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