Home | History | Annotate | Download | only in telecom 
      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 import android.telecom.Log;
     21 
     22 /**
     23  * Handles acquisition and release of wake locks relating to call state.
     24  */
     25 @VisibleForTesting
     26 public class InCallWakeLockController extends CallsManagerListenerBase {
     27 
     28     private final TelecomWakeLock mTelecomWakeLock;
     29     private final CallsManager mCallsManager;
     30 
     31     @VisibleForTesting
     32     public InCallWakeLockController(TelecomWakeLock telecomWakeLock, CallsManager callsManager) {
     33         mCallsManager = callsManager;
     34 
     35         mTelecomWakeLock = telecomWakeLock;
     36         mTelecomWakeLock.setReferenceCounted(false);
     37     }
     38 
     39     @Override
     40     public void onCallAdded(Call call) {
     41         if (call.isExternalCall()) {
     42             return;
     43         }
     44         handleWakeLock();
     45     }
     46 
     47     @Override
     48     public void onCallRemoved(Call call) {
     49         if (call.isExternalCall()) {
     50             return;
     51         }
     52         handleWakeLock();
     53     }
     54 
     55     @Override
     56     public void onCallStateChanged(Call call, int oldState, int newState) {
     57         if (call.isExternalCall()) {
     58             return;
     59         }
     60         handleWakeLock();
     61     }
     62 
     63     private void handleWakeLock() {
     64         // We grab a full lock as long as there exists a ringing call.
     65         Call ringingCall = mCallsManager.getRingingCall();
     66         if (ringingCall != null) {
     67             mTelecomWakeLock.acquire();
     68             Log.i(this, "Acquiring full wake lock");
     69         } else {
     70             mTelecomWakeLock.release(0);
     71             Log.i(this, "Releasing full wake lock");
     72         }
     73     }
     74 }
     75