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/*
* Copyright (c) 2008, 2009, Google 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:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE COPYRIGHT
* OWNER 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 ScrollbarThemeChromium_h
#define ScrollbarThemeChromium_h
#include "ScrollbarThemeComposite.h"
namespace WebCore {
class PlatformMouseEvent;
// This class contains the Chromium scrollbar implementations for Windows
// and Linux. All of the symbols here in must be defined somewhere in the
// code and we manage the platform specific parts by linking in different,
// platform specific, files. Methods that we shared across platforms are
// implemented in ScrollbarThemeChromium.cpp
class ScrollbarThemeChromium : public ScrollbarThemeComposite {
public:
ScrollbarThemeChromium();
virtual ~ScrollbarThemeChromium();
virtual int scrollbarThickness(ScrollbarControlSize = RegularScrollbar);
virtual void themeChanged();
virtual bool invalidateOnMouseEnterExit();
protected:
virtual bool hasButtons(Scrollbar*) { return true; }
virtual bool hasThumb(Scrollbar*);
virtual IntRect backButtonRect(Scrollbar*, ScrollbarPart, bool painting = false);
virtual IntRect forwardButtonRect(Scrollbar*, ScrollbarPart, bool painting = false);
virtual IntRect trackRect(Scrollbar*, bool painting = false);
virtual void paintScrollCorner(ScrollView*, GraphicsContext*, const IntRect&);
virtual bool shouldCenterOnThumb(Scrollbar*, const PlatformMouseEvent&);
virtual void paintTrackBackground(GraphicsContext*, Scrollbar*, const IntRect&);
virtual void paintTrackPiece(GraphicsContext*, Scrollbar*, const IntRect&, ScrollbarPart);
virtual void paintButton(GraphicsContext*, Scrollbar*, const IntRect&, ScrollbarPart);
virtual void paintThumb(GraphicsContext*, Scrollbar*, const IntRect&);
virtual void paintTickmarks(GraphicsContext*, Scrollbar*, const IntRect&);
private:
IntSize buttonSize(Scrollbar*);
int getThemeState(Scrollbar*, ScrollbarPart) const;
int getThemeArrowState(Scrollbar*, ScrollbarPart) const;
int getClassicThemeState(Scrollbar*, ScrollbarPart) const;
};
} // namespace WebCore
#endif
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