Added support for class selectors and class attribute selectors on XML documents...

[jquery.git] / src / selector.js

diff --git a/src/selector.js b/src/selector.js
index 42e7e41..c97ba61 100644 (file)
--- a/src/selector.js
+++ b/src/selector.js
@@ -165,7 +165,8 @@ Sizzle.find = function(expr, context, isXML){
 };
 
 Sizzle.filter = function(expr, set, inplace, not){
-       var old = expr, result = [], curLoop = set, match, anyFound;
+       var old = expr, result = [], curLoop = set, match, anyFound,
+               isXMLFilter = set && set[0] && isXML(set[0]);
 
        while ( expr && set.length ) {
                for ( var type in Expr.filter ) {
@@ -178,7 +179,7 @@ Sizzle.filter = function(expr, set, inplace, not){
                                }
 
                                if ( Expr.preFilter[ type ] ) {
-                                       match = Expr.preFilter[ type ]( match, curLoop, inplace, result, not );
+                                       match = Expr.preFilter[ type ]( match, curLoop, inplace, result, not, isXMLFilter );
 
                                        if ( !match ) {
                                                anyFound = found = true;
@@ -261,23 +262,32 @@ var Expr = Sizzle.selectors = {
        },
        relative: {
                "+": function(checkSet, part, isXML){
-                       var     isPartStr = typeof part === "string",
+                       var isPartStr = typeof part === "string",
                                isTag = isPartStr && !/\W/.test(part),
                                isPartStrNotTag = isPartStr && !isTag;
-                       if ( isTag && !isXML ) part = part.toUpperCase();
+
+                       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 ) {};
+                               if ( (elem = checkSet[i]) ) {
+                                       while ( (elem = elem.previousSibling) && elem.nodeType !== 1 ) {}
+
                                        checkSet[i] = isPartStrNotTag || elem && elem.nodeName === part ?
-                                                elem : elem === part;
+                                               elem || false :
+                                               elem === part;
                                }
                        }
-                       if (isPartStrNotTag) {
+
+                       if ( isPartStrNotTag ) {
                                Sizzle.filter( part, checkSet, true );
                        }
                },
                ">": function(checkSet, part, isXML){
-                       if ( typeof part === "string" && !/\W/.test(part) ) {
+                       var isPartStr = typeof part === "string";
+
+                       if ( isPartStr && !/\W/.test(part) ) {
                                part = isXML ? part : part.toUpperCase();
 
                                for ( var i = 0, l = checkSet.length; i < l; i++ ) {
@@ -291,13 +301,13 @@ var Expr = Sizzle.selectors = {
                                for ( var i = 0, l = checkSet.length; i < l; i++ ) {
                                        var elem = checkSet[i];
                                        if ( elem ) {
-                                               checkSet[i] = typeof part === "string" ?
+                                               checkSet[i] = isPartStr ?
                                                        elem.parentNode :
                                                        elem.parentNode === part;
                                        }
                                }
 
-                               if ( typeof part === "string" ) {
+                               if ( isPartStr ) {
                                        Sizzle.filter( part, checkSet, true );
                                }
                        }
@@ -348,9 +358,13 @@ var Expr = Sizzle.selectors = {
                }
        },
        preFilter: {
-               CLASS: function(match, curLoop, inplace, result, not){
+               CLASS: function(match, curLoop, inplace, result, not, isXML){
                        match = " " + match[1].replace(/\\/g, "") + " ";
 
+                       if ( isXML ) {
+                               return match;
+                       }
+
                        for ( var i = 0, elem; (elem = curLoop[i]) != null; i++ ) {
                                if ( elem ) {
                                        if ( not ^ (elem.className && (" " + elem.className + " ").indexOf(match) >= 0) ) {
@@ -388,10 +402,10 @@ var Expr = Sizzle.selectors = {
 
                        return match;
                },
-               ATTR: function(match){
+               ATTR: function(match, curLoop, inplace, result, not, isXML){
                        var name = match[1].replace(/\\/g, "");
                        
-                       if ( Expr.attrMap[name] ) {
+                       if ( !isXML && Expr.attrMap[name] ) {
                                match[1] = Expr.attrMap[name];
                        }
 
@@ -413,7 +427,7 @@ var Expr = Sizzle.selectors = {
                                        }
                                        return false;
                                }
-                       } else if ( Expr.match.POS.test( match[0] ) ) {
+                       } else if ( Expr.match.POS.test( match[0] ) || Expr.match.CHILD.test( match[0] ) ) {
                                return true;
                        }
                        
@@ -510,6 +524,25 @@ var Expr = Sizzle.selectors = {
                }
        },
        filter: {
+               PSEUDO: function(elem, match, i, array){
+                       var name = match[1], filter = Expr.filters[ name ];
+
+                       if ( filter ) {
+                               return filter( elem, i, match, array );
+                       } else if ( name === "contains" ) {
+                               return (elem.textContent || elem.innerText || "").indexOf(match[3]) >= 0;
+                       } else if ( name === "not" ) {
+                               var not = match[3];
+
+                               for ( var i = 0, l = not.length; i < l; i++ ) {
+                                       if ( not[i] === elem ) {
+                                               return false;
+                                       }
+                               }
+
+                               return true;
+                       }
+               },
                CHILD: function(elem, match){
                        var type = match[1], node = elem;
                        switch (type) {
@@ -553,25 +586,6 @@ var Expr = Sizzle.selectors = {
                                        }
                        }
                },
-               PSEUDO: function(elem, match, i, array){
-                       var name = match[1], filter = Expr.filters[ name ];
-
-                       if ( filter ) {
-                               return filter( elem, i, match, array );
-                       } else if ( name === "contains" ) {
-                               return (elem.textContent || elem.innerText || "").indexOf(match[3]) >= 0;
-                       } else if ( name === "not" ) {
-                               var not = match[3];
-
-                               for ( var i = 0, l = not.length; i < l; i++ ) {
-                                       if ( not[i] === elem ) {
-                                               return false;
-                                       }
-                               }
-
-                               return true;
-                       }
-               },
                ID: function(elem, match){
                        return elem.nodeType === 1 && elem.getAttribute("id") === match;
                },
@@ -579,7 +593,8 @@ var Expr = Sizzle.selectors = {
                        return (match === "*" && elem.nodeType === 1) || elem.nodeName === match;
                },
                CLASS: function(elem, match){
-                       return match.test( elem.className );
+                       return (" " + (elem.className || elem.getAttribute("class")) + " ")
+                               .indexOf( match ) > -1;
                },
                ATTR: function(elem, match){
                        var name = match[1],
@@ -806,8 +821,10 @@ if ( document.getElementsByClassName && document.documentElement.getElementsByCl
                return;
 
        Expr.order.splice(1, 0, "CLASS");
-       Expr.find.CLASS = function(match, context) {
-               return context.getElementsByClassName(match[1]);
+       Expr.find.CLASS = function(match, context, isXML) {
+               if ( typeof context.getElementsByClassName !== "undefined" && !isXML ) {
+                       return context.getElementsByClassName(match[1]);
+               }
        };
 })();
 
@@ -928,15 +945,11 @@ 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";
+       return elem.offsetWidth === 0 || elem.offsetHeight === 0;
 };
 
 Sizzle.selectors.filters.visible = function(elem){
-       return "hidden" !== elem.type &&
-               jQuery.css(elem, "display") !== "none" &&
-               jQuery.css(elem, "visibility") !== "hidden";
+       return elem.offsetWidth > 0 || elem.offsetHeight > 0;
 };
 
 Sizzle.selectors.filters.animated = function(elem){