1/*
2 * Copyright (C) 2012 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef AudioTrackPrivate_h
27#define AudioTrackPrivate_h
28
29#include <wtf/Forward.h>
30#include <wtf/Noncopyable.h>
31#include <wtf/RefCounted.h>
32#include <wtf/text/AtomicString.h>
33
34#if ENABLE(VIDEO_TRACK)
35
36namespace WebCore {
37
38class AudioTrackPrivate;
39
40class AudioTrackPrivateClient {
41public:
42    virtual ~AudioTrackPrivateClient() { }
43    virtual void willRemoveAudioTrackPrivate(AudioTrackPrivate*) = 0;
44};
45
46class AudioTrackPrivate : public RefCounted<AudioTrackPrivate> {
47    WTF_MAKE_NONCOPYABLE(AudioTrackPrivate); WTF_MAKE_FAST_ALLOCATED;
48public:
49    static PassRefPtr<AudioTrackPrivate> create()
50    {
51        return adoptRef(new AudioTrackPrivate());
52    }
53    virtual ~AudioTrackPrivate() { }
54
55    void setClient(AudioTrackPrivateClient* client) { m_client = client; }
56    AudioTrackPrivateClient* client() { return m_client; }
57
58    virtual void setEnabled(bool enabled) { m_enabled = enabled; };
59    virtual bool enabled() const { return m_enabled; }
60
61    enum Kind { Alternative, Description, Main, MainDesc, Translation, Commentary, None };
62    virtual Kind kind() const { return None; }
63
64    virtual AtomicString id() const { return emptyAtom; }
65    virtual AtomicString label() const { return emptyAtom; }
66    virtual AtomicString language() const { return emptyAtom; }
67
68    virtual int audioTrackIndex() const { return 0; }
69
70    void willBeRemoved()
71    {
72        if (m_client)
73            m_client->willRemoveAudioTrackPrivate(this);
74    }
75
76protected:
77    AudioTrackPrivate()
78        : m_enabled(false)
79    {
80    }
81
82private:
83    AudioTrackPrivateClient* m_client;
84    bool m_enabled;
85};
86
87} // namespace WebCore
88
89#endif
90#endif
91