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.BluetoothCodecConfig; 20 import android.content.Context; 21 import android.util.Log; 22 23 import androidx.annotation.VisibleForTesting; 24 import androidx.preference.Preference; 25 import androidx.preference.PreferenceScreen; 26 27 import com.android.settings.development.BluetoothA2dpConfigStore; 28 import com.android.settingslib.core.lifecycle.Lifecycle; 29 30 import java.util.ArrayList; 31 import java.util.List; 32 33 /** 34 * Dialog preference controller to set the Bluetooth A2DP config of LDAC quality 35 */ 36 public class BluetoothQualityDialogPreferenceController extends 37 AbstractBluetoothDialogPreferenceController { 38 39 private static final String KEY = "bluetooth_a2dp_ldac_playback_quality"; 40 private static final String TAG = "BtQualityCtr"; 41 BluetoothQualityDialogPreferenceController(Context context, Lifecycle lifecycle, BluetoothA2dpConfigStore store)42 public BluetoothQualityDialogPreferenceController(Context context, Lifecycle lifecycle, 43 BluetoothA2dpConfigStore store) { 44 super(context, lifecycle, store); 45 } 46 47 @Override getPreferenceKey()48 public String getPreferenceKey() { 49 return KEY; 50 } 51 52 @Override displayPreference(PreferenceScreen screen)53 public void displayPreference(PreferenceScreen screen) { 54 super.displayPreference(screen); 55 ((BaseBluetoothDialogPreference) mPreference).setCallback(this); 56 } 57 58 @Override writeConfigurationValues(final int index)59 protected void writeConfigurationValues(final int index) { 60 long codecSpecific1Value = 0; // default 61 switch (index) { 62 case 0: 63 case 1: 64 case 2: 65 case 3: 66 codecSpecific1Value = 1000 + index; 67 break; 68 default: 69 break; 70 } 71 mBluetoothA2dpConfigStore.setCodecSpecific1Value(codecSpecific1Value); 72 } 73 74 @Override getCurrentIndexByConfig(BluetoothCodecConfig config)75 protected int getCurrentIndexByConfig(BluetoothCodecConfig config) { 76 if (config == null) { 77 Log.e(TAG, "Unable to get current config index. Config is null."); 78 } 79 return convertCfgToBtnIndex((int) config.getCodecSpecific1()); 80 } 81 82 @Override getSelectableIndex()83 public List<Integer> getSelectableIndex() { 84 List<Integer> selectableIndex = new ArrayList<>(); 85 // All four items of LDAC are available. 86 for (int i = 0; i < 4; i++) { 87 selectableIndex.add(i); 88 } 89 return selectableIndex; 90 } 91 92 @Override updateState(Preference preference)93 public void updateState(Preference preference) { 94 super.updateState(preference); 95 // Enable preference when current codec type is LDAC. For other cases, disable it. 96 final BluetoothCodecConfig currentConfig = getCurrentCodecConfig(); 97 if (currentConfig != null 98 && currentConfig.getCodecType() == BluetoothCodecConfig.SOURCE_CODEC_TYPE_LDAC) { 99 preference.setEnabled(true); 100 } else { 101 preference.setEnabled(false); 102 preference.setSummary(""); 103 } 104 } 105 106 @Override onHDAudioEnabled(boolean enabled)107 public void onHDAudioEnabled(boolean enabled) { 108 mPreference.setEnabled(false); 109 } 110 111 @VisibleForTesting convertCfgToBtnIndex(int config)112 int convertCfgToBtnIndex(int config) { 113 int index = config - 1000; 114 if (index < 0) { 115 index = getDefaultIndex(); 116 } 117 return index; 118 } 119 } 120