зеркало из https://github.com/mozilla/gecko-dev.git
1640 строки
62 KiB
C++
1640 строки
62 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "nsTableRowFrame.h"
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#include "nsIRenderingContext.h"
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#include "nsIPresShell.h"
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#include "nsIPresContext.h"
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#include "nsIStyleContext.h"
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#include "nsStyleConsts.h"
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#include "nsIHTMLAttributes.h"
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#include "nsHTMLAtoms.h"
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#include "nsIContent.h"
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#include "nsTableFrame.h"
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#include "nsTableCellFrame.h"
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#include "nsIView.h"
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#include "nsIPtr.h"
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#include "nsIReflowCommand.h"
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#include "nsCSSRendering.h"
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#include "nsHTMLIIDs.h"
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#include "nsLayoutAtoms.h"
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#include "nsHTMLParts.h"
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#include "nsTableColGroupFrame.h"
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#include "nsTableColFrame.h"
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#include "nsCOMPtr.h"
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// the following header files are required for style optimizations that work only when the child content is really a cell
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#include "nsIHTMLTableCellElement.h"
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static NS_DEFINE_IID(kIHTMLTableCellElementIID, NS_IHTMLTABLECELLELEMENT_IID);
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// end includes for style optimizations that require real content knowledge
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NS_DEF_PTR(nsIStyleContext);
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#ifdef NS_DEBUG
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static PRBool gsDebug = PR_FALSE;
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static PRBool gsDebugIR = PR_FALSE;
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#else
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static const PRBool gsDebug = PR_FALSE;
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static const PRBool gsDebugIR = PR_FALSE;
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#endif
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/* ----------- RowReflowState ---------- */
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struct RowReflowState {
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// Our reflow state
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const nsHTMLReflowState& reflowState;
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// The body's available size (computed from the body's parent)
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nsSize availSize;
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// the running x-offset
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nscoord x;
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// Height of tallest cell (excluding cells with rowspan > 1)
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nscoord maxCellHeight; // just the height of the cell frame
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nscoord maxCellVertSpace; // the maximum MAX(cellheight + topMargin + bottomMargin)
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nsTableFrame *tableFrame;
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RowReflowState(const nsHTMLReflowState& aReflowState,
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nsTableFrame* aTableFrame)
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: reflowState(aReflowState)
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{
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availSize.width = reflowState.availableWidth;
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availSize.height = reflowState.availableHeight;
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maxCellHeight = 0;
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maxCellVertSpace = 0;
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tableFrame = aTableFrame;
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x=0;
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}
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};
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/* ----------- nsTableRowpFrame ---------- */
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nsTableRowFrame::nsTableRowFrame()
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: nsHTMLContainerFrame(),
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mTallestCell(0),
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mCellMaxTopMargin(0),
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mCellMaxBottomMargin(0),
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mMinRowSpan(1),
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mInitializedChildren(PR_FALSE)
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{
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}
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NS_IMETHODIMP
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nsTableRowFrame::Init(nsIPresContext& aPresContext,
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nsIContent* aContent,
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nsIFrame* aParent,
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nsIStyleContext* aContext,
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nsIFrame* aPrevInFlow)
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{
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nsresult rv;
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// Let the the base class do its initialization
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rv = nsHTMLContainerFrame::Init(aPresContext, aContent, aParent, aContext,
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aPrevInFlow);
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if (aPrevInFlow) {
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// Set the row index
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nsTableRowFrame* rowFrame = (nsTableRowFrame*)aPrevInFlow;
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SetRowIndex(rowFrame->GetRowIndex());
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}
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return rv;
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}
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// Helper function. It marks the table frame as dirty and generates
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// a reflow command
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nsresult
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nsTableRowFrame::AddTableDirtyReflowCommand(nsIPresContext& aPresContext,
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nsIPresShell& aPresShell,
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nsIFrame* aTableFrame)
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{
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nsFrameState frameState;
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nsIFrame* tableParentFrame;
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nsIReflowCommand* reflowCmd;
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nsresult rv;
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// Mark the table frame as dirty
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aTableFrame->GetFrameState(&frameState);
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frameState |= NS_FRAME_IS_DIRTY;
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aTableFrame->SetFrameState(frameState);
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// Target the reflow comamnd at its parent frame
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aTableFrame->GetParent(&tableParentFrame);
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rv = NS_NewHTMLReflowCommand(&reflowCmd, tableParentFrame,
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nsIReflowCommand::ReflowDirty);
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if (NS_SUCCEEDED(rv)) {
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// Add the reflow command
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rv = aPresShell.AppendReflowCommand(reflowCmd);
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NS_RELEASE(reflowCmd);
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}
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return rv;
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}
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NS_IMETHODIMP
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nsTableRowFrame::AppendFrames(nsIPresContext& aPresContext,
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nsIPresShell& aPresShell,
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nsIAtom* aListName,
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nsIFrame* aFrameList)
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{
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// Append the frames
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mFrames.AppendFrames(nsnull, aFrameList);
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// Add the new cell frames to the table
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nsTableFrame *tableFrame = nsnull;
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nsTableFrame::GetTableFrame(this, tableFrame);
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for (nsIFrame* childFrame = aFrameList; childFrame; childFrame->GetNextSibling(&childFrame)) {
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const nsStyleDisplay *display;
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childFrame->GetStyleData(eStyleStruct_Display, ((const nsStyleStruct *&)display));
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if (NS_STYLE_DISPLAY_TABLE_CELL == display->mDisplay) {
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// Add the cell to the cell map
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PRInt32 colIndex = tableFrame->AddCellToTable((nsTableCellFrame*)childFrame,
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GetRowIndex());
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// Initialize the cell frame and give it its column index
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((nsTableCellFrame*)childFrame)->InitCellFrame(colIndex);
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}
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}
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// See if any implicit column frames need to be created as a result of
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// adding the new rows
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PRBool createdColFrames;
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tableFrame->EnsureColumns(aPresContext, createdColFrames);
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if (createdColFrames) {
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// We need to rebuild the column cache
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// XXX It would be nice if this could be done incrementally
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tableFrame->InvalidateColumnCache();
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}
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// Reflow the new frames. They're already marked dirty, so generate a reflow
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// command that tells us to reflow our dirty child frames
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nsIReflowCommand* reflowCmd;
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if (NS_SUCCEEDED(NS_NewHTMLReflowCommand(&reflowCmd, this,
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nsIReflowCommand::ReflowDirty))) {
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aPresShell.AppendReflowCommand(reflowCmd);
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NS_RELEASE(reflowCmd);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsTableRowFrame::InsertFrames(nsIPresContext& aPresContext,
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nsIPresShell& aPresShell,
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nsIAtom* aListName,
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nsIFrame* aPrevFrame,
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nsIFrame* aFrameList)
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{
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// Get the table frame
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nsTableFrame* tableFrame = nsnull;
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nsTableFrame::GetTableFrame(this, tableFrame);
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// Insert the frames
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mFrames.InsertFrames(nsnull, aPrevFrame, aFrameList);
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// We need to rebuild the cell map, because currently we can't insert
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// new frames except at the end (append)
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tableFrame->InvalidateCellMap();
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// We should try and avoid doing a pass1 reflow on all the cells and just
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// do it for the newly added frames, but we need to add these frames to the
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// cell map before we reflow them
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tableFrame->InvalidateFirstPassCache();
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// Because the number of columns may have changed invalidate the column
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// cache. Note that this has the side effect of recomputing the column
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// widths, so we don't need to call InvalidateColumnWidths()
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tableFrame->InvalidateColumnCache();
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// Generate a reflow command so we reflow the table itself. This will
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// do a pass-1 reflow of all the rows including any rows we just added
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AddTableDirtyReflowCommand(aPresContext, aPresShell, tableFrame);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsTableRowFrame::RemoveFrame(nsIPresContext& aPresContext,
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nsIPresShell& aPresShell,
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nsIAtom* aListName,
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nsIFrame* aOldFrame)
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{
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// Get the table frame
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nsTableFrame* tableFrame=nsnull;
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nsTableFrame::GetTableFrame(this, tableFrame);
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#if 0
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// XXX Currently we can't incrementally remove cells from the cell map
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PRInt32 colIndex;
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aDeletedFrame->GetColIndex(colIndex);
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tableFrame->RemoveCellFromTable(aOldFrame, GetRowIndex());
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// Remove the frame and destroy it
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mFrames.DestroyFrame(aPresContext, (nsIFrame*)aOldFrame);
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// XXX Reflow the row
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#else
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// Remove the frame and destroy it
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mFrames.DestroyFrame(aPresContext, aOldFrame);
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// We need to rebuild the cell map, because currently we can't incrementally
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// remove rows
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tableFrame->InvalidateCellMap();
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// Because the number of columns may have changed invalidate the column
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// cache. Note that this has the side effect of recomputing the column
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// widths, so we don't need to call InvalidateColumnWidths()
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tableFrame->InvalidateColumnCache();
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// Because we haven't added any new frames we don't need to do a pass1
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// reflow. Just generate a reflow command so we reflow the table itself
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AddTableDirtyReflowCommand(aPresContext, aPresShell, tableFrame);
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#endif
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return NS_OK;
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}
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NS_IMETHODIMP
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nsTableRowFrame::InitChildren()
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{
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if (gsDebug) printf("Row InitChildren: begin\n");
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nsTableFrame* table = nsnull;
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nsresult result=NS_OK;
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// each child cell can only be added to the table one time.
