862 lines
20 KiB
JavaScript
862 lines
20 KiB
JavaScript
/*
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* Sizzle CSS Selector Engine - v0.9
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* Copyright 2009, John Resig (http://ejohn.org/)
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* released under the MIT License
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*/
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(function(){
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var chunker = /((?:\((?:\([^()]+\)|[^()]+)+\)|\[(?:\[[^[\]]+\]|[^[\]]+)+\]|\\.|[^ >+~,(\[]+)+|[>+~])(\s*,\s*)?/g;
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var done = 0;
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var Sizzle = function(selector, context, results, seed) {
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var doCache = !results;
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results = results || [];
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context = context || document;
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if ( context.nodeType !== 1 && context.nodeType !== 9 )
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return [];
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if ( !selector || typeof selector !== "string" ) {
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return results;
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}
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var parts = [], m, set, checkSet, check, mode, extra;
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// Reset the position of the chunker regexp (start from head)
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chunker.lastIndex = 0;
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while ( (m = chunker.exec(selector)) !== null ) {
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parts.push( m[1] );
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if ( m[2] ) {
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extra = RegExp.rightContext;
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break;
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}
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}
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if ( parts.length > 1 && Expr.match.POS.exec( selector ) ) {
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if ( parts.length === 2 && Expr.relative[ parts[0] ] ) {
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var later = "", match;
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// Position selectors must be done after the filter
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while ( (match = Expr.match.POS.exec( selector )) ) {
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later += match[0];
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selector = selector.replace( Expr.match.POS, "" );
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}
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set = Sizzle.filter( later, Sizzle( selector, context ) );
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} else {
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set = Expr.relative[ parts[0] ] ?
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[ context ] :
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Sizzle( parts.shift(), context );
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while ( parts.length ) {
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var tmpSet = [];
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selector = parts.shift();
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if ( Expr.relative[ selector ] )
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selector += parts.shift();
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for ( var i = 0, l = set.length; i < l; i++ ) {
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Sizzle( selector, set[i], tmpSet );
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}
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set = tmpSet;
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}
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}
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} else {
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var ret = seed ?
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{ expr: parts.pop(), set: makeArray(seed) } :
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Sizzle.find( parts.pop(), parts.length === 1 && context.parentNode ? context.parentNode : context );
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set = Sizzle.filter( ret.expr, ret.set );
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if ( parts.length > 0 ) {
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checkSet = makeArray(set);
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}
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while ( parts.length ) {
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var cur = parts.pop(), pop = cur;
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if ( !Expr.relative[ cur ] ) {
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cur = "";
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} else {
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pop = parts.pop();
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}
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if ( pop == null ) {
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pop = context;
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}
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Expr.relative[ cur ]( checkSet, pop );
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}
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}
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if ( !checkSet ) {
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checkSet = set;
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}
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if ( !checkSet ) {
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throw "Syntax error, unrecognized expression: " + (cur || selector);
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}
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if ( checkSet instanceof Array ) {
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if ( context.nodeType === 1 ) {
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for ( var i = 0; checkSet[i] != null; i++ ) {
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if ( checkSet[i] && (checkSet[i] === true || checkSet[i].nodeType === 1 && contains(context, checkSet[i])) ) {
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results.push( set[i] );
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}
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}
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} else {
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for ( var i = 0; checkSet[i] != null; i++ ) {
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if ( checkSet[i] && checkSet[i].nodeType === 1 ) {
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results.push( set[i] );
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}
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}
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}
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} else {
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makeArray( checkSet, results );
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}
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if ( extra ) {
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Sizzle( extra, context, results );
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}
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return results;
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};
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Sizzle.matches = function(expr, set){
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return Sizzle(expr, null, null, set);
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};
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Sizzle.find = function(expr, context){
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var set, match;
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if ( !expr ) {
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return [];
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}
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var later = "", match;
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// Pseudo-selectors could contain other selectors (like :not)
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while ( (match = Expr.match.PSEUDO.exec( expr )) ) {
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var left = RegExp.leftContext;
