third_party/WebKit/Source/core/html/HTMLTemplateElement.cpp

/*
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#include "core/html/HTMLTemplateElement.h"

#include "core/dom/Document.h"
#include "core/dom/DocumentFragment.h"
#include "core/dom/TemplateContentDocumentFragment.h"

namespace blink {

using namespace HTMLNames;

inline HTMLTemplateElement::HTMLTemplateElement(Document& document)
    : HTMLElement(templateTag, document) {}

DEFINE_NODE_FACTORY(HTMLTemplateElement)

HTMLTemplateElement::~HTMLTemplateElement() = default;

DocumentFragment* HTMLTemplateElement::content() const {
  if (!content_)
    content_ = TemplateContentDocumentFragment::Create(
        GetDocument().EnsureTemplateDocument(),
        const_cast<HTMLTemplateElement*>(this));

  return content_.Get();
}

Node* HTMLTemplateElement::cloneNode(bool deep, ExceptionState&) {
  if (!deep)
    return CloneElementWithoutChildren();

  Node* clone = CloneElementWithChildren();
  if (content_)
    content()->CloneChildNodes(ToHTMLTemplateElement(clone)->content());
  return clone;
}

void HTMLTemplateElement::DidMoveToNewDocument(Document& old_document) {
  HTMLElement::DidMoveToNewDocument(old_document);
  if (!content_)
    return;
  GetDocument().EnsureTemplateDocument().AdoptIfNeeded(*content_);
}

void HTMLTemplateElement::Trace(blink::Visitor* visitor) {
  visitor->Trace(content_);
  HTMLElement::Trace(visitor);
}

void HTMLTemplateElement::TraceWrappers(
    const ScriptWrappableVisitor* visitor) const {
  visitor->TraceWrappers(content_);
  HTMLElement::TraceWrappers(visitor);
}

}  // namespace blink