isArr = isArray(value);
if (isArr) {
result = initCloneArray(value);
if (!isDeep) {
return arrayCopy(value, result);
}
} else {
var tag = objToString.call(value),
isFunc = tag == funcTag;
if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
result = initCloneObject(isFunc ? {} : value);
if (!isDeep) {
return baseCopy(value, result, keys(value));
}
} else {
return cloneableTags[tag]
? initCloneByTag(value, tag, isDeep)
: (object ? value : {});
}
}
// Check for circular references and return corresponding clone.
stackA || (stackA = []);
stackB || (stackB = []);
var length = stackA.length;
while (length--) {
if (stackA[length] == value) {
return stackB[length];
}
}
// Add the source value to the stack of traversed objects and associate it with its clone.
stackA.push(value);
stackB.push(result);
// Recursively populate clone (susceptible to call stack limits).
(isArr ? arrayEach : baseForOwn)(value, function(subValue, key) {
result[key] = baseClone(subValue, isDeep, customizer, key, value, stackA, stackB);
});
return result;
}
/**
* 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.
*/
var baseCreate = (function() {
function Object() {}
return function(prototype) {
if (isObject(prototype)) {
Object.prototype = prototype;
var result = new Object;
Object.prototype = null;
}
return result || context.Object();
};
}());
/**
* The base implementation of `_.delay` and `_.defer` which accepts an index
* of where to slice the arguments to provide to `func`.
*
* @private
* @param {Function} func The function to delay.
* @param {number} wait The number of milliseconds to delay invocation.
* @param {Object} args The `arguments` object to slice and provide to `func`.
* @returns {number} Returns the timer id.
*/
function baseDelay(func, wait, args, fromIndex) {
if (typeof func != 'function') {
throw new TypeError(FUNC_ERROR_TEXT);
}
return setTimeout(function() { func.apply(undefined, baseSlice(args, fromIndex)); }, wait);
}
/**
* The base implementation of `_.difference` which accepts a single array
* of values to exclude.
*
* @private
* @param {Array} array The array to inspect.
* @param {Array} values The values to exclude.
* @returns {Array} Returns the new array of filtered values.
*/
function baseDifference(array, values) {
var length = array ? array.length : 0,
result = [];
if (!length) {
return result;
}
var index = -1,
indexOf = getIndexOf(),
isCommon = indexOf == baseIndexOf,
cache = isCommon && values.length >= 200 && createCache(values),
valuesLength = values.length;
if (cache) {
indexOf = cacheIndexOf;
isCommon = false;
values = cache;
}
outer:
while (++index < length) {
var value = array[index];
if (isCommon && value === value) {
var valuesIndex = valuesLength;
while (valuesIndex--) {
if (values[valuesIndex] === value) {
continue outer;
}
}
result.push(value);
}
else if (indexOf(values, value) < 0) {
result.push(value);
}
}
return result;
}
/**
* The base implementation of `_.forEach` without support for callback
* shorthands and `this` binding.
*
* @private
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @returns {Array|Object|string} Returns `collection`.
*/
function baseEach(collection, iteratee) {
var length = collection ? collection.length : 0;
if (!isLength(length)) {
return baseForOwn(collection, iteratee);
}
var index = -1,
iterable = toObject(collection);
while (++index < length) {
if (iteratee(iterable[index], index, iterable) === false) {
break;
}
}
return collection;
}
/**
* The base implementation of `_.forEachRight` without support for callback
* shorthands and `this` binding.
*
* @private
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @returns {Array|Object|string} Returns `collection`.
*/
function baseEachRight(collection, iteratee) {
var length = collection ? collection.length : 0;
if (!isLength(length)) {
return baseForOwnRight(collection, iteratee);
}
var iterable = toObject(collection);
while (length--) {
if (iteratee(iterable[length], length, iterable) === false) {
break;
}
}
return collection;
}
/**
* The base implementation of `_.every` without support for callback
* shorthands or `this` binding.
*
* @private
* @param {Array|Object|string} 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 `_.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 = start == null ? 0 : (+start || 0);
if (start < 0) {
start = -start > length ? 0 : (length + start);
}
end = (typeof end == 'undefined' || end > length) ? length : (+end || 0);
if (end < 0) {
end += length;
}
length = start > end ? 0 : end >>> 0;
start >>>= 0;
while (start < length) {
array[start++] = value;
}
return array;
}
/**
* The base implementation of `_.filter` without support for callback
* shorthands or `this` binding.
*
* @private
* @param {Array|Object|string} 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 `_.find`, `_.findLast`, `_.findKey`, and `_.findLastKey`,
* without support for callback shorthands and `this` binding, which iterates
* over `collection` using the provided `eachFunc`.
*
* @private
* @param {Array|Object|string} collection The collection to search.
* @param {Function} predicate The function invoked per iteration.
* @param {Function} eachFunc The function to iterate over `collection`.
* @param {boolean} [retKey] Specify returning the key of the found element
* instead of the element itself.
* @returns {*} Returns the found element or its key, else `undefined`.
*/
function baseFind(collection, predicate, eachFunc, retKey) {
var result;
eachFunc(collection, function(value, key, collection) {
if (predicate(value, key, collection)) {
result = retKey ? key : value;
return false;
}
});
return result;
}
/**
* The base implementation of `_.flatten` with added support for restricting
* flattening and specifying the start index.
*
* @private
* @param {Array} array The array to flatten.
* @param {boolean} [isDeep] Specify a deep flatten.
* @param {boolean} [isStrict] Restrict flattening to arrays and `arguments` objects.
* @param {number} [fromIndex=0] The index to start from.
* @returns {Array} Returns the new flattened array.
*/
function baseFlatten(array, isDeep, isStrict, fromIndex) {
var index = (fromIndex || 0) - 1,
length = array.length,
resIndex = -1,
result = [];
while (++index < length) {
var value = array[index];
if (isObjectLike(value) && isLength(value.length) && (isArray(value) || isArguments(value))) {
if (isDeep) {
// Recursively flatten arrays (susceptible to call stack limits).
value = baseFlatten(value, isDeep, isStrict);
}
var valIndex = -1,
valLength = value.length;
result.length += valLength;
while (++valIndex < valLength) {
result[++resIndex] = value[valIndex];
}
} else if (!isStrict) {
result[++resIndex] = value;
}
}
return result;
}
/**
* The base implementation of `baseForIn` and `baseForOwn` which iterates
* over `object` properties returned by `keysFunc` invoking `iteratee` for
* each property. Iterator 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`.
*/
function baseFor(object, iteratee, keysFunc) {
var index = -1,
iterable = toObject(object),
props = keysFunc(object),
length = props.length;
while (++index < length) {
var key = props[index];
if (iteratee(iterable[key], key, iterable) === false) {
break;
}
}
return object;
}
/**
* 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`.
*/
function baseForRight(object, iteratee, keysFunc) {
var iterable = toObject(object),
props = keysFunc(object),
length = props.length;
while (length--) {
var key = props[length];
if (iteratee(iterable[key], key, iterable) === false) {
break;
}
}
return object;
}
/**
* The base implementation of `_.forIn` without support for callback
* shorthands and `this` binding.
*
* @private
* @param {Object} object The object to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @returns {Object} Returns `object`.
*/
function baseForIn(object, iteratee) {
return baseFor(object, iteratee, keysIn);
}
/**
* The base implementation of `_.forOwn` without support for callback
* shorthands and `this` binding.
*
* @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 baseFor(object, iteratee, keys);
}
/**
* The base implementation of `_.forOwnRight` without support for callback
* shorthands and `this` binding.
*
* @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 baseForRight(object, iteratee, keys);
}
/**
* The base implementation of `_.functions` which creates an array of
* `object` function property names filtered from those provided.
*
* @private
* @param {Object} object The object to inspect.
* @param {Array} props The property names to filter.
* @returns {Array} Returns the new array of filtered property names.
*/
function baseFunctions(object, props) {
var index = -1,
length = props.length,
resIndex = -1,
result = [];
while (++index < length) {
var key = props[index];
if (isFunction(object[key])) {
result[++resIndex] = key;
}
}
return result;
}
/**
* The base implementation of `_.invoke` which requires additional arguments
* to be provided as an array of arguments rather than individually.
*
* @private
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|string} methodName The name of the method to invoke or
* the function invoked per iteration.
* @param {Array} [args] The arguments to invoke the method with.
* @returns {Array} Returns the array of results.
*/
function baseInvoke(collection, methodName, args) {
var index = -1,
isFunc = typeof methodName == 'function',
length = collection ? collection.length : 0,
result = isLength(length) ? Array(length) : [];
baseEach(collection, function(value) {
var func = isFunc ? methodName : (value != null && value[methodName]);
result[++index] = func ? func.apply(value, args) : undefined;
});
return result;
}
/**
* The base implementation of `_.isEqual` without support for `this` binding
* `customizer` functions.
*
* @private
* @param {*} value The value to compare.
* @param {*} other The other value to compare.
* @param {Function} [customizer] The function to customize comparing values.
* @param {boolean} [isWhere] Specify performing partial comparisons.
* @param {Array} [stackA] Tracks traversed `value` objects.
* @param {Array} [stackB] Tracks traversed `other` objects.
* @returns {boolean} Returns `true` if the values are equivalent, else `false`.
*/
function baseIsEqual(value, other, customizer, isWhere, stackA, stackB) {
// Exit early for identical values.
if (value === other) {
// Treat `+0` vs. `-0` as not equal.
return value !== 0 || (1 / value == 1 / other);
}
var valType = typeof value,
othType = typeof other;
// Exit early for unlike primitive values.
if ((valType != 'function' && valType != 'object' && othType != 'function' && othType != 'object') ||
value == null || other == null) {
// Return `false` unless both values are `NaN`.
return value !== value && other !== other;
}
return baseIsEqualDeep(value, other, baseIsEqual, customizer, isWhere, stackA, stackB);
}
/**
* 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 comparing objects.
* @param {boolean} [isWhere] Specify performing partial comparisons.
* @param {Array} [stackA=[]] Tracks traversed `value` objects.
* @param {Array} [stackB=[]] Tracks traversed `other` objects.
* @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
*/
function baseIsEqualDeep(object, other, equalFunc, customizer, isWhere, stackA, stackB) {
var objIsArr = isArray(object),
othIsArr = isArray(other),
objTag = arrayTag,
othTag = arrayTag;
if (!objIsArr) {
objTag = objToString.call(object);
if (objTag == argsTag) {
objTag = objectTag;
} else if (objTag != objectTag) {
objIsArr = isTypedArray(object);
}
}
if (!othIsArr) {
othTag = objToString.call(other);
if (othTag == argsTag) {
othTag = objectTag;
} else if (othTag != objectTag) {
othIsArr = isTypedArray(other);
}
}
var objIsObj = objTag == objectTag,
othIsObj = othTag == objectTag,
isSameTag = objTag == othTag;
if (isSameTag && !(objIsArr || objIsObj)) {
return equalByTag(object, other, objTag);
}
var valWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
othWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');
if (valWrapped || othWrapped) {
return equalFunc(valWrapped ? object.value() : object, othWrapped ? other.value() : other, customizer, isWhere, stackA, stackB);
}
if (!isSameTag) {
return false;
}
// Assume cyclic values are equal.
// For more information on detecting circular references see https://es5.github.io/#JO.
stackA || (stackA = []);
stackB || (stackB = []);
var length = stackA.length;
while (length--) {
if (stackA[length] == object) {
return stackB[length] == other;
}
}
// Add `object` and `other` to the stack of traversed objects.
stackA.push(object);
stackB.push(other);
var result = (objIsArr ? equalArrays : equalObjects)(object, other, equalFunc, customizer, isWhere, stackA, stackB);
stackA.pop();
stackB.pop();
return result;
}
/**
* The base implementation of `_.isMatch` without support for callback
* shorthands or `this` binding.
*
* @private
* @param {Object} object The object to inspect.
* @param {Array} props The source property names to match.
* @param {Array} values The source values to match.
* @param {Array} strictCompareFlags Strict comparison flags for source values.
* @param {Function} [customizer] The function to customize comparing objects.
* @returns {boolean} Returns `true` if `object` is a match, else `false`.
*/
function baseIsMatch(object, props, values, strictCompareFlags, customizer) {
var length = props.length;
if (object == null) {
return !length;
}
var index = -1,
noCustomizer = !customizer;
while (++index < length) {
if ((noCustomizer && strictCompareFlags[index])
? values[index] !== object[props[index]]
: !hasOwnProperty.call(object, props[index])
) {
return false;
}
}
index = -1;
while (++index < length) {
var key = props[index];
if (noCustomizer && strictCompareFlags[index]) {
var result = hasOwnProperty.call(object, key);
} else {
var objValue = object[key],
srcValue = values[index];
result = customizer ? customizer(objValue, srcValue, key) : undefined;
if (typeof result == 'undefined') {
result = baseIsEqual(srcValue, objValue, customizer, true);
}
}
if (!result) {
return false;
}
}
return true;
}
/**
* The base implementation of `_.map` without support for callback shorthands
* or `this` binding.
*
* @private
* @param {Array|Object|string} 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 result = [];
baseEach(collection, function(value, key, collection) {
result.push(iteratee(value, key, collection));
});
return result;
}
/**
* The base implementation of `_.matches` which does not clone `source`.
*
* @private
* @param {Object} source The object of property values to match.
* @returns {Function} Returns the new function.
*/
function baseMatches(source) {
var props = keys(source),
length = props.length;
if (length == 1) {
var key = props[0],
value = source[key];
if (isStrictComparable(value)) {
return function(object) {
return object != null && value === object[key] && hasOwnProperty.call(object, key);
};
}
}
var values = Array(length),
strictCompareFlags = Array(length);
while (length--) {
value = source[props[length]];
values[length] = value;
strictCompareFlags[length] = isStrictComparable(value);
}
return function(object) {
return baseIsMatch(object, props, values, strictCompareFlags);
};
}
/**
* The base implementation of `_.matchesProperty` which does not coerce `key`
* to a string.
*
* @private
* @param {string} key The key of the property to get.
* @param {*} value The value to compare.
* @returns {Function} Returns the new function.
*/
function baseMatchesProperty(key, value) {
if (isStrictComparable(value)) {
return function(object) {
return object != null && object[key] === value;
};
}
return function(object) {
return object != null && baseIsEqual(value, object[key], null, true);
};
}
/**
* The base implementation of `_.merge` without support for argument juggling,
* multiple sources, and `this` binding `customizer` functions.
*
* @private
* @param {Object} object The destination object.
* @param {Object} source The source object.
* @param {Function} [customizer] The function to customize merging properties.
* @param {Array} [stackA=[]] Tracks traversed source objects.
* @param {Array} [stackB=[]] Associates values with source counterparts.
* @returns {Object} Returns the destination object.
*/
function baseMerge(object, source, customizer, stackA, stackB) {
var isSrcArr = isLength(source.length) && (isArray(source) || isTypedArray(source));
(isSrcArr ? arrayEach : baseForOwn)(source, function(srcValue, key, source) {
if (isObjectLike(srcValue)) {
stackA || (stackA = []);
stackB || (stackB = []);
return baseMergeDeep(object, source, key, baseMerge, customizer, stackA, stackB);
}
var value = object[key],
result = customizer ? customizer(value, srcValue, key, object, source) : undefined,
isCommon = typeof result == 'undefined';
if (isCommon) {
result = srcValue;
}
if ((isSrcArr || typeof result != 'undefined') &&
(isCommon || (result === result ? result !== value : value === value))) {
object[key] = result;
}
});
return object;
}
/**
* 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 {Function} mergeFunc The function to merge values.
* @param {Function} [customizer] The function to customize merging properties.
* @param {Array} [stackA=[]] Tracks traversed source objects.
* @param {Array} [stackB=[]] Associates values with source counterparts.
* @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
*/
function baseMergeDeep(object, source, key, mergeFunc, customizer, stackA, stackB) {
var length = stackA.length,
srcValue = source[key];
while (length--) {
if (stackA[length] == srcValue) {
object[key] = stackB[length];
return;
}
}
var value = object[key],
result = customizer ? customizer(value, srcValue, key, object, source) : undefined,
isCommon = typeof result == 'undefined';
if (isCommon) {
result = srcValue;
if (isLength(srcValue.length) && (isArray(srcValue) || isTypedArray(srcValue))) {
result = isArray(value)
? value
: (value ? arrayCopy(value) : []);
}
else if (isPlainObject(srcValue) || isArguments(srcValue)) {
result = isArguments(value)
? toPlainObject(value)
: (isPlainObject(value) ? value : {});
}
else {
isCommon = false;
}
}
// Add the source value to the stack of traversed objects and associate
// it with its merged value.
stackA.push(srcValue);
stackB.push(result);
if (isCommon) {
// Recursively merge objects and arrays (susceptible to call stack limits).
object[key] = mergeFunc(result, srcValue, customizer, stackA, stackB);
} else if (result === result ? result !== value : value === value) {
object[key] = result;
}
}
/**
* The base implementation of `_.property` which does not coerce `key` to a string.
*
* @private
* @param {string} key The key of the property to get.
* @returns {Function} Returns the new function.
*/
function baseProperty(key) {
return function(object) {
return object == null ? undefined : object[key];
};
}
/**
* The base implementation of `_.pullAt` without support for individual
* index arguments.
*
* @private
* @param {Array} array The array to modify.
* @param {number[]} indexes The indexes of elements to remove.
* @returns {Array} Returns the new array of removed elements.
*/
function basePullAt(array, indexes) {
var length = indexes.length,
result = baseAt(array, indexes);
indexes.sort(baseCompareAscending);
while (length--) {
var index = parseFloat(indexes[length]);
if (index != previous && isIndex(index)) {
var previous = index;
splice.call(array, index, 1);
}
}
return result;
}
/**
* The base implementation of `_.random` without support for argument juggling
* and returning floating-point numbers.
*
* @private
* @param {number} min The minimum possible value.
* @param {number} max The maximum possible value.
* @returns {number} Returns the random number.
*/
function baseRandom(min, max) {
return min + floor(nativeRandom() * (max - min + 1));
}
/**
* The base implementation of `_.reduce` and `_.reduceRight` without support
* for callback shorthands or `this` binding, which iterates over `collection`
* using the provided `eachFunc`.
*
* @private
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @param {*} accumulator The initial value.
* @param {boolean} initFromCollection 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, initFromCollection, eachFunc) {
eachFunc(collection, function(value, index, collection) {
accumulator = initFromCollection
? (initFromCollection = false, value)
: iteratee(accumulator, value, index, collection);
});
return accumulator;
}
/**
* 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;
start = start == null ? 0 : (+start || 0);
if (start < 0) {
start = -start > length ? 0 : (length + start);
}
end = (typeof end == 'undefined' || end > length) ? length : (+end || 0);
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 callback shorthands
* or `this` binding.
*
* @private
* @param {Array|Object|string} 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 `_.uniq` without support for callback shorthands
* and `this` binding.
*
* @private
* @param {Array} array The array to inspect.
* @param {Function} [iteratee] The function invoked per iteration.
* @returns {Array} Returns the new duplicate-value-free array.
*/
function baseUniq(array, iteratee) {
var index = -1,
indexOf = getIndexOf(),
length = array.length,
isCommon = indexOf == baseIndexOf,
isLarge = isCommon && length >= 200,
seen = isLarge && createCache(),
result = [];
if (seen) {
indexOf = cacheIndexOf;
isCommon = false;
} else {
isLarge = false;
seen = iteratee ? [] : result;
}
outer:
while (++index < length) {
var value = array[index],
computed = iteratee ? iteratee(value, index, array) : value;
if (isCommon && value === value) {
var seenIndex = seen.length;
while (seenIndex--) {
if (seen[seenIndex] === computed) {
continue outer;
}
}
if (iteratee) {
seen.push(computed);
}
result.push(value);
}
else if (indexOf(seen, computed) < 0) {
if (iteratee || isLarge) {
seen.push(computed);
}
result.push(value);
}
}
return result;
}
/**
* The base implementation of `_.values` and `_.valuesIn` which creates an
* array of `object` property values corresponding to the property names
* returned by `keysFunc`.
*
* @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) {
var index = -1,
length = props.length,
result = Array(length);
while (++index < length) {
result[index] = object[props[index]];
}
return result;
}
/**
* 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 peform to resolve the unwrapped value.
* @returns {*} Returns the resolved unwrapped value.
*/
function baseWrapperValue(value, actions) {
var result = value;
if (result instanceof LazyWrapper) {
result = result.value();
}
var index = -1,
length = actions.length;
while (++index < length) {
var args = [result],
action = actions[index];
push.apply(args, action.args);
result = action.func.apply(action.thisArg, args);
}
return result;
}
/**
* 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, instead
* of the lowest, index at which a value should be inserted into `array`.
* @returns {number} Returns the index at which `value` should be inserted
* into `array`.
*/
function binaryIndex(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 (retHighest ? (computed <= value) : (computed < value)) {
low = mid + 1;
} else {
high = mid;
}
}
return high;
}
return binaryIndexBy(array, value, identity, retHighest);
}
/**
* This function is like `binaryIndex` except that it 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 function invoked per iteration.
* @param {boolean} [retHighest] Specify returning the highest, instead
* of the lowest, index at which a value should be inserted into `array`.
* @returns {number} Returns the index at which `value` should be inserted
* into `array`.
*/
function binaryIndexBy(array, value, iteratee, retHighest) {
value = iteratee(value);
var low = 0,
high = array ? array.length : 0,
valIsNaN = value !== value,
valIsUndef = typeof value == 'undefined';
while (low < high) {
var mid = floor((low + high) / 2),
computed = iteratee(array[mid]),
isReflexive = computed === computed;
if (valIsNaN) {
var setLow = isReflexive || retHighest;
} else if (valIsUndef) {
setLow = isReflexive && (retHighest || typeof computed != 'undefined');
} else {
setLow = retHighest ? (computed <= value) : (computed < value);
}
if (setLow) {
low = mid + 1;
} else {
high = mid;
}
}
return nativeMin(high, MAX_ARRAY_INDEX);
}
/**
* A specialized version of `baseCallback` which only supports `this` binding
* and specifying the number of arguments to provide to `func`.
*
* @private
* @param {Function} func The function to bind.
* @param {*} thisArg The `this` binding of `func`.
* @param {number} [argCount] The number of arguments to provide to `func`.
* @returns {Function} Returns the callback.
*/
function bindCallback(func, thisArg, argCount) {
if (typeof func != 'function') {
return identity;
}
if (typeof thisArg == 'undefined') {
return func;
}
switch (argCount) {
case 1: return function(value) {
return func.call(thisArg, value);
};
case 3: return function(value, index, collection) {
return func.call(thisArg, value, index, collection);
};
case 4: return function(accumulator, value, index, collection) {
return func.call(thisArg, accumulator, value, index, collection);
};
case 5: return function(value, other, key, object, source) {
return func.call(thisArg, value, other, key, object, source);
};
}
return function() {
return func.apply(thisArg, arguments);
};
}
/**
* Creates a clone of the given array buffer.
*
* @private
* @param {ArrayBuffer} buffer The array buffer to clone.
* @returns {ArrayBuffer} Returns the cloned array buffer.
*/
function bufferClone(buffer) {
return bufferSlice.call(buffer, 0);
}
if (!bufferSlice) {
// PhantomJS has `ArrayBuffer` and `Uint8Array` but not `Float64Array`.
bufferClone = !(ArrayBuffer && Uint8Array) ? constant(null) : function(buffer) {
var byteLength = buffer.byteLength,
floatLength = Float64Array ? floor(byteLength / FLOAT64_BYTES_PER_ELEMENT) : 0,
offset = floatLength * FLOAT64_BYTES_PER_ELEMENT,
result = new ArrayBuffer(byteLength);
if (floatLength) {
var view = new Float64Array(result, 0, floatLength);
view.set(new Float64Array(buffer, 0, floatLength));
}
if (byteLength != offset) {
view = new Uint8Array(result, offset);
view.set(new Uint8Array(buffer, offset));
}
return result;
};
}
/**
* Creates an array that is the composition of partially applied arguments,
* placeholders, and provided arguments into a single array of arguments.
*
* @private
* @param {Array|Object} args The provided arguments.
* @param {Array} partials The arguments to prepend to those provided.
* @param {Array} holders The `partials` placeholder indexes.
* @returns {Array} Returns the new array of composed arguments.
*/
function composeArgs(args, partials, holders) {
var holdersLength = holders.length,
argsIndex = -1,
argsLength = nativeMax(args.length - holdersLength, 0),
leftIndex = -1,
leftLength = partials.length,
result = Array(argsLength + leftLength);
while (++leftIndex < leftLength) {
result[leftIndex] = partials[leftIndex];
}
while (++argsIndex < holdersLength) {
result[holders[argsIndex]] = args[argsIndex];
}
while (argsLength--) {
result[leftIndex++] = args[argsIndex++];
}
return result;
}
/**
* This function is like `composeArgs` except that the arguments composition
* is tailored for `_.partialRight`.
*
* @private
* @param {Array|Object} args The provided arguments.
* @param {Array} partials The arguments to append to those provided.
* @param {Array} holders The `partials` placeholder indexes.
* @returns {Array} Returns the new array of composed arguments.
*/
function composeArgsRight(args, partials, holders) {
var holdersIndex = -1,
holdersLength = holders.length,
argsIndex = -1,
argsLength = nativeMax(args.length - holdersLength, 0),
rightIndex = -1,
rightLength = partials.length,
result = Array(argsLength + rightLength);
while (++argsIndex < argsLength) {
result[argsIndex] = args[argsIndex];
}
var pad = argsIndex;
while (++rightIndex < rightLength) {
result[pad + rightIndex] = partials[rightIndex];
}
while (++holdersIndex < holdersLength) {
result[pad + holders[holdersIndex]] = args[argsIndex++];
}
return result;
}
/**
* Creates a function that aggregates a collection, creating an accumulator
* object composed from the results of running each element in the collection
* through an iteratee.
*
* @private
* @param {Function} setter The function to set keys and values of the accumulator object.
* @param {Function} [initializer] The function to initialize the accumulator object.
* @returns {Function} Returns the new aggregator function.
*/
function createAggregator(setter, initializer) {
return function(collection, iteratee, thisArg) {
var result = initializer ? initializer() : {};
iteratee = getCallback(iteratee, thisArg, 3);
if (isArray(collection)) {
var index = -1,
length = collection.length;
while (++index < length) {
var value = collection[index];
setter(result, value, iteratee(value, index, collection), collection);
}
} else {
baseEach(collection, function(value, key, collection) {
setter(result, value, iteratee(value, key, collection), collection);
});
}
return result;
};
}
/**
* Creates a function that assigns properties of source object(s) to a given
* destination object.
*
* @private
* @param {Function} assigner The function to assign values.
* @returns {Function} Returns the new assigner function.
*/
function createAssigner(assigner) {
return function() {
var length = arguments.length,
object = arguments[0];
if (length < 2 || object == null) {
return object;
}
if (length > 3 && isIterateeCall(arguments[1], arguments[2], arguments[3])) {
length = 2;
}
// Juggle arguments.
if (length > 3 && typeof arguments[length - 2] == 'function') {
var customizer = bindCallback(arguments[--length - 1], arguments[length--], 5);
} else if (length > 2 && typeof arguments[length - 1] == 'function') {
customizer = arguments[--length];
}
var index = 0;
while (++index < length) {
var source = arguments[index];
if (source) {
assigner(object, source, customizer);
}
}
return object;
};
}
/**
* Creates a function that wraps `func` and invokes it with the `this`
* binding of `thisArg`.
*
* @private
* @param {Function} func The function to bind.
* @param {*} [thisArg] The `this` binding of `func`.
* @returns {Function} Returns the new bound function.
*/
function createBindWrapper(func, thisArg) {
var Ctor = createCtorWrapper(func);
function wrapper() {
return (this instanceof wrapper ? Ctor : func).apply(thisArg, arguments);
}
return wrapper;
}
/**
* Creates a `Set` cache object to optimize linear searches of large arrays.
*
* @private
* @param {Array} [values] The values to cache.
* @returns {null|Object} Returns the new cache object if `Set` is supported, else `null`.
*/
var createCache = !(nativeCreate && Set) ? constant(null) : function(values) {
return new SetCache(values);
};
/**
* Creates a function that produces compound words out of the words in a
* given string.
*
* @private
* @param {Function} callback The function to combine each word.
* @returns {Function} Returns the new compounder function.
*/
function createCompounder(callback) {
return function(string) {
var index = -1,
array = words(deburr(string)),
length = array.length,
result = '';
while (++index < length) {
result = callback(result, array[index], index);
}
return result;
};
}
/**
* 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() {
var thisBinding = baseCreate(Ctor.prototype),
result = Ctor.apply(thisBinding, arguments);
// 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 gets the extremum value of a collection.
*
* @private
* @param {Function} arrayFunc The function to get the extremum value from an array.
* @param {boolean} [isMin] Specify returning the minimum, instead of the maximum,
* extremum value.
* @returns {Function} Returns the new extremum function.
*/
function createExtremum(arrayFunc, isMin) {
return function(collection, iteratee, thisArg) {
if (thisArg && isIterateeCall(collection, iteratee, thisArg)) {
iteratee = null;
}
var func = getCallback(),
noIteratee = iteratee == null;
if (!(func === baseCallback && noIteratee)) {
noIteratee = false;
iteratee = func(iteratee, thisArg, 3);
}
if (noIteratee) {
var isArr = isArray(collection);
if (!isArr && isString(collection)) {
iteratee = charAtCallback;
} else {
return arrayFunc(isArr ? collection : toIterable(collection));
}
}
return extremumBy(collection, iteratee, isMin);
};
}
/**
* Creates a function that wraps `func` and invokes it with optional `this`
* binding of, partial application, and currying.
*
* @private
* @param {Function|string} func The function or method name to reference.
* @param {number} bitmask The bitmask of 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,
isCurry = bitmask & CURRY_FLAG,
isCurryBound = bitmask & CURRY_BOUND_FLAG,
isCurryRight = bitmask & CURRY_RIGHT_FLAG;
var Ctor = !isBindKey && createCtorWrapper(func),
key = func;
function wrapper() {
// Avoid `arguments` object use disqualifying optimizations by
// converting it to an array before providing it to other functions.
var length = arguments.length,
index = length,
args = Array(length);
while (index--) {
args[index] = arguments[index];
}
if (partials) {
args = composeArgs(args, partials, holders);
}
if (partialsRight) {
args = composeArgsRight(args, partialsRight, holdersRight);
}
if (isCurry || isCurryRight) {
var placeholder = wrapper.placeholder,
argsHolders = replaceHolders(args, placeholder);
length -= argsHolders.length;
if (length < arity) {
var newArgPos = argPos ? arrayCopy(argPos) : null,
newArity = nativeMax(arity - length, 0),
newsHolders = isCurry ? argsHolders : null,
newHoldersRight = isCurry ? null : argsHolders,
newPartials = isCurry ? args : null,
newPartialsRight = isCurry ? null : args;
bitmask |= (isCurry ? PARTIAL_FLAG : PARTIAL_RIGHT_FLAG);
bitmask &= ~(isCurry ? PARTIAL_RIGHT_FLAG : PARTIAL_FLAG);
if (!isCurryBound) {
bitmask &= ~(BIND_FLAG | BIND_KEY_FLAG);
}
var result = createHybridWrapper(func, bitmask, thisArg, newPartials, newsHolders, newPartialsRight, newHoldersRight, newArgPos, ary, newArity);
result.placeholder = placeholder;
return result;
}
}
var thisBinding = isBind ? thisArg : this;
if (isBindKey) {
func = thisBinding[key];
}
if (argPos) {
args = reorder(args, argPos);
}
if (isAry && ary < args.length) {
args.length = ary;
}
return (this instanceof wrapper ? (Ctor || createCtorWrapper(func)) : func).apply(thisBinding, args);
}
return wrapper;
}
/**
* Creates the pad required for `string` based on the given padding length.
* The `chars` string may be truncated if the number of padding characters
* exceeds the padding length.
*
* @private
* @param {string} string The string to create padding for.
* @param {number} [length=0] The padding length.
* @param {string} [chars=' '] The string used as padding.
* @returns {string} Returns the pad for `string`.
*/
function createPad(string, length, chars) {
var strLength = string.length;
length = +length;
if (strLength >= length || !nativeIsFinite(length)) {
return '';
}
var padLength = length - strLength;
chars = chars == null ? ' ' : (chars + '');
return repeat(chars, ceil(padLength / chars.length)).slice(0, padLength);
}
/**
* Creates a function that wraps `func` and invokes it with the optional `this`
* binding of `thisArg` and the `partials` prepended to those provided to
* the wrapper.
*
* @private
* @param {Function} func The function to partially apply arguments to.
* @param {number} bitmask The bitmask of 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 bound function.
*/
function createPartialWrapper(func, bitmask, thisArg, partials) {
var isBind = bitmask & BIND_FLAG,
Ctor = createCtorWrapper(func);
function wrapper() {
// Avoid `arguments` object use disqualifying optimizations by
// converting it to an array before providing it `func`.
var argsIndex = -1,
argsLength = arguments.length,
leftIndex = -1,
leftLength = partials.length,
args = Array(argsLength + leftLength);
while (++leftIndex < leftLength) {
args[leftIndex] = partials[leftIndex];
}
while (argsLength--) {
args[leftIndex++] = arguments[++argsIndex];
}
return (this instanceof wrapper ? Ctor : func).apply(isBind ? thisArg : this, args);
}
return wrapper;
}
/**
* 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 reference.
* @param {number} bitmask The bitmask of 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`
* @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 = null;
}
length -= (holders ? holders.length : 0);
if (bitmask & PARTIAL_RIGHT_FLAG) {
var partialsRight = partials,
holdersRight = holders;
partials = holders = null;
}
var data = !isBindKey && getData(func),
newData = [func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity];
if (data && data !== true) {
mergeData(newData, data);
bitmask = newData[1];
arity = newData[9];
}
newData[9] = arity == null
? (isBindKey ? 0 : func.length)
: (nativeMax(arity - length, 0) || 0);
if (bitmask == BIND_FLAG) {
var result = createBindWrapper(newData[0], newData[2]);
} else if ((bitmask == PARTIAL_FLAG || bitmask == (BIND_FLAG | PARTIAL_FLAG)) && !newData[4].length) {
result = createPartialWrapper.apply(undefined, newData);
} 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 comparing arrays.
* @param {boolean} [isWhere] Specify performing partial comparisons.
* @param {Array} [stackA] Tracks traversed `value` objects.
* @param {Array} [stackB] Tracks traversed `other` objects.
* @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
*/
function equalArrays(array, other, equalFunc, customizer, isWhere, stackA, stackB) {
var index = -1,
arrLength = array.length,
othLength = other.length,
result = true;
if (arrLength != othLength && !(isWhere && othLength > arrLength)) {
return false;
}
// Deep compare the contents, ignoring non-numeric properties.
while (result && ++index < arrLength) {
var arrValue = array[index],
othValue = other[index];
result = undefined;
if (customizer) {
result = isWhere
? customizer(othValue, arrValue, index)
: customizer(arrValue, othValue, index);
}
if (typeof result == 'undefined') {
// Recursively compare arrays (susceptible to call stack limits).
if (isWhere) {
var othIndex = othLength;
while (othIndex--) {
othValue = other[othIndex];
result = (arrValue && arrValue === othValue) || equalFunc(arrValue, othValue, customizer, isWhere, stackA, stackB);
if (result) {
break;
}
}
} else {
result = (arrValue && arrValue === othValue) || equalFunc(arrValue, othValue, customizer, isWhere, stackA, stackB);
}
}
}
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} value The object to compare.
* @param {Object} other The other object to compare.
* @param {string} tag The `toStringTag` of the objects to compare.
* @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
*/
function equalByTag(object, other, tag) {
switch (tag) {
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
// But, treat `-0` vs. `+0` as not equal.
: (object == 0 ? ((1 / object) == (1 / other)) : object == +other);
case regexpTag:
case stringTag:
// Coerce regexes to strings and treat strings primitives and string
// objects as equal. See https://es5.github.io/#x15.10.6.4 for more details.
return object == (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 comparing values.
* @param {boolean} [isWhere] Specify performing partial comparisons.
* @param {Array} [stackA] Tracks traversed `value` objects.
* @param {Array} [stackB] Tracks traversed `other` objects.
* @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
*/
function equalObjects(object, other, equalFunc, customizer, isWhere, stackA, stackB) {
var objProps = keys(object),
objLength = objProps.length,
othProps = keys(other),
othLength = othProps.length;
if (objLength != othLength && !isWhere) {
return false;
}
var hasCtor,
index = -1;
while (++index < objLength) {
var key = objProps[index],
result = hasOwnProperty.call(other, key);
if (result) {
var objValue = object[key],
othValue = other[key];
result = undefined;
if (customizer) {
result = isWhere
? customizer(othValue, objValue, key)
: customizer(objValue, othValue, key);
}
if (typeof result == 'undefined') {
// Recursively compare objects (susceptible to call stack limits).
result = (objValue && objValue === othValue) || equalFunc(objValue, othValue, customizer, isWhere, stackA, stackB);
}
}
if (!result) {
return false;
}
hasCtor || (hasCtor = key == 'constructor');
}
if (!hasCtor) {
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)) {
return false;
}
}
return true;
}
/**
* Gets the extremum value of `collection` invoking `iteratee` for each value
* in `collection` to generate the criterion by which the value is ranked.
* The `iteratee` is invoked with three arguments; (value, index, collection).
*
* @private
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @param {boolean} [isMin] Specify returning the minimum, instead of the
* maximum, extremum value.
* @returns {*} Returns the extremum value.
*/
function extremumBy(collection, iteratee, isMin) {
var exValue = isMin ? POSITIVE_INFINITY : NEGATIVE_INFINITY,
computed = exValue,
result = computed;
baseEach(collection, function(value, index, collection) {
var current = iteratee(value, index, collection);
if ((isMin ? current < computed : current > computed) || (current === exValue && current === result)) {
computed = current;
result = value;
}
});
return result;
}
/**
* Gets the appropriate "callback" function. If the `_.callback` method is
* customized this function returns the custom method, otherwise it returns
* the `baseCallback` function. If arguments are provided the chosen function
* is invoked with them and its result is returned.
*
* @private
* @returns {Function} Returns the chosen function or its result.
*/
function getCallback(func, thisArg, argCount) {
var result = lodash.callback || callback;
result = result === callback ? baseCallback : result;
return argCount ? result(func, thisArg, argCount) : result;
}
/**
* 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 appropriate "indexOf" function. If the `_.indexOf` method is
* customized this function returns the custom method, otherwise it returns
* the `baseIndexOf` function. If arguments are provided the chosen function
* is invoked with them and its result is returned.
*
* @private
* @returns {Function|number} Returns the chosen function or its result.
*/
function getIndexOf(collection, target, fromIndex) {
var result = lodash.indexOf || indexOf;
result = result === indexOf ? baseIndexOf : result;
return collection ? result(collection, target, fromIndex) : 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 ? transforms.length : 0;
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 };
}
/**
* 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 = new array.constructor(length);
// Add array 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) {
var Ctor = object.constructor;
if (!(typeof Ctor == 'function' && Ctor instanceof Ctor)) {
Ctor = Object;
}
return new Ctor;
}
/**
* 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 {boolean} [isDeep] Specify a deep clone.
* @returns {Object} Returns the initialized clone.
*/
function initCloneByTag(object, tag, isDeep) {
var Ctor = object.constructor;
switch (tag) {
case arrayBufferTag:
return bufferClone(object);
case boolTag:
case dateTag:
return new Ctor(+object);
case float32Tag: case float64Tag:
case int8Tag: case int16Tag: case int32Tag:
case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:
var buffer = object.buffer;
return new Ctor(isDeep ? bufferClone(buffer) : buffer, object.byteOffset, object.length);
case numberTag:
case stringTag:
return new Ctor(object);
case regexpTag:
var result = new Ctor(object.source, reFlags.exec(object));
result.lastIndex = object.lastIndex;
}
return result;
}
/**
* Checks if `func` is eligible for `this` binding.
*
* @private
* @param {Function} func The function to check.
* @returns {boolean} Returns `true` if `func` is eligible, else `false`.
*/
function isBindable(func) {
var support = lodash.support,
result = !(support.funcNames ? func.name : support.funcDecomp);
if (!result) {
var source = fnToString.call(func);
if (!support.funcNames) {
result = !reFuncName.test(source);
}
if (!result) {
// Check if `func` references the `this` keyword and store the result.
result = reThis.test(source) || isNative(func);
baseSetData(func, result);
}
}
return result;
}
/**
* 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) {
value = +value;
length = length == null ? MAX_SAFE_INTEGER : length;
return value > -1 && value % 1 == 0 && value < length;
}
/**
* Checks if the provided 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') {
var length = object.length,
prereq = isLength(length) && isIndex(index, length);
} else {
prereq = type == 'string' && index in object;
}
return prereq && object[index] === value;
}
/**
* Checks if `value` is a valid array-like length.
*
* **Note:** This function is based on ES `ToLength`. See the
* [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength)
* for more details.
*
* @private
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
*/
function isLength(value) {
return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
}
/**
* 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 && (value === 0 ? ((1 / value) > 0) : !isObject(value));
}
/**
* Merges the function metadata of `source` into `data`.
*
* Merging metadata reduces the number of wrappers required 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`
* augment function arguments, making the order in which they are executed important,
* preventing the merging of metadata. However, we make an exception for a safe
* common 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;
var arityFlags = ARY_FLAG | REARG_FLAG,
bindFlags = BIND_FLAG | BIND_KEY_FLAG,
comboFlags = arityFlags | bindFlags | CURRY_BOUND_FLAG | CURRY_RIGHT_FLAG;
var isAry = bitmask & ARY_FLAG && !(srcBitmask & ARY_FLAG),
isRearg = bitmask & REARG_FLAG && !(srcBitmask & REARG_FLAG),
argPos = (isRearg ? data : source)[7],
ary = (isAry ? data : source)[8];
var isCommon = !(bitmask >= REARG_FLAG && srcBitmask > bindFlags) &&
!(bitmask > bindFlags && srcBitmask >= REARG_FLAG);
var isCombo = (newBitmask >= arityFlags && newBitmask <= comboFlags) &&
(bitmask < REARG_FLAG || ((isRearg || isAry) && argPos.length <= ary));
// 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]) : arrayCopy(value);
data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : arrayCopy(source[4]);
}
// Compose partial right arguments.
value = source[5];
if (value) {
partials = data[5];
data[5] = partials ? composeArgsRight(partials, value, source[6]) : arrayCopy(value);
data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : arrayCopy(source[6]);
}
// Use source `argPos` if available.
value = source[7];
if (value) {
data[7] = arrayCopy(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;
}
/**
* A specialized version of `_.pick` that picks `object` properties specified
* by the `props` array.
*
* @private
* @param {Object} object The source object.
* @param {string[]} props The property names to pick.
* @returns {Object} Returns the new object.
*/
function pickByArray(object, props) {
object = toObject(object);
var index = -1,
length = props.length,
result = {};
while (++index < length) {
var key = props[index];
if (key in object) {
result[key] = object[key];
}
}
return result;
}
/**
* A specialized version of `_.pick` that picks `object` properties `predicate`
* returns truthy for.
*
* @private
* @param {Object} object The source object.
* @param {Function} predicate The function invoked per iteration.
* @returns {Object} Returns the new object.
*/
function pickByCallback(object, predicate) {
var result = {};
baseForIn(object, function(value, key, object) {
if (predicate(value, key, object)) {
result[key] = value;
}
});
return result;
}
/**
* 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 = arrayCopy(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://code.google.com/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);
};
}());
/**
* A fallback implementation of `_.isPlainObject` which checks if `value`
* is an object created by the `Object` constructor or has a `[[Prototype]]`
* of `null`.
*
* @private
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
*/
function shimIsPlainObject(value) {
var Ctor,
support = lodash.support;
// Exit early for non `Object` objects.
if (!(isObjectLike(value) && objToString.call(value) == objectTag) ||
(!hasOwnProperty.call(value, 'constructor') &&
(Ctor = value.constructor, typeof Ctor == 'function' && !(Ctor instanceof Ctor)))) {
return false;
}
// IE < 9 iterates inherited properties before own properties. If the first
// iterated property is an object's own property then there are no inherited
// enumerable properties.
var result;
// In most environments an object's own properties are iterated before
// its inherited properties. If the last iterated property is an object's
// own property then there are no inherited enumerable properties.
baseForIn(value, function(subValue, key) {
result = key;
});
return typeof result == 'undefined' || hasOwnProperty.call(value, result);
}
/**
* A fallback implementation of `Object.keys` which creates an array of the
* own enumerable property names of `object`.
*
* @private
* @param {Object} object The object to inspect.
* @returns {Array} Returns the array of property names.
*/
function shimKeys(object) {
var props = keysIn(object),
propsLength = props.length,
length = propsLength && object.length,
support = lodash.support;
var allowIndexes = length && isLength(length) &&
(isArray(object) || (support.nonEnumArgs && isArguments(object)));
var index = -1,
result = [];
while (++index < propsLength) {
var key = props[index];
if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) {
result.push(key);
}
}
return result;
}
/**
* Converts `value` to an array-like object if it is not one.
*
* @private
* @param {*} value The value to process.
* @returns {Array|Object} Returns the array-like object.
*/
function toIterable(value) {
if (value == null) {
return [];
}
if (!isLength(value.length)) {
return values(value);
}
return isObject(value) ? value : Object(value);
}
/**
* Converts `value` to an object if it is not one.
*
* @private
* @param {*} value The value to process.
* @returns {Object} Returns the object.
*/
function toObject(value) {
return isObject(value) ? value : Object(value);
}
/**
* Creates a clone of `wrapper`.
*
* @private
* @param {Object} wrapper The wrapper to clone.
* @returns {Object} Returns the cloned wrapper.
*/
function wrapperClone(wrapper) {
return wrapper instanceof LazyWrapper
? wrapper.clone()
: new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__, arrayCopy(wrapper.__actions__));
}
/*------------------------------------------------------------------------*/
/**
* Creates an array of elements split into groups the length of `size`.
* If `collection` can't be split evenly, the final chunk will be the remaining
* elements.
*
* @static
* @memberOf _
* @category Array
* @param {Array} array The array to process.
* @param {number} [size=1] The length of each chunk.
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
* @returns {Array} Returns the new array containing 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 == null) {
size = 1;
} else {
size = nativeMax(+size || 1, 1);
}
var index = 0,
length = array ? array.length : 0,
resIndex = -1,
result = Array(ceil(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 _
* @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 = -1,
result = [];
while (++index < length) {
var value = array[index];
if (value) {
result[++resIndex] = value;
}
}
return result;
}
/**
* Creates an array excluding all values of the provided arrays using
* `SameValueZero` for equality comparisons.
*
* **Note:** `SameValueZero` comparisons are like strict equality comparisons,
* e.g. `===`, except that `NaN` matches `NaN`. See the
* [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-samevaluezero)
* for more details.
*
* @static
* @memberOf _
* @category Array
* @param {Array} array The array to inspect.
* @param {...Array} [values] The arrays of values to exclude.
* @returns {Array} Returns the new array of filtered values.
* @example
*
* _.difference([1, 2, 3], [5, 2, 10]);
* // => [1, 3]
*/
function difference() {
var index = -1,
length = arguments.length;
while (++index < length) {
var value = arguments[index];
if (isArray(value) || isArguments(value)) {
break;
}
}
return baseDifference(value, baseFlatten(arguments, false, true, ++index));
}
/**
* Creates a slice of `array` with `n` elements dropped from the beginning.
*
* @static
* @memberOf _
* @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 a callback for functions 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 [];
}
if (guard ? isIterateeCall(array, n, guard) : n == null) {
n = 1;
}
return baseSlice(array, n < 0 ? 0 : n);
}
/**
* Creates a slice of `array` with `n` elements dropped from the end.
*
* @static
* @memberOf _
* @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 a callback for functions 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 [];
}
if (guard ? isIterateeCall(array, n, guard) : n == null) {
n = 1;
}
n = length - (+n || 0);
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
* bound to `thisArg` and invoked with three arguments; (value, index, array).
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that match the properties of the given
* object, else `false`.
*
* @static
* @memberOf _
* @category Array
* @param {Array} array The array to query.
* @param {Function|Object|string} [predicate=_.identity] The function invoked
* per element.
* @param {*} [thisArg] The `this` binding of `predicate`.
* @returns {Array} Returns the slice of `array`.
* @example
*
* _.dropRightWhile([1, 2, 3], function(n) { return n > 1; });
* // => [1]
*
* var users = [
* { 'user': 'barney', 'age': 36, 'active': true },
* { 'user': 'fred', 'age': 40, 'active': false },
* { 'user': 'pebbles', 'age': 1, 'active': false }
* ];
*
* // using the "_.matches" callback shorthand
* _.pluck(_.dropRightWhile(users, { 'age': 1, 'active': false }), 'user');
* // => ['barney', 'fred']
*
* // using the "_.matchesProperty" callback shorthand
* _.pluck(_.dropRightWhile(users, 'active', false), 'user');
* // => ['barney']
*
* // using the "_.property" callback shorthand
* _.pluck(_.dropRightWhile(users, 'active'), 'user');
* // => ['barney', 'fred', 'pebbles']
*/
function dropRightWhile(array, predicate, thisArg) {
var length = array ? array.length : 0;
if (!length) {
return [];
}
predicate = getCallback(predicate, thisArg, 3);
while (length-- && predicate(array[length], length, array)) {}
return baseSlice(array, 0, length + 1);
}
/**
* Creates a slice of `array` excluding elements dropped from the beginning.
* Elements are dropped until `predicate` returns falsey. The predicate is
* bound to `thisArg` and invoked with three arguments; (value, index, array).
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* @static
* @memberOf _
* @category Array
* @param {Array} array The array to query.
* @param {Function|Object|string} [predicate=_.identity] The function invoked
* per element.
* @param {*} [thisArg] The `this` binding of `predicate`.
* @returns {Array} Returns the slice of `array`.
* @example
*
* _.dropWhile([1, 2, 3], function(n) { return n < 3; });
* // => [3]
*
* var users = [
* { 'user': 'barney', 'age': 36, 'active': false },
* { 'user': 'fred', 'age': 40, 'active': false },
* { 'user': 'pebbles', 'age': 1, 'active': true }
* ];
*
* // using the "_.matches" callback shorthand
* _.pluck(_.dropWhile(users, { 'age': 36, 'active': false }), 'user');
* // => ['fred', 'pebbles']
*
* // using the "_.matchesProperty" callback shorthand
* _.pluck(_.dropWhile(users, 'active', false), 'user');
* // => ['pebbles']
*
* // using the "_.property" callback shorthand
* _.pluck(_.dropWhile(users, 'active'), 'user');
* // => ['barney', 'fred', 'pebbles']
*/
function dropWhile(array, predicate, thisArg) {
var length = array ? array.length : 0;
if (!length) {
return [];
}
var index = -1;
predicate = getCallback(predicate, thisArg, 3);
while (++index < length && predicate(array[index], index, array)) {}
return baseSlice(array, index);
}
/**
* Fills elements of `array` with `value` from `start` up to, but not
* including, `end`.
*
* **Note:** This method mutates `array`.
*
* @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 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.
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* @static
* @memberOf _
* @category Array
* @param {Array} array The array to search.
* @param {Function|Object|string} [predicate=_.identity] The function invoked
* per iteration. If a property name or object is provided it is used to
* create a "_.property" or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `predicate`.
* @returns {number} Returns the index of the found element, else `-1`.
* @example
*
* var users = [
* { 'user': 'barney', 'age': 36, 'active': false },
* { 'user': 'fred', 'age': 40, 'active': true },
* { 'user': 'pebbles', 'age': 1, 'active': false }
* ];
*
* _.findIndex(users, function(chr) { return chr.age < 40; });
* // => 0
*
* // using the "_.matches" callback shorthand
* _.findIndex(users, { 'age': 40, 'active': true });
* // => 1
*
* // using the "_.matchesProperty" callback shorthand
* _.findIndex(users, 'age', 1);
* // => 2
*
* // using the "_.property" callback shorthand
* _.findIndex(users, 'active');
* // => 1
*/
function findIndex(array, predicate, thisArg) {
var index = -1,
length = array ? array.length : 0;
predicate = getCallback(predicate, thisArg, 3);
while (++index < length) {
if (predicate(array[index], index, array)) {
return index;
}
}
return -1;
}
/**
* This method is like `_.findIndex` except that it iterates over elements
* of `collection` from right to left.
