1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Helper class for help page, that controls focus transition between 6 // elements on the help page and overlays. 7 cr.define('help', function() { 8 function HelpFocusManager() { 9 } 10 11 cr.addSingletonGetter(HelpFocusManager); 12 13 HelpFocusManager.prototype = { 14 __proto__: cr.ui.FocusManager.prototype, 15 16 getFocusParent: function() { 17 var page = help.HelpPage.getTopmostVisiblePage(); 18 if (!page) 19 return null; 20 return page.pageDiv; 21 }, 22 }; 23 24 return { 25 HelpFocusManager: HelpFocusManager, 26 }; 27 }); 28
