#ifndef WheelEvent_h
#define WheelEvent_h
#include "FloatPoint.h"
#include "MouseEvent.h"
#include "PlatformWheelEvent.h"
namespace WebCore {
class PlatformWheelEvent;
struct WheelEventInit : public MouseEventInit {
WheelEventInit();
double deltaX;
double deltaY;
double deltaZ;
unsigned deltaMode;
int wheelDeltaX; int wheelDeltaY; };
class WheelEvent final : public MouseEvent {
public:
enum { TickMultiplier = 120 };
enum DeltaMode {
DOM_DELTA_PIXEL = 0,
DOM_DELTA_LINE,
DOM_DELTA_PAGE
};
static Ref<WheelEvent> create()
{
return adoptRef(*new WheelEvent);
}
static Ref<WheelEvent> create(const AtomicString& type, const WheelEventInit& initializer)
{
return adoptRef(*new WheelEvent(type, initializer));
}
static Ref<WheelEvent> create(const PlatformWheelEvent& event, PassRefPtr<AbstractView> view)
{
return adoptRef(*new WheelEvent(event, view));
}
void initWheelEvent(int rawDeltaX, int rawDeltaY, PassRefPtr<AbstractView>,
int screenX, int screenY, int pageX, int pageY,
bool ctrlKey, bool altKey, bool shiftKey, bool metaKey);
void initWebKitWheelEvent(int rawDeltaX, int rawDeltaY, PassRefPtr<AbstractView>,
int screenX, int screenY, int pageX, int pageY,
bool ctrlKey, bool altKey, bool shiftKey, bool metaKey);
const PlatformWheelEvent* wheelEvent() const { return m_initializedWithPlatformWheelEvent ? &m_wheelEvent : nullptr; }
double deltaX() const { return m_deltaX; } double deltaY() const { return m_deltaY; } double deltaZ() const { return m_deltaZ; }
int wheelDelta() const { return wheelDeltaY() ? wheelDeltaY() : wheelDeltaX(); } int wheelDeltaX() const { return m_wheelDelta.x(); } int wheelDeltaY() const { return m_wheelDelta.y(); } unsigned deltaMode() const { return m_deltaMode; }
bool webkitDirectionInvertedFromDevice() const { return m_wheelEvent.directionInvertedFromDevice(); }
bool isHorizontal() const { return m_wheelDelta.x(); }
virtual EventInterface eventInterface() const override;
virtual bool isMouseEvent() const override;
#if PLATFORM(MAC)
PlatformWheelEventPhase phase() const { return m_wheelEvent.phase(); }
PlatformWheelEventPhase momentumPhase() const { return m_wheelEvent.momentumPhase(); }
#endif
private:
WheelEvent();
WheelEvent(const AtomicString&, const WheelEventInit&);
WheelEvent(const PlatformWheelEvent&, PassRefPtr<AbstractView>);
virtual bool isWheelEvent() const override;
IntPoint m_wheelDelta;
double m_deltaX;
double m_deltaY;
double m_deltaZ;
unsigned m_deltaMode;
PlatformWheelEvent m_wheelEvent;
bool m_initializedWithPlatformWheelEvent;
};
}
SPECIALIZE_TYPE_TRAITS_EVENT(WheelEvent)
#endif // WheelEvent_h