X-Git-Url: http://git.asbjorn.biz/?p=jquery.git;a=blobdiff_plain;f=src%2Ftraversing.js;h=90601df55cddfeb8d2e535674f132d1f0d8b787a;hp=57621a3906419e511e5bf415f9979324321333d9;hb=9d306bd73bb47562cd52f0fc4cc158c534cfdfdf;hpb=39a77c2d02d379d15bfe9c2e7b90c92d9cb3a34e

diff --git a/src/traversing.js b/src/traversing.js
index 57621a3..90601df 100644
--- a/src/traversing.js
+++ b/src/traversing.js
@@ -1,41 +1,24 @@
+(function( jQuery ) {
+
 var runtil = /Until$/,
 	rparentsprev = /^(?:parents|prevUntil|prevAll)/,
 	// Note: This RegExp should be improved, or likely pulled from Sizzle
 	rmultiselector = /,/,
-	slice = Array.prototype.slice;
-
-// Implement the identical functionality for filter and not
-var winnow = function( elements, qualifier, keep ) {
-	if ( jQuery.isFunction( qualifier ) ) {
-		return jQuery.grep(elements, function(elem, i) {
-			return !!qualifier.call( elem, i ) === keep;
-		});
-
-	} else if ( qualifier.nodeType ) {
-		return jQuery.grep(elements, function(elem, i) {
-			return (elem === qualifier) === keep;
-		});
-
-	} else if ( typeof qualifier === "string" ) {
-		var filtered = jQuery.grep(elements, function(elem) {
-			return elem.nodeType === 1;
-		});
-
-		if ( isSimple.test( qualifier ) ) {
-			return jQuery.filter(qualifier, filtered, !keep);
-		} else {
-			qualifier = jQuery.filter( qualifier, elements );
-		}
-	}
-
-	return jQuery.grep(elements, function(elem, i) {
-		return (jQuery.inArray( elem, qualifier ) >= 0) === keep;
-	});
-};
+	isSimple = /^.[^:#\[\.,]*$/,
+	slice = Array.prototype.slice,
+	POS = jQuery.expr.match.POS,
+	// methods guaranteed to produce a unique set when starting from a unique set
+	guaranteedUnique = {
+		children: true,
+		contents: true,
+		next: true,
+		prev: true
+	};
 
 jQuery.fn.extend({
 	find: function( selector ) {
-		var ret = this.pushStack( "", "find", selector ), length = 0;
+		var ret = this.pushStack( "", "find", selector ),
+			length = 0;
 
 		for ( var i = 0, l = this.length; i < l; i++ ) {
 			length = ret.length;
@@ -57,6 +40,17 @@ jQuery.fn.extend({
 		return ret;
 	},
 
+	has: function( target ) {
+		var targets = jQuery( target );
+		return this.filter(function() {
+			for ( var i = 0, l = targets.length; i < l; i++ ) {
+				if ( jQuery.contains( this, targets[i] ) ) {
+					return true;
+				}
+			}
+		});
+	},
+
 	not: function( selector ) {
 		return this.pushStack( winnow(this, selector, false), "not", selector);
 	},
@@ -65,16 +59,24 @@ jQuery.fn.extend({
 		return this.pushStack( winnow(this, selector, true), "filter", selector );
 	},
 
+	is: function( selector ) {
+		return !!selector && jQuery.filter( selector, this ).length > 0;
+	},
+
 	closest: function( selectors, context ) {
+		var ret = [], i, l, cur = this[0];
+
 		if ( jQuery.isArray( selectors ) ) {
-			var ret = [], cur = this[0], match, matches = {}, selector;
+			var match, selector,
+				matches = {},
+				level = 1;
 
 			if ( cur && selectors.length ) {
-				for ( var i = 0, l = selectors.length; i < l; i++ ) {
+				for ( i = 0, l = selectors.length; i < l; i++ ) {
 					selector = selectors[i];
 
 					if ( !matches[selector] ) {
-						matches[selector] = jQuery.expr.match.POS.test( selector ) ? 
+						matches[selector] = jQuery.expr.match.POS.test( selector ) ?
 							jQuery( selector, context || this.context ) :
 							selector;
 					}
@@ -85,93 +87,129 @@ jQuery.fn.extend({
 						match = matches[selector];
 
