Merge "Implement methods of MediaPlaylistAgentImpl" into pi-dev (c940e6e7) · Commits · e / os / android_frameworks_av

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

+72 −38

Original line number	Diff line number	Diff line
		@@ -25,14 +25,24 @@ import android.media.MediaMetadata2;
		import android.media.MediaPlaylistAgent;
		import android.media.MediaPlaylistAgent.PlaylistEventCallback;
		import android.media.update.MediaPlaylistAgentProvider;
		import android.util.ArrayMap;
		import android.util.Log;

		import com.android.internal.annotations.GuardedBy;

		import java.util.List;
		import java.util.concurrent.Executor;

		public class MediaPlaylistAgentImpl implements MediaPlaylistAgentProvider {
		private static final String TAG = "MediaPlaylistAgent";

		private final Context mContext;
		private final MediaPlaylistAgent mInstance;

		private final Object mLock = new Object();
		@GuardedBy("mLock")
		private final ArrayMap<PlaylistEventCallback, Executor> mCallbacks = new ArrayMap<>();

		public MediaPlaylistAgentImpl(Context context, MediaPlaylistAgent instance) {
		mContext = context;
		mInstance = instance;
		@@ -46,7 +56,14 @@ public class MediaPlaylistAgentImpl implements MediaPlaylistAgentProvider {
		if (callback == null) {
		throw new IllegalArgumentException("callback shouldn't be null");
		}
		// TODO(jaewan): implement this (b/74090741)

		synchronized (mLock) {
		if (mCallbacks.get(callback) != null) {
		Log.w(TAG, "callback is already added. Ignoring.");
		return;
		}
		mCallbacks.put(callback, executor);
		}
		}

		final public void unregisterPlaylistEventCallback_impl(
		@@ -54,101 +71,118 @@ public class MediaPlaylistAgentImpl implements MediaPlaylistAgentProvider {
		if (callback == null) {
		throw new IllegalArgumentException("callback shouldn't be null");
		}
		// TODO(jaewan): implement this (b/74090741)
		synchronized (mLock) {
		mCallbacks.remove(callback);
		}
		}

		final public void notifyPlaylistChanged_impl() {
		// TODO(jaewan): implement this (b/74090741)
		ArrayMap<PlaylistEventCallback, Executor> callbacks = getCallbacks();
		List<MediaItem2> playlist= mInstance.getPlaylist();
		MediaMetadata2 metadata = mInstance.getPlaylistMetadata();
		for (int i = 0; i < callbacks.size(); i++) {
		final PlaylistEventCallback callback = callbacks.keyAt(i);
		final Executor executor = callbacks.valueAt(i);
		executor.execute(() -> callback.onPlaylistChanged(
		mInstance, playlist, metadata));
		}
		}

		final public void notifyPlaylistMetadataChanged_impl() {
		// TODO(jaewan): implement this (b/74090741)
		ArrayMap<PlaylistEventCallback, Executor> callbacks = getCallbacks();
		for (int i = 0; i < callbacks.size(); i++) {
		final PlaylistEventCallback callback = callbacks.keyAt(i);
		final Executor executor = callbacks.valueAt(i);
		executor.execute(() -> callback.onPlaylistMetadataChanged(
		mInstance, mInstance.getPlaylistMetadata()));
		}
		}

		final public void notifyShuffleModeChanged_impl() {
		// TODO(jaewan): implement this (b/74090741)
		ArrayMap<PlaylistEventCallback, Executor> callbacks = getCallbacks();
		for (int i = 0; i < callbacks.size(); i++) {
		final PlaylistEventCallback callback = callbacks.keyAt(i);
		final Executor executor = callbacks.valueAt(i);
		executor.execute(() -> callback.onShuffleModeChanged(
		mInstance, mInstance.getShuffleMode()));
		}
		}

		final public void notifyRepeatModeChanged_impl() {
		// TODO(jaewan): implement this (b/74090741)
		ArrayMap<PlaylistEventCallback, Executor> callbacks = getCallbacks();
		for (int i = 0; i < callbacks.size(); i++) {
		final PlaylistEventCallback callback = callbacks.keyAt(i);
		final Executor executor = callbacks.valueAt(i);
		executor.execute(() -> callback.onRepeatModeChanged(
		mInstance, mInstance.getRepeatMode()));
		}
		}

		public @Nullable List<MediaItem2> getPlaylist_impl() {
		// TODO(jaewan): implement this (b/74090741)
		// empty implementation
		return null;
		}

		public void setPlaylist_impl(@NonNull List<MediaItem2> list,
		@Nullable MediaMetadata2 metadata) {
		if (list == null) {
		throw new IllegalArgumentException("list shouldn't be null");
		}
		// TODO(jaewan): implement this (b/74090741)
		// empty implementation
		}

		public @Nullable MediaMetadata2 getPlaylistMetadata_impl() {
		// TODO(jaewan): implement this (b/74090741)
		// empty implementation
		return null;
		}

		public void updatePlaylistMetadata_impl(@Nullable MediaMetadata2 metadata) {
		// TODO(jaewan): implement this (b/74090741)
		// empty implementation
		}

		public void addPlaylistItem_impl(int index, @NonNull MediaItem2 item) {
		if (item == null) {
		throw new IllegalArgumentException("item shouldn't be null");
		}
		// TODO(jaewan): implement this (b/74090741)
		// empty implementation
		}

		public void removePlaylistItem_impl(@NonNull MediaItem2 item) {
		if (item == null) {
		throw new IllegalArgumentException("item shouldn't be null");
		}
		// TODO(jaewan): implement this (b/74090741)
		// empty implementation
		}

		public void replacePlaylistItem_impl(int index, @NonNull MediaItem2 item) {
		if (index < 0) {
		throw new IllegalArgumentException("index can not have a negative value");
		}
		if (item == null) {
		throw new IllegalArgumentException("item shouldn't be null");
		}
		// TODO(jaewan): implement this (b/74090741)
		// empty implementation
		}

		public void skipToPlaylistItem_impl(@NonNull MediaItem2 item) {
		if (item == null) {
		throw new IllegalArgumentException("item shouldn't be null");
		}
		// TODO(jaewan): implement this (b/74090741)
		// empty implementation
		}

		public void skipToPreviousItem_impl() {
		// TODO(jaewan): implement this (b/74090741)
		// empty implementation
		}

		public void skipToNextItem_impl() {
		// TODO(jaewan): implement this (b/74090741)
		// empty implementation
		}

		public int getRepeatMode_impl() {
		// TODO(jaewan): implement this (b/74090741)
		return MediaPlaylistAgent.REPEAT_MODE_NONE;
		}

		public void setRepeatMode_impl(int repeatMode) {
		// TODO(jaewan): implement this (b/74090741)
		// empty implementation
		}

		public int getShuffleMode_impl() {
		// TODO(jaewan): implement this (b/74090741)
		// empty implementation
		return MediaPlaylistAgent.SHUFFLE_MODE_NONE;
		}

		public void setShuffleMode_impl(int shuffleMode) {
		// TODO(jaewan): implement this (b/74090741)
		// empty implementation
		}

		private ArrayMap<PlaylistEventCallback, Executor> getCallbacks() {
		ArrayMap<PlaylistEventCallback, Executor> callbacks = new ArrayMap<>();
		synchronized (mLock) {
		callbacks.putAll(mCallbacks);
		}
		return callbacks;
		}
		}