зеркало из https://github.com/mozilla/pjs.git
637 строки
21 KiB
C++
637 строки
21 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* 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
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsTableColGroupFrame.h"
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#include "nsTableColFrame.h"
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#include "nsTableFrame.h"
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#include "nsIDOMHTMLTableColElement.h"
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#include "nsReflowPath.h"
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#include "nsStyleContext.h"
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#include "nsStyleConsts.h"
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#include "nsPresContext.h"
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#include "nsHTMLParts.h"
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#include "nsHTMLAtoms.h"
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#include "nsCOMPtr.h"
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#include "nsCSSRendering.h"
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#include "nsIPresShell.h"
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#include "nsLayoutAtoms.h"
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#define COL_GROUP_TYPE_BITS 0xC0000000 // uses bits 31-32 from mState
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#define COL_GROUP_TYPE_OFFSET 30
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nsTableColGroupType
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nsTableColGroupFrame::GetColType() const
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{
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return (nsTableColGroupType)((mState & COL_GROUP_TYPE_BITS) >> COL_GROUP_TYPE_OFFSET);
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}
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void nsTableColGroupFrame::SetColType(nsTableColGroupType aType)
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{
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PRUint32 type = aType - eColGroupContent;
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mState |= (type << COL_GROUP_TYPE_OFFSET);
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}
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void nsTableColGroupFrame::ResetColIndices(nsIFrame* aFirstColGroup,
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PRInt32 aFirstColIndex,
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nsIFrame* aStartColFrame)
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{
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nsTableColGroupFrame* colGroupFrame = (nsTableColGroupFrame*)aFirstColGroup;
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PRInt32 colIndex = aFirstColIndex;
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while (colGroupFrame) {
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if (nsLayoutAtoms::tableColGroupFrame == colGroupFrame->GetType()) {
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// reset the starting col index for the first cg only if
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// aFirstColIndex is smaller than the existing starting col index
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if ((colIndex != aFirstColIndex) ||
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(colIndex < colGroupFrame->GetStartColumnIndex())) {
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colGroupFrame->SetStartColumnIndex(colIndex);
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}
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nsIFrame* colFrame = aStartColFrame;
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if (!colFrame || (colIndex != aFirstColIndex)) {
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colFrame = colGroupFrame->GetFirstChild(nsnull);
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}
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while (colFrame) {
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if (nsLayoutAtoms::tableColFrame == colFrame->GetType()) {
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((nsTableColFrame*)colFrame)->SetColIndex(colIndex);
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colIndex++;
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}
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colFrame = colFrame->GetNextSibling();
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}
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}
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colGroupFrame = NS_STATIC_CAST(nsTableColGroupFrame*,
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colGroupFrame->GetNextSibling());
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}
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}
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nsresult
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nsTableColGroupFrame::AddColsToTable(PRInt32 aFirstColIndex,
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PRBool aResetSubsequentColIndices,
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nsIFrame* aFirstFrame,
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nsIFrame* aLastFrame)
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{
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nsresult rv = NS_OK;
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nsTableFrame* tableFrame = nsnull;
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rv = nsTableFrame::GetTableFrame(this, tableFrame);
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if (!tableFrame || !aFirstFrame) return NS_ERROR_NULL_POINTER;
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// set the col indices of the col frames and and add col info to the table
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PRInt32 colIndex = aFirstColIndex;
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nsIFrame* kidFrame = aFirstFrame;
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PRBool foundLastFrame = PR_FALSE;
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while (kidFrame) {
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if (nsLayoutAtoms::tableColFrame == kidFrame->GetType()) {
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((nsTableColFrame*)kidFrame)->SetColIndex(colIndex);
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if (!foundLastFrame) {
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mColCount++;
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tableFrame->InsertCol((nsTableColFrame &)*kidFrame, colIndex);
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}
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colIndex++;
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}
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if (kidFrame == aLastFrame) {
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foundLastFrame = PR_TRUE;
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}
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kidFrame = kidFrame->GetNextSibling();
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}
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// We have already set the colindex for all the colframes in this
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// colgroup that come after the first inserted colframe, but there could
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// be other colgroups following this one and their colframes need
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// correct colindices too.
