RenderTableSection.h [plain text]
#ifndef RenderTableSection_h
#define RenderTableSection_h
#include "RenderTable.h"
#include <wtf/Vector.h>
namespace WebCore {
class RenderTableRow;
enum CollapsedBorderSide {
CBSBefore,
CBSAfter,
CBSStart,
CBSEnd
};
class CellSpan {
public:
CellSpan(unsigned start, unsigned end)
: m_start(start)
, m_end(end)
{
}
unsigned start() const { return m_start; }
unsigned end() const { return m_end; }
unsigned& start() { return m_start; }
unsigned& end() { return m_end; }
private:
unsigned m_start;
unsigned m_end;
};
class RenderTableCell;
class RenderTableRow;
class RenderTableSection final : public RenderBox {
public:
RenderTableSection(Element&, PassRef<RenderStyle>);
RenderTableSection(Document&, PassRef<RenderStyle>);
virtual ~RenderTableSection();
RenderTableRow* firstRow() const;
RenderTableRow* lastRow() const;
virtual void addChild(RenderObject* child, RenderObject* beforeChild = 0) override;
virtual int firstLineBaseline() const override;
void addCell(RenderTableCell*, RenderTableRow* row);
int calcRowLogicalHeight();
void layoutRows();
void computeOverflowFromCells();
RenderTable* table() const { return toRenderTable(parent()); }
struct CellStruct {
Vector<RenderTableCell*, 1> cells;
bool inColSpan;
CellStruct()
: 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 {
RowStruct()
: rowRenderer(0)
, baseline()
{
}
Row row;
RenderTableRow* rowRenderer;
LayoutUnit baseline;
Length logicalHeight;
};
const BorderValue& borderAdjoiningTableStart() const
{
if (hasSameDirectionAs(table()))
return style().borderStart();
return style().borderEnd();
}
const BorderValue& borderAdjoiningTableEnd() const
{
if (hasSameDirectionAs(table()))
return style().borderEnd();
return style().borderStart();
}
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)
{
recalcCellsIfNeeded();
return m_grid[row].row[col];
}
const CellStruct& cellAt(unsigned row, unsigned col) const
{
ASSERT(!m_needsCellRecalc);
return m_grid[row].row[col];
}
RenderTableCell* primaryCellAt(unsigned row, unsigned col)
{
recalcCellsIfNeeded();
CellStruct& c = m_grid[row].row[col];
return c.primaryCell();
}
RenderTableRow* rowRendererAt(unsigned row) const
{
ASSERT(!m_needsCellRecalc);
return m_grid[row].rowRenderer;
}
void appendColumn(unsigned pos);
void splitColumn(unsigned pos, unsigned first);
int calcOuterBorderBefore() const;
int calcOuterBorderAfter() const;
int calcOuterBorderStart() const;
int calcOuterBorderEnd() const;
void recalcOuterBorder();
int outerBorderBefore() const { return m_outerBorderBefore; }
int outerBorderAfter() const { return m_outerBorderAfter; }
int outerBorderStart() const { return m_outerBorderStart; }
int outerBorderEnd() const { return m_outerBorderEnd; }
int outerBorderLeft(const RenderStyle* styleForCellFlow) const
{
if (styleForCellFlow->isHorizontalWritingMode())
return styleForCellFlow->isLeftToRightDirection() ? outerBorderStart() : outerBorderEnd();
return styleForCellFlow->isFlippedBlocksWritingMode() ? outerBorderAfter() : outerBorderBefore();
}
int outerBorderRight(const RenderStyle* styleForCellFlow) const
{
if (styleForCellFlow->isHorizontalWritingMode())
return styleForCellFlow->isLeftToRightDirection() ? outerBorderEnd() : outerBorderStart();
return styleForCellFlow->isFlippedBlocksWritingMode() ? outerBorderBefore() : outerBorderAfter();
}
int outerBorderTop(const RenderStyle* styleForCellFlow) const
{
if (styleForCellFlow->isHorizontalWritingMode())
return styleForCellFlow->isFlippedBlocksWritingMode() ? outerBorderAfter() : outerBorderBefore();
return styleForCellFlow->isLeftToRightDirection() ? outerBorderStart() : outerBorderEnd();
}
