зеркало из https://github.com/mozilla/pjs.git
1557 строки
59 KiB
C++
1557 строки
59 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
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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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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/* ----------- nsTableRowpFrame ---------- */
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nsTableRowFrame::nsTableRowFrame()
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: nsHTMLContainerFrame(),
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mTallestCell(0),
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mAllBits(0)
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{
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mBits.mMinRowSpan = 1;
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mBits.mRowIndex = 0;
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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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tableFrame->AppendCell(*aPresContext, (nsTableCellFrame&)*childFrame, GetRowIndex());
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}
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}
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tableFrame->InvalidateColumnWidths();
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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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// gather the new frames (only those which are cells) into an array
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nsTableCellFrame* prevCellFrame = (nsTableCellFrame *)nsTableFrame::GetFrameAtOrBefore(this, aPrevFrame, nsLayoutAtoms::tableCellFrame);
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nsVoidArray cellChildren;
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for (nsIFrame* childFrame = aFrameList; childFrame; childFrame->GetNextSibling(&childFrame)) {
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nsIAtom* frameType;
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childFrame->GetFrameType(&frameType);
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if (nsLayoutAtoms::tableCellFrame == frameType) {
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cellChildren.AppendElement(childFrame);
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}
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NS_IF_RELEASE(frameType);
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}
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// insert the cells into the cell map
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PRInt32 colIndex = -1;
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if (prevCellFrame) {
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prevCellFrame->GetColIndex(colIndex);
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}
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tableFrame->InsertCells(*aPresContext, cellChildren, GetRowIndex(), colIndex);
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// Insert the frames in the frame list
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mFrames.InsertFrames(nsnull, aPrevFrame, aFrameList);
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// Because the number of columns may have changed invalidate the column widths
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tableFrame->InvalidateColumnWidths();
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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::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 (tableFrame) {
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nsIAtom* frameType;
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aOldFrame->GetFrameType(&frameType);
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if (nsLayoutAtoms::tableCellFrame == frameType) {
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nsTableCellFrame* cellFrame = (nsTableCellFrame*)aOldFrame;
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PRInt32 colIndex;
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cellFrame->GetColIndex(colIndex);
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tableFrame->RemoveCell(*aPresContext, cellFrame, GetRowIndex());
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// Remove the frame and destroy it
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mFrames.DestroyFrame(aPresContext, aOldFrame);
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// cells have possibly shifted into different columns.
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tableFrame->InvalidateColumnWidths();
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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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}
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NS_IF_RELEASE(frameType);
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}
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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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// Resize and re-align the cell frames based on our row height
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nscoord cellMaxTopMargin = GetChildMaxTopMargin();
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nscoord cellMaxBottomMargin = GetChildMaxBottomMargin();
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nscoord rowCellHeight = mRect.height - cellMaxTopMargin - cellMaxBottomMargin;
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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(GetRowIndex(), (nsTableCellFrame *)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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// XXX If the cell frame has a view, then we need to resize
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// it as well. We would like to only do that if the cell's size
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// is changing. Why is the 'if' stmt above commented out?
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cellFrame->SizeTo(aPresContext, cellFrameSize.width, 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(aPresContext);
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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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}
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void nsTableRowFrame::ResetMaxChildHeight()
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{
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mTallestCell=0;
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}
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void nsTableRowFrame::SetMaxChildHeight(nscoord aChildHeight)
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{
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if (mTallestCell<aChildHeight)
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mTallestCell = aChildHeight;
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}
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static
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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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}
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}
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}
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#ifdef DEBUG
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// for debug...
