1 /* 2 * Copyright (c) 2016, 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 package com.android.car.stream.telecom; 17 18 import android.content.Intent; 19 import android.os.Binder; 20 import android.os.IBinder; 21 import android.telecom.Call; 22 import android.telecom.CallAudioState; 23 import android.telecom.InCallService; 24 import android.util.Log; 25 26 /** 27 * {@link InCallService} to listen for incoming calls and changes in call state. 28 */ 29 public class StreamInCallService extends InCallService { 30 public static final String LOCAL_INCALL_SERVICE_BIND_ACTION = "stream_incall_service_action"; 31 private static final String TAG = "StreamInCallService"; 32 private final IBinder mBinder = new StreamInCallServiceBinder(); 33 34 private InCallServiceCallback mCallback; 35 36 /** 37 * Callback interface to receive changes in the call state. 38 */ 39 public interface InCallServiceCallback { 40 void onCallAdded(Call call); 41 42 void onCallRemoved(Call call); 43 44 void onCallAudioStateChanged(CallAudioState audioState); 45 } 46 47 public class StreamInCallServiceBinder extends Binder { 48 StreamInCallService getService() { 49 return StreamInCallService.this; 50 } 51 } 52 53 public void setCallback(InCallServiceCallback callback) { 54 mCallback = callback; 55 } 56 57 @Override 58 public IBinder onBind(Intent intent) { 59 // This service can be bound by the framework or a local stream producer. 60 // Check the action and return the appropriate IBinder. 61 if (LOCAL_INCALL_SERVICE_BIND_ACTION.equals(intent.getAction())) { 62 if (Log.isLoggable(TAG, Log.DEBUG)) { 63 Log.d(TAG, "onBind with action: LOCAL_INCALL_SERVICE_BIND_ACTION," + 64 " returning StreamInCallServiceBinder"); 65 } 66 return mBinder; 67 } 68 if (Log.isLoggable(TAG, Log.DEBUG)) { 69 Log.d(TAG, "onBind without action specified, returning InCallService"); 70 } 71 return super.onBind(intent); 72 } 73 74 @Override 75 public void onCallAdded(Call call) { 76 if (mCallback != null) { 77 mCallback.onCallAdded(call); 78 } 79 } 80 81 @Override 82 public void onCallRemoved(Call call) { 83 if (mCallback != null) { 84 mCallback.onCallRemoved(call); 85 } 86 } 87 88 @Override 89 public void onCallAudioStateChanged(CallAudioState audioState) { 90 if (mCallback != null) { 91 mCallback.onCallAudioStateChanged(audioState); 92 } 93 super.onCallAudioStateChanged(audioState); 94 } 95 96 public boolean isMuted() { 97 CallAudioState audioState = getCallAudioState(); 98 return audioState != null && audioState.isMuted(); 99 } 100 } 101