#include "config.h"
#include "WheelEvent.h"
#include "EventDispatcher.h"
#include "EventNames.h"
#include "PlatformWheelEvent.h"
#include <wtf/MathExtras.h>
namespace WebCore {
WheelEvent::WheelEvent()
: m_wheelDeltaX(0)
, m_wheelDeltaY(0)
, m_rawDeltaX(0)
, m_rawDeltaY(0)
, m_granularity(Pixel)
{
}
WheelEvent::WheelEvent(float wheelTicksX, float wheelTicksY, float rawDeltaX, float rawDeltaY,
Granularity granularity, PassRefPtr<AbstractView> view,
int screenX, int screenY, int pageX, int pageY,
bool ctrlKey, bool altKey, bool shiftKey, bool metaKey)
: MouseRelatedEvent(eventNames().mousewheelEvent,
true, true, view, 0, screenX, screenY, pageX, pageY,
ctrlKey, altKey, shiftKey, metaKey)
, m_wheelDeltaX(lroundf(wheelTicksX * 120))
, m_wheelDeltaY(lroundf(wheelTicksY * 120)) , m_rawDeltaX(rawDeltaX)
, m_rawDeltaY(rawDeltaY)
, m_granularity(granularity)
{
}
void WheelEvent::initWheelEvent(int rawDeltaX, int rawDeltaY, PassRefPtr<AbstractView> view,
int screenX, int screenY, int pageX, int pageY,
bool ctrlKey, bool altKey, bool shiftKey, bool metaKey)
{
if (dispatched())
return;
initUIEvent(eventNames().mousewheelEvent, true, true, view, 0);
m_screenX = screenX;
m_screenY = screenY;
m_ctrlKey = ctrlKey;
m_altKey = altKey;
m_shiftKey = shiftKey;
m_metaKey = metaKey;
m_wheelDeltaX = rawDeltaX * 120;
m_wheelDeltaY = rawDeltaY * 120;
m_rawDeltaX = rawDeltaX;
m_rawDeltaY = rawDeltaY;
m_granularity = Pixel;
initCoordinates(pageX, pageY);
}
void WheelEvent::initWebKitWheelEvent(int rawDeltaX, int rawDeltaY, PassRefPtr<AbstractView> view,
int screenX, int screenY, int pageX, int pageY,
bool ctrlKey, bool altKey, bool shiftKey, bool metaKey)
{
initWheelEvent(rawDeltaX, rawDeltaY, view, screenX, screenY, pageX, pageY,
ctrlKey, altKey, shiftKey, metaKey);
}
bool WheelEvent::isWheelEvent() const
{
return true;
}
inline static WheelEvent::Granularity granularity(const PlatformWheelEvent& event)
{
return event.granularity() == ScrollByPageWheelEvent ? WheelEvent::Page : WheelEvent::Pixel;
}
WheelEventDispatchMediator::WheelEventDispatchMediator(const PlatformWheelEvent& event, PassRefPtr<AbstractView> view)
{
if (!(event.deltaX() || event.deltaY()))
return;
setEvent(WheelEvent::create(event.wheelTicksX(), event.wheelTicksY(), event.deltaX(), event.deltaY(), granularity(event),
view, event.globalX(), event.globalY(), event.x(), event.y(), event.ctrlKey(), event.altKey(), event.shiftKey(), event.metaKey()));
}
WheelEvent* WheelEventDispatchMediator::event() const
{
return static_cast<WheelEvent*>(EventDispatchMediator::event());
}
bool WheelEventDispatchMediator::dispatchEvent(EventDispatcher* dispatcher) const
{
if (!event())
return true;
return EventDispatchMediator::dispatchEvent(dispatcher) && !event()->defaultHandled();
}
}