PassRefPtr<DocumentFragment> TextTrackCue::getCueAsHTML()
{
createWebVTTNodeTree();
RefPtr<DocumentFragment> clonedFragment = DocumentFragment::create(ownerDocument());
copyWebVTTNodeToDOMTree(m_webVTTNodeTree.get(), 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();
}
void TextTrackCue::copyWebVTTNodeToDOMTree(ContainerNode* webVTTNode, ContainerNode* parent)
{
for (Node* node = webVTTNode->firstChild(); node; node = node->nextSibling()) {
RefPtr<Node> clonedNode;
if (node->isWebVTTElement())
clonedNode = toWebVTTElement(node)->createEquivalentHTMLElement(ownerDocument());
else
clonedNode = node->cloneNode(false);
parent->appendChild(clonedNode, ASSERT_NO_EXCEPTION);
if (node->isContainerNode())
copyWebVTTNodeToDOMTree(toContainerNode(node), toContainerNode(clonedNode.get()));
}
}
void VTTCue::copyWebVTTNodeToDOMTree(ContainerNode* webVTTNode, ContainerNode* parent)
{
for (Node* node = webVTTNode->firstChild(); node; node = node->nextSibling()) {
RefPtr<Node> clonedNode;
if (is<WebVTTElement>(*node))
clonedNode = downcast<WebVTTElement>(*node).createEquivalentHTMLElement(ownerDocument());
else
clonedNode = node->cloneNode(false);
parent->appendChild(*clonedNode, ASSERT_NO_EXCEPTION);
if (is<ContainerNode>(*node))
copyWebVTTNodeToDOMTree(downcast<ContainerNode>(node), downcast<ContainerNode>(clonedNode.get()));
}
}
void TextTrackCue::copyWebVTTNodeToDOMTree(ContainerNode* webVTTNode, ContainerNode* parent)
{
for (Node* node = webVTTNode->firstChild(); node; node = node->nextSibling()) {
RefPtr<Node> clonedNode;
// Specs require voice and class WebVTT elements to be spans for DOM trees.
if (node->hasTagName(voiceElementTagName()) || node->hasTagName(classElementTagName())) {
clonedNode = HTMLSpanElement::create(spanTag, static_cast<Document*>(m_scriptExecutionContext));
toElement(clonedNode.get())->setAttribute(classAttr, toElement(node)->getAttribute(classAttr));
toElement(clonedNode.get())->setAttribute(titleAttr, toElement(node)->getAttribute(voiceAttributeName()));
} else
clonedNode = node->cloneNode(false);
parent->appendChild(clonedNode, ASSERT_NO_EXCEPTION);
if (node->isContainerNode())
copyWebVTTNodeToDOMTree(toContainerNode(node), toContainerNode(clonedNode.get()));
}
}