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* @static
* @memberOf _
* @category Array
* @param {Array} array The array to search.
* @param {Function|Object|string} [predicate=_.identity] The function invoked
* per iteration. If a property name or object is provided it is used to
* create a "_.property" or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `predicate`.
* @returns {number} Returns the index of the found element, else `-1`.
* @example
*
* var users = [
* { 'user': 'barney', 'age': 36, 'active': true },
* { 'user': 'fred', 'age': 40, 'active': false },
* { 'user': 'pebbles', 'age': 1, 'active': false }
* ];
*
* _.findLastIndex(users, function(chr) { return chr.age < 40; });
* // => 2
*
* // using the "_.matches" callback shorthand
* _.findLastIndex(users, { 'age': 36, 'active': true });
* // => 0
*
* // using the "_.matchesProperty" callback shorthand
* _.findLastIndex(users, 'age', 40);
* // => 1
*
* // using the "_.property" callback shorthand
* _.findLastIndex(users, 'active');
* // => 0
*/
function findLastIndex(array, predicate, thisArg) {
var length = array ? array.length : 0;
predicate = getCallback(predicate, thisArg, 3);
while (length--) {
if (predicate(array[length], length, array)) {
return length;
}
}
return -1;
}
/**
* Gets the first element of `array`.
*
* @static
* @memberOf _
* @alias head
* @category Array
* @param {Array} array The array to query.
* @returns {*} Returns the first element of `array`.
* @example
*
* _.first([1, 2, 3]);
* // => 1
*
* _.first([]);
* // => undefined
*/
function first(array) {
return array ? array[0] : undefined;
}
/**
* Flattens a nested array. If `isDeep` is `true` the array is recursively
* flattened, otherwise it is only flattened a single level.
*
* @static
* @memberOf _
* @category Array
* @param {Array} array The array to flatten.
* @param {boolean} [isDeep] Specify a deep flatten.
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
* @returns {Array} Returns the new flattened array.
* @example
*
* _.flatten([1, [2], [3, [[4]]]]);
* // => [1, 2, 3, [[4]]];
*
* // using `isDeep`
* _.flatten([1, [2], [3, [[4]]]], true);
* // => [1, 2, 3, 4];
*/
function flatten(array, isDeep, guard) {
var length = array ? array.length : 0;
if (guard && isIterateeCall(array, isDeep, guard)) {
isDeep = false;
}
return length ? baseFlatten(array, isDeep) : [];
}
/**
* Recursively flattens a nested array.
*
* @static
* @memberOf _
* @category Array
* @param {Array} array The array to recursively flatten.
* @returns {Array} Returns the new flattened array.
* @example
*
* _.flattenDeep([1, [2], [3, [[4]]]]);
* // => [1, 2, 3, 4];
*/
function flattenDeep(array) {
var length = array ? array.length : 0;
return length ? baseFlatten(array, true) : [];
}
/**
* Gets the index at which the first occurrence of `value` is found in `array`
* using `SameValueZero` for equality comparisons. If `fromIndex` is negative,
* it is used as the offset from the end of `array`. If `array` is sorted
* providing `true` for `fromIndex` performs a faster binary search.
*
* **Note:** `SameValueZero` comparisons are like strict equality comparisons,
* e.g. `===`, except that `NaN` matches `NaN`. See the
* [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-samevaluezero)
* for more details.
*
* @static
* @memberOf _
* @category Array
* @param {Array} array The array to search.
* @param {*} value The value to search for.
* @param {boolean|number} [fromIndex=0] The index to search from or `true`
* to perform a binary search on a sorted array.
* @returns {number} Returns the index of the matched value, else `-1`.
* @example
*
* _.indexOf([1, 2, 3, 1, 2, 3], 2);
* // => 1
*
* // using `fromIndex`
* _.indexOf([1, 2, 3, 1, 2, 3], 2, 3);
* // => 4
*
* // performing a binary search
* _.indexOf([4, 4, 5, 5, 6, 6], 5, true);
* // => 2
*/
function indexOf(array, value, fromIndex) {
var length = array ? array.length : 0;
if (!length) {
return -1;
}
if (typeof fromIndex == 'number') {
fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : (fromIndex || 0);
} else if (fromIndex) {
var index = binaryIndex(array, value),
other = array[index];
return (value === value ? value === other : other !== other) ? index : -1;
}
return baseIndexOf(array, value, fromIndex);
}
/**
* Gets all but the last element of `array`.
*
* @static
* @memberOf _
* @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 in all provided arrays using `SameValueZero`
* for equality comparisons.
*
* **Note:** `SameValueZero` comparisons are like strict equality comparisons,
* e.g. `===`, except that `NaN` matches `NaN`. See the
* [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-samevaluezero)
* for more details.
*
* @static
* @memberOf _
* @category Array
* @param {...Array} [arrays] The arrays to inspect.
* @returns {Array} Returns the new array of shared values.
* @example
*
* _.intersection([1, 2, 3], [5, 2, 1, 4], [2, 1]);
* // => [1, 2]
*/
function intersection() {
var args = [],
argsIndex = -1,
argsLength = arguments.length,
caches = [],
indexOf = getIndexOf(),
isCommon = indexOf == baseIndexOf;
while (++argsIndex < argsLength) {
var value = arguments[argsIndex];
if (isArray(value) || isArguments(value)) {
args.push(value);
caches.push(isCommon && value.length >= 120 && createCache(argsIndex && value));
}
}
argsLength = args.length;
var array = args[0],
index = -1,
length = array ? array.length : 0,
result = [],
seen = caches[0];
outer:
while (++index < length) {
value = array[index];
if ((seen ? cacheIndexOf(seen, value) : indexOf(result, value)) < 0) {
argsIndex = argsLength;
while (--argsIndex) {
var cache = caches[argsIndex];
if ((cache ? cacheIndexOf(cache, value) : indexOf(args[argsIndex], value)) < 0) {
continue outer;
}
}
if (seen) {
seen.push(value);
}
result.push(value);
}
}
return result;
}
/**
* Gets the last element of `array`.
*
* @static
* @memberOf _
* @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 _
* @category Array
* @param {Array} array The array to search.
* @param {*} value The value to search for.
* @param {boolean|number} [fromIndex=array.length-1] The index to search from
* or `true` to perform a binary search on a sorted array.
* @returns {number} Returns the index of the matched value, else `-1`.
* @example
*
* _.lastIndexOf([1, 2, 3, 1, 2, 3], 2);
* // => 4
*
* // using `fromIndex`
* _.lastIndexOf([1, 2, 3, 1, 2, 3], 2, 3);
* // => 1
*
* // performing a binary search
* _.lastIndexOf([4, 4, 5, 5, 6, 6], 5, true);
* // => 3
*/
function lastIndexOf(array, value, fromIndex) {
var length = array ? array.length : 0;
if (!length) {
return -1;
}
var index = length;
if (typeof fromIndex == 'number') {
index = (fromIndex < 0 ? nativeMax(length + fromIndex, 0) : nativeMin(fromIndex || 0, length - 1)) + 1;
} else if (fromIndex) {
index = binaryIndex(array, value, true) - 1;
var other = array[index];
return (value === value ? value === other : other !== other) ? index : -1;
}
if (value !== value) {
return indexOfNaN(array, index, true);
}
while (index--) {
if (array[index] === value) {
return index;
}
}
return -1;
}
/**
* Removes all provided values from `array` using `SameValueZero` for equality
* comparisons.
*
* **Notes:**
* - Unlike `_.without`, this method mutates `array`.
* - `SameValueZero` comparisons are like strict equality comparisons, e.g. `===`,
* except that `NaN` matches `NaN`. See the [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-samevaluezero)
* for more details.
*
* @static
* @memberOf _
* @category Array
* @param {Array} array The array to modify.
* @param {...*} [values] The values to remove.
* @returns {Array} Returns `array`.
* @example
*
* var array = [1, 2, 3, 1, 2, 3];
* _.pull(array, 2, 3);
* console.log(array);
* // => [1, 1]
*/
function pull() {
var array = arguments[0];
if (!(array && array.length)) {
return array;
}
var index = 0,
indexOf = getIndexOf(),
length = arguments.length;
while (++index < length) {
var fromIndex = 0,
value = arguments[index];
while ((fromIndex = indexOf(array, value, fromIndex)) > -1) {
splice.call(array, fromIndex, 1);
}
}
return array;
}
/**
* Removes elements from `array` corresponding to the given indexes and returns
* an array of the removed elements. Indexes may be specified as an array of
* indexes or as individual arguments.
*
* **Note:** Unlike `_.at`, this method mutates `array`.
*
* @static
* @memberOf _
* @category Array
* @param {Array} array The array to modify.
* @param {...(number|number[])} [indexes] The indexes of elements to remove,
* specified as individual indexes or arrays of indexes.
* @returns {Array} Returns the new array of removed elements.
* @example
*
* var array = [5, 10, 15, 20];
* var evens = _.pullAt(array, [1, 3]);
*
* console.log(array);
* // => [5, 15]
*
* console.log(evens);
* // => [10, 20]
*/
function pullAt(array) {
return basePullAt(array || [], baseFlatten(arguments, false, false, 1));
}
/**
* Removes all elements from `array` that `predicate` returns truthy for
* and returns an array of the removed elements. The predicate is bound to
* `thisArg` and invoked with three arguments; (value, index, array).
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* **Note:** Unlike `_.filter`, this method mutates `array`.
*
* @static
* @memberOf _
* @category Array
* @param {Array} array The array to modify.
* @param {Function|Object|string} [predicate=_.identity] The function invoked
* per iteration. If a property name or object is provided it is used to
* create a "_.property" or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `predicate`.
* @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, thisArg) {
var index = -1,
length = array ? array.length : 0,
result = [];
predicate = getCallback(predicate, thisArg, 3);
while (++index < length) {
var value = array[index];
if (predicate(value, index, array)) {
result.push(value);
splice.call(array, index--, 1);
length--;
}
}
return result;
}
/**
* Gets all but the first element of `array`.
*
* @static
* @memberOf _
* @alias tail
* @category Array
* @param {Array} array The array to query.
* @returns {Array} Returns the slice of `array`.
* @example
*
* _.rest([1, 2, 3]);
* // => [2, 3]
*/
function rest(array) {
return drop(array, 1);
}
/**
* Creates a slice of `array` from `start` up to, but not including, `end`.
*
* **Note:** This function is used instead of `Array#slice` to support node
* lists in IE < 9 and to ensure dense arrays are returned.
*
* @static
* @memberOf _
* @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;
}
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. If an iteratee
* function is provided it is invoked for `value` and each element of `array`
* to compute their sort ranking. The iteratee is bound to `thisArg` and
* invoked with one argument; (value).
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* @static
* @memberOf _
* @category Array
* @param {Array} array The sorted array to inspect.
* @param {*} value The value to evaluate.
* @param {Function|Object|string} [iteratee=_.identity] The function invoked
* per iteration. If a property name or object is provided it is used to
* create a "_.property" or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `iteratee`.
* @returns {number} Returns the index at which `value` should be inserted
* into `array`.
* @example
*
* _.sortedIndex([30, 50], 40);
* // => 1
*
* _.sortedIndex([4, 4, 5, 5, 6, 6], 5);
* // => 2
*
* var dict = { 'data': { 'thirty': 30, 'forty': 40, 'fifty': 50 } };
*
* // using an iteratee function
* _.sortedIndex(['thirty', 'fifty'], 'forty', function(word) {
* return this.data[word];
* }, dict);
* // => 1
*
* // using the "_.property" callback shorthand
* _.sortedIndex([{ 'x': 30 }, { 'x': 50 }], { 'x': 40 }, 'x');
* // => 1
*/
function sortedIndex(array, value, iteratee, thisArg) {
var func = getCallback(iteratee);
return (func === baseCallback && iteratee == null)
? binaryIndex(array, value)
: binaryIndexBy(array, value, func(iteratee, thisArg, 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 _
* @category Array
* @param {Array} array The sorted array to inspect.
* @param {*} value The value to evaluate.
* @param {Function|Object|string} [iteratee=_.identity] The function invoked
* per iteration. If a property name or object is provided it is used to
* create a "_.property" or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `iteratee`.
* @returns {number} Returns the index at which `value` should be inserted
* into `array`.
* @example
*
* _.sortedLastIndex([4, 4, 5, 5, 6, 6], 5);
* // => 4
*/
function sortedLastIndex(array, value, iteratee, thisArg) {
var func = getCallback(iteratee);
return (func === baseCallback && iteratee == null)
? binaryIndex(array, value, true)
: binaryIndexBy(array, value, func(iteratee, thisArg, 1), true);
}
/**
* Creates a slice of `array` with `n` elements taken from the beginning.
*
* @static
* @memberOf _
* @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 a callback for functions 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) {
var length = array ? array.length : 0;
if (!length) {
return [];
}
if (guard ? isIterateeCall(array, n, guard) : n == null) {
n = 1;
}
return baseSlice(array, 0, n < 0 ? 0 : n);
}
/**
* Creates a slice of `array` with `n` elements taken from the end.
*
* @static
* @memberOf _
* @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 a callback for functions 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 [];
}
if (guard ? isIterateeCall(array, n, guard) : n == null) {
n = 1;
}
n = length - (+n || 0);
return baseSlice(array, n < 0 ? 0 : n);
}
/**
* Creates a slice of `array` with elements taken from the end. Elements are
* taken until `predicate` returns falsey. The predicate is bound to `thisArg`
* and invoked with three arguments; (value, index, array).
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* @static
* @memberOf _
* @category Array
* @param {Array} array The array to query.
* @param {Function|Object|string} [predicate=_.identity] The function invoked
* per element.
* @param {*} [thisArg] The `this` binding of `predicate`.
* @returns {Array} Returns the slice of `array`.
* @example
*
* _.takeRightWhile([1, 2, 3], function(n) { return n > 1; });
* // => [2, 3]
*
* var users = [
* { 'user': 'barney', 'age': 36, 'active': true },
* { 'user': 'fred', 'age': 40, 'active': false },
* { 'user': 'pebbles', 'age': 1, 'active': false }
* ];
*
* // using the "_.matches" callback shorthand
* _.pluck(_.takeRightWhile(users, { 'age': 1, 'active': true }), 'user');
* // => ['pebbles']
*
* // using the "_.matchesProperty" callback shorthand
* _.pluck(_.takeRightWhile(users, 'active', false), 'user');
* // => ['fred', 'pebbles']
*
* // using the "_.property" callback shorthand
* _.pluck(_.takeRightWhile(users, 'active'), 'user');
* // => []
*/
function takeRightWhile(array, predicate, thisArg) {
var length = array ? array.length : 0;
if (!length) {
return [];
}
predicate = getCallback(predicate, thisArg, 3);
while (length-- && predicate(array[length], length, array)) {}
return baseSlice(array, length + 1);
}
/**
* Creates a slice of `array` with elements taken from the beginning. Elements
* are taken until `predicate` returns falsey. The predicate is bound to
* `thisArg` and invoked with three arguments; (value, index, array).
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* @static
* @memberOf _
* @category Array
* @param {Array} array The array to query.
* @param {Function|Object|string} [predicate=_.identity] The function invoked
* per element.
* @param {*} [thisArg] The `this` binding of `predicate`.
* @returns {Array} Returns the slice of `array`.
* @example
*
* _.takeWhile([1, 2, 3], function(n) { return n < 3; });
* // => [1, 2]
*
* var users = [
* { 'user': 'barney', 'age': 36, 'active': false },
* { 'user': 'fred', 'age': 40, 'active': false },
* { 'user': 'pebbles', 'age': 1, 'active': true }
* ];
*
* // using the "_.matches" callback shorthand
* _.pluck(_.takeWhile(users, { 'age': 36, 'active': true }), 'user');
* // => ['barney']
*
* // using the "_.matchesProperty" callback shorthand
* _.pluck(_.takeWhile(users, 'active', false), 'user');
* // => ['barney', 'fred']
*
* // using the "_.property" callback shorthand
* _.pluck(_.takeWhile(users, 'active'), 'user');
* // => []
*/
function takeWhile(array, predicate, thisArg) {
var length = array ? array.length : 0;
if (!length) {
return [];
}
var index = -1;
predicate = getCallback(predicate, thisArg, 3);
while (++index < length && predicate(array[index], index, array)) {}
return baseSlice(array, 0, index);
}
/**
* Creates an array of unique values, in order, of the provided arrays using
* `SameValueZero` for equality comparisons.
*
* **Note:** `SameValueZero` comparisons are like strict equality comparisons,
* e.g. `===`, except that `NaN` matches `NaN`. See the
* [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-samevaluezero)
* for more details.
*
* @static
* @memberOf _
* @category Array
* @param {...Array} [arrays] The arrays to inspect.
* @returns {Array} Returns the new array of combined values.
* @example
*
* _.union([1, 2, 3], [5, 2, 1, 4], [2, 1]);
* // => [1, 2, 3, 5, 4]
*/
function union() {
return baseUniq(baseFlatten(arguments, false, true));
}
/**
* Creates a duplicate-value-free version of an array using `SameValueZero`
* for equality comparisons. Providing `true` for `isSorted` performs a faster
* search algorithm for sorted arrays. If an iteratee function is provided it
* is invoked for each value in the array to generate the criterion by which
* uniqueness is computed. The `iteratee` is bound to `thisArg` and invoked
* with three arguments; (value, index, array).
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* **Note:** `SameValueZero` comparisons are like strict equality comparisons,
* e.g. `===`, except that `NaN` matches `NaN`. See the
* [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-samevaluezero)
* for more details.
*
* @static
* @memberOf _
* @alias unique
* @category Array
* @param {Array} array The array to inspect.
* @param {boolean} [isSorted] Specify the array is sorted.
* @param {Function|Object|string} [iteratee] The function invoked per iteration.
* If a property name or object is provided it is used to create a "_.property"
* or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `iteratee`.
* @returns {Array} Returns the new duplicate-value-free array.
* @example
*
* _.uniq([1, 2, 1]);
* // => [1, 2]
*
* // using `isSorted`
* _.uniq([1, 1, 2], true);
* // => [1, 2]
*
* // using an iteratee function
* _.uniq([1, 2.5, 1.5, 2], function(n) { return this.floor(n); }, Math);
* // => [1, 2.5]
*
* // using the "_.property" callback shorthand
* _.uniq([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
* // => [{ 'x': 1 }, { 'x': 2 }]
*/
function uniq(array, isSorted, iteratee, thisArg) {
var length = array ? array.length : 0;
if (!length) {
return [];
}
// Juggle arguments.
if (typeof isSorted != 'boolean' && isSorted != null) {
thisArg = iteratee;
iteratee = isIterateeCall(array, isSorted, thisArg) ? null : isSorted;
isSorted = false;
}
var func = getCallback();
if (!(func === baseCallback && iteratee == null)) {
iteratee = func(iteratee, thisArg, 3);
}
return (isSorted && getIndexOf() == baseIndexOf)
? sortedUniq(array, iteratee)
: baseUniq(array, iteratee);
}
/**
* 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 _
* @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) {
var index = -1,
length = (array && array.length && arrayMax(arrayMap(array, getLength))) >>> 0,
result = Array(length);
while (++index < length) {
result[index] = arrayMap(array, baseProperty(index));
}
return result;
}
/**
* Creates an array excluding all provided values using `SameValueZero` for
* equality comparisons.
*
* **Note:** `SameValueZero` comparisons are like strict equality comparisons,
* e.g. `===`, except that `NaN` matches `NaN`. See the
* [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-samevaluezero)
* for more details.
*
* @static
* @memberOf _
* @category Array
* @param {Array} array The array to filter.
* @param {...*} [values] The values to exclude.
* @returns {Array} Returns the new array of filtered values.
* @example
*
* _.without([1, 2, 1, 0, 3, 1, 4], 0, 1);
* // => [2, 3, 4]
*/
function without(array) {
return baseDifference(array, baseSlice(arguments, 1));
}
/**
* Creates an array that is the symmetric difference of the provided arrays.
* See [Wikipedia](https://en.wikipedia.org/wiki/Symmetric_difference) for
* more details.
*
* @static
* @memberOf _
* @category Array
* @param {...Array} [arrays] The arrays to inspect.
* @returns {Array} Returns the new array of values.
* @example
*
* _.xor([1, 2, 3], [5, 2, 1, 4]);
* // => [3, 5, 4]
*
* _.xor([1, 2, 5], [2, 3, 5], [3, 4, 5]);
* // => [1, 4, 5]
*/
function xor() {
var index = -1,
length = arguments.length;
while (++index < length) {
var array = arguments[index];
if (isArray(array) || isArguments(array)) {
var result = result
? baseDifference(result, array).concat(baseDifference(array, result))
: array;
}
}
return result ? baseUniq(result) : [];
}
/**
* 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 _
* @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]]
*/
function zip() {
var length = arguments.length,
array = Array(length);
while (length--) {
array[length] = arguments[length];
}
return unzip(array);
}
/**
* Creates an object composed from arrays of property names and values. Provide
* either a single two dimensional array, e.g. `[[key1, value1], [key2, value2]]`
* or two arrays, one of property names and one of corresponding values.
*
* @static
* @memberOf _
* @alias object
* @category Array
* @param {Array} props The property names.
* @param {Array} [values=[]] The property values.
* @returns {Object} Returns the new object.
* @example
*
* _.zipObject(['fred', 'barney'], [30, 40]);
* // => { 'fred': 30, 'barney': 40 }
*/
function zipObject(props, values) {
var index = -1,
length = props ? props.length : 0,
result = {};
if (length && !values && !isArray(props[0])) {
values = [];
}
while (++index < length) {
var key = props[index];
if (values) {
result[key] = values[index];
} else if (key) {
result[key[0]] = key[1];
}
}
return result;
}
/*------------------------------------------------------------------------*/
/**
* Creates a `lodash` object that wraps `value` with explicit method
* chaining enabled.
*
* @static
* @memberOf _
* @category Chain
* @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(chr) { return chr.user + ' is ' + chr.age; })
* .first()
* .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
* bound to `thisArg` and invoked with one argument; (value). The purpose of
* this method is to "tap into" a method chain in order to perform operations
* on intermediate results within the chain.
*
* @static
* @memberOf _
* @category Chain
* @param {*} value The value to provide to `interceptor`.
* @param {Function} interceptor The function to invoke.
* @param {*} [thisArg] The `this` binding of `interceptor`.
* @returns {*} Returns `value`.
* @example
*
* _([1, 2, 3])
* .tap(function(array) { array.pop(); })
* .reverse()
* .value();
* // => [2, 1]
*/
function tap(value, interceptor, thisArg) {
interceptor.call(thisArg, value);
return value;
}
/**
* This method is like `_.tap` except that it returns the result of `interceptor`.
*
* @static
* @memberOf _
* @category Chain
* @param {*} value The value to provide to `interceptor`.
* @param {Function} interceptor The function to invoke.
* @param {*} [thisArg] The `this` binding of `interceptor`.
* @returns {*} Returns the result of `interceptor`.
* @example
*
* _([1, 2, 3])
* .last()
* .thru(function(value) { return [value]; })
* .value();
* // => [3]
*/
function thru(value, interceptor, thisArg) {
return interceptor.call(thisArg, value);
}
/**
* Enables explicit method chaining on the wrapper object.
*
* @name chain
* @memberOf _
* @category Chain
* @returns {Object} Returns the new `lodash` wrapper instance.
* @example
*
* var users = [
* { 'user': 'barney', 'age': 36 },
* { 'user': 'fred', 'age': 40 }
* ];
*
* // without explicit chaining
* _(users).first();
* // => { 'user': 'barney', 'age': 36 }
*
* // with explicit chaining
* _(users).chain()
* .first()
* .pick('user')
* .value();
* // => { 'user': 'barney' }
*/
function wrapperChain() {
return chain(this);
}
/**
* Executes the chained sequence and returns the wrapped result.
*
* @name commit
* @memberOf _
* @category Chain
* @returns {Object} Returns the new `lodash` wrapper instance.
* @example
*
* var array = [1, 2];
* var wrapper = _(array).push(3);
*
* console.log(array);
* // => [1, 2]
*
* wrapper = wrapper.commit();
* console.log(array);
* // => [1, 2, 3]
*
* wrapper.last();
* // => 3
*
* console.log(array);
* // => [1, 2, 3]
*/
function wrapperCommit() {
return new LodashWrapper(this.value(), this.__chain__);
}
/**
* Creates a clone of the chained sequence planting `value` as the wrapped value.
*
* @name plant
* @memberOf _
* @category Chain
* @returns {Object} Returns the new `lodash` wrapper instance.
* @example
*
* var array = [1, 2];
* var wrapper = _(array).map(_.partial(Math.pow, _, 2));
*
* var other = [3, 4];
* var otherWrapper = wrapper.plant(other);
*
* otherWrapper.value();
* // => [9, 16]
*
* wrapper.value();
* // => [1, 4]
*/
function wrapperPlant(value) {
var result,
parent = this;
while (parent instanceof LodashWrapper) {
var clone = wrapperClone(parent);
if (result) {
previous.__wrapped__ = clone;
} else {
result = clone;
}
var previous = clone;
parent = parent.__wrapped__;
}
previous.__wrapped__ = value;
return result;
}
/**
* Reverses the wrapped array so the first element becomes the last, the
* second element becomes the second to last, and so on.
*
* **Note:** This method mutates the wrapped array.
*
* @name reverse
* @memberOf _
* @category Chain
* @returns {Object} Returns the new reversed `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) {
if (this.__actions__.length) {
value = new LazyWrapper(this);
}
return new LodashWrapper(value.reverse(), this.__chain__);
}
return this.thru(function(value) {
return value.reverse();
});
}
/**
* Produces the result of coercing the unwrapped value to a string.
*
* @name toString
* @memberOf _
* @category Chain
* @returns {string} Returns the coerced string value.
* @example
*
* _([1, 2, 3]).toString();
* // => '1,2,3'
*/
function wrapperToString() {
return (this.value() + '');
}
/**
* Executes the chained sequence to extract the unwrapped value.
*
* @name value
* @memberOf _
* @alias run, toJSON, valueOf
* @category Chain
* @returns {*} Returns the resolved unwrapped value.
* @example
*
* _([1, 2, 3]).value();
* // => [1, 2, 3]
*/
function wrapperValue() {
return baseWrapperValue(this.__wrapped__, this.__actions__);
}
/*------------------------------------------------------------------------*/
/**
* Creates an array of elements corresponding to the given keys, or indexes,
* of `collection`. Keys may be specified as individual arguments or as arrays
* of keys.
*
* @static
* @memberOf _
* @category Collection
* @param {Array|Object|string} collection The collection to iterate over.
* @param {...(number|number[]|string|string[])} [props] The property names
* or indexes of elements to pick, specified individually or in arrays.
* @returns {Array} Returns the new array of picked elements.
* @example
*
* _.at(['a', 'b', 'c', 'd', 'e'], [0, 2, 4]);
* // => ['a', 'c', 'e']
*
* _.at(['fred', 'barney', 'pebbles'], 0, 2);
* // => ['fred', 'pebbles']
*/
function at(collection) {
var length = collection ? collection.length : 0;
if (isLength(length)) {
collection = toIterable(collection);
}
return baseAt(collection, baseFlatten(arguments, false, false, 1));
}
/**
* Checks if `value` is in `collection` using `SameValueZero` for equality
* comparisons. If `fromIndex` is negative, it is used as the offset from
* the end of `collection`.
*
* **Note:** `SameValueZero` comparisons are like strict equality comparisons,
* e.g. `===`, except that `NaN` matches `NaN`. See the
* [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-samevaluezero)
* for more details.
*
* @static
* @memberOf _
* @alias contains, include
* @category Collection
* @param {Array|Object|string} collection The collection to search.
* @param {*} target The value to search for.
* @param {number} [fromIndex=0] The index to search from.
* @returns {boolean} Returns `true` if a matching element 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, target, fromIndex) {
var length = collection ? collection.length : 0;
if (!isLength(length)) {
collection = values(collection);
length = collection.length;
}
if (!length) {
return false;
}
if (typeof fromIndex == 'number') {
fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : (fromIndex || 0);
} else {
fromIndex = 0;
}
return (typeof collection == 'string' || !isArray(collection) && isString(collection))
? (fromIndex < length && collection.indexOf(target, fromIndex) > -1)
: (getIndexOf(collection, target, fromIndex) > -1);
}
/**
* Creates an object composed of keys generated from the results of running
* each element of `collection` through `iteratee`. The corresponding value
* of each key is the number of times the key was returned by `iteratee`.
* The `iteratee` is bound to `thisArg` and invoked with three arguments;
* (value, index|key, collection).
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* @static
* @memberOf _
* @category Collection
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [iteratee=_.identity] The function invoked
* per iteration. If a property name or object is provided it is used to
* create a "_.property" or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `iteratee`.
* @returns {Object} Returns the composed aggregate object.
* @example
*
* _.countBy([4.3, 6.1, 6.4], function(n) { return Math.floor(n); });
* // => { '4': 1, '6': 2 }
*
* _.countBy([4.3, 6.1, 6.4], function(n) { return this.floor(n); }, Math);
* // => { '4': 1, '6': 2 }
*
* _.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`.
* The predicate is bound to `thisArg` and invoked with three arguments;
* (value, index|key, collection).
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* @static
* @memberOf _
* @alias all
* @category Collection
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [predicate=_.identity] The function invoked
* per iteration. If a property name or object is provided it is used to
* create a "_.property" or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `predicate`.
* @returns {boolean} Returns `true` if all elements pass the predicate check,
* else `false`.
* @example
*
* _.every([true, 1, null, 'yes']);
* // => false
*
* var users = [
* { 'user': 'barney', 'age': 36, 'active': false },
* { 'user': 'fred', 'age': 40, 'active': false }
* ];
*
* // using the "_.matches" callback shorthand
* _.every(users, { 'age': 36, 'active': false });
* // => false
*
* // using the "_.matchesProperty" callback shorthand
* _.every(users, 'active', false);
* // => true
*
* // using the "_.property" callback shorthand
* _.every(users, 'active');
* // => false
*/
function every(collection, predicate, thisArg) {
var func = isArray(collection) ? arrayEvery : baseEvery;
if (typeof predicate != 'function' || typeof thisArg != 'undefined') {
predicate = getCallback(predicate, thisArg, 3);
}
return func(collection, predicate);
}
/**
* Iterates over elements of `collection`, returning an array of all elements
* `predicate` returns truthy for. The predicate is bound to `thisArg` and
* invoked with three arguments; (value, index|key, collection).
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* @static
* @memberOf _
* @alias select
* @category Collection
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [predicate=_.identity] The function invoked
* per iteration. If a property name or object is provided it is used to
* create a "_.property" or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `predicate`.
* @returns {Array} Returns the new filtered array.
* @example
*
* var evens = _.filter([1, 2, 3, 4], function(n) { return n % 2 == 0; });
* // => [2, 4]
*
* var users = [
* { 'user': 'barney', 'age': 36, 'active': true },
* { 'user': 'fred', 'age': 40, 'active': false }
* ];
*
* // using the "_.matches" callback shorthand
* _.pluck(_.filter(users, { 'age': 36, 'active': true }), 'user');
* // => ['barney']
*
* // using the "_.matchesProperty" callback shorthand
* _.pluck(_.filter(users, 'active', false), 'user');
* // => ['fred']
*
* // using the "_.property" callback shorthand
* _.pluck(_.filter(users, 'active'), 'user');
* // => ['barney']
*/
function filter(collection, predicate, thisArg) {
var func = isArray(collection) ? arrayFilter : baseFilter;
predicate = getCallback(predicate, thisArg, 3);
return func(collection, predicate);
}
/**
* Iterates over elements of `collection`, returning the first element
* `predicate` returns truthy for. The predicate is bound to `thisArg` and
* invoked with three arguments; (value, index|key, collection).
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* @static
* @memberOf _
* @alias detect
* @category Collection
* @param {Array|Object|string} collection The collection to search.
* @param {Function|Object|string} [predicate=_.identity] The function invoked
* per iteration. If a property name or object is provided it is used to
* create a "_.property" or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `predicate`.
* @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 }
* ];
*
* _.result(_.find(users, function(chr) { return chr.age < 40; }), 'user');
* // => 'barney'
*
* // using the "_.matches" callback shorthand
* _.result(_.find(users, { 'age': 1, 'active': true }), 'user');
* // => 'pebbles'
*
* // using the "_.matchesProperty" callback shorthand
* _.result(_.find(users, 'active', false), 'user');
* // => 'fred'
*
* // using the "_.property" callback shorthand
* _.result(_.find(users, 'active'), 'user');
* // => 'barney'
*/
function find(collection, predicate, thisArg) {
if (isArray(collection)) {
var index = findIndex(collection, predicate, thisArg);
return index > -1 ? collection[index] : undefined;
}
predicate = getCallback(predicate, thisArg, 3);
return baseFind(collection, predicate, baseEach);
}
/**
* This method is like `_.find` except that it iterates over elements of
* `collection` from right to left.
*
* @static
* @memberOf _
* @category Collection
* @param {Array|Object|string} collection The collection to search.
* @param {Function|Object|string} [predicate=_.identity] The function invoked
* per iteration. If a property name or object is provided it is used to
* create a "_.property" or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `predicate`.
* @returns {*} Returns the matched element, else `undefined`.
* @example
*
* _.findLast([1, 2, 3, 4], function(n) { return n % 2 == 1; });
* // => 3
*/
function findLast(collection, predicate, thisArg) {
predicate = getCallback(predicate, thisArg, 3);
return baseFind(collection, predicate, baseEachRight);
}
/**
* Performs a deep comparison between each element in `collection` and the
* source object, returning the first element that has equivalent property
* values.
*
* **Note:** This method supports comparing arrays, booleans, `Date` objects,
* numbers, `Object` objects, regexes, and strings. Objects are compared by
* their own, not inherited, enumerable properties. For comparing a single
* own or inherited property value see `_.matchesProperty`.
*
* @static
* @memberOf _
* @category Collection
* @param {Array|Object|string} collection The collection to search.
* @param {Object} source The object of property values to match.
* @returns {*} Returns the matched element, else `undefined`.
* @example
*
* var users = [
* { 'user': 'barney', 'age': 36, 'active': true },
* { 'user': 'fred', 'age': 40, 'active': false }
* ];
*
* _.result(_.findWhere(users, { 'age': 36, 'active': true }), 'user');
* // => 'barney'
*
* _.result(_.findWhere(users, { 'age': 40, 'active': false }), 'user');
* // => 'fred'
*/
function findWhere(collection, source) {
return find(collection, baseMatches(source));
}
/**
* Iterates over elements of `collection` invoking `iteratee` for each element.
* The `iteratee` is bound to `thisArg` and invoked with three arguments;
* (value, index|key, collection). Iterator 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 `_.forIn` or `_.forOwn`
* may be used for object iteration.
*
* @static
* @memberOf _
* @alias each
* @category Collection
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
* @param {*} [thisArg] The `this` binding of `iteratee`.
* @returns {Array|Object|string} Returns `collection`.
* @example
*
* _([1, 2, 3]).forEach(function(n) { console.log(n); }).value();
* // => logs each value from left to right and returns the array
*
* _.forEach({ 'one': 1, 'two': 2, 'three': 3 }, function(n, key) { console.log(n, key); });
* // => logs each value-key pair and returns the object (iteration order is not guaranteed)
*/
function forEach(collection, iteratee, thisArg) {
return (typeof iteratee == 'function' && typeof thisArg == 'undefined' && isArray(collection))
? arrayEach(collection, iteratee)
: baseEach(collection, bindCallback(iteratee, thisArg, 3));
}
/**
* This method is like `_.forEach` except that it iterates over elements of
* `collection` from right to left.
*
* @static
* @memberOf _
* @alias eachRight
* @category Collection
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
* @param {*} [thisArg] The `this` binding of `iteratee`.
* @returns {Array|Object|string} Returns `collection`.
* @example
*
* _([1, 2, 3]).forEachRight(function(n) { console.log(n); }).join(',');
* // => logs each value from right to left and returns the array
*/
function forEachRight(collection, iteratee, thisArg) {
return (typeof iteratee == 'function' && typeof thisArg == 'undefined' && isArray(collection))
? arrayEachRight(collection, iteratee)
: baseEachRight(collection, bindCallback(iteratee, thisArg, 3));
}
/**
* Creates an object composed of keys generated from the results of running
* each element of `collection` through `iteratee`. The corresponding value
* of each key is an array of the elements responsible for generating the key.
* The `iteratee` is bound to `thisArg` and invoked with three arguments;
* (value, index|key, collection).
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* @static
* @memberOf _
* @category Collection
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [iteratee=_.identity] The function invoked
* per iteration. If a property name or object is provided it is used to
* create a "_.property" or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `iteratee`.
* @returns {Object} Returns the composed aggregate object.
* @example
*
* _.groupBy([4.2, 6.1, 6.4], function(n) { return Math.floor(n); });
* // => { '4': [4.2], '6': [6.1, 6.4] }
*
* _.groupBy([4.2, 6.1, 6.4], function(n) { return this.floor(n); }, Math);
* // => { '4': [4.2], '6': [6.1, 6.4] }
*
* // using the "_.property" callback 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];
}
});
/**
* Creates an object composed of keys generated from the results of running
* each element of `collection` through `iteratee`. The corresponding value
* of each key is the last element responsible for generating the key. The
* iteratee function is bound to `thisArg` and invoked with three arguments;
* (value, index|key, collection).
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* @static
* @memberOf _
* @category Collection
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [iteratee=_.identity] The function invoked
* per iteration. If a property name or object is provided it is used to
* create a "_.property" or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `iteratee`.
* @returns {Object} Returns the composed aggregate object.
* @example
*
* var keyData = [
* { 'dir': 'left', 'code': 97 },
* { 'dir': 'right', 'code': 100 }
* ];
*
* _.indexBy(keyData, 'dir');
* // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }
*
* _.indexBy(keyData, function(object) { return String.fromCharCode(object.code); });
* // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
*
* _.indexBy(keyData, function(object) { return this.fromCharCode(object.code); }, String);
* // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
*/
var indexBy = createAggregator(function(result, value, key) {
result[key] = value;
});
/**
* Invokes the method named by `methodName` on 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 is invoked for, and `this` bound to, each element in `collection`.
*
* @static
* @memberOf _
* @category Collection
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|string} methodName The name of the method to invoke or
* the function invoked per iteration.
* @param {...*} [args] The arguments to invoke the method with.
* @returns {Array} Returns the array of results.
* @example
*
* _.invoke([[5, 1, 7], [3, 2, 1]], 'sort');
* // => [[1, 5, 7], [1, 2, 3]]
*
* _.invoke([123, 456], String.prototype.split, '');
* // => [['1', '2', '3'], ['4', '5', '6']]
*/
function invoke(collection, methodName) {
return baseInvoke(collection, methodName, baseSlice(arguments, 2));
}
/**
* Creates an array of values by running each element in `collection` through
* `iteratee`. The `iteratee` is bound to `thisArg` and invoked with three
* arguments; (value, index|key, collection).
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* Many lodash methods are guarded to work as interatees for methods like
* `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
*
* The guarded methods are:
* `ary`, `callback`, `chunk`, `clone`, `create`, `curry`, `curryRight`, `drop`,
* `dropRight`, `fill`, `flatten`, `invert`, `max`, `min`, `parseInt`, `slice`,
* `sortBy`, `take`, `takeRight`, `template`, `trim`, `trimLeft`, `trimRight`,
* `trunc`, `random`, `range`, `sample`, `uniq`, and `words`
*
* @static
* @memberOf _
* @alias collect
* @category Collection
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [iteratee=_.identity] The function invoked
* per iteration. If a property name or object is provided it is used to
* create a "_.property" or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `iteratee`.
* @returns {Array} Returns the new mapped array.
* @example
*
* _.map([1, 2, 3], function(n) { return n * 3; });
* // => [3, 6, 9]
*
* _.map({ 'one': 1, 'two': 2, 'three': 3 }, function(n) { return n * 3; });
* // => [3, 6, 9] (iteration order is not guaranteed)
*
* var users = [
* { 'user': 'barney' },
* { 'user': 'fred' }
* ];
*
* // using the "_.property" callback shorthand
* _.map(users, 'user');
* // => ['barney', 'fred']
*/
function map(collection, iteratee, thisArg) {
var func = isArray(collection) ? arrayMap : baseMap;
iteratee = getCallback(iteratee, thisArg, 3);
return func(collection, iteratee);
}
/**
* Gets the maximum value of `collection`. If `collection` is empty or falsey
* `-Infinity` is returned. If an iteratee function is provided it is invoked
* for each value in `collection` to generate the criterion by which the value
* is ranked. The `iteratee` is bound to `thisArg` and invoked with three
* arguments; (value, index, collection).
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* @static
* @memberOf _
* @category Collection
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [iteratee] The function invoked per iteration.
* If a property name or object is provided it is used to create a "_.property"
* or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `iteratee`.
* @returns {*} Returns the maximum value.
* @example
*
* _.max([4, 2, 8, 6]);
* // => 8
*
* _.max([]);
* // => -Infinity
*
* var users = [
* { 'user': 'barney', 'age': 36 },
* { 'user': 'fred', 'age': 40 }
* ];
*
* _.max(users, function(chr) { return chr.age; });
* // => { 'user': 'fred', 'age': 40 };
*
* // using the "_.property" callback shorthand
* _.max(users, 'age');
* // => { 'user': 'fred', 'age': 40 };
*/
var max = createExtremum(arrayMax);
/**
* Gets the minimum value of `collection`. If `collection` is empty or falsey
* `Infinity` is returned. If an iteratee function is provided it is invoked
* for each value in `collection` to generate the criterion by which the value
* is ranked. The `iteratee` is bound to `thisArg` and invoked with three
* arguments; (value, index, collection).
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* @static
* @memberOf _
* @category Collection
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [iteratee] The function invoked per iteration.
* If a property name or object is provided it is used to create a "_.property"
* or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `iteratee`.
* @returns {*} Returns the minimum value.
* @example
*
* _.min([4, 2, 8, 6]);
* // => 2
*
* _.min([]);
* // => Infinity
*
* var users = [
* { 'user': 'barney', 'age': 36 },
* { 'user': 'fred', 'age': 40 }
* ];
*
* _.min(users, function(chr) { return chr.age; });
* // => { 'user': 'barney', 'age': 36 };
*
* // using the "_.property" callback shorthand
* _.min(users, 'age');
* // => { 'user': 'barney', 'age': 36 };
*/
var min = createExtremum(arrayMin, true);
/**
* Creates an array of elements split into two groups, the first of which
* contains elements `predicate` returns truthy for, while the second of which
* contains elements `predicate` returns falsey for. The predicate is bound
* to `thisArg` and invoked with three arguments; (value, index|key, collection).
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* @static
* @memberOf _
* @category Collection
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [predicate=_.identity] The function invoked
* per iteration. If a property name or object is provided it is used to
* create a "_.property" or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `predicate`.
* @returns {Array} Returns the array of grouped elements.
* @example
*
* _.partition([1, 2, 3], function(n) { return n % 2; });
* // => [[1, 3], [2]]
*
* _.partition([1.2, 2.3, 3.4], function(n) { return this.floor(n) % 2; }, Math);
* // => [[1, 3], [2]]
*
* var users = [
* { 'user': 'barney', 'age': 36, 'active': false },
* { 'user': 'fred', 'age': 40, 'active': true },
* { 'user': 'pebbles', 'age': 1, 'active': false }
* ];
*
* var mapper = function(array) { return _.pluck(array, 'user'); };
*
* // using the "_.matches" callback shorthand
* _.map(_.partition(users, { 'age': 1, 'active': false }), mapper);
* // => [['pebbles'], ['barney', 'fred']]
*
* // using the "_.matchesProperty" callback shorthand
* _.map(_.partition(users, 'active', false), mapper);
* // => [['barney', 'pebbles'], ['fred']]
*
* // using the "_.property" callback shorthand
* _.map(_.partition(users, 'active'), mapper);
* // => [['fred'], ['barney', 'pebbles']]
*/
var partition = createAggregator(function(result, value, key) {
result[key ? 0 : 1].push(value);
}, function() { return [[], []]; });
/**
* Gets the value of `key` from all elements in `collection`.
*
* @static
* @memberOf _
* @category Collection
* @param {Array|Object|string} collection The collection to iterate over.
* @param {string} key The key of the property to pluck.
* @returns {Array} Returns the property values.
* @example
*
* var users = [
* { 'user': 'barney', 'age': 36 },
* { 'user': 'fred', 'age': 40 }
* ];
*
* _.pluck(users, 'user');
* // => ['barney', 'fred']
*
* var userIndex = _.indexBy(users, 'user');
* _.pluck(userIndex, 'age');
* // => [36, 40] (iteration order is not guaranteed)
*/
function pluck(collection, key) {
return map(collection, baseProperty(key));
}
/**
* Reduces `collection` to a value which is the accumulated result of running
* each element in `collection` through `iteratee`, where each successive
* invocation is supplied the return value of the previous. If `accumulator`
* is not provided the first element of `collection` is used as the initial
* value. The `iteratee` is bound to `thisArg`and invoked with four arguments;
* (accumulator, value, index|key, collection).
*
* Many lodash methods are guarded to work as interatees for methods like
* `_.reduce`, `_.reduceRight`, and `_.transform`.
*
* The guarded methods are:
* `assign`, `defaults`, `merge`, and `sortAllBy`
*
* @static
* @memberOf _
* @alias foldl, inject
* @category Collection
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
* @param {*} [accumulator] The initial value.
* @param {*} [thisArg] The `this` binding of `iteratee`.
* @returns {*} Returns the accumulated value.
* @example
*
* var sum = _.reduce([1, 2, 3], function(sum, n) { return sum + n; });
* // => 6
*
* var mapped = _.reduce({ 'a': 1, 'b': 2, 'c': 3 }, function(result, n, key) {
* result[key] = n * 3;
* return result;
* }, {});
* // => { 'a': 3, 'b': 6, 'c': 9 } (iteration order is not guaranteed)
*/
function reduce(collection, iteratee, accumulator, thisArg) {
var func = isArray(collection) ? arrayReduce : baseReduce;
return func(collection, getCallback(iteratee, thisArg, 4), accumulator, arguments.length < 3, baseEach);
}
/**
* This method is like `_.reduce` except that it iterates over elements of
* `collection` from right to left.
*
* @static
* @memberOf _
* @alias foldr
* @category Collection
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
* @param {*} [accumulator] The initial value.
* @param {*} [thisArg] The `this` binding of `iteratee`.
* @returns {*} Returns the accumulated value.
* @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, thisArg) {
var func = isArray(collection) ? arrayReduceRight : baseReduce;
return func(collection, getCallback(iteratee, thisArg, 4), accumulator, arguments.length < 3, baseEachRight);
}
/**
* The opposite of `_.filter`; this method returns the elements of `collection`
* that `predicate` does **not** return truthy for.
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* @static
* @memberOf _
* @category Collection
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [predicate=_.identity] The function invoked
* per iteration. If a property name or object is provided it is used to
* create a "_.property" or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `predicate`.
* @returns {Array} Returns the new filtered array.
* @example
*
* var odds = _.reject([1, 2, 3, 4], function(n) { return n % 2 == 0; });
* // => [1, 3]
*
* var users = [
* { 'user': 'barney', 'age': 36, 'active': false },
* { 'user': 'fred', 'age': 40, 'active': true }
* ];
*
* // using the "_.matches" callback shorthand
* _.pluck(_.reject(users, { 'age': 40, 'active': true }), 'user');
* // => ['barney']
*
* // using the "_.matchesProperty" callback shorthand
* _.pluck(_.reject(users, 'active', false), 'user');
* // => ['fred']
*
* // using the "_.property" callback shorthand
* _.pluck(_.reject(users, 'active'), 'user');
* // => ['barney']
*/
function reject(collection, predicate, thisArg) {
var func = isArray(collection) ? arrayFilter : baseFilter;
predicate = getCallback(predicate, thisArg, 3);
return func(collection, function(value, index, collection) {
return !predicate(value, index, collection);
});
}
/**
* Gets a random element or `n` random elements from a collection.
*
* @static
* @memberOf _
* @category Collection
* @param {Array|Object|string} collection The collection to sample.
* @param {number} [n] The number of elements to sample.
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
* @returns {*} Returns the random sample(s).
* @example
*
* _.sample([1, 2, 3, 4]);
* // => 2
*
* _.sample([1, 2, 3, 4], 2);
* // => [3, 1]
*/
function sample(collection, n, guard) {
if (guard ? isIterateeCall(collection, n, guard) : n == null) {
collection = toIterable(collection);
var length = collection.length;
return length > 0 ? collection[baseRandom(0, length - 1)] : undefined;
}
var result = shuffle(collection);
result.length = nativeMin(n < 0 ? 0 : (+n || 0), result.length);
return result;
}
/**
* Creates an array of shuffled values, using a version of the Fisher-Yates
* shuffle. See [Wikipedia](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle)
* for more details.
*
* @static
* @memberOf _
* @category Collection
* @param {Array|Object|string} 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) {
collection = toIterable(collection);
var index = -1,
length = collection.length,
result = Array(length);
while (++index < length) {
var rand = baseRandom(0, index);
if (index != rand) {
result[index] = result[rand];
}
result[rand] = collection[index];
}
return result;
}
/**
* Gets the size of `collection` by returning `collection.length` for
* array-like values or the number of own enumerable properties for objects.
*
* @static
* @memberOf _
* @category Collection
* @param {Array|Object|string} collection The collection to inspect.
* @returns {number} Returns the size of `collection`.
* @example
*
* _.size([1, 2]);
* // => 2
*
* _.size({ 'one': 1, 'two': 2, 'three': 3 });
* // => 3
*
* _.size('pebbles');
* // => 7
*/
function size(collection) {
var length = collection ? collection.length : 0;
return isLength(length) ? length : keys(collection).length;
}
/**
* Checks if `predicate` returns truthy for **any** element of `collection`.
* The function returns as soon as it finds a passing value and does not iterate
* over the entire collection. The predicate is bound to `thisArg` and invoked
* with three arguments; (value, index|key, collection).
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* @static
* @memberOf _
* @alias any
* @category Collection
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Function|Object|string} [predicate=_.identity] The function invoked
* per iteration. If a property name or object is provided it is used to
* create a "_.property" or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `predicate`.
* @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', 'age': 36, 'active': false },
* { 'user': 'fred', 'age': 40, 'active': true }
* ];
*
* // using the "_.matches" callback shorthand
* _.some(users, { 'age': 1, 'active': true });
* // => false
*
* // using the "_.matchesProperty" callback shorthand
* _.some(users, 'active', false);
* // => true
*
* // using the "_.property" callback shorthand
* _.some(users, 'active');
* // => true
*/
function some(collection, predicate, thisArg) {
var func = isArray(collection) ? arraySome : baseSome;
if (typeof predicate != 'function' || typeof thisArg != 'undefined') {
predicate = getCallback(predicate, thisArg, 3);
}
return func(collection, predicate);
}
/**
* Creates an array of elements, sorted in ascending order by the results of
* running each element in a collection through `iteratee`. This method performs
* a stable sort, that is, it preserves the original sort order of equal elements.
* The `iteratee` is bound to `thisArg` and invoked with three arguments;
* (value, index|key, collection).
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* @static
* @memberOf _
* @category Collection
* @param {Array|Object|string} collection The collection to iterate over.
* @param {Array|Function|Object|string} [iteratee=_.identity] The function
* invoked per iteration. If a property name or an object is provided it is
* used to create a "_.property" or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `iteratee`.
* @returns {Array} Returns the new sorted array.
