Widget: Allow redefining a widget after other widgets have inherited from it.

Author: scottgonzalez

tests/unit/tabs/tabs_deprecated.js

@@ -281,7 +281,7 @@ test( "enable", function() {
 
 	var element = $( "#tabs1" ).tabs({
 		disabled: [ 0, 1 ],
-		enable: function ( event, ui ) {
+		enable: function( event, ui ) {
 			equals( ui.tab, element.find( ".ui-tabs-nav a" )[ 1 ], "ui.tab" );
 			equals( ui.panel, element.find( ".ui-tabs-panel" )[ 1 ], "ui.panel" );
 			equals( ui.index, 1, "ui.index" );
@@ -296,10 +296,10 @@ test( "disable", function() {
 	expect( 3 );
 
 	var element = $( "#tabs1" ).tabs({
-		disable: function ( event, ui ) {
-		equals( ui.tab, element.find( ".ui-tabs-nav a" )[ 1 ], "ui.tab" );
-		equals( ui.panel, element.find( ".ui-tabs-panel" )[ 1 ], "ui.panel" );
-		equals( ui.index, 1, "ui.index" );
+		disable: function( event, ui ) {
+			equals( ui.tab, element.find( ".ui-tabs-nav a" )[ 1 ], "ui.tab" );
+			equals( ui.panel, element.find( ".ui-tabs-panel" )[ 1 ], "ui.panel" );
+			equals( ui.index, 1, "ui.index" );
 		}
 	});
 	element.tabs( "disable", 1 );

tests/unit/widget/widget_core.js

@@ -1050,11 +1050,54 @@ test( "redefine", function() {
 		}
 	});
 
-	var instance = new $.ui.testWidget();
+	var instance = new $.ui.testWidget({});
 	instance.method( "foo" );
 	equal( $.ui.testWidget.foo, "bar", "static properties remain" );
 });
 
+test( "redefine deep prototype chain", function() {
+	expect( 8 );
+	$.widget( "ui.testWidget", {
+		method: function( str ) {
+			strictEqual( this, instance, "original invoked with correct this" );
+			equal( str, "level 4", "original invoked with correct parameter" );
+		}
+	});
+	$.widget( "ui.testWidget2", $.ui.testWidget, {
+		method: function( str ) {
+			strictEqual( this, instance, "testWidget2 invoked with correct this" );
+			equal( str, "level 2", "testWidget2 invoked with correct parameter" );
+			this._super( "level 3" );
+		}
+	});
+	$.widget( "ui.testWidget3", $.ui.testWidget2, {
+		method: function( str ) {
+			strictEqual( this, instance, "testWidget3 invoked with correct this" );
+			equal( str, "level 1", "testWidget3 invoked with correct parameter" );
+			this._super( "level 2" );
+		}
+	});
+	// redefine testWidget after other widgets have inherited from it
+	// this tests whether the inheriting widgets get updated prototype chains
+	$.widget( "ui.testWidget", $.ui.testWidget, {
+		method: function( str ) {
+			strictEqual( this, instance, "new invoked with correct this" );
+			equal( str, "level 3", "new invoked with correct parameter" );
+			this._super( "level 4" );
+		}
+	});
+	// redefine testWidget3 after it has been automatically redefined
+	// this tests whether we properly handle _super() when the topmost prototype
+	// doesn't have the method defined
+	$.widget( "ui.testWidget3", $.ui.testWidget3, {} );
+
+	var instance = new $.ui.testWidget3({});
+	instance.method( "level 1" );
+
+	delete $.ui.testWidget3;
+	delete $.ui.testWidget2;
+});
+
 asyncTest( "_delay", function() {
 	expect( 6 );
 	var order = 0,