page_visibility.js (933B)
1 /* 2 * Copyright 2015 The Closure Compiler Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 /** 17 * @fileoverview Externs for Page Visibility. 18 * 19 * @see http://www.w3.org/TR/page-visibility 20 * @externs 21 */ 22 23 /** 24 * @enum {string} 25 * @see http://www.w3.org/TR/page-visibility/#VisibilityState 26 */ 27 var VisibilityState = { 28 HIDDEN: 'hidden', 29 VISIBLE: 'visible', 30 PRERENDER: 'prerender', 31 UNLOADED: 'unloaded' 32 };