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/*
* 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.development.bluetooth;
import android.bluetooth.BluetoothCodecConfig;
import android.content.Context;
import android.util.Log;
import androidx.annotation.VisibleForTesting;
import androidx.preference.PreferenceScreen;
import com.android.settings.development.BluetoothA2dpConfigStore;
import com.android.settingslib.core.lifecycle.Lifecycle;
import java.util.ArrayList;
import java.util.List;
/**
* Dialog preference controller to set the Bluetooth A2DP config of audio channel mode
*/
public class BluetoothChannelModeDialogPreferenceController extends
AbstractBluetoothDialogPreferenceController {
private static final String KEY = "bluetooth_channel_mode_settings";
private static final String TAG = "BtChannelModeCtr";
public BluetoothChannelModeDialogPreferenceController(Context context, Lifecycle lifecycle,
BluetoothA2dpConfigStore store) {
super(context, lifecycle, store);
}
@Override
public String getPreferenceKey() {
return KEY;
}
@Override
public void displayPreference(PreferenceScreen screen) {
super.displayPreference(screen);
((BaseBluetoothDialogPreference) mPreference).setCallback(this);
}
@Override
protected void writeConfigurationValues(final int index) {
int channelModeValue = BluetoothCodecConfig.CHANNEL_MODE_NONE; // default
switch (index) {
case 0:
final BluetoothCodecConfig currentConfig = getCurrentCodecConfig();
if (currentConfig != null) {
channelModeValue = getHighestChannelMode(getSelectableByCodecType(
currentConfig.getCodecType()));
}
break;
case 1:
channelModeValue = BluetoothCodecConfig.CHANNEL_MODE_MONO;
break;
case 2:
channelModeValue = BluetoothCodecConfig.CHANNEL_MODE_STEREO;
break;
default:
break;
}
mBluetoothA2dpConfigStore.setChannelMode(channelModeValue);
}
@Override
protected int getCurrentIndexByConfig(BluetoothCodecConfig config) {
if (config == null) {
Log.e(TAG, "Unable to get current config index. Config is null.");
}
return convertCfgToBtnIndex(config.getChannelMode());
}
@Override
public List<Integer> getSelectableIndex() {
List<Integer> selectableIndex = new ArrayList<>();
selectableIndex.add(getDefaultIndex());
final BluetoothCodecConfig currentConfig = getCurrentCodecConfig();
if (currentConfig != null) {
final int configs =
getSelectableByCodecType(currentConfig.getCodecType()).getChannelMode();
for (int i = 0; i < CHANNEL_MODES.length; i++) {
if ((configs & CHANNEL_MODES[i]) != 0) {
selectableIndex.add(convertCfgToBtnIndex(CHANNEL_MODES[i]));
}
}
}
return selectableIndex;
}
@VisibleForTesting
int convertCfgToBtnIndex(int config) {
int index = getDefaultIndex();
switch (config) {
case BluetoothCodecConfig.CHANNEL_MODE_MONO:
index = 1;
break;
case BluetoothCodecConfig.CHANNEL_MODE_STEREO:
index = 2;
break;
default:
Log.e(TAG, "Unsupported config:" + config);
break;
}
return index;
}
}
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