1/*
2 * Copyright (C) 2011 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
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#ifndef LoadableTextTrack_h
27#define LoadableTextTrack_h
28
29#if ENABLE(VIDEO_TRACK)
30
31#include "TextTrack.h"
32#include "TextTrackLoader.h"
33#include <wtf/Vector.h>
34
35namespace WebCore {
36
37class HTMLTrackElement;
38class LoadableTextTrack;
39
40class LoadableTextTrack : public TextTrack, private TextTrackLoaderClient {
41public:
42    static PassRefPtr<LoadableTextTrack> create(HTMLTrackElement* track, const String& kind, const String& label, const String& language)
43    {
44        return adoptRef(new LoadableTextTrack(track, kind, label, language));
45    }
46    virtual ~LoadableTextTrack();
47
48    void scheduleLoad(const URL&);
49
50    virtual void clearClient() override;
51
52    virtual AtomicString id() const override;
53
54    size_t trackElementIndex();
55    HTMLTrackElement* trackElement() { return m_trackElement; }
56    void setTrackElement(HTMLTrackElement*);
57    virtual Element* element() override;
58
59    virtual bool isDefault() const override { return m_isDefault; }
60    virtual void setIsDefault(bool isDefault) override  { m_isDefault = isDefault; }
61
62private:
63    // TextTrackLoaderClient
64    virtual void newCuesAvailable(TextTrackLoader*) override;
65    virtual void cueLoadingCompleted(TextTrackLoader*, bool loadingFailed) override;
66#if ENABLE(WEBVTT_REGIONS)
67    virtual void newRegionsAvailable(TextTrackLoader*);
68#endif
69
70    LoadableTextTrack(HTMLTrackElement*, const String& kind, const String& label, const String& language);
71
72    void loadTimerFired(Timer<LoadableTextTrack>&);
73
74    HTMLTrackElement* m_trackElement;
75    Timer<LoadableTextTrack> m_loadTimer;
76    std::unique_ptr<TextTrackLoader> m_loader;
77    URL m_url;
78    bool m_isDefault;
79};
80} // namespace WebCore
81
82#endif
83#endif
84