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/*
* Copyright (C) 2011 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "third_party/blink/renderer/core/html/track/loadable_text_track.h"
#include "third_party/blink/renderer/core/dom/element_traversal.h"
#include "third_party/blink/renderer/core/html/track/html_track_element.h"
namespace blink {
LoadableTextTrack::LoadableTextTrack(HTMLTrackElement* track)
: TextTrack(SubtitlesKeyword(),
g_empty_atom,
g_empty_atom,
g_empty_atom,
kTrackElement),
track_element_(track) {
DCHECK(track_element_);
}
LoadableTextTrack::~LoadableTextTrack() = default;
bool LoadableTextTrack::IsDefault() const {
return track_element_->FastHasAttribute(html_names::kDefaultAttr);
}
void LoadableTextTrack::setMode(const AtomicString& mode) {
TextTrack::setMode(mode);
if (track_element_->getReadyState() == HTMLTrackElement::kNone)
track_element_->ScheduleLoad();
}
wtf_size_t LoadableTextTrack::TrackElementIndex() const {
// Count the number of preceding <track> elements (== the index.)
wtf_size_t index = 0;
for (const HTMLTrackElement* track =
Traversal<HTMLTrackElement>::PreviousSibling(*track_element_);
track; track = Traversal<HTMLTrackElement>::PreviousSibling(*track))
++index;
return index;
}
void LoadableTextTrack::Trace(Visitor* visitor) {
visitor->Trace(track_element_);
TextTrack::Trace(visitor);
}
} // namespace blink