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/*
* Copyright (C) 2003, 2004, 2005, 2006, 2007 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 "LegacyInlineBox.h"
#include "RenderOverflow.h"
#include "ShadowData.h"
namespace WebCore {
class HitTestRequest;
class HitTestResult;
class LegacyInlineTextBox;
class RenderLineBoxList;
class Font;
struct GlyphOverflow;
typedef UncheckedKeyHashMap<const LegacyInlineTextBox*, std::pair<Vector<SingleThreadWeakPtr<const Font>>, GlyphOverflow>> GlyphOverflowAndFallbackFontsMap;
class LegacyInlineFlowBox : public LegacyInlineBox {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED(LegacyInlineFlowBox);
public:
explicit LegacyInlineFlowBox(RenderBoxModelObject& renderer)
: LegacyInlineBox(renderer)
{
}
#if !ASSERT_WITH_SECURITY_IMPLICATION_DISABLED
virtual ~LegacyInlineFlowBox();
#endif
#if ENABLE(TREE_DEBUGGING)
void outputLineTreeAndMark(WTF::TextStream&, const LegacyInlineBox* markedBox, int depth) const override;
ASCIILiteral boxName() const override;
#endif
RenderBoxModelObject& renderer() const { return downcast<RenderBoxModelObject>(LegacyInlineBox::renderer()); }
const RenderStyle& lineStyle() const { return isFirstLine() ? renderer().firstLineStyle() : renderer().style(); }
LegacyInlineFlowBox* prevLineBox() const { return m_prevLineBox; }
LegacyInlineFlowBox* nextLineBox() const { return m_nextLineBox; }
void setNextLineBox(LegacyInlineFlowBox* n) { m_nextLineBox = n; }
void setPreviousLineBox(LegacyInlineFlowBox* p) { m_prevLineBox = p; }
LegacyInlineBox* firstChild() const { checkConsistency(); return m_firstChild; }
LegacyInlineBox* lastChild() const { checkConsistency(); return m_lastChild; }
bool isLeaf() const final { return false; }
LegacyInlineBox* firstLeafDescendant() const;
LegacyInlineBox* lastLeafDescendant() const;
void setConstructed() final
{
LegacyInlineBox::setConstructed();
for (auto* child = firstChild(); child; child = child->nextOnLine())
child->setConstructed();
}
void addToLine(LegacyInlineBox* child);
void deleteLine() final;
void adjustPosition(float dx, float dy) override;
virtual void removeLineBoxFromRenderObject();
void computeOverflow(LayoutUnit lineTop, LayoutUnit lineBottom, GlyphOverflowAndFallbackFontsMap&);
void removeChild(LegacyInlineBox* child);
RenderObject::HighlightState selectionState() const override;
bool hasTextChildren() const { return m_hasTextChildren; }
bool hasTextDescendants() const { return m_hasTextDescendants; }
void setHasTextChildren() { m_hasTextChildren = true; setHasTextDescendants(); }
void setHasTextDescendants() { m_hasTextDescendants = true; }
void checkConsistency() const;
void setHasBadChildList();
LayoutRect visualOverflowRect(LayoutUnit lineTop, LayoutUnit lineBottom) const
{
return m_overflow ? m_overflow->visualOverflowRect() : enclosingLayoutRect(frameRectIncludingLineHeight(lineTop, lineBottom));
}
LayoutUnit logicalLeftVisualOverflow() const { return m_overflow ? (isHorizontal() ? m_overflow->visualOverflowRect().x() : m_overflow->visualOverflowRect().y()) : LayoutUnit(logicalLeft()); }
LayoutUnit logicalRightVisualOverflow() const { return m_overflow ? (isHorizontal() ? m_overflow->visualOverflowRect().maxX() : m_overflow->visualOverflowRect().maxY()) : LayoutUnit(ceilf(logicalRight())); }
LayoutUnit logicalTopVisualOverflow(LayoutUnit lineTop) const
{
if (m_overflow)
return isHorizontal() ? m_overflow->visualOverflowRect().y() : m_overflow->visualOverflowRect().x();
return lineTop;
}
LayoutUnit logicalBottomVisualOverflow(LayoutUnit lineBottom) const
{
if (m_overflow)
return isHorizontal() ? m_overflow->visualOverflowRect().maxY() : m_overflow->visualOverflowRect().maxX();
return lineBottom;
}
LayoutRect logicalVisualOverflowRect(LayoutUnit lineTop, LayoutUnit lineBottom) const
{
LayoutRect result = visualOverflowRect(lineTop, lineBottom);
if (!renderer().isHorizontalWritingMode())
result = result.transposedRect();
return result;
}
void setOverflowFromLogicalRects(const LayoutRect& logicalVisualOverflow, LayoutUnit lineTop, LayoutUnit lineBottom);
void setVisualOverflow(const LayoutRect&, LayoutUnit lineTop, LayoutUnit lineBottom);
FloatRect frameRectIncludingLineHeight(LayoutUnit lineTop, LayoutUnit lineBottom) const
{
if (isHorizontal())
return FloatRect(x(), lineTop, width(), lineBottom - lineTop);
return FloatRect(lineTop, y(), lineBottom - lineTop, height());
}
FloatRect logicalFrameRectIncludingLineHeight(LayoutUnit lineTop, LayoutUnit lineBottom) const
{
return FloatRect(logicalLeft(), lineTop, logicalWidth(), lineBottom - lineTop);
}
bool hasSelfPaintInlineBox() const { return m_hasSelfPaintInlineBox; }
private:
bool isInlineFlowBox() const final { return true; }
void boxModelObject() const = delete;
void addTextBoxVisualOverflow(LegacyInlineTextBox&, GlyphOverflowAndFallbackFontsMap&, LayoutRect& logicalVisualOverflow);
private:
unsigned m_hasTextChildren : 1 { false };
unsigned m_hasTextDescendants : 1 { false };
protected:
// The following members are only used by RootInlineBox but moved here to keep the bits packed.
// Whether or not this line uses alphabetic or ideographic baselines by default.
unsigned m_baselineType : 1 { AlphabeticBaseline }; // FontBaseline
unsigned m_lineBreakBidiStatusEor : 5; // UCharDirection
unsigned m_lineBreakBidiStatusLastStrong : 5; // UCharDirection
unsigned m_lineBreakBidiStatusLast : 5; // UCharDirection
unsigned m_hasSelfPaintInlineBox : 1 { false };
// End of RootInlineBox-specific members.
#if !ASSERT_WITH_SECURITY_IMPLICATION_DISABLED
private:
unsigned m_hasBadChildList : 1 { false };
#endif
protected:
std::unique_ptr<RenderOverflow> m_overflow;
LegacyInlineBox* m_firstChild { nullptr };
LegacyInlineBox* m_lastChild { nullptr };
LegacyInlineFlowBox* m_prevLineBox { nullptr }; // The previous box that also uses our RenderObject
LegacyInlineFlowBox* m_nextLineBox { nullptr }; // The next box that also uses our RenderObject
};
#ifdef NDEBUG
inline void LegacyInlineFlowBox::checkConsistency() const
{
}
#endif
#if ASSERT_WITH_SECURITY_IMPLICATION_DISABLED
inline void LegacyInlineFlowBox::setHasBadChildList()
{
}
#endif
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_INLINE_BOX(LegacyInlineFlowBox, isInlineFlowBox())
#if ENABLE(TREE_DEBUGGING)
// Outside the WebCore namespace for ease of invocation from the debugger.
void showTree(const WebCore::LegacyInlineFlowBox*);
#endif
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