X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fcore.js;h=ed1f7d5b18092e0d1425baea5b4c083af8b14ab0;hb=67d445a703491c90a7d3c46be34bcdceb4d1c896;hp=78f48d71b66e1f843fdbfdb1303c0019b8757040;hpb=c6b9654ea8524e76f49f17f1bb0f6a38ce36bca3;p=jquery.git

diff --git a/src/core.js b/src/core.js
index 78f48d7..ed1f7d5 100644
--- a/src/core.js
+++ b/src/core.js
@@ -12,40 +12,50 @@ var jQuery = function( selector, context ) {
 	// Map over the $ in case of overwrite
 	_$ = window.$,
 
+	// Use the correct document accordingly with window argument (sandbox)
+	document = window.document,
+
 	// A central reference to the root jQuery(document)
 	rootjQuery,
 
 	// A simple way to check for HTML strings or ID strings
 	// (both of which we optimize for)
-	quickExpr = /^[^<]*(<(.|\s)+>)[^>]*$|^#([\w-]+)$/,
+	quickExpr = /^[^<]*(<[\w\W]+>)[^>]*$|^#([\w-]+)$/,
 
 	// Is it a simple selector
 	isSimple = /^.[^:#\[\.,]*$/,
 
+	// Check if a string has a non-whitespace character in it
+	rnotwhite = /\S/,
+
+	// Used for trimming whitespace
+	rtrim = /^\s+|\s+$/g,
+
+	// Match a standalone tag
+	rsingleTag = /^<(\w+)\s*\/?>$/,
+
 	// Keep a UserAgent string for use with jQuery.browser
 	userAgent = navigator.userAgent.toLowerCase(),
 
-	// Save a reference to the core toString method
-	toString = Object.prototype.toString;
-
-// Expose jQuery to the global object
-window.jQuery = window.$ = jQuery;
+	// Save a reference to some core methods
+	toString = Object.prototype.toString,
+	push = Array.prototype.push,
+	slice = Array.prototype.slice,
+	indexOf = Array.prototype.indexOf;
 
 jQuery.fn = jQuery.prototype = {
 	init: function( selector, context ) {
-		var match, elem, ret;
+		var match, elem, ret, doc;
 
 		// Handle $(""), $(null), or $(undefined)
 		if ( !selector ) {
-			this.length = 0;
 			return this;
 		}
 
 		// Handle $(DOMElement)
 		if ( selector.nodeType ) {
-			this[0] = selector;
-			this.length = 1;
-			this.context = selector;
+			this.context = this[0] = selector;
+			this.length++;
 			return this;
 		}
 
@@ -59,25 +69,47 @@ jQuery.fn = jQuery.prototype = {
 
 				// HANDLE: $(html) -> $(array)
 				if ( match[1] ) {
-					selector = jQuery.clean( [ match[1] ], context );
+					doc = (context ? context.ownerDocument || context : document);
+
+					// If a single string is passed in and it's a single tag
+					// just do a createElement and skip the rest
+					ret = rsingleTag.exec( selector );
+
+					if ( ret ) {
+						selector = [ doc.createElement( ret[1] ) ];
+
+					} else {
+						ret = buildFragment( [ match[1] ], [ doc ] );
+						selector = (ret.cacheable ? ret.fragment.cloneNode(true) : ret.fragment).childNodes;
+					}
 
 				// HANDLE: $("#id")
 				} else {
-					elem = document.getElementById( match[3] );
-
-					// Handle the case where IE and Opera return items
-					// by name instead of ID
-					if ( elem && elem.id !== match[3] ) {
-						return rootjQuery.find( selector );
+					elem = document.getElementById( match[2] );
+
+					if ( elem ) {
+						// Handle the case where IE and Opera return items
+						// by name instead of ID
+						if ( elem.id !== match[2] ) {
+							return rootjQuery.find( selector );
+						}
+
+						// Otherwise, we inject the element directly into the jQuery object
+						this.length++;
+						this[0] = elem;
 					}
 
