X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fcore.js;h=511180a08a58bcedfc58087978f1ae3b1ecb7b00;hb=c5f4d70e2ba039759ab6d889893d4feb1cca3c52;hp=8743f05c49e54dc50ce3be0e965a58d83e32e8a3;hpb=28182b43209b0e62b9ca2192671fc26644953717;p=jquery.git

diff --git a/src/core.js b/src/core.js
index 8743f05..511180a 100644
--- a/src/core.js
+++ b/src/core.js
@@ -579,8 +579,11 @@ jQuery.extend = jQuery.fn.extend = function() {
 					continue;
 
 				// Recurse if we're merging object values
-				if ( deep && copy && typeof copy == "object" && src && !copy.nodeType )
-					target[ name ] = jQuery.extend( deep, src, copy );
+				if ( deep && copy && typeof copy == "object" && !copy.nodeType )
+					target[ name ] = jQuery.extend( deep, 
+						// Never move original objects, clone them
+						src || ( copy.length != null ? [ ] : { } )
+					, copy );
 
 				// Don't bring in undefined values
 				else if ( copy !== undefined )
@@ -593,11 +596,10 @@ jQuery.extend = jQuery.fn.extend = function() {
 };
 
 var expando = "jQuery" + now(), uuid = 0, windowData = {},
-
-// exclude the following css properties to add px
+	// exclude the following css properties to add px
 	exclude = /z-?index|font-?weight|opacity|zoom|line-?height/i,
-// cache getComputedStyle
-	getComputedStyle = document.defaultView && document.defaultView.getComputedStyle;
+	// cache defaultView
+	defaultView = document.defaultView || {};
 
 jQuery.extend({
 	noConflict: function( deep ) {
@@ -612,7 +614,7 @@ jQuery.extend({
 	// See test/unit/core.js for details concerning this function.
 	isFunction: function( fn ) {
 		return !!fn && typeof fn != "string" && !fn.nodeName &&
-			fn.constructor != Array && /function/i.test( fn + "" );
+			fn.constructor != Array && /^[\s[]?function/.test( fn + "" );
 	},
 
 	// check if an element is in a (or is an) XML document
@@ -827,8 +829,8 @@ jQuery.extend({
 			if ( !jQuery.browser.safari )
 				return false;
 
-			// getComputedStyle is cached
-			var ret = getComputedStyle( elem, null );
+			// defaultView is cached
+			var ret = defaultView.getComputedStyle( elem, null );
 			return !ret || ret.getPropertyValue("color") == "";
 		}
 
@@ -854,7 +856,7 @@ jQuery.extend({
 		if ( !force && style && style[ name ] )
 			ret = style[ name ];
 
-		else if ( getComputedStyle ) {
+		else if ( defaultView.getComputedStyle ) {
 
 			// Only "float" is needed here
 			if ( name.match( /float/i ) )
@@ -862,7 +864,7 @@ jQuery.extend({
 
 			name = name.replace( /([A-Z])/g, "-$1" ).toLowerCase();
 
-			var computedStyle = getComputedStyle( elem, null );
+			var computedStyle = defaultView.getComputedStyle( elem, null );
 
 			if ( computedStyle && !color( elem ) )
 				ret = computedStyle.getPropertyValue( name );
@@ -1356,3 +1358,8 @@ jQuery.each([ "Height", "Width" ], function(i, name){
 					this.css( type, size.constructor == String ? size : size + "px" );
 	};
 });
+
+// Helper function used by the dimensions and offset modules
+function num(elem, prop) {
+	return elem[0] && parseInt( jQuery.curCSS(elem[0], prop, true), 10 ) || 0;
+}
\ No newline at end of file