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Diffstat (limited to '')
| -rw-r--r-- | layout/tables/nsTableRowFrame.cpp | 1424 |
1 files changed, 1424 insertions, 0 deletions
diff --git a/layout/tables/nsTableRowFrame.cpp b/layout/tables/nsTableRowFrame.cpp new file mode 100644 index 0000000000..d61882a1de --- /dev/null +++ b/layout/tables/nsTableRowFrame.cpp @@ -0,0 +1,1424 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "nsTableRowFrame.h" + +#include "mozilla/Maybe.h" +#include "mozilla/PresShell.h" +#include "nsTableRowGroupFrame.h" +#include "nsPresContext.h" +#include "mozilla/ComputedStyle.h" +#include "mozilla/StaticPrefs_layout.h" +#include "nsStyleConsts.h" +#include "nsGkAtoms.h" +#include "nsIContent.h" +#include "nsIFrame.h" +#include "nsIFrameInlines.h" +#include "nsTableFrame.h" +#include "nsTableCellFrame.h" +#include "nsCSSRendering.h" +#include "nsHTMLParts.h" +#include "nsTableColGroupFrame.h" +#include "nsTableColFrame.h" +#include "nsCOMPtr.h" +#include "nsDisplayList.h" +#include "nsIFrameInlines.h" +#include <algorithm> + +#ifdef ACCESSIBILITY +# include "nsAccessibilityService.h" +#endif + +using namespace mozilla; + +namespace mozilla { + +struct TableCellReflowInput : public ReflowInput { + TableCellReflowInput(nsPresContext* aPresContext, + const ReflowInput& aParentReflowInput, nsIFrame* aFrame, + const LogicalSize& aAvailableSpace, + ReflowInput::InitFlags aFlags = {}) + : ReflowInput(aPresContext, aParentReflowInput, aFrame, aAvailableSpace, + Nothing(), aFlags) {} + + void FixUp(const LogicalSize& aAvailSpace); +}; + +} // namespace mozilla + +void TableCellReflowInput::FixUp(const LogicalSize& aAvailSpace) { + // fix the mComputed values during a pass 2 reflow since the cell can be a + // percentage base + NS_WARNING_ASSERTION( + NS_UNCONSTRAINEDSIZE != aAvailSpace.ISize(mWritingMode), + "have unconstrained inline-size; this should only result from very large " + "sizes, not attempts at intrinsic inline size calculation"); + if (NS_UNCONSTRAINEDSIZE != ComputedISize()) { + nscoord computedISize = + aAvailSpace.ISize(mWritingMode) - + ComputedLogicalBorderPadding(mWritingMode).IStartEnd(mWritingMode); + computedISize = std::max(0, computedISize); + SetComputedISize(computedISize); + } + if (NS_UNCONSTRAINEDSIZE != ComputedBSize() && + NS_UNCONSTRAINEDSIZE != aAvailSpace.BSize(mWritingMode)) { + nscoord computedBSize = + aAvailSpace.BSize(mWritingMode) - + ComputedLogicalBorderPadding(mWritingMode).BStartEnd(mWritingMode); + computedBSize = std::max(0, computedBSize); + SetComputedBSize(computedBSize); + } +} + +void nsTableRowFrame::InitChildReflowInput(nsPresContext& aPresContext, + const LogicalSize& aAvailSize, + bool aBorderCollapse, + TableCellReflowInput& aReflowInput) { + Maybe<LogicalMargin> collapseBorder; + if (aBorderCollapse) { + // we only reflow cells, so don't need to check frame type + nsBCTableCellFrame* bcCellFrame = (nsBCTableCellFrame*)aReflowInput.mFrame; + if (bcCellFrame) { + collapseBorder.emplace( + bcCellFrame->GetBorderWidth(aReflowInput.GetWritingMode())); + } + } + aReflowInput.Init(&aPresContext, Nothing(), collapseBorder); + aReflowInput.FixUp(aAvailSize); +} + +void nsTableRowFrame::SetFixedBSize(nscoord aValue) { + nscoord bsize = std::max(0, aValue); + if (HasFixedBSize()) { + if (bsize > mStyleFixedBSize) { + mStyleFixedBSize = bsize; + } + } else { + mStyleFixedBSize = bsize; + if (bsize > 0) { + SetHasFixedBSize(true); + } + } +} + +void nsTableRowFrame::SetPctBSize(float aPctValue, bool aForce) { + nscoord bsize = std::max(0, NSToCoordRound(aPctValue * 100.0f)); + if (HasPctBSize()) { + if ((bsize > mStylePctBSize) || aForce) { + mStylePctBSize = bsize; + } + } else { + mStylePctBSize = bsize; + if (bsize > 0) { + SetHasPctBSize(true); + } + } +} + +/* ----------- nsTableRowFrame ---------- */ + +NS_QUERYFRAME_HEAD(nsTableRowFrame) + NS_QUERYFRAME_ENTRY(nsTableRowFrame) +NS_QUERYFRAME_TAIL_INHERITING(nsContainerFrame) + +nsTableRowFrame::nsTableRowFrame(ComputedStyle* aStyle, + nsPresContext* aPresContext, ClassID aID) + : nsContainerFrame(aStyle, aPresContext, aID), + mContentBSize(0), + mStylePctBSize(0), + mStyleFixedBSize(0), + mMaxCellAscent(0), + mMaxCellDescent(0), + mBStartBorderWidth(0), + mBEndBorderWidth(0), + mIEndContBorderWidth(0), + mBStartContBorderWidth(0), + mIStartContBorderWidth(0) { + mBits.mRowIndex = 0; + mBits.mHasFixedBSize = 0; + mBits.mHasPctBSize = 0; + mBits.mFirstInserted = 0; + ResetBSize(0); +} + +nsTableRowFrame::~nsTableRowFrame() = default; + +void nsTableRowFrame::Init(nsIContent* aContent, nsContainerFrame* aParent, + nsIFrame* aPrevInFlow) { + // Let the base class do its initialization + nsContainerFrame::Init(aContent, aParent, aPrevInFlow); + + NS_ASSERTION(mozilla::StyleDisplay::TableRow == StyleDisplay()->mDisplay, + "wrong display on table row frame"); + + if (aPrevInFlow) { + // Set the row index + nsTableRowFrame* rowFrame = (nsTableRowFrame*)aPrevInFlow; + + SetRowIndex(rowFrame->GetRowIndex()); + } else { + mWritingMode = GetTableFrame()->GetWritingMode(); + } +} + +void nsTableRowFrame::DestroyFrom(nsIFrame* aDestructRoot, + PostDestroyData& aPostDestroyData) { + if (HasAnyStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN)) { + nsTableFrame::UnregisterPositionedTablePart(this, aDestructRoot); + } + + nsContainerFrame::DestroyFrom(aDestructRoot, aPostDestroyData); +} + +/* virtual */ +void nsTableRowFrame::DidSetComputedStyle(ComputedStyle* aOldComputedStyle) { + nsContainerFrame::DidSetComputedStyle(aOldComputedStyle); + + if (!aOldComputedStyle) // avoid this on init + return; + +#ifdef ACCESSIBILITY + if (nsAccessibilityService* accService = GetAccService()) { + // If a table row's background color is now different from + // the background color of its previous row, it is possible our + // table now has alternating row colors. This changes whether or not + // the table is classified as a layout table or data table. + // We invalidate on every background color change to avoid + // walking the tree in search of the nearest row. + if (StyleBackground()->BackgroundColor(this) != + aOldComputedStyle->StyleBackground()->BackgroundColor( + aOldComputedStyle)) { + // We send a notification here to