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/*
* Copyright (C) 2003, 2006, 2007, 2008, 2013 Apple Inc. All rights reserved.
*
* 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.
*
*/
#pragma once
#include "BidiContext.h"
#include "LegacyInlineFlowBox.h"
#include "RenderBox.h"
#include <wtf/TZoneMalloc.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class HitTestResult;
class LogicalSelectionOffsetCaches;
class RenderBlockFlow;
struct BidiStatus;
struct GapRects;
class LegacyRootInlineBox : public LegacyInlineFlowBox, public CanMakeWeakPtr<LegacyRootInlineBox>, public CanMakeCheckedPtr<LegacyRootInlineBox> {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(LegacyRootInlineBox);
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(LegacyRootInlineBox);
public:
explicit LegacyRootInlineBox(RenderBlockFlow&);
virtual ~LegacyRootInlineBox();
RenderBlockFlow& blockFlow() const;
LegacyRootInlineBox* nextRootBox() const;
LegacyRootInlineBox* prevRootBox() const;
void adjustPosition(float dx, float dy) final;
LayoutUnit lineTop() const { return m_lineTop; }
LayoutUnit lineBottom() const { return m_lineBottom; }
LayoutUnit lineBoxWidth() const;
LayoutUnit lineBoxTop() const { return m_lineBoxTop; }
LayoutUnit lineBoxBottom() const { return m_lineBoxBottom; }
LayoutUnit lineBoxHeight() const { return lineBoxBottom() - lineBoxTop(); }
LayoutUnit selectionTop() const;
LayoutUnit selectionBottom() const;
LayoutUnit selectionHeight() const { return std::max<LayoutUnit>(0, selectionBottom() - selectionTop()); }
LayoutUnit selectionTopAdjustedForPrecedingBlock() const;
LayoutUnit selectionHeightAdjustedForPrecedingBlock() const { return std::max<LayoutUnit>(0, selectionBottom() - selectionTopAdjustedForPrecedingBlock()); }
void setLineTopBottomPositions(LayoutUnit top, LayoutUnit bottom, LayoutUnit lineBoxTop, LayoutUnit lineBoxBottom)
{
m_lineTop = top;
m_lineBottom = bottom;
m_lineBoxTop = lineBoxTop;
m_lineBoxBottom = lineBoxBottom;
}
LayoutUnit baselinePosition(FontBaseline baselineType) const final;
LayoutUnit lineHeight() const final;
RenderObject::HighlightState selectionState() const final;
const LegacyInlineBox* firstSelectedBox() const;
const LegacyInlineBox* lastSelectedBox() const;
void removeLineBoxFromRenderObject() final;
FontBaseline baselineType() const { return static_cast<FontBaseline>(m_baselineType); }
LayoutUnit logicalTopVisualOverflow() const
{
return LegacyInlineFlowBox::logicalTopVisualOverflow(lineTop());
}
LayoutUnit logicalBottomVisualOverflow() const
{
return LegacyInlineFlowBox::logicalBottomVisualOverflow(lineBottom());
}
#if ENABLE(TREE_DEBUGGING)
void outputLineBox(WTF::TextStream&, bool mark, int depth) const final;
ASCIILiteral boxName() const final;
#endif
private:
bool isRootInlineBox() const final { return true; }
LayoutUnit lineSnapAdjustment(LayoutUnit delta = 0_lu) const;
LayoutUnit m_lineTop;
LayoutUnit m_lineBottom;
LayoutUnit m_lineBoxTop;
LayoutUnit m_lineBoxBottom;
};
inline LegacyRootInlineBox* LegacyRootInlineBox::nextRootBox() const
{
return downcast<LegacyRootInlineBox>(m_nextLineBox);
}
inline LegacyRootInlineBox* LegacyRootInlineBox::prevRootBox() const
{
return downcast<LegacyRootInlineBox>(m_prevLineBox);
}
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_INLINE_BOX(LegacyRootInlineBox, isRootInlineBox())
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