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/*
* Copyright (C) 2014 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.recents.misc;
import android.os.Handler;
/**
* A dozer is a class that fires a trigger after it falls asleep. You can occasionally poke it to
* wake it up, but it will fall asleep if left untouched.
*/
public class DozeTrigger {
Handler mHandler;
boolean mIsDozing;
boolean mHasTriggered;
int mDozeDurationSeconds;
Runnable mSleepRunnable;
// Sleep-runnable
Runnable mDozeRunnable = new Runnable() {
@Override
public void run() {
mSleepRunnable.run();
mIsDozing = false;
mHasTriggered = true;
}
};
public DozeTrigger(int dozeDurationSeconds, Runnable sleepRunnable) {
mHandler = new Handler();
mDozeDurationSeconds = dozeDurationSeconds;
mSleepRunnable = sleepRunnable;
}
/** Starts dozing. This also resets the trigger flag. */
public void startDozing() {
forcePoke();
mHasTriggered = false;
}
/** Stops dozing. */
public void stopDozing() {
mHandler.removeCallbacks(mDozeRunnable);
mIsDozing = false;
}
/** Poke this dozer to wake it up for a little bit, if it is dozing. */
public void poke() {
if (mIsDozing) {
forcePoke();
}
}
/** Poke this dozer to wake it up for a little bit. */
void forcePoke() {
mHandler.removeCallbacks(mDozeRunnable);
mHandler.postDelayed(mDozeRunnable, mDozeDurationSeconds * 1000);
mIsDozing = true;
}
/** Returns whether we are dozing or not. */
public boolean isDozing() {
return mIsDozing;
}
/** Returns whether the trigger has fired at least once. */
public boolean hasTriggered() {
return mHasTriggered;
}
/** Resets the doze trigger state. */
public void resetTrigger() {
mHasTriggered = false;
}
}
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