void HTMLConstructionSite::findFosterSite(HTMLConstructionSiteTask& task)
{
// When a node is to be foster parented, the last template element with no table element is below it in the stack of open elements is the foster parent element (NOT the template's parent!)
HTMLElementStack::ElementRecord* lastTemplateElement = m_openElements.topmost(templateTag.localName());
if (lastTemplateElement && !m_openElements.inTableScope(tableTag)) {
task.parent = lastTemplateElement->element();
return;
}
HTMLElementStack::ElementRecord* lastTableElementRecord = m_openElements.topmost(tableTag.localName());
if (lastTableElementRecord) {
Element* lastTableElement = lastTableElementRecord->element();
ContainerNode* parent;
if (lastTableElementRecord->next()->stackItem()->hasTagName(templateTag))
parent = lastTableElementRecord->next()->element();
else
parent = lastTableElement->parentNode();
// When parsing HTML fragments, we skip step 4.2 ("Let root be a new html element with no attributes") for efficiency,
// and instead use the DocumentFragment as a root node. So we must treat the root node (DocumentFragment) as if it is a html element here.
if (parent && (parent->isElementNode() || (m_isParsingFragment && parent == m_openElements.rootNode()))) {
task.parent = parent;
task.nextChild = lastTableElement;
return;
}
task.parent = lastTableElementRecord->next()->element();
return;
}
// Fragment case
task.parent = m_openElements.rootNode(); // DocumentFragment
}
bool inScopeCommon(HTMLElementStack::ElementRecord* top, const AtomicString& targetTag)
{
for (HTMLElementStack::ElementRecord* pos = top; pos; pos = pos->next()) {
HTMLStackItem* item = pos->stackItem().get();
if (item->matchesHTMLTag(targetTag))
return true;
if (isMarker(item))
return false;
}
ASSERT_NOT_REACHED(); // <html> is always on the stack and is a scope marker.
return false;
}
bool inScopeCommon(HTMLElementStack::ElementRecord* top, const AtomicString& targetTag)
{
for (HTMLElementStack::ElementRecord* pos = top; pos; pos = pos->next()) {
Element* element = pos->element();
if (element->hasLocalName(targetTag))
return true;
if (isMarker(element))
return false;
}
ASSERT_NOT_REACHED(); // <html> is always on the stack and is a scope marker.
return false;
}
void HTMLConstructionSite::findFosterSite(AttachmentSite& site)
{
HTMLElementStack::ElementRecord* lastTableElementRecord = m_openElements.topmost(tableTag.localName());
if (lastTableElementRecord) {
Element* lastTableElement = lastTableElementRecord->element();
if (ContainerNode* parent = lastTableElement->parentNode()) {
site.parent = parent;
site.nextChild = lastTableElement;
return;
}
site.parent = lastTableElementRecord->next()->element();
site.nextChild = 0;
return;
}
// Fragment case
site.parent = m_openElements.rootNode(); // DocumentFragment
site.nextChild = 0;
}
void HTMLConstructionSite::findFosterSite(HTMLConstructionSiteTask& task)
{
HTMLElementStack::ElementRecord* lastTableElementRecord = m_openElements.topmost(tableTag.localName());
if (lastTableElementRecord) {
Element* lastTableElement = lastTableElementRecord->element();
ContainerNode* parent = lastTableElement->parentNode();
// When parsing HTML fragments, we skip step 4.2 ("Let root be a new html element with no attributes") for efficiency,
// and instead use the DocumentFragment as a root node. So we must treat the root node (DocumentFragment) as if it is a html element here.
if (parent && (parent->isElementNode() || (m_isParsingFragment && parent == m_openElements.rootNode()))) {
task.parent = parent;
task.nextChild = lastTableElement;
return;
}
task.parent = lastTableElementRecord->next()->element();
return;
}
// Fragment case
task.parent = m_openElements.rootNode(); // DocumentFragment
}
HTMLTreeBuilderSimulator::State HTMLTreeBuilderSimulator::stateFor(
HTMLTreeBuilder* treeBuilder) {
ASSERT(isMainThread());
State namespaceStack;
for (HTMLElementStack::ElementRecord* record =
treeBuilder->openElements()->topRecord();
record; record = record->next()) {
Namespace currentNamespace = HTML;
if (record->namespaceURI() == SVGNames::svgNamespaceURI)
currentNamespace = SVG;
else if (record->namespaceURI() == MathMLNames::mathmlNamespaceURI)
currentNamespace = MathML;
if (namespaceStack.isEmpty() || namespaceStack.last() != currentNamespace)
namespaceStack.append(currentNamespace);
}
namespaceStack.reverse();
return namespaceStack;
}