| /* |
| * 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, 2008, 2009, 2010 Apple Inc. All rights reserved. |
| * Copyright (C) 2006 Alexey Proskuryakov (ap@nypop.com) |
| * |
| * 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. |
| */ |
| |
| #include "config.h" |
| #include "RenderTableSection.h" |
| #include "Document.h" |
| #include "HitTestResult.h" |
| #include "HTMLNames.h" |
| #include "PaintInfo.h" |
| #include "RenderChildIterator.h" |
| #include "RenderLayoutState.h" |
| #include "RenderTableCell.h" |
| #include "RenderTableCol.h" |
| #include "RenderTableRow.h" |
| #include "RenderTextControl.h" |
| #include "RenderTreeBuilder.h" |
| #include "RenderView.h" |
| #include "StyleInheritedData.h" |
| #include <limits> |
| #include <wtf/IsoMallocInlines.h> |
| #include <wtf/HashSet.h> |
| #include <wtf/StackStats.h> |
| |
| namespace WebCore { |
| |
| using namespace HTMLNames; |
| |
| WTF_MAKE_ISO_ALLOCATED_IMPL(RenderTableSection); |
| |
| // Those 2 variables are used to balance the memory consumption vs the repaint time on big tables. |
| static const unsigned gMinTableSizeToUseFastPaintPathWithOverflowingCell = 75 * 75; |
| static const float gMaxAllowedOverflowingCellRatioForFastPaintPath = 0.1f; |
| |
| static inline void setRowLogicalHeightToRowStyleLogicalHeightIfNotRelative(RenderTableSection::RowStruct& row) |
| { |
| ASSERT(row.rowRenderer); |
| row.logicalHeight = row.rowRenderer->style().logicalHeight(); |
| if (row.logicalHeight.isRelative()) |
| row.logicalHeight = Length(); |
| } |
| |
| static inline void updateLogicalHeightForCell(RenderTableSection::RowStruct& row, const RenderTableCell* cell) |
| { |
| // We ignore height settings on rowspan cells. |
| if (cell->rowSpan() != 1) |
| return; |
| |
| Length logicalHeight = cell->style().logicalHeight(); |
| if (logicalHeight.isPositive() || (logicalHeight.isRelative() && logicalHeight.value() >= 0)) { |
| Length cRowLogicalHeight = row.logicalHeight; |
| switch (logicalHeight.type()) { |
| case Percent: |
| if (!cRowLogicalHeight.isPercent() || cRowLogicalHeight.percent() < logicalHeight.percent()) |
| row.logicalHeight = logicalHeight; |
| break; |
| case Fixed: |
| if (cRowLogicalHeight.isAuto() || cRowLogicalHeight.isRelative() |
| || (cRowLogicalHeight.isFixed() && cRowLogicalHeight.value() < logicalHeight.value())) |
| row.logicalHeight = logicalHeight; |
| break; |
| case Relative: |
| default: |
| break; |
| } |
| } |
| } |
| |
| RenderTableSection::RenderTableSection(Element& element, RenderStyle&& style) |
| : RenderBox(element, WTFMove(style), 0) |
| { |
| setInline(false); |
| } |
| |
| RenderTableSection::RenderTableSection(Document& document, RenderStyle&& style) |
| : RenderBox(document, WTFMove(style), 0) |
| { |
| setInline(false); |
| } |
| |
| RenderTableSection::~RenderTableSection() = default; |
| |
| void RenderTableSection::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle) |
| { |
| RenderBox::styleDidChange(diff, oldStyle); |
| propagateStyleToAnonymousChildren(PropagateToAllChildren); |
| |
| // If border was changed, notify table. |
| RenderTable* table = this->table(); |
| if (table && oldStyle && oldStyle->border() != style().border()) |
| table->invalidateCollapsedBorders(); |
| } |
| |
| void RenderTableSection::willBeRemovedFromTree() |
| { |
| RenderBox::willBeRemovedFromTree(); |
| |
| // Preventively invalidate our cells as we may be re-inserted into |
| // a new table which would require us to rebuild our structure. |
| setNeedsCellRecalc(); |
| } |
| |
| void RenderTableSection::willInsertTableRow(RenderTableRow& child, RenderObject* beforeChild) |
| { |
| if (beforeChild) |
| setNeedsCellRecalc(); |
| |
| unsigned insertionRow = m_cRow; |
| ++m_cRow; |
| m_cCol = 0; |
| |
| ensureRows(m_cRow); |
| |
| m_grid[insertionRow].rowRenderer = &child; |
| child.setRowIndex(insertionRow); |
| |
| if (!beforeChild) |
| setRowLogicalHeightToRowStyleLogicalHeightIfNotRelative(m_grid[insertionRow]); |
| } |
| |
| void RenderTableSection::ensureRows(unsigned numRows) |
| { |
| if (numRows <= m_grid.size()) |
| return; |
| |
| unsigned oldSize = m_grid.size(); |
| m_grid.grow(numRows); |
| |
| unsigned effectiveColumnCount = std::max(1u, table()->numEffCols()); |
| for (unsigned row = oldSize; row < m_grid.size(); ++row) |
| m_grid[row].row.resizeToFit(effectiveColumnCount); |
| } |
| |
| void RenderTableSection::addCell(RenderTableCell* cell, RenderTableRow* row) |
| { |
| // We don't insert the cell if we need cell recalc as our internal columns' representation |
| // will have drifted from the table's representation. Also recalcCells will call addCell |
| // at a later time after sync'ing our columns' with the table's. |
| if (needsCellRecalc()) |
| return; |
| |
| unsigned rSpan = cell->rowSpan(); |
| unsigned cSpan = cell->colSpan(); |
| const Vector<RenderTable::ColumnStruct>& columns = table()->columns(); |
| unsigned nCols = columns.size(); |
| unsigned insertionRow = row->rowIndex(); |
| |
| // ### mozilla still seems to do the old HTML way, even for strict DTD |
| // (see the annotation on table cell layouting in the CSS specs and the testcase below: |
| // <TABLE border> |
| // <TR><TD>1 <TD rowspan="2">2 <TD>3 <TD>4 |
| // <TR><TD colspan="2">5 |
| // </TABLE> |
| while (m_cCol < nCols && (cellAt(insertionRow, m_cCol).hasCells() || cellAt(insertionRow, m_cCol).inColSpan)) |
| m_cCol++; |
| |
| updateLogicalHeightForCell(m_grid[insertionRow], cell); |
| |
| ensureRows(insertionRow + rSpan); |
| |
| m_grid[insertionRow].rowRenderer = row; |
| |
| unsigned col = m_cCol; |
| // tell the cell where it is |
| bool inColSpan = false; |
| while (cSpan) { |
| unsigned currentSpan; |
| if (m_cCol >= nCols) { |
| table()->appendColumn(cSpan); |
| currentSpan = cSpan; |
| } else { |
| if (cSpan < columns[m_cCol].span) |
| table()->splitColumn(m_cCol, cSpan); |
| currentSpan = columns[m_cCol].span; |
| } |
| for (unsigned r = 0; r < rSpan; r++) { |
| CellStruct& c = cellAt(insertionRow + r, m_cCol); |
| ASSERT(cell); |
| c.cells.append(cell); |
| // If cells overlap then we take the slow path for painting. |
| if (c.cells.size() > 1) |
| m_hasMultipleCellLevels = true; |
| if (inColSpan) |
| c.inColSpan = true; |
| } |
| m_cCol++; |
| cSpan -= currentSpan; |
| inColSpan = true; |
| } |
| cell->setCol(table()->effColToCol(col)); |
| } |
| |
| static LayoutUnit resolveLogicalHeightForRow(const Length& rowLogicalHeight) |
| { |
| if (rowLogicalHeight.isFixed()) |
| return LayoutUnit(rowLogicalHeight.value()); |
| if (rowLogicalHeight.isCalculated()) |
| return LayoutUnit(rowLogicalHeight.nonNanCalculatedValue(0)); |
| return 0; |
| } |
| |
| LayoutUnit RenderTableSection::calcRowLogicalHeight() |
| { |
| #ifndef NDEBUG |
| SetLayoutNeededForbiddenScope layoutForbiddenScope(this); |
| #endif |
| |
| ASSERT(!needsLayout()); |
| |
| RenderTableCell* cell; |
| |
| // We ignore the border-spacing on any non-top section as it is already included in the previous section's last row position. |
| LayoutUnit spacing; |
| if (this == table()->topSection()) |
| spacing = table()->vBorderSpacing(); |
| |
| LayoutStateMaintainer statePusher(*this, locationOffset(), hasTransform() || hasReflection() || style().isFlippedBlocksWritingMode()); |
| |
| m_rowPos.resize(m_grid.size() + 1); |
| m_rowPos[0] = spacing; |
| |
| unsigned totalRows = m_grid.size(); |
| |
| for (unsigned r = 0; r < totalRows; r++) { |
| m_grid[r].baseline = 0; |
| LayoutUnit baselineDescent; |
| |
| // Our base size is the biggest logical height from our cells' styles (excluding row spanning cells). |
| m_rowPos[r + 1] = std::max(m_rowPos[r] + resolveLogicalHeightForRow(m_grid[r].logicalHeight), 0_lu); |
| |
| Row& row = m_grid[r].row; |
| unsigned totalCols = row.size(); |
| |
