content/browser/resources/media/dump_creator.js

   1 // Copyright (c) 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
   6 /**
   7  * Provides the UI for dump creation.
   8  */
   9 var DumpCreator = (function() {
  10   /**
  11    * @param {Element} containerElement The parent element of the dump creation
  12    *     UI.
  13    * @constructor
  14    */
  15   function DumpCreator(containerElement) {
  16     /**
  17      * The root element of the dump creation UI.
  18      * @type {Element}
  19      * @private
  20      */
  21     this.root_ = document.createElement('details');
  22
  23     this.root_.className = 'peer-connection-dump-root';
  24     containerElement.appendChild(this.root_);
  25     var summary = document.createElement('summary');
  26     this.root_.appendChild(summary);
  27     summary.textContent = 'Create Dump';
  28     var content = document.createElement('div');
  29     this.root_.appendChild(content);
  30
  31     content.innerHTML = '<div><a><button>' +
  32         'Download the PeerConnection updates and stats data' +
  33         '</button></a></div>' +
  34         '<p><label><input type=checkbox>' +
  35         'Enable diagnostic audio recordings</label></p>' +
  36         '<p>A diagnostic audio recording is used for analyzing audio' +
  37         ' problems. It contains the audio played out from the speaker and' +
  38         ' recorded from the microphone and is saved to the local disk.' +
  39         ' Checking this box will enable the recording for ongoing WebRTC' +
  40         ' calls and for future WebRTC calls. When the box is unchecked or' +
  41         ' this page is closed, all ongoing recordings will be stopped and' +
  42         ' this recording functionality will be disabled for future WebRTC' +
  43         ' calls. Recordings in multiple tabs are supported as well as' +
  44         ' multiple recordings in the same tab. When enabling, you select a' +
  45         ' base filename to save the dump(s) to. The base filename will have a' +
  46         ' suffix appended to it as &lt;base filename&gt;.&lt;render process' +
  47         ' ID&gt;.&lt;recording ID&gt;. If recordings are' +
  48         ' disabled and then enabled using the same base filename, the' +
  49         ' file(s) will be appended to and may become invalid. It is' +
  50         ' recommended to choose a new base filename each time or move' +
  51         ' the resulting files before enabling again. If track processing is' +
  52         ' disabled (--disable-audio-track-processing): (1) Only one recording' +
  53         ' per render process is supported. (2) When the box is unchecked or' +
  54         ' this page is closed, ongoing recordings will continue until the' +
  55         ' call ends or the page with the recording is closed</p>';
  56
  57     content.getElementsByTagName('a')[0].addEventListener(
  58         'click', this.onDownloadData_.bind(this));
  59     content.getElementsByTagName('input')[0].addEventListener(
  60         'click', this.onAudioDebugRecordingsChanged_.bind(this));
  61   }
  62
  63   DumpCreator.prototype = {
  64     // Mark the diagnostic audio recording checkbox checked.
  65     enableAudioDebugRecordings: function() {
  66       this.root_.getElementsByTagName('input')[0].checked = true;
  67     },
  68
  69     // Mark the diagnostic audio recording checkbox unchecked.
  70     disableAudioDebugRecordings: function() {
  71       this.root_.getElementsByTagName('input')[0].checked = false;
  72     },
  73
  74     /**
  75      * Downloads the PeerConnection updates and stats data as a file.
  76      *
  77      * @private
  78      */
  79     onDownloadData_: function() {
  80       var dump_object =
  81       {
  82         'getUserMedia': userMediaRequests,
  83         'PeerConnections': peerConnectionDataStore,
  84       };
  85       var textBlob = new Blob([JSON.stringify(dump_object, null, ' ')],
  86                               {type: 'octet/stream'});
  87       var URL = window.URL.createObjectURL(textBlob);
  88
  89       var anchor = this.root_.getElementsByTagName('a')[0];
  90       anchor.href = URL;
  91       anchor.download = 'webrtc_internals_dump.txt';
  92       // The default action of the anchor will download the URL.
  93     },
  94
  95     /**
  96      * Handles the event of toggling the audio debug recordings state.
  97      *
  98      * @private
  99      */
 100     onAudioDebugRecordingsChanged_: function() {
 101       var enabled = this.root_.getElementsByTagName('input')[0].checked;
 102       if (enabled) {
 103         chrome.send('enableAudioDebugRecordings');
 104       } else {
 105         chrome.send('disableAudioDebugRecordings');
 106       }
 107     },
 108   };
 109   return DumpCreator;
 110 })();