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