d2-ui
Version:
904 lines (764 loc) • 29.8 kB
JavaScript
/*
* Copyright (C) 2007-2015 Diego Perini
* All rights reserved.
*
* nwmatcher-noqsa.js - A fast CSS selector engine and matcher
*
* Author: Diego Perini <diego.perini at gmail com>
* Version: 1.3.7
* Created: 20070722
* Release: 20151120
*
* License:
* http://javascript.nwbox.com/NWMatcher/MIT-LICENSE
* Download:
* http://javascript.nwbox.com/NWMatcher/nwmatcher.js
*/
(function(global, factory) {
if (typeof module == 'object' && typeof exports == 'object') {
module.exports = function (browserGlobal) {
// passed global does not contain
// references to native objects
browserGlobal.console = console;
browserGlobal.parseInt = parseInt;
browserGlobal.Function = Function;
browserGlobal.Boolean = Boolean;
browserGlobal.Number = Number;
browserGlobal.RegExp = RegExp;
browserGlobal.String = String;
browserGlobal.Object = Object;
browserGlobal.Array = Array;
browserGlobal.Error = Error;
browserGlobal.Date = Date;
browserGlobal.Math = Math;
var exports = browserGlobal.Object();
factory(browserGlobal, exports);
return exports;
};
module.factory = factory;
} else {
factory(global,
(global.NW || (global.NW = global.Object())) &&
(global.NW.Dom || (global.NW.Dom = global.Object())));
global.NW.Dom.factory = factory;
}
})(this, function(global, exports) {
var version = 'nwmatcher-1.3.7',
Dom = exports,
doc = global.document,
root = doc.documentElement,
isSingleMatch,
isSingleSelect,
lastSlice,
lastContext,
lastPosition,
lastMatcher,
lastSelector,
lastPartsMatch,
lastPartsSelect,
operators = '([~*^$|!]?={1})',
combinators = '[\\s]|[>+~](?=[^>+~])',
pseudoparms = '(?:[-+]?\\d*n)?[-+]?\\d*',
quotedvalue = '"[^"\\\\]*(?:\\\\.[^"\\\\]*)*"' + "|'[^'\\\\]*(?:\\\\.[^'\\\\]*)*'",
skipgroup = '\\[.*\\]|\\(.*\\)|\\{.*\\}',
encoding = '(?:[-\\w]|[^\\x00-\\xa0]|\\\\.)',
identifier = '(?:-?[_a-zA-Z]{1}[-\\w]*|[^\\x00-\\xa0]+|\\\\.+)+',
attrcheck = '(' + quotedvalue + '|' + identifier + ')',
attributes = '\\s*(' + encoding + '*:?' + encoding + '+)\\s*(?:' + operators + '\\s*' + attrcheck + ')?\\s*',
attrmatcher = attributes.replace(attrcheck, '([\\x22\\x27]*)((?:\\\\?.)*?)\\3'),
pseudoclass = '((?:' +
pseudoparms + '|' + quotedvalue + '|' +
'[#.:]?|' + encoding + '+|' +
'\\[' + attributes + '\\]|' +
'\\(.+\\)|\\s*|' +
',)+)',
extensions = '.+',
standardValidator =
'(?=\\s*[^>+~(){}<>])' +
'(' +
'\\*' +
'|(?:[#.:]?' + identifier + ')' +
'|' + combinators +
'|\\[' + attributes + '\\]' +
'|\\(' + pseudoclass + '\\)' +
'|\\{' + extensions + '\\}' +
'|(?:,|\\s*)' +
')+',
extendedValidator = standardValidator.replace(pseudoclass, '.*'),
reValidator = global.RegExp(standardValidator),
reTrimSpaces = /^\s*|\s*$/g,
reSimpleNot = global.RegExp('^(' +
'(?!:not)' +
'([#.:]?' +
'|' + identifier +
'|\\([^()]*\\))+' +
'|\\[' + attributes + '\\]' +
')$'),
reSplitGroup = /([^,\\()[\]]+|\[[^[\]]*\]|\[.*\]|\([^()]+\)|\(.*\)|\{[^{}]+\}|\{.*\}|\\.)+/g,
reSplitToken = global.RegExp('(' +
'\\[' + attributes + '\\]|' +
'\\(' + pseudoclass + '\\)|' +
'\\\\.|[^\\s>+~])+', 'g'),
reOptimizeSelector = global.RegExp(identifier + '|^$'),
QUIRKS_MODE,
XML_DOCUMENT,
GEBTN = 'getElementsByTagName' in doc,
GEBCN = 'getElementsByClassName' in doc,
LINK_NODES = global.Object({ a: 1, A: 1, area: 1, AREA: 1, link: 1, LINK: 1 }),
