Notify listeners of video quality changed event and display message on UIstaging/cm-12.0-caf

- Add methods to notify listeners of type VideoEventListener
  when video quality changes.

- Display a notification on the UI when video quality changes.

Change-Id: Ifa86eb78a583f1ad60e4b842af93c8e348b7fd86

4 files changed, 86 insertions, 1 deletions

diff --git a/src/com/android/incallui/InCallVideoCallListener.java b/src/com/android/incallui/InCallVideoCallListener.java
index 10df01d7..de4eccbc 100644
--- a/src/com/android/incallui/InCallVideoCallListener.java
+++ b/src/com/android/incallui/InCallVideoCallListener.java
@@ -120,6 +120,16 @@ public class InCallVideoCallListener extends VideoCall.Listener {
     }
 
     /**
+     * Handles a change to the video quality of the call.
+     *
+     * @param videoQuality The updated video call quality.
+     */
+    @Override
+    public void onVideoQualityChanged(int videoQuality) {
+        InCallVideoCallListenerNotifier.getInstance().videoQualityChanged(mCall, videoQuality);
+    }
+
+    /**
      * Handles a change to the call data usage.  No implementation as the in-call UI does not
      * display data usage.
      *
diff --git a/src/com/android/incallui/InCallVideoCallListenerNotifier.java b/src/com/android/incallui/InCallVideoCallListenerNotifier.java
index 90a5e3db..e40507cb 100644
--- a/src/com/android/incallui/InCallVideoCallListenerNotifier.java
+++ b/src/com/android/incallui/InCallVideoCallListenerNotifier.java
@@ -179,6 +179,18 @@ public class InCallVideoCallListenerNotifier {
     }
 
     /**
+     * Inform listeners of any change in the video quality of the call
+     *
+     * @param call The call.
+     * @param videoQuality The updated video quality of the call.
+     */
+    public void videoQualityChanged(Call call, int videoQuality) {
+        for (VideoEventListener listener : mVideoEventListeners) {
+            listener.onVideoQualityChanged(call, videoQuality);
+        }
+    }
+
+    /**
      * Inform listeners of a change to peer dimensions.
      *
      * @param call The call.
@@ -243,7 +255,7 @@ public class InCallVideoCallListenerNotifier {
 
     /**
      * Listener interface for any class that wants to be notified of video events, including pause
-     * and un-pause of peer video.
+     * and un-pause of peer video, video quality changes.
      */
     public interface VideoEventListener {
         /**
@@ -254,6 +266,15 @@ public class InCallVideoCallListenerNotifier {
          *               otherwise.
          */
         public void onPeerPauseStateChanged(Call call, boolean paused);
+
+        /**
+         * Called when the video quality changes.
+         *
+         * @param call   The call whose video quality changes.
+         * @param videoCallQuality - values are QUALITY_HIGH, MEDIUM, LOW and UNKNOWN.
+         */
+        public void onVideoQualityChanged(Call call, int videoCallQuality);
+
     }
 
     /**
diff --git a/src/com/android/incallui/VideoCallFragment.java b/src/com/android/incallui/VideoCallFragment.java
index 7c7ae812..6e5b87ff 100644
--- a/src/com/android/incallui/VideoCallFragment.java
+++ b/src/com/android/incallui/VideoCallFragment.java
@@ -30,6 +30,8 @@ import android.view.ViewStub;
 import android.view.ViewTreeObserver;
 
 import com.google.common.base.Objects;
+import android.widget.Toast;
+import android.telecom.VideoProfile;
 
 /**
  * Fragment containing video calling surfaces.
@@ -542,6 +544,35 @@ public class VideoCallFragment extends BaseFragment<VideoCallPresenter,
     }
 
     /**
+     * Displays a message on the UI that the video call quality has changed.
+     *
+     */
+    @Override
+    public void showVideoQualityChanged(int videoQuality) {
+        Log.d(this, "showVideoQualityChanged. Video quality changed to " + videoQuality);
+
+        String videoQualityChangedText = "Video quality changed to ";
+        switch (videoQuality) {
+            case VideoProfile.QUALITY_HIGH:
+                videoQualityChangedText += "High";
+                break;
+            case VideoProfile.QUALITY_MEDIUM:
+                videoQualityChangedText += "Medium";
+                break;
+            case VideoProfile.QUALITY_LOW:
+                videoQualityChangedText += "Low";
+                break;
+            // Both unknown and default should display unknown. Intentional fall through.
+            case VideoProfile.QUALITY_UNKNOWN:
+            default:
+                videoQualityChangedText += "Unknown";
+                break;
+        }
+
+        Toast.makeText(getActivity(), videoQualityChangedText, Toast.LENGTH_SHORT).show();
+    }
+
+    /**
      * Cleans up the video telephony surfaces.  Used when the presenter indicates a change to an
      * audio-only state.  Since the surfaces are static, it is important to ensure they are cleaned
      * up promptly.
diff --git a/src/com/android/incallui/VideoCallPresenter.java b/src/com/android/incallui/VideoCallPresenter.java
index d1bcdf39..10250d6c 100644
--- a/src/com/android/incallui/VideoCallPresenter.java
+++ b/src/com/android/incallui/VideoCallPresenter.java
@@ -613,6 +613,28 @@ public class VideoCallPresenter extends Presenter<VideoCallPresenter.VideoCallUi
     }
 
     /**
+     * Handles any video quality changes in the call.
+     *
+     * @param call The call which experienced a video quality change.
+     * @param videoQuality The new video call quality.
+     */
+    @Override
+    public void onVideoQualityChanged(Call call, int videoQuality) {
+        if (!call.equals(mPrimaryCall)) {
+            return;
+        }
+
+        VideoCallUi ui = getUi();
+        if (ui == null) {
+            Log.e(this, "Error VideoCallUi is null. Return.");
+            return;
+        }
+
+        // Display a video quality changed message on UI.
+        ui.showVideoQualityChanged(videoQuality);
+    }
+
+    /**
      * Handles a change to the dimensions of the local camera.  Receiving the camera capabilities
      * triggers the creation of the video
      *
@@ -768,6 +790,7 @@ public class VideoCallPresenter extends Presenter<VideoCallPresenter.VideoCallUi
      */
     public interface VideoCallUi extends Ui {
         void showVideoUi(boolean show);
+        void showVideoQualityChanged(int videoQuality);
         boolean isDisplayVideoSurfaceCreated();
         boolean isPreviewVideoSurfaceCreated();
         Surface getDisplayVideoSurface();