/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- * * The contents of this file are subject to the Netscape 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/NPL/ * * 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 Netscape are * Copyright (C) 1998 Netscape Communications Corporation. All * Rights Reserved. * * Contributor(s): * Pierre Phaneuf */ #include "nsTableFrame.h" #include "nsTableColFrame.h" #include "nsTableCellFrame.h" #include "nsTableFrame.h" #include "nsIReflowCommand.h" #include "nsIStyleContext.h" #include "nsIMutableStyleContext.h" #include "nsStyleConsts.h" #include "nsIPresContext.h" #include "nsIRenderingContext.h" #include "nsCSSRendering.h" #include "nsIContent.h" #include "nsIHTMLContent.h" #include "nsHTMLIIDs.h" #include "nsHTMLParts.h" #include "nsHTMLValue.h" #include "nsHTMLAtoms.h" #include "nsHTMLIIDs.h" #include "nsVoidArray.h" #include "nsIView.h" #include "nsStyleUtil.h" #include "nsLayoutAtoms.h" #include "nsIFrameManager.h" #include "nsIPresShell.h" #include "nsCOMPtr.h" #include "nsIHTMLTableCellElement.h" #include "nsIDOMHTMLTableCellElement.h" #include "nsIMutableAccessible.h" #include "nsIAccessibilityService.h" #include "nsIServiceManager.h" #include "nsIDOMNode.h" //TABLECELL SELECTION #include "nsIFrameSelection.h" #include "nsILookAndFeel.h" nsTableCellFrame::nsTableCellFrame() { mColIndex = 0; mPriorAvailWidth = 0; #ifdef DEBUG_TABLE_REFLOW_TIMING mTimer = new nsReflowTimer(this); mBlockTimer = new nsReflowTimer(this); #endif } nsTableCellFrame::~nsTableCellFrame() { #ifdef DEBUG_TABLE_REFLOW_TIMING nsTableFrame::DebugReflowDone(this); #endif } NS_IMETHODIMP nsTableCellFrame::Init(nsIPresContext* aPresContext, nsIContent* aContent, nsIFrame* aParent, nsIStyleContext* aContext, nsIFrame* aPrevInFlow) { nsresult rv; // Let the base class do its initialization rv = nsHTMLContainerFrame::Init(aPresContext, aContent, aParent, aContext, aPrevInFlow); if (aPrevInFlow) { // Set the column index nsTableCellFrame* cellFrame = (nsTableCellFrame*)aPrevInFlow; PRInt32 colIndex; cellFrame->GetColIndex(colIndex); InitCellFrame(colIndex); } return rv; } nsresult nsTableCellFrame::GetRowIndex(PRInt32 &aRowIndex) const { nsresult result; nsTableRowFrame * row; GetParent((nsIFrame **)&row); if (row) { aRowIndex = row->GetRowIndex(); result = NS_OK; } else { aRowIndex = 0; result = NS_ERROR_NOT_INITIALIZED; } return result; } nsresult nsTableCellFrame::GetColIndex(PRInt32 &aColIndex) const { if (mPrevInFlow) { return ((nsTableCellFrame*)GetFirstInFlow())->GetColIndex(aColIndex); } else { aColIndex = mColIndex; return NS_OK; } } NS_IMETHODIMP nsTableCellFrame::AttributeChanged(nsIPresContext* aPresContext, nsIContent* aChild, PRInt32 aNameSpaceID, nsIAtom* aAttribute, PRInt32 aHint) { // let the table frame decide what to do nsTableFrame* tableFrame = nsnull; nsresult rv = nsTableFrame::GetTableFrame(this, tableFrame); if ((NS_SUCCEEDED(rv)) && (tableFrame)) { tableFrame->AttributeChangedFor(aPresContext, this, aChild, aAttribute); } return NS_OK; } void nsTableCellFrame::SetPass1MaxElementSize(nscoord aMaxWidth, const nsSize& aMaxElementSize) { mPass1MaxElementSize.height = aMaxElementSize.height; nscoord maxElemWidth = aMaxElementSize.width; // the max elem width needs to take into account a cell that is NOWRAP const nsStyleText* styleText; GetStyleData(eStyleStruct_Text, (const nsStyleStruct*&) styleText); if (NS_STYLE_WHITESPACE_NOWRAP == styleText->mWhiteSpace) { const nsStylePosition* stylePosition; GetStyleData(eStyleStruct_Position, ((const nsStyleStruct *&)stylePosition)); if (stylePosition->mWidth.GetUnit() == eStyleUnit_Coord) { nscoord styleWidth = stylePosition->mWidth.GetCoordValue(); // Nav and IE only honor the nowrap up to the style width, if present maxElemWidth = PR_MAX(maxElemWidth, styleWidth); } else { maxElemWidth = PR_MAX(maxElemWidth, aMaxWidth); } } mPass1MaxElementSize.width = maxElemWidth; } NS_IMETHODIMP nsTableCellFrame::AppendFrames(nsIPresContext* aPresContext, nsIPresShell& aPresShell, nsIAtom* aListName, nsIFrame* aFrameList) { NS_PRECONDITION(PR_FALSE, "unsupported operation"); return NS_ERROR_NOT_IMPLEMENTED; } NS_IMETHODIMP nsTableCellFrame::InsertFrames(nsIPresContext* aPresContext, nsIPresShell& aPresShell, nsIAtom* aListName, nsIFrame* aPrevFrame, nsIFrame* aFrameList) { NS_PRECONDITION(PR_FALSE, "unsupported operation"); return NS_ERROR_NOT_IMPLEMENTED; } NS_IMETHODIMP nsTableCellFrame::RemoveFrame(nsIPresContext* aPresContext, nsIPresShell& aPresShell, nsIAtom* aListName, nsIFrame* aOldFrame) { NS_PRECONDITION(PR_FALSE, "unsupported operation"); return NS_ERROR_NOT_IMPLEMENTED; } void nsTableCellFrame::InitCellFrame(PRInt32 aColIndex) { nsTableFrame* tableFrame=nsnull; // I should be checking my own style context, but border-collapse isn't inheriting correctly nsresult rv = nsTableFrame::GetTableFrame(this, tableFrame); if ((NS_SUCCEEDED(rv)) && tableFrame) { SetColIndex(aColIndex); } } nsresult nsTableCellFrame::SetColIndex(PRInt32 aColIndex) { mColIndex = aColIndex; // for style context optimization, set the content's column index if possible. // this can only be done if we really have an nsTableCell. // other tags mapped to table cell display won't benefit from this optimization // see nsHTMLStyleSheet::RulesMatching //nsIContent* cell; //kidFrame->GetContent(&cell); nsCOMPtr cell; nsresult rv = GetContent(getter_AddRefs(cell)); if (NS_FAILED(rv) || !cell) return rv; nsIHTMLTableCellElement* cellContent = nsnull; rv = cell->QueryInterface(NS_GET_IID(nsIHTMLTableCellElement), (void **)&cellContent); // cellContent: REFCNT++ if (cellContent && NS_SUCCEEDED(rv)) { // it's a table cell cellContent->SetColIndex(aColIndex); NS_RELEASE(cellContent); } return rv; } //ASSURE DIFFERENT COLORS for selection inline nscolor EnsureDifferentColors(nscolor colorA, nscolor colorB) { if (colorA == colorB) { nscolor res; res = NS_RGB(NS_GET_R(colorA) ^ 0xff, NS_GET_G(colorA) ^ 0xff, NS_GET_B(colorA) ^ 0xff); return res; } return colorA; } #ifdef OLD_TABLE_SELECTION const nsStyleColor * nsTableCellFrame::GetColorStyleFromSelection(const nsStyleColor *aStyleColor) { PRInt16 displaySelection; const nsStyleColor *retval = aStyleColor; displaySelection = DisplaySelection(aPresContext); if (displaySelection) { nsFrameState frameState; PRBool isSelected; GetFrameState(&frameState); isSelected = (frameState & NS_FRAME_SELECTED_CONTENT) == NS_FRAME_SELECTED_CONTENT; if (isSelected) { nsCOMPtr shell; nsresult result = aPresContext->GetShell(getter_AddRefs(shell)); if (NS_FAILED(result)) return result; nsCOMPtr frameSelection; result = shell->GetFrameSelection(getter_AddRefs(frameSelection)); if (NS_SUCCEEDED(result)) { PRBool tableCellSelectionMode; result = frameSelection->GetTableCellSelection(&tableCellSelectionMode); if (NS_SUCCEEDED(result) && tableCellSelectionMode) { frameSelection->GetTableCellSelectionStyleColor(&retval); if(displaySelection == nsISelectionController::SELECTION_DISABLED) { ((nsStyleColor *)retval)->mBackgroundColor = NS_RGB(176,176,176);// disabled color } else { nsILookAndFeel* look = nsnull; if (NS_SUCCEEDED(aPresContext->GetLookAndFeel(&look)) && look) { look->GetColor(nsILookAndFeel::eColor_TextSelectBackground, ((nsStyleColor *)retval)->mBackgroundColor); NS_RELEASE(look); } } } } } } return retval; } #else //OLD_TABLE_SELECTION nsresult nsTableCellFrame::DecorateForSelection(nsIPresContext* aPresContext, nsIRenderingContext& aRenderingContext, const nsStyleColor *aStyleColor) { PRInt16 displaySelection; displaySelection = DisplaySelection(aPresContext); if (displaySelection) { nsFrameState frameState; PRBool isSelected; GetFrameState(&frameState); isSelected = (frameState & NS_FRAME_SELECTED_CONTENT) == NS_FRAME_SELECTED_CONTENT; if (isSelected) { nsCOMPtr shell; nsresult result = aPresContext->GetShell(getter_AddRefs(shell)); if (NS_FAILED(result)) return result; nsCOMPtr frameSelection; result = shell->GetFrameSelection(getter_AddRefs(frameSelection)); if (NS_SUCCEEDED(result)) { PRBool tableCellSelectionMode; result = frameSelection->GetTableCellSelection(&tableCellSelectionMode); if (NS_SUCCEEDED(result) && tableCellSelectionMode) { nscolor bordercolor; if(displaySelection == nsISelectionController::SELECTION_DISABLED) { bordercolor = NS_RGB(176,176,176);// disabled color } else { nsILookAndFeel* look = nsnull; if (NS_SUCCEEDED(aPresContext->GetLookAndFeel(&look)) && look) { look->GetColor(nsILookAndFeel::eColor_TextSelectBackground, bordercolor); NS_RELEASE(look); } } float t2pfloat; if (NS_SUCCEEDED(aPresContext->GetPixelsToTwips(&t2pfloat))) { PRInt16 t2p = (PRInt16)t2pfloat; if ((mRect.width >(3*t2p)) && (mRect.height > (3*t2p))) { //compare bordercolor to ((nsStyleColor *)myColor)->mBackgroundColor) bordercolor = EnsureDifferentColors(bordercolor, aStyleColor->mBackgroundColor); //outerrounded aRenderingContext.SetColor(bordercolor); aRenderingContext.DrawLine(t2p, 0, mRect.width, 0); aRenderingContext.DrawLine(0, t2p, 0, mRect.height); aRenderingContext.DrawLine(t2p, mRect.height, mRect.width, mRect.height); aRenderingContext.DrawLine(mRect.width, t2p, mRect.width, mRect.height); //middle aRenderingContext.DrawRect(t2p, t2p, mRect.width-t2p, mRect.height-t2p); //shading aRenderingContext.DrawLine(2*t2p, mRect.height-2*t2p, mRect.width-t2p, mRect.height- (2*t2p)); aRenderingContext.DrawLine(mRect.width - (2*t2p), 2*t2p, mRect.width - (2*t2p), mRect.height-t2p); } } } } } } return NS_OK; } #endif //OLD_TABLE_SELECTION NS_METHOD nsTableCellFrame::Paint(nsIPresContext* aPresContext, nsIRenderingContext& aRenderingContext, const nsRect& aDirtyRect, nsFramePaintLayer aWhichLayer) { PRBool isVisible; if (NS_SUCCEEDED(IsVisibleForPainting(aPresContext, aRenderingContext, PR_FALSE, &isVisible)) && !isVisible) { return NS_OK; } const nsStyleDisplay* disp = (const nsStyleDisplay*)mStyleContext->GetStyleData(eStyleStruct_Display); if (NS_FRAME_PAINT_LAYER_BACKGROUND == aWhichLayer) { if (disp->IsVisibleOrCollapsed()) { const nsStyleColor* myColor = (const nsStyleColor*)mStyleContext->GetStyleData(eStyleStruct_Color); #ifdef OLD_TABLE_SELECTION myColor = GetColorStyleFromSelection(myColor); #endif const nsStyleBorder* myBorder = (const nsStyleBorder*)mStyleContext->GetStyleData(eStyleStruct_Border); NS_ASSERTION(nsnull!=myColor, "bad style color"); NS_ASSERTION(nsnull!=myBorder, "bad style spacing"); const nsStyleTable* cellTableStyle; GetStyleData(eStyleStruct_Table, ((const nsStyleStruct *&)cellTableStyle)); nsRect rect(0, 0, mRect.width, mRect.height); // bug #8113 // as of the CSS2-errata http://www.w3.org/Style/css2-updates/REC-CSS2-19980512-errata.html // always draw the background and border except when the cell is empty and 'empty-cells: hide' is set if ( !