1 files changed, 272 insertions, 0 deletions
diff --git a/application/palemoon/modules/webrtcUI.jsm b/application/palemoon/modules/webrtcUI.jsm
new file mode 100644
index 000000000..c957bfd9a
--- /dev/null
+++ b/application/palemoon/modules/webrtcUI.jsm
@@ -0,0 +1,272 @@
+/* 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/PluralForm.jsm");
+Cu.import("resource://gre/modules/XPCOMUtils.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 ]);
+
+  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") {
+    addDeviceToList(camMenupopup, stringBundle.getString("getUserMedia.noVideo.label"), "-1");
+    addDeviceToList(micMenupopup, stringBundle.getString("getUserMedia.noAudio.label"), "-1");
+  }
+
+  let mainAction = {
+    label: PluralForm.get(requestType == "CameraAndMicrophone" ? 2 : 1,
+                          stringBundle.getString("getUserMedia.shareSelectedDevices.label")),
+    accessKey: stringBundle.getString("getUserMedia.shareSelectedDevices.accesskey"),
+    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);
+    }
+  };
+
+  let secondaryActions = [{
+    label: stringBundle.getString("getUserMedia.denyRequest.label"),
+    accessKey: stringBundle.getString("getUserMedia.denyRequest.accesskey"),
+    callback: function () {
+      denyRequest(aCallID);
+    }
+  }];
+
+  let options = null;
+
+  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
+  };
+  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);
+}