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// for now, we remember globally whether we've added all or none
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if (PR_FALSE==mInitializedChildren)
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{
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if (gsDebug) printf("Row InitChildren: mInitializedChildren=PR_FALSE\n");
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result = nsTableFrame::GetTableFrame(this, table);
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if ((NS_OK==result) && (table != nsnull))
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{
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mInitializedChildren=PR_TRUE;
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PRInt32 rowIndex = table->GetNextAvailRowIndex();
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SetRowIndex(rowIndex);
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if (gsDebug) printf("Row InitChildren: set row index to %d\n", rowIndex);
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PRInt32 colIndex = 0;
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for (nsIFrame* kidFrame = mFrames.FirstChild(); nsnull != kidFrame; kidFrame->GetNextSibling(&kidFrame))
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{
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const nsStyleDisplay *kidDisplay;
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kidFrame->GetStyleData(eStyleStruct_Display, ((const nsStyleStruct *&)kidDisplay));
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if (NS_STYLE_DISPLAY_TABLE_CELL == kidDisplay->mDisplay)
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{
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// add the cell frame to the table's cell map and get its col index
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PRInt32 colIndex;
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colIndex = table->AddCellToTable((nsTableCellFrame *)kidFrame, rowIndex);
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// what column does this cell belong to?
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if (gsDebug) printf("Row InitChildren: cell given colIndex %d\n", colIndex);
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// this sets the frame's notion of it's column index
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((nsTableCellFrame *)kidFrame)->InitCellFrame(colIndex);
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if (gsDebug) printf("%p : set cell frame %p to col index = %d\n", this, kidFrame, colIndex);
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}
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}
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}
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}
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if (gsDebug) printf("Row InitChildren: end\n");
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return NS_OK;
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}
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/**
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* Post-reflow hook. This is where the table row does its post-processing
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*/
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void
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nsTableRowFrame::DidResize(nsIPresContext& aPresContext,
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const nsHTMLReflowState& aReflowState)
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{
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if (gsDebug) printf("Row %p DidResize: begin mRect.h=%d, mCellMTM=%d, mCellMBM=%d\n",
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this, mRect.height, mCellMaxTopMargin, mCellMaxBottomMargin);
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// Resize and re-align the cell frames based on our row height
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nscoord rowCellHeight = mRect.height - mCellMaxTopMargin - mCellMaxBottomMargin;
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if (gsDebug) printf("Row DidReflow: cellHeight=%d\n", rowCellHeight);
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nsTableFrame* tableFrame;
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nsTableFrame::GetTableFrame(this, tableFrame);
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nsTableIterator iter(*this, eTableDIR);
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nsIFrame* cellFrame = iter.First();
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while (nsnull != cellFrame) {
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const nsStyleDisplay *kidDisplay;
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cellFrame->GetStyleData(eStyleStruct_Display, ((const nsStyleStruct *&)kidDisplay));
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if (NS_STYLE_DISPLAY_TABLE_CELL == kidDisplay->mDisplay) {
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PRInt32 rowSpan = tableFrame->GetEffectiveRowSpan(mRowIndex, (nsTableCellFrame *)cellFrame);
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if (gsDebug) printf("Row DidReflow: cellFrame %p ", cellFrame);
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nscoord cellHeight = rowCellHeight;
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// add in height of rows spanned beyond the 1st one
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nsIFrame* nextRow = nsnull;
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GetNextSibling(&nextRow);
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for (int i = 1; ((i < rowSpan) && nextRow);) {
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const nsStyleDisplay *nextDisplay;
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nextRow->GetStyleData(eStyleStruct_Display, ((const nsStyleStruct *&)nextDisplay));
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if (NS_STYLE_DISPLAY_TABLE_ROW == nextDisplay->mDisplay) {
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nsRect rect;
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nextRow->GetRect(rect);
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cellHeight += rect.height;
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i++;
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}
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nextRow->GetNextSibling(&nextRow);
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}
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// resize the cell's height
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nsSize cellFrameSize;
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cellFrame->GetSize(cellFrameSize);
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//if (cellFrameSize.height!=cellHeight)
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{
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cellFrame->SizeTo(cellFrameSize.width, cellHeight);
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if (gsDebug) printf("given height %d\n", cellHeight);
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// realign cell content based on the new height
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/*nsHTMLReflowMetrics desiredSize(nsnull);
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nsHTMLReflowState kidReflowState(aPresContext, aReflowState,
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cellFrame,
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nsSize(cellFrameSize.width, cellHeight),
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eReflowReason_Resize);*/
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//XXX: the following reflow is necessary for any content of the cell
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// whose height is a percent of the cell's height (maybe indirectly.)
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// But some content crashes when this reflow is issued, to be investigated
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//XXX nsReflowStatus status;
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//ReflowChild(cellFrame, aPresContext, desiredSize, kidReflowState, status);
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((nsTableCellFrame *)cellFrame)->VerticallyAlignChild();
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/* if we're collapsing borders, notify the cell that the border edge length has changed */
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if (NS_STYLE_BORDER_COLLAPSE == tableFrame->GetBorderCollapseStyle()) {
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((nsTableCellFrame *)(cellFrame))->SetBorderEdgeLength(NS_SIDE_LEFT,
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GetRowIndex(),
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cellHeight);
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((nsTableCellFrame *)(cellFrame))->SetBorderEdgeLength(NS_SIDE_RIGHT,
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GetRowIndex(),
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cellHeight);
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}
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}
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}
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// Get the next cell
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cellFrame = iter.Next();
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}
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// Let our base class do the usual work
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if (gsDebug) printf("Row DidResize: returning NS_OK---------------------------\n");
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}
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void nsTableRowFrame::ResetMaxChildHeight()
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{
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if (gsDebug) printf("Row ResetMaxChildHeight\n");
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mTallestCell=0;
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mCellMaxTopMargin=0;
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mCellMaxBottomMargin=0;
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}
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void nsTableRowFrame::SetMaxChildHeight(nscoord aChildHeight, nscoord aTopMargin, nscoord aBottomMargin)
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{
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if (gsDebug) printf("Row SetMaxChildHeight to %d\n", aChildHeight);
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if (mTallestCell<aChildHeight)
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mTallestCell = aChildHeight;
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if (mCellMaxTopMargin<aTopMargin)
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mCellMaxTopMargin = aTopMargin;
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if (mCellMaxBottomMargin<aBottomMargin)
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mCellMaxBottomMargin = aBottomMargin;
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}
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/*
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const nsStyleColor* myColor =
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(const nsStyleColor*)mStyleContext->GetStyleData(eStyleStruct_Color);
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if (nsnull != myColor) {
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nsRect rect(0, 0, mRect.width, mRect.height);
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nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, this,
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aDirtyRect, rect, *myColor);
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}
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*/
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PRBool IsFirstRow(nsTableFrame& aTable,
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nsTableRowFrame& aRow)
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{
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nsIFrame* firstRowGroup = nsnull;
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aTable.FirstChild(nsnull, &firstRowGroup);
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nsIFrame* rowGroupFrame = nsnull;
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nsresult rv = aRow.GetParent(&rowGroupFrame);
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if (NS_SUCCEEDED(rv) && (rowGroupFrame == firstRowGroup)) {
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nsIFrame* firstRow;
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rowGroupFrame->FirstChild(nsnull, &firstRow);
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return (&aRow == firstRow);
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}
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return PR_FALSE;
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}
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NS_METHOD nsTableRowFrame::Paint(nsIPresContext& aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect,
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nsFramePaintLayer aWhichLayer)
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{
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nsresult rv;
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if (NS_FRAME_PAINT_LAYER_BACKGROUND == aWhichLayer) {
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nsCompatibility mode;
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aPresContext.GetCompatibilityMode(&mode);
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if (eCompatibility_Standard == mode) {
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const nsStyleDisplay* disp =
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(const nsStyleDisplay*)mStyleContext->GetStyleData(eStyleStruct_Display);
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if (disp->mVisible) {
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const nsStyleSpacing* spacing =
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(const nsStyleSpacing*)mStyleContext->GetStyleData(eStyleStruct_Spacing);
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const nsStyleColor* color =
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(const nsStyleColor*)mStyleContext->GetStyleData(eStyleStruct_Color);
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nsTableFrame* tableFrame = nsnull;
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rv = nsTableFrame::GetTableFrame(this, tableFrame);
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if (NS_FAILED(rv) || (nsnull == tableFrame)) {
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return rv;
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}
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nscoord cellSpacingX = tableFrame->GetCellSpacingX();
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nscoord halfCellSpacingY =
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NSToCoordRound(((float)tableFrame->GetCellSpacingY()) / (float)2);
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// every row is short by the ending cell spacing X
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nsRect rect(0, 0, mRect.width + cellSpacingX, mRect.height);
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// first row may have gotten too much cell spacing Y
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if (tableFrame->GetRowCount() != 1) {
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if (IsFirstRow(*tableFrame, *this)) {
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rect.height -= halfCellSpacingY;
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}
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else {
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rect.height += halfCellSpacingY;
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rect.y -= halfCellSpacingY;
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}
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}
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nsCSSRendering::PaintBackground(aPresContext, aRenderingContext, this,
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aDirtyRect, rect, *color, *spacing, 0, 0);
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|
}
|
|
}
|
|
}
|
|
// for debug...
