1 /* 2 * Copyright (C) 2020 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.systemui.car.userswitcher; 18 19 import android.car.user.CarUserManager; 20 import android.content.Context; 21 import android.util.Log; 22 23 import androidx.annotation.NonNull; 24 import androidx.annotation.VisibleForTesting; 25 26 import com.android.systemui.car.CarServiceProvider; 27 import com.android.systemui.car.users.CarSystemUIUserUtil; 28 import com.android.systemui.car.window.OverlayViewMediator; 29 import com.android.systemui.settings.UserTracker; 30 31 import javax.inject.Inject; 32 33 /** 34 * Registers listeners that subscribe to events that show or hide CarUserSwitchingDialog that is 35 * mounted to SystemUiOverlayWindow. 36 */ 37 public class UserSwitchTransitionViewMediator implements OverlayViewMediator, 38 CarUserManager.UserSwitchUiCallback { 39 private static final String TAG = "UserSwitchTransitionViewMediator"; 40 41 private final Context mContext; 42 private final CarServiceProvider mCarServiceProvider; 43 private final UserTracker mUserTracker; 44 private final UserSwitchTransitionViewController mUserSwitchTransitionViewController; 45 46 @VisibleForTesting 47 final UserTracker.Callback mUserChangedCallback = new UserTracker.Callback() { 48 @Override 49 public void onBeforeUserSwitching(int newUser) { 50 mUserSwitchTransitionViewController.handleShow(newUser); 51 } 52 53 @Override 54 public void onUserChanging(int newUser, @NonNull Context userContext) { 55 mUserSwitchTransitionViewController.handleSwitching(newUser); 56 } 57 58 @Override 59 public void onUserChanged(int newUser, @NonNull Context userContext) { 60 mUserSwitchTransitionViewController.handleHide(); 61 } 62 }; 63 64 @Inject UserSwitchTransitionViewMediator( Context context, CarServiceProvider carServiceProvider, UserTracker userTracker, UserSwitchTransitionViewController userSwitchTransitionViewController)65 public UserSwitchTransitionViewMediator( 66 Context context, 67 CarServiceProvider carServiceProvider, 68 UserTracker userTracker, 69 UserSwitchTransitionViewController userSwitchTransitionViewController) { 70 mContext = context; 71 mCarServiceProvider = carServiceProvider; 72 mUserTracker = userTracker; 73 mUserSwitchTransitionViewController = userSwitchTransitionViewController; 74 } 75 76 @Override registerListeners()77 public void registerListeners() { 78 if (!CarSystemUIUserUtil.isSecondaryMUMDSystemUI()) { 79 // TODO(b/335664913): allow for callback from non-system user (and per user). 80 mCarServiceProvider.addListener(car -> { 81 CarUserManager carUserManager = car.getCarManager(CarUserManager.class); 82 83 if (carUserManager != null) { 84 carUserManager.setUserSwitchUiCallback(this); 85 } else { 86 Log.e(TAG, "registerListeners: CarUserManager could not be obtained."); 87 } 88 }); 89 } 90 91 mUserTracker.addCallback(mUserChangedCallback, mContext.getMainExecutor()); 92 } 93 94 @Override setUpOverlayContentViewControllers()95 public void setUpOverlayContentViewControllers() { 96 // no-op. 97 } 98 99 @Override showUserSwitchDialog(int userId)100 public void showUserSwitchDialog(int userId) { 101 mUserSwitchTransitionViewController.handleShow(userId); 102 } 103 } 104