(GetContentEmpty() && NS_STYLE_TABLE_EMPTY_CELLS_HIDE == cellTableStyle->mEmptyCells) ) { nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, this, aDirtyRect, rect, *myColor, *myBorder, 0, 0); PRIntn skipSides = GetSkipSides(); nsTableFrame* tableFrame = nsnull; // I should be checking my own style context, but border-collapse isn't inheriting correctly nsresult rv = nsTableFrame::GetTableFrame(this, tableFrame); if ((NS_SUCCEEDED(rv)) && tableFrame) { const nsStyleTable* tableStyle; tableFrame->GetStyleData(eStyleStruct_Table, ((const nsStyleStruct *&)tableStyle)); if (NS_STYLE_BORDER_SEPARATE == tableFrame->GetBorderCollapseStyle()) { nsCSSRendering::PaintBorder(aPresContext, aRenderingContext, this, aDirtyRect, rect, *myBorder, mStyleContext, skipSides); } } } #ifndef OLD_TABLE_SELECTION DecorateForSelection(aPresContext, aRenderingContext,myColor); //ignore return value #endif //OLD_TABLE_SELECTION } } #ifdef DEBUG // for debug... if ((NS_FRAME_PAINT_LAYER_DEBUG == aWhichLayer) && GetShowFrameBorders()) { aRenderingContext.SetColor(NS_RGB(0, 0, 128)); aRenderingContext.DrawRect(0, 0, mRect.width, mRect.height); } #endif // if the cell originates in a row and/or col that is collapsed, the // bottom and/or right portion of the cell is painted by translating // the rendering context. PRBool clipState; nsPoint offset; GetCollapseOffset(aPresContext, offset); if ((0 != offset.x) || (0 != offset.y)) { aRenderingContext.PushState(); aRenderingContext.Translate(offset.x, offset.y); aRenderingContext.SetClipRect(nsRect(-offset.x, -offset.y, mRect.width, mRect.height), nsClipCombine_kIntersect, clipState); } else{ if (NS_STYLE_OVERFLOW_HIDDEN == disp->mOverflow) { const nsStylePadding* myPadding = (const nsStylePadding*)mStyleContext->GetStyleData(eStyleStruct_Padding); nsMargin padding; nsRect clipRect(0, 0, mRect.width, mRect.height); if (myPadding->GetPadding(padding)) { clipRect.Deflate(padding); } aRenderingContext.PushState(); aRenderingContext.SetClipRect(clipRect,nsClipCombine_kIntersect, clipState); } } PaintChildren(aPresContext, aRenderingContext, aDirtyRect, aWhichLayer); if ((0 != offset.x) || (0 != offset.y)) { aRenderingContext.PopState(clipState); } else { if (NS_STYLE_OVERFLOW_HIDDEN == disp->mOverflow) { aRenderingContext.PopState(clipState); } } DO_GLOBAL_REFLOW_COUNT_DSP_J("nsTableCellFrame", &aRenderingContext, 0); return NS_OK; /*nsFrame::Paint(aPresContext, aRenderingContext, aDirtyRect, aWhichLayer);*/ } NS_IMETHODIMP nsTableCellFrame::GetFrameForPoint(nsIPresContext* aPresContext, const nsPoint& aPoint, nsFramePaintLayer aWhichLayer, nsIFrame** aFrame) { // this should act like a block, so we need to override return GetFrameForPointUsing(aPresContext, aPoint, nsnull, aWhichLayer, (aWhichLayer == NS_FRAME_PAINT_LAYER_BACKGROUND), aFrame); } //null range means the whole thing NS_IMETHODIMP nsTableCellFrame::SetSelected(nsIPresContext* aPresContext, nsIDOMRange* aRange, PRBool aSelected, nsSpread aSpread) { //traverse through children unselect tables #if 0 if ((aSpread == eSpreadDown)){ nsIFrame* kid; FirstChild(nsnull, &kid); while (nsnull != kid) { kid->SetSelected(nsnull,aSelected,eSpreadDown); kid->GetNextSibling(&kid); } } //return nsFrame::SetSelected(aRange,aSelected,eSpreadNone); #endif // Must call base class to set mSelected state and trigger repaint of frame // Note that in current version, aRange and aSpread are ignored, // only this frame is considered nsFrame::SetSelected(aPresContext, aRange, aSelected, aSpread); nsCOMPtr shell; nsresult result = aPresContext->GetShell(getter_AddRefs(shell)); if (NS_FAILED(result)) return result; nsCOMPtr frameSelection; result = shell->GetFrameSelection(getter_AddRefs(frameSelection)); if (NS_SUCCEEDED(result) && frameSelection) { PRBool tableCellSelectionMode; result = frameSelection->GetTableCellSelection(&tableCellSelectionMode); if (NS_SUCCEEDED(result) && tableCellSelectionMode) { nsRect frameRect; GetRect(frameRect); nsRect rect(0, 0, frameRect.width, frameRect.height); Invalidate(aPresContext, rect, PR_FALSE); } } return NS_OK; } PRIntn nsTableCellFrame::GetSkipSides() const { PRIntn skip = 0; if (nsnull != mPrevInFlow) { skip |= 1 << NS_SIDE_TOP; } if (nsnull != mNextInFlow) { skip |= 1 << NS_SIDE_BOTTOM; } return skip; } PRBool nsTableCellFrame::ParentDisablesSelection() const //override default behavior { PRBool returnval; if (NS_FAILED(GetSelected(&returnval))) return PR_FALSE; if (returnval) return PR_TRUE; return nsFrame::ParentDisablesSelection(); } // Align the cell's child frame within the cell void nsTableCellFrame::VerticallyAlignChild(nsIPresContext* aPresContext, const nsHTMLReflowState& aReflowState, nscoord aMaxAscent) { const nsStyleText* textStyle = (const nsStyleText*)mStyleContext->GetStyleData(eStyleStruct_Text); /* XXX: remove tableFrame when border-collapse inherits */ nsTableFrame* tableFrame = nsnull; (void) nsTableFrame::GetTableFrame(this, tableFrame); nsMargin borderPadding; GetCellBorder (borderPadding, tableFrame); nsMargin padding = nsTableFrame::GetPadding(aReflowState, this); borderPadding += padding; nscoord topInset = borderPadding.top; nscoord bottomInset = borderPadding.bottom; // As per bug 10207, we