invalidate the a11y cache on the + // table so the next fetch of IsProbablyLayoutTable() is accurate. + accService->TableLayoutGuessMaybeChanged(PresShell(), mContent); + } + } +#endif + + nsTableFrame* tableFrame = GetTableFrame(); + if (tableFrame->IsBorderCollapse() && + tableFrame->BCRecalcNeeded(aOldComputedStyle, Style())) { + TableArea damageArea(0, GetRowIndex(), tableFrame->GetColCount(), 1); + tableFrame->AddBCDamageArea(damageArea); + } +} + +void nsTableRowFrame::AppendFrames(ChildListID aListID, + nsFrameList&& aFrameList) { + NS_ASSERTION(aListID == FrameChildListID::Principal, "unexpected child list"); + + DrainSelfOverflowList(); // ensure the last frame is in mFrames + const nsFrameList::Slice& newCells = + mFrames.AppendFrames(nullptr, std::move(aFrameList)); + + // Add the new cell frames to the table + nsTableFrame* tableFrame = GetTableFrame(); + for (nsIFrame* childFrame : newCells) { + NS_ASSERTION(childFrame->IsTableCellFrame(), + "Not a table cell frame/pseudo frame construction failure"); + tableFrame->AppendCell(static_cast<nsTableCellFrame&>(*childFrame), + GetRowIndex()); + } + + PresShell()->FrameNeedsReflow(this, IntrinsicDirty::FrameAndAncestors, + NS_FRAME_HAS_DIRTY_CHILDREN); + tableFrame->SetGeometryDirty(); +} + +void nsTableRowFrame::InsertFrames(ChildListID aListID, nsIFrame* aPrevFrame, + const nsLineList::iterator* aPrevFrameLine, + nsFrameList&& aFrameList) { + NS_ASSERTION(aListID == FrameChildListID::Principal, "unexpected child list"); + NS_ASSERTION(!aPrevFrame || aPrevFrame->GetParent() == this, + "inserting after sibling frame with different parent"); + if (mFrames.IsEmpty() || (aPrevFrame && !aPrevFrame->GetNextSibling())) { + // This is actually an append (though our caller didn't figure that out), + // and our append codepath is both simpler/faster _and_ less buggy. + // https://bugzilla.mozilla.org/show_bug.cgi?id=1388898 tracks the bugginess + AppendFrames(aListID, std::move(aFrameList)); + return; + } + + DrainSelfOverflowList(); // ensure aPrevFrame is in mFrames + // Insert Frames in the frame list + const nsFrameList::Slice& newCells = + mFrames.InsertFrames(nullptr, aPrevFrame, std::move(aFrameList)); + + nsTableCellFrame* prevCellFrame = + static_cast<nsTableCellFrame*>(nsTableFrame::GetFrameAtOrBefore( + this, aPrevFrame, LayoutFrameType::TableCell)); + nsTArray<nsTableCellFrame*> cellChildren; + for (nsIFrame* childFrame : newCells) { + NS_ASSERTION(childFrame->IsTableCellFrame(), + "Not a table cell frame/pseudo frame construction failure"); + cellChildren.AppendElement(static_cast<nsTableCellFrame*>(childFrame)); + } + // insert the cells into the cell map + int32_t colIndex = -1; + if (prevCellFrame) { + colIndex = prevCellFrame->ColIndex(); + } + nsTableFrame* tableFrame = GetTableFrame(); + tableFrame->InsertCells(cellChildren, GetRowIndex(), colIndex); + + PresShell()->FrameNeedsReflow(this, IntrinsicDirty::FrameAndAncestors, + NS_FRAME_HAS_DIRTY_CHILDREN); + tableFrame->SetGeometryDirty(); +} + +void nsTableRowFrame::RemoveFrame(ChildListID aListID, nsIFrame* aOldFrame) { + NS_ASSERTION(aListID == FrameChildListID::Principal, "unexpected child list"); + + MOZ_ASSERT((nsTableCellFrame*)do_QueryFrame(aOldFrame)); + nsTableCellFrame* cellFrame = static_cast<nsTableCellFrame*>(aOldFrame); + // remove the cell from the cell map + nsTableFrame* tableFrame = GetTableFrame(); + tableFrame->RemoveCell(cellFrame, GetRowIndex()); + + // Remove the frame and destroy it + mFrames.DestroyFrame(aOldFrame); + + PresShell()->FrameNeedsReflow(this, IntrinsicDirty::FrameAndAncestors, + NS_FRAME_HAS_DIRTY_CHILDREN); + + tableFrame->SetGeometryDirty(); +} + +/* virtual */ +nsMargin nsTableRowFrame::GetUsedMargin() const { return nsMargin(0, 0, 0, 0); } + +/* virtual */ +nsMargin nsTableRowFrame::GetUsedBorder() const { return nsMargin(0, 0, 0, 0); } + +/* virtual */ +nsMargin nsTableRowFrame::GetUsedPadding() const { + return nsMargin(0, 0, 0, 0); +} + +static nscoord GetBSizeOfRowsSpannedBelowFirst( + nsTableCellFrame& aTableCellFrame, nsTableFrame& aTableFrame, + const WritingMode aWM) { + nscoord bsize = 0; + int32_t rowSpan = aTableFrame.GetEffectiveRowSpan(aTableCellFrame); + // add in bsize of rows spanned beyond the 1st one + nsIFrame* nextRow = aTableCellFrame.GetParent()->GetNextSibling(); + for (int32_t rowX = 1; ((rowX < rowSpan) && nextRow);) { + if (nextRow->IsTableRowFrame()) { + bsize += nextRow->BSize(aWM); + rowX++; + } + bsize += aTableFrame.GetRowSpacing(rowX); + nextRow = nextRow->GetNextSibling(); + } + return bsize; +} + +/** + * Post-reflow hook. This is where the table row does its post-processing + */ +void nsTableRowFrame::DidResize() { + // Resize and re-align the cell frames based on our row bsize + nsTableFrame* tableFrame = GetTableFrame(); + + WritingMode wm = GetWritingMode(); + ReflowOutput desiredSize(wm); + desiredSize.SetSize(wm, GetLogicalSize(wm)); + desiredSize.SetOverflowAreasToDesiredBounds(); + + nsSize containerSize = mRect.Size(); + + for (nsIFrame* childFrame : mFrames) { + nsTableCellFrame* cellFrame = do_QueryFrame(childFrame); + if (cellFrame) { + nscoord cellBSize = BSize(wm) + GetBSizeOfRowsSpannedBelowFirst( + *cellFrame, *tableFrame, wm); + + // If the bsize for the cell has changed, we need to reset it; + // and in vertical-rl mode, we need to update the cell's block position + // to account for the containerSize, which may not have been known + // earlier, so we always apply it here. + LogicalSize cellSize = cellFrame->GetLogicalSize(wm); + if (cellSize.BSize(wm) != cellBSize || wm.IsVerticalRL()) { + nsRect cellOldRect = cellFrame->GetRect(); + nsRect cellInkOverflow = cellFrame->InkOverflowRect(); + + if (wm.IsVerticalRL()) { + // Get the old position of the cell, as we want to preserve its + // inline coordinate. + LogicalPoint oldPos = + cellFrame->GetLogicalPosition(wm, containerSize); + + // The cell should normally be aligned with the row's block-start, + // so set the B component of the position to zero: + LogicalPoint newPos(wm, oldPos.I(wm), 0); + + // ...unless relative positioning is in effect, in which case the + // cell may have been moved away from the row's block-start + if (cellFrame->IsRelativelyOrStickyPositioned()) { + // Find