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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, 2013 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.
*
*/
#pragma once
#include <WebCore/LayoutPoint.h>
#include <WebCore/UIEventWithKeyState.h>
namespace WebCore {
class LocalFrameView;
struct MouseRelatedEventInit : public EventModifierInit {
double screenX { 0 };
double screenY { 0 };
double movementX { 0 };
double movementY { 0 };
};
// Internal only: Helper class for what's common between mouse and wheel events.
class MouseRelatedEvent : public UIEventWithKeyState {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(MouseRelatedEvent);
public:
enum class IsSimulated : bool { No, Yes };
// Note that these values are adjusted to counter the effects of zoom, so that values
// exposed via DOM APIs are invariant under zooming.
double screenX() const override;
double screenY() const override;
double clientX() const override;
double clientY() const override;
const DoublePoint& screenLocation() const { return m_screenLocation; }
double movementX() const { return m_movementX; }
double movementY() const { return m_movementY; }
const DoublePoint& windowLocation() const { return m_windowLocation; }
const DoublePoint& clientLocation() const { return m_clientLocation; }
int layerX() override;
int layerY() override;
bool isSimulated() const { return m_isSimulated; }
void setIsSimulated(bool value) { m_isSimulated = value; }
double pageX() const override;
double pageY() const override;
WEBCORE_EXPORT DoublePoint locationInRootViewCoordinates() const;
// Page point in "absolute" coordinates (i.e. post-zoomed, page-relative coords,
// usable with RenderObject::absoluteToLocal).
const DoublePoint& absoluteLocation() const { return m_absoluteLocation; }
static LocalFrameView* frameViewFromWindowProxy(WindowProxy*);
static DoublePoint pagePointToClientPoint(DoublePoint pagePoint, LocalFrameView*);
static DoublePoint pagePointToAbsolutePoint(DoublePoint pagePoint, LocalFrameView*);
WEBCORE_EXPORT virtual double offsetX();
WEBCORE_EXPORT virtual double offsetY();
void computeRelativePosition();
protected:
MouseRelatedEvent(enum EventInterfaceType);
MouseRelatedEvent();
MouseRelatedEvent(enum EventInterfaceType, const AtomString& type, CanBubble, IsCancelable, IsComposed, MonotonicTime, RefPtr<WindowProxy>&&, int detail,
const DoublePoint& screenLocation, const DoublePoint& windowLocation, double movementX, double movementY, OptionSet<Modifier> modifiers,
IsSimulated = IsSimulated::No, IsTrusted = IsTrusted::Yes);
MouseRelatedEvent(enum EventInterfaceType, const AtomString& type, IsCancelable, MonotonicTime, RefPtr<WindowProxy>&&, const DoublePoint& globalLocation, OptionSet<Modifier>);
MouseRelatedEvent(enum EventInterfaceType, const AtomString& type, const MouseRelatedEventInit&, IsTrusted = IsTrusted::No);
void initCoordinates();
void initCoordinates(const DoublePoint& clientLocation);
void receivedTarget() override;
void computePageLocation();
float documentToAbsoluteScaleFactor() const;
bool hasCachedRelativePosition() const { return m_hasCachedRelativePosition; }
DoublePoint offsetLocation() const { return m_offsetLocation; }
DoublePoint pageLocation() const { return m_pageLocation; }
void setScreenLocation(const DoublePoint& point) { m_screenLocation = point; }
private:
void init(bool isSimulated, const DoublePoint&);
double m_movementX { 0 };
double m_movementY { 0 };
DoublePoint m_pageLocation;
LayoutPoint m_layerLocation;
DoublePoint m_offsetLocation;
DoublePoint m_absoluteLocation;
DoublePoint m_windowLocation;
DoublePoint m_screenLocation;
DoublePoint m_clientLocation;
bool m_isSimulated { false };
bool m_hasCachedRelativePosition { false };
};
} // namespace WebCore
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