forked from mirrors/gecko-dev
700 lines
25 KiB
C++
700 lines
25 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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// YY need to pass isMultiple before create called
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//#include "nsFormControlFrame.h"
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#include "nsHTMLContainerFrame.h"
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#include "nsLegendFrame.h"
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#include "nsIDOMNode.h"
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#include "nsIDOMHTMLFieldSetElement.h"
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#include "nsIDOMHTMLLegendElement.h"
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#include "nsCSSRendering.h"
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//#include "nsIDOMHTMLCollection.h"
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#include "nsIContent.h"
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#include "nsIFrame.h"
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#include "nsISupports.h"
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#include "nsIAtom.h"
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#include "nsPresContext.h"
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#include "nsFrameManager.h"
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#include "nsHTMLParts.h"
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#include "nsHTMLAtoms.h"
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#include "nsLayoutAtoms.h"
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#include "nsStyleConsts.h"
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#include "nsFont.h"
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#include "nsCOMPtr.h"
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#ifdef ACCESSIBILITY
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#include "nsIAccessibilityService.h"
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#endif
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#include "nsIServiceManager.h"
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#include "nsDisplayList.h"
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class nsLegendFrame;
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class nsFieldSetFrame : public nsHTMLContainerFrame {
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public:
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nsFieldSetFrame(nsStyleContext* aContext);
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NS_IMETHOD SetInitialChildList(nsIAtom* aListName,
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nsIFrame* aChildList);
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NS_IMETHOD 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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NS_IMETHOD BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists);
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void PaintBorderBackground(nsIRenderingContext& aRenderingContext,
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nsPoint aPt, const nsRect& aDirtyRect);
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NS_IMETHOD AppendFrames(nsIAtom* aListName,
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nsIFrame* aFrameList);
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NS_IMETHOD InsertFrames(nsIAtom* aListName,
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nsIFrame* aPrevFrame,
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nsIFrame* aFrameList);
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NS_IMETHOD RemoveFrame(nsIAtom* aListName,
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nsIFrame* aOldFrame);
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virtual nsIAtom* GetType() const;
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virtual PRBool IsContainingBlock() const;
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#ifdef ACCESSIBILITY
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NS_IMETHOD GetAccessible(nsIAccessible** aAccessible);
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#endif
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#ifdef DEBUG
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NS_IMETHOD GetFrameName(nsAString& aResult) const {
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return MakeFrameName(NS_LITERAL_STRING("FieldSet"), aResult);
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}
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#endif
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protected:
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virtual PRIntn GetSkipSides() const;
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nsIFrame* MaybeSetLegend(nsIFrame* aFrameList, nsIAtom* aListName);
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void ReParentFrameList(nsIFrame* aFrameList);
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nsIFrame* mLegendFrame;
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nsIFrame* mContentFrame;
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nsRect mLegendRect;
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nscoord mLegendSpace;
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};
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nsIFrame*
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NS_NewFieldSetFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
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{
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return new (aPresShell) nsFieldSetFrame(aContext);
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}
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nsFieldSetFrame::nsFieldSetFrame(nsStyleContext* aContext)
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: nsHTMLContainerFrame(aContext)
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{
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mContentFrame = nsnull;
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mLegendFrame = nsnull;
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mLegendSpace = 0;
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}
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nsIAtom*
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nsFieldSetFrame::GetType() const
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{
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return nsLayoutAtoms::fieldSetFrame;
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}
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PRBool
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nsFieldSetFrame::IsContainingBlock() const
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{
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return PR_TRUE;
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}
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NS_IMETHODIMP
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nsFieldSetFrame::SetInitialChildList(nsIAtom* aListName,
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nsIFrame* aChildList)
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{
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// Get the content and legend frames.
