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 android.server.wm;
18 
19 import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY;
20 
21 import static org.junit.Assert.assertFalse;
22 import static org.junit.Assert.assertTrue;
23 
24 import android.content.Context;
25 import android.os.UserHandle;
26 import android.platform.test.annotations.Presubmit;
27 import android.view.View;
28 import android.view.WindowManager;
29 
30 import org.junit.Test;
31 
32 @Presubmit
33 public class AddWindowAsUserTest extends ActivityManagerTestBase  {
34     @Test
testAddWindowSecondaryUser()35     public void testAddWindowSecondaryUser() {
36         // Get original userId from context first, not every platform use SYSTEM as default user.
37         final int myUserId = mContext.getUserId();
38         testAddWindowWithUser(UserHandle.of(myUserId), false /* shouldCatchException */);
39 
40         // Doesn't grant INTERACT_ACROSS_USERS_FULL permission, so any other user should not
41         // able to add window.
42         testAddWindowWithUser(UserHandle.ALL, true);
43     }
44 
testAddWindowWithUser(UserHandle user, boolean shouldCatchException)45     private void testAddWindowWithUser(UserHandle user, boolean shouldCatchException) {
46         mInstrumentation.runOnMainSync(() -> {
47             final View view = new View(mContext);
48             final WindowManager wm = getWindowManagerForUser(user);
49             boolean catchException = false;
50             try {
51                 wm.addView(view, new WindowManager.LayoutParams(TYPE_APPLICATION_OVERLAY));
52             } catch (WindowManager.BadTokenException exception) {
53                 catchException = true;
54             } finally {
55                 if (!catchException) {
56                     wm.removeViewImmediate(view);
57                 }
58             }
59             if (shouldCatchException) {
60                 assertTrue("Should receive exception for user " + user, catchException);
61             } else {
62                 assertFalse("Shouldn't receive exception for user " + user, catchException);
63             }
64         });
65     }
66 
getWindowManagerForUser(UserHandle user)67     private WindowManager getWindowManagerForUser(UserHandle user) {
68         final Context userContext = mContext.createContextAsUser(user, 0);
69         return userContext.getSystemService(WindowManager.class);
70     }
71 }
72