 						if ( match.jquery ? match.index(cur) > -1 : jQuery(cur).is(match) ) {
-							ret.push({ selector: selector, elem: cur });
-							delete matches[selector];
+							ret.push({ selector: selector, elem: cur, level: level });
 						}
 					}
+
 					cur = cur.parentNode;
+					level++;
 				}
 			}
 
 			return ret;
 		}
 
-		var pos = jQuery.expr.match.POS.test( selectors ) ? 
+		var pos = POS.test( selectors ) ?
 			jQuery( selectors, context || this.context ) : null;
 
-		return this.map(function(i, cur){
-			while ( cur && cur.ownerDocument && cur !== context ) {
-				if ( pos ? pos.index(cur) > -1 : jQuery(cur).is(selectors) ) {
-					return cur;
+		for ( i = 0, l = this.length; i < l; i++ ) {
+			cur = this[i];
+
+			while ( cur ) {
+				if ( pos ? pos.index(cur) > -1 : jQuery.find.matchesSelector(cur, selectors) ) {
+					ret.push( cur );
+					break;
+
+				} else {
+					cur = cur.parentNode;
+					if ( !cur || !cur.ownerDocument || cur === context ) {
+						break;
+					}
 				}
-				cur = cur.parentNode;
 			}
-			return null;
-		});
+		}
+
+		ret = ret.length > 1 ? jQuery.unique(ret) : ret;
+
+		return this.pushStack( ret, "closest", selectors );
+	},
+
+	// Determine the position of an element within
+	// the matched set of elements
+	index: function( elem ) {
+		if ( !elem || typeof elem === "string" ) {
+			return jQuery.inArray( this[0],
+				// If it receives a string, the selector is used
+				// If it receives nothing, the siblings are used
+				elem ? jQuery( elem ) : this.parent().children() );
+		}
+		// Locate the position of the desired element
+		return jQuery.inArray(
+			// If it receives a jQuery object, the first element is used
+			elem.jquery ? elem[0] : elem, this );
 	},
 
 	add: function( selector, context ) {
 		var set = typeof selector === "string" ?
-				jQuery( selector, context || this.context ) :
+				jQuery( selector, context ) :
 				jQuery.makeArray( selector ),
 			all = jQuery.merge( this.get(), set );
 
-		return this.pushStack( set[0] && (set[0].setInterval || set[0].nodeType === 9 || (set[0].parentNode && set[0].parentNode.nodeType !== 11)) ?
-			jQuery.unique( all ) :
-			all );
+		return this.pushStack( isDisconnected( set[0] ) || isDisconnected( all[0] ) ?
+			all :
+			jQuery.unique( all ) );
 	},
 
-	eq: function( i ) {
-		return i === -1 ?
-			this.slice( i ) :
-			this.slice( i, +i + 1 );
-	},
+	andSelf: function() {
+		return this.add( this.prevObject );
+	}
+});
 
-	first: function() {
-		return this.eq( 0 );
-	},
+// A painfully simple check to see if an element is disconnected
+// from a document (should be improved, where feasible).
+function isDisconnected( node ) {
+	return !node || !node.parentNode || node.parentNode.nodeType === 11;
+}
 
