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;
}
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);
}