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if ( left.substr( left.length - 1 ) !== "\\" ) {
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later += match[0];
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expr = expr.replace( Expr.match.PSEUDO, "" );
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} else {
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// TODO: Need a better solution, fails: .class\:foo:realfoo(#id)
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break;
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}
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}
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for ( var i = 0, l = Expr.order.length; i < l; i++ ) {
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var type = Expr.order[i];
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if ( (match = Expr.match[ type ].exec( expr )) ) {
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var left = RegExp.leftContext;
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if ( left.substr( left.length - 1 ) !== "\\" ) {
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match[1] = (match[1] || "").replace(/\\/g, "");
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set = Expr.find[ type ]( match, context );
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if ( set != null ) {
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expr = expr.replace( Expr.match[ type ], "" );
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break;
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}
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}
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}
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}
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if ( !set ) {
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set = context.getElementsByTagName("*");
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}
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expr += later;
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return {set: set, expr: expr};
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};
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Sizzle.filter = function(expr, set, inplace){
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var old = expr, result = [], curLoop = set, match;
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while ( expr && set.length ) {
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for ( var type in Expr.filter ) {
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if ( (match = Expr.match[ type ].exec( expr )) != null ) {
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var anyFound = false, filter = Expr.filter[ type ], goodArray = null;
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if ( curLoop == result ) {
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result = [];
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}
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if ( Expr.preFilter[ type ] ) {
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match = Expr.preFilter[ type ]( match, curLoop );
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if ( match[0] === true ) {
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goodArray = [];
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var last = null, elem;
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for ( var i = 0; (elem = curLoop[i]) !== undefined; i++ ) {
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if ( elem && last !== elem ) {
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goodArray.push( elem );
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last = elem;
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}
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}
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}
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}
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var goodPos = 0, found, item;
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for ( var i = 0; (item = curLoop[i]) !== undefined; i++ ) {
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if ( item ) {
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if ( goodArray && item != goodArray[goodPos] ) {
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goodPos++;
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}
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found = filter( item, match, goodPos, goodArray );
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if ( inplace && found != null ) {
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curLoop[i] = found ? curLoop[i] : false;
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if ( found ) {
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anyFound = true;
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}
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} else if ( found ) {
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result.push( item );
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anyFound = true;
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}
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}
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}
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if ( found !== undefined ) {
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if ( !inplace ) {
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curLoop = result;
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}
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expr = expr.replace( Expr.match[ type ], "" );
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if ( !anyFound ) {
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return [];
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}
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break;
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}
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}
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}
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expr = expr.replace(/\s*,\s*/, "");
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// Improper expression
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if ( expr == old ) {
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throw "Syntax error, unrecognized expression: " + expr;
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}
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old = expr;
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}
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return curLoop;
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};
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var Expr = Sizzle.selectors = {
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order: [ "ID", "NAME", "TAG" ],
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match: {
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ID: /#((?:[\w\u0128-\uFFFF_-]|\\.)+)/,
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CLASS: /\.((?:[\w\u0128-\uFFFF_-]|\\.)+)/,
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NAME: /\[name=((?:[\w\u0128-\uFFFF_-]|\\.)+)\]/,
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ATTR: /\[((?:[\w\u0128-\uFFFF_-]|\\.)+)\s*(?:(\S{0,1}=)\s*(['"]*)(.*?)\3|)\]/,
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TAG: /^((?:[\w\u0128-\uFFFF\*_-]|\\.)+)/,
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CHILD: /:(only|nth|last|first)-child\(?(even|odd|[\dn+-]*)\)?/,
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POS: /:(nth|eq|gt|lt|first|last|even|odd)\(?(\d*)\)?(?:[^-]|$)/,
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PSEUDO: /:((?:[\w\u0128-\uFFFF_-]|\\.)+)(?:\((['"]*)((?:\([^\)]+\)|[^\2\(\)]*)+)\2\))?/
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},
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attrMap: {
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"class": "className"
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},
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relative: {
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"+": function(checkSet, part){
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for ( var i = 0, l = checkSet.length; i < l; i++ ) {
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var elem = checkSet[i];
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if ( elem ) {
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var cur = elem.previousSibling;
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while ( cur && cur.nodeType !== 1 ) {
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cur = cur.previousSibling;
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}
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checkSet[i] = typeof part === "string" ?