| for (unsigned c = 0; c < totalCols; c++) { |
| CellStruct& current = cellAt(r, c); |
| for (unsigned i = 0; i < current.cells.size(); i++) { |
| cell = current.cells[i]; |
| if (current.inColSpan && cell->rowSpan() == 1) |
| continue; |
| |
| // FIXME: We are always adding the height of a rowspan to the last rows which doesn't match |
| // other browsers. See webkit.org/b/52185 for example. |
| if ((cell->rowIndex() + cell->rowSpan() - 1) != r) { |
| // We will apply the height of the rowspan to the current row if next row is not valid. |
| if ((r + 1) < totalRows) { |
| unsigned col = 0; |
| CellStruct nextRowCell = cellAt(r + 1, col); |
| |
| // We are trying to find that next row is valid or not. |
| while (nextRowCell.cells.size() && nextRowCell.cells[0]->rowSpan() > 1 && nextRowCell.cells[0]->rowIndex() < (r + 1)) { |
| col++; |
| if (col < totalCols) |
| nextRowCell = cellAt(r + 1, col); |
| else |
| break; |
| } |
| |
| // We are adding the height of the rowspan to the current row if next row is not valid. |
| if (col < totalCols && nextRowCell.cells.size()) |
| continue; |
| } |
| } |
| |
| // For row spanning cells, |r| is the last row in the span. |
| unsigned cellStartRow = cell->rowIndex(); |
| |
| if (cell->hasOverrideContentLogicalHeight()) { |
| cell->clearIntrinsicPadding(); |
| cell->clearOverrideContentSize(); |
| cell->setChildNeedsLayout(MarkOnlyThis); |
| cell->layoutIfNeeded(); |
| } |
| |
| LayoutUnit cellLogicalHeight = cell->logicalHeightForRowSizing(); |
| m_rowPos[r + 1] = std::max(m_rowPos[r + 1], m_rowPos[cellStartRow] + cellLogicalHeight); |
| |
| // Find out the baseline. The baseline is set on the first row in a rowspan. |
| if (cell->isBaselineAligned()) { |
| LayoutUnit baselinePosition = cell->cellBaselinePosition() - cell->intrinsicPaddingBefore(); |
| LayoutUnit borderAndComputedPaddingBefore = cell->borderAndPaddingBefore() - cell->intrinsicPaddingBefore(); |
| if (baselinePosition > borderAndComputedPaddingBefore) { |
| m_grid[cellStartRow].baseline = std::max(m_grid[cellStartRow].baseline, baselinePosition); |
| // The descent of a cell that spans multiple rows does not affect the height of the first row it spans, so don't let it |
| // become the baseline descent applied to the rest of the row. Also we don't account for the baseline descent of |
| // non-spanning cells when computing a spanning cell's extent. |
| LayoutUnit cellStartRowBaselineDescent; |
| if (cell->rowSpan() == 1) { |
| baselineDescent = std::max(baselineDescent, cellLogicalHeight - baselinePosition); |
| cellStartRowBaselineDescent = baselineDescent; |
| } |
| m_rowPos[cellStartRow + 1] = std::max(m_rowPos[cellStartRow + 1], m_rowPos[cellStartRow] + m_grid[cellStartRow].baseline + cellStartRowBaselineDescent); |
| } |
| } |
| } |
| } |
| |
| // Add the border-spacing to our final position. |
| // Use table border-spacing even in non-top sections |
| spacing = table()->vBorderSpacing(); |
| m_rowPos[r + 1] += m_grid[r].rowRenderer ? spacing : 0_lu; |
| m_rowPos[r + 1] = std::max(m_rowPos[r + 1], m_rowPos[r]); |
| } |
| |
| ASSERT(!needsLayout()); |
| |
| return m_rowPos[m_grid.size()]; |
| } |
| |
| void RenderTableSection::layout() |
| { |
| StackStats::LayoutCheckPoint layoutCheckPoint; |
| ASSERT(needsLayout()); |
| ASSERT(!needsCellRecalc()); |
| ASSERT(!table()->needsSectionRecalc()); |
| |
| m_forceSlowPaintPathWithOverflowingCell = false; |
| // addChild may over-grow m_grid but we don't want to throw away the memory too early as addChild |
| // can be called in a loop (e.g during parsing). Doing it now ensures we have a stable-enough structure. |
| m_grid.shrinkToFit(); |
| |
| LayoutStateMaintainer statePusher(*this, locationOffset(), hasTransform() || hasReflection() || style().isFlippedBlocksWritingMode()); |
| bool paginated = view().frameView().layoutContext().layoutState()->isPaginated(); |
| |
| const Vector<LayoutUnit>& columnPos = table()->columnPositions(); |
| |
| for (unsigned r = 0; r < m_grid.size(); ++r) { |
| Row& row = m_grid[r].row; |
| unsigned cols = row.size(); |
| // First, propagate our table layout's information to the cells. This will mark the row as needing layout |
| // if there was a column logical width change. |
| for (unsigned startColumn = 0; startColumn < cols; ++startColumn) { |
| CellStruct& current = row[startColumn]; |
| RenderTableCell* cell = current.primaryCell(); |
| if (!cell || current.inColSpan) |
| continue; |
| |
| unsigned endCol = startColumn; |
| unsigned cspan = cell->colSpan(); |
| while (cspan && endCol < cols) { |
| ASSERT(endCol < table()->columns().size()); |
| cspan -= table()->columns()[endCol].span; |
| endCol++; |
| } |
| LayoutUnit tableLayoutLogicalWidth = columnPos[endCol] - columnPos[startColumn] - table()->hBorderSpacing(); |
| cell->setCellLogicalWidth(tableLayoutLogicalWidth); |
| } |
| |
| if (RenderTableRow* rowRenderer = m_grid[r].rowRenderer) { |
| if (!rowRenderer->needsLayout() && paginated && view().frameView().layoutContext().layoutState()->pageLogicalHeightChanged()) |
| rowRenderer->setChildNeedsLayout(MarkOnlyThis); |
| |
| rowRenderer->layoutIfNeeded(); |
| } |
| } |
| clearNeedsLayout(); |
| } |
| |
| void RenderTableSection::distributeExtraLogicalHeightToPercentRows(LayoutUnit& extraLogicalHeight, int totalPercent) |
| { |
| if (!totalPercent) |
| return; |
| |
| unsigned totalRows = m_grid.size(); |
| LayoutUnit totalHeight = m_rowPos[totalRows] + extraLogicalHeight; |
| LayoutUnit totalLogicalHeightAdded; |
| totalPercent = std::min(totalPercent, 100); |
| LayoutUnit rowHeight = m_rowPos[1] - m_rowPos[0]; |
| for (unsigned r = 0; r < totalRows; ++r) { |
| if (totalPercent > 0 && m_grid[r].logicalHeight.isPercent()) { |
| LayoutUnit toAdd = std::min(extraLogicalHeight, LayoutUnit((totalHeight * m_grid[r].logicalHeight.percent() / 100) - rowHeight)); |
| // If toAdd is negative, then we don't want to shrink the row (this bug |
| // affected Outlook Web Access). |
| toAdd = std::max(0_lu, toAdd); |
| totalLogicalHeightAdded += toAdd; |
| extraLogicalHeight -= toAdd; |
| totalPercent -= m_grid[r].logicalHeight.percent(); |
| } |
| ASSERT(totalRows >= 1); |
| if (r < totalRows - 1) |
| rowHeight = m_rowPos[r + 2] - m_rowPos[r + 1]; |
| m_rowPos[r + 1] += totalLogicalHeightAdded; |
| } |
| } |
| |
| void RenderTableSection::distributeExtraLogicalHeightToAutoRows(LayoutUnit& extraLogicalHeight, unsigned autoRowsCount) |
| { |
| if (!autoRowsCount) |
| return; |
| |
| LayoutUnit totalLogicalHeightAdded; |
| for (unsigned r = 0; r < m_grid.size(); ++r) { |
| if (autoRowsCount > 0 && m_grid[r].logicalHeight.isAuto()) { |
| // Recomputing |extraLogicalHeightForRow| guarantees that we properly ditribute round |extraLogicalHeight|. |
| LayoutUnit extraLogicalHeightForRow = extraLogicalHeight / autoRowsCount; |
| totalLogicalHeightAdded += extraLogicalHeightForRow; |
| extraLogicalHeight -= extraLogicalHeightForRow; |
| --autoRowsCount; |
| } |
| m_rowPos[r + 1] += totalLogicalHeightAdded; |
| } |
| } |
| |
| void RenderTableSection::distributeRemainingExtraLogicalHeight(LayoutUnit& extraLogicalHeight) |
| { |
| unsigned totalRows = m_grid.size(); |
| |
| if (extraLogicalHeight <= 0 || !m_rowPos[totalRows]) |
| return; |
| |
| // FIXME: m_rowPos[totalRows] - m_rowPos[0] is the total rows' size. |
| LayoutUnit totalRowSize = m_rowPos[totalRows]; |
| LayoutUnit totalLogicalHeightAdded; |
| LayoutUnit previousRowPosition = m_rowPos[0]; |
| for (unsigned r = 0; r < totalRows; r++) { |
| // weight with the original height |
| totalLogicalHeightAdded += extraLogicalHeight * (m_rowPos[r + 1] - previousRowPosition) / totalRowSize; |
| previousRowPosition = m_rowPos[r + 1]; |
| m_rowPos[r + 1] += totalLogicalHeightAdded; |
| } |
| |
| extraLogicalHeight -= totalLogicalHeightAdded; |
| } |
| |
