#ifndef TreeScope_h
#define TreeScope_h
#include "DocumentOrderedMap.h"
#include <memory>
#include <wtf/Forward.h>
#include <wtf/text/AtomicString.h>
namespace WebCore {
class ContainerNode;
class DOMSelection;
class Document;
class Element;
class HTMLLabelElement;
class HTMLMapElement;
class LayoutPoint;
class IdTargetObserverRegistry;
class Node;
class ShadowRoot;
class TreeScope {
friend class Document;
friend class TreeScopeAdopter;
public:
TreeScope* parentTreeScope() const { return m_parentTreeScope; }
void setParentTreeScope(TreeScope*);
Element* focusedElement();
Element* getElementById(const AtomicString&) const;
WEBCORE_EXPORT Element* getElementById(const String&) const;
const Vector<Element*>* getAllElementsById(const AtomicString&) const;
bool hasElementWithId(const AtomicStringImpl&) const;
bool containsMultipleElementsWithId(const AtomicString& id) const;
void addElementById(const AtomicStringImpl& elementId, Element&, bool notifyObservers = true);
void removeElementById(const AtomicStringImpl& elementId, Element&, bool notifyObservers = true);
Element* getElementByName(const AtomicString&) const;
bool hasElementWithName(const AtomicStringImpl&) const;
bool containsMultipleElementsWithName(const AtomicString&) const;
void addElementByName(const AtomicStringImpl&, Element&);
void removeElementByName(const AtomicStringImpl&, Element&);
Document& documentScope() const { return *m_documentScope; }
static ptrdiff_t documentScopeMemoryOffset() { return OBJECT_OFFSETOF(TreeScope, m_documentScope); }
Node* ancestorInThisScope(Node*) const;
void addImageMap(HTMLMapElement&);
void removeImageMap(HTMLMapElement&);
HTMLMapElement* getImageMap(const String& url) const;
bool shouldCacheLabelsByForAttribute() const { return !!m_labelsByForAttribute; }
void addLabel(const AtomicStringImpl& forAttributeValue, HTMLLabelElement&);
void removeLabel(const AtomicStringImpl& forAttributeValue, HTMLLabelElement&);
HTMLLabelElement* labelElementForId(const AtomicString& forAttributeValue);
DOMSelection* getSelection() const;
Element* findAnchor(const String& name);
void adoptIfNeeded(Node*);
ContainerNode& rootNode() const { return m_rootNode; }
IdTargetObserverRegistry& idTargetObserverRegistry() const { return *m_idTargetObserverRegistry.get(); }
protected:
TreeScope(ShadowRoot&, Document&);
explicit TreeScope(Document&);
~TreeScope();
void destroyTreeScopeData();
void setDocumentScope(Document* document)
{
ASSERT(document);
m_documentScope = document;
}
private:
ContainerNode& m_rootNode;
Document* m_documentScope;
TreeScope* m_parentTreeScope;
std::unique_ptr<DocumentOrderedMap> m_elementsById;
std::unique_ptr<DocumentOrderedMap> m_elementsByName;
std::unique_ptr<DocumentOrderedMap> m_imageMapsByName;
std::unique_ptr<DocumentOrderedMap> m_labelsByForAttribute;
std::unique_ptr<IdTargetObserverRegistry> m_idTargetObserverRegistry;
mutable RefPtr<DOMSelection> m_selection;
};
inline bool TreeScope::hasElementWithId(const AtomicStringImpl& id) const
{
return m_elementsById && m_elementsById->contains(id);
}
inline bool TreeScope::containsMultipleElementsWithId(const AtomicString& id) const
{
return m_elementsById && id.impl() && m_elementsById->containsMultiple(*id.impl());
}
inline bool TreeScope::hasElementWithName(const AtomicStringImpl& id) const
{
return m_elementsByName && m_elementsByName->contains(id);
}
inline bool TreeScope::containsMultipleElementsWithName(const AtomicString& name) const
{
return m_elementsByName && name.impl() && m_elementsByName->containsMultiple(*name.impl());
}
TreeScope* commonTreeScope(Node*, Node*);
}
#endif // TreeScope_h