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cur || false :
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cur === part;
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}
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}
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if ( typeof part === "string" ) {
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Sizzle.filter( part, checkSet, true );
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}
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},
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">": function(checkSet, part){
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if ( typeof part === "string" && !/\W/.test(part) ) {
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part = part.toUpperCase();
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for ( var i = 0, l = checkSet.length; i < l; i++ ) {
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var elem = checkSet[i];
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if ( elem ) {
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var parent = elem.parentNode;
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checkSet[i] = parent.nodeName === part ? parent : false;
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}
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}
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} else {
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for ( var i = 0, l = checkSet.length; i < l; i++ ) {
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var elem = checkSet[i];
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if ( elem ) {
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checkSet[i] = typeof part === "string" ?
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elem.parentNode :
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elem.parentNode === part;
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}
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}
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if ( typeof part === "string" ) {
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Sizzle.filter( part, checkSet, true );
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}
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}
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},
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"": function(checkSet, part){
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var doneName = "done" + (done++), checkFn = dirCheck;
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if ( !part.match(/\W/) ) {
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var nodeCheck = part = part.toUpperCase();
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checkFn = dirNodeCheck;
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}
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checkFn("parentNode", part, doneName, checkSet, nodeCheck);
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},
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"~": function(checkSet, part){
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var doneName = "done" + (done++), checkFn = dirCheck;
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if ( typeof part === "string" && !part.match(/\W/) ) {
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var nodeCheck = part = part.toUpperCase();
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checkFn = dirNodeCheck;
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}
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checkFn("previousSibling", part, doneName, checkSet, nodeCheck);
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}
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},
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find: {
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ID: function(match, context){
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if ( context.getElementById ) {
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var m = context.getElementById(match[1]);
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return m ? [m] : [];
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}
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},
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NAME: function(match, context){
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return context.getElementsByName(match[1]);
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},
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TAG: function(match, context){
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return context.getElementsByTagName(match[1]);
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}
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},
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preFilter: {
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CLASS: function(match){
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return new RegExp( "(?:^|\\s)" + match[1] + "(?:\\s|$)" );
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},
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ID: function(match){
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return match[1];
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},
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TAG: function(match){
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return match[1].toUpperCase();
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},
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CHILD: function(match){
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if ( match[1] == "nth" ) {
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// parse equations like 'even', 'odd', '5', '2n', '3n+2', '4n-1', '-n+6'
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var test = /(-?)(\d*)n((?:\+|-)?\d*)/.exec(
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match[2] == "even" && "2n" || match[2] == "odd" && "2n+1" ||
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!/\D/.test( match[2] ) && "0n+" + match[2] || match[2]);
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// calculate the numbers (first)n+(last) including if they are negative
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match[2] = (test[1] + (test[2] || 1)) - 0;
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match[3] = test[3] - 0;
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}
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// TODO: Move to normal caching system
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match[0] = "done" + (done++);
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return match;
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},
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ATTR: function(match){
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var name = match[1];
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if ( Expr.attrMap[name] ) {
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match[1] = Expr.attrMap[name];
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}
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if ( match[2] === "~=" ) {
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match[4] = " " + match[4] + " ";
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}
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return match;
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},
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PSEUDO: function(match){
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if ( match[1] === "not" ) {
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match[3] = match[3].split(/\s*,\s*/);
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}
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return match;
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},
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POS: function(match){
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match.unshift( true );
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return match;
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}
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},
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filters: {
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enabled: function(elem){
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return elem.disabled === false && elem.type !== "hidden";
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},
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disabled: function(elem){
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return elem.disabled === true;
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},
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checked: function(elem){
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return elem.checked === true;
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},
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selected: function(elem){
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// Accessing this property makes selected-by-default
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// options in Safari work properly
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elem.parentNode.selectedIndex;
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return elem.selected === true;
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},
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parent: function(elem){
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return !!elem.firstChild;
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},
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empty: function(elem){
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return !elem.firstChild;
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},
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has: function(elem, i, match){
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return !!Sizzle( match[3], elem ).length;
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},
