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Diffstat (limited to 'modules/webrtcUI.jsm')
| -rw-r--r-- | modules/webrtcUI.jsm | 292 |
1 files changed, 292 insertions, 0 deletions
diff --git a/modules/webrtcUI.jsm b/modules/webrtcUI.jsm new file mode 100644 index 0000000..819ca18 --- /dev/null +++ b/modules/webrtcUI.jsm @@ -0,0 +1,292 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this file, + * You can obtain one at http://mozilla.org/MPL/2.0/. */ + +"use strict"; + +this.EXPORTED_SYMBOLS = ["webrtcUI"]; + +const Cu = Components.utils; +const Cc = Components.classes; +const Ci = Components.interfaces; + +Cu.import("resource://gre/modules/Services.jsm"); +Cu.import("resource://gre/modules/XPCOMUtils.jsm"); + +XPCOMUtils.defineLazyModuleGetter(this, "PluralForm", + "resource://gre/modules/PluralForm.jsm"); + +XPCOMUtils.defineLazyServiceGetter(this, "MediaManagerService", + "@mozilla.org/mediaManagerService;1", + "nsIMediaManagerService"); + +this.webrtcUI = { + init: function () { + Services.obs.addObserver(handleRequest, "getUserMedia:request", false); + Services.obs.addObserver(updateIndicators, "recording-device-events", false); + Services.obs.addObserver(removeBrowserSpecificIndicator, "recording-window-ended", false); + }, + + uninit: function () { + Services.obs.removeObserver(handleRequest, "getUserMedia:request"); + Services.obs.removeObserver(updateIndicators, "recording-device-events"); + Services.obs.removeObserver(removeBrowserSpecificIndicator, "recording-window-ended"); + }, + + showGlobalIndicator: false, + + get activeStreams() { + let contentWindowSupportsArray = MediaManagerService.activeMediaCaptureWindows; + let count = contentWindowSupportsArray.Count(); + let activeStreams = []; + for (let i = 0; i < count; i++) { + let contentWindow = contentWindowSupportsArray.GetElementAt(i); + let browser = getBrowserForWindow(contentWindow); + let browserWindow = browser.ownerDocument.defaultView; + let tab = browserWindow.gBrowser && + browserWindow.gBrowser._getTabForContentWindow(contentWindow.top); + activeStreams.push({ + uri: contentWindow.location.href, + tab: tab, + browser: browser + }); + } + return activeStreams; + } +} + +function getBrowserForWindowId(aWindowID) { + return getBrowserForWindow(Services.wm.getOuterWindowWithId(aWindowID)); +} + +function getBrowserForWindow(aContentWindow) { + return aContentWindow.QueryInterface(Ci.nsIInterfaceRequestor) + .getInterface(Ci.nsIWebNavigation) + .QueryInterface(Ci.nsIDocShell) + .chromeEventHandler; +} + +function handleRequest(aSubject, aTopic, aData) { + let {windowID: windowID, callID: callID} = JSON.parse(aData); + + let params = aSubject.QueryInterface(Ci.nsIMediaStreamOptions); + + Services.wm.getMostRecentWindow(null).navigator.mozGetUserMediaDevices( + function (devices) { + prompt(windowID, callID, params.audio, params.video || params.picture, devices); + }, + function (error) { + // bug 827146 -- In the future, the UI should catch NO_DEVICES_FOUND + // and allow the user to plug in a device, instead of immediately failing. + denyRequest(callID, error); + } + ); +} + +function denyRequest(aCallID, aError) { + let msg = null; + if (aError) { + msg = Cc["@mozilla.org/supports-string;1"].createInstance(Ci.nsISupportsString); + msg.data = aError; + } + Services.obs.notifyObservers(msg, "getUserMedia:response:deny", aCallID); +} + +function prompt(aWindowID, aCallID, aAudioRequested, aVideoRequested, aDevices) { + let audioDevices = []; + let videoDevices = []; + for (let device of aDevices) { + device = device.QueryInterface(Ci.nsIMediaDevice); + switch (device.type) { + case "audio": + if (aAudioRequested) + audioDevices.push(device); + break; + case "video": + if (aVideoRequested) + videoDevices.push(device); + break; + } + } + + let requestType; + if (audioDevices.length && videoDevices.length) + requestType = "CameraAndMicrophone"; + else if (audioDevices.length) + requestType = "Microphone"; + else if (videoDevices.length) + requestType = "Camera"; + else { + denyRequest(aCallID, "NO_DEVICES_FOUND"); + return; + } + + let contentWindow = Services.wm.getOuterWindowWithId(aWindowID); + let host = contentWindow.document.documentURIObject.host; + let browser = getBrowserForWindow(contentWindow); + let chromeDoc = browser.ownerDocument; + let chromeWin = chromeDoc.defaultView; + let stringBundle = chromeWin.gNavigatorBundle; + let message = stringBundle.getFormattedString("getUserMedia.share" + requestType + ".message", + [ host ]); + + let mainAction = { + label: PluralForm.get(requestType == "CameraAndMicrophone" ? 