| // Copyright 2007 The Closure Library Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS-IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| /** |
| * @fileoverview A class for representing menu headers. |
| * @see goog.ui.Menu |
| * |
| */ |
| |
| goog.provide('goog.ui.MenuHeader'); |
| |
| goog.require('goog.ui.Component'); |
| goog.require('goog.ui.Control'); |
| goog.require('goog.ui.MenuHeaderRenderer'); |
| goog.require('goog.ui.registry'); |
| |
| |
| |
| /** |
| * Class representing a menu header. |
| * @param {goog.ui.ControlContent} content Text caption or DOM structure to |
| * display as the content of the item (use to add icons or styling to |
| * menus). |
| * @param {goog.dom.DomHelper=} opt_domHelper Optional DOM helper used for |
| * document interactions. |
| * @param {goog.ui.MenuHeaderRenderer=} opt_renderer Optional renderer. |
| * @constructor |
| * @extends {goog.ui.Control} |
| */ |
| goog.ui.MenuHeader = function(content, opt_domHelper, opt_renderer) { |
| goog.ui.Control.call(this, content, opt_renderer || |
| goog.ui.MenuHeaderRenderer.getInstance(), opt_domHelper); |
| |
| this.setSupportedState(goog.ui.Component.State.DISABLED, false); |
| this.setSupportedState(goog.ui.Component.State.HOVER, false); |
| this.setSupportedState(goog.ui.Component.State.ACTIVE, false); |
| this.setSupportedState(goog.ui.Component.State.FOCUSED, false); |
| |
| // Headers are always considered disabled. |
| this.setStateInternal(goog.ui.Component.State.DISABLED); |
| }; |
| goog.inherits(goog.ui.MenuHeader, goog.ui.Control); |
| |
| |
| // Register a decorator factory function for goog.ui.MenuHeaders. |
| goog.ui.registry.setDecoratorByClassName( |
| goog.ui.MenuHeaderRenderer.CSS_CLASS, |
| function() { |
| // MenuHeader defaults to using MenuHeaderRenderer. |
| return new goog.ui.MenuHeader(null); |
| }); |