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if ((NS_FRAME_PAINT_LAYER_DEBUG == aWhichLayer) && GetShowFrameBorders()) {
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aRenderingContext.SetColor(NS_RGB(0,255,0));
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aRenderingContext.DrawRect(0, 0, mRect.width, mRect.height);
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}
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#endif
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PaintChildren(aPresContext, aRenderingContext, aDirtyRect, aWhichLayer);
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return NS_OK;
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}
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PRIntn
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nsTableRowFrame::GetSkipSides() const
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{
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PRIntn skip = 0;
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if (nsnull != mPrevInFlow) {
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skip |= 1 << NS_SIDE_TOP;
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}
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if (nsnull != mNextInFlow) {
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skip |= 1 << NS_SIDE_BOTTOM;
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}
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return skip;
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}
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/** overloaded method from nsContainerFrame. The difference is that
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* we don't want to clip our children, so a cell can do a rowspan
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*/
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void nsTableRowFrame::PaintChildren(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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nsIFrame* kid = mFrames.FirstChild();
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while (nsnull != kid) {
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nsIView *pView;
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kid->GetView(aPresContext, &pView);
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if (nsnull == pView) {
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nsRect kidRect;
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kid->GetRect(kidRect);
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nsRect damageArea;
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PRBool overlap = damageArea.IntersectRect(aDirtyRect, kidRect);
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if (overlap) {
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PRBool clipState;
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// Translate damage area into kid's coordinate system
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nsRect kidDamageArea(damageArea.x - kidRect.x,
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damageArea.y - kidRect.y,
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damageArea.width, damageArea.height);
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aRenderingContext.PushState();
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aRenderingContext.Translate(kidRect.x, kidRect.y);
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kid->Paint(aPresContext, aRenderingContext, kidDamageArea,
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aWhichLayer);
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#ifdef DEBUG
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if ((NS_FRAME_PAINT_LAYER_DEBUG == aWhichLayer) &&
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GetShowFrameBorders()) {
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aRenderingContext.SetColor(NS_RGB(255,0,0));
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aRenderingContext.DrawRect(0, 0, kidRect.width, kidRect.height);
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}
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#endif
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aRenderingContext.PopState(clipState);
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}
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}
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kid->GetNextSibling(&kid);
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}
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}
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/** returns the height of the tallest child in this row (ignoring any cell with rowspans) */
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nscoord nsTableRowFrame::GetTallestChild() const
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{
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return mTallestCell;
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}
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nscoord nsTableRowFrame::GetChildMaxTopMargin() const
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{
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nsTableFrame *tableFrame;
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nsTableFrame::GetTableFrame((nsIFrame*)this, tableFrame);
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// Only cells in the first row have a top margin
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return (GetRowIndex() == 0) ? tableFrame->GetCellSpacingY() : 0;
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}
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nscoord nsTableRowFrame::GetChildMaxBottomMargin() const
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{
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nsTableFrame *tableFrame;
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nsTableFrame::GetTableFrame((nsIFrame*)this, tableFrame);
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// All cells have the same bottom margin
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return tableFrame->GetCellSpacingY();
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}
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PRInt32 nsTableRowFrame::GetMaxColumns() const
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{
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int sum = 0;
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nsIFrame *cell=mFrames.FirstChild();
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while (nsnull!=cell)
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{
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const nsStyleDisplay *kidDisplay;
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cell->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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sum += ((nsTableCellFrame *)cell)->GetColSpan();
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}
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cell->GetNextSibling(&cell);
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}
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return sum;
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}
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/* GetMinRowSpan is needed for deviant cases where every cell in a row has a rowspan > 1.
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* It sets mMinRowSpan, which is used in FixMinCellHeight and PlaceChild
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*/
|
|
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(GetRowIndex(), ((nsTableCellFrame *)frame));
|
|
if (-1==minRowSpan)
|
|
minRowSpan = rowSpan;
|
|
else if (minRowSpan>rowSpan)
|
|
minRowSpan = rowSpan;
|
|
}
|
|
frame->GetNextSibling(&frame);
|
|
}
|
|
mBits.mMinRowSpan = unsigned(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(GetRowIndex(), ((nsTableCellFrame *)frame));
|
|
if (PRInt32(mBits.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,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
nscoord aX,
|
|
nscoord aY,
|
|
nsSize* aMaxElementSize,
|
|
nsSize* aKidMaxElementSize)
|
|
{
|
|
// Complete the reflow
|
|
FinishReflowChild(aKidFrame, aPresContext, aDesiredSize, aX, aY, 0);
|
|
|
|
// update the running total for the row width
|
|
aReflowState.x += aDesiredSize.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 (aDesiredSize.height > aReflowState.maxCellHeight)
|
|
aReflowState.maxCellHeight = aDesiredSize.height;
|
|
|
|
// Update maxCellVertSpace
|
|
nsMargin margin;
|
|
|
|
if (aReflowState.tableFrame->GetCellMarginData((nsTableCellFrame *)aKidFrame, margin) == NS_OK) {
|
|
nscoord height = aDesiredSize.height + margin.top + margin.bottom;
|
|
|
|
if (height > aReflowState.maxCellVertSpace)
|
|
aReflowState.maxCellVertSpace = height;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
// Calculate the cell's actual size given its pass2 desired width and height.