|
|
if ((NS_FRAME_PAINT_LAYER_DEBUG == aWhichLayer) && GetShowFrameBorders()) {
|
|
aRenderingContext.SetColor(NS_RGB(0,255,0));
|
|
aRenderingContext.DrawRect(0, 0, mRect.width, mRect.height);
|
|
}
|
|
|
|
PaintChildren(aPresContext, aRenderingContext, aDirtyRect, aWhichLayer);
|
|
return NS_OK;
|
|
|
|
}
|
|
|
|
PRIntn
|
|
nsTableRowFrame::GetSkipSides() const
|
|
{
|
|
PRIntn skip = 0;
|
|
if (nsnull != mPrevInFlow) {
|
|
skip |= 1 << NS_SIDE_TOP;
|
|
}
|
|
if (nsnull != mNextInFlow) {
|
|
skip |= 1 << NS_SIDE_BOTTOM;
|
|
}
|
|
return skip;
|
|
}
|
|
|
|
/** overloaded method from nsContainerFrame. The difference is that
|
|
* we don't want to clip our children, so a cell can do a rowspan
|
|
*/
|
|
void nsTableRowFrame::PaintChildren(nsIPresContext& aPresContext,
|
|
nsIRenderingContext& aRenderingContext,
|
|
const nsRect& aDirtyRect,
|
|
nsFramePaintLayer aWhichLayer)
|
|
{
|
|
nsIFrame* kid = mFrames.FirstChild();
|
|
while (nsnull != kid) {
|
|
nsIView *pView;
|
|
|
|
kid->GetView(&pView);
|
|
if (nsnull == pView) {
|
|
nsRect kidRect;
|
|
kid->GetRect(kidRect);
|
|
nsRect damageArea;
|
|
PRBool overlap = damageArea.IntersectRect(aDirtyRect, kidRect);
|
|
if (overlap) {
|
|
PRBool clipState;
|
|
// Translate damage area into kid's coordinate system
|
|
nsRect kidDamageArea(damageArea.x - kidRect.x,
|
|
damageArea.y - kidRect.y,
|
|
damageArea.width, damageArea.height);
|
|
aRenderingContext.PushState();
|
|
aRenderingContext.Translate(kidRect.x, kidRect.y);
|
|
kid->Paint(aPresContext, aRenderingContext, kidDamageArea,
|
|
aWhichLayer);
|
|
if ((NS_FRAME_PAINT_LAYER_DEBUG == aWhichLayer) &&
|
|
GetShowFrameBorders()) {
|
|
aRenderingContext.SetColor(NS_RGB(255,0,0));
|
|
aRenderingContext.DrawRect(0, 0, kidRect.width, kidRect.height);
|
|
}
|
|
aRenderingContext.PopState(clipState);
|
|
}
|
|
}
|
|
kid->GetNextSibling(&kid);
|
|
}
|
|
}
|
|
|
|
/** returns the height of the tallest child in this row (ignoring any cell with rowspans) */
|
|
nscoord nsTableRowFrame::GetTallestChild() const
|
|
{
|
|
return mTallestCell;
|
|
}
|
|
|
|
nscoord nsTableRowFrame::GetChildMaxTopMargin() const
|
|
{
|
|
return mCellMaxTopMargin;
|
|
}
|
|
|
|
nscoord nsTableRowFrame::GetChildMaxBottomMargin() const
|
|
{
|
|
return mCellMaxBottomMargin;
|
|
}
|
|
|
|
PRInt32 nsTableRowFrame::GetMaxColumns() const
|
|
{
|
|
int sum = 0;
|
|
nsIFrame *cell=mFrames.FirstChild();
|
|
while (nsnull!=cell)
|
|
{
|
|
const nsStyleDisplay *kidDisplay;
|
|
cell->GetStyleData(eStyleStruct_Display, ((const nsStyleStruct *&)kidDisplay));
|
|
if (NS_STYLE_DISPLAY_TABLE_CELL == kidDisplay->mDisplay)
|
|
{
|
|
sum += ((nsTableCellFrame *)cell)->GetColSpan();
|
|
}
|
|
cell->GetNextSibling(&cell);
|
|
}
|
|
return sum;
|
|
}
|
|
|
|
/* GetMinRowSpan is needed for deviant cases where every cell in a row has a rowspan > 1.
|
|
* It sets mMinRowSpan, which is used in FixMinCellHeight and PlaceChild
|
|
*/
|
|
void nsTableRowFrame::GetMinRowSpan(nsTableFrame *aTableFrame)
|
|
{
|
|
PRInt32 minRowSpan=-1;
|
|
nsIFrame *frame=mFrames.FirstChild();
|
|
while (nsnull!=frame)
|
|
{
|
|
const nsStyleDisplay *kidDisplay;
|
|
frame->GetStyleData(eStyleStruct_Display, ((const nsStyleStruct *&)kidDisplay));
|
|
if (NS_STYLE_DISPLAY_TABLE_CELL == kidDisplay->mDisplay)
|
|
{
|
|
PRInt32 rowSpan = aTableFrame->GetEffectiveRowSpan(mRowIndex, ((nsTableCellFrame *)frame));
|
|
if (-1==minRowSpan)
|
|
minRowSpan = rowSpan;
|
|
else if (minRowSpan>rowSpan)
|
|
minRowSpan = rowSpan;
|
|
}
|
|
frame->GetNextSibling(&frame);
|
|
}
|
|
mMinRowSpan = minRowSpan;
|
|
}
|
|
|
|
void nsTableRowFrame::FixMinCellHeight(nsTableFrame *aTableFrame)
|
|
{
|
|
nsIFrame *frame=mFrames.FirstChild();
|
|
while (nsnull!=frame)
|
|
{
|
|
const nsStyleDisplay *kidDisplay;
|
|
frame->GetStyleData(eStyleStruct_Display, ((const nsStyleStruct *&)kidDisplay));
|
|
if (NS_STYLE_DISPLAY_TABLE_CELL == kidDisplay->mDisplay)
|
|
{
|
|
PRInt32 rowSpan = aTableFrame->GetEffectiveRowSpan(mRowIndex, ((nsTableCellFrame *)frame));
|
|
if (mMinRowSpan==rowSpan)
|
|
{
|
|
nsRect rect;
|
|
frame->GetRect(rect);
|
|
if (rect.height > mTallestCell)
|
|
mTallestCell = rect.height;
|
|
}
|
|
}
|
|
frame->GetNextSibling(&frame);
|
|
}
|
|
}
|
|
|
|
// Position and size aKidFrame and update our reflow state. The origin of
|
|
// aKidRect is relative to the upper-left origin of our frame, and includes
|
|
// any left/top margin.
|
|
void nsTableRowFrame::PlaceChild(nsIPresContext& aPresContext,
|
|
RowReflowState& aReflowState,
|
|
nsIFrame* aKidFrame,
|
|
const nsRect& aKidRect,
|
|
nsSize* aMaxElementSize,
|
|
nsSize* aKidMaxElementSize)
|
|
{
|
|
if (PR_TRUE==gsDebug)
|
|
printf ("row: placing cell at %d, %d, %d, %d\n",
|
|
aKidRect.x, aKidRect.y, aKidRect.width, aKidRect.height);
|
|
|
|
// Place and size the child
|
|
aKidFrame->SetRect(aKidRect);
|
|
|
|
// update the running total for the row width
|
|
aReflowState.x += aKidRect.width;
|
|
|
|
// Update the maximum element size
|
|
PRInt32 rowSpan = aReflowState.tableFrame->GetEffectiveRowSpan((nsTableCellFrame*)aKidFrame);
|
|
if (nsnull != aMaxElementSize) {
|
|
aMaxElementSize->width += aKidMaxElementSize->width;
|
|
if (1 == rowSpan) {
|
|
aMaxElementSize->height = PR_MAX(aMaxElementSize->height, aKidMaxElementSize->height);
|
|
}
|
|
}
|
|
|
|
// XXX this will be fixed when row spans deal with dead rows
|
|
#if 0
|
|
// this accounts for cases where all cells in a row have a rowspan>1
|
|
// XXX "numColsInThisRow==numColsInTable" probably isn't the right metric to use here
|
|
// the point is to skip a cell who's span effects another row, maybe use cellmap?
