1 /*
2  * Copyright 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.car.settings.system;
18 
19 import android.car.drivingstate.CarUxRestrictions;
20 import android.car.userlib.CarUserManagerHelper;
21 import android.content.Context;
22 
23 import androidx.preference.Preference;
24 
25 import com.android.car.settings.common.FragmentController;
26 import com.android.car.settings.common.PreferenceController;
27 
28 /**
29  * Displays a warning message on the factory reset screen when multiple switchable users are present
30  * on the vehicle.
31  */
32 public class MasterClearOtherUsersPresentPreferenceController extends
33         PreferenceController<Preference> {
34 
35     private final CarUserManagerHelper mCarUserManagerHelper;
36 
MasterClearOtherUsersPresentPreferenceController(Context context, String preferenceKey, FragmentController fragmentController, CarUxRestrictions uxRestrictions)37     public MasterClearOtherUsersPresentPreferenceController(Context context, String preferenceKey,
38             FragmentController fragmentController, CarUxRestrictions uxRestrictions) {
39         super(context, preferenceKey, fragmentController, uxRestrictions);
40         mCarUserManagerHelper = new CarUserManagerHelper(context);
41     }
42 
43     @Override
getPreferenceType()44     protected Class<Preference> getPreferenceType() {
45         return Preference.class;
46     }
47 
48     @Override
updateState(Preference preference)49     protected void updateState(Preference preference) {
50         preference.setVisible(!mCarUserManagerHelper.getAllSwitchableUsers().isEmpty());
51     }
52 }
53