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/*
* This file is part of the select element renderer in WebCore.
*
* Copyright (C) 2006, 2007, 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.
* 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 "ScrollableArea.h"
namespace WebCore {
class RenderListBox : public RenderBlock, private ScrollableArea {
public:
RenderListBox(Element*);
virtual ~RenderListBox();
void selectionChanged();
void setOptionsChanged(bool changed) { m_optionsChanged = changed; }
int listIndexAtOffset(int x, int y);
IntRect itemBoundingBoxRect(int tx, int ty, int index);
bool scrollToRevealElementAtListIndex(int index);
bool listIndexIsVisible(int index);
int scrollToward(const IntPoint&); // Returns the new index or -1 if no scroll occurred
int size() const;
private:
virtual const char* renderName() const { return "RenderListBox"; }
virtual bool isListBox() const { return true; }
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, Node** stopNode = 0);
virtual bool logicalScroll(ScrollLogicalDirection, ScrollGranularity, float multiplier = 1, Node** stopNode = 0);
virtual void computePreferredLogicalWidths();
virtual int baselinePosition(FontBaseline, bool firstLine, LineDirectionMode, LinePositionMode = PositionOnContainingLine) const;
virtual void computeLogicalHeight();
virtual void layout();
virtual void addFocusRingRects(Vector<IntRect>&, int tx, int ty);
virtual bool canBeProgramaticallyScrolled(bool) const { return true; }
virtual void autoscroll();
virtual void stopAutoscroll();
virtual bool shouldPanScroll() const { return true; }
virtual void panScroll(const IntPoint&);
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);
virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction);
// ScrollableArea interface.
virtual int scrollSize(ScrollbarOrientation orientation) const;
virtual int scrollPosition(Scrollbar*) const;
virtual void setScrollOffset(const IntPoint&);
virtual void invalidateScrollbarRect(Scrollbar*, const IntRect&);
virtual bool isActive() const;
virtual bool isScrollCornerVisible() const { return false; } // We don't support resize on list boxes yet. If we did these would have to change.
virtual IntRect scrollCornerRect() const { return IntRect(); }
virtual void invalidateScrollCornerRect(const IntRect&) { }
virtual IntRect convertFromScrollbarToContainingView(const Scrollbar*, const IntRect&) const;
virtual IntRect convertFromContainingViewToScrollbar(const Scrollbar*, const IntRect&) const;
virtual IntPoint convertFromScrollbarToContainingView(const Scrollbar*, const IntPoint&) const;
virtual IntPoint convertFromContainingViewToScrollbar(const Scrollbar*, const IntPoint&) const;
virtual Scrollbar* verticalScrollbar() const { return m_vBar.get(); }
virtual IntSize contentsSize() const;
virtual int visibleHeight() const;
virtual int visibleWidth() const;
virtual IntPoint currentMousePosition() const;
virtual bool shouldSuspendScrollAnimations() const;
virtual void disconnectFromPage() { m_page = 0; }
// NOTE: This should only be called by the overriden setScrollOffset from ScrollableArea.
void scrollTo(int newOffset);
void setHasVerticalScrollbar(bool hasScrollbar);
PassRefPtr<Scrollbar> createScrollbar();
void destroyScrollbar();
int itemHeight() const;
void valueChanged(unsigned listIndex);
int numVisibleItems() const;
int numItems() const;
int listHeight() const;
void paintScrollbar(PaintInfo&, int tx, int ty);
void paintItemForeground(PaintInfo&, int tx, int ty, int listIndex);
void paintItemBackground(PaintInfo&, int tx, int ty, int listIndex);
void scrollToRevealSelection();
bool m_optionsChanged;
bool m_scrollToRevealSelectionAfterLayout;
bool m_inAutoscroll;
int m_optionsWidth;
int m_indexOffset;
RefPtr<Scrollbar> m_vBar;
Page* m_page;
};
inline RenderListBox* toRenderListBox(RenderObject* object)
{
ASSERT(!object || object->isListBox());
return static_cast<RenderListBox*>(object);
}
// This will catch anyone doing an unnecessary cast.
void toRenderListBox(const RenderListBox*);
} // namepace WebCore
#endif // RenderListBox_h
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