|
|
PRInt32 numColsInThisRow = GetMaxColumns();
|
|
PRInt32 numColsInTable = aReflowState.tableFrame->GetColCount();
|
|
if ((1==rowSpan) || (mMinRowSpan == rowSpan && numColsInThisRow==numColsInTable))
|
|
{
|
|
// Update maxCellHeight
|
|
if (aKidRect.height > aReflowState.maxCellHeight)
|
|
aReflowState.maxCellHeight = aKidRect.height;
|
|
|
|
// Update maxCellVertSpace
|
|
nsMargin margin;
|
|
|
|
if (aReflowState.tableFrame->GetCellMarginData((nsTableCellFrame *)aKidFrame, margin) == NS_OK)
|
|
{
|
|
nscoord height = aKidRect.height + margin.top + margin.bottom;
|
|
|
|
if (height > aReflowState.maxCellVertSpace)
|
|
aReflowState.maxCellVertSpace = height;
|
|
}
|
|
}
|
|
#else
|
|
if (1 == rowSpan) {
|
|
// Update maxCellHeight
|
|
if (aKidRect.height > aReflowState.maxCellHeight)
|
|
aReflowState.maxCellHeight = aKidRect.height;
|
|
|
|
// Update maxCellVertSpace
|
|
nsMargin margin;
|
|
|
|
if (aReflowState.tableFrame->GetCellMarginData((nsTableCellFrame *)aKidFrame, margin) == NS_OK) {
|
|
nscoord height = aKidRect.height + margin.top + margin.bottom;
|
|
|
|
if (height > aReflowState.maxCellVertSpace)
|
|
aReflowState.maxCellVertSpace = height;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* Called for a resize reflow. Typically because the column widths have
|
|
* changed. Reflows all the existing table cell frames unless aDirtyOnly
|
|
* is PR_TRUE in which case only reflow the dirty frames
|
|
*/
|
|
NS_METHOD nsTableRowFrame::ResizeReflow(nsIPresContext& aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
RowReflowState& aReflowState,
|
|
nsReflowStatus& aStatus,
|
|
PRBool aDirtyOnly)
|
|
{
|
|
aStatus = NS_FRAME_COMPLETE;
|
|
if (nsnull == mFrames.FirstChild()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult rv=NS_OK;
|
|
nsSize kidMaxElementSize;
|
|
nsSize* pKidMaxElementSize = (nsnull != aDesiredSize.maxElementSize) ?
|
|
&kidMaxElementSize : nsnull;
|
|
nscoord maxCellTopMargin = 0;
|
|
nscoord maxCellBottomMargin = 0;
|
|
nscoord cellSpacingX = aReflowState.tableFrame->GetCellSpacingX();
|
|
PRInt32 cellColSpan=1; // must be defined here so it's set properly for non-cell kids
|
|
if (PR_TRUE==gsDebug) printf("Row %p: Resize Reflow\n", this);
|
|
|
|
PRInt32 prevColIndex; // remember the col index of the previous cell to handle rowspans into this row
|
|
|
|
nsTableIteration dir = (aReflowState.reflowState.availableWidth == NS_UNCONSTRAINEDSIZE)
|
|
? eTableLTR : eTableDIR;
|
|
nsTableIterator iter(*this, dir);
|
|
if (iter.IsLeftToRight()) {
|
|
prevColIndex = -1;
|
|
}
|
|
else {
|
|
nsTableFrame* tableFrame = nsnull;
|
|
rv = nsTableFrame::GetTableFrame(this, tableFrame);
|
|
if (NS_FAILED(rv) || (nsnull == tableFrame)) {
|
|
return rv;
|
|
}
|
|
prevColIndex = tableFrame->GetColCount();
|
|
}
|
|
|
|
// Reflow each of our existing cell frames
|
|
nsIFrame* kidFrame = iter.First();
|
|
while (nsnull != kidFrame) {
|
|
// Get the frame state bits
|
|
nsFrameState frameState;
|
|
kidFrame->GetFrameState(&frameState);
|
|
|
|
// See if we should only reflow the dirty child frames
|
|
PRBool doReflowChild = PR_TRUE;
|
|
if (aDirtyOnly) {
|
|
if ((frameState & NS_FRAME_IS_DIRTY) == 0) {
|
|
doReflowChild = PR_FALSE;
|
|
}
|
|
}
|
|
|
|
// Reflow the child frame
|
|
if (doReflowChild) {
|
|
const nsStyleDisplay *kidDisplay;
|
|
kidFrame->GetStyleData(eStyleStruct_Display, ((const nsStyleStruct *&)kidDisplay));
|
|
if (NS_STYLE_DISPLAY_TABLE_CELL == kidDisplay->mDisplay) {
|
|
PRInt32 cellColIndex;
|
|
((nsTableCellFrame *)kidFrame)->GetColIndex(cellColIndex);
|
|
cellColSpan = aReflowState.tableFrame->GetEffectiveColSpan(cellColIndex,
|
|
((nsTableCellFrame *)kidFrame));
|
|
nsMargin kidMargin;
|
|
aReflowState.tableFrame->GetCellMarginData((nsTableCellFrame *)kidFrame,kidMargin);
|
|
if (kidMargin.top > maxCellTopMargin)
|
|
maxCellTopMargin = kidMargin.top;
|
|
if (kidMargin.bottom > maxCellBottomMargin)
|
|
maxCellBottomMargin = kidMargin.bottom;
|
|
|
|
// Compute the x-origin for the child, taking into account straddlers (cells from prior
|
|
// rows with rowspans > 1)
|
|
// if this cell is not immediately adjacent to the previous cell, factor in missing col info
|
|
if (iter.IsLeftToRight()) {
|
|
if (prevColIndex != (cellColIndex - 1)) {
|
|
for (PRInt32 colIndex = prevColIndex + 1; cellColIndex > colIndex; colIndex++) {
|
|
aReflowState.x += aReflowState.tableFrame->GetColumnWidth(colIndex);
|
|
if (aReflowState.tableFrame->GetNumCellsOriginatingIn(colIndex) > 0) {
|
|
aReflowState.x += cellSpacingX;
|
|
}
|
|
if (PR_TRUE==gsDebug)
|
|
printf(" Row: in loop, aReflowState.x set to %d from cellSpacing %d and col width %d\n",
|
|
aReflowState.x, cellSpacingX, aReflowState.tableFrame->GetColumnWidth(colIndex));
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
if (prevColIndex != cellColIndex + cellColSpan) {
|
|
PRInt32 lastCol = cellColIndex + cellColSpan - 1;
|
|
for (PRInt32 colIndex = prevColIndex - 1; colIndex > lastCol; colIndex--) {
|
|
aReflowState.x += aReflowState.tableFrame->GetColumnWidth(colIndex);
|
|
if (aReflowState.tableFrame->GetNumCellsOriginatingIn(colIndex) > 0) {
|
|
aReflowState.x += cellSpacingX;
|
|
}
|
|
if (PR_TRUE==gsDebug)
|
|
printf(" Row: in loop, aReflowState.x set to %d from cellSpacing %d and col width %d\n",
|
|
aReflowState.x, cellSpacingX, aReflowState.tableFrame->GetColumnWidth(colIndex));
|
|
}
|
|
}
|
|
}
|
|
|
|
aReflowState.x += cellSpacingX;
|
|
if (PR_TRUE==gsDebug) printf(" Row: past loop, aReflowState.x set to %d\n", aReflowState.x);
|
|
|
|
// at this point, we know the column widths.
|
|
// so we get the avail width from the known column widths
|
|
nscoord availWidth = 0;
|
|
for (PRInt32 numColSpan=0; numColSpan<cellColSpan; numColSpan++) {
|
|
availWidth += aReflowState.tableFrame->GetColumnWidth(cellColIndex+numColSpan);
|
|
if ((numColSpan != 0) && (aReflowState.tableFrame->GetNumCellsOriginatingIn(cellColIndex + numColSpan) > 0)) {
|
|
availWidth += cellSpacingX;
|
|
}
|
|
if (PR_TRUE==gsDebug) {
|
|
printf(" Row: in loop, availWidth set to %d from colIndex %d width %d and cellSpacing\n",
|
|
availWidth, cellColIndex, aReflowState.tableFrame->GetColumnWidth(cellColIndex+numColSpan));
|
|
}
|
|
}
|
|
if (PR_TRUE==gsDebug) printf(" Row: availWidth for this cell is %d\n", availWidth);
|
|
// remember the rightmost (ltr) or leftmost (rtl) column this cell spans into
|
|
prevColIndex = (iter.IsLeftToRight()) ? cellColIndex + (cellColSpan - 1) : cellColIndex;
|
|
nsHTMLReflowMetrics desiredSize(pKidMaxElementSize);
|
|
|
|
// If the available width is the same as last time we reflowed the cell,
|
|
// then just use the previous desired size and max element size.
|
|
// if we need the max-element-size we don't need to reflow.
|
|
// we just grab it from the cell frame which remembers it (see the else clause below).
|
|
// Note: we can't do that optimization if our height is constrained or the
|
|
// cell frame has a next-in-flow
|
|
nsIFrame* kidNextInFlow;
|
|
kidFrame->GetNextInFlow(&kidNextInFlow);
|
|
if ((aReflowState.reflowState.availableHeight != NS_UNCONSTRAINEDSIZE) ||
|
|
(availWidth != ((nsTableCellFrame *)kidFrame)->GetPriorAvailWidth()) ||
|
|
(nsnull != kidNextInFlow))
|
|
{
|
|
// Reflow the cell to fit the available height
|
|
nsSize kidAvailSize(availWidth, aReflowState.reflowState.availableHeight);
|
|
nsSize kidMaxElementSize(0,0);
|
|
|
|
// If it's a dirty frame, then check whether it's the initial reflow
|
|
nsReflowReason reason = eReflowReason_Resize;
|
|
if (aDirtyOnly) {
|
|
if (frameState & NS_FRAME_FIRST_REFLOW) {
|
|
// Newly inserted frame
|
|
reason = eReflowReason_Initial;
|
|
|
|
// Use an unconstrained width so we can get the child's maximum
|
|
// width
|
|
// XXX What about fixed layout tables?