int outerBorderBottom(const RenderStyle* styleForCellFlow) const
{
if (styleForCellFlow->isHorizontalWritingMode())
return styleForCellFlow->isFlippedBlocksWritingMode() ? outerBorderBefore() : outerBorderAfter();
return styleForCellFlow->isLeftToRightDirection() ? outerBorderEnd() : outerBorderStart();
}
unsigned numRows() const
{
ASSERT(!m_needsCellRecalc);
return m_grid.size();
}
unsigned numColumns() const;
void recalcCells();
void recalcCellsIfNeeded()
{
if (m_needsCellRecalc)
recalcCells();
}
bool needsCellRecalc() const { return m_needsCellRecalc; }
void setNeedsCellRecalc();
LayoutUnit rowBaseline(unsigned row)
{
recalcCellsIfNeeded();
return m_grid[row].baseline;
}
void rowLogicalHeightChanged(unsigned rowIndex);
void removeCachedCollapsedBorders(const RenderTableCell*);
void setCachedCollapsedBorder(const RenderTableCell*, CollapsedBorderSide, CollapsedBorderValue);
CollapsedBorderValue& cachedCollapsedBorder(const RenderTableCell*, CollapsedBorderSide);
int distributeExtraLogicalHeightToRows(int extraLogicalHeight);
static RenderTableSection* createAnonymousWithParentRenderer(const RenderObject*);
virtual RenderBox* createAnonymousBoxWithSameTypeAs(const RenderObject* parent) const override
{
return createAnonymousWithParentRenderer(parent);
}
virtual void paint(PaintInfo&, const LayoutPoint&) override;
protected:
virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override;
private:
enum ShouldIncludeAllIntersectingCells {
IncludeAllIntersectingCells,
DoNotIncludeAllIntersectingCells
};
virtual const char* renderName() const override { return (isAnonymous() || isPseudoElement()) ? "RenderTableSection (anonymous)" : "RenderTableSection"; }
virtual bool canHaveChildren() const override { return true; }
virtual bool isTableSection() const override { return true; }
virtual void willBeRemovedFromTree() override;
virtual void layout() override;
void paintCell(RenderTableCell*, PaintInfo&, const LayoutPoint&);
virtual 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);
int offsetLeftForRowGroupBorder(RenderTableCell*, const LayoutRect& rowGroupRect, unsigned row);
int offsetTopForRowGroupBorder(RenderTableCell*, BoxSide borderSide, unsigned row);
int verticalRowGroupBorderHeight(RenderTableCell*, const LayoutRect& rowGroupRect, unsigned row);
int horizontalRowGroupBorderWidth(RenderTableCell*, const LayoutRect& rowGroupRect, unsigned row, unsigned column);
virtual void imageChanged(WrappedImagePtr, const IntRect* = 0) override;
virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) override;
void ensureRows(unsigned);
void distributeExtraLogicalHeightToPercentRows(int& extraLogicalHeight, int totalPercent);
void distributeExtraLogicalHeightToAutoRows(int& extraLogicalHeight, unsigned autoRowsCount);
void distributeRemainingExtraLogicalHeight(int& extraLogicalHeight);
bool hasOverflowingCell() const { return m_overflowingCells.size() || m_forceSlowPaintPathWithOverflowingCell; }
void computeOverflowFromCells(unsigned totalRows, unsigned nEffCols);
CellSpan fullTableRowSpan() const
{
ASSERT(!m_needsCellRecalc);
return CellSpan(0, m_grid.size());
}
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<int> m_rowPos;
unsigned m_cCol;
unsigned m_cRow;
int m_outerBorderStart;
int m_outerBorderEnd;
int m_outerBorderBefore;
int m_outerBorderAfter;
bool m_needsCellRecalc;
HashSet<RenderTableCell*> m_overflowingCells;
bool m_forceSlowPaintPathWithOverflowingCell;
bool m_hasMultipleCellLevels;
HashMap<std::pair<const RenderTableCell*, int>, CollapsedBorderValue > m_cellsCollapsedBorders;
};
RENDER_OBJECT_TYPE_CASTS(RenderTableSection, isTableSection())
}
#endif // RenderTableSection_h