-					// Otherwise, we inject the element directly into the jQuery object
-					ret = jQuery( elem || null );
-					ret.context = document;
-					ret.selector = selector;
-					return ret;
+					this.context = document;
+					this.selector = selector;
+					return this;
 				}
 
+			// HANDLE: $("TAG")
+			} else if ( !context && /^\w+$/.test( selector ) ) {
+				this.selector = selector;
+				this.context = document;
+				selector = document.getElementsByTagName( selector );
+
 			// HANDLE: $(expr, $(...))
 			} else if ( !context || context.jquery ) {
 				return (context || rootjQuery).find( selector );
@@ -94,8 +126,7 @@ jQuery.fn = jQuery.prototype = {
 			return rootjQuery.ready( selector );
 		}
 
-		// Make sure that old selector state is passed along
-		if ( selector.selector && selector.context ) {
+		if (selector.selector !== undefined) {
 			this.selector = selector.selector;
 			this.context = selector.context;
 		}
@@ -111,21 +142,28 @@ jQuery.fn = jQuery.prototype = {
 	// The current version of jQuery being used
 	jquery: "@VERSION",
 
+	// The default length of a jQuery object is 0
+	length: 0,
+
 	// The number of elements contained in the matched element set
 	size: function() {
 		return this.length;
 	},
 
+	toArray: function(){
+		return slice.call( this, 0 );
+	},
+
 	// Get the Nth element in the matched element set OR
 	// Get the whole matched element set as a clean array
 	get: function( num ) {
 		return num == null ?
 
 			// Return a 'clean' array
-			Array.prototype.slice.call( this ) :
+			this.toArray() :
 
 			// Return just the object
-			this[ num ];
+			( num < 0 ? this.slice(num)[ 0 ] : this[ num ] );
 	},
 
 	// Take an array of elements and push it onto the stack
@@ -156,7 +194,7 @@ jQuery.fn = jQuery.prototype = {
 		// Resetting the length to 0, then using the native Array push
 		// is a super-fast way to populate an object with array-like properties
 		this.length = 0;
-		Array.prototype.push.apply( this, elems );
+		push.apply( this, elems );
 
 		return this;
 	},
@@ -189,7 +227,7 @@ jQuery.fn = jQuery.prototype = {
 
 	// For internal use only.
 	// Behaves like an Array's method, not like a jQuery method.
-	push: [].push,
+	push: push,
 	sort: [].sort,
 	splice: [].splice
 };
@@ -235,9 +273,20 @@ jQuery.extend = jQuery.fn.extend = function() {
 
 				// Recurse if we're merging object values
 				if ( deep && copy && typeof copy === "object" && !copy.nodeType ) {
-					target[ name ] = jQuery.extend( deep,
-						// Never move original objects, clone them
-						src || ( copy.length != null ? [ ] : { } ), copy );
+					var clone;
+
+					if ( src ) {
+						clone = src;
+					} else if ( jQuery.isArray(copy) ) {
+						clone = [];
+					} else if ( jQuery.isObject(copy) ) {
+						clone = {};
+					} else {
+						clone = copy;
+					}
+
+					// Never move original objects, clone them
+					target[ name ] = jQuery.extend( deep, clone, copy );
 
 				// Don't bring in undefined values
 				} else if ( copy !== undefined ) {
@@ -273,21 +322,35 @@ jQuery.extend({
 		return toString.call(obj) === "[object Array]";
 	},
 
+	isObject: function( obj ) {
+		return this.constructor.call(obj) === Object;
+	},
+
+	isEmptyObject: function( obj ) {
+		for ( var name in obj ) {
+			return false;
+		}
+		return true;
+	},
+
 	// check if an element is in a (or is an) XML document
 	isXMLDoc: function( elem ) {
-		return elem.nodeType === 9 && elem.documentElement.nodeName !== "HTML" ||
-			!!elem.ownerDocument && elem.ownerDocument.documentElement.nodeName !== "HTML";
+		// documentElement is verified for cases where it doesn't yet exist
+		// (such as loading iframes in IE - #4833)
+		var documentElement = (elem ? elem.ownerDocument || elem : 0).documentElement;
+		return documentElement ? documentElement.nodeName !== "HTML" : false;
 	},
 