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header: function(elem){
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return /h\d/i.test( elem.nodeName );
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},
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text: function(elem){
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return "text" === elem.type;
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},
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radio: function(elem){
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return "radio" === elem.type;
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},
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checkbox: function(elem){
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return "checkbox" === elem.type;
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},
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file: function(elem){
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return "file" === elem.type;
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},
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password: function(elem){
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return "password" === elem.type;
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},
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submit: function(elem){
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return "submit" === elem.type;
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},
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image: function(elem){
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return "image" === elem.type;
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},
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reset: function(elem){
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return "reset" === elem.type;
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},
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button: function(elem){
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return "button" === elem.type || elem.nodeName.toUpperCase() === "BUTTON";
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},
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input: function(elem){
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return /input|select|textarea|button/i.test(elem.nodeName);
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}
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},
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setFilters: {
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first: function(elem, i){
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return i === 0;
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},
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last: function(elem, i, match, array){
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return i === array.length - 1;
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},
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even: function(elem, i){
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return i % 2 === 0;
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},
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odd: function(elem, i){
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return i % 2 === 1;
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},
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lt: function(elem, i, match){
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return i < match[3] - 0;
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},
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gt: function(elem, i, match){
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return i > match[3] - 0;
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},
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nth: function(elem, i, match){
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return match[3] - 0 == i;
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},
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eq: function(elem, i, match){
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return match[3] - 0 == i;
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}
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},
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filter: {
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CHILD: function(elem, match){
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var type = match[1], parent = elem.parentNode;
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var doneName = match[0];
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if ( parent && !parent[ doneName ] ) {
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var count = 1;
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for ( var node = parent.firstChild; node; node = node.nextSibling ) {
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if ( node.nodeType == 1 ) {
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node.nodeIndex = count++;
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}
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}
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parent[ doneName ] = count - 1;
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}
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if ( type == "first" ) {
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return elem.nodeIndex == 1;
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} else if ( type == "last" ) {
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return elem.nodeIndex == parent[ doneName ];
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} else if ( type == "only" ) {
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return parent[ doneName ] == 1;
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} else if ( type == "nth" ) {
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var add = false, first = match[2], last = match[3];
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if ( first == 1 && last == 0 ) {
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return true;
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}
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if ( first == 0 ) {
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if ( elem.nodeIndex == last ) {
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add = true;
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}
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} else if ( (elem.nodeIndex - last) % first == 0 && (elem.nodeIndex - last) / first >= 0 ) {
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add = true;
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}
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return add;
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}
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},
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PSEUDO: function(elem, match, i, array){
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var name = match[1], filter = Expr.filters[ name ];
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if ( filter ) {
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return filter( elem, i, match, array )
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} else if ( name === "contains" ) {
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return (elem.textContent || elem.innerText || "").indexOf(match[3]) >= 0;
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} else if ( name === "not" ) {
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var not = match[3];
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for ( var i = 0, l = not.length; i < l; i++ ) {
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if ( Sizzle.filter(not[i], [elem]).length > 0 ) {
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return false;
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}
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}
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return true;
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}
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},
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ID: function(elem, match){
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return elem.nodeType === 1 && elem.getAttribute("id") === match;
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},
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TAG: function(elem, match){
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return (match === "*" && elem.nodeType === 1) || elem.nodeName === match;
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},
|
|
CLASS: function(elem, match){
|
|
return match.test( elem.className );
|
|
},
|
|
ATTR: function(elem, match){
|
|
var result = elem[ match[1] ] || elem.getAttribute( match[1] ), value = result + "", type = match[2], check = match[4];
|
|
return result == null ?
|
|
false :
|
|
type === "=" ?
|
|
value === check :
|
|
type === "*=" ?
|
|
value.indexOf(check) >= 0 :
|
|
type === "~=" ?
|
|
(" " + value + " ").indexOf(check) >= 0 :
|
|
!match[4] ?
|
|
result :
|
|
type === "!=" ?
|
|
value != check :
|
|
type === "^=" ?
|
|
value.indexOf(check) === 0 :
|
|
type === "$=" ?
|
|
value.substr(value.length - check.length) === check :
|
|
type === "|=" ?
|
|
value === check || value.substr(0, check.length + 1) === check + "-" :
|
|
false;
|
|
},
|
|
POS: function(elem, match, i, array){
|
|
var name = match[2], filter = Expr.setFilters[ name ];
|
|
|
|
if ( filter ) {
|
|
return filter( elem, i, match, array );
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
var makeArray = function(array, results) {
|
|
array = Array.prototype.slice.call( array );
|
|
|
|
if ( results ) {
|
|
results.push.apply( results, array );
|
|
return results;
|
|
}
|
|
|
|
return array;
|
|
};
|
|
|
|
// Perform a simple check to determine if the browser is capable of
|
|
// converting a NodeList to an array using builtin methods.
