MutationObserverRegistration.h [plain text]
#ifndef MutationObserverRegistration_h
#define MutationObserverRegistration_h
#if ENABLE(MUTATION_OBSERVERS)
#include "WebKitMutationObserver.h"
#include <wtf/HashSet.h>
#include <wtf/text/AtomicString.h>
#include <wtf/text/AtomicStringHash.h>
namespace WebCore {
class QualifiedName;
class MutationObserverRegistration {
public:
static PassOwnPtr<MutationObserverRegistration> create(PassRefPtr<WebKitMutationObserver>, Node*);
~MutationObserverRegistration();
void resetObservation(MutationObserverOptions, const HashSet<AtomicString>& attributeFilter);
void observedSubtreeNodeWillDetach(PassRefPtr<Node>);
void clearTransientRegistrations();
bool hasTransientRegistrations() { return m_transientRegistrationNodes && !m_transientRegistrationNodes->isEmpty(); }
void unregister();
bool shouldReceiveMutationFrom(Node*, WebKitMutationObserver::MutationType, const QualifiedName* attributeName);
bool inline isSubtree() const { return m_options & WebKitMutationObserver::Subtree; }
WebKitMutationObserver* observer() { return m_observer.get(); }
MutationRecordDeliveryOptions deliveryOptions() const { return m_options & (WebKitMutationObserver::AttributeOldValue | WebKitMutationObserver::CharacterDataOldValue); }
MutationObserverOptions mutationTypes() const { return m_options & WebKitMutationObserver::AllMutationTypes; }
private:
MutationObserverRegistration(PassRefPtr<WebKitMutationObserver>, Node*);
const HashSet<AtomicString>& caseInsensitiveAttributeFilter();
RefPtr<WebKitMutationObserver> m_observer;
Node* m_registrationNode;
RefPtr<Node> m_registrationNodeKeepAlive;
typedef HashSet<RefPtr<Node> > NodeHashSet;
OwnPtr<NodeHashSet> m_transientRegistrationNodes;
MutationObserverOptions m_options;
HashSet<AtomicString> m_attributeFilter;
};
}
#endif // ENABLE(MUTATION_OBSERVERS)
#endif // MutationObserverRegistration_h