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      1 /*
      2  * Copyright (C) 2017 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;
     18 
     19 import android.bluetooth.BluetoothCodecConfig;
     20 import android.content.Context;
     21 
     22 import com.android.settings.R;
     23 import com.android.settingslib.core.lifecycle.Lifecycle;
     24 
     25 public class BluetoothAudioChannelModePreferenceController extends
     26         AbstractBluetoothA2dpPreferenceController {
     27 
     28     private static final int DEFAULT_INDEX = 0;
     29     private static final String BLUETOOTH_SELECT_A2DP_CHANNEL_MODE_KEY =
     30             "bluetooth_select_a2dp_channel_mode";
     31 
     32     public BluetoothAudioChannelModePreferenceController(Context context, Lifecycle lifecycle,
     33             BluetoothA2dpConfigStore store) {
     34         super(context, lifecycle, store);
     35     }
     36 
     37     @Override
     38     public String getPreferenceKey() {
     39         return BLUETOOTH_SELECT_A2DP_CHANNEL_MODE_KEY;
     40     }
     41 
     42     @Override
     43     protected String[] getListValues() {
     44         return mContext.getResources().getStringArray(
     45                 R.array.bluetooth_a2dp_codec_channel_mode_values);
     46     }
     47 
     48     @Override
     49     protected String[] getListSummaries() {
     50         return mContext.getResources().getStringArray(
     51                 R.array.bluetooth_a2dp_codec_channel_mode_summaries);
     52     }
     53 
     54     @Override
     55     protected int getDefaultIndex() {
     56         return DEFAULT_INDEX;
     57     }
     58 
     59     @Override
     60     protected void writeConfigurationValues(Object newValue) {
     61         final int index = mPreference.findIndexOfValue(newValue.toString());
     62         int channelModeValue = BluetoothCodecConfig.CHANNEL_MODE_NONE; // default
     63         switch (index) {
     64             case 0:
     65                 // Reset to default
     66                 break;
     67             case 1:
     68                 channelModeValue = BluetoothCodecConfig.CHANNEL_MODE_MONO;
     69                 break;
     70             case 2:
     71                 channelModeValue = BluetoothCodecConfig.CHANNEL_MODE_STEREO;
     72                 break;
     73             default:
     74                 break;
     75         }
     76         mBluetoothA2dpConfigStore.setChannelMode(channelModeValue);
     77     }
     78 
     79     @Override
     80     protected int getCurrentA2dpSettingIndex(BluetoothCodecConfig config) {
     81         final int channelMode = config.getChannelMode();
     82         int index = DEFAULT_INDEX;
     83         switch (channelMode) {
     84             case BluetoothCodecConfig.CHANNEL_MODE_MONO:
     85                 index = 1;
     86                 break;
     87             case BluetoothCodecConfig.CHANNEL_MODE_STEREO:
     88                 index = 2;
     89                 break;
     90             case BluetoothCodecConfig.CHANNEL_MODE_NONE:
     91             default:
     92                 break;
     93         }
     94         return index;
     95     }
     96 }
     97