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if (aResetSubsequentColIndices && GetNextSibling()) {
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ResetColIndices(GetNextSibling(), colIndex);
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}
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return rv;
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}
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PRBool
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nsTableColGroupFrame::GetLastRealColGroup(nsTableFrame* aTableFrame,
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nsIFrame** aLastColGroup)
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{
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*aLastColGroup = nsnull;
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nsFrameList colGroups = aTableFrame->GetColGroups();
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nsIFrame* nextToLastColGroup = nsnull;
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nsIFrame* lastColGroup = colGroups.FirstChild();
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while(lastColGroup) {
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nsIFrame* next = lastColGroup->GetNextSibling();
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if (next) {
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nextToLastColGroup = lastColGroup;
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lastColGroup = next;
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}
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else {
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break;
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}
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}
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if (!lastColGroup) return PR_TRUE; // there are no col group frames
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nsTableColGroupType lastColGroupType =
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((nsTableColGroupFrame *)lastColGroup)->GetColType();
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if (eColGroupAnonymousCell == lastColGroupType) {
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*aLastColGroup = nextToLastColGroup;
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return PR_FALSE;
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}
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else {
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*aLastColGroup = lastColGroup;
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return PR_TRUE;
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}
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}
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// don't set mColCount here, it is done in AddColsToTable
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NS_IMETHODIMP
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nsTableColGroupFrame::SetInitialChildList(nsPresContext* aPresContext,
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nsIAtom* aListName,
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nsIFrame* aChildList)
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{
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nsTableFrame* tableFrame;
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nsTableFrame::GetTableFrame(this, tableFrame);
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if (!tableFrame) return NS_ERROR_NULL_POINTER;
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if (!aChildList) {
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nsIFrame* firstChild;
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tableFrame->CreateAnonymousColFrames(this, GetSpan(), eColAnonymousColGroup,
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PR_FALSE, nsnull, &firstChild);
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if (firstChild) {
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SetInitialChildList(aPresContext, aListName, firstChild);
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}
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return NS_OK;
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}
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mFrames.AppendFrames(this, aChildList);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsTableColGroupFrame::AppendFrames(nsIAtom* aListName,
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nsIFrame* aFrameList)
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{
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mFrames.AppendFrames(this, aFrameList);
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InsertColsReflow(mColCount, aFrameList);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsTableColGroupFrame::InsertFrames(nsIAtom* aListName,
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nsIFrame* aPrevFrameIn,
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nsIFrame* aFrameList)
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{
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nsFrameList frames(aFrameList); // convience for getting last frame
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nsIFrame* lastFrame = frames.LastChild();
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mFrames.InsertFrames(this, aPrevFrameIn, aFrameList);
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nsIFrame* prevFrame = nsTableFrame::GetFrameAtOrBefore(this, aPrevFrameIn,
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nsLayoutAtoms::tableColFrame);
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PRInt32 colIndex = (prevFrame) ? ((nsTableColFrame*)prevFrame)->GetColIndex() + 1 : 0;
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InsertColsReflow(colIndex, aFrameList, lastFrame);
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return NS_OK;
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}
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void
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nsTableColGroupFrame::InsertColsReflow(PRInt32 aColIndex,
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nsIFrame* aFirstFrame,
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nsIFrame* aLastFrame)
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{
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AddColsToTable(aColIndex, PR_TRUE, aFirstFrame, aLastFrame);
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nsTableFrame* tableFrame;
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nsTableFrame::GetTableFrame(this, tableFrame);
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if (!tableFrame) return;
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// XXX this could be optimized with much effort
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tableFrame->SetNeedStrategyInit(PR_TRUE);
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// Generate a reflow command so we reflow the table
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nsTableFrame::AppendDirtyReflowCommand(tableFrame);
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}
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void
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nsTableColGroupFrame::RemoveChild(nsTableColFrame& aChild,
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PRBool aResetSubsequentColIndices)
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{
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PRInt32 colIndex = 0;
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nsIFrame* nextChild = nsnull;
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if (aResetSubsequentColIndices) {
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colIndex = aChild.GetColIndex();
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nextChild = aChild.GetNextSibling();
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}