| LayoutUnit RenderTableSection::distributeExtraLogicalHeightToRows(LayoutUnit extraLogicalHeight) |
| { |
| if (!extraLogicalHeight) |
| return extraLogicalHeight; |
| |
| unsigned totalRows = m_grid.size(); |
| if (!totalRows) |
| return extraLogicalHeight; |
| |
| if (!m_rowPos[totalRows] && nextSibling()) |
| return extraLogicalHeight; |
| |
| unsigned autoRowsCount = 0; |
| int totalPercent = 0; |
| for (unsigned r = 0; r < totalRows; r++) { |
| if (m_grid[r].logicalHeight.isAuto()) |
| ++autoRowsCount; |
| else if (m_grid[r].logicalHeight.isPercent()) |
| totalPercent += m_grid[r].logicalHeight.percent(); |
| } |
| |
| LayoutUnit remainingExtraLogicalHeight = extraLogicalHeight; |
| distributeExtraLogicalHeightToPercentRows(remainingExtraLogicalHeight, totalPercent); |
| distributeExtraLogicalHeightToAutoRows(remainingExtraLogicalHeight, autoRowsCount); |
| distributeRemainingExtraLogicalHeight(remainingExtraLogicalHeight); |
| return extraLogicalHeight - remainingExtraLogicalHeight; |
| } |
| |
| static bool shouldFlexCellChild(const RenderTableCell& cell, const RenderBox& cellDescendant) |
| { |
| if (!cell.style().logicalHeight().isSpecified()) |
| return false; |
| if (cellDescendant.scrollsOverflowY()) |
| return true; |
| return cellDescendant.shouldTreatChildAsReplacedInTableCells(); |
| } |
| |
| void RenderTableSection::relayoutCellIfFlexed(RenderTableCell& cell, int rowIndex, int rowHeight) |
| { |
| // Force percent height children to lay themselves out again. |
| // This will cause these children to grow to fill the cell. |
| // FIXME: There is still more work to do here to fully match WinIE (should |
| // it become necessary to do so). In quirks mode, WinIE behaves like we |
| // do, but it will clip the cells that spill out of the table section. In |
| // strict mode, Mozilla and WinIE both regrow the table to accommodate the |
| // new height of the cell (thus letting the percentages cause growth one |
| // time only). We may also not be handling row-spanning cells correctly. |
| // |
| // Note also the oddity where replaced elements always flex, and yet blocks/tables do |
| // not necessarily flex. WinIE is crazy and inconsistent, and we can't hope to |
| // match the behavior perfectly, but we'll continue to refine it as we discover new |
| // bugs. :) |
| bool cellChildrenFlex = false; |
| bool flexAllChildren = cell.style().logicalHeight().isFixed() || (!table()->style().logicalHeight().isAuto() && rowHeight != cell.logicalHeight()); |
| |
| for (auto& renderer : childrenOfType<RenderBox>(cell)) { |
| if (renderer.style().logicalHeight().isPercentOrCalculated() |
| && (flexAllChildren || shouldFlexCellChild(cell, renderer)) |
| && (!is<RenderTable>(renderer) || downcast<RenderTable>(renderer).hasSections())) { |
| cellChildrenFlex = true; |
| break; |
| } |
| } |
| |
| if (!cellChildrenFlex) { |
| if (TrackedRendererListHashSet* percentHeightDescendants = cell.percentHeightDescendants()) { |
| for (auto* descendant : *percentHeightDescendants) { |
| if (flexAllChildren || shouldFlexCellChild(cell, *descendant)) { |
| cellChildrenFlex = true; |
| break; |
| } |
| } |
| } |
| } |
| |
| if (!cellChildrenFlex) |
| return; |
| |
| cell.setChildNeedsLayout(MarkOnlyThis); |
| // Alignment within a cell is based off the calculated |
| // height, which becomes irrelevant once the cell has |
| // been resized based off its percentage. |
| cell.setOverrideContentLogicalHeightFromRowHeight(rowHeight); |
| cell.layoutIfNeeded(); |
| |
| if (!cell.isBaselineAligned()) |
| return; |
| |
| // If the baseline moved, we may have to update the data for our row. Find out the new baseline. |
| LayoutUnit baseline = cell.cellBaselinePosition(); |
| if (baseline > cell.borderAndPaddingBefore()) |
| m_grid[rowIndex].baseline = std::max(m_grid[rowIndex].baseline, baseline); |
| } |
| |
| void RenderTableSection::layoutRows() |
| { |
| #ifndef NDEBUG |
| SetLayoutNeededForbiddenScope layoutForbiddenScope(this); |
| #endif |
| |
| ASSERT(!needsLayout()); |
| |
| unsigned totalRows = m_grid.size(); |
| |
| // Set the width of our section now. The rows will also be this width. |
| setLogicalWidth(table()->contentLogicalWidth()); |
| m_forceSlowPaintPathWithOverflowingCell = false; |
| |
| LayoutUnit vspacing = table()->vBorderSpacing(); |
| unsigned nEffCols = table()->numEffCols(); |
| |
| LayoutStateMaintainer statePusher(*this, locationOffset(), hasTransform() || style().isFlippedBlocksWritingMode()); |
| |
| for (unsigned r = 0; r < totalRows; r++) { |
| // Set the row's x/y position and width/height. |
| if (RenderTableRow* rowRenderer = m_grid[r].rowRenderer) { |
| // FIXME: the x() position of the row should be table()->hBorderSpacing() so that it can |
| // report the correct offsetLeft. However, that will require a lot of rebaselining of test results. |
| rowRenderer->setLocation(LayoutPoint(0_lu, m_rowPos[r])); |
| rowRenderer->setLogicalWidth(logicalWidth()); |
| rowRenderer->setLogicalHeight(m_rowPos[r + 1] - m_rowPos[r] - vspacing); |
| rowRenderer->updateLayerTransform(); |
| rowRenderer->clearOverflow(); |
| rowRenderer->addVisualEffectOverflow(); |
| } |
| |
| LayoutUnit rowHeightIncreaseForPagination; |
| |
| for (unsigned c = 0; c < nEffCols; c++) { |
| CellStruct& cs = cellAt(r, c); |
| RenderTableCell* cell = cs.primaryCell(); |
| |
| if (!cell || cs.inColSpan) |
| continue; |
| |
| int rowIndex = cell->rowIndex(); |
| LayoutUnit rHeight = m_rowPos[rowIndex + cell->rowSpan()] - m_rowPos[rowIndex] - vspacing; |
| |
| relayoutCellIfFlexed(*cell, r, rHeight); |
| |
| cell->computeIntrinsicPadding(rHeight); |
| |
| LayoutRect oldCellRect = cell->frameRect(); |
| |
| setLogicalPositionForCell(cell, c); |
| |
| auto* layoutState = view().frameView().layoutContext().layoutState(); |
| if (!cell->needsLayout() && layoutState->pageLogicalHeight() && layoutState->pageLogicalOffset(cell, cell->logicalTop()) != cell->pageLogicalOffset()) |
| cell->setChildNeedsLayout(MarkOnlyThis); |
| |
| cell->layoutIfNeeded(); |
| |
| // FIXME: Make pagination work with vertical tables. |
| if (layoutState->pageLogicalHeight() && cell->logicalHeight() != rHeight) { |
| // FIXME: Pagination might have made us change size. For now just shrink or grow the cell to fit without doing a relayout. |
| // We'll also do a basic increase of the row height to accommodate the cell if it's bigger, but this isn't quite right |
| // either. It's at least stable though and won't result in an infinite # of relayouts that may never stabilize. |
| if (cell->logicalHeight() > rHeight) |
| rowHeightIncreaseForPagination = std::max(rowHeightIncreaseForPagination, cell->logicalHeight() - rHeight); |
| cell->setLogicalHeight(rHeight); |
| } |
| |
| LayoutSize childOffset(cell->location() - oldCellRect.location()); |
| if (childOffset.width() || childOffset.height()) { |
| view().frameView().layoutContext().addLayoutDelta(childOffset); |
| |
| // If the child moved, we have to repaint it as well as any floating/positioned |
| // descendants. An exception is if we need a layout. In this case, we know we're going to |
| // repaint ourselves (and the child) anyway. |
| if (!table()->selfNeedsLayout() && cell->checkForRepaintDuringLayout()) |
| cell->repaintDuringLayoutIfMoved(oldCellRect); |
| } |
| } |
| if (rowHeightIncreaseForPagination) { |
| for (unsigned rowIndex = r + 1; rowIndex <= totalRows; rowIndex++) |
| m_rowPos[rowIndex] += rowHeightIncreaseForPagination; |
| for (unsigned c = 0; c < nEffCols; ++c) { |
| Vector<RenderTableCell*, 1>& cells = cellAt(r, c).cells; |
| for (size_t i = 0; i < cells.size(); ++i) |
| cells[i]->setLogicalHeight(cells[i]->logicalHeight() + rowHeightIncreaseForPagination); |
| } |
| } |
| } |
| |
| ASSERT(!needsLayout()); |
| |
| setLogicalHeight(m_rowPos[totalRows]); |
| |
