MediaRouter: add volume control functionality into MR2 (5a8dedcf) · Commits · e / os / android_frameworks_base

media/java/android/media/IMediaRoute2Provider.aidl

+2 −0

Original line number	Diff line number	Diff line
		@@ -27,4 +27,6 @@ oneway interface IMediaRoute2Provider {
		void selectRoute(String packageName, String id);
		void unselectRoute(String packageName, String id);
		void notifyControlRequestSent(String id, in Intent request);
		void requestSetVolume(String id, int volume);
		void requestUpdateVolume(String id, int delta);
		}

media/java/android/media/IMediaRouterService.aidl

+7 −0

Original line number	Diff line number	Diff line
		@@ -46,6 +46,8 @@ interface IMediaRouterService {
		void registerClient2(IMediaRouter2Client client, String packageName);
		void unregisterClient2(IMediaRouter2Client client);
		void sendControlRequest(IMediaRouter2Client client, in MediaRoute2Info route, in Intent request);
		void requestSetVolume2(IMediaRouter2Client client, in MediaRoute2Info route, int volume);
		void requestUpdateVolume2(IMediaRouter2Client client, in MediaRoute2Info route, int direction);
		/**
		* Changes the selected route of the client.
		*
		@@ -66,4 +68,9 @@ interface IMediaRouterService {
		*/
		void selectClientRoute2(IMediaRouter2Manager manager, String packageName,
		in @nullable MediaRoute2Info route);

		void requestSetVolume2Manager(IMediaRouter2Manager manager,
		in MediaRoute2Info route, int volume);
		void requestUpdateVolume2Manager(IMediaRouter2Manager manager,
		in MediaRoute2Info route, int direction);
		}

media/java/android/media/MediaRoute2ProviderService.java

+26 −0

Original line number	Diff line number	Diff line
		@@ -80,6 +80,20 @@ public abstract class MediaRoute2ProviderService extends Service {
		//TODO: Discuss what to use for request (e.g., Intent? Request class?)
		public abstract void onControlRequest(String routeId, Intent request);

		/**
		* Called when requestSetVolume is called on a route of the provider
		* @param routeId the id of the route
		* @param volume the target volume
		*/
		public abstract void onSetVolume(String routeId, int volume);

		/**
		* Called when requestUpdateVolume is called on a route of the provider
		* @param routeId id of the route
		* @param delta the delta to add to the current volume
		*/
		public abstract void onUpdateVolume(String routeId, int delta);

		/**
		* Updates provider info and publishes routes
		*/
		@@ -130,5 +144,17 @@ public abstract class MediaRoute2ProviderService extends Service {
		mHandler.sendMessage(obtainMessage(MediaRoute2ProviderService::onControlRequest,
		MediaRoute2ProviderService.this, id, request));
		}

		@Override
		public void requestSetVolume(String id, int volume) {
		mHandler.sendMessage(obtainMessage(MediaRoute2ProviderService::onSetVolume,
		MediaRoute2ProviderService.this, id, volume));
		}

		@Override
		public void requestUpdateVolume(String id, int delta) {
		mHandler.sendMessage(obtainMessage(MediaRoute2ProviderService::onUpdateVolume,
		MediaRoute2ProviderService.this, id, delta));
		}
		}
		}

media/java/android/media/MediaRouter2.java

+67 −0

Original line number	Diff line number	Diff line
		@@ -265,6 +265,54 @@ public class MediaRouter2 {
		}
		}

		/**
		* Requests a volume change for the route asynchronously.
		* <p>
		* It may have no effect if the route is currently not selected.
		* </p>
		*
		* @param volume The new volume value between 0 and {@link MediaRoute2Info#getVolumeMax}.
		*/
		public void requestSetVolume(@NonNull MediaRoute2Info route, int volume) {
		Objects.requireNonNull(route, "route must not be null");

