345 lines
13 KiB
C++
345 lines
13 KiB
C++
/*
|
|
* Copyright (C) 1997 Martin Jones (mjones@kde.org)
|
|
* (C) 1997 Torben Weis (weis@kde.org)
|
|
* (C) 1998 Waldo Bastian (bastian@kde.org)
|
|
* (C) 1999 Lars Knoll (knoll@kde.org)
|
|
* (C) 1999 Antti Koivisto (koivisto@kde.org)
|
|
* Copyright (C) 2003, 2004, 2005, 2006, 2009 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 "RenderTable.h"
|
|
#include <wtf/Vector.h>
|
|
|
|
namespace WebCore {
|
|
|
|
class RenderTableCell;
|
|
class RenderTableRow;
|
|
|
|
enum CollapsedBorderSide {
|
|
CBSBefore,
|
|
CBSAfter,
|
|
CBSStart,
|
|
CBSEnd
|
|
};
|
|
|
|
// Helper class for paintObject.
|
|
struct CellSpan {
|
|
public:
|
|
explicit CellSpan(unsigned start, unsigned end)
|
|
: start(start)
|
|
, end(end)
|
|
{
|
|
}
|
|
|
|
unsigned start;
|
|
unsigned end;
|
|
};
|
|
|
|
class RenderTableSection final : public RenderBox {
|
|
WTF_MAKE_ISO_ALLOCATED(RenderTableSection);
|
|
public:
|
|
RenderTableSection(Element&, RenderStyle&&);
|
|
RenderTableSection(Document&, RenderStyle&&);
|
|
virtual ~RenderTableSection();
|
|
|
|
RenderTableRow* firstRow() const;
|
|
RenderTableRow* lastRow() const;
|
|
|
|
std::optional<LayoutUnit> 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 }; // true for columns after the first in a colspan
|
|
|
|
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();
|
|
void removeRedundantColumns();
|
|
|
|
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);
|
|
|
|
// distributeExtraLogicalHeightToRows methods return the *consumed* extra logical height.
|
|
// FIXME: We may want to introduce a structure holding the in-flux layout information.
|
|
LayoutUnit distributeExtraLogicalHeightToRows(LayoutUnit extraLogicalHeight);
|
|
|
|
static RenderPtr<RenderTableSection> createAnonymousWithParentRenderer(const RenderTable&);
|
|
RenderPtr<RenderBox> createAnonymousBoxWithSameTypeAs(const RenderBox&) const override;
|
|
|
|
void paint(PaintInfo&, const LayoutPoint&) override;
|
|
|
|
void willInsertTableRow(RenderTableRow& child, RenderObject* beforeChild);
|
|
|
|
private:
|
|
void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override;
|
|
|
|
static RenderPtr<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(IsInternalMove) 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, BorderStyle, BorderStyle 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()); }
|
|
|
|
// Flip the rect so it aligns with the coordinates used by the rowPos and columnPos vectors.
|
|
LayoutRect logicalRectForWritingModeAndDirection(const LayoutRect&) const;
|
|
|
|
CellSpan dirtiedRows(const LayoutRect& repaintRect) const;
|
|
CellSpan dirtiedColumns(const LayoutRect& repaintRect) const;
|
|
|
|
// These two functions take a rectangle as input that has been flipped by logicalRectForWritingModeAndDirection.
|
|
// The returned span of rows or columns is end-exclusive, and empty if start==end.
|
|
// The IncludeAllIntersectingCells argument is used to determine which cells to include when
|
|
// an edge of the flippedRect lies exactly on a cell boundary. Using IncludeAllIntersectingCells
|
|
// will return both cells, and using DoNotIncludeAllIntersectingCells will return only the cell
|
|
// that hittesting should return.
|
|
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;
|
|
|
|
// the current insertion position
|
|
unsigned m_cCol { 0 };
|
|
unsigned m_cRow { 0 };
|
|
|
|
LayoutUnit m_outerBorderStart;
|
|
LayoutUnit m_outerBorderEnd;
|
|
LayoutUnit m_outerBorderBefore;
|
|
LayoutUnit m_outerBorderAfter;
|
|
|
|
// This HashSet holds the overflowing cells for faster painting.
|
|
// If we have more than gMaxAllowedOverflowingCellRatio * total cells, it will be empty
|
|
// and m_forceSlowPaintPathWithOverflowingCell will be set to save memory.
|
|
HashSet<RenderTableCell*> m_overflowingCells;
|
|
|
|
// This map holds the collapsed border values for cells with collapsed borders.
|
|
// It is held at RenderTableSection level to spare memory consumption by table cells.
|
|
HashMap<std::pair<const RenderTableCell*, int>, CollapsedBorderValue > m_cellsCollapsedBorders;
|
|
|
|
bool m_forceSlowPaintPathWithOverflowingCell { false };
|
|
bool m_hasMultipleCellLevels { false };
|
|
bool m_needsCellRecalc { false };
|
|
};
|
|
|
|
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 RenderPtr<RenderBox> RenderTableSection::createAnonymousBoxWithSameTypeAs(const RenderBox& renderer) const
|
|
{
|
|
return RenderTableSection::createTableSectionWithStyle(renderer.document(), renderer.style());
|
|
}
|
|
|
|
} // namespace WebCore
|
|
|
|
SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderTableSection, isTableSection())
|