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gecko-dev/layout/tables/nsTableRowFrame.cpp

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/* -*- 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 == kPrincipalList, "unexpected child list");
DrainSelfOverflowList(); // ensure the last frame is in mFrames
const nsFrameList::Slice& newCells =
mFrames.AppendFrames(nullptr, 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::TreeChange,
NS_FRAME_HAS_DIRTY_CHILDREN);
tableFrame->SetGeometryDirty();
}
void nsTableRowFrame::InsertFrames(ChildListID aListID, nsIFrame* aPrevFrame,
const nsLineList::iterator* aPrevFrameLine,
nsFrameList& aFrameList) {
NS_ASSERTION(aListID == kPrincipalList, "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, 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::TreeChange,
NS_FRAME_HAS_DIRTY_CHILDREN);
tableFrame->SetGeometryDirty();
}
void nsTableRowFrame::RemoveFrame(ChildListID aListID, nsIFrame* aOldFrame) {
NS_ASSERTION(aListID == kPrincipalList, "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::TreeChange,
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
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