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/*
* 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.incallui.answerproximitysensor;
import android.content.Context;
import android.hardware.display.DisplayManager;
import android.hardware.display.DisplayManager.DisplayListener;
import android.os.PowerManager;
import android.support.annotation.Nullable;
import android.view.Display;
import com.android.dialer.common.LogUtil;
/** The normal PROXIMITY_SCREEN_OFF_WAKE_LOCK provided by the OS. */
public class SystemProximityWakeLock implements AnswerProximityWakeLock, DisplayListener {
private static final String TAG = "SystemProximityWakeLock";
private final Context context;
private final PowerManager.WakeLock wakeLock;
@Nullable private ScreenOnListener listener;
public SystemProximityWakeLock(Context context) {
this.context = context;
wakeLock =
context
.getSystemService(PowerManager.class)
.newWakeLock(PowerManager.PROXIMITY_SCREEN_OFF_WAKE_LOCK, TAG);
}
@Override
public void acquire() {
wakeLock.acquire();
context.getSystemService(DisplayManager.class).registerDisplayListener(this, null);
}
@Override
public void release() {
wakeLock.release();
context.getSystemService(DisplayManager.class).unregisterDisplayListener(this);
}
@Override
public boolean isHeld() {
return wakeLock.isHeld();
}
@Override
public void setScreenOnListener(ScreenOnListener listener) {
this.listener = listener;
}
@Override
public void onDisplayAdded(int displayId) {}
@Override
public void onDisplayRemoved(int displayId) {}
@Override
public void onDisplayChanged(int displayId) {
if (displayId == Display.DEFAULT_DISPLAY) {
if (isDefaultDisplayOn(context)) {
LogUtil.i("SystemProximityWakeLock.onDisplayChanged", "display turned on");
if (listener != null) {
listener.onScreenOn();
}
}
}
}
private static boolean isDefaultDisplayOn(Context context) {
Display display =
context.getSystemService(DisplayManager.class).getDisplay(Display.DEFAULT_DISPLAY);
return display.getState() != Display.STATE_OFF;
}
}
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