MediaSession2: Pull out MediaSession2CallbackStub (b41bfb59) · Commits · e / os / android_frameworks_av

packages/MediaComponents/src/com/android/media/MediaController2Impl.java

+11 −203

Original line number	Diff line number	Diff line
		@@ -26,7 +26,6 @@ import android.media.MediaController2.PlaybackInfo;
		import android.media.MediaItem2;
		import android.media.MediaSession2;
		import android.media.MediaSession2.Command;
		import android.media.MediaSession2.CommandButton;
		import android.media.MediaSession2.CommandGroup;
		import android.media.MediaController2;
		import android.media.MediaController2.ControllerCallback;
		@@ -44,9 +43,6 @@ import android.os.ResultReceiver;
		import android.support.annotation.GuardedBy;
		import android.util.Log;

		import com.android.media.MediaSession2Impl.CommandButtonImpl;

		import java.lang.ref.WeakReference;
		import java.util.ArrayList;
		import java.util.List;
		import java.util.concurrent.Executor;
		@@ -223,6 +219,10 @@ public class MediaController2Impl implements MediaController2Provider {
		return mContext;
		}

		MediaController2 getInstance() {
		return mInstance;
		}

		@Override
		public SessionToken2 getSessionToken_impl() {
		return mToken;
		@@ -503,10 +503,7 @@ public class MediaController2Impl implements MediaController2Provider {
		sendTransportControlCommand(MediaSession2.COMMAND_CODE_PLAYBACK_SET_PLAYLIST_PARAMS, args);
		}

		///////////////////////////////////////////////////
		// Protected or private methods
		///////////////////////////////////////////////////
		private void pushPlaybackStateChanges(final PlaybackState2 state) {
		void pushPlaybackStateChanges(final PlaybackState2 state) {
		synchronized (mLock) {
		mPlaybackState = state;
		}
		@@ -518,7 +515,7 @@ public class MediaController2Impl implements MediaController2Provider {
		});
		}

		private void pushPlaylistParamsChanges(final PlaylistParams params) {
		void pushPlaylistParamsChanges(final PlaylistParams params) {
		synchronized (mLock) {
		mPlaylistParams = params;
		}
		@@ -530,7 +527,7 @@ public class MediaController2Impl implements MediaController2Provider {
		});
		}

		private void pushPlaybackInfoChanges(final PlaybackInfo info) {
		void pushPlaybackInfoChanges(final PlaybackInfo info) {
		synchronized (mLock) {
		mPlaybackInfo = info;
		}
		@@ -542,7 +539,7 @@ public class MediaController2Impl implements MediaController2Provider {
		});
		}

		private void pushPlaylistChanges(final List<Bundle> list) {
		void pushPlaylistChanges(final List<Bundle> list) {
		final List<MediaItem2> playlist = new ArrayList<>();
		for (int i = 0; i < list.size(); i++) {
		MediaItem2 item = MediaItem2.fromBundle(mContext, list.get(i));
		@@ -563,7 +560,7 @@ public class MediaController2Impl implements MediaController2Provider {
		}

		// Should be used without a lock to prevent potential deadlock.
		private void onConnectedNotLocked(IMediaSession2 sessionBinder,
		void onConnectedNotLocked(IMediaSession2 sessionBinder,
		final CommandGroup commandGroup, final PlaybackState2 state, final PlaybackInfo info,
		final PlaylistParams params, final List<MediaItem2> playlist, final int ratingType,
		final PendingIntent sessionActivity) {
		@@ -624,7 +621,7 @@ public class MediaController2Impl implements MediaController2Provider {
		}
		}

		private void onCustomCommand(final Command command, final Bundle args,
		void onCustomCommand(final Command command, final Bundle args,
		final ResultReceiver receiver) {
		if (DEBUG) {
		Log.d(TAG, "onCustomCommand cmd=" + command);
		@@ -635,195 +632,6 @@ public class MediaController2Impl implements MediaController2Provider {
		});
		}

		// TODO(jaewan): Pull out this from the controller2, and rename it to the MediaController2Stub
		// or MediaBrowser2Stub.
		static class MediaSession2CallbackStub extends IMediaSession2Callback.Stub {
		private final WeakReference<MediaController2Impl> mController;

		private MediaSession2CallbackStub(MediaController2Impl controller) {
		mController = new WeakReference<>(controller);
		}

		private MediaController2Impl getController() throws IllegalStateException {
		final MediaController2Impl controller = mController.get();
		if (controller == null) {
		throw new IllegalStateException("Controller is released");
		}
		return controller;
		}