| computeOverflowFromCells(totalRows, nEffCols); |
| } |
| |
| void RenderTableSection::computeOverflowFromCells() |
| { |
| unsigned totalRows = m_grid.size(); |
| unsigned nEffCols = table()->numEffCols(); |
| computeOverflowFromCells(totalRows, nEffCols); |
| } |
| |
| void RenderTableSection::computeOverflowFromCells(unsigned totalRows, unsigned nEffCols) |
| { |
| clearOverflow(); |
| m_overflowingCells.clear(); |
| unsigned totalCellsCount = nEffCols * totalRows; |
| unsigned maxAllowedOverflowingCellsCount = totalCellsCount < gMinTableSizeToUseFastPaintPathWithOverflowingCell ? 0 : gMaxAllowedOverflowingCellRatioForFastPaintPath * totalCellsCount; |
| |
| #ifndef NDEBUG |
| bool hasOverflowingCell = false; |
| #endif |
| // Now that our height has been determined, add in overflow from cells. |
| for (unsigned r = 0; r < totalRows; r++) { |
| for (unsigned c = 0; c < nEffCols; c++) { |
| CellStruct& cs = cellAt(r, c); |
| RenderTableCell* cell = cs.primaryCell(); |
| if (!cell || cs.inColSpan) |
| continue; |
| if (r < totalRows - 1 && cell == primaryCellAt(r + 1, c)) |
| continue; |
| addOverflowFromChild(cell); |
| #ifndef NDEBUG |
| hasOverflowingCell |= cell->hasVisualOverflow(); |
| #endif |
| if (cell->hasVisualOverflow() && !m_forceSlowPaintPathWithOverflowingCell) { |
| m_overflowingCells.add(cell); |
| if (m_overflowingCells.size() > maxAllowedOverflowingCellsCount) { |
| // We need to set m_forcesSlowPaintPath only if there is a least one overflowing cells as the hit testing code rely on this information. |
| m_forceSlowPaintPathWithOverflowingCell = true; |
| // The slow path does not make any use of the overflowing cells info, don't hold on to the memory. |
| m_overflowingCells.clear(); |
| } |
| } |
| } |
| } |
| ASSERT(hasOverflowingCell == this->hasOverflowingCell()); |
| } |
| |
| LayoutUnit RenderTableSection::calcOuterBorderBefore() const |
| { |
| unsigned totalCols = table()->numEffCols(); |
| if (!m_grid.size() || !totalCols) |
| return 0; |
| |
| LayoutUnit borderWidth; |
| |
| const BorderValue& sb = style().borderBefore(); |
| if (sb.style() == BorderStyle::Hidden) |
| return -1; |
| if (sb.style() > BorderStyle::Hidden) |
| borderWidth = sb.width(); |
| |
| const BorderValue& rb = firstRow()->style().borderBefore(); |
| if (rb.style() == BorderStyle::Hidden) |
| return -1; |
| if (rb.style() > BorderStyle::Hidden && rb.width() > borderWidth) |
| borderWidth = rb.width(); |
| |
| bool allHidden = true; |
| for (unsigned c = 0; c < totalCols; c++) { |
| const CellStruct& current = cellAt(0, c); |
| if (current.inColSpan || !current.hasCells()) |
| continue; |
| const BorderValue& cb = current.primaryCell()->style().borderBefore(); // FIXME: Make this work with perpendicular and flipped cells. |
| // FIXME: Don't repeat for the same col group |
| RenderTableCol* colGroup = table()->colElement(c); |
| if (colGroup) { |
| const BorderValue& gb = colGroup->style().borderBefore(); |
| if (gb.style() == BorderStyle::Hidden || cb.style() == BorderStyle::Hidden) |
| continue; |
| allHidden = false; |
| if (gb.style() > BorderStyle::Hidden && gb.width() > borderWidth) |
| borderWidth = gb.width(); |
| if (cb.style() > BorderStyle::Hidden && cb.width() > borderWidth) |
| borderWidth = cb.width(); |
| } else { |
| if (cb.style() == BorderStyle::Hidden) |
| continue; |
| allHidden = false; |
| if (cb.style() > BorderStyle::Hidden && cb.width() > borderWidth) |
| borderWidth = cb.width(); |
| } |
| } |
| if (allHidden) |
| return -1; |
| return CollapsedBorderValue::adjustedCollapsedBorderWidth(borderWidth, document().deviceScaleFactor(), false); |
| } |
| |
| LayoutUnit RenderTableSection::calcOuterBorderAfter() const |
| { |
| unsigned totalCols = table()->numEffCols(); |
| if (!m_grid.size() || !totalCols) |
| return 0; |
| |
| LayoutUnit borderWidth; |
| |
| const BorderValue& sb = style().borderAfter(); |
| if (sb.style() == BorderStyle::Hidden) |
| return -1; |
| if (sb.style() > BorderStyle::Hidden) |
| borderWidth = sb.width(); |
| |
| const BorderValue& rb = lastRow()->style().borderAfter(); |
| if (rb.style() == BorderStyle::Hidden) |
| return -1; |
| if (rb.style() > BorderStyle::Hidden && rb.width() > borderWidth) |
| borderWidth = rb.width(); |
| |
| bool allHidden = true; |
| for (unsigned c = 0; c < totalCols; c++) { |
| const CellStruct& current = cellAt(m_grid.size() - 1, c); |
| if (current.inColSpan || !current.hasCells()) |
| continue; |
| const BorderValue& cb = current.primaryCell()->style().borderAfter(); // FIXME: Make this work with perpendicular and flipped cells. |
| // FIXME: Don't repeat for the same col group |
| RenderTableCol* colGroup = table()->colElement(c); |
| if (colGroup) { |
| const BorderValue& gb = colGroup->style().borderAfter(); |
| if (gb.style() == BorderStyle::Hidden || cb.style() == BorderStyle::Hidden) |
| continue; |
| allHidden = false; |
| if (gb.style() > BorderStyle::Hidden && gb.width() > borderWidth) |
| borderWidth = gb.width(); |
| if (cb.style() > BorderStyle::Hidden && cb.width() > borderWidth) |
| borderWidth = cb.width(); |
| } else { |
| if (cb.style() == BorderStyle::Hidden) |
| continue; |
| allHidden = false; |
| if (cb.style() > BorderStyle::Hidden && cb.width() > borderWidth) |
| borderWidth = cb.width(); |
| } |
| } |
| if (allHidden) |
| return -1; |
| return CollapsedBorderValue::adjustedCollapsedBorderWidth(borderWidth, document().deviceScaleFactor(), true); |
| } |
| |
| LayoutUnit RenderTableSection::calcOuterBorderStart() const |
| { |
| unsigned totalCols = table()->numEffCols(); |
| if (!m_grid.size() || !totalCols) |
| return 0; |
| |
| LayoutUnit borderWidth; |
| |
| const BorderValue& sb = style().borderStart(); |
| if (sb.style() == BorderStyle::Hidden) |
| return -1; |
| if (sb.style() > BorderStyle::Hidden) |
| borderWidth = sb.width(); |
| |
| if (RenderTableCol* colGroup = table()->colElement(0)) { |
| const BorderValue& gb = colGroup->style().borderStart(); |
| if (gb.style() == BorderStyle::Hidden) |
| return -1; |
| if (gb.style() > BorderStyle::Hidden && gb.width() > borderWidth) |
| borderWidth = gb.width(); |
| } |
| |
| bool allHidden = true; |
| for (unsigned r = 0; r < m_grid.size(); r++) { |
| const CellStruct& current = cellAt(r, 0); |
| if (!current.hasCells()) |
| continue; |
| // FIXME: Don't repeat for the same cell |
| const BorderValue& cb = current.primaryCell()->style().borderStart(); // FIXME: Make this work with perpendicular and flipped cells. |
| const BorderValue& rb = current.primaryCell()->parent()->style().borderStart(); |
| if (cb.style() == BorderStyle::Hidden || rb.style() == BorderStyle::Hidden) |
| continue; |
| allHidden = false; |
| if (cb.style() > BorderStyle::Hidden && cb.width() > borderWidth) |
| borderWidth = cb.width(); |
| if (rb.style() > BorderStyle::Hidden && rb.width() > borderWidth) |
| borderWidth = rb.width(); |
| } |
| if (allHidden) |
| return -1; |
| return CollapsedBorderValue::adjustedCollapsedBorderWidth(borderWidth, document().deviceScaleFactor(), !table()->style().isLeftToRightDirection()); |
| } |
| |
| LayoutUnit RenderTableSection::calcOuterBorderEnd() const |
| { |
| unsigned totalCols = table()->numEffCols(); |
| if (!m_grid.size() || !totalCols) |
| return 0; |
| |
| LayoutUnit borderWidth; |
| |
| const BorderValue& sb = style().borderEnd(); |
| if (sb.style() == BorderStyle::Hidden) |
| return -1; |
| if (sb.style() > BorderStyle::Hidden) |
| borderWidth = sb.width(); |
| |
| if (RenderTableCol* colGroup = table()->colElement(totalCols - 1)) { |
| const BorderValue& gb = colGroup->style().borderEnd(); |
| if (gb.style() == BorderStyle::Hidden) |
| return -1; |
| if (gb.style() > BorderStyle::Hidden && gb.width() > borderWidth) |
| borderWidth = gb.width(); |
| } |
| |
| bool allHidden = true; |
