1 files changed, 131 insertions, 0 deletions
diff --git a/mobile/android/modules/geckoview/GeckoViewMedia.jsm b/mobile/android/modules/geckoview/GeckoViewMedia.jsm
new file mode 100644
index 0000000000..26a95a9d50
--- /dev/null
+++ b/mobile/android/modules/geckoview/GeckoViewMedia.jsm
@@ -0,0 +1,131 @@
+/* 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";
+
+var EXPORTED_SYMBOLS = ["GeckoViewMedia", "GeckoViewRecordingMedia"];
+
+const { GeckoViewModule } = ChromeUtils.import(
+  "resource://gre/modules/GeckoViewModule.jsm"
+);
+const { GeckoViewUtils } = ChromeUtils.import(
+  "resource://gre/modules/GeckoViewUtils.jsm"
+);
+const { XPCOMUtils } = ChromeUtils.import(
+  "resource://gre/modules/XPCOMUtils.jsm"
+);
+
+XPCOMUtils.defineLazyModuleGetters(this, {
+  GeckoViewUtils: "resource://gre/modules/GeckoViewUtils.jsm",
+});
+
+XPCOMUtils.defineLazyServiceGetter(
+  this,
+  "MediaManagerService",
+  "@mozilla.org/mediaManagerService;1",
+  "nsIMediaManagerService"
+);
+
+const STATUS_RECORDING = "recording";
+const STATUS_INACTIVE = "inactive";
+const TYPE_CAMERA = "camera";
+const TYPE_MICROPHONE = "microphone";
+
+class GeckoViewMedia extends GeckoViewModule {
+  onEnable() {
+    this.registerListener([
+      "GeckoView:MediaObserve",
+      "GeckoView:MediaUnobserve",
+      "GeckoView:MediaPlay",
+      "GeckoView:MediaPause",
+      "GeckoView:MediaSeek",
+      "GeckoView:MediaSetVolume",
+      "GeckoView:MediaSetMuted",
+      "GeckoView:MediaSetPlaybackRate",
+    ]);
+  }
+
+  onDisable() {
+    this.unregisterListener();
+  }
+
+  onEvent(aEvent, aData, aCallback) {
+    debug`onEvent: event=${aEvent}, data=${aData}`;
+    this.messageManager.sendAsyncMessage(aEvent, aData);
+  }
+}
+
+const GeckoViewRecordingMedia = {
+  // The event listener for this is hooked up in GeckoViewStartup.jsm
+  observe(aSubject, aTopic, aData) {
+    debug`observe: aTopic=${aTopic}`;
+    switch (aTopic) {
+      case "recording-device-events": {
+        this.handleRecordingDeviceEvents();
+        break;
+      }
+    }
+  },
+
+  handleRecordingDeviceEvents() {
+    const [dispatcher] = GeckoViewUtils.getActiveDispatcherAndWindow();
+    if (dispatcher) {
+      const windows = MediaManagerService.activeMediaCaptureWindows;
+      const devices = [];
+
+      const getStatusString = function(activityStatus) {
+        switch (activityStatus) {
+          case MediaManagerService.STATE_CAPTURE_ENABLED:
+          case MediaManagerService.STATE_CAPTURE_DISABLED:
+            return STATUS_RECORDING;
+          case MediaManagerService.STATE_NOCAPTURE:
+            return STATUS_INACTIVE;
+          default:
+            throw new Error("Unexpected activityStatus value");
+        }
+      };
+
+      for (let i = 0; i < windows.length; i++) {
+        const win = windows.queryElementAt(i, Ci.nsIDOMWindow);
+        const hasCamera = {};
+        const hasMicrophone = {};
+        const screen = {};
+        const window = {};
+        const browser = {};
+        const mediaDevices = {};
+        MediaManagerService.mediaCaptureWindowState(
+          win,
+          hasCamera,
+          hasMicrophone,
+          screen,
+          window,
+          browser,
+          mediaDevices
+        );
+        var cameraStatus = getStatusString(hasCamera.value);
+        var microphoneStatus = getStatusString(hasMicrophone.value);
+        if (hasCamera.value != MediaManagerService.STATE_NOCAPTURE) {
+          devices.push({
+            type: TYPE_CAMERA,
+            status: cameraStatus,
+          });
+        }
+        if (hasMicrophone.value != MediaManagerService.STATE_NOCAPTURE) {
+          devices.push({
+            type: TYPE_MICROPHONE,
+            status: microphoneStatus,
+          });
+        }
+      }
+      dispatcher.sendRequestForResult({
+        type: "GeckoView:MediaRecordingStatusChanged",
+        devices,
+      });
+    } else {
+      console.log("no dispatcher present");
+    }
+  },
+};
+
+const { debug, warn } = GeckoViewMedia.initLogging("GeckoViewMedia");