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if (aChildList->GetNextSibling()) {
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mContentFrame = aChildList->GetNextSibling();
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mLegendFrame = aChildList;
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} else {
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mContentFrame = aChildList;
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mLegendFrame = nsnull;
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}
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// Queue up the frames for the content frame
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return nsHTMLContainerFrame::SetInitialChildList(nsnull, aChildList);
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}
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class nsDisplayFieldSetBorderBackground : public nsDisplayItem {
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public:
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nsDisplayFieldSetBorderBackground(nsFieldSetFrame* aFrame)
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: nsDisplayItem(aFrame) {
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MOZ_COUNT_CTOR(nsDisplayFieldSetBorderBackground);
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}
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#ifdef NS_BUILD_REFCNT_LOGGING
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virtual ~nsDisplayFieldSetBorderBackground() {
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MOZ_COUNT_DTOR(nsDisplayFieldSetBorderBackground);
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}
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#endif
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virtual nsIFrame* HitTest(nsDisplayListBuilder* aBuilder, nsPoint aPt);
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virtual void Paint(nsDisplayListBuilder* aBuilder, nsIRenderingContext* aCtx,
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const nsRect& aDirtyRect);
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NS_DISPLAY_DECL_NAME("FieldSetBorderBackground")
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};
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nsIFrame* nsDisplayFieldSetBorderBackground::HitTest(nsDisplayListBuilder* aBuilder,
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nsPoint aPt)
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{
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// aPt is guaranteed to be in this item's bounds. We do the hit test based on the
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// frame bounds even though our background doesn't cover the whole frame.
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// It's not clear whether this is correct.
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return mFrame;
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}
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void
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nsDisplayFieldSetBorderBackground::Paint(nsDisplayListBuilder* aBuilder,
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nsIRenderingContext* aCtx, const nsRect& aDirtyRect)
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{
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NS_STATIC_CAST(nsFieldSetFrame*, mFrame)->
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PaintBorderBackground(*aCtx, aBuilder->ToReferenceFrame(mFrame), aDirtyRect);
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}
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NS_IMETHODIMP
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nsFieldSetFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists) {
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// Paint our background and border in a special way.
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// REVIEW: We don't really need to check frame emptiness here; if it's empty,
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// the background/border display item won't do anything, and if it isn't empty,
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// we need to paint the outline
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if (IsVisibleForPainting(aBuilder)) {
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// don't bother checking to see if we really have a border or background.
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// we usually will have a border.
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nsresult rv = aLists.BorderBackground()->AppendNewToTop(new (aBuilder)
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nsDisplayFieldSetBorderBackground(this));
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NS_ENSURE_SUCCESS(rv, rv);
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rv = DisplayOutlineUnconditional(aBuilder, aLists);
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NS_ENSURE_SUCCESS(rv, rv);
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}
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if (mLegendFrame) {
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nsDisplayListSet set(aLists, aLists.Content());
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nsresult rv = BuildDisplayListForChild(aBuilder, mLegendFrame, aDirtyRect, set);
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NS_ENSURE_SUCCESS(rv, rv);
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}
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if (!mContentFrame)
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return NS_OK;
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// Allow mContentFrame's background to go onto our BorderBackground() list,
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// this is OK since it won't have a real background except for event
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// handling.
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return BuildDisplayListForChild(aBuilder, mContentFrame, aDirtyRect, aLists);
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// REVIEW: debug borders are always painted by nsFrame::BuildDisplayListForChild
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// (or by the PresShell for the top level painted frame)
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}
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void
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nsFieldSetFrame::PaintBorderBackground(nsIRenderingContext& aRenderingContext,
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nsPoint aPt, const nsRect& aDirtyRect)
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{
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PRIntn skipSides = GetSkipSides();
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const nsStyleBorder* borderStyle = GetStyleBorder();
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const nsStylePadding* paddingStyle = GetStylePadding();
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nscoord topBorder = borderStyle->GetBorderWidth(NS_SIDE_TOP);
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nscoord yoff = 0;
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nsPresContext* presContext = GetPresContext();
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// if the border is smaller than the legend. Move the border down
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// to be centered on the legend.
