| /* |
| * Copyright (C) 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 com.android.settings.media; |
| |
| import static android.media.AudioManager.STREAM_DEVICES_CHANGED_ACTION; |
| |
| import android.content.BroadcastReceiver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.media.AudioManager; |
| import android.media.session.MediaController; |
| import android.media.session.MediaSessionManager; |
| import android.net.Uri; |
| import android.text.TextUtils; |
| import android.util.Log; |
| |
| import androidx.annotation.Nullable; |
| |
| import com.android.settings.bluetooth.Utils; |
| import com.android.settings.slices.SliceBackgroundWorker; |
| import com.android.settingslib.bluetooth.BluetoothCallback; |
| import com.android.settingslib.bluetooth.LocalBluetoothManager; |
| import com.android.settingslib.media.LocalMediaManager; |
| import com.android.settingslib.media.MediaDevice; |
| import com.android.settingslib.utils.ThreadUtils; |
| |
| import com.google.common.annotations.VisibleForTesting; |
| |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.concurrent.CopyOnWriteArrayList; |
| |
| /** |
| * Listener for background change from {@code BluetoothCallback} to update media output indicator. |
| */ |
| public class MediaOutputIndicatorWorker extends SliceBackgroundWorker implements BluetoothCallback, |
| LocalMediaManager.DeviceCallback { |
| |
| private static final String TAG = "MediaOutputIndWorker"; |
| private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG); |
| |
| private final DevicesChangedBroadcastReceiver mReceiver; |
| private final Context mContext; |
| private final Collection<MediaDevice> mMediaDevices = new CopyOnWriteArrayList<>(); |
| |
| private LocalBluetoothManager mLocalBluetoothManager; |
| private String mPackageName; |
| |
| @VisibleForTesting |
| LocalMediaManager mLocalMediaManager; |
| |
| public MediaOutputIndicatorWorker(Context context, Uri uri) { |
| super(context, uri); |
| mReceiver = new DevicesChangedBroadcastReceiver(); |
| mContext = context; |
| } |
| |
| @Override |
| protected void onSlicePinned() { |
| mMediaDevices.clear(); |
| mLocalBluetoothManager = Utils.getLocalBtManager(getContext()); |
| if (mLocalBluetoothManager == null) { |
| Log.e(TAG, "Bluetooth is not supported on this device"); |
| return; |
| } |
| final IntentFilter intentFilter = new IntentFilter(STREAM_DEVICES_CHANGED_ACTION); |
| mContext.registerReceiver(mReceiver, intentFilter); |
| mLocalBluetoothManager.getEventManager().registerCallback(this); |
| |
| ThreadUtils.postOnBackgroundThread(() -> { |
| final MediaController controller = getActiveLocalMediaController(); |
| if (controller == null) { |
| mPackageName = null; |
| } else { |
| mPackageName = controller.getPackageName(); |
| } |
| if (mLocalMediaManager == null || !TextUtils.equals(mPackageName, |
| mLocalMediaManager.getPackageName())) { |
| mLocalMediaManager = new LocalMediaManager(mContext, mPackageName, |
| null /* notification */); |
| } |
| mLocalMediaManager.registerCallback(this); |
| mLocalMediaManager.startScan(); |
| }); |
| } |
| |
| @Override |
| protected void onSliceUnpinned() { |
| if (mLocalMediaManager != null) { |
| mLocalMediaManager.unregisterCallback(this); |
| mLocalMediaManager.stopScan(); |
| } |
| |
| if (mLocalBluetoothManager == null) { |
| Log.e(TAG, "Bluetooth is not supported on this device"); |
| return; |
| } |
| mLocalBluetoothManager.getEventManager().unregisterCallback(this); |
| mContext.unregisterReceiver(mReceiver); |
| } |
| |
| @Override |
| public void close() { |
| mLocalBluetoothManager = null; |
| mLocalMediaManager = null; |
| } |
| |
| @Override |
| public void onAudioModeChanged() { |
| notifySliceChange(); |
| } |
| |
| @Nullable |
| MediaController getActiveLocalMediaController() { |
| return MediaOutputUtils.getActiveLocalMediaController(mContext.getSystemService( |
| MediaSessionManager.class)); |
| } |
| |
| @Override |
| public void onDeviceListUpdate(List<MediaDevice> devices) { |
| buildMediaDevices(devices); |
| notifySliceChange(); |
| } |
| |
| private void buildMediaDevices(List<MediaDevice> devices) { |
| mMediaDevices.clear(); |
| mMediaDevices.addAll(devices); |
| } |
| |
| @Override |
| public void onSelectedDeviceStateChanged(MediaDevice device, int state) { |
| notifySliceChange(); |
| } |
| |
| @Override |
| public void onDeviceAttributesChanged() { |
| notifySliceChange(); |
| } |
| |
| Collection<MediaDevice> getMediaDevices() { |
| return mMediaDevices; |
| } |
| |
| MediaDevice getCurrentConnectedMediaDevice() { |
| return mLocalMediaManager.getCurrentConnectedDevice(); |
| } |
| |
| String getPackageName() { |
| return mPackageName; |
| } |
| |
| private class DevicesChangedBroadcastReceiver extends BroadcastReceiver { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| final String action = intent.getAction(); |
| if (TextUtils.equals(AudioManager.STREAM_DEVICES_CHANGED_ACTION, action)) { |
| notifySliceChange(); |
| } |
| } |
| } |
| } |