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      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.util.AlarmTimeout;
     23 
     24 /**
     25  * Moves the doze machine from the pausing to the paused state after a timeout.
     26  */
     27 public class DozePauser implements DozeMachine.Part {
     28     public static final String TAG = DozePauser.class.getSimpleName();
     29     private final AlarmTimeout mPauseTimeout;
     30     private final DozeMachine mMachine;
     31     private final AlwaysOnDisplayPolicy mPolicy;
     32 
     33     public DozePauser(Handler handler, DozeMachine machine, AlarmManager alarmManager,
     34             AlwaysOnDisplayPolicy policy) {
     35         mMachine = machine;
     36         mPauseTimeout = new AlarmTimeout(alarmManager, this::onTimeout, TAG, handler);
     37         mPolicy = policy;
     38     }
     39 
     40     @Override
     41     public void transitionTo(DozeMachine.State oldState, DozeMachine.State newState) {
     42         switch (newState) {
     43             case DOZE_AOD_PAUSING:
     44                 mPauseTimeout.schedule(mPolicy.proxScreenOffDelayMs,
     45                         AlarmTimeout.MODE_IGNORE_IF_SCHEDULED);
     46                 break;
     47             default:
     48                 mPauseTimeout.cancel();
     49                 break;
     50         }
     51     }
     52 
     53     private void onTimeout() {
     54         mMachine.requestState(DozeMachine.State.DOZE_AOD_PAUSED);
     55     }
     56 }
     57