114 lines
3.5 KiB
JavaScript
114 lines
3.5 KiB
JavaScript
// Copyright 2008 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 Renderer for {@link goog.ui.MenuSeparator}s.
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*
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* @author attila@google.com (Attila Bodis)
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*/
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goog.provide('goog.ui.MenuSeparatorRenderer');
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goog.require('goog.dom');
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goog.require('goog.dom.classes');
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goog.require('goog.ui.ControlContent');
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goog.require('goog.ui.ControlRenderer');
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/**
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* Renderer for menu separators.
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* @constructor
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* @extends {goog.ui.ControlRenderer}
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*/
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goog.ui.MenuSeparatorRenderer = function() {
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goog.ui.ControlRenderer.call(this);
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};
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goog.inherits(goog.ui.MenuSeparatorRenderer, goog.ui.ControlRenderer);
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goog.addSingletonGetter(goog.ui.MenuSeparatorRenderer);
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/**
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* Default CSS class to be applied to the root element of components rendered
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* by this renderer.
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* @type {string}
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*/
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goog.ui.MenuSeparatorRenderer.CSS_CLASS = goog.getCssName('goog-menuseparator');
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/**
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* Returns an empty, styled menu separator DIV. Overrides {@link
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* goog.ui.ControlRenderer#createDom}.
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* @param {goog.ui.Control} separator goog.ui.Separator to render.
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* @return {Element} Root element for the separator.
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* @override
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*/
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goog.ui.MenuSeparatorRenderer.prototype.createDom = function(separator) {
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return separator.getDomHelper().createDom('div', this.getCssClass());
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};
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/**
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* Takes an existing element, and decorates it with the separator. Overrides
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* {@link goog.ui.ControlRenderer#decorate}.
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* @param {goog.ui.Control} separator goog.ui.MenuSeparator to decorate the
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* element.
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* @param {Element} element Element to decorate.
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* @return {Element} Decorated element.
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* @override
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*/
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goog.ui.MenuSeparatorRenderer.prototype.decorate = function(separator,
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element) {
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// Normally handled in the superclass. But we don't call the superclass.
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if (element.id) {
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separator.setId(element.id);
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}
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if (element.tagName == 'HR') {
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// Replace HR with separator.
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var hr = element;
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element = this.createDom(separator);
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goog.dom.insertSiblingBefore(element, hr);
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goog.dom.removeNode(hr);
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} else {
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goog.dom.classes.add(element, this.getCssClass());
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}
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return element;
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};
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/**
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* Overrides {@link goog.ui.ControlRenderer#setContent} to do nothing, since
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* separators are empty.
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* @param {Element} separator The separator's root element.
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* @param {goog.ui.ControlContent} content Text caption or DOM structure to be
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* set as the separators's content (ignored).
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* @override
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*/
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goog.ui.MenuSeparatorRenderer.prototype.setContent = function(separator,
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content) {
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// Do nothing. Separators are empty.
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};
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/**
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* Returns the CSS class to be applied to the root element of components
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* rendered using this renderer.
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* @return {string} Renderer-specific CSS class.
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* @override
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*/
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goog.ui.MenuSeparatorRenderer.prototype.getCssClass = function() {
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return goog.ui.MenuSeparatorRenderer.CSS_CLASS;
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};
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