#ifndef WheelEvent_h
#define WheelEvent_h
#include "EventDispatchMediator.h"
#include "FloatPoint.h"
#include "MouseEvent.h"
namespace WebCore {
class PlatformWheelEvent;
struct WheelEventInit : public MouseEventInit {
WheelEventInit();
int wheelDeltaX;
int wheelDeltaY;
unsigned deltaMode;
};
class WheelEvent : public MouseEvent {
public:
enum { TickMultiplier = 120 };
enum DeltaMode {
DOM_DELTA_PIXEL = 0,
DOM_DELTA_LINE,
DOM_DELTA_PAGE
};
static PassRefPtr<WheelEvent> create()
{
return adoptRef(new WheelEvent);
}
static PassRefPtr<WheelEvent> create(const AtomicString& type, const WheelEventInit& initializer)
{
return adoptRef(new WheelEvent(type, initializer));
}
static PassRefPtr<WheelEvent> create(const FloatPoint& wheelTicks,
const FloatPoint& rawDelta, unsigned deltaMode, PassRefPtr<AbstractView> view,
const IntPoint& screenLocation, const IntPoint& pageLocation,
bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool directionInvertedFromDevice)
{
return adoptRef(new WheelEvent(wheelTicks, rawDelta, deltaMode, view,
screenLocation, pageLocation, ctrlKey, altKey, shiftKey, metaKey, directionInvertedFromDevice));
}
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);
int wheelDelta() const { return m_wheelDelta.y() ? m_wheelDelta.y() : m_wheelDelta.x(); }
int wheelDeltaX() const { return m_wheelDelta.x(); }
int wheelDeltaY() const { return m_wheelDelta.y(); }
int rawDeltaX() const { return m_rawDelta.x(); }
int rawDeltaY() const { return m_rawDelta.y(); }
unsigned deltaMode() const { return m_deltaMode; }
bool webkitDirectionInvertedFromDevice() const { return m_directionInvertedFromDevice; }
bool isHorizontal() const { return m_wheelDelta.x(); }
virtual const AtomicString& interfaceName() const;
virtual bool isMouseEvent() const;
private:
WheelEvent();
WheelEvent(const AtomicString&, const WheelEventInit&);
WheelEvent(const FloatPoint& wheelTicks, const FloatPoint& rawDelta,
unsigned, PassRefPtr<AbstractView>, const IntPoint& screenLocation, const IntPoint& pageLocation,
bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool directionInvertedFromDevice);
IntPoint m_wheelDelta;
IntPoint m_rawDelta;
unsigned m_deltaMode;
bool m_directionInvertedFromDevice;
};
class WheelEventDispatchMediator : public EventDispatchMediator {
public:
static PassRefPtr<WheelEventDispatchMediator> create(const PlatformWheelEvent&, PassRefPtr<AbstractView>);
private:
WheelEventDispatchMediator(const PlatformWheelEvent&, PassRefPtr<AbstractView>);
WheelEvent* event() const;
virtual bool dispatchEvent(EventDispatcher*) const OVERRIDE;
};
}
#endif // WheelEvent_h