| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.systemui.doze; |
| |
| import android.app.AlarmManager; |
| import android.content.Context; |
| import android.os.Handler; |
| import android.os.SystemClock; |
| import android.text.format.Formatter; |
| import android.util.Log; |
| |
| import com.android.systemui.util.wakelock.WakeLock; |
| |
| import java.util.Calendar; |
| import java.util.GregorianCalendar; |
| |
| /** |
| * The policy controlling doze. |
| */ |
| public class DozeUi implements DozeMachine.Part { |
| |
| private static final long TIME_TICK_DEADLINE_MILLIS = 90 * 1000; // 1.5min |
| private final Context mContext; |
| private final AlarmManager mAlarmManager; |
| private final DozeHost mHost; |
| private final Handler mHandler; |
| private final WakeLock mWakeLock; |
| private final DozeMachine mMachine; |
| private final AlarmManager.OnAlarmListener mTimeTick; |
| |
| private boolean mTimeTickScheduled = false; |
| private long mLastTimeTickElapsed = 0; |
| |
| public DozeUi(Context context, AlarmManager alarmManager, DozeMachine machine, |
| WakeLock wakeLock, DozeHost host, Handler handler) { |
| mContext = context; |
| mAlarmManager = alarmManager; |
| mMachine = machine; |
| mWakeLock = wakeLock; |
| mHost = host; |
| mHandler = handler; |
| |
| mTimeTick = this::onTimeTick; |
| } |
| |
| private void pulseWhileDozing(int reason) { |
| mHost.pulseWhileDozing( |
| new DozeHost.PulseCallback() { |
| @Override |
| public void onPulseStarted() { |
| mMachine.requestState(DozeMachine.State.DOZE_PULSING); |
| } |
| |
| @Override |
| public void onPulseFinished() { |
| mMachine.requestState(DozeMachine.State.DOZE_PULSE_DONE); |
| } |
| }, reason); |
| } |
| |
| @Override |
| public void transitionTo(DozeMachine.State oldState, DozeMachine.State newState) { |
| switch (newState) { |
| case DOZE_AOD: |
| scheduleTimeTick(); |
| break; |
| case DOZE: |
| case DOZE_AOD_PAUSED: |
| unscheduleTimeTick(); |
| break; |
| case DOZE_REQUEST_PULSE: |
| pulseWhileDozing(mMachine.getPulseReason()); |
| break; |
| case DOZE_PULSE_DONE: |
| mHost.abortPulsing(); |
| case INITIALIZED: |
| mHost.startDozing(); |
| break; |
| case FINISH: |
| mHost.stopDozing(); |
| unscheduleTimeTick(); |
| break; |
| } |
| } |
| |
| private void scheduleTimeTick() { |
| if (mTimeTickScheduled) { |
| return; |
| } |
| |
| long delta = roundToNextMinute(System.currentTimeMillis()) - System.currentTimeMillis(); |
| mAlarmManager.setExact(AlarmManager.ELAPSED_REALTIME_WAKEUP, |
| SystemClock.elapsedRealtime() + delta, "doze_time_tick", mTimeTick, mHandler); |
| |
| mTimeTickScheduled = true; |
| mLastTimeTickElapsed = SystemClock.elapsedRealtime(); |
| } |
| |
| private void unscheduleTimeTick() { |
| if (!mTimeTickScheduled) { |
| return; |
| } |
| verifyLastTimeTick(); |
| mAlarmManager.cancel(mTimeTick); |
| } |
| |
| private void verifyLastTimeTick() { |
| long millisSinceLastTick = SystemClock.elapsedRealtime() - mLastTimeTickElapsed; |
| if (millisSinceLastTick > TIME_TICK_DEADLINE_MILLIS) { |
| String delay = Formatter.formatShortElapsedTime(mContext, millisSinceLastTick); |
| DozeLog.traceMissedTick(delay); |
| Log.e(DozeMachine.TAG, "Missed AOD time tick by " + delay); |
| } |
| } |
| |
| private long roundToNextMinute(long timeInMillis) { |
| Calendar calendar = GregorianCalendar.getInstance(); |
| calendar.setTimeInMillis(timeInMillis); |
| calendar.set(Calendar.MILLISECOND, 0); |
| calendar.set(Calendar.SECOND, 0); |
| calendar.add(Calendar.MINUTE, 1); |
| |
| return calendar.getTimeInMillis(); |
| } |
| |
| private void onTimeTick() { |
| if (!mTimeTickScheduled) { |
| // Alarm was canceled, but we still got the callback. Ignore. |
| return; |
| } |
| verifyLastTimeTick(); |
| |
| mHost.dozeTimeTick(); |
| |
| // Keep wakelock until a frame has been pushed. |
| mHandler.post(mWakeLock.wrap(() -> {})); |
| |
| mTimeTickScheduled = false; |
| scheduleTimeTick(); |
| } |
| } |