/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is mozilla.org code. * * The Initial Developer of the Original Code is * Netscape Communications Corporation. * Portions created by the Initial Developer are Copyright (C) 1998 * the Initial Developer. All Rights Reserved. * * Contributor(s): * * Alternatively, the contents of this file may be used under the terms of * either of the GNU General Public License Version 2 or later (the "GPL"), * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ #include "nsTableRowFrame.h" #include "nsTableRowGroupFrame.h" #include "nsIRenderingContext.h" #include "nsIPresShell.h" #include "nsPresContext.h" #include "nsStyleContext.h" #include "nsStyleConsts.h" #include "nsGkAtoms.h" #include "nsIContent.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" struct nsTableCellReflowState : public nsHTMLReflowState { nsTableCellReflowState(nsPresContext* aPresContext, const nsHTMLReflowState& aParentReflowState, nsIFrame* aFrame, const nsSize& aAvailableSpace, PRBool aInit = PR_TRUE) : nsHTMLReflowState(aPresContext, aParentReflowState, aFrame, aAvailableSpace, -1, -1, aInit) { } void FixUp(const nsSize& aAvailSpace); }; void nsTableCellReflowState::FixUp(const nsSize& aAvailSpace) { // fix the mComputed values during a pass 2 reflow since the cell can be a percentage base NS_ASSERTION(NS_UNCONSTRAINEDSIZE != aAvailSpace.width, "unconstrained available width in reflow"); if (NS_UNCONSTRAINEDSIZE != ComputedWidth()) { nscoord computedWidth = aAvailSpace.width - mComputedBorderPadding.LeftRight(); computedWidth = PR_MAX(0, computedWidth); SetComputedWidth(computedWidth); } if (NS_UNCONSTRAINEDSIZE != ComputedHeight() && NS_UNCONSTRAINEDSIZE != aAvailSpace.height) { nscoord computedHeight = aAvailSpace.height - mComputedBorderPadding.TopBottom(); computedHeight = PR_MAX(0, computedHeight); SetComputedHeight(computedHeight); } } void nsTableRowFrame::InitChildReflowState(nsPresContext& aPresContext, const nsSize& aAvailSize, PRBool aBorderCollapse, nsTableCellReflowState& aReflowState) { nsMargin collapseBorder; nsMargin* pCollapseBorder = nsnull; if (aBorderCollapse) { // we only reflow cells, so don't need to check frame type nsBCTableCellFrame* bcCellFrame = (nsBCTableCellFrame*)aReflowState.frame; if (bcCellFrame) { pCollapseBorder = bcCellFrame->GetBorderWidth(collapseBorder); } } aReflowState.Init(&aPresContext, -1, -1, pCollapseBorder); aReflowState.FixUp(aAvailSize); } void nsTableRowFrame::SetFixedHeight(nscoord aValue) { nscoord height = PR_MAX(0, aValue); if (HasFixedHeight()) { if (height > mStyleFixedHeight) { mStyleFixedHeight = height; } } else { mStyleFixedHeight = height; if (height > 0) { SetHasFixedHeight(PR_TRUE); } } } void nsTableRowFrame::SetPctHeight(float aPctValue, PRBool aForce) { nscoord height = PR_MAX(0, NSToCoordRound(aPctValue * 100.0f)); if (HasPctHeight()) { if ((height > mStylePctHeight) || aForce) { mStylePctHeight = height; } } else { mStylePctHeight = height; if (height > 0.0f) { SetHasPctHeight(PR_TRUE); } } } /* ----------- nsTableRowFrame ---------- */ nsTableRowFrame::nsTableRowFrame(nsStyleContext* aContext) : nsHTMLContainerFrame(aContext) { mBits.mRowIndex = mBits.mFirstInserted = 0; ResetHeight(0); } nsTableRowFrame::~nsTableRowFrame() { } NS_IMETHODIMP nsTableRowFrame::Init(nsIContent* aContent, nsIFrame* aParent, nsIFrame* aPrevInFlow) { nsresult rv; // Let the base class do its initialization rv = nsHTMLContainerFrame::Init(aContent, aParent, aPrevInFlow); if (aPrevInFlow) { // Set the row index nsTableRowFrame* rowFrame = (nsTableRowFrame*)aPrevInFlow; SetRowIndex(rowFrame->GetRowIndex()); } return rv; } NS_IMETHODIMP nsTableRowFrame::AppendFrames(nsIAtom* aListName, nsIFrame* aFrameList) { NS_ASSERTION(!aListName, "unexpected child list"); // Append the frames mFrames.AppendFrames(nsnull, aFrameList); // Add the new cell frames to the table nsTableFrame *tableFrame = nsTableFrame::GetTableFrame(this); for (nsIFrame* childFrame = aFrameList; childFrame; childFrame = childFrame->GetNextSibling()) { if (IS_TABLE_CELL(childFrame->GetType())) { // Add the cell to the cell map tableFrame->AppendCell((nsTableCellFrame&)*childFrame, GetRowIndex()); } } PresContext()->PresShell()->FrameNeedsReflow(this, nsIPresShell::eTreeChange, NS_FRAME_HAS_DIRTY_CHILDREN); tableFrame->SetGeometryDirty(); return NS_OK; } NS_IMETHODIMP nsTableRowFrame::InsertFrames(nsIAtom* aListName, nsIFrame* aPrevFrame, nsIFrame* aFrameList) { NS_ASSERTION(!aListName, "unexpected child list"); NS_ASSERTION(!aPrevFrame || aPrevFrame->GetParent() == this, "inserting after sibling frame with different parent"); // Get the table frame nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this); // gather the new frames (only those which are cells) into an array nsIAtom* cellFrameType = (tableFrame->IsBorderCollapse()) ? nsGkAtoms::bcTableCellFrame : nsGkAtoms::tableCellFrame; nsTableCellFrame* prevCellFrame = (nsTableCellFrame *)nsTableFrame::GetFrameAtOrBefore(this, aPrevFrame, cellFrameType); nsVoidArray cellChildren; for (nsIFrame* childFrame = aFrameList; childFrame; childFrame = childFrame->GetNextSibling()) { if (IS_TABLE_CELL(childFrame->GetType())) { cellChildren.AppendElement(childFrame); } } // insert the cells into the cell map PRInt32 colIndex = -1; if (prevCellFrame) { prevCellFrame->GetColIndex(colIndex); } tableFrame->InsertCells(cellChildren, GetRowIndex(), colIndex); // Insert the frames in the frame list mFrames.InsertFrames(nsnull, aPrevFrame, aFrameList); PresContext()->PresShell()->FrameNeedsReflow(this, nsIPresShell::eTreeChange, NS_FRAME_HAS_DIRTY_CHILDREN); tableFrame->SetGeometryDirty(); return NS_OK; } NS_IMETHODIMP nsTableRowFrame::RemoveFrame(nsIAtom* aListName, nsIFrame* aOldFrame) { NS_ASSERTION(!aListName, "unexpected child list"); nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this); if (tableFrame) { if (IS_TABLE_CELL(aOldFrame->GetType())) { nsTableCellFrame* cellFrame = (nsTableCellFrame*)aOldFrame; PRInt32 colIndex; cellFrame->GetColIndex(colIndex); // remove the cell from the cell map tableFrame->RemoveCell(cellFrame, GetRowIndex()); // Remove the frame and destroy it mFrames.DestroyFrame(aOldFrame); PresContext()->PresShell()-> FrameNeedsReflow(this, nsIPresShell::eTreeChange, NS_FRAME_HAS_DIRTY_CHILDREN); tableFrame->SetGeometryDirty(); } else { NS_ERROR("unexpected frame type"); return NS_ERROR_INVALID_ARG; } } return NS_OK; } /* 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); } nscoord GetHeightOfRowsSpannedBelowFirst(nsTableCellFrame& aTableCellFrame, nsTableFrame& aTableFrame) { nscoord height = 0; nscoord cellSpacingY = aTableFrame.GetCellSpacingY(); PRInt32 rowSpan = aTableFrame.GetEffectiveRowSpan(aTableCellFrame); // add in height of rows spanned beyond the 1st one nsIFrame* nextRow = aTableCellFrame.GetParent()->GetNextSibling(); for (PRInt32 rowX = 1; ((rowX < rowSpan) && nextRow);) { if (nsGkAtoms::tableRowFrame == nextRow->GetType()) { height += nextRow->GetSize().height; rowX++; } height += cellSpacingY; nextRow = nextRow->GetNextSibling(); } return height; } nsTableCellFrame* nsTableRowFrame::GetFirstCell() { nsIFrame* childFrame = mFrames.FirstChild(); while (childFrame) { if (IS_TABLE_CELL(childFrame->GetType())) { return (nsTableCellFrame*)childFrame; } childFrame = childFrame->GetNextSibling(); } return nsnull; } /** * 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 height nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this); if (!tableFrame) return; nsTableIterator iter(*this); nsIFrame* childFrame = iter.First(); nsHTMLReflowMetrics desiredSize; desiredSize.width = mRect.width; desiredSize.height = mRect.height; desiredSize.mOverflowArea = nsRect(0, 0, desiredSize.width, desiredSize.height); while (childFrame) { if (IS_TABLE_CELL(childFrame->GetType())) { nsTableCellFrame* cellFrame = (nsTableCellFrame*)childFrame; nscoord cellHeight = mRect.height + GetHeightOfRowsSpannedBelowFirst(*cellFrame, *tableFrame); // resize the cell's height nsRect cellRect = cellFrame->GetRect(); nsRect cellOverflowRect = cellFrame->GetOverflowRect(); if (cellRect.height != cellHeight) { cellFrame->SetSize(nsSize(cellRect.width, cellHeight)); nsTableFrame::InvalidateFrame(cellFrame, cellRect, cellOverflowRect, PR_FALSE); } // realign cell content based on the new height. We might be able to // skip this if the height didn't change... maybe. Hard to tell. cellFrame->VerticallyAlignChild(mMaxCellAscent); // Always store the overflow, even if the height didn't change, since // we'll lose part of our overflow area otherwise. ConsiderChildOverflow(desiredSize.mOverflowArea, cellFrame); // Note that if the cell's *content* needs to change in response // to this height, it will get a special height reflow. } // Get the next child childFrame = iter.Next(); } FinishAndStoreOverflow(&desiredSize); if (HasView()) { nsContainerFrame::SyncFrameViewAfterReflow(PresContext(), this, GetView(), &desiredSize.mOverflowArea, 0); } // 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() { if(mMaxCellAscent) return mMaxCellAscent; // If we don't have a baseline on any of the cells we go for the lowest // content edge of the inner block frames. // Every table cell has a cell frame with its border and padding. Inside // the cell is a block frame. The cell is as high as the tallest cell in // the parent row. As a consequence the block frame might not touch both // the top and the bottom padding of it parent cell frame at the same time. // // bbbbbbbbbbbbbbbbbb cell border: b // bppppppppppppppppb cell padding: p // bpxxxxxxxxxxxxxxpb inner block: x // bpx xpb // bpx xpb // bpx xpb // bpxxxxxxxxxxxxxxpb base line // bp pb // bp pb // bppppppppppppppppb // bbbbbbbbbbbbbbbbbb nsTableIterator iter(*this); nsIFrame* childFrame = iter.First(); nscoord ascent = 0; while (childFrame) { if (IS_TABLE_CELL(childFrame->GetType())) { nsIFrame* firstKid = childFrame->GetFirstChild(nsnull); ascent = PR_MAX(ascent, firstKid->GetRect().YMost()); } // Get the next child childFrame = iter.Next(); } return ascent; } nscoord nsTableRowFrame::GetHeight(nscoord