AudioModeProvider.java revision 9de3d7c5188c02cabf03799f87d494ee7dc702cb 
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;
32    private int mAudioMode = AudioMode.EARPIECE;
33    private int mSupportedModes = AudioMode.ALL_MODES;
34    private final List<AudioModeListener> mListeners = Lists.newArrayList();
35
36    public AudioModeProvider() {
37    }
38
39    public void onAudioModeChange(int newMode) {
40        mAudioMode = newMode;
41
42        for (AudioModeListener l : mListeners) {
43            l.onAudioMode(mAudioMode);
44        }
45    }
46
47    public void onSupportedAudioModeChange(int newModeMask) {
48        mSupportedModes = newModeMask;
49
50        for (AudioModeListener l : mListeners) {
51            l.onSupportedAudioMode(mSupportedModes);
52        }
53    }
54
55    public void addListener(AudioModeListener listener) {
56        if (!mListeners.contains(listener)) {
57            mListeners.add(listener);
58            listener.onSupportedAudioMode(mSupportedModes);
59            listener.onAudioMode(mAudioMode);
60        }
61    }
62
63    public void removeListener(AudioModeListener listener) {
64        if (mListeners.contains(listener)) {
65            mListeners.remove(listener);
66        }
67    }
68
69    public int getSupportedModes() {
70        return mSupportedModes;
71    }
72
73    public int getAudioMode() {
74        return mAudioMode;
75    }
76
77    /* package */ interface AudioModeListener {
78        void onAudioMode(int newMode);
79        void onSupportedAudioMode(int modeMask);
80    }
81}
82