chrome/browser/resources/user_actions/user_actions.js

   1 // Copyright 2012 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 /**
   6  * Javascript for user_actions.html, served from chrome://user-actions/
   7  * This is used to debug user actions recording. It displays a live
   8  * stream of all user action events that occur in chromium while the
   9  * chrome://user-actions/ page is open.
  10  *
  11  * The simple object defined in this javascript file listens for
  12  * callbacks from the C++ code saying that a new user action was seen.
  13  */
  14
  15 cr.define('userActions', function() {
  16   'use strict';
  17
  18   /**
  19    * Appends a row to the output table listing the user action observed
  20    * and the current timestamp.
  21    * @param {string} userAction the name of the user action observed.
  22    */
  23   function observeUserAction(userAction) {
  24     var table = $('user-actions-table');
  25     var tr = document.createElement('tr');
  26     var td = document.createElement('td');
  27     td.textContent = userAction;
  28     tr.appendChild(td);
  29     td = document.createElement('td');
  30     td.textContent = Date.now() / 1000;  // in seconds since epoch
  31     tr.appendChild(td);
  32     table.appendChild(tr);
  33   }
  34
  35   return {
  36     observeUserAction: observeUserAction
  37   };
  38 });