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/*
* Copyright (C) 2013 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.incallui;
import android.telecom.CallAudioState;
import com.google.common.collect.Lists;
import java.util.List;
/**
* Proxy class for getting and setting the audio mode.
*/
public class AudioModeProvider {
static final int AUDIO_MODE_INVALID = 0;
private static AudioModeProvider sAudioModeProvider = new AudioModeProvider();
private int mAudioMode = CallAudioState.ROUTE_EARPIECE;
private boolean mMuted = false;
private int mSupportedModes = CallAudioState.ROUTE_EARPIECE
| CallAudioState.ROUTE_BLUETOOTH | CallAudioState.ROUTE_WIRED_HEADSET
| CallAudioState.ROUTE_SPEAKER;
private final List<AudioModeListener> mListeners = Lists.newArrayList();
public static AudioModeProvider getInstance() {
return sAudioModeProvider;
}
public void onAudioStateChanged(boolean isMuted, int route, int supportedRouteMask) {
onAudioModeChange(route, isMuted);
onSupportedAudioModeChange(supportedRouteMask);
}
public void onAudioModeChange(int newMode, boolean muted) {
if (mAudioMode != newMode) {
mAudioMode = newMode;
for (AudioModeListener l : mListeners) {
l.onAudioMode(mAudioMode);
}
}
if (mMuted != muted) {
mMuted = muted;
for (AudioModeListener l : mListeners) {
l.onMute(mMuted);
}
}
}
public void onSupportedAudioModeChange(int newModeMask) {
mSupportedModes = newModeMask;
for (AudioModeListener l : mListeners) {
l.onSupportedAudioMode(mSupportedModes);
}
}
public void addListener(AudioModeListener listener) {
if (!mListeners.contains(listener)) {
mListeners.add(listener);
listener.onSupportedAudioMode(mSupportedModes);
listener.onAudioMode(mAudioMode);
listener.onMute(mMuted);
}
}
public void removeListener(AudioModeListener listener) {
if (mListeners.contains(listener)) {
mListeners.remove(listener);
}
}
public int getSupportedModes() {
return mSupportedModes;
}
public int getAudioMode() {
return mAudioMode;
}
public boolean getMute() {
return mMuted;
}
/* package */ interface AudioModeListener {
void onAudioMode(int newMode);
void onMute(boolean muted);
void onSupportedAudioMode(int modeMask);
}
}
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