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.content.Context; 20 21 import com.android.internal.util.Preconditions; 22 23 public class WakeLockFake implements WakeLock { 24 25 private int mAcquired = 0; 26 27 @Override acquire(String why)28 public void acquire(String why) { 29 mAcquired++; 30 } 31 32 @Override release(String why)33 public void release(String why) { 34 Preconditions.checkState(mAcquired > 0); 35 mAcquired--; 36 } 37 38 @Override wrap(Runnable runnable)39 public Runnable wrap(Runnable runnable) { 40 acquire(WakeLockFake.class.getSimpleName()); 41 return () -> { 42 try { 43 runnable.run(); 44 } finally { 45 release(WakeLockFake.class.getSimpleName()); 46 } 47 }; 48 } 49 50 public boolean isHeld() { 51 return mAcquired > 0; 52 } 53 54 public static class Builder extends WakeLock.Builder { 55 private WakeLock mWakeLock; 56 57 public Builder(Context context) { 58 super(context, null); 59 } 60 61 public void setWakeLock(WakeLock wakeLock) { 62 mWakeLock = wakeLock; 63 } 64 65 public WakeLock build() { 66 if (mWakeLock != null) { 67 return mWakeLock; 68 } 69 70 return super.build(); 71 } 72 } 73 } 74