1/*
2 * Copyright (C) 2011 Google Inc. All rights reserved.
3 * Copyright (C) 2011-2017 Apple Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#pragma once
28
29#if ENABLE(VIDEO_TRACK)
30
31#include "TextTrack.h"
32#include "TextTrackLoader.h"
33
34namespace WebCore {
35
36class HTMLTrackElement;
37
38class LoadableTextTrack final : public TextTrack, private TextTrackLoaderClient {
39 WTF_MAKE_ISO_ALLOCATED(LoadableTextTrack);
40public:
41 static Ref<LoadableTextTrack> create(HTMLTrackElement& track, const String& kind, const String& label, const String& language)
42 {
43 return adoptRef(*new LoadableTextTrack(track, kind, label, language));
44 }
45
46 void scheduleLoad(const URL&);
47
48 size_t trackElementIndex();
49 HTMLTrackElement* trackElement() const { return m_trackElement; }
50 void clearElement() { m_trackElement = nullptr; }
51
52 void setIsDefault(bool isDefault) final { m_isDefault = isDefault; }
53
54private:
55 LoadableTextTrack(HTMLTrackElement&, const String& kind, const String& label, const String& language);
56
57 void newCuesAvailable(TextTrackLoader&) final;
58 void cueLoadingCompleted(TextTrackLoader&, bool loadingFailed) final;
59 void newRegionsAvailable(TextTrackLoader&) final;
60 void newStyleSheetsAvailable(TextTrackLoader&) final;
61
62 AtomicString id() const final;
63 bool isDefault() const final { return m_isDefault; }
64 Element* element() final;
65
66 void loadTimerFired();
67
68#if !RELEASE_LOG_DISABLED
69 const char* logClassName() const override { return "LoadableTextTrack"; }
70#endif
71
72 HTMLTrackElement* m_trackElement;
73 Timer m_loadTimer;
74 std::unique_ptr<TextTrackLoader> m_loader;
75 URL m_url;
76 bool m_isDefault { false };
77};
78
79} // namespace WebCore
80
81SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::LoadableTextTrack)
82 static bool isType(const WebCore::TextTrack& track) { return track.trackType() == WebCore::TextTrack::TrackElement; }
83SPECIALIZE_TYPE_TRAITS_END()
84
85#endif // ENABLE(VIDEO_TRACK)
86