1 /* 2 * Copyright (C) 2019 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.car.dialer.livedata; 18 19 import androidx.lifecycle.MediatorLiveData; 20 21 import com.android.car.dialer.log.L; 22 import com.android.car.dialer.telecom.UiCallManager; 23 import com.android.car.telephony.common.CallDetail; 24 25 import dagger.assisted.Assisted; 26 import dagger.assisted.AssistedFactory; 27 import dagger.assisted.AssistedInject; 28 29 /** 30 * Provides the current connecting audio route. 31 */ 32 public class AudioRouteLiveData extends MediatorLiveData<Integer> { 33 private static final String TAG = "CD.AudioRouteLiveData"; 34 35 private final UiCallManager mUiCallManager; 36 private final CallDetailLiveData mPrimaryCallDetailLiveData; 37 38 @AssistedInject AudioRouteLiveData( @ssisted CallDetailLiveData primaryCallDetailLiveData, UiCallManager callManager)39 public AudioRouteLiveData( 40 @Assisted CallDetailLiveData primaryCallDetailLiveData, 41 UiCallManager callManager) { 42 mUiCallManager = callManager; 43 mPrimaryCallDetailLiveData = primaryCallDetailLiveData; 44 45 addSource(mPrimaryCallDetailLiveData, this::updateOngoingCallAudioRoute); 46 } 47 48 @Override onActive()49 protected void onActive() { 50 super.onActive(); 51 updateAudioRoute(); 52 } 53 updateAudioRoute()54 private void updateAudioRoute() { 55 CallDetail primaryCallDetail = mPrimaryCallDetailLiveData.getValue(); 56 updateOngoingCallAudioRoute(primaryCallDetail); 57 } 58 updateOngoingCallAudioRoute(CallDetail callDetail)59 private void updateOngoingCallAudioRoute(CallDetail callDetail) { 60 if (callDetail == null) { 61 // Phone call might have disconnected, no action. 62 return; 63 } 64 int state = callDetail.getScoState(); 65 int audioRoute = mUiCallManager.getAudioRoute(state); 66 if (getValue() == null || audioRoute != getValue()) { 67 L.d(TAG, "updateAudioRoute to %s", audioRoute); 68 setValue(audioRoute); 69 } 70 } 71 72 /** 73 * Factory to create {@link AudioRouteLiveData} instances via the {@link AssistedInject} 74 * constructor. 75 */ 76 @AssistedFactory 77 public interface Factory { 78 /** Creates an {@link AudioRouteLiveData} instance. */ create(CallDetailLiveData primaryCallDetailLiveData)79 AudioRouteLiveData create(CallDetailLiveData primaryCallDetailLiveData); 80 } 81 } 82