NS_IMETHODIMP
nsARIAGridCellAccessible::GetColumnIndex(PRInt32 *aColumnIndex)
{
NS_ENSURE_ARG_POINTER(aColumnIndex);
*aColumnIndex = -1;
if (IsDefunct())
return NS_ERROR_FAILURE;
*aColumnIndex = 0;
nsCOMPtr<nsIAccessible> prevCell, tmpAcc;
GetPreviousSibling(getter_AddRefs(prevCell));
while (prevCell) {
PRUint32 role = nsAccUtils::Role(prevCell);
if (role == nsIAccessibleRole::ROLE_GRID_CELL ||
role == nsIAccessibleRole::ROLE_ROWHEADER ||
role == nsIAccessibleRole::ROLE_COLUMNHEADER)
(*aColumnIndex)++;
prevCell->GetPreviousSibling(getter_AddRefs(tmpAcc));
tmpAcc.swap(prevCell);
}
return NS_OK;
}
already_AddRefed<Element>
BoxObject::GetPreviousSibling()
{
nsCOMPtr<nsIDOMElement> el;
GetPreviousSibling(getter_AddRefs(el));
nsCOMPtr<Element> ret(do