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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 "config.h"
#if ENABLE(VIDEO_TRACK)
#include "TextTrackCueList.h"
namespace WebCore {
TextTrackCueList::TextTrackCueList()
{
}
unsigned long TextTrackCueList::length() const
{
return m_list.size();
}
TextTrackCue* TextTrackCueList::item(unsigned index) const
{
if (index < m_list.size())
return m_list[index].get();
return 0;
}
TextTrackCue* TextTrackCueList::getCueById(const String& id) const
{
for (size_t i = 0; i < m_list.size(); ++i) {
if (m_list[i]->id() == id)
return m_list[i].get();
}
return 0;
}
TextTrackCueList* TextTrackCueList::activeCues()
{
if (!m_activeCues)
m_activeCues = create();
m_activeCues->clear();
for (size_t i = 0; i < m_list.size(); ++i) {
RefPtr<TextTrackCue> cue = m_list[i];
if (cue->isActive())
m_activeCues->add(cue);
}
return m_activeCues.get();
}
bool TextTrackCueList::add(PassRefPtr<TextTrackCue> cue)
{
return add(cue, 0, m_list.size());
}
bool TextTrackCueList::add(PassRefPtr<TextTrackCue> prpCue, size_t start, size_t end)
{
ASSERT(start <= m_list.size());
ASSERT(end <= m_list.size());
// Maintain text track cue order:
// http://www.whatwg.org/specs/web-apps/current-work/#text-track-cue-order
RefPtr<TextTrackCue> cue = prpCue;
if (start == end) {
if (!m_list.isEmpty() && (m_list[start - 1].get() == cue.get()))
return false;
m_list.insert(start, cue);
return true;
}
size_t index = (start + end) / 2;
if (cue->startTime() < m_list[index]->startTime() || (cue->startTime() == m_list[index]->startTime() && cue->endTime() > m_list[index]->endTime()))
return add(cue.release(), start, index);
return add(cue.release(), index + 1, end);
}
bool TextTrackCueList::remove(TextTrackCue* cue)
{
size_t index = m_list.find(cue);
if (index == notFound)
return false;
cue->setIsActive(false);
m_list.remove(index);
return true;
}
bool TextTrackCueList::contains(TextTrackCue* cue) const
{
return m_list.contains(cue);
}
void TextTrackCueList::clear()
{
m_list.clear();
}
} // namespace WebCore
#endif
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