ATTR_BOOLEAN = global.Object({
checked: 1, disabled: 1, ismap: 1,
multiple: 1, readonly: 1, selected: 1
}),
ATTR_DEFAULT = global.Object({
value: 'defaultValue',
checked: 'defaultChecked',
selected: 'defaultSelected'
}),
ATTR_URIDATA = global.Object({
action: 2, cite: 2, codebase: 2, data: 2, href: 2,
longdesc: 2, lowsrc: 2, src: 2, usemap: 2
}),
Selectors = global.Object({
}),
Operators = global.Object({
'=': "n=='%m'",
'^=': "n.indexOf('%m')==0",
'*=': "n.indexOf('%m')>-1",
'|=': "(n+'-').indexOf('%m-')==0",
'~=': "(' '+n+' ').indexOf(' %m ')>-1",
'$=': "n.substr(n.length-'%m'.length)=='%m'"
}),
Optimize = global.Object({
ID: global.RegExp('^\\*?#(' + encoding + '+)|' + skipgroup),
TAG: global.RegExp('^(' + encoding + '+)|' + skipgroup),
CLASS: global.RegExp('^\\*?\\.(' + encoding + '+$)|' + skipgroup)
}),
Patterns = global.Object({
spseudos: /^\:(root|empty|(?:first|last|only)(?:-child|-of-type)|nth(?:-last)?(?:-child|-of-type)\(\s*(even|odd|(?:[-+]{0,1}\d*n\s*)?[-+]{0,1}\s*\d*)\s*\))?(.*)/i,
dpseudos: /^\:(link|visited|target|active|focus|hover|checked|disabled|enabled|selected|lang\(([-\w]{2,})\)|not\(([^()]*|.*)\))?(.*)/i,
attribute: global.RegExp('^\\[' + attrmatcher + '\\](.*)'),
children: /^\s*\>\s*(.*)/,
adjacent: /^\s*\+\s*(.*)/,
relative: /^\s*\~\s*(.*)/,
ancestor: /^\s+(.*)/,
universal: /^\*(.*)/,
id: global.RegExp('^#(' + encoding + '+)(.*)'),
tagName: global.RegExp('^(' + encoding + '+)(.*)'),
className: global.RegExp('^\\.(' + encoding + '+)(.*)')
}),
concatCall =
function(data, elements, callback) {
var i = -1, element;
while ((element = elements[++i])) {
if (false === callback(data[data.length] = element)) { break; }
}
return data;
},
switchContext =
function(from, force) {
var oldDoc = doc;
lastContext = from;
doc = from.ownerDocument || from;
if (force || oldDoc !== doc) {
root = doc.documentElement;
XML_DOCUMENT = doc.createElement('DiV').nodeName == 'DiV';
QUIRKS_MODE = !XML_DOCUMENT &&
typeof doc.compatMode == 'string' ?
doc.compatMode.indexOf('CSS') < 0 :
(function() {
var style = doc.createElement('div').style;
return style && (style.width = 1) && style.width == '1px';
})();
Config.CACHING && Dom.setCache(true, doc);
}
},
convertEscapes =
function(str) {
return str.replace(/\\([0-9a-fA-F]{1,6}\x20?|.)|([\x22\x27])/g, function(substring, p1, p2) {
var codePoint, highHex, highSurrogate, lowHex, lowSurrogate;
if (p2) {
return '\\' + p2;
}
if (/^[0-9a-fA-F]/.test(p1)) {
codePoint = parseInt(p1, 16);
if (codePoint < 0 || codePoint > 0x10ffff) {
return '\\ufffd';
}
if (codePoint <= 0xffff) {
lowHex = '000' + codePoint.toString(16);
return '\\u' + lowHex.substr(lowHex.length - 4);
}
codePoint -= 0x10000;
highSurrogate = (codePoint >> 10) + 0xd800;
lowSurrogate = (codePoint % 0x400) + 0xdc00;
highHex = '000' + highSurrogate.toString(16);
lowHex = '000' + lowSurrogate.toString(16);
return '\\u' + highHex.substr(highHex.length - 4) +
'\\u' + lowHex.substr(lowHex.length - 4);
}
if (/^[\\\x22\x27]/.test(p1)) {
return substring;
}
return p1;
});
},
byIdRaw =
function(id, elements) {
var i = -1, element = null;
while ((element = elements[++i])) {
if (element.getAttribute('id') == id) {
break;
}
}
return element;
},
_byId = !('fileSize' in doc) ?
