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      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
     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 
     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 
     74     private void fakeWakeAndUnlock() {
     75         FingerprintUnlockController fingerprintUnlockController = getComponent(StatusBar.class)
     76                 .getFingerprintUnlockController();
     77         fingerprintUnlockController.onFingerprintAcquired();
     78         fingerprintUnlockController.onFingerprintAuthenticated(
     79                 KeyguardUpdateMonitor.getCurrentUser());
     80     }
     81 }
     82