|
|
kidAvailSize.SizeTo(NS_UNCONSTRAINEDSIZE, NS_UNCONSTRAINEDSIZE);
|
|
desiredSize.maxElementSize=&kidMaxElementSize;
|
|
}
|
|
}
|
|
|
|
// Reflow the child
|
|
nsHTMLReflowState kidReflowState(aPresContext,
|
|
aReflowState.reflowState, kidFrame,
|
|
kidAvailSize,
|
|
reason);
|
|
if (gsDebug) printf ("Row %p RR: avail=%d\n", this, availWidth);
|
|
nsReflowStatus status;
|
|
rv = ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState, status);
|
|
if (gsDebug) printf ("Row %p RR: desired=%d\n", this, desiredSize.width);
|
|
#ifdef NS_DEBUG
|
|
if (desiredSize.width > availWidth)
|
|
{
|
|
printf("WARNING: cell returned desired width %d given avail width %d\n",
|
|
desiredSize.width, availWidth);
|
|
}
|
|
#endif
|
|
|
|
if (eReflowReason_Initial == reason) {
|
|
// Save the pass1 reflow information
|
|
((nsTableCellFrame *)kidFrame)->SetPass1DesiredSize(desiredSize);
|
|
((nsTableCellFrame *)kidFrame)->SetPass1MaxElementSize(kidMaxElementSize);
|
|
}
|
|
|
|
// 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;
|
|
}
|
|
|
|
if (gsDebug)
|
|
{
|
|
if (nsnull!=pKidMaxElementSize)
|
|
printf("Row: reflow of cell returned result = %s with desired=%d,%d, min = %d,%d\n",
|
|
NS_FRAME_IS_COMPLETE(status)?"complete":"NOT complete",
|
|
desiredSize.width, desiredSize.height,
|
|
pKidMaxElementSize->width, pKidMaxElementSize->height);
|
|
else
|
|
printf("Row: reflow of cell returned result = %s with desired=%d,%d, min = nsnull\n",
|
|
NS_FRAME_IS_COMPLETE(status)?"complete":"NOT complete",
|
|
desiredSize.width, desiredSize.height);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
nsSize priorSize = ((nsTableCellFrame *)kidFrame)->GetDesiredSize();
|
|
desiredSize.width = priorSize.width;
|
|
desiredSize.height = priorSize.height;
|
|
if (nsnull != pKidMaxElementSize)
|
|
*pKidMaxElementSize = ((nsTableCellFrame *)kidFrame)->GetPass1MaxElementSize();
|
|
}
|
|
|
|
// Place the child after taking into account its margin and attributes
|
|
nscoord specifiedHeight = 0;
|
|
nscoord cellHeight = desiredSize.height;
|
|
nsIStyleContextPtr kidSC;
|
|
kidFrame->GetStyleContext(kidSC.AssignPtr());
|
|
const nsStylePosition* kidPosition = (const nsStylePosition*)
|
|
kidSC->GetStyleData(eStyleStruct_Position);
|
|
switch (kidPosition->mHeight.GetUnit()) {
|
|
case eStyleUnit_Coord:
|
|
specifiedHeight = kidPosition->mHeight.GetCoordValue();
|
|
break;
|
|
|
|
case eStyleUnit_Inherit:
|
|
// XXX for now, do nothing
|
|
default:
|
|
case eStyleUnit_Auto:
|
|
break;
|
|
}
|
|
if (specifiedHeight>cellHeight)
|
|
cellHeight = specifiedHeight;
|
|
|
|
nscoord cellWidth = desiredSize.width;
|
|
// begin special Nav4 compatibility code
|
|
if (0==cellWidth)
|
|
{
|
|
cellWidth = availWidth;
|
|
}
|
|
// end special Nav4 compatibility code
|
|
|
|
// Place the child
|
|
nsRect kidRect (aReflowState.x, kidMargin.top, cellWidth, cellHeight);
|
|
|
|
PlaceChild(aPresContext, aReflowState, kidFrame, kidRect, aDesiredSize.maxElementSize,
|
|
pKidMaxElementSize);
|
|
|
|
if (PR_TRUE==gsDebug) printf("Row: past PlaceChild, aReflowState.x set to %d\n", aReflowState.x);
|
|
}
|
|
else
|
|
{// it's an unknown frame type, give it a generic reflow and ignore the results
|
|
nsHTMLReflowState kidReflowState(aPresContext, aReflowState.reflowState,
|
|
kidFrame,
|
|
nsSize(0,0), eReflowReason_Resize);
|
|
nsHTMLReflowMetrics desiredSize(nsnull);
|
|
if (PR_TRUE==gsDebug) printf("\nRow: Resize Reflow of unknown frame %p of type %d with reason=%d\n",
|
|
kidFrame, kidDisplay->mDisplay, eReflowReason_Resize);
|
|
nsReflowStatus status;
|
|
ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState, status);
|
|
}
|
|
}
|
|
|
|
kidFrame = iter.Next(); // Get the next child
|
|
// if this was the last child, and it had a colspan>1, add in the cellSpacing for the colspan
|
|
// if the last kid wasn't a colspan, then we still have the colspan of the last real cell
|
|
if ((nsnull==kidFrame) && (cellColSpan>1))
|
|
aReflowState.x += cellSpacingX;
|
|
}
|
|
|
|
SetMaxChildHeight(aReflowState.maxCellHeight,maxCellTopMargin, maxCellBottomMargin); // remember height of tallest child who doesn't have a row span
|
|
|
|
// Return our desired size. Note that our desired width is just whatever width
|
|
// we were given by the row group frame
|
|
aDesiredSize.width = aReflowState.x;
|
|
aDesiredSize.height = aReflowState.maxCellVertSpace;
|
|
#ifdef DEBUG
|
|
nscoord overAllocated = aDesiredSize.width - aReflowState.reflowState.availableWidth;
|
|
if (overAllocated > 0) {
|
|
float p2t;
|
|
aPresContext.GetScaledPixelsToTwips(&p2t);
|
|
if (overAllocated > p2t) {
|
|
printf("row over allocated by %d twips", overAllocated);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (gsDebug)
|
|
printf("Row: RR -- row %p width = %d from maxSize %d\n",
|
|
this, aDesiredSize.width, aReflowState.reflowState.availableWidth);
|
|
|
|
return rv;
|
|
}
|
|
|
|
/**
|
|
* Called for the initial reflow. Creates each table cell frame, and
|
|
* reflows it to gets its minimum and maximum sizes
|
|
*/
|
|
NS_METHOD
|
|
nsTableRowFrame::InitialReflow(nsIPresContext& aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
RowReflowState& aReflowState,
|
|
nsReflowStatus& aStatus,
|
|
nsTableCellFrame * aStartFrame,
|
|
PRBool aDoSiblings)
|
|
{
|
|
// Place our children, one at a time, until we are out of children
|
|
nsSize kidMaxElementSize(0,0);
|
|
nscoord maxTopMargin = 0;
|
|
nscoord maxBottomMargin = 0;
|
|
nscoord x = 0;
|
|
PRBool tableLayoutStrategy=NS_STYLE_TABLE_LAYOUT_AUTO;
|
|
nsTableFrame* table = aReflowState.tableFrame;
|
|
nsresult rv = NS_OK;
|
|
const nsStyleTable* tableStyle;
|
|
table->GetStyleData(eStyleStruct_Table, (const nsStyleStruct *&)tableStyle);
|
|
tableLayoutStrategy = tableStyle->mLayoutStrategy;
|
|
|
|
nsIFrame* kidFrame;
|
|
if (nsnull==aStartFrame)
|
|
kidFrame = mFrames.FirstChild();
|
|
else
|
|
kidFrame = aStartFrame;
|
|
|
|
for ( ; nsnull != kidFrame; kidFrame->GetNextSibling(&kidFrame))
|
|
{
|
|
const nsStyleDisplay *kidDisplay;
|
|
kidFrame->GetStyleData(eStyleStruct_Display, ((const nsStyleStruct *&)kidDisplay));
|
|
if (NS_STYLE_DISPLAY_TABLE_CELL == kidDisplay->mDisplay)
|
|
{
|
|
// Get the child's margins
|
|
nsMargin margin;
|
|
nscoord topMargin = 0;
|
|
if (aReflowState.tableFrame->GetCellMarginData((nsTableCellFrame *)kidFrame, margin) == NS_OK)
|
|
{
|
|
topMargin = margin.top;
|
|
}
|
|
maxTopMargin = PR_MAX(margin.top, maxTopMargin);
|
|
maxBottomMargin = PR_MAX(margin.bottom, maxBottomMargin);
|
|
|
|
// get border padding values
|
|
nsMargin borderPadding;
|
|
const nsStyleSpacing* cellSpacingStyle;
|
|
kidFrame->GetStyleData(eStyleStruct_Spacing , ((const nsStyleStruct *&)cellSpacingStyle));
|
|
cellSpacingStyle->CalcBorderPaddingFor(kidFrame, borderPadding);
|
|
|
|
// For the initial reflow always allow the child to be as high as it
|
|
// wants. The default available width is also unconstrained so we can
|
|
// get the child's maximum width
|
|
nsSize kidAvailSize;
|
|
nsHTMLReflowMetrics kidSize(nsnull);
|
|
if (NS_STYLE_TABLE_LAYOUT_AUTO==tableLayoutStrategy)
|
|
{
|
|
kidAvailSize.SizeTo(NS_UNCONSTRAINEDSIZE, NS_UNCONSTRAINEDSIZE);
|
|
kidSize.maxElementSize=&kidMaxElementSize;
|
|
}
|
|
else
|
|
{
|
|
PRInt32 colIndex;
|
|
((nsTableCellFrame *)kidFrame)->GetColIndex(colIndex);
|
|
kidAvailSize.SizeTo(table->GetColumnWidth(colIndex), NS_UNCONSTRAINEDSIZE);
|
|
}
|
|
|
|
nsHTMLReflowState kidReflowState(aPresContext,
|
|
aReflowState.reflowState,
|
|
kidFrame, kidAvailSize,
|
|
eReflowReason_Initial);
|
|
|
|
if (gsDebug) printf ("%p InitR: avail=%d\n", this, kidAvailSize.width);
|
|
rv = ReflowChild(kidFrame, aPresContext, kidSize, kidReflowState, aStatus);
|
|
if (gsDebug)
|
|
printf ("TR %p for cell %p Initial Reflow: desired=%d, MES=%d\n",
|
|
this, kidFrame, kidSize.width, kidMaxElementSize.width);
|
|
|
|
// the following signals bugs in the content frames.