function(id, from) {
id = id.replace(/\\([^\\]{1})/g, '$1');
return from.getElementById && from.getElementById(id) ||
byIdRaw(id, from.getElementsByTagName('*'));
} :
function(id, from) {
var element = null;
id = id.replace(/\\([^\\]{1})/g, '$1');
if (XML_DOCUMENT || from.nodeType != 9) {
return byIdRaw(id, from.getElementsByTagName('*'));
}
if ((element = from.getElementById(id)) &&
element.name == id && from.getElementsByName) {
return byIdRaw(id, from.getElementsByName(id));
}
return element;
},
byId =
function(id, from) {
from || (from = doc);
if (lastContext !== from) { switchContext(from); }
return _byId(id, from);
},
byTagRaw =
function(tag, from) {
var any = tag == '*', element = from, elements = global.Array(), next = element.firstChild;
any || (tag = tag.toUpperCase());
while ((element = next)) {
if (element.tagName > '@' && (any || element.tagName.toUpperCase() == tag)) {
elements[elements.length] = element;
}
if ((next = element.firstChild || element.nextSibling)) continue;
while (!next && (element = element.parentNode) && element !== from) {
next = element.nextSibling;
}
}
return elements;
},
contains = 'compareDocumentPosition' in root ?
function(container, element) {
return (container.compareDocumentPosition(element) & 16) == 16;
} : 'contains' in root ?
function(container, element) {
return element.nodeType == 1 && container.contains(element);
} :
function(container, element) {
while ((element = element.parentNode) && element.nodeType == 1) {
if (element === container) return true;
}
return false;
},
getAttribute =
function(node, attribute) {
attribute = attribute.toLowerCase();
if (typeof node[attribute] == 'object') {
return node.attributes[attribute] &&
node.attributes[attribute].value;
}
return (
attribute == 'type' ? node.getAttribute(attribute) :
ATTR_URIDATA[attribute] ? node.getAttribute(attribute, 2) :
ATTR_BOOLEAN[attribute] ? node.getAttribute(attribute) ? attribute : 'false' :
(node = node.getAttributeNode(attribute)) && node.value);
},
hasAttribute = root.hasAttribute ?
function(node, attribute) {
return node.hasAttribute(attribute);
} :
function(node, attribute) {
var obj = node.getAttributeNode(attribute = attribute.toLowerCase());
return ATTR_DEFAULT[attribute] && attribute != 'value' ?
node[ATTR_DEFAULT[attribute]] : obj && obj.specified;
},
isLink =
function(element) {
return element.getAttribute('href') && LINK_NODES[element.nodeName];
},
isEmpty =
function(node) {
node = node.firstChild;
while (node) {
if (node.nodeType == 3 || node.nodeName > '@') return false;
node = node.nextSibling;
}
return true;
},
nthElement =
function(element, last) {
var count = 1, succ = last ? 'nextSibling' : 'previousSibling';
while ((element = element[succ])) {
if (element.nodeName > '@') ++count;
}
return count;
},
nthOfType =
function(element, last) {
var count = 1, succ = last ? 'nextSibling' : 'previousSibling', type = element.nodeName;
while ((element = element[succ])) {
if (element.nodeName == type) ++count;
}
return count;
},
configure =
function(option) {
if (typeof option == 'string') { return Config[option] || Config; }
if (typeof option != 'object') { return false; }
for (var i in option) {
Config[i] = !!option[i];
if (i == 'SIMPLENOT') {
matchContexts = global.Object();
matchResolvers = global.Object();
selectContexts = global.Object();
selectResolvers = global.Object();
}
}
reValidator = global.RegExp(Config.SIMPLENOT ?
