blob: c929ab3d3538816351e5780735070c61acda4f56 [file] [log] [blame]
/*
* This file is part of the select element renderer in WebCore.
*
* Copyright (C) 2006, 2007 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.
* 3. Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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 RenderListBox_h
#define RenderListBox_h
#include "RenderBlock.h"
#include "ScrollBar.h"
namespace WebCore {
class HTMLSelectElement;
class RenderListBox : public RenderBlock, private ScrollbarClient {
public:
RenderListBox(HTMLSelectElement*);
~RenderListBox();
virtual const char* renderName() const { return "RenderListBox"; }
virtual bool isListBox() const { return true; }
virtual void setStyle(RenderStyle*);
virtual void updateFromElement();
virtual bool canHaveChildren() const { return false; }
virtual bool hasControlClip() const { return true; }
virtual void paintObject(PaintInfo&, int tx, int ty);
virtual IntRect controlClipRect(int tx, int ty) const;
virtual bool isPointInOverflowControl(HitTestResult&, int x, int y, int tx, int ty);
virtual bool scroll(ScrollDirection, ScrollGranularity, float multiplier = 1.0f);
virtual bool isScrollable() const;
virtual void calcPrefWidths();
virtual short baselinePosition(bool firstLine, bool isRootLineBox) const;
virtual void calcHeight();
virtual void layout();
void selectionChanged();
void setOptionsChanged(bool changed) { m_optionsChanged = changed; }
int listIndexAtOffset(int x, int y);
bool scrollToRevealElementAtListIndex(int index);
virtual bool shouldAutoscroll() const { return true; }
virtual void autoscroll();
virtual void stopAutoscroll();
virtual int verticalScrollbarWidth() const;
virtual int scrollLeft() const;
virtual int scrollTop() const;
virtual int scrollWidth() const;
virtual int scrollHeight() const;
virtual void setScrollLeft(int);
virtual void setScrollTop(int);
private:
// ScrollbarClient interface.
virtual void valueChanged(Scrollbar*);
virtual IntRect windowClipRect() const;
virtual bool isActive() const;
int itemHeight() const;
void valueChanged(unsigned listIndex);
int size() const;
int numVisibleItems() const;
int numItems() const;
int listHeight() const;
IntRect itemBoundingBoxRect(int tx, int ty, int index);
void paintScrollbar(PaintInfo&);
void paintItemForeground(PaintInfo&, int tx, int ty, int listIndex);
void paintItemBackground(PaintInfo&, int tx, int ty, int listIndex);
bool listIndexIsVisible(int index);
void scrollToRevealSelection();
bool m_optionsChanged;
bool m_scrollToRevealSelectionAfterLayout;
bool m_inAutoscroll;
int m_optionsWidth;
int m_indexOffset;
RefPtr<Scrollbar> m_vBar;
};
} // namepace WebCore
#endif // RenderListBox_h