| for (unsigned r = 0; r < m_grid.size(); r++) { |
| const CellStruct& current = cellAt(r, totalCols - 1); |
| if (!current.hasCells()) |
| continue; |
| // FIXME: Don't repeat for the same cell |
| const BorderValue& cb = current.primaryCell()->style().borderEnd(); // FIXME: Make this work with perpendicular and flipped cells. |
| const BorderValue& rb = current.primaryCell()->parent()->style().borderEnd(); |
| if (cb.style() == BorderStyle::Hidden || rb.style() == BorderStyle::Hidden) |
| continue; |
| allHidden = false; |
| if (cb.style() > BorderStyle::Hidden && cb.width() > borderWidth) |
| borderWidth = cb.width(); |
| if (rb.style() > BorderStyle::Hidden && rb.width() > borderWidth) |
| borderWidth = rb.width(); |
| } |
| if (allHidden) |
| return -1; |
| return CollapsedBorderValue::adjustedCollapsedBorderWidth(borderWidth, document().deviceScaleFactor(), table()->style().isLeftToRightDirection()); |
| } |
| |
| void RenderTableSection::recalcOuterBorder() |
| { |
| m_outerBorderBefore = calcOuterBorderBefore(); |
| m_outerBorderAfter = calcOuterBorderAfter(); |
| m_outerBorderStart = calcOuterBorderStart(); |
| m_outerBorderEnd = calcOuterBorderEnd(); |
| } |
| |
| Optional<int> RenderTableSection::firstLineBaseline() const |
| { |
| if (!m_grid.size()) |
| return Optional<int>(); |
| |
| int firstLineBaseline = m_grid[0].baseline; |
| if (firstLineBaseline) |
| return firstLineBaseline + roundToInt(m_rowPos[0]); |
| |
| Optional<int> result; |
| const Row& firstRow = m_grid[0].row; |
| for (size_t i = 0; i < firstRow.size(); ++i) { |
| const CellStruct& cs = firstRow.at(i); |
| const RenderTableCell* cell = cs.primaryCell(); |
| // Only cells with content have a baseline |
| if (cell && cell->contentLogicalHeight()) { |
| int candidate = roundToInt(cell->logicalTop() + cell->borderAndPaddingBefore() + cell->contentLogicalHeight()); |
| result = std::max(result.valueOr(candidate), candidate); |
| } |
| } |
| |
| return result; |
| } |
| |
| void RenderTableSection::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset) |
| { |
| ASSERT(!needsLayout()); |
| // avoid crashing on bugs that cause us to paint with dirty layout |
| if (needsLayout()) |
| return; |
| |
| unsigned totalRows = m_grid.size(); |
| unsigned totalCols = table()->columns().size(); |
| |
| if (!totalRows || !totalCols) |
| return; |
| |
| LayoutPoint adjustedPaintOffset = paintOffset + location(); |
| |
| PaintPhase phase = paintInfo.phase; |
| bool pushedClip = pushContentsClip(paintInfo, adjustedPaintOffset); |
| paintObject(paintInfo, adjustedPaintOffset); |
| if (pushedClip) |
| popContentsClip(paintInfo, phase, adjustedPaintOffset); |
| |
| if ((phase == PaintPhase::Outline || phase == PaintPhase::SelfOutline) && style().visibility() == Visibility::Visible) |
| paintOutline(paintInfo, LayoutRect(adjustedPaintOffset, size())); |
| } |
| |
| static inline bool compareCellPositions(RenderTableCell* elem1, RenderTableCell* elem2) |
| { |
| return elem1->rowIndex() < elem2->rowIndex(); |
| } |
| |
| // This comparison is used only when we have overflowing cells as we have an unsorted array to sort. We thus need |
| // to sort both on rows and columns to properly repaint. |
| static inline bool compareCellPositionsWithOverflowingCells(RenderTableCell* elem1, RenderTableCell* elem2) |
| { |
| if (elem1->rowIndex() != elem2->rowIndex()) |
| return elem1->rowIndex() < elem2->rowIndex(); |
| |
| return elem1->col() < elem2->col(); |
| } |
| |
| void RenderTableSection::paintCell(RenderTableCell* cell, PaintInfo& paintInfo, const LayoutPoint& paintOffset) |
| { |
| LayoutPoint cellPoint = flipForWritingModeForChild(cell, paintOffset); |
| PaintPhase paintPhase = paintInfo.phase; |
| RenderTableRow& row = downcast<RenderTableRow>(*cell->parent()); |
| |
| if (paintPhase == PaintPhase::BlockBackground || paintPhase == PaintPhase::ChildBlockBackground) { |
| // We need to handle painting a stack of backgrounds. This stack (from bottom to top) consists of |
| // the column group, column, row group, row, and then the cell. |
| RenderTableCol* column = table()->colElement(cell->col()); |
| RenderTableCol* columnGroup = column ? column->enclosingColumnGroup() : nullptr; |
| |
| // Column groups and columns first. |
| // FIXME: Columns and column groups do not currently support opacity, and they are being painted "too late" in |
| // the stack, since we have already opened a transparency layer (potentially) for the table row group. |
| // Note that we deliberately ignore whether or not the cell has a layer, since these backgrounds paint "behind" the |
| // cell. |
| cell->paintBackgroundsBehindCell(paintInfo, cellPoint, columnGroup); |
| cell->paintBackgroundsBehindCell(paintInfo, cellPoint, column); |
| |
| // Paint the row group next. |
| cell->paintBackgroundsBehindCell(paintInfo, cellPoint, this); |
| |
| // Paint the row next, but only if it doesn't have a layer. If a row has a layer, it will be responsible for |
| // painting the row background for the cell. |
| if (!row.hasSelfPaintingLayer()) |
| cell->paintBackgroundsBehindCell(paintInfo, cellPoint, &row); |
| } |
| if ((!cell->hasSelfPaintingLayer() && !row.hasSelfPaintingLayer())) |
| cell->paint(paintInfo, cellPoint); |
| } |
| |
| LayoutRect RenderTableSection::logicalRectForWritingModeAndDirection(const LayoutRect& rect) const |
| { |
| LayoutRect tableAlignedRect(rect); |
| |
| flipForWritingMode(tableAlignedRect); |
| |
| if (!style().isHorizontalWritingMode()) |
| tableAlignedRect = tableAlignedRect.transposedRect(); |
| |
| const Vector<LayoutUnit>& columnPos = table()->columnPositions(); |
| // FIXME: The table's direction should determine our row's direction, not the section's (see bug 96691). |
| if (!style().isLeftToRightDirection()) |
| tableAlignedRect.setX(columnPos[columnPos.size() - 1] - tableAlignedRect.maxX()); |
| |
| return tableAlignedRect; |
| } |
| |
| CellSpan RenderTableSection::dirtiedRows(const LayoutRect& damageRect) const |
| { |
| if (m_forceSlowPaintPathWithOverflowingCell) |
| return fullTableRowSpan(); |
| |
| CellSpan coveredRows = spannedRows(damageRect, IncludeAllIntersectingCells); |
| |
| // To repaint the border we might need to repaint first or last row even if they are not spanned themselves. |
| if (coveredRows.start >= m_rowPos.size() - 1 && m_rowPos[m_rowPos.size() - 1] + table()->outerBorderAfter() >= damageRect.y()) |
| --coveredRows.start; |
| |
| if (!coveredRows.end && m_rowPos[0] - table()->outerBorderBefore() <= damageRect.maxY()) |
| ++coveredRows.end; |
| |
| return coveredRows; |
| } |
| |
| CellSpan RenderTableSection::dirtiedColumns(const LayoutRect& damageRect) const |
| { |
| if (m_forceSlowPaintPathWithOverflowingCell) |
| return fullTableColumnSpan(); |
| |
| CellSpan coveredColumns = spannedColumns(damageRect, IncludeAllIntersectingCells); |
| |
| const Vector<LayoutUnit>& columnPos = table()->columnPositions(); |
| // To repaint the border we might need to repaint first or last column even if they are not spanned themselves. |
| if (coveredColumns.start >= columnPos.size() - 1 && columnPos[columnPos.size() - 1] + table()->outerBorderEnd() >= damageRect.x()) |
| --coveredColumns.start; |
| |
| if (!coveredColumns.end && columnPos[0] - table()->outerBorderStart() <= damageRect.maxX()) |
| ++coveredColumns.end; |
| |
| return coveredColumns; |
| } |
| |
| CellSpan RenderTableSection::spannedRows(const LayoutRect& flippedRect, ShouldIncludeAllIntersectingCells shouldIncludeAllIntersectionCells) const |
| { |
| // Find the first row that starts after rect top. |
| unsigned nextRow = std::upper_bound(m_rowPos.begin(), m_rowPos.end(), flippedRect.y()) - m_rowPos.begin(); |
| if (shouldIncludeAllIntersectionCells == IncludeAllIntersectingCells && nextRow && m_rowPos[nextRow - 1] == flippedRect.y()) |