		// TODO(jaewan): Refactor code to get rid of these pattern.
		private MediaBrowser2Impl getBrowser() throws IllegalStateException {
		final MediaController2Impl controller = getController();
		if (controller instanceof MediaBrowser2Impl) {
		return (MediaBrowser2Impl) controller;
		}
		return null;
		}

		public void destroy() {
		mController.clear();
		}

		@Override
		public void onPlaybackStateChanged(Bundle state) throws RuntimeException {
		final MediaController2Impl controller;
		try {
		controller = getController();
		} catch (IllegalStateException e) {
		Log.w(TAG, "Don't fail silently here. Highly likely a bug");
		return;
		}
		controller.pushPlaybackStateChanges(
		PlaybackState2.fromBundle(controller.getContext(), state));
		}

		@Override
		public void onPlaylistChanged(List<Bundle> playlist) throws RuntimeException {
		final MediaController2Impl controller;
		try {
		controller = getController();
		} catch (IllegalStateException e) {
		Log.w(TAG, "Don't fail silently here. Highly likely a bug");
		return;
		}
		if (playlist == null) {
		return;
		}
		controller.pushPlaylistChanges(playlist);
		}

		@Override
		public void onPlaylistParamsChanged(Bundle params) throws RuntimeException {
		final MediaController2Impl controller;
		try {
		controller = getController();
		} catch (IllegalStateException e) {
		Log.w(TAG, "Don't fail silently here. Highly likely a bug");
		return;
		}
		controller.pushPlaylistParamsChanges(
		PlaylistParams.fromBundle(controller.getContext(), params));
		}

		@Override
		public void onPlaybackInfoChanged(Bundle playbackInfo) throws RuntimeException {
		if (DEBUG) {
		Log.d(TAG, "onPlaybackInfoChanged");
		}
		final MediaController2Impl controller;
		try {
		controller = getController();
		} catch (IllegalStateException e) {
		Log.w(TAG, "Don't fail silently here. Highly likely a bug");
		return;
		}
		controller.pushPlaybackInfoChanges(
		PlaybackInfoImpl.fromBundle(controller.getContext(), playbackInfo));
		}

		@Override
		public void onConnected(IMediaSession2 sessionBinder, Bundle commandGroup,
		Bundle playbackState, Bundle playbackInfo, Bundle playlistParams, List<Bundle>
		playlist, int ratingType, PendingIntent sessionActivity) {
		final MediaController2Impl controller = mController.get();
		if (controller == null) {
		if (DEBUG) {
		Log.d(TAG, "onConnected after MediaController2.close()");
		}
		return;
		}
		final Context context = controller.getContext();
		List<MediaItem2> list = new ArrayList<>();
		for (int i = 0; i < playlist.size(); i++) {
		MediaItem2 item = MediaItem2.fromBundle(context, playlist.get(i));
		if (item != null) {
		list.add(item);
		}
		}
		controller.onConnectedNotLocked(sessionBinder,
		CommandGroup.fromBundle(context, commandGroup),
		PlaybackState2.fromBundle(context, playbackState),
		PlaybackInfoImpl.fromBundle(context, playbackInfo),
		PlaylistParams.fromBundle(context, playlistParams),
		list, ratingType, sessionActivity);
		}

		@Override
		public void onDisconnected() {
		final MediaController2Impl controller = mController.get();
		if (controller == null) {
		if (DEBUG) {
		Log.d(TAG, "onDisconnected after MediaController2.close()");
		}
		return;
		}
		controller.mInstance.close();
		}

		@Override
		public void onGetRootResult(Bundle rootHints, String rootMediaId, Bundle rootExtra)
		throws RuntimeException {
		final MediaBrowser2Impl browser;
		try {
		browser = getBrowser();
		} catch (IllegalStateException e) {
		Log.w(TAG, "Don't fail silently here. Highly likely a bug");
		return;
		}
		if (browser == null) {
		// TODO(jaewan): Revisit here. Could be a bug
		return;
		}
		browser.onGetRootResult(rootHints, rootMediaId, rootExtra);
		}

