| // 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.MenuSeparator}s. |
| * |
| * @author attila@google.com (Attila Bodis) |
| */ |
| |
| goog.provide('goog.ui.MenuSeparatorRenderer'); |
| |
| goog.require('goog.dom'); |
| goog.require('goog.dom.classlist'); |
| goog.require('goog.ui.ControlRenderer'); |
| |
| |
| |
| /** |
| * Renderer for menu separators. |
| * @constructor |
| * @extends {goog.ui.ControlRenderer} |
| */ |
| goog.ui.MenuSeparatorRenderer = function() { |
| goog.ui.ControlRenderer.call(this); |
| }; |
| goog.inherits(goog.ui.MenuSeparatorRenderer, goog.ui.ControlRenderer); |
| goog.addSingletonGetter(goog.ui.MenuSeparatorRenderer); |
| |
| |
| /** |
| * Default CSS class to be applied to the root element of components rendered |
| * by this renderer. |
| * @type {string} |
| */ |
| goog.ui.MenuSeparatorRenderer.CSS_CLASS = goog.getCssName('goog-menuseparator'); |
| |
| |
| /** |
| * Returns an empty, styled menu separator DIV. Overrides {@link |
| * goog.ui.ControlRenderer#createDom}. |
| * @param {goog.ui.Control} separator goog.ui.Separator to render. |
| * @return {!Element} Root element for the separator. |
| * @override |
| */ |
| goog.ui.MenuSeparatorRenderer.prototype.createDom = function(separator) { |
| return separator.getDomHelper().createDom('div', this.getCssClass()); |
| }; |
| |
| |
| /** |
| * Takes an existing element, and decorates it with the separator. Overrides |
| * {@link goog.ui.ControlRenderer#decorate}. |
| * @param {goog.ui.Control} separator goog.ui.MenuSeparator to decorate the |
| * element. |
| * @param {Element} element Element to decorate. |
| * @return {!Element} Decorated element. |
| * @override |
| */ |
| goog.ui.MenuSeparatorRenderer.prototype.decorate = function(separator, |
| element) { |
| // Normally handled in the superclass. But we don't call the superclass. |
| if (element.id) { |
| separator.setId(element.id); |
| } |
| |
| if (element.tagName == 'HR') { |
| // Replace HR with separator. |
| var hr = element; |
| element = this.createDom(separator); |
| goog.dom.insertSiblingBefore(element, hr); |
| goog.dom.removeNode(hr); |
| } else { |
| goog.dom.classlist.add(element, this.getCssClass()); |
| } |
| return element; |
| }; |
| |
| |
| /** |
| * Overrides {@link goog.ui.ControlRenderer#setContent} to do nothing, since |
| * separators are empty. |
| * @param {Element} separator The separator's root element. |
| * @param {goog.ui.ControlContent} content Text caption or DOM structure to be |
| * set as the separators's content (ignored). |
| * @override |
| */ |
| goog.ui.MenuSeparatorRenderer.prototype.setContent = function(separator, |
| content) { |
| // Do nothing. Separators are empty. |
| }; |
| |
| |
| /** |
| * Returns the CSS class to be applied to the root element of components |
| * rendered using this renderer. |
| * @return {string} Renderer-specific CSS class. |
| * @override |
| */ |
| goog.ui.MenuSeparatorRenderer.prototype.getCssClass = function() { |
| return goog.ui.MenuSeparatorRenderer.CSS_CLASS; |
| }; |