| --nextRow; |
| |
| if (nextRow == m_rowPos.size()) |
| return CellSpan(m_rowPos.size() - 1, m_rowPos.size() - 1); // After all rows. |
| |
| unsigned startRow = nextRow > 0 ? nextRow - 1 : 0; |
| |
| // Find the first row that starts after rect bottom. |
| unsigned endRow; |
| if (m_rowPos[nextRow] >= flippedRect.maxY()) |
| endRow = nextRow; |
| else { |
| endRow = std::upper_bound(m_rowPos.begin() + static_cast<int32_t>(nextRow), m_rowPos.end(), flippedRect.maxY()) - m_rowPos.begin(); |
| if (endRow == m_rowPos.size()) |
| endRow = m_rowPos.size() - 1; |
| } |
| |
| return CellSpan(startRow, endRow); |
| } |
| |
| CellSpan RenderTableSection::spannedColumns(const LayoutRect& flippedRect, ShouldIncludeAllIntersectingCells shouldIncludeAllIntersectionCells) const |
| { |
| const Vector<LayoutUnit>& columnPos = table()->columnPositions(); |
| |
| // Find the first column that starts after rect left. |
| // lower_bound doesn't handle the edge between two cells properly as it would wrongly return the |
| // cell on the logical top/left. |
| // upper_bound on the other hand properly returns the cell on the logical bottom/right, which also |
| // matches the behavior of other browsers. |
| unsigned nextColumn = std::upper_bound(columnPos.begin(), columnPos.end(), flippedRect.x()) - columnPos.begin(); |
| if (shouldIncludeAllIntersectionCells == IncludeAllIntersectingCells && nextColumn && columnPos[nextColumn - 1] == flippedRect.x()) |
| --nextColumn; |
| |
| if (nextColumn == columnPos.size()) |
| return CellSpan(columnPos.size() - 1, columnPos.size() - 1); // After all columns. |
| |
| unsigned startColumn = nextColumn > 0 ? nextColumn - 1 : 0; |
| |
| // Find the first column that starts after rect right. |
| unsigned endColumn; |
| if (columnPos[nextColumn] >= flippedRect.maxX()) |
| endColumn = nextColumn; |
| else { |
| endColumn = std::upper_bound(columnPos.begin() + static_cast<int32_t>(nextColumn), columnPos.end(), flippedRect.maxX()) - columnPos.begin(); |
| if (endColumn == columnPos.size()) |
| endColumn = columnPos.size() - 1; |
| } |
| |
| return CellSpan(startColumn, endColumn); |
| } |
| |
| void RenderTableSection::paintRowGroupBorder(const PaintInfo& paintInfo, bool antialias, LayoutRect rect, BoxSide side, CSSPropertyID borderColor, BorderStyle borderStyle, BorderStyle tableBorderStyle) |
| { |
| if (tableBorderStyle == BorderStyle::Hidden) |
| return; |
| rect.intersect(paintInfo.rect); |
| if (rect.isEmpty()) |
| return; |
| drawLineForBoxSide(paintInfo.context(), rect, side, style().visitedDependentColorWithColorFilter(borderColor), borderStyle, 0, 0, antialias); |
| } |
| |
| LayoutUnit RenderTableSection::offsetLeftForRowGroupBorder(RenderTableCell* cell, const LayoutRect& rowGroupRect, unsigned row) |
| { |
| if (style().isHorizontalWritingMode()) { |
| if (style().isLeftToRightDirection()) |
| return cell ? cell->x() + cell->width() : 0_lu; |
| return -outerBorderLeft(&style()); |
| } |
| bool isLastRow = row + 1 == m_grid.size(); |
| return rowGroupRect.width() - m_rowPos[row + 1] + (isLastRow ? -outerBorderLeft(&style()) : 0_lu); |
| } |
| |
| LayoutUnit RenderTableSection::offsetTopForRowGroupBorder(RenderTableCell* cell, BoxSide borderSide, unsigned row) |
| { |
| bool isLastRow = row + 1 == m_grid.size(); |
| if (style().isHorizontalWritingMode()) |
| return m_rowPos[row] + (!row && borderSide == BSRight ? -outerBorderTop(&style()) : isLastRow && borderSide == BSLeft ? outerBorderTop(&style()) : 0_lu); |
| if (style().isLeftToRightDirection()) |
| return (cell ? cell->y() + cell->height() : 0_lu) + (borderSide == BSLeft ? outerBorderTop(&style()) : 0_lu); |
| return borderSide == BSRight ? -outerBorderTop(&style()) : 0_lu; |
| } |
| |
| LayoutUnit RenderTableSection::verticalRowGroupBorderHeight(RenderTableCell* cell, const LayoutRect& rowGroupRect, unsigned row) |
| { |
| bool isLastRow = row + 1 == m_grid.size(); |
| if (style().isHorizontalWritingMode()) |
| return m_rowPos[row + 1] - m_rowPos[row] + (!row ? outerBorderTop(&style()) : isLastRow ? outerBorderBottom(&style()) : 0_lu); |
| if (style().isLeftToRightDirection()) |
| return rowGroupRect.height() - (cell ? cell->y() + cell->height() : 0_lu) + outerBorderBottom(&style()); |
| return cell ? rowGroupRect.height() - (cell->y() - cell->height()) : 0_lu; |
| } |
| |
| LayoutUnit RenderTableSection::horizontalRowGroupBorderWidth(RenderTableCell* cell, const LayoutRect& rowGroupRect, unsigned row, unsigned column) |
| { |
| if (style().isHorizontalWritingMode()) { |
| if (style().isLeftToRightDirection()) |
| return rowGroupRect.width() - (cell ? cell->x() + cell->width() : 0_lu) + (!column ? outerBorderLeft(&style()) : column == table()->numEffCols() ? outerBorderRight(&style()) : 0_lu); |
| return cell ? rowGroupRect.width() - (cell->x() - cell->width()) : 0_lu; |
| } |
| bool isLastRow = row + 1 == m_grid.size(); |
| return m_rowPos[row + 1] - m_rowPos[row] + (isLastRow ? outerBorderLeft(&style()) : !row ? outerBorderRight(&style()) : 0_lu); |
| } |
| |
| void RenderTableSection::paintRowGroupBorderIfRequired(const PaintInfo& paintInfo, const LayoutPoint& paintOffset, unsigned row, unsigned column, BoxSide borderSide, RenderTableCell* cell) |
| { |
| if (table()->currentBorderValue()->precedence() > BorderPrecedence::RowGroup) |
| return; |
| if (paintInfo.context().paintingDisabled()) |
| return; |
| |
| const RenderStyle& style = this->style(); |
| bool antialias = shouldAntialiasLines(paintInfo.context()); |
| LayoutRect rowGroupRect = LayoutRect(paintOffset, size()); |
| rowGroupRect.moveBy(-LayoutPoint(outerBorderLeft(&style), (borderSide == BSRight) ? 0_lu : outerBorderTop(&style))); |
| |
| switch (borderSide) { |
| case BSTop: |
| paintRowGroupBorder(paintInfo, antialias, LayoutRect(paintOffset.x() + offsetLeftForRowGroupBorder(cell, rowGroupRect, row), rowGroupRect.y(), |
| horizontalRowGroupBorderWidth(cell, rowGroupRect, row, column), LayoutUnit(style.borderTop().width())), BSTop, CSSPropertyBorderTopColor, style.borderTopStyle(), table()->style().borderTopStyle()); |
| break; |
| case BSBottom: |
| paintRowGroupBorder(paintInfo, antialias, LayoutRect(paintOffset.x() + offsetLeftForRowGroupBorder(cell, rowGroupRect, row), rowGroupRect.y() + rowGroupRect.height(), |
| horizontalRowGroupBorderWidth(cell, rowGroupRect, row, column), LayoutUnit(style.borderBottom().width())), BSBottom, CSSPropertyBorderBottomColor, style.borderBottomStyle(), table()->style().borderBottomStyle()); |
| break; |
| case BSLeft: |
| paintRowGroupBorder(paintInfo, antialias, LayoutRect(rowGroupRect.x(), rowGroupRect.y() + offsetTopForRowGroupBorder(cell, borderSide, row), LayoutUnit(style.borderLeft().width()), |
| verticalRowGroupBorderHeight(cell, rowGroupRect, row)), BSLeft, CSSPropertyBorderLeftColor, style.borderLeftStyle(), table()->style().borderLeftStyle()); |
| break; |
| case BSRight: |
| paintRowGroupBorder(paintInfo, antialias, LayoutRect(rowGroupRect.x() + rowGroupRect.width(), rowGroupRect.y() + offsetTopForRowGroupBorder(cell, borderSide, row), LayoutUnit(style.borderRight().width()), |
| verticalRowGroupBorderHeight(cell, rowGroupRect, row)), BSRight, CSSPropertyBorderRightColor, style.borderRightStyle(), table()->style().borderRightStyle()); |
| break; |
| default: |
| break; |
| } |
| |
| } |
| |
| static BoxSide physicalBorderForDirection(const RenderStyle* styleForCellFlow, CollapsedBorderSide side) |
| { |
| |
| switch (side) { |
| case CBSStart: |
| if (styleForCellFlow->isHorizontalWritingMode()) |
| return styleForCellFlow->isLeftToRightDirection() ? BSLeft : BSRight; |
| return styleForCellFlow->isLeftToRightDirection() ? BSTop : BSBottom; |
| case CBSEnd: |
| if (styleForCellFlow->isHorizontalWritingMode()) |
| return styleForCellFlow->isLeftToRightDirection() ? BSRight : BSLeft; |