|
|
try {
|
|
Array.prototype.slice.call( document.documentElement.childNodes );
|
|
|
|
// Provide a fallback method if it does not work
|
|
} catch(e){
|
|
makeArray = function(array, results) {
|
|
var ret = results || [];
|
|
|
|
if ( array instanceof Array ) {
|
|
Array.prototype.push.apply( ret, array );
|
|
} else {
|
|
if ( typeof array.length === "number" ) {
|
|
for ( var i = 0, l = array.length; i < l; i++ ) {
|
|
ret.push( array[i] );
|
|
}
|
|
} else {
|
|
for ( var i = 0; array[i]; i++ ) {
|
|
ret.push( array[i] );
|
|
}
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
};
|
|
}
|
|
|
|
// Check to see if the browser returns elements by name when
|
|
// querying by getElementById (and provide a workaround)
|
|
(function(){
|
|
// We're going to inject a fake input element with a specified name
|
|
var form = document.createElement("form"),
|
|
id = "script" + (new Date).getTime();
|
|
form.innerHTML = "<input name='" + id + "'/>";
|
|
|
|
// Inject it into the root element, check its status, and remove it quickly
|
|
var root = document.documentElement;
|
|
root.insertBefore( form, root.firstChild );
|
|
|
|
// The workaround has to do additional checks after a getElementById
|
|
// Which slows things down for other browsers (hence the branching)
|
|
if ( !!document.getElementById( id ) ) {
|
|
Expr.find.ID = function(match, context){
|
|
if ( context.getElementById ) {
|
|
var m = context.getElementById(match[1]);
|
|
return m ? m.id === match[1] || m.getAttributeNode && m.getAttributeNode("id").nodeValue === match[1] ? [m] : undefined : [];
|
|
}
|
|
};
|
|
|
|
Expr.filter.ID = function(elem, match){
|
|
var node = elem.getAttributeNode && elem.getAttributeNode("id");
|
|
return elem.nodeType === 1 && node && node.nodeValue === match;
|
|
};
|
|
}
|
|
|
|
root.removeChild( form );
|
|
})();
|
|
|
|
// Check to see if the browser returns only elements
|
|
// when doing getElementsByTagName("*")
|
|
(function(){
|
|
// Create a fake element
|
|
var div = document.createElement("div");
|
|
div.appendChild( document.createComment("") );
|
|
|
|
// Make sure no comments are found
|
|
if ( div.getElementsByTagName("*").length > 0 ) {
|
|
Expr.find.TAG = function(match, context){
|
|
var results = context.getElementsByTagName(match[1]);
|
|
|
|
// Filter out possible comments
|
|
if ( match[1] === "*" ) {
|
|
var tmp = [];
|
|
|
|
for ( var i = 0; results[i]; i++ ) {
|
|
if ( results[i].nodeType === 1 ) {
|
|
tmp.push( results[i] );
|
|
}
|
|
}
|
|
|
|
results = tmp;
|
|
}
|
|
|
|
return results;
|
|
};
|
|
}
|
|
})();
|
|
|
|
if ( document.querySelectorAll ) (function(){
|
|
var oldSizzle = Sizzle;
|
|
|
|
Sizzle = function(query, context, extra){
|
|
context = context || document;
|
|
|
|
if ( context.nodeType === 9 ) {
|
|
try {
|
|
return makeArray( context.querySelectorAll(query) );
|
|
} catch(e){}
|
|
}
|
|
|
|
return oldSizzle(query, context, extra);
|
|
};
|
|
|
|
Sizzle.find = oldSizzle.find;
|
|
Sizzle.filter = oldSizzle.filter;
|
|
Sizzle.selectors = oldSizzle.selectors;
|
|
})();
|
|
|
|
if ( document.documentElement.getElementsByClassName ) {
|
|
Expr.order.splice(1, 0, "CLASS");
|
|
