void
nsSVGPathSegList::AppendElement(nsSVGPathSeg* aElement)
{
WillModify();
// XXX: we should only remove an item from its current list if we
// successfully added it to this list
RemoveFromCurrentList(aElement);
mSegments.AppendObject(aElement);
aElement->SetCurrentList(this);
DidModify();
}
void
nsSVGPathSegList::InsertElementAt(nsSVGPathSeg* aElement, PRInt32 index)
{
WillModify();
// XXX: we should only remove an item from its current list if we
// successfully added it to this list
RemoveFromCurrentList(aElement);
mSegments.InsertObjectAt(aElement, index);
aElement->SetCurrentList(this);
DidModify();
}
/* nsIDOMSVGPathSeg replaceItem (in nsIDOMSVGPathSeg newItem, in unsigned long index); */
NS_IMETHODIMP nsSVGPathSegList::ReplaceItem(nsIDOMSVGPathSeg *newItem,
PRUint32 index,
nsIDOMSVGPathSeg **_retval)
{
NS_ENSURE_NATIVE_PATH_SEG(newItem, _retval);
// immediately remove the new item from its current list
nsSVGPathSeg* newItemSeg = static_cast<nsSVGPathSeg*>(newItem);
RemoveFromCurrentList(newItemSeg);
if (index >= static_cast<PRUint32>(mSegments.Count())) {
return NS_ERROR_DOM_INDEX_SIZE_ERR;
}
// NOTE: the new item can never be the item we will be replacing now that we removed it from its current list beforehand
InsertElementAt(newItemSeg, index);
RemoveFromCurrentList(static_cast<nsSVGPathSeg*>(mSegments.ObjectAt(index+1)));
NS_ADDREF(*_retval = newItem);
return NS_OK;
}