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if (mFrames.DestroyFrame(GetPresContext(), (nsIFrame*)&aChild)) {
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mColCount--;
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if (aResetSubsequentColIndices) {
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if (nextChild) { // reset inside this and all following colgroups
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ResetColIndices(this, colIndex, nextChild);
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}
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else {
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nsIFrame* nextGroup = GetNextSibling();
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if (nextGroup) // reset next and all following colgroups
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ResetColIndices(nextGroup, colIndex);
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}
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}
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}
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nsTableFrame* tableFrame;
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nsTableFrame::GetTableFrame(this, tableFrame);
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if (!tableFrame) return;
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// XXX this could be optimized with much effort
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tableFrame->SetNeedStrategyInit(PR_TRUE);
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// Generate a reflow command so we reflow the table
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nsTableFrame::AppendDirtyReflowCommand(tableFrame);
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}
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NS_IMETHODIMP
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nsTableColGroupFrame::RemoveFrame(nsIAtom* aListName,
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nsIFrame* aOldFrame)
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{
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if (!aOldFrame) return NS_OK;
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if (nsLayoutAtoms::tableColFrame == aOldFrame->GetType()) {
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nsTableColFrame* colFrame = (nsTableColFrame*)aOldFrame;
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PRInt32 colIndex = colFrame->GetColIndex();
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RemoveChild(*colFrame, PR_TRUE);
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nsTableFrame* tableFrame;
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nsTableFrame::GetTableFrame(this, tableFrame);
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if (!tableFrame) return NS_ERROR_NULL_POINTER;
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tableFrame->RemoveCol(this, colIndex, PR_TRUE, PR_TRUE);
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// XXX This could probably be optimized with much effort
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tableFrame->SetNeedStrategyInit(PR_TRUE);
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// Generate a reflow command so we reflow the table
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nsTableFrame::AppendDirtyReflowCommand(tableFrame);
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}
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else {
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mFrames.DestroyFrame(GetPresContext(), aOldFrame);
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}
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return NS_OK;
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}
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NS_METHOD
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nsTableColGroupFrame::Paint(nsPresContext* aPresContext,
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nsIRenderingContext& aRenderingContext,
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const nsRect& aDirtyRect,
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nsFramePaintLayer aWhichLayer,
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PRUint32 aFlags)
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{
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PRBool isVisible;
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if (NS_SUCCEEDED(IsVisibleForPainting(aPresContext, aRenderingContext, PR_FALSE, &isVisible)) && !isVisible) {
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return NS_OK;
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}
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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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nsTableColGroupFrame::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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NS_IMETHODIMP
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nsTableColGroupFrame::GetFrameForPoint(const nsPoint& aPoint,
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nsFramePaintLayer aWhichLayer,
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nsIFrame** aFrame)
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{
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// this should act like a block, so we need to override
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return GetFrameForPointUsing(aPoint, nsnull, aWhichLayer, PR_FALSE, aFrame);
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}
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NS_METHOD nsTableColGroupFrame::Reflow(nsPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus)
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{
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DO_GLOBAL_REFLOW_COUNT("nsTableColGroupFrame", aReflowState.reason);
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DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
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NS_ASSERTION(nsnull!=mContent, "bad state -- null content for frame");
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nsresult rv=NS_OK;
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const nsStyleVisibility* groupVis = GetStyleVisibility();
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PRBool collapseGroup = (NS_STYLE_VISIBILITY_COLLAPSE == groupVis->mVisible);
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if (collapseGroup) {
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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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tableFrame->SetNeedToCollapseColumns(PR_TRUE);
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}
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}
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// for every content child that (is a column thingy and does not already have a frame)
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// create a frame and adjust it's style
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nsIFrame* kidFrame = nsnull;
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if (eReflowReason_Incremental == aReflowState.reason) {
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rv = IncrementalReflow(aDesiredSize, aReflowState, aStatus);
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}
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for (kidFrame = mFrames.FirstChild(); kidFrame;
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kidFrame = kidFrame->GetNextSibling()) {
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// Give the child frame a chance to reflow, even though we know it'll have 0 size
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nsHTMLReflowMetrics kidSize(nsnull);
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// XXX Use a valid reason...
