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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
* 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 LayoutButton_h
#define LayoutButton_h
#include "core/html/HTMLInputElement.h"
#include "core/layout/LayoutFlexibleBox.h"
namespace blink {
// LayoutButtons are just like normal flexboxes except that they will generate an anonymous block child.
// For inputs, they will also generate an anonymous LayoutText and keep its style and content up
// to date as the button changes.
class LayoutButton final : public LayoutFlexibleBox {
public:
explicit LayoutButton(Element*);
~LayoutButton() override;
const char* name() const override { return "LayoutButton"; }
bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectLayoutButton || LayoutFlexibleBox::isOfType(type); }
bool canBeSelectionLeaf() const override { return node() && node()->hasEditableStyle(); }
bool canCollapseAnonymousBlockChild() const override { return true; }
void addChild(LayoutObject* newChild, LayoutObject *beforeChild = nullptr) override;
void removeChild(LayoutObject*) override;
void removeLeftoverAnonymousBlock(LayoutBlock*) override { }
bool createsAnonymousWrapper() const override { return true; }
bool hasControlClip() const override;
LayoutRect controlClipRect(const LayoutPoint&) const override;
int baselinePosition(FontBaseline, bool firstLine, LineDirectionMode, LinePositionMode) const override;
private:
void updateAnonymousChildStyle(const LayoutObject& child, ComputedStyle& childStyle) const override;
bool hasLineIfEmpty() const override { return isHTMLInputElement(node()); }
LayoutBlock* m_inner;
};
DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutButton, isLayoutButton());
} // namespace blink
#endif // LayoutButton_h
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