bool TextTrackCue::hasEquivalentStartTime(const TextTrackCue& cue) const
{
MediaTime startTimeVariance = MediaTime::zeroTime();
if (track())
startTimeVariance = track()->startTimeVariance();
else if (cue.track())
startTimeVariance = cue.track()->startTimeVariance();
return abs(abs(startMediaTime()) - abs(cue.startMediaTime())) <= startTimeVariance;
}
void VTTCue::updateDisplayTree(const MediaTime& movieTime)
{
// The display tree may contain WebVTT timestamp objects representing
// timestamps (processing instructions), along with displayable nodes.
if (!track()->isRendered())
return;
// Clear the contents of the set.
m_cueHighlightBox->removeChildren();
// Update the two sets containing past and future WebVTT objects.
RefPtr<DocumentFragment> referenceTree = createCueRenderingTree();
if (!referenceTree)
return;
markFutureAndPastNodes(referenceTree.get(), startMediaTime(), movieTime);
m_cueHighlightBox->appendChild(referenceTree.releaseNonNull());
}
bool TextTrackCue::isOrderedBefore(const TextTrackCue* other) const
{
return startMediaTime() < other->startMediaTime() || (startMediaTime() == other->startMediaTime() && endMediaTime() > other->endMediaTime());
}