|
|
// Takes into account the specified height (in the style), and any special logic
|
|
// needed for backwards compatibility.
|
|
// Modifies the desired width and height that are passed in.
|
|
nsresult
|
|
nsTableRowFrame::CalculateCellActualSize(RowReflowState& aReflowState,
|
|
nsIFrame* aCellFrame,
|
|
nscoord& aDesiredWidth,
|
|
nscoord& aDesiredHeight,
|
|
nscoord aAvailWidth)
|
|
{
|
|
nscoord specifiedHeight = 0;
|
|
const nsStylePosition* position;
|
|
|
|
// Get the height specified in the style information
|
|
aCellFrame->GetStyleData(eStyleStruct_Position, (const nsStyleStruct*&)position);
|
|
|
|
switch (position->mHeight.GetUnit()) {
|
|
case eStyleUnit_Coord:
|
|
specifiedHeight = position->mHeight.GetCoordValue();
|
|
break;
|
|
case eStyleUnit_Percent:
|
|
{
|
|
nsTableFrame* table = nsnull;
|
|
nsTableFrame::GetTableFrame(this, table);
|
|
if (table) {
|
|
nscoord basis = table->GetPercentBasisForRows();
|
|
if (basis > 0) {
|
|
float percent = position->mHeight.GetPercentValue();
|
|
specifiedHeight = NSToCoordRound(percent * ((float)basis));
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case eStyleUnit_Inherit:
|
|
// XXX for now, do nothing
|
|
default:
|
|
case eStyleUnit_Auto:
|
|
break;
|
|
}
|
|
|
|
// If the specified height is greater than the desired height, then use the
|
|
// specified height
|
|
if (specifiedHeight > aDesiredHeight)
|
|
aDesiredHeight = specifiedHeight;
|
|
|
|
// begin special Nav4 compatibility code for the width
|
|
if (0 == aDesiredWidth)
|
|
{
|
|
aDesiredWidth = aAvailWidth;
|
|
}
|
|
// end special Nav4 compatibility code
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
// Calculates the available width for the table cell based on the known
|
|
// column widths taking into account column spans and column spacing
|
|
nscoord
|
|
nsTableRowFrame::CalculateCellAvailableWidth(nsTableFrame* aTableFrame,
|
|
nsIFrame* aCellFrame,
|
|
PRInt32 aCellColIndex,
|
|
PRInt32 aNumColSpans,
|
|
nscoord aCellSpacingX)
|
|
{
|
|
nscoord availWidth = 0;
|
|
for (PRInt32 index = 0; index < aNumColSpans; index++) {
|
|
// Add in the width of this column
|
|
availWidth += aTableFrame->GetColumnWidth(aCellColIndex + index);
|
|
|
|
// If the cell spans columns, then for all columns except the first column
|
|
// add in the column spacing
|
|
if ((index != 0) && (aTableFrame->GetNumCellsOriginatingInCol(aCellColIndex + index) > 0)) {
|
|
availWidth += aCellSpacingX;
|
|
}
|
|
}
|
|
|
|
return availWidth;
|
|
}
|
|
|
|
/**
|
|
* 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 localKidMaxElementSize(0,0);
|
|
nsSize* kidMaxElementSize = (aDesiredSize.maxElementSize) ? &localKidMaxElementSize : nsnull;
|
|
|
|
nscoord cellSpacingX = aReflowState.tableFrame->GetCellSpacingX();
|
|
PRInt32 cellColSpan=1; // must be defined here so it's set properly for non-cell kids
|
|
|
|
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));
|
|
|
|
// 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->GetNumCellsOriginatingInCol(colIndex) > 0) {
|
|
aReflowState.x += cellSpacingX;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
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->GetNumCellsOriginatingInCol(colIndex) > 0) {
|
|
aReflowState.x += cellSpacingX;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
aReflowState.x += cellSpacingX;
|
|
|
|
// Calculate the available width for the table cell using the known
|
|
// column widths
|
|
nscoord availWidth;
|
|
if (aDirtyOnly && (frameState & NS_FRAME_FIRST_REFLOW)) {
|
|
// This is the initial reflow for the cell and so we do an unconstrained
|
|
// reflow.