map 'sub', 'super', 'text-top', 'text-bottom', // length and percentage values to 'baseline' // XXX It seems that we don't get to see length and percentage values here // because the Style System has already fixed the error and mapped them // to whatever is inherited from the parent, i.e, 'middle' in most cases. PRUint8 verticalAlignFlags = NS_STYLE_VERTICAL_ALIGN_BASELINE; if (textStyle->mVerticalAlign.GetUnit() == eStyleUnit_Enumerated) { verticalAlignFlags = textStyle->mVerticalAlign.GetIntValue(); if (verticalAlignFlags != NS_STYLE_VERTICAL_ALIGN_TOP && verticalAlignFlags != NS_STYLE_VERTICAL_ALIGN_MIDDLE && verticalAlignFlags != NS_STYLE_VERTICAL_ALIGN_BOTTOM) { verticalAlignFlags = NS_STYLE_VERTICAL_ALIGN_BASELINE; } } nscoord height = mRect.height; nsRect kidRect; nsIFrame* firstKid = mFrames.FirstChild(); firstKid->GetRect(kidRect); nscoord childHeight = kidRect.height; // Vertically align the child nscoord kidYTop = 0; switch (verticalAlignFlags) { case NS_STYLE_VERTICAL_ALIGN_BASELINE: // Align the baselines of the child frame with the baselines of // other children in the same row which have 'vertical-align: baseline' kidYTop = topInset + aMaxAscent - GetDesiredAscent(); break; case NS_STYLE_VERTICAL_ALIGN_TOP: // Align the top of the child frame with the top of the content area, kidYTop = topInset; break; case NS_STYLE_VERTICAL_ALIGN_BOTTOM: // Align the bottom of the child frame with the bottom of the content area, kidYTop = height - childHeight - bottomInset; break; default: case NS_STYLE_VERTICAL_ALIGN_MIDDLE: // Align the middle of the child frame with the middle of the content area, kidYTop = (height - childHeight - bottomInset + topInset) / 2; } firstKid->MoveTo(aPresContext, kidRect.x, kidYTop); if (kidYTop != kidRect.y) { // Make sure any child views are correctly positioned. We know the inner table // cell won't have a view nsContainerFrame::PositionChildViews(aPresContext, firstKid); } } // As per bug 10207, we map 'sub', 'super', 'text-top', 'text-bottom', // length and percentage values to 'baseline' // XXX It seems that we don't get to see length and percentage values here // because the Style System has already fixed the error and mapped them // to whatever is inherited from the parent, i.e, 'middle' in most cases. PRBool nsTableCellFrame::HasVerticalAlignBaseline() { const nsStyleText* textStyle; GetStyleData(eStyleStruct_Text, (const nsStyleStruct*&)textStyle); if (textStyle->mVerticalAlign.GetUnit() == eStyleUnit_Enumerated) { PRUint8 verticalAlignFlags = textStyle->mVerticalAlign.GetIntValue(); if (verticalAlignFlags == NS_STYLE_VERTICAL_ALIGN_TOP || verticalAlignFlags == NS_STYLE_VERTICAL_ALIGN_MIDDLE || verticalAlignFlags == NS_STYLE_VERTICAL_ALIGN_BOTTOM) { return PR_FALSE; } } return PR_TRUE; } PRInt32 nsTableCellFrame::GetRowSpan() { PRInt32 rowSpan=1; nsIHTMLContent *hc=nsnull; nsresult rv = mContent->QueryInterface(kIHTMLContentIID, (void**) &hc); if (NS_OK==rv) { nsHTMLValue val; hc->GetHTMLAttribute(nsHTMLAtoms::rowspan, val); if (eHTMLUnit_Integer == val.GetUnit()) { rowSpan=val.GetIntValue(); } NS_RELEASE(hc); } return rowSpan; } PRInt32 nsTableCellFrame::GetColSpan() { PRInt32 colSpan=1; nsIHTMLContent *hc=nsnull; nsresult rv = mContent->QueryInterface(kIHTMLContentIID, (void**) &hc); if (NS_OK==rv) { nsHTMLValue val; hc->GetHTMLAttribute(nsHTMLAtoms::colspan, val); if (eHTMLUnit_Integer == val.GetUnit()) { colSpan=val.GetIntValue(); } NS_RELEASE(hc); } return colSpan; } #define PROBABLY_TOO_LARGE 1000000 static void DebugCheckChildSize(nsIFrame* aChild, nsHTMLReflowMetrics& aMet, nsSize& aAvailSize, PRBool aIsPass2Reflow) { if (aIsPass2Reflow) { if ((aMet.width < 0) || (aMet.width > PROBABLY_TOO_LARGE)) { printf("WARNING: cell content %p has large width %d \n", aChild, aMet.width); } } if (aMet.maxElementSize) { nscoord tmp = aMet.maxElementSize->width; if ((tmp < 0) || (tmp > PROBABLY_TOO_LARGE)) { printf("WARNING: cell content %p has large max element width %d \n", aChild, tmp); } } } /** */ NS_METHOD nsTableCellFrame::Reflow(nsIPresContext* aPresContext, nsHTMLReflowMetrics& aDesiredSize, const nsHTMLReflowState& aReflowState, nsReflowStatus& aStatus) { DO_GLOBAL_REFLOW_COUNT("nsTableCellFrame", aReflowState.reason); #if defined DEBUG_TABLE_REFLOW | DEBUG_TABLE_REFLOW_TIMING nsTableFrame::DebugReflow(this, (nsHTMLReflowState&)aReflowState); #endif nsresult rv = NS_OK; // this should probably be cached somewhere nsCompatibility compatMode; aPresContext->GetCompatibilityMode(&compatMode); // Initialize out parameter if (nsnull != aDesiredSize.maxElementSize) { aDesiredSize.maxElementSize->width = 0; aDesiredSize.maxElementSize->height = 0; } aStatus = NS_FRAME_COMPLETE; nsSize availSize(aReflowState.availableWidth, aReflowState.availableHeight); nsSize maxElementSize; nsSize* pMaxElementSize = aDesiredSize.maxElementSize; if (NS_UNCONSTRAINEDSIZE==aReflowState.availableWidth) pMaxElementSize = &maxElementSize; /* XXX: remove tableFrame when border-collapse inherits */ nsTableFrame* tableFrame=nsnull; rv = nsTableFrame::GetTableFrame(this, tableFrame); nsMargin borderPadding = aReflowState.mComputedPadding; nsMargin border; GetCellBorder(border, tableFrame); if ((NS_UNCONSTRAINEDSIZE == availSize.width) || !GetContentEmpty()) { borderPadding += border; } nscoord topInset = borderPadding.top; nscoord rightInset = borderPadding.right; nscoord bottomInset = borderPadding.bottom; nscoord leftInset = borderPadding.left; // reduce available space by insets, if we're in a constrained situation if (NS_UNCONSTRAINEDSIZE!