426 lines
17 KiB
Java
426 lines
17 KiB
Java
/*
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* Copyright (C) 2023 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.connecteddevice.audiosharing;
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import static com.android.settings.connecteddevice.audiosharing.AudioSharingUtils.SETTINGS_KEY_FALLBACK_DEVICE_GROUP_ID;
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import android.annotation.IntRange;
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import android.bluetooth.BluetoothCsipSetCoordinator;
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import android.bluetooth.BluetoothDevice;
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import android.bluetooth.BluetoothLeBroadcastAssistant;
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import android.bluetooth.BluetoothLeBroadcastMetadata;
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import android.bluetooth.BluetoothLeBroadcastReceiveState;
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import android.bluetooth.BluetoothVolumeControl;
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import android.content.ContentResolver;
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import android.content.Context;
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import android.database.ContentObserver;
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import android.media.AudioManager;
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import android.os.Handler;
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import android.os.Looper;
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import android.provider.Settings;
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import android.util.Log;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.annotation.VisibleForTesting;
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import androidx.lifecycle.LifecycleOwner;
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import androidx.preference.Preference;
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import androidx.preference.PreferenceGroup;
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import androidx.preference.PreferenceScreen;
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import com.android.settings.bluetooth.BluetoothDeviceUpdater;
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import com.android.settings.bluetooth.Utils;
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import com.android.settings.connecteddevice.DevicePreferenceCallback;
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import com.android.settings.dashboard.DashboardFragment;
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import com.android.settingslib.bluetooth.BluetoothUtils;
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import com.android.settingslib.bluetooth.CachedBluetoothDevice;
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import com.android.settingslib.bluetooth.LocalBluetoothLeBroadcastAssistant;
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import com.android.settingslib.bluetooth.LocalBluetoothManager;
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import com.android.settingslib.bluetooth.LocalBluetoothProfileManager;
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import com.android.settingslib.bluetooth.VolumeControlProfile;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.concurrent.Executor;
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import java.util.concurrent.Executors;
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import java.util.concurrent.atomic.AtomicBoolean;
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public class AudioSharingDeviceVolumeGroupController extends AudioSharingBasePreferenceController
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implements DevicePreferenceCallback {
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private static final String TAG = "AudioSharingDeviceVolumeGroupController";
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private static final String KEY = "audio_sharing_device_volume_group";
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@Nullable private final LocalBluetoothManager mBtManager;
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@Nullable private final LocalBluetoothProfileManager mProfileManager;
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@Nullable private final LocalBluetoothLeBroadcastAssistant mAssistant;
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@Nullable private final VolumeControlProfile mVolumeControl;
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@Nullable private final ContentResolver mContentResolver;
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@Nullable private BluetoothDeviceUpdater mBluetoothDeviceUpdater;
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private final Executor mExecutor;
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private final ContentObserver mSettingsObserver;
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@Nullable private PreferenceGroup mPreferenceGroup;
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private List<AudioSharingDeviceVolumePreference> mVolumePreferences = new ArrayList<>();
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private Map<Integer, Integer> mValueMap = new HashMap<Integer, Integer>();
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private AtomicBoolean mCallbacksRegistered = new AtomicBoolean(false);
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@VisibleForTesting
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BluetoothVolumeControl.Callback mVolumeControlCallback =
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new BluetoothVolumeControl.Callback() {
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@Override
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public void onDeviceVolumeChanged(
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@NonNull BluetoothDevice device,
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@IntRange(from = -255, to = 255) int volume) {
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CachedBluetoothDevice cachedDevice =
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mBtManager == null
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? null
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: mBtManager.getCachedDeviceManager().findDevice(device);
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if (cachedDevice == null) return;
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int groupId = AudioSharingUtils.getGroupId(cachedDevice);
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mValueMap.put(groupId, volume);
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for (AudioSharingDeviceVolumePreference preference : mVolumePreferences) {
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if (preference.getCachedDevice() != null
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&& AudioSharingUtils.getGroupId(preference.getCachedDevice())
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== groupId) {
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// If the callback return invalid volume, try to
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// get the volume from AudioManager.STREAM_MUSIC
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int finalVolume = getAudioVolumeIfNeeded(volume);
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Log.d(
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TAG,
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"onDeviceVolumeChanged: set volume to "
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+ finalVolume
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+ " for "
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+ device.getAnonymizedAddress());
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mContext.getMainExecutor()
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.execute(() -> preference.setProgress(finalVolume));
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break;
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}
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}
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}
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};
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@VisibleForTesting
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BluetoothLeBroadcastAssistant.Callback mBroadcastAssistantCallback =
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new BluetoothLeBroadcastAssistant.Callback() {
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@Override
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public void onSearchStarted(int reason) {}
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@Override
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public void onSearchStartFailed(int reason) {}
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@Override
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public void onSearchStopped(int reason) {}
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@Override
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public void onSearchStopFailed(int reason) {}
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@Override
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public void onSourceFound(@NonNull BluetoothLeBroadcastMetadata source) {}
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@Override
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public void onSourceAdded(
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@NonNull BluetoothDevice sink, int sourceId, int reason) {}
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@Override
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public void onSourceAddFailed(
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@NonNull BluetoothDevice sink,
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@NonNull BluetoothLeBroadcastMetadata source,
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int reason) {}
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@Override
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public void onSourceModified(
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@NonNull BluetoothDevice sink, int sourceId, int reason) {}
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@Override
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public void onSourceModifyFailed(
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@NonNull BluetoothDevice sink, int sourceId, int reason) {}
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@Override
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public void onSourceRemoved(
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@NonNull BluetoothDevice sink, int sourceId, int reason) {
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Log.d(TAG, "onSourceRemoved: update volume list.");
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if (mBluetoothDeviceUpdater != null) {
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mBluetoothDeviceUpdater.forceUpdate();