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if (topBorder < mLegendRect.height)
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yoff = (mLegendRect.height - topBorder)/2;
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nsRect rect(aPt.x, aPt.y + yoff, mRect.width, mRect.height - yoff);
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nsCSSRendering::PaintBackground(presContext, aRenderingContext, this,
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aDirtyRect, rect, *borderStyle,
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*paddingStyle, PR_TRUE);
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if (mLegendFrame) {
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// Use the rect of the legend frame, not mLegendRect, so we draw our
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// border under the legend's left and right margins.
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nsRect legendRect = mLegendFrame->GetRect() + aPt;
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// we should probably use PaintBorderEdges to do this but for now just use clipping
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// to achieve the same effect.
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// draw left side
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nsRect clipRect(rect);
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clipRect.width = legendRect.x - rect.x;
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clipRect.height = topBorder;
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aRenderingContext.PushState();
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aRenderingContext.SetClipRect(clipRect, nsClipCombine_kIntersect);
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nsCSSRendering::PaintBorder(presContext, aRenderingContext, this,
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aDirtyRect, rect, *borderStyle, mStyleContext, skipSides);
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aRenderingContext.PopState();
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// draw right side
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clipRect = rect;
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clipRect.x = legendRect.XMost();
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clipRect.width = rect.XMost() - legendRect.XMost();
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clipRect.height = topBorder;
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aRenderingContext.PushState();
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aRenderingContext.SetClipRect(clipRect, nsClipCombine_kIntersect);
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nsCSSRendering::PaintBorder(presContext, aRenderingContext, this,
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aDirtyRect, rect, *borderStyle, mStyleContext, skipSides);
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aRenderingContext.PopState();
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// draw bottom
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clipRect = rect;
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clipRect.y += topBorder;
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clipRect.height = mRect.height - (yoff + topBorder);
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aRenderingContext.PushState();
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aRenderingContext.SetClipRect(clipRect, nsClipCombine_kIntersect);
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nsCSSRendering::PaintBorder(presContext, aRenderingContext, this,
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aDirtyRect, rect, *borderStyle, mStyleContext, skipSides);
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aRenderingContext.PopState();
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} else {
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nsCSSRendering::PaintBorder(presContext, aRenderingContext, this,
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aDirtyRect,
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nsRect(aPt, mRect.Size()),
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*borderStyle, mStyleContext, skipSides);
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}
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}
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NS_IMETHODIMP
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nsFieldSetFrame::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("nsFieldSetFrame", aReflowState.reason);
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DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
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// Initialize OUT parameter
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aStatus = NS_FRAME_COMPLETE;
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//------------ Handle Incremental Reflow -----------------
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PRBool reflowContent = PR_TRUE;
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PRBool reflowLegend = PR_TRUE;
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nsReflowReason reason = aReflowState.reason;
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if (reason == eReflowReason_Incremental) {
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nsHTMLReflowCommand *command = aReflowState.path->mReflowCommand;
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// See if it's targeted at us
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if (command) {
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nsReflowType reflowType;
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command->GetType(reflowType);
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switch (reflowType) {
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case eReflowType_StyleChanged:
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reason = eReflowReason_StyleChange;
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break;
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case eReflowType_ReflowDirty:
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reason = eReflowReason_Dirty;
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break;
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default:
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NS_ERROR("Unexpected Reflow Type");
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}
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} else {
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reflowContent = PR_FALSE;
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reflowLegend = PR_FALSE;
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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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if (*iter == mLegendFrame)
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reflowLegend = PR_TRUE;
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else if (*iter == mContentFrame)
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reflowContent = PR_TRUE;
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}
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}
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}
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if (aDesiredSize.mFlags & NS_REFLOW_CALC_MAX_WIDTH) {
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reflowLegend = PR_TRUE;
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reflowContent = PR_TRUE;
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} else if (reason == eReflowReason_Dirty) {
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// if dirty then check dirty flags
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if (GetStateBits() & NS_FRAME_IS_DIRTY) {
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reflowLegend = PR_TRUE;
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reflowContent = PR_TRUE;
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} else {
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if (reflowContent) {
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reflowContent = mContentFrame ?