out where the cell would have been without relative + // positioning. + LogicalPoint oldNormalPos = + cellFrame->GetLogicalNormalPosition(wm, containerSize); + // The difference (if any) between oldPos and oldNormalPos reflects + // relative positioning that was applied to the cell, and which we + // need to incorporate when resetting the position. + newPos.B(wm) = oldPos.B(wm) - oldNormalPos.B(wm); + } + + if (oldPos != newPos) { + cellFrame->SetPosition(wm, newPos, containerSize); + nsTableFrame::RePositionViews(cellFrame); + } + } + + cellSize.BSize(wm) = cellBSize; + cellFrame->SetSize(wm, cellSize); + + nsTableFrame* tableFrame = GetTableFrame(); + if (tableFrame->IsBorderCollapse()) { + nsTableFrame::InvalidateTableFrame(cellFrame, cellOldRect, + cellInkOverflow, false); + } + } + + // realign cell content based on the new bsize. We might be able to + // skip this if the bsize didn't change... maybe. Hard to tell. + cellFrame->BlockDirAlignChild(wm, mMaxCellAscent); + + // Always store the overflow, even if the height didn't change, since + // we'll lose part of our overflow area otherwise. + ConsiderChildOverflow(desiredSize.mOverflowAreas, cellFrame); + + // Note that if the cell's *content* needs to change in response + // to this height, it will get a special bsize reflow. + } + } + FinishAndStoreOverflow(&desiredSize); + if (HasView()) { + nsContainerFrame::SyncFrameViewAfterReflow(PresContext(), this, GetView(), + desiredSize.InkOverflow(), + ReflowChildFlags::Default); + } + // Let our base class do the usual work +} + +// returns max-ascent amongst all cells that have 'vertical-align: baseline' +// *including* cells with rowspans +nscoord nsTableRowFrame::GetMaxCellAscent() const { return mMaxCellAscent; } + +nscoord nsTableRowFrame::GetRowBaseline(WritingMode aWM) { + if (mMaxCellAscent) { + return mMaxCellAscent; + } + + // If we get here, we don't have a baseline on any of the cells in this row. + + nscoord ascent = 0; + for (nsIFrame* childFrame : mFrames) { + MOZ_ASSERT(childFrame->IsTableCellFrame()); + nscoord s = childFrame->SynthesizeBaselineBOffsetFromContentBox( + aWM, BaselineSharingGroup::First); + ascent = std::max(ascent, s); + } + return ascent; +} + +nscoord nsTableRowFrame::GetInitialBSize(nscoord aPctBasis) const { + nscoord bsize = 0; + if ((aPctBasis > 0) && HasPctBSize()) { + bsize = NSToCoordRound(GetPctBSize() * (float)aPctBasis); + } + if (HasFixedBSize()) { + bsize = std::max(bsize, GetFixedBSize()); + } + return std::max(bsize, GetContentBSize()); +} + +void nsTableRowFrame::ResetBSize(nscoord aFixedBSize) { + SetHasFixedBSize(false); + SetHasPctBSize(false); + SetFixedBSize(0); + SetPctBSize(0); + SetContentBSize(0); + + if (aFixedBSize > 0) { + SetFixedBSize(aFixedBSize); + } + + mMaxCellAscent = 0; + mMaxCellDescent = 0; +} + +void nsTableRowFrame::UpdateBSize(nscoord aBSize, nscoord aAscent, + nscoord aDescent, nsTableFrame* aTableFrame, + nsTableCellFrame* aCellFrame) { + if (!aTableFrame || !aCellFrame) { + NS_ASSERTION(false, "invalid call"); + return; + } + + if (aBSize != NS_UNCONSTRAINEDSIZE) { + if (!(aCellFrame->HasVerticalAlignBaseline())) { // only the cell's height + // matters + if (GetInitialBSize() < aBSize) { + int32_t rowSpan = aTableFrame->GetEffectiveRowSpan(*aCellFrame); + if (rowSpan == 1) { + SetContentBSize(aBSize); + } + } + } else { // the alignment on the baseline can change the bsize + NS_ASSERTION((aAscent != NS_UNCONSTRAINEDSIZE) && + (aDescent != NS_UNCONSTRAINEDSIZE), + "invalid call"); + // see if this is a long ascender + if (mMaxCellAscent < aAscent) { + mMaxCellAscent = aAscent; + } + // see if this is a long descender and without rowspan + if (mMaxCellDescent < aDescent) { + int32_t rowSpan = aTableFrame->GetEffectiveRowSpan(*aCellFrame); + if (rowSpan == 1) { + mMaxCellDescent = aDescent; + } + } + // keep the tallest bsize in sync + if (GetInitialBSize() < mMaxCellAscent + mMaxCellDescent) { + SetContentBSize(mMaxCellAscent + mMaxCellDescent); + } + } + } +} + +nscoord nsTableRowFrame::CalcBSize(const ReflowInput& aReflowInput) { + nsTableFrame* tableFrame = GetTableFrame(); + nscoord computedBSize = (NS_UNCONSTRAINEDSIZE == aReflowInput.ComputedBSize()) + ? 0 + : aReflowInput.ComputedBSize(); + ResetBSize(computedBSize); + + WritingMode wm = aReflowInput.GetWritingMode(); + const nsStylePosition* position = StylePosition(); + const auto& bsizeStyleCoord = position->BSize(wm); + if (bsizeStyleCoord.ConvertsToLength()) { + SetFixedBSize(bsizeStyleCoord.ToLength()); + } else if (bsizeStyleCoord.ConvertsToPercentage()) { + SetPctBSize(bsizeStyleCoord.ToPercentage()); + } + + for (nsIFrame* kidFrame : mFrames) { + nsTableCellFrame* cellFrame = do_QueryFrame(kidFrame); + if (cellFrame) { + MOZ_ASSERT(cellFrame->GetWritingMode() == wm); + LogicalSize desSize = cellFrame->GetDesiredSize(); + if ((NS_UNCONSTRAINEDSIZE == aReflowInput.AvailableBSize()) && + !GetPrevInFlow()) { + CalculateCellActualBSize(cellFrame, desSize.BSize(wm), wm); + } + // bsize may have changed, adjust descent to absorb any excess difference + nscoord ascent; + if (!kidFrame->PrincipalChildList() + .FirstChild() + ->PrincipalChildList() + .FirstChild()) + ascent = desSize.BSize(wm); + else + ascent = cellFrame->GetCellBaseline(); + nscoord descent = desSize.BSize(wm) - ascent; + UpdateBSize(desSize.BSize(wm), ascent, descent, tableFrame, cellFrame); + } + } + return GetInitialBSize(); +} + +void nsTableRowFrame::PaintCellBackgroundsForFrame( + nsIFrame* aFrame, nsDisplayListBuilder* aBuilder, + const nsDisplayListSet& aLists, const nsPoint& aOffset) { + // Compute background rect by iterating all cell frame. + const nsPoint toReferenceFrame = aBuilder->ToReferenceFrame(aFrame); + for (nsTableCellFrame* cell = GetFirstCell(); cell; + cell = cell->GetNextCell()) { + if (!cell->ShouldPaintBackground(aBuilder)) { + continue; + } + + auto cellRect = + cell->GetRectRelativeToSelf() + cell->GetNormalPosition() + aOffset; + if (!aBuilder->GetDirtyRect().Intersects(cellRect)) { + continue; + } + cellRect += toReferenceFrame; + nsDisplayBackgroundImage::AppendBackgroundItemsToTop( + aBuilder, aFrame, cellRect, aLists.BorderBackground(), true, + aFrame->GetRectRelativeToSelf() + toReferenceFrame, cell); + } +} + +void nsTableRowFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder, + const nsDisplayListSet& aLists) { + DisplayOutsetBoxShadow(aBuilder, aLists.BorderBackground()); + + PaintCellBackgroundsForFrame(this, aBuilder, aLists); + + DisplayInsetBoxShadow(aBuilder, aLists.BorderBackground()); + + DisplayOutline(aBuilder, aLists); + + for (nsIFrame* kid : PrincipalChildList()) { + BuildDisplayListForChild(aBuilder, kid, aLists); + } +} + +LogicalSides nsTableRowFrame::GetLogicalSkipSides() const { + LogicalSides skip(mWritingMode); + if (MOZ_UNLIKELY(StyleBorder()->mBoxDecorationBreak == + StyleBoxDecorationBreak::Clone)) { + return skip; + } + + if (GetPrevInFlow()) { + skip |= eLogicalSideBitsBStart; + } + if (GetNextInFlow()) { + skip |= eLogicalSideBitsBEnd; + } + return skip; +} + +// Calculate the cell's actual bsize given its pass2 bsize. +// Takes into account the specified bsize (in the style). +// Modifies the desired bsize that is passed in. +nsresult nsTableRowFrame::CalculateCellActualBSize(nsTableCellFrame* aCellFrame, + nscoord& aDesiredBSize, + WritingMode aWM) { + nscoord specifiedBSize = 0; + + // Get the bsize specified in the style information + const nsStylePosition* position = aCellFrame->StylePosition(); + + int32_t rowSpan = GetTableFrame()->GetEffectiveRowSpan(*aCellFrame); + + const auto& bsizeStyleCoord = position->BSize(aWM); + if (bsizeStyleCoord.ConvertsToLength()) { + // In quirks mode, table cell isize should be content-box, but bsize + // should be border-box. + // Because of this historic anomaly, we do not use quirk.css + // (since we can't specify one value of box-sizing for isize and another + // for bsize) + specifiedBSize = bsizeStyleCoord.ToLength(); + if (PresContext()->CompatibilityMode() != eCompatibility_NavQuirks && + position->mBoxSizing == StyleBoxSizing::Content) { + specifiedBSize += + aCellFrame->GetLogicalUsedBorderAndPadding(aWM).BStartEnd(aWM); + } + + if (1 == rowSpan) { + SetFixedBSize(specifiedBSize); + } + } else if (bsizeStyleCoord.ConvertsToPercentage()) { + if (1 == rowSpan) { + SetPctBSize(bsizeStyleCoord.ToPercentage()); + } + } + + // If the specified bsize is greater than the desired bsize, + // then use the specified bsize + if (specifiedBSize > aDesiredBSize) { + aDesiredBSize = specifiedBSize; + } + + return NS_OK; +} + +// Calculates the available isize for the table cell based on the known +// column isizes taking into account column spans and column spacing +static nscoord CalcAvailISize(nsTableFrame& aTableFrame, + nsTableCellFrame& aCellFrame) { + nscoord cellAvailISize = 0; + uint32_t colIndex = aCellFrame.ColIndex(); + int32_t colspan = aTableFrame.GetEffectiveColSpan(aCellFrame); + NS_ASSERTION(colspan > 0, "effective colspan should be positive"); + nsTableFrame* fifTable = + static_cast<nsTableFrame*>(aTableFrame.FirstInFlow()); + + for (int32_t spanX = 0; spanX < colspan; spanX++) { + cellAvailISize += fifTable->GetColumnISizeFromFirstInFlow(colIndex + spanX); + if (spanX > 0 && aTableFrame.ColumnHasCellSpacingBefore(colIndex + spanX)) { + cellAvailISize += aTableFrame.GetColSpacing(colIndex + spanX - 1); + } + } + return cellAvailISize; +} + +static nscoord GetSpaceBetween(int32_t aPrevColIndex, int32_t aColIndex, + int32_t aColSpan, nsTableFrame& aTableFrame, + bool aCheckVisibility) { + nscoord space = 0; + int32_t colIdx; + nsTableFrame* fifTable = + static_cast<nsTableFrame*>(aTableFrame.FirstInFlow()); + for (colIdx = aPrevColIndex + 1; aColIndex > colIdx; colIdx++) { + bool isCollapsed = false; + if (!aCheckVisibility) { + space += fifTable->GetColumnISizeFromFirstInFlow(colIdx); + } else { + nsTableColFrame* colFrame = aTableFrame.GetColFrame(colIdx); + const nsStyleVisibility* colVis = colFrame->StyleVisibility(); + bool collapseCol = StyleVisibility::Collapse == colVis->mVisible; + nsIFrame* cgFrame = colFrame->GetParent(); + const nsStyleVisibility* groupVis = cgFrame->StyleVisibility(); + bool collapseGroup = StyleVisibility::Collapse == groupVis->mVisible; + isCollapsed = collapseCol || collapseGroup; + if (!isCollapsed) + space += fifTable->GetColumnISizeFromFirstInFlow(colIdx); + } + if (!isCollapsed && aTableFrame.ColumnHasCellSpacingBefore(colIdx)) { + space += aTableFrame.GetColSpacing(colIdx - 1); + } + } + return space; +} + +// subtract the bsizes of aRow's prev in flows from the unpaginated bsize +static nscoord CalcBSizeFromUnpaginatedBSize(nsTableRowFrame& aRow, + WritingMode aWM) { + nscoord bsize = 0; + nsTableRowFrame* firstInFlow = + static_cast<nsTableRowFrame*>(aRow.FirstInFlow()); + if (firstInFlow->HasUnpaginatedBSize()) { + bsize = firstInFlow->GetUnpaginatedBSize(); + for (nsIFrame* prevInFlow = aRow.GetPrevInFlow(); prevInFlow; + prevInFlow = prevInFlow->GetPrevInFlow()) { + bsize -= prevInFlow->BSize(aWM); + } + } + return std::max(bsize, 0); +} + +void nsTableRowFrame::ReflowChildren(nsPresContext* aPresContext, + ReflowOutput& aDesiredSize, + const ReflowInput& aReflowInput, + nsTableFrame& aTableFrame, + nsReflowStatus& aStatus) { + aStatus.Reset(); + + // XXXldb Should we be checking constrained bsize instead? + const bool isPaginated = aPresContext->IsPaginated(); + const bool borderCollapse = aTableFrame.IsBorderCollapse(); + + int32_t cellColSpan = + 1; // must be defined here so it's set properly for non-cell kids + + // remember the col index of the previous cell to handle rowspans into this + // row + int32_t prevColIndex = -1; + nscoord iCoord = 0; // running total of children inline-coord offset + + // This computes the max of all cell bsizes + nscoord cellMaxBSize = 0; + + // Reflow each of our existing cell frames + WritingMode wm = aReflowInput.GetWritingMode(); + nsSize containerSize = aReflowInput.ComputedSizeAsContainerIfConstrained(); + + for (nsIFrame* kidFrame : mFrames) { + nsTableCellFrame* cellFrame = do_QueryFrame(kidFrame); + if (!cellFrame) { + // XXXldb nsCSSFrameConstructor needs to enforce this! + MOZ_ASSERT_UNREACHABLE("yikes, a non-row child"); + + // it's an unknown frame type, give it a generic reflow and ignore the + // results + TableCellReflowInput kidReflowInput( + aPresContext, aReflowInput, kidFrame, + LogicalSize(kidFrame->GetWritingMode(), 0, 