=availSize.width) availSize.width -= leftInset+rightInset; if (NS_UNCONSTRAINEDSIZE!=availSize.height) availSize.height -= topInset+bottomInset; PRBool isStyleChanged = PR_FALSE; if (eReflowReason_Incremental == aReflowState.reason) { // We *must* do this otherwise incremental reflow that's // passing through will not work right. nsIFrame* next; aReflowState.reflowCommand->GetNext(next); // if it is a StyleChanged reflow targeted at this cell frame, // handle that here // first determine if this frame is the target or not nsIFrame *target=nsnull; rv = aReflowState.reflowCommand->GetTarget(target); if ((PR_TRUE==NS_SUCCEEDED(rv)) && target) { if (this == target) { nsIReflowCommand::ReflowType type; aReflowState.reflowCommand->GetType(type); if (nsIReflowCommand::StyleChanged == type) { isStyleChanged = PR_TRUE; } else { NS_ASSERTION(PR_FALSE, "table cell target of illegal incremental reflow type"); } } } // if any of these conditions are not true, we just pass the reflow command down } // Try to reflow the child into the available space. It might not // fit or might need continuing. if (availSize.height < 0) availSize.height = 1; nsHTMLReflowMetrics kidSize(pMaxElementSize, aDesiredSize.mFlags); kidSize.width=kidSize.height=kidSize.ascent=kidSize.descent=0; SetPriorAvailWidth(aReflowState.availableWidth); nsIFrame* firstKid = mFrames.FirstChild(); nsHTMLReflowState kidReflowState(aPresContext, aReflowState, firstKid, availSize); // If it was a style change targeted at us, then reflow the child using // the special reflow reason if (isStyleChanged) { kidReflowState.reason = eReflowReason_StyleChange; kidReflowState.reflowCommand = nsnull; // the following could be optimized with a fair amount of effort tableFrame->SetNeedStrategyInit(PR_TRUE); } // Assume the inner child will stay positioned exactly where it is. Later in // VerticallyAlignChild() we'll move it if it turns out to be wrong. This // avoids excessive movement and is more stable nsPoint kidOrigin; if (eReflowReason_Initial == aReflowState.reason) { kidOrigin.MoveTo(leftInset, topInset); } else { // handle percent padding-left which was 0 during initial reflow if (eStyleUnit_Percent == aReflowState.mStylePadding->mPadding.GetLeftUnit()) { nsRect kidRect; firstKid->GetRect(kidRect); // only move in the x direction for the same reason as above kidOrigin.MoveTo(leftInset, kidRect.y); firstKid->MoveTo(aPresContext, leftInset, kidRect.y); } firstKid->GetOrigin(kidOrigin); } #if defined DEBUG_TABLE_REFLOW | DEBUG_TABLE_REFLOW_TIMING nsTableFrame::DebugReflow(firstKid, (nsHTMLReflowState&)kidReflowState); #endif ReflowChild(firstKid, aPresContext, kidSize, kidReflowState, kidOrigin.x, kidOrigin.y, 0, aStatus); if (isStyleChanged) { Invalidate(aPresContext, mRect); } #if defined DEBUG_TABLE_REFLOW | DEBUG_TABLE_REFLOW_TIMING nsTableFrame::DebugReflow(firstKid, (nsHTMLReflowState&)kidReflowState, &kidSize, aStatus); #endif #ifdef NS_DEBUG DebugCheckChildSize(firstKid, kidSize, availSize, (NS_UNCONSTRAINEDSIZE != aReflowState.availableWidth)); #endif // 0 dimensioned cells need to be treated specially in Standard/NavQuirks mode // see testcase "emptyCells.html" if ((0 == kidSize.width) || (0 == kidSize.height)) { // XXX why was this && SetContentEmpty(PR_TRUE); if (NS_UNCONSTRAINEDSIZE == kidReflowState.availableWidth) { // need to reduce the insets by border if the cell is empty leftInset -= border.left; rightInset -= border.right; topInset -= border.top; bottomInset -= border.bottom; } } else { SetContentEmpty(PR_FALSE); } const nsStylePosition* pos; GetStyleData(eStyleStruct_Position, ((const nsStyleStruct *&)pos)); // calculate the min cell width float p2t; aPresContext->GetScaledPixelsToTwips(&p2t); nscoord onePixel = NSIntPixelsToTwips(1, p2t); nscoord smallestMinWidth = onePixel; if (eCompatibility_NavQuirks == compatMode) { if ((pos->mWidth.GetUnit() != eStyleUnit_Coord) && (pos->mWidth.GetUnit() != eStyleUnit_Percent)) { if (PR_TRUE == GetContentEmpty()) { if (border.left > 0) smallestMinWidth += onePixel; if (border.right > 0) smallestMinWidth += onePixel; } } } PRInt32 colspan = tableFrame->GetEffectiveColSpan(*this); if (colspan > 1) { smallestMinWidth = PR_MAX(smallestMinWidth, colspan * onePixel); nscoord spacingX = tableFrame->GetCellSpacingX(); nscoord spacingExtra = spacingX * (colspan - 1); smallestMinWidth += spacingExtra; if (aReflowState.mComputedPadding.left > 0) { smallestMinWidth -= onePixel; } } if ((0 == kidSize.width) && (NS_UNCONSTRAINEDSIZE != kidReflowState.availableWidth)) { // empty content has to be forced to the assigned width for resize or incremental reflow kidSize.width = kidReflowState.availableWidth; } if (0 == kidSize.height) { if ((pos->mHeight.GetUnit() != eStyleUnit_Coord) && (pos->mHeight.GetUnit() != eStyleUnit_Percent)) { // Standard mode should probably be 0 pixels high instead of 1 PRInt32 pixHeight = (eCompatibility_Standard == compatMode) ? 