RenderTableSection.h [plain text]
#pragma once
#include "RenderTable.h"
#include <wtf/Vector.h>
namespace WebCore {
class RenderTableCell;
class RenderTableRow;
enum CollapsedBorderSide {
CBSBefore,
CBSAfter,
CBSStart,
CBSEnd
};
struct CellSpan {
public:
CellSpan(unsigned start, unsigned end)
: start(start)
, end(end)
{
}
unsigned start;
unsigned end;
};
class RenderTableSection final : public RenderBox {
public:
RenderTableSection(Element&, RenderStyle&&);
RenderTableSection(Document&, RenderStyle&&);
virtual ~RenderTableSection();
RenderTableRow* firstRow() const;
RenderTableRow* lastRow() const;
void addChild(RenderObject* child, RenderObject* beforeChild = 0) override;
std::optional<int> firstLineBaseline() const override;
void addCell(RenderTableCell*, RenderTableRow* row);
LayoutUnit calcRowLogicalHeight();
void layoutRows();
void computeOverflowFromCells();
RenderTable* table() const { return downcast<RenderTable>(parent()); }
struct CellStruct {
Vector<RenderTableCell*, 1> cells;
bool inColSpan { false };
RenderTableCell* primaryCell() { return hasCells() ? cells[cells.size() - 1] : 0; }
const RenderTableCell* primaryCell() const { return hasCells() ? cells[cells.size() - 1] : 0; }
bool hasCells() const { return cells.size() > 0; }
};
typedef Vector<CellStruct> Row;
struct RowStruct {
Row row;
RenderTableRow* rowRenderer { nullptr };
LayoutUnit baseline;
Length logicalHeight;
};
const BorderValue& borderAdjoiningTableStart() const;
const BorderValue& borderAdjoiningTableEnd() const;
const BorderValue& borderAdjoiningStartCell(const RenderTableCell&) const;
const BorderValue& borderAdjoiningEndCell(const RenderTableCell&) const;
const RenderTableCell* firstRowCellAdjoiningTableStart() const;
const RenderTableCell* firstRowCellAdjoiningTableEnd() const;
CellStruct& cellAt(unsigned row, unsigned col);
const CellStruct& cellAt(unsigned row, unsigned col) const;
RenderTableCell* primaryCellAt(unsigned row, unsigned col);
RenderTableRow* rowRendererAt(unsigned row) const;
void appendColumn(unsigned pos);
void splitColumn(unsigned pos, unsigned first);
LayoutUnit calcOuterBorderBefore() const;
LayoutUnit calcOuterBorderAfter() const;
LayoutUnit calcOuterBorderStart() const;
LayoutUnit calcOuterBorderEnd() const;
void recalcOuterBorder();
LayoutUnit outerBorderBefore() const { return m_outerBorderBefore; }
LayoutUnit outerBorderAfter() const { return m_outerBorderAfter; }
LayoutUnit outerBorderStart() const { return m_outerBorderStart; }
LayoutUnit outerBorderEnd() const { return m_outerBorderEnd; }
LayoutUnit outerBorderLeft(const RenderStyle* styleForCellFlow) const;
LayoutUnit outerBorderRight(const RenderStyle* styleForCellFlow) const;
LayoutUnit outerBorderTop(const RenderStyle* styleForCellFlow) const;
LayoutUnit outerBorderBottom(const RenderStyle* styleForCellFlow) const;
unsigned numRows() const;
unsigned numColumns() const;
void recalcCells();
void recalcCellsIfNeeded();
bool needsCellRecalc() const { return m_needsCellRecalc; }
void setNeedsCellRecalc();
LayoutUnit rowBaseline(unsigned row);
void rowLogicalHeightChanged(unsigned rowIndex);
void clearCachedCollapsedBorders();
void removeCachedCollapsedBorders(const RenderTableCell&);
void setCachedCollapsedBorder(const RenderTableCell&, CollapsedBorderSide, CollapsedBorderValue);
CollapsedBorderValue cachedCollapsedBorder(const RenderTableCell&, CollapsedBorderSide);
