/* * Copyright (C) 2014 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package android.media.tv; import android.content.Context; import android.graphics.Rect; import android.net.Uri; import android.os.Bundle; import android.os.IBinder; import android.os.Looper; import android.os.Message; import android.util.Log; import android.view.InputChannel; import android.view.InputEvent; import android.view.InputEventReceiver; import android.view.Surface; import com.android.internal.os.HandlerCaller; import com.android.internal.os.SomeArgs; /** * Implements the internal ITvInputSession interface to convert incoming calls on to it back to * calls on the public TvInputSession interface, scheduling them on the main thread of the process. * * @hide */ public class ITvInputSessionWrapper extends ITvInputSession.Stub implements HandlerCaller.Callback { private static final String TAG = "TvInputSessionWrapper"; private static final int MESSAGE_HANDLING_DURATION_THRESHOLD_MILLIS = 50; private static final int MESSAGE_TUNE_DURATION_THRESHOLD_MILLIS = 2000; private static final int DO_RELEASE = 1; private static final int DO_SET_MAIN = 2; private static final int DO_SET_SURFACE = 3; private static final int DO_DISPATCH_SURFACE_CHANGED = 4; private static final int DO_SET_STREAM_VOLUME = 5; private static final int DO_TUNE = 6; private static final int DO_SET_CAPTION_ENABLED = 7; private static final int DO_SELECT_TRACK = 8; private static final int DO_APP_PRIVATE_COMMAND = 9; private static final int DO_CREATE_OVERLAY_VIEW = 10; private static final int DO_RELAYOUT_OVERLAY_VIEW = 11; private static final int DO_REMOVE_OVERLAY_VIEW = 12; private static final int DO_REQUEST_UNBLOCK_CONTENT = 13; private final HandlerCaller mCaller; private TvInputService.Session mTvInputSessionImpl; private InputChannel mChannel; private TvInputEventReceiver mReceiver; public ITvInputSessionWrapper(Context context, TvInputService.Session sessionImpl, InputChannel channel) { mCaller = new HandlerCaller(context, null, this, true /* asyncHandler */); mTvInputSessionImpl = sessionImpl; mChannel = channel; if (channel != null) { mReceiver = new TvInputEventReceiver(channel, context.getMainLooper()); } } @Override public void executeMessage(Message msg) { if (mTvInputSessionImpl == null) { return; } long startTime = System.currentTimeMillis(); switch (msg.what) { case DO_RELEASE: { mTvInputSessionImpl.release(); mTvInputSessionImpl = null; if (mReceiver != null) { mReceiver.dispose(); mReceiver = null; } if (mChannel != null) { mChannel.dispose(); mChannel = null; } break; } case DO_SET_MAIN: { mTvInputSessionImpl.setMain((Boolean) msg.obj); break; } case DO_SET_SURFACE: { mTvInputSessionImpl.setSurface((Surface) msg.obj); break; } case DO_DISPATCH_SURFACE_CHANGED: { SomeArgs args = (SomeArgs) msg.obj; mTvInputSessionImpl.dispatchSurfaceChanged(args.argi1, args.argi2, args.argi3); args.recycle(); break; } case DO_SET_STREAM_VOLUME: { mTvInputSessionImpl.setStreamVolume((Float) msg.obj); break; } case DO_TUNE: { SomeArgs args = (SomeArgs) msg.obj; mTvInputSessionImpl.tune((Uri) args.arg1, (Bundle) args.arg2); args.recycle(); break; } case DO_SET_CAPTION_ENABLED: { mTvInputSessionImpl.setCaptionEnabled((Boolean) msg.obj); break; } case DO_SELECT_TRACK: { SomeArgs args = (SomeArgs) msg.obj; mTvInputSessionImpl.selectTrack((Integer) args.arg1, (String) args.arg2); args.recycle(); break; } case DO_APP_PRIVATE_COMMAND: { SomeArgs args = (SomeArgs) msg.obj; mTvInputSessionImpl.appPrivateCommand((String) args.arg1, (Bundle) args.arg2); args.recycle(); break; } case DO_CREATE_OVERLAY_VIEW: { SomeArgs args = (SomeArgs) msg.obj; mTvInputSessionImpl.createOverlayView((IBinder) args.arg1, (Rect) args.arg2); args.recycle(); break; } case DO_RELAYOUT_OVERLAY_VIEW: { mTvInputSessionImpl.relayoutOverlayView((Rect) msg.obj); break; } case DO_REMOVE_OVERLAY_VIEW: { mTvInputSessionImpl.removeOverlayView(true); break; } case DO_REQUEST_UNBLOCK_CONTENT: { mTvInputSessionImpl.unblockContent((String) msg.obj); break; } default: { Log.w(TAG, "Unhandled message code: " + msg.what); break; } } long duration = System.currentTimeMillis() - startTime; if (duration > MESSAGE_HANDLING_DURATION_THRESHOLD_MILLIS) { Log.w(TAG, "Handling message (" + msg.what + ") took too long time (duration=" + duration + "ms)"); if (msg.what == DO_TUNE && duration > MESSAGE_TUNE_DURATION_THRESHOLD_MILLIS) { throw new RuntimeException("Too much time to handle tune request. (" + duration + "ms > " + MESSAGE_TUNE_DURATION_THRESHOLD_MILLIS + "ms) " + "Consider handling the tune request in a separate thread."); } } } @Override public void release() { mTvInputSessionImpl.scheduleOverlayViewCleanup(); mCaller.executeOrSendMessage(mCaller.obtainMessage(DO_RELEASE)); } @Override public void setMain(boolean isMain) { mCaller.executeOrSendMessage(mCaller.obtainMessageO(DO_SET_MAIN, isMain)); } @Override public void setSurface(Surface surface) { mCaller.executeOrSendMessage(mCaller.obtainMessageO(DO_SET_SURFACE, surface)); } @Override public void dispatchSurfaceChanged(int format, int width, int height) { mCaller.executeOrSendMessage(mCaller.obtainMessageIIII(DO_DISPATCH_SURFACE_CHANGED, format, width, height, 0)); } @Override public final void setVolume(float volume) { mCaller.executeOrSendMessage(mCaller.obtainMessageO(DO_SET_STREAM_VOLUME, volume)); } @Override public void tune(Uri channelUri, Bundle params) { // Clear the pending tune requests. mCaller.removeMessages(DO_TUNE); mCaller.executeOrSendMessage(mCaller.obtainMessageOO(DO_TUNE, channelUri, params)); } @Override public void setCaptionEnabled(boolean enabled) { mCaller.executeOrSendMessage(mCaller.obtainMessageO(DO_SET_CAPTION_ENABLED, enabled)); } @Override public void selectTrack(int type, String trackId) { mCaller.executeOrSendMessage(mCaller.obtainMessageOO(DO_SELECT_TRACK, type, trackId)); } @Override public void appPrivateCommand(String action, Bundle data) { mCaller.executeOrSendMessage(mCaller.obtainMessageOO(DO_APP_PRIVATE_COMMAND, action, data)); } @Override public void createOverlayView(IBinder windowToken, Rect frame) { mCaller.executeOrSendMessage(mCaller.obtainMessageOO(DO_CREATE_OVERLAY_VIEW, windowToken, frame)); } @Override public void relayoutOverlayView(Rect frame) { mCaller.executeOrSendMessage(mCaller.obtainMessageO(DO_RELAYOUT_OVERLAY_VIEW, frame)); } @Override public void removeOverlayView() { mCaller.executeOrSendMessage(mCaller.obtainMessage(DO_REMOVE_OVERLAY_VIEW)); } @Override public void requestUnblockContent(String unblockedRating) { mCaller.executeOrSendMessage(mCaller.obtainMessageO( DO_REQUEST_UNBLOCK_CONTENT, unblockedRating)); } private final class TvInputEventReceiver extends InputEventReceiver { public TvInputEventReceiver(InputChannel inputChannel, Looper looper) { super(inputChannel, looper); } @Override public void onInputEvent(InputEvent event) { if (mTvInputSessionImpl == null) { // The session has been finished. finishInputEvent(event, false); return; } int handled = mTvInputSessionImpl.dispatchInputEvent(event, this); if (handled != TvInputManager.Session.DISPATCH_IN_PROGRESS) { finishInputEvent(event, handled == TvInputManager.Session.DISPATCH_HANDLED); } } } }