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96 lines
4.0 KiB
C++
96 lines
4.0 KiB
C++
/*
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* Copyright (C) 2001 Peter Kelly (pmk@post.com)
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* Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
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* Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
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* Copyright (C) 2003, 2004, 2005, 2006 Apple Computer, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef MouseRelatedEvent_h
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#define MouseRelatedEvent_h
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#include "core/events/UIEventWithKeyState.h"
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#include "platform/geometry/LayoutPoint.h"
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namespace blink {
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// Internal only: Helper class for what's common between mouse and wheel events.
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class MouseRelatedEvent : public UIEventWithKeyState {
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public:
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// Note that these values are adjusted to counter the effects of zoom, so that values
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// exposed via DOM APIs are invariant under zooming.
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int screenX() const { return m_screenLocation.x(); }
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int screenY() const { return m_screenLocation.y(); }
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const IntPoint& screenLocation() const { return m_screenLocation; }
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int clientX() const { return m_clientLocation.x(); }
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int clientY() const { return m_clientLocation.y(); }
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int movementX() const { return m_movementDelta.x(); }
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int movementY() const { return m_movementDelta.y(); }
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const LayoutPoint& clientLocation() const { return m_clientLocation; }
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virtual int layerX() OVERRIDE FINAL;
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virtual int layerY() OVERRIDE FINAL;
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int offsetX();
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int offsetY();
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// FIXME: rename isSimulated to fromKeyboard() and replace m_isSimulated with a new value
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// in PlatformMouseEvent::SyntheticEventType. isSimulated() is only true for synthetic
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// mouse events that derive from keyboard input, which do not have a position.
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bool isSimulated() const { return m_isSimulated; }
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virtual int pageX() const OVERRIDE FINAL;
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virtual int pageY() const OVERRIDE FINAL;
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int x() const;
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int y() const;
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// Page point in "absolute" coordinates (i.e. post-zoomed, page-relative coords,
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// usable with RenderObject::absoluteToLocal).
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const LayoutPoint& absoluteLocation() const { return m_absoluteLocation; }
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void setAbsoluteLocation(const LayoutPoint& p) { m_absoluteLocation = p; }
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virtual void trace(Visitor*) OVERRIDE;
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protected:
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MouseRelatedEvent();
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MouseRelatedEvent(const AtomicString& type, bool canBubble, bool cancelable,
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PassRefPtrWillBeRawPtr<AbstractView>, int detail, const IntPoint& screenLocation,
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const IntPoint& windowLocation, const IntPoint& movementDelta, bool ctrlKey, bool altKey,
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bool shiftKey, bool metaKey, bool isSimulated = false);
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void initCoordinates();
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void initCoordinates(const LayoutPoint& clientLocation);
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virtual void receivedTarget() OVERRIDE FINAL;
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void computePageLocation();
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void computeRelativePosition();
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// Expose these so MouseEvent::initMouseEvent can set them.
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IntPoint m_screenLocation;
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LayoutPoint m_clientLocation;
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LayoutPoint m_movementDelta;
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private:
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LayoutPoint m_pageLocation;
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LayoutPoint m_layerLocation;
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LayoutPoint m_offsetLocation;
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LayoutPoint m_absoluteLocation;
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bool m_isSimulated;
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bool m_hasCachedRelativePosition;
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};
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} // namespace blink
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#endif // MouseRelatedEvent_h
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