|
|
if (kidMaxElementSize.width > kidSize.width) {
|
|
printf("WARNING - table cell content max element width %d greater than desired width %d\n",
|
|
kidMaxElementSize.width, kidSize.width);
|
|
kidSize.width = kidMaxElementSize.width;
|
|
}
|
|
if (kidMaxElementSize.height > kidSize.height) {
|
|
printf("Warning - table cell content max element height %d greater than desired height %d\n",
|
|
kidMaxElementSize.height, kidSize.height);
|
|
kidSize.height = kidMaxElementSize.height;
|
|
}
|
|
|
|
((nsTableCellFrame *)kidFrame)->SetPass1DesiredSize(kidSize);
|
|
((nsTableCellFrame *)kidFrame)->SetPass1MaxElementSize(kidMaxElementSize);
|
|
NS_ASSERTION(NS_FRAME_IS_COMPLETE(aStatus), "unexpected child reflow status");
|
|
|
|
if (gsDebug)
|
|
{
|
|
printf("reflow of cell returned result = %s with desired=%d,%d, min = %d,%d\n",
|
|
NS_FRAME_IS_COMPLETE(aStatus)?"complete":"NOT complete",
|
|
kidSize.width, kidSize.height,
|
|
kidMaxElementSize.width, kidMaxElementSize.height);
|
|
}
|
|
|
|
// Place the child
|
|
x += margin.left;
|
|
nsRect kidRect(x, topMargin, kidSize.width, kidSize.height);
|
|
PlaceChild(aPresContext, aReflowState, kidFrame, kidRect, aDesiredSize.maxElementSize,
|
|
&kidMaxElementSize);
|
|
x += kidSize.width + margin.right;
|
|
}
|
|
else
|
|
{// it's an unknown frame type, give it a generic reflow and ignore the results
|
|
nsHTMLReflowState kidReflowState(aPresContext, aReflowState.reflowState,
|
|
kidFrame, nsSize(0,0), eReflowReason_Initial);
|
|
nsHTMLReflowMetrics desiredSize(nsnull);
|
|
if (PR_TRUE==gsDebug) printf("\nTIF : Reflow Pass 2 of unknown frame %p of type %d with reason=%d\n",
|
|
kidFrame, kidDisplay->mDisplay, eReflowReason_Initial);
|
|
ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState, aStatus);
|
|
}
|
|
if (PR_FALSE==aDoSiblings)
|
|
break;
|
|
}
|
|
|
|
SetMaxChildHeight(aReflowState.maxCellHeight, maxTopMargin, maxBottomMargin); // remember height of tallest child who doesn't have a row span
|
|
|
|
// Return our desired size
|
|
aDesiredSize.width = x;
|
|
aDesiredSize.height = aReflowState.maxCellVertSpace;
|
|
|
|
return rv;
|
|
}
|
|
|
|
// Recover the reflow state to what it should be if aKidFrame is about
|
|
// to be reflowed
|
|
//
|
|
// The things in the RowReflowState object we need to restore are:
|
|
// - maxCellHeight
|
|
// - maxVertCellSpace
|
|
// - x
|
|
NS_METHOD nsTableRowFrame::RecoverState(nsIPresContext& aPresContext,
|
|
RowReflowState& aReflowState,
|
|
nsIFrame* aKidFrame,
|
|
nscoord& aMaxCellTopMargin,
|
|
nscoord& aMaxCellBottomMargin)
|
|
{
|
|
aMaxCellTopMargin = aMaxCellBottomMargin = 0;
|
|
|
|
// Walk the list of children looking for aKidFrame. While we're at
|
|
// it get the maxCellHeight and maxVertCellSpace for all the
|
|
// frames except aKidFrame
|
|
for (nsIFrame* frame = mFrames.FirstChild(); nsnull != frame;)
|
|
{
|
|
const nsStyleDisplay *kidDisplay;
|
|
frame->GetStyleData(eStyleStruct_Display, ((const nsStyleStruct *&)kidDisplay));
|
|
if (NS_STYLE_DISPLAY_TABLE_CELL == kidDisplay->mDisplay)
|
|
{
|
|
if (frame != aKidFrame) {
|
|
// Update the max top and bottom margins
|
|
nsMargin kidMargin;
|
|
aReflowState.tableFrame->GetCellMarginData((nsTableCellFrame *)frame, kidMargin);
|
|
if (kidMargin.top > aMaxCellTopMargin)
|
|
aMaxCellTopMargin = kidMargin.top;
|
|
if (kidMargin.bottom > aMaxCellBottomMargin)
|
|
aMaxCellBottomMargin = kidMargin.bottom;
|
|
|
|
PRInt32 rowSpan = aReflowState.tableFrame->GetEffectiveRowSpan(mRowIndex, ((nsTableCellFrame *)frame));
|
|
if (mMinRowSpan == rowSpan) {
|
|
// Get the cell's desired height the last time it was reflowed
|
|
nsSize desiredSize = ((nsTableCellFrame *)frame)->GetDesiredSize();
|
|
|
|
// See if it has a specified height that overrides the desired size
|
|
nscoord specifiedHeight = 0;
|
|
nsIStyleContextPtr kidSC;
|
|
frame->GetStyleContext(kidSC.AssignPtr());
|
|
const nsStylePosition* kidPosition = (const nsStylePosition*)
|
|
kidSC->GetStyleData(eStyleStruct_Position);
|
|
switch (kidPosition->mHeight.GetUnit()) {
|
|
case eStyleUnit_Coord:
|
|
specifiedHeight = kidPosition->mHeight.GetCoordValue();
|
|
break;
|
|
|
|
case eStyleUnit_Inherit:
|
|
// XXX for now, do nothing
|
|
default:
|
|
case eStyleUnit_Auto:
|
|
break;
|
|
}
|
|
if (specifiedHeight > desiredSize.height)
|
|
desiredSize.height = specifiedHeight;
|
|
|
|
// Update maxCellHeight
|
|
if (desiredSize.height > aReflowState.maxCellHeight) {
|
|
aReflowState.maxCellHeight = desiredSize.height;
|
|
}
|
|
|
|
// Update maxCellVertHeight
|
|
nsMargin margin;
|
|
|
|
if (aReflowState.tableFrame->GetCellMarginData((nsTableCellFrame *)frame, margin) == NS_OK)
|
|
{
|
|
nscoord height = desiredSize.height + margin.top + margin.bottom;
|
|
if (height > aReflowState.maxCellVertSpace) {
|
|
aReflowState.maxCellVertSpace = height;
|
|
}
|
|
}
|
|
}
|
|
|
|
// XXX We also need to recover the max element size if requested by the
|
|
// caller...
|
|
//
|
|
// We should be using GetReflowMetrics() to get information from the
|
|
// table cell, and that will include the max element size...