0), + ReflowInput::InitFlag::CallerWillInit); + InitChildReflowInput(*aPresContext, LogicalSize(wm), false, + kidReflowInput); + ReflowOutput desiredSize(aReflowInput); + nsReflowStatus status; + ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowInput, 0, 0, + ReflowChildFlags::Default, status); + kidFrame->DidReflow(aPresContext, nullptr); + + continue; + } + + // See if we should only reflow the dirty child frames + bool doReflowChild = true; + if (!aReflowInput.ShouldReflowAllKids() && !aTableFrame.IsGeometryDirty() && + !kidFrame->IsSubtreeDirty()) { + if (!aReflowInput.mFlags.mSpecialBSizeReflow) doReflowChild = false; + } else if ((NS_UNCONSTRAINEDSIZE != aReflowInput.AvailableBSize())) { + // We don't reflow a rowspan >1 cell here with a constrained bsize. + // That happens in nsTableRowGroupFrame::SplitSpanningCells. + if (aTableFrame.GetEffectiveRowSpan(*cellFrame) > 1) { + doReflowChild = false; + } + } + if (aReflowInput.mFlags.mSpecialBSizeReflow) { + if (!isPaginated && + !cellFrame->HasAnyStateBits(NS_FRAME_CONTAINS_RELATIVE_BSIZE)) { + continue; + } + } + + uint32_t cellColIndex = cellFrame->ColIndex(); + cellColSpan = aTableFrame.GetEffectiveColSpan(*cellFrame); + + // If the adjacent cell is in a prior row (because of a rowspan) add in the + // space NOTE: prevColIndex can be -1 here. + if (prevColIndex != (static_cast<int32_t>(cellColIndex) - 1)) { + iCoord += GetSpaceBetween(prevColIndex, cellColIndex, cellColSpan, + aTableFrame, false); + } + + // remember the rightmost (ltr) or leftmost (rtl) column this cell spans + // into + prevColIndex = cellColIndex + (cellColSpan - 1); + + // Reflow the child frame + nsRect kidRect = kidFrame->GetRect(); + LogicalPoint origKidNormalPosition = + kidFrame->GetLogicalNormalPosition(wm, containerSize); + // All cells' no-relative-positioning position should be snapped to the + // row's bstart edge. + // This doesn't hold in vertical-rl mode, where we don't yet know the + // correct containerSize for the row frame. In that case, we'll have to + // fix up child positions later, after determining our desiredSize. + NS_ASSERTION(origKidNormalPosition.B(wm) == 0 || wm.IsVerticalRL(), + "unexpected kid position"); + + nsRect kidInkOverflow = kidFrame->InkOverflowRect(); + LogicalPoint kidPosition(wm, iCoord, 0); + bool firstReflow = kidFrame->HasAnyStateBits(NS_FRAME_FIRST_REFLOW); + + if (doReflowChild) { + // Calculate the available isize for the table cell using the known + // column isizes + nscoord availCellISize = CalcAvailISize(aTableFrame, *cellFrame); + + Maybe<TableCellReflowInput> kidReflowInput; + ReflowOutput desiredSize(aReflowInput); + + // If the avail isize is not the same as last time we reflowed the cell or + // the cell wants to be bigger than what was available last time or + // it is a style change reflow or we are printing, then we must reflow the + // cell. Otherwise we can skip the reflow. + // XXXldb Why is this condition distinct from doReflowChild above? + WritingMode wm = aReflowInput.GetWritingMode(); + NS_ASSERTION(cellFrame->GetWritingMode() == wm, + "expected consistent writing-mode within table"); + LogicalSize cellDesiredSize = cellFrame->GetDesiredSize(); + if ((availCellISize != cellFrame->GetPriorAvailISize()) || + (cellDesiredSize.ISize(wm) > cellFrame->GetPriorAvailISize()) || + HasAnyStateBits(NS_FRAME_IS_DIRTY) || isPaginated || + cellFrame->IsSubtreeDirty() || + // See if it needs a special reflow, or if it had one that we need to + // undo. + cellFrame->HasAnyStateBits(NS_FRAME_CONTAINS_RELATIVE_BSIZE) || + HasPctBSize()) { + // Reflow the cell to fit the available isize, bsize + // XXX The old IR_ChildIsDirty code used availCellISize here. + LogicalSize kidAvailSize(wm, availCellISize, + aReflowInput.AvailableBSize()); + + // Reflow the child + kidReflowInput.emplace(aPresContext, aReflowInput, kidFrame, + kidAvailSize, + ReflowInput::InitFlag::CallerWillInit); + InitChildReflowInput(*aPresContext, kidAvailSize, borderCollapse, + *kidReflowInput); + + nsReflowStatus status; + ReflowChild(kidFrame, aPresContext, desiredSize, *kidReflowInput, wm, + kidPosition, containerSize, ReflowChildFlags::Default, + status); + + // allow the table to determine if/how the table needs to be rebalanced + // If any of the cells are not complete, then we're not complete + if (status.IsIncomplete()) { + aStatus.Reset(); + aStatus.SetIncomplete(); + } + } else { + if (iCoord != origKidNormalPosition.I(wm)) { + kidFrame->InvalidateFrameSubtree(); + } + + desiredSize.SetSize(wm, cellDesiredSize); + desiredSize.mOverflowAreas = cellFrame->GetOverflowAreas(); + + // if we are in a floated table, our position is not yet established, so + // we cannot reposition our views the containing block will do this for + // us after positioning the table + if (!aTableFrame.IsFloating()) { + // Because we may have moved the frame we need to make sure any views + // are positioned properly. We have to do this, because any one of our + // parent frames could have moved and we have no way of knowing... + nsTableFrame::RePositionViews(kidFrame); + } + } + + if (NS_UNCONSTRAINEDSIZE == aReflowInput.AvailableBSize()) { + if (!GetPrevInFlow()) { + // Calculate the cell's actual bsize given its pass2 bsize. This + // function takes into account the specified bsize (in the style) + CalculateCellActualBSize(cellFrame, desiredSize.BSize(wm), wm); + } + // bsize may have changed, adjust descent to absorb any excess + // difference + nscoord ascent; + if (!kidFrame->PrincipalChildList() + .FirstChild() + ->PrincipalChildList() + .FirstChild()) { + ascent = desiredSize.BSize(wm); + } else { + ascent = ((nsTableCellFrame*)kidFrame)->GetCellBaseline(); + } + nscoord descent = desiredSize.BSize(wm) - ascent; + UpdateBSize(desiredSize.BSize(wm), ascent, descent, &aTableFrame, + cellFrame); + } else { + cellMaxBSize = std::max(cellMaxBSize, desiredSize.BSize(wm)); + int32_t rowSpan = + aTableFrame.GetEffectiveRowSpan((nsTableCellFrame&)*kidFrame); + if (1 == rowSpan) { + SetContentBSize(cellMaxBSize); + } + } + + // Place the child + desiredSize.ISize(wm) = availCellISize; + + ReflowChildFlags flags = ReflowChildFlags::Default; + + if (kidReflowInput) { + // We reflowed. Apply relative positioning in