Add a path for generic event from a session to an application in Tv Input Framework.

Plus, Video size changed event is also added.

Bug: 14126559
Change-Id: I04c553481fbaf8d92adbcc34f3c9d26acc87b361

5 files changed, 147 insertions, 9 deletions

diff --git a/core/java/android/tv/ITvInputClient.aidl b/core/java/android/tv/ITvInputClient.aidl
index ac83356..ef89c68 100644
--- a/core/java/android/tv/ITvInputClient.aidl
+++ b/core/java/android/tv/ITvInputClient.aidl
@@ -17,6 +17,7 @@
 package android.tv;
 
 import android.content.ComponentName;
+import android.os.Bundle;
 import android.tv.ITvInputSession;
 import android.view.InputChannel;
 
@@ -29,4 +30,6 @@ oneway interface ITvInputClient {
     void onSessionCreated(in String inputId, IBinder token, in InputChannel channel, int seq);
     void onAvailabilityChanged(in String inputId, boolean isAvailable);
     void onSessionReleased(int seq);
+    void onSessionEvent(in String name, in Bundle args, int seq);
+    void onVideoSizeChanged(int width, int height, int seq);
 }
diff --git a/core/java/android/tv/ITvInputSessionCallback.aidl b/core/java/android/tv/ITvInputSessionCallback.aidl
index a2bd0d7..e27b8bf 100644
--- a/core/java/android/tv/ITvInputSessionCallback.aidl
+++ b/core/java/android/tv/ITvInputSessionCallback.aidl
@@ -16,6 +16,7 @@
 
 package android.tv;
 
+import android.os.Bundle;
 import android.tv.ITvInputSession;
 
 /**
@@ -25,4 +26,6 @@ import android.tv.ITvInputSession;
  */
 oneway interface ITvInputSessionCallback {
     void onSessionCreated(ITvInputSession session);
+    void onSessionEvent(in String name, in Bundle args);
+    void onVideoSizeChanged(int width, int height);
 }
diff --git a/core/java/android/tv/TvInputManager.java b/core/java/android/tv/TvInputManager.java
index dfa84f8..d0c2ca6 100644
--- a/core/java/android/tv/TvInputManager.java
+++ b/core/java/android/tv/TvInputManager.java
@@ -18,6 +18,7 @@ package android.tv;
 
 import android.graphics.Rect;
 import android.net.Uri;
+import android.os.Bundle;
 import android.os.Handler;
 import android.os.IBinder;
 import android.os.Looper;
@@ -85,6 +86,29 @@ public final class TvInputManager {
          */
         public void onSessionReleased(Session session) {
         }
+
+        /**
+         * This is called at the beginning of the playback of a channel and later when the size of
+         * the video has been changed.
+         *
+         * @param session A {@link TvInputManager.Session} associated with this callback
+         * @param width the width of the video
+         * @param height the height of the video
+         * @hide
+         */
+        public void onVideoSizeChanged(Session session, int width, int height) {
+        }
+
+        /**
+         * This is called when a custom event has been sent from this session.
+         *
+         * @param session A {@link TvInputManager.Session} associated with this callback
+         * @param eventType The type of the event.
+         * @param eventArgs Optional arguments of the event.
+         * @hide
+         */
+        public void onSessionEvent(Session session, String eventType, Bundle eventArgs) {
+        }
     }
 
     private static final class SessionCallbackRecord {
@@ -116,6 +140,24 @@ public final class TvInputManager {
                 }
             });
         }
+
+        public void postVideoSizeChanged(final int width, final int height) {
+            mHandler.post(new Runnable() {
+                @Override
+                public void run() {
+                    mSessionCallback.onVideoSizeChanged(mSession, width, height);
+                }
+            });
+        }
+
+        public void postSessionEvent(final String eventType, final Bundle eventArgs) {
+            mHandler.post(new Runnable() {
+                @Override
+                public void run() {
+                    mSessionCallback.onSessionEvent(mSession, eventType, eventArgs);
+                }
+            });
+        }
     }
 
     /**
@@ -196,6 +238,30 @@ public final class TvInputManager {
             }
 
             @Override
+            public void onVideoSizeChanged(int width, int height, int seq) {
+                synchronized (mSessionCallbackRecordMap) {
+                    SessionCallbackRecord record = mSessionCallbackRecordMap.get(seq);
+                    if (record == null) {
+                        Log.e(TAG, "Callback not found for seq " + seq);
+                        return;
+                    }
+                    record.postVideoSizeChanged(width, height);
+                }
+            }
+
+            @Override
+            public void onSessionEvent(String eventType, Bundle eventArgs, int seq) {
+                synchronized (mSessionCallbackRecordMap) {
+                    SessionCallbackRecord record = mSessionCallbackRecordMap.get(seq);
+                    if (record == null) {
+                        Log.e(TAG, "Callback not found for seq " + seq);
+                        return;
+                    }
+                    record.postSessionEvent(eventType, eventArgs);
+                }
+            }
+
+            @Override
             public void onAvailabilityChanged(String inputId, boolean isAvailable) {
                 synchronized (mTvInputListenerRecordsMap) {
                     List<TvInputListenerRecord> records = mTvInputListenerRecordsMap.get(inputId);
diff --git a/core/java/android/tv/TvInputService.java b/core/java/android/tv/TvInputService.java
index cb0142f..03d24db 100644
--- a/core/java/android/tv/TvInputService.java
+++ b/core/java/android/tv/TvInputService.java
@@ -23,6 +23,7 @@ import android.content.Intent;
 import android.graphics.PixelFormat;
 import android.graphics.Rect;
 import android.net.Uri;
+import android.os.Bundle;
 import android.os.Handler;
 import android.os.IBinder;
 import android.os.Message;
@@ -156,6 +157,7 @@ public abstract class TvInputService extends Service {
         private boolean mOverlayViewEnabled;
         private IBinder mWindowToken;
         private Rect mOverlayFrame;
+        private ITvInputSessionCallback mSessionCallback;
 
         public TvInputSessionImpl() {
             mWindowManager = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
@@ -188,6 +190,52 @@ public abstract class TvInputService extends Service {
         }
 
