chrome/browser/resources/chromeos/chromevox/testing/chromevox_next_e2e_test_base.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 // Include test fixture.
   6 GEN_INCLUDE(['chromevox_e2e_test_base.js']);
   7
   8 /**
   9  * Base test fixture for ChromeVox Next end to end tests.
  10  *
  11  * These tests are identical to ChromeVoxE2ETests except for performing the
  12  * necessary setup to run ChromeVox Next.
  13  * @constructor
  14  * @extends {ChromeVoxE2ETest}
  15  */
  16 function ChromeVoxNextE2ETest() {
  17   ChromeVoxE2ETest.call(this);
  18 }
  19
  20 ChromeVoxNextE2ETest.prototype = {
  21   __proto__: ChromeVoxE2ETest.prototype,
  22
  23   /**
  24    * Gets the desktop from the automation API and Launches a new tab with
  25    * the given document, and runs |callback| when a load complete fires.
  26    * Arranges to call |testDone()| after |callback| returns.
  27    * NOTE: Callbacks creatd instide |opt_callback| must be wrapped with
  28    * |this.newCallback| if passed to asynchonous calls.  Otherwise, the test
  29    * will be finished prematurely.
  30    * @param {function() : void} doc Snippet wrapped inside of a function.
  31    * @param {function(chrome.automation.AutomationNode)} callback
  32    *     Called once the document is ready.
  33    */
  34   runWithLoadedTree: function(doc, callback) {
  35     callback = this.newCallback(callback);
  36     chrome.automation.getDesktop(function(r) {
  37       var listener = function(evt) {
  38         if (!evt.target.docUrl ||
  39             evt.target.docUrl.indexOf('test') == -1)
  40           return;
  41
  42         r.removeEventListener(listener);
  43         callback && callback(evt.target);
  44         callback = null;
  45       };
  46       r.addEventListener('loadComplete', listener, true);
  47       this.runWithTab(doc);
  48     }.bind(this));
  49   },
  50
  51   listenOnce: function(node, eventType, callback, capture) {
  52     var innerCallback = this.newCallback(function() {
  53       node.removeEventListener(eventType, innerCallback, capture);
  54       callback();
  55     });
  56     node.addEventListener(eventType, innerCallback, capture);
  57   }
  58 };