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(mContentFrame->GetStateBits()
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& (NS_FRAME_IS_DIRTY | NS_FRAME_HAS_DIRTY_CHILDREN)) != 0 : PR_FALSE;
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}
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if (reflowLegend) {
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reflowLegend = mLegendFrame ?
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(mLegendFrame->GetStateBits()
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& (NS_FRAME_IS_DIRTY | NS_FRAME_HAS_DIRTY_CHILDREN)) != 0 : PR_FALSE;
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}
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}
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}
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// availSize could have unconstrained values, don't perform any addition on them
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nsSize availSize(aReflowState.mComputedWidth, aReflowState.availableHeight);
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// get our border and padding
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const nsMargin &borderPadding = aReflowState.mComputedBorderPadding;
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const nsMargin &padding = aReflowState.mComputedPadding;
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nsMargin border = borderPadding - padding;
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if (aDesiredSize.mComputeMEW) {
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aDesiredSize.mMaxElementWidth = borderPadding.left + borderPadding.right;
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}
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// Figure out how big the legend is if there is one.
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// get the legend's margin
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nsMargin legendMargin(0,0,0,0);
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// reflow the legend only if needed
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if (mLegendFrame) {
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const nsStyleMargin* marginStyle = mLegendFrame->GetStyleMargin();
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marginStyle->GetMargin(legendMargin);
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if (reflowLegend) {
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nsHTMLReflowState legendReflowState(aPresContext, aReflowState,
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mLegendFrame, nsSize(NS_INTRINSICSIZE,NS_INTRINSICSIZE),
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reason);
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// always give the legend as much size as it needs
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legendReflowState.mComputedWidth = NS_INTRINSICSIZE;
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legendReflowState.mComputedHeight = NS_INTRINSICSIZE;
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nsHTMLReflowMetrics legendDesiredSize(0,0);
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ReflowChild(mLegendFrame, aPresContext, legendDesiredSize, legendReflowState,
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0, 0, NS_FRAME_NO_MOVE_FRAME, aStatus);
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#ifdef NOISY_REFLOW
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printf(" returned (%d, %d)\n", legendDesiredSize.width, legendDesiredSize.height);
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if (legendDesiredSize.mComputeMEW)
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printf(" and maxEW %d\n",
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legendDesiredSize.mMaxElementWidth);
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#endif
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// figure out the legend's rectangle
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mLegendRect.width = legendDesiredSize.width + legendMargin.left + legendMargin.right;
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mLegendRect.height = legendDesiredSize.height + legendMargin.top + legendMargin.bottom;
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mLegendRect.x = borderPadding.left;
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mLegendRect.y = 0;
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nscoord oldSpace = mLegendSpace;
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mLegendSpace = 0;
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if (mLegendRect.height > border.top) {
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// center the border on the legend
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mLegendSpace = mLegendRect.height - border.top;
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} else {
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mLegendRect.y = (border.top - mLegendRect.height)/2;
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}
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// if the legend space changes then we need to reflow the
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// content area as well.
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if (mLegendSpace != oldSpace) {
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if (reflowContent == PR_FALSE || reason == eReflowReason_Dirty) {
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reflowContent = PR_TRUE;
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reason = eReflowReason_Resize;
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}
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}
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// if we are contrained then remove the legend from our available height.
