PassRefPtr<DocumentFragment> TextTrackCue::getCueAsHTML()
{
createWebVTTNodeTree();
RefPtr<DocumentFragment> clonedFragment = DocumentFragment::create(ownerDocument());
copyWebVTTNodeToDOMTree(m_webVTTNodeTree.get(), clonedFragment.get());
return clonedFragment.release();
}
PassRefPtr<DocumentFragment> TextTrackCue::createCueRenderingTree()
{
RefPtr<DocumentFragment> clonedFragment;
createWebVTTNodeTree();
clonedFragment = DocumentFragment::create(ownerDocument());
m_webVTTNodeTree->cloneChildNodes(clonedFragment.get());
return clonedFragment.release();
}
PassRefPtr<DocumentFragment> TextTrackCue::getCueAsHTML()
{
createWebVTTNodeTree();
Document* document = static_cast<Document*>(m_scriptExecutionContext);
RefPtr<DocumentFragment> clonedFragment = DocumentFragment::create(document);
copyWebVTTNodeToDOMTree(m_webVTTNodeTree.get(), clonedFragment.get());
return clonedFragment.release();
}
PassRefPtr<DocumentFragment> TextTrackCue::createCueRenderingTree()
{
RefPtr<DocumentFragment> clonedFragment;
createWebVTTNodeTree();
Document* document = static_cast<Document*>(m_scriptExecutionContext);
clonedFragment = DocumentFragment::create(document);
m_webVTTNodeTree->cloneChildNodes(clonedFragment.get());
return clonedFragment.release();
}
PassRefPtr<DocumentFragment> VTTCue::createCueRenderingTree()
{
RefPtr<DocumentFragment> clonedFragment;
createWebVTTNodeTree();
if (!m_webVTTNodeTree)
return nullptr;
clonedFragment = DocumentFragment::create(ownerDocument());
m_webVTTNodeTree->cloneChildNodes(*clonedFragment);
return clonedFragment.release();
}
void VTTCue::determineTextDirection()
{
DEPRECATED_DEFINE_STATIC_LOCAL(const String, rtTag, (ASCIILiteral("rt")));
createWebVTTNodeTree();
if (!m_webVTTNodeTree)
return;
// Apply the Unicode Bidirectional Algorithm's Paragraph Level steps to the
// concatenation of the values of each WebVTT Text Object in nodes, in a
// pre-order, depth-first traversal, excluding WebVTT Ruby Text Objects and
// their descendants.
StringBuilder paragraphBuilder;
for (Node* node = m_webVTTNodeTree->firstChild(); node; node = NodeTraversal::next(node, m_webVTTNodeTree.get())) {
// FIXME: The code does not match the comment above. This does not actually exclude Ruby Text Object descendant.
if (!node->isTextNode() || node->localName() == rtTag)
continue;
paragraphBuilder.append(node->nodeValue());
}
String paragraph = paragraphBuilder.toString();
if (!paragraph.length())
return;
for (size_t i = 0; i < paragraph.length(); ++i) {
UChar current = paragraph[i];
if (!current || isCueParagraphSeparator(current))
return;
if (UChar current = paragraph[i]) {
UCharDirection charDirection = u_charDirection(current);
if (charDirection == U_LEFT_TO_RIGHT) {
m_displayDirection = CSSValueLtr;
return;
}
if (charDirection == U_RIGHT_TO_LEFT || charDirection == U_RIGHT_TO_LEFT_ARABIC) {
m_displayDirection = CSSValueRtl;
return;
}
}
}
}
void TextTrackCue::determineTextDirection()
{
DEFINE_STATIC_LOCAL(const String, rtTag, (ASCIILiteral("rt")));
createWebVTTNodeTree();
if (!m_webVTTNodeTree)
return;
// Apply the Unicode Bidirectional Algorithm's Paragraph Level steps to the
// concatenation of the values of each WebVTT Text Object in nodes, in a
// pre-order, depth-first traversal, excluding WebVTT Ruby Text Objects and
// their descendants.
StringBuilder paragraphBuilder;
for (Node* node = m_webVTTNodeTree->firstChild(); node; node = NodeTraversal::next(node, m_webVTTNodeTree.get())) {
if (!node->isTextNode() || node->localName() == rtTag)
continue;
paragraphBuilder.append(node->nodeValue());
}
String paragraph = paragraphBuilder.toString();
if (!paragraph.length())
return;
for (size_t i = 0; i < paragraph.length(); ++i) {
UChar current = paragraph[i];
if (!current || isCueParagraphSeparator(current))
return;
if (UChar current = paragraph[i]) {
WTF::Unicode::Direction charDirection = WTF::Unicode::direction(current);
if (charDirection == WTF::Unicode::LeftToRight) {
m_displayDirection = CSSValueLtr;
return;
}
if (charDirection == WTF::Unicode::RightToLeft
|| charDirection == WTF::Unicode::RightToLeftArabic) {
m_displayDirection = CSSValueRtl;
return;
}
}
}
}