1 : 2; kidSize.height = NSIntPixelsToTwips(pixHeight, p2t); if ((nsnull != aDesiredSize.maxElementSize) && (0 == pMaxElementSize->height)) pMaxElementSize->height = kidSize.height; } } // end 0 dimensioned cells kidSize.width = PR_MAX(kidSize.width, smallestMinWidth); if (!tableFrame->IsAutoLayout()) { // a cell in a fixed layout table is constrained to the avail width kidSize.width = PR_MIN(kidSize.width, availSize.width); } //if (eReflowReason_Resize == aReflowState.reason) { // NS_ASSERTION(kidSize.width <= availSize.width, "child needed more space during resize reflow"); //} // Place the child FinishReflowChild(firstKid, aPresContext, kidSize, kidOrigin.x, kidOrigin.y, 0); // first, compute the height which can be set w/o being restricted by aMaxSize.height nscoord cellHeight = kidSize.height; if (NS_UNCONSTRAINEDSIZE != cellHeight) { cellHeight += topInset + bottomInset; } cellHeight = nsTableFrame::RoundToPixel(cellHeight, p2t); // work around block rounding errors // next determine the cell's width nscoord cellWidth = kidSize.width; // at this point, we've factored in the cell's style attributes // factor in border and padding if (NS_UNCONSTRAINEDSIZE != cellWidth) { cellWidth += leftInset + rightInset; } cellWidth = nsTableFrame::RoundToPixel(cellWidth, p2t); // work around block rounding errors // set the cell's desired size and max element size aDesiredSize.width = cellWidth; aDesiredSize.height = cellHeight; aDesiredSize.ascent = topInset; aDesiredSize.descent = bottomInset; aDesiredSize.ascent += kidSize.ascent; aDesiredSize.descent += kidSize.descent; if (aDesiredSize.mFlags & NS_REFLOW_CALC_MAX_WIDTH) { aDesiredSize.mMaximumWidth = kidSize.mMaximumWidth; if (NS_UNCONSTRAINEDSIZE != aDesiredSize.mMaximumWidth) { aDesiredSize.mMaximumWidth += leftInset + rightInset; aDesiredSize.mMaximumWidth = nsTableFrame::RoundToPixel(aDesiredSize.mMaximumWidth, p2t); } } if (aDesiredSize.maxElementSize) { *aDesiredSize.maxElementSize = *pMaxElementSize; if ((0 != pMaxElementSize->height) && (NS_UNCONSTRAINEDSIZE != pMaxElementSize->height)) { aDesiredSize.maxElementSize->height += topInset + bottomInset; aDesiredSize.maxElementSize->height = nsTableFrame::RoundToPixel(aDesiredSize.maxElementSize->height, p2t); } aDesiredSize.maxElementSize->width = PR_MAX(smallestMinWidth, aDesiredSize.maxElementSize->width); if (NS_UNCONSTRAINEDSIZE != aDesiredSize.maxElementSize->width) { aDesiredSize.maxElementSize->width += leftInset + rightInset; aDesiredSize.maxElementSize->width = nsTableFrame::RoundToPixel(aDesiredSize.maxElementSize->width, p2t); } } // remember my desired size for this reflow SetDesiredSize(aDesiredSize); #if defined DEBUG_TABLE_REFLOW | DEBUG_TABLE_REFLOW_TIMING nsTableFrame::DebugReflow(this, (nsHTMLReflowState&)aReflowState, &aDesiredSize, aStatus); #endif return NS_OK; } /** * * Update the border style to map to the HTML border style * */ void nsTableCellFrame::MapHTMLBorderStyle(nsIPresContext* aPresContext, nsStyleBorder& aBorderStyle, nsTableFrame* aTableFrame) { //adjust the border style based on the table rules attribute /* The RULES code below has been disabled because collapsing borders have been disabled and RULES depend on collapsing borders NOTE: The place where this function was called has been disabled too. const nsStyleTable* tableStyle; aTableFrame->GetStyleData(eStyleStruct_Table, (const nsStyleStruct *&)tableStyle); switch (tableStyle->mRules) { case NS_STYLE_TABLE_RULES_NONE: aBorderStyle.SetBorderStyle(NS_SIDE_TOP, NS_STYLE_BORDER_STYLE_NONE); aBorderStyle.SetBorderStyle(NS_SIDE_LEFT, NS_STYLE_BORDER_STYLE_NONE); aBorderStyle.SetBorderStyle(NS_SIDE_BOTTOM, NS_STYLE_BORDER_STYLE_NONE); aBorderStyle.SetBorderStyle(NS_SIDE_RIGHT, NS_STYLE_BORDER_STYLE_NONE); break; case NS_STYLE_TABLE_RULES_COLS: aBorderStyle.SetBorderStyle(NS_SIDE_TOP, NS_STYLE_BORDER_STYLE_NONE); aBorderStyle.SetBorderStyle(NS_SIDE_BOTTOM, NS_STYLE_BORDER_STYLE_NONE); break; case NS_STYLE_TABLE_RULES_ROWS: aBorderStyle.SetBorderStyle(NS_SIDE_LEFT, NS_STYLE_BORDER_STYLE_NONE); aBorderStyle.SetBorderStyle(NS_SIDE_RIGHT, NS_STYLE_BORDER_STYLE_NONE); break; default: // do nothing for "GROUPS" or "ALL" or for any illegal value // "GROUPS" will be handled in nsTableFrame::ProcessGroupRules break; } */ } PRBool nsTableCellFrame::ConvertToPixelValue(nsHTMLValue& aValue, PRInt32 aDefault, PRInt32& aResult) { if (aValue.GetUnit() == eHTMLUnit_Pixel) aResult = aValue.GetPixelValue(); else if (aValue.GetUnit() == eHTMLUnit_Empty) aResult = aDefault; else { NS_ERROR("Unit must be pixel or empty"); return PR_FALSE; } return PR_TRUE; } void nsTableCellFrame::MapBorderPadding(nsIPresContext* aPresContext) { // Check to see if the table has cell padding or defined for the table. If true, // then this setting overrides any specific border or padding information in the // cell. If these attributes are not defined, the the cells attributes are used nsTableFrame* tableFrame; nsTableFrame::GetTableFrame(this, tableFrame); NS_ASSERTION(tableFrame,"Table must not be null"); if (!tableFrame) return; // get the table frame style context, and from it get cellpadding, cellspacing, and border info const nsStyleTable* tableStyle; tableFrame->GetStyleData(eStyleStruct_Table, (const nsStyleStruct *&)tableStyle); const nsStylePadding* tablePaddingStyle; tableFrame->GetStyleData(eStyleStruct_Padding,(const nsStyleStruct *&)tablePaddingStyle); { nsMutableStylePadding paddingData(mStyleContext); float