* @example
*
* _.sortBy([1, 2, 3], function(n) { return Math.sin(n); });
* // => [3, 1, 2]
*
* _.sortBy([1, 2, 3], function(n) { return this.sin(n); }, Math);
* // => [3, 1, 2]
*
* var users = [
* { 'user': 'fred' },
* { 'user': 'pebbles' },
* { 'user': 'barney' }
* ];
*
* // using the "_.property" callback shorthand
* _.pluck(_.sortBy(users, 'user'), 'user');
* // => ['barney', 'fred', 'pebbles']
*/
function sortBy(collection, iteratee, thisArg) {
var index = -1,
length = collection ? collection.length : 0,
result = isLength(length) ? Array(length) : [];
if (thisArg && isIterateeCall(collection, iteratee, thisArg)) {
iteratee = null;
}
iteratee = getCallback(iteratee, thisArg, 3);
baseEach(collection, function(value, key, collection) {
result[++index] = { 'criteria': iteratee(value, key, collection), 'index': index, 'value': value };
});
return baseSortBy(result, compareAscending);
}
/**
* This method is like `_.sortBy` except that it sorts by property names
* instead of an iteratee function.
*
* @static
* @memberOf _
* @category Collection
* @param {Array|Object|string} collection The collection to iterate over.
* @param {...(string|string[])} props The property names to sort by,
* specified as individual property names or arrays of property names.
* @returns {Array} Returns the new sorted array.
* @example
*
* var users = [
* { 'user': 'barney', 'age': 36 },
* { 'user': 'fred', 'age': 40 },
* { 'user': 'barney', 'age': 26 },
* { 'user': 'fred', 'age': 30 }
* ];
*
* _.map(_.sortByAll(users, ['user', 'age']), _.values);
* // => [['barney', 26], ['barney', 36], ['fred', 30], ['fred', 40]]
*/
function sortByAll(collection) {
var args = arguments;
if (args.length > 3 && isIterateeCall(args[1], args[2], args[3])) {
args = [collection, args[1]];
}
var index = -1,
length = collection ? collection.length : 0,
props = baseFlatten(args, false, false, 1),
result = isLength(length) ? Array(length) : [];
baseEach(collection, function(value) {
var length = props.length,
criteria = Array(length);
while (length--) {
criteria[length] = value == null ? undefined : value[props[length]];
}
result[++index] = { 'criteria': criteria, 'index': index, 'value': value };
});
return baseSortBy(result, compareMultipleAscending);
}
/**
* Performs a deep comparison between each element in `collection` and the
* source object, returning an array of all elements that have equivalent
* property values.
*
* **Note:** This method supports comparing arrays, booleans, `Date` objects,
* numbers, `Object` objects, regexes, and strings. Objects are compared by
* their own, not inherited, enumerable properties. For comparing a single
* own or inherited property value see `_.matchesProperty`.
*
* @static
* @memberOf _
* @category Collection
* @param {Array|Object|string} collection The collection to search.
* @param {Object} source The object of property values to match.
* @returns {Array} Returns the new filtered array.
* @example
*
* var users = [
* { 'user': 'barney', 'age': 36, 'active': false, 'pets': ['hoppy'] },
* { 'user': 'fred', 'age': 40, 'active': true, 'pets': ['baby puss', 'dino'] }
* ];
*
* _.pluck(_.where(users, { 'age': 36, 'active': false }), 'user');
* // => ['barney']
*
* _.pluck(_.where(users, { 'pets': ['dino'] }), 'user');
* // => ['fred']
*/
function where(collection, source) {
return filter(collection, baseMatches(source));
}
/*------------------------------------------------------------------------*/
/**
* Gets the number of milliseconds that have elapsed since the Unix epoch
* (1 January 1970 00:00:00 UTC).
*
* @static
* @memberOf _
* @category Date
* @example
*
* _.defer(function(stamp) { console.log(_.now() - stamp); }, _.now());
* // => logs the number of milliseconds it took for the deferred function to be invoked
*/
var now = nativeNow || function() {
return new Date().getTime();
};
/*------------------------------------------------------------------------*/
/**
* The opposite of `_.before`; this method creates a function that invokes
* `func` once it is called `n` or more times.
*
* @static
* @memberOf _
* @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') {
if (typeof n == 'function') {
var temp = n;
n = func;
func = temp;
} else {
throw new TypeError(FUNC_ERROR_TEXT);
}
}
n = nativeIsFinite(n = +n) ? n : 0;
return function() {
if (--n < 1) {
return func.apply(this, arguments);
}
};
}
/**
* Creates a function that accepts up to `n` arguments ignoring any
* additional arguments.
*
* @static
* @memberOf _
* @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 a callback for functions like `_.map`.
* @returns {Function} Returns the new function.
* @example
*
* _.map(['6', '8', '10'], _.ary(parseInt, 1));
* // => [6, 8, 10]
*/
function ary(func, n, guard) {
if (guard && isIterateeCall(func, n, guard)) {
n = null;
}
n = (func && n == null) ? func.length : nativeMax(+n || 0, 0);
return createWrapper(func, ARY_FLAG, null, null, null, null, n);
}
/**
* Creates a function that invokes `func`, with the `this` binding and arguments
* of the created function, while it is called less than `n` times. Subsequent
* calls to the created function return the result of the last `func` invocation.
*
* @static
* @memberOf _
* @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('#add').on('click', _.before(5, addContactToList));
* // => allows adding up to 4 contacts to the list
*/
function before(n, func) {
var result;
if (typeof func != 'function') {
if (typeof n == 'function') {
var temp = n;
n = func;
func = temp;
} else {
throw new TypeError(FUNC_ERROR_TEXT);
}
}
return function() {
if (--n > 0) {
result = func.apply(this, arguments);
} else {
func = null;
}
return result;
};
}
/**
* Creates a function that invokes `func` with the `this` binding of `thisArg`
* and prepends any additional `_.bind` arguments to those provided to the
* bound function.
*
* 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 does not set the `length`
* property of bound functions.
*
* @static
* @memberOf _
* @category Function
* @param {Function} func The function to bind.
* @param {*} thisArg The `this` binding of `func`.
* @param {...*} [args] 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!'
*
* // using placeholders
* var bound = _.bind(greet, object, _, '!');
* bound('hi');
* // => 'hi fred!'
*/
function bind(func, thisArg) {
var bitmask = BIND_FLAG;
if (arguments.length > 2) {
var partials = baseSlice(arguments, 2),
holders = replaceHolders(partials, bind.placeholder);
bitmask |= PARTIAL_FLAG;
}
return createWrapper(func, bitmask, thisArg, partials, holders);
}
/**
* Binds methods of an object to the object itself, overwriting the existing
* method. Method names may be specified as individual arguments or as arrays
* of method names. If no method names are provided all enumerable function
* properties, own and inherited, of `object` are bound.
*
* **Note:** This method does not set the `length` property of bound functions.
*
* @static
* @memberOf _
* @category Function
* @param {Object} object The object to bind and assign the bound methods to.
* @param {...(string|string[])} [methodNames] The object method names to bind,
* specified as individual method names or arrays of method names.
* @returns {Object} Returns `object`.
* @example
*
* var view = {
* 'label': 'docs',
* 'onClick': function() { console.log('clicked ' + this.label); }
* };
*
* _.bindAll(view);
* jQuery('#docs').on('click', view.onClick);
* // => logs 'clicked docs' when the element is clicked
*/
function bindAll(object) {
return baseBindAll(object,
arguments.length > 1
? baseFlatten(arguments, false, false, 1)
: functions(object)
);
}
/**
* Creates a function that invokes the method at `object[key]` and prepends
* any additional `_.bindKey` arguments to those provided to the bound function.
*
* 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://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 _
* @category Function
* @param {Object} object The object the method belongs to.
* @param {string} key The key of the method.
* @param {...*} [args] 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!'
*
* // using placeholders
* var bound = _.bindKey(object, 'greet', _, '!');
* bound('hi');
* // => 'hiya fred!'
*/
function bindKey(object, key) {
var bitmask = BIND_FLAG | BIND_KEY_FLAG;
if (arguments.length > 2) {
var partials = baseSlice(arguments, 2),
holders = replaceHolders(partials, bindKey.placeholder);
bitmask |= PARTIAL_FLAG;
}
return createWrapper(key, bitmask, object, partials, holders);
}
/**
* Creates a function that accepts one or more arguments of `func` that when
* called either invokes `func` returning its result, if all `func` arguments
* have been provided, or returns a function that accepts one or more of 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 does not set the `length` property of curried functions.
*
* @static
* @memberOf _
* @category Function
* @param {Function} func The function to curry.
* @param {number} [arity=func.length] The arity of `func`.
* @param- {Object} [guard] Enables use as a callback for functions 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]
*
* // using placeholders
* curried(1)(_, 3)(2);
* // => [1, 2, 3]
*/
function curry(func, arity, guard) {
if (guard && isIterateeCall(func, arity, guard)) {
arity = null;
}
var result = createWrapper(func, CURRY_FLAG, null, null, null, null, null, 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 does not set the `length` property of curried functions.
*
* @static
* @memberOf _
* @category Function
* @param {Function} func The function to curry.
* @param {number} [arity=func.length] The arity of `func`.
* @param- {Object} [guard] Enables use as a callback for functions 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]
*
* // using placeholders
* curried(3)(1, _)(2);
* // => [1, 2, 3]
*/
function curryRight(func, arity, guard) {
if (guard && isIterateeCall(func, arity, guard)) {
arity = null;
}
var result = createWrapper(func, CURRY_RIGHT_FLAG, null, null, null, null, null, arity);
result.placeholder = curryRight.placeholder;
return result;
}
/**
* Creates a function that delays invoking `func` until after `wait` milliseconds
* have elapsed since the last time it was invoked. The created function comes
* with a `cancel` method to cancel delayed invocations. Provide an options
* object to indicate that `func` should be invoked on the leading and/or
* trailing edge of the `wait` timeout. 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 the debounced function is
* invoked more than once during the `wait` timeout.
*
* See [David Corbacho's article](http://drupalmotion.com/article/debounce-and-throttle-visual-explanation)
* for details over the differences between `_.debounce` and `_.throttle`.
*
* @static
* @memberOf _
* @category Function
* @param {Function} func The function to debounce.
* @param {number} wait 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 is 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 the click event is fired, debouncing subsequent calls
* jQuery('#postbox').on('click', _.debounce(sendMail, 300, {
* 'leading': true,
* 'trailing': false
* }));
*
* // ensure `batchLog` is invoked once after 1 second of debounced calls
* var source = new EventSource('/stream');
* jQuery(source).on('message', _.debounce(batchLog, 250, {
* 'maxWait': 1000
* }));
*
* // cancel a debounced call
* var todoChanges = _.debounce(batchLog, 1000);
* Object.observe(models.todo, todoChanges);
*
* Object.observe(models, function(changes) {
* if (_.find(changes, { 'user': 'todo', 'type': 'delete'})) {
* todoChanges.cancel();
* }
* }, ['delete']);
*
* // ...at some point `models.todo` is changed
* models.todo.completed = true;
*
* // ...before 1 second has passed `models.todo` is deleted
* // which cancels the debounced `todoChanges` call
* delete models.todo;
*/
function debounce(func, wait, options) {
var args,
maxTimeoutId,
result,
stamp,
thisArg,
timeoutId,
trailingCall,
lastCalled = 0,
maxWait = false,
trailing = true;
if (typeof func != 'function') {
throw new TypeError(FUNC_ERROR_TEXT);
}
wait = wait < 0 ? 0 : wait;
if (options === true) {
var leading = true;
trailing = false;
} else if (isObject(options)) {
leading = options.leading;
maxWait = 'maxWait' in options && nativeMax(+options.maxWait || 0, wait);
trailing = 'trailing' in options ? options.trailing : trailing;
}
function cancel() {
if (timeoutId) {
clearTimeout(timeoutId);
}
if (maxTimeoutId) {
clearTimeout(maxTimeoutId);
}
maxTimeoutId = timeoutId = trailingCall = undefined;
}
function delayed() {
var remaining = wait - (now() - stamp);
if (remaining <= 0 || remaining > wait) {
if (maxTimeoutId) {
clearTimeout(maxTimeoutId);
}
var isCalled = trailingCall;
maxTimeoutId = timeoutId = trailingCall = undefined;
if (isCalled) {
lastCalled = now();
result = func.apply(thisArg, args);
if (!timeoutId && !maxTimeoutId) {
args = thisArg = null;
}
}
} else {
timeoutId = setTimeout(delayed, remaining);
}
}
function maxDelayed() {
if (timeoutId) {
clearTimeout(timeoutId);
}
maxTimeoutId = timeoutId = trailingCall = undefined;
if (trailing || (maxWait !== wait)) {
lastCalled = now();
result = func.apply(thisArg, args);
if (!timeoutId && !maxTimeoutId) {
args = thisArg = null;
}
}
}
function debounced() {
args = arguments;
stamp = now();
thisArg = this;
trailingCall = trailing && (timeoutId || !leading);
if (maxWait === false) {
var leadingCall = leading && !timeoutId;
} else {
if (!maxTimeoutId && !leading) {
lastCalled = stamp;
}
var remaining = maxWait - (stamp - lastCalled),
isCalled = remaining <= 0 || remaining > maxWait;
if (isCalled) {
if (maxTimeoutId) {
maxTimeoutId = clearTimeout(maxTimeoutId);
}
lastCalled = stamp;
result = func.apply(thisArg, args);
}
else if (!maxTimeoutId) {
maxTimeoutId = setTimeout(maxDelayed, remaining);
}
}
if (isCalled && timeoutId) {
timeoutId = clearTimeout(timeoutId);
}
else if (!timeoutId && wait !== maxWait) {
timeoutId = setTimeout(delayed, wait);
}
if (leadingCall) {
isCalled = true;
result = func.apply(thisArg, args);
}
if (isCalled && !timeoutId && !maxTimeoutId) {
args = thisArg = null;
}
return result;
}
debounced.cancel = cancel;
return debounced;
}
/**
* Defers invoking the `func` until the current call stack has cleared. Any
* additional arguments are provided to `func` when it is invoked.
*
* @static
* @memberOf _
* @category Function
* @param {Function} func The function to defer.
* @param {...*} [args] The arguments to invoke the function with.
* @returns {number} Returns the timer id.
* @example
*
* _.defer(function(text) { console.log(text); }, 'deferred');
* // logs 'deferred' after one or more milliseconds
*/
function defer(func) {
return baseDelay(func, 1, arguments, 1);
}
/**
* Invokes `func` after `wait` milliseconds. Any additional arguments are
* provided to `func` when it is invoked.
*
* @static
* @memberOf _
* @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 the function with.
* @returns {number} Returns the timer id.
* @example
*
* _.delay(function(text) { console.log(text); }, 1000, 'later');
* // => logs 'later' after one second
*/
function delay(func, wait) {
return baseDelay(func, wait, arguments, 2);
}
/**
* Creates a function that returns the result of invoking the provided
* functions with the `this` binding of the created function, where each
* successive invocation is supplied the return value of the previous.
*
* @static
* @memberOf _
* @category Function
* @param {...Function} [funcs] Functions to invoke.
* @returns {Function} Returns the new function.
* @example
*
* function add(x, y) {
* return x + y;
* }
*
* function square(n) {
* return n * n;
* }
*
* var addSquare = _.flow(add, square);
* addSquare(1, 2);
* // => 9
*/
function flow() {
var funcs = arguments,
length = funcs.length;
if (!length) {
return function() { return arguments[0]; };
}
if (!arrayEvery(funcs, isFunction)) {
throw new TypeError(FUNC_ERROR_TEXT);
}
return function() {
var index = 0,
result = funcs[index].apply(this, arguments);
while (++index < length) {
result = funcs[index].call(this, result);
}
return result;
};
}
/**
* This method is like `_.flow` except that it creates a function that
* invokes the provided functions from right to left.
*
* @static
* @memberOf _
* @alias backflow, compose
* @category Function
* @param {...Function} [funcs] Functions to invoke.
* @returns {Function} Returns the new function.
* @example
*
* function add(x, y) {
* return x + y;
* }
*
* function square(n) {
* return n * n;
* }
*
* var addSquare = _.flowRight(square, add);
* addSquare(1, 2);
* // => 9
*/
function flowRight() {
var funcs = arguments,
fromIndex = funcs.length - 1;
if (fromIndex < 0) {
return function() { return arguments[0]; };
}
if (!arrayEvery(funcs, isFunction)) {
throw new TypeError(FUNC_ERROR_TEXT);
}
return function() {
var index = fromIndex,
result = funcs[index].apply(this, arguments);
while (index--) {
result = funcs[index].call(this, result);
}
return result;
};
}
/**
* 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 coerced to a string and used as the
* 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 ES `Map` method interface
* of `get`, `has`, and `set`. See the
* [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-properties-of-the-map-prototype-object)
* for more details.
*
* @static
* @memberOf _
* @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 memoizing function.
* @example
*
* var upperCase = _.memoize(function(string) {
* return string.toUpperCase();
* });
*
* upperCase('fred');
* // => 'FRED'
*
* // modifying the result cache
* upperCase.cache.set('fred', 'BARNEY');
* upperCase('fred');
* // => 'BARNEY'
*
* // replacing `_.memoize.Cache`
* var object = { 'user': 'fred' };
* var other = { 'user': 'barney' };
* var identity = _.memoize(_.identity);
*
* identity(object);
* // => { 'user': 'fred' }
* identity(other);
* // => { 'user': 'fred' }
*
* _.memoize.Cache = WeakMap;
* var identity = _.memoize(_.identity);
*
* identity(object);
* // => { 'user': 'fred' }
* identity(other);
* // => { 'user': 'barney' }
*/
function memoize(func, resolver) {
if (typeof func != 'function' || (resolver && typeof resolver != 'function')) {
throw new TypeError(FUNC_ERROR_TEXT);
}
var memoized = function() {
var cache = memoized.cache,
key = resolver ? resolver.apply(this, arguments) : arguments[0];
if (cache.has(key)) {
return cache.get(key);
}
var result = func.apply(this, arguments);
cache.set(key, result);
return result;
};
memoized.cache = new memoize.Cache;
return memoized;
}
/**
* 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 _
* @category Function
* @param {Function} predicate The predicate to negate.
* @returns {Function} Returns the new 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 call. The `func` is invoked
* with the `this` binding of the created function.
*
* @static
* @memberOf _
* @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(func, 2);
}
/**
* Creates a function that invokes `func` with `partial` arguments prepended
* to those provided to the new function. 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 does not set the `length` property of partially
* applied functions.
*
* @static
* @memberOf _
* @category Function
* @param {Function} func The function to partially apply arguments to.
* @param {...*} [args] 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'
*
* // using placeholders
* var greetFred = _.partial(greet, _, 'fred');
* greetFred('hi');
* // => 'hi fred'
*/
function partial(func) {
var partials = baseSlice(arguments, 1),
holders = replaceHolders(partials, partial.placeholder);
return createWrapper(func, PARTIAL_FLAG, null, partials, holders);
}
/**
* This method is like `_.partial` except that partially applied arguments
* are appended to those provided to the new function.
*
* The `_.partialRight.placeholder` value, which defaults to `_` in monolithic
* builds, may be used as a placeholder for partially applied arguments.
*
* **Note:** This method does not set the `length` property of partially
* applied functions.
*
* @static
* @memberOf _
* @category Function
* @param {Function} func The function to partially apply arguments to.
* @param {...*} [args] 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'
*
* // using placeholders
* var sayHelloTo = _.partialRight(greet, 'hello', _);
* sayHelloTo('fred');
* // => 'hello fred'
*/
function partialRight(func) {
var partials = baseSlice(arguments, 1),
holders = replaceHolders(partials, partialRight.placeholder);
return createWrapper(func, PARTIAL_RIGHT_FLAG, null, 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 _
* @category Function
* @param {Function} func The function to rearrange arguments for.
* @param {...(number|number[])} indexes The arranged argument indexes,
* specified as individual indexes or arrays of 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 map = _.rearg(_.map, [1, 0]);
* map(function(n) { return n * 3; }, [1, 2, 3]);
* // => [3, 6, 9]
*/
function rearg(func) {
var indexes = baseFlatten(arguments, false, false, 1);
return createWrapper(func, REARG_FLAG, null, null, null, indexes);
}
/**
* Creates a function that invokes `func` with the `this` binding of the
* created function and the array of arguments provided to the created
* function much like [Function#apply](http://es5.github.io/#x15.3.4.3).
*
* @static
* @memberOf _
* @category Function
* @param {Function} func The function to spread arguments over.
* @returns {*} Returns the new function.
* @example
*
* var spread = _.spread(function(who, what) {
* return who + ' says ' + what;
* });
*
* spread(['Fred', 'hello']);
* // => 'Fred says hello'
*
* // with a Promise
* var numbers = Promise.all([
* Promise.resolve(40),
* Promise.resolve(36)
* ]);
*
* var add = function(x, y) {
* return x + y;
* };
*
* numbers.then(_.spread(add));
* // => a Promise of 76
*/
function spread(func) {
if (typeof func != 'function') {
throw new TypeError(FUNC_ERROR_TEXT);
}
return function(array) {
return func.apply(this, array);
};
}
/**
* Creates a function that only invokes `func` at most once per every `wait`
* milliseconds. The created function comes with a `cancel` method to cancel
* delayed invocations. Provide an options object to indicate that `func`
* should be invoked on the leading and/or trailing edge of the `wait` timeout.
* Subsequent calls to the throttled function return the result of the last
* `func` call.
*
* **Note:** If `leading` and `trailing` options are `true`, `func` is invoked
* on the trailing edge of the timeout only if the the throttled function is
* invoked more than once during the `wait` timeout.
*
* See [David Corbacho's article](http://drupalmotion.com/article/debounce-and-throttle-visual-explanation)
* for details over the differences between `_.throttle` and `_.debounce`.
*
* @static
* @memberOf _
* @category Function
* @param {Function} func The function to throttle.
* @param {number} wait 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('.interactive').on('click', throttled);
*
* // cancel a trailing throttled call
* 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 (options === false) {
leading = false;
} else if (isObject(options)) {
leading = 'leading' in options ? !!options.leading : leading;
trailing = 'trailing' in options ? !!options.trailing : trailing;
}
debounceOptions.leading = leading;
debounceOptions.maxWait = +wait;
debounceOptions.trailing = trailing;
return debounce(func, wait, debounceOptions);
}
/**
* 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 _
* @category Function
* @param {*} value The value to wrap.
* @param {Function} wrapper 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 createWrapper(wrapper, PARTIAL_FLAG, null, [value], []);
}
/*------------------------------------------------------------------------*/
/**
* Creates a clone of `value`. If `isDeep` is `true` nested objects are cloned,
* otherwise they are assigned by reference. If `customizer` is provided it is
* invoked to produce the cloned values. If `customizer` returns `undefined`
* cloning is handled by the method instead. The `customizer` is bound to
* `thisArg` and invoked with two argument; (value [, index|key, object]).
*
* **Note:** This method is loosely based on the structured clone algorithm.
* The enumerable properties of `arguments` objects and objects created by
* constructors other than `Object` are cloned to plain `Object` objects. An
* empty object is returned for uncloneable values such as functions, DOM nodes,
* Maps, Sets, and WeakMaps. See the [HTML5 specification](http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm)
* for more details.
*
* @static
* @memberOf _
* @category Lang
* @param {*} value The value to clone.
* @param {boolean} [isDeep] Specify a deep clone.
* @param {Function} [customizer] The function to customize cloning values.
* @param {*} [thisArg] The `this` binding of `customizer`.
* @returns {*} Returns the cloned value.
* @example
*
* var users = [
* { 'user': 'barney' },
* { 'user': 'fred' }
* ];
*
* var shallow = _.clone(users);
* shallow[0] === users[0];
* // => true
*
* var deep = _.clone(users, true);
* deep[0] === users[0];
* // => false
*
* // using a customizer callback
* var body = _.clone(document.body, function(value) {
* return _.isElement(value) ? value.cloneNode(false) : undefined;
* });
*
* body === document.body
* // => false
* body.nodeName
* // => BODY
* body.childNodes.length;
* // => 0
*/
function clone(value, isDeep, customizer, thisArg) {
// Juggle arguments.
if (typeof isDeep != 'boolean' && isDeep != null) {
thisArg = customizer;
customizer = isIterateeCall(value, isDeep, thisArg) ? null : isDeep;
isDeep = false;
}
customizer = typeof customizer == 'function' && bindCallback(customizer, thisArg, 1);
return baseClone(value, isDeep, customizer);
}
/**
* Creates a deep clone of `value`. If `customizer` is provided it is invoked
* to produce the cloned values. If `customizer` returns `undefined` cloning
* is handled by the method instead. The `customizer` is bound to `thisArg`
* and invoked with two argument; (value [, index|key, object]).
*
* **Note:** This method is loosely based on the structured clone algorithm.
* The enumerable properties of `arguments` objects and objects created by
* constructors other than `Object` are cloned to plain `Object` objects. An
* empty object is returned for uncloneable values such as functions, DOM nodes,
* Maps, Sets, and WeakMaps. See the [HTML5 specification](http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm)
* for more details.
*
* @static
* @memberOf _
* @category Lang
* @param {*} value The value to deep clone.
* @param {Function} [customizer] The function to customize cloning values.
* @param {*} [thisArg] The `this` binding of `customizer`.
* @returns {*} Returns the deep cloned value.
* @example
*
* var users = [
* { 'user': 'barney' },
* { 'user': 'fred' }
* ];
*
* var deep = _.cloneDeep(users);
* deep[0] === users[0];
* // => false
*
* // using a customizer callback
* var el = _.cloneDeep(document.body, function(value) {
* return _.isElement(value) ? value.cloneNode(true) : undefined;
* });
*
* body === document.body
* // => false
* body.nodeName
* // => BODY
* body.childNodes.length;
* // => 20
*/
function cloneDeep(value, customizer, thisArg) {
customizer = typeof customizer == 'function' && bindCallback(customizer, thisArg, 1);
return baseClone(value, true, customizer);
}
/**
* Checks if `value` is classified as an `arguments` object.
*
* @static
* @memberOf _
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
* @example
*
* (function() { return _.isArguments(arguments); })();
* // => true
*
* _.isArguments([1, 2, 3]);
* // => false
*/
function isArguments(value) {
var length = isObjectLike(value) ? value.length : undefined;
return (isLength(length) && objToString.call(value) == argsTag) || false;
}
/**
* Checks if `value` is classified as an `Array` object.
*
* @static
* @memberOf _
* @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
*
* (function() { return _.isArray(arguments); })();
* // => false
*/
var isArray = nativeIsArray || function(value) {
return (isObjectLike(value) && isLength(value.length) && objToString.call(value) == arrayTag) || false;
};
/**
* Checks if `value` is classified as a boolean primitive or object.
*
* @static
* @memberOf _
* @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) && objToString.call(value) == boolTag) || false;
}
/**
* Checks if `value` is classified as a `Date` object.
*
* @static
* @memberOf _
* @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) && objToString.call(value) == dateTag) || false;
}
/**
* Checks if `value` is a DOM element.
*
* @static
* @memberOf _
* @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) &&
objToString.call(value).indexOf('Element') > -1) || false;
}
// Fallback for environments without DOM support.
if (!support.dom) {
isElement = function(value) {
return (value && value.nodeType === 1 && isObjectLike(value) && !isPlainObject(value)) || false;
};
}
/**
* Checks if a value is empty. A value is considered empty unless it is an
* `arguments` object, array, string, or jQuery-like collection with a length
* greater than `0` or an object with own enumerable properties.
*
* @static
* @memberOf _
* @category Lang
* @param {Array|Object|string} value The value to inspect.
* @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 (value == null) {
return true;
}
var length = value.length;
if (isLength(length) && (isArray(value) || isString(value) || isArguments(value) ||
(isObjectLike(value) && isFunction(value.splice)))) {
return !length;
}
return !keys(value).length;
}
/**
* Performs a deep comparison between two values to determine if they are
* equivalent. If `customizer` is provided it is invoked to compare values.
* If `customizer` returns `undefined` comparisons are handled by the method
* instead. The `customizer` is bound to `thisArg` and invoked with three
* arguments; (value, other [, index|key]).
*
* **Note:** This method supports comparing arrays, booleans, `Date` objects,
* numbers, `Object` objects, regexes, and strings. Objects are compared by
* their own, not inherited, enumerable properties. Functions and DOM nodes
* are **not** supported. Provide a customizer function to extend support
* for comparing other values.
*
* @static
* @memberOf _
* @category Lang
* @param {*} value The value to compare.
* @param {*} other The other value to compare.
* @param {Function} [customizer] The function to customize comparing values.
* @param {*} [thisArg] The `this` binding of `customizer`.
* @returns {boolean} Returns `true` if the values are equivalent, else `false`.
* @example
*
* var object = { 'user': 'fred' };
* var other = { 'user': 'fred' };
*
* object == other;
* // => false
*
* _.isEqual(object, other);
* // => true
*
* // using a customizer callback
* var array = ['hello', 'goodbye'];
* var other = ['hi', 'goodbye'];
*
* _.isEqual(array, other, function(value, other) {
* return _.every([value, other], RegExp.prototype.test, /^h(?:i|ello)$/) || undefined;
* });
* // => true
*/
function isEqual(value, other, customizer, thisArg) {
customizer = typeof customizer == 'function' && bindCallback(customizer, thisArg, 3);
if (!customizer && isStrictComparable(value) && isStrictComparable(other)) {
return value === other;
}
var result = customizer ? customizer(value, other) : undefined;
return typeof result == 'undefined' ? baseIsEqual(value, other, customizer) : !!result;
}
/**
* Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,
* `SyntaxError`, `TypeError`, or `URIError` object.
*
* @static
* @memberOf _
* @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) {
return (isObjectLike(value) && typeof value.message == 'string' && objToString.call(value) == errorTag) || false;
}
/**
* Checks if `value` is a finite primitive number.
*
* **Note:** This method is based on ES `Number.isFinite`. See the
* [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-number.isfinite)
* for more details.
*
* @static
* @memberOf _
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is a finite number, else `false`.
* @example
*
* _.isFinite(10);
* // => true
*
* _.isFinite('10');
* // => false
*
* _.isFinite(true);
* // => false
*
* _.isFinite(Object(10));
* // => false
*
* _.isFinite(Infinity);
* // => false
*/
var isFinite = nativeNumIsFinite || function(value) {
return typeof value == 'number' && nativeIsFinite(value);
};
/**
* Checks if `value` is classified as a `Function` object.
*
* @static
* @memberOf _
* @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) {
// Avoid a Chakra JIT bug in compatibility modes of IE 11.
// See https://github.com/jashkenas/underscore/issues/1621 for more details.
return typeof value == 'function' || false;
}
// Fallback for environments that return incorrect `typeof` operator results.
if (isFunction(/x/) || (Uint8Array && !isFunction(Uint8Array))) {
isFunction = function(value) {
// The use of `Object#toString` avoids issues with the `typeof` operator
// in older versions of Chrome and Safari which return 'function' for regexes
// and Safari 8 equivalents which return 'object' for typed array constructors.
return objToString.call(value) == funcTag;
};
}
/**
* Checks if `value` is the language type of `Object`.
* (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
*
* **Note:** See the [ES5 spec](https://es5.github.io/#x8) for more details.
*
* @static
* @memberOf _
* @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(1);
* // => false
*/
function isObject(value) {
// Avoid a V8 JIT bug in Chrome 19-20.
// See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
var type = typeof value;
return type == 'function' || (value && type == 'object') || false;
}
/**
* Performs a deep comparison between `object` and `source` to determine if
* `object` contains equivalent property values. If `customizer` is provided
* it is invoked to compare values. If `customizer` returns `undefined`
* comparisons are handled by the method instead. The `customizer` is bound
* to `thisArg` and invoked with three arguments; (value, other, index|key).
*
* **Note:** This method supports comparing properties of arrays, booleans,
* `Date` objects, numbers, `Object` objects, regexes, and strings. Functions
* and DOM nodes are **not** supported. Provide a customizer function to extend
* support for comparing other values.
*
* @static
* @memberOf _
* @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 comparing values.
* @param {*} [thisArg] The `this` binding of `customizer`.
* @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
*
* // using a customizer callback
* var object = { 'greeting': 'hello' };
* var source = { 'greeting': 'hi' };
*
* _.isMatch(object, source, function(value, other) {
* return _.every([value, other], RegExp.prototype.test, /^h(?:i|ello)$/) || undefined;
* });
* // => true
*/
function isMatch(object, source, customizer, thisArg) {
var props = keys(source),
length = props.length;
customizer = typeof customizer == 'function' && bindCallback(customizer, thisArg, 3);
if (!customizer && length == 1) {
var key = props[0],
value = source[key];
if (isStrictComparable(value)) {
return object != null && value === object[key] && hasOwnProperty.call(object, key);
}
}
var values = Array(length),
strictCompareFlags = Array(length);
while (length--) {
value = values[length] = source[props[length]];
strictCompareFlags[length] = isStrictComparable(value);
}
return baseIsMatch(object, props, values, strictCompareFlags, customizer);
}
/**
* Checks if `value` is `NaN`.
*
* **Note:** This method is not the same as native `isNaN` which returns `true`
* for `undefined` and other non-numeric values. See the [ES5 spec](https://es5.github.io/#x15.1.2.4)
* for more details.
*
* @static
* @memberOf _
* @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 host objects in IE.
return isNumber(value) && value != +value;
}
/**
* Checks if `value` is a native function.
*
* @static
* @memberOf _
* @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 (value == null) {
return false;
}
if (objToString.call(value) == funcTag) {
return reNative.test(fnToString.call(value));
}
return (isObjectLike(value) && reHostCtor.test(value)) || false;
}
/**
* Checks if `value` is `null`.
*
* @static
* @memberOf _
* @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 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 _
* @category Lang
* @param {*} value The value to check.
* @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
* @example
*
* _.isNumber(8.4);
* // => true
*
* _.isNumber(NaN);
* // => true
*
* _.isNumber('8.4');
* // => false
*/
function isNumber(value) {
return typeof value == 'number' || (isObjectLike(value) && objToString.call(value) == numberTag) || false;
}
/**
* Checks if `value` is a plain object, that is, an object created by the
* `Object` constructor or one with a `[[Prototype]]` of `null`.
*
* **Note:** This method assumes objects created by the `Object` constructor
* have no inherited enumerable properties.
*
* @static
* @memberOf _
* @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
*/
var isPlainObject = !getPrototypeOf ? shimIsPlainObject : function(value) {
if (!(value && objToString.call(value) == objectTag)) {
return false;
}
var valueOf = value.valueOf,
objProto = isNative(valueOf) && (objProto = getPrototypeOf(valueOf)) && getPrototypeOf(objProto);
return objProto
? (value == objProto || getPrototypeOf(value) == objProto)
: shimIsPlainObject(value);
};
/**
* Checks if `value` is classified as a `RegExp` object.
*
* @static
* @memberOf _
* @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 (isObjectLike(value) && objToString.call(value) == regexpTag) || false;
}
/**
* Checks if `value` is classified as a `String` primitive or object.
*
* @static
* @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' || (isObjectLike(value) && objToString.call(value) == stringTag) || false;
}
/**
* Checks if `value` is classified as a typed array.
*
* @static
* @memberOf _
* @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[objToString.call(value)]) || false;
}
/**
* Checks if `value` is `undefined`.
*
* @static
* @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 typeof value == 'undefined';
}
/**
* Converts `value` to an array.
*
* @static
* @memberOf _
* @category Lang
* @param {*} value The value to convert.
* @returns {Array} Returns the converted array.
* @example
*
* (function() { return _.toArray(arguments).slice(1); })(1, 2, 3);
* // => [2, 3]
*/
function toArray(value) {
var length = value ? value.length : 0;
if (!isLength(length)) {
return values(value);
}
if (!length) {
return [];
}
return arrayCopy(value);
}
/**
* Converts `value` to a plain object flattening inherited enumerable
* properties of `value` to own properties of the plain object.
*
* @static
* @memberOf _
* @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 baseCopy(value, keysIn(value));
}
/*------------------------------------------------------------------------*/
/**
* Assigns own enumerable properties of source object(s) to the destination
* object. Subsequent sources overwrite property assignments of previous sources.
* If `customizer` is provided it is invoked to produce the assigned values.
* The `customizer` is bound to `thisArg` and invoked with five arguments;
* (objectValue, sourceValue, key, object, source).
*
* @static
* @memberOf _
* @alias extend
* @category Object
* @param {Object} object The destination object.
* @param {...Object} [sources] The source objects.
* @param {Function} [customizer] The function to customize assigning values.
* @param {*} [thisArg] The `this` binding of `customizer`.
* @returns {Object} Returns `object`.
* @example
*
* _.assign({ 'user': 'barney' }, { 'age': 40 }, { 'user': 'fred' });
* // => { 'user': 'fred', 'age': 40 }
*
* // using a customizer callback
* var defaults = _.partialRight(_.assign, function(value, other) {
* return typeof value == 'undefined' ? other : value;
* });
*
* defaults({ 'user': 'barney' }, { 'age': 36 }, { 'user': 'fred' });
* // => { 'user': 'barney', 'age': 36 }
*/
var assign = createAssigner(baseAssign);
/**
* Creates an object that inherits from the given `prototype` object. If a
* `properties` object is provided its own enumerable properties are assigned
* to the created object.
*
* @static
* @memberOf _
* @category Object
* @param {Object} prototype The object to inherit from.
* @param {Object} [properties] The properties to assign to the object.
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
* @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, guard) {
var result = baseCreate(prototype);
if (guard && isIterateeCall(prototype, properties, guard)) {
properties = null;
}
return properties ? baseCopy(properties, result, keys(properties)) : result;
}
/**
* Assigns own enumerable properties of source object(s) to the destination
* object for all destination properties that resolve to `undefined`. Once a
* property is set, additional defaults of the same property are ignored.
*
* @static
* @memberOf _
* @category Object
* @param {Object} object The destination object.
* @param {...Object} [sources] The source objects.
* @returns {Object} Returns `object`.
* @example
*
* _.defaults({ 'user': 'barney' }, { 'age': 36 }, { 'user': 'fred' });
* // => { 'user': 'barney', 'age': 36 }
*/
function defaults(object) {
if (object == null) {
return object;
}
var args = arrayCopy(arguments);
args.push(assignDefaults);
return assign.apply(undefined, args);
}
/**
* This method is like `_.findIndex` except that it returns the key of the
* first element `predicate` returns truthy for, instead of the element itself.
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* @static
* @memberOf _
* @category Object
* @param {Object} object The object to search.
* @param {Function|Object|string} [predicate=_.identity] The function invoked
* per iteration. If a property name or object is provided it is used to
* create a "_.property" or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `predicate`.
* @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(chr) { return chr.age < 40; });
* // => 'barney' (iteration order is not guaranteed)
*
* // using the "_.matches" callback shorthand
* _.findKey(users, { 'age': 1, 'active': true });
* // => 'pebbles'
*
* // using the "_.matchesProperty" callback shorthand
* _.findKey(users, 'active', false);
* // => 'fred'
*
* // using the "_.property" callback shorthand
* _.findKey(users, 'active');
* // => 'barney'
*/
function findKey(object, predicate, thisArg) {
predicate = getCallback(predicate, thisArg, 3);
return baseFind(object, predicate, baseForOwn, true);
}
/**
* This method is like `_.findKey` except that it iterates over elements of
* a collection in the opposite order.
*
* If a property name is provided for `predicate` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `predicate` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* @static
* @memberOf _
* @category Object
* @param {Object} object The object to search.
* @param {Function|Object|string} [predicate=_.identity] The function invoked
* per iteration. If a property name or object is provided it is used to
* create a "_.property" or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `predicate`.
* @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(chr) { return chr.age < 40; });
* // => returns `pebbles` assuming `_.findKey` returns `barney`
*
* // using the "_.matches" callback shorthand
* _.findLastKey(users, { 'age': 36, 'active': true });
* // => 'barney'
*
* // using the "_.matchesProperty" callback shorthand
* _.findLastKey(users, 'active', false);
* // => 'fred'
*
* // using the "_.property" callback shorthand
* _.findLastKey(users, 'active');
* // => 'pebbles'
*/
function findLastKey(object, predicate, thisArg) {
predicate = getCallback(predicate, thisArg, 3);
return baseFind(object, predicate, baseForOwnRight, true);
}
/**
* Iterates over own and inherited enumerable properties of an object invoking
* `iteratee` for each property. The `iteratee` is bound to `thisArg` and invoked
* with three arguments; (value, key, object). Iterator functions may exit
* iteration early by explicitly returning `false`.
*
* @static
* @memberOf _
* @category Object
* @param {Object} object The object to iterate over.
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
* @param {*} [thisArg] The `this` binding of `iteratee`.
* @returns {Object} Returns `object`.
* @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', and 'c' (iteration order is not guaranteed)
*/
function forIn(object, iteratee, thisArg) {
if (typeof iteratee != 'function' || typeof thisArg != 'undefined') {
iteratee = bindCallback(iteratee, thisArg, 3);
}
return baseFor(object, iteratee, keysIn);
}
/**
* This method is like `_.forIn` except that it iterates over properties of
* `object` in the opposite order.
*
* @static
* @memberOf _
* @category Object
* @param {Object} object The object to iterate over.
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
* @param {*} [thisArg] The `this` binding of `iteratee`.
* @returns {Object} Returns `object`.
* @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', and 'a' assuming `_.forIn ` logs 'a', 'b', and 'c'
*/
function forInRight(object, iteratee, thisArg) {
iteratee = bindCallback(iteratee, thisArg, 3);
return baseForRight(object, iteratee, keysIn);
}
/**
* Iterates over own enumerable properties of an object invoking `iteratee`
* for each property. The `iteratee` is bound to `thisArg` and invoked with
* three arguments; (value, key, object). Iterator functions may exit iteration
* early by explicitly returning `false`.
*
* @static
* @memberOf _
* @category Object
* @param {Object} object The object to iterate over.
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
* @param {*} [thisArg] The `this` binding of `iteratee`.
* @returns {Object} Returns `object`.
* @example
*
* _.forOwn({ '0': 'zero', '1': 'one', 'length': 2 }, function(n, key) {
* console.log(key);
* });
* // => logs '0', '1', and 'length' (iteration order is not guaranteed)
*/
function forOwn(object, iteratee, thisArg) {
if (typeof iteratee != 'function' || typeof thisArg != 'undefined') {
iteratee = bindCallback(iteratee, thisArg, 3);
}
return baseForOwn(object, iteratee);
}
/**
* This method is like `_.forOwn` except that it iterates over properties of
* `object` in the opposite order.
*
* @static
* @memberOf _
* @category Object
* @param {Object} object The object to iterate over.
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
* @param {*} [thisArg] The `this` binding of `iteratee`.
* @returns {Object} Returns `object`.
* @example
*
* _.forOwnRight({ '0': 'zero', '1': 'one', 'length': 2 }, function(n, key) {
* console.log(key);
* });
* // => logs 'length', '1', and '0' assuming `_.forOwn` logs '0', '1', and 'length'
*/
function forOwnRight(object, iteratee, thisArg) {
iteratee = bindCallback(iteratee, thisArg, 3);
return baseForRight(object, iteratee, keys);
}
/**
* Creates an array of function property names from all enumerable properties,
* own and inherited, of `object`.
*
* @static
* @memberOf _
* @alias methods
* @category Object
* @param {Object} object The object to inspect.
* @returns {Array} Returns the new array of property names.
* @example
*
* _.functions(_);
* // => ['all', 'any', 'bind', ...]
*/
function functions(object) {
return baseFunctions(object, keysIn(object));
}
/**
* Checks if `key` exists as a direct property of `object` instead of an
* inherited property.
*
* @static
* @memberOf _
* @category Object
* @param {Object} object The object to inspect.
* @param {string} key The key to check.
* @returns {boolean} Returns `true` if `key` is a direct property, else `false`.
* @example
*
* _.has({ 'a': 1, 'b': 2, 'c': 3 }, 'b');
* // => true
*/
function has(object, key) {
return object ? hasOwnProperty.call(object, key) : false;
}
/**
* 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 unless `multiValue` is `true`.
*
* @static
* @memberOf _
* @category Object
* @param {Object} object The object to invert.
* @param {boolean} [multiValue] Allow multiple values per key.
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
* @returns {Object} Returns the new inverted object.
* @example
*
* _.invert({ 'first': 'fred', 'second': 'barney' });
* // => { 'fred': 'first', 'barney': 'second' }
*
* // without `multiValue`
* _.invert({ 'first': 'fred', 'second': 'barney', 'third': 'fred' });
* // => { 'fred': 'third', 'barney': 'second' }
*
* // with `multiValue`
* _.invert({ 'first': 'fred', 'second': 'barney', 'third': 'fred' }, true);
* // => { 'fred': ['first', 'third'], 'barney': ['second'] }
*/
function invert(object, multiValue, guard) {
if (guard && isIterateeCall(object, multiValue, guard)) {
multiValue = null;
}
var index = -1,
props = keys(object),
length = props.length,
result = {};
while (++index < length) {
var key = props[index],
value = object[key];
if (multiValue) {
if (hasOwnProperty.call(result, value)) {
result[value].push(key);
} else {
result[value] = [key];
}
}
else {
result[value] = key;
}
}
return result;
}
/**
* Creates an array of the own enumerable property names of `object`.
*
* **Note:** Non-object values are coerced to objects. See the
* [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.keys)
* for more details.
*
* @static
* @memberOf _
* @category Object
* @param {Object} object The object to inspect.
* @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']
*/
var keys = !nativeKeys ? shimKeys : function(object) {
if (object) {
var Ctor = object.constructor,
length = object.length;
}
if ((typeof Ctor == 'function' && Ctor.prototype === object) ||
(typeof object != 'function' && (length && isLength(length)))) {
return shimKeys(object);
}
return isObject(object) ? nativeKeys(object) : [];
};
/**
* Creates an array of the own and inherited enumerable property names of `object`.
*
* **Note:** Non-object values are coerced to objects.
*
* @static
* @memberOf _
* @category Object
* @param {Object} object The object to inspect.
* @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) {
if (object == null) {
return [];
}
if (!isObject(object)) {
object = Object(object);
}
var length = object.length;
length = (length && isLength(length) &&
(isArray(object) || (support.nonEnumArgs && isArguments(object))) && length) || 0;
var Ctor = object.constructor,
index = -1,
isProto = typeof Ctor == 'function' && Ctor.prototype === object,
result = Array(length),
skipIndexes = length > 0;
while (++index < length) {
result[index] = (index + '');
}
for (var key in object) {
if (!(skipIndexes && isIndex(key, length)) &&
!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
result.push(key);
}
}
return result;
}
/**
* Creates an object with the same keys as `object` and values generated by
* running each own enumerable property of `object` through `iteratee`. The
* iteratee function is bound to `thisArg` and invoked with three arguments;
* (value, key, object).
*
* If a property name is provided for `iteratee` the created "_.property"
* style callback returns the property value of the given element.
*
* If value is also provided for `thisArg` the created "_.matchesProperty"
* style callback returns `true` for elements that have a matching property
* value, else `false`.
*
* If an object is provided for `iteratee` the created "_.matches" style
* callback returns `true` for elements that have the properties of the given
* object, else `false`.
*
* @static
* @memberOf _
* @category Object
* @param {Object} object The object to iterate over.
* @param {Function|Object|string} [iteratee=_.identity] The function invoked
* per iteration. If a property name or object is provided it is used to
* create a "_.property" or "_.matches" style callback respectively.
* @param {*} [thisArg] The `this` binding of `iteratee`.
* @returns {Object} Returns the new mapped object.
* @example
*
* _.mapValues({ 'a': 1, 'b': 2, 'c': 3} , function(n) { return n * 3; });
* // => { 'a': 3, 'b': 6, 'c': 9 }
*
* var users = {
* 'fred': { 'user': 'fred', 'age': 40 },
* 'pebbles': { 'user': 'pebbles', 'age': 1 }
* };
*
* // using the "_.property" callback shorthand
* _.mapValues(users, 'age');
* // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
*/
function mapValues(object, iteratee, thisArg) {
var result = {};
iteratee = getCallback(iteratee, thisArg, 3);
baseForOwn(object, function(value, key, object) {
result[key] = iteratee(value, key, object);
});
return result;
}
/**
* Recursively merges own enumerable properties of the source object(s), that
* don't resolve to `undefined` into the destination object. Subsequent sources
* overwrite property assignments of previous sources. If `customizer` is
* provided it 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 bound to `thisArg` and invoked
* with five arguments; (objectValue, sourceValue, key, object, source).
*
* @static
* @memberOf _
* @category Object
* @param {Object} object The destination object.
* @param {...Object} [sources] The source objects.
* @param {Function} [customizer] The function to customize merging properties.
* @param {*} [thisArg] The `this` binding of `customizer`.
* @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 }] }
*
* // using a customizer callback
* var object = {
* 'fruits': ['apple'],
* 'vegetables': ['beet']
* };
*
* var other = {
* 'fruits': ['banana'],
* 'vegetables': ['carrot']
* };
*
* _.merge(object, other, function(a, b) {
* return _.isArray(a) ? a.concat(b) : undefined;
* });
* // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot'] }
*/
var merge = createAssigner(baseMerge);
/**
* The opposite of `_.pick`; this method creates an object composed of the
* own and inherited enumerable properties of `object` that are not omitted.
* Property names may be specified as individual arguments or as arrays of
* property names. If `predicate` is provided it is invoked for each property
* of `object` omitting the properties `predicate` returns truthy for. The
* predicate is bound to `thisArg` and invoked with three arguments;
* (value, key, object).
*
* @static
* @memberOf _
* @category Object
* @param {Object} object The source object.
* @param {Function|...(string|string[])} [predicate] The function invoked per
* iteration or property names to omit, specified as individual property
* names or arrays of property names.
* @param {*} [thisArg] The `this` binding of `predicate`.
* @returns {Object} Returns the new object.
* @example
*
* var object = { 'user': 'fred', 'age': 40 };
*
* _.omit(object, 'age');
* // => { 'user': 'fred' }
*
* _.omit(object, _.isNumber);
* // => { 'user': 'fred' }
*/
function omit(object, predicate, thisArg) {
if (object == null) {
return {};
}
if (typeof predicate != 'function') {
var props = arrayMap(baseFlatten(arguments, false, false, 1), String);
return pickByArray(object, baseDifference(keysIn(object), props));
}
predicate = bindCallback(predicate, thisArg, 3);
return pickByCallback(object, function(value, key, object) {
return !predicate(value, key, object);
});
}
/**
* Creates a two dimensional array of the key-value pairs for `object`,
* e.g. `[[key1, value1], [key2, value2]]`.
*
* @static
* @memberOf _
* @category Object
* @param {Object} object The object to inspect.
* @returns {Array} Returns the new array of key-value pairs.
* @example
*
* _.pairs({ 'barney': 36, 'fred': 40 });
* // => [['barney', 36], ['fred', 40]] (iteration order is not guaranteed)
*/
function pairs(object) {
var index = -1,
props = keys(object),
length = props.length,
result = Array(length);
while (++index < length) {
var key = props[index];
result[index] = [key, object[key]];
}
return result;
}
/**
* Creates an object composed of the picked `object` properties. Property
* names may be specified as individual arguments or as arrays of property
* names. If `predicate` is provided it is invoked for each property of `object`
* picking the properties `predicate` returns truthy for. The predicate is
* bound to `thisArg` and invoked with three arguments; (value, key, object).
*
* @static
* @memberOf _
* @category Object
* @param {Object} object The source object.
* @param {Function|...(string|string[])} [predicate] The function invoked per
* iteration or property names to pick, specified as individual property
* names or arrays of property names.
* @param {*} [thisArg] The `this` binding of `predicate`.
* @returns {Object} Returns the new object.
* @example
*
* var object = { 'user': 'fred', 'age': 40 };
*
* _.pick(object, 'user');
* // => { 'user': 'fred' }
*
* _.pick(object, _.isString);
* // => { 'user': 'fred' }
*/
function pick(object, predicate, thisArg) {
if (object == null) {
return {};
}
return typeof predicate == 'function'
? pickByCallback(object, bindCallback(predicate, thisArg, 3))
: pickByArray(object, baseFlatten(arguments, false, false, 1));
}
/**
* Resolves the value of property `key` on `object`. If the value of `key` is
* a function it is invoked with the `this` binding of `object` and its result
* is returned, else the property value is returned. If the property value is
* `undefined` the `defaultValue` is used in its place.
