/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.systemui.keyguard;
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import android.os.Trace;
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import com.android.systemui.Dumpable;
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import java.io.FileDescriptor;
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import java.io.PrintWriter;
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import javax.inject.Inject;
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import javax.inject.Singleton;
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/**
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* Tracks the wakefulness lifecycle.
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*/
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@Singleton
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public class WakefulnessLifecycle extends Lifecycle<WakefulnessLifecycle.Observer> implements
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Dumpable {
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public static final int WAKEFULNESS_ASLEEP = 0;
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public static final int WAKEFULNESS_WAKING = 1;
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public static final int WAKEFULNESS_AWAKE = 2;
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public static final int WAKEFULNESS_GOING_TO_SLEEP = 3;
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private int mWakefulness = WAKEFULNESS_ASLEEP;
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@Inject
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public WakefulnessLifecycle() {
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}
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public int getWakefulness() {
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return mWakefulness;
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}
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public void dispatchStartedWakingUp() {
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if (getWakefulness() == WAKEFULNESS_WAKING) {
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return;
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}
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setWakefulness(WAKEFULNESS_WAKING);
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dispatch(Observer::onStartedWakingUp);
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}
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public void dispatchFinishedWakingUp() {
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if (getWakefulness() == WAKEFULNESS_AWAKE) {
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return;
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}
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setWakefulness(WAKEFULNESS_AWAKE);
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dispatch(Observer::onFinishedWakingUp);
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}
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public void dispatchStartedGoingToSleep() {
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if (getWakefulness() == WAKEFULNESS_GOING_TO_SLEEP) {
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return;
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}
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setWakefulness(WAKEFULNESS_GOING_TO_SLEEP);
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dispatch(Observer::onStartedGoingToSleep);
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}
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public void dispatchFinishedGoingToSleep() {
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if (getWakefulness() == WAKEFULNESS_ASLEEP) {
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return;
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}
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setWakefulness(WAKEFULNESS_ASLEEP);
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dispatch(Observer::onFinishedGoingToSleep);
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}
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@Override
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public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
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pw.println("WakefulnessLifecycle:");
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pw.println(" mWakefulness=" + mWakefulness);
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}
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private void setWakefulness(int wakefulness) {
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mWakefulness = wakefulness;
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Trace.traceCounter(Trace.TRACE_TAG_APP, "wakefulness", wakefulness);
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}
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public interface Observer {
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default void onStartedWakingUp() {}
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default void onFinishedWakingUp() {}
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default void onStartedGoingToSleep() {}
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default void onFinishedGoingToSleep() {}
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}
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}
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