1/* 2 * Copyright (C) 2013 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 17package com.android.incallui; 18 19import com.google.android.collect.Lists; 20 21import com.android.services.telephony.common.AudioMode; 22 23import java.util.List; 24 25 26/** 27 * Proxy class for getting and setting the audio mode. 28 */ 29/* package */ class AudioModeProvider { 30 31 private static AudioModeProvider sAudioModeProvider = new AudioModeProvider(); 32 private int mAudioMode = AudioMode.EARPIECE; 33 private boolean mMuted = false; 34 private int mSupportedModes = AudioMode.ALL_MODES; 35 private final List<AudioModeListener> mListeners = Lists.newArrayList(); 36 37 public static AudioModeProvider getInstance() { 38 return sAudioModeProvider; 39 } 40 41 public void onAudioModeChange(int newMode, boolean muted) { 42 if (mAudioMode != newMode) { 43 mAudioMode = newMode; 44 for (AudioModeListener l : mListeners) { 45 l.onAudioMode(mAudioMode); 46 } 47 } 48 49 if (mMuted != muted) { 50 mMuted = muted; 51 for (AudioModeListener l : mListeners) { 52 l.onMute(mMuted); 53 } 54 } 55 } 56 57 public void onSupportedAudioModeChange(int newModeMask) { 58 mSupportedModes = newModeMask; 59 60 for (AudioModeListener l : mListeners) { 61 l.onSupportedAudioMode(mSupportedModes); 62 } 63 } 64 65 public void addListener(AudioModeListener listener) { 66 if (!mListeners.contains(listener)) { 67 mListeners.add(listener); 68 listener.onSupportedAudioMode(mSupportedModes); 69 listener.onAudioMode(mAudioMode); 70 listener.onMute(mMuted); 71 } 72 } 73 74 public void removeListener(AudioModeListener listener) { 75 if (mListeners.contains(listener)) { 76 mListeners.remove(listener); 77 } 78 } 79 80 public int getSupportedModes() { 81 return mSupportedModes; 82 } 83 84 public int getAudioMode() { 85 return mAudioMode; 86 } 87 88 public boolean getMute() { 89 return mMuted; 90 } 91 92 /* package */ interface AudioModeListener { 93 void onAudioMode(int newMode); 94 void onMute(boolean muted); 95 void onSupportedAudioMode(int modeMask); 96 } 97} 98