		@Override
		public void onCustomLayoutChanged(List<Bundle> commandButtonlist) {
		if (commandButtonlist == null) {
		// Illegal call. Ignore
		return;
		}
		// TODO(jaewan): Fix here. It's controller feature so shouldn't use browser
		final MediaBrowser2Impl browser;
		try {
		browser = getBrowser();
		} catch (IllegalStateException e) {
		Log.w(TAG, "Don't fail silently here. Highly likely a bug");
		return;
		}
		if (browser == null) {
		// TODO(jaewan): Revisit here. Could be a bug
		return;
		}
		List<CommandButton> layout = new ArrayList<>();
		for (int i = 0; i < commandButtonlist.size(); i++) {
		CommandButton button = CommandButtonImpl.fromBundle(
		browser.getContext(), commandButtonlist.get(i));
		if (button != null) {
		layout.add(button);
		}
		}
		browser.onCustomLayoutChanged(layout);
		}

		@Override
		public void sendCustomCommand(Bundle commandBundle, Bundle args, ResultReceiver receiver) {
		final MediaController2Impl controller;
		try {
		controller = getController();
		} catch (IllegalStateException e) {
		Log.w(TAG, "Don't fail silently here. Highly likely a bug");
		return;
		}
		Command command = Command.fromBundle(controller.getContext(), commandBundle);
		if (command == null) {
		return;
		}
		controller.onCustomCommand(command, args, receiver);
		}
		}

		// This will be called on the main thread.
		private class SessionServiceConnection implements ServiceConnection {
		@Override

packages/MediaComponents/src/com/android/media/MediaSession2CallbackStub.java

0 → 100644

+226 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright 2018 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 com.android.media;

		import android.app.PendingIntent;
		import android.content.Context;
		import android.media.MediaItem2;
		import android.media.MediaSession2.Command;
		import android.media.MediaSession2.CommandButton;
		import android.media.MediaSession2.CommandGroup;
		import android.media.MediaSession2.PlaylistParams;
		import android.media.PlaybackState2;
		import android.os.Bundle;
		import android.os.ResultReceiver;
		import android.util.Log;

		import com.android.media.MediaController2Impl.PlaybackInfoImpl;
		import com.android.media.MediaSession2Impl.CommandButtonImpl;

		import java.lang.ref.WeakReference;
		import java.util.ArrayList;
		import java.util.List;

		public class MediaSession2CallbackStub extends IMediaSession2Callback.Stub {
		private static final String TAG = "MS2CallbackStub";
		private static final boolean DEBUG = true; // TODO(jaewan): Change

		private final WeakReference<MediaController2Impl> mController;

		MediaSession2CallbackStub(MediaController2Impl controller) {
		mController = new WeakReference<>(controller);
		}

		private MediaController2Impl getController() throws IllegalStateException {
		final MediaController2Impl controller = mController.get();
		if (controller == null) {
		throw new IllegalStateException("Controller is released");
		}
		return controller;
		}

		// TODO(jaewan): Refactor code to get rid of these pattern.
		private MediaBrowser2Impl getBrowser() throws IllegalStateException {
		final MediaController2Impl controller = getController();
		if (controller instanceof MediaBrowser2Impl) {
		return (MediaBrowser2Impl) controller;
		}
		return null;
		}

		public void destroy() {
		mController.clear();
		}

		@Override
		public void onPlaybackStateChanged(Bundle state) throws RuntimeException {
		final MediaController2Impl controller;
		try {
		controller = getController();
		} catch (IllegalStateException e) {
		Log.w(TAG, "Don't fail silently here. Highly likely a bug");
		return;
		}
		controller.pushPlaybackStateChanges(
		PlaybackState2.fromBundle(controller.getContext(), state));
		}

		@Override
		public void onPlaylistChanged(List<Bundle> playlist) throws RuntimeException {
		final MediaController2Impl controller;
		try {
		controller = getController();
		} catch (IllegalStateException e) {
		Log.w(TAG, "Don't fail silently here. Highly likely a bug");
		return;
		}
		if (playlist == null) {
		return;
		}
		controller.pushPlaylistChanges(playlist);
		}