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if (NS_INTRINSICSIZE != availSize.height) {
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if (availSize.height >= mLegendSpace)
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availSize.height -= mLegendSpace;
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}
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// don't get any smaller than the legend
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if (NS_INTRINSICSIZE != availSize.width) {
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if (availSize.width < mLegendRect.width)
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availSize.width = mLegendRect.width;
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}
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FinishReflowChild(mLegendFrame, aPresContext, &legendReflowState,
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legendDesiredSize, 0, 0, NS_FRAME_NO_MOVE_FRAME);
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}
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} else {
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mLegendRect.Empty();
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mLegendSpace = 0;
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}
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nsRect contentRect;
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// reflow the content frame only if needed
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if (mContentFrame) {
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if (reflowContent) {
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availSize.width = aReflowState.mComputedWidth;
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nsHTMLReflowState kidReflowState(aPresContext, aReflowState, mContentFrame,
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availSize, reason);
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nsHTMLReflowMetrics kidDesiredSize(aDesiredSize.mComputeMEW, aDesiredSize.mFlags);
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// Reflow the frame
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ReflowChild(mContentFrame, aPresContext, kidDesiredSize, kidReflowState,
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borderPadding.left + kidReflowState.mComputedMargin.left,
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borderPadding.top + mLegendSpace + kidReflowState.mComputedMargin.top,
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0, aStatus);
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// set the rect. make sure we add the margin back in.
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contentRect.SetRect(borderPadding.left,borderPadding.top + mLegendSpace,kidDesiredSize.width ,kidDesiredSize.height);
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if (aReflowState.mComputedHeight != NS_INTRINSICSIZE &&
|
|
borderPadding.top + mLegendSpace+kidDesiredSize.height > aReflowState.mComputedHeight) {
|
|
kidDesiredSize.height = aReflowState.mComputedHeight-(borderPadding.top + mLegendSpace);
|
|
}
|
|
|
|
FinishReflowChild(mContentFrame, aPresContext, &kidReflowState,
|
|
kidDesiredSize, contentRect.x, contentRect.y, 0);
|
|
if (aDesiredSize.mComputeMEW) {
|
|
aDesiredSize.mMaxElementWidth = kidDesiredSize.mMaxElementWidth;
|
|
if (eStyleUnit_Coord == aReflowState.mStylePosition->mWidth.GetUnit() &&
|
|
NS_INTRINSICSIZE != aReflowState.mComputedWidth)
|
|
aDesiredSize.mMaxElementWidth = aReflowState.mComputedWidth;
|
|
if (eStyleUnit_Percent == aReflowState.mStylePosition->mWidth.GetUnit())
|
|
aDesiredSize.mMaxElementWidth = 0;
|
|
aDesiredSize.mMaxElementWidth += borderPadding.left + borderPadding.right;
|
|
}
|
|
if (aDesiredSize.mFlags & NS_REFLOW_CALC_MAX_WIDTH) {
|
|
aDesiredSize.mMaximumWidth = kidDesiredSize.mMaximumWidth +
|
|
borderPadding.left + borderPadding.right;
|
|
}
|
|
NS_FRAME_TRACE_REFLOW_OUT("FieldSet::Reflow", aStatus);
|
|
|
|
} else {
|
|
// if we don't need to reflow just get the old size
|
|
contentRect = mContentFrame->GetRect();
|
|
const nsStyleMargin* marginStyle = mContentFrame->GetStyleMargin();
|
|
|
|
nsMargin m(0,0,0,0);
|
|
marginStyle->GetMargin(m);
|
|
contentRect.Inflate(m);
|
|
}
|
|
}
|
|
|
|
