void VTTCue::updateDisplay(const IntSize& videoSize, HTMLDivElement& container)
{
RefPtr<VTTCueBox> displayBox = getDisplayTree(videoSize);
VTTRegion* region = 0;
if (track()->regions())
region = track()->regions()->getRegionById(regionId());
if (!region) {
// If cue has an empty text track cue region identifier or there is no
// WebVTT region whose region identifier is identical to cue's text
// track cue region identifier, run the following substeps:
if (displayBox->hasChildNodes() && !container.contains(displayBox.get())) {
// Note: the display tree of a cue is removed when the active flag of the cue is unset.
container.appendChild(displayBox);
}
} else {
// Let region be the WebVTT region whose region identifier
// matches the text track cue region identifier of cue.
RefPtr<HTMLDivElement> regionNode = region->getDisplayTree(document());
// Append the region to the viewport, if it was not already.
if (!container.contains(regionNode.get()))
container.appendChild(regionNode);
region->appendVTTCueBox(displayBox);
}
}
void VTTCue::updateDisplay(HTMLDivElement& container)
{
ASSERT(track() && track()->isRendered() && isActive());
UseCounter::count(document(), UseCounter::VTTCueRender);
if (m_writingDirection != Horizontal)
UseCounter::count(document(), UseCounter::VTTCueRenderVertical);
if (!m_snapToLines)
UseCounter::count(document(), UseCounter::VTTCueRenderSnapToLinesFalse);
if (!lineIsAuto())
UseCounter::count(document(), UseCounter::VTTCueRenderLineNotAuto);
if (textPositionIsAuto())
UseCounter::count(document(), UseCounter::VTTCueRenderPositionNot50);
if (m_cueSize != 100)
UseCounter::count(document(), UseCounter::VTTCueRenderSizeNot100);
if (m_cueAlignment != Middle)
UseCounter::count(document(), UseCounter::VTTCueRenderAlignNotMiddle);
VTTCueBox* displayBox = getDisplayTree();
VTTRegion* region = 0;
if (track()->regions())
region = track()->regions()->getRegionById(regionId());
if (!region) {
// If cue has an empty region identifier or there is no WebVTT region
// whose region identifier is identical to cue's region identifier, run
// the following substeps:
if (displayBox->hasChildren() && !container.contains(displayBox)) {
// Note: the display tree of a cue is removed when the active flag of the cue is unset.
container.appendChild(displayBox);
}
} else {
// Let region be the WebVTT region whose region identifier matches the
// region identifier of cue.
HTMLDivElement* regionNode = region->getDisplayTree(document());
// Append the region to the viewport, if it was not already.
if (!container.contains(regionNode))
container.appendChild(regionNode);
region->appendVTTCueBox(displayBox);
}
}
void VTTCue::updateDisplay(const IntSize& videoSize, HTMLDivElement& container)
{
UseCounter::count(document(), UseCounter::VTTCueRender);
if (m_writingDirection != Horizontal)
UseCounter::count(document(), UseCounter::VTTCueRenderVertical);
if (!m_snapToLines)
UseCounter::count(document(), UseCounter::VTTCueRenderSnapToLinesFalse);
if (m_linePosition != undefinedPosition)
UseCounter::count(document(), UseCounter::VTTCueRenderLineNotAuto);
if (m_textPosition != 50)
UseCounter::count(document(), UseCounter::VTTCueRenderPositionNot50);
if (m_cueSize != 100)
UseCounter::count(document(), UseCounter::VTTCueRenderSizeNot100);
if (m_cueAlignment != Middle)
UseCounter::count(document(), UseCounter::VTTCueRenderAlignNotMiddle);
RefPtrWillBeRawPtr<VTTCueBox> displayBox = getDisplayTree(videoSize);
VTTRegion* region = 0;
if (track()->regions())
region = track()->regions()->getRegionById(regionId());
if (!region) {
// If cue has an empty text track cue region identifier or there is no
// WebVTT region whose region identifier is identical to cue's text
// track cue region identifier, run the following substeps:
if (displayBox->hasChildren() && !container.contains(displayBox.get())) {
// Note: the display tree of a cue is removed when the active flag of the cue is unset.
container.appendChild(displayBox);
}
} else {
// Let region be the WebVTT region whose region identifier
// matches the text track cue region identifier of cue.
RefPtrWillBeRawPtr<HTMLDivElement> regionNode = region->getDisplayTree(document());
// Append the region to the viewport, if it was not already.
if (!container.contains(regionNode.get()))
container.appendChild(regionNode);
region->appendVTTCueBox(displayBox);
}
}
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;
}
