| /* |
| * Copyright 2015 The Closure Compiler Authors |
| * |
| * 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 Externs for Page Visibility. |
| * |
| * @see http://www.w3.org/TR/page-visibility |
| * @externs |
| */ |
| |
| /** |
| * @enum {string} |
| * @see http://www.w3.org/TR/page-visibility/#VisibilityState |
| */ |
| var VisibilityState = { |
| HIDDEN: 'hidden', |
| VISIBLE: 'visible', |
| PRERENDER: 'prerender', |
| UNLOADED: 'unloaded' |
| }; |