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.profiles;
18 
19 import android.car.drivingstate.CarUxRestrictions;
20 import android.content.BroadcastReceiver;
21 import android.content.Context;
22 import android.content.Intent;
23 import android.content.IntentFilter;
24 import android.content.pm.UserInfo;
25 
26 import androidx.preference.Preference;
27 
28 import com.android.car.settings.common.FragmentController;
29 import com.android.car.settings.common.PreferenceController;
30 
31 /**
32  * Common setup of all preference controllers related to profile details.
33  *
34  * @param <V> the upper bound on the type of {@link Preference} on which the controller
35  *            expects to operate.
36  */
37 public abstract class ProfileDetailsBasePreferenceController<V extends Preference> extends
38         PreferenceController<V> {
39 
40     private UserInfo mUserInfo;
41 
42     private final BroadcastReceiver mProfileUpdateReceiver = new BroadcastReceiver() {
43         @Override
44         public void onReceive(Context context, Intent intent) {
45             refreshUserInfo();
46             refreshUi();
47         }
48     };
49 
ProfileDetailsBasePreferenceController(Context context, String preferenceKey, FragmentController fragmentController, CarUxRestrictions uxRestrictions)50     public ProfileDetailsBasePreferenceController(Context context, String preferenceKey,
51             FragmentController fragmentController, CarUxRestrictions uxRestrictions) {
52         super(context, preferenceKey, fragmentController, uxRestrictions);
53     }
54 
55     /** Sets the user info for which this preference controller operates. */
setUserInfo(UserInfo userInfo)56     public void setUserInfo(UserInfo userInfo) {
57         mUserInfo = userInfo;
58     }
59 
60     /** Gets the current user info. */
getUserInfo()61     public UserInfo getUserInfo() {
62         return mUserInfo;
63     }
64 
65     /** Refreshes the user info, since it might have changed. */
refreshUserInfo()66     protected void refreshUserInfo() {
67         mUserInfo = ProfileUtils.getUserInfo(getContext(), mUserInfo.id);
68     }
69 
70     @Override
checkInitialized()71     protected void checkInitialized() {
72         if (mUserInfo == null) {
73             throw new IllegalStateException("UserInfo should be non-null by this point");
74         }
75     }
76 
77     /** Registers a listener which updates the displayed profile name when a profile is modified. */
78     @Override
onCreateInternal()79     protected void onCreateInternal() {
80         registerForProfileEvents();
81     }
82 
83     /**
84      * Unregisters a listener which updates the displayed profile name when a profile is modified.
85      */
86     @Override
onDestroyInternal()87     protected void onDestroyInternal() {
88         unregisterForProfileEvents();
89     }
90 
registerForProfileEvents()91     private void registerForProfileEvents() {
92         IntentFilter filter = new IntentFilter(Intent.ACTION_USER_INFO_CHANGED);
93         getContext().registerReceiver(mProfileUpdateReceiver, filter);
94     }
95 
unregisterForProfileEvents()96     private void unregisterForProfileEvents() {
97         getContext().unregisterReceiver(mProfileUpdateReceiver);
98     }
99 }
100