		@Override
		public void onPlaylistParamsChanged(Bundle params) throws RuntimeException {
		final MediaController2Impl controller;
		try {
		controller = getController();
		} catch (IllegalStateException e) {
		Log.w(TAG, "Don't fail silently here. Highly likely a bug");
		return;
		}
		controller.pushPlaylistParamsChanges(
		PlaylistParams.fromBundle(controller.getContext(), params));
		}

		@Override
		public void onPlaybackInfoChanged(Bundle playbackInfo) throws RuntimeException {
		if (DEBUG) {
		Log.d(TAG, "onPlaybackInfoChanged");
		}
		final MediaController2Impl controller;
		try {
		controller = getController();
		} catch (IllegalStateException e) {
		Log.w(TAG, "Don't fail silently here. Highly likely a bug");
		return;
		}
		controller.pushPlaybackInfoChanges(
		PlaybackInfoImpl.fromBundle(controller.getContext(), playbackInfo));
		}

		@Override
		public void onConnected(IMediaSession2 sessionBinder, Bundle commandGroup,
		Bundle playbackState, Bundle playbackInfo, Bundle playlistParams, List<Bundle>
		playlist, int ratingType, PendingIntent sessionActivity) {
		final MediaController2Impl controller = mController.get();
		if (controller == null) {
		if (DEBUG) {
		Log.d(TAG, "onConnected after MediaController2.close()");
		}
		return;
		}
		final Context context = controller.getContext();
		List<MediaItem2> list = new ArrayList<>();
		for (int i = 0; i < playlist.size(); i++) {
		MediaItem2 item = MediaItem2.fromBundle(context, playlist.get(i));
		if (item != null) {
		list.add(item);
		}
		}
		controller.onConnectedNotLocked(sessionBinder,
		CommandGroup.fromBundle(context, commandGroup),
		PlaybackState2.fromBundle(context, playbackState),
		PlaybackInfoImpl.fromBundle(context, playbackInfo),
		PlaylistParams.fromBundle(context, playlistParams),
		list, ratingType, sessionActivity);
		}

		@Override
		public void onDisconnected() {
		final MediaController2Impl controller = mController.get();
		if (controller == null) {
		if (DEBUG) {
		Log.d(TAG, "onDisconnected after MediaController2.close()");
		}
		return;
		}
		controller.getInstance().close();
		}

		@Override
		public void onGetRootResult(Bundle rootHints, String rootMediaId, Bundle rootExtra)
		throws RuntimeException {
		final MediaBrowser2Impl browser;
		try {
		browser = getBrowser();
		} catch (IllegalStateException e) {
		Log.w(TAG, "Don't fail silently here. Highly likely a bug");
		return;
		}
		if (browser == null) {
		// TODO(jaewan): Revisit here. Could be a bug
		return;
		}
		browser.onGetRootResult(rootHints, rootMediaId, rootExtra);
		}

		@Override
		public void onCustomLayoutChanged(List<Bundle> commandButtonlist) {
		if (commandButtonlist == null) {
		// Illegal call. Ignore
		return;
		}
		// TODO(jaewan): Fix here. It's controller feature so shouldn't use browser
		final MediaBrowser2Impl browser;
		try {
		browser = getBrowser();
		} catch (IllegalStateException e) {
		Log.w(TAG, "Don't fail silently here. Highly likely a bug");
		return;
		}
		if (browser == null) {
		// TODO(jaewan): Revisit here. Could be a bug
		return;
		}
		List<CommandButton> layout = new ArrayList<>();
		for (int i = 0; i < commandButtonlist.size(); i++) {
		CommandButton button = CommandButtonImpl.fromBundle(
		browser.getContext(), commandButtonlist.get(i));
		if (button != null) {
		layout.add(button);
		}
		}
		browser.onCustomLayoutChanged(layout);
		}

		@Override
		public void sendCustomCommand(Bundle commandBundle, Bundle args, ResultReceiver receiver) {
		final MediaController2Impl controller;
		try {
		controller = getController();
		} catch (IllegalStateException e) {
		Log.w(TAG, "Don't fail silently here. Highly likely a bug");
		return;
		}
		Command command = Command.fromBundle(controller.getContext(), commandBundle);
		if (command == null) {
		return;
		}
		controller.onCustomCommand(command, args, receiver);
		}
		}