| // 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 a separator, with renderers for both |
| * horizontal (menu) and vertical (toolbar) separators. |
| * |
| * @author attila@google.com (Attila Bodis) |
| */ |
| |
| goog.provide('goog.ui.Separator'); |
| |
| goog.require('goog.a11y.aria'); |
| goog.require('goog.asserts'); |
| goog.require('goog.ui.Component'); |
| goog.require('goog.ui.Control'); |
| goog.require('goog.ui.MenuSeparatorRenderer'); |
| goog.require('goog.ui.registry'); |
| |
| |
| |
| /** |
| * Class representing a separator. Although it extends {@link goog.ui.Control}, |
| * the Separator class doesn't allocate any event handlers, nor does it change |
| * its appearance on mouseover, etc. |
| * @param {goog.ui.MenuSeparatorRenderer=} opt_renderer Renderer to render or |
| * decorate the separator; defaults to {@link goog.ui.MenuSeparatorRenderer}. |
| * @param {goog.dom.DomHelper=} opt_domHelper Optional DOM helper, used for |
| * document interaction. |
| * @constructor |
| * @extends {goog.ui.Control} |
| */ |
| goog.ui.Separator = function(opt_renderer, opt_domHelper) { |
| goog.ui.Control.call(this, null, opt_renderer || |
| goog.ui.MenuSeparatorRenderer.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); |
| |
| // Separators are always considered disabled. |
| this.setStateInternal(goog.ui.Component.State.DISABLED); |
| }; |
| goog.inherits(goog.ui.Separator, goog.ui.Control); |
| |
| |
| /** |
| * Configures the component after its DOM has been rendered. Overrides |
| * {@link goog.ui.Control#enterDocument} by making sure no event handler |
| * is allocated. |
| * @override |
| */ |
| goog.ui.Separator.prototype.enterDocument = function() { |
| goog.ui.Separator.superClass_.enterDocument.call(this); |
| var element = this.getElement(); |
| goog.asserts.assert(element, |
| 'The DOM element for the separator cannot be null.'); |
| goog.a11y.aria.setRole(element, 'separator'); |
| }; |
| |
| |
| // Register a decorator factory function for goog.ui.MenuSeparators. |
| goog.ui.registry.setDecoratorByClassName( |
| goog.ui.MenuSeparatorRenderer.CSS_CLASS, |
| function() { |
| // Separator defaults to using MenuSeparatorRenderer. |
| return new goog.ui.Separator(); |
| }); |