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nsHTMLReflowState kidReflowState(aPresContext, aReflowState, kidFrame,
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nsSize(0,0), eReflowReason_Initial);
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nsReflowStatus status;
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ReflowChild(kidFrame, aPresContext, kidSize, kidReflowState, 0, 0, 0, status);
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FinishReflowChild(kidFrame, aPresContext, nsnull, kidSize, 0, 0, 0);
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}
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aDesiredSize.width=0;
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aDesiredSize.height=0;
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aDesiredSize.ascent=aDesiredSize.height;
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aDesiredSize.descent=0;
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if (aDesiredSize.mComputeMEW)
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{
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aDesiredSize.mMaxElementWidth=0;
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}
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aStatus = NS_FRAME_COMPLETE;
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NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
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return rv;
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}
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NS_METHOD nsTableColGroupFrame::IncrementalReflow(nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus)
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{
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// the col group is a target if its path has a reflow command
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nsHTMLReflowCommand* command = aReflowState.path->mReflowCommand;
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if (command)
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IR_TargetIsMe(aDesiredSize, aReflowState, aStatus);
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// see if the chidren are targets as well
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nsReflowPath::iterator iter = aReflowState.path->FirstChild();
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nsReflowPath::iterator end = aReflowState.path->EndChildren();
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for (; iter != end; ++iter)
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IR_TargetIsChild(aDesiredSize, aReflowState, aStatus, *iter);
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return NS_OK;
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}
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NS_METHOD nsTableColGroupFrame::IR_TargetIsMe(nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus)
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{
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nsresult rv = NS_OK;
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aStatus = NS_FRAME_COMPLETE;
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switch (aReflowState.path->mReflowCommand->Type())
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{
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case eReflowType_StyleChanged :
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rv = IR_StyleChanged(aDesiredSize, aReflowState, aStatus);
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break;
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case eReflowType_ContentChanged :
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NS_ASSERTION(PR_FALSE, "illegal reflow type: ContentChanged");
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rv = NS_ERROR_ILLEGAL_VALUE;
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break;
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default:
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NS_NOTYETIMPLEMENTED("unexpected reflow command type");
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rv = NS_ERROR_NOT_IMPLEMENTED;
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break;
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}
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return rv;
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}
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NS_METHOD nsTableColGroupFrame::IR_StyleChanged(nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus)
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{
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nsresult rv = NS_OK;
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// we presume that all the easy optimizations were done in the nsHTMLStyleSheet before we were called here
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// XXX: we can optimize this when we know which style attribute changed
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nsTableFrame* tableFrame = nsnull;
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rv = nsTableFrame::GetTableFrame(this, tableFrame);
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if (tableFrame) {
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tableFrame->SetNeedStrategyInit(PR_TRUE);
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}
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return rv;
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}
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NS_METHOD nsTableColGroupFrame::IR_TargetIsChild(nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus,
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nsIFrame * aNextFrame)
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{
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nsresult rv;
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// Pass along the reflow command
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nsHTMLReflowMetrics desiredSize(nsnull);
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nsPresContext* presContext = GetPresContext();
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nsHTMLReflowState kidReflowState(presContext, aReflowState, aNextFrame,
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nsSize(aReflowState.availableWidth,
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aReflowState.availableHeight));
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rv = ReflowChild(aNextFrame, presContext, desiredSize, kidReflowState, 0, 0, 0, aStatus);
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aNextFrame->DidReflow(presContext, nsnull, NS_FRAME_REFLOW_FINISHED);
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if (NS_FAILED(rv))
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return rv;
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nsTableFrame *tableFrame=nsnull;
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rv = nsTableFrame::GetTableFrame(this, tableFrame);
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if (tableFrame) {
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// compare the new col count to the old col count.
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// If they are the same, we just need to rebalance column widths
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// If they differ, we need to fix up other column groups and the column cache
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// XXX for now assume the worse
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tableFrame->SetNeedStrategyInit(PR_TRUE);
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}
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return rv;
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}
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nsTableColFrame * nsTableColGroupFrame::GetFirstColumn()
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{
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return GetNextColumn(nsnull);
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}
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nsTableColFrame * nsTableColGroupFrame::GetNextColumn(nsIFrame *aChildFrame)
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{
|
|
nsTableColFrame *result = nsnull;
|
|
nsIFrame *childFrame = aChildFrame;
|
|
if (nsnull==childFrame)
|
|
childFrame = mFrames.FirstChild();
|
|
while (nsnull!=childFrame)
|
|
{
|
|
if (NS_STYLE_DISPLAY_TABLE_COLUMN ==
|
|
childFrame->GetStyleDisplay()->mDisplay)
|
|
{
|
|
result = (nsTableColFrame *)childFrame;
|
|
break;
|
|
}
|
|
childFrame = childFrame->GetNextSibling();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
PRInt32 nsTableColGroupFrame::GetSpan()
|
|
{
|
|
PRInt32 span = 1;
|
|
nsIContent* iContent = GetContent();
|
|
if (!iContent) return NS_OK;
|
|
|
|
// col group element derives from col element
|
|
nsIDOMHTMLTableColElement* cgContent = nsnull;
|
|
nsresult rv = iContent->QueryInterface(NS_GET_IID(nsIDOMHTMLTableColElement),
|
|
(void **)&cgContent);
|
|
if (cgContent && NS_SUCCEEDED(rv)) {
|
|
cgContent->GetSpan(&span);
|
|
// XXX why does this work!!
