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.googlecode.android_scripting.facade; 18 19 import android.content.Context; 20 import android.os.PowerManager; 21 import android.os.PowerManager.WakeLock; 22 23 import com.googlecode.android_scripting.jsonrpc.RpcReceiver; 24 import com.googlecode.android_scripting.rpc.Rpc; 25 26 import java.util.HashMap; 27 import java.util.Map; 28 import java.util.Map.Entry; 29 30 /** 31 * A facade exposing some of the functionality of the PowerManager, in particular wake locks. 32 * 33 */ 34 public class WakeLockFacade extends RpcReceiver { 35 36 private final static String WAKE_LOCK_TAG = 37 "com.googlecode.android_scripting.facade.PowerManagerFacade"; 38 private final PowerManager mmPowerManager; 39 40 private enum WakeLockType { 41 FULL, PARTIAL, BRIGHT, DIM 42 } 43 44 private class WakeLockManager { 45 private final Map<WakeLockType, WakeLock> mmLocks = new HashMap<WakeLockType, WakeLock>(); 46 47 public WakeLockManager(PowerManager mmPowerManager) { 48 addWakeLock(WakeLockType.PARTIAL, PowerManager.PARTIAL_WAKE_LOCK); 49 addWakeLock(WakeLockType.FULL, PowerManager.FULL_WAKE_LOCK 50 | PowerManager.ON_AFTER_RELEASE); 51 addWakeLock(WakeLockType.BRIGHT, PowerManager.SCREEN_BRIGHT_WAKE_LOCK 52 | PowerManager.ON_AFTER_RELEASE); 53 addWakeLock(WakeLockType.DIM, PowerManager.SCREEN_DIM_WAKE_LOCK 54 | PowerManager.ON_AFTER_RELEASE); 55 } 56 57 private void addWakeLock(WakeLockType type, int flags) { 58 WakeLock full = mmPowerManager.newWakeLock(flags, WAKE_LOCK_TAG); 59 full.setReferenceCounted(false); 60 mmLocks.put(type, full); 61 } 62 63 public void acquire(WakeLockType type) { 64 mmLocks.get(type).acquire(); 65 for (Entry<WakeLockType, WakeLock> entry : mmLocks.entrySet()) { 66 if (entry.getKey() != type) { 67 entry.getValue().release(); 68 } 69 } 70 } 71 72 public void release() { 73 for (Entry<WakeLockType, WakeLock> entry : mmLocks.entrySet()) { 74 entry.getValue().release(); 75 } 76 } 77 } 78 79 private final WakeLockManager mManager; 80 81 public WakeLockFacade(FacadeManager manager) { 82 super(manager); 83 mmPowerManager = (PowerManager) manager.getService() 84 .getSystemService(Context.POWER_SERVICE); 85 mManager = new WakeLockManager(mmPowerManager); 86 } 87 88 @Rpc(description = "Acquires a full wake lock (CPU on, screen bright, keyboard bright).") 89 public void wakeLockAcquireFull() { 90 mManager.acquire(WakeLockType.FULL); 91 } 92 93 @Rpc(description = "Acquires a partial wake lock (CPU on).") 94 public void wakeLockAcquirePartial() { 95 mManager.acquire(WakeLockType.PARTIAL); 96 } 97 98 @Rpc(description = "Acquires a bright wake lock (CPU on, screen bright).") 99 public void wakeLockAcquireBright() { 100 mManager.acquire(WakeLockType.BRIGHT); 101 } 102 103 @Rpc(description = "Acquires a dim wake lock (CPU on, screen dim).") 104 public void wakeLockAcquireDim() { 105 mManager.acquire(WakeLockType.DIM); 106 } 107 108 @Rpc(description = "Releases the wake lock.") 109 public void wakeLockRelease() { 110 mManager.release(); 111 } 112 113 @Override 114 public void shutdown() { 115 wakeLockRelease(); 116 } 117 } 118
