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author | Steve Block <steveblock@google.com> | 2011-05-06 11:45:16 +0100 |
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committer | Steve Block <steveblock@google.com> | 2011-05-12 13:44:10 +0100 |
commit | cad810f21b803229eb11403f9209855525a25d57 (patch) | |
tree | 29a6fd0279be608e0fe9ffe9841f722f0f4e4269 /Source/WebCore/rendering/RenderScrollbar.h | |
parent | 121b0cf4517156d0ac5111caf9830c51b69bae8f (diff) | |
download | external_webkit-cad810f21b803229eb11403f9209855525a25d57.zip external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.gz external_webkit-cad810f21b803229eb11403f9209855525a25d57.tar.bz2 |
Merge WebKit at r75315: Initial merge by git.
Change-Id: I570314b346ce101c935ed22a626b48c2af266b84
Diffstat (limited to 'Source/WebCore/rendering/RenderScrollbar.h')
-rw-r--r-- | Source/WebCore/rendering/RenderScrollbar.h | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/Source/WebCore/rendering/RenderScrollbar.h b/Source/WebCore/rendering/RenderScrollbar.h new file mode 100644 index 0000000..de70624 --- /dev/null +++ b/Source/WebCore/rendering/RenderScrollbar.h @@ -0,0 +1,97 @@ +/* + * 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 Frame; +class RenderBox; +class RenderScrollbarPart; +class RenderStyle; + +class RenderScrollbar : public Scrollbar { +protected: + RenderScrollbar(ScrollbarClient*, ScrollbarOrientation, RenderBox*, Frame*); + +public: + friend class Scrollbar; + static PassRefPtr<Scrollbar> createCustomScrollbar(ScrollbarClient*, ScrollbarOrientation, RenderBox*, Frame* owningFrame = 0); + virtual ~RenderScrollbar(); + + static ScrollbarPart partForStyleResolve(); + static RenderScrollbar* scrollbarForStyleResolve(); + + RenderBox* owningRenderer() const; + void clearOwningRenderer() { m_owner = 0; } + + 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; + Frame* m_owningFrame; + 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 |