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      1 /*
      2  * Copyright (C) 2014 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.android.cts.deviceandprofileowner;
     17 
     18 import android.app.admin.DevicePolicyManager;
     19 import android.content.BroadcastReceiver;
     20 import android.content.ComponentName;
     21 import android.content.Context;
     22 import android.content.Intent;
     23 import android.content.IntentFilter;
     24 import android.util.Log;
     25 
     26 import java.util.concurrent.Semaphore;
     27 import java.util.concurrent.TimeUnit;
     28 
     29 /**
     30  * Tests for {@link DevicePolicyManager#setScreenCaptureDisabled} and
     31  * {@link DevicePolicyManager#getScreenCaptureDisabled} APIs.
     32  */
     33 public class ScreenCaptureDisabledTest extends BaseDeviceAdminTest {
     34 
     35     private static final String TAG = "ScreenCaptureDisabledTest";
     36 
     37     private ScreenCaptureBroadcastReceiver mReceiver = new ScreenCaptureBroadcastReceiver();
     38 
     39     protected void setUp() throws Exception {
     40         super.setUp();
     41         mContext.registerReceiver(mReceiver, new IntentFilter(
     42                 ScreenCaptureDisabledActivity.ACTIVITY_RESUMED));
     43     }
     44 
     45     protected void tearDown() throws Exception {
     46         mContext.unregisterReceiver(mReceiver);
     47         super.tearDown();
     48     }
     49 
     50     public void testSetScreenCaptureDisabled_false() throws Exception {
     51         mDevicePolicyManager.setScreenCaptureDisabled(ADMIN_RECEIVER_COMPONENT, false);
     52         assertFalse(mDevicePolicyManager.getScreenCaptureDisabled(ADMIN_RECEIVER_COMPONENT));
     53         assertFalse(mDevicePolicyManager.getScreenCaptureDisabled(null /* any admin */));
     54         startTestActivity();
     55         assertNotNull(getInstrumentation().getUiAutomation().takeScreenshot());
     56     }
     57 
     58     public void testSetScreenCaptureDisabled_true() throws Exception {
     59         mDevicePolicyManager.setScreenCaptureDisabled(ADMIN_RECEIVER_COMPONENT, true);
     60         assertTrue(mDevicePolicyManager.getScreenCaptureDisabled(ADMIN_RECEIVER_COMPONENT));
     61         assertTrue(mDevicePolicyManager.getScreenCaptureDisabled(null /* any admin */));
     62         startTestActivity();
     63         assertNull(getInstrumentation().getUiAutomation().takeScreenshot());
     64     }
     65 
     66     public void testScreenCapturePossible() throws Exception {
     67         assertNotNull(getInstrumentation().getUiAutomation().takeScreenshot());
     68     }
     69 
     70     // We need to launch an activity before trying to take a screen shot, because screenshots are
     71     // only blocked on a per-user basis in the profile owner case depending on the owner of the
     72     // foreground activity.
     73     private void startTestActivity() throws Exception {
     74         Intent launchIntent = new Intent();
     75         launchIntent.setComponent(new ComponentName(PACKAGE_NAME,
     76                 ScreenCaptureDisabledActivity.class.getName()));
     77         launchIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
     78         mContext.startActivity(launchIntent);
     79         assertTrue(mReceiver.waitForBroadcast());
     80         Thread.sleep(1000);
     81     }
     82 
     83     private class ScreenCaptureBroadcastReceiver extends BroadcastReceiver {
     84         private final Semaphore mSemaphore = new Semaphore(0);
     85 
     86         @Override
     87         public void onReceive(Context context, Intent intent) {
     88             Log.d(TAG, "Broadcast received");
     89             mSemaphore.release();
     90         }
     91 
     92         public boolean waitForBroadcast() throws Exception {
     93             if (mSemaphore.tryAcquire(5, TimeUnit.SECONDS)) {
     94                 return true;
     95             }
     96             return false;
     97         }
     98     }
     99 }
    100