#include "config.h"
#include "WheelEvent.h"
#include "DataTransfer.h"
#include "EventNames.h"
#include <wtf/MathExtras.h>
namespace WebCore {
inline static unsigned determineDeltaMode(const PlatformWheelEvent& event)
{
return event.granularity() == ScrollByPageWheelEvent ? WheelEvent::DOM_DELTA_PAGE : WheelEvent::DOM_DELTA_PIXEL;
}
WheelEventInit::WheelEventInit()
: deltaX(0)
, deltaY(0)
, deltaZ(0)
, deltaMode(WheelEvent::DOM_DELTA_PIXEL)
, wheelDeltaX(0)
, wheelDeltaY(0)
{
}
WheelEvent::WheelEvent()
: m_deltaX(0)
, m_deltaY(0)
, m_deltaZ(0)
, m_deltaMode(DOM_DELTA_PIXEL)
, m_initializedWithPlatformWheelEvent(false)
{
}
WheelEvent::WheelEvent(const AtomicString& type, const WheelEventInit& initializer)
: MouseEvent(type, initializer)
, m_wheelDelta(initializer.wheelDeltaX ? initializer.wheelDeltaX : -initializer.deltaX, initializer.wheelDeltaY ? initializer.wheelDeltaY : -initializer.deltaY)
, m_deltaX(initializer.deltaX ? initializer.deltaX : -initializer.wheelDeltaX)
, m_deltaY(initializer.deltaY ? initializer.deltaY : -initializer.wheelDeltaY)
, m_deltaZ(initializer.deltaZ)
, m_deltaMode(initializer.deltaMode)
, m_initializedWithPlatformWheelEvent(false)
{
}
WheelEvent::WheelEvent(const PlatformWheelEvent& event, PassRefPtr<AbstractView> view)
: MouseEvent(eventNames().wheelEvent, true, true, event.timestamp(), view, 0, event.globalPosition().x(), event.globalPosition().y(), event.position().x(), event.position().y()
#if ENABLE(POINTER_LOCK)
, 0, 0
#endif
, event.ctrlKey(), event.altKey(), event.shiftKey(), event.metaKey(), 0, 0, 0, 0, false)
, m_wheelDelta(event.wheelTicksX() * TickMultiplier, event.wheelTicksY() * TickMultiplier)
, m_deltaX(-event.deltaX())
, m_deltaY(-event.deltaY())
, m_deltaZ(0)
, m_deltaMode(determineDeltaMode(event))
, m_wheelEvent(event)
, m_initializedWithPlatformWheelEvent(true)
{
}
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().wheelEvent, true, true, view, 0);
m_screenLocation = IntPoint(screenX, screenY);
m_ctrlKey = ctrlKey;
m_altKey = altKey;
m_shiftKey = shiftKey;
m_metaKey = metaKey;
m_wheelDelta = IntPoint(rawDeltaX * TickMultiplier, rawDeltaY * TickMultiplier);
m_deltaX = -rawDeltaX;
m_deltaY = -rawDeltaY;
m_deltaMode = DOM_DELTA_PIXEL;
initCoordinates(IntPoint(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);
}
EventInterface WheelEvent::eventInterface() const
{
return WheelEventInterfaceType;
}
bool WheelEvent::isMouseEvent() const
{
return false;
}
bool WheelEvent::isWheelEvent() const
{
return true;
}
}