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.util.wakelock; 18 19 import android.os.Handler; 20 21 /** 22 * A wake lock that has a built in delay when releasing to give the framebuffer time to update. 23 */ 24 public class DelayedWakeLock implements WakeLock { 25 26 private static final long RELEASE_DELAY_MS = 140; 27 28 private final Handler mHandler; 29 private final WakeLock mInner; 30 private final Runnable mRelease; 31 32 public DelayedWakeLock(Handler h, WakeLock inner) { 33 mHandler = h; 34 mInner = inner; 35 mRelease = mInner::release; 36 } 37 38 @Override 39 public void acquire() { 40 mInner.acquire(); 41 } 42 43 @Override 44 public void release() { 45 mHandler.postDelayed(mRelease, RELEASE_DELAY_MS); 46 } 47 48 @Override 49 public Runnable wrap(Runnable r) { 50 return WakeLock.wrapImpl(this, r); 51 } 52 } 53