aPctBasis) const { nscoord height = 0; if ((aPctBasis > 0) && HasPctHeight()) { height = NSToCoordRound(GetPctHeight() * (float)aPctBasis); } if (HasFixedHeight()) { height = PR_MAX(height, GetFixedHeight()); } return PR_MAX(height, GetContentHeight()); } void nsTableRowFrame::ResetHeight(nscoord aFixedHeight) { SetHasFixedHeight(PR_FALSE); SetHasPctHeight(PR_FALSE); SetFixedHeight(0); SetPctHeight(0); SetContentHeight(0); if (aFixedHeight > 0) { SetFixedHeight(aFixedHeight); } mMaxCellAscent = 0; mMaxCellDescent = 0; } void nsTableRowFrame::UpdateHeight(nscoord aHeight, nscoord aAscent, nscoord aDescent, nsTableFrame* aTableFrame, nsTableCellFrame* aCellFrame) { if (!aTableFrame || !aCellFrame) { NS_ASSERTION(PR_FALSE , "invalid call"); return; } if (aHeight != NS_UNCONSTRAINEDSIZE) { if (!(aCellFrame->HasVerticalAlignBaseline())) { // only the cell's height matters if (GetHeight() < aHeight) { PRInt32 rowSpan = aTableFrame->GetEffectiveRowSpan(*aCellFrame); if (rowSpan == 1) { SetContentHeight(aHeight); } } } else { // the alignment on the baseline can change the height 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) { PRInt32 rowSpan = aTableFrame->GetEffectiveRowSpan(*aCellFrame); if (rowSpan == 1) { mMaxCellDescent = aDescent; } } // keep the tallest height in sync if (GetHeight() < mMaxCellAscent + mMaxCellDescent) { SetContentHeight(mMaxCellAscent + mMaxCellDescent); } } } } nscoord nsTableRowFrame::CalcHeight(const nsHTMLReflowState& aReflowState) { nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this); if (!tableFrame) return 0; nscoord computedHeight = (NS_UNCONSTRAINEDSIZE == aReflowState.ComputedHeight()) ? 0 : aReflowState.ComputedHeight(); ResetHeight(computedHeight); const nsStylePosition* position = GetStylePosition(); if (eStyleUnit_Coord == position->mHeight.GetUnit()) { SetFixedHeight(position->mHeight.GetCoordValue()); } else if (eStyleUnit_Percent == position->mHeight.GetUnit()) { SetPctHeight(position->mHeight.GetPercentValue()); } for (nsIFrame* kidFrame = mFrames.FirstChild(); kidFrame; kidFrame = kidFrame->GetNextSibling()) { if (IS_TABLE_CELL(kidFrame->GetType())) { nscoord availWidth = ((nsTableCellFrame *)kidFrame)->GetPriorAvailWidth(); nsSize desSize = ((nsTableCellFrame *)kidFrame)->GetDesiredSize(); if ((NS_UNCONSTRAINEDSIZE == aReflowState.availableHeight) && !GetPrevInFlow()) { CalculateCellActualSize(kidFrame, desSize.width, desSize.height, availWidth); } // height may have changed, adjust descent to absorb any excess difference nscoord ascent; if (!kidFrame->GetFirstChild(nsnull)->GetFirstChild(nsnull)) ascent = desSize.height; else ascent = ((nsTableCellFrame *)kidFrame)->GetCellBaseline(); nscoord descent = desSize.height - ascent; UpdateHeight(desSize.height, ascent, descent, tableFrame, (nsTableCellFrame*)kidFrame); } } return GetHeight(); } /** * We need a custom display item for table row backgrounds. This is only used * when the table row is the root of a stacking context (e.g., has 'opacity'). * Table row backgrounds can extend beyond the row frame bounds, when * the row contains row-spanning cells. */ class nsDisplayTableRowBackground : public nsDisplayTableItem { public: nsDisplayTableRowBackground(nsTableRowFrame* aFrame) : nsDisplayTableItem(aFrame) { MOZ_COUNT_CTOR(nsDisplayTableRowBackground); } #ifdef NS_BUILD_REFCNT_LOGGING virtual ~nsDisplayTableRowBackground() { MOZ_COUNT_DTOR(nsDisplayTableRowBackground); } #endif virtual void Paint(nsDisplayListBuilder* aBuilder, nsIRenderingContext* aCtx, const nsRect& aDirtyRect); NS_DISPLAY_DECL_NAME("TableRowBackground") }; void nsDisplayTableRowBackground::Paint(nsDisplayListBuilder* aBuilder, nsIRenderingContext* aCtx, const nsRect& aDirtyRect) { nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(mFrame); nsPoint pt = aBuilder->ToReferenceFrame(mFrame); TableBackgroundPainter painter(tableFrame, TableBackgroundPainter::eOrigin_TableRow, mFrame->PresContext(), *aCtx, aDirtyRect, pt); painter.PaintRow(static_cast(mFrame)); } NS_IMETHODIMP nsTableRowFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder, const nsRect& aDirtyRect, const nsDisplayListSet& aLists) { if (!IsVisibleInSelection(aBuilder)) return NS_OK; PRBool isRoot = aBuilder->IsAtRootOfPseudoStackingContext(); nsDisplayTableItem* item = nsnull; if (isRoot) { // This background is created regardless of whether this frame is // visible or not. Visibility decisions are delegated to the // table background painter. // We would use nsDisplayGeneric for this rare case except that we // need the background to be larger than the row frame in some // cases. item = new (aBuilder) nsDisplayTableRowBackground(this); nsresult rv = aLists.BorderBackground()->AppendNewToTop(item); NS_ENSURE_SUCCESS(rv, rv); } return nsTableFrame::DisplayGenericTablePart(aBuilder, this, aDirtyRect, aLists, item); } PRIntn nsTableRowFrame::GetSkipSides() const { PRIntn skip = 0; if (nsnull != GetPrevInFlow()) { skip |= 1 << NS_SIDE_TOP; } if (nsnull != GetNextInFlow()) { skip |= 1 << NS_SIDE_BOTTOM; } return skip; } // Calculate