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.users;
18 
19 import android.car.drivingstate.CarUxRestrictions;
20 import android.content.Context;
21 import android.content.pm.UserInfo;
22 
23 import androidx.annotation.VisibleForTesting;
24 
25 import com.android.car.settings.R;
26 import com.android.car.settings.common.ConfirmationDialogFragment;
27 import com.android.car.settings.common.ErrorDialog;
28 import com.android.car.settings.common.FragmentController;
29 
30 /**
31  * Business logic for when the last admin is about to be removed from the device and a new
32  * administrator needs to be chosen.
33  */
34 public class ChooseNewAdminPreferenceController extends UsersBasePreferenceController {
35 
36     private final ConfirmationDialogFragment.ConfirmListener mConfirmListener = arguments -> {
37         UserInfo userToMakeAdmin = (UserInfo) arguments.get(
38                 UsersDialogProvider.KEY_USER_TO_MAKE_ADMIN);
39         assignNewAdminAndRemoveOldAdmin(userToMakeAdmin);
40         getFragmentController().goBack();
41     };
42 
43     private UserInfo mAdminInfo;
44 
ChooseNewAdminPreferenceController(Context context, String preferenceKey, FragmentController fragmentController, CarUxRestrictions uxRestrictions)45     public ChooseNewAdminPreferenceController(Context context, String preferenceKey,
46             FragmentController fragmentController, CarUxRestrictions uxRestrictions) {
47         super(context, preferenceKey, fragmentController, uxRestrictions);
48         getPreferenceProvider().setIncludeCurrentUser(false);
49         getPreferenceProvider().setIncludeGuest(false);
50     }
51 
52     /** Setter for the user info of the admin we're deleting. */
setAdminInfo(UserInfo adminInfo)53     public void setAdminInfo(UserInfo adminInfo) {
54         mAdminInfo = adminInfo;
55     }
56 
57     @Override
checkInitialized()58     protected void checkInitialized() {
59         if (mAdminInfo == null) {
60             throw new IllegalStateException("Admin info should be set by this point");
61         }
62     }
63 
64     @Override
onCreateInternal()65     protected void onCreateInternal() {
66         super.onCreateInternal();
67         ConfirmationDialogFragment dialogFragment =
68                 (ConfirmationDialogFragment) getFragmentController().findDialogByTag(
69                         ConfirmationDialogFragment.TAG);
70 
71         ConfirmationDialogFragment.resetListeners(
72                 dialogFragment,
73                 mConfirmListener,
74                 /* rejectListener= */ null,
75                 /* neutralListener= */ null);
76     }
77 
78     @Override
userClicked(UserInfo userToMakeAdmin)79     protected void userClicked(UserInfo userToMakeAdmin) {
80         ConfirmationDialogFragment dialogFragment =
81                 UsersDialogProvider.getConfirmGrantAdminDialogFragment(getContext(),
82                         mConfirmListener, /* rejectListener= */ null, userToMakeAdmin);
83         getFragmentController().showDialog(dialogFragment, ConfirmationDialogFragment.TAG);
84     }
85 
86     @VisibleForTesting
assignNewAdminAndRemoveOldAdmin(UserInfo userToMakeAdmin)87     void assignNewAdminAndRemoveOldAdmin(UserInfo userToMakeAdmin) {
88         getCarUserManagerHelper().grantAdminPermissions(userToMakeAdmin);
89         removeOldAdmin();
90     }
91 
removeOldAdmin()92     private void removeOldAdmin() {
93         Context context = getContext();
94         if (!UserHelper.getInstance(context).removeUser(context, mAdminInfo)) {
95             // If failed, need to show error dialog for users.
96             getFragmentController().showDialog(
97                     ErrorDialog.newInstance(R.string.delete_user_error_title), /* tag= */ null);
98         }
99     }
100 }
101