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gecko-dev/layout/forms/nsFieldSetFrame.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
// YY need to pass isMultiple before create called
//#include "nsFormControlFrame.h"
#include "nsHTMLContainerFrame.h"
#include "nsLegendFrame.h"
#include "nsIDOMNode.h"
#include "nsIDOMHTMLFieldSetElement.h"
#include "nsIDOMHTMLLegendElement.h"
#include "nsCSSRendering.h"
//#include "nsIDOMHTMLCollection.h"
#include "nsIContent.h"
#include "nsIFrame.h"
#include "nsISupports.h"
#include "nsIAtom.h"
#include "nsPresContext.h"
#include "nsFrameManager.h"
#include "nsHTMLParts.h"
#include "nsHTMLAtoms.h"
#include "nsLayoutAtoms.h"
#include "nsStyleConsts.h"
#include "nsFont.h"
#include "nsCOMPtr.h"
#ifdef ACCESSIBILITY
#include "nsIAccessibilityService.h"
#endif
#include "nsIServiceManager.h"
#include "nsDisplayList.h"
class nsLegendFrame;
class nsFieldSetFrame : public nsHTMLContainerFrame {
public:
nsFieldSetFrame(nsStyleContext* aContext);
NS_IMETHOD SetInitialChildList(nsPresContext* aPresContext,
nsIAtom* aListName,
nsIFrame* aChildList);
NS_IMETHOD Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus);
NS_IMETHOD BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists);
void PaintBorderBackground(nsIRenderingContext& aRenderingContext,
nsPoint aPt, const nsRect& aDirtyRect);
NS_IMETHOD AppendFrames(nsIAtom* aListName,
nsIFrame* aFrameList);
NS_IMETHOD InsertFrames(nsIAtom* aListName,
nsIFrame* aPrevFrame,
nsIFrame* aFrameList);
NS_IMETHOD RemoveFrame(nsIAtom* aListName,
nsIFrame* aOldFrame);
virtual nsIAtom* GetType() const;
virtual PRBool IsContainingBlock() const;
#ifdef ACCESSIBILITY
NS_IMETHOD GetAccessible(nsIAccessible** aAccessible);
#endif
#ifdef DEBUG
NS_IMETHOD GetFrameName(nsAString& aResult) const {
return MakeFrameName(NS_LITERAL_STRING("FieldSet"), aResult);
}
#endif
protected:
virtual PRIntn GetSkipSides() const;
nsIFrame* MaybeSetLegend(nsIFrame* aFrameList, nsIAtom* aListName);
void ReParentFrameList(nsIFrame* aFrameList);
nsIFrame* mLegendFrame;
nsIFrame* mContentFrame;
nsRect mLegendRect;
nscoord mLegendSpace;
};
nsIFrame*
NS_NewFieldSetFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
{
return new (aPresShell) nsFieldSetFrame(aContext);
}
nsFieldSetFrame::nsFieldSetFrame(nsStyleContext* aContext)
: nsHTMLContainerFrame(aContext)
{
mContentFrame = nsnull;
mLegendFrame = nsnull;
mLegendSpace = 0;
}
nsIAtom*
nsFieldSetFrame::GetType() const
{
return nsLayoutAtoms::fieldSetFrame;
}
PRBool
nsFieldSetFrame::IsContainingBlock() const
{
return PR_TRUE;
}
NS_IMETHODIMP
nsFieldSetFrame::SetInitialChildList(nsPresContext* aPresContext,
nsIAtom* aListName,
nsIFrame* aChildList)
{
// Get the content and legend frames.