p2t; aPresContext->GetPixelsToTwips(&p2t); // Get the table's cellpadding or use 2 pixels as the default if it is not set. // This assumes that ua.css does not set padding for the cell. nscoord defaultPadding = tableFrame->GetCellPadding(); if (-1 == defaultPadding) { // not set in table defaultPadding = NSIntPixelsToTwips(1, p2t); } // if the padding is not already set, set it to the table's cellpadding if (eStyleUnit_Null == paddingData->mPadding.GetTopUnit()) paddingData->mPadding.SetTop(defaultPadding); if (eStyleUnit_Null == paddingData->mPadding.GetRightUnit()) paddingData->mPadding.SetRight(defaultPadding); if (eStyleUnit_Null == paddingData->mPadding.GetBottomUnit()) paddingData->mPadding.SetBottom(defaultPadding); if (eStyleUnit_Null == paddingData->mPadding.GetLeftUnit()) paddingData->mPadding.SetLeft(defaultPadding); } /* MapHTMLBorderStyle() has been disabled because collapsing borders have been disabled and the rules in MapHTMLBorderStyle() depend on collapsing borders { nsMutableStyleBorder borderData(mStyleContext); MapHTMLBorderStyle(aPresContext, *borderData, tableFrame); } */ MapVAlignAttribute(aPresContext, tableFrame); MapHAlignAttribute(aPresContext, tableFrame); } /* XXX: this code will not work properly until the style and layout code has been updated * as outlined in Bugzilla bug report 1802 and 915 */ void nsTableCellFrame::MapVAlignAttribute(nsIPresContext* aPresContext, nsTableFrame *aTableFrame) { const nsStyleText* textStyle; GetStyleData(eStyleStruct_Text,(const nsStyleStruct *&)textStyle); // check if valign is set on the cell // this condition will also be true if we inherited valign from the row or rowgroup if (textStyle->mVerticalAlign.GetUnit() == eStyleUnit_Enumerated) { return; // valign is already set on this cell } // check if valign is set on the cell's COL (or COLGROUP by inheritance) PRInt32 colIndex; GetColIndex(colIndex); nsTableColFrame* colFrame = aTableFrame->GetColFrame(colIndex); if (colFrame) { const nsStyleText* colTextStyle; colFrame->GetStyleData(eStyleStruct_Text,(const nsStyleStruct *&)colTextStyle); if (colTextStyle->mVerticalAlign.GetUnit() == eStyleUnit_Enumerated) { nsMutableStyleText cellTextStyle(mStyleContext); cellTextStyle->mVerticalAlign.SetIntValue(colTextStyle->mVerticalAlign.GetIntValue(), eStyleUnit_Enumerated); return; // valign set from COL info } } // otherwise, set the vertical align attribute to the HTML default nsMutableStyleText cellTextStyle(mStyleContext); cellTextStyle->mVerticalAlign.SetIntValue(NS_STYLE_VERTICAL_ALIGN_MIDDLE, eStyleUnit_Enumerated); } /* XXX: this code will not work properly until the style and layout code has been updated * as outlined in Bugzilla bug report 1802 and 915. * In particular, mTextAlign has to be an nsStyleCoord, not just an int */ void nsTableCellFrame::MapHAlignAttribute(nsIPresContext* aPresContext, nsTableFrame* aTableFrame) { #if 0 const nsStyleText* textStyle; GetStyleData(eStyleStruct_Text,(const nsStyleStruct *&)textStyle); // check if halign is set on the cell // cells do not inherited halign from the row or rowgroup if (NS_STYLE_TEXT_ALIGN_DEFAULT != textStyle->mTextAlign) { return; // text align is already set on this cell } // check if halign is set on the cell's ROW (or ROWGROUP by inheritance) nsIFrame* rowFrame; GetParent(&rowFrame); const nsStyleText* rowTextStyle; rowFrame->GetStyleData(eStyleStruct_Text,(const nsStyleStruct *&)rowTextStyle); if (NS_STYLE_TEXT_ALIGN_DEFAULT != rowTextStyle->mTextAlign) { nsMutableStyleText cellTextStyle(mStyleContext); cellTextStyle->mTextAlign = rowTextStyle->mTextAlign; return; // halign set from ROW info } // check if halign is set on the cell's COL (or COLGROUP by inheritance) PRInt32 colIndex; GetColIndex(colIndex); nsTableColFrame* colFrame = aTableFrame->GetColFrame(colIndex); if (colFrame) { const nsStyleText* colTextStyle; colFrame->GetStyleData(eStyleStruct_Text,(const nsStyleStruct *&)colTextStyle); if (NS_STYLE_TEXT_ALIGN_DEFAULT != colTextStyle->mTextAlign) { nsMutableStyleText cellTextStyle(mStyleContext); cellTextStyle->mTextAlign = colTextStyle->mTextAlign; return; // halign set from COL info } } // otherwise, set the text align to the HTML default (center for TH, left for TD) nsIAtom* tag; if (mContent) { mContent->GetTag(tag); if (tag) { nsMutableStyleText cellTextStyle(mStyleContext); cellTextStyle->mTextAlign = (nsHTMLAtoms::th == tag) ? NS_STYLE_TEXT_ALIGN_CENTER : NS_STYLE_TEXT_ALIGN_LEFT; } NS_IF_RELEASE(tag); } #endif } // Subclass hook for style post processing NS_METHOD nsTableCellFrame::DidSetStyleContext(nsIPresContext* aPresContext) { #ifdef NOISY_STYLE printf("nsTableCellFrame::DidSetStyleContext \n"); #endif MapBorderPadding(aPresContext); mStyleContext->RecalcAutomaticData(aPresContext); return NS_OK; } /* ----- global methods ----- */ NS_IMPL_ADDREF_INHERITED(nsTableCellFrame, nsHTMLContainerFrame) NS_IMPL_RELEASE_INHERITED(nsTableCellFrame, nsHTMLContainerFrame) nsresult nsTableCellFrame::QueryInterface(const nsIID& aIID, void** aInstancePtr) { if (NULL == aInstancePtr) { return NS_ERROR_NULL_POINTER; } if (aIID.Equals(NS_GET_IID(nsITableCellLayout))) { *aInstancePtr = (void*) (nsITableCellLayout *)this; return NS_OK; } else if (aIID.Equals(NS_GET_IID(nsIAccessible))) { nsresult rv = NS_OK; NS_WITH_SERVICE(nsIAccessibilityService, accService, "@mozilla.org/accessibilityService;1", &rv); if (accService) { nsCOMPtr node = do_QueryInterface(mContent); nsIMutableAccessible* acc = nsnull; accService->CreateMutableAccessible(node,&acc); nsAutoString name; acc->SetName(NS_LITERAL_STRING("Cell").get()); acc->SetRole(NS_LITERAL_STRING("cell").get()); *aInstancePtr = acc; return NS_OK; } return NS_ERROR_FAILURE; } else { return nsHTMLContainerFrame::QueryInterface(aIID, aInstancePtr); } } /* This is primarily for editor access via nsITableLayout */ NS_IMETHODIMP nsTableCellFrame::GetCellIndexes(PRInt32 &aRowIndex, PRInt32 &aColIndex) { nsresult res = GetRowIndex(aRowIndex); if (NS_FAILED(res)) { aColIndex = 0; return res; } aColIndex = mColIndex; return NS_OK; } NS_IMETHODIMP nsTableCellFrame::GetPreviousCellInColumn(nsITableCellLayout **aCellLayout) { if (!aCellLayout) return NS_ERROR_NULL_POINTER; *aCellLayout = nsnull; nsTableFrame* tableFrame = nsnull; nsresult rv = nsTableFrame::GetTableFrame(this, tableFrame); if (NS_FAILED(rv)) return rv; if (!tableFrame) return NS_ERROR_FAILURE; // Get current cell location PRInt32 rowIndex, colIndex; GetCellIndexes(rowIndex, colIndex); if (colIndex > 0) { // Get the cellframe at previous colIndex nsTableCellFrame *cellFrame = tableFrame->GetCellFrameAt(rowIndex, colIndex-1); if (cellFrame) cellFrame->QueryInterface(NS_GET_IID(nsITableCellLayout), (void **)aCellLayout); } return NS_OK; } NS_IMETHODIMP nsTableCellFrame::GetNextCellInColumn(nsITableCellLayout **aCellLayout) { if (!aCellLayout) return NS_ERROR_NULL_POINTER; *aCellLayout = nsnull; nsTableFrame* tableFrame = nsnull; nsresult rv = nsTableFrame::GetTableFrame(this, tableFrame); if (NS_FAILED(rv)) return rv; if (!tableFrame) return NS_ERROR_FAILURE; // Get current cell location PRInt32 rowIndex, colIndex; GetCellIndexes(rowIndex, colIndex); // Get the cellframe at next colIndex nsTableCellFrame *cellFrame = tableFrame->GetCellFrameAt(rowIndex, colIndex+1); if (cellFrame) cellFrame->QueryInterface(NS_GET_IID(nsITableCellLayout), (void **)aCellLayout); return NS_OK; } nsresult NS_NewTableCellFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame) { NS_PRECONDITION(aNewFrame, "null OUT ptr"); if (nsnull == aNewFrame) { return NS_ERROR_NULL_POINTER; } nsTableCellFrame* it = new (aPresShell) nsTableCellFrame; if (nsnull == it) { return NS_ERROR_OUT_OF_MEMORY; } *aNewFrame = it; return NS_OK; } /* ----- methods from CellLayoutData ----- */ void nsTableCellFrame::GetCellBorder(nsMargin& aBorder, nsTableFrame* aTableFrame) { aBorder.left = aBorder.right = aBorder.top = aBorder.bottom = 0; if (nsnull==aTableFrame) { return; } if (NS_STYLE_BORDER_SEPARATE == aTableFrame->GetBorderCollapseStyle()) { const nsStyleBorder* borderData; GetStyleData(eStyleStruct_Border, (const nsStyleStruct*&)borderData); borderData->GetBorder(aBorder); } else { NS_ASSERTION(PR_FALSE, "not implemented"); } } NS_IMETHODIMP nsTableCellFrame::GetFrameType(nsIAtom** aType) const { NS_PRECONDITION(nsnull != aType, "null OUT parameter pointer"); *aType = nsLayoutAtoms::tableCellFrame; NS_ADDREF(*aType); return NS_OK; } #ifdef DEBUG NS_IMETHODIMP nsTableCellFrame::GetFrameName(nsString& aResult) const { return MakeFrameName("TableCell", aResult); } #endif // Destructor function for the collapse offset frame property static void DestroyPointFunc(nsIPresContext* aPresContext, nsIFrame* aFrame, nsIAtom* aPropertyName, void* aPropertyValue) { delete (nsPoint*)aPropertyValue; } static nsPoint* GetCollapseOffsetProperty(nsIPresContext* aPresContext, nsIFrame* aFrame, PRBool aCreateIfNecessary = PR_FALSE) { nsCOMPtr presShell; aPresContext->GetShell(getter_AddRefs(presShell)); if (presShell) { nsCOMPtr frameManager; presShell->GetFrameManager(getter_AddRefs(frameManager)); if (frameManager) { void* value; frameManager->GetFrameProperty(aFrame, nsLayoutAtoms::collapseOffsetProperty, 0, &value); if (value) { return (nsPoint*)value; // the property already exists } else if (aCreateIfNecessary) { // The property isn't set yet, so allocate a new point, set the property, // and return the newly allocated point nsPoint* offset = new nsPoint(0, 0); if (!offset) return nsnull; frameManager->SetFrameProperty(aFrame, nsLayoutAtoms::collapseOffsetProperty, offset, DestroyPointFunc); return offset; } } } return nsnull; } void nsTableCellFrame::SetCollapseOffsetX(nsIPresContext* aPresContext, nscoord aXOffset) { // Get the frame property (creating a point struct if necessary) nsPoint* offset = ::GetCollapseOffsetProperty(aPresContext, this, PR_TRUE); if (offset) { offset->x = aXOffset; } } void nsTableCellFrame::SetCollapseOffsetY(nsIPresContext* aPresContext, nscoord aYOffset) { // Get the property (creating a point struct if necessary) nsPoint* offset = ::GetCollapseOffsetProperty(aPresContext, this, PR_TRUE); if (offset) { offset->y = aYOffset; } } void nsTableCellFrame::GetCollapseOffset(nsIPresContext* aPresContext, nsPoint& aOffset) { // See if the property is set nsPoint* offset = ::GetCollapseOffsetProperty(aPresContext, this); if (offset) { aOffset = *offset; } else { aOffset.MoveTo(0, 0); } } #ifdef DEBUG NS_IMETHODIMP nsTableCellFrame::SizeOf(nsISizeOfHandler* aHandler, PRUint32* aResult) const { if (!aResult) { return NS_ERROR_NULL_POINTER; } PRUint32 sum = sizeof(*this); *aResult = sum; return NS_OK; } #endif