1 /* 2 * Copyright (C) 2024 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 android.telecom.CallEndpoint; 20 21 import java.util.Set; 22 23 /** 24 * android.telecom.Call backed Services (i.e. ConnectionService, TransactionalService, etc.) that 25 * have callbacks that can be executed before the service is set (within the Call object) should 26 * implement this interface in order for clients to receive the callback. 27 * 28 * It has been shown that clients can miss important callback information (e.g. available audio 29 * endpoints) if the service is null within the call at the time the callback is sent. This is a 30 * way to eliminate the timing issue and for clients to receive all callbacks. 31 */ 32 public interface CallSourceService { onMuteStateChanged(Call activeCall, boolean isMuted)33 void onMuteStateChanged(Call activeCall, boolean isMuted); 34 onCallEndpointChanged(Call activeCall, CallEndpoint callEndpoint)35 void onCallEndpointChanged(Call activeCall, CallEndpoint callEndpoint); 36 onAvailableCallEndpointsChanged(Call activeCall, Set<CallEndpoint> availableCallEndpoints)37 void onAvailableCallEndpointsChanged(Call activeCall, Set<CallEndpoint> availableCallEndpoints); 38 onVideoStateChanged(Call activeCall, int videoState)39 void onVideoStateChanged(Call activeCall, int videoState); 40 } 41