if (aChildList->GetNextSibling()) {
mContentFrame = aChildList->GetNextSibling();
mLegendFrame = aChildList;
} else {
mContentFrame = aChildList;
mLegendFrame = nsnull;
}
// Queue up the frames for the content frame
return nsHTMLContainerFrame::SetInitialChildList(aPresContext, nsnull, aChildList);
}
class nsDisplayFieldSetBorderBackground : public nsDisplayItem {
public:
nsDisplayFieldSetBorderBackground(nsFieldSetFrame* aFrame)
: nsDisplayItem(aFrame) {
MOZ_COUNT_CTOR(nsDisplayFieldSetBorderBackground);
}
#ifdef NS_BUILD_REFCNT_LOGGING
virtual ~nsDisplayFieldSetBorderBackground() {
MOZ_COUNT_DTOR(nsDisplayFieldSetBorderBackground);
}
#endif
virtual nsIFrame* HitTest(nsDisplayListBuilder* aBuilder, nsPoint aPt);
virtual void Paint(nsDisplayListBuilder* aBuilder, nsIRenderingContext* aCtx,
const nsRect& aDirtyRect);
NS_DISPLAY_DECL_NAME("FieldSetBorderBackground")
};
nsIFrame* nsDisplayFieldSetBorderBackground::HitTest(nsDisplayListBuilder* aBuilder,
nsPoint aPt)
{
// aPt is guaranteed to be in this item's bounds. We do the hit test based on the
// frame bounds even though our background doesn't cover the whole frame.
// It's not clear whether this is correct.
return mFrame;
}
void
nsDisplayFieldSetBorderBackground::Paint(nsDisplayListBuilder* aBuilder,
nsIRenderingContext* aCtx, const nsRect& aDirtyRect)
{
NS_STATIC_CAST(nsFieldSetFrame*, mFrame)->
PaintBorderBackground(*aCtx, aBuilder->ToReferenceFrame(mFrame), aDirtyRect);
}
NS_IMETHODIMP
nsFieldSetFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists) {
// Paint our background and border in a special way.
// REVIEW: We don't really need to check frame emptiness here; if it's empty,
// the background/border display item won't do anything, and if it isn't empty,
// we need to paint the outline
if (IsVisibleForPainting(aBuilder)) {
// don't bother checking to see if we really have a border or background.
// we usually will have a border.
nsresult rv = aLists.BorderBackground()->AppendNewToTop(new (aBuilder)
nsDisplayFieldSetBorderBackground(this));
NS_ENSURE_SUCCESS(rv, rv);
rv = DisplayOutlineUnconditional(aBuilder, aLists);
NS_ENSURE_SUCCESS(rv, rv);
}
if (mLegendFrame) {
nsDisplayListSet set(aLists, aLists.Content());
nsresult rv = BuildDisplayListForChild(aBuilder, mLegendFrame, aDirtyRect, set);
NS_ENSURE_SUCCESS(rv, rv);
}
if (!mContentFrame)
return NS_OK;
// Allow mContentFrame's background to go onto our BorderBackground() list,
// this is OK since it won't have a real background except for event
// handling.
return BuildDisplayListForChild(aBuilder, mContentFrame, aDirtyRect, aLists);
// REVIEW: debug borders are always painted by nsFrame::BuildDisplayListForChild
// (or by the PresShell for the top level painted frame)
}
void
nsFieldSetFrame::PaintBorderBackground(nsIRenderingContext& aRenderingContext,
nsPoint aPt, const nsRect& aDirtyRect)
{
PRIntn skipSides = GetSkipSides();
const nsStyleBorder* borderStyle = GetStyleBorder();
const nsStylePadding* paddingStyle = GetStylePadding();
nscoord topBorder = borderStyle->GetBorderWidth(NS_SIDE_TOP);
nscoord yoff = 0;
nsPresContext* presContext = GetPresContext();
// if the border is smaller than the legend. Move the border down
// to be centered on the legend.
if (topBorder < mLegendRect.height)
yoff = (mLegendRect.height - topBorder)/2;
nsRect rect(aPt.x, aPt.y + yoff, mRect.width, mRect.height - yoff);
nsCSSRendering::PaintBackground(presContext, aRenderingContext, this,
aDirtyRect, rect, *borderStyle,
*paddingStyle, PR_TRUE);
if (mLegendFrame) {
// Use the rect of the legend frame, not mLegendRect, so we draw our
// border under the legend's left and right margins.
nsRect legendRect = mLegendFrame->GetRect() + aPt;
// we should probably use PaintBorderEdges to do this but for now just use clipping
// to achieve the same effect.