|
|
// Note: don't assume that we have known column widths. If we don't, then
|
|
// CalculateCellAvailableWidth() may assert if called now...
|
|
availWidth = NS_UNCONSTRAINEDSIZE;
|
|
} else {
|
|
availWidth = CalculateCellAvailableWidth(aReflowState.tableFrame,
|
|
kidFrame, cellColIndex,
|
|
cellColSpan, cellSpacingX);
|
|
}
|
|
|
|
// remember the rightmost (ltr) or leftmost (rtl) column this cell spans into
|
|
prevColIndex = (iter.IsLeftToRight()) ? cellColIndex + (cellColSpan - 1) : cellColIndex;
|
|
nsHTMLReflowMetrics desiredSize(kidMaxElementSize);
|
|
|
|
// 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);
|
|
|
|
// 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);
|
|
}
|
|
}
|
|
|
|
// Reflow the child
|
|
nsHTMLReflowState kidReflowState(aPresContext,
|
|
aReflowState.reflowState, kidFrame,
|
|
kidAvailSize,
|
|
reason);
|
|
nsReflowStatus status;
|
|
rv = ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState,
|
|
aReflowState.x, GetChildMaxTopMargin(), 0, status);
|
|
#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)->SetMaximumWidth(desiredSize.width);
|
|
if (kidMaxElementSize) {
|
|
((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;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
nsSize priorSize = ((nsTableCellFrame *)kidFrame)->GetDesiredSize();
|
|
desiredSize.width = priorSize.width;
|
|
desiredSize.height = priorSize.height;
|
|
if (kidMaxElementSize)
|
|
*kidMaxElementSize = ((nsTableCellFrame *)kidFrame)->GetPass1MaxElementSize();
|
|
|
|
// Because we may have moved the frame we need to make sure any views are
|
|
// positioned properly. We have to do this, because any one of our parent
|
|
// frames could have moved and we have no way of knowing...
|
|
nsIView* view;
|
|
kidFrame->GetView(aPresContext, &view);
|
|
if (view) {
|
|
nsContainerFrame::PositionFrameView(aPresContext, kidFrame, view);
|
|
} else {
|
|
nsContainerFrame::PositionChildViews(aPresContext, kidFrame);
|
|
}
|
|
}
|
|
|
|
// Calculate the cell's actual size given its pass2 size. This function
|
|
// takes into account the specified height (in the style), and any special
|
|
// logic needed for backwards compatibility
|
|
CalculateCellActualSize(aReflowState, kidFrame, desiredSize.width,
|
|
desiredSize.height, availWidth);
|
|
|
|
// Place the child
|
|
PlaceChild(aPresContext, aReflowState, kidFrame, desiredSize,
|
|
aReflowState.x, GetChildMaxTopMargin(),
|
|
aDesiredSize.maxElementSize, kidMaxElementSize);
|
|
|
|
}
|
|
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);
|
|
nsReflowStatus status;
|
|
ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState, 0, 0, 0, status);
|
|
kidFrame->DidReflow(aPresContext, NS_FRAME_REFLOW_FINISHED);
|
|
}
|
|
}
|
|
|
|
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); // 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_karnaze
|
|
nscoord overAllocated = aDesiredSize.width - aReflowState.reflowState.availableWidth;
|
|
if (overAllocated > 0) {
|
|
float p2t;
|
|
aPresContext->GetScaledPixelsToTwips(&p2t);
|
|
if (overAllocated > p2t) {
|
|
printf("row over allocated by %d\n twips", overAllocated);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
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 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
|
|
// Get the frame's margins
|
|
nsMargin kidMargin;
|
|
aReflowState.tableFrame->GetCellMarginData((nsTableCellFrame *)kidFrame, kidMargin);
|
|
|
|
// 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);
|
|
|
|
rv = ReflowChild(kidFrame, aPresContext, kidSize, kidReflowState,
|
|
x + kidMargin.left, kidMargin.top, 0, aStatus);
|
|
|
|
// 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)->SetMaximumWidth(kidSize.width);
|
|
((nsTableCellFrame *)kidFrame)->SetPass1MaxElementSize(kidMaxElementSize);
|
|
NS_ASSERTION(NS_FRAME_IS_COMPLETE(aStatus), "unexpected child reflow status");
|
|
|
|
// Place the child
|
|
x += kidMargin.left;
|
|
PlaceChild(aPresContext, aReflowState, kidFrame, kidSize, x, kidMargin.top,
|
|
aDesiredSize.maxElementSize, &kidMaxElementSize);
|
|
x += kidSize.width + kidMargin.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);
|
|
ReflowChild(kidFrame, aPresContext, desiredSize, kidReflowState, 0, 0, 0, aStatus);
