| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| cr.define('uber', function() { |
| var PageManager = cr.ui.pageManager.PageManager; |
| |
| /** |
| * A PageManager observer that updates the uber page. |
| * @constructor |
| * @implements {cr.ui.pageManager.PageManager.Observer} |
| */ |
| function PageManagerObserver() {} |
| |
| PageManagerObserver.prototype = { |
| __proto__: PageManager.Observer.prototype, |
| |
| /** |
| * Informs the uber page when a top-level overlay is opened or closed. |
| * @param {cr.ui.pageManager.Page} page The page that is being shown or was |
| * hidden. |
| * @override |
| */ |
| onPageVisibilityChanged: function(page) { |
| if (PageManager.isTopLevelOverlay(page)) { |
| if (page.visible) |
| uber.invokeMethodOnParent('beginInterceptingEvents'); |
| else |
| uber.invokeMethodOnParent('stopInterceptingEvents'); |
| } |
| }, |
| |
| /** |
| * Uses uber to set the title. |
| * @param {string} title The title to set. |
| * @override |
| */ |
| updateTitle: function(title) { |
| uber.setTitle(title); |
| }, |
| |
| /** |
| * Pushes the current page onto the history stack, replacing the current |
| * entry if appropriate. |
| * @param {string} path The path of the page to push onto the stack. |
| * @param {boolean} replace If true, allow no history events to be created. |
| * @override |
| */ |
| updateHistory: function(path, replace) { |
| var historyFunction = replace ? uber.replaceState : uber.pushState; |
| historyFunction({}, path); |
| }, |
| }; |
| |
| // Export |
| return { |
| PageManagerObserver: PageManagerObserver |
| }; |
| }); |
