extensions/test/data/web_view/apitest/inject_hidden_test.js

   1 // Copyright 2014 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 window.addEventListener('message', function(e) {
   6   var response = '';
   7   var data = JSON.parse(e.data);
   8
   9   if (data[0] == 'visibilityState-request') {
  10     response = document.visibilityState;
  11   } else {
  12     response = 'FAILED';
  13   }
  14
  15   e.source.postMessage(
  16       JSON.stringify(['visibilityState-response', response]), '*');
  17 });