Home | History | Annotate | Download | only in incallui 
      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 
     17 package com.android.incallui;
     18 
     19 import com.google.common.collect.Lists;
     20 
     21 import android.telecom.AudioState;
     22 import android.telecom.Phone;
     23 
     24 import java.util.List;
     25 
     26 /**
     27  * Proxy class for getting and setting the audio mode.
     28  */
     29 /* package */ class AudioModeProvider implements InCallPhoneListener {
     30 
     31     static final int AUDIO_MODE_INVALID = 0;
     32 
     33     private static AudioModeProvider sAudioModeProvider = new AudioModeProvider();
     34     private int mAudioMode = AudioState.ROUTE_EARPIECE;
     35     private boolean mMuted = false;
     36     private int mSupportedModes = AudioState.ROUTE_ALL;
     37     private final List<AudioModeListener> mListeners = Lists.newArrayList();
     38     private Phone mPhone;
     39 
     40     private Phone.Listener mPhoneListener = new Phone.Listener() {
     41         @Override
     42         public void onAudioStateChanged(Phone phone, AudioState audioState) {
     43             onAudioModeChange(audioState.getRoute(), audioState.isMuted());
     44             onSupportedAudioModeChange(audioState.getSupportedRouteMask());
     45         }
     46     };
     47 
     48     public static AudioModeProvider getInstance() {
     49         return sAudioModeProvider;
     50     }
     51 
     52     @Override
     53     public void setPhone(Phone phone) {
     54         mPhone = phone;
     55         mPhone.addListener(mPhoneListener);
     56     }
     57 
     58     @Override
     59     public void clearPhone() {
     60         mPhone.removeListener(mPhoneListener);
     61         mPhone = null;
     62     }
     63 
     64     public void onAudioModeChange(int newMode, boolean muted) {
     65         if (mAudioMode != newMode) {
     66             mAudioMode = newMode;
     67             for (AudioModeListener l : mListeners) {
     68                 l.onAudioMode(mAudioMode);
     69             }
     70         }
     71 
     72         if (mMuted != muted) {
     73             mMuted = muted;
     74             for (AudioModeListener l : mListeners) {
     75                 l.onMute(mMuted);
     76             }
     77         }
     78     }
     79 
     80     public void onSupportedAudioModeChange(int newModeMask) {
     81         mSupportedModes = newModeMask;
     82 
     83         for (AudioModeListener l : mListeners) {
     84             l.onSupportedAudioMode(mSupportedModes);
     85         }
     86     }
     87 
     88     public void addListener(AudioModeListener listener) {
     89         if (!mListeners.contains(listener)) {
     90             mListeners.add(listener);
     91             listener.onSupportedAudioMode(mSupportedModes);
     92             listener.onAudioMode(mAudioMode);
     93             listener.onMute(mMuted);
     94         }
     95     }
     96 
     97     public void removeListener(AudioModeListener listener) {
     98         if (mListeners.contains(listener)) {
     99             mListeners.remove(listener);
    100         }
    101     }
    102 
    103     public int getSupportedModes() {
    104         return mSupportedModes;
    105     }
    106 
    107     public int getAudioMode() {
    108         return mAudioMode;
    109     }
    110 
    111     public boolean getMute() {
    112         return mMuted;
    113     }
    114 
    115     /* package */ interface AudioModeListener {
    116         void onAudioMode(int newMode);
    117         void onMute(boolean muted);
    118         void onSupportedAudioMode(int modeMask);
    119     }
    120 }
    121