|
|
}
|
|
}
|
|
|
|
frame->GetNextSibling(&frame);
|
|
}
|
|
|
|
// Update the running x-offset based on the frame's current x-origin
|
|
nsPoint origin;
|
|
aKidFrame->GetOrigin(origin);
|
|
aReflowState.x = origin.x;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
|
|
NS_METHOD nsTableRowFrame::IncrementalReflow(nsIPresContext& aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
RowReflowState& aReflowState,
|
|
nsReflowStatus& aStatus)
|
|
{
|
|
if (PR_TRUE==gsDebugIR) printf("\nTRF IR: IncrementalReflow\n");
|
|
nsresult rv = NS_OK;
|
|
|
|
// determine if this frame is the target or not
|
|
nsIFrame *target=nsnull;
|
|
rv = aReflowState.reflowState.reflowCommand->GetTarget(target);
|
|
if ((PR_TRUE==NS_SUCCEEDED(rv)) && (nsnull!=target))
|
|
{
|
|
if (this==target)
|
|
rv = IR_TargetIsMe(aPresContext, aDesiredSize, aReflowState, aStatus);
|
|
else
|
|
{
|
|
// Get the next frame in the reflow chain
|
|
nsIFrame* nextFrame;
|
|
aReflowState.reflowState.reflowCommand->GetNext(nextFrame);
|
|
rv = IR_TargetIsChild(aPresContext, aDesiredSize, aReflowState, aStatus, nextFrame);
|
|
}
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
NS_METHOD nsTableRowFrame::IR_TargetIsMe(nsIPresContext& aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
RowReflowState& aReflowState,
|
|
nsReflowStatus& aStatus)
|
|
{
|
|
nsresult rv = NS_FRAME_COMPLETE;
|
|
nsIReflowCommand::ReflowType type;
|
|
aReflowState.reflowState.reflowCommand->GetType(type);
|
|
nsIFrame *objectFrame;
|
|
aReflowState.reflowState.reflowCommand->GetChildFrame(objectFrame);
|
|
const nsStyleDisplay *childDisplay=nsnull;
|
|
if (nsnull!=objectFrame)
|
|
objectFrame->GetStyleData(eStyleStruct_Display, ((const nsStyleStruct *&)childDisplay));
|
|
if (PR_TRUE==gsDebugIR) printf("TRF IR: IncrementalReflow_TargetIsMe with type=%d\n", type);
|
|
switch (type)
|
|
{
|
|
case nsIReflowCommand::ReflowDirty:
|
|
{
|
|
// Reflow the dirty child frames. Typically this is newly added frames.
|
|
// XXX What we really should do is do a pass-1 reflow of newly added
|
|
// frames (only if necessary, i.e., the table isn't fixed layout), then
|
|
// see if column widtsh changed and decide whether to do the pass-2 reflow
|
|
// of just the dirty rows or have the table rebalance column widths and
|
|
// do a pass-2 reflow of all rows
|
|
rv = ResizeReflow(aPresContext, aDesiredSize, aReflowState, aStatus, PR_TRUE);
|
|
|
|
// If any column widths have to change due to this, rebalance column widths.
|
|
// XXX need to calculate this, but for now just do it
|
|
aReflowState.tableFrame->InvalidateColumnWidths();
|
|
break;
|
|
}
|
|
|
|
case nsIReflowCommand::StyleChanged :
|
|
rv = IR_StyleChanged(aPresContext, aDesiredSize, aReflowState, aStatus);
|
|
break;
|
|
|
|
case nsIReflowCommand::ContentChanged :
|
|
NS_ASSERTION(PR_FALSE, "illegal reflow type: ContentChanged");
|
|
rv = NS_ERROR_ILLEGAL_VALUE;
|
|
break;
|
|
|
|
default:
|
|
NS_NOTYETIMPLEMENTED("unexpected reflow command type");
|
|
rv = NS_ERROR_NOT_IMPLEMENTED;
|
|
if (PR_TRUE==gsDebugIR) printf("TRF IR: unexpected reflow command not implemented.\n");
|
|
break;
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
NS_METHOD nsTableRowFrame::IR_StyleChanged(nsIPresContext& aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
RowReflowState& aReflowState,
|
|
nsReflowStatus& aStatus)
|
|
{
|
|
if (PR_TRUE==gsDebugIR) printf("Row: IR_StyleChanged for frame %p\n", this);
|
|
nsresult rv = NS_OK;
|
|
// we presume that all the easy optimizations were done in the nsHTMLStyleSheet before we were called here
|
|
// XXX: we can optimize this when we know which style attribute changed
|
|
aReflowState.tableFrame->InvalidateFirstPassCache();
|
|
return rv;
|
|
}
|
|
|
|
NS_METHOD nsTableRowFrame::IR_TargetIsChild(nsIPresContext& aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
RowReflowState& aReflowState,
|
|
nsReflowStatus& aStatus,
|
|
nsIFrame * aNextFrame)
|
|
|
|
{
|
|
nsresult rv;
|
|
|
|
const nsStyleDisplay *childDisplay;
|
|
aNextFrame->GetStyleData(eStyleStruct_Display, ((const nsStyleStruct *&)childDisplay));
|
|
if (NS_STYLE_DISPLAY_TABLE_CELL == childDisplay->mDisplay)
|
|
{
|
|
// Recover our reflow state
|
|
nscoord maxCellTopMargin, maxCellBottomMargin;
|
|
RecoverState(aPresContext, aReflowState, aNextFrame, maxCellTopMargin, maxCellBottomMargin);
|
|
|
|
// Get the frame's margins
|
|
nsMargin kidMargin;
|
|
aReflowState.tableFrame->GetCellMarginData((nsTableCellFrame *)aNextFrame, kidMargin);
|
|
if (kidMargin.top > maxCellTopMargin)
|
|
maxCellTopMargin = kidMargin.top;
|
|
if (kidMargin.bottom > maxCellBottomMargin)
|
|
maxCellBottomMargin = kidMargin.bottom;
|
|
|
|
// At this point, we know the column widths. Get the available width
|
|
// from the known column widths
|
|
PRInt32 cellColIndex;
|
|
((nsTableCellFrame *)aNextFrame)->GetColIndex(cellColIndex);
|
|
PRInt32 cellColSpan = aReflowState.tableFrame->GetEffectiveColSpan(cellColIndex,
|
|
((nsTableCellFrame *)aNextFrame));
|
|
nscoord availWidth = 0;
|
|
for (PRInt32 numColSpan = 0; numColSpan < cellColSpan; numColSpan++)
|
|
{
|
|
availWidth += aReflowState.tableFrame->GetColumnWidth(cellColIndex+numColSpan);
|
|
if (0<numColSpan)
|
|
{
|
|
availWidth += kidMargin.right;
|
|
if (0!=cellColIndex)
|
|
availWidth += kidMargin.left;
|
|
}
|
|
}
|
|
|
|
// Always let the cell be as high as it wants. We ignore the height that's
|
|
// passed in and always place the entire row. Let the row group decide
|
|
// whether we fit or wehther the entire row is pushed
|
|
nsSize kidAvailSize(availWidth, NS_UNCONSTRAINEDSIZE);
|
|
|
|
// Pass along the reflow command
|
|
nsSize kidMaxElementSize;
|
|
nsHTMLReflowMetrics desiredSize(&kidMaxElementSize);
|
|
nsHTMLReflowState kidReflowState(aPresContext,
|
|
aReflowState.reflowState,
|
|
aNextFrame, kidAvailSize);
|
|
|
|
// Unfortunately we need to reflow the child several times.
|
|
// The first time is for the incremental reflow command. We can't pass in
|
|
// a max width of NS_UNCONSTRAINEDSIZE, because the max width must match
|
|
// the width of the previous reflow...
|
|
rv = ReflowChild(aNextFrame, aPresContext, desiredSize, kidReflowState, aStatus);
|
|
|
|
// Now do the regular pass 1 reflow and gather the max width and max element
|
|
// size.
|
|
// XXX It would be nice if we could skip this step and the next step if the
|
|
// column width isn't dependent on the max cell width...
|
|
kidReflowState.reason = eReflowReason_Initial;
|
|
kidReflowState.reflowCommand = nsnull;
|
|
kidReflowState.availableWidth = NS_UNCONSTRAINEDSIZE;
|
|
rv = ReflowChild(aNextFrame, aPresContext, desiredSize, kidReflowState, aStatus);
|
|
if (gsDebug)
|
|
printf ("TR %p for cell %p Incremental Reflow: desired=%d, MES=%d\n",
|
|
this, aNextFrame, desiredSize.width, kidMaxElementSize.width);
|
|
// Update the cell layout data.
|
|
//XXX: this is a hack, shouldn't it be the case that a min size is
|
|
// never larger than a desired size?
|
|
if (kidMaxElementSize.width>desiredSize.width)
|
|
desiredSize.width = kidMaxElementSize.width;
|
|
if (kidMaxElementSize.height>desiredSize.height)
|
|
desiredSize.height = kidMaxElementSize.height;
|
|
((nsTableCellFrame *)aNextFrame)->SetPass1DesiredSize(desiredSize);
|
|
((nsTableCellFrame *)aNextFrame)->SetPass1MaxElementSize(kidMaxElementSize);
|
|
// Now reflow the cell again this time constraining the width
|
|
// XXX Ignore for now the possibility that the column width has changed...
|
|
kidReflowState.availableWidth = availWidth;
|
|
rv = ReflowChild(aNextFrame, aPresContext, desiredSize, kidReflowState, aStatus);
|
|
|
|
// Place the child after taking into account it's margin and attributes
|
|
// XXX We need to ask the table (or the table layout strategy) if the column
|
|
// widths have changed. If so, we just bail and return a status indicating
|
|
// what happened and let the table reflow all the table cells...
