From: John Resig Date: Tue, 10 Feb 2009 00:28:38 +0000 (+0000) Subject: Merging a bunch of changes back from Sizzle, by LosTFx. X-Git-Url: http://git.asbjorn.it/?a=commitdiff_plain;ds=inline;h=831b15b06c338096c751a90354bbd53241485b12;p=jquery.git Merging a bunch of changes back from Sizzle, by LosTFx. --- diff --git a/src/selector.js b/src/selector.js index 7c0bf40..331ad3c 100644 --- a/src/selector.js +++ b/src/selector.js @@ -249,21 +249,19 @@ var Expr = Sizzle.selectors = { } }, relative: { - "+": function(checkSet, part){ - for ( var i = 0, l = checkSet.length; i < l; i++ ) { - var elem = checkSet[i]; - if ( elem ) { - var cur = elem.previousSibling; - while ( cur && cur.nodeType !== 1 ) { - cur = cur.previousSibling; - } - checkSet[i] = typeof part === "string" ? - cur || false : - cur === part; + "+": function(checkSet, part, isXML){ + var isPartStr = typeof part === "string", + isTag = isPartStr && !/\W/.test(part), + isPartStrNotTag = isPartStr && !isTag; + if ( isTag && !isXML ) part = part.toUpperCase(); + for ( var i = 0, l = checkSet.length, elem; i < l; i++ ) { + if ( elem = checkSet[i] ) { + while ( (elem = elem.previousSibling) && elem.nodeType !== 1 ) {}; + checkSet[i] = isPartStrNotTag || elem && elem.nodeName === part ? + elem : elem === part; } } - - if ( typeof part === "string" ) { + if (isPartStrNotTag) { Sizzle.filter( part, checkSet, true ); } }, @@ -294,7 +292,7 @@ var Expr = Sizzle.selectors = { } }, "": function(checkSet, part, isXML){ - var doneName = "done" + (done++), checkFn = dirCheck; + var doneName = done++, checkFn = dirCheck; if ( !part.match(/\W/) ) { var nodeCheck = part = isXML ? part : part.toUpperCase(); @@ -304,7 +302,7 @@ var Expr = Sizzle.selectors = { checkFn("parentNode", part, doneName, checkSet, nodeCheck, isXML); }, "~": function(checkSet, part, isXML){ - var doneName = "done" + (done++), checkFn = dirCheck; + var doneName = done++, checkFn = dirCheck; if ( typeof part === "string" && !part.match(/\W/) ) { var nodeCheck = part = isXML ? part : part.toUpperCase(); @@ -334,10 +332,9 @@ var Expr = Sizzle.selectors = { CLASS: function(match, curLoop, inplace, result, not){ match = " " + match[1].replace(/\\/g, "") + " "; - var elem; - for ( var i = 0; (elem = curLoop[i]) != null; i++ ) { + for ( var i = 0, elem; (elem = curLoop[i]) != null; i++ ) { if ( elem ) { - if ( not ^ (" " + elem.className + " ").indexOf(match) >= 0 ) { + if ( not ^ (elem.className && (" " + elem.className + " ").indexOf(match) >= 0) ) { if ( !inplace ) result.push( elem ); } else if ( inplace ) { @@ -368,7 +365,7 @@ var Expr = Sizzle.selectors = { } // TODO: Move to normal caching system - match[0] = "done" + (done++); + match[0] = done++; return match; }, @@ -495,44 +492,46 @@ var Expr = Sizzle.selectors = { }, filter: { CHILD: function(elem, match){ - var type = match[1], parent = elem.parentNode; - - var doneName = match[0]; - - if ( parent && (!parent[ doneName ] || !elem.nodeIndex) ) { - var count = 1; - - for ( var node = parent.firstChild; node; node = node.nextSibling ) { - if ( node.nodeType == 1 ) { - node.nodeIndex = count++; + var type = match[1], node = elem; + switch (type) { + case 'only': + case 'first': + while (node = node.previousSibling) { + if ( node.nodeType === 1 ) return false; + } + if ( type == 'first') return true; + node = elem; + case 'last': + while (node = node.nextSibling) { + if ( node.nodeType === 1 ) return false; } - } - - parent[ doneName ] = count - 1; - } - - if ( type == "first" ) { - return elem.nodeIndex == 1; - } else if ( type == "last" ) { - return elem.nodeIndex == parent[ doneName ]; - } else if ( type == "only" ) { - return parent[ doneName ] == 1; - } else if ( type == "nth" ) { - var add = false, first = match[2], last = match[3]; - - if ( first == 1 && last == 0 ) { return true; - } + case 'nth': + var first = match[2], last = match[3]; - if ( first == 0 ) { - if ( elem.nodeIndex == last ) { - add = true; + if ( first == 1 && last == 0 ) { + return true; + } + + var doneName = match[0], + parent = elem.parentNode; + + if ( parent && (parent.sizcache !== doneName || !elem.nodeIndex) ) { + var count = 0; + for ( node = parent.firstChild; node; node = node.nextSibling ) { + if ( node.nodeType === 1 ) { + node.nodeIndex = ++count; + } + } + parent.sizcache = doneName; + } + + var diff = elem.nodeIndex - last; + if ( first == 0 ) { + return diff == 0; + } else { + return ( diff % first == 0 && diff / first >= 0 ); } - } else if ( (elem.nodeIndex - last) % first == 0 && (elem.nodeIndex - last) / first >= 0 ) { - add = true; - } - - return add; } }, PSEUDO: function(elem, match, i, array){ @@ -771,21 +770,27 @@ if ( document.getElementsByClassName && document.documentElement.getElementsByCl })(); function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) { + var sibDir = dir == "previousSibling" && !isXML; for ( var i = 0, l = checkSet.length; i < l; i++ ) { var elem = checkSet[i]; if ( elem ) { + if ( sibDir && elem.nodeType === 1 ){ + elem.sizcache = doneName; + elem.sizset = i; + } elem = elem[dir]; var match = false; - while ( elem && elem.nodeType ) { - var done = elem[doneName]; - if ( done ) { - match = checkSet[ done ]; + while ( elem ) { + if ( elem.sizcache === doneName ) { + match = checkSet[elem.sizset]; break; } - if ( elem.nodeType === 1 && !isXML ) - elem[doneName] = i; + if ( elem.nodeType === 1 && !isXML ){ + elem.sizcache = doneName; + elem.sizset = i; + } if ( elem.nodeName === cur ) { match = elem; @@ -801,22 +806,28 @@ function dirNodeCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) { } function dirCheck( dir, cur, doneName, checkSet, nodeCheck, isXML ) { + var sibDir = dir == "previousSibling" && !isXML; for ( var i = 0, l = checkSet.length; i < l; i++ ) { var elem = checkSet[i]; if ( elem ) { + if ( sibDir && elem.nodeType === 1 ) { + elem.sizcache = doneName; + elem.sizset = i; + } elem = elem[dir]; var match = false; - while ( elem && elem.nodeType ) { - if ( elem[doneName] ) { - match = checkSet[ elem[doneName] ]; + while ( elem ) { + if ( elem.sizcache === doneName ) { + match = checkSet[elem.sizset]; break; } if ( elem.nodeType === 1 ) { - if ( !isXML ) - elem[doneName] = i; - + if ( !isXML ) { + elem.sizcache = doneName; + elem.sizset = i; + } if ( typeof cur !== "string" ) { if ( elem === cur ) { match = true;