// use the computed width if the inner content does not fill it
|
|
if (aReflowState.mComputedWidth != NS_INTRINSICSIZE &&
|
|
aReflowState.mComputedWidth > contentRect.width) {
|
|
contentRect.width = aReflowState.mComputedWidth;
|
|
}
|
|
|
|
if (mLegendFrame) {
|
|
// if the content rect is larger then the legend we can align the legend
|
|
if (contentRect.width > mLegendRect.width) {
|
|
PRInt32 align = ((nsLegendFrame*)mLegendFrame)->GetAlign();
|
|
|
|
switch(align) {
|
|
case NS_STYLE_TEXT_ALIGN_RIGHT:
|
|
mLegendRect.x = contentRect.width - mLegendRect.width + borderPadding.left;
|
|
break;
|
|
case NS_STYLE_TEXT_ALIGN_CENTER:
|
|
float p2t;
|
|
p2t = aPresContext->PixelsToTwips();
|
|
mLegendRect.x = NSIntPixelsToTwips((nscoord) NSToIntRound((float)(contentRect.width/2 - mLegendRect.width/2 + borderPadding.left) / p2t),p2t);
|
|
break;
|
|
}
|
|
|
|
} else {
|
|
//otherwise make place for the legend
|
|
contentRect.width = mLegendRect.width;
|
|
}
|
|
// place the legend
|
|
nsRect actualLegendRect(mLegendRect);
|
|
actualLegendRect.Deflate(legendMargin);
|
|
|
|
nsPoint curOrigin = mLegendFrame->GetPosition();
|
|
|
|
// only if the origin changed
|
|
if ((curOrigin.x != mLegendRect.x) || (curOrigin.y != mLegendRect.y)) {
|
|
mLegendFrame->SetPosition(nsPoint(actualLegendRect.x , actualLegendRect.y));
|
|
nsContainerFrame::PositionFrameView(mLegendFrame);
|
|
|
|
// We need to recursively process the legend frame's
|
|
// children since we're moving the frame after Reflow.
|
|
nsContainerFrame::PositionChildViews(mLegendFrame);
|
|
}
|
|
}
|
|
|
|
// Return our size and our result
|
|
if (aReflowState.mComputedHeight == NS_INTRINSICSIZE) {
|
|
aDesiredSize.height = mLegendSpace +
|
|
borderPadding.top +
|
|
contentRect.height +
|
|
borderPadding.bottom;
|
|
} else {
|
|
nscoord min = borderPadding.top + borderPadding.bottom + mLegendRect.height;
|
|
aDesiredSize.height = aReflowState.mComputedHeight + borderPadding.top + borderPadding.bottom;
|
|
if (aDesiredSize.height < min)
|
|
aDesiredSize.height = min;
|
|
}
|
|
aDesiredSize.width = contentRect.width + borderPadding.left + borderPadding.right;
|
|
aDesiredSize.ascent = aDesiredSize.height;
|
|
aDesiredSize.descent = 0;
|
|
if (aDesiredSize.mComputeMEW) {
|
|
// if the legend is wider use it
|
|
if (aDesiredSize.mMaxElementWidth < mLegendRect.width + borderPadding.left + borderPadding.right)
|
|
aDesiredSize.mMaxElementWidth = mLegendRect.width + borderPadding.left + borderPadding.right;
|
|
}
|
|
aDesiredSize.mOverflowArea = nsRect(0, 0, aDesiredSize.width, aDesiredSize.height);
|
|
// make the mMaximumWidth large enough if the legendframe determines the size
|
|
if ((aDesiredSize.mFlags & NS_REFLOW_CALC_MAX_WIDTH) && mLegendFrame) {
|
|
aDesiredSize.mMaximumWidth = PR_MAX(aDesiredSize.mMaximumWidth, mLegendRect.width +
|
|
borderPadding.left + borderPadding.right);
|
|
}
|
|
if (mLegendFrame)
|
|
ConsiderChildOverflow(aDesiredSize.mOverflowArea, mLegendFrame);
|
|
if (mContentFrame)
|
|
ConsiderChildOverflow(aDesiredSize.mOverflowArea, mContentFrame);
|
|
FinishAndStoreOverflow(&aDesiredSize);
|
|
|
|
Invalidate(aDesiredSize.mOverflowArea);
|
|
|
|
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
|
|
return NS_OK;
|
|
}
|
|
|
|
PRIntn
|
|
nsFieldSetFrame::GetSkipSides() const
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFieldSetFrame::AppendFrames(nsIAtom* aListName,
|
|
nsIFrame* aFrameList)
|
|
{
|
|
aFrameList = MaybeSetLegend(aFrameList, aListName);
|
|
if (aFrameList) {
|
|
ReParentFrameList(aFrameList);
|
|
return mContentFrame->AppendFrames(aListName, aFrameList);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFieldSetFrame::InsertFrames(nsIAtom* aListName,
|
|
nsIFrame* aPrevFrame,
|
|
nsIFrame* aFrameList)
|
|
{
|
|
NS_ASSERTION(!aPrevFrame || aPrevFrame->GetParent() == this ||
|
|
aPrevFrame->GetParent() == mContentFrame,
|
|
"inserting after sibling frame with different parent");
|
|
|
|
aFrameList = MaybeSetLegend(aFrameList, aListName);
|
|
if (aFrameList) {
|
|
ReParentFrameList(aFrameList);
|
|
return mContentFrame->InsertFrames(aListName, aPrevFrame, aFrameList);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsFieldSetFrame::RemoveFrame(nsIAtom* aListName,
|
|
nsIFrame* aOldFrame)
|
|
{
|
|
// For reference, see bug 70648, bug 276104 and bug 236071.