2 : 1, + stringBundle.getString("getUserMedia.shareSelectedDevices.label")), + accessKey: stringBundle.getString("getUserMedia.shareSelectedDevices.accesskey"), + // The real callback will be set during the "showing" event. The + // empty function here is so that PopupNotifications.show doesn't + // reject the action. + callback: function() {} + }; + + let secondaryActions = [{ + label: stringBundle.getString("getUserMedia.denyRequest.label"), + accessKey: stringBundle.getString("getUserMedia.denyRequest.accesskey"), + callback: function () { + denyRequest(aCallID); + } + }]; + + let options = { + eventCallback: function(aTopic, aNewBrowser) { + if (aTopic == "swapping") + return true; + + if (aTopic != "showing") + return false; + + let chromeDoc = this.browser.ownerDocument; + + function listDevices(menupopup, devices) { + while (menupopup.lastChild) + menupopup.removeChild(menupopup.lastChild); + + let deviceIndex = 0; + for (let device of devices) { + addDeviceToList(menupopup, device.name, deviceIndex); + deviceIndex++; + } + } + + function addDeviceToList(menupopup, deviceName, deviceIndex) { + let menuitem = chromeDoc.createElement("menuitem"); + menuitem.setAttribute("value", deviceIndex); + menuitem.setAttribute("label", deviceName); + menuitem.setAttribute("tooltiptext", deviceName); + menupopup.appendChild(menuitem); + } + + chromeDoc.getElementById("webRTC-selectCamera").hidden = !videoDevices.length; + chromeDoc.getElementById("webRTC-selectMicrophone").hidden = !audioDevices.length; + + let camMenupopup = chromeDoc.getElementById("webRTC-selectCamera-menupopup"); + let micMenupopup = chromeDoc.getElementById("webRTC-selectMicrophone-menupopup"); + listDevices(camMenupopup, videoDevices); + listDevices(micMenupopup, audioDevices); + if (requestType == "CameraAndMicrophone") { + let stringBundle = chromeDoc.defaultView.gNavigatorBundle; + addDeviceToList(camMenupopup, stringBundle.getString("getUserMedia.noVideo.label"), "-1"); + addDeviceToList(micMenupopup, stringBundle.getString("getUserMedia.noAudio.label"), "-1"); + } + + this.mainAction.callback = function() { + let allowedDevices = Cc["@mozilla.org/supports-array;1"] + .createInstance(Ci.nsISupportsArray); + if (videoDevices.length) { + let videoDeviceIndex = chromeDoc.getElementById("webRTC-selectCamera-menulist").value; + if (videoDeviceIndex != "-1") + allowedDevices.AppendElement(videoDevices[videoDeviceIndex]); + } + if (audioDevices.length) { + let audioDeviceIndex = chromeDoc.getElementById("webRTC-selectMicrophone-menulist").value; + if (audioDeviceIndex != "-1") + allowedDevices.AppendElement(audioDevices[audioDeviceIndex]); + } + + if (allowedDevices.Count() == 0) { + denyRequest(aCallID); + return; + } + + Services.obs.notifyObservers(allowedDevices, "getUserMedia:response:allow", aCallID); + }; + return true; + } + }; + + chromeWin.PopupNotifications.show(browser, "webRTC-shareDevices", message, + "webRTC-shareDevices-notification-icon", mainAction, + secondaryActions, options); +} + +function updateIndicators() { + webrtcUI.showGlobalIndicator = + MediaManagerService.activeMediaCaptureWindows.Count() > 0; + + let e = Services.wm.getEnumerator("navigator:browser"); + while (e.hasMoreElements()) + e.getNext().WebrtcIndicator.updateButton(); + + for (let {browser: browser} of webrtcUI.activeStreams) + showBrowserSpecificIndicator(browser); +} + +function showBrowserSpecificIndicator(aBrowser) { + let hasVideo = {}; + let hasAudio = {}; + MediaManagerService.mediaCaptureWindowState(aBrowser.contentWindow, + hasVideo, hasAudio); + let captureState; + if (hasVideo.value && hasAudio.value) { + captureState = "CameraAndMicrophone"; + } else if (hasVideo.value) { + captureState = "Camera"; + } else if (hasAudio.value) { + captureState = "Microphone"; + } else { + Cu.reportError("showBrowserSpecificIndicator: got neither video nor audio access"); + return; + } + + let chromeWin = aBrowser.ownerDocument.defaultView; + let stringBundle = chromeWin.gNavigatorBundle; + + let message = stringBundle.getString("getUserMedia.sharing" + captureState + ".message2"); + + let windowId = aBrowser.contentWindow + .QueryInterface(Ci.nsIInterfaceRequestor) + .getInterface(Ci.nsIDOMWindowUtils) + .currentInnerWindowID; + let mainAction = { + label: "Continue Sharing", //stringBundle.getString("getUserMedia.continueSharing.label"), + accessKey: "C", //stringBundle.getString("getUserMedia.continueSharing.accesskey"), + callback: function () {}, + dismiss: true + }; + let secondaryActions = [{ + label: "Stop Sharing", //stringBundle.getString("getUserMedia.stopSharing.label"), + accessKey: "S", //stringBundle.getString("getUserMedia.stopSharing.accesskey"), + callback: function () { + Services.obs.notifyObservers(null, "getUserMedia:revoke", windowId); + } + }]; + let options = { + hideNotNow: true, + dismissed: true, + eventCallback: function(aTopic) aTopic == "swapping" + }; + chromeWin.PopupNotifications.show(aBrowser, "webRTC-sharingDevices", message, + "webRTC-sharingDevices-notification-icon", mainAction, + secondaryActions, options); +} + +function removeBrowserSpecificIndicator(aSubject, aTopic, aData) { + let browser = getBrowserForWindowId(aData); + let PopupNotifications = browser.ownerDocument.defaultView.PopupNotifications; + let notification = PopupNotifications && + PopupNotifications.getNotification("webRTC-sharingDevices", + browser); + if (notification) + PopupNotifications.remove(notification); +} |