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/*
* Copyright 2019 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;
import static com.android.internal.util.function.pooled.PooledLambda.obtainMessage;
import android.app.Service;
import android.content.Intent;
import android.os.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.os.RemoteException;
import android.util.Log;
/**
* @hide
*/
public abstract class MediaRoute2ProviderService extends Service {
private static final String TAG = "MediaRouteProviderSrv";
public static final String SERVICE_INTERFACE = "android.media.MediaRoute2ProviderService";
private final Handler mHandler;
private ProviderStub mStub;
private IMediaRoute2Callback mCallback;
public MediaRoute2ProviderService() {
mHandler = new Handler(Looper.getMainLooper());
}
@Override
public IBinder onBind(Intent intent) {
if (SERVICE_INTERFACE.equals(intent.getAction())) {
if (mStub == null) {
mStub = new ProviderStub();
}
return mStub;
}
return null;
}
/**
* Called when selectRoute is called on a route of the provider.
*
* @param uid The target application uid
* @param routeId The id of the target route
*/
public abstract void onSelect(int uid, String routeId);
/**
* Updates provider info from selected route and appliation.
*
* TODO: When provider descriptor is defined, this should update the descriptor correctly.
*
* @param uid
* @param routeId
*/
public void updateProvider(int uid, String routeId) {
if (mCallback != null) {
try {
//TODO: After publishState() is fully implemented, delete this.
mCallback.onRouteSelected(uid, routeId);
} catch (RemoteException ex) {
Log.d(TAG, "Failed to update provider");
}
}
publishState();
}
void setCallback(IMediaRoute2Callback callback) {
mCallback = callback;
publishState();
}
void publishState() {
//TODO: Send provider descriptor to the MediaRouterService
}
final class ProviderStub extends IMediaRoute2Provider.Stub {
ProviderStub() { }
@Override
public void setCallback(IMediaRoute2Callback callback) {
mHandler.sendMessage(obtainMessage(MediaRoute2ProviderService::setCallback,
MediaRoute2ProviderService.this, callback));
}
@Override
public void selectRoute(int uid, String id) {
mHandler.sendMessage(obtainMessage(MediaRoute2ProviderService::onSelect,
MediaRoute2ProviderService.this, uid, id));
}
}
}
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