the normal way. + flags = ReflowChildFlags::ApplyRelativePositioning; + } else if (kidFrame->IsRelativelyOrStickyPositioned()) { + // We didn't reflow. Do the positioning part of what + // MovePositionBy does internally. (This codepath should really + // be merged into the else below if we can.) + nsMargin* computedOffsetProp = + kidFrame->GetProperty(nsIFrame::ComputedOffsetProperty()); + + // On our fist reflow sticky children may not have the property yet (we + // need to reflow the children first to size the scroll frame). + LogicalMargin computedOffsets( + wm, computedOffsetProp ? *computedOffsetProp : nsMargin()); + ReflowInput::ApplyRelativePositioning(kidFrame, wm, computedOffsets, + &kidPosition, containerSize); + } + + // In vertical-rl mode, we are likely to have containerSize.width = 0 + // because ComputedWidth() was NS_UNCONSTRAINEDSIZE. + // For cases where that's wrong, we will fix up the position later. + FinishReflowChild(kidFrame, aPresContext, desiredSize, + kidReflowInput.ptrOr(nullptr), wm, kidPosition, + containerSize, flags); + + nsTableFrame* tableFrame = GetTableFrame(); + if (tableFrame->IsBorderCollapse()) { + nsTableFrame::InvalidateTableFrame(kidFrame, kidRect, kidInkOverflow, + firstReflow); + } + + iCoord += desiredSize.ISize(wm); + } else { + if (iCoord != origKidNormalPosition.I(wm)) { + // Invalidate the old position + kidFrame->InvalidateFrameSubtree(); + // Move to the new position. As above, we need to account for relative + // positioning. + kidFrame->MovePositionBy( + wm, LogicalPoint(wm, iCoord - origKidNormalPosition.I(wm), 0)); + nsTableFrame::RePositionViews(kidFrame); + // invalidate the new position + kidFrame->InvalidateFrameSubtree(); + } + // we need to account for the cell's isize even if it isn't reflowed + iCoord += kidFrame->ISize(wm); + + if (kidFrame->GetNextInFlow()) { + aStatus.Reset(); + aStatus.SetIncomplete(); + } + } + ConsiderChildOverflow(aDesiredSize.mOverflowAreas, kidFrame); + iCoord += aTableFrame.GetColSpacing(cellColIndex); + } + + // Just set our isize to what was available. + // The table will calculate the isize and not use our value. + aDesiredSize.ISize(wm) = aReflowInput.AvailableISize(); + + if (aReflowInput.mFlags.mSpecialBSizeReflow) { + aDesiredSize.BSize(wm) = BSize(wm); + } else if (NS_UNCONSTRAINEDSIZE == aReflowInput.AvailableBSize()) { + aDesiredSize.BSize(wm) = CalcBSize(aReflowInput); + if (GetPrevInFlow()) { + nscoord bsize = CalcBSizeFromUnpaginatedBSize(*this, wm); + aDesiredSize.BSize(wm) = std::max(aDesiredSize.BSize(wm), bsize); + } else { + if (isPaginated && HasStyleBSize()) { + // set the unpaginated bsize so next in flows can try to honor it + SetHasUnpaginatedBSize(true); + SetUnpaginatedBSize(aPresContext, aDesiredSize.BSize(wm)); + } + if (isPaginated && HasUnpaginatedBSize()) { + aDesiredSize.BSize(wm) = + std::max(aDesiredSize.BSize(wm), GetUnpaginatedBSize()); + } + } + } else { // constrained bsize, paginated + // Compute the bsize we should have from style (subtracting the + // bsize from our prev-in-flows from the style bsize) + nscoord styleBSize = CalcBSizeFromUnpaginatedBSize(*this, wm); + if (styleBSize > aReflowInput.AvailableBSize()) { + styleBSize = aReflowInput.AvailableBSize(); + aStatus.SetIncomplete(); + } + aDesiredSize.BSize(wm) = std::max(cellMaxBSize, styleBSize); + } + + if (wm.IsVerticalRL()) { + // Any children whose width was not the same as our final + // aDesiredSize.BSize will have been misplaced earlier at the + // FinishReflowChild stage. So fix them up now. + for (nsIFrame* kidFrame : mFrames) { + nsTableCellFrame* cellFrame = do_QueryFrame(kidFrame); + if (!cellFrame) { + continue; + } + if (kidFrame->BSize(wm) != aDesiredSize.BSize(wm)) { + kidFrame->MovePositionBy( + wm, + LogicalPoint(wm, 0, kidFrame->BSize(wm) - aDesiredSize.BSize(wm))); + nsTableFrame::RePositionViews(kidFrame); + // Do we need to InvalidateFrameSubtree() here? + } + } + } + + aDesiredSize.UnionOverflowAreasWithDesiredBounds(); + FinishAndStoreOverflow(&aDesiredSize); +} + +/** Layout the entire row. + * This method stacks cells in the inline dir according to HTML 4.0 rules. + */ +void nsTableRowFrame::Reflow(nsPresContext* aPresContext, + ReflowOutput& aDesiredSize, + const ReflowInput& aReflowInput, + nsReflowStatus& aStatus) { + MarkInReflow(); + DO_GLOBAL_REFLOW_COUNT("nsTableRowFrame"); + DISPLAY_REFLOW(aPresContext, this, aReflowInput, aDesiredSize, aStatus); + MOZ_ASSERT(aStatus.IsEmpty(), "Caller should pass a fresh reflow status!"); + + WritingMode wm = aReflowInput.GetWritingMode(); + + nsTableFrame* tableFrame = GetTableFrame(); + const nsStyleVisibility* rowVis = StyleVisibility(); + bool collapseRow = StyleVisibility::Collapse == rowVis->mVisible; + if (collapseRow) { + tableFrame->SetNeedToCollapse(true); + } + + // see if a special bsize reflow needs to occur due to having a pct bsize + nsTableFrame::CheckRequestSpecialBSizeReflow(aReflowInput); + + // See if we have a cell with specified/pct bsize + InitHasCellWithStyleBSize(tableFrame); + + ReflowChildren(aPresContext, aDesiredSize, aReflowInput, *tableFrame, + aStatus); + + if (aPresContext->IsPaginated() && !aStatus.IsFullyComplete() && + ShouldAvoidBreakInside(aReflowInput)) { + aStatus.SetInlineLineBreakBeforeAndReset(); + } + + // Just set our isize to what was available. + // The table will calculate the isize and not use our value. + aDesiredSize.ISize(wm) = aReflowInput.AvailableISize(); + + // If our parent is in initial reflow, it'll handle invalidating our + // entire overflow rect. + if (!GetParent()->HasAnyStateBits(NS_FRAME_FIRST_REFLOW) && + nsSize(aDesiredSize.Width(), aDesiredSize.Height()) != mRect.Size()) { + InvalidateFrame(); + } + + // Any absolutely-positioned children will get reflowed in + // nsIFrame::FixupPositionedTableParts in another pass, so propagate our + // dirtiness to them before our parent clears our dirty bits. + PushDirtyBitToAbsoluteFrames(); +} + +/** + * This function is called by the row group frame's SplitRowGroup() code when + * pushing a row frame that has cell frames that span into it. The cell frame + * should be reflowed with the specified height + */ +nscoord nsTableRowFrame::ReflowCellFrame(nsPresContext* aPresContext, + const