|
|
if (span == -1) {
|
|
span = 1;
|
|
}
|
|
NS_RELEASE(cgContent);
|
|
}
|
|
return span;
|
|
}
|
|
|
|
void nsTableColGroupFrame::SetContinuousBCBorderWidth(PRUint8 aForSide,
|
|
BCPixelSize aPixelValue)
|
|
{
|
|
switch (aForSide) {
|
|
case NS_SIDE_TOP:
|
|
mTopContBorderWidth = aPixelValue;
|
|
return;
|
|
case NS_SIDE_BOTTOM:
|
|
mBottomContBorderWidth = aPixelValue;
|
|
return;
|
|
default:
|
|
NS_ERROR("invalid side arg");
|
|
}
|
|
}
|
|
|
|
void nsTableColGroupFrame::GetContinuousBCBorderWidth(float aPixelsToTwips,
|
|
nsMargin& aBorder)
|
|
{
|
|
nsTableFrame* table;
|
|
nsTableFrame::GetTableFrame(this, table);
|
|
nsTableColFrame* col = table->GetColFrame(mStartColIndex + mColCount - 1);
|
|
col->GetContinuousBCBorderWidth(aPixelsToTwips, aBorder);
|
|
aBorder.top = BC_BORDER_BOTTOM_HALF_COORD(aPixelsToTwips,
|
|
mTopContBorderWidth);
|
|
aBorder.bottom = BC_BORDER_TOP_HALF_COORD(aPixelsToTwips,
|
|
mBottomContBorderWidth);
|
|
return;
|
|
}
|
|
|
|
/* ----- global methods ----- */
|
|
|
|
nsresult
|
|
NS_NewTableColGroupFrame(nsIPresShell* aPresShell, nsIFrame** aNewFrame)
|
|
{
|
|
NS_PRECONDITION(aNewFrame, "null OUT ptr");
|
|
if (nsnull == aNewFrame) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
nsTableColGroupFrame* it = new (aPresShell) nsTableColGroupFrame;
|
|
if (nsnull == it) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
*aNewFrame = it;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsTableColGroupFrame::Init(nsPresContext* aPresContext,
|
|
nsIContent* aContent,
|
|
nsIFrame* aParent,
|
|
nsStyleContext* aContext,
|
|
nsIFrame* aPrevInFlow)
|
|
{
|
|
nsresult rv;
|
|
|
|
// Let the base class do its processing
|
|
rv = nsHTMLContainerFrame::Init(aPresContext, aContent, aParent, aContext,
|
|
aPrevInFlow);
|
|
|
|
// record that children that are ignorable whitespace should be excluded
|
|
mState |= NS_FRAME_EXCLUDE_IGNORABLE_WHITESPACE;
|
|
|
|
return rv;
|
|
}
|
|
|
|
nsIAtom*
|
|
nsTableColGroupFrame::GetType() const
|
|
{
|
|
return nsLayoutAtoms::tableColGroupFrame;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
NS_IMETHODIMP
|
|
nsTableColGroupFrame::GetFrameName(nsAString& aResult) const
|
|
{
|
|
return MakeFrameName(NS_LITERAL_STRING("TableColGroup"), aResult);
|
|
}
|
|
|
|
void nsTableColGroupFrame::Dump(PRInt32 aIndent)
|
|
{
|
|
char* indent = new char[aIndent + 1];
|
|
if (!indent) return;
|
|
for (PRInt32 i = 0; i < aIndent + 1; i++) {
|
|
indent[i] = ' ';
|
|
}
|
|
indent[aIndent] = 0;
|
|
|
|
printf("%s**START COLGROUP DUMP**\n%s startcolIndex=%d colcount=%d span=%d coltype=",
|
|
indent, indent, GetStartColumnIndex(), GetColCount(), GetSpan());
|
|
nsTableColGroupType colType = GetColType();
|
|
switch (colType) {
|
|
case eColGroupContent:
|
|
printf(" content ");
|
|
break;
|
|
case eColGroupAnonymousCol:
|
|
printf(" anonymous-column ");
|
|
break;
|
|
case eColGroupAnonymousCell:
|
|
printf(" anonymous-cell ");
|
|
break;
|
|
}
|
|
printf("\n%s**END COLGROUP DUMP** ", indent);
|
|
delete [] indent;
|
|
}
|
|
#endif
|