1/*
2 * Copyright (C) 2013 Google 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 are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "config.h"
32#include "core/html/track/TrackBase.h"
33
34#include "core/html/HTMLMediaElement.h"
35
36namespace blink {
37
38static blink::WebMediaPlayer::TrackId nextTrackId()
39{
40    static blink::WebMediaPlayer::TrackId next = 0;
41    return ++next;
42}
43
44TrackBase::TrackBase(Type type, const AtomicString& label, const AtomicString& language, const String& id)
45    : m_trackId(nextTrackId())
46    , m_type(type)
47    , m_label(label)
48    , m_language(language)
49    , m_id(id)
50    , m_mediaElement(nullptr)
51{
52}
53
54TrackBase::~TrackBase()
55{
56#if !ENABLE(OILPAN)
57    ASSERT(!m_mediaElement);
58#endif
59}
60
61
62Node* TrackBase::owner() const
63{
64    return m_mediaElement;
65}
66
67void TrackBase::trace(Visitor* visitor)
68{
69    visitor->trace(m_mediaElement);
70}
71
72void TrackBase::setKind(const AtomicString& kind)
73{
74    if (isValidKind(kind))
75        m_kind = kind;
76    else
77        m_kind = defaultKind();
78}
79
80} // namespace blink
81