ReflowInput& aReflowInput, + bool aIsTopOfPage, + nsTableCellFrame* aCellFrame, + nscoord aAvailableBSize, + nsReflowStatus& aStatus) { + MOZ_ASSERT(aAvailableBSize != NS_UNCONSTRAINEDSIZE, + "Why split cell frame if available bsize is unconstrained?"); + WritingMode wm = aReflowInput.GetWritingMode(); + + // Reflow the cell frame with the specified height. Use the existing width + nsSize containerSize = aCellFrame->GetSize(); + LogicalRect cellRect = aCellFrame->GetLogicalRect(wm, containerSize); + nsRect cellInkOverflow = aCellFrame->InkOverflowRect(); + + LogicalSize cellSize = cellRect.Size(wm); + LogicalSize availSize(wm, cellRect.ISize(wm), aAvailableBSize); + bool borderCollapse = GetTableFrame()->IsBorderCollapse(); + NS_ASSERTION(aCellFrame->GetWritingMode() == wm, + "expected consistent writing-mode within table"); + TableCellReflowInput cellReflowInput(aPresContext, aReflowInput, aCellFrame, + availSize, + ReflowInput::InitFlag::CallerWillInit); + InitChildReflowInput(*aPresContext, availSize, borderCollapse, + cellReflowInput); + cellReflowInput.mFlags.mIsTopOfPage = aIsTopOfPage; + + ReflowOutput desiredSize(aReflowInput); + + ReflowChild(aCellFrame, aPresContext, desiredSize, cellReflowInput, 0, 0, + ReflowChildFlags::NoMoveFrame, aStatus); + const bool isTruncated = + aAvailableBSize < desiredSize.BSize(wm) && + !aIsTopOfPage; // XXX Is !aIsTopOfPage check really necessary? + const bool isCompleteAndNotTruncated = aStatus.IsComplete() && !isTruncated; + if (isCompleteAndNotTruncated) { + desiredSize.BSize(wm) = aAvailableBSize; + } + aCellFrame->SetSize( + wm, LogicalSize(wm, cellSize.ISize(wm), desiredSize.BSize(wm))); + + // Note: BlockDirAlignChild can affect the overflow rect. + // XXX What happens if this cell has 'vertical-align: baseline' ? + // XXX Why is it assumed that the cell's ascent hasn't changed ? + if (isCompleteAndNotTruncated) { + aCellFrame->BlockDirAlignChild(wm, mMaxCellAscent); + } + + nsTableFrame::InvalidateTableFrame( + aCellFrame, cellRect.GetPhysicalRect(wm, containerSize), cellInkOverflow, + aCellFrame->HasAnyStateBits(NS_FRAME_FIRST_REFLOW)); + + aCellFrame->DidReflow(aPresContext, nullptr); + + return desiredSize.BSize(wm); +} + +nscoord nsTableRowFrame::CollapseRowIfNecessary(nscoord aRowOffset, + nscoord aISize, + bool aCollapseGroup, + bool& aDidCollapse) { + const nsStyleVisibility* rowVis = StyleVisibility(); + bool collapseRow = StyleVisibility::Collapse == rowVis->mVisible; + nsTableFrame* tableFrame = + static_cast<nsTableFrame*>(GetTableFrame()->FirstInFlow()); + if (collapseRow) { + tableFrame->SetNeedToCollapse(true); + } + + if (aRowOffset != 0) { + // We're moving, so invalidate our old position + InvalidateFrameSubtree(); + } + + WritingMode wm = GetWritingMode(); + + nsSize parentSize = GetParent()->GetSize(); + LogicalRect rowRect = GetLogicalRect(wm, parentSize); + nsRect oldRect = mRect; + nsRect oldInkOverflow = InkOverflowRect(); + + rowRect.BStart(wm) -= aRowOffset; + rowRect.ISize(wm) = aISize; + OverflowAreas overflow; + nscoord shift = 0; + nsSize containerSize = mRect.Size(); + + if (aCollapseGroup || collapseRow) { + aDidCollapse = true; + shift = rowRect.BSize(wm); + nsTableCellFrame* cellFrame = GetFirstCell(); + if (cellFrame) { + uint32_t rowIndex = cellFrame->RowIndex(); + shift += tableFrame->GetRowSpacing(rowIndex); + while (cellFrame) { + LogicalRect cRect = cellFrame->GetLogicalRect(wm, containerSize); + // If aRowOffset != 0, there's no point in invalidating the cells, since + // we've already invalidated our overflow area. Note that we _do_ still + // need to invalidate if our row is not moving, because the cell might + // span out of this row, so invalidating our row rect won't do enough. + if (aRowOffset == 0) { + InvalidateFrame(); + } + cRect.BSize(wm) = 0; + cellFrame->SetRect(wm, cRect, containerSize); + cellFrame = cellFrame->GetNextCell(); + } + } else { + shift += tableFrame->GetRowSpacing(GetRowIndex()); + } + rowRect.BSize(wm) = 0; + } else { // row is not collapsed + // remember the col index of the previous cell to handle rowspans into this + // row + int32_t prevColIndex = -1; + nscoord iPos = 0; // running total of children inline-axis offset + nsTableFrame* fifTable = + static_cast<nsTableFrame*>(tableFrame->FirstInFlow()); + + for (nsIFrame* kidFrame : mFrames) { + nsTableCellFrame* cellFrame = do_QueryFrame(kidFrame); + if (cellFrame) { + uint32_t cellColIndex = cellFrame->ColIndex(); + int32_t cellColSpan = tableFrame->GetEffectiveColSpan(*cellFrame); + + // If the adjacent cell is in a prior row (because of a rowspan) add in + // the space + // NOTE: prevColIndex can be -1 here. + if (prevColIndex != (static_cast<int32_t>(cellColIndex) - 1)) { + iPos += GetSpaceBetween(prevColIndex, cellColIndex, cellColSpan, + *tableFrame, true); + } + LogicalRect cRect(wm, iPos, 0, 0, rowRect.BSize(wm)); + + // remember the last (iend-wards-most) column this cell spans into + prevColIndex = cellColIndex + cellColSpan - 1; + int32_t actualColSpan = cellColSpan; + bool isVisible = false; + for (int32_t colIdx = cellColIndex; actualColSpan > 0; + colIdx++, actualColSpan--) { + nsTableColFrame* colFrame = tableFrame->GetColFrame(colIdx); + const nsStyleVisibility* colVis = colFrame->StyleVisibility(); + bool collapseCol = StyleVisibility::Collapse == colVis->mVisible; + nsIFrame* cgFrame = colFrame->GetParent(); + const nsStyleVisibility* groupVis = cgFrame->StyleVisibility(); + bool collapseGroup = StyleVisibility::Collapse == groupVis->mVisible; + bool isCollapsed = collapseCol || collapseGroup; + if (!isCollapsed) { + cRect.ISize(wm) += fifTable->GetColumnISizeFromFirstInFlow(colIdx); + isVisible = true; + if ((actualColSpan > 1)) { + nsTableColFrame* nextColFrame = + tableFrame->GetColFrame(colIdx + 1); + const nsStyleVisibility* nextColVis = + nextColFrame->StyleVisibility(); + if (StyleVisibility::Collapse != nextColVis->mVisible && + tableFrame->ColumnHasCellSpacingBefore(colIdx + 1)) { + cRect.ISize(wm) += tableFrame->GetColSpacing(cellColIndex); + } + } + } + } + iPos += cRect.ISize(wm); + if (isVisible) { + iPos += tableFrame->GetColSpacing(cellColIndex); + } + int32_t actualRowSpan = tableFrame->GetEffectiveRowSpan(*cellFrame); + nsTableRowFrame* rowFrame = GetNextRow(); + for (actualRowSpan--; actualRowSpan > 0 && rowFrame; actualRowSpan--) { + const nsStyleVisibility* nextRowVis = rowFrame->StyleVisibility(); + bool collapseNextRow = + StyleVisibility::Collapse == nextRowVis->mVisible; + if (!collapseNextRow) { + LogicalRect nextRect = rowFrame->GetLogicalRect(wm, containerSize); + cRect.BSize(wm) += + nextRect.BSize(wm) + + tableFrame->GetRowSpacing(rowFrame->GetRowIndex()); + } + rowFrame = rowFrame->GetNextRow(); + } + + nsRect oldCellRect = cellFrame->GetRect(); + LogicalPoint oldCellNormalPos = + cellFrame->GetLogicalNormalPosition(wm, containerSize); + + nsRect oldCellInkOverflow = cellFrame->InkOverflowRect(); + + if (aRowOffset == 0 && cRect.Origin(wm) != oldCellNormalPos) { + // We're moving the cell. Invalidate the old overflow area + cellFrame->InvalidateFrameSubtree(); + } + + cellFrame->MovePositionBy(wm, cRect.Origin(wm) - oldCellNormalPos); + cellFrame->SetSize(wm, cRect.Size(wm)); + + // XXXbz This looks completely bogus in the cases when we didn't + // collapse the cell! + LogicalRect cellBounds(wm, 0, 0, cRect.ISize(wm), cRect.BSize(wm)); + nsRect cellPhysicalBounds = + cellBounds.GetPhysicalRect(wm, containerSize); + OverflowAreas cellOverflow(cellPhysicalBounds, cellPhysicalBounds); + cellFrame->FinishAndStoreOverflow(cellOverflow, + cRect.Size(wm).GetPhysicalSize(wm)); + nsTableFrame::RePositionViews(cellFrame); + ConsiderChildOverflow(overflow, cellFrame); + + if (aRowOffset == 0) { + nsTableFrame::InvalidateTableFrame(cellFrame, oldCellRect, + oldCellInkOverflow, false); + } + } + } + } + + SetRect(wm, rowRect, containerSize); + overflow.UnionAllWith(nsRect(0, 0, rowRect.Width(wm), rowRect.Height(wm))); + FinishAndStoreOverflow(overflow, rowRect.Size(wm).GetPhysicalSize(wm)); + + nsTableFrame::RePositionViews(this); + nsTableFrame::InvalidateTableFrame(this, oldRect, oldInkOverflow, false); + return shift; +} + +/* + * The following method is called by the row group frame's SplitRowGroup() + * when it creates a continuing cell frame and wants to insert it into the + * row's child list. + */ +void nsTableRowFrame::InsertCellFrame(nsTableCellFrame* aFrame, + int32_t aColIndex) { + // Find the cell frame where col index < aColIndex + nsTableCellFrame* priorCell = nullptr; + for (nsIFrame* child : mFrames) { + nsTableCellFrame* cellFrame = do_QueryFrame(child); + if (cellFrame) { + uint32_t colIndex = cellFrame->ColIndex(); + // Can aColIndex be -1 here? Let's assume it can for now. + if (static_cast<int32_t>(colIndex) < aColIndex) { + priorCell = cellFrame; + } else + break; + } + } + mFrames.InsertFrame(this, priorCell, aFrame); +} + +nsTableRowFrame* nsTableRowFrame::GetNextRow() const { + nsIFrame* childFrame = GetNextSibling(); + while (childFrame) { + nsTableRowFrame* rowFrame = do_QueryFrame(childFrame); + if (rowFrame) { + NS_ASSERTION(mozilla::StyleDisplay::TableRow == + childFrame->StyleDisplay()->mDisplay, + "wrong display type on rowframe"); + return rowFrame; + } + childFrame = childFrame->GetNextSibling(); + } + return nullptr; +} + +NS_DECLARE_FRAME_PROPERTY_SMALL_VALUE(RowUnpaginatedHeightProperty, nscoord) + +void nsTableRowFrame::SetUnpaginatedBSize(nsPresContext* aPresContext, + nscoord aValue) { + NS_ASSERTION(!GetPrevInFlow(), "program error"); + // Set the property + SetProperty(RowUnpaginatedHeightProperty(), aValue); +} + +nscoord nsTableRowFrame::GetUnpaginatedBSize() { + return GetProperty(RowUnpaginatedHeightProperty()); +} + +void nsTableRowFrame::SetContinuousBCBorderWidth(LogicalSide aForSide, + BCPixelSize aPixelValue) { + switch (aForSide) { + case eLogicalSideIEnd: + mIEndContBorderWidth = aPixelValue; + return; + case eLogicalSideBStart: + mBStartContBorderWidth = aPixelValue; + return; + case eLogicalSideIStart: + mIStartContBorderWidth = aPixelValue; + return; + default: + NS_ERROR("invalid LogicalSide arg"); + } +} +#ifdef ACCESSIBILITY +a11y::AccType nsTableRowFrame::AccessibleType() { + return a11y::eHTMLTableRowType; +} +#endif +/** + * Sets the NS_ROW_HAS_CELL_WITH_STYLE_BSIZE bit to indicate whether + * this row has any cells that have non-auto-bsize. (Row-spanning + * cells are ignored.) + */ +void nsTableRowFrame::InitHasCellWithStyleBSize(nsTableFrame* aTableFrame) { + WritingMode wm = GetWritingMode(); + + for (nsIFrame* kidFrame : mFrames) { + nsTableCellFrame* cellFrame = do_QueryFrame(kidFrame); + if (!cellFrame) { + MOZ_ASSERT_UNREACHABLE("Table row has a non-cell child."); + continue; + } + // Ignore row-spanning cells + const auto& cellBSize = cellFrame->StylePosition()->BSize(wm); + if (aTableFrame->GetEffectiveRowSpan(*cellFrame) == 1 && + !cellBSize.IsAuto() && + /* calc() with both percentages and lengths treated like 'auto' */ + (cellBSize.ConvertsToLength() || cellBSize.ConvertsToPercentage())) { + AddStateBits(NS_ROW_HAS_CELL_WITH_STYLE_BSIZE); + return; + } + } + RemoveStateBits(NS_ROW_HAS_CELL_WITH_STYLE_BSIZE); +} + +void nsTableRowFrame::InvalidateFrame(uint32_t aDisplayItemKey, + bool aRebuildDisplayItems) { + nsIFrame::InvalidateFrame(aDisplayItemKey, aRebuildDisplayItems); + if (GetTableFrame()->IsBorderCollapse()) { + const bool rebuild = StaticPrefs::layout_display_list_retain_sc(); + GetParent()->InvalidateFrameWithRect(InkOverflowRect() + GetPosition(), + aDisplayItemKey, rebuild); + } +} + +void nsTableRowFrame::InvalidateFrameWithRect(const nsRect& aRect, + uint32_t aDisplayItemKey, + bool aRebuildDisplayItems) { + nsIFrame::InvalidateFrameWithRect(aRect, aDisplayItemKey, + aRebuildDisplayItems); + // If we have filters applied that would affects our bounds, then + // we get an inactive layer created and this is computed + // within FrameLayerBuilder + GetParent()->InvalidateFrameWithRect(aRect + GetPosition(), aDisplayItemKey, + aRebuildDisplayItems); +} + +/* ----- global methods ----- */ + +nsTableRowFrame* NS_NewTableRowFrame(PresShell* aPresShell, + ComputedStyle* aStyle) { + return new (aPresShell) nsTableRowFrame(aStyle, aPresShell->GetPresContext()); +} + +NS_IMPL_FRAMEARENA_HELPERS(nsTableRowFrame) + +#ifdef DEBUG_FRAME_DUMP +nsresult nsTableRowFrame::GetFrameName(nsAString& aResult) const { + return MakeFrameName(u"TableRow"_ns, aResult); +} +#endif |