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1 /** | 1 /** |
2 * Copyright (c) 2012 The Chromium Authors. All rights reserved. | 2 * Copyright (c) 2012 The Chromium Authors. All rights reserved. |
3 * Use of this source code is governed by a BSD-style license that can be | 3 * Use of this source code is governed by a BSD-style license that can be |
4 * found in the LICENSE file. | 4 * found in the LICENSE file. |
5 */ | 5 */ |
6 | 6 |
7 /** | 7 /** |
8 * See http://dev.w3.org/2011/webrtc/editor/getusermedia.html for more | 8 * See http://dev.w3.org/2011/webrtc/editor/getusermedia.html for more |
9 * information on getUserMedia. | 9 * information on getUserMedia. |
10 */ | 10 */ |
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32 * This function asks permission to use the webcam and mic from the browser. It | 32 * This function asks permission to use the webcam and mic from the browser. It |
33 * will return ok-requested to PyAuto. This does not mean the request was | 33 * will return ok-requested to PyAuto. This does not mean the request was |
34 * approved though. The test will then have to click past the dialog that | 34 * approved though. The test will then have to click past the dialog that |
35 * appears in Chrome, which will run either the OK or failed callback as a | 35 * appears in Chrome, which will run either the OK or failed callback as a |
36 * a result. To see which callback was called, use obtainGetUserMediaResult(). | 36 * a result. To see which callback was called, use obtainGetUserMediaResult(). |
37 * | 37 * |
38 * @param{string} constraints Defines what to be requested, with mandatory | 38 * @param{string} constraints Defines what to be requested, with mandatory |
39 * and optional constraints defined. The contents of this parameter depends | 39 * and optional constraints defined. The contents of this parameter depends |
40 * on the WebRTC version. This should be JavaScript code that we eval(). | 40 * on the WebRTC version. This should be JavaScript code that we eval(). |
41 */ | 41 */ |
42 function getUserMedia(constraints) { | 42 function doGetUserMedia(constraints) { |
43 if (!navigator.webkitGetUserMedia) { | 43 if (!getUserMedia) { |
44 returnToTest('Browser does not support WebRTC.'); | 44 returnToTest('Browser does not support WebRTC.'); |
45 return; | 45 return; |
46 } | 46 } |
47 try { | 47 try { |
48 var evaluatedConstraints; | 48 var evaluatedConstraints; |
49 eval('evaluatedConstraints = ' + constraints); | 49 eval('evaluatedConstraints = ' + constraints); |
50 } catch (exception) { | 50 } catch (exception) { |
51 throw failTest('Not valid JavaScript expression: ' + constraints); | 51 throw failTest('Not valid JavaScript expression: ' + constraints); |
52 } | 52 } |
53 debug('Requesting getUserMedia: constraints: ' + constraints); | 53 debug('Requesting doGetUserMedia: constraints: ' + constraints); |
54 navigator.webkitGetUserMedia(evaluatedConstraints, | 54 getUserMedia(evaluatedConstraints, getUserMediaOkCallback_, |
55 getUserMediaOkCallback_, | 55 getUserMediaFailedCallback_); |
56 getUserMediaFailedCallback_); | |
57 returnToTest('ok-requested'); | 56 returnToTest('ok-requested'); |
58 } | 57 } |
59 | 58 |
60 /** | 59 /** |
61 * Must be called after calling getUserMedia. Returns not-called-yet if we have | 60 * Must be called after calling doGetUserMedia. Returns not-called-yet if we |
62 * not yet been called back by WebRTC. Otherwise it returns either ok-got-stream | 61 * have not yet been called back by WebRTC. Otherwise it returns either |
63 * or failed-with-error-x (where x is the error code from the error callback) | 62 * ok-got-stream or failed-with-error-x (where x is the error code from the |
64 * depending on which callback got called by WebRTC. | 63 * error callback) depending on which callback got called by WebRTC. |
65 */ | 64 */ |
66 function obtainGetUserMediaResult() { | 65 function obtainGetUserMediaResult() { |
67 returnToTest(gRequestWebcamAndMicrophoneResult); | 66 returnToTest(gRequestWebcamAndMicrophoneResult); |
68 return gRequestWebcamAndMicrophoneResult; | 67 return gRequestWebcamAndMicrophoneResult; |
69 } | 68 } |
70 | 69 |
71 /** | 70 /** |
72 * Stops the local stream. | 71 * Stops the local stream. |
73 */ | 72 */ |
74 function stopLocalStream() { | 73 function stopLocalStream() { |
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124 | 123 |
125 // Internals. | 124 // Internals. |
126 | 125 |
127 /** | 126 /** |
128 * @private | 127 * @private |
129 * @param {MediaStream} stream Media stream. | 128 * @param {MediaStream} stream Media stream. |
130 */ | 129 */ |
131 function getUserMediaOkCallback_(stream) { | 130 function getUserMediaOkCallback_(stream) { |
132 gLocalStream = stream; | 131 gLocalStream = stream; |
133 var videoTag = $('local-view'); | 132 var videoTag = $('local-view'); |
134 videoTag.src = webkitURL.createObjectURL(stream); | 133 attachMediaStream(videoTag, stream); |
135 | |
136 // Due to crbug.com/110938 the size is 0 when onloadedmetadata fires. | 134 // Due to crbug.com/110938 the size is 0 when onloadedmetadata fires. |
137 // videoTag.onloadedmetadata = updateVideoTagSize_('local-view'); | 135 // videoTag.onloadedmetadata = updateVideoTagSize_('local-view'); |
138 // Use setTimeout as a workaround for now. | 136 // Use setTimeout as a workaround for now. |
139 setTimeout(function() {updateVideoTagSize_('local-view')}, 500); | 137 setTimeout(function() {updateVideoTagSize_('local-view')}, 500); |
140 gRequestWebcamAndMicrophoneResult = 'ok-got-stream'; | 138 gRequestWebcamAndMicrophoneResult = 'ok-got-stream'; |
141 } | 139 } |
142 | 140 |
143 /** | 141 /** |
144 * @private | 142 * @private |
145 * @param {string} videoTagId The ID of the video tag to update. | 143 * @param {string} videoTagId The ID of the video tag to update. |
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160 * @param {NavigatorUserMediaError} error Error containing details. | 158 * @param {NavigatorUserMediaError} error Error containing details. |
161 */ | 159 */ |
162 function getUserMediaFailedCallback_(error) { | 160 function getUserMediaFailedCallback_(error) { |
163 debug('GetUserMedia FAILED: Maybe the camera is in use by another process?'); | 161 debug('GetUserMedia FAILED: Maybe the camera is in use by another process?'); |
164 gRequestWebcamAndMicrophoneResult = 'failed-with-error-' + error.code; | 162 gRequestWebcamAndMicrophoneResult = 'failed-with-error-' + error.code; |
165 } | 163 } |
166 | 164 |
167 $ = function(id) { | 165 $ = function(id) { |
168 return document.getElementById(id); | 166 return document.getElementById(id); |
169 }; | 167 }; |
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