*
* @static
* @memberOf _
* @category Object
* @param {Object} object The object to query.
* @param {string} key The key of the property to resolve.
* @param {*} [defaultValue] The value returned if the property value
* resolves to `undefined`.
* @returns {*} Returns the resolved value.
* @example
*
* var object = { 'user': 'fred', 'age': _.constant(40) };
*
* _.result(object, 'user');
* // => 'fred'
*
* _.result(object, 'age');
* // => 40
*
* _.result(object, 'status', 'busy');
* // => 'busy'
*
* _.result(object, 'status', _.constant('busy'));
* // => 'busy'
*/
function result(object, key, defaultValue) {
var value = object == null ? undefined : object[key];
if (typeof value == 'undefined') {
value = defaultValue;
}
return isFunction(value) ? value.call(object) : value;
}
/**
* An alternative to `_.reduce`; this method transforms `object` to a new
* `accumulator` object which is the result of running each of its own enumerable
* properties through `iteratee`, with each invocation potentially mutating
* the `accumulator` object. The `iteratee` is bound to `thisArg` and invoked
* with four arguments; (accumulator, value, key, object). Iterator functions
* may exit iteration early by explicitly returning `false`.
*
* @static
* @memberOf _
* @category Object
* @param {Array|Object} object The object to iterate over.
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
* @param {*} [accumulator] The custom accumulator value.
* @param {*} [thisArg] The `this` binding of `iteratee`.
* @returns {*} Returns the accumulated value.
* @example
*
* var squares = _.transform([1, 2, 3, 4, 5, 6], function(result, n) {
* n *= n;
* if (n % 2) {
* return result.push(n) < 3;
* }
* });
* // => [1, 9, 25]
*
* var mapped = _.transform({ 'a': 1, 'b': 2, 'c': 3 }, function(result, n, key) {
* result[key] = n * 3;
* });
* // => { 'a': 3, 'b': 6, 'c': 9 }
*/
function transform(object, iteratee, accumulator, thisArg) {
var isArr = isArray(object) || isTypedArray(object);
iteratee = getCallback(iteratee, thisArg, 4);
if (accumulator == null) {
if (isArr || isObject(object)) {
var Ctor = object.constructor;
if (isArr) {
accumulator = isArray(object) ? new Ctor : [];
} else {
accumulator = baseCreate(isFunction(Ctor) && Ctor.prototype);
}
} else {
accumulator = {};
}
}
(isArr ? arrayEach : baseForOwn)(object, function(value, index, object) {
return iteratee(accumulator, value, index, object);
});
return accumulator;
}
/**
* Creates an array of the own enumerable property values of `object`.
*
* **Note:** Non-object values are coerced to objects.
*
* @static
* @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 baseValues(object, keys(object));
}
/**
* Creates an array of the own and inherited enumerable property values
* of `object`.
*
* **Note:** Non-object values are coerced to objects.
*
* @static
* @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;
*
* _.valuesIn(new Foo);
* // => [1, 2, 3] (iteration order is not guaranteed)
*/
function valuesIn(object) {
return baseValues(object, keysIn(object));
}
/*------------------------------------------------------------------------*/
/**
* Produces a random number between `min` and `max` (inclusive). If only one
* argument is provided a number between `0` and the given number is returned.
* If `floating` is `true`, or either `min` or `max` are floats, a floating-point
* number is returned instead of an integer.
*
* @static
* @memberOf _
* @category Number
* @param {number} [min=0] The minimum possible value.
* @param {number} [max=1] The maximum possible value.
* @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(min, max, floating) {
if (floating && isIterateeCall(min, max, floating)) {
max = floating = null;
}
var noMin = min == null,
noMax = max == null;
if (floating == null) {
if (noMax && typeof min == 'boolean') {
floating = min;
min = 1;
}
else if (typeof max == 'boolean') {
floating = max;
noMax = true;
}
}
if (noMin && noMax) {
max = 1;
noMax = false;
}
min = +min || 0;
if (noMax) {
max = min;
min = 0;
} else {
max = +max || 0;
}
if (floating || min % 1 || max % 1) {
var rand = nativeRandom();
return nativeMin(min + (rand * (max - min + parseFloat('1e-' + ((rand + '').length - 1)))), max);
}
return baseRandom(min, max);
}
/*------------------------------------------------------------------------*/
/**
* Converts `string` to camel case.
* See [Wikipedia](https://en.wikipedia.org/wiki/CamelCase) for more details.
*
* @static
* @memberOf _
* @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 ? (word.charAt(0).toUpperCase() + word.slice(1)) : word);
});
/**
* Capitalizes the first character of `string`.
*
* @static
* @memberOf _
* @category String
* @param {string} [string=''] The string to capitalize.
* @returns {string} Returns the capitalized string.
* @example
*
* _.capitalize('fred');
* // => 'Fred'
*/
function capitalize(string) {
string = baseToString(string);
return string && (string.charAt(0).toUpperCase() + string.slice(1));
}
/**
* Deburrs `string` by converting latin-1 supplementary letters to basic latin letters.
* See [Wikipedia](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)
* for more details.
*
* @static
* @memberOf _
* @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 = baseToString(string);
return string && string.replace(reLatin1, deburrLetter);
}
/**
* Checks if `string` ends with the given target string.
*
* @static
* @memberOf _
* @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 from.
* @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 = baseToString(string);
target = (target + '');
var length = string.length;
position = (typeof position == 'undefined' ? length : nativeMin(position < 0 ? 0 : (+position || 0), length)) - 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 require 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 Internet Explorer < 9, they can break out
* of attribute values or HTML comments. See [#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 to reduce
* XSS vectors. See [Ryan Grove's article](http://wonko.com/post/html-escaping)
* for more details.
*
* @static
* @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) {
// Reset `lastIndex` because in IE < 9 `String#replace` does not.
string = baseToString(string);
return (string && reHasUnescapedHtml.test(string))
? string.replace(reUnescapedHtml, escapeHtmlChar)
: string;
}
/**
* Escapes the `RegExp` special characters "\", "^", "$", ".", "|", "?", "*",
* "+", "(", ")", "[", "]", "{" and "}" in `string`.
*
* @static
* @memberOf _
* @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 = baseToString(string);
return (string && reHasRegExpChars.test(string))
? string.replace(reRegExpChars, '\\$&')
: string;
}
/**
* Converts `string` to kebab case (a.k.a. spinal case).
* See [Wikipedia](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles) for
* more details.
*
* @static
* @memberOf _
* @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();
});
/**
* Pads `string` on the left and right sides if it is shorter then the given
* padding length. The `chars` string may be truncated if the number of padding
* characters can't be evenly divided by the padding length.
*
* @static
* @memberOf _
* @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 = baseToString(string);
length = +length;
var strLength = string.length;
if (strLength >= length || !nativeIsFinite(length)) {
return string;
}
var mid = (length - strLength) / 2,
leftLength = floor(mid),
rightLength = ceil(mid);
chars = createPad('', rightLength, chars);
return chars.slice(0, leftLength) + string + chars;
}
/**
* Pads `string` on the left side if it is shorter then the given padding
* length. The `chars` string may be truncated if the number of padding
* characters exceeds the padding length.
*
* @static
* @memberOf _
* @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
*
* _.padLeft('abc', 6);
* // => ' abc'
*
* _.padLeft('abc', 6, '_-');
* // => '_-_abc'
*
* _.padLeft('abc', 3);
* // => 'abc'
*/
function padLeft(string, length, chars) {
string = baseToString(string);
return string && (createPad(string, length, chars) + string);
}
/**
* Pads `string` on the right side if it is shorter then the given padding
* length. The `chars` string may be truncated if the number of padding
* characters exceeds the padding length.
*
* @static
* @memberOf _
* @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
*
* _.padRight('abc', 6);
* // => 'abc '
*
* _.padRight('abc', 6, '_-');
* // => 'abc_-_'
*
* _.padRight('abc', 3);
* // => 'abc'
*/
function padRight(string, length, chars) {
string = baseToString(string);
return string && (string + createPad(string, length, chars));
}
/**
* 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 of `parseInt`.
* See the [ES5 spec](https://es5.github.io/#E) for more details.
*
* @static
* @memberOf _
* @category String
* @param {string} string The string to convert.
* @param {number} [radix] The radix to interpret `value` by.
* @param- {Object} [guard] Enables use as a callback for functions 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) {
if (guard && isIterateeCall(string, radix, guard)) {
radix = 0;
}
return nativeParseInt(string, radix);
}
// Fallback for environments with pre-ES5 implementations.
if (nativeParseInt(whitespace + '08') != 8) {
parseInt = function(string, radix, guard) {
// Firefox < 21 and Opera < 15 follow ES3 for `parseInt`.
// Chrome fails to trim leading <BOM> whitespace characters.
// See https://code.google.com/p/v8/issues/detail?id=3109 for more details.
if (guard ? isIterateeCall(string, radix, guard) : radix == null) {
radix = 0;
} else if (radix) {
radix = +radix;
}
string = trim(string);
return nativeParseInt(string, radix || (reHexPrefix.test(string) ? 16 : 10));
};
}
/**
* Repeats the given string `n` times.
*
* @static
* @memberOf _
* @category String
* @param {string} [string=''] The string to repeat.
* @param {number} [n=0] The number of times to repeat the string.
* @returns {string} Returns the repeated string.
* @example
*
* _.repeat('*', 3);
* // => '***'
*
* _.repeat('abc', 2);
* // => 'abcabc'
*
* _.repeat('abc', 0);
* // => ''
*/
function repeat(string, n) {
var result = '';
string = baseToString(string);
n = +n;
if (n < 1 || !string || !nativeIsFinite(n)) {
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 = floor(n / 2);
string += string;
} while (n);
return result;
}
/**
* Converts `string` to snake case.
* See [Wikipedia](https://en.wikipedia.org/wiki/Snake_case) for more details.
*
* @static
* @memberOf _
* @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();
});
/**
* Converts `string` to start case.
* See [Wikipedia](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage)
* for more details.
*
* @static
* @memberOf _
* @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 ? ' ' : '') + (word.charAt(0).toUpperCase() + word.slice(1));
});
/**
* Checks if `string` starts with the given target string.
*
* @static
* @memberOf _
* @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 = baseToString(string);
position = position == null ? 0 : nativeMin(position < 0 ? 0 : (+position || 0), string.length);
return string.lastIndexOf(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 provided it takes precedence over `_.templateSettings` values.
*
* **Note:** In the development build `_.template` utilizes sourceURLs for easier debugging.
* See the [HTML5 Rocks article on sourcemaps](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)
* for more details.
*
* 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
* @memberOf _
* @category String
* @param {string} [string=''] The template string.
* @param {Object} [options] The options object.
* @param {RegExp} [options.escape] The HTML "escape" delimiter.
* @param {RegExp} [options.evaluate] The "evaluate" delimiter.
* @param {Object} [options.imports] An object to import into the template as free variables.
* @param {RegExp} [options.interpolate] The "interpolate" delimiter.
* @param {string} [options.sourceURL] The sourceURL of the template's compiled source.
* @param {string} [options.variable] The data object variable name.
* @param- {Object} [otherOptions] Enables the legacy `options` param signature.
* @returns {Function} Returns the compiled template function.
* @example
*
* // using the "interpolate" delimiter to create a compiled template
* var compiled = _.template('hello <%= user %>!');
* compiled({ 'user': 'fred' });
* // => 'hello fred!'
*
* // using the HTML "escape" delimiter to escape data property values
* var compiled = _.template('<b><%- value %></b>');
* compiled({ 'value': '<script>' });
* // => '<b><script></b>'
*
* // using 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>'
*
* // using the internal `print` function in "evaluate" delimiters
* var compiled = _.template('<% print("hello " + user); %>!');
* compiled({ 'user': 'barney' });
* // => 'hello barney!'
*
* // using the ES delimiter as an alternative to the default "interpolate" delimiter
* var compiled = _.template('hello ${ user }!');
* compiled({ 'user': 'pebbles' });
* // => 'hello pebbles!'
*
* // using custom template delimiters
* _.templateSettings.interpolate = /{{([\s\S]+?)}}/g;
* var compiled = _.template('hello {{ user }}!');
* compiled({ 'user': 'mustache' });
* // => 'hello mustache!'
*
* // using backslashes to treat delimiters as plain text
* var compiled = _.template('<%= "\\<%- value %\\>" %>');
* compiled({ 'value': 'ignored' });
* // => '<%- value %>'
*
* // using 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>'
*
* // using 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
*
* // using 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;
* }
*
* // using the `source` property to inline compiled templates for meaningful
* // line numbers in error messages and a stack trace
* fs.writeFileSync(path.join(cwd, 'jst.js'), '\
* var JST = {\
* "main": ' + _.template(mainText).source + '\
* };\
* ');
*/
function template(string, options, otherOptions) {
// 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 (otherOptions && isIterateeCall(string, options, otherOptions)) {
options = otherOptions = null;
}
string = baseToString(string);
options = baseAssign(baseAssign({}, otherOptions || options), settings, assignOwnDefaults);
var imports = baseAssign(baseAssign({}, options.imports), settings.imports, assignOwnDefaults),
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 requires returning the `match`
// string 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;
}
/**
* Removes leading and trailing whitespace or specified characters from `string`.
*
* @static
* @memberOf _
* @category String
* @param {string} [string=''] The string to trim.
* @param {string} [chars=whitespace] The characters to trim.
* @param- {Object} [guard] Enables use as a callback for functions 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) {
var value = string;
string = baseToString(string);
if (!string) {
return string;
}
if (guard ? isIterateeCall(value, chars, guard) : chars == null) {
return string.slice(trimmedLeftIndex(string), trimmedRightIndex(string) + 1);
}
chars = (chars + '');
return string.slice(charsLeftIndex(string, chars), charsRightIndex(string, chars) + 1);
}
/**
* Removes leading whitespace or specified characters from `string`.
*
* @static
* @memberOf _
* @category String
* @param {string} [string=''] The string to trim.
* @param {string} [chars=whitespace] The characters to trim.
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
* @returns {string} Returns the trimmed string.
* @example
*
* _.trimLeft(' abc ');
* // => 'abc '
*
* _.trimLeft('-_-abc-_-', '_-');
* // => 'abc-_-'
*/
function trimLeft(string, chars, guard) {
var value = string;
string = baseToString(string);
if (!string) {
return string;
}
if (guard ? isIterateeCall(value, chars, guard) : chars == null) {
return string.slice(trimmedLeftIndex(string));
}
return string.slice(charsLeftIndex(string, (chars + '')));
}
/**
* Removes trailing whitespace or specified characters from `string`.
*
* @static
* @memberOf _
* @category String
* @param {string} [string=''] The string to trim.
* @param {string} [chars=whitespace] The characters to trim.
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
* @returns {string} Returns the trimmed string.
* @example
*
* _.trimRight(' abc ');
* // => ' abc'
*
* _.trimRight('-_-abc-_-', '_-');
* // => '-_-abc'
*/
function trimRight(string, chars, guard) {
var value = string;
string = baseToString(string);
if (!string) {
return string;
}
if (guard ? isIterateeCall(value, chars, guard) : chars == null) {
return string.slice(0, trimmedRightIndex(string) + 1);
}
return string.slice(0, charsRightIndex(string, (chars + '')) + 1);
}
/**
* Truncates `string` if it is 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 _
* @category String
* @param {string} [string=''] The string to truncate.
* @param {Object|number} [options] The options object or maximum string length.
* @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.
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
* @returns {string} Returns the truncated string.
* @example
*
* _.trunc('hi-diddly-ho there, neighborino');
* // => 'hi-diddly-ho there, neighbo...'
*
* _.trunc('hi-diddly-ho there, neighborino', 24);
* // => 'hi-diddly-ho there, n...'
*
* _.trunc('hi-diddly-ho there, neighborino', { 'length': 24, 'separator': ' ' });
* // => 'hi-diddly-ho there,...'
*
* _.trunc('hi-diddly-ho there, neighborino', { 'length': 24, 'separator': /,? +/ });
* //=> 'hi-diddly-ho there...'
*
* _.trunc('hi-diddly-ho there, neighborino', { 'omission': ' [...]' });
* // => 'hi-diddly-ho there, neig [...]'
*/
function trunc(string, options, guard) {
if (guard && isIterateeCall(string, options, guard)) {
options = null;
}
var length = DEFAULT_TRUNC_LENGTH,
omission = DEFAULT_TRUNC_OMISSION;
if (options != null) {
if (isObject(options)) {
var separator = 'separator' in options ? options.separator : separator;
length = 'length' in options ? +options.length || 0 : length;
omission = 'omission' in options ? baseToString(options.omission) : omission;
} else {
length = +options || 0;
}
}
string = baseToString(string);
if (length >= string.length) {
return string;
}
var end = length - omission.length;
if (end < 1) {
return omission;
}
var result = string.slice(0, end);
if (separator == null) {
return result + omission;
}
if (isRegExp(separator)) {
if (string.slice(end).search(separator)) {
var match,
newEnd,
substring = string.slice(0, end);
if (!separator.global) {
separator = RegExp(separator.source, (reFlags.exec(separator) || '') + 'g');
}
separator.lastIndex = 0;
while ((match = separator.exec(substring))) {
newEnd = match.index;
}
result = result.slice(0, newEnd == null ? end : newEnd);
}
} else if (string.indexOf(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 _
* @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 = baseToString(string);
return (string && reHasEscapedHtml.test(string))
? string.replace(reEscapedHtml, unescapeHtmlChar)
: string;
}
/**
* Splits `string` into an array of its words.
*
* @static
* @memberOf _
* @category String
* @param {string} [string=''] The string to inspect.
* @param {RegExp|string} [pattern] The pattern to match words.
* @param- {Object} [guard] Enables use as a callback for functions 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) {
if (guard && isIterateeCall(string, pattern, guard)) {
pattern = null;
}
string = baseToString(string);
return string.match(pattern || reWords) || [];
}
/*------------------------------------------------------------------------*/
/**
* Attempts to invoke `func`, returning either the result or the caught error
* object. Any additional arguments are provided to `func` when it is invoked.
*
* @static
* @memberOf _
* @category Utility
* @param {*} func The function to attempt.
* @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 = [];
* }
*/
function attempt(func) {
try {
return func.apply(undefined, baseSlice(arguments, 1));
} catch(e) {
return isError(e) ? e : new Error(e);
}
}
/**
* Creates a function that invokes `func` with the `this` binding of `thisArg`
* and arguments of the created function. If `func` is a property name the
* created callback returns the property value for a given element. If `func`
* is an object the created callback returns `true` for elements that contain
* the equivalent object properties, otherwise it returns `false`.
*
* @static
* @memberOf _
* @alias iteratee
* @category Utility
* @param {*} [func=_.identity] The value to convert to a callback.
* @param {*} [thisArg] The `this` binding of `func`.
* @param- {Object} [guard] Enables use as a callback for functions like `_.map`.
* @returns {Function} Returns the callback.
* @example
*
* var users = [
* { 'user': 'barney', 'age': 36 },
* { 'user': 'fred', 'age': 40 }
* ];
*
* // wrap to create custom callback shorthands
* _.callback = _.wrap(_.callback, function(callback, func, thisArg) {
* var match = /^(.+?)__([gl]t)(.+)$/.exec(func);
* if (!match) {
* return callback(func, thisArg);
* }
* return function(object) {
* return match[2] == 'gt' ? object[match[1]] > match[3] : object[match[1]] < match[3];
* };
* });
*
* _.filter(users, 'age__gt36');
* // => [{ 'user': 'fred', 'age': 40 }]
*/
function callback(func, thisArg, guard) {
if (guard && isIterateeCall(func, thisArg, guard)) {
thisArg = null;
}
return isObjectLike(func)
? matches(func)
: baseCallback(func, thisArg);
}
/**
* Creates a function that returns `value`.
*
* @static
* @memberOf _
* @category Utility
* @param {*} value The value to return from the new function.
* @returns {Function} Returns the new function.
* @example
*
* var object = { 'user': 'fred' };
* var getter = _.constant(object);
* getter() === object;
* // => true
*/
function constant(value) {
return function() {
return value;
};
}
/**
* This method returns the first argument provided to it.
*
* @static
* @memberOf _
* @category Utility
* @param {*} value Any value.
* @returns {*} Returns `value`.
* @example
*
* var object = { 'user': 'fred' };
* _.identity(object) === object;
* // => true
*/
function identity(value) {
return value;
}
/**
* Creates a function which performs a deep comparison between a given object
* and `source`, returning `true` if the given object has equivalent property
* values, else `false`.
*
* **Note:** This method supports comparing arrays, booleans, `Date` objects,
* numbers, `Object` objects, regexes, and strings. Objects are compared by
* their own, not inherited, enumerable properties. For comparing a single
* own or inherited property value see `_.matchesProperty`.
*
* @static
* @memberOf _
* @category Utility
* @param {Object} source The object of property values to match.
* @returns {Function} Returns the new 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 which compares the property value of `key` on a given
* object to `value`.
*
* **Note:** This method supports comparing arrays, booleans, `Date` objects,
* numbers, `Object` objects, regexes, and strings. Objects are compared by
* their own, not inherited, enumerable properties.
*
* @static
* @memberOf _
* @category Utility
* @param {string} key The key of the property to get.
* @param {*} value The value to compare.
* @returns {Function} Returns the new function.
* @example
*
* var users = [
* { 'user': 'barney', 'age': 36 },
* { 'user': 'fred', 'age': 40 },
* { 'user': 'pebbles', 'age': 1 }
* ];
*
* var matchFred = _.matchesProperty('user', 'fred');
*
* _.find(users, matchFred);
* // => { 'user': 'fred', 'age': 40 }
*/
function matchesProperty(key, value) {
return baseMatchesProperty(key + '', baseClone(value, true));
}
/**
* Adds all own enumerable function properties of a source object to the
* destination object. If `object` is a function then methods are added to
* its prototype as well.
*
* @static
* @memberOf _
* @category Utility
* @param {Function|Object} [object=this] object 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 the functions added
* are chainable.
* @returns {Function|Object} Returns `object`.
* @example
*
* function vowels(string) {
* return _.filter(string, function(v) {
* return /[aeiou]/i.test(v);
* });
* }
*
* // use `_.runInContext` to avoid potential conflicts (esp. in Node.js)
* var _ = require('lodash').runInContext();
*
* _.mixin({ 'vowels': vowels });
* _.vowels('fred');
* // => ['e']
*
* _('fred').vowels().value();
* // => ['e']
*
* _.mixin({ 'vowels': vowels }, { 'chain': false });
* _('fred').vowels();
* // => ['e']
*/
function mixin(object, source, options) {
if (options == null) {
var isObj = isObject(source),
props = isObj && keys(source),
methodNames = props && props.length && baseFunctions(source, props);
if (!(methodNames ? methodNames.length : isObj)) {
methodNames = false;
options = source;
source = object;
object = this;
}
}
if (!methodNames) {
methodNames = baseFunctions(source, keys(source));
}
var chain = true,
index = -1,
isFunc = isFunction(object),
length = methodNames.length;
if (options === false) {
chain = false;
} else if (isObject(options) && 'chain' in options) {
chain = options.chain;
}
while (++index < length) {
var methodName = methodNames[index],
func = source[methodName];
object[methodName] = func;
if (isFunc) {
object.prototype[methodName] = (function(func) {
return function() {
var chainAll = this.__chain__;
if (chain || chainAll) {
var result = object(this.__wrapped__);
(result.__actions__ = arrayCopy(this.__actions__)).push({ 'func': func, 'args': arguments, 'thisArg': object });
result.__chain__ = chainAll;
return result;
}
var args = [this.value()];
push.apply(args, arguments);
return func.apply(object, args);
};
}(func));
}
}
return object;
}
/**
* Reverts the `_` variable to its previous value and returns a reference to
* the `lodash` function.
*
* @static
* @memberOf _
* @category Utility
* @returns {Function} Returns the `lodash` function.
* @example
*
* var lodash = _.noConflict();
*/
function noConflict() {
context._ = oldDash;
return this;
}
/**
* A no-operation function.
*
* @static
* @memberOf _
* @category Utility
* @example
*
* var object = { 'user': 'fred' };
* _.noop(object) === undefined;
* // => true
*/
function noop() {
// No operation performed.
}
/**
* Creates a function which returns the property value of `key` on a given object.
*
* @static
* @memberOf _
* @category Utility
* @param {string} key The key of the property to get.
* @returns {Function} Returns the new function.
* @example
*
* var users = [
* { 'user': 'fred' },
* { 'user': 'barney' }
* ];
*
* var getName = _.property('user');
*
* _.map(users, getName);
* // => ['fred', barney']
*
* _.pluck(_.sortBy(users, getName), 'user');
* // => ['barney', 'fred']
*/
function property(key) {
return baseProperty(key + '');
}
/**
* The inverse of `_.property`; this method creates a function which returns
* the property value of a given key on `object`.
*
* @static
* @memberOf _
* @category Utility
* @param {Object} object The object to inspect.
* @returns {Function} Returns the new function.
* @example
*
* var object = { 'user': 'fred', 'age': 40, 'active': true };
* _.map(['active', 'user'], _.propertyOf(object));
* // => [true, 'fred']
*
* var object = { 'a': 3, 'b': 1, 'c': 2 };
* _.sortBy(['a', 'b', 'c'], _.propertyOf(object));
* // => ['b', 'c', 'a']
*/
function propertyOf(object) {
return function(key) {
return object == null ? undefined : object[key];
};
}
/**
* Creates an array of numbers (positive and/or negative) progressing from
* `start` up to, but not including, `end`. If `start` is less than `end` a
* zero-length range is created unless a negative `step` is specified.
*
* @static
* @memberOf _
* @category Utility
* @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 new array of numbers.
* @example
*
* _.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);
* // => []
*/
function range(start, end, step) {
if (step && isIterateeCall(start, end, step)) {
end = step = null;
}
start = +start || 0;
step = step == null ? 1 : (+step || 0);
if (end == null) {
end = start;
start = 0;
} else {
end = +end || 0;
}
// Use `Array(length)` so engines like Chakra and V8 avoid slower modes.
// See https://youtu.be/XAqIpGU8ZZk#t=17m25s for more details.
var index = -1,
length = nativeMax(ceil((end - start) / (step || 1)), 0),
result = Array(length);
while (++index < length) {
result[index] = start;
start += step;
}
return result;
}
/**
* Invokes the iteratee function `n` times, returning an array of the results
* of each invocation. The `iteratee` is bound to `thisArg` and invoked with
* one argument; (index).
*
* @static
* @memberOf _
* @category Utility
* @param {number} n The number of times to invoke `iteratee`.
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
* @param {*} [thisArg] The `this` binding of `iteratee`.
* @returns {Array} Returns the array of results.
* @example
*
* var diceRolls = _.times(3, _.partial(_.random, 1, 6, false));
* // => [3, 6, 4]
*
* _.times(3, function(n) { mage.castSpell(n); });
* // => invokes `mage.castSpell(n)` three times with `n` of `0`, `1`, and `2` respectively
*
* _.times(3, function(n) { this.cast(n); }, mage);
* // => also invokes `mage.castSpell(n)` three times
*/
function times(n, iteratee, thisArg) {
n = +n;
// Exit early to avoid a JSC JIT bug in Safari 8
// where `Array(0)` is treated as `Array(1)`.
if (n < 1 || !nativeIsFinite(n)) {
return [];
}
var index = -1,
result = Array(nativeMin(n, MAX_ARRAY_LENGTH));
iteratee = bindCallback(iteratee, thisArg, 1);
while (++index < n) {
if (index < MAX_ARRAY_LENGTH) {
result[index] = iteratee(index);
} else {
iteratee(index);
}
}
return result;
}
/**
* Generates a unique ID. If `prefix` is provided the ID is appended to it.
*
* @static
* @memberOf _
* @category Utility
* @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 baseToString(prefix) + id;
}
/*------------------------------------------------------------------------*/
// Ensure `new LodashWrapper` is an instance of `lodash`.
LodashWrapper.prototype = baseCreate(lodash.prototype);
// Ensure `new LazyWraper` is an instance of `LodashWrapper`
LazyWrapper.prototype = baseCreate(LodashWrapper.prototype);
LazyWrapper.prototype.constructor = LazyWrapper;
// Add functions to the `Map` cache.
MapCache.prototype['delete'] = mapDelete;
MapCache.prototype.get = mapGet;
MapCache.prototype.has = mapHas;
MapCache.prototype.set = mapSet;
// Add functions to the `Set` cache.
SetCache.prototype.push = cachePush;
// Assign cache to `_.memoize`.
memoize.Cache = MapCache;
// Add functions that return wrapped values when chaining.
lodash.after = after;
lodash.ary = ary;
lodash.assign = assign;
lodash.at = at;
lodash.before = before;
lodash.bind = bind;
lodash.bindAll = bindAll;
lodash.bindKey = bindKey;
lodash.callback = callback;
lodash.chain = chain;
lodash.chunk = chunk;
lodash.compact = compact;
lodash.constant = constant;
lodash.countBy = countBy;
lodash.create = create;
lodash.curry = curry;
lodash.curryRight = curryRight;
lodash.debounce = debounce;
lodash.defaults = defaults;
lodash.defer = defer;
lodash.delay = delay;
lodash.difference = difference;
lodash.drop = drop;
lodash.dropRight = dropRight;
lodash.dropRightWhile = dropRightWhile;
lodash.dropWhile = dropWhile;
lodash.fill = fill;
lodash.filter = filter;
lodash.flatten = flatten;
lodash.flattenDeep = flattenDeep;
lodash.flow = flow;
lodash.flowRight = flowRight;
lodash.forEach = forEach;
lodash.forEachRight = forEachRight;
lodash.forIn = forIn;
lodash.forInRight = forInRight;
lodash.forOwn = forOwn;
lodash.forOwnRight = forOwnRight;
lodash.functions = functions;
lodash.groupBy = groupBy;
lodash.indexBy = indexBy;
lodash.initial = initial;
lodash.intersection = intersection;
lodash.invert = invert;
lodash.invoke = invoke;
lodash.keys = keys;
lodash.keysIn = keysIn;
lodash.map = map;
lodash.mapValues = mapValues;
lodash.matches = matches;
lodash.matchesProperty = matchesProperty;
lodash.memoize = memoize;
lodash.merge = merge;
lodash.mixin = mixin;
lodash.negate = negate;
lodash.omit = omit;
lodash.once = once;
lodash.pairs = pairs;
lodash.partial = partial;
lodash.partialRight = partialRight;
lodash.partition = partition;
lodash.pick = pick;
lodash.pluck = pluck;
lodash.property = property;
lodash.propertyOf = propertyOf;
lodash.pull = pull;
lodash.pullAt = pullAt;
lodash.range = range;
lodash.rearg = rearg;
lodash.reject = reject;
lodash.remove = remove;
lodash.rest = rest;
lodash.shuffle = shuffle;
lodash.slice = slice;
lodash.sortBy = sortBy;
lodash.sortByAll = sortByAll;
lodash.spread = spread;
lodash.take = take;
lodash.takeRight = takeRight;
lodash.takeRightWhile = takeRightWhile;
lodash.takeWhile = takeWhile;
lodash.tap = tap;
lodash.throttle = throttle;
lodash.thru = thru;
lodash.times = times;
lodash.toArray = toArray;
lodash.toPlainObject = toPlainObject;
lodash.transform = transform;
lodash.union = union;
lodash.uniq = uniq;
lodash.unzip = unzip;
lodash.values = values;
lodash.valuesIn = valuesIn;
lodash.where = where;
lodash.without = without;
lodash.wrap = wrap;
lodash.xor = xor;
lodash.zip = zip;
lodash.zipObject = zipObject;
// Add aliases.
lodash.backflow = flowRight;
lodash.collect = map;
lodash.compose = flowRight;
lodash.each = forEach;
lodash.eachRight = forEachRight;
lodash.extend = assign;
lodash.iteratee = callback;
lodash.methods = functions;
lodash.object = zipObject;
lodash.select = filter;
lodash.tail = rest;
lodash.unique = uniq;
// Add functions to `lodash.prototype`.
mixin(lodash, lodash);
/*------------------------------------------------------------------------*/
// Add functions that return unwrapped values when chaining.
lodash.attempt = attempt;
lodash.camelCase = camelCase;
lodash.capitalize = capitalize;
lodash.clone = clone;
lodash.cloneDeep = cloneDeep;
lodash.deburr = deburr;
lodash.endsWith = endsWith;
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.findWhere = findWhere;
lodash.first = first;
lodash.has = has;
lodash.identity = identity;
lodash.includes = includes;
lodash.indexOf = indexOf;
lodash.isArguments = isArguments;
lodash.isArray = isArray;
lodash.isBoolean = isBoolean;
lodash.isDate = isDate;
lodash.isElement = isElement;
lodash.isEmpty = isEmpty;
lodash.isEqual = isEqual;
lodash.isError = isError;
lodash.isFinite = isFinite;
lodash.isFunction = isFunction;
lodash.isMatch = isMatch;
lodash.isNaN = isNaN;
lodash.isNative = isNative;
lodash.isNull = isNull;
lodash.isNumber = isNumber;
lodash.isObject = isObject;
lodash.isPlainObject = isPlainObject;
lodash.isRegExp = isRegExp;
lodash.isString = isString;
lodash.isTypedArray = isTypedArray;
lodash.isUndefined = isUndefined;
lodash.kebabCase = kebabCase;
lodash.last = last;
lodash.lastIndexOf = lastIndexOf;
lodash.max = max;
lodash.min = min;
lodash.noConflict = noConflict;
lodash.noop = noop;
lodash.now = now;
lodash.pad = pad;
lodash.padLeft = padLeft;
lodash.padRight = padRight;
lodash.parseInt = parseInt;
lodash.random = random;
lodash.reduce = reduce;
lodash.reduceRight = reduceRight;
lodash.repeat = repeat;
lodash.result = result;
lodash.runInContext = runInContext;
lodash.size = size;
lodash.snakeCase = snakeCase;
lodash.some = some;
lodash.sortedIndex = sortedIndex;
lodash.sortedLastIndex = sortedLastIndex;
lodash.startCase = startCase;
lodash.startsWith = startsWith;
lodash.template = template;
lodash.trim = trim;
lodash.trimLeft = trimLeft;
lodash.trimRight = trimRight;
lodash.trunc = trunc;
lodash.unescape = unescape;
lodash.uniqueId = uniqueId;
lodash.words = words;
// Add aliases.
lodash.all = every;
lodash.any = some;
lodash.contains = includes;
lodash.detect = find;
lodash.foldl = reduce;
lodash.foldr = reduceRight;
lodash.head = first;
lodash.include = includes;
lodash.inject = reduce;
mixin(lodash, (function() {
var source = {};
baseForOwn(lodash, function(func, methodName) {
if (!lodash.prototype[methodName]) {
source[methodName] = func;
}
});
return source;
}()), false);
/*------------------------------------------------------------------------*/
// Add functions capable of returning wrapped and unwrapped values when chaining.
lodash.sample = sample;
lodash.prototype.sample = function(n) {
if (!this.__chain__ && n == null) {
return sample(this.value());
}
return this.thru(function(value) {
return sample(value, n);
});
};
/*------------------------------------------------------------------------*/
/**
* 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 that accept an `iteratee` value.
arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) {
var isFilter = index == LAZY_FILTER_FLAG,
isWhile = index == LAZY_WHILE_FLAG;
LazyWrapper.prototype[methodName] = function(iteratee, thisArg) {
var result = this.clone(),
filtered = result.__filtered__,
iteratees = result.__iteratees__ || (result.__iteratees__ = []);
result.__filtered__ = filtered || isFilter || (isWhile && result.__dir__ < 0);
iteratees.push({ 'iteratee': getCallback(iteratee, thisArg, 3), 'type': index });
return result;
};
});
// Add `LazyWrapper` methods for `_.drop` and `_.take` variants.
arrayEach(['drop', 'take'], function(methodName, index) {
var countName = '__' + methodName + 'Count__',
whileName = methodName + 'While';
LazyWrapper.prototype[methodName] = function(n) {
n = n == null ? 1 : nativeMax(floor(n) || 0, 0);
var result = this.clone();
if (result.__filtered__) {
var value = result[countName];
result[countName] = index ? nativeMin(value, n) : (value + n);
} else {
var views = result.__views__ || (result.__views__ = []);
views.push({ 'size': n, 'type': methodName + (result.__dir__ < 0 ? 'Right' : '') });
}
return result;
};
LazyWrapper.prototype[methodName + 'Right'] = function(n) {
return this.reverse()[methodName](n).reverse();
};
LazyWrapper.prototype[methodName + 'RightWhile'] = function(predicate, thisArg) {
return this.reverse()[whileName](predicate, thisArg).reverse();
};
});
// Add `LazyWrapper` methods for `_.first` and `_.last`.
arrayEach(['first', '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 `_.rest`.
arrayEach(['initial', 'rest'], function(methodName, index) {
var dropName = 'drop' + (index ? '' : 'Right');
LazyWrapper.prototype[methodName] = function() {
return this[dropName](1);
};
});
// Add `LazyWrapper` methods for `_.pluck` and `_.where`.
arrayEach(['pluck', 'where'], function(methodName, index) {
var operationName = index ? 'filter' : 'map',
createCallback = index ? baseMatches : baseProperty;
LazyWrapper.prototype[methodName] = function(value) {
return this[operationName](createCallback(value));
};
});
LazyWrapper.prototype.compact = function() {
return this.filter(identity);
};
LazyWrapper.prototype.dropWhile = function(iteratee, thisArg) {
var done;
iteratee = getCallback(iteratee, thisArg, 3);
return this.filter(function(value, index, array) {
return done || (done = !iteratee(value, index, array));
});
};
LazyWrapper.prototype.reject = function(iteratee, thisArg) {
iteratee = getCallback(iteratee, thisArg, 3);
return this.filter(function(value, index, array) {
return !iteratee(value, index, array);
});
};
LazyWrapper.prototype.slice = function(start, end) {
start = start == null ? 0 : (+start || 0);
var result = start < 0 ? this.takeRight(-start) : this.drop(start);
if (typeof end != 'undefined') {
end = (+end || 0);
result = end < 0 ? result.dropRight(-end) : result.take(end - start);
}
return result;
};
LazyWrapper.prototype.toArray = function() {
return this.drop(0);
};
// Add `LazyWrapper` methods to `lodash.prototype`.
baseForOwn(LazyWrapper.prototype, function(func, methodName) {
var lodashFunc = lodash[methodName],
retUnwrapped = /^(?:first|last)$/.test(methodName);
lodash.prototype[methodName] = function() {
var value = this.__wrapped__,
args = arguments,
chainAll = this.__chain__,
isHybrid = !!this.__actions__.length,
isLazy = value instanceof LazyWrapper,
onlyLazy = isLazy && !isHybrid;
if (retUnwrapped && !chainAll) {
return onlyLazy
? func.call(value)
: lodashFunc.call(lodash, this.value());
}
var interceptor = function(value) {
var otherArgs = [value];
push.apply(otherArgs, args);
return lodashFunc.apply(lodash, otherArgs);
};
if (isLazy || isArray(value)) {
var wrapper = onlyLazy ? value : new LazyWrapper(this),
result = func.apply(wrapper, args);
if (!retUnwrapped && (isHybrid || result.__actions__)) {
var actions = result.__actions__ || (result.__actions__ = []);
actions.push({ 'func': thru, 'args': [interceptor], 'thisArg': lodash });
}
return new LodashWrapper(result, chainAll);
}
return this.thru(interceptor);
};
});
// Add `Array.prototype` functions to `lodash.prototype`.
arrayEach(['concat', 'join', 'pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) {
var func = arrayProto[methodName],
chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru',
retUnwrapped = /^(?:join|pop|shift)$/.test(methodName);
lodash.prototype[methodName] = function() {
var args = arguments;
if (retUnwrapped && !this.__chain__) {
return func.apply(this.value(), args);
}
return this[chainName](function(value) {
return func.apply(value, args);
});
};
});
// Add functions to the lazy wrapper.
LazyWrapper.prototype.clone = lazyClone;
LazyWrapper.prototype.reverse = lazyReverse;
LazyWrapper.prototype.value = lazyValue;
// Add chaining functions to the lodash wrapper.
lodash.prototype.chain = wrapperChain;
lodash.prototype.commit = wrapperCommit;
lodash.prototype.plant = wrapperPlant;
lodash.prototype.reverse = wrapperReverse;
lodash.prototype.toString = wrapperToString;
lodash.prototype.run = lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue;
// Add function aliases to the lodash wrapper.
lodash.prototype.collect = lodash.prototype.map;
lodash.prototype.head = lodash.prototype.first;
lodash.prototype.select = lodash.prototype.filter;
lodash.prototype.tail = lodash.prototype.rest;
return lodash;
}
/*--------------------------------------------------------------------------*/
// Export lodash.
var _ = runInContext();
// Some AMD build optimizers like r.js check for condition patterns like the following:
if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
// Expose lodash to the global object when an AMD loader is present to avoid
// errors in cases where lodash is loaded by a script tag and not intended
// as an AMD module. See http://requirejs.org/docs/errors.html#mismatch for
// more details.
root._ = _;
// 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 (freeExports && freeModule) {
// Export for Node.js or RingoJS.
if (moduleExports) {
(freeModule.exports = _)._ = _;
}
// Export for Narwhal or Rhino -require.
else {
freeExports._ = _;
}
}
else {
// Export for a browser or Rhino.
root._ = _;
}
}.call(this));
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{}],8:[function(require,module,exports){
module.exports = require('./lib/pencil')
},{"./lib/pencil":9}],9:[function(require,module,exports){
// Generated by CoffeeScript 1.8.0
(function() {
var Pencil, observable, requestAnimationFrame, _keys,
__hasProp = {}.hasOwnProperty,
__extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; };
observable = function(el) {
var callbacks;
if (el == null) {
el = {};
}
callbacks = {};
el.on = function(events, fn) {
if (typeof fn === 'function') {
events.replace(/\S+/g, function(name, pos) {
(callbacks[name] = callbacks[name] || []).push(fn);
return fn.typed = pos > 0;
});
}
return el;
};
el.off = function(events, fn) {
var cb, i, _i, _len, _ref, _results;
if (events === '*') {
return callbacks = {};
} else if (fn) {
_ref = callbacks[events];
_results = [];
for (i = _i = 0, _len = _ref.length; _i < _len; i = ++_i) {
cb = _ref[i];
if (cb === fn) {
callbacks[events].splice(i, 1);
_results.push(i--);
} else {
_results.push(void 0);
}
}
return _results;
} else {
return events.replace(/\S+/g, function(name) {
return callbacks[name] = [];
});
}
};
el.one = function(name, fn) {
if (fn) {
fn.one = 1;
}
return el.on(name, fn);
};
el.trigger = function(name) {
var args, fn, fns, i, _i, _len;
args = [].slice.call(arguments, 1);
fns = callbacks[name] || [];
for (i = _i = 0, _len = fns.length; _i < _len; i = ++_i) {
fn = fns[i];
if (!fn.busy) {
fn.busy = 1;
fn.apply(el, fn.typed ? [name].concat(args) : args);
if (fn.one) {
fns.splice(i, 1);
i--;
} else if (fns[i] !== fn) {
i--;
}
fn.busy = 0;
}
}
return el;
};
el.listeners = function(name) {
return callbacks[name];
};
return el;
};
requestAnimationFrame = requestAnimationFrame != null ? requestAnimationFrame : function(cb) {
return setTimeout(cb, 1000 / 60);
};
_keys = window._keys = _keys || function(obj) {
var k;
return (function() {
var _results;
_results = [];
for (k in obj) {
_results.push(k);
}
return _results;
})();
};
Pencil = function(canvas, options) {
this.items = [];
this.ctx = canvas.getContext('2d');
this.dirty = true;
this.draw = function(isLoop) {
var item, loopFunc, _i, _len, _ref;
if (isLoop == null) {
isLoop = true;
}
if (this.dirty) {
this.ctx.clearRect(0, 0, canvas.width, canvas.height);
if (typeof isLoop === 'function') {
isLoop(this.ctx);
}
_ref = this.items;
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
item = _ref[_i];
this.ctx.save();
item.loadContext();
item.draw();
this.ctx.restore();
}
this.dirty = false;
}
if (isLoop) {
loopFunc = (function(_this) {
return function() {
return _this.draw(isLoop);
};
})(this);
requestAnimationFrame(loopFunc);
}
return this;
};
this.add = function(item) {
this.items.push(item);
return item.ctx = this.ctx;
};
canvas.addEventListener('click', (function(_this) {
return function(ev) {
return _this.items.forEach(function(item) {
return item.trigger("clickPropagation", ev);
});
};
})(this));
canvas.addEventListener('mousemove', (function(_this) {
return function(ev) {
return _this.items.forEach(function(item) {
return item.trigger("mousemovePropagation", ev);
});
};
})(this));
return this;
};
Pencil.Item = (function() {
function Item() {
this.ctxOptions = {};
this.ctxMethods = {};
observable(this);
this.on('clickPropagation', function(ev) {
if (this.listeners('click')) {
if (this.detection(ev)) {
return this.trigger('click', ev);
}
}
});
this.on("mousemovePropagation", (function(_this) {
return function(ev) {
if (_this.listeners('mouseover' || _this.listeners('mouseleave'))) {
if (_this.detection(ev)) {
if (_this.listeners('mouseover')) {
return _this.trigger('mouseover', ev);
}
} else {
if (_this.listeners('mouseleave')) {
return _this.trigger('mouseleave', ev);
}
}
}
};
})(this));
return this;
}
Item.prototype.draw = function() {
return this;
};
Item.prototype.detection = function(ev) {
return false;
};
Item.prototype.setContext = function(ctxOptions) {
this.ctxOptions = ctxOptions;
this.pencil.dirty = true;
return this;
};
Item.prototype.loadContext = function() {
var k, v, _ref;
_ref = this.ctxOptions;
for (k in _ref) {
v = _ref[k];
this.ctx[k] = v;
}
return this;
};
Item.prototype.by = function(pencil) {
pencil.add(this);
this.pencil = pencil;
this.ctx = pencil.ctx;
this.pencil.dirty = true;
return this;
};
Item.prototype.setPosition = function(x, y) {
this.x = x;
this.y = y;
this.pencil.dirty = true;
return this;
};
Item.prototype.remove = function() {
this.pencil.dirty = true;
return this.pencil.items.splice(this.pencil.items.indexOf(this), 1);
};
return Item;
})();
_keys(CanvasRenderingContext2D.prototype).forEach(function(method) {
return Pencil.Item.prototype[method] = function() {
this.ctxMethods[method] = arguments;
return this;
};
});
Pencil.Circle = (function(_super) {
__extends(Circle, _super);
function Circle(x, y, radius) {
this.x = x;
this.y = y;
this.radius = radius;
Circle.__super__.constructor.call(this);
}
Circle.prototype.draw = function() {
this.ctx.beginPath();
this.ctx.arc(this.x, this.y, this.radius, 0, Math.PI * 2);
this.ctx.closePath();
this.ctx.fill();
this.ctx.stroke();
return this;
};
Circle.prototype.detection = function(ev) {
if (ev.layerX >= (this.x - this.radius) && ev.layerY >= (this.y - this.radius) && ev.layerX <= (this.x + this.radius) && ev.layerY <= (this.y + this.radius)) {
return true;
} else {
return false;
}
};
return Circle;
})(Pencil.Item);
Pencil.Rectangle = (function(_super) {
__extends(Rectangle, _super);
function Rectangle(x, y, width, height) {
this.x = x;
this.y = y;
this.width = width;
this.height = height;
Rectangle.__super__.constructor.call(this);
}
Rectangle.prototype.draw = function() {
this.ctx.beginPath();
this.ctx.rect(this.x, this.y, this.width, this.height);
this.ctx.closePath();
this.ctx.fill();
this.ctx.stroke();
return this;
};
Rectangle.prototype.detection = function(ev) {
if (ev.layerX >= this.x && ev.layerY >= this.y && ev.layerX <= (this.x + this.width) && ev.layerY <= (this.y + this.height)) {
return true;
} else {
return false;
}
};
return Rectangle;
})(Pencil.Item);
Pencil.RegularPolygon = (function(_super) {
__extends(RegularPolygon, _super);
function RegularPolygon(x, y, radius, sides) {
this.x = x;
this.y = y;
this.radius = radius;
this.sides = sides;
RegularPolygon.__super__.constructor.call(this);
}
RegularPolygon.prototype.draw = function() {
var a, i, _i, _ref;
if (this.sides < 3) {
return RegularPolygon.__super__.draw.call(this, this.ctx);
}
a = (Math.PI * 2) / this.sides;
this.ctx.beginPath();
this.ctx.translate(this.x, this.y);
for (i = _i = 1, _ref = this.sides; 1 <= _ref ? _i <= _ref : _i >= _ref; i = 1 <= _ref ? ++_i : --_i) {
this.ctx.lineTo(this.radius * Math.cos(a * i), this.radius * Math.sin(a * i));
}
this.ctx.fill();
this.ctx.stroke();
this.ctx.closePath();
this.ctx.translate(-this.x, -this.y);
return this;
};
RegularPolygon.prototype.detection = function(ev) {
if (ev.layerX >= (this.x - this.radius) && ev.layerY >= (this.y - this.radius) && ev.layerX <= (this.x + this.radius) && ev.layerY <= (this.y + this.radius)) {
return true;
} else {
return false;
}
};
return RegularPolygon;
})(Pencil.Item);
Pencil.Text = (function(_super) {
__extends(Text, _super);
function Text(x, y, text) {
this.x = x;
this.y = y;
this.text = text;
Text.__super__.constructor.call(this);
}
Text.prototype.draw = function() {
this.ctx.beginPath();
this.ctx.fillText(this.text, this.x, this.y);
this.ctx.closePath();
return this;
};
return Text;
})(Pencil.Item);
Pencil.Path = (function(_super) {
__extends(Path, _super);
function Path(points) {
this.points = points;
return Path.__super__.constructor.call(this);
}
Path.prototype.draw = function() {
this.ctx.beginPath();
this.ctx.moveTo(this.points[0].x, this.points[0].y);
this.points.forEach((function(_this) {
return function(point, i) {
return _this.ctx.lineTo(point.x, point.y);
};
})(this));
this.ctx.stroke();
this.ctx.closePath();
return this;
};
return Path;
})(Pencil.Item);
Pencil.Shape = (function(_super) {
__extends(Shape, _super);
function Shape(points) {
this.points = points;
return Shape.__super__.constructor.call(this);
}
Shape.prototype.draw = function() {
this.ctx.beginPath();
this.ctx.moveTo(this.points[0].x, this.points[0].y);
this.points.forEach((function(_this) {
return function(point, i) {
return _this.ctx.lineTo(point.x, point.y);
};
})(this));
this.ctx.fill();
this.ctx.closePath();
return this;
};
return Shape;
})(Pencil.Item);
if (typeof exports === 'object') {
module.exports = Pencil;
} else if (typeof window !== "undefined" && window !== null) {
window.Pencil = Pencil;
}
}).call(this);
},{}],10:[function(require,module,exports){
/**
* VexFlow 1.2.26 built on 2014-12-10.
* Copyright (c) 2010 Mohit Muthanna Cheppudira <mohit@muthanna.com>
*
* http://www.vexflow.com http://github.com/0xfe/vexflow
*/
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
//
// This file implements utility methods used by the rest of the VexFlow
// codebase.
//
// ## JSHint Settings
//
/* global window: false */
/* global document: false */
if (typeof Vex === 'undefined') {
/* global Vex: true */
Vex = function() {};
}
// 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.
Vex.RuntimeError = function(code, message) {
this.code = code;
this.message = message;
};
Vex.RuntimeError.prototype.toString = function() {
return "RuntimeError: " + this.message;
};
// Shortcut method for `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)
destination[property] = source[property];
return destination;
};
// DEPRECATED. Use `Math.min`.
Vex.Min = function(a, b) {
return (a > b) ? b : a;
};
// DEPRECATED. Use `Math.max`.
Vex.Max = function(a, b) {
return (a > b) ? a : b;
};
// 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;
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, color) {
var c = color || "#f55";
ctx.save();
ctx.fillStyle = c;
//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");
};
// Basic classical inheritance helper. Usage:
// ```
// // Vex.Inherit(Child, Parent, {
// // getName: function() {return this.name;},
// // setName: function(name) {this.name = name}
// // });
// //
// // Returns 'Child'.