|
|
nscoord specifiedHeight = 0;
|
|
nscoord cellHeight = desiredSize.height;
|
|
nsIStyleContextPtr kidSC;
|
|
aNextFrame->GetStyleContext(kidSC.AssignPtr());
|
|
const nsStylePosition* kidPosition = (const nsStylePosition*)
|
|
kidSC->GetStyleData(eStyleStruct_Position);
|
|
switch (kidPosition->mHeight.GetUnit()) {
|
|
case eStyleUnit_Coord:
|
|
specifiedHeight = kidPosition->mHeight.GetCoordValue();
|
|
break;
|
|
|
|
case eStyleUnit_Inherit:
|
|
// XXX for now, do nothing
|
|
default:
|
|
case eStyleUnit_Auto:
|
|
break;
|
|
}
|
|
if (specifiedHeight>cellHeight)
|
|
cellHeight = specifiedHeight;
|
|
|
|
nscoord cellWidth = desiredSize.width;
|
|
// begin special Nav4 compatibility code
|
|
if (0==cellWidth)
|
|
{
|
|
cellWidth = aReflowState.tableFrame->GetColumnWidth(cellColIndex);
|
|
}
|
|
// end special Nav4 compatibility code
|
|
|
|
// Now place the child
|
|
nsRect kidRect (aReflowState.x, kidMargin.top, cellWidth, cellHeight);
|
|
|
|
PlaceChild(aPresContext, aReflowState, aNextFrame, kidRect, aDesiredSize.maxElementSize,
|
|
&kidMaxElementSize);
|
|
|
|
SetMaxChildHeight(aReflowState.maxCellHeight, maxCellTopMargin, maxCellBottomMargin);
|
|
|
|
// Return our desired size. Note that our desired width is just whatever width
|
|
// we were given by the row group frame
|
|
aDesiredSize.width = aReflowState.availSize.width;
|
|
aDesiredSize.height = aReflowState.maxCellVertSpace;
|
|
|
|
if (gsDebug)
|
|
printf("incr -- row %p width = %d MES=%d from maxSize %d\n",
|
|
this, aDesiredSize.width,
|
|
aDesiredSize.maxElementSize ? aDesiredSize.maxElementSize->width : -1,
|
|
aReflowState.reflowState.availableWidth);
|
|
}
|
|
else
|
|
{ // pass reflow to unknown frame child
|
|
// aDesiredSize does not change
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
|
|
/** Layout the entire row.
|
|
* This method stacks cells horizontally according to HTML 4.0 rules.
|
|
*/
|
|
NS_METHOD
|
|
nsTableRowFrame::Reflow(nsIPresContext& aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus)
|
|
{
|
|
nsresult rv=NS_OK;
|
|
if (gsDebug==PR_TRUE)
|
|
printf("nsTableRowFrame::Reflow - aMaxSize = %d, %d\n",
|
|
aReflowState.availableWidth, aReflowState.availableHeight);
|
|
|
|
// Initialize 'out' parameters (aStatus set below, undefined if rv returns an error)
|
|
if (nsnull != aDesiredSize.maxElementSize) {
|
|
aDesiredSize.maxElementSize->width = 0;
|
|
aDesiredSize.maxElementSize->height = 0;
|
|
}
|
|
|
|
// Initialize our internal data
|
|
ResetMaxChildHeight();
|
|
|
|
// Create a reflow state
|
|
nsTableFrame *tableFrame=nsnull;
|
|
rv = nsTableFrame::GetTableFrame(this, tableFrame);
|
|
if (NS_FAILED(rv) || nsnull==tableFrame)
|
|
return rv;
|
|
RowReflowState state(aReflowState, tableFrame);
|
|
|
|
// Do the reflow
|
|
// XXX If the width is unconstrained, then treat it like we would treat the
|
|
// initial reflow instead. This needs to be cleaned up
|
|
nsReflowReason reason = aReflowState.reason;
|
|
if (NS_UNCONSTRAINEDSIZE == aReflowState.availableWidth) {
|
|
reason = eReflowReason_Initial;
|
|
}
|
|
|
|
switch (reason) {
|
|
case eReflowReason_Initial:
|
|
rv = InitialReflow(aPresContext, aDesiredSize, state, aStatus, nsnull, PR_TRUE);
|
|
if (PR_FALSE==tableFrame->RequiresPass1Layout())
|
|
{ // this resize reflow is necessary to place the cells correctly in the case of rowspans and colspans.
|
|
// It is very efficient. It does not actually need to pass a reflow down to the cells.
|
|
nsSize availSpace(aReflowState.availableWidth, aReflowState.availableHeight);
|
|
nsHTMLReflowState resizeReflowState(aPresContext,
|
|
(const nsHTMLReflowState&)(*(aReflowState.parentReflowState)),
|
|
(nsIFrame *)this,
|
|
availSpace,
|
|
eReflowReason_Resize);
|
|
RowReflowState rowResizeReflowState(resizeReflowState, tableFrame);
|
|
rv = ResizeReflow(aPresContext, aDesiredSize, rowResizeReflowState, aStatus);
|
|
}
|
|
GetMinRowSpan(tableFrame);
|
|
FixMinCellHeight(tableFrame);
|
|
aStatus = NS_FRAME_COMPLETE;
|
|
break;
|
|
|
|
case eReflowReason_Resize:
|
|
rv = ResizeReflow(aPresContext, aDesiredSize, state, aStatus);
|
|
break;
|
|
|
|
case eReflowReason_Incremental:
|
|
rv = IncrementalReflow(aPresContext, aDesiredSize, state, aStatus);
|
|
break;
|
|
}
|
|
|
|
if (gsDebug==PR_TRUE)
|
|
{
|
|
if (nsnull!=aDesiredSize.maxElementSize)
|
|
printf("%p: Row::RR returning: %s with aDesiredSize=%d,%d, aMES=%d,%d\n",
|
|
this, NS_FRAME_IS_COMPLETE(aStatus)?"Complete":"Not Complete",
|
|
aDesiredSize.width, aDesiredSize.height,
|
|
aDesiredSize.maxElementSize->width, aDesiredSize.maxElementSize->height);
|
|
else
|
|
printf("%p: Row::RR returning: %s with aDesiredSize=%d,%d, aMES=NSNULL\n",
|
|
this, NS_FRAME_IS_COMPLETE(aStatus)?"Complete":"Not Complete",
|
|
aDesiredSize.width, aDesiredSize.height);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
/* we overload this here because rows have children that can span outside of themselves.
|
|
* so the default "get the child rect, see if it contains the event point" action isn't
|
|
* sufficient. We have to ask the row if it has a child that contains the point.
|
|
*/
|
|
PRBool nsTableRowFrame::Contains(const nsPoint& aPoint)
|
|
{
|
|
PRBool result = PR_FALSE;
|
|
// first, check the row rect and see if the point is in their
|
|
if (mRect.Contains(aPoint)) {
|
|
result = PR_TRUE;
|
|
}
|
|
// if that fails, check the cells, they might span outside the row rect
|
|
else {
|
|
nsIFrame* kid;
|
|
FirstChild(nsnull, &kid);
|
|
while (nsnull != kid) {
|
|
nsRect kidRect;
|
|
kid->GetRect(kidRect);
|
|
nsPoint point(aPoint);
|
|
point.MoveBy(-mRect.x, -mRect.y); // offset the point to check by the row container
|
|
if (kidRect.Contains(point)) {
|
|
result = PR_TRUE;
|
|
break;
|
|
}
|
|
kid->GetNextSibling(&kid);
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* 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
|
|
*/
|
|
void nsTableRowFrame::ReflowCellFrame(nsIPresContext& aPresContext,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsTableCellFrame* aCellFrame,
|
|
nscoord aAvailableHeight,
|
|
nsReflowStatus& aStatus)
|
|
{
|
|
// Reflow the cell frame with the specified height. Use the existing width
|
|
nsSize cellSize;
|
|
aCellFrame->GetSize(cellSize);
|
|
|
|
nsSize availSize(cellSize.width, aAvailableHeight);
|
|
nsHTMLReflowState cellReflowState(aPresContext, aReflowState, aCellFrame, availSize,
|
|
eReflowReason_Resize);
|
|
nsHTMLReflowMetrics desiredSize(nsnull);
|
|
|
|
ReflowChild(aCellFrame, aPresContext, desiredSize, cellReflowState, aStatus);
|
|
aCellFrame->SizeTo(cellSize.width, aAvailableHeight);
|
|
aCellFrame->VerticallyAlignChild();
|
|
}
|
|
|
|
/**
|
|
* This function is 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);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTableRowFrame::GetFrameType(nsIAtom** aType) const
|
|
{
|
|
NS_PRECONDITION(nsnull != aType, "null OUT parameter pointer");
|
|
*aType = nsLayoutAtoms::tableRowFrame;
|
|
NS_ADDREF(*aType);
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
/* ----- global methods ----- */
|
|
|
|
nsresult
|
|
NS_NewTableRowFrame(nsIFrame** aNewFrame)
|
|
{
|
|
NS_PRECONDITION(aNewFrame, "null OUT ptr");
|
|
if (nsnull == aNewFrame) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
nsTableRowFrame* it = new nsTableRowFrame;
|
|
if (nsnull == it) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
*aNewFrame = it;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTableRowFrame::GetFrameName(nsString& aResult) const
|
|
{
|
|
return MakeFrameName("TableRow", aResult);
|
|
}
|
|
|
|
|
|
|