| // Copyright 2014 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 Utilities for HTML element tag names. |
| */ |
| goog.provide('goog.dom.tags'); |
| |
| goog.require('goog.object'); |
| |
| |
| /** |
| * The void elements specified by |
| * http://www.w3.org/TR/html-markup/syntax.html#void-elements. |
| * @const |
| * @type {!Object} |
| * @private |
| */ |
| goog.dom.tags.VOID_TAGS_ = goog.object.createSet(('area,base,br,col,command,' + |
| 'embed,hr,img,input,keygen,link,meta,param,source,track,wbr').split(',')); |
| |
| |
| /** |
| * Checks whether the tag is void (with no contents allowed and no legal end |
| * tag), for example 'br'. |
| * @param {string} tagName The tag name in lower case. |
| * @return {boolean} |
| */ |
| goog.dom.tags.isVoidTag = function(tagName) { |
| return goog.dom.tags.VOID_TAGS_[tagName] === true; |
| }; |