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}
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}
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@Override
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public void onSourceRemoveFailed(
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@NonNull BluetoothDevice sink, int sourceId, int reason) {}
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@Override
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public void onReceiveStateChanged(
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@NonNull BluetoothDevice sink,
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int sourceId,
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@NonNull BluetoothLeBroadcastReceiveState state) {
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if (BluetoothUtils.isConnected(state)) {
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Log.d(TAG, "onReceiveStateChanged: synced, update volume list.");
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if (mBluetoothDeviceUpdater != null) {
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mBluetoothDeviceUpdater.forceUpdate();
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}
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}
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}
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};
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public AudioSharingDeviceVolumeGroupController(Context context) {
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super(context, KEY);
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mBtManager = Utils.getLocalBtManager(mContext);
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mProfileManager = mBtManager == null ? null : mBtManager.getProfileManager();
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mAssistant =
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mProfileManager == null
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? null
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: mProfileManager.getLeAudioBroadcastAssistantProfile();
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mVolumeControl = mProfileManager == null ? null : mProfileManager.getVolumeControlProfile();
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mExecutor = Executors.newSingleThreadExecutor();
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mContentResolver = context.getContentResolver();
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mSettingsObserver = new SettingsObserver();
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}
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private class SettingsObserver extends ContentObserver {
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SettingsObserver() {
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super(new Handler(Looper.getMainLooper()));
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}
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@Override
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public void onChange(boolean selfChange) {
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Log.d(TAG, "onChange, fallback device group id has been changed");
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for (AudioSharingDeviceVolumePreference preference : mVolumePreferences) {
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preference.setOrder(getPreferenceOrderForDevice(preference.getCachedDevice()));
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}
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}
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}
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@Override
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public void onStart(@NonNull LifecycleOwner owner) {
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super.onStart(owner);
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registerCallbacks();
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}
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@Override
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public void onStop(@NonNull LifecycleOwner owner) {
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super.onStop(owner);
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unregisterCallbacks();
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}
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@Override
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public void onDestroy(@NonNull LifecycleOwner owner) {
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mVolumePreferences.clear();
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}
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@Override
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public void displayPreference(PreferenceScreen screen) {
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super.displayPreference(screen);
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mPreferenceGroup = screen.findPreference(KEY);
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if (mPreferenceGroup != null) {
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mPreferenceGroup.setVisible(false);
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}
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if (isAvailable() && mBluetoothDeviceUpdater != null) {
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mBluetoothDeviceUpdater.setPrefContext(screen.getContext());
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mBluetoothDeviceUpdater.forceUpdate();
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}
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}
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@Override
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public String getPreferenceKey() {
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return KEY;
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}
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@Override
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public void onDeviceAdded(Preference preference) {
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if (mPreferenceGroup != null) {
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if (mPreferenceGroup.getPreferenceCount() == 0) {
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mPreferenceGroup.setVisible(true);
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}
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mPreferenceGroup.addPreference(preference);
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}
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if (preference instanceof AudioSharingDeviceVolumePreference) {
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var volumePref = (AudioSharingDeviceVolumePreference) preference;
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CachedBluetoothDevice cachedDevice = volumePref.getCachedDevice();
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volumePref.setOrder(getPreferenceOrderForDevice(cachedDevice));
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mVolumePreferences.add(volumePref);
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if (volumePref.getProgress() > 0) return;
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int volume = mValueMap.getOrDefault(AudioSharingUtils.getGroupId(cachedDevice), -1);
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// If the volume is invalid, try to get the volume from AudioManager.STREAM_MUSIC
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int finalVolume = getAudioVolumeIfNeeded(volume);
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Log.d(
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TAG,
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"onDeviceAdded: set volume to "
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+ finalVolume
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+ " for "
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+ cachedDevice.getDevice().getAnonymizedAddress());
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AudioSharingUtils.postOnMainThread(mContext, () -> volumePref.setProgress(finalVolume));
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}
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}
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@Override
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public void onDeviceRemoved(Preference preference) {
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if (mPreferenceGroup != null) {
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mPreferenceGroup.removePreference(preference);
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if (mPreferenceGroup.getPreferenceCount() == 0) {
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mPreferenceGroup.setVisible(false);
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}
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}
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if (preference instanceof AudioSharingDeviceVolumePreference) {
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var volumePref = (AudioSharingDeviceVolumePreference) preference;
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if (mVolumePreferences.contains(volumePref)) {
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mVolumePreferences.remove(volumePref);
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}
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CachedBluetoothDevice device = volumePref.getCachedDevice();
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Log.d(
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TAG,
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"onDeviceRemoved: "
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+ (device == null
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? "null"
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: device.getDevice().getAnonymizedAddress()));
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}
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}
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@Override
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public void updateVisibility() {
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if (mPreferenceGroup != null && mPreferenceGroup.getPreferenceCount() == 0) {
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mPreferenceGroup.setVisible(false);
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return;
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}
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super.updateVisibility();
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}
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@Override
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public void onAudioSharingProfilesConnected() {
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registerCallbacks();
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}
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/**
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* Initialize the controller.
