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* Copyright (C) 2005 Apple Computer
* 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
* 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 RenderButton_h
#define RenderButton_h
#include "core/html/HTMLInputElement.h"
#include "core/rendering/RenderFlexibleBox.h"
namespace blink {
// RenderButtons are just like normal flexboxes except that they will generate an anonymous block child.
// For inputs, they will also generate an anonymous RenderText and keep its style and content up
// to date as the button changes.
class RenderButton final : public RenderFlexibleBox {
explicit RenderButton(Element*);
virtual ~RenderButton();
virtual const char* renderName() const override { return "RenderButton"; }
virtual bool isOfType(RenderObjectType type) const override { return type == RenderObjectRenderButton || RenderFlexibleBox::isOfType(type); }
virtual bool canBeSelectionLeaf() const override { return node() && node()->hasEditableStyle(); }
virtual bool canCollapseAnonymousBlockChild() const override { return true; }
virtual void addChild(RenderObject* newChild, RenderObject *beforeChild = 0) override;
virtual void removeChild(RenderObject*) override;
virtual void removeLeftoverAnonymousBlock(RenderBlock*) override { }
virtual bool createsAnonymousWrapper() const override { return true; }
// <button> should allow whitespace even though RenderFlexibleBox doesn't.
virtual bool canHaveWhitespaceChildren() const override { return true; }
virtual bool canHaveGeneratedChildren() const override;
virtual bool hasControlClip() const override { return true; }
virtual LayoutRect controlClipRect(const LayoutPoint&) const override;
virtual int baselinePosition(FontBaseline, bool firstLine, LineDirectionMode, LinePositionMode) const override;
virtual void updateAnonymousChildStyle(const RenderObject* child, RenderStyle* childStyle) const override;
virtual bool hasLineIfEmpty() const override { return isHTMLInputElement(node()); }
RenderBlock* m_inner;
DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderButton, isRenderButton());
} // namespace blink
#endif // RenderButton_h