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/*
* Copyright (C) 2006, 2007 Apple Inc. All rights reserved.
* (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef RenderTextControl_h
#define RenderTextControl_h
#include "RenderBlock.h"
namespace WebCore {
class HTMLTextFormControlElement;
class RenderTextControl : public RenderBlock {
public:
virtual ~RenderTextControl();
HTMLTextFormControlElement* textFormControlElement() const;
virtual PassRefPtr<RenderStyle> createInnerTextStyle(const RenderStyle* startStyle) const = 0;
VisiblePosition visiblePositionForIndex(int index) const;
protected:
RenderTextControl(Node*);
// This convenience function should not be made public because innerTextElement may outlive the render tree.
HTMLElement* innerTextElement() const;
int scrollbarThickness() const;
void adjustInnerTextStyle(const RenderStyle* startStyle, RenderStyle* textBlockStyle) const;
virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
void hitInnerTextElement(HitTestResult&, const LayoutPoint& pointInContainer, const LayoutPoint& accumulatedOffset);
int textBlockWidth() const;
int textBlockHeight() const;
float scaleEmToUnits(int x) const;
static bool hasValidAvgCharWidth(AtomicString family);
virtual float getAvgCharWidth(AtomicString family);
virtual LayoutUnit preferredContentWidth(float charWidth) const = 0;
virtual LayoutUnit computeControlHeight(LayoutUnit lineHeight, LayoutUnit nonContentHeight) const = 0;
virtual RenderStyle* textBaseStyle() const = 0;
virtual void updateFromElement();
virtual void updateLogicalHeight() OVERRIDE;
virtual RenderObject* layoutSpecialExcludedChild(bool relayoutChildren);
private:
virtual const char* renderName() const { return "RenderTextControl"; }
virtual bool isTextControl() const { return true; }
virtual void computePreferredLogicalWidths();
virtual void removeLeftoverAnonymousBlock(RenderBlock*) { }
virtual bool avoidsFloats() const { return true; }
virtual bool canHaveGeneratedChildren() const OVERRIDE { return false; }
virtual bool canBeReplacedWithInlineRunIn() const OVERRIDE;
virtual void addFocusRingRects(Vector<IntRect>&, const LayoutPoint&);
virtual bool canBeProgramaticallyScrolled() const { return true; }
virtual bool requiresForcedStyleRecalcPropagation() const { return true; }
static bool isSelectableElement(HTMLElement*, Node*);
};
inline RenderTextControl* toRenderTextControl(RenderObject* object)
{
ASSERT(!object || object->isTextControl());
return static_cast<RenderTextControl*>(object);
}
inline const RenderTextControl* toRenderTextControl(const RenderObject* object)
{
ASSERT(!object || object->isTextControl());
return static_cast<const RenderTextControl*>(object);
}
// This will catch anyone doing an unnecessary cast.
void toRenderTextControl(const RenderTextControl*);
} // namespace WebCore
#endif // RenderTextControl_h
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