The Tor Browser / file comparison
comparison: webapprt/WebRTCHandler.jsm
webapprt/WebRTCHandler.jsm
- changeset 1
- ca08bd8f51b2
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| -1:000000000000 | 0:9cd0b6de05fa |
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| 1 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 2 * License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
| 3 * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 4 | |
| 5 "use strict"; | |
| 6 | |
| 7 this.EXPORTED_SYMBOLS = []; | |
| 8 | |
| 9 let Cc = Components.classes; | |
| 10 let Ci = Components.interfaces; | |
| 11 let Cu = Components.utils; | |
| 12 | |
| 13 Cu.import("resource://gre/modules/Services.jsm"); | |
| 14 Cu.import("resource://gre/modules/XPCOMUtils.jsm"); | |
| 15 | |
| 16 function handleRequest(aSubject, aTopic, aData) { | |
| 17 let { windowID, callID } = aSubject; | |
| 18 let constraints = aSubject.getConstraints(); | |
| 19 let contentWindow = Services.wm.getOuterWindowWithId(windowID); | |
| 20 | |
| 21 contentWindow.navigator.mozGetUserMediaDevices( | |
| 22 constraints, | |
| 23 function (devices) { | |
| 24 prompt(contentWindow, callID, constraints.audio, | |
| 25 constraints.video || constraints.picture, | |
| 26 devices); | |
| 27 }, | |
| 28 function (error) { | |
| 29 denyRequest(callID, error); | |
| 30 }); | |
| 31 } | |
| 32 | |
| 33 function prompt(aWindow, aCallID, aAudioRequested, aVideoRequested, aDevices) { | |
| 34 let audioDevices = []; | |
| 35 let videoDevices = []; | |
| 36 for (let device of aDevices) { | |
| 37 device = device.QueryInterface(Ci.nsIMediaDevice); | |
| 38 switch (device.type) { | |
| 39 case "audio": | |
| 40 if (aAudioRequested) { | |
| 41 audioDevices.push(device); | |
| 42 } | |
| 43 break; | |
| 44 | |
| 45 case "video": | |
| 46 if (aVideoRequested) { | |
| 47 videoDevices.push(device); | |
| 48 } | |
| 49 break; | |
| 50 } | |
| 51 } | |
| 52 | |
| 53 if (audioDevices.length == 0 && videoDevices.length == 0) { | |
| 54 denyRequest(aCallID); | |
| 55 return; | |
| 56 } | |
| 57 | |
| 58 let params = { | |
| 59 videoDevices: videoDevices, | |
| 60 audioDevices: audioDevices, | |
| 61 out: null | |
| 62 }; | |
| 63 aWindow.openDialog("chrome://webapprt/content/getUserMediaDialog.xul", "", | |
| 64 "chrome, dialog, modal", params).focus(); | |
| 65 | |
| 66 if (!params.out) { | |
| 67 denyRequest(aCallID); | |
| 68 return; | |
| 69 } | |
| 70 | |
| 71 let allowedDevices = Cc["@mozilla.org/supports-array;1"]. | |
| 72 createInstance(Ci.nsISupportsArray); | |
| 73 let videoIndex = params.out.video; | |
| 74 let audioIndex = params.out.audio; | |
| 75 | |
| 76 if (videoIndex != -1) { | |
| 77 allowedDevices.AppendElement(videoDevices[videoIndex]); | |
| 78 } | |
| 79 | |
| 80 if (audioIndex != -1) { | |
| 81 allowedDevices.AppendElement(audioDevices[audioIndex]); | |
| 82 } | |
| 83 | |
| 84 if (allowedDevices.Count()) { | |
| 85 Services.obs.notifyObservers(allowedDevices, "getUserMedia:response:allow", | |
| 86 aCallID); | |
| 87 } else { | |
| 88 denyRequest(aCallID); | |
| 89 } | |
| 90 } | |
| 91 | |
| 92 function denyRequest(aCallID, aError) { | |
| 93 let msg = null; | |
| 94 if (aError) { | |
| 95 msg = Cc["@mozilla.org/supports-string;1"]. | |
| 96 createInstance(Ci.nsISupportsString); | |
| 97 msg.data = aError; | |
| 98 } | |
| 99 | |
| 100 Services.obs.notifyObservers(msg, "getUserMedia:response:deny", aCallID); | |
| 101 } | |
| 102 | |
| 103 Services.obs.addObserver(handleRequest, "getUserMedia:request", false); |