standardValidator : extendedValidator);
return true;
},
emit =
function(message) {
if (Config.VERBOSITY) { throw global.Error(message); }
if (global.console && global.console.log) {
global.console.log(message);
}
},
Config = global.Object({
CACHING: false,
SIMPLENOT: true,
UNIQUE_ID: true,
USE_HTML5: true,
VERBOSITY: true
}),
IE_LT_9 = typeof doc.addEventListener != 'function',
INSENSITIVE_MAP = global.Object({
href: 1, lang: 1, src: 1, style: 1, title: 1,
type: 1, xmlns: 1, 'xml:lang': 1, 'xml:space': 1
}),
TO_UPPER_CASE = IE_LT_9 ? '.toUpperCase()' : '',
ACCEPT_NODE = 'r[r.length]=c[k];if(f&&false===f(c[k]))break main;else continue main;',
REJECT_NODE = IE_LT_9 ? 'if(e.nodeName<"A")continue;' : '',
compile =
function(selector, source, mode) {
var parts = typeof selector == 'string' ? selector.match(reSplitGroup) : selector;
typeof source == 'string' || (source = '');
if (parts.length == 1) {
source += compileSelector(parts[0], mode ? ACCEPT_NODE : 'f&&f(k);return true;', mode);
} else {
var i = -1, seen = global.Object(), token;
while ((token = parts[++i])) {
token = token.replace(reTrimSpaces, '');
if (!seen[token] && (seen[token] = true)) {
source += compileSelector(token, mode ? ACCEPT_NODE : 'f&&f(k);return true;', mode);
}
}
}
if (mode) {
return global.Function('c,s,r,d,h,g,f,v',
'var N,n,x=0,k=-1,e;main:while((e=c[++k])){' + source + '}return r;');
} else {
return global.Function('e,s,r,d,h,g,f,v',
'var N,n,x=0,k=e;' + source + 'return false;');
}
},
FILTER =
'var z=v[@]||(v[@]=[]),l=z.length-1;' +
'while(l>=0&&z[l]!==e)--l;' +
'if(l!==-1){break;}' +
'z[z.length]=e;',
compileSelector =
function(selector, source, mode) {
var a, b, n, k = 0, expr, match, name, result, status, test, type;
while (selector) {
k++;
if ((match = selector.match(Patterns.universal))) {
expr = '';
}
else if ((match = selector.match(Patterns.id))) {
source = 'if(' + (XML_DOCUMENT ?
's.getAttribute(e,"id")' :
'(e.submit?s.getAttribute(e,"id"):e.id)') +
'=="' + match[1] + '"' +
'){' + source + '}';
}
else if ((match = selector.match(Patterns.tagName))) {
source = 'if(e.nodeName' + (XML_DOCUMENT ?
'=="' + match[1] + '"' : TO_UPPER_CASE +
'=="' + match[1].toUpperCase() + '"') +
'){' + source + '}';
}
else if ((match = selector.match(Patterns.className))) {
source = 'if((n=' + (XML_DOCUMENT ?
'e.getAttribute("class")' : 'e.className') +
')&&n.length&&(" "+' + (QUIRKS_MODE ? 'n.toLowerCase()' : 'n') +
'.replace(/\\s+/g," ")+" ").indexOf(" ' +
(QUIRKS_MODE ? match[1].toLowerCase() : match[1]) + ' ")>-1' +
'){' + source + '}';
}
else if ((match = selector.match(Patterns.attribute))) {
if (match[2] && !Operators[match[2]]) {
emit('Unsupported operator in attribute selectors "' + selector + '"');
return '';
}
test = 'false';
if (match[2] && match[4] && (test = Operators[match[2]])) {
match[4] = convertEscapes(match[4]);
type = INSENSITIVE_MAP[match[1].toLowerCase()];
test = test.replace(/\%m/g, type ? match[4].toLowerCase() : match[4]);
} else if (match[2] == '!=' || match[2] == '=') {
test = 'n' + match[2] + '=""';
}
source = 'if(n=s.hasAttribute(e,"' + match[1] + '")){' +
(match[2] ? 'n=s.getAttribute(e,"' + match[1] + '")' : '') +
(type && match[2] ? '.toLowerCase();' : ';') +
'if(' + (match[2] ? test : 'n') + '){' + source + '}}';
}
else if ((match = selector.match(Patterns.adjacent))) {
source = (mode ? '' : FILTER.replace(/@/g, k)) + source;
source = 'var N' + k + '=e;while(e&&(e=e.previousSibling)){if(e.nodeName>"@"){' + source + 'break;}}e=N' + k + ';';
}
else if ((match = selector.match(Patterns.relative))) {
