1 /*
2  * Copyright (C) 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 package com.google.android.car.kitchensink.users;
17 
18 import android.annotation.Nullable;
19 import android.os.Bundle;
20 import android.os.UserHandle;
21 import android.os.UserManager;
22 import android.util.Log;
23 import android.view.LayoutInflater;
24 import android.view.View;
25 import android.view.ViewGroup;
26 import android.widget.Button;
27 import android.widget.ListView;
28 import android.widget.Toast;
29 
30 import androidx.fragment.app.Fragment;
31 
32 import com.google.android.car.kitchensink.R;
33 
34 import java.util.ArrayList;
35 import java.util.Arrays;
36 import java.util.Collections;
37 import java.util.List;
38 import java.util.stream.Collectors;
39 
40 /**
41  * Manipulate users in various ways
42  */
43 public final class UserRestrictionsFragment extends Fragment {
44 
45     private static final String TAG = UserRestrictionsFragment.class.getSimpleName();
46 
47     private static final List<String> CONFIGURABLE_USER_RESTRICTIONS =
48             Arrays.asList(
49                     UserManager.DISALLOW_ADD_USER,
50                     UserManager.DISALLOW_BLUETOOTH,
51                     UserManager.DISALLOW_CONFIG_BRIGHTNESS,
52                     UserManager.DISALLOW_FACTORY_RESET,
53                     UserManager.DISALLOW_INSTALL_APPS,
54                     UserManager.DISALLOW_MODIFY_ACCOUNTS,
55                     UserManager.DISALLOW_OUTGOING_CALLS,
56                     UserManager.DISALLOW_REMOVE_USER,
57                     UserManager.DISALLOW_SMS,
58                     UserManager.DISALLOW_UNINSTALL_APPS,
59                     UserManager.DISALLOW_USER_SWITCH
60             );
61 
62     static {
63         Collections.sort(CONFIGURABLE_USER_RESTRICTIONS);
Log.d(TAG, "Configurable user restrictions: " + CONFIGURABLE_USER_RESTRICTIONS)64         Log.d(TAG, "Configurable user restrictions: " + CONFIGURABLE_USER_RESTRICTIONS);
65     }
66 
67     @Nullable
68     @Override
onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState)69     public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
70             @Nullable Bundle savedInstanceState) {
71         return inflater.inflate(R.layout.user_restrictions, container, false);
72     }
73 
onViewCreated(View view, Bundle savedInstanceState)74     public void onViewCreated(View view, Bundle savedInstanceState) {
75         ListView userRestrictionsList = view.findViewById(R.id.user_restrictions_list);
76         userRestrictionsList.setAdapter(
77                 new UserRestrictionAdapter(getContext(), createUserRestrictionItems()));
78 
79         Button applyButton = view.findViewById(R.id.apply_button);
80         applyButton.setOnClickListener(v -> {
81             UserRestrictionAdapter adapter =
82                     (UserRestrictionAdapter) userRestrictionsList.getAdapter();
83             int count = adapter.getCount();
84             UserManager userManager = getUserManager();
85 
86             // Iterate through all of the user restrictions and set their values
87             List<String> restrictions = new ArrayList<>(count);
88             for (int i = 0; i < count; i++) {
89                 UserRestrictionListItem item = (UserRestrictionListItem) adapter.getItem(i);
90                 String restriction = item.getKey();
91                 boolean added = item.isChecked();
92                 userManager.setUserRestriction(restriction, added);
93                 if (added) {
94                     restrictions.add(restriction);
95                 }
96             }
97             toast("%d restrictions (%s) have been set on user %d!", restrictions.size(),
98                     restrictions, getContext().getUserId());
99         });
100     }
101 
toast(String format, Object...args)102     private void toast(String format, Object...args) {
103         String msg = String.format(format, args);
104         Log.i(TAG, msg);
105         Toast.makeText(getContext(), msg, Toast.LENGTH_SHORT).show();
106     }
107 
createUserRestrictionItems()108     private List<UserRestrictionListItem> createUserRestrictionItems() {
109         int userId = getContext().getUser().getIdentifier();
110         UserHandle user = UserHandle.of(userId);
111         UserManager userManager = getUserManager();
112 
113         List<UserRestrictionListItem> list = CONFIGURABLE_USER_RESTRICTIONS.stream()
114                 .map((key) -> new UserRestrictionListItem(key,
115                         userManager.hasBaseUserRestriction(key, user)))
116                 .collect(Collectors.toList());
117         Log.d(TAG, "Current restrictions for user " + userId + ": " + list);
118 
119         return list;
120     }
121 
getUserManager()122     private UserManager getUserManager() {
123         return getContext().getSystemService(UserManager.class);
124     }
125 }
126