LayoutUnit distributeExtraLogicalHeightToRows(LayoutUnit extraLogicalHeight);
static std::unique_ptr<RenderTableSection> createAnonymousWithParentRenderer(const RenderTable&);
std::unique_ptr<RenderBox> createAnonymousBoxWithSameTypeAs(const RenderBox&) const override;
void paint(PaintInfo&, const LayoutPoint&) override;
protected:
void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override;
private:
static std::unique_ptr<RenderTableSection> createTableSectionWithStyle(Document&, const RenderStyle&);
enum ShouldIncludeAllIntersectingCells {
IncludeAllIntersectingCells,
DoNotIncludeAllIntersectingCells
};
const char* renderName() const override { return (isAnonymous() || isPseudoElement()) ? "RenderTableSection (anonymous)" : "RenderTableSection"; }
bool canHaveChildren() const override { return true; }
bool isTableSection() const override { return true; }
void willBeRemovedFromTree() override;
void layout() override;
void paintCell(RenderTableCell*, PaintInfo&, const LayoutPoint&);
void paintObject(PaintInfo&, const LayoutPoint&) override;
void paintRowGroupBorder(const PaintInfo&, bool antialias, LayoutRect, BoxSide, CSSPropertyID borderColor, EBorderStyle, EBorderStyle tableBorderStyle);
void paintRowGroupBorderIfRequired(const PaintInfo&, const LayoutPoint& paintOffset, unsigned row, unsigned col, BoxSide, RenderTableCell* = 0);
LayoutUnit offsetLeftForRowGroupBorder(RenderTableCell*, const LayoutRect& rowGroupRect, unsigned row);
LayoutUnit offsetTopForRowGroupBorder(RenderTableCell*, BoxSide borderSide, unsigned row);
LayoutUnit verticalRowGroupBorderHeight(RenderTableCell*, const LayoutRect& rowGroupRect, unsigned row);
LayoutUnit horizontalRowGroupBorderWidth(RenderTableCell*, const LayoutRect& rowGroupRect, unsigned row, unsigned column);
void imageChanged(WrappedImagePtr, const IntRect* = 0) override;
bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) override;
void ensureRows(unsigned);
void relayoutCellIfFlexed(RenderTableCell&, int rowIndex, int rowHeight);
void distributeExtraLogicalHeightToPercentRows(LayoutUnit& extraLogicalHeight, int totalPercent);
void distributeExtraLogicalHeightToAutoRows(LayoutUnit& extraLogicalHeight, unsigned autoRowsCount);
void distributeRemainingExtraLogicalHeight(LayoutUnit& extraLogicalHeight);
bool hasOverflowingCell() const { return m_overflowingCells.size() || m_forceSlowPaintPathWithOverflowingCell; }
void computeOverflowFromCells(unsigned totalRows, unsigned nEffCols);
CellSpan fullTableRowSpan() const;
CellSpan fullTableColumnSpan() const { return CellSpan(0, table()->columns().size()); }
LayoutRect logicalRectForWritingModeAndDirection(const LayoutRect&) const;
CellSpan dirtiedRows(const LayoutRect& repaintRect) const;
CellSpan dirtiedColumns(const LayoutRect& repaintRect) const;
CellSpan spannedRows(const LayoutRect& flippedRect, ShouldIncludeAllIntersectingCells) const;
CellSpan spannedColumns(const LayoutRect& flippedRect, ShouldIncludeAllIntersectingCells) const;
void setLogicalPositionForCell(RenderTableCell*, unsigned effectiveColumn) const;
void firstChild() const = delete;
void lastChild() const = delete;
Vector<RowStruct> m_grid;
Vector<LayoutUnit> m_rowPos;
unsigned m_cCol { 0 };
unsigned m_cRow { 0 };
LayoutUnit m_outerBorderStart;
LayoutUnit m_outerBorderEnd;
LayoutUnit m_outerBorderBefore;
LayoutUnit m_outerBorderAfter;