source = (mode ? '' : FILTER.replace(/@/g, k)) + source;
source = 'var N' + k + '=e;e=e.parentNode.firstChild;while(e&&e!==N' + k + '){if(e.nodeName>"@"){' + source + '}e=e.nextSibling;}e=N' + k + ';';
}
else if ((match = selector.match(Patterns.children))) {
source = (mode ? '' : FILTER.replace(/@/g, k)) + source;
source = 'var N' + k + '=e;while(e&&e!==h&&e!==g&&(e=e.parentNode)){' + source + 'break;}e=N' + k + ';';
}
else if ((match = selector.match(Patterns.ancestor))) {
source = (mode ? '' : FILTER.replace(/@/g, k)) + source;
source = 'var N' + k + '=e;while(e&&e!==h&&e!==g&&(e=e.parentNode)){' + source + '}e=N' + k + ';';
}
else if ((match = selector.match(Patterns.spseudos)) && match[1]) {
switch (match[1]) {
case 'root':
if (match[3]) {
source = 'if(e===h||s.contains(h,e)){' + source + '}';
} else {
source = 'if(e===h){' + source + '}';
}
break;
case 'empty':
source = 'if(s.isEmpty(e)){' + source + '}';
break;
default:
if (match[1] && match[2]) {
if (match[2] == 'n') {
source = 'if(e!==h){' + source + '}';
break;
} else if (match[2] == 'even') {
a = 2;
b = 0;
} else if (match[2] == 'odd') {
a = 2;
b = 1;
} else {
b = ((n = match[2].match(/(-?\d+)$/)) ? global.parseInt(n[1], 10) : 0);
a = ((n = match[2].match(/(-?\d*)n/i)) ? global.parseInt(n[1], 10) : 0);
if (n && n[1] == '-') a = -1;
}
test = a > 1 ?
(/last/i.test(match[1])) ? '(n-(' + b + '))%' + a + '==0' :
'n>=' + b + '&&(n-(' + b + '))%' + a + '==0' : a < -1 ?
(/last/i.test(match[1])) ? '(n-(' + b + '))%' + a + '==0' :
'n<=' + b + '&&(n-(' + b + '))%' + a + '==0' : a === 0 ?
'n==' + b : a == -1 ? 'n<=' + b : 'n>=' + b;
source =
'if(e!==h){' +
'n=s[' + (/-of-type/i.test(match[1]) ? '"nthOfType"' : '"nthElement"') + ']' +
'(e,' + (/last/i.test(match[1]) ? 'true' : 'false') + ');' +
'if(' + test + '){' + source + '}' +
'}';
} else {
a = /first/i.test(match[1]) ? 'previous' : 'next';
n = /only/i.test(match[1]) ? 'previous' : 'next';
b = /first|last/i.test(match[1]);
type = /-of-type/i.test(match[1]) ? '&&n.nodeName!=e.nodeName' : '&&n.nodeName<"@"';
source = 'if(e!==h){' +
( 'n=e;while((n=n.' + a + 'Sibling)' + type + ');if(!n){' + (b ? source :
'n=e;while((n=n.' + n + 'Sibling)' + type + ');if(!n){' + source + '}') + '}' ) + '}';
}
break;
}
}
else if ((match = selector.match(Patterns.dpseudos)) && match[1]) {
switch (match[1].match(/^\w+/)[0]) {
case 'not':
expr = match[3].replace(reTrimSpaces, '');
if (Config.SIMPLENOT && !reSimpleNot.test(expr)) {
emit('Negation pseudo-class only accepts simple selectors "' + match.join('') + '"');
return '';
} else {
if ('compatMode' in doc) {
source = 'if(!' + compile(expr, '', false) + '(e,s,r,d,h,g)){' + source + '}';
} else {
source = 'if(!s.match(e, "' + expr.replace(/\x22/g, '\\"') + '",g)){' + source +'}';
}
}
break;
case 'checked':
source = 'if((typeof e.form!=="undefined"&&(/^(?:radio|checkbox)$/i).test(e.type)&&e.checked)' +
(Config.USE_HTML5 ? '||(/^option$/i.test(e.nodeName)&&(e.selected||e.checked))' : '') +
'){' + source + '}';
break;
case 'disabled':
source = 'if(((typeof e.form!=="undefined"' +
(Config.USE_HTML5 ? '' : '&&!(/^hidden$/i).test(e.type)') +
')||s.isLink(e))&&e.disabled===true){' + source + '}';
break;
case 'enabled':
source = 'if(((typeof e.form!=="undefined"' +
(Config.USE_HTML5 ? '' : '&&!(/^hidden$/i).test(e.type)') +
')||s.isLink(e))&&e.disabled===false){' + source + '}';
break;
case 'lang':
test = '';
if (match[2]) test = match[2].substr(0, 2) + '-';
source = 'do{(n=e.lang||"").toLowerCase();' +
