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1 /* | 1 /* |
2 * Copyright (C) 2011 Google Inc. All rights reserved. | 2 * Copyright (C) 2011 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
(...skipping 17 matching lines...) Expand all Loading... |
28 #include "core/dom/ElementTraversal.h" | 28 #include "core/dom/ElementTraversal.h" |
29 #include "core/html/HTMLTrackElement.h" | 29 #include "core/html/HTMLTrackElement.h" |
30 #include "core/html/track/vtt/VTTRegionList.h" | 30 #include "core/html/track/vtt/VTTRegionList.h" |
31 | 31 |
32 namespace blink { | 32 namespace blink { |
33 | 33 |
34 LoadableTextTrack::LoadableTextTrack(HTMLTrackElement* track) | 34 LoadableTextTrack::LoadableTextTrack(HTMLTrackElement* track) |
35 : TextTrack(subtitlesKeyword(), emptyAtom, emptyAtom, emptyAtom, TrackElemen
t) | 35 : TextTrack(subtitlesKeyword(), emptyAtom, emptyAtom, emptyAtom, TrackElemen
t) |
36 , m_trackElement(track) | 36 , m_trackElement(track) |
37 { | 37 { |
| 38 DCHECK(m_trackElement); |
38 } | 39 } |
39 | 40 |
40 LoadableTextTrack::~LoadableTextTrack() | 41 LoadableTextTrack::~LoadableTextTrack() |
41 { | 42 { |
42 } | 43 } |
43 | 44 |
44 bool LoadableTextTrack::isDefault() const | 45 bool LoadableTextTrack::isDefault() const |
45 { | 46 { |
46 ASSERT(m_trackElement); | |
47 return m_trackElement->fastHasAttribute(HTMLNames::defaultAttr); | 47 return m_trackElement->fastHasAttribute(HTMLNames::defaultAttr); |
48 } | 48 } |
49 | 49 |
50 void LoadableTextTrack::setMode(const AtomicString& mode) | 50 void LoadableTextTrack::setMode(const AtomicString& mode) |
51 { | 51 { |
52 TextTrack::setMode(mode); | 52 TextTrack::setMode(mode); |
53 if (m_trackElement->getReadyState() == HTMLTrackElement::NONE) | 53 if (m_trackElement->getReadyState() == HTMLTrackElement::NONE) |
54 m_trackElement->scheduleLoad(); | 54 m_trackElement->scheduleLoad(); |
55 } | 55 } |
56 | 56 |
57 void LoadableTextTrack::addRegions(const HeapVector<Member<VTTRegion>>& newRegio
ns) | 57 void LoadableTextTrack::addRegions(const HeapVector<Member<VTTRegion>>& newRegio
ns) |
58 { | 58 { |
59 for (size_t i = 0; i < newRegions.size(); ++i) { | 59 for (size_t i = 0; i < newRegions.size(); ++i) { |
60 newRegions[i]->setTrack(this); | 60 newRegions[i]->setTrack(this); |
61 regions()->add(newRegions[i]); | 61 regions()->add(newRegions[i]); |
62 } | 62 } |
63 } | 63 } |
64 | 64 |
65 size_t LoadableTextTrack::trackElementIndex() | 65 size_t LoadableTextTrack::trackElementIndex() const |
66 { | 66 { |
67 ASSERT(m_trackElement); | 67 // Count the number of preceding <track> elements (== the index.) |
68 ASSERT(m_trackElement->parentNode()); | 68 size_t index = 0; |
| 69 for (const HTMLTrackElement* track = Traversal<HTMLTrackElement>::previousSi
bling(*m_trackElement); |
| 70 track; |
| 71 track = Traversal<HTMLTrackElement>::previousSibling(*track)) |
| 72 ++index; |
69 | 73 |
70 size_t index = 0; | 74 return index; |
71 for (HTMLTrackElement* track = Traversal<HTMLTrackElement>::firstChild(*m_tr
ackElement->parentNode()); track; track = Traversal<HTMLTrackElement>::nextSibli
ng(*track)) { | |
72 if (!track->parentNode()) | |
73 continue; | |
74 if (track == m_trackElement) | |
75 return index; | |
76 ++index; | |
77 } | |
78 ASSERT_NOT_REACHED(); | |
79 | |
80 return 0; | |
81 } | 75 } |
82 | 76 |
83 DEFINE_TRACE(LoadableTextTrack) | 77 DEFINE_TRACE(LoadableTextTrack) |
84 { | 78 { |
85 visitor->trace(m_trackElement); | 79 visitor->trace(m_trackElement); |
86 TextTrack::trace(visitor); | 80 TextTrack::trace(visitor); |
87 } | 81 } |
88 | 82 |
89 } // namespace blink | 83 } // namespace blink |
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