|
|
kidFrame->DidReflow(aPresContext, NS_FRAME_REFLOW_FINISHED);
|
|
}
|
|
if (PR_FALSE==aDoSiblings)
|
|
break;
|
|
}
|
|
|
|
SetMaxChildHeight(aReflowState.maxCellHeight); // 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,
|
|
nsSize* aMaxElementSize)
|
|
{
|
|
// Initialize OUT parameters
|
|
if (aMaxElementSize) {
|
|
aMaxElementSize->width = 0;
|
|
aMaxElementSize->height = 0;
|
|
}
|
|
|
|
// Walk the child frames (except aKidFrame) and find the table cell frames
|
|
for (nsIFrame* frame = mFrames.FirstChild(); frame; frame->GetNextSibling(&frame)) {
|
|
if (frame != aKidFrame) {
|
|
// See if the frame is a table cell frame
|
|
const nsStyleDisplay *kidDisplay;
|
|
frame->GetStyleData(eStyleStruct_Display, ((const nsStyleStruct *&)kidDisplay));
|
|
|
|
if (NS_STYLE_DISPLAY_TABLE_CELL == kidDisplay->mDisplay) {
|
|
// Get the child's margins
|
|
nsMargin kidMargin;
|
|
aReflowState.tableFrame->GetCellMarginData((nsTableCellFrame *)frame, kidMargin);
|
|
|
|
// Update maxCellHeight and maxVertCellSpace. When determining this we
|
|
// don't include cells that span rows
|
|
PRInt32 rowSpan = aReflowState.tableFrame->GetEffectiveRowSpan(GetRowIndex(), ((nsTableCellFrame *)frame));
|
|
if (PRInt32(mBits.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.
|
|
// Note: we don't care about the width so don't compute the column
|
|
// width and just pass in the desired width for the available width
|
|
CalculateCellActualSize(aReflowState, frame, desiredSize.width, desiredSize.height,
|
|
desiredSize.width);
|
|
|
|
// Update maxCellHeight
|
|
if (desiredSize.height > aReflowState.maxCellHeight) {
|
|
aReflowState.maxCellHeight = desiredSize.height;
|
|
}
|
|
|
|
// Update maxCellVertHeight
|
|
nscoord vertHeight = desiredSize.height + kidMargin.top + kidMargin.bottom;
|
|
if (vertHeight > aReflowState.maxCellVertSpace) {
|
|
aReflowState.maxCellVertSpace = vertHeight;
|
|
}
|
|
}
|
|
|
|
// Recover the max element size if requested
|
|
if (aMaxElementSize) {
|
|
nsSize kidMaxElementSize = ((nsTableCellFrame *)frame)->GetPass1MaxElementSize();
|
|
|
|
aMaxElementSize->width += kidMaxElementSize.width;
|
|
if (1 == rowSpan) {
|
|
aMaxElementSize->height = PR_MAX(aMaxElementSize->height, kidMaxElementSize.height);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// 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)
|
|
{
|
|
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));
|
|
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;
|
|
break;
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
NS_METHOD nsTableRowFrame::IR_StyleChanged(nsIPresContext* aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
RowReflowState& aReflowState,
|
|
nsReflowStatus& aStatus)
|
|
{
|
|
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
|
|
RecoverState(aPresContext, aReflowState, aNextFrame, aDesiredSize.maxElementSize);
|
|
|
|
// At this point, we know the column widths. Compute the cell available width
|
|
PRInt32 cellColIndex;
|
|
((nsTableCellFrame *)aNextFrame)->GetColIndex(cellColIndex);
|
|
PRInt32 cellColSpan = aReflowState.tableFrame->GetEffectiveColSpan(cellColIndex,
|
|
((nsTableCellFrame *)aNextFrame));
|
|
nscoord cellSpacingX = aReflowState.tableFrame->GetCellSpacingX();
|
|
|
|
nscoord cellAvailWidth = CalculateCellAvailableWidth(aReflowState.tableFrame, aNextFrame,
|
|
cellColIndex, cellColSpan, cellSpacingX);
|
|
|
|
// 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(cellAvailWidth, NS_UNCONSTRAINEDSIZE);
|
|
|
|
// Pass along the reflow command
|
|
nsSize kidMaxElementSize;
|
|
nsHTMLReflowMetrics desiredSize(&kidMaxElementSize, NS_REFLOW_CALC_MAX_WIDTH);
|
|
nsHTMLReflowState kidReflowState(aPresContext,
|
|
aReflowState.reflowState,
|
|
aNextFrame, kidAvailSize);
|
|
|
|
// Remember the current desired size, we'll need it later
|
|
nsSize oldMinSize = ((nsTableCellFrame*)aNextFrame)->GetPass1MaxElementSize();
|
|
nscoord oldMaximumWidth = ((nsTableCellFrame*)aNextFrame)->GetMaximumWidth();
|
|
|
|
// Reflow the cell passing it 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,
|
|
aReflowState.x, GetChildMaxTopMargin(), 0, aStatus);
|
|
|
|
//XXX: this is a hack, shouldn't it be the case that a min size is
|
|
// never larger than a desired size?