Expr.find.CLASS = function(match, context) {
|
|
return context.getElementsByClassName(match[1]);
|
|
};
|
|
}
|
|
|
|
function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck ) {
|
|
for ( var i = 0, l = checkSet.length; i < l; i++ ) {
|
|
var elem = checkSet[i];
|
|
if ( elem ) {
|
|
elem = elem[dir]
|
|
var match = false;
|
|
|
|
while ( elem && elem.nodeType ) {
|
|
var done = elem[doneName];
|
|
if ( done ) {
|
|
match = checkSet[ done ];
|
|
break;
|
|
}
|
|
|
|
if ( elem.nodeType === 1 )
|
|
elem[doneName] = i;
|
|
|
|
if ( elem.nodeName === cur ) {
|
|
match = elem;
|
|
break;
|
|
}
|
|
|
|
elem = elem[dir];
|
|
}
|
|
|
|
checkSet[i] = match;
|
|
}
|
|
}
|
|
}
|
|
|
|
function dirCheck( dir, cur, doneName, checkSet, nodeCheck ) {
|
|
for ( var i = 0, l = checkSet.length; i < l; i++ ) {
|
|
var elem = checkSet[i];
|
|
if ( elem ) {
|
|
elem = elem[dir]
|
|
var match = false;
|
|
|
|
while ( elem && elem.nodeType ) {
|
|
if ( elem[doneName] ) {
|
|
match = checkSet[ elem[doneName] ];
|
|
break;
|
|
}
|
|
|
|
if ( elem.nodeType === 1 ) {
|
|
elem[doneName] = i;
|
|
|
|
if ( typeof cur !== "string" ) {
|
|
if ( elem === cur ) {
|
|
match = true;
|
|
break;
|
|
}
|
|
|
|
} else if ( Sizzle.filter( cur, [elem] ).length > 0 ) {
|
|
match = elem;
|
|
break;
|
|
}
|
|
}
|
|
|
|
elem = elem[dir];
|
|
}
|
|
|
|
checkSet[i] = match;
|
|
}
|
|
}
|
|
}
|
|
|
|
var contains = document.compareDocumentPosition ? function(a, b){
|
|
return a.compareDocumentPosition(b) & 16;
|
|
} : function(a, b){
|
|
return a !== b && a.contains(b);
|
|
};
|
|
|
|
// EXPOSE
|
|
jQuery.find = Sizzle;
|
|
jQuery.filter = Sizzle.filter;
|
|
jQuery.expr = Sizzle.selectors;
|
|
jQuery.expr[":"] = jQuery.expr.filters;
|
|
|
|
Sizzle.selectors.filters.hidden = function(elem){
|
|
return "hidden" === elem.type ||
|
|
jQuery.css(elem, "display") === "none" ||
|
|
jQuery.css(elem, "visibility") === "hidden";
|
|
};
|
|
|
|
Sizzle.selectors.filters.visible = function(elem){
|
|
return "hidden" !== elem.type &&
|
|
jQuery.css(elem, "display") !== "none" &&
|
|
jQuery.css(elem, "visibility") !== "hidden";
|
|
};
|
|
|
|
jQuery.multiFilter = function( expr, elems, not ) {
|
|
if ( not ) {
|
|
return jQuery.multiFilter( ":not(" + expr + ")", elems );
|
|
}
|
|
|
|
var exprs = expr.split(/\s*,\s*/), cur = [];
|
|
|
|
for ( var i = 0; i < exprs.length; i++ ) {
|
|
cur = jQuery.merge( cur, jQuery.filter( exprs[i], elems ) );
|
|
}
|
|
|
|
return cur;
|
|
};
|
|
|
|
jQuery.dir = function( elem, dir ){
|
|
var matched = [], cur = elem[dir];
|
|
while ( cur && cur != document ) {
|
|
if ( cur.nodeType == 1 )
|
|
matched.push( cur );
|
|
cur = cur[dir];
|
|
}
|
|
return matched;
|
|
};
|
|
|
|
jQuery.nth = function(cur, result, dir, elem){
|
|
result = result || 1;
|
|
var num = 0;
|
|
|
|
for ( ; cur; cur = cur[dir] )
|
|
if ( cur.nodeType == 1 && ++num == result )
|
|
break;
|
|
|
|
return cur;
|
|
};
|
|
|
|
jQuery.sibling = function(n, elem){
|
|
var r = [];
|
|
|
|
for ( ; n; n = n.nextSibling ) {
|
|
if ( n.nodeType == 1 && n != elem )
|
|
r.push( n );
|
|
}
|
|
|
|
return r;
|
|
};
|
|
|
|
return;
|
|
|
|
window.Sizzle = Sizzle;
|
|
|
|
})();
|