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// Copyright 2008 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 Renderer for {@link goog.ui.TriStateMenuItem}s.
*
* @author eae@google.com (Emil A Eklund)
*/
goog.provide('goog.ui.TriStateMenuItemRenderer');
goog.require('goog.dom.classes');
goog.require('goog.ui.MenuItemRenderer');
/**
* Default renderer for {@link goog.ui.TriStateMenuItemRenderer}s. Each item has
* the following structure:
* <div class="goog-tristatemenuitem">
* <div class="goog-tristatemenuitem-checkbox"></div>
* <div>...(content)...</div>
* </div>
* @constructor
* @extends {goog.ui.MenuItemRenderer}
*/
goog.ui.TriStateMenuItemRenderer = function() {
goog.ui.MenuItemRenderer.call(this);
};
goog.inherits(goog.ui.TriStateMenuItemRenderer, goog.ui.MenuItemRenderer);
goog.addSingletonGetter(goog.ui.TriStateMenuItemRenderer);
/**
* CSS class name the renderer applies to menu item elements.
* @type {string}
*/
goog.ui.TriStateMenuItemRenderer.CSS_CLASS =
goog.getCssName('goog-tristatemenuitem');
/**
* Overrides {@link goog.ui.ControlRenderer#decorate} by initializing the
* menu item to checkable based on whether the element to be decorated has
* extra styling indicating that it should be.
* @param {goog.ui.Control} item goog.ui.MenuItem to decorate the element.
* @param {Element} element Element to decorate.
* @return {Element} Decorated element.
* @override
*/
goog.ui.TriStateMenuItemRenderer.prototype.decorate = function(item, element) {
element = goog.ui.TriStateMenuItemRenderer.superClass_.decorate.call(this,
item, element);
this.setSelectable(item, element, true);
if (goog.dom.classes.has(element,
goog.getCssName(this.getCssClass(), 'fully-checked'))) {
item.setCheckedState(goog.ui.TriStateMenuItem.State.FULLY_CHECKED);
} else if (goog.dom.classes.has(element,
goog.getCssName(this.getCssClass(), 'partially-checked'))) {
item.setCheckedState(goog.ui.TriStateMenuItem.State.PARTIALLY_CHECKED);
} else {
item.setCheckedState(goog.ui.TriStateMenuItem.State.NOT_CHECKED);
}
return element;
};
/** @override */
goog.ui.TriStateMenuItemRenderer.prototype.getCssClass = function() {
return goog.ui.TriStateMenuItemRenderer.CSS_CLASS;
};
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