// ```
Vex.Inherit = (function () {
var F = function () {};
// `C` is Child. `P` is parent. `O` is an object to
// to extend `C` with.
return function (C, P, O) {
F.prototype = P.prototype;
C.prototype = new F();
C.superclass = P.prototype;
C.prototype.constructor = C;
Vex.Merge(C.prototype, O);
return C;
};
}());
// UMD to export Vex.
//
/* global require: false */
/* global define: false */
/* global module: false */
if (typeof require == "function") {
try {
module.exports = Vex;
} catch (e) {}
} else if (typeof define == "function" && define.amd) {
define("Vex", [], function(){ return Vex; });
} else {
(this || window)["Vex"] = Vex;
}
/**
* Vex Flow - Mohit Muthanna <mohit@muthanna.com>
*/
/**
* New namespace.
*/
if (typeof Vex.Flow === 'undefined') {
Vex.Flow = {
/**
* The resolution used for all the rhythm timing in this
* library.
*
* @const
* @type {number}
*/
RESOLUTION: 16384,
/* Kerning (DEPRECATED) */
IsKerned: true
};
}
// Fraction class that represents a rational number
// @author zz85
// @author incompleteopus (modifications)
Vex.Flow.Fraction = (function() {
function Fraction(numerator, denominator) {
this.set(numerator, denominator);
}
/**
* GCD: Find greatest common divisor using Euclidean algorithm
*/
Fraction.GCD = function(a, b) {
if (typeof a !== "number" || typeof b !== "number") {
throw new Vex.RERR("BadArgument", "Invalid numbers: " + a + ", " + b);
}
var t;
while (b !== 0) {
t = b;
b = a % b;
a = t;
}
return a;
};
/**
* LCM: Lowest common multiple
*/
Fraction.LCM = function(a, b) {
return ((a * b) / Fraction.GCD(a, b));
};
/**
* LCMM: Lowest common multiple for more than two numbers
*/
Fraction.LCMM = function(args) {
if (args.length === 0) {
return 0;
} else if (args.length == 1) {
return args[0];
} else if (args.length == 2) {
return Vex.Flow.Fraction.LCM(args[0], args[1]);
} else {
var arg0 = args[0];
args.shift();
return Fraction.LCM(arg0, Vex.Flow.Fraction.LCMM(args));
}
};
Fraction.prototype = {
set: function(numerator, denominator) {
this.numerator = numerator === undefined ? 1 : numerator;
this.denominator = denominator === undefined ? 1 : denominator;
return this;
},
value: function() {
return this.numerator / this.denominator;
},
simplify: function() {
var u = this.numerator;
var d = this.denominator;
var gcd = Vex.Flow.Fraction.GCD(u, d);
u /= gcd;
d /= gcd;
if (d < 0) {
d = -d;
u = -u;
}
return this.set(u, d);
},
add: function(param1, param2) {
var otherNumerator;
var otherDenominator;
if (param1 instanceof Vex.Flow.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 = Vex.Flow.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);
},
subtract: function(param1, param2) {
var otherNumerator;
var otherDenominator;
if (param1 instanceof Vex.Flow.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 = Vex.Flow.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);
},
multiply: function(param1, param2) {
var otherNumerator;
var otherDenominator;
if (param1 instanceof Vex.Flow.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);
},
divide: function(param1, param2) {
var otherNumerator;
var otherDenominator;
if (param1 instanceof Vex.Flow.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.
equals: function(compare) {
var a = Vex.Flow.Fraction.__compareA.copy(compare).simplify();
var b = Vex.Flow.Fraction.__compareB.copy(this).simplify();
return (a.numerator === b.numerator) && (a.denominator === b.denominator);
},
// Greater than operator.
greaterThan: function(compare) {
var a = Vex.Flow.Fraction.__compareB.copy(this);
a.subtract(compare);
return (a.numerator > 0);
},
// Greater than or equals operator.
greaterThanEquals: function(compare) {
var a = Vex.Flow.Fraction.__compareB.copy(this);
a.subtract(compare);
return (a.numerator >= 0);
},
// Less than operator.
lessThan: function(compare) {
return !(this.greaterThanEquals(compare));
},
// Less than or equals operator.
lessThanEquals: function(compare) {
return !(this.greaterThan(compare));
},
// Creates a new copy with this current values.
clone: function() {
return new Vex.Flow.Fraction(this.numerator, this.denominator);
},
// Copies value of another Fraction into itself.
copy: function(copy) {
return this.set(copy.numerator, copy.denominator);
},
// Returns the integer component eg. (4/2) == 2
quotient: function() {
return Math.floor(this.numerator / this.denominator);
},
// Returns the fraction component when reduced to a mixed number
fraction: function() {
return this.numerator % this.denominator;
},
// Returns the absolute value
abs: function() {
this.denominator = Math.abs(this.denominator);
this.numerator = Math.abs(this.numerator);
return this;
},
// Returns a raw string representation
toString: function() {
return this.numerator + '/' + this.denominator;
},
// Returns a simplified string respresentation
toSimplifiedString: function() {
return Vex.Flow.Fraction.__tmp.copy(this).simplify().toString();
},
// Returns string representation in mixed form
toMixedString: function() {
var s = '';
var q = this.quotient();
var f = Vex.Flow.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
parse: function(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);
}
};
// Temporary cached objects
Fraction.__compareA = new Fraction();
Fraction.__compareB = new Fraction();
Fraction.__tmp = new Fraction();
return Fraction;
}());
// Vex Flow Notation
// Mohit Muthanna <mohit@muthanna.com>
//
// Copyright Mohit Muthanna 2010
//
// Requires vex.js.
Vex.Flow.STEM_WIDTH = 1.5;
Vex.Flow.STEM_HEIGHT = 32;
Vex.Flow.STAVE_LINE_THICKNESS = 2;
Vex.Flow.clefProperties = function(clef) {
if (!clef) throw new Vex.RERR("BadArgument", "Invalid clef: " + clef);
var props = Vex.Flow.clefProperties.values[clef];
if (!props) throw new Vex.RERR("BadArgument", "Invalid clef: " + clef);
return props;
};
Vex.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.).
*/
Vex.Flow.keyProperties = function(key, clef, params) {
if (clef === undefined) {
clef = 'treble';
}
var options = {
octave_shift: 0
};
if (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 = Vex.Flow.keyProperties.note_values[k];
if (!value) throw new Vex.RERR("BadArguments", "Invalid key name: " + k);
if (value.octave) pieces[1] = value.octave;
var o = parseInt(pieces[1]);
// Octave_shift is the shift to compensate for clef 8va/8vb.
o += -1 * options.octave_shift;
var base_index = (o * 7) - (4 * 7);
var line = (base_index + value.index) / 2;
line += Vex.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') ? (o * 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 = Vex.Flow.keyProperties.note_glyph[glyph_name];
if (note_glyph) {
code = note_glyph.code;
shift_right = note_glyph.shift_right;
}
}
return {
key: k,
octave: o,
line: line,
int_value: int_value,
accidental: value.accidental,
code: code,
stroke: stroke,
shift_right: shift_right,
displaced: false
};
};
Vex.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
}
};
Vex.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 }
};
Vex.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 = Vex.Flow.integerToNote.table[integer];
if (!noteValue)
throw new Vex.RERR("BadArguments", "Unknown note value for integer: " +
integer);
return noteValue;
};
Vex.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"
};
Vex.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 = Vex.Flow.textWidth(fret.toString());
}
return {
text: fret,
code: glyph,
width: width,
shift_y: shift_y
};
};
Vex.Flow.textWidth = function(text) {
return 6 * text.toString().length;
};
Vex.Flow.articulationCodes = function(artic) {
return Vex.Flow.articulationCodes.articulations[artic];
};
Vex.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
}
};
Vex.Flow.accidentalCodes = function(acc) {
return Vex.Flow.accidentalCodes.accidentals[acc];
};
Vex.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
}
};
Vex.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] }
};
Vex.Flow.ornamentCodes = function(acc) {
return Vex.Flow.ornamentCodes.ornaments[acc];
};
Vex.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,
}
};
Vex.Flow.keySignature = function(spec) {
var keySpec = Vex.Flow.keySignature.keySpecs[spec];
if (!keySpec) {
throw new Vex.RERR("BadKeySignature",
"Bad key signature spec: '" + spec + "'");
}
if (!keySpec.acc) {
return [];
}
var notes = Vex.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;
};
Vex.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}
};
Vex.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))
};
Vex.Flow.keySignature.accidentalList = function(acc) {
if (acc == "b") {
return [2, 0.5, 2.5, 1, 3, 1.5, 3.5];
}
else if (acc == "#") {
return [0, 1.5, -0.5, 1, 2.5, 0.5, 2]; }
};
Vex.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
};
};
Vex.Flow.parseNoteData = function(noteData) {
var duration = noteData.duration;
// Preserve backwards-compatibility
var durationStringData = Vex.Flow.parseNoteDurationString(duration);
if (!durationStringData) {
return null;
}
var ticks = Vex.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 = 0;
if (noteData.dots) {
dots = noteData.dots;
} else {
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'
function sanitizeDuration(duration) {
var alias = Vex.Flow.durationAliases[duration];
if (alias !== undefined) {
duration = alias;
}
if (Vex.Flow.durationToTicks.durations[duration] === undefined) {
throw new Vex.RERR('BadArguments',
'The provided duration is not valid');
}
return duration;
}
// Convert the `duration` to an fraction
Vex.Flow.durationToFraction = function(duration) {
return new Vex.Flow.Fraction().parse(sanitizeDuration(duration));
};
// Convert the `duration` to an number
Vex.Flow.durationToNumber = function(duration) {
return Vex.Flow.durationToFraction(duration).value();
};
// Convert the `duration` to total ticks
Vex.Flow.durationToTicks = function(duration) {
duration = sanitizeDuration(duration);
var ticks = Vex.Flow.durationToTicks.durations[duration];
if (ticks === undefined) {
return null;
}
return ticks;
};
Vex.Flow.durationToTicks.durations = {
"1/2": Vex.Flow.RESOLUTION * 2,
"1": Vex.Flow.RESOLUTION / 1,
"2": Vex.Flow.RESOLUTION / 2,
"4": Vex.Flow.RESOLUTION / 4,
"8": Vex.Flow.RESOLUTION / 8,
"16": Vex.Flow.RESOLUTION / 16,
"32": Vex.Flow.RESOLUTION / 32,
"64": Vex.Flow.RESOLUTION / 64,
"128": Vex.Flow.RESOLUTION / 128,
"256": Vex.Flow.RESOLUTION / 256
};
Vex.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"
};
Vex.Flow.durationToGlyph = function(duration, type) {
var alias = Vex.Flow.durationAliases[duration];
if (alias !== undefined) {
duration = alias;
}
var code = Vex.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);
};
Vex.Flow.durationToGlyph.duration_codes = {
"1/2": {
common: {
head_width: 22,
stem: false,
stem_offset: 0,
flag: false,
stem_up_extension: -Vex.Flow.STEM_HEIGHT,
stem_down_extension: -Vex.Flow.STEM_HEIGHT,
gracenote_stem_up_extension: -Vex.Flow.STEM_HEIGHT,
gracenote_stem_down_extension: -Vex.Flow.STEM_HEIGHT,
tabnote_stem_up_extension: -Vex.Flow.STEM_HEIGHT,
tabnote_stem_down_extension: -Vex.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: -Vex.Flow.STEM_HEIGHT,
stem_down_extension: -Vex.Flow.STEM_HEIGHT,
gracenote_stem_up_extension: -Vex.Flow.STEM_HEIGHT,
gracenote_stem_down_extension: -Vex.Flow.STEM_HEIGHT,
tabnote_stem_up_extension: -Vex.Flow.STEM_HEIGHT,
tabnote_stem_down_extension: -Vex.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
Vex.Flow.TIME4_4 = {
num_beats: 4,
beat_value: 4,
resolution: Vex.Flow.RESOLUTION
};
Vex.Flow.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 69 53 59 50 62 b 65 88 50 79 53 81 b 80 97 72 91 74 93 b 117 156 103 113 112 129 b 117 345 117 161 117 222 l 117 528 l 100 503 l 38 406 b 14 383 24 384 23 383 b -1 398 5 383 -1 390 b 4 415 -1 403 1 409 b 16 437 5 416 10 426 l 72 539 l 100 596 b 121 632 119 631 119 631 b 126 637 122 634 125 635 m 171 -1 l 172 -1 l 170 -1 l 171 -1 m 171 673 l 172 673 l 170 673 l 171 673 "},"v2":{"x_min":-1.359375,"x_max":458.6875,"ha":468,"o":"m 197 648 b 216 648 201 648 208 648 b 258 646 232 648 253 648 b 419 546 333 637 393 599 b 432 489 428 528 432 509 b 356 342 432 440 405 384 b 235 278 322 313 288 295 b 69 170 166 256 107 217 b 69 169 69 170 69 169 b 69 169 69 169 69 169 b 74 173 69 169 72 170 b 209 222 112 204 163 222 b 310 195 247 222 274 215 b 371 179 332 184 352 179 b 396 181 379 179 387 179 b 428 202 409 184 423 194 b 442 212 431 209 436 212 b 458 197 450 212 458 206 b 441 148 458 190 449 165 b 299 44 409 84 353 44 b 288 45 295 44 292 44 b 250 61 274 45 268 49 b 122 99 212 86 164 99 b 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249 152 212 b 103 102 152 145 137 116 b 103 102 103 102 103 102 b 147 94 103 101 132 95 b 153 94 149 94 151 94 b 265 206 219 94 265 141 b 264 226 265 213 265 219 b 147 355 253 299 204 353 b 126 371 133 356 126 362 b 147 388 126 383 132 388 b 254 474 196 391 238 424 b 259 502 258 484 259 494 b 182 592 259 544 228 582 b 156 595 175 595 166 595 b 115 592 142 595 129 594 l 111 591 l 115 588 b 152 524 141 574 152 549 b 92 449 152 491 130 458 b 76 448 87 448 81 448 b -1 530 32 448 -1 488 b 20 581 -1 548 5 566 b 174 648 55 619 108 641 m 204 -1 l 205 -1 l 202 -1 l 204 -1 m 204 673 l 205 673 l 202 673 l 204 673 "},"v4":{"x_min":0,"x_max":468.21875,"ha":478,"o":"m 174 637 b 232 638 175 638 189 638 b 277 638 245 638 259 638 l 378 638 l 381 635 b 389 623 386 632 389 627 b 382 609 389 617 386 613 b 366 589 381 606 372 598 l 313 528 l 245 451 l 209 410 l 155 348 l 84 267 b 59 240 72 252 59 240 b 59 240 59 240 59 240 b 151 238 59 238 68 238 l 242 238 l 242 303 b 243 371 242 369 242 370 b 289 426 245 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616 b 298 505 368 552 338 520 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 314 646 288 648 307 648 b 450 555 374 637 438 594 b 454 530 453 546 454 538 b 375 451 454 485 416 451 b 328 467 359 451 343 455 b 300 526 310 483 300 503 b 352 598 300 557 319 589 b 356 599 355 598 356 599 b 352 602 356 599 355 601 b 288 616 330 612 308 616 b 210 584 257 616 230 605 b 164 433 189 559 174 508 b 160 374 163 415 160 381 b 160 374 160 374 160 374 b 160 374 160 374 160 374 b 168 377 160 374 164 376 b 258 395 200 390 228 395 b 366 367 294 395 328 387 b 475 223 436 333 475 283 b 472 197 475 215 473 206 b 349 65 462 141 419 95 b 259 43 317 51 288 43 b 167 69 230 43 200 52 b 4 290 80 113 20 195 b 0 349 1 309 0 328 b 20 467 0 391 6 433 b 255 648 58 563 155 637 m 269 363 b 257 363 265 363 261 363 b 210 345 236 363 220 356 b 186 226 196 324 186 272 b 187 198 186 216 186 206 b 213 95 191 151 202 112 b 257 76 221 83 238 76 b 270 77 261 76 266 76 b 321 156 299 81 310 99 b 329 229 326 183 329 206 b 321 301 329 252 326 274 b 269 363 311 342 298 359 m 236 -1 l 238 -1 l 235 -1 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545 -519 b 503 -628 545 -587 532 -613 b 477 -635 495 -632 488 -634 l 475 -637 l 477 -638 b 581 -663 510 -655 545 -663 b 671 -637 616 -663 649 -653 b 729 -391 711 -603 729 -534 b 728 -317 729 -367 728 -344 b 623 -117 722 -173 698 -124 b 611 -116 619 -116 615 -116 b 449 -308 528 -116 457 -198 b 432 -328 447 -323 443 -328 b 413 -303 421 -328 419 -326 b 314 -80 392 -215 357 -138 b 274 -37 302 -65 284 -45 l 268 -31 l 268 -367 l 268 -705 l 246 -705 l 225 -705 l 225 0 "},"vb1":{"x_min":78.9375,"x_max":485.921875,"ha":417,"o":"m 362 378 b 378 380 367 380 372 380 b 472 348 415 380 453 367 b 485 315 481 338 485 327 b 462 273 485 298 477 281 b 439 267 454 269 446 267 b 398 290 424 267 409 274 b 344 319 385 309 364 319 b 281 269 315 319 289 301 b 279 262 280 266 279 262 b 276 256 279 260 277 258 b 274 249 276 254 274 251 b 238 127 273 248 257 192 b 201 4 217 61 201 5 b 166 -1 198 -1 200 -1 b 153 -1 163 -1 157 -1 b 141 -1 148 -1 144 -1 b 104 4 106 -1 107 -1 b 104 6 104 5 104 5 b 142 144 104 13 110 34 b 182 278 164 219 181 276 b 183 288 182 281 182 285 b 185 302 185 292 185 298 b 164 330 185 317 176 328 b 159 330 163 330 161 330 b 102 302 140 330 119 320 b 91 294 95 295 93 294 b 88 294 91 294 89 294 b 78 303 83 294 78 298 b 81 312 78 306 78 309 b 200 373 106 347 160 373 b 215 371 205 373 209 371 b 266 335 235 367 254 353 b 269 331 268 333 269 331 b 269 331 269 331 269 331 b 273 335 269 331 270 334 b 362 378 298 359 330 376 "},"vb3":{"x_min":0,"x_max":227.3125,"ha":232,"o":"m 91 213 b 100 215 93 215 96 215 b 227 58 167 215 224 144 b 227 52 227 56 227 54 b 61 -201 227 -43 164 -138 b 29 -216 44 -212 36 -216 b 23 -210 27 -216 24 -213 b 21 -205 21 -208 21 -206 b 34 -192 21 -201 25 -197 b 122 -55 89 -161 122 -106 b 104 6 122 -33 117 -12 l 103 9 l 96 9 b 4 79 57 9 17 38 b 0 112 1 90 0 101 b 91 213 0 163 36 209 "},"vb4":{"x_min":-597.53125,"x_max":596.171875,"ha":608,"o":"m -533 324 b -525 327 -530 326 -528 327 b -504 305 -514 327 -504 317 b -504 305 -504 305 -504 305 b -513 284 -504 299 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// Vex Flow
// Mohit Muthanna <mohit@muthanna.com>
//
// Copyright Mohit Muthanna 2010
//
// Requires a glyph font to be loaded and Vex.Flow.Font to be set.
/**
* 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.
*/
Vex.Flow.renderGlyph = function(ctx, x_pos, y_pos, point, val, nocache) {
var scale = point * 72.0 / (Vex.Flow.Font.resolution * 100.0);
var metrics = Vex.Flow.Glyph.loadMetrics(Vex.Flow.Font, val, !nocache);
Vex.Flow.Glyph.renderOutline(ctx, metrics.outline, scale, x_pos, y_pos);
};
/**
* @constructor
*/
Vex.Flow.Glyph = (function() {
function Glyph(code, point, options) {
this.code = code;
this.point = point;
this.context = null;
this.options = {
cache: true,
font: Vex.Flow.Font
};
this.width = null;
this.metrics = null;
this.x_shift = 0;
this.y_shift = 0;
if (options) this.setOptions(options); else this.reset();
}
Glyph.prototype = {
setOptions: function(options) {
Vex.Merge(this.options, options);
this.reset();
},
setStave: function(stave) { this.stave = stave; return this; },
setXShift: function(x_shift) { this.x_shift = x_shift; return this; },
setYShift: function(y_shift) { this.y_shift = y_shift; return this; },
setContext: function(context) { this.context = context; return this; },
getContext: function() { return this.context; },
reset: function() {
this.metrics = Vex.Flow.Glyph.loadMetrics(this.options.font, this.code,
this.options.cache);
this.scale = this.point * 72 / (this.options.font.resolution * 100);
},
setWidth: function(width) {
this.width = width;
return this;
},
getMetrics: function() {
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.width || (this.metrics.x_max - this.metrics.x_min) * this.scale,
height: this.metrics.ha * this.scale
};
},
render: function(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);
},
renderToStave: function(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);
}
};
/* Static methods used to implement loading / unloading of glyphs */
Glyph.loadMetrics = function(font, code, cache) {
var glyph = font.glyphs[code];
if (!glyph) throw new Vex.RuntimeError("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;
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.RuntimeError("BadGlyph", "Glyph " + this.code +
" has no outline defined.");
}
};
Glyph.renderOutline = function(ctx, outline, scale, x_pos, y_pos) {
var outlineLength = outline.length;
ctx.beginPath();
ctx.moveTo(x_pos, y_pos);
for (var i = 0; i < outlineLength; ) {
var action = outline[i++];
switch(action) {
case 'm':
ctx.moveTo(x_pos + outline[i++] * scale,
y_pos + outline[i++] * -scale);
break;
case 'l':
ctx.lineTo(x_pos + outline[i++] * scale,
y_pos + outline[i++] * -scale);
break;
case 'q':
var cpx = x_pos + outline[i++] * scale;
var cpy = y_pos + outline[i++] * -scale;
ctx.quadraticCurveTo(
x_pos + outline[i++] * scale,
y_pos + outline[i++] * -scale, cpx, cpy);
break;
case 'b':
var x = x_pos + outline[i++] * scale;
var y = y_pos + outline[i++] * -scale;
ctx.bezierCurveTo(
x_pos + outline[i++] * scale, y_pos + outline[i++] * -scale,
x_pos + outline[i++] * scale, y_pos + outline[i++] * -scale,
x, y);
break;
}
}
ctx.fill();
};
return Glyph;
}());
// Vex Flow
// Mohit Muthanna <mohit@muthanna.com>
//
// Copyright Mohit Cheppudira 2010
/** @constructor */
Vex.Flow.Stave = (function() {
function Stave(x, y, width, options) {
if (arguments.length > 0) this.init(x, y, width, options);
}
var THICKNESS = (Vex.Flow.STAVE_LINE_THICKNESS > 1 ?
Vex.Flow.STAVE_LINE_THICKNESS : 0);
Stave.prototype = {
init: function(x, y, width, options) {
this.x = x;
this.y = y;
this.width = width;
this.glyph_start_x = x + 5;
this.glyph_end_x = x + width;
this.start_x = this.glyph_start_x;
this.end_x = this.glyph_end_x;
this.context = null;
this.glyphs = [];
this.end_glyphs = [];
this.modifiers = []; // non-glyph stave items (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",
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 // in staff lines
};
this.bounds = {x: this.x, y: this.y, w: this.width, h: 0};
Vex.Merge(this.options, options);
this.resetLines();
this.modifiers.push(
new Vex.Flow.Barline(Vex.Flow.Barline.type.SINGLE, this.x)); // beg bar
this.modifiers.push(
new Vex.Flow.Barline(Vex.Flow.Barline.type.SINGLE,
this.x + this.width)); // end bar
},
resetLines: function() {
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;
},
setNoteStartX: function(x) { this.start_x = x; return this; },
getNoteStartX: function() {
var start_x = this.start_x;
// Add additional space if left barline is REPEAT_BEGIN and there are other
// start modifiers than barlines
if (this.modifiers[0].barline == Vex.Flow.Barline.type.REPEAT_BEGIN &&
this.modifiers.length > 2) {
start_x += 20;
}
return start_x;
},
getNoteEndX: function() { return this.end_x; },
getTieStartX: function() { return this.start_x; },
getTieEndX: function() { return this.x + this.width; },
setContext: function(context) { this.context = context; return this; },
getContext: function() { return this.context; },
getX: function() { return this.x; },
getNumLines: function() { return this.options.num_lines; },
setNumLines: function(lines) {
this.options.num_lines = parseInt(lines, 10);
this.resetLines();
return this;
},
setY: function(y) { this.y = y; return this; },
setWidth: function(width) {
this.width = width;
this.glyph_end_x = this.x + width;
this.end_x = this.glyph_end_x;
// reset the x position of the end barline (TODO(0xfe): This makes no sense)
// this.modifiers[1].setX(this.end_x);
return this;
},
getWidth: function() {
return this.width;
},
setMeasure: function(measure) { this.measure = measure; return this; },
// Bar Line functions
setBegBarType: function(type) {
// Only valid bar types at beginning of stave is none, single or begin repeat
if (type == Vex.Flow.Barline.type.SINGLE ||
type == Vex.Flow.Barline.type.REPEAT_BEGIN ||
type == Vex.Flow.Barline.type.NONE) {
this.modifiers[0] = new Vex.Flow.Barline(type, this.x);
}
return this;
},
setEndBarType: function(type) {
// Repeat end not valid at end of stave
if (type != Vex.Flow.Barline.type.REPEAT_BEGIN)
this.modifiers[1] = new Vex.Flow.Barline(type, this.x + this.width);
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
*/
getModifierXShift: function(index) {
if (typeof index === 'undefined') index = this.glyphs.length -1;
if (typeof index !== 'number') new Vex.RERR("InvalidIndex",
"Must be of number type");
var x = this.glyph_start_x;
var bar_x_shift = 0;
for (var i = 0; i < index + 1; ++i) {
var glyph = this.glyphs[i];
x += glyph.getMetrics().width;
bar_x_shift += glyph.getMetrics().width;
}
// Add padding after clef, time sig, key sig
if (bar_x_shift > 0) bar_x_shift += this.options.vertical_bar_width + 10;
return bar_x_shift;
},
// Coda & Segno Symbol functions
setRepetitionTypeLeft: function(type, y) {
this.modifiers.push(new Vex.Flow.Repetition(type, this.x, y));
return this;
},
setRepetitionTypeRight: function(type, y) {
this.modifiers.push(new Vex.Flow.Repetition(type, this.x, y) );
return this;
},
// Volta functions
setVoltaType: function(type, number_t, y) {
this.modifiers.push(new Vex.Flow.Volta(type, number_t, this.x, y));
return this;
},
// Section functions
setSection: function(section, y) {
this.modifiers.push(new Vex.Flow.StaveSection(section, this.x, y));
return this;
},
// Tempo functions
setTempo: function(tempo, y) {
this.modifiers.push(new Vex.Flow.StaveTempo(tempo, this.x, y));
return this;
},
// Text functions
setText: function(text, position, options) {
this.modifiers.push(new Vex.Flow.StaveText(text, position, options));
return this;
},
getHeight: function() {
return this.height;
},
getSpacingBetweenLines: function() {
return this.options.spacing_between_lines_px;
},
getBoundingBox: function() {
return new Vex.Flow.BoundingBox(this.x, this.y, this.width, this.getBottomY() - this.y);
// body...
},
getBottomY: function() {
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;
},
getBottomLineY: function() {
return this.getYForLine(this.options.num_lines);
},
getYForLine: function(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;
},
getYForTopText: function(line) {
var l = line || 0;
return this.getYForLine(-l - this.options.top_text_position);
},
getYForBottomText: function(line) {
var l = line || 0;
return this.getYForLine(this.options.bottom_text_position + l);
},
getYForNote: function(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;
},
getYForGlyphs: function() {
return this.getYForLine(3);
},
addGlyph: function(glyph) {
glyph.setStave(this);
this.glyphs.push(glyph);
this.start_x += glyph.getMetrics().width;
return this;
},
addEndGlyph: function(glyph) {
glyph.setStave(this);
this.end_glyphs.push(glyph);
this.end_x -= glyph.getMetrics().width;
return this;
},
addModifier: function(modifier) {
this.modifiers.push(modifier);
modifier.addToStave(this, (this.glyphs.length === 0));
return this;
},
addEndModifier: function(modifier) {
this.modifiers.push(modifier);
modifier.addToStaveEnd(this, (this.end_glyphs.length === 0));
return this;
},
addKeySignature: function(keySpec) {
this.addModifier(new Vex.Flow.KeySignature(keySpec));
return this;
},
addClef: function(clef, size, annotation) {
this.clef = clef;
this.addModifier(new Vex.Flow.Clef(clef, size, annotation));
return this;
},
addEndClef: function(clef, size, annotation) {
this.addEndModifier(new Vex.Flow.Clef(clef, size, annotation));
return this;
},
addTimeSignature: function(timeSpec, customPadding) {
this.addModifier(new Vex.Flow.TimeSignature(timeSpec, customPadding));
return this;
},
addEndTimeSignature: function(timeSpec, customPadding) {
this.addEndModifier(new Vex.Flow.TimeSignature(timeSpec, customPadding));
},
addTrebleGlyph: function() {
this.clef = "treble";
this.addGlyph(new Vex.Flow.Glyph("v83", 40));
return this;
},
/**
* All drawing functions below need the context to be set.
*/
draw: function() {
if (!this.context) throw new Vex.RERR("NoCanvasContext",
"Can't draw stave without canvas context.");
var num_lines = this.options.num_lines;
var width = this.width;
var x = this.x;
var y;
var glyph;
// 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, Vex.Flow.STAVE_LINE_THICKNESS);
}
this.context.restore();
}
// Render glyphs
x = this.glyph_start_x;
for (var i = 0; i < this.glyphs.length; ++i) {
glyph = this.glyphs[i];
if (!glyph.getContext()) {
glyph.setContext(this.context);
}
glyph.renderToStave(x);
x += glyph.getMetrics().width;
}
// Render end glyphs
x = this.glyph_end_x;
for (i = 0; i < this.end_glyphs.length; ++i) {
glyph = this.end_glyphs[i];
if (!glyph.getContext()) {
glyph.setContext(this.context);
}
x -= glyph.getMetrics().width;
glyph.renderToStave(x);
}
// Draw the modifiers (bar lines, coda, segno, repeat brackets, etc.)
for (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());
}
// 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
drawVertical: function(x, isDouble) {
this.drawVerticalFixed(this.x + x, isDouble);
},
drawVerticalFixed: function(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);
},
drawVerticalBar: function(x) {
this.drawVerticalBarFixed(this.x + x, false);
},
drawVerticalBarFixed: function(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.
*/
getConfigForLines: function() {
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.
*/
setConfigForLine: function(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.hasOwnProperty('visible')) {
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.
*/
setConfigForLines: function(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;
}());
// Vex Flow Notation
// Mohit Muthanna <mohit@muthanna.com>
//
// Copyright Mohit Muthanna 2010
//
// Requires vex.js.
/** @constructor */
Vex.Flow.StaveConnector = (function() {
function StaveConnector(top_stave, bottom_stave) {
this.init(top_stave, bottom_stave);
}
// SINGLE_LEFT and SINGLE are the same value for compatibility
// with older versions of vexflow which didn't have right sided
// stave connectors
StaveConnector.type = {
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
};
StaveConnector.prototype = {
init: function(top_stave, bottom_stave) {
this.thickness = Vex.Flow.STAVE_LINE_THICKNESS;
this.width = 3;
this.top_stave = top_stave;
this.bottom_stave = bottom_stave;
this.type = StaveConnector.type.DOUBLE;
this.x_shift = 0; // Mainly used to offset Bold Double Left to align with offset Repeat Begin bars
},
setContext: function(ctx) {
this.ctx = ctx;
return this;
},
setType: function(type) {
if (type >= StaveConnector.type.SINGLE_RIGHT &&
type <= StaveConnector.type.THIN_DOUBLE)
this.type = type;
return this;
},
setText: function(text, text_options) {
this.text = text;
this.text_options = {
shift_x: 0,
shift_y: 0
};
Vex.Merge(this.text_options, text_options);
this.font = {
family: "times",
size: 16,
weight: "normal"
};
return this;
},
setFont: function(font) {
Vex.Merge(this.font, font);
},
setXShift: function(x_shift){
if (typeof x_shift !== 'number') {
throw Vex.RERR("InvalidType", "x_shift must be a Number");
}
this.x_shift = x_shift;
return this;
},
draw: function() {
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;
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;
Vex.Flow.renderGlyph(this.ctx, topX - 5, topY - 3, 40, "v1b", true);
Vex.Flow.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;
}
if (this.type !== StaveConnector.type.BRACE &&
this.type !== StaveConnector.type.BOLD_DOUBLE_LEFT &&
this.type !== StaveConnector.type.BOLD_DOUBLE_RIGHT) {
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);
}
// Add stave connector text
if (this.text !== undefined) {
this.ctx.save();
this.ctx.lineWidth = 2;
this.ctx.setFont(this.font.family, this.font.size, this.font.weight);
var text_width = this.ctx.measureText("" + this.text).width;
var x = this.top_stave.getX() - text_width - 24 + this.text_options.shift_x;
var y = (this.top_stave.getYForLine(0) + this.bottom_stave.getBottomLineY()) / 2 +
this.text_options.shift_y;
this.ctx.fillText("" + this.text, x, y + 4);
this.ctx.restore();
}
}
};
function drawBoldDoubleLine(ctx, type, topX, topY, botY){
if (type !== StaveConnector.type.BOLD_DOUBLE_LEFT &&
type !== StaveConnector.type.BOLD_DOUBLE_RIGHT) {
throw 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);
}
return StaveConnector;
}());
// Vex Flow
// Mohit Muthanna <mohit@muthanna.com>
//
// Copyright Mohit Cheppudira 2010
/** @constructor */
Vex.Flow.TabStave = (function() {
function TabStave(x, y, width, options) {
if (arguments.length > 0) this.init(x, y, width, options);
}
Vex.Inherit(TabStave, Vex.Flow.Stave, {
init: function(x, y, width, options) {
var tab_options = {
spacing_between_lines_px: 13,
num_lines: 6,
top_text_position: 1
};
Vex.Merge(tab_options, options);
TabStave.superclass.init.call(this, x, y, width, tab_options);
},
getYForGlyphs: function() {
return this.getYForLine(2.5);
},
addTabGlyph: function() {
var glyphScale;
var glyphOffset;
switch(this.options.num_lines) {
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;
}
var tabGlyph = new Vex.Flow.Glyph("v2f", glyphScale);
tabGlyph.y_shift = glyphOffset;
this.addGlyph(tabGlyph);
return this;
}
});
return TabStave;
}());
// Vex Flow
// Copyright Mohit Cheppudira <mohit@muthanna.com>
//
// A formatter for abstract tickable objects, such as notes, chords,
// tabs, etc.
/** @constructor */
Vex.Flow.TickContext = (function() {
function TickContext() {
this.init();
}
TickContext.prototype = {
init: function() {
this.currentTick = new Vex.Flow.Fraction(0, 1);
this.maxTicks = new Vex.Flow.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
},
setContext: function(context) { this.context = context; return this; },
getContext: function() { return this.context; },
shouldIgnoreTicks: function() { return this.ignore_ticks; },
getWidth: function() { return this.width + (this.padding * 2); },
getX: function() { return this.x; },
setX: function(x) { this.x = x; return this; },
getPixelsUsed: function() { return this.pixelsUsed; },
setPixelsUsed: function(pixelsUsed) { this.pixelsUsed = pixelsUsed; return this; },
setPadding: function(padding) { this.padding = padding; return this; },
getMaxTicks: function() { return this.maxTicks; },
getMinTicks: function() { return this.minTicks; },
getTickables: function() { return this.tickables; },
getCenterAlignedTickables: function() {
return this.tickables.filter(function(tickable) {
return tickable.isCenterAligned();
});
},
// Get widths context, note and left/right modifiers for formatting
getMetrics: function() {
return { width: this.width, notePx: this.notePx,
extraLeftPx: this.extraLeftPx, extraRightPx: this.extraRightPx };
},
getCurrentTick: function() { return this.currentTick; },
setCurrentTick: function(tick) {
this.currentTick = tick;
this.preFormatted = false;
},
// Get left & right pixels used for modifiers
getExtraPx: function() {
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 };
},
addTickable: function(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;
},
preFormat: function() {
if (this.preFormatted) return;
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;
},
postFormat: function() {
if (this.postFormatted) return this;
this.postFormatted = true;
return this;
}
};
TickContext.getNextContext = function(tContext) {
var contexts = tContext.tContexts;
var index = contexts.indexOf(tContext);
return contexts[index+1];
};
return TickContext;
}());
// Vex Flow
// Copyright Mohit Cheppudira <mohit@muthanna.com>
//
// The tickable interface. Tickables are things that sit on a score and
// have a duration, i.e., they occupy space in the musical rendering dimension.
/** @constructor */
Vex.Flow.Tickable = (function() {
function Tickable() {
this.init();
}
Tickable.prototype = {
init: function() {
this.intrinsicTicks = 0;
this.tickMultiplier = new Vex.Flow.Fraction(1, 1);
this.ticks = new Vex.Flow.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.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;
},
setContext: function(context) { this.context = context; },
getBoundingBox: function() { return null; },
getTicks: function() { return this.ticks; },
shouldIgnoreTicks: function() { return this.ignore_ticks; },
getWidth: function() { return this.width; },
setXShift: function(x) { this.x_shift = x; },
getCenterXShift: function() {
if (this.isCenterAligned()) {
return this.center_x_shift;
}
return 0;
},
isCenterAligned: function() { return this.align_center; },
setCenterAlignment: function(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.
getVoice: function() {
if (!this.voice) throw new Vex.RERR("NoVoice", "Tickable has no voice.");
return this.voice;
},
setVoice: function(voice) { this.voice = voice; },
getTuplet: function() { return this.tuplet; },
setTuplet: function(tuplet) {
// Detach from previous tuplet
var noteCount, beatsOccupied;
if (this.tuplet) {
noteCount = this.tuplet.getNoteCount();
beatsOccupied = this.tuplet.getBeatsOccupied();
// Revert old multiplier
this.applyTickMultiplier(noteCount, beatsOccupied);
}
// Attach to new tuplet
if (tuplet) {
noteCount = tuplet.getNoteCount();
beatsOccupied = tuplet.getBeatsOccupied();
this.applyTickMultiplier(beatsOccupied, noteCount);
}
this.tuplet = tuplet;
return this;
},
/** optional, if tickable has modifiers **/
addToModifierContext: function(mc) {
this.modifierContext = mc;
// Add modifiers to modifier context (if any)
this.preFormatted = false;
},
/** optional, if tickable has modifiers **/
addModifier: function(mod) {
this.modifiers.push(mod);
this.preFormatted = false;
return this;
},
setTickContext: function(tc) {
this.tickContext = tc;
this.preFormatted = false;
},
preFormat: function() {
if (this.preFormatted) return;
this.width = 0;
if (this.modifierContext) {
this.modifierContext.preFormat();
this.width += this.modifierContext.getWidth();
}
},
postFormat: function() {
if (this.postFormatted) return;
this.postFormatted = true;
return this;
},
getIntrinsicTicks: function() {
return this.intrinsicTicks;
},
setIntrinsicTicks: function(intrinsicTicks) {
this.intrinsicTicks = intrinsicTicks;
this.ticks = this.tickMultiplier.clone().multiply(this.intrinsicTicks);
},
getTickMultiplier: function() {
return this.tickMultiplier;
},
applyTickMultiplier: function(numerator, denominator) {
this.tickMultiplier.multiply(numerator, denominator);
this.ticks = this.tickMultiplier.clone().multiply(this.intrinsicTicks);
},
setDuration: function(duration) {
var ticks = duration.numerator * (Vex.Flow.RESOLUTION / duration.denominator);
this.ticks = this.tickMultiplier.clone().multiply(ticks);
this.intrinsicTicks = this.ticks.value();
}
};
return Tickable;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
//
// This file implements an abstract interface for notes and chords that
// are rendered on a stave. Notes have some common properties: All of them
// have a value (e.g., pitch, fret, etc.) and a duration (quarter, half, etc.)
//
// Some notes have stems, heads, dots, etc. Most notational elements that
// surround a note are called *modifiers*, and every note has an associated
// array of them. All notes also have a rendering context and belong to a stave.
Vex.Flow.Note = (function() {
// 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`.
function Note(note_struct) {
if (arguments.length > 0) this.init(note_struct);
}
Note.CATEGORY = "note";
// ## Prototype Methods
//
// Every note is a tickable, i.e., it can be mutated by the `Formatter` class for
// positioning and layout.
Vex.Inherit(Note, Vex.Flow.Tickable, {
// See constructor above for how to create a note.
init: function(note_struct) {
Note.superclass.init.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 = Vex.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 = Vex.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
};
},
// Get and set the play note, which is arbitrary data that can be used by an
// audio player.
getPlayNote: function() { return this.playNote; },
setPlayNote: function(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.
isRest: function() { return false; },
// TODO(0xfe): Why is this method here?
addStroke: function(index, stroke) {
stroke.setNote(this);
stroke.setIndex(index);
this.modifiers.push(stroke);
this.setPreFormatted(false);
return this;
},
// Get and set the target stave.
getStave: function() { return this.stave; },
setStave: function(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`.
getCategory: function() { return this.constructor.CATEGORY; },
// Set the rendering context for the note.
setContext: function(context) { this.context = context; return this; },
// Get and set spacing to the left and right of the notes.
getExtraLeftPx: function() { return this.extraLeftPx; },
getExtraRightPx: function() { return this.extraRightPx; },
setExtraLeftPx: function(x) { this.extraLeftPx = x; return this; },
setExtraRightPx: function(x) { this.extraRightPx = x; return this; },
// Returns true if this note has no duration (e.g., bar notes, spacers, etc.)
shouldIgnoreTicks: function() { return this.ignore_ticks; },
// Get the stave line number for the note.
getLineNumber: function() { return 0; },
// Get the stave line number for rest.
getLineForRest: function() { return 0; },
// Get the glyph associated with this note.
getGlyph: function() { 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.
setYs: function(ys) { this.ys = ys; return this; },
getYs: function() {
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.
getYForTopText: function(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.
getBoundingBox: function() { return null; },
// Returns the voice that this note belongs in.
getVoice: function() {
if (!this.voice) throw new Vex.RERR("NoVoice", "Note has no voice.");
return this.voice;
},
// Attach this note to `voice`.
setVoice: function(voice) {
this.voice = voice;
this.preFormatted = false;
return this;
},
// Get and set the `TickContext` for this note.
getTickContext: function() { return this.tickContext; },
setTickContext: function(tc) {
this.tickContext = tc;
this.preFormatted = false;
return this;
},
// Accessors for the note type.
getDuration: function() { return this.duration; },
isDotted: function() { return (this.dots > 0); },
hasStem: function() { return false; },
getDots: function() { return this.dots; },
getNoteType: function() { return this.noteType; },
setBeam: function() { return this; }, // ignore parameters
// Attach this note to a modifier context.
setModifierContext: function(mc) { this.modifierContext = mc; return this; },
// Attach a modifier to this note.
addModifier: function(modifier, index) {
modifier.setNote(this);
modifier.setIndex(index || 0);
this.modifiers.push(modifier);
this.setPreFormatted(false);
return this;
},
// Get the coordinates for where modifiers begin.
getModifierStartXY: function() {
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.
getMetrics: function() {
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 - // used by accidentals and modifiers
this.extraLeftPx - this.extraRightPx,
left_shift: this.x_shift, // TODO(0xfe): Make style consistent
modLeftPx: modLeftPx,
modRightPx: modRightPx,
extraLeftPx: this.extraLeftPx,
extraRightPx: this.extraRightPx };
},
// Get and set width of note. Used by the formatter for positioning.
setWidth: function(width) { this.width = width; },
getWidth: function() {
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.
setXShift: function(x) {
this.x_shift = x;
return this;
},
// Get `X` position of this tick context.
getX: function() {
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 relative to the stave.
getAbsoluteX: function() {
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;
},
setPreFormatted: function(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;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
//
// This file implements `NoteHeads`. `NoteHeads` are typically not manipulated
// directly, but used internally in `StaveNote`.
//
// See `tests/notehead_tests.js` for usage examples.
Vex.Flow.NoteHead = (function() {
var NoteHead = function(head_options) {
if (arguments.length > 0) this.init(head_options);
};
// To enable logging for this class. Set `Vex.Flow.NoteHead.DEBUG` to `true`.
function L() { if (NoteHead.DEBUG) Vex.L("Vex.Flow.NoteHead", arguments); }
// 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 + (Vex.Flow.STEM_WIDTH / 2);
ctx.save();
ctx.setLineWidth(Vex.Flow.STEM_WIDTH);
var fill = false;
if (Vex.Flow.durationToNumber(duration) > 2) {
fill = true;
}
if (!fill) x -= (Vex.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 (Vex.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();
}
// ## Prototype Methods
Vex.Inherit(NoteHead, Vex.Flow.Note, {
init: function(head_options) {
NoteHead.superclass.init.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 || Vex.Flow.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 = Vex.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 // number of stroke px to the left and right of head
});
if (head_options.glyph_font_scale) {
this.render_options.glyph_font_scale = head_options.glyph_font_scale;
}
this.setWidth(this.glyph.head_width);
},
// Get the `ModifierContext` category
getCategory: function() { return "notehead"; },
// Set the Cavnas context for drawing
setContext: function(context) { this.context = context; return this;},
// Get the width of the notehead
getWidth: function() { return this.width; },
// Determine if the notehead is displaced
isDisplaced: function() { return this.displaced === true; },
// Get/set the notehead's style
//
// `style` is an `object` with the following properties: `shadowColor`,
// `shadowBlur`, `fillStyle`, `strokeStyle`
getStyle: function() { return this.style; },
setStyle: function(style) { this.style = style; return this; },
// Get the glyph data
getGlyph: function(){ return this.glyph; },
// Set the X coordinate
setX: function(x){ this.x = x; return this; },
// get/set the Y coordinate
getY: function() { return this.y; },
setY: function(y) { this.y = y; return this; },
// Get/set the stave line the notehead is placed on
getLine: function() { return this.line; },
setLine: function(line) { this.line = line; return this; },
// Get the canvas `x` coordinate position of the notehead.
getAbsoluteX: function() {
var getAbsoluteX = NoteHead.superclass.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 : getAbsoluteX.call(this);
return x + (this.displaced ? this.width * this.stem_direction : 0);
},
// Get the `BoundingBox` for the `NoteHead`
getBoundingBox: function() {
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 Vex.Flow.BoundingBox(this.getAbsoluteX(), min_y, this.width, spacing);
},
// Apply current style to Canvas `context`
applyStyle: function(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`
setStave: function(stave){
var line = this.getLine();
this.stave = stave;
this.setY(stave.getYForNote(line));
this.context = this.stave.context;
return this;
},
// Pre-render formatting
preFormat: function() {
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
draw: function() {
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("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);
Vex.Flow.renderGlyph(ctx, head_x, y, glyph_font_scale, this.glyph_code);
ctx.restore();
} else {
Vex.Flow.renderGlyph(ctx, head_x, y, glyph_font_scale, this.glyph_code);
}
}
}
});
return NoteHead;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
//
// This file implements the `Stem` object. Generally this object is handled
// by its parent `StemmableNote`.
//
Vex.Flow.Stem = (function() {
var Stem = function(options) {
if (arguments.length > 0) this.init(options);
};
// To enable logging for this class. Set `Vex.Flow.Stem.DEBUG` to `true`.
function L() { if (Stem.DEBUG) Vex.L("Vex.Flow.Stem", arguments); }
// Stem directions
Stem.UP = 1;
Stem.DOWN = -1;
// Theme
Stem.WIDTH = Vex.Flow.STEM_WIDTH;
Stem.HEIGHT = Vex.Flow.STEM_HEIGHT;
// ## Prototype Methods
Stem.prototype = {
init: function(options) {
// 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
setNoteHeadXBounds: function(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
setDirection: function(direction){ this.stem_direction = direction; },
// Set the extension for the stem, generally for flags or beams
setExtension: function(ext) { this.stem_extension = ext; },
// The the y bounds for the top and bottom noteheads
setYBounds: function(y_top, y_bottom) {
this.y_top = y_top;
this.y_bottom = y_bottom;
},
// The category of the object
getCategory: function() { return "stem"; },
// Set the canvas context to render on
setContext: function(context) { this.context = context; return this;},
// Gets the entire height for the stem
getHeight: function() {
return ((this.y_bottom - this.y_top) * this.stem_direction) +
((Stem.HEIGHT + this.stem_extension) * this.stem_direction);
},
getBoundingBox: function() {
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
getExtents: function() {
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 = (top_pixel > stem_top) ? top_pixel : stem_top;
base_pixel = (base_pixel < ys[i]) ? base_pixel : ys[i];
} else {
top_pixel = (top_pixel < stem_top) ? top_pixel : stem_top;
base_pixel = (base_pixel > ys[i]) ? base_pixel : ys[i];
}
}
return { topY: top_pixel, baseY: base_pixel };
},
// set the draw style of a stem:
setStyle: function(style) { this.style = style; return this; },
getStyle: function() { return this.style; },
// Apply current style to Canvas `context`
applyStyle: function(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
draw: function() {
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, stem_y;
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("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;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
//
// `StemmableNote` is an abstract interface for notes with optional stems.
// Examples of stemmable notes are `StaveNote` and `TabNote`
Vex.Flow.StemmableNote = (function(){
var StemmableNote = function(note_struct) {
if (arguments.length > 0) this.init(note_struct);
};
// To enable logging for this class. Set `Vex.Flow.StemmableNote.DEBUG` to `true`.
function L() { if (StemmableNote.DEBUG) Vex.L("Vex.Flow.StemmableNote", arguments); }
var Stem = Vex.Flow.Stem;
Vex.Inherit(StemmableNote, Vex.Flow.Note, {
init: function(note_struct){
StemmableNote.superclass.init.call(this, note_struct);
this.stem = null;
this.stem_extension_override = null;
this.beam = null;
},
// Get and set the note's `Stem`
getStem: function() {return this.stem; },
setStem: function(stem) { this.stem = stem; return this; },
// Builds and sets a new stem
buildStem: function() {
var stem = new Stem();
this.setStem(stem);
return this;
},
// Get the full length of stem
getStemLength: function() {
return Stem.HEIGHT + this.getStemExtension();
},
// Get the number of beams for this duration
getBeamCount: function(){
var glyph = this.getGlyph();
if (glyph) {
return glyph.beam_count;
} else {
return 0;
}
},
// Get the minimum length of stem
getStemMinumumLength: function() {
var frac = Vex.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":
if (this.beam == null)
length = 35;
else
length = 25;
break;
case "32":
if (this.beam == null)
length = 45;
else
length = 35;
break;
case "64":
if (this.beam == null)
length = 50;
else
length = 40;
break;
case "128":
if (this.beam == null)
length = 55;
else
length = 45;
}
return length;
},
// Get/set the direction of the stem
getStemDirection: function() { return this.stem_direction; },
setStemDirection: function(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
getStemX: function() {
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
getCenterGlyphX: function(){
return this.getAbsoluteX() + this.x_shift + (this.glyph.head_width / 2);
},
// Get the stem extension for the current duration
getStemExtension: function(){
var glyph = this.getGlyph();
if (this.stem_extension_override != null) {
return this.stem_extension_override;
}
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.
setStemLength: function(height) {
this.stem_extension_override = (height - Stem.HEIGHT);
return this;
},
// Get the top and bottom `y` values of the stem.
getStemExtents: function() {
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 top_pixel = this.ys[0];
var base_pixel = this.ys[0];
var stem_height = Stem.HEIGHT + this.getStemExtension();
for (var i = 0; i < this.ys.length; ++i) {
var stem_top = this.ys[i] + (stem_height * -this.stem_direction);
if (this.stem_direction == Stem.DOWN) {
top_pixel = (top_pixel > stem_top) ? top_pixel : stem_top;
base_pixel = (base_pixel < this.ys[i]) ? base_pixel : this.ys[i];
} else {
top_pixel = (top_pixel < stem_top) ? top_pixel : stem_top;
base_pixel = (base_pixel > this.ys[i]) ? base_pixel : this.ys[i];
}
if(this.noteType == "s" || this.noteType == 'x') {
top_pixel -= this.stem_direction * 7;
base_pixel -= this.stem_direction * 7;
}
}
L("Stem extents: ", top_pixel, base_pixel);
return { topY: top_pixel, baseY: base_pixel };
},
// Sets the current note's beam
setBeam: function(beam) { this.beam = beam; return this; },
// Get the `y` value for the top/bottom modifiers at a specific `text_line`
getYForTopText: function(text_line) {
var extents = this.getStemExtents();
if (this.hasStem()) {
return Vex.Min(this.stave.getYForTopText(text_line),
extents.topY - (this.render_options.annotation_spacing * (text_line + 1)));
} else {
return this.stave.getYForTopText(text_line);
}
},
getYForBottomText: function(text_line) {
var extents = this.getStemExtents();
if (this.hasStem()) {
return Vex.Max(this.stave.getYForTopText(text_line),
extents.baseY + (this.render_options.annotation_spacing * (text_line)));
} else {
return this.stave.getYForBottomText(text_line);
}
},
// Post format the note
postFormat: function() {
if (this.beam) {
this.beam.postFormat();
}
this.postFormatted = true;
return this;
},
// Render the stem onto the canvas
drawStem: function(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;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
//
// This file implements notes for standard notation. This consists of one or
// more `NoteHeads`, an optional stem, and an optional flag.
