/* | |
* Copyright (C) 2008, 2009 Apple Inc. All Rights Reserved. | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions | |
* are met: | |
* 1. Redistributions of source code must retain the above copyright | |
* notice, this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright | |
* notice, this list of conditions and the following disclaimer in the | |
* documentation and/or other materials provided with the distribution. | |
* | |
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY | |
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR | |
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
*/ | |
#ifndef RenderScrollbar_h | |
#define RenderScrollbar_h | |
#include "RenderStyleConstants.h" | |
#include "Scrollbar.h" | |
#include <wtf/HashMap.h> | |
namespace WebCore { | |
class RenderBox; | |
class RenderScrollbarPart; | |
class RenderStyle; | |
class RenderScrollbar : public Scrollbar { | |
protected: | |
RenderScrollbar(ScrollbarClient*, ScrollbarOrientation, RenderBox*); | |
public: | |
friend class Scrollbar; | |
static PassRefPtr<Scrollbar> createCustomScrollbar(ScrollbarClient*, ScrollbarOrientation, RenderBox*); | |
virtual ~RenderScrollbar(); | |
static ScrollbarPart partForStyleResolve(); | |
static RenderScrollbar* scrollbarForStyleResolve(); | |
RenderBox* owningRenderer() const { return m_owner; } | |
void paintPart(GraphicsContext*, ScrollbarPart, const IntRect&); | |
IntRect buttonRect(ScrollbarPart); | |
IntRect trackRect(int startLength, int endLength); | |
IntRect trackPieceRectWithMargins(ScrollbarPart, const IntRect&); | |
int minimumThumbLength(); | |
private: | |
virtual void setParent(ScrollView*); | |
virtual void setEnabled(bool); | |
virtual void paint(GraphicsContext*, const IntRect& damageRect); | |
virtual void setHoveredPart(ScrollbarPart); | |
virtual void setPressedPart(ScrollbarPart); | |
virtual void styleChanged(); | |
virtual bool isCustomScrollbar() const { return true; } | |
void updateScrollbarParts(bool destroy = false); | |
PassRefPtr<RenderStyle> getScrollbarPseudoStyle(ScrollbarPart, PseudoId); | |
void updateScrollbarPart(ScrollbarPart, bool destroy = false); | |
RenderBox* m_owner; | |
HashMap<unsigned, RenderScrollbarPart*> m_parts; | |
}; | |
inline RenderScrollbar* toRenderScrollbar(Scrollbar* scrollbar) | |
{ | |
ASSERT(!scrollbar || scrollbar->isCustomScrollbar()); | |
return static_cast<RenderScrollbar*>(scrollbar); | |
} | |
// This will catch anyone doing an unnecessary cast. | |
void toRenderScrollbar(const RenderScrollbar*); | |
} // namespace WebCore | |
#endif // RenderScrollbar_h |