1/*
2 * Copyright (C) 2011, 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 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 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#include "config.h"
27
28#if ENABLE(VIDEO_TRACK)
29
30#include "VideoTrackList.h"
31
32#include "VideoTrack.h"
33
34namespace WebCore {
35
36VideoTrackList::VideoTrackList(HTMLMediaElement* element, ScriptExecutionContext* context)
37 : TrackListBase(element, context)
38{
39}
40
41VideoTrackList::~VideoTrackList() = default;
42
43void VideoTrackList::append(Ref<VideoTrack>&& track)
44{
45 // Insert tracks in the media file order.
46 size_t index = track->inbandTrackIndex();
47 size_t insertionIndex;
48 for (insertionIndex = 0; insertionIndex < m_inbandTracks.size(); ++insertionIndex) {
49 auto& otherTrack = downcast<VideoTrack>(*m_inbandTracks[insertionIndex]);
50 if (otherTrack.inbandTrackIndex() > index)
51 break;
52 }
53 m_inbandTracks.insert(insertionIndex, track.ptr());
54
55 ASSERT(!track->mediaElement() || track->mediaElement() == mediaElement());
56 track->setMediaElement(mediaElement());
57
58 scheduleAddTrackEvent(WTFMove(track));
59}
60
61VideoTrack* VideoTrackList::item(unsigned index) const
62{
63 if (index < m_inbandTracks.size())
64 return downcast<VideoTrack>(m_inbandTracks[index].get());
65 return nullptr;
66}
67
68VideoTrack* VideoTrackList::getTrackById(const AtomicString& id) const
69{
70 for (auto& inbandTracks : m_inbandTracks) {
71 auto& track = downcast<VideoTrack>(*inbandTracks);
72 if (track.id() == id)
73 return &track;
74 }
75 return nullptr;
76}
77
78int VideoTrackList::selectedIndex() const
79{
80 // 4.8.10.10.1 AudioTrackList and VideoTrackList objects
81 // The VideoTrackList.selectedIndex attribute must return the index of the
82 // currently selected track, if any. If the VideoTrackList object does not
83 // currently represent any tracks, or if none of the tracks are selected,
84 // it must instead return −1.
85 for (unsigned i = 0; i < length(); ++i) {
86 if (downcast<VideoTrack>(*m_inbandTracks[i]).selected())
87 return i;
88 }
89 return -1;
90}
91
92EventTargetInterface VideoTrackList::eventTargetInterface() const
93{
94 return VideoTrackListEventTargetInterfaceType;
95}
96
97const char* VideoTrackList::activeDOMObjectName() const
98{
99 return "VideoTrackList";
100}
101
102} // namespace WebCore
103#endif
104