1 /*
2  * Copyright (C) 2017 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.doze;
18 
19 import android.app.AlarmManager;
20 import android.os.Handler;
21 
22 import com.android.systemui.dagger.qualifiers.Main;
23 import com.android.systemui.doze.dagger.DozeScope;
24 import com.android.systemui.util.AlarmTimeout;
25 
26 import javax.inject.Inject;
27 
28 /**
29  * Moves the doze machine from the pausing to the paused state after a timeout.
30  */
31 @DozeScope
32 public class DozePauser implements DozeMachine.Part {
33     public static final String TAG = DozePauser.class.getSimpleName();
34     private final AlarmTimeout mPauseTimeout;
35     private DozeMachine mMachine;
36     private final AlwaysOnDisplayPolicy mPolicy;
37 
38     @Inject
DozePauser(@ain Handler handler, AlarmManager alarmManager, AlwaysOnDisplayPolicy policy)39     public DozePauser(@Main Handler handler, AlarmManager alarmManager,
40             AlwaysOnDisplayPolicy policy) {
41         mPauseTimeout = new AlarmTimeout(alarmManager, this::onTimeout, TAG, handler);
42         mPolicy = policy;
43     }
44 
45     @Override
setDozeMachine(DozeMachine dozeMachine)46     public void setDozeMachine(DozeMachine dozeMachine) {
47         mMachine = dozeMachine;
48     }
49 
50     @Override
transitionTo(DozeMachine.State oldState, DozeMachine.State newState)51     public void transitionTo(DozeMachine.State oldState, DozeMachine.State newState) {
52         switch (newState) {
53             case DOZE_AOD_PAUSING:
54                 mPauseTimeout.schedule(mPolicy.proxScreenOffDelayMs,
55                         AlarmTimeout.MODE_IGNORE_IF_SCHEDULED);
56                 break;
57             default:
58                 mPauseTimeout.cancel();
59                 break;
60         }
61     }
62 
onTimeout()63     private void onTimeout() {
64         mMachine.requestState(DozeMachine.State.DOZE_AOD_PAUSED);
65     }
66 }
67