         /**
+         * Dispatches an event to the application using this session.
+         *
+         * @param eventType The type of the event.
+         * @param eventArgs Optional arguments of the event.
+         * @hide
+         */
+        public void dispatchSessionEvent(final String eventType, final Bundle eventArgs) {
+            if (eventType == null) {
+                throw new IllegalArgumentException("eventType should not be null.");
+            }
+            mHandler.post(new Runnable() {
+                @Override
+                public void run() {
+                    try {
+                        if (DEBUG) Log.d(TAG, "dispatchSessionEvent(" + eventType + ")");
+                        mSessionCallback.onSessionEvent(eventType, eventArgs);
+                    } catch (RemoteException e) {
+                        Log.w(TAG, "error in sending event (event=" + eventType + ")");
+                    }
+                }
+            });
+        }
+
+        /**
+         * Sends the change on the size of the video. This is expected to be called at the
+         * beginning of the playback and later when the size has been changed.
+         *
+         * @param width The width of the video.
+         * @param height The height of the video.
+         * @hide
+         */
+        public void dispatchVideoSizeChanged(final int width, final int height) {
+            mHandler.post(new Runnable() {
+                @Override
+                public void run() {
+                    try {
+                        if (DEBUG) Log.d(TAG, "dispatchVideoSizeChanged");
+                        mSessionCallback.onVideoSizeChanged(width, height);
+                    } catch (RemoteException e) {
+                        Log.w(TAG, "error in dispatchVideoSizeChanged");
+                    }
+                }
+            });
+        }
+
+        /**
          * Called when the session is released.
          */
         public abstract void onRelease();
@@ -394,9 +442,7 @@ public abstract class TvInputService extends Service {
                 mWindowManager.removeView(mOverlayView);
                 mOverlayView = null;
             }
-            if (DEBUG) {
-                Log.d(TAG, "create overlay view(" + frame + ")");
-            }
+            if (DEBUG) Log.d(TAG, "create overlay view(" + frame + ")");
             mWindowToken = windowToken;
             mOverlayFrame = frame;
             if (!mOverlayViewEnabled) {
@@ -431,9 +477,7 @@ public abstract class TvInputService extends Service {
          * @param frame A new position of the overlay view.
          */
         void relayoutOverlayView(Rect frame) {
-            if (DEBUG) {
-                Log.d(TAG, "relayout overlay view(" + frame + ")");
-            }
+            if (DEBUG) Log.d(TAG, "relayoutOverlayView(" + frame + ")");
             mOverlayFrame = frame;
             if (!mOverlayViewEnabled || mOverlayView == null) {
                 return;
@@ -449,9 +493,7 @@ public abstract class TvInputService extends Service {
          * Removes the current overlay view.
          */
         void removeOverlayView(boolean clearWindowToken) {
-            if (DEBUG) {
-                Log.d(TAG, "remove overlay view(" + mOverlayView + ")");
-            }
+            if (DEBUG) Log.d(TAG, "removeOverlayView(" + mOverlayView + ")");
             if (clearWindowToken) {
                 mWindowToken = null;
                 mOverlayFrame = null;
@@ -498,6 +540,10 @@ public abstract class TvInputService extends Service {
             mOverlayView.getViewRootImpl().dispatchInputEvent(event, receiver);
             return Session.DISPATCH_IN_PROGRESS;
         }
+
+        private void setSessionCallback(ITvInputSessionCallback callback) {
+            mSessionCallback = callback;
+        }
     }
 
     private final class ServiceHandler extends Handler {
@@ -517,6 +563,7 @@ public abstract class TvInputService extends Service {
                             // Failed to create a session.
                             cb.onSessionCreated(null);
                         } else {
+                            sessionImpl.setSessionCallback(cb);
                             ITvInputSession stub = new ITvInputSessionWrapper(TvInputService.this,
                                     sessionImpl, channel);
                             cb.onSessionCreated(stub);
diff --git a/core/java/android/tv/TvView.java b/core/java/android/tv/TvView.java
index 59b6386..2d31701 100644
--- a/core/java/android/tv/TvView.java
+++ b/core/java/android/tv/TvView.java
@@ -18,6 +18,7 @@ package android.tv;
 
 import android.content.Context;
 import android.graphics.Rect;
+import android.os.Bundle;
 import android.os.Handler;
 import android.text.TextUtils;
 import android.tv.TvInputManager.Session;
@@ -379,5 +380,23 @@ public class TvView extends SurfaceView {
                 mExternalCallback.onSessionReleased(session);
             }
         }
+
+        @Override
+        public void onVideoSizeChanged(Session session, int width, int height) {
+            if (DEBUG) {
+                Log.d(TAG, "onVideoSizeChanged(" + width + ", " + height + ")");
+            }
+            if (mExternalCallback != null) {
+                mExternalCallback.onVideoSizeChanged(session, width, height);
+            }
+        }
+
+        @Override
+        public void onSessionEvent(TvInputManager.Session session, String eventType,
+                Bundle eventArgs) {
+            if (mExternalCallback != null) {
+                mExternalCallback.onSessionEvent(session, eventType, eventArgs);
+            }
+        }
     }
 }