the cell's actual size given its pass2 desired width and height. // Takes into account the specified height (in the style), and any special logic // needed for backwards compatibility. // Modifies the desired width and height that are passed in. nsresult nsTableRowFrame::CalculateCellActualSize(nsIFrame* aCellFrame, nscoord& aDesiredWidth, nscoord& aDesiredHeight, nscoord aAvailWidth) { nscoord specifiedHeight = 0; // Get the height specified in the style information const nsStylePosition* position = aCellFrame->GetStylePosition(); nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this); if (!tableFrame) return NS_ERROR_NULL_POINTER; PRInt32 rowSpan = tableFrame->GetEffectiveRowSpan((nsTableCellFrame&)*aCellFrame); switch (position->mHeight.GetUnit()) { case eStyleUnit_Coord: specifiedHeight = position->mHeight.GetCoordValue(); if (1 == rowSpan) SetFixedHeight(specifiedHeight); break; case eStyleUnit_Percent: { if (1 == rowSpan) SetPctHeight(position->mHeight.GetPercentValue()); // pct heights are handled when all of the cells are finished, so don't set specifiedHeight break; } case eStyleUnit_Auto: default: break; } // If the specified height is greater than the desired height, then use the specified height if (specifiedHeight > aDesiredHeight) aDesiredHeight = specifiedHeight; if ((0 == aDesiredWidth) && (NS_UNCONSTRAINEDSIZE != aAvailWidth)) { // special Nav4 compatibility code for the width aDesiredWidth = aAvailWidth; } return NS_OK; } // Calculates the available width for the table cell based on the known // column widths taking into account column spans and column spacing static void CalcAvailWidth(nsTableFrame& aTableFrame, nsTableCellFrame& aCellFrame, nscoord aCellSpacingX, nscoord& aColAvailWidth, nscoord& aCellAvailWidth) { aColAvailWidth = aCellAvailWidth = NS_UNCONSTRAINEDSIZE; PRInt32 colIndex; aCellFrame.GetColIndex(colIndex); PRInt32 colspan = aTableFrame.GetEffectiveColSpan(aCellFrame); nscoord cellSpacing = 0; for (PRInt32 spanX = 0; spanX < colspan; spanX++) { nscoord colWidth = aTableFrame.GetColumnWidth(colIndex + spanX); if (NS_UNCONSTRAINEDSIZE == aColAvailWidth) { aColAvailWidth = colWidth; } else { aColAvailWidth += colWidth; } if ((spanX > 0) && (aTableFrame.GetNumCellsOriginatingInCol(colIndex + spanX) > 0)) { cellSpacing += aCellSpacingX; } } if (NS_UNCONSTRAINEDSIZE != aColAvailWidth) { aColAvailWidth += cellSpacing; } aCellAvailWidth = aColAvailWidth; } nscoord GetSpaceBetween(PRInt32 aPrevColIndex, PRInt32 aColIndex, PRInt32 aColSpan, nsTableFrame& aTableFrame, nscoord aCellSpacingX, PRBool aIsLeftToRight, PRBool aCheckVisibility) { nscoord space = 0; PRInt32 colX; if (aIsLeftToRight) { for (colX = aPrevColIndex + 1; aColIndex > colX; colX++) { PRBool isCollapsed = PR_FALSE; if (!aCheckVisibility) { space += aTableFrame.GetColumnWidth(colX); } else { nsTableColFrame* colFrame = aTableFrame.GetColFrame(colX); const nsStyleVisibility* colVis = colFrame->GetStyleVisibility(); PRBool collapseCol = (NS_STYLE_VISIBILITY_COLLAPSE == colVis->mVisible); nsIFrame* cgFrame = colFrame->GetParent(); const nsStyleVisibility* groupVis = cgFrame->GetStyleVisibility(); PRBool collapseGroup = (NS_STYLE_VISIBILITY_COLLAPSE == groupVis->mVisible); isCollapsed = collapseCol || collapseGroup; if (!isCollapsed) space += aTableFrame.GetColumnWidth(colX); } if (!isCollapsed && (aTableFrame.GetNumCellsOriginatingInCol(colX) > 0)) { space += aCellSpacingX; } } } else { PRInt32 lastCol = aColIndex + aColSpan - 1; for (colX = aPrevColIndex - 1; colX > lastCol; colX--) { PRBool isCollapsed = PR_FALSE; if (!aCheckVisibility) { space += aTableFrame.GetColumnWidth(colX); } else { nsTableColFrame* colFrame = aTableFrame.GetColFrame(colX); const nsStyleVisibility* colVis = colFrame->GetStyleVisibility(); PRBool collapseCol = (NS_STYLE_VISIBILITY_COLLAPSE == colVis->mVisible); nsIFrame* cgFrame = colFrame->GetParent(); const nsStyleVisibility* groupVis = cgFrame->GetStyleVisibility(); PRBool collapseGroup = (NS_STYLE_VISIBILITY_COLLAPSE == groupVis->mVisible); isCollapsed = collapseCol || collapseGroup; if (!isCollapsed) space += aTableFrame.GetColumnWidth(colX); } if (!isCollapsed && (aTableFrame.GetNumCellsOriginatingInCol(colX) > 0)) { space += aCellSpacingX; } } } return space; } // subtract the heights of aRow's prev in flows from the unpaginated height static nscoord CalcHeightFromUnpaginatedHeight(nsPresContext* aPresContext, nsTableRowFrame& aRow) { nscoord height = 0; nsTableRowFrame* firstInFlow = (nsTableRowFrame*)aRow.GetFirstInFlow(); if (!firstInFlow) ABORT1(0); if (firstInFlow->HasUnpaginatedHeight()) { height = firstInFlow->GetUnpaginatedHeight(aPresContext); for (nsIFrame* prevInFlow = aRow.GetPrevInFlow(); prevInFlow; prevInFlow = prevInFlow->GetPrevInFlow()) { height -= prevInFlow->GetSize().height; } } return PR_MAX(height, 0); } NS_METHOD nsTableRowFrame::ReflowChildren(nsPresContext* aPresContext, nsHTMLReflowMetrics& aDesiredSize, const nsHTMLReflowState& aReflowState, nsTableFrame& aTableFrame, nsReflowStatus& aStatus) { aStatus = NS_FRAME_COMPLETE; PRBool borderCollapse = (((nsTableFrame*)aTableFrame.GetFirstInFlow())->IsBorderCollapse()); // XXXldb Should we be checking constrained height instead? PRBool isPaginated = aPresContext->IsPaginated(); nsresult rv = NS_OK; nscoord cellSpacingX = aTableFrame.GetCellSpacingX(); PRInt32 cellColSpan = 1; // must be defined here so it's set properly for non-cell kids nsTableIterator iter(*this); // remember the col index of the previous cell to handle rowspans into this row PRInt32 firstPrevColIndex = (iter.IsLeftToRight()) ? -1 : aTableFrame.GetColCount(); PRInt32 prevColIndex = firstPrevColIndex; nscoord x = 0; // running total of children x offset // This computes the max of all cell heights nscoord cellMaxHeight = 0; // Reflow each of our existing cell frames for (nsIFrame* kidFrame = iter.First(); kidFrame; kidFrame = iter.Next()) { nsIAtom* frameType = kidFrame->GetType(); if (!IS_TABLE_CELL(frameType)) { // XXXldb nsCSSFrameConstructor needs to enforce this! NS_NOTREACHED("yikes, a non-row child"); // it's an unknown frame type, give it a generic reflow and ignore the results nsTableCellReflowState kidReflowState(aPresContext, aReflowState, kidFrame, nsSize(0,0), PR_FALSE); InitChildReflowState(*aPresContext, nsSize(0,0), PR_FALSE, kidReflowState); nsHTMLReflowMetrics desiredSize; nsReflowStatus status; ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState, 0, 0, 0, status); kidFrame->DidReflow(aPresContext, nsnull, NS_FRAME_REFLOW_FINISHED); continue; } nsTableCellFrame* cellFrame = static_cast(kidFrame); // See if we should only reflow the dirty child frames PRBool doReflowChild = PR_TRUE; if (!aReflowState.ShouldReflowAllKids() && !aTableFrame.IsGeometryDirty() && !NS_SUBTREE_DIRTY(kidFrame)) { if (!aReflowState.mFlags.mSpecialHeightReflow) doReflowChild = PR_FALSE; } else if ((NS_UNCONSTRAINEDSIZE != aReflowState.availableHeight)) { // We don't reflow a rowspan >1 cell here with a constrained height. // That happens in nsTableRowGroupFrame::SplitSpanningCells. if (aTableFrame.GetEffectiveRowSpan(*cellFrame) > 1) { doReflowChild = PR_FALSE; } } if (aReflowState.mFlags.mSpecialHeightReflow) { if (!isPaginated && !(cellFrame->GetStateBits() & NS_FRAME_CONTAINS_RELATIVE_HEIGHT)) { continue; } } PRInt32 cellColIndex; cellFrame->GetColIndex(cellColIndex); cellColSpan = aTableFrame.GetEffectiveColSpan(*cellFrame); // If the adjacent cell is in a prior row (because of a rowspan) add in the space if ((iter.IsLeftToRight() && (prevColIndex != (cellColIndex - 1))) || (!iter.IsLeftToRight() && (prevColIndex != cellColIndex + cellColSpan))) { x += GetSpaceBetween(prevColIndex, cellColIndex, cellColSpan, aTableFrame, cellSpacingX, iter.IsLeftToRight(), PR_FALSE); } // remember the rightmost (ltr) or leftmost (rtl) column this cell spans into prevColIndex = (iter.IsLeftToRight()) ? cellColIndex + (cellColSpan - 1) : cellColIndex; // Reflow the child frame nsRect kidRect = kidFrame->GetRect(); nsRect kidOverflowRect = kidFrame->GetOverflowRect(); PRBool firstReflow = (kidFrame->GetStateBits() & NS_FRAME_FIRST_REFLOW) != 0; if (doReflowChild) { // Calculate the available width for the table cell using the known column widths nscoord availColWidth, availCellWidth; CalcAvailWidth(aTableFrame, *cellFrame, cellSpacingX, availColWidth, availCellWidth); nsHTMLReflowMetrics desiredSize; // If the avail width 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? nsSize cellDesiredSize = cellFrame->GetDesiredSize(); if ((availCellWidth != cellFrame->GetPriorAvailWidth()) || (cellDesiredSize.width > cellFrame->GetPriorAvailWidth()) || (GetStateBits() & NS_FRAME_IS_DIRTY) || isPaginated || NS_SUBTREE_DIRTY(cellFrame) || // See if it needs a special reflow, or if it had one that we need to undo. (cellFrame->GetStateBits() & NS_FRAME_CONTAINS_RELATIVE_HEIGHT) || HasPctHeight()) { // Reflow the cell to fit the available width, height // XXX The old IR_ChildIsDirty code used availCellWidth here. nsSize kidAvailSize(availColWidth, aReflowState.availableHeight); // Reflow the child nsTableCellReflowState kidReflowState(aPresContext, aReflowState, kidFrame, kidAvailSize, PR_FALSE); InitChildReflowState(*aPresContext, kidAvailSize, borderCollapse, kidReflowState); nsReflowStatus status; rv = ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState, x, 0, NS_FRAME_INVALIDATE_ON_MOVE, 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 (NS_FRAME_IS_NOT_COMPLETE(status)) { aStatus = NS_FRAME_NOT_COMPLETE; } } else { if (x != kidRect.x) { kidFrame->InvalidateOverflowRect(); } desiredSize.width = cellDesiredSize.width; desiredSize.height = cellDesiredSize.height; if (cellFrame->GetStateBits() & NS_FRAME_OUTSIDE_CHILDREN) desiredSize.mOverflowArea = cellFrame->GetOverflowRect(); else desiredSize.mOverflowArea.SetRect(0, 0, cellDesiredSize.width, cellDesiredSize.height); // if we are in a floated table, our position is not yet established, so we cannot reposition our views // the containing glock will do this for us after positioning the table if (!aTableFrame.GetStyleDisplay()->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 == aReflowState.availableHeight) { if (!GetPrevInFlow()) { // Calculate the cell's actual size given its pass2 size. This function // takes into account the specified height (in the style), and any special // logic needed for backwards compatibility CalculateCellActualSize(kidFrame, desiredSize.width, desiredSize.height, availCellWidth); } // height may have changed, adjust descent to absorb any excess difference nscoord ascent; if (!kidFrame->GetFirstChild(nsnull)->GetFirstChild(nsnull)) ascent = desiredSize.height; else ascent = ((nsTableCellFrame *)kidFrame)->GetCellBaseline(); nscoord descent = desiredSize.height - ascent; UpdateHeight(desiredSize.height, ascent, descent, &aTableFrame, cellFrame); } else { cellMaxHeight = PR_MAX(cellMaxHeight, desiredSize.height); PRInt32 rowSpan = aTableFrame.GetEffectiveRowSpan((nsTableCellFrame&)*kidFrame); if (1 == rowSpan) { SetContentHeight(cellMaxHeight); } } // Place the child if (NS_UNCONSTRAINEDSIZE != availColWidth) { desiredSize.width = PR_MAX(availCellWidth, availColWidth); } FinishReflowChild(kidFrame, aPresContext, nsnull, desiredSize, x, 0, 0); nsTableFrame::InvalidateFrame(kidFrame, kidRect, kidOverflowRect, firstReflow); x += desiredSize.width; } else { if (kidRect.x != x) { // Invalidate the old position kidFrame->InvalidateOverflowRect(); // move to the new position kidFrame->SetPosition(nsPoint(x, kidRect.y)); nsTableFrame::RePositionViews(kidFrame); // invalidate the new position kidFrame->InvalidateOverflowRect(); } // we need to account for the cell's width even if it isn't reflowed x += kidRect.width; if (kidFrame->GetNextInFlow()) { aStatus = NS_FRAME_NOT_COMPLETE; } } ConsiderChildOverflow(aDesiredSize.mOverflowArea, kidFrame); x += cellSpacingX; } // just set our width to what was available. The table will calculate the width and not use our value. aDesiredSize.width = aReflowState.availableWidth; if (aReflowState.mFlags.mSpecialHeightReflow) { aDesiredSize.height = mRect.height; } else if (NS_UNCONSTRAINEDSIZE == aReflowState.availableHeight) { aDesiredSize.height = CalcHeight(aReflowState); if (GetPrevInFlow()) { nscoord height = CalcHeightFromUnpaginatedHeight(aPresContext, *this); aDesiredSize.height = PR_MAX(aDesiredSize.height, height); } else { if (isPaginated && HasStyleHeight()) { // set the unpaginated height so next in flows can try to honor it SetHasUnpaginatedHeight(PR_TRUE); SetUnpaginatedHeight(aPresContext, aDesiredSize.height); } if (isPaginated && HasUnpaginatedHeight()) { aDesiredSize.height = PR_MAX(aDesiredSize.height, GetUnpaginatedHeight(aPresContext)); } } } else { // constrained height, paginated // Compute the height we should have from style (subtracting the // height from our prev-in-flows from the style height) nscoord styleHeight = CalcHeightFromUnpaginatedHeight(aPresContext, *this); if (styleHeight > aReflowState.availableHeight) { styleHeight = aReflowState.availableHeight; NS_FRAME_SET_INCOMPLETE(aStatus); } aDesiredSize.height = PR_MAX(cellMaxHeight, styleHeight); } nsRect rowRect(0, 0, aDesiredSize.width, aDesiredSize.height); aDesiredSize.mOverflowArea.UnionRect(aDesiredSize.mOverflowArea, rowRect); FinishAndStoreOverflow(&aDesiredSize); return rv; } /** Layout the entire row. * This method stacks cells horizontally according to HTML 4.0 rules. */ NS_METHOD nsTableRowFrame::Reflow(nsPresContext* aPresContext, nsHTMLReflowMetrics& aDesiredSize, const nsHTMLReflowState& aReflowState, nsReflowStatus& aStatus) { DO_GLOBAL_REFLOW_COUNT("nsTableRowFrame"); DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus); nsresult rv = NS_OK; nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this); if (!tableFrame) return NS_ERROR_NULL_POINTER; const nsStyleVisibility* rowVis = GetStyleVisibility(); PRBool collapseRow = (NS_STYLE_VISIBILITY_COLLAPSE == rowVis->mVisible); if (collapseRow) { tableFrame->SetNeedToCollapse(PR_TRUE); } // see if a special height reflow needs to occur due to having a pct height nsTableFrame::CheckRequestSpecialHeightReflow(aReflowState); // See if we have a cell with specified/pct height InitHasCellWithStyleHeight(tableFrame); rv = ReflowChildren(aPresContext, aDesiredSize, aReflowState, *tableFrame, aStatus); // just set our width to what was available. The table will calculate the width and not use our value. aDesiredSize.width = aReflowState.availableWidth; // If our parent is in initial reflow, it'll handle invalidating our // entire overflow rect. if (!