// draw left side
nsRect clipRect(rect);
clipRect.width = legendRect.x - rect.x;
clipRect.height = topBorder;
aRenderingContext.PushState();
aRenderingContext.SetClipRect(clipRect, nsClipCombine_kIntersect);
nsCSSRendering::PaintBorder(presContext, aRenderingContext, this,
aDirtyRect, rect, *borderStyle, mStyleContext, skipSides);
aRenderingContext.PopState();
// draw right side
clipRect = rect;
clipRect.x = legendRect.XMost();
clipRect.width = rect.XMost() - legendRect.XMost();
clipRect.height = topBorder;
aRenderingContext.PushState();
aRenderingContext.SetClipRect(clipRect, nsClipCombine_kIntersect);
nsCSSRendering::PaintBorder(presContext, aRenderingContext, this,
aDirtyRect, rect, *borderStyle, mStyleContext, skipSides);
aRenderingContext.PopState();
// draw bottom
clipRect = rect;
clipRect.y += topBorder;
clipRect.height = mRect.height - (yoff + topBorder);
aRenderingContext.PushState();
aRenderingContext.SetClipRect(clipRect, nsClipCombine_kIntersect);
nsCSSRendering::PaintBorder(presContext, aRenderingContext, this,
aDirtyRect, rect, *borderStyle, mStyleContext, skipSides);
aRenderingContext.PopState();
} else {
nsCSSRendering::PaintBorder(presContext, aRenderingContext, this,
aDirtyRect,
nsRect(aPt, mRect.Size()),
*borderStyle, mStyleContext, skipSides);
}
}
NS_IMETHODIMP
nsFieldSetFrame::Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus)
{
DO_GLOBAL_REFLOW_COUNT("nsFieldSetFrame", aReflowState.reason);
DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
// Initialize OUT parameter
aStatus = NS_FRAME_COMPLETE;
//------------ Handle Incremental Reflow -----------------
PRBool reflowContent = PR_TRUE;
PRBool reflowLegend = PR_TRUE;
nsReflowReason reason = aReflowState.reason;
if (reason == eReflowReason_Incremental) {
nsHTMLReflowCommand *command = aReflowState.path->mReflowCommand;
// See if it's targeted at us
if (command) {
nsReflowType reflowType;
command->GetType(reflowType);
switch (reflowType) {
case eReflowType_StyleChanged:
reason = eReflowReason_StyleChange;
break;
case eReflowType_ReflowDirty:
reason = eReflowReason_Dirty;
break;
default:
NS_ERROR("Unexpected Reflow Type");
}
} else {
reflowContent = PR_FALSE;
reflowLegend = PR_FALSE;
nsReflowPath::iterator iter = aReflowState.path->FirstChild();
nsReflowPath::iterator end = aReflowState.path->EndChildren();
for ( ; iter != end; ++iter) {
if (*iter == mLegendFrame)
reflowLegend = PR_TRUE;
else if (*iter == mContentFrame)
reflowContent = PR_TRUE;
}
}
}
if (aDesiredSize.mFlags & NS_REFLOW_CALC_MAX_WIDTH) {
reflowLegend = PR_TRUE;
reflowContent = PR_TRUE;
} else if (reason == eReflowReason_Dirty) {
// if dirty then check dirty flags
if (GetStateBits() & NS_FRAME_IS_DIRTY) {
reflowLegend = PR_TRUE;
reflowContent = PR_TRUE;
} else {
if (reflowContent) {
reflowContent = mContentFrame ?
(mContentFrame->GetStateBits()
& (NS_FRAME_IS_DIRTY | NS_FRAME_HAS_DIRTY_CHILDREN)) != 0 : PR_FALSE;
}
if (reflowLegend) {
reflowLegend = mLegendFrame ?
(mLegendFrame->GetStateBits()
& (NS_FRAME_IS_DIRTY | NS_FRAME_HAS_DIRTY_CHILDREN)) != 0 : PR_FALSE;
}
}
}
// availSize could have unconstrained values, don't perform any addition on them
nsSize availSize(aReflowState.mComputedWidth, aReflowState.availableHeight);
// get our border and padding
const nsMargin &borderPadding = aReflowState.mComputedBorderPadding;
const nsMargin &padding = aReflowState.mComputedPadding;
nsMargin border = borderPadding - padding;
if (aDesiredSize.mComputeMEW) {
aDesiredSize.mMaxElementWidth = borderPadding.left + borderPadding.right;
}
// Figure out how big the legend is if there is one.