|
|
if (aOldFrame == mLegendFrame) {
|
|
NS_ASSERTION(!aListName, "Unexpected frame list when removing legend frame");
|
|
NS_ASSERTION(mLegendFrame->GetParent() == this, "Legend Parent has wrong parent");
|
|
NS_ASSERTION(mLegendFrame->GetNextSibling() == mContentFrame, "mContentFrame is not next sibling");
|
|
|
|
mFrames.DestroyFrame(mLegendFrame);
|
|
mLegendFrame = nsnull;
|
|
AddStateBits(NS_FRAME_IS_DIRTY);
|
|
if (GetParent()) {
|
|
GetParent()->ReflowDirtyChild(GetPresContext()->GetPresShell(), this);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
return mContentFrame->RemoveFrame(aListName, aOldFrame);
|
|
}
|
|
|
|
#ifdef ACCESSIBILITY
|
|
NS_IMETHODIMP nsFieldSetFrame::GetAccessible(nsIAccessible** aAccessible)
|
|
{
|
|
nsCOMPtr<nsIAccessibilityService> accService = do_GetService("@mozilla.org/accessibilityService;1");
|
|
|
|
if (accService) {
|
|
return accService->CreateHTMLGroupboxAccessible(NS_STATIC_CAST(nsIFrame*, this), aAccessible);
|
|
}
|
|
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
#endif
|
|
|
|
nsIFrame*
|
|
nsFieldSetFrame::MaybeSetLegend(nsIFrame* aFrameList, nsIAtom* aListName)
|
|
{
|
|
if (!mLegendFrame && aFrameList->GetType() == nsLayoutAtoms::legendFrame) {
|
|
NS_ASSERTION(!aListName, "Unexpected frame list when adding legend frame");
|
|
mLegendFrame = aFrameList;
|
|
aFrameList = mLegendFrame->GetNextSibling();
|
|
mLegendFrame->SetNextSibling(mContentFrame);
|
|
mFrames.SetFrames(mLegendFrame);
|
|
AddStateBits(NS_FRAME_IS_DIRTY);
|
|
if (GetParent()) {
|
|
GetParent()->ReflowDirtyChild(mLegendFrame->GetPresContext()->GetPresShell(), this);
|
|
}
|
|
}
|
|
return aFrameList;
|
|
}
|
|
|
|
void
|
|
nsFieldSetFrame::ReParentFrameList(nsIFrame* aFrameList)
|
|
{
|
|
nsFrameManager* frameManager = GetPresContext()->FrameManager();
|
|
for (nsIFrame* frame = aFrameList; frame; frame = frame->GetNextSibling()) {
|
|
frame->SetParent(mContentFrame);
|
|
frameManager->ReParentStyleContext(frame);
|
|
}
|
|
mContentFrame->AddStateBits(GetStateBits() & NS_FRAME_HAS_CHILD_WITH_VIEW);
|
|
}
|