(GetParent()->GetStateBits() & NS_FRAME_FIRST_REFLOW)) { CheckInvalidateSizeChange(aPresContext, aDesiredSize, aReflowState); } NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize); return rv; } /** * 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 nsHTMLReflowState& aReflowState, PRBool aIsTopOfPage, nsTableCellFrame* aCellFrame, nscoord aAvailableHeight, nsReflowStatus& aStatus) { nsTableFrame* tableFrame = nsTableFrame::GetTableFrame(this); if (!tableFrame) ABORT1(NS_ERROR_NULL_POINTER); // Reflow the cell frame with the specified height. Use the existing width nsRect cellRect = aCellFrame->GetRect(); nsRect cellOverflowRect = aCellFrame->GetOverflowRect(); nsSize availSize(cellRect.width, aAvailableHeight); PRBool borderCollapse = ((nsTableFrame*)tableFrame->GetFirstInFlow())->IsBorderCollapse(); nsTableCellReflowState cellReflowState(aPresContext, aReflowState, aCellFrame, availSize, PR_FALSE); InitChildReflowState(*aPresContext, availSize, borderCollapse, cellReflowState); cellReflowState.mFlags.mIsTopOfPage = aIsTopOfPage; nsHTMLReflowMetrics desiredSize; ReflowChild(aCellFrame, aPresContext, desiredSize, cellReflowState, 0, 0, NS_FRAME_NO_MOVE_FRAME, aStatus); PRBool fullyComplete = NS_FRAME_IS_COMPLETE(aStatus) && !NS_FRAME_IS_TRUNCATED(aStatus); if (fullyComplete) { desiredSize.height = aAvailableHeight; } aCellFrame->SetSize(nsSize(cellRect.width, desiredSize.height)); // Note: VerticallyAlignChild 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 (fullyComplete) { aCellFrame->VerticallyAlignChild(mMaxCellAscent); } nsTableFrame::InvalidateFrame(aCellFrame, cellRect, cellOverflowRect, (aCellFrame->GetStateBits() & NS_FRAME_FIRST_REFLOW) != 0); aCellFrame->DidReflow(aPresContext, nsnull, NS_FRAME_REFLOW_FINISHED); return desiredSize.height; } nscoord nsTableRowFrame::CollapseRowIfNecessary(nscoord aRowOffset, nscoord aWidth, PRBool aCollapseGroup, PRBool& aDidCollapse) { const nsStyleVisibility* rowVis = GetStyleVisibility(); PRBool collapseRow = (NS_STYLE_VISIBILITY_COLLAPSE == rowVis->mVisible); nsTableFrame* tableFrame = static_cast(nsTableFrame::GetTableFrame(this)->GetFirstInFlow()); if (!tableFrame) return 0; if (collapseRow) { tableFrame->SetNeedToCollapse(PR_TRUE); } if (aRowOffset != 0) { // We're moving, so invalidate our old position InvalidateOverflowRect(); } nsRect rowRect = GetRect(); nsRect oldRect = rowRect; nsRect oldOverflowRect = GetOverflowRect(); rowRect.y -= aRowOffset; rowRect.width = aWidth; nsRect overflowArea(0, 0, 0, 0); nscoord shift = 0; nscoord cellSpacingX = tableFrame->GetCellSpacingX(); nscoord cellSpacingY = tableFrame->GetCellSpacingY(); if (aCollapseGroup || collapseRow) { nsTableCellFrame* cellFrame = GetFirstCell(); aDidCollapse = PR_TRUE; shift = rowRect.height + cellSpacingY; while (cellFrame) { nsRect cRect = cellFrame->GetRect(); // 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) { Invalidate(cRect); } cRect.height = 0; cellFrame->SetRect(cRect); cellFrame = cellFrame->GetNextCell(); } rowRect.height = 0; } else { // row is not collapsed nsTableIterator iter(*this); // remember the col index of the previous cell to handle rowspans into this // row PRInt32 firstPrevColIndex = (iter.IsLeftToRight()) ? -1 : tableFrame->GetColCount(); PRInt32 prevColIndex = firstPrevColIndex; nscoord x = 0; // running total of children x offset PRInt32 colIncrement = iter.IsLeftToRight() ? 1 : -1; //nscoord x = cellSpacingX; nsIFrame* kidFrame = iter.First(); while (kidFrame) { nsIAtom* frameType = kidFrame->GetType(); if (IS_TABLE_CELL(frameType)) { nsTableCellFrame* cellFrame = (nsTableCellFrame*)kidFrame; PRInt32 cellColIndex; cellFrame->GetColIndex(cellColIndex); PRInt32 cellColSpan = tableFrame->GetEffectiveColSpan(*cellFrame); // If the adjacent cell is in a prior row (because of a rowspan) add in // the space if ((iter.IsLeftToRight() && (prevColIndex != (cellColIndex - 1))) || (!iter.IsLeftToRight() && (prevColIndex != cellColIndex + cellColSpan))) { x += GetSpaceBetween(prevColIndex, cellColIndex, cellColSpan, *tableFrame, cellSpacingX, iter.IsLeftToRight(), PR_TRUE); } nsRect cRect(x, 0, 0, rowRect.height); // remember the rightmost (ltr) or leftmost (rtl) column this cell // spans into prevColIndex = (iter.IsLeftToRight()) ? cellColIndex + (cellColSpan - 1) : cellColIndex; PRInt32 startIndex = (iter.IsLeftToRight()) ? cellColIndex : cellColIndex + (cellColSpan - 1); PRInt32 actualColSpan = cellColSpan; PRBool isVisible = PR_FALSE; for (PRInt32 colX = startIndex; actualColSpan > 0; colX += colIncrement, actualColSpan--) { nsTableColFrame* colFrame = tableFrame->GetColFrame(colX); const nsStyleVisibility* colVis = colFrame->GetStyleVisibility(); PRBool collapseCol = (NS_STYLE_VISIBILITY_COLLAPSE == colVis->mVisible); nsIFrame* cgFrame = colFrame->GetParent(); const nsStyleVisibility* groupVis = cgFrame->GetStyleVisibility(); PRBool collapseGroup = (NS_STYLE_VISIBILITY_COLLAPSE == groupVis->mVisible); PRBool isCollapsed = collapseCol || collapseGroup; if (isCollapsed) { tableFrame->SetNeedToCollapse(PR_TRUE); } else { cRect.width += tableFrame->GetColumnWidth(colX); isVisible = PR_TRUE; } if (!isCollapsed && (actualColSpan > 1)) { nsTableColFrame* nextColFrame = tableFrame->GetColFrame(colX + colIncrement); const nsStyleVisibility* nextColVis = nextColFrame->GetStyleVisibility(); if ( (NS_STYLE_VISIBILITY_COLLAPSE != nextColVis->mVisible) && (tableFrame->GetNumCellsOriginatingInCol(colX + colIncrement) > 0)) { cRect.width += cellSpacingX; } } } x += cRect.width; if (isVisible) x += cellSpacingX; PRInt32 actualRowSpan = tableFrame->GetEffectiveRowSpan(*cellFrame); nsTableRowFrame* rowFrame = GetNextRow(); for (actualRowSpan--; actualRowSpan > 0 && rowFrame; actualRowSpan--) { const nsStyleVisibility* nextRowVis = rowFrame->GetStyleVisibility(); PRBool collapseNextRow = (NS_STYLE_VISIBILITY_COLLAPSE == nextRowVis->mVisible); if (!collapseNextRow) { nsRect nextRect = rowFrame->GetRect(); cRect.height += nextRect.height + cellSpacingY; } rowFrame = rowFrame->GetNextRow(); } nsRect oldCellRect = cellFrame->GetRect(); nsRect oldCellOverflowRect = cellFrame->GetOverflowRect(); if (aRowOffset == 0 && cRect.TopLeft() != oldCellRect.TopLeft()) { // We're moving the cell. Invalidate the old overflow area cellFrame->InvalidateOverflowRect(); } cellFrame->SetRect(cRect); // XXXbz This looks completely bogus in the cases when we didn't // collapse the cell! nsRect cellOverflow = nsRect(0, 0, cRect.width, cRect.height); cellFrame->FinishAndStoreOverflow(&cellOverflow, nsSize(cRect.width, cRect.height)); nsTableFrame::RePositionViews(cellFrame); ConsiderChildOverflow(overflowArea, cellFrame); if (aRowOffset == 0) { nsTableFrame::InvalidateFrame(cellFrame, oldCellRect, oldCellOverflowRect, PR_FALSE); } } kidFrame = iter.Next(); // Get the next child } } SetRect(rowRect); overflowArea.UnionRect(nsRect(0,0,rowRect.width, rowRect.height), overflowArea); FinishAndStoreOverflow(&overflowArea, nsSize(rowRect.width, rowRect.height)); nsTableFrame::RePositionViews(this); nsTableFrame::InvalidateFrame(this, oldRect, oldOverflowRect, PR_FALSE); return shift; } /** * These 3 functions are called by the row group frame's SplitRowGroup() code when * it creates a continuing cell frame and wants to insert it into the row's child list */ void nsTableRowFrame::InsertCellFrame(nsTableCellFrame* aFrame, nsTableCellFrame* aPrevSibling) { mFrames.InsertFrame(nsnull, aPrevSibling, aFrame); aFrame->SetParent(this); } void nsTableRowFrame::InsertCellFrame(nsTableCellFrame* aFrame, PRInt32 aColIndex) { // Find the cell frame where col index < aColIndex nsTableCellFrame* priorCell = nsnull; for (nsIFrame* child = mFrames.FirstChild(); child; child = child->GetNextSibling()) { if (!IS_TABLE_CELL(child->GetType())) { nsTableCellFrame* cellFrame = (nsTableCellFrame*)child; PRInt32 colIndex; cellFrame->GetColIndex(colIndex); if (colIndex < aColIndex) { priorCell = cellFrame; } else break; } } InsertCellFrame(aFrame, priorCell); } void nsTableRowFrame::RemoveCellFrame(nsTableCellFrame* aFrame) { if (!mFrames.RemoveFrame(aFrame)) NS_ASSERTION(PR_FALSE, "frame not in list"); } nsIAtom* nsTableRowFrame::GetType() const { return nsGkAtoms::tableRowFrame; } nsTableRowFrame* nsTableRowFrame::GetNextRow() const { nsIFrame* childFrame = GetNextSibling(); while (childFrame) { if (nsGkAtoms::tableRowFrame == childFrame->GetType()) { NS_ASSERTION(NS_STYLE_DISPLAY_TABLE_ROW == childFrame->GetStyleDisplay()->mDisplay, "wrong display type on rowframe"); return (nsTableRowFrame*)childFrame; } childFrame = childFrame->GetNextSibling(); } return nsnull; } void nsTableRowFrame::SetUnpaginatedHeight(nsPresContext* aPresContext, nscoord aValue) { NS_ASSERTION(!GetPrevInFlow(), "program error"); // Get the property nscoord* value = (nscoord*)nsTableFrame::GetProperty(this, nsGkAtoms::rowUnpaginatedHeightProperty, PR_TRUE); if (value) { *value = aValue; } } nscoord nsTableRowFrame::GetUnpaginatedHeight(nsPresContext* aPresContext) { // See if the property is set nscoord* value = (nscoord*)nsTableFrame::GetProperty(GetFirstInFlow(), nsGkAtoms::rowUnpaginatedHeightProperty); if (value) return *value; else return 0; } void nsTableRowFrame::SetContinuousBCBorderWidth(PRUint8 aForSide, BCPixelSize aPixelValue) { switch (aForSide) { case NS_SIDE_RIGHT: mRightContBorderWidth = aPixelValue; return; case NS_SIDE_TOP: mTopContBorderWidth = aPixelValue; return; case NS_SIDE_LEFT: mLeftContBorderWidth = aPixelValue; return; default: NS_ERROR("invalid NS_SIDE arg"); } } /** * Sets the NS_ROW_HAS_CELL_WITH_STYLE_HEIGHT bit to indicate whether * this row has any cells that have non-auto-height. (Row-spanning * cells are ignored.) */ void nsTableRowFrame::InitHasCellWithStyleHeight(nsTableFrame* aTableFrame) { nsTableIterator iter(*this); for (nsIFrame* kidFrame = iter.First(); kidFrame; kidFrame = iter.Next()) { nsIAtom* frameType = kidFrame->GetType(); if (!IS_TABLE_CELL(frameType)) { NS_NOTREACHED("Table row has a non-cell child."); continue; } nsTableCellFrame* cellFrame = static_cast(kidFrame); // Ignore row-spanning cells if (aTableFrame->GetEffectiveRowSpan(*cellFrame) == 1 && cellFrame->GetStylePosition()->mHeight.GetUnit() != eStyleUnit_Auto) { AddStateBits(NS_ROW_HAS_CELL_WITH_STYLE_HEIGHT); return; } } RemoveStateBits(NS_ROW_HAS_CELL_WITH_STYLE_HEIGHT); } /* ----- global methods ----- */ nsIFrame* NS_NewTableRowFrame(nsIPresShell* aPresShell, nsStyleContext* aContext) { return new (aPresShell) nsTableRowFrame(aContext); } #ifdef DEBUG NS_IMETHODIMP nsTableRowFrame::GetFrameName(nsAString& aResult) const { return MakeFrameName(NS_LITERAL_STRING("TableRow"), aResult); } #endif