//
// *Throughout these comments, a "note" refers to the entire `StaveNote`,
// and a "key" refers to a specific pitch/notehead within a note.*
//
// See `tests/stavenote_tests.js` for usage examples.
Vex.Flow.StaveNote = (function() {
var StaveNote = function(note_struct) {
if (arguments.length > 0) this.init(note_struct);
};
StaveNote.CATEGORY = "stavenotes";
// To enable logging for this class. Set `Vex.Flow.StaveNote.DEBUG` to `true`.
function L() { if (StaveNote.DEBUG) Vex.L("Vex.Flow.StaveNote", arguments); }
var Stem = Vex.Flow.Stem;
var NoteHead = Vex.Flow.NoteHead;
// Stem directions
StaveNote.STEM_UP = Stem.UP;
StaveNote.STEM_DOWN = Stem.DOWN;
// Helper methods for rest positioning in ModifierContext.
var shiftRestVertical = function(rest, note, dir) {
var delta = (note.isrest ? 0.0 : 1.0) * dir;
rest.line += delta;
rest.max_line += delta;
rest.min_line += delta;
rest.note.setKeyLine(0, rest.note.getKeyLine(0) + (delta));
};
// Called from formatNotes :: center a rest between two notes
var centerRest = function(rest, noteU, noteL) {
var delta = rest.line - Vex.MidLine(noteU.min_line, noteL.max_line);
rest.note.setKeyLine(0, rest.note.getKeyLine(0) - delta);
rest.line -= delta;
rest.max_line -= delta;
rest.min_line -= delta;
};
// ## Static Methods
//
// Format notes inside a ModifierContext.
StaveNote.format = function(notes, state) {
if (!notes || notes.length < 2) return false;
if (notes[0].getStave() != null) return StaveNote.formatByY(notes, state);
var notes_list= [];
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 stem_dir = notes[i].getStemDirection();
var stem_max = notes[i].getStemLength() / 10;
var stem_min = notes[i].getStemMinumumLength() / 10;
var maxL;
if (notes[i].isRest()) {
maxL = line + notes[i].glyph.line_above;
minL = line - notes[i].glyph.line_below;
} else {
maxL = stem_dir == 1 ? props[props.length -1].line + stem_max
: props[props.length -1].line;
minL = stem_dir == 1 ? props[0].line
: props[0].line - stem_max;
}
notes_list.push(
{line: props[0].line, // note/rest base line
max_line: maxL, // note/rest upper bounds line
min_line: minL, // note/rest lower bounds line
isrest: notes[i].isRest(),
stem_dir: stem_dir,
stem_max: stem_max, // Maximum (default) note stem length;
stem_min: stem_min, // minimum note stem length
voice_shift: notes[i].getVoiceShiftWidth(),
is_displaced: notes[i].isDisplaced(), // note manually displaced
note: notes[i]});
}
var voices = notes_list.length;
var noteU = notes_list[0];
var noteM = voices > 2 ? notes_list[1] : null;
var noteL = voices > 2 ? notes_list[2] : notes_list[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.stem_dir == -1 && noteL.stem_dir == 1) {
noteU = notes_list[1];
noteL = notes_list[0];
}
var voice_x_shift = Math.max(noteU.voice_shift, noteL.voice_shift);
var x_shift = 0;
var stem_delta;
// Test for two voice note intersection
if (voices == 2) {
var line_spacing = noteU.stem_dir == noteL.stem_dir ? 0.0 : 0.5;
// if top voice is a middle voice, check stem intersection with lower voice
if (noteU.stem_dir == noteL.stem_dir &&
noteU.min_line <= noteL.max_line) {
if (!noteU.isrest) {
stem_delta = Math.abs(noteU.line - (noteL.max_line + 0.5));
stem_delta = Math.max(stem_delta, noteU.stem_min);
noteU.min_line = noteU.line - stem_delta;
noteU.note.setStemLength(stem_delta * 10);
}
}
if (noteU.min_line <= noteL.max_line + line_spacing) {
if (noteU.isrest) {
// shift rest up
shiftRestVertical(noteU, noteL, 1);
} else if (noteL.isrest) {
// shift rest down
shiftRestVertical(noteL, noteU, -1);
} else {
x_shift = voice_x_shift;
if (noteU.stem_dir == noteL.stem_dir)
// upper voice is middle voice, so shift it right
noteU.note.setXShift(x_shift + 3);
else
// shift lower voice right
noteL.note.setXShift(x_shift);
}
}
// format complete
return true;
}
// Check middle voice stem intersection with lower voice
if (noteM != null && noteM.min_line < noteL.max_line + 0.5) {
if (!noteM.isrest) {
stem_delta = Math.abs(noteM.line - (noteL.max_line + 0.5));
stem_delta = Math.max(stem_delta, noteM.stem_min);
noteM.min_line = noteM.line - stem_delta;
noteM.note.setStemLength(stem_delta * 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.min_line <= noteM.max_line ||
noteM.min_line <= noteL.max_line) {
var rest_height = noteM.max_line - noteM.min_line;
var space = noteU.min_line - noteL.max_line;
if (rest_height < space)
// center middle voice rest between the upper and lower voices
centerRest(noteM, noteU, noteL);
else {
x_shift = voice_x_shift + 3; // shift middle rest right
noteM.note.setXShift(x_shift);
}
// 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.min_line <= noteL.max_line)
// Shift middle voice rest up
shiftRestVertical(noteM, noteL, 1);
if (noteM.isrest && noteL.isrest && noteU.min_line <= noteM.max_line)
// Shift middle voice rest down
shiftRestVertical(noteM, noteU, -1);
if (noteU.isrest && noteU.min_line <= noteM.max_line)
// shift upper voice rest up;
shiftRestVertical(noteU, noteM, 1);
if (noteL.isrest && noteM.min_line <= noteL.max_line)
// shift lower voice rest down
shiftRestVertical(noteL, noteM, -1);
// If middle voice intersects upper or lower voice
if ((!noteU.isrest && !noteM.isrest && noteU.min_line <= noteM.max_line + 0.5) ||
(!noteM.isrest && !noteL.isrest && noteM.min_line <= noteL.max_line)) {
x_shift = voice_x_shift + 3; // shift middle note right
noteM.note.setXShift(x_shift);
}
return true;
};
StaveNote.formatByY = function(notes, state) {
// NOTE: this function does not support more than two voices per stave
// use with care.
var hasStave = true;
var i;
for (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 x_shift = 0;
for (i = 0; i < notes.length - 1; i++) {
var top_note = notes[i];
var bottom_note = notes[i + 1];
if (top_note.getStemDirection() == Vex.Flow.StaveNote.STEM_DOWN) {
top_note = notes[i + 1];
bottom_note = notes[i];
}
var top_keys = top_note.getKeyProps();
var bottom_keys = bottom_note.getKeyProps();
var topY = top_note.getStave().getYForLine(top_keys[0].line);
var bottomY = bottom_note.getStave().getYForLine(bottom_keys[bottom_keys.length - 1].line);
var line_space = top_note.getStave().options.spacing_between_lines_px;
if (Math.abs(topY - bottomY) == line_space / 2) {
x_shift = top_note.getVoiceShiftWidth();
bottom_note.setXShift(x_shift);
}
}
state.right_shift += x_shift;
};
StaveNote.postFormat = function(notes) {
if (!notes) return false;
notes.forEach(function(note) {
note.postFormat();
});
return true;
};
// ## Prototype Methods
//
Vex.Inherit(StaveNote, Vex.Flow.StemmableNote, {
init: function(note_struct) {
StaveNote.superclass.init.call(this, note_struct);
this.keys = note_struct.keys;
this.clef = note_struct.clef;
this.octave_shift = note_struct.octave_shift;
this.beam = null;
// Pull note rendering properties
this.glyph = Vex.Flow.durationToGlyph(this.duration, this.noteType);
if (!this.glyph) {
throw new Vex.RuntimeError("BadArguments",
"Invalid note initialization data (No glyph found): " +
JSON.stringify(note_struct));
}
// 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 (note_struct.auto_stem) {
this.autoStem();
} else {
this.setStemDirection(note_struct.stem_direction);
}
this.buildNoteHeads();
// Calculate left/right padding
this.calcExtraPx();
},
// Builds a `Stem` for the note
buildStem: function() {
var glyph = this.getGlyph();
var y_extend = 0;
if (glyph.code_head == "v95" || glyph.code_head == "v3e") {
y_extend = -4;
}
var stem = new Stem({
y_extend: y_extend
});
if (this.isRest()) {
stem.hide = true;
}
this.setStem(stem);
},
// Builds a `NoteHead` for each key in the note
buildNoteHeads: function() {
var stem_direction = this.getStemDirection();
var keys = this.getKeys();
var last_line = null;
var line_diff = null;
var displaced = false;
// Draw notes from bottom to top.
var start_i = 0;
var end_i = keys.length;
var step_i = 1;
// For down-stem notes, we draw from top to bottom.
if (stem_direction === Stem.DOWN) {
start_i = keys.length - 1;
end_i = -1;
step_i = -1;
}
for (var i = start_i; i != end_i; i += step_i) {
var note_props = this.keyProps[i];
var line = note_props.line;
// Keep track of last line with a note head, so that consecutive heads
// are correctly displaced.
if (last_line === null) {
last_line = line;
} else {
line_diff = Math.abs(last_line - line);
if (line_diff === 0 || line_diff === 0.5) {
displaced = !displaced;
} else {
displaced = false;
this.use_default_head_x = true;
}
}
last_line = line;
var note_head = new NoteHead({
duration: this.duration,
note_type: this.noteType,
displaced: displaced,
stem_direction: stem_direction,
custom_glyph_code: note_props.code,
glyph_font_scale: this.render_options.glyph_font_scale,
x_shift: note_props.shift_right,
line: note_props.line
});
this.note_heads[i] = note_head;
}
},
// Automatically sets the stem direction based on the keys in the note
autoStem: function() {
var auto_stem_direction;
// Figure out optimal stem direction based on given notes
this.min_line = this.keyProps[0].line;
this.max_line = this.keyProps[this.keyProps.length - 1].line;
var decider = (this.min_line + this.max_line) / 2;
if (decider < 3) {
auto_stem_direction = 1;
} else {
auto_stem_direction = -1;
}
this.setStemDirection(auto_stem_direction);
},
// Calculates and stores the properties for each key in the note
calculateKeyProps: function() {
var last_line = 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 = Vex.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 (last_line === null) {
last_line = line;
} else {
if (Math.abs(last_line - 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;
}
}
}
last_line = line;
this.keyProps.push(props);
}
// Sort the notes from lowest line to highest line
this.keyProps.sort(function(a, b) { return a.line - b.line; });
},
// Get the `BoundingBox` for the entire note
getBoundingBox: function() {
if (!this.preFormatted) throw new Vex.RERR("UnformattedNote",
"Can't call getBoundingBox on an unformatted note.");
var metrics = this.getMetrics();
var w = metrics.width;
var x = this.getAbsoluteX() - metrics.modLeftPx - metrics.extraLeftPx;
var min_y = 0;
var max_y = 0;
var half_line_spacing = this.getStave().getSpacingBetweenLines() / 2;
var line_spacing = half_line_spacing * 2;
if (this.isRest()) {
var y = this.ys[0];
var frac = Vex.Flow.durationToFraction(this.duration);
if (frac.equals(1) || frac.equals(2)) {
min_y = y - half_line_spacing;
max_y = y + half_line_spacing;
} else {
min_y = y - (this.glyph.line_above * line_spacing);
max_y = y + (this.glyph.line_below * line_spacing);
}
} else if (this.glyph.stem) {
var ys = this.getStemExtents();
ys.baseY += half_line_spacing * this.stem_direction;
min_y = Vex.Min(ys.topY, ys.baseY);
max_y = Vex.Max(ys.topY, ys.baseY);
} else {
min_y = null;
max_y = null;
for (var i=0; i < this.ys.length; ++i) {
var yy = this.ys[i];
if (i === 0) {
min_y = yy;
max_y = yy;
} else {
min_y = Vex.Min(yy, min_y);
max_y = Vex.Max(yy, max_y);
}
min_y -= half_line_spacing;
max_y += half_line_spacing;
}
}
return new Vex.Flow.BoundingBox(x, min_y, w, max_y - min_y);
},
// Gets the line number of the top or bottom note in the chord.
// If `is_top_note` is `true` then get the top note
getLineNumber: function(is_top_note) {
if(!this.keyProps.length) throw new Vex.RERR("NoKeyProps",
"Can't get bottom note line, because note is not initialized properly.");
var result_line = this.keyProps[0].line;
// No precondition assumed for sortedness of keyProps array
for (var i=0; i<this.keyProps.length; i++) {
var this_line = this.keyProps[i].line;
if (is_top_note) {
if (this_line > result_line) result_line = this_line;
} else {
if (this_line < result_line) result_line = this_line;
}
}
return result_line;
},
// Determine if current note is a rest
isRest: function() { return this.glyph.rest; },
// Determine if the current note is a chord
isChord: function() { return !this.isRest() && this.keys.length > 1; },
// Determine if the `StaveNote` has a stem
hasStem: function() { return this.glyph.stem; },
// Get the `y` coordinate for text placed on the top/bottom of a
// note at a desired `text_line`
getYForTopText: function(text_line) {
var extents = this.getStemExtents();
return Vex.Min(this.stave.getYForTopText(text_line),
extents.topY - (this.render_options.annotation_spacing * (text_line + 1)));
},
getYForBottomText: function(text_line) {
var extents = this.getStemExtents();
return Vex.Max(this.stave.getYForTopText(text_line),
extents.baseY + (this.render_options.annotation_spacing * (text_line)));
},
// Sets the current note to the provided `stave`. This applies
// `y` values to the `NoteHeads`.
setStave: function(stave) {
var superclass = Vex.Flow.StaveNote.superclass;
superclass.setStave.call(this, stave);
var ys = this.note_heads.map(function(note_head) {
note_head.setStave(stave);
return note_head.getY();
});
this.setYs(ys);
var bounds = this.getNoteHeadBounds();
if(!this.beam){
this.stem.setYBounds(bounds.y_top, bounds.y_bottom);
}
return this;
},
// Get the pitches in the note
getKeys: function() { return this.keys; },
// Get the properties for all the keys in the note
getKeyProps: function() {
return this.keyProps;
},
// Check if note is shifted to the right
isDisplaced: function() {
return this.displaced;
},
// Sets whether shift note to the right. `displaced` is a `boolean`
setNoteDisplaced: function(displaced) {
this.displaced = displaced;
return this;
},
// Get the starting `x` coordinate for a `StaveTie`
getTieRightX: function() {
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`
getTieLeftX: function() {
var tieEndX = this.getAbsoluteX();
tieEndX += this.x_shift - this.extraLeftPx;
return tieEndX;
},
// Get the stave line on which to place a rest
getLineForRest: function() {
var rest_line = this.keyProps[0].line;
if (this.keyProps.length > 1) {
var last_line = this.keyProps[this.keyProps.length - 1].line;
var top = Vex.Max(rest_line, last_line);
var bot = Vex.Min(rest_line, last_line);
rest_line = Vex.MidLine(top, bot);
}
return rest_line;
},
// Get the default `x` and `y` coordinates for the provided `position`
// and key `index`
getModifierStartXY: function(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 == Vex.Flow.Modifier.Position.LEFT) {
// extra_left_px
x = -1 * 2;
} else if (position == Vex.Flow.Modifier.Position.RIGHT) {
// extra_right_px
x = this.glyph.head_width + this.x_shift + 2;
} else if (position == Vex.Flow.Modifier.Position.BELOW ||
position == Vex.Flow.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.
setStyle: function(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`
setKeyStyle: function(index, style) {
this.note_heads[index].setStyle(style);
return this;
},
setKeyLine: function(index, line) {
this.keyProps[index].line = line;
this.note_heads[index].setLine(line);
return this;
},
getKeyLine: function(index) {
return this.keyProps[index].line;
},
// Add self to modifier context. `mContext` is the `ModifierContext`
// to be added to.
addToModifierContext: function(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
addModifier: function(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
addAccidental: function(index, accidental) {
return this.addModifier(index, accidental);
},
// Helper function to add an articulation to a key
addArticulation: function(index, articulation) {
return this.addModifier(index, articulation);
},
// Helper function to add an annotation to a key
addAnnotation: function(index, annotation) {
return this.addModifier(index, annotation);
},
// Helper function to add a dot on a specific key
addDot: function(index) {
var dot = new Vex.Flow.Dot();
dot.setDotShiftY(this.glyph.dot_shiftY);
this.dots++;
return this.addModifier(index, dot);
},
// Convenience method to add dot to all keys in note
addDotToAll: function() {
for (var i = 0; i < this.keys.length; ++i)
this.addDot(i);
return this;
},
// Get all accidentals in the `ModifierContext`
getAccidentals: function() {
return this.modifierContext.getModifiers("accidentals");
},
// Get all dots in the `ModifierContext`
getDots: function() {
return this.modifierContext.getModifiers("dots");
},
// Get the width of the note if it is displaced. Used for `Voice`
// formatting
getVoiceShiftWidth: function() {
// 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
calcExtraPx: function() {
this.setExtraLeftPx((this.displaced && this.stem_direction == -1) ?
this.glyph.head_width : 0);
this.setExtraRightPx((this.displaced && this.stem_direction == 1) ?
this.glyph.head_width : 0);
},
// Pre-render formatting
preFormat: function() {
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 == 1) {
width += this.glyph.head_width;
}
this.setWidth(width);
this.setPreFormatted(true);
},
// Gets the staff line and y value for the highest and lowest noteheads
getNoteHeadBounds: function() {
// Top and bottom Y values for stem.
var y_top = null;
var y_bottom = null;
var highest_line = this.stave.getNumLines();
var lowest_line = 1;
this.note_heads.forEach(function(note_head) {
var line = note_head.getLine();
var y = note_head.getY();
if (y_top === null || y < y_top) {
y_top = y;
}
if (y_bottom === null || y > y_bottom) {
y_bottom = y;
}
highest_line = line > highest_line ? line : highest_line;
lowest_line = line < lowest_line ? line : lowest_line;
}, this);
return {
y_top: y_top,
y_bottom: y_bottom,
highest_line: highest_line,
lowest_line: lowest_line
};
},
// Get the starting `x` coordinate for the noteheads
getNoteHeadBeginX: function(){
return this.getAbsoluteX() + this.x_shift;
},
// Get the ending `x` coordinate for the noteheads
getNoteHeadEndX: function(){
var x_begin = this.getNoteHeadBeginX();
return x_begin + this.glyph.head_width - (Vex.Flow.STEM_WIDTH / 2);
},
// Draw the ledger lines between the stave and the highest/lowest keys
drawLedgerLines: function(){
if (this.isRest()) { return; }
if (!this.context) throw new Vex.RERR("NoCanvasContext",
"Can't draw without a canvas context.");
var ctx = this.context;
var bounds = this.getNoteHeadBounds();
var highest_line = bounds.highest_line;
var lowest_line = bounds.lowest_line;
var head_x = this.note_heads[0].getAbsoluteX();
var that = this;
function stroke(y) {
if (that.use_default_head_x === true) {
head_x = that.getAbsoluteX() + that.x_shift;
}
var x = head_x - that.render_options.stroke_px;
var length = ((head_x + that.glyph.head_width) - head_x) +
(that.render_options.stroke_px * 2);
ctx.fillRect(x, y, length, 1);
}
var line; // iterator
for (line = 6; line <= highest_line; ++line) {
stroke(this.stave.getYForNote(line));
}
for (line = 0; line >= lowest_line; --line) {
stroke(this.stave.getYForNote(line));
}
},
// Draw all key modifiers
drawModifiers: function(){
if (!this.context) throw new Vex.RERR("NoCanvasContext",
"Can't draw without a canvas context.");
var ctx = this.context;
for (var i = 0; i < this.modifiers.length; i++) {
var mod = this.modifiers[i];
var note_head = this.note_heads[mod.getIndex()];
var key_style = note_head.getStyle();
if(key_style) {
ctx.save();
note_head.applyStyle(ctx);
}
mod.setContext(ctx);
mod.draw();
if(key_style) {
ctx.restore();
}
}
},
// Draw the flag for the note
drawFlag: function(){
if (!this.context) throw new Vex.RERR("NoCanvasContext",
"Can't draw without a canvas context.");
var ctx = this.context;
var glyph = this.getGlyph();
var render_flag = this.beam === null;
var bounds = this.getNoteHeadBounds();
var x_begin = this.getNoteHeadBeginX();
var x_end = this.getNoteHeadEndX();
if (glyph.flag && render_flag) {
var note_stem_height = this.stem.getHeight();
var flag_x, flag_y, flag_code;
if (this.getStemDirection() === Stem.DOWN) {
// Down stems have flags on the left.
flag_x = x_begin + 1;
flag_y = bounds.y_top - note_stem_height + 2;
flag_code = glyph.code_flag_downstem;
} else {
// Up stems have flags on the left.
flag_x = x_end + 1;
flag_y = bounds.y_bottom - note_stem_height - 2;
flag_code = glyph.code_flag_upstem;
}
// Draw the Flag
Vex.Flow.renderGlyph(ctx, flag_x, flag_y,
this.render_options.glyph_font_scale, flag_code);
}
},
// Draw the NoteHeads
drawNoteHeads: function(){
this.note_heads.forEach(function(note_head) {
note_head.setContext(this.context).draw();
}, this);
},
// Render the stem onto the canvas
drawStem: function(stem_struct){
if (!this.context) throw new Vex.RERR("NoCanvasContext",
"Can't draw without a canvas context.");
if (stem_struct) {
this.setStem(new Stem(stem_struct));
}
this.stem.setContext(this.context).draw();
},
// Draws all the `StaveNote` parts. This is the main drawing method.
draw: function() {
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 x_begin = this.getNoteHeadBeginX();
var x_end = this.getNoteHeadEndX();
var render_stem = this.hasStem() && !this.beam;
// Format note head x positions
this.note_heads.forEach(function(note_head) {
note_head.setX(x_begin);
}, this);
// Format stem x positions
this.stem.setNoteHeadXBounds(x_begin, x_end);
L("Rendering ", this.isChord() ? "chord :" : "note :", this.keys);
// Draw each part of the note
this.drawLedgerLines();
if (render_stem) this.drawStem();
this.drawNoteHeads();
this.drawFlag();
this.drawModifiers();
}
});
return StaveNote;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
//
// The file implements notes for Tablature notation. This consists of one or
// more fret positions, and can either be drawn with or without stems.
//
// See `tests/tabnote_tests.js` for usage examples
Vex.Flow.TabNote = (function() {
function TabNote(tab_struct, draw_stem) {
if (arguments.length > 0) this.init(tab_struct, draw_stem);
}
var Stem = Vex.Flow.Stem;
// ## Prototype Methods
Vex.Inherit(TabNote, Vex.Flow.StemmableNote, {
// Initialize the TabNote with a `tab_struct` full of properties
// and whether to `draw_stem` when rendering the note
init: function(tab_struct, draw_stem) {
var superclass = Vex.Flow.TabNote.superclass;
superclass.init.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 =
Vex.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();
},
// The ModifierContext category
getCategory: function() { return "tabnotes"; },
// Set as ghost `TabNote`, surrounds the fret positions with parenthesis.
// Often used for indicating frets that are being bent to
setGhost: function(ghost) {
this.ghost = ghost;
this.updateWidth();
return this;
},
// Determine if the note has a stem
hasStem: function() { return this.render_options.draw_stem; },
// Get the default stem extension for the note
getStemExtension: function(){
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
addDot: function() {
var dot = new Vex.Flow.Dot();
this.dots++;
return this.addModifier(dot, 0);
},
// Calculate and store the width of the note
updateWidth: function() {
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 = Vex.Flow.tabToGlyph(fret);
this.glyphs.push(glyph);
this.width = (glyph.width > this.width) ? glyph.width : this.width;
}
},
// Set the `stave` to the note
setStave: function(stave) {
var superclass = Vex.Flow.TabNote.superclass;
superclass.setStave.call(this, stave);
this.context = stave.context;
this.width = 0;
// Calculate the fret number width based on font used
var i;
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
getPositions: function() { return this.positions; },
// Add self to the provided modifier context `mc`
addToModifierContext: function(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
getTieRightX: function() {
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
getTieLeftX: function() {
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`
getModifierStartXY: function(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 == Vex.Flow.Modifier.Position.LEFT) {
x = -1 * 2; // extra_left_px
} else if (position == Vex.Flow.Modifier.Position.RIGHT) {
x = this.width + 2; // extra_right_px
} else if (position == Vex.Flow.Modifier.Position.BELOW ||
position == Vex.Flow.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
getLineForRest: function() { return this.positions[0].str; },
// Pre-render formatting
preFormat: function() {
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
getStemX: function() { return this.getCenterGlyphX(); },
// Get the y position for the stem
getStemY: function(){
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
getStemExtents: function() {
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
drawFlag: function() {
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;
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
Vex.Flow.renderGlyph(this.context, flag_x, flag_y,
this.render_options.glyph_font_scale, flag_code);
}
},
// Render the modifiers onto the context
drawModifiers: function() {
// Draw the modifiers
this.modifiers.forEach(function(modifier) {
// Only draw the dots if enabled
if (modifier.getCategory() === 'dots' && !this.render_options.draw_dots) return;
modifier.setContext(this.context);
modifier.draw();
}, this);
},
// Render the stem extension through the fret positions
drawStemThrough: function() {
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) {
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
drawPositions: function() {
var ctx = this.context;
var x = this.getAbsoluteX();
var ys = this.ys;
var y;
for (var i = 0; i < this.positions.length; ++i) {
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) {
Vex.Flow.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
draw: function() {
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();
}
});
// ## Private Helpers
//
// 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;
}
return TabNote;
}());
// Vex Flow Notation
// Mohit Muthanna <mohit@muthanna.com>
//
// Copyright Mohit Muthanna 2010
//
// Requires vex.js.
/** @constructor */
Vex.Flow.GhostNote = (function() {
function GhostNote(duration) {
if (arguments.length > 0) this.init(duration);
}
Vex.Inherit(GhostNote, Vex.Flow.StemmableNote, {
init: function(parameter) {
// Sanity check
if (!parameter) {
throw new Vex.RuntimeError("BadArguments",
"Ghost note must have valid initialization data to identify " +
"duration.");
}
var note_struct;
// Preserve backwards-compatibility
if (typeof(parameter) === "string") {
note_struct = { duration: parameter };
} else if (typeof(parameter) === "object") {
note_struct = parameter;
} else {
throw new Vex.RuntimeError("BadArguments",
"Ghost note must have valid initialization data to identify " +
"duration.");
}
GhostNote.superclass.init.call(this, note_struct);
// Note properties
this.setWidth(0);
},
isRest: function() { return true; },
setStave: function(stave) { GhostNote.superclass.setStave.call(this, stave); },
addToModifierContext: function()
{ /* intentionally overridden */ return this; },
preFormat: function() {
this.setPreFormatted(true);
return this;
},
draw: function() {
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;
}());
// Vex Flow Notation
// Copyright Mohit Muthanna 2010
//
// Author Taehoon Moon 2014
/** @constructor */
Vex.Flow.ClefNote = (function() {
function ClefNote(clef, size, annotation) { this.init(clef, size, annotation); }
Vex.Inherit(ClefNote, Vex.Flow.Note, {
init: function(clef, size, annotation) {
ClefNote.superclass.init.call(this, {duration: "b"});
this.setClef(clef, size, annotation);
// Note properties
this.ignore_ticks = true;
},
setClef: function(clef, size, annotation) {
this.clef_obj = new Vex.Flow.Clef(clef, size, annotation);
this.clef = this.clef_obj.clef;
this.glyph = new Vex.Flow.Glyph(this.clef.code, this.clef.point);
this.setWidth(this.glyph.getMetrics().width);
return this;
},
getClef: function() {
return this.clef;
},
setStave: function(stave) {
var superclass = Vex.Flow.ClefNote.superclass;
superclass.setStave.call(this, stave);
},
getBoundingBox: function() {
return new Vex.Flow.BoundingBox(0, 0, 0, 0);
},
addToModifierContext: function() {
/* overridden to ignore */
return this;
},
getCategory: function() {
return "clefnote";
},
preFormat: function() {
this.setPreFormatted(true);
return this;
},
draw: function() {
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 Vex.Flow.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;
}());
// Vex Flow Notation
// Copyright Mohit Muthanna 2010
//
// Author Taehoon Moon 2014
/** @constructor */
Vex.Flow.TimeSigNote = (function() {
function TimeSigNote(timeSpec, customPadding) {
if (arguments.length > 0) this.init(timeSpec, customPadding);
}
Vex.Inherit(TimeSigNote, Vex.Flow.Note, {
init: function(timeSpec, customPadding) {
TimeSigNote.superclass.init.call(this, {duration: "b"});
var timeSignature = new Vex.Flow.TimeSignature(timeSpec, customPadding);
this.timeSig = timeSignature.getTimeSig();
this.setWidth(this.timeSig.glyph.getMetrics().width);
// Note properties
this.ignore_ticks = true;
},
setStave: function(stave) {
var superclass = Vex.Flow.TimeSigNote.superclass;
superclass.setStave.call(this, stave);
},
getBoundingBox: function() {
return new Vex.Flow.BoundingBox(0, 0, 0, 0);
},
addToModifierContext: function() {
/* overridden to ignore */
return this;
},
preFormat: function() {
this.setPreFormatted(true);
return this;
},
draw: function() {
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;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
//
// This file implements `Beams` that span over a set of `StemmableNotes`.
//
// Requires: vex.js, vexmusic.js, note.js
Vex.Flow.Beam = (function() {
function Beam(notes, auto_stem) {
if (arguments.length > 0) this.init(notes, auto_stem);
}
var Stem = Vex.Flow.Stem;
// ## Prototype Methods
Beam.prototype = {
init: function(notes, auto_stem) {
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 >= Vex.Flow.durationToTicks("4")) {
throw new Vex.RuntimeError("BadArguments",
"Beams can only be applied to notes shorter than a quarter note.");
}
var i; // shared iterator
var note;
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
};
},
// The the rendering `context`
setContext: function(context) { this.context = context; return this; },
// Get the notes in this beam
getNotes: function() { return this.notes; },
// Get the max number of beams in the set of notes
getBeamCount: function(){
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
breakSecondaryAt: function(indices) {
this.break_on_indices = indices;
return this;
},
// Return the y coordinate for linear function
getSlopeY: function(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
calculateSlope: function() {
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 i = 1; i < this.notes.length; ++i) {
var note = this.notes[i];
var x_px = note.getStemX();
var y_px = note.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 * i);
} 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;
},
// Create new stems for the notes in the beam, so that each stem
// extends into the beams.
applyStemExtensions: function(){
var first_note = this.notes[0];
var first_y_px = first_note.getStemExtents().topY;
var first_x_px = first_note.getStemX();
for (var i = 0; i < this.notes.length; ++i) {
var note = this.notes[i];
var x_px = note.getStemX();
var y_extents = note.getStemExtents();
var base_y_px = y_extents.baseY;
var top_y_px = y_extents.topY;
// For harmonic note heads, shorten stem length by 3 pixels
base_y_px += this.stem_direction * note.glyph.stem_offset;
// Don't go all the way to the top (for thicker stems)
var y_displacement = Vex.Flow.STEM_WIDTH;
if (!note.hasStem()) {
if (note.isRest() && this.render_options.show_stemlets) {
var centerGlyphX = note.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 + (Vex.Flow.Stem.HEIGHT * this.stem_direction);
var end_y = beam_y + (stemlet_height * this.stem_direction);
// Draw Stemlet
note.setStem(new Vex.Flow.Stem({
x_begin: centerGlyphX,
x_end: centerGlyphX,
y_bottom: this.stem_direction === 1 ? end_y : start_y,
y_top: this.stem_direction === 1 ? 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;
note.setStem(new Vex.Flow.Stem({
x_begin: x_px - (Vex.Flow.STEM_WIDTH/2),
x_end: x_px,
y_top: this.stem_direction === 1 ? top_y_px : base_y_px,
y_bottom: this.stem_direction === 1 ? 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`
getBeamLines: function(duration) {
var beam_lines = [];
var beam_started = false;
var current_beam;
var partial_beam_length = this.render_options.partial_beam_length;
function determinePartialSide (prev_note, next_note){
// Compare beam counts and store differences
var unshared_beams = 0;
if (next_note && prev_note) {
unshared_beams = prev_note.getBeamCount() - next_note.getBeamCount();
}
var left_partial = duration !== "8" && unshared_beams > 0;
var right_partial = duration !== "8" && unshared_beams < 0;
return {
left: left_partial,
right: right_partial
};
}
for (var i = 0; i < this.notes.length; ++i) {
var note = this.notes[i];
var prev_note = this.notes[i-1];
var next_note = this.notes[i+1];
var ticks = note.getIntrinsicTicks();
var partial = determinePartialSide(prev_note, next_note);
var stem_x = note.isRest() ? note.getCenterGlyphX() : note.getStemX();
// Check whether to apply beam(s)
if (ticks < Vex.Flow.durationToTicks(duration)) {
if (!beam_started) {
var new_line = {start: stem_x, end: null};
if (partial.left) {
new_line.end = stem_x - partial_beam_length;
}
beam_lines.push(new_line);
beam_started = true;
} else {
current_beam = beam_lines[beam_lines.length - 1];
current_beam.end = stem_x;
// Should break secondary beams on note
var should_break = this.break_on_indices.indexOf(i) !== -1;
// Shorter than or eq an 8th note duration
var can_break = parseInt(duration, 10) >= 8;
if (should_break && can_break) {
beam_started = false;
}
}
} else {
if (!beam_started) {
// we don't care
} else {
current_beam = beam_lines[beam_lines.length - 1];
if (current_beam.end == null) {
// single note
current_beam.end = current_beam.start +
partial_beam_length;
} else {
// we don't care
}
}
beam_started = false;
}
}
if (beam_started === true) {
current_beam = beam_lines[beam_lines.length - 1];
if (current_beam.end == null) {
// single note
current_beam.end = current_beam.start -
partial_beam_length;
}
}
return beam_lines;
},
// Render the stems for each notes
drawStems: function() {
this.notes.forEach(function(note) {
if (note.getStem()) {
note.getStem().setContext(this.context).draw();
}
}, this);
},
// Render the beam lines
drawBeamLines: function() {
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 last_note = this.notes[this.notes.length - 1];
var first_y_px = first_note.getStemExtents().topY;
var last_y_px = last_note.getStemExtents().topY;
var first_x_px = first_note.getStemX();
var beam_width = this.render_options.beam_width * this.stem_direction;
// Draw the beams.
for (var i = 0; i < valid_beam_durations.length; ++i) {
var duration = valid_beam_durations[i];
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 ? Vex.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 ? (Vex.Flow.STEM_WIDTH/3):(-Vex.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;
last_y_px += beam_width * 1.5;
}
},
// Pre-format the beam
preFormat: function() { 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
postFormat: function() {
if (this.postFormatted) return;
this.calculateSlope();
this.applyStemExtensions();
this.postFormatted = true;
},
// Render the beam to the canvas context
draw: function() {
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 true;
}
};
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;
}
// ## Static Methods
//
// 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.
Beam.getDefaultBeamGroups = function(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 Fraction = Vex.Flow.Fraction;
var groups = defaults[time_sig];
if (!groups) {
// 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);
});
}
};
// 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
Beam.applyAndGetBeams = function(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
//
Beam.generateBeams = function(notes, config) {
if (!config) config = {};
if (!config.groups || !config.groups.length) {
config.groups = [new Vex.Flow.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(Vex.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 Vex.Flow.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 = Vex.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() >= Vex.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;
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 note = group[i];
if (!note.isRest()) {
return note;
}
}
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;
});
}
// 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 Vex.Flow.Beam(group);
if (config.show_stemlets) {
beam.render_options.show_stemlets = true;
}
beams.push(beam);
});
// Reformat tuplets
tupletGroups.forEach(function(group){
var firstNote = group[0];
for (var i=0; i<group.length; ++i) {
if (group[i].hasStem()) {
firstNote = group[i];
break;
}
}
var tuplet = firstNote.tuplet;
if (firstNote.beam) tuplet.setBracketed(false);
if (firstNote.stem_direction == Stem.DOWN) {
tuplet.setTupletLocation(Vex.Flow.Tuplet.LOCATION_BOTTOM);
}
});
return beams;
};
return Beam;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
//
// This file implements the main Voice class. It's mainly a container
// object to group `Tickables` for formatting.
Vex.Flow.Voice = (function() {
function Voice(time) {
if (arguments.length > 0) this.init(time);
}
// 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.
Voice.Mode = {
STRICT: 1,
SOFT: 2,
FULL: 3
};
// ## Prototype Methods
Voice.prototype = {
init: function(time) {
this.time = Vex.Merge({
num_beats: 4,
beat_value: 4,
resolution: Vex.Flow.RESOLUTION
}, time);
// Recalculate total ticks.
this.totalTicks = new Vex.Flow.Fraction(
this.time.num_beats * (this.time.resolution / this.time.beat_value), 1);
this.resolutionMultiplier = 1;
// Set defaults
this.tickables = [];
this.ticksUsed = new Vex.Flow.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 = Vex.Flow.Voice.Mode.STRICT;
// This must belong to a VoiceGroup
this.voiceGroup = null;
},
// Get the total ticks in the voice
getTotalTicks: function() { return this.totalTicks; },
// Get the total ticks used in the voice by all the tickables
getTicksUsed: function() { return this.ticksUsed; },
// Get the largest width of all the tickables
getLargestTickWidth: function() { return this.largestTickWidth; },
// Get the tick count for the shortest tickable
getSmallestTickCount: function() { return this.smallestTickCount; },
// Get the tickables in the voice
getTickables: function() { return this.tickables; },
// Get/set the voice mode, use a value from `Voice.Mode`
getMode: function() { return this.mode; },
setMode: function(mode) { this.mode = mode; return this; },
// Get the resolution multiplier for the voice
getResolutionMultiplier: function() { return this.resolutionMultiplier; },
// Get the actual tick resolution for the voice
getActualResolution: function() { return this.resolutionMultiplier * this.time.resolution; },
// Set the voice's stave
setStave: function(stave) {
this.stave = stave;
this.boundingBox = null; // Reset bounding box so we can reformat
return this;
},
// Get the bounding box for the voice
getBoundingBox: function() {
var stave, boundingBox, bb, i;
if (!this.boundingBox) {
if (!this.stave) throw 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.
getVoiceGroup: function() {
if (!this.voiceGroup)
throw new Vex.RERR("NoVoiceGroup", "No voice group for voice.");
return this.voiceGroup;
},
// Set the voice group
setVoiceGroup: function(g) { this.voiceGroup = g; return this; },
// Set the voice mode to strict or soft
setStrict: function(strict) {
this.mode = strict ? Vex.Flow.Voice.Mode.STRICT : Vex.Flow.Voice.Mode.SOFT;
return this;
},
// Determine if the voice is complete according to the voice mode
isComplete: function() {
if (this.mode == Vex.Flow.Voice.Mode.STRICT ||
this.mode == Vex.Flow.Voice.Mode.FULL) {
return this.ticksUsed.equals(this.totalTicks);
} else {
return true;
}
},
// Add a tickable to the voice
addTickable: function(tickable) {
if (!tickable.shouldIgnoreTicks()) {
var ticks = tickable.getTicks();
// Update the total ticks for this line.
this.ticksUsed.add(ticks);
if ((this.mode == Vex.Flow.Voice.Mode.STRICT ||
this.mode == Vex.Flow.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.
addTickables: function(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.
preFormat: function(){
if (this.preFormatted) return;
this.tickables.forEach(function(tickable) {
if (!tickable.getStave()) {
tickable.setStave(this.stave);
}
}, this);
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.
draw: function(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;
}());
// Vex Music Notation
// Mohit Muthanna <mohit@muthanna.com>
//
// Copyright Mohit Muthanna 2010
/** @constructor */
Vex.Flow.VoiceGroup = (function() {
function VoiceGroup() {
this.init();
}
VoiceGroup.prototype = {
init: function() {
this.voices = [];
this.modifierContexts = [];
},
// Every tickable must be associated with a voiceGroup. This allows formatters
// and preformatters to associate them with the right modifierContexts.
getVoices: function() { return this.voices; },
getModifierContexts: function() { return this.modifierContexts; },
addVoice: function(voice) {
if (!voice) throw new Vex.RERR("BadArguments", "Voice cannot be null.");
this.voices.push(voice);
voice.setVoiceGroup(this);
}
};
return VoiceGroup;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
//
// `Modifier` is an abstract interface for notational elements that modify
// a `Note`. Examples of modifiers are `Accidental`, `Annotation`, `Stroke`, etc.
//
// For a `Modifier` instance to be positioned correctly, it must be part of
// a `ModifierContext`. All modifiers in the same context are rendered relative to
// one another.
//
// Typically, all modifiers to a note are part of the same `ModifierContext` instance. Also,
// in multi-voice staves, all modifiers to notes on the same `tick` are part of the same
// `ModifierContext`. This ensures that multiple voices don't trample all over each other.
Vex.Flow.Modifier = (function() {
function Modifier() {
this.constructor = Modifier;
this.init();
}
Modifier.CATEGORY = "none";
// To enable logging for this class. Set `Vex.Flow.Modifier.DEBUG` to `true`.
function L() { if (Modifier.DEBUG) Vex.L("Vex.Flow.Modifier", arguments); }
// Modifiers can be positioned almost anywhere, relative to a note.
Modifier.Position = {
LEFT: 1,
RIGHT: 2,
ABOVE: 3,
BELOW: 4
};
// ## Prototype Methods
Modifier.prototype = {
// The constructor sets initial widths and constants.
init: function() {
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;
L("Created new modifier");
},
// Every modifier has a category. The `ModifierContext` uses this to determine
// the type and order of the modifiers.
getCategory: function() { return this.constructor.CATEGORY; },
// Get and set modifier widths.
getWidth: function() { return this.width; },
setWidth: function(width) { this.width = width; return this; },
// Get and set attached note (`StaveNote`, `TabNote`, etc.)
getNote: function() { return this.note; },
setNote: function(note) { this.note = note; return this; },
// Get and set note index, which is a specific note in a chord.
getIndex: function() { return this.index; },
setIndex: function(index) { this.index = index; return this; },
// Get and set rendering context.
getContext: function() { return this.context; },
setContext: function(context) { this.context = context; return this; },
// Every modifier must be part of a `ModifierContext`.
getModifierContext: function() { return this.modifier_context; },
setModifierContext: function(c) { this.modifier_context = c; return this; },
// Get and set articulation position.
getPosition: function() { return this.position; },
setPosition: function(position) { this.position = position; return this; },
// Set the `text_line` for the modifier.
setTextLine: function(line) { this.text_line = line; return this; },
// Shift modifier down `y` pixels. Negative values shift up.
setYShift: function(y) { this.y_shift = y; return this; },
// Shift modifier `x` pixels in the direction of the modifier. Negative values
// shift reverse.
setXShift: function(x) {
this.x_shift = 0;
if (this.position == Modifier.Position.LEFT) {
this.x_shift -= x;
} else {
this.x_shift += x;
}
},
// Render the modifier onto the canvas.
draw: function() {
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;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
//
// This class implements various types of modifiers to notes (e.g. bends,
// fingering positions etc.)
Vex.Flow.ModifierContext = (function() {
function 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
};
// Add new modifiers to this array. The ordering is significant -- lower
// modifiers are formatted and rendered before higher ones.
this.PREFORMAT = [
Vex.Flow.StaveNote,
Vex.Flow.Dot,
Vex.Flow.FretHandFinger,
Vex.Flow.Accidental,
Vex.Flow.GraceNoteGroup,
Vex.Flow.Stroke,
Vex.Flow.StringNumber,
Vex.Flow.Articulation,
Vex.Flow.Ornament,
Vex.Flow.Annotation,
Vex.Flow.Bend,
Vex.Flow.Vibrato
];
// If post-formatting is required for an element, add it to this array.
this.POSTFORMAT = [ Vex.Flow.StaveNote ];
}
// To enable logging for this class. Set `Vex.Flow.ModifierContext.DEBUG` to `true`.
function L() { if (ModifierContext.DEBUG) Vex.L("Vex.Flow.ModifierContext", arguments); }
ModifierContext.prototype = {
addModifier: function(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;
},
getModifiers: function(type) { return this.modifiers[type]; },
getWidth: function() { return this.width; },
getExtraLeftPx: function() { return this.state.left_shift; },
getExtraRightPx: function() { return this.state.right_shift; },
getState: function() { return this.state; },
getMetrics: function() {
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
};
},
preFormat: function() {
if (this.preFormatted) return;
this.PREFORMAT.forEach(function(modifier) {
L("Preformatting ModifierContext: ", modifier.CATEGORY);
modifier.format(this.getModifiers(modifier.CATEGORY), this.state, this);
}, this);
// Update width of this modifier context
this.width = this.state.left_shift + this.state.right_shift;
this.preFormatted = true;
},
postFormat: function() {
if (this.postFormatted) return;
this.POSTFORMAT.forEach(function(modifier) {
L("Postformatting ModifierContext: ", modifier.CATEGORY);
modifier.postFormat(this.getModifiers(modifier.CATEGORY), this);
}, this);
}
};
return ModifierContext;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
// @author Mohit Cheppudira
// @author Greg Ristow (modifications)
//
// ## Description
//
// This file implements accidentals as modifiers that can be attached to
// notes. Support is included for both western and microtonal accidentals.
//
// See `tests/accidental_tests.js` for usage examples.
Vex.Flow.Accidental = (function(){
function Accidental(type) {
if (arguments.length > 0) this.init(type);
}
Accidental.CATEGORY = "accidentals";
// To enable logging for this class. Set `Vex.Flow.Accidental.DEBUG` to `true`.
function L() { if (Accidental.DEBUG) Vex.L("Vex.Flow.Accidental", arguments); }
var Modifier = Vex.Flow.Modifier;
// ## Static Methods
//
// Arrange accidentals inside a ModifierContext.
Accidental.format = function(accidentals, state) {
var left_shift = state.left_shift;
var accidental_spacing = 2;
// If there are no accidentals, we needn't format their positions
if (!accidentals || accidentals.length === 0) return false;
var acc_list = [];
var hasStave = false;
var prev_note = null;
var shiftL = 0;
// First determine the accidentals' Y positions from the note.keys
var i, acc, props_tmp;
for (i = 0; i < accidentals.length; ++i) {
acc = accidentals[i];
var note = acc.getNote();
var stave = note.getStave();
var props = note.getKeyProps()[acc.getIndex()];
if (note != prev_note) {
// Iterate through all notes to get the displaced pixels
for (var n = 0; n < note.keys.length; ++n) {
props_tmp = note.getKeyProps()[n];
shiftL = (props_tmp.displaced ? note.getExtraLeftPx() : shiftL);
}
prev_note = note;
}
if (stave !== null) {
hasStave = true;
var line_space = stave.options.spacing_between_lines_px;
var y = stave.getYForLine(props.line);
var acc_line = Math.round(y / line_space * 2)/2;
acc_list.push({ y: y, line: acc_line, shift: shiftL, acc: acc, lineSpace: line_space });
} else {
acc_list.push({ line: props.line, shift: shiftL, acc: acc });
}
}
// Sort accidentals by line number.
acc_list.sort(function(a, b) { return (b.line - a.line); });
// Create an array of unique line numbers (line_list) from acc_list
var line_list = []; // an array of unique line numbers
var acc_shift = 0; // amount by which all accidentals must be shifted right or left for stem flipping, notehead shifting concerns.
var previous_line = null;
for(i = 0; i<acc_list.length; i++) {
acc = acc_list[i];
// if this is the first line, or a new line, add a line_list
if( (previous_line === null) || (previous_line != acc.line) ) {
line_list.push({line : acc.line, flat_line : true, dbl_sharp_line: true, num_acc : 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.
if( (acc.acc.type != "b") && (acc.acc.type !="bb") ) {
line_list[line_list.length - 1].flat_line = false;
}
// if this accidental is not a double sharp, the accidental needs 3.0 lines above
if( acc.acc.type != "##")
line_list[line_list.length - 1].dbl_sharp_line = false;
// Track how many accidentals are on this line:
line_list[line_list.length - 1].num_acc++;
// 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
line_list[line_list.length - 1].width += acc.acc.getWidth() + accidental_spacing;
// if this acc_shift is larger, use it to keep first column accidentals in the same line
acc_shift = ( (acc.shift > acc_shift) ? acc.shift : acc_shift);
previous_line = 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 colission 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 total_columns = 0;
// establish the boundaries for a group of notes with clashing accidentals:
for(i = 0; i<line_list.length; i++) {
var no_further_conflicts = false;
var group_start = i;
var group_end = i;
group_check_while : while( (group_end+1 < line_list.length) && (!no_further_conflicts) ) {
// if this note conflicts with the next:
if(this.checkCollision(line_list[group_end], line_list[group_end + 1])) {
// include the next note in the group:
group_end++;
}
else no_further_conflicts = true;
}
// Set columns for the lines in this group:
var group_length = group_end - group_start + 1;
// Set the accidental column for each line of the group
var end_case = (this.checkCollision(line_list[group_start], line_list[group_end])) ? "a" : "b";
var checkCollision = this.checkCollision;
switch(group_length) {
case 3:
if( (end_case == "a") &&
(line_list[group_start+1].line - line_list[group_start+2].line == 0.5) &&
(line_list[group_start].line - line_list[group_start + 1].line != 0.5) )
end_case = "second_on_bottom";
break;
case 4:
if( (!checkCollision(line_list[group_start], line_list[group_start+2])) &&
(!checkCollision(line_list[group_start+1], line_list[group_start+3])) )
end_case = "spaced_out_tetrachord";
break;
case 5:
if( (end_case == "b") &&
(!checkCollision(line_list[group_start+1], line_list[group_start+3])) )
end_case = "spaced_out_pentachord";
if( (end_case == "spaced_out_pentachord") &&
(!checkCollision(line_list[group_start], line_list[group_start+2])) &&
(!checkCollision(line_list[group_start+2], line_list[group_start+4])) )
end_case = "very_spaced_out_pentachord";
break;
case 6:
if( (!checkCollision(line_list[group_start], line_list[group_start+3])) &&
(!checkCollision(line_list[group_start+1], line_list[group_start+4])) &&
(!checkCollision(line_list[group_start+2], line_list[group_start+5])) )
end_case = "spaced_out_hexachord";
if( (!checkCollision(line_list[group_start], line_list[group_start+2])) &&
(!checkCollision(line_list[group_start+2], line_list[group_start+4])) &&
(!checkCollision(line_list[group_start+1], line_list[group_start+3])) &&
(!checkCollision(line_list[group_start+3], line_list[group_start+5])) )
end_case = "very_spaced_out_hexachord";
break;
}
var group_member;
var column;
// If the group contains more than seven members, use ascending parallel lines
// of accidentals, using as few columns as possible while avoiding collisions.
if (group_length>=7) {
// First, determine how many columns to use:
var pattern_length = 2;
var colission_detected = true;
while(colission_detected === true) {
colission_detected = false;
colission_detecter : for(var line = 0; line + pattern_length < line_list.length; line++) {
if(this.checkCollision(line_list[line], line_list[line+pattern_length])) {
colission_detected = true;
pattern_length++;
break colission_detecter;
}
}
}
// Then, assign a column to each line of accidentals
for(group_member = i; group_member <= group_end; group_member++) {
column = ((group_member-i) % pattern_length) + 1;
line_list[group_member].column = column;
total_columns = (total_columns > column) ? total_columns : column;
}
// Otherwise, if the group contains fewer than seven members, use the layouts from
// the accidentalsColumnsTable housed in tables.js.