// get the legend's margin
nsMargin legendMargin(0,0,0,0);
// reflow the legend only if needed
if (mLegendFrame) {
const nsStyleMargin* marginStyle = mLegendFrame->GetStyleMargin();
marginStyle->GetMargin(legendMargin);
if (reflowLegend) {
nsHTMLReflowState legendReflowState(aPresContext, aReflowState,
mLegendFrame, nsSize(NS_INTRINSICSIZE,NS_INTRINSICSIZE),
reason);
// always give the legend as much size as it needs
legendReflowState.mComputedWidth = NS_INTRINSICSIZE;
legendReflowState.mComputedHeight = NS_INTRINSICSIZE;
nsHTMLReflowMetrics legendDesiredSize(0,0);
ReflowChild(mLegendFrame, aPresContext, legendDesiredSize, legendReflowState,
0, 0, NS_FRAME_NO_MOVE_FRAME, aStatus);
#ifdef NOISY_REFLOW
printf(" returned (%d, %d)\n", legendDesiredSize.width, legendDesiredSize.height);
if (legendDesiredSize.mComputeMEW)
printf(" and maxEW %d\n",
legendDesiredSize.mMaxElementWidth);
#endif
// figure out the legend's rectangle
mLegendRect.width = legendDesiredSize.width + legendMargin.left + legendMargin.right;
mLegendRect.height = legendDesiredSize.height + legendMargin.top + legendMargin.bottom;
mLegendRect.x = borderPadding.left;
mLegendRect.y = 0;
nscoord oldSpace = mLegendSpace;
mLegendSpace = 0;
if (mLegendRect.height > border.top) {
// center the border on the legend
mLegendSpace = mLegendRect.height - border.top;
} else {
mLegendRect.y = (border.top - mLegendRect.height)/2;
}
// if the legend space changes then we need to reflow the
// content area as well.
if (mLegendSpace != oldSpace) {
if (reflowContent == PR_FALSE || reason == eReflowReason_Dirty) {
reflowContent = PR_TRUE;
reason = eReflowReason_Resize;
}
}
// if we are contrained then remove the legend from our available height.
if (NS_INTRINSICSIZE != availSize.height) {
if (availSize.height >= mLegendSpace)
availSize.height -= mLegendSpace;
}
// don't get any smaller than the legend
if (NS_INTRINSICSIZE != availSize.width) {
if (availSize.width < mLegendRect.width)
availSize.width = mLegendRect.width;
}
FinishReflowChild(mLegendFrame, aPresContext, &legendReflowState,
legendDesiredSize, 0, 0, NS_FRAME_NO_MOVE_FRAME);
}
} else {
mLegendRect.Empty();
mLegendSpace = 0;
}
nsRect contentRect;
// reflow the content frame only if needed
if (mContentFrame) {
if (reflowContent) {
availSize.width = aReflowState.mComputedWidth;
nsHTMLReflowState kidReflowState(aPresContext, aReflowState, mContentFrame,
availSize, reason);
nsHTMLReflowMetrics kidDesiredSize(aDesiredSize.mComputeMEW, aDesiredSize.mFlags);
// Reflow the frame
ReflowChild(mContentFrame, aPresContext, kidDesiredSize, kidReflowState,
borderPadding.left + kidReflowState.mComputedMargin.left,
borderPadding.top + mLegendSpace + kidReflowState.mComputedMargin.top,
0, aStatus);
// set the rect. make sure we add the margin back in.
contentRect.SetRect(borderPadding.left,borderPadding.top + mLegendSpace,kidDesiredSize.width ,kidDesiredSize.height);
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)
{
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");
nsPresContext* presContext = GetPresContext();
mFrames.DestroyFrame(presContext, mLegendFrame);
mLegendFrame = nsnull;
AddStateBits(NS_FRAME_IS_DIRTY);
if (GetParent()) {
GetParent()->ReflowDirtyChild(presContext->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);
}
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