PassRefPtrWillBeRawPtr<VTTCueBox> VTTCue::getDisplayTree()
{
ASSERT(track() && track()->isRendered() && isActive());
if (!m_displayTree) {
m_displayTree = VTTCueBox::create(document(), this);
m_displayTree->appendChild(m_cueBackgroundBox);
}
ASSERT(m_displayTree->firstChild() == m_cueBackgroundBox);
if (!m_displayTreeShouldChange) {
// Apply updated user style overrides for text tracks when display tree doesn't change.
// This ensures that the track settings are refreshed when the video is
// replayed or when the user slides back to an already rendered track.
applyUserOverrideCSSProperties();
return m_displayTree;
}
createVTTNodeTree();
m_cueBackgroundBox->removeChildren();
m_vttNodeTree->cloneChildNodes(m_cueBackgroundBox.get());
VTTDisplayParameters displayParameters = calculateDisplayParameters();
m_displayTree->applyCSSProperties(displayParameters);
// Apply user override settings for text tracks
applyUserOverrideCSSProperties();
m_displayTreeShouldChange = false;
return m_displayTree;
}
VTTCueBox* VTTCue::getDisplayTree()
{
ASSERT(track() && track()->isRendered() && isActive());
if (!m_displayTree) {
m_displayTree = VTTCueBox::create(document());
m_displayTree->appendChild(m_cueBackgroundBox);
}
ASSERT(m_displayTree->firstChild() == m_cueBackgroundBox);
if (!m_displayTreeShouldChange) {
// Apply updated user style overrides for text tracks when display tree doesn't change.
// This ensures that the track settings are refreshed when the video is
// replayed or when the user slides back to an already rendered track.
applyUserOverrideCSSProperties();
return m_displayTree;
}
createVTTNodeTree();
m_cueBackgroundBox->removeChildren();
m_vttNodeTree->cloneChildNodes(m_cueBackgroundBox.get());
// TODO(philipj): The region identifier may be non-empty without there being
// a corresponding region, in which case this VTTCueBox will be added
// directly to the text track container in updateDisplay().
if (regionId().isEmpty()) {
VTTDisplayParameters displayParameters = calculateDisplayParameters();
m_displayTree->applyCSSProperties(displayParameters);
} else {
m_displayTree->setInlineStyleProperty(CSSPropertyPosition, CSSValueRelative);
}
// Apply user override settings for text tracks
applyUserOverrideCSSProperties();
m_displayTreeShouldChange = false;
return m_displayTree;
}