} else {
for(group_member = i; group_member <= group_end; group_member++) {
column = Vex.Flow.accidentalColumnsTable[group_length][end_case][group_member-i];
line_list[group_member].column = column;
total_columns = (total_columns > column) ? total_columns : 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.
i = group_end;
}
// ### 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 column_widths = [];
var column_x_offsets = [];
for(i=0; i<=total_columns; i++) {
column_widths[i] = 0;
column_x_offsets[i] = 0;
}
column_widths[0] = acc_shift + left_shift;
column_x_offsets[0] = acc_shift + left_shift;
// Fill column_widths with widest needed x-space;
// this is what keeps the columns parallel.
line_list.forEach(function(line) {
if(line.width > column_widths[line.column]) column_widths[line.column] = line.width;
});
for(i=1; i<column_widths.length; i++) {
// this column's offset = this column's width + previous column's offset
column_x_offsets[i] = column_widths[i] + column_x_offsets[i-1];
}
// Set the x_shift for each accidental according to column offsets:
var acc_count = 0;
line_list.forEach(function(line) {
var line_width = 0;
var last_acc_on_line = acc_count + line.num_acc;
// handle all of the accidentals on a given line:
for(acc_count; acc_count<last_acc_on_line; acc_count++) {
var x_shift = (column_x_offsets[line.column-1] + line_width);
acc_list[acc_count].acc.setXShift(x_shift);
// keep track of the width of accidentals we've added so far, so that when
// we loop, we add space for them.
line_width += acc_list[acc_count].acc.getWidth() + accidental_spacing;
L("Line, acc_count, shift: ", line.line, acc_count, x_shift);
}
});
// update the overall layout with the full width of the accidental shapes:
state.left_shift += column_x_offsets[column_x_offsets.length-1];
};
// Helper function to determine whether two lines of accidentals collide vertically
Accidental.checkCollision = function(line_1, line_2) {
var clearance = line_2.line - line_1.line;
var clearance_required = 3;
// But less clearance is required for certain accidentals: b, bb and ##.
if(clearance>0) { // then line 2 is on top
clearance_required = (line_2.flat_line || line_2.dbl_sharp_line) ? 2.5 : 3.0;
if(line_1.dbl_sharp_line) clearance -= 0.5;
} else { // line 1 is on top
clearance_required = (line_1.flat_line || line_1.dbl_sharp_line) ? 2.5 : 3.0;
if(line_2.dbl_sharp_line) clearance -= 0.5;
}
var colission = (Math.abs(clearance) < clearance_required);
L("Line_1, Line_2, Collision: ", line_1.line, line_2.line, colission);
return(colission);
};
// ## Prototype Methods
//
// An `Accidental` inherits from `Modifier`, and is formatted within a
// `ModifierContext`.
Vex.Inherit(Accidental, Modifier, {
// Create accidental. `type` can be a value from the
// `Vex.Flow.accidentalCodes.accidentals` table in `tables.js`. For
// example: `#`, `##`, `b`, `n`, etc.
init: function(type) {
Accidental.superclass.init.call(this);
L("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 = Vex.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.paren_left = null;
this.paren_right = null;
// Initial width is set from table.
this.setWidth(this.accidental.width);
},
// Attach this accidental to `note`, which must be a `StaveNote`.
setNote: function(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.
setAsCautionary: function() {
this.cautionary = true;
this.render_options.font_scale = 28;
this.paren_left = Vex.Flow.accidentalCodes("{");
this.paren_right = Vex.Flow.accidentalCodes("}");
var width_adjust = (this.type == "##" || this.type == "bb") ? 6 : 4;
// Make sure `width` accomodates for parentheses.
this.setWidth(this.paren_left.width + this.accidental.width + this.paren_right.width - width_adjust);
return this;
},
// Render accidental onto canvas.
draw: function() {
if (!this.context) throw new Vex.RERR("NoContext",
"Can't draw accidental without a context.");
if (!(this.note && (this.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 this note and index.
var start = this.note.getModifierStartXY(this.position, this.index);
var acc_x = (start.x + this.x_shift) - this.width;
var acc_y = start.y + this.y_shift;
L("Rendering: ", this.type, acc_x, acc_y);
if (!this.cautionary) {
// Render the accidental alone.
Vex.Flow.renderGlyph(this.context, acc_x, acc_y,
this.render_options.font_scale, this.accidental.code);
} else {
// Render the accidental in parentheses.
acc_x += 3;
Vex.Flow.renderGlyph(this.context, acc_x, acc_y,
this.render_options.font_scale, this.paren_left.code);
acc_x += 2;
Vex.Flow.renderGlyph(this.context, acc_x, acc_y,
this.render_options.font_scale, this.accidental.code);
acc_x += this.accidental.width - 2;
if (this.type == "##" || this.type == "bb") acc_x -= 2;
Vex.Flow.renderGlyph(this.context, acc_x, acc_y,
this.render_options.font_scale, this.paren_right.code);
}
}
});
// ## Static Methods
//
// 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`.
Accidental.applyAccidentals = function(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 Vex.Flow.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 Vex.Flow.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 Vex.Flow.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);
}
});
});
});
};
return Accidental;
}());
// VexFlow - Music Engraving for HTML5
// Copyright Mohit Muthanna 2010
//
// This class implements dot modifiers for notes.
/**
* @constructor
*/
Vex.Flow.Dot = (function() {
function Dot() {
this.init();
}
Dot.CATEGORY = "dots";
var Modifier = Vex.Flow.Modifier;
// Arrange dots inside a ModifierContext.
Dot.format = function(dots, state) {
var right_shift = state.right_shift;
var dot_spacing = 1;
if (!dots || dots.length === 0) return false;
var i, dot, note, shift;
var dot_list = [];
for (i = 0; i < dots.length; ++i) {
dot = dots[i];
note = dot.getNote();
var props;
// 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 (i = 0; i < dot_list.length; ++i) {
dot = dot_list[i].dot;
note = dot_list[i].note;
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;
};
Vex.Inherit(Dot, Modifier, {
init: function() {
Dot.superclass.init.call(this);
this.note = null;
this.index = null;
this.position = Modifier.Position.RIGHT;
this.radius = 2;
this.setWidth(5);
this.dot_shiftY = 0;
},
setNote: function(note){
this.note = note;
if (this.note.getCategory() === 'gracenotes') {
this.radius *= 0.50;
this.setWidth(3);
}
},
setDotShiftY: function(y) { this.dot_shiftY = y; return this; },
draw: function() {
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 line_space = 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 dot_x = (start.x + this.x_shift) + this.width - this.radius;
var dot_y = start.y + this.y_shift + (this.dot_shiftY * line_space);
var ctx = this.context;
ctx.beginPath();
ctx.arc(dot_x, dot_y, this.radius, 0, Math.PI * 2, false);
ctx.fill();
}
});
return Dot;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
//
// This file implements the formatting and layout algorithms that are used
// to position notes in a voice. The algorithm can align multiple voices both
// within a stave, and across multiple staves.
//
// To do this, the formatter breaks up voices into a grid of rational-valued
// `ticks`, to which each note is assigned. Then, minimum widths are assigned
// to each tick based on the widths of the notes and modifiers in that tick. This
// establishes the smallest amount of space required for each tick.
//
// Finally, the formatter distributes the left over space proportionally to
// all the ticks, setting the `x` values of the notes in each tick.
//
// See `tests/formatter_tests.js` for usage examples. The helper functions included
// here (`FormatAndDraw`, `FormatAndDrawTab`) also serve as useful usage examples.
Vex.Flow.Formatter = (function() {
function 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 Vex.Flow.Fraction(0, 1);
// Arrays of tick and modifier contexts.
this.tContexts = null;
this.mContexts = null;
}
// To enable logging for this class. Set `Vex.Flow.Formatter.DEBUG` to `true`.
function L() { if (Formatter.DEBUG) Vex.L("Vex.Flow.Formatter", arguments); }
// ## Private Helpers
//
// Helper function to locate the next non-rest note(s).
function lookAhead(notes, rest_line, i, compare) {
// If no valid next note group, next_rest_line is same as current.
var next_rest_line = rest_line;
// Get the rest line for next valid non-rest note group.
i++;
while (i < notes.length) {
if (!notes[i].isRest() && !notes[i].shouldIgnoreTicks()) {
next_rest_line = notes[i].getLineForRest();
break;
}
i++;
}
// Locate the mid point between two lines.
if (compare && rest_line != next_rest_line) {
var top = Vex.Max(rest_line, next_rest_line);
var bot = Vex.Min(rest_line, next_rest_line);
next_rest_line = Vex.MidLine(top, bot);
}
return next_rest_line;
}
// Take an array of `voices` and place aligned tickables in the same context. Returns
// a mapping from `tick` to `context_type`, a list of `tick`s, and the resolution
// multiplier.
//
// Params:
// * `voices`: Array of `Voice` instances.
// * `context_type`: A context class (e.g., `ModifierContext`, `TickContext`)
// * `add_fn`: Function to add tickable to context.
function createContexts(voices, context_type, add_fn) {
if (!voices || !voices.length) throw new Vex.RERR("BadArgument",
"No voices to format");
// Initialize tick maps.
var totalTicks = voices[0].getTotalTicks();
var tickToContextMap = {};
var tickList = [];
var contexts = [];
var resolutionMultiplier = 1;
// 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 i; // shared iterator
var voice;
for (i = 0; i < voices.length; ++i) {
voice = voices[i];
if (!(voice.getTotalTicks().equals(totalTicks))) {
throw new Vex.RERR("TickMismatch",
"Voices should have same total note duration in ticks.");
}
if (voice.getMode() == Vex.Flow.Voice.Mode.STRICT && !voice.isComplete())
throw new Vex.RERR("IncompleteVoice",
"Voice does not have enough notes.");
var lcm = Vex.Flow.Fraction.LCM(resolutionMultiplier,
voice.getResolutionMultiplier());
if (resolutionMultiplier < lcm) {
resolutionMultiplier = lcm;
}
}
// For each voice, extract notes and create a context for every
// new tick that hasn't been seen before.
for (i = 0; i < voices.length; ++i) {
voice = voices[i];
var tickables = voice.getTickables();
// 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 Vex.Flow.Fraction(0, resolutionMultiplier);
for (var j = 0; j < tickables.length; ++j) {
var tickable = tickables[j];
var integerTicks = ticksUsed.numerator;
// If we have no tick context for this tick, create one.
if (!tickToContextMap[integerTicks]) {
var newContext = new context_type();
contexts.push(newContext);
tickToContextMap[integerTicks] = newContext;
}
// Add this tickable to the TickContext.
add_fn(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
};
}
// ## Static Methods
//
// 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.
Formatter.FormatAndDraw = function(ctx, stave, notes, params) {
var opts = {
auto_beam: false,
align_rests: false
};
if (typeof params == "object") {
Vex.Merge(opts, params);
} else if (typeof params == "boolean") {
opts.auto_beam = params;
}
// Start by creating a voice and adding all the notes to it.
var voice = new Vex.Flow.Voice(Vex.Flow.TIME4_4).
setMode(Vex.Flow.Voice.Mode.SOFT);
voice.addTickables(notes);
// Then create beams, if requested.
var beams = null;
if (opts.auto_beam) {
beams = Vex.Flow.Beam.applyAndGetBeams(voice);
}
// Instantiate a `Formatter` and format the notes.
new Formatter().
joinVoices([voice], {align_rests: opts.align_rests}).
formatToStave([voice], stave, {align_rests: opts.align_rests});
// Render the voice and beams to the stave.
voice.setStave(stave);
voice.draw(ctx, stave);
if (beams != null) {
for (var i=0; i<beams.length; ++i) {
beams[i].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.
Formatter.FormatAndDrawTab = function(ctx,
tabstave, stave, tabnotes, notes, autobeam, params) {
var opts = {
auto_beam: autobeam,
align_rests: false
};
if (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 Vex.Flow.Voice(Vex.Flow.TIME4_4).
setMode(Vex.Flow.Voice.Mode.SOFT);
notevoice.addTickables(notes);
// Create a `4/4` voice for `tabnotes`.
var tabvoice = new Vex.Flow.Voice(Vex.Flow.TIME4_4).
setMode(Vex.Flow.Voice.Mode.SOFT);
tabvoice.addTickables(tabnotes);
// Generate beams if requested.
var beams = null;
if (opts.auto_beam) {
beams = Vex.Flow.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);
if (beams != null) {
for (var i=0; i<beams.length; ++i) {
beams[i].setContext(ctx).draw();
}
}
// Draw a connector between tab and note staves.
(new Vex.Flow.StaveConnector(stave, tabstave)).setContext(ctx).draw();
};
// Auto position rests based on previous/next note positions.
//
// Params:
// * `notes`: An array of notes.
// * `align_all_notes`: If set to false, only aligns non-beamed notes.
// * `align_tuplets`: If set to false, ignores tuplets.
Formatter.AlignRestsToNotes = function(notes, align_all_notes, align_tuplets) {
for (var i = 0; i < notes.length; ++i) {
if (notes[i] instanceof Vex.Flow.StaveNote && notes[i].isRest()) {
var note = notes[i];
if (note.tuplet && !align_tuplets) continue;
// If activated rests not on default can be rendered as specified.
var position = note.getGlyph().position.toUpperCase();
if (position != "R/4" && position != "B/4") {
continue;
}
if (align_all_notes || note.beam != null) {
// Align rests with previous/next notes.
var props = note.getKeyProps()[0];
if (i === 0) {
props.line = lookAhead(notes, props.line, i, false);
note.setKeyLine(0, props.line);
} else if (i > 0 && i < notes.length) {
// If previous note is a rest, use its line number.
var rest_line;
if (notes[i-1].isRest()) {
rest_line = notes[i-1].getKeyProps()[0].line;
props.line = rest_line;
} else {
rest_line = notes[i-1].getLineForRest();
// Get the rest line for next valid non-rest note group.
props.line = lookAhead(notes, rest_line, i, true);
}
note.setKeyLine(0, props.line);
}
}
}
}
return this;
};
// ## Prototype Methods
Formatter.prototype = {
// Find all the rests in each of the `voices` and align them
// to neighboring notes. If `align_all_notes` is `false`, then only
// align non-beamed notes.
alignRests: function(voices, align_all_notes) {
if (!voices || !voices.length) throw new Vex.RERR("BadArgument",
"No voices to format rests");
for (var i = 0; i < voices.length; i++) {
new Formatter.AlignRestsToNotes(voices[i].tickables, align_all_notes);
}
},
// Calculate the minimum width required to align and format `voices`.
preCalculateMinTotalWidth: function(voices) {
// Cache results.
if (this.hasMinTotalWidth) return;
// Create tick contexts if not already created.
if (!this.tContexts) {
if (!voices) {
throw new Vex.RERR("BadArgument",
"'voices' required to run preCalculateMinTotalWidth");
}
this.createTickContexts(voices);
}
var contexts = this.tContexts;
var contextList = contexts.list;
var contextMap = contexts.map;
this.minTotalWidth = 0;
// Go through each tick context and calculate total width.
for (var i = 0; i < contextList.length; ++i) {
var context = contextMap[contextList[i]];
// `preFormat` gets them to descend down to their tickables and modifier
// contexts, and calculate their widths.
context.preFormat();
this.minTotalWidth += context.getWidth();
}
this.hasMinTotalWidth = true;
return this.minTotalWidth;
},
// Get minimum width required to render all voices. Either `format` or
// `preCalculateMinTotalWidth` must be called before this method.
getMinTotalWidth: function() {
if (!this.hasMinTotalWidth) {
throw new Vex.RERR("NoMinTotalWidth",
"Need to call 'preCalculateMinTotalWidth' or 'preFormat' before" +
" calling 'getMinTotalWidth'");
}
return this.minTotalWidth;
},
// Create `ModifierContext`s for each tick in `voices`.
createModifierContexts: function(voices) {
var contexts = createContexts(voices,
Vex.Flow.ModifierContext,
function(tickable, context) {
tickable.addToModifierContext(context);
});
this.mContexts = contexts;
return contexts;
},
// Create `TickContext`s for each tick in `voices`. Also calculate the
// total number of ticks in voices.
createTickContexts: function(voices) {
var contexts = createContexts(voices,
Vex.Flow.TickContext,
function(tickable, context) { context.addTickable(tickable); });
contexts.array.forEach(function(context) {
context.tContexts = contexts.array;
});
this.totalTicks = voices[0].getTicksUsed().clone();
this.tContexts = contexts;
return contexts;
},
// This is the core formatter logic. Format voices and justify them
// to `justifyWidth` pixels. `rendering_context` 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.
preFormat: function(justifyWidth, rendering_context, voices, stave) {
// Initialize context maps.
var contexts = this.tContexts;
var contextList = contexts.list;
var contextMap = contexts.map;
// 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) {
voice.setStave(stave);
voice.preFormat();
});
}
// Figure out how many pixels to allocate per tick.
if (!justifyWidth) {
justifyWidth = 0;
this.pixelsPerTick = 0;
} else {
this.pixelsPerTick = justifyWidth / (this.totalTicks.value() * contexts.resolutionMultiplier);
}
// Now distribute the ticks to each tick context, and assign them their
// own X positions.
var x = 0;
var center_x = justifyWidth / 2;
var white_space = 0; // White space to right of previous note
var tick_space = 0; // Pixels from prev note x-pos to curent note x-pos
var prev_tick = 0;
var prev_width = 0;
var lastMetrics = null;
var initial_justify_width = justifyWidth;
this.minTotalWidth = 0;
var i, tick, context;
// Pass 1: Give each note maximum width requested by context.
for (i = 0; i < contextList.length; ++i) {
tick = contextList[i];
context = contextMap[tick];
if (rendering_context) context.setContext(rendering_context);
// 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 min_x = 0;
var pixels_used = width;
// Calculate space between last note and next note.
tick_space = Math.min((tick - prev_tick) * this.pixelsPerTick, pixels_used);
// Shift next note up `tick_space` pixels.
var set_x = x + tick_space;
// Calculate the minimum next note position to allow for right modifiers.
if (lastMetrics != null) {
min_x = x + prev_width - 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.)
set_x = context.shouldIgnoreTicks() ?
(min_x + context.getWidth()) : Math.max(set_x, min_x);
if (context.shouldIgnoreTicks() && justifyWidth) {
// This note stole room... recalculate with new justification width.
justifyWidth -= context.getWidth();
this.pixelsPerTick = justifyWidth /
(this.totalTicks.value() * contexts.resolutionMultiplier);
}
// Determine pixels needed for left modifiers.
var left_px = thisMetrics.extraLeftPx;
// Determine white space to right of previous tick (from right modifiers.)
if (lastMetrics != null) {
white_space = (set_x - x) - (prev_width -
lastMetrics.extraLeftPx);
}
// Deduct pixels from white space quota.
if (i > 0) {
if (white_space > 0) {
if (white_space >= left_px) {
// Have enough white space for left modifiers - no offset needed.
left_px = 0;
} else {
// Decrease left modifier offset by amount of white space.
left_px -= white_space;
}
}
}
// Adjust the tick x position with the left modifier offset.
set_x += left_px;
// Set the `x` value for the context, which sets the `x` value for all
// tickables in this context.
context.setX(set_x);
context.setPixelsUsed(pixels_used); // ??? Remove this if nothing breaks
lastMetrics = thisMetrics;
prev_width = width;
prev_tick = tick;
x = set_x;
}
this.hasMinTotalWidth = true;
if (justifyWidth > 0) {
// Pass 2: Take leftover width, and distribute it to proportionately to
// all notes.
var remaining_x = initial_justify_width - (x + prev_width);
var leftover_pixels_per_tick = remaining_x / (this.totalTicks.value() * contexts.resolutionMultiplier);
var accumulated_space = 0;
prev_tick = 0;
for (i = 0; i < contextList.length; ++i) {
tick = contextList[i];
context = contextMap[tick];
tick_space = (tick - prev_tick) * leftover_pixels_per_tick;
accumulated_space = accumulated_space + tick_space;
context.setX(context.getX() + accumulated_space);
prev_tick = tick;
// Move center aligned tickables to middle
var centeredTickables = context.getCenterAlignedTickables();
/*jshint -W083 */
centeredTickables.forEach(function(tickable) {
tickable.center_x_shift = center_x - 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.
postFormat: function() {
// Postformat modifier contexts
this.mContexts.list.forEach(function(mContext) {
this.mContexts.map[mContext].postFormat();
}, this);
// Postformat tick contexts
this.tContexts.list.forEach(function(tContext) {
this.tContexts.map[tContext].postFormat();
}, this);
return this;
},
// Take all `voices` and create `ModifierContext`s out of them. This tells
// the formatters that the voices belong on a single stave.
joinVoices: function(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.
format: function(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`.
formatToStave: function(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 - Music Engraving for HTML5
// Copyright Mohit Muthanna 2010
//
// This class implements varies types of ties between contiguous notes. The
// ties include: regular ties, hammer ons, pull offs, and slides.
/**
* Create a new tie from the specified notes. The notes must
* be part of the same line, and have the same duration (in ticks).
*
* @constructor
* @param {!Object} context The canvas context.
* @param {!Object} notes The notes to tie up.
* @param {!Object} Options
*/
Vex.Flow.StaveTie = (function() {
function StaveTie(notes, text) {
if (arguments.length > 0) this.init(notes, text);
}
StaveTie.prototype = {
init: function(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.notes = notes;
this.context = null;
this.text = text;
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);
},
setContext: function(context) { this.context = context; return this; },
setFont: function(font) { this.font = font; return this; },
/**
* Set the notes to attach this tie to.
*
* @param {!Object} notes The notes to tie up.
*/
setNotes: function(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.
*/
isPartial: function() {
return (!this.first_note || !this.last_note);
},
renderTie: function(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();
}
},
renderText: function(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();
},
draw: function() {
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, last_x_px, first_ys, last_ys, stem_direction;
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;
}
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;
}());
// VexFlow - Music Engraving for HTML5
// Copyright Mohit Muthanna 2010
//
// This class implements varies types of ties between contiguous notes. The
// ties include: regular ties, hammer ons, pull offs, and slides.
/**
* Create a new tie from the specified notes. The notes must
* be part of the same line, and have the same duration (in ticks).
*
* @constructor
* @param {!Object} context The canvas context.
* @param {!Object} notes The notes to tie up.
* @param {!Object} Options
*/
Vex.Flow.TabTie = (function() {
function TabTie(notes, text) {
if (arguments.length > 0) this.init(notes, text);
}
TabTie.createHammeron = function(notes) {
return new TabTie(notes, "H");
};
TabTie.createPulloff = function(notes) {
return new TabTie(notes, "P");
};
Vex.Inherit(TabTie, Vex.Flow.StaveTie, {
init: function(notes, text) {
/**
* Notes is a struct that has:
*
* {
* first_note: Note,
* last_note: Note,
* first_indices: [n1, n2, n3],
* last_indices: [n1, n2, n3]
* }
*
**/
TabTie.superclass.init.call(this, notes, text);
this.render_options.cp1 = 9;
this.render_options.cp2 = 11;
this.render_options.y_shift = 3;
this.setNotes(notes);
},
draw: function() {
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, last_x_px, first_ys, last_ys;
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 // Tab tie's are always face up.
});
this.renderText(first_x_px, last_x_px);
return true;
}
});
return TabTie;
}());
// VexFlow - Music Engraving for HTML5
// Copyright Mohit Muthanna 2010
//
// This class implements varies types of ties between contiguous notes. The
// ties include: regular ties, hammer ons, pull offs, and slides.
/**
* Create a new tie from the specified notes. The notes must
* be part of the same line, and have the same duration (in ticks).
*
* @constructor
* @param {!Object} context The canvas context.
* @param {!Object} notes The notes to tie up.
* @param {!Object} Options
*/
Vex.Flow.TabSlide = (function() {
function TabSlide(notes, direction) {
if (arguments.length > 0) this.init(notes, direction);
}
TabSlide.SLIDE_UP = 1;
TabSlide.SLIDE_DOWN = -1;
TabSlide.createSlideUp = function(notes) {
return new TabSlide(notes, TabSlide.SLIDE_UP);
};
TabSlide.createSlideDown = function(notes) {
return new TabSlide(notes, TabSlide.SLIDE_DOWN);
};
Vex.Inherit(TabSlide, Vex.Flow.TabTie, {
init: function(notes, direction) {
/**
* Notes is a struct that has:
*
* {
* first_note: Note,
* last_note: Note,
* first_indices: [n1, n2, n3],
* last_indices: [n1, n2, n3]
* }
*
**/
TabSlide.superclass.init.call(this, notes, "sl.");
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);
},
renderTie: function(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;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
//
// This file implements tablature bends.
/**
@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;
}]
*/
Vex.Flow.Bend = (function() {
function Bend(text, release, phrase) {
if (arguments.length > 0) this.init(text, release, phrase);
}
Bend.CATEGORY = "bends";
Bend.UP = 0;
Bend.DOWN = 1;
var Modifier = Vex.Flow.Modifier;
// ## Static Methods
// Arrange bends in `ModifierContext`
Bend.format = function(bends, state) {
if (!bends || bends.length === 0) return false;
var last_width = 0;
var text_line = state.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.text_line += 1;
return true;
};
// ## Prototype Methods
Vex.Inherit(Bend, Modifier, {
init: function(text, release, phrase) {
var superclass = Vex.Flow.Bend.superclass;
superclass.init.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();
},
setXShift: function(value) {
this.x_shift = value;
this.updateWidth();
},
setFont: function(font) { this.font = font; return this; },
getText: function() { return this.text; },
updateWidth: function() {
var that = this;
function measure_text(text) {
var text_width;
if (that.context) {
text_width = that.context.measureText(text).width;
} else {
text_width = Vex.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;
},
draw: function() {
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;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
//
// This class implements vibratos.
Vex.Flow.Vibrato = (function() {
function Vibrato() { this.init(); }
Vibrato.CATEGORY = "vibratos";
var Modifier = Vex.Flow.Modifier;
// ## Static Methods
// Arrange vibratos inside a `ModifierContext`.
Vibrato.format = function(vibratos, state, context) {
if (!vibratos || vibratos.length === 0) return false;
var text_line = state.text_line;
var width = 0;
var shift = state.right_shift - 7;
// If there's a bend, drop the text line
var bends = context.getModifiers(Vex.Flow.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.text_line += 1;
return true;
};
// ## Prototype Methods
Vex.Inherit(Vibrato, Modifier, {
init: function() {
var superclass = Vex.Flow.Vibrato.superclass;
superclass.init.call(this);
this.harsh = false;
this.position = Vex.Flow.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);
},
setHarsh: function(harsh) { this.harsh = harsh; return this; },
setVibratoWidth: function(width) {
this.vibrato_width = width;
this.setWidth(this.vibrato_width);
return this;
},
draw: function() {
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(Vex.Flow.Modifier.Position.RIGHT,
this.index);
var ctx = this.context;
var that = this;
var vibrato_width = this.vibrato_width;
function renderVibrato(x, y) {
var wave_width = that.render_options.wave_width;
var wave_girth = that.render_options.wave_girth;
var wave_height = that.render_options.wave_height;
var num_waves = vibrato_width / wave_width;
ctx.beginPath();
var i;
if (that.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;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
//
// This file implements text annotations as modifiers that can be attached to
// notes.
//
// See `tests/annotation_tests.js` for usage examples.
Vex.Flow.Annotation = (function() {
function Annotation(text) {
if (arguments.length > 0) this.init(text);
}
Annotation.CATEGORY = "annotations";
// To enable logging for this class. Set `Vex.Flow.Annotation.DEBUG` to `true`.
function L() { if (Annotation.DEBUG) Vex.L("Vex.Flow.Annotation", arguments); }
// Text annotations can be positioned and justified relative to the note.
Annotation.Justify = {
LEFT: 1,
CENTER: 2,
RIGHT: 3,
CENTER_STEM: 4
};
Annotation.VerticalJustify = {
TOP: 1,
CENTER: 2,
BOTTOM: 3,
CENTER_STEM: 4
};
// Arrange annotations within a `ModifierContext`
Annotation.format = function(annotations, state) {
if (!annotations || annotations.length === 0) return false;
var text_line = state.text_line;
var max_width = 0;
// Format Annotations
var width;
for (var i = 0; i < annotations.length; ++i) {
var annotation = annotations[i];
annotation.setTextLine(text_line);
width = annotation.getWidth() > max_width ?
annotation.getWidth() : max_width;
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`.
var Modifier = Vex.Flow.Modifier;
Vex.Inherit(Annotation, Modifier, {
// Create a new `Annotation` with the string `text`.
init: function(text) {
Annotation.superclass.init.call(this);
this.note = null;
this.index = null;
this.text_line = 0;
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(Vex.Flow.textWidth(text));
},
// Set the vertical position of the text relative to the stave.
setTextLine: function(line) { this.text_line = line; return this; },
// Set font family, size, and weight. E.g., `Arial`, `10pt`, `Bold`.
setFont: function(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`.
setVerticalJustification: function(just) {
this.vert_justification = just;
return this;
},
// Get and set horizontal justification. `justification` is a value in
// `Annotation.Justify`.
getJustification: function() { return this.justification; },
setJustification: function(justification) {
this.justification = justification; return this; },
// Render text beside the note.
draw: function() {
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, y;
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, spacing;
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("Rendering annotation: ", this.text, x, y);
this.context.fillText(this.text, x, y);
this.context.restore();
}
});
return Annotation;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
// Author: Larry Kuhns.
//
// ## Description
//
// This file implements articulations and accents as modifiers that can be
// attached to notes. The complete list of articulations is available in
// `tables.js` under `Vex.Flow.articulationCodes`.
//
// See `tests/articulation_tests.js` for usage examples.
Vex.Flow.Articulation = (function() {
function Articulation(type) {
if (arguments.length > 0) this.init(type);
}
Articulation.CATEGORY = "articulations";
// To enable logging for this class. Set `Vex.Flow.Articulation.DEBUG` to `true`.
function L() { if (Articulation.DEBUG) Vex.L("Vex.Flow.Articulation", arguments); }
var Modifier = Vex.Flow.Modifier;
// ## Static Methods
// Arrange articulations inside `ModifierContext`
Articulation.format = function(articulations, state) {
if (!articulations || articulations.length === 0) return false;
var text_line = state.text_line;
var max_width = 0;
// Format Articulations
var width;
for (var i = 0; i < articulations.length; ++i) {
var articulation = articulations[i];
articulation.setTextLine(text_line);
width = articulation.getWidth() > max_width ?
articulation.getWidth() : max_width;
var type = Vex.Flow.articulationCodes(articulation.type);
if(type.between_lines)
text_line += 1;
else
text_line += 1.5;
}
state.left_shift += width / 2;
state.right_shift += width / 2;
state.text_line = text_line;
return true;
};
// ## Prototype Methods
Vex.Inherit(Articulation, Modifier, {
// Create a new articulation of type `type`, which is an entry in
// `Vex.Flow.articulationCodes` in `tables.js`.
init: function(type) {
Articulation.superclass.init.call(this);
this.note = null;
this.index = null;
this.type = type;
this.position = Modifier.Position.BELOW;
this.render_options = {
font_scale: 38
};
this.articulation = Vex.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);
},
// Render articulation in position next to note.
draw: function() {
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 === Vex.Flow.StaveNote.STEM_DOWN) ||
(this.position === Modifier.Position.BELOW &&
stem_direction === Vex.Flow.StaveNote.STEM_UP);
var needsLineAdjustment = function(articulation, note_line, line_spacing) {
var offset_direction = (articulation.position === Modifier.Position.ABOVE) ? 1 : -1;
var duration = articulation.getNote().getDuration();
if(!is_on_head && Vex.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 === Vex.Flow.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 === Vex.Flow.StaveNote.STEM_UP) {
bottom = stave.getYForBottomText(this.text_line - 2);
} else if (stem_direction === Vex.Flow.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) ? true : false;
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;
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("Rendering articulation: ", this.articulation, glyph_x, glyph_y);
Vex.Flow.renderGlyph(this.context, glyph_x, glyph_y,
this.render_options.font_scale, this.articulation.code);
}
});
return Articulation;
}());
// VexFlow - Music Engraving for HTML5
// Copyright Mohit Muthanna 2010
//
// This class implements varies types of tunings for tablature.
/**
* @constructor
*/
Vex.Flow.Tuning = (function() {
function Tuning(tuningString) {
this.init(tuningString);
}
Tuning.names = {
"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"
};
Tuning.prototype = {
init: function(tuningString) {
// Default to standard tuning.
this.setTuning(tuningString || "E/5,B/4,G/4,D/4,A/3,E/3,B/2,E/2");
},
noteToInteger: function(noteString) {
return Vex.Flow.keyProperties(noteString).int_value;
},
setTuning: function(noteString) {
if (Vex.Flow.Tuning.names[noteString])
noteString = Vex.Flow.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]);
}
},
getValueForString: function(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];
},
getValueForFret: function(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;
},
getNoteForFret: function(fretNum, stringNum) {
var noteValue = this.getValueForFret(fretNum, stringNum);
var octave = Math.floor(noteValue / 12);
var value = noteValue % 12;
return Vex.Flow.integerToNote(value) + "/" + octave;
}
};
return Tuning;
}());
// VexFlow - Music Engraving for HTML5
//
// A base class for stave modifiers (e.g. clefs, key signatures)
//
/**
* @constructor
*/
Vex.Flow.StaveModifier = (function() {
function StaveModifier() {
this.init();
}
StaveModifier.prototype = {
init: function() {
this.padding = 10;
},
getCategory: function() {return "";},
makeSpacer: function(padding) {
return {
getContext: function() {return true;},
setStave: function() {},
renderToStave: function() {},
getMetrics: function() {
return {width: padding};
}
};
},
placeGlyphOnLine: function(glyph, stave, line) {
glyph.setYShift(stave.getYForLine(line) - stave.getYForGlyphs());
},
setPadding: function(padding) {
this.padding = padding;
},
addToStave: function(stave, firstGlyph) {
if (!firstGlyph) {
stave.addGlyph(this.makeSpacer(this.padding));
}
this.addModifier(stave);
return this;
},
addToStaveEnd: function(stave, firstGlyph) {
if (!firstGlyph) {
stave.addEndGlyph(this.makeSpacer(this.padding));
}
else {
stave.addEndGlyph(this.makeSpacer(2));
}
this.addEndModifier(stave);
return this;
},
addModifier: function() {
throw new Vex.RERR("MethodNotImplemented",
"addModifier() not implemented for this stave modifier.");
},
addEndModifier: function() {
throw new Vex.RERR("MethodNotImplemented",
"addEndModifier() not implemented for this stave modifier.");
}
};
return StaveModifier;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
// Author: Cyril Silverman
//
// ## Description
//
// This file implements key signatures. A key signature sits on a stave
// and indicates the notes with implicit accidentals.
Vex.Flow.KeySignature = (function() {
function KeySignature(keySpec) {
if (arguments.length > 0) this.init(keySpec);
}
// Space between natural and following accidental depending
// on vertical position
KeySignature.accidentalSpacing = {
'#': {
above: 6,
below: 4
},
'b': {
above: 4,
below: 7
},
'n': {
above: 3,
below: -1
}
};
// ## Prototype Methods
Vex.Inherit(KeySignature, Vex.Flow.StaveModifier, {
// Create a new Key Signature based on a `key_spec`
init: function(key_spec) {
KeySignature.superclass.init();
this.glyphFontScale = 38; // TODO(0xFE): Should this match StaveNote?
this.accList = Vex.Flow.keySignature(key_spec);
},
// Add an accidental glyph to the `stave`. `acc` is the data of the
// accidental to add. If the `next` accidental is also provided, extra
// width will be added to the initial accidental for optimal spacing.
addAccToStave: function(stave, acc, next) {
var glyph_data = Vex.Flow.accidentalCodes(acc.type);
var glyph = new Vex.Flow.Glyph(glyph_data.code, this.glyphFontScale);
// Determine spacing between current accidental and the next accidental
var extra_width = 0;
if (acc.type === "n" && next) {
var above = next.line >= acc.line;
var space = KeySignature.accidentalSpacing[next.type];
extra_width = above ? space.above : space.below;
}
// Set the width and place the glyph on the stave
glyph.setWidth(glyph_data.width + extra_width);
this.placeGlyphOnLine(glyph, stave, acc.line);
stave.addGlyph(glyph);
},
// Cancel out a key signature provided in the `spec` parameter. This will
// place appropriate natural accidentals before the key signature.
cancelKey: function(spec) {
// Get the accidental list for the cancelled key signature
var cancel_accList = Vex.Flow.keySignature(spec);
// If the cancelled key has a different accidental type, ie: # vs b
var different_types = this.accList.length > 0 &&
cancel_accList[0].type !== this.accList[0].type;
// Determine how many naturals needed to add
var naturals = 0;
if (different_types) {
naturals = cancel_accList.length;
} else {
naturals = 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);
return this;
},
// Add the key signature to the `stave`. You probably want to use the
// helper method `.addToStave()` instead
addModifier: function(stave) {
this.convertAccLines(stave.clef, this.accList[0].type);
for (var i = 0; i < this.accList.length; ++i) {
this.addAccToStave(stave, this.accList[i], this.accList[i+1]);
}
},
// Add the key signature to the `stave`, if it's the not the `firstGlyph`
// a spacer will be added as well.
addToStave: function(stave, firstGlyph) {
if (this.accList.length === 0)
return this;
if (!firstGlyph) {
stave.addGlyph(this.makeSpacer(this.padding));
}
this.addModifier(stave);
return this;
},
// Apply the accidental staff line placement based on the `clef` and
// the accidental `type` for the key signature ('# or 'b').
convertAccLines: function(clef, type) {
var offset = 0.0; // if clef === "treble"
var tenorSharps;
var isTenorSharps = ((clef === "tenor") && (type === "#")) ? true : false;
switch (clef) {
case "bass":
offset = 1;
break;
case "alto":
offset = 0.5;
break;
case "tenor":
if (!isTenorSharps) {
offset = -0.5;
}
break;
}
// Special-case for TenorSharps
var i;
if (isTenorSharps) {
tenorSharps = [3, 1, 2.5, 0.5, 2, 0, 1.5];
for (i = 0; i < this.accList.length; ++i) {
this.accList[i].line = tenorSharps[i];
}
}
else {
if (clef != "treble") {
for (i = 0; i < this.accList.length; ++i) {
this.accList[i].line += offset;
}
}
}
}
});
return KeySignature;
}());
// Vex Flow Notation
// Implements time signatures glyphs for staffs
// See tables.js for the internal time signatures
// representation
//
/**
* @param {string} timeSpec time signature, i.e. "4/4"
* @param {number} [customPadding] custom padding when using multi-stave/multi-instrument setting
* to align key/time signature (in pixels), optional
* @constructor
*/
Vex.Flow.TimeSignature = (function() {
function TimeSignature(timeSpec, customPadding) {
if (arguments.length > 0) this.init(timeSpec, customPadding);
}
TimeSignature.glyphs = {
"C": {
code: "v41",
point: 40,
line: 2
},
"C|": {
code: "vb6",
point: 40,
line: 2
}
};
Vex.Inherit(TimeSignature, Vex.Flow.StaveModifier, {
init: function(timeSpec, customPadding) {
TimeSignature.superclass.init();
var padding = customPadding || 15;
this.setPadding(padding);
this.point = 40;
this.topLine = 2;
this.bottomLine = 4;
this.timeSig = this.parseTimeSpec(timeSpec);
},
parseTimeSpec: function(timeSpec) {
if (timeSpec == "C" || timeSpec == "C|") {
var glyphInfo = TimeSignature.glyphs[timeSpec];
return {num: false, line: glyphInfo.line,
glyph: new Vex.Flow.Glyph(glyphInfo.code, glyphInfo.point)};
}
var topNums = [];
var i, c;
for (i = 0; i < timeSpec.length; ++i) {
c = timeSpec.charAt(i);
if (c == "/") {
break;
}
else if (/[0-9]/.test(c)) {
topNums.push(c);
}
else {
throw new Vex.RERR("BadTimeSignature",
"Invalid time spec: " + timeSpec);
}
}
if (i === 0) {
throw new Vex.RERR("BadTimeSignature",
"Invalid time spec: " + timeSpec);
}
// skip the "/"
++i;
if (i == timeSpec.length) {
throw new Vex.RERR("BadTimeSignature",
"Invalid time spec: " + timeSpec);
}
var botNums = [];
for (; i < timeSpec.length; ++i) {
c = timeSpec.charAt(i);
if (/[0-9]/.test(c)) {
botNums.push(c);
}
else {
throw new Vex.RERR("BadTimeSignature",
"Invalid time spec: " + timeSpec);
}
}
return {num: true, glyph: this.makeTimeSignatureGlyph(topNums, botNums)};
},
makeTimeSignatureGlyph: function(topNums, botNums) {
var glyph = new Vex.Flow.Glyph("v0", this.point);
glyph["topGlyphs"] = [];
glyph["botGlyphs"] = [];
var topWidth = 0;
var i, num;
for (i = 0; i < topNums.length; ++i) {
num = topNums[i];
var topGlyph = new Vex.Flow.Glyph("v" + num, this.point);
glyph.topGlyphs.push(topGlyph);
topWidth += topGlyph.getMetrics().width;
}
var botWidth = 0;
for (i = 0; i < botNums.length; ++i) {
num = botNums[i];
var botGlyph = new Vex.Flow.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(x) {
var start_x = x + topStartX;
var i, g;
for (i = 0; i < this.topGlyphs.length; ++i) {
g = this.topGlyphs[i];
Vex.Flow.Glyph.renderOutline(this.context, g.metrics.outline,
g.scale, start_x + g.x_shift, this.stave.getYForLine(that.topLine) + 1);
start_x += g.getMetrics().width;
}
start_x = x + botStartX;
for (i = 0; i < this.botGlyphs.length; ++i) {
g = this.botGlyphs[i];
that.placeGlyphOnLine(g, this.stave, g.line);
Vex.Flow.Glyph.renderOutline(this.context, g.metrics.outline,
g.scale, start_x + g.x_shift, this.stave.getYForLine(that.bottomLine) + 1);
start_x += g.getMetrics().width;
}
};
return glyph;
},
getTimeSig: function() {
return this.timeSig;
},
addModifier: function(stave) {
if (!this.timeSig.num) {
this.placeGlyphOnLine(this.timeSig.glyph, stave, this.timeSig.line);
}
stave.addGlyph(this.timeSig.glyph);
},
addEndModifier: function(stave) {
if (!this.timeSig.num) {
this.placeGlyphOnLine(this.timeSig.glyph, stave, this.timeSig.line);
}
stave.addEndGlyph(this.timeSig.glyph);
}
});
return TimeSignature;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna Cheppudira 2013.
// Co-author: Benjamin W. Bohl
//
// ## Description
//
// This file implements various types of clefs that can be rendered on a stave.
//
// See `tests/clef_tests.js` for usage examples.
Vex.Flow.Clef = (function() {
function Clef(clef, size, annotation) {
if (arguments.length > 0) this.init(clef, size, annotation);
}
// To enable logging for this class, set `Vex.Flow.Clef.DEBUG` to `true`.
function L() { if (Vex.Flow.Clef.DEBUG) Vex.L("Vex.Flow.Clef", arguments); }
// Every clef name is associated with a glyph code from the font file
// and a default stave line number.
Clef.types = {
"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
},
};
// Sizes affect the point-size of the clef.
Clef.sizes = {
"default": 40,
"small": 32
};
// Annotations attach to clefs -- such as "8" for octave up or down.
Clef.annotations = {
"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
}
}
}
}
},
};
// ## Prototype Methods
Vex.Inherit(Clef, Vex.Flow.StaveModifier, {
// Create a new clef. The parameter `clef` must be a key from
// `Clef.types`.
init: function(clef, size, annotation) {
var superclass = Vex.Flow.Clef.superclass;
superclass.init.call(this);
this.clef = Vex.Flow.Clef.types[clef];
if (size === undefined) {
this.size = "default";
} else {
this.size = size;
}
this.clef.point = Vex.Flow.Clef.sizes[this.size];
// If an annotation, such as 8va, is specified, add it to the Clef object.
if (annotation !== undefined) {
var anno_dict = Vex.Flow.Clef.annotations[annotation];
this.annotation = {
code: anno_dict.code,
point: anno_dict.sizes[this.size].point,
line: anno_dict.sizes[this.size].attachments[clef].line,
x_shift: anno_dict.sizes[this.size].attachments[clef].x_shift
};
}
L("Creating clef:", clef);
},
// Add this clef to the start of the given `stave`.
addModifier: function(stave) {
var glyph = new Vex.Flow.Glyph(this.clef.code, this.clef.point);
this.placeGlyphOnLine(glyph, stave, this.clef.line);
if (this.annotation !== undefined) {
var attachment = new Vex.Flow.Glyph(this.annotation.code, this.annotation.point);
attachment.metrics.x_max = 0;
attachment.setXShift(this.annotation.x_shift);
this.placeGlyphOnLine(attachment, stave, this.annotation.line);
stave.addGlyph(attachment);
}
stave.addGlyph(glyph);
},
// Add this clef to the end of the given `stave`.
addEndModifier: function(stave) {
var glyph = new Vex.Flow.Glyph(this.clef.code, this.clef.point);
this.placeGlyphOnLine(glyph, stave, this.clef.line);
stave.addEndGlyph(glyph);
if (this.annotation !== undefined) {
var attachment = new Vex.Flow.Glyph(this.annotation.code, this.annotation.point);
attachment.metrics.x_max = 0;
attachment.setXShift(this.annotation.x_shift);
this.placeGlyphOnLine(attachment, stave, this.annotation.line);
stave.addEndGlyph(attachment);
}
}
});
return Clef;
}());
// VexFlow - Music Engraving for HTML5
// Copyright Mohit Muthanna 2010
//
// This class implements some standard music theory routines.
//
// requires: vex.js (Vex)
// requires: flow.js (Vex.Flow)
/**
* @constructor
*/
Vex.Flow.Music = (function() {
function Music() {
this.init();
}
Music.NUM_TONES = 12;
Music.roots = [ "c", "d", "e", "f", "g", "a", "b" ];
Music.root_values = [ 0, 2, 4, 5, 7, 9, 11 ];
Music.root_indices = {
"c": 0,
"d": 1,
"e": 2,
"f": 3,
"g": 4,
"a": 5,
"b": 6
};
Music.canonical_notes = [
"c", "c#", "d", "d#",
"e", "f", "f#", "g",
"g#", "a", "a#", "b"
];
Music.diatonic_intervals = [
"unison", "m2", "M2", "m3", "M3",
"p4", "dim5", "p5", "m6", "M6",
"b7", "M7", "octave"
];
Music.diatonic_accidentals = {
"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}
};
Music.intervals = {
"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
};
Music.scales = {
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]
};
Music.accidentals = [ "bb", "b", "n", "#", "##" ];
Music.noteValues = {
'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 }
};
Music.prototype = {
init: function() {},
isValidNoteValue: function(note) {
if (note == null || note < 0 || note >= Vex.Flow.Music.NUM_TONES)
return false;
return true;
},
isValidIntervalValue: function(interval) {
return this.isValidNoteValue(interval);
},
getNoteParts: function(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|#|##)?$/;
var match = regex.exec(note);
if (match != null) {
var root = match[1];
var accidental = match[2];
return {
'root': root,
'accidental': accidental
};
} else {
throw new Vex.RERR("BadArguments", "Invalid note name: " + noteString);
}
},
getKeyParts: function(keyString) {
if (!keyString || keyString.length < 1)
throw new Vex.RERR("BadArguments", "Invalid key: " + keyString);
var key = keyString.toLowerCase();
// Support Major, Minor, Melodic Minor, and Harmonic Minor key types.
var regex = /^([cdefgab])(b|#)?(mel|harm|m|M)?$/;
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);
}
},
getNoteValue: function(noteString) {
var value = Music.noteValues[noteString];
if (value == null)
throw new Vex.RERR("BadArguments", "Invalid note name: " + noteString);
return value.int_val;
},
getIntervalValue: function(intervalString) {
var value = Music.intervals[intervalString];
if (value == null)
throw new Vex.RERR("BadArguments",
"Invalid interval name: " + intervalString);
return value;
},
getCanonicalNoteName: function(noteValue) {
if (!this.isValidNoteValue(noteValue))
throw new Vex.RERR("BadArguments",
"Invalid note value: " + noteValue);
return Music.canonical_notes[noteValue];
},
getCanonicalIntervalName: function(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.
*/
getRelativeNoteValue: function(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;
},
getRelativeNoteName: function(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;
var i;
if (interval > 0) {
for (i = 1; i <= interval; ++i)
relativeNoteName += "#";
} else if (interval < 0) {
for (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).
*/
getScaleTones: function(key, intervals) {
var tones = [];
tones.push(key);
var nextNote = key;
for (var i = 0; i < intervals.length; ++i) {
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
*/
getIntervalBetween: function(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;
if (direction == 1)
difference = note2 - note1;
else
difference = 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.
createScaleMap: function(keySignature) {
var keySigParts = this.getKeyParts(keySignature);
var scaleName = Vex.Flow.KeyManager.scales[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 = Vex.Flow.Music.root_indices[keySigParts.root];
var scaleMap = {};
for (var i = 0; i < Vex.Flow.Music.roots.length; ++i) {
var index = (noteLocation + i) % Vex.Flow.Music.roots.length;
var rootName = Vex.Flow.Music.roots[index];
var noteName = this.getRelativeNoteName(rootName, scale[i]);
if (noteName.length === 1) {
noteName += "n";
}
scaleMap[rootName] = noteName;
}
return scaleMap;
}
};
return Music;
}());
// VexFlow - Music Engraving for HTML5
// Copyright Mohit Muthanna 2010
//
// This class implements diatonic key management.
//
// requires: vex.js (Vex)
// requires: flow.js (Vex.Flow)
// requires: music.js (Vex.Flow.Music)
/**
* @constructor
*/
Vex.Flow.KeyManager = (function() {
function KeyManager(key) {
this.init(key);
}
KeyManager.scales = {
"M": Vex.Flow.Music.scales.major,
"m": Vex.Flow.Music.scales.minor
};
KeyManager.prototype = {
init: function(key) {
this.music = new Vex.Flow.Music();
this.setKey(key);
},
setKey: function(key) {
this.key = key;
this.reset();
return this;
},
getKey: function() { return this.key; },
reset: function() {
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 = KeyManager.scales[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),
Vex.Flow.KeyManager.scales[this.keyParts.type]);
this.scaleMap = {};
this.scaleMapByValue = {};
this.originalScaleMapByValue = {};
var noteLocation = Vex.Flow.Music.root_indices[this.keyParts.root];
for (var i = 0; i < Vex.Flow.Music.roots.length; ++i) {
var index = (noteLocation + i) % Vex.Flow.Music.roots.length;
var rootName = Vex.Flow.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;
},
getAccidental: function(key) {
var root = this.music.getKeyParts(key).root;
var parts = this.music.getNoteParts(this.scaleMap[root]);
return {
note: this.scaleMap[root],
accidental: parts.accidental
};
},
selectNote: function(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;
}());
// Vex Flow
// Mohit Muthanna <mohit@muthanna.com>
//
// Support for different rendering contexts: Canvas, Raphael
//
// Copyright Mohit Cheppudira 2010
/* global document: false */
Vex.Flow.Renderer = (function() {
function Renderer(sel, backend) {
if (arguments.length > 0) this.init(sel, backend);
}
Renderer.Backends = {
CANVAS: 1,
RAPHAEL: 2,
SVG: 3,
VML: 4
};
//End of line types
Renderer.LineEndType = {
NONE: 1, // No leg
UP: 2, // Upward leg
DOWN: 3 // Downward leg
};
// 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.