bool m_needsCellRecalc { false };
HashSet<RenderTableCell*> m_overflowingCells;
bool m_forceSlowPaintPathWithOverflowingCell { false };
bool m_hasMultipleCellLevels { false };
HashMap<std::pair<const RenderTableCell*, int>, CollapsedBorderValue > m_cellsCollapsedBorders;
};
inline const BorderValue& RenderTableSection::borderAdjoiningTableStart() const
{
if (isDirectionSame(this, table()))
return style().borderStart();
return style().borderEnd();
}
inline const BorderValue& RenderTableSection::borderAdjoiningTableEnd() const
{
if (isDirectionSame(this, table()))
return style().borderEnd();
return style().borderStart();
}
inline RenderTableSection::CellStruct& RenderTableSection::cellAt(unsigned row, unsigned col)
{
recalcCellsIfNeeded();
return m_grid[row].row[col];
}
inline const RenderTableSection::CellStruct& RenderTableSection::cellAt(unsigned row, unsigned col) const
{
ASSERT(!m_needsCellRecalc);
return m_grid[row].row[col];
}
inline RenderTableCell* RenderTableSection::primaryCellAt(unsigned row, unsigned col)
{
recalcCellsIfNeeded();
CellStruct& c = m_grid[row].row[col];
return c.primaryCell();
}
inline RenderTableRow* RenderTableSection::rowRendererAt(unsigned row) const
{
ASSERT(!m_needsCellRecalc);
return m_grid[row].rowRenderer;
}
inline LayoutUnit RenderTableSection::outerBorderLeft(const RenderStyle* styleForCellFlow) const
{
if (styleForCellFlow->isHorizontalWritingMode())
return styleForCellFlow->isLeftToRightDirection() ? outerBorderStart() : outerBorderEnd();
return styleForCellFlow->isFlippedBlocksWritingMode() ? outerBorderAfter() : outerBorderBefore();
}
inline LayoutUnit RenderTableSection::outerBorderRight(const RenderStyle* styleForCellFlow) const
{
if (styleForCellFlow->isHorizontalWritingMode())
return styleForCellFlow->isLeftToRightDirection() ? outerBorderEnd() : outerBorderStart();
return styleForCellFlow->isFlippedBlocksWritingMode() ? outerBorderBefore() : outerBorderAfter();
}
inline LayoutUnit RenderTableSection::outerBorderTop(const RenderStyle* styleForCellFlow) const
{
if (styleForCellFlow->isHorizontalWritingMode())
return styleForCellFlow->isFlippedBlocksWritingMode() ? outerBorderAfter() : outerBorderBefore();
return styleForCellFlow->isLeftToRightDirection() ? outerBorderStart() : outerBorderEnd();
}
inline LayoutUnit RenderTableSection::outerBorderBottom(const RenderStyle* styleForCellFlow) const
{
if (styleForCellFlow->isHorizontalWritingMode())
return styleForCellFlow->isFlippedBlocksWritingMode() ? outerBorderBefore() : outerBorderAfter();
return styleForCellFlow->isLeftToRightDirection() ? outerBorderEnd() : outerBorderStart();
}
inline unsigned RenderTableSection::numRows() const
{
ASSERT(!m_needsCellRecalc);
return m_grid.size();
}
inline void RenderTableSection::recalcCellsIfNeeded()
{
if (m_needsCellRecalc)
recalcCells();
}
inline LayoutUnit RenderTableSection::rowBaseline(unsigned row)
{
recalcCellsIfNeeded();
return m_grid[row].baseline;
}
inline CellSpan RenderTableSection::fullTableRowSpan() const
{
ASSERT(!m_needsCellRecalc);
return CellSpan(0, m_grid.size());
}
inline std::unique_ptr<RenderBox> RenderTableSection::createAnonymousBoxWithSameTypeAs(const RenderBox& renderer) const
{
return RenderTableSection::createTableSectionWithStyle(renderer.document(), renderer.style());
}
}
SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderTableSection, isTableSection())