-	last: function() {
-		return this.eq( -1 );
+jQuery.each({
+	parent: function( elem ) {
+		var parent = elem.parentNode;
+		return parent && parent.nodeType !== 11 ? parent : null;
 	},
-
-	slice: function() {
-		return this.pushStack( slice.apply( this, arguments ),
-			"slice", slice.call(arguments).join(",") );
+	parents: function( elem ) {
+		return jQuery.dir( elem, "parentNode" );
 	},
-
-	map: function( callback ) {
-		return this.pushStack( jQuery.map(this, function(elem, i){
-			return callback.call( elem, i, elem );
-		}));
+	parentsUntil: function( elem, i, until ) {
+		return jQuery.dir( elem, "parentNode", until );
 	},
-
-	andSelf: function() {
-		return this.add( this.prevObject );
+	next: function( elem ) {
+		return jQuery.nth( elem, 2, "nextSibling" );
 	},
-
-	end: function() {
-		return this.prevObject || jQuery(null);
+	prev: function( elem ) {
+		return jQuery.nth( elem, 2, "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 jQuery.nodeName( elem, "iframe" ) ?
+			elem.contentDocument || elem.contentWindow.document :
+			jQuery.makeArray( elem.childNodes );
 	}
-});
-
-jQuery.each({
-	parent: function(elem){return elem.parentNode;},
-	parents: function(elem){return jQuery.dir(elem,"parentNode");},
-	parentsUntil: function(elem,i,until){return jQuery.dir(elem,"parentNode",until);},
-	next: function(elem){return jQuery.nth(elem,2,"nextSibling");},
-	prev: function(elem){return jQuery.nth(elem,2,"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 jQuery.nodeName(elem,"iframe")?elem.contentDocument||elem.contentWindow.document:jQuery.makeArray(elem.childNodes);}
-}, function(name, fn){
+}, function( name, fn ) {
 	jQuery.fn[ name ] = function( until, selector ) {
-		var ret = jQuery.map( this, fn, until );
-		
+		var ret = jQuery.map( this, fn, until ),
+                // The variable 'args' was introduced in
+                // https://github.com/jquery/jquery/commit/52a0238
+                // to work around a bug in Chrome 10 (Dev) and should be removed when the bug is fixed.
+                // http://code.google.com/p/v8/issues/detail?id=1050
+                    args = slice.call(arguments);
+
 		if ( !runtil.test( name ) ) {
 			selector = until;
 		}
@@ -180,13 +218,13 @@ jQuery.each({
 			ret = jQuery.filter( selector, ret );
 		}
 
-		ret = this.length > 1 ? jQuery.unique( ret ) : ret;
+		ret = this.length > 1 && !guaranteedUnique[ name ] ? jQuery.unique( ret ) : ret;
 
 		if ( (this.length > 1 || rmultiselector.test( selector )) && rparentsprev.test( name ) ) {
 			ret = ret.reverse();
 		}
 
-		return this.pushStack( ret, name, slice.call(arguments).join(",") );
+		return this.pushStack( ret, name, args.join(",") );
 	};
 });
 
@@ -196,12 +234,16 @@ jQuery.extend({
 			expr = ":not(" + expr + ")";
 		}
 
-		return jQuery.find.matches(expr, elems);
+		return elems.length === 1 ?
+			jQuery.find.matchesSelector(elems[0], expr) ? [ elems[0] ] : [] :
+			jQuery.find.matches(expr, elems);
 	},
-	
+
 	dir: function( elem, dir, until ) {
-		var matched = [], cur = elem[dir];
-		while ( cur && cur.nodeType !== 9 && (until === undefined || !jQuery( cur ).is( until )) ) {
+		var matched = [],
+			cur = elem[ dir ];
+
+		while ( cur && cur.nodeType !== 9 && (until === undefined || cur.nodeType !== 1 || !jQuery( cur ).is( until )) ) {
 			if ( cur.nodeType === 1 ) {
 				matched.push( cur );
 			}
@@ -235,3 +277,35 @@ jQuery.extend({
 		return r;
 	}
 });
+
+// Implement the identical functionality for filter and not
+function winnow( elements, qualifier, keep ) {
+	if ( jQuery.isFunction( qualifier ) ) {
+		return jQuery.grep(elements, function( elem, i ) {
+			var retVal = !!qualifier.call( elem, i, elem );
+			return retVal === keep;
+		});
+
+	} else if ( qualifier.nodeType ) {
+		return jQuery.grep(elements, function( elem, i ) {
+			return (elem === qualifier) === keep;
+		});
+
+	} else if ( typeof qualifier === "string" ) {
+		var filtered = jQuery.grep(elements, function( elem ) {
+			return elem.nodeType === 1;
+		});
+
+		if ( isSimple.test( qualifier ) ) {
+			return jQuery.filter(qualifier, filtered, !keep);
+		} else {
+			qualifier = jQuery.filter( qualifier, filtered );
+		}
+	}
+
+	return jQuery.grep(elements, function( elem, i ) {
+		return (jQuery.inArray( elem, qualifier ) >= 0) === keep;
+	});
+}
+
+})( jQuery );