 	// Evalulates a script in a global context
 	globalEval: function( data ) {
-		if ( data && /\S/.test(data) ) {
+		if ( data && rnotwhite.test(data) ) {
 			// Inspired by code by Andrea Giammarchi
 			// http://webreflection.blogspot.com/2007/08/global-scope-evaluation-and-dom.html
 			var head = document.getElementsByTagName("head")[0] || document.documentElement,
 				script = document.createElement("script");
 
 			script.type = "text/javascript";
+
 			if ( jQuery.support.scriptEval ) {
 				script.appendChild( document.createTextNode( data ) );
 			} else {
@@ -307,7 +370,7 @@ jQuery.extend({
 
 	// args is for internal usage only
 	each: function( object, callback, args ) {
-		var name, i = 0, 
+		var name, i = 0,
 			length = object.length,
 			isObj = length === undefined || jQuery.isFunction(object);
 
@@ -344,7 +407,7 @@ jQuery.extend({
 	},
 
 	trim: function( text ) {
-		return (text || "").replace( /^\s+|\s+$/g, "" );
+		return (text || "").replace( rtrim, "" );
 	},
 
 	makeArray: function( array ) {
@@ -399,25 +462,6 @@ jQuery.extend({
 		return first;
 	},
 
-	unique: function( array ) {
-		var ret = [], done = {}, id;
-
-		try {
-			for ( var i = 0, length = array.length; i < length; i++ ) {
-				id = jQuery.data( array[ i ] );
-
-				if ( !done[ id ] ) {
-					done[ id ] = true;
-					ret.push( array[ i ] );
-				}
-			}
-		} catch( e ) {
-			ret = array;
-		}
-
-		return ret;
-	},
-
 	grep: function( elems, callback, inv ) {
 		var ret = [];
 
@@ -452,7 +496,7 @@ jQuery.extend({
 	// It's included for backwards compatibility and plugins,
 	// although they should work to migrate away.
 	browser: {
-		version: (userAgent.match( /.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/ ) || [0,'0'])[1],
+		version: (/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/.exec(userAgent) || [0,'0'])[1],
 		safari: /webkit/.test( userAgent ),
 		opera: /opera/.test( userAgent ),
 		msie: /msie/.test( userAgent ) && !/opera/.test( userAgent ),
@@ -460,6 +504,12 @@ jQuery.extend({
 	}
 });
 
+if ( indexOf ) {
+	jQuery.inArray = function( elem, array ) {
+		return indexOf.call( array, elem );
+	};
+}
+
 // All jQuery objects should point back to these
 rootjQuery = jQuery(document);
 
@@ -479,6 +529,36 @@ function evalScript( i, elem ) {
 	}
 }
 
+// Mutifunctional method to get and set values to a collection
+// The value/s can be optionally by executed if its a function
+function access( elems, key, value, exec, fn ) {
+	var l = elems.length;
+	
+	// Setting many attributes
+	if ( typeof key === "object" ) {
+			for (var k in key) {
+				access(elems, k, key[k], exec, fn);
+			}
+		return elems;
+	}
+	
+	// Setting one attribute
+	if (value !== undefined) {
+		// Optionally, function values get executed if exec is true
+		exec = exec && jQuery.isFunction(value);
+		
+		for (var i = 0; i < l; i++) {
+			var elem = elems[i],
+				val = exec ? value.call(elem, i) : value;
+			fn(elem, key, val);
+		}
+		return elems;
+	}
+	
+	// Getting an attribute
+	return l ? fn(elems[0], key) : null;
+}
+
 function now() {
 	return (new Date).getTime();
 }