| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.android.car.audio; |
| |
| import android.annotation.NonNull; |
| import android.car.media.ICarVolumeCallback; |
| import android.os.IBinder; |
| import android.os.RemoteException; |
| import android.util.Slog; |
| |
| import com.android.car.BinderInterfaceContainer; |
| import com.android.car.CarLog; |
| |
| /** |
| * Manages callbacks for changes in car volume |
| */ |
| class CarVolumeCallbackHandler { |
| private final BinderInterfaceContainer<ICarVolumeCallback> mVolumeCallbackContainer = |
| new BinderInterfaceContainer<>(); |
| |
| void release() { |
| mVolumeCallbackContainer.clear(); |
| } |
| |
| void onVolumeGroupChange(int zoneId, int groupId, int flags) { |
| for (BinderInterfaceContainer.BinderInterface<ICarVolumeCallback> callback : |
| mVolumeCallbackContainer.getInterfaces()) { |
| try { |
| callback.binderInterface.onGroupVolumeChanged(zoneId, groupId, flags); |
| } catch (RemoteException e) { |
| Slog.e(CarLog.TAG_AUDIO, "Failed to callback onGroupVolumeChanged", e); |
| } |
| } |
| } |
| |
| void onMasterMuteChanged(int zoneId, int flags) { |
| for (BinderInterfaceContainer.BinderInterface<ICarVolumeCallback> callback : |
| mVolumeCallbackContainer.getInterfaces()) { |
| try { |
| callback.binderInterface.onMasterMuteChanged(zoneId, flags); |
| } catch (RemoteException e) { |
| Slog.e(CarLog.TAG_AUDIO, "Failed to callback onMasterMuteChanged", e); |
| } |
| } |
| } |
| |
| public void registerCallback(@NonNull IBinder binder) { |
| mVolumeCallbackContainer.addBinder(ICarVolumeCallback.Stub.asInterface(binder)); |
| } |
| |
| public void unregisterCallback(@NonNull IBinder binder) { |
| mVolumeCallbackContainer.removeBinder(ICarVolumeCallback.Stub.asInterface(binder)); |
| } |
| |
| public void onGroupMuteChange(int zoneId, int groupId, int flags) { |
| for (BinderInterfaceContainer.BinderInterface<ICarVolumeCallback> callback : |
| mVolumeCallbackContainer.getInterfaces()) { |
| try { |
| callback.binderInterface.onGroupMuteChanged(zoneId, groupId, flags); |
| } catch (RemoteException e) { |
| Slog.e(CarLog.TAG_AUDIO, "Failed to callback onGroupMuteChanged", e); |
| } |
| } |
| } |
| } |