| return styleForCellFlow->isLeftToRightDirection() ? BSBottom : BSTop; |
| case CBSBefore: |
| if (styleForCellFlow->isHorizontalWritingMode()) |
| return BSTop; |
| return styleForCellFlow->isLeftToRightDirection() ? BSRight : BSLeft; |
| case CBSAfter: |
| if (styleForCellFlow->isHorizontalWritingMode()) |
| return BSBottom; |
| return styleForCellFlow->isLeftToRightDirection() ? BSLeft : BSRight; |
| default: |
| ASSERT_NOT_REACHED(); |
| return BSLeft; |
| } |
| } |
| |
| void RenderTableSection::paintObject(PaintInfo& paintInfo, const LayoutPoint& paintOffset) |
| { |
| LayoutRect localRepaintRect = paintInfo.rect; |
| localRepaintRect.moveBy(-paintOffset); |
| |
| LayoutRect tableAlignedRect = logicalRectForWritingModeAndDirection(localRepaintRect); |
| |
| CellSpan dirtiedRows = this->dirtiedRows(tableAlignedRect); |
| CellSpan dirtiedColumns = this->dirtiedColumns(tableAlignedRect); |
| |
| if (dirtiedColumns.start < dirtiedColumns.end) { |
| if (!m_hasMultipleCellLevels && !m_overflowingCells.size()) { |
| if (paintInfo.phase == PaintPhase::CollapsedTableBorders) { |
| // Collapsed borders are painted from the bottom right to the top left so that precedence |
| // due to cell position is respected. We need to paint one row beyond the topmost dirtied |
| // row to calculate its collapsed border value. |
| unsigned startRow = dirtiedRows.start ? dirtiedRows.start - 1 : 0; |
| for (unsigned r = dirtiedRows.end; r > startRow; r--) { |
| unsigned row = r - 1; |
| bool shouldPaintRowGroupBorder = false; |
| for (unsigned c = dirtiedColumns.end; c > dirtiedColumns.start; c--) { |
| unsigned col = c - 1; |
| CellStruct& current = cellAt(row, col); |
| RenderTableCell* cell = current.primaryCell(); |
| if (!cell) { |
| if (!c) |
| paintRowGroupBorderIfRequired(paintInfo, paintOffset, row, col, physicalBorderForDirection(&style(), CBSStart)); |
| else if (c == table()->numEffCols()) |
| paintRowGroupBorderIfRequired(paintInfo, paintOffset, row, col, physicalBorderForDirection(&style(), CBSEnd)); |
| shouldPaintRowGroupBorder = true; |
| continue; |
| } |
| if ((row > dirtiedRows.start && primaryCellAt(row - 1, col) == cell) || (col > dirtiedColumns.start && primaryCellAt(row, col - 1) == cell)) |
| continue; |
| |
| // If we had a run of null cells paint their corresponding section of the row group's border if necessary. Note that |
| // this will only happen once within a row as the null cells will always be clustered together on one end of the row. |
| if (shouldPaintRowGroupBorder) { |
| if (r == m_grid.size()) |
| paintRowGroupBorderIfRequired(paintInfo, paintOffset, row, col, physicalBorderForDirection(&style(), CBSAfter), cell); |
| else if (!row && !table()->sectionAbove(this)) |
| paintRowGroupBorderIfRequired(paintInfo, paintOffset, row, col, physicalBorderForDirection(&style(), CBSBefore), cell); |
| shouldPaintRowGroupBorder = false; |
| } |
| |
| LayoutPoint cellPoint = flipForWritingModeForChild(cell, paintOffset); |
| cell->paintCollapsedBorders(paintInfo, cellPoint); |
| } |
| } |
| } else { |
| // Draw the dirty cells in the order that they appear. |
| for (unsigned r = dirtiedRows.start; r < dirtiedRows.end; r++) { |
| RenderTableRow* row = m_grid[r].rowRenderer; |
| if (row && !row->hasSelfPaintingLayer()) |
| row->paintOutlineForRowIfNeeded(paintInfo, paintOffset); |
| for (unsigned c = dirtiedColumns.start; c < dirtiedColumns.end; c++) { |
| CellStruct& current = cellAt(r, c); |
| RenderTableCell* cell = current.primaryCell(); |
| if (!cell || (r > dirtiedRows.start && primaryCellAt(r - 1, c) == cell) || (c > dirtiedColumns.start && primaryCellAt(r, c - 1) == cell)) |
| continue; |
| paintCell(cell, paintInfo, paintOffset); |
| } |
| } |
| } |
| } else { |
| // The overflowing cells should be scarce to avoid adding a lot of cells to the HashSet. |
| #ifndef NDEBUG |
| unsigned totalRows = m_grid.size(); |
| unsigned totalCols = table()->columns().size(); |
| ASSERT(m_overflowingCells.size() < totalRows * totalCols * gMaxAllowedOverflowingCellRatioForFastPaintPath); |
| #endif |
| |
| // To make sure we properly repaint the section, we repaint all the overflowing cells that we collected. |
| auto cells = copyToVector(m_overflowingCells); |
| |
| HashSet<RenderTableCell*> spanningCells; |
| |
| for (unsigned r = dirtiedRows.start; r < dirtiedRows.end; r++) { |
| RenderTableRow* row = m_grid[r].rowRenderer; |
| if (row && !row->hasSelfPaintingLayer()) |
| row->paintOutlineForRowIfNeeded(paintInfo, paintOffset); |
| for (unsigned c = dirtiedColumns.start; c < dirtiedColumns.end; c++) { |
| CellStruct& current = cellAt(r, c); |
| if (!current.hasCells()) |
| continue; |
| for (unsigned i = 0; i < current.cells.size(); ++i) { |
| if (m_overflowingCells.contains(current.cells[i])) |
| continue; |
| |
| if (current.cells[i]->rowSpan() > 1 || current.cells[i]->colSpan() > 1) { |
| if (!spanningCells.add(current.cells[i]).isNewEntry) |
| continue; |
| } |
| |
| cells.append(current.cells[i]); |
| } |
| } |
| } |
| |
| // Sort the dirty cells by paint order. |
| if (!m_overflowingCells.size()) |
| std::stable_sort(cells.begin(), cells.end(), compareCellPositions); |
| else |
| std::sort(cells.begin(), cells.end(), compareCellPositionsWithOverflowingCells); |
| |
| if (paintInfo.phase == PaintPhase::CollapsedTableBorders) { |
| for (unsigned i = cells.size(); i > 0; --i) { |
| LayoutPoint cellPoint = flipForWritingModeForChild(cells[i - 1], paintOffset); |
| cells[i - 1]->paintCollapsedBorders(paintInfo, cellPoint); |
| } |
| } else { |
| for (unsigned i = 0; i < cells.size(); ++i) |
| paintCell(cells[i], paintInfo, paintOffset); |
| } |
| } |
| } |
| } |
| |
| void RenderTableSection::imageChanged(WrappedImagePtr, const IntRect*) |
| { |
| // FIXME: Examine cells and repaint only the rect the image paints in. |
| repaint(); |
| } |
| |
| void RenderTableSection::recalcCells() |
| { |
| ASSERT(m_needsCellRecalc); |
| // We reset the flag here to ensure that addCell() works. This is safe to do because we clear the grid |
| // and update its dimensions to be consistent with the table's column representation before we rebuild |
| // the grid using addCell(). |
| m_needsCellRecalc = false; |
| |
| m_cCol = 0; |
| m_cRow = 0; |
| m_grid.clear(); |
| |
| for (RenderTableRow* row = firstRow(); row; row = row->nextRow()) { |
| unsigned insertionRow = m_cRow; |
| m_cRow++; |
| m_cCol = 0; |
| ensureRows(m_cRow); |
| |
| m_grid[insertionRow].rowRenderer = row; |
| row->setRowIndex(insertionRow); |
| setRowLogicalHeightToRowStyleLogicalHeightIfNotRelative(m_grid[insertionRow]); |
| |
| for (RenderTableCell* cell = row->firstCell(); cell; cell = cell->nextCell()) |
| addCell(cell, row); |
| } |
| |
| m_grid.shrinkToFit(); |
| setNeedsLayout(); |
| } |
| |
| void RenderTableSection::removeRedundantColumns() |
| { |
| auto maximumNumberOfColumns = table()->numEffCols(); |
| for (auto& rowItem : m_grid) { |
| if (rowItem.row.size() <= maximumNumberOfColumns) |
| continue; |
| rowItem.row.resize(maximumNumberOfColumns); |
| } |
| } |
| |
| // FIXME: This function could be made O(1) in certain cases (like for the non-most-constrainive cells' case). |
| void RenderTableSection::rowLogicalHeightChanged(unsigned rowIndex) |
| { |
| if (needsCellRecalc()) |
| return; |
| |
| setRowLogicalHeightToRowStyleLogicalHeightIfNotRelative(m_grid[rowIndex]); |
| |
| for (RenderTableCell* cell = m_grid[rowIndex].rowRenderer->firstCell(); cell; cell = cell->nextCell()) |
| updateLogicalHeightForCell(m_grid[rowIndex], cell); |
| } |
| |
| void RenderTableSection::setNeedsCellRecalc() |
| { |
| m_needsCellRecalc = true; |
| |
| // Clear the grid now to ensure that we don't hold onto any stale pointers (e.g. a cell renderer that is being removed). |
| m_grid.clear(); |