'if((n==""&&h.lang=="' + match[2].toLowerCase() + '")||' +
'(n&&(n=="' + match[2].toLowerCase() +
'"||n.substr(0,3)=="' + test.toLowerCase() + '")))' +
'{' + source + 'break;}}while((e=e.parentNode)&&e!==g);';
break;
case 'target':
source = 'if(e.id==d.location.hash.slice(1)){' + source + '}';
break;
case 'link':
source = 'if(s.isLink(e)&&!e.visited){' + source + '}';
break;
case 'visited':
source = 'if(s.isLink(e)&&e.visited){' + source + '}';
break;
case 'active':
source = 'if(e===d.activeElement){' + source + '}';
break;
case 'hover':
source = 'if(e===d.hoverElement){' + source + '}';
break;
case 'focus':
source = 'hasFocus' in doc ?
'if(e===d.activeElement&&d.hasFocus()&&(e.type||e.href||typeof e.tabIndex=="number")){' + source + '}' :
'if(e===d.activeElement&&(e.type||e.href)){' + source + '}';
break;
case 'selected':
source = 'if(/^option$/i.test(e.nodeName)&&(e.selected||e.checked)){' + source + '}';
break;
default:
break;
}
}
else {
expr = false;
status = false;
for (expr in Selectors) {
if ((match = selector.match(Selectors[expr].Expression)) && match[1]) {
result = Selectors[expr].Callback(match, source);
source = result.source;
status = result.status;
if (status) { break; }
}
}
if (!status) {
emit('Unknown pseudo-class selector "' + selector + '"');
return '';
}
if (!expr) {
emit('Unknown token in selector "' + selector + '"');
return '';
}
}
if (!match) {
emit('Invalid syntax in selector "' + selector + '"');
return '';
}
selector = match && match[match.length - 1];
}
return source;
},
match =
function(element, selector, from, callback) {
var parts;
if (!(element && element.nodeType == 1)) {
emit('Invalid element argument');
return false;
} else if (typeof selector != 'string') {
emit('Invalid selector argument');
return false;
} else if (lastContext !== from) {
switchContext(from || (from = element.ownerDocument));
}
selector = selector.replace(reTrimSpaces, '');
Config.SHORTCUTS && (selector = Dom.shortcuts(selector, element, from));
if (lastMatcher != selector) {
if ((parts = selector.match(reValidator)) && parts[0] == selector) {
isSingleMatch = (parts = selector.match(reSplitGroup)).length < 2;
lastMatcher = selector;
lastPartsMatch = parts;
} else {
emit('The string "' + selector + '", is not a valid CSS selector');
return false;
}
} else parts = lastPartsMatch;
if (!matchResolvers[selector] || matchContexts[selector] !== from) {
matchResolvers[selector] = compile(isSingleMatch ? [selector] : parts, '', false);
matchContexts[selector] = from;
}
return matchResolvers[selector](element, Snapshot, [ ], doc, root, from, callback, { });
},
first =
function(selector, from) {
return select(selector, from, function() { return false; })[0] || null;
},
select =
function(selector, from, callback) {
var i, changed, element, elements, parts, token, original = selector;
if (arguments.length === 0) {
emit('Not enough arguments');
return [ ];
} else if (typeof selector != 'string') {
return [ ];
} else if (from && !(/1|9|11/).test(from.nodeType)) {
emit('Invalid or illegal context element');
return [ ];
} else if (lastContext !== from) {
switchContext(from || (from = doc));
}
if (Config.CACHING && (elements = Dom.loadResults(original, from, doc, root))) {
return callback ? concatCall([ ], elements, callback) : elements;
}
selector = selector.replace(reTrimSpaces, '');
Config.SHORTCUTS && (selector = Dom.shortcuts(selector, from));
if ((changed = lastSelector != selector)) {
if ((parts = selector.match(reValidator)) && parts[0] == selector) {
isSingleSelect = (parts = selector.match(reSplitGroup)).length < 2;