		Client client;
		synchronized (sLock) {
		client = mClient;
		}
		if (client != null) {
		try {
		mMediaRouterService.requestSetVolume2(client, route, volume);
		} catch (RemoteException ex) {
		Log.e(TAG, "Unable to send control request.", ex);
		}
		}
		}

		/**
		* Requests an incremental volume update for the route asynchronously.
		* <p>
		* It may have no effect if the route is currently not selected.
		* </p>
		*
		* @param delta The delta to add to the current volume.
		*/
		public void requestUpdateVolume(@NonNull MediaRoute2Info route, int delta) {
		Objects.requireNonNull(route, "route must not be null");

		Client client;
		synchronized (sLock) {
		client = mClient;
		}
		if (client != null) {
		try {
		mMediaRouterService.requestUpdateVolume2(client, route, delta);
		} catch (RemoteException ex) {
		Log.e(TAG, "Unable to send control request.", ex);
		}
		}
		}

		@GuardedBy("mCallbackRecords")
		private int findCallbackRecordIndexLocked(Callback callback) {
		final int count = mCallbackRecords.size();
		@@ -321,10 +369,21 @@ public class MediaRouter2 {
		if (!route.supportsControlCategory(controlCategories)) {
		continue;
		}
		MediaRoute2Info preRoute = findRouteById(route.getId());
		if (!route.equals(preRoute)) {
		notifyRouteChanged(route);
		}
		outRoutes.add(route);
		}
		}

		MediaRoute2Info findRouteById(String id) {
		for (MediaRoute2Info route : mRoutes) {
		if (route.getId().equals(id)) return route;
		}
		return null;
		}

		void notifyRouteListChanged(List<MediaRoute2Info> routes) {
		for (CallbackRecord record: mCallbackRecords) {
		record.mExecutor.execute(
		@@ -332,10 +391,18 @@ public class MediaRouter2 {
		}
		}

		void notifyRouteChanged(MediaRoute2Info route) {
		for (CallbackRecord record: mCallbackRecords) {
		record.mExecutor.execute(
		() -> record.mCallback.onRouteChanged(route));
		}
		}

		/**
		* Interface for receiving events about media routing changes.
		*/
		public static class Callback {
		//TODO: clean up these callbacks
		/**
		* Called when a route is added.
		*/

media/java/android/media/MediaRouter2Manager.java

+48 −0

Original line number	Diff line number	Diff line
		@@ -234,6 +234,54 @@ public class MediaRouter2Manager {
		}
		}

		/**
		* Requests a volume change for the route asynchronously.
		* <p>
		* It may have no effect if the route is currently not selected.
		* </p>
		*
		* @param volume The new volume value between 0 and {@link MediaRoute2Info#getVolumeMax}.
		*/
		public void requestSetVolume(@NonNull MediaRoute2Info route, int volume) {
		Objects.requireNonNull(route, "route must not be null");

		Client client;
		synchronized (sLock) {
		client = mClient;
		}
		if (client != null) {
		try {
		mMediaRouterService.requestSetVolume2Manager(client, route, volume);
		} catch (RemoteException ex) {
		Log.e(TAG, "Unable to send control request.", ex);
		}
		}
		}

		/**
		* Requests an incremental volume update for the route asynchronously.
		* <p>
		* It may have no effect if the route is currently not selected.
		* </p>
		*
		* @param delta The delta to add to the current volume.
		*/
		public void requestUpdateVolume(@NonNull MediaRoute2Info route, int delta) {
		Objects.requireNonNull(route, "route must not be null");

		Client client;
		synchronized (sLock) {
		client = mClient;
		}
		if (client != null) {
		try {
		mMediaRouterService.requestUpdateVolume2Manager(client, route, delta);
		} catch (RemoteException ex) {
		Log.e(TAG, "Unable to send control request.", ex);
		}
		}
		}

		int findProviderIndex(MediaRoute2ProviderInfo provider) {
		final int count = mProviders.size();
		for (int i = 0; i < count; i++) {