1 /*
2  * Copyright (C) 2019 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.settings.development.bluetooth;
18 
19 import android.bluetooth.BluetoothA2dp;
20 import android.bluetooth.BluetoothDevice;
21 import android.content.Context;
22 import android.util.Log;
23 
24 import androidx.preference.Preference;
25 import androidx.preference.SwitchPreference;
26 
27 import com.android.settings.development.BluetoothA2dpConfigStore;
28 import com.android.settingslib.core.lifecycle.Lifecycle;
29 
30 /**
31  * Switch preference controller for HD audio(optional codec)
32  */
33 public class BluetoothHDAudioPreferenceController extends AbstractBluetoothPreferenceController
34         implements Preference.OnPreferenceChangeListener {
35 
36     private static final String KEY = "bluetooth_hd_audio_settings";
37     private static final String TAG = "BtHDAudioCtr";
38 
39     private final Callback mCallback;
40 
BluetoothHDAudioPreferenceController(Context context, Lifecycle lifecycle, BluetoothA2dpConfigStore store, Callback callback)41     public BluetoothHDAudioPreferenceController(Context context, Lifecycle lifecycle,
42                                                 BluetoothA2dpConfigStore store,
43                                                 Callback callback) {
44         super(context, lifecycle, store);
45         mCallback = callback;
46     }
47 
48     @Override
updateState(Preference preference)49     public void updateState(Preference preference) {
50         final BluetoothA2dp bluetoothA2dp = mBluetoothA2dp;
51         if (bluetoothA2dp == null) {
52             mPreference.setEnabled(false);
53             return;
54         }
55         final BluetoothDevice activeDevice = bluetoothA2dp.getActiveDevice();
56         if (activeDevice == null) {
57             Log.e(TAG, "Active device is null. To disable HD audio button");
58             mPreference.setEnabled(false);
59             return;
60         }
61         final boolean supported = (bluetoothA2dp.isOptionalCodecsSupported(activeDevice)
62                 == BluetoothA2dp.OPTIONAL_CODECS_SUPPORTED);
63         mPreference.setEnabled(supported);
64         if (supported) {
65             final boolean isEnabled = bluetoothA2dp.isOptionalCodecsEnabled(activeDevice)
66                     == BluetoothA2dp.OPTIONAL_CODECS_PREF_ENABLED;
67             ((SwitchPreference) mPreference).setChecked(isEnabled);
68         }
69     }
70 
71     @Override
getPreferenceKey()72     public String getPreferenceKey() {
73         return KEY;
74     }
75 
76     @Override
onPreferenceChange(Preference preference, Object newValue)77     public boolean onPreferenceChange(Preference preference, Object newValue) {
78         final BluetoothA2dp bluetoothA2dp = mBluetoothA2dp;
79         if (bluetoothA2dp == null) {
80             mPreference.setEnabled(false);
81             return true;
82         }
83         final boolean enabled = (Boolean) newValue;
84         final int prefValue = enabled
85                 ? BluetoothA2dp.OPTIONAL_CODECS_PREF_ENABLED
86                 : BluetoothA2dp.OPTIONAL_CODECS_PREF_DISABLED;
87         BluetoothDevice activeDevice = bluetoothA2dp.getActiveDevice();
88         if (activeDevice == null) {
89             mPreference.setEnabled(false);
90             return true;
91         }
92         bluetoothA2dp.setOptionalCodecsEnabled(activeDevice, prefValue);
93         if (enabled) {
94             bluetoothA2dp.enableOptionalCodecs(activeDevice);
95         } else {
96             bluetoothA2dp.disableOptionalCodecs(activeDevice);
97         }
98         mCallback.onBluetoothHDAudioEnabled(enabled);
99         return true;
100     }
101 }
102