X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fcore.js;h=0211808c5b79b054fd3662fac70f2bb66741cb8f;hb=6fb9759a75bf2b9a2aa3a8fce9cd7afc011d8c4f;hp=efb168306de86316036a563437e6eba5079c0091;hpb=23d455b4469f2b47363c21867aad271d6930f112;p=jquery.git

diff --git a/src/core.js b/src/core.js
index efb1683..0211808 100644
--- a/src/core.js
+++ b/src/core.js
@@ -75,10 +75,7 @@ var jQuery = function( selector, context ) {
 	indexOf = Array.prototype.indexOf,
 
 	// [[Class]] -> type pairs
-	class2type = {},
-	
-	// Marker for deferred
-	deferredMarker = [];
+	class2type = {};
 
 jQuery.fn = jQuery.prototype = {
 	init: function( selector, context ) {
@@ -874,7 +871,7 @@ jQuery.extend({
 				
 				// resolve with this as context and given arguments
 				resolve: function() {
-					deferred.fire( this , arguments );
+					deferred.fire( jQuery.isFunction( this.promise ) ? this.promise() : this , arguments );
 					return this;
 				},
 				
@@ -888,17 +885,9 @@ jQuery.extend({
 					cancelled = 1;
 					callbacks = [];
 					return this;
-				},
-				
-				// Has this deferred been cancelled?
-				isCancelled: function() {
-					return !!cancelled;
 				}
 			};
 		
-		// Add the deferred marker
-		deferred.then._ = deferredMarker;
-		
 		return deferred;
 	},
 	
@@ -906,26 +895,36 @@ jQuery.extend({
 	// Typical success/error system
 	Deferred: function( func ) {
 		
-		var errorDeferred = jQuery._Deferred(),
-			deferred = jQuery._Deferred(),
-			successCancel = deferred.cancel;
+		var deferred = jQuery._Deferred(),
+			failDeferred = jQuery._Deferred();
 			
 		// Add errorDeferred methods and redefine cancel			
 		jQuery.extend( deferred , {
 
-				fail: errorDeferred.then,
-				fireReject: errorDeferred.fire,
-				reject: errorDeferred.resolve,
-				isRejected: errorDeferred.isResolved
+				fail: failDeferred.then,
+				fireReject: failDeferred.fire,
+				reject: failDeferred.resolve,
+				isRejected: failDeferred.isResolved,
+				// Get a promise for this deferred
+				// If obj is provided, the promise aspect is added to the object
+				promise: function( obj ) {
+					obj = obj || {};
+					jQuery.each( "then fail isResolved isRejected".split( " " ) , function( _ , method ) {
+						obj[ method ] = deferred[ method ];
+					});
+					obj.promise = function() {
+						return obj;
+					};
+					return obj;
+				}
 
 		} );
 		
-		// Remove cancel related
-		delete deferred.cancel;
-		delete deferred.isCancelled;
-		
 		// Make sure only one callback list will be used
-		deferred.then( errorDeferred.cancel ).fail( successCancel );
+		deferred.then( failDeferred.cancel ).fail( deferred.cancel );
+		
+		// Unexpose cancel
+		delete deferred.cancel;
 		
 		// Call given func if any
 		if ( func ) {
@@ -935,22 +934,12 @@ jQuery.extend({
 		return deferred;
 	},
 
-	// Check if an object is a deferred
-	isDeferred: function( object , method ) {
-		method = method || "then";
-		return !!( object && object[ method ] && object[ method ]._ === deferredMarker );
-	},
-	
 	// Deferred helper
-	when: function( object , method ) {
-		method = method || "then";
-		object = jQuery.isDeferred( object , method ) ?
+	when: function( object ) {
+		object = object && jQuery.isFunction( object.promise ) ?
 			object :
 			jQuery.Deferred().resolve( object );
-		object.fail = object.fail || function() { return this; };
-		object[ method ] = object[ method ] || object.then;
-		object.then = object.then || object[ method ];
-		return object;
+		return object.promise();
 	},
 
 	// Use of jQuery.browser is frowned upon.
@@ -971,9 +960,7 @@ jQuery.extend({
 });
 
 // Create readyList deferred
-// also force $.fn.ready to be recognized as a defer
 readyList = jQuery._Deferred();
-jQuery.fn.ready._ = deferredMarker;
 
 // Populate the class2type map
 jQuery.each("Boolean Number String Function Array Date RegExp Object".split(" "), function(i, name) {