1 /* 2 * Copyright (C) 2014 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.server.telecom; 18 19 import com.android.internal.annotations.VisibleForTesting; 20 21 import android.content.Context; 22 import android.os.PowerManager; 23 24 /** 25 * Handles acquisition and release of wake locks relating to call state. 26 */ 27 @VisibleForTesting 28 public class InCallWakeLockController extends CallsManagerListenerBase { 29 30 private static final String TAG = "InCallWakeLockContoller"; 31 32 private final Context mContext; 33 private final PowerManager.WakeLock mFullWakeLock; 34 private final CallsManager mCallsManager; 35 36 @VisibleForTesting 37 public InCallWakeLockController(Context context, CallsManager callsManager) { 38 mContext = context; 39 mCallsManager = callsManager; 40 41 PowerManager powerManager = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE); 42 mFullWakeLock = powerManager.newWakeLock(PowerManager.FULL_WAKE_LOCK, TAG); 43 44 callsManager.addListener(this); 45 } 46 47 @Override 48 public void onCallAdded(Call call) { 49 handleWakeLock(); 50 } 51 52 @Override 53 public void onCallRemoved(Call call) { 54 handleWakeLock(); 55 } 56 57 @Override 58 public void onCallStateChanged(Call call, int oldState, int newState) { 59 handleWakeLock(); 60 } 61 62 private void handleWakeLock() { 63 // We grab a full lock as long as there exists a ringing call. 64 Call ringingCall = mCallsManager.getRingingCall(); 65 if (ringingCall != null) { 66 mFullWakeLock.acquire(); 67 Log.i(this, "Acquiring full wake lock"); 68 } else if (mFullWakeLock.isHeld()) { 69 mFullWakeLock.release(); 70 Log.i(this, "Releasing full wake lock"); 71 } 72 } 73 } 74