| |
| if (RenderTable* t = table()) |
| t->setNeedsSectionRecalc(); |
| } |
| |
| unsigned RenderTableSection::numColumns() const |
| { |
| ASSERT(!m_needsCellRecalc); |
| unsigned result = 0; |
| |
| for (unsigned r = 0; r < m_grid.size(); ++r) { |
| for (unsigned c = result; c < table()->numEffCols(); ++c) { |
| const CellStruct& cell = cellAt(r, c); |
| if (cell.hasCells() || cell.inColSpan) |
| result = c; |
| } |
| } |
| |
| return result + 1; |
| } |
| |
| const BorderValue& RenderTableSection::borderAdjoiningStartCell(const RenderTableCell& cell) const |
| { |
| ASSERT(cell.isFirstOrLastCellInRow()); |
| return isDirectionSame(this, &cell) ? style().borderStart() : style().borderEnd(); |
| } |
| |
| const BorderValue& RenderTableSection::borderAdjoiningEndCell(const RenderTableCell& cell) const |
| { |
| ASSERT(cell.isFirstOrLastCellInRow()); |
| return isDirectionSame(this, &cell) ? style().borderEnd() : style().borderStart(); |
| } |
| |
| const RenderTableCell* RenderTableSection::firstRowCellAdjoiningTableStart() const |
| { |
| unsigned adjoiningStartCellColumnIndex = isDirectionSame(this, table()) ? 0 : table()->lastColumnIndex(); |
| return cellAt(0, adjoiningStartCellColumnIndex).primaryCell(); |
| } |
| |
| const RenderTableCell* RenderTableSection::firstRowCellAdjoiningTableEnd() const |
| { |
| unsigned adjoiningEndCellColumnIndex = isDirectionSame(this, table()) ? table()->lastColumnIndex() : 0; |
| return cellAt(0, adjoiningEndCellColumnIndex).primaryCell(); |
| } |
| |
| void RenderTableSection::appendColumn(unsigned pos) |
| { |
| ASSERT(!m_needsCellRecalc); |
| |
| for (unsigned row = 0; row < m_grid.size(); ++row) |
| m_grid[row].row.resize(pos + 1); |
| } |
| |
| void RenderTableSection::splitColumn(unsigned pos, unsigned first) |
| { |
| ASSERT(!m_needsCellRecalc); |
| |
| if (m_cCol > pos) |
| m_cCol++; |
| for (unsigned row = 0; row < m_grid.size(); ++row) { |
| Row& r = m_grid[row].row; |
| r.insert(pos + 1, CellStruct()); |
| if (r[pos].hasCells()) { |
| r[pos + 1].cells.appendVector(r[pos].cells); |
| RenderTableCell* cell = r[pos].primaryCell(); |
| ASSERT(cell); |
| ASSERT(cell->colSpan() >= (r[pos].inColSpan ? 1u : 0)); |
| unsigned colleft = cell->colSpan() - r[pos].inColSpan; |
| if (first > colleft) |
| r[pos + 1].inColSpan = 0; |
| else |
| r[pos + 1].inColSpan = first + r[pos].inColSpan; |
| } else { |
| r[pos + 1].inColSpan = 0; |
| } |
| } |
| } |
| |
| // Hit Testing |
| bool RenderTableSection::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction action) |
| { |
| // If we have no children then we have nothing to do. |
| if (!firstRow()) |
| return false; |
| |
| // Table sections cannot ever be hit tested. Effectively they do not exist. |
| // Just forward to our children always. |
| LayoutPoint adjustedLocation = accumulatedOffset + location(); |
| |
| if (hasOverflowClip() && !locationInContainer.intersects(overflowClipRect(adjustedLocation, nullptr))) |
| return false; |
| |
| if (hasOverflowingCell()) { |
| for (RenderTableRow* row = lastRow(); row; row = row->previousRow()) { |
| // FIXME: We have to skip over inline flows, since they can show up inside table rows |
| // at the moment (a demoted inline <form> for example). If we ever implement a |
| // table-specific hit-test method (which we should do for performance reasons anyway), |
| // then we can remove this check. |
| if (!row->hasSelfPaintingLayer()) { |
| LayoutPoint childPoint = flipForWritingModeForChild(row, adjustedLocation); |
| if (row->nodeAtPoint(request, result, locationInContainer, childPoint, action)) { |
| updateHitTestResult(result, toLayoutPoint(locationInContainer.point() - childPoint)); |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| recalcCellsIfNeeded(); |
| |
| LayoutRect hitTestRect = locationInContainer.boundingBox(); |
| hitTestRect.moveBy(-adjustedLocation); |
| |
| LayoutRect tableAlignedRect = logicalRectForWritingModeAndDirection(hitTestRect); |
| CellSpan rowSpan = spannedRows(tableAlignedRect, DoNotIncludeAllIntersectingCells); |
| CellSpan columnSpan = spannedColumns(tableAlignedRect, DoNotIncludeAllIntersectingCells); |
| |
| // Now iterate over the spanned rows and columns. |
| for (unsigned hitRow = rowSpan.start; hitRow < rowSpan.end; ++hitRow) { |
| for (unsigned hitColumn = columnSpan.start; hitColumn < columnSpan.end; ++hitColumn) { |
| CellStruct& current = cellAt(hitRow, hitColumn); |
| |
| // If the cell is empty, there's nothing to do |
| if (!current.hasCells()) |
| continue; |
| |
| for (unsigned i = current.cells.size() ; i; ) { |
| --i; |
| RenderTableCell* cell = current.cells[i]; |
| LayoutPoint cellPoint = flipForWritingModeForChild(cell, adjustedLocation); |
| if (static_cast<RenderObject*>(cell)->nodeAtPoint(request, result, locationInContainer, cellPoint, action)) { |
| updateHitTestResult(result, locationInContainer.point() - toLayoutSize(cellPoint)); |
| return true; |
| } |
| } |
| if (!request.resultIsElementList()) |
| break; |
| } |
| if (!request.resultIsElementList()) |
| break; |
| } |
| |
| return false; |
| } |
| |
| void RenderTableSection::clearCachedCollapsedBorders() |
| { |
| if (!table()->collapseBorders()) |
| return; |
| m_cellsCollapsedBorders.clear(); |
| } |
| |
| void RenderTableSection::removeCachedCollapsedBorders(const RenderTableCell& cell) |
| { |
| if (!table()->collapseBorders()) |
| return; |
| |
| for (int side = CBSBefore; side <= CBSEnd; ++side) |
| m_cellsCollapsedBorders.remove(std::make_pair(&cell, side)); |
| } |
| |
| void RenderTableSection::setCachedCollapsedBorder(const RenderTableCell& cell, CollapsedBorderSide side, CollapsedBorderValue border) |
| { |
| ASSERT(table()->collapseBorders()); |
| ASSERT(border.width()); |
| m_cellsCollapsedBorders.set(std::make_pair(&cell, side), border); |
| } |
| |
| CollapsedBorderValue RenderTableSection::cachedCollapsedBorder(const RenderTableCell& cell, CollapsedBorderSide side) |
| { |
| ASSERT(table()->collapseBorders() && table()->collapsedBordersAreValid()); |
| auto it = m_cellsCollapsedBorders.find(std::make_pair(&cell, side)); |
| // Only non-empty collapsed borders are in the hashmap. |
| if (it == m_cellsCollapsedBorders.end()) |
| return CollapsedBorderValue(BorderValue(), Color(), BorderPrecedence::Cell); |
| return it->value; |
| } |
| |
| RenderPtr<RenderTableSection> RenderTableSection::createTableSectionWithStyle(Document& document, const RenderStyle& style) |
| { |
| auto section = createRenderer<RenderTableSection>(document, RenderStyle::createAnonymousStyleWithDisplay(style, DisplayType::TableRowGroup)); |
| section->initializeStyle(); |
| return section; |
| } |
| |
| RenderPtr<RenderTableSection> RenderTableSection::createAnonymousWithParentRenderer(const RenderTable& parent) |
| { |
| return RenderTableSection::createTableSectionWithStyle(parent.document(), parent.style()); |
| } |
| |
| void RenderTableSection::setLogicalPositionForCell(RenderTableCell* cell, unsigned effectiveColumn) const |
| { |
| LayoutPoint oldCellLocation = cell->location(); |
| |
| LayoutPoint cellLocation(0_lu, m_rowPos[cell->rowIndex()]); |
| LayoutUnit horizontalBorderSpacing = table()->hBorderSpacing(); |
| |
| // FIXME: The table's direction should determine our row's direction, not the section's (see bug 96691). |
| if (!style().isLeftToRightDirection()) |
| cellLocation.setX(table()->columnPositions()[table()->numEffCols()] - table()->columnPositions()[table()->colToEffCol(cell->col() + cell->colSpan())] + horizontalBorderSpacing); |
| else |
| cellLocation.setX(table()->columnPositions()[effectiveColumn] + horizontalBorderSpacing); |
| |
| cell->setLogicalLocation(cellLocation); |
| view().frameView().layoutContext().addLayoutDelta(oldCellLocation - cell->location()); |
| } |
| |
| } // namespace WebCore |
