Dialog: Removed broken disabled option from dialog, defuse disable/en…

…able methods. Disabling dialogs is not supported.

tests/unit/dialog/dialog_methods.js

@@ -47,32 +47,12 @@ test("destroy", function() {
 	});
 });
 
-test("enable", function() {
-	expect( 3 );
-
-	var el,
-		expected = $('<div></div>').dialog(),
-		actual = expected.dialog('enable');
-	equal(actual, expected, 'enable is chainable');
-
-	el = $('<div></div>').dialog({ disabled: true });
-	el.dialog('enable');
-	equal(el.dialog('option', 'disabled'), false, 'enable method sets disabled option to false');
-	ok(!el.dialog('widget').hasClass('ui-dialog-disabled'), 'enable method removes ui-dialog-disabled class from ui-dialog element');
-});
-
-test("disable", function() {
-	expect( 3 );
-
-	var el,
-		expected = $('<div></div>').dialog(),
-		actual = expected.dialog('disable');
-	equal(actual, expected, 'disable is chainable');
-
-	el = $('<div></div>').dialog({ disabled: false });
-	el.dialog('disable');
-	equal(el.dialog('option', 'disabled'), true, 'disable method sets disabled option to true');
-	ok(el.dialog('widget').hasClass('ui-dialog-disabled'), 'disable method adds ui-dialog-disabled class to ui-dialog element');
+test( "enable/disable disabled", function() {
+	expect( 2 );
+	var el = $( "<div></div>" ).dialog();
+	el.dialog( "disable" );
+	equal(el.dialog( "option", "disabled" ), false, "disable method doesn't do anything" );
+	ok( !el.dialog( "widget" ).hasClass( "ui-dialog-disabled" ), "disable method doesn't add ui-dialog-disabled class" );
 });
 
 test("close", function() {

ui/jquery.ui.dialog.js

@@ -152,6 +152,9 @@ $.widget("ui.dialog", {
 		return this.uiDialog;
 	},
 
+	disable: $.noop,
+	enable: $.noop,
+
 	close: function( event ) {
 		var that = this;
 
@@ -578,6 +581,10 @@ $.widget("ui.dialog", {
 				.addClass( value );
 		}
 
+		if ( key === "disabled" ) {
+			return;
+		}
+
 		this._super( key, value );
 
 		if ( key === "buttons" ) {