| /* |
| * Copyright (C) 2016 Google Inc. |
| * |
| * 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.googlecode.android_scripting.facade.media; |
| |
| import android.app.Service; |
| import android.content.Context; |
| import android.media.AudioManager; |
| import android.media.AudioManager.OnAudioFocusChangeListener; |
| |
| import com.googlecode.android_scripting.facade.EventFacade; |
| import com.googlecode.android_scripting.facade.FacadeManager; |
| import com.googlecode.android_scripting.jsonrpc.RpcReceiver; |
| import com.googlecode.android_scripting.rpc.Rpc; |
| |
| public class AudioManagerFacade extends RpcReceiver { |
| |
| private final Service mService; |
| private final EventFacade mEventFacade; |
| private final AudioManager mAudio; |
| private final OnAudioFocusChangeListener mFocusChangeListener; |
| private boolean mIsFocused; |
| |
| public AudioManagerFacade(FacadeManager manager) { |
| super(manager); |
| mService = manager.getService(); |
| mEventFacade = manager.getReceiver(EventFacade.class); |
| mAudio = (AudioManager) mService.getSystemService(Context.AUDIO_SERVICE); |
| mFocusChangeListener = new OnAudioFocusChangeListener() { |
| public void onAudioFocusChange(int focusChange) { |
| if (focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK) { |
| mIsFocused = false; |
| } else if (focusChange == AudioManager.AUDIOFOCUS_GAIN) { |
| mIsFocused = true; |
| } |
| } |
| }; |
| } |
| |
| @Rpc(description = "Checks whether any music is active.") |
| public Boolean audioIsMusicActive() { |
| return mAudio.isMusicActive(); |
| } |
| |
| @Rpc(description = "Checks whether A2DP audio routing to the Bluetooth headset is on or off.") |
| public Boolean audioIsBluetoothA2dpOn() { |
| return mAudio.isBluetoothA2dpOn(); |
| } |
| |
| @Rpc(description = "Request audio focus for sl4a.") |
| public Boolean audioRequestAudioFocus() { |
| int status = mAudio.requestAudioFocus(mFocusChangeListener, |
| AudioManager.STREAM_MUSIC, |
| AudioManager.AUDIOFOCUS_GAIN_TRANSIENT_MAY_DUCK); |
| if (status == AudioManager.AUDIOFOCUS_REQUEST_GRANTED) { |
| mIsFocused = true; |
| return true; |
| } |
| mIsFocused = false; |
| return false; |
| } |
| |
| @Rpc(description = "Whether sl4a has the audio focus or not.") |
| public Boolean audioIsFocused() { |
| return mIsFocused; |
| } |
| |
| @Override |
| public void shutdown() { |
| mAudio.abandonAudioFocus(mFocusChangeListener); |
| } |
| } |