Renderer.USE_CANVAS_PROXY = false;
Renderer.buildContext = function(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);
return ctx;
};
Renderer.getCanvasContext = function(sel, width, height, background) {
return Renderer.buildContext(sel, Renderer.Backends.CANVAS,
width, height, background);
};
Renderer.getRaphaelContext = function(sel, width, height, background) {
return Renderer.buildContext(sel, Renderer.Backends.RAPHAEL,
width, height, background);
};
Renderer.bolsterCanvasContext = function(ctx) {
if (Renderer.USE_CANVAS_PROXY) {
return new Vex.Flow.CanvasContext(ctx);
}
var methods = ["clear", "setFont", "setRawFont", "setFillStyle", "setBackgroundFillStyle",
"setStrokeStyle", "setShadowColor", "setShadowBlur", "setLineWidth",
"setLineCap", "setLineDash"];
ctx.vexFlowCanvasContext = ctx;
for (var i in methods) {
var method = methods[i];
ctx[method] = Vex.Flow.CanvasContext.prototype[method];
}
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.
Renderer.drawDashedLine = function(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();
};
Renderer.prototype = {
init: function(sel, backend) {
// 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 Vex.Flow.RaphaelContext(this.element);
} else {
throw new Vex.RERR("InvalidBackend",
"No support for backend: " + this.backend);
}
},
resize: function(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;
},
getContext: function() { return this.ctx; }
};
return Renderer;
}());
// Vex Flow
// Mohit Muthanna <mohit@muthanna.com>
//
// A rendering context for the Raphael backend.
//
// Copyright Mohit Cheppudira 2010
/** @constructor */
Vex.Flow.RaphaelContext = (function() {
function RaphaelContext(element) {
if (arguments.length > 0) this.init(element);
}
RaphaelContext.prototype = {
init: function(element) {
this.element = element;
this.paper = Raphael(element);
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= [];
},
setFont: function(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;
},
setRawFont: function(font) {
this.attributes.font = font;
return this;
},
setFillStyle: function(style) {
this.attributes.fill = style;
return this;
},
setBackgroundFillStyle: function(style) {
this.background_attributes.fill = style;
this.background_attributes.stroke = style;
return this;
},
setStrokeStyle: function(style) {
this.attributes.stroke = style;
return this;
},
setShadowColor: function(style) {
this.shadow_attributes.color = style;
return this;
},
setShadowBlur: function(blur) {
this.shadow_attributes.width = blur;
return this;
},
setLineWidth: function(width) {
this.attributes["stroke-width"] = width;
this.lineWidth = width;
},
// Empty because there is no equivalent in SVG
setLineDash: function() { return this; },
setLineCap: function() { return this; },
scale: function(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;
},
clear: function() { this.paper.clear(); },
resize: function(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")`
setViewBox: function(viewBox) {
this.paper.canvas.setAttribute('viewBox', viewBox);
},
rect: function(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;
},
fillRect: function(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;
},
clearRect: function(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;
},
beginPath: function() {
this.path = "";
this.pen.x = 0;
this.pen.y = 0;
return this;
},
moveTo: function(x, y) {
this.path += "M" + x + "," + y;
this.pen.x = x;
this.pen.y = y;
return this;
},
lineTo: function(x, y) {
this.path += "L" + x + "," + y;
this.pen.x = x;
this.pen.y = y;
return this;
},
bezierCurveTo: function(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;
},
quadraticCurveTo: function(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.
arc: function(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;
},
arcHelper: function(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
glow: function() {
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;
},
fill: function() {
var elem = this.paper.path(this.path).
attr(this.attributes).
attr("stroke-width", 0);
this.glow(elem);
return this;
},
stroke: function() {
// 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;
},
closePath: function() {
this.path += "Z";
return this;
},
measureText: function(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
};
},
fillText: function(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;
},
save: function() {
// 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;
},
restore: function() {
// 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;
}());
// Vex Flow
// Mohit Muthanna <mohit@muthanna.com>
//
// A rendering context for the Raphael backend.
//
// Copyright Mohit Cheppudira 2010
/** @constructor */
Vex.Flow.CanvasContext = (function() {
function CanvasContext(context) {
if (arguments.length > 0) this.init(context);
}
CanvasContext.WIDTH = 600;
CanvasContext.HEIGHT = 400;
CanvasContext.prototype = {
init: function(context) {
// 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;
}
},
clear: function() {
this.vexFlowCanvasContext.clearRect(0, 0, this.canvas.width, this.canvas.height);
},
setFont: function(family, size, weight) {
this.vexFlowCanvasContext.font = (weight || "") + " " + size + "pt " + family;
return this;
},
setRawFont: function(font) {
this.vexFlowCanvasContext.font = font;
return this;
},
setFillStyle: function(style) {
this.vexFlowCanvasContext.fillStyle = style;
return this;
},
setBackgroundFillStyle: function(style) {
this.background_fillStyle = style;
return this;
},
setStrokeStyle: function(style) {
this.vexFlowCanvasContext.strokeStyle = style;
return this;
},
setShadowColor: function(style) {
this.vexFlowCanvasContext.shadowColor = style;
return this;
},
setShadowBlur: function(blur) {
this.vexFlowCanvasContext.shadowBlur = blur;
return this;
},
setLineWidth: function(width) {
this.vexFlowCanvasContext.lineWidth = width;
return this;
},
setLineCap: function(cap_type) {
this.vexFlowCanvasContext.lineCap = cap_type;
return this;
},
setLineDash: function(dash) {
this.vexFlowCanvasContext.lineDash = dash;
},
scale: function(x, y) {
return this.vexFlowCanvasContext.scale(parseFloat(x), parseFloat(y));
},
resize: function(width, height) {
return this.vexFlowCanvasContext.resize(
parseInt(width, 10), parseInt(height, 10));
},
rect: function(x, y, width, height) {
return this.vexFlowCanvasContext.rect(x, y, width, height);
},
fillRect: function(x, y, width, height) {
return this.vexFlowCanvasContext.fillRect(x, y, width, height);
},
clearRect: function(x, y, width, height) {
return this.vexFlowCanvasContext.clearRect(x, y, width, height);
},
beginPath: function() {
return this.vexFlowCanvasContext.beginPath();
},
moveTo: function(x, y) {
return this.vexFlowCanvasContext.moveTo(x, y);
},
lineTo: function(x, y) {
return this.vexFlowCanvasContext.lineTo(x, y);
},
bezierCurveTo: function(x1, y1, x2, y2, x, y) {
return this.vexFlowCanvasContext.bezierCurveTo(x1, y1, x2, y2, x, y);
},
quadraticCurveTo: function(x1, y1, x, y) {
return this.vexFlowCanvasContext.quadraticCurveTo(x1, y1, x, y);
},
// This is an attempt (hack) to simulate the HTML5 canvas
// arc method.
arc: function(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
glow: function() {
return this.vexFlowCanvasContext.glow();
},
fill: function() {
return this.vexFlowCanvasContext.fill();
},
stroke: function() {
return this.vexFlowCanvasContext.stroke();
},
closePath: function() {
return this.vexFlowCanvasContext.closePath();
},
measureText: function(text) {
return this.vexFlowCanvasContext.measureText(text);
},
fillText: function(text, x, y) {
return this.vexFlowCanvasContext.fillText(text, x, y);
},
save: function() {
return this.vexFlowCanvasContext.save();
},
restore: function() {
return this.vexFlowCanvasContext.restore();
}
};
return CanvasContext;
}());
// Vex Flow Notation
// Author Larry Kuhns 2011
// Implements barlines (single, double, repeat, end)
//
// Requires vex.js.
/**
* @constructor
*/
Vex.Flow.Barline = (function() {
function Barline(type, x) {
if (arguments.length > 0) this.init(type, x);
}
Barline.type = {
SINGLE: 1,
DOUBLE: 2,
END: 3,
REPEAT_BEGIN: 4,
REPEAT_END: 5,
REPEAT_BOTH: 6,
NONE: 7
};
Vex.Inherit(Barline, Vex.Flow.StaveModifier, {
init: function(type, x) {
Barline.superclass.init.call(this);
this.thickness = Vex.Flow.STAVE_LINE_THICKNESS;
this.barline = type;
this.x = x; // Left most x for the stave
},
getCategory: function() { return "barlines"; },
setX: function(x) { this.x = x; return this; },
// Draw barlines
draw: function(stave, x_shift) {
x_shift = typeof x_shift !== 'number' ? 0 : x_shift;
switch (this.barline) {
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.
if (x_shift > 0) {
this.drawVerticalBar(stave, this.x);
}
this.drawRepeatBar(stave, this.x + x_shift, true);
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;
}
},
drawVerticalBar: function(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);
},
drawVerticalEndBar: function(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);
},
drawRepeatBar: function(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;
}());
// VexFlow - Music Engraving for HTML5
// Copyright Mohit Muthanna 2010
// This class by Raffaele Viglianti, 2012 http://itisnotsound.wordpress.com/
//
// This class implements hairpins between notes.
// Hairpins can be either Crescendo or Descrescendo.
/**
* Create a new hairpin from the specified notes.
*
* @constructor
* @param {!Object} notes The notes to tie up.
* @param {!Object} type The type of hairpin
*/
Vex.Flow.StaveHairpin = (function() {
function StaveHairpin(notes, type) {
if (arguments.length > 0) this.init(notes, type);
}
StaveHairpin.type = {
CRESC: 1,
DECRESC: 2
};
/* 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
* }
*
**/
StaveHairpin.FormatByTicksAndDraw = function(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();
};
StaveHairpin.prototype = {
init: function(notes, type) {
/**
* Notes is a struct that has:
*
* {
* first_note: Note,
* last_note: Note,
* }
*
**/
this.notes = notes;
this.hairpin = type;
this.position = Vex.Flow.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 // right horizontal offset
};
this.setNotes(notes);
},
setContext: function(context) { this.context = context; return this; },
setPosition: function(position) {
if (position == Vex.Flow.Modifier.Position.ABOVE ||
position == Vex.Flow.Modifier.Position.BELOW)
this.position = position;
return this;
},
setRenderOptions: function(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.
*/
setNotes: function(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;
},
renderHairpin: function(params) {
var ctx = this.context;
var dis = this.render_options.y_shift + 20;
var y_shift = params.first_y;
if (this.position == Vex.Flow.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;
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();
},
draw: function() {
if (!this.context) throw new Vex.RERR("NoContext",
"Can't draw Hairpin without a context.");
var first_note = this.first_note;
var last_note = this.last_note;
var start = first_note.getModifierStartXY(this.position, 0);
var end = last_note.getModifierStartXY(this.position, 0);
this.renderHairpin({
first_x: start.x,
last_x: end.x,
first_y: first_note.getStave().y + first_note.getStave().height,
last_y: last_note.getStave().y + last_note.getStave().height,
staff_height: first_note.getStave().height
});
return true;
}
};
return StaveHairpin;
}());
// Vex Flow Notation
// Author Larry Kuhns 2011
// Implements voltas (repeat brackets)
//
// Requires vex.js.
Vex.Flow.Volta = (function() {
function Volta(type, number, x, y_shift) {
if (arguments.length > 0) this.init(type, number, x, y_shift);
}
Volta.type = {
NONE: 1,
BEGIN: 2,
MID: 3,
END: 4,
BEGIN_END: 5
};
Vex.Inherit(Volta, Vex.Flow.StaveModifier, {
init: function(type, number, x, y_shift) {
Volta.superclass.init.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"
};
},
getCategory: function() { return "voltas"; },
setShiftY: function(y) { this.y_shift = y; return this; },
draw: function(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 Vex.Flow.Volta.type.BEGIN:
ctx.fillRect(this.x + x, top_y, 1, vert_height);
break;
case Vex.Flow.Volta.type.END:
width -= 5;
ctx.fillRect(this.x + x + width, top_y, 1, vert_height);
break;
case Vex.Flow.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;
}
// 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;
}());
// Vex Flow Notation
// Author Larry Kuhns 2011
// Implements Repetitions (Coda, signo, D.C., etc.)
//
// Requires vex.js.
Vex.Flow.Repetition = (function() {
function Repetition(type, x, y_shift) {
if (arguments.length > 0) this.init(type, x, y_shift);
}
Repetition.type = {
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 // Fine at end of stave
};
Vex.Inherit(Repetition, Vex.Flow.StaveModifier, {
init: function(type, x, y_shift) {
Repetition.superclass.init.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"
};
},
getCategory: function() { return "repetitions"; },
setShiftX: function(x) { this.x_shift = x; return this; },
setShiftY: function(y) { this.y_shift = y; return this; },
draw: function(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;
},
drawCodaFixed: function(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;
Vex.Flow.renderGlyph(stave.context, this.x + x + this.x_shift,
y + 25, 40, "v4d", true);
return this;
},
drawSignoFixed: function(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;
Vex.Flow.renderGlyph(stave.context, this.x + x + this.x_shift,
y + 25, 30, "v8c", true);
return this;
},
drawSymbolText: function(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 == Vex.Flow.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) {
Vex.Flow.renderGlyph(ctx, symbol_x, y, 40, "v4d", true);
}
ctx.fillText(text, text_x, y + 5);
ctx.restore();
return this;
}
});
return Repetition;
}());
// VexFlow - Music Engraving for HTML5
// Copyright Mohit Muthanna 2010
// Author Larry Kuhns 2011
// Implements stave section names.
/**
* @constructor
*/
Vex.Flow.StaveSection = (function() {
function StaveSection(section, x, shift_y) {
if (arguments.length > 0) this.init(section, x, shift_y);
}
var Modifier = Vex.Flow.Modifier;
Vex.Inherit(StaveSection, Modifier, {
init: function(section, x, shift_y) {
StaveSection.superclass.init.call(this);
this.setWidth(16);
this.section = section;
this.position = Modifier.Position.ABOVE;
this.x = x;
this.shift_x = 0;
this.shift_y = shift_y;
this.font = {
family: "sans-serif",
size: 12,
weight: "bold"
};
},
getCategory: function() { return "stavesection"; },
setStaveSection: function(section) { this.section = section; return this; },
setShiftX: function(x) { this.shift_x = x; return this; },
setShiftY: function(y) { this.shift_y = y; return this; },
draw: function(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;
}());
// VexFlow - Music Engraving for HTML5
// Copyright Mohit Muthanna 2010
// Author Radosaw Eichler 2012
// Implements tempo marker.
/**
* @constructor
* @param {Object} tempo Tempo parameters: { name, duration, dots, bpm }
*/
Vex.Flow.StaveTempo = (function() {
function StaveTempo(tempo, x, shift_y) {
if (arguments.length > 0) this.init(tempo, x, shift_y);
}
Vex.Inherit(StaveTempo, Vex.Flow.StaveModifier, {
init: function(tempo, x, shift_y) {
StaveTempo.superclass.init.call(this);
this.tempo = tempo;
this.position = Vex.Flow.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 // font size for note
};
},
getCategory: function() { return "stavetempo"; },
setTempo: function(tempo) { this.tempo = tempo; return this; },
setShiftX: function(x) { this.shift_x = x; return this; },
setShiftY: function(y) { this.shift_y = y; return this; },
draw: function(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 = Vex.Flow.durationToGlyph(duration);
x += 3 * scale;
Vex.Flow.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) {
Vex.Flow.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;
}());
// VexFlow - Music Engraving for HTML5
// Copyright Mohit Muthanna 2010
//
// Author Taehoon Moon 2014
/**
* @constructor
*/
Vex.Flow.StaveText = (function() {
function StaveText(text, position, options) {
if (arguments.length > 0) this.init(text, position, options);
}
var Modifier = Vex.Flow.Modifier;
Vex.Inherit(StaveText, Modifier, {
init: function(text, position, options) {
StaveText.superclass.init.call(this);
this.setWidth(16);
this.text = text;
this.position = position;
this.options = {
shift_x: 0,
shift_y: 0,
justification: Vex.Flow.TextNote.Justification.CENTER
};
Vex.Merge(this.options, options);
this.font = {
family: "times",
size: 16,
weight: "normal"
};
},
getCategory: function() { return "stavetext"; },
setStaveText: function(text) { this.text = text; return this; },
setShiftX: function(x) { this.shift_x = x; return this; },
setShiftY: function(y) { this.shift_y = y; return this; },
setFont: function(font) {
Vex.Merge(this.font, font);
},
setText: function(text) {
this.text = text;
},
draw: function(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, y;
var Modifier = Vex.Flow.Modifier;
switch(this.position) {
case Modifier.Position.LEFT:
case Modifier.Position.RIGHT:
y = (stave.getYForLine(0) + stave.getBottomLineY()) / 2 + this.options.shift_y;
if(this.position == Modifier.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 Modifier.Position.ABOVE:
case Modifier.Position.BELOW:
var Justification = Vex.Flow.TextNote.Justification;
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 == Modifier.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;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
//
// A `BarNote` is used to render bar lines (from `barline.js`). `BarNote`s can
// be added to a voice and rendered in the middle of a stave. Since it has no
// duration, it consumes no `tick`s, and is dealt with appropriately by the formatter.
//
// See `tests/barnote_tests.js` for usage examples.
Vex.Flow.BarNote = (function() {
function BarNote() { this.init(); }
// To enable logging for this class. Set `Vex.Flow.BarNote.DEBUG` to `true`.
function L() { if (BarNote.DEBUG) Vex.L("Vex.Flow.BarNote", arguments); }
// ## Prototype Methods
Vex.Inherit(BarNote, Vex.Flow.Note, {
init: function() {
BarNote.superclass.init.call(this, {duration: "b"});
var TYPE = Vex.Flow.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]);
},
// Get and set the type of Bar note. `type` must be one of `Vex.Flow.Barline.type`.
getType: function() { return this.type; },
setType: function(type) {
this.type = type;
this.setWidth(this.metrics.widths[this.type]);
return this;
},
getBoundingBox: function() {
return new Vex.Flow.BoundingBox(0, 0, 0, 0);
},
addToModifierContext: function() {
/* overridden to ignore */
return this;
},
preFormat: function() {
/* overridden to ignore */
this.setPreFormatted(true);
return this;
},
// Render note to stave.
draw: function() {
if (!this.stave) throw new Vex.RERR("NoStave", "Can't draw without a stave.");
L("Rendering bar line at: ", this.getAbsoluteX());
var barline = new Vex.Flow.Barline(this.type, this.getAbsoluteX());
barline.draw(this.stave);
}
});
return BarNote;
}());
// VexFlow - Music Engraving for HTML5
// Author: Mike Corrigan <corrigan@gmail.com>
//
// This class implements tremolo notation.
/**
* @constructor
*/
Vex.Flow.Tremolo = (function() {
function Tremolo(num) {
if (arguments.length > 0) this.init(num);
}
var Modifier = Vex.Flow.Modifier;
Vex.Inherit(Tremolo, Modifier, {
init: function(num) {
Tremolo.superclass.init.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: ""
};
},
getCategory: function() { return "tremolo"; },
draw: function() {
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) {
Vex.Flow.renderGlyph(this.context, x, y,
this.render_options.font_scale, this.code);
y += this.y_spacing;
}
}
});
return Tremolo;
}());
/**
* Create a new tuplet from the specified notes. The notes must
* be part of the same line, and have the same duration (in ticks).
*
* @constructor
* @param {Array.<Vex.Flow.StaveNote>} A set of notes.
*/
Vex.Flow.Tuplet = (function() {
function Tuplet(notes, options) {
if (arguments.length > 0) this.init(notes, options);
}
Tuplet.LOCATION_TOP = 1;
Tuplet.LOCATION_BOTTOM = -1;
Tuplet.prototype = {
init: function(notes, options) {
if (!notes || notes == []) {
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;
this.beats_occupied = 'beats_occupied' in this.options ?
this.options.beats_occupied : 2;
this.bracketed = (notes[0].beam == null);
this.ratioed = false;
this.point = 28;
this.y_pos = 16;
this.x_pos = 100;
this.width = 200;
this.location = Tuplet.LOCATION_TOP;
Vex.Flow.Formatter.AlignRestsToNotes(notes, true, true);
this.resolveGlyphs();
this.attach();
},
attach: function () {
for (var i = 0; i < this.notes.length; i++) {
var note = this.notes[i];
note.setTuplet(this);
}
},
detach: function () {
for (var i = 0; i < this.notes.length; i++) {
var note = this.notes[i];
note.setTuplet(null);
}
},
setContext: function(context) {
this.context = context;
return this;
},
/**
* Set whether or not the bracket is drawn.
*/
setBracketed: function(bracketed) {
this.bracketed = bracketed ? true : false;
return this;
},
/**
* Set whether or not the ratio is shown.
*/
setRatioed: function(ratioed) {
this.ratioed = ratioed ? true : false;
return this;
},
/**
* Set the tuplet to be displayed either on the top or bottom of the stave
*/
setTupletLocation: function(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;
},
getNotes: function() {
return this.notes;
},
getNoteCount: function() {
return this.num_notes;
},
getBeatsOccupied: function() {
return this.beats_occupied;
},
setBeatsOccupied: function(beats) {
this.detach();
this.beats_occupied = beats;
this.resolveGlyphs();
this.attach();
},
resolveGlyphs: function() {
this.num_glyphs = [];
var n = this.num_notes;
while (n >= 1) {
this.num_glyphs.push(new Vex.Flow.Glyph("v" + (n % 10), this.point));
n = parseInt(n / 10, 10);
}
this.denom_glyphs = [];
n = this.beats_occupied;
while (n >= 1) {
this.denom_glyphs.push(new Vex.Flow.Glyph("v" + (n % 10), this.point));
n = parseInt(n / 10, 10);
}
},
draw: function() {
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
var i;
if (this.location == Tuplet.LOCATION_TOP) {
this.y_pos = first_note.getStave().getYForLine(0) - 15;
//this.y_pos = first_note.getStemExtents().topY - 10;
for (i=0; i<this.notes.length; ++i) {
var top_y = this.notes[i].getStemDirection() === Vex.Flow.Stem.UP ?
this.notes[i].getStemExtents().topY - 10
: this.notes[i].getStemExtents().baseY - 20;
if (top_y < this.y_pos)
this.y_pos = top_y;
}
}
else {
this.y_pos = first_note.getStave().getYForLine(4) + 20;
for (i=0; i<this.notes.length; ++i) {
var bottom_y = this.notes[i].getStemDirection() === Vex.Flow.Stem.UP ?
this.notes[i].getStemExtents().baseY + 20
: this.notes[i].getStemExtents().topY + 10;
if (bottom_y > this.y_pos)
this.y_pos = bottom_y;
}
}
// calculate total width of tuplet notation
var width = 0;
var glyph;
for (glyph in this.num_glyphs) {
width += this.num_glyphs[glyph].getMetrics().width;
}
if (this.ratioed) {
for (glyph in this.denom_glyphs) {
width += this.denom_glyphs[glyph].getMetrics().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;
var size = this.num_glyphs.length;
for (glyph in this.num_glyphs) {
this.num_glyphs[size-glyph-1].render(
this.context, notation_start_x + x_offset,
this.y_pos + (this.point/3) - 2);
x_offset += this.num_glyphs[size-glyph-1].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;
size = this.denom_glyphs.length;
for (glyph in this.denom_glyphs) {
this.denom_glyphs[size-glyph-1].render(
this.context, notation_start_x + x_offset,
this.y_pos + (this.point/3) - 2);
x_offset += this.denom_glyphs[size-glyph-1].getMetrics().width;
}
}
}
};
return Tuplet;
}());
// Vex Music Notation
// Mohit Muthanna <mohit@muthanna.com>
//
// Copyright Mohit Muthanna 2010
// Bounding boxes for interactive notation
/** @constructor */
Vex.Flow.BoundingBox = (function() {
function BoundingBox(x, y, w, h) { this.init(x, y, w, h); }
BoundingBox.copy = function(that) {
return new BoundingBox(that.x, that.y, that.w, that.h); };
BoundingBox.prototype = {
init: function(x, y, w, h) {
this.x = x;
this.y = y;
this.w = w;
this.h = h;
},
getX: function() { return this.x; },
getY: function() { return this.y; },
getW: function() { return this.w; },
getH: function() { return this.h; },
setX: function(x) { this.x = x; return this; },
setY: function(y) { this.y = y; return this; },
setW: function(w) { this.w = w; return this; },
setH: function(h) { this.h = h; return this; },
move: function(x, y) { this.x += x; this.y += y; },
clone: function() { return BoundingBox.copy(this); },
// Merge my box with given box. Creates a bigger bounding box unless
// the given box is contained in this one.
mergeWith: function(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;
},
draw: function(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;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
//
// `TextNote` is a notation element that is positioned in time. Generally
// meant for objects that sit above/below the staff and inline with each other.
// Examples of this would be such as dynamics, lyrics, chord changes, etc.
Vex.Flow.TextNote = (function() {
function TextNote(text_struct) {
if (arguments.length > 0) this.init(text_struct);
}
TextNote.Justification = {
LEFT: 1,
CENTER: 2,
RIGHT: 3
};
// Glyph data
TextNote.GLYPHS = {
"segno": {
code: "v8c",
point: 40,
x_shift: 0,
y_shift: -10
// width: 10 // optional
},
"tr": {
code: "v1f",
point: 40,
x_shift: 0,
y_shift: 0
// width: 10 // optional
},
"mordent_upper": {
code: "v1e",
point: 40,
x_shift: 0,
y_shift: 0
// width: 10 // optional
},
"mordent_lower": {
code: "v45",
point: 40,
x_shift: 0,
y_shift: 0
// width: 10 // optional
},
"f": {
code: "vba",
point: 40,
x_shift: 0,
y_shift: 0
// width: 10 // optional
},
"p": {
code: "vbf",
point: 40,
x_shift: 0,
y_shift: 0
// width: 10 // optional
},
"m": {
code: "v62",
point: 40,
x_shift: 0,
y_shift: 0
// width: 10 // optional
},
"s": {
code: "v4a",
point: 40,
x_shift: 0,
y_shift: 0
// width: 10 // optional
},
"z": {
code: "v80",
point: 40,
x_shift: 0,
y_shift: 0
// width: 10 // optional
},
"coda": {
code: "v4d",
point: 40,
x_shift: 0,
y_shift: -8
// width: 10 // optional
},
"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
// width: 10 // optional
},
};
// ## Prototype Methods
Vex.Inherit(TextNote, Vex.Flow.Note, {
init: function(text_struct) {
TextNote.superclass.init.call(this, text_struct);
// Note properties
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 Vex.Flow.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(Vex.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;
},
// Set the horizontal justification of the TextNote
setJustification: function(just) {
this.justification = just;
return this;
},
// Set the Stave line on which the note should be placed
setLine: function(line) {
this.line = line;
return this;
},
// Pre-render formatting
preFormat: function() {
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
draw: function() {
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;
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;
}());
// VexFlow - Music Engraving for HTML5
// Copyright Mohit Muthanna 2010
// Author Larry Kuhns 2013
// Class to draws string numbers into the notation.
/**
* @constructor
*/
Vex.Flow.FretHandFinger = (function() {
function FretHandFinger(number) {
if (arguments.length > 0) this.init(number);
}
FretHandFinger.CATEGORY = "frethandfinger";
var Modifier = Vex.Flow.Modifier;
// Arrange fingerings inside a ModifierContext.
FretHandFinger.format = function(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 shift_left = 0;
var shift_right = 0;
var i, num, note, pos, props_tmp;
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({ line: props.line, pos: pos, shiftL: shift_left, shiftR: shift_right, note: note, num: num });
}
// Sort fingernumbers by line number.
nums_list.sort(function(a, b) { return (b.line - a.line); });
var num_shiftL = 0;
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 == Vex.Flow.Modifier.Position.LEFT) {
num.setXShift(left_shift + num_shiftL);
num_shift = left_shift + num_width; // spacing
x_widthL = (num_shift > x_widthL) ? num_shift : x_widthL;
} else if (pos == Vex.Flow.Modifier.Position.RIGHT) {
num.setXShift(num_shiftR);
num_shift = shift_right + 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;
};
Vex.Inherit(FretHandFinger, Modifier, {
init: function(number) {
var superclass = Vex.Flow.FretHandFinger.superclass;
superclass.init.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"
};
},
getNote: function() { return this.note; },
setNote: function(note) { this.note = note; return this; },
getIndex: function() { return this.index; },
setIndex: function(index) { this.index = index; return this; },
getPosition: function() { return this.position; },
setPosition: function(position) {
if (position >= Modifier.Position.LEFT &&
position <= Modifier.Position.BELOW)
this.position = position;
return this;
},
setFretHandFinger: function(number) { this.finger = number; return this; },
setOffsetX: function(x) { this.x_offset = x; return this; },
setOffsetY: function(y) { this.y_offset = y; return this; },
draw: function() {
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;
}
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;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
// Author: Larry Kuhns
//
// ## Description
//
// This file implements the `StringNumber` class which renders string
// number annotations beside notes.
Vex.Flow.StringNumber = (function() {
function StringNumber(number) {
if (arguments.length > 0) this.init(number);
}
StringNumber.CATEGORY = "stringnumber";
var Modifier = Vex.Flow.Modifier;
// ## Static Methods
// Arrange string numbers inside a `ModifierContext`
StringNumber.format = function(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, num, note, pos, props_tmp;
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({ line: props.line, pos: pos, shiftL: shift_left, shiftR: shift_right, note: note, num: num });
}
}
// Sort string numbers by line number.
nums_list.sort(function(a, b) { return (b.line - a.line); });
var num_shiftL = 0;
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 == Vex.Flow.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 == Vex.Flow.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;
};
// ## Prototype Methods
Vex.Inherit(StringNumber, Modifier, {
init: function(number) {
StringNumber.superclass.init.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 = Vex.Flow.Renderer.LineEndType.NONE; // draw upward/downward leg at the of extension line
this.radius = 8;
this.font = {
family: "sans-serif",
size: 10,
weight: "bold"
};
},
getNote: function() { return this.note; },
setNote: function(note) { this.note = note; return this; },
getIndex: function() { return this.index; },
setIndex: function(index) { this.index = index; return this; },
setLineEndType: function(leg) {
if (leg >= Vex.Flow.Renderer.LineEndType.NONE &&
leg <= Vex.Flow.Renderer.LineEndType.DOWN)
this.leg = leg;
return this;
},
getPosition: function() { return this.position; },
setPosition: function(position) {
if (position >= Modifier.Position.LEFT &&
position <= Modifier.Position.BELOW)
this.position = position;
return this;
},
setStringNumber: function(number) { this.string_number = number; return this; },
setOffsetX: function(x) { this.x_offset = x; return this; },
setOffsetY: function(y) { this.y_offset = y; return this; },
setLastNote: function(note) { this.last_note = note; return this; },
setDashed: function(dashed) { this.dashed = dashed; return this; },
draw: function() {
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 == Vex.Flow.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;
}
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)
Vex.Flow.Renderer.drawDashedLine(ctx, dot_x + 10, dot_y, dot_x + end, dot_y, [3,3]);
else
Vex.Flow.Renderer.drawDashedLine(ctx, dot_x + 10, dot_y, dot_x + end, dot_y, [3,0]);
var len, pattern;
switch (this.leg) {
case Vex.Flow.Renderer.LineEndType.UP:
len = -10;
pattern = this.dashed ? [3,3] : [3,0];
Vex.Flow.Renderer.drawDashedLine(ctx, dot_x + end, dot_y, dot_x + end, dot_y + len, pattern);
break;
case Vex.Flow.Renderer.LineEndType.DOWN:
len = 10;
pattern = this.dashed ? [3,3] : [3,0];
Vex.Flow.Renderer.drawDashedLine(ctx, dot_x + end, dot_y, dot_x + end, dot_y + len, pattern);
break;
}
}
ctx.restore();
}
});
return StringNumber;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
// Author: Larry Kuhns
//
// ## Description
//
// This file implements the `Stroke` class which renders chord strokes
// that can be arpeggiated, brushed, rasquedo, etc.
Vex.Flow.Stroke = (function() {
function Stroke(type, options) {
if (arguments.length > 0) this.init(type, options);
}
Stroke.CATEGORY = "strokes";
Stroke.Type = {
BRUSH_DOWN: 1,
BRUSH_UP: 2,
ROLL_DOWN: 3, // Arpegiated chord
ROLL_UP: 4, // Arpegiated chord
RASQUEDO_DOWN: 5,
RASQUEDO_UP: 6
};
var Modifier = Vex.Flow.Modifier;
// ## Static Methods
// Arrange strokes inside `ModifierContext`
Stroke.format = function(strokes, state) {
var left_shift = state.left_shift;
var stroke_spacing = 0;
if (!strokes || strokes.length === 0) return this;
var str_list = [];
var i, str, shift;
for (i = 0; i < strokes.length; ++i) {
str = strokes[i];
var note = str.getNote();
var props;
if (note instanceof Vex.Flow.StaveNote) {
props = note.getKeyProps()[str.getIndex()];
shift = (props.displaced ? note.getExtraLeftPx() : 0);
str_list.push({ line: props.line, shift: shift, str: str });
} else {
props = note.getPositions()[str.getIndex()];
str_list.push({ line: props.str, shift: 0, str: str });
}
}
var str_shift = left_shift;
var x_shift = 0;
// There can only be one stroke .. if more than one, they overlay each other
for (i = 0; i < str_list.length; ++i) {
str = str_list[i].str;
shift = str_list[i].shift;
str.setXShift(str_shift + shift);
x_shift = Math.max(str.getWidth() + stroke_spacing, x_shift);
}
state.left_shift += x_shift;
return true;
};
// ## Prototype Methods
Vex.Inherit(Stroke, Modifier, {
init: function(type, options) {
Stroke.superclass.init.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);
},
getPosition: function() { return this.position; },
addEndNote: function(note) { this.note_end = note; return this; },
draw: function() {
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());
var i;
for (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, arrow_shift_x, arrow_y, text_shift_x, text_y;
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 Vex.Flow.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 Vex.Flow.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;
}
// 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 Vex.Flow.StaveNote) {
for (i = topY; i <= botY; i += line_space) {
Vex.Flow.renderGlyph(this.context, x + this.x_shift - 4,
i,
this.render_options.font_scale, "va3");
}
} else {
for (i = topY; i <= botY; i+= 10) {
Vex.Flow.renderGlyph(this.context, x + this.x_shift - 4,
i,
this.render_options.font_scale, "va3");
}
if (this.type == Vex.Flow.Stroke.Type.RASQUEDO_DOWN)
text_y = i + 0.25 * line_space;
}
}
// Draw the arrow head
Vex.Flow.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;
}());
// VexFlow - Music Engraving for HTML5
// Copyright Mohit Muthanna 2010
//
// This class implements curves (for slurs)
Vex.Flow.Curve = (function() {
// 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) {
if (arguments.length > 0) this.init(from, to, options);
}
Curve.Position = {
NEAR_HEAD: 1,
NEAR_TOP: 2
};
Curve.DEBUG = true;
Curve.prototype = {
init: function(from, to, options) {
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);
},
setContext: function(context) { this.context = context; return this; },
setNotes: function(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.
*/
isPartial: function() {
return (!this.from || !this.to);
},
renderCurve: function(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();
},
draw: function() {
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, last_x, first_y, last_y, stem_direction;
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;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
//
// This file implements `StaveLine` which are simply lines that connect
// two notes. This object is highly configurable, see the `render_options`.
// A simple line is often used for notating glissando articulations, but you
// can format a `StaveLine` with arrows or colors for more pedagogical
// purposes, such as diagrams.
Vex.Flow.StaveLine = (function() {
function StaveLine(notes) {
if (arguments.length > 0) this.init(notes);
}
// Text Positioning
StaveLine.TextVerticalPosition = {
TOP: 1,
BOTTOM: 2
};
StaveLine.TextJustification = {
LEFT: 1,
CENTER: 2,
RIGHT: 3
};
// ## Prototype Methods
StaveLine.prototype = {
// 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]
// }
// ```
init: function(notes) {
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
setContext: function(context) { this.context = context; return this; },
// Set the font for the `StaveLine` text
setFont: function(font) { this.font = font; return this; },
// The the annotation for the `StaveLine`
setText: function(text) { this.text = text; return this; },
// Set the notes for the `StaveLine`
setNotes: function(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
applyLineStyle: function() {
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
applyFontStyle: function() {
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
draw: function() {
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;
var end_position;
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);
}, this);
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;
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;
}
};
// ## Private Helpers
//
// 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, end_y, start_x, start_y;
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, angle2;
var top_x, top_y;
var bottom_x, bottom_y;
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);
}
}
return StaveLine;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
//
// This file implements the `Crescendo` object which draws crescendos and
// decrescendo dynamics markings. A `Crescendo` is initialized with a
// duration and formatted as part of a `Voice` like any other `Note`
// type in VexFlow. This object would most likely be formatted in a Voice
// with `TextNotes` - which are used to represent other dynamics markings.
Vex.Flow.Crescendo = (function() {
function Crescendo(note_struct) {
if (arguments.length > 0) this.init(note_struct);
}
// To enable logging for this class. Set `Vex.Flow.Crescendo.DEBUG` to `true`.
function L() { if (Crescendo.DEBUG) Vex.L("Vex.Flow.Crescendo", arguments); }
// 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();
}
// ## Prototype Methods
Vex.Inherit(Crescendo, Vex.Flow.Note, {
// Initialize the crescendo's properties
init: function(note_struct) {
Crescendo.superclass.init.call(this, note_struct);
// Whether the object is a decrescendo
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
});
},
// Set the line to center the element on
setLine: function(line) { this.line = line; return this; },
// Set the full height at the open end
setHeight: function(height) { this.height = height; return this; },
// Set whether the sign should be a descresendo by passing a bool
// to `decresc`
setDecrescendo: function(decresc) {
this.decrescendo = decresc;
return this;
},
// Preformat the note
preFormat: function() { this.preFormatted = true; return this; },
// Render the Crescendo object onto the canvas
draw: function() {
if (!this.context) throw new Vex.RERR("NoContext",
"Can't draw Hairpin without a context.");
var tick_context = this.getTickContext();
var next_context = Vex.Flow.TickContext.getNextContext(tick_context);
var begin_x = this.getAbsoluteX();
var end_x;
if (next_context) {
end_x = next_context.getX();
} else {
end_x = this.stave.x + this.stave.width;
}
var y = this.stave.getYForLine(this.line + (-3)) + 1;
L("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;
})();
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
// Author: Cyril Silverman
//
// ## Description
//
// This file implements ornaments as modifiers that can be
// attached to notes. The complete list of ornaments is available in
// `tables.js` under `Vex.Flow.ornamentCodes`.
//
// See `tests/ornament_tests.js` for usage examples.
Vex.Flow.Ornament = (function() {
function Ornament(type) {
if (arguments.length > 0) this.init(type);
}
Ornament.CATEGORY = "ornaments";
// 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
}
};
// To enable logging for this class. Set `Vex.Flow.Ornament.DEBUG` to `true`.
function L() { if (Ornament.DEBUG) Vex.L("Vex.Flow.Ornament", arguments); }
var Modifier = Vex.Flow.Modifier;
// ## Static Methods
// Arrange ornaments inside `ModifierContext`
Ornament.format = function(ornaments, state) {
if (!ornaments || ornaments.length === 0) return false;
var text_line = state.text_line;
var max_width = 0;
// Format Articulations
var width;
for (var i = 0; i < ornaments.length; ++i) {
var ornament = ornaments[i];
ornament.setTextLine(text_line);
width = ornament.getWidth() > max_width ?
ornament.getWidth() : max_width;
var type = Vex.Flow.ornamentCodes(ornament.type);
if(type.between_lines)
text_line += 1;
else
text_line += 1.5;
}
state.left_shift += width / 2;
state.right_shift += width / 2;
state.text_line = text_line;
return true;
};
// ## Prototype Methods
Vex.Inherit(Ornament, Modifier, {
// Create a new ornament of type `type`, which is an entry in
// `Vex.Flow.ornamentCodes` in `tables.js`.
init: function(type) {
Ornament.superclass.init.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 = Vex.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);
},
// Set whether the ornament is to be delayed
setDelayed: function(delayed) { this.delayed = delayed; return this; },
// Set the upper accidental for the ornament
setUpperAccidental: function(acc) {
this.accidental_upper = acc;
return this;
},
// Set the lower accidental for the ornament
setLowerAccidental: function(acc) {
this.accidental_lower = acc;
return this;
},
// Render ornament in position next to note.
draw: function() {
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, bottom;
if (stem_direction === Vex.Flow.StaveNote.STEM_DOWN) {
top = stem_ext.baseY;
bottom = stem_ext.topY;
} else {
top = stem_ext.topY;
bottom = stem_ext.baseY;
}
// 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 === Vex.Flow.StaveNote.STEM_UP) {
bottom = stave.getYForBottomText(this.text_line - 2);
} else if (stem_direction === Vex.Flow.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_on_head = stem_direction === Vex.Flow.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 = Vex.Flow.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 accidental = Vex.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
var mods = acc_mods[code];
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;
Vex.Flow.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("Rendering ornament: ", this.ornament, glyph_x, glyph_y);
Vex.Flow.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;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
//
// This file implements different types of pedal markings. These notation
// elements indicate to the performer when to depress and release the a pedal.
//
// In order to create "Sostenuto", and "una corda" markings, you must set
// custom text for the release/depress pedal markings.
Vex.Flow.PedalMarking = (function() {
function PedalMarking(type) {
if (arguments.length > 0) this.init(type);
}
// To enable logging for this class. Set `Vex.Flow.PedalMarking.DEBUG` to `true`.
function L() { if (PedalMarking.DEBUG) Vex.L("Vex.Flow.PedalMarking", arguments); }
// Glyph data
PedalMarking.GLYPHS = {
"pedal_depress": {
code: "v36",
x_shift:-10,
y_shift:0
},
"pedal_release": {
code: "v5d",
x_shift:-2,
y_shift:3
},
};
PedalMarking.Styles = {
TEXT: 1,
BRACKET: 2,
MIXED: 3
};
// ## Public helpers
//
// Create a sustain pedal marking. Returns the defaults PedalMarking.
// Which uses the traditional "Ped" and "*"" markings.
PedalMarking.createSustain = function(notes) {
var pedal = new PedalMarking(notes);
return pedal;
};
// Create a sostenuto pedal marking
PedalMarking.createSostenuto = function(notes) {
var pedal = new PedalMarking(notes);
pedal.setStyle(PedalMarking.Styles.MIXED);
pedal.setCustomText("Sost. Ped.");
return pedal;
};
// Create an una corda pedal marking
PedalMarking.createUnaCorda = function(notes){
var pedal = new PedalMarking(notes);
pedal.setStyle(PedalMarking.Styles.TEXT);
pedal.setCustomText("una corda", "tre corda");
return pedal;
};
// ## Prototype Methods
PedalMarking.prototype = {
init: function(notes) {
this.notes = notes;
this.style = Vex.Flow.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.
setCustomText: function(depress, release) {
this.custom_depress_text = depress || "";
this.custom_release_text = release || "";
return this;
},
// Set the pedal marking style
setStyle: function(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
setLine: function(line) { this.line = line; return this; },
// Set the rendering context
setContext: function(context) { this.context = context; return this; },
// Draw the bracket based pedal markings
drawBracketed: function() {
var ctx = this.context;
var is_pedal_depressed = false;
var prev_x;
var prev_y;
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.
drawText: function() {
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
draw: function() {
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("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 === Vex.Flow.PedalMarking.Styles.TEXT) {
this.drawText();
}
ctx.restore();
}
};
// ## Private Helper
//
// 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 Vex.Flow.Glyph(glyph_data.code, point);
glyph.render(context, x + glyph_data.x_shift, y + glyph_data.y_shift);
}
return PedalMarking;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
// Author: Cyril Silverman
//
// ## Description
//
// This file implement `TextBrackets` which extend between two notes.
// The octave transposition markings (8va, 8vb, 15va, 15vb) can be created
// using this class.
//
Vex.Flow.TextBracket = (function() {
function TextBracket(bracket_data) {
if (arguments.length > 0) this.init(bracket_data);
}
// To enable logging for this class. Set `Vex.Flow.TextBracket.DEBUG` to `true`.
function L() { if (TextBracket.DEBUG) Vex.L("Vex.Flow.TextBracket", arguments); }
TextBracket.Positions = {
TOP: 1,
BOTTOM: -1
};
// ## Prototype Methods
TextBracket.prototype = {
init: function(bracket_data) {
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`
applyStyle: function(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
setDashed: function(dashed, dash) {
this.render_options.dashed = dashed;
if (dash) this.render_options.dash = dash;
return this;
},
// Set the font for the text
setFont: function(font) { this.font = font; return this; },
// Set the rendering `context` for the octave bracket
setContext: function(context) { this.context = context; return this; },
// Set the staff line to render the bracket on
setLine: function(line) { this.line = line; return this; },
// Draw the octave bracket on the rendering context
draw: function() {
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;
}
// 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("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
Vex.Flow.Renderer.drawDashedLine(ctx, start_x, line_y, end_x, line_y,
this.render_options.dash);
// Ending Bracket
if (this.render_options.show_bracket) {
Vex.Flow.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;
})();
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
//
// This file implements the `TextDynamics` which renders traditional
// text dynamics markings, **ie: p, f, sfz, rfz, ppp**
//
// You can render any dynamics string that contains a combination of
// the following letters: P, M, F, Z, R, S
Vex.Flow.TextDynamics = (function(){
function TextDynamics(text_struct) {
if (arguments.length > 0) this.init(text_struct);
}
// To enable logging for this class. Set `Vex.Flow.TextDynamics.DEBUG` to `true`.
function L() { if (TextDynamics.DEBUG) Vex.L("Vex.Flow.TextDynamics", arguments); }
// The glyph data for each dynamics letter
TextDynamics.GLYPHS = {
"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
}
};
// ## Prototype Methods
//
// A `TextDynamics` object inherits from `Note` so that it can be formatted
// within a `Voice`.
Vex.Inherit(TextDynamics, Vex.Flow.Note, {
// 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
init: function(text_struct) {
TextDynamics.superclass.init.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("New Dynamics Text: ", this.sequence);
},
// Set the Stave line on which the note should be placed
setLine: function(line) { this.line = line; return this; },
// Preformat the dynamics text
preFormat: function() {
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 = this.render_options.glyph_font_size;
var glyph = new Vex.Flow.Glyph(glyph_data.code, size);
// Add the glyph
this.glyphs.push(glyph);
total_width += glyph_data.width;
}, this);
// Store the width of the text
this.setWidth(total_width);
this.preFormatted = true;
return this;
},
// Draw the dynamics text on the rendering context
draw: function() {
var x = this.getAbsoluteX();
var y = this.stave.getYForLine(this.line + (-3));
L("Rendering Dynamics: ", this.sequence);
var letter_x = x;
this.glyphs.forEach(function(glyph, index) {
var current_letter = this.sequence[index];
glyph.render(this.context, letter_x, y);
letter_x += TextDynamics.GLYPHS[current_letter].width;
}, this);
}
});
return TextDynamics;
})();
Vex.Flow.GraceNote = (function() {
var GraceNote = function(note_struct) {
if (arguments.length > 0) this.init(note_struct);
};
Vex.Inherit(GraceNote, Vex.Flow.StaveNote, {
init: function(note_struct) {
GraceNote.superclass.init.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;
},
getStemExtension: function(){
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;
},
getCategory: function() { return 'gracenotes'; },
draw: function(){
GraceNote.superclass.draw.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.lineTo(x, y);
ctx.lineTo(x + 13, y - 9);
} else if (stem_direction === -1) {
x -= 4;
y += 1;
ctx.lineTo(x, y);
ctx.lineTo(x + 13, y + 9);
}
ctx.closePath();
ctx.stroke();
}
}
});
return GraceNote;
}());
// [VexFlow](http://vexflow.com) - Copyright (c) Mohit Muthanna 2010.
//
// ## Description
//
// This file implements `GraceNoteGroup` which is used to format and
// render grace notes.
Vex.Flow.GraceNoteGroup = (function(){
function GraceNoteGroup(grace_notes, config) {
if (arguments.length > 0) this.init(grace_notes, config);
}
GraceNoteGroup.CATEGORY = "gracenotegroups";
// To enable logging for this class. Set `Vex.Flow.GraceNoteGroup.DEBUG` to `true`.
function L() { if (GraceNoteGroup.DEBUG) Vex.L("Vex.Flow.GraceNoteGroup", arguments); }
// Arrange groups inside a `ModifierContext`
GraceNoteGroup.format = function(gracenote_groups, state) {
var gracenote_spacing = 4;
if (!gracenote_groups || gracenote_groups.length === 0) return false;
var group_list = [];
var hasStave = false;
var prev_note = null;
var shiftL = 0;
var i, gracenote_group, props_tmp;
for (i = 0; i < gracenote_groups.length; ++i) {
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) {
props_tmp = note.getKeyProps()[n];
shiftL = (props_tmp.displaced ? note.getExtraLeftPx() : shiftL);
}
prev_note = note;
}
if (stave != null) {
hasStave = true;
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;
for (i = 0; i < group_list.length; ++i) {
gracenote_group = group_list[i].gracenote_group;
gracenote_group.preFormat();
group_shift = gracenote_group.getWidth() + gracenote_spacing;
}
state.left_shift += group_shift;
return true;
};
// ## Prototype Methods
//
// `GraceNoteGroup` inherits from `Modifier` and is placed inside a
// `ModifierContext`.
Vex.Inherit(GraceNoteGroup, Vex.Flow.Modifier, {
init: function(grace_notes, show_slur) {
var superclass = GraceNoteGroup.superclass;
superclass.init.call(this);
this.note = null;
this.index = null;
this.position = Vex.Flow.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 Vex.Flow.Formatter();
this.voice = new Vex.Flow.Voice({
num_beats: 4,
beat_value: 4,
resolution: Vex.Flow.RESOLUTION
}).setStrict(false);
this.voice.addTickables(this.grace_notes);
return this;
},
preFormat: function(){
if (this.preFormatted) return;
this.formatter.joinVoices([this.voice]).format([this.voice], 0);
this.setWidth(this.formatter.getMinTotalWidth());
this.preFormatted = true;
},
beamNotes: function(){
if (this.grace_notes.length > 1) {
var beam = new Vex.Flow.Beam(this.grace_notes);
beam.render_options.beam_width = 3;
beam.render_options.partial_beam_length = 4;
this.beam = beam;
}
return this;
},
setNote: function(note) {
this.note = note;
},
setWidth: function(width){
this.width = width;
},
getWidth: function(){
return this.width;
},
setXShift: function(x_shift) {
this.x_shift = x_shift;
},
draw: function() {
if (!this.context) {
throw new Vex.RuntimeError("NoContext",
"Can't draw Grace note without a context.");
}
var note = this.getNote();
L("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.");
}
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;
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);
// Draw notes
this.grace_notes.forEach(function(graceNote) {
graceNote.setContext(this.context).draw();
}, this);
// Draw beam
if (this.beam) {
this.beam.setContext(this.context).draw();
}
if (this.show_slur) {
// Create and draw slur
this.slur = new Vex.Flow.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;
}());
},{}],11:[function(require,module,exports){
},{}],12:[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":13}],13:[function(require,module,exports){
// shim for using process in browser
var process = module.exports = {};
var queue = [];
var draining = false;
function drainQueue() {
if (draining) {
return;
}
draining = true;
var currentQueue;
var len = queue.length;
while(len) {
currentQueue = queue;
queue = [];
var i = -1;
while (++i < len) {
currentQueue[i]();
}
len = queue.length;
}
draining = false;
}
process.nextTick = function (fun) {
queue.push(fun);
if (!draining) {
setTimeout(drainQueue, 0);
}
};
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
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');
};
// TODO(shtylman)
process.cwd = function () { return '/' };
process.chdir = function (dir) {
throw new Error('process.chdir is not supported');
};
process.umask = function() { return 0; };
},{}]},{},[2]);