1 /* 2 * Copyright (C) 2018 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.car.settings; 18 19 import static android.car.CarOccupantZoneManager.DISPLAY_TYPE_MAIN; 20 21 import android.annotation.Nullable; 22 import android.app.Application; 23 import android.car.Car; 24 import android.car.Car.CarServiceLifecycleListener; 25 import android.car.CarOccupantZoneManager; 26 import android.car.CarOccupantZoneManager.OccupantZoneConfigChangeListener; 27 import android.car.CarOccupantZoneManager.OccupantZoneInfo; 28 import android.car.media.CarAudioManager; 29 import android.view.Display; 30 31 import androidx.annotation.GuardedBy; 32 33 /** 34 * Application class for CarSettings. 35 */ 36 public class CarSettingsApplication extends Application { 37 38 private CarOccupantZoneManager mCarOccupantZoneManager; 39 40 private final Object mInfoLock = new Object(); 41 private final Object mCarAudioManagerLock = new Object(); 42 43 @GuardedBy("mInfoLock") 44 private int mOccupantZoneDisplayId = Display.DEFAULT_DISPLAY; 45 @GuardedBy("mInfoLock") 46 private int mAudioZoneId = CarAudioManager.INVALID_AUDIO_ZONE; 47 @GuardedBy("mInfoLock") 48 private int mOccupantZoneType = CarOccupantZoneManager.OCCUPANT_TYPE_INVALID; 49 @GuardedBy("mCarAudioManagerLock") 50 private CarAudioManager mCarAudioManager = null; 51 52 /** 53 * Listener to monitor any Occupant Zone configuration change. 54 */ 55 private final OccupantZoneConfigChangeListener mConfigChangeListener = flags -> { 56 synchronized (mInfoLock) { 57 updateZoneInfoLocked(); 58 } 59 }; 60 61 /** 62 * Listener to monitor the Lifecycle of car service. 63 */ 64 private final CarServiceLifecycleListener mCarServiceLifecycleListener = (car, ready) -> { 65 if (!ready) { 66 mCarOccupantZoneManager = null; 67 synchronized (mCarAudioManagerLock) { 68 mCarAudioManager = null; 69 } 70 return; 71 } 72 mCarOccupantZoneManager = (CarOccupantZoneManager) car.getCarManager( 73 Car.CAR_OCCUPANT_ZONE_SERVICE); 74 if (mCarOccupantZoneManager != null) { 75 mCarOccupantZoneManager.registerOccupantZoneConfigChangeListener( 76 mConfigChangeListener); 77 } 78 synchronized (mCarAudioManagerLock) { 79 mCarAudioManager = (CarAudioManager) car.getCarManager(Car.AUDIO_SERVICE); 80 } 81 synchronized (mInfoLock) { 82 updateZoneInfoLocked(); 83 } 84 }; 85 86 @Override onCreate()87 public void onCreate() { 88 super.onCreate(); 89 90 Car.createCar(this, /* handler= */ null , Car.CAR_WAIT_TIMEOUT_WAIT_FOREVER, 91 mCarServiceLifecycleListener); 92 } 93 94 /** 95 * Returns zone type assigned for the current user. 96 * The zone type is used to determine whether the settings preferences 97 * should be available or not. 98 */ getMyOccupantZoneType()99 public final int getMyOccupantZoneType() { 100 synchronized (mInfoLock) { 101 return mOccupantZoneType; 102 } 103 } 104 105 /** 106 * Returns displayId assigned for the current user. 107 */ getMyOccupantZoneDisplayId()108 public final int getMyOccupantZoneDisplayId() { 109 synchronized (mInfoLock) { 110 return mOccupantZoneDisplayId; 111 } 112 } 113 114 /** 115 * Returns audio zone id assigned for the current user. 116 */ getMyAudioZoneId()117 public final int getMyAudioZoneId() { 118 synchronized (mInfoLock) { 119 return mAudioZoneId; 120 } 121 } 122 123 /** 124 * Returns CarAudioManager instance. 125 */ 126 @Nullable getCarAudioManager()127 public final CarAudioManager getCarAudioManager() { 128 synchronized (mCarAudioManagerLock) { 129 return mCarAudioManager; 130 } 131 } 132 133 @GuardedBy("mInfoLock") updateZoneInfoLocked()134 private void updateZoneInfoLocked() { 135 if (mCarOccupantZoneManager == null) { 136 return; 137 } 138 OccupantZoneInfo info = mCarOccupantZoneManager.getMyOccupantZone(); 139 if (info != null) { 140 mOccupantZoneType = info.occupantType; 141 mAudioZoneId = mCarOccupantZoneManager.getAudioZoneIdForOccupant(info); 142 Display display = mCarOccupantZoneManager 143 .getDisplayForOccupant(info, DISPLAY_TYPE_MAIN); 144 if (display != null) { 145 mOccupantZoneDisplayId = display.getDisplayId(); 146 } 147 } 148 } 149 } 150