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/*
* Copyright (C) 2001 Peter Kelly (pmk@post.com)
* Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
* Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
* Copyright (C) 2003, 2004, 2005, 2006, 2008, 2010 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef WheelEvent_h
#define WheelEvent_h
#include "MouseRelatedEvent.h"
namespace WebCore {
// extension: mouse wheel event
class WheelEvent : public MouseRelatedEvent {
public:
enum Granularity { Pixel, Line, Page };
static PassRefPtr<WheelEvent> create()
{
return adoptRef(new WheelEvent);
}
static PassRefPtr<WheelEvent> create(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)
{
return adoptRef(new WheelEvent(wheelTicksX, wheelTicksY, rawDeltaX, rawDeltaY,
granularity, view, screenX, screenY, pageX, pageY,
ctrlKey, altKey, shiftKey, metaKey));
}
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 { if (m_wheelDeltaY == 0) return m_wheelDeltaX; return m_wheelDeltaY; }
int wheelDeltaX() const { return m_wheelDeltaX; }
int wheelDeltaY() const { return m_wheelDeltaY; }
int rawDeltaX() const { return m_rawDeltaX; }
int rawDeltaY() const { return m_rawDeltaY; }
Granularity granularity() const { return m_granularity; }
// Needed for Objective-C legacy support
bool isHorizontal() const { return m_wheelDeltaX; }
private:
WheelEvent();
WheelEvent(float wheelTicksX, float wheelTicksY, float rawDeltaX, float rawDeltaY,
Granularity granularity, PassRefPtr<AbstractView>,
int screenX, int screenY, int pageX, int pageY,
bool ctrlKey, bool altKey, bool shiftKey, bool metaKey);
virtual bool isWheelEvent() const;
int m_wheelDeltaX;
int m_wheelDeltaY;
int m_rawDeltaX;
int m_rawDeltaY;
Granularity m_granularity;
};
class WheelEventDispatchMediator : public EventDispatchMediator {
public:
WheelEventDispatchMediator(const PlatformWheelEvent&, PassRefPtr<AbstractView>);
private:
WheelEvent* event() const;
virtual bool dispatchEvent(EventDispatcher*) const;
};
} // namespace WebCore
#endif // WheelEvent_h