#ifndef ShadowRoot_h
#define ShadowRoot_h
#include "ContainerNode.h"
#include "ContentDistributor.h"
#include "Document.h"
#include "DocumentFragment.h"
#include "Element.h"
#include "ExceptionCode.h"
#include "TreeScope.h"
namespace WebCore {
class ShadowRoot final : public DocumentFragment, public TreeScope {
public:
enum ShadowRootType {
UserAgentShadowRoot = 0,
};
static PassRefPtr<ShadowRoot> create(Document& document, ShadowRootType type)
{
return adoptRef(new ShadowRoot(document, type));
}
virtual ~ShadowRoot();
bool resetStyleInheritance() const { return m_resetStyleInheritance; }
void setResetStyleInheritance(bool);
Element* hostElement() const { return m_hostElement; }
void setHostElement(Element* hostElement) { m_hostElement = hostElement; }
String innerHTML() const;
void setInnerHTML(const String&, ExceptionCode&);
Element* activeElement() const;
ShadowRootType type() const { return static_cast<ShadowRootType>(m_type); }
PassRefPtr<Node> cloneNode(bool, ExceptionCode&);
ContentDistributor& distributor() { return m_distributor; }
void invalidateDistribution() { m_distributor.invalidateDistribution(hostElement()); }
virtual void removeAllEventListeners() override;
private:
ShadowRoot(Document&, ShadowRootType);
virtual bool childTypeAllowed(NodeType) const override;
virtual void childrenChanged(const ChildChange&) override;
virtual PassRefPtr<Node> cloneNode(bool) override { return 0; }
bool isOrphan() const { return !hostElement(); }
unsigned m_resetStyleInheritance : 1;
unsigned m_type : 1;
Element* m_hostElement;
ContentDistributor m_distributor;
};
inline Element* ShadowRoot::activeElement() const
{
return treeScope().focusedElement();
}
inline bool isShadowRoot(const Node& node) { return node.isShadowRoot(); }
NODE_TYPE_CASTS(ShadowRoot)
inline ShadowRoot* Node::shadowRoot() const
{
if (!isElementNode())
return 0;
return toElement(this)->shadowRoot();
}
inline ContainerNode* Node::parentOrShadowHostNode() const
{
ASSERT(isMainThreadOrGCThread());
if (isShadowRoot())
return toShadowRoot(this)->hostElement();
return parentNode();
}
inline bool hasShadowRootParent(const Node& node)
{
return node.parentNode() && node.parentNode()->isShadowRoot();
}
}
#endif