void VTTCue::removeDisplayTree()
{
if (m_notifyRegion && track()->regions()) {
// The region needs to be informed about the cue removal.
VTTRegion* region = track()->regions()->getRegionById(m_regionId);
if (region)
region->willRemoveVTTCueBox(m_displayTree.get());
}
displayTreeInternal()->remove(ASSERT_NO_EXCEPTION);
}
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);
}
}
void VTTParser::createNewRegion(const String& headerValue)
{
if (headerValue.isEmpty())
return;
// Steps 12.5.1 - 12.5.9 - Construct and initialize a WebVTT Region object.
VTTRegion* region = VTTRegion::create();
region->setRegionSettings(headerValue);
// Step 12.5.10 If the text track list of regions regions contains a region
// with the same region identifier value as region, remove that region.
for (size_t i = 0; i < m_regionList.size(); ++i) {
if (m_regionList[i]->id() == region->id()) {
m_regionList.remove(i);
break;
}
}
// Step 12.5.11
m_regionList.append(region);
}
