1 /*
2  * Copyright (C) 2016 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.systemui;
18 
19 import android.content.BroadcastReceiver;
20 import android.content.Context;
21 import android.content.Intent;
22 import android.content.IntentFilter;
23 import android.hardware.biometrics.BiometricSourceType;
24 import android.os.Build;
25 import android.os.PowerManager;
26 import android.os.SystemClock;
27 
28 import com.android.internal.util.LatencyTracker;
29 import com.android.keyguard.KeyguardUpdateMonitor;
30 import com.android.systemui.statusbar.phone.BiometricUnlockController;
31 import com.android.systemui.statusbar.phone.StatusBar;
32 
33 /**
34  * Class that only runs on debuggable builds that listens to broadcasts that simulate actions in the
35  * system that are used for testing the latency.
36  */
37 public class LatencyTester extends SystemUI {
38 
39     private static final String ACTION_FINGERPRINT_WAKE =
40             "com.android.systemui.latency.ACTION_FINGERPRINT_WAKE";
41     private static final String ACTION_TURN_ON_SCREEN =
42             "com.android.systemui.latency.ACTION_TURN_ON_SCREEN";
43 
44     @Override
start()45     public void start() {
46         if (!Build.IS_DEBUGGABLE) {
47             return;
48         }
49 
50         IntentFilter filter = new IntentFilter();
51         filter.addAction(ACTION_FINGERPRINT_WAKE);
52         filter.addAction(ACTION_TURN_ON_SCREEN);
53         mContext.registerReceiver(new BroadcastReceiver() {
54             @Override
55             public void onReceive(Context context, Intent intent) {
56                 String action = intent.getAction();
57                 if (ACTION_FINGERPRINT_WAKE.equals(action)) {
58                     fakeWakeAndUnlock();
59                 } else if (ACTION_TURN_ON_SCREEN.equals(action)) {
60                     fakeTurnOnScreen();
61                 }
62             }
63         }, filter);
64     }
65 
fakeTurnOnScreen()66     private void fakeTurnOnScreen() {
67         PowerManager powerManager = mContext.getSystemService(PowerManager.class);
68         if (LatencyTracker.isEnabled(mContext)) {
69             LatencyTracker.getInstance(mContext).onActionStart(
70                     LatencyTracker.ACTION_TURN_ON_SCREEN);
71         }
72         powerManager.wakeUp(SystemClock.uptimeMillis(), "android.policy:LATENCY_TESTS");
73     }
74 
fakeWakeAndUnlock()75     private void fakeWakeAndUnlock() {
76         BiometricUnlockController biometricUnlockController = getComponent(StatusBar.class)
77                 .getBiometricUnlockController();
78         biometricUnlockController.onBiometricAcquired(BiometricSourceType.FINGERPRINT);
79         biometricUnlockController.onBiometricAuthenticated(
80                 KeyguardUpdateMonitor.getCurrentUser(), BiometricSourceType.FINGERPRINT);
81     }
82 }
83