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*
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* @param fragment The fragment to provide the context and metrics category for {@link
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* AudioSharingBluetoothDeviceUpdater} and provide the host for dialogs.
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*/
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public void init(DashboardFragment fragment) {
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mBluetoothDeviceUpdater =
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new AudioSharingDeviceVolumeControlUpdater(
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fragment.getContext(),
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AudioSharingDeviceVolumeGroupController.this,
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fragment.getMetricsCategory());
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}
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@VisibleForTesting
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void setDeviceUpdater(@Nullable AudioSharingDeviceVolumeControlUpdater updater) {
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mBluetoothDeviceUpdater = updater;
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}
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/** Test only: set callback registration status in tests. */
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@VisibleForTesting
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void setCallbacksRegistered(boolean registered) {
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mCallbacksRegistered.set(registered);
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}
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/** Test only: set volume map in tests. */
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@VisibleForTesting
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void setVolumeMap(@Nullable Map<Integer, Integer> map) {
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mValueMap.clear();
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mValueMap.putAll(map);
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}
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/** Test only: set value for private preferenceGroup in tests. */
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@VisibleForTesting
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void setPreferenceGroup(@Nullable PreferenceGroup group) {
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mPreferenceGroup = group;
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mPreference = group;
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}
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@VisibleForTesting
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ContentObserver getSettingsObserver() {
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return mSettingsObserver;
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}
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private void registerCallbacks() {
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if (!isAvailable()) {
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Log.d(TAG, "Skip registerCallbacks(). Feature is not available.");
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return;
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}
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if (mAssistant == null
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|| mVolumeControl == null
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|| mBluetoothDeviceUpdater == null
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|| mContentResolver == null
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|| !AudioSharingUtils.isAudioSharingProfileReady(mProfileManager)) {
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Log.d(TAG, "Skip registerCallbacks(). Profile is not ready.");
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return;
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}
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if (!mCallbacksRegistered.get()) {
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Log.d(TAG, "registerCallbacks()");
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mAssistant.registerServiceCallBack(mExecutor, mBroadcastAssistantCallback);
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mVolumeControl.registerCallback(mExecutor, mVolumeControlCallback);
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mBluetoothDeviceUpdater.registerCallback();
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mContentResolver.registerContentObserver(
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Settings.Secure.getUriFor(SETTINGS_KEY_FALLBACK_DEVICE_GROUP_ID),
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false,
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mSettingsObserver);
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mCallbacksRegistered.set(true);
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}
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}
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private void unregisterCallbacks() {
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if (!isAvailable()) {
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Log.d(TAG, "Skip unregister callbacks. Feature is not available.");
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return;
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}
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if (mAssistant == null
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|| mVolumeControl == null
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|| mBluetoothDeviceUpdater == null
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|| mContentResolver == null
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|| !AudioSharingUtils.isAudioSharingProfileReady(mProfileManager)) {
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Log.d(TAG, "Skip unregisterCallbacks(). Profile is not ready.");
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return;
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}
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if (mCallbacksRegistered.get()) {
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Log.d(TAG, "unregisterCallbacks()");
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mAssistant.unregisterServiceCallBack(mBroadcastAssistantCallback);
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mVolumeControl.unregisterCallback(mVolumeControlCallback);
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mBluetoothDeviceUpdater.unregisterCallback();
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mContentResolver.unregisterContentObserver(mSettingsObserver);
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mValueMap.clear();
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mCallbacksRegistered.set(false);
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}
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}
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private int getAudioVolumeIfNeeded(int volume) {
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if (volume >= 0) return volume;
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try {
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AudioManager audioManager = mContext.getSystemService(AudioManager.class);
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int max = audioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC);
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int min = audioManager.getStreamMinVolume(AudioManager.STREAM_MUSIC);
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return Math.round(
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audioManager.getStreamVolume(AudioManager.STREAM_MUSIC) * 255f / (max - min));
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} catch (RuntimeException e) {
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Log.e(TAG, "Fail to fetch current music stream volume, error = " + e);
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return volume;
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}
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}
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private int getPreferenceOrderForDevice(@NonNull CachedBluetoothDevice cachedDevice) {
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int groupId = AudioSharingUtils.getGroupId(cachedDevice);
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// The fallback device rank first among the audio sharing device list.
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return (groupId != BluetoothCsipSetCoordinator.GROUP_ID_INVALID
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&& groupId == AudioSharingUtils.getFallbackActiveGroupId(mContext))
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? 0
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: 1;
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}
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}
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