lastSelector = selector;
lastPartsSelect = parts;
} else {
emit('The string "' + selector + '", is not a valid CSS selector');
return [ ];
}
} else parts = lastPartsSelect;
if (from.nodeType == 11) {
elements = byTagRaw('*', from);
} else if (isSingleSelect) {
if (changed) {
parts = selector.match(reSplitToken);
token = parts[parts.length - 1];
lastSlice = token.split(':not')[0];
lastPosition = selector.length - token.length;
}
if (Config.UNIQUE_ID && (parts = lastSlice.match(Optimize.ID)) && (token = parts[1])) {
if ((element = _byId(token, from))) {
if (match(element, selector)) {
callback && callback(element);
elements = global.Array(element);
} else elements = global.Array();
}
}
else if (Config.UNIQUE_ID && (parts = selector.match(Optimize.ID)) && (token = parts[1])) {
if ((element = _byId(token, doc))) {
if ('#' + token == selector) {
callback && callback(element);
elements = global.Array(element);
} else if (/[>+~]/.test(selector)) {
from = element.parentNode;
} else {
from = element;
}
} else elements = global.Array();
}
if (elements) {
Config.CACHING && Dom.saveResults(original, from, doc, elements);
return elements;
}
if (!XML_DOCUMENT && GEBTN && (parts = lastSlice.match(Optimize.TAG)) && (token = parts[1])) {
if ((elements = from.getElementsByTagName(token)).length === 0) { return [ ]; }
selector = selector.slice(0, lastPosition) + selector.slice(lastPosition).replace(token, '*');
}
else if (!XML_DOCUMENT && GEBCN && (parts = lastSlice.match(Optimize.CLASS)) && (token = parts[1])) {
if ((elements = from.getElementsByClassName(token.replace(/\\([^\\]{1})/g, '$1'))).length === 0) { return [ ]; }
selector = selector.slice(0, lastPosition) + selector.slice(lastPosition).replace('.' + token,
reOptimizeSelector.test(selector.charAt(selector.indexOf(token) - 1)) ? '' : '*');
}
}
if (!elements) {
if (IE_LT_9) {
elements = /^(?:applet|object)$/i.test(from.nodeName) ? from.childNodes : from.all;
} else {
elements = from.getElementsByTagName('*');
}
}
if (!selectResolvers[selector] || selectContexts[selector] !== from) {
selectResolvers[selector] = compile(isSingleSelect ? [selector] : parts, REJECT_NODE, true);
selectContexts[selector] = from;
}
elements = selectResolvers[selector](elements, Snapshot, [ ], doc, root, from, callback, { });
Config.CACHING && Dom.saveResults(original, from, doc, elements);
return elements;
},
FN = function(x) { return x; },
matchContexts = global.Object(),
matchResolvers = global.Object(),
selectContexts = global.Object(),
selectResolvers = global.Object(),
Snapshot = global.Object({
byId: _byId,
match: match,
select: select,
isLink: isLink,
isEmpty: isEmpty,
contains: contains,
nthOfType: nthOfType,
nthElement: nthElement,
getAttribute: getAttribute,
hasAttribute: hasAttribute
});
Dom.ACCEPT_NODE = ACCEPT_NODE;
Dom.byId = byId;
Dom.match = match;
Dom.first = first;
Dom.select = select;
Dom.compile = compile;
Dom.contains = contains;
Dom.configure = configure;
Dom.getAttribute = getAttribute;
Dom.hasAttribute = hasAttribute;
Dom.setCache = FN;
Dom.shortcuts = FN;
Dom.loadResults = FN;
Dom.saveResults = FN;
Dom.emit = emit;
Dom.Config = Config;
Dom.Snapshot = Snapshot;
Dom.Operators = Operators;
Dom.Selectors = Selectors;
Dom.Version = version;
Dom.registerOperator =
function(symbol, resolver) {
Operators[symbol] || (Operators[symbol] = resolver);
};
Dom.registerSelector =
function(name, rexp, func) {
Selectors[name] || (Selectors[name] = global.Object({
Expression: rexp,
Callback: func
}));
};
switchContext(doc, true);
});