|
|
#if 0
|
|
if (kidMaxElementSize.width>desiredSize.width)
|
|
desiredSize.width = kidMaxElementSize.width;
|
|
if (kidMaxElementSize.height>desiredSize.height)
|
|
desiredSize.height = kidMaxElementSize.height;
|
|
#endif
|
|
|
|
// Update the cell layout data.
|
|
((nsTableCellFrame *)aNextFrame)->SetPass1MaxElementSize(kidMaxElementSize);
|
|
// XXX TROY Not ready to be turned on yet...
|
|
#if 0
|
|
((nsTableCellFrame *)aNextFrame)->SetMaximumWidth(desiredSize.mMaximumWidth);
|
|
#endif
|
|
|
|
#if 1
|
|
// Now see if we need to do the regular pass 1 reflow and gather the preferred
|
|
// width. If the new minimum width is different from the old minimum width,
|
|
// then we should consider the max element size
|
|
if (aReflowState.tableFrame->ColumnsCanBeInvalidatedBy(*(nsTableCellFrame*)aNextFrame,
|
|
oldMinSize.width != kidMaxElementSize.width)) {
|
|
// For fixed-layout tables we don't need to know the preferred width
|
|
if (aReflowState.tableFrame->RequiresPass1Layout()) {
|
|
#ifdef DEBUG_troy
|
|
// Changes to the cell frame could require the columns to be rebalanced.
|
|
// XXX We don't really need to compute the max element size again, we just
|
|
// computed it above. However, for the time being do compute it again and
|
|
// make sure it's consistent...
|
|
nscoord prevMaxElementWidth = kidMaxElementSize.width;
|
|
#endif
|
|
|
|
// Do the unconstrained reflow and get the pass1 information
|
|
// XXX Why the reflow reason of eReflowReason_Initial?
|
|
kidReflowState.reason = eReflowReason_Initial;
|
|
kidReflowState.reflowCommand = nsnull;
|
|
kidReflowState.availableWidth = NS_UNCONSTRAINEDSIZE;
|
|
rv = ReflowChild(aNextFrame, aPresContext, desiredSize, kidReflowState,
|
|
aReflowState.x, GetChildMaxTopMargin(), 0, aStatus);
|
|
|
|
//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;
|
|
|
|
#ifdef DEBUG_troy
|
|
// XXX See above
|
|
NS_ASSERTION(prevMaxElementWidth == kidMaxElementSize.width,
|
|
"different max element width!");
|
|
#else
|
|
((nsTableCellFrame *)aNextFrame)->SetPass1MaxElementSize(kidMaxElementSize);
|
|
#endif
|
|
|
|
// Update the cell layout data.
|
|
((nsTableCellFrame *)aNextFrame)->SetMaximumWidth(desiredSize.width);
|
|
}
|
|
|
|
// Now that we know the minimum and preferred widths see if the column
|
|
// widths need to be rebalanced
|
|
if (aReflowState.tableFrame->ColumnsAreValidFor(*(nsTableCellFrame*)aNextFrame,
|
|
oldMinSize.width,
|
|
oldMaximumWidth)) {
|
|
// The column widths don't need to be rebalanced. Now reflow the cell
|
|
// again this time constraining the width back to the column width again
|
|
kidReflowState.reason = eReflowReason_Resize;
|
|
kidReflowState.availableWidth = cellAvailWidth;
|
|
rv = ReflowChild(aNextFrame, aPresContext, desiredSize, kidReflowState,
|
|
aReflowState.x, GetChildMaxTopMargin(), 0, aStatus);
|
|
|
|
} else {
|
|
// The column widths need to be rebalanced, so don't waste time reflowing
|
|
// the cell again. Tell the table to rebalance the column widths
|
|
aReflowState.tableFrame->InvalidateColumnWidths();
|
|
}
|
|
}
|
|
#else
|
|
// Now that we know the minimum and preferred widths see if the column
|
|
// widths need to be rebalanced
|
|
if (!aReflowState.tableFrame->ColumnsAreValidFor(*(nsTableCellFrame*)aNextFrame,
|
|
oldMinSize.width,
|
|
oldMaximumWidth)) {
|
|
// The column widths need to be rebalanced. Tell the table to rebalance
|
|
// the column widths
|
|
aReflowState.tableFrame->InvalidateColumnWidths();
|
|
}
|
|
#endif
|
|
|
|
// Calculate the cell's actual size given its pass2 size. This function
|
|
// takes into account the specified height (in the style), and any special
|
|
// logic needed for backwards compatibility
|
|
CalculateCellActualSize(aReflowState, aNextFrame, desiredSize.width, desiredSize.height,
|
|
cellAvailWidth);
|
|
|
|
// Now place the child
|
|
PlaceChild(aPresContext, aReflowState, aNextFrame, desiredSize, aReflowState.x,
|
|
GetChildMaxTopMargin(), aDesiredSize.maxElementSize, &kidMaxElementSize);
|
|
|
|
SetMaxChildHeight(aReflowState.maxCellHeight);
|
|
|
|
// 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;
|
|
}
|
|
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)
|
|
{
|
|
if (nsDebugTable::gRflRow) nsTableFrame::DebugReflow("TR::Rfl en", this, &aReflowState, nsnull);
|
|
nsresult rv = NS_OK;
|
|
|
|
// 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:
|
|
case eReflowReason_StyleChange:
|
|
rv = ResizeReflow(aPresContext, aDesiredSize, state, aStatus);
|
|
break;
|
|
|
|
case eReflowReason_Incremental:
|
|
rv = IncrementalReflow(aPresContext, aDesiredSize, state, aStatus);
|
|
break;
|
|
}
|
|
|
|
// If we computed our max element element size, then cache it so we can return
|
|
// it later when asked
|
|
if (aDesiredSize.maxElementSize) {
|
|
mMaxElementSize = *aDesiredSize.maxElementSize;
|
|
}
|
|
|
|
if (nsDebugTable::gRflRow) nsTableFrame::DebugReflow("TR::Rfl ex", this, nsnull, &aDesiredSize, aStatus);
|
|
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,
|
|
0, 0, NS_FRAME_NO_MOVE_FRAME, aStatus);
|
|
aCellFrame->SizeTo(aPresContext, cellSize.width, aAvailableHeight);
|
|
aCellFrame->VerticallyAlignChild(aPresContext);
|
|
aCellFrame->DidReflow(aPresContext, NS_FRAME_REFLOW_FINISHED);
|
|
}
|
|
|
|
/**
|
|
* 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(nsIPresShell* aPresShell, nsIFrame** aNewFrame)
|
|
{
|
|
NS_PRECONDITION(aNewFrame, "null OUT ptr");
|
|
if (nsnull == aNewFrame) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
nsTableRowFrame* it = new (aPresShell) nsTableRowFrame;
|
|
if (nsnull == it) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
*aNewFrame = it;
|
|
return NS_OK;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
NS_IMETHODIMP
|
|
nsTableRowFrame::GetFrameName(nsString& aResult) const
|
|
{
|
|
return MakeFrameName("TableRow", aResult);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTableRowFrame::SizeOf(nsISizeOfHandler* aHandler, PRUint32* aResult) const
|
|
{
|
|
if (!aResult) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
PRUint32 sum = sizeof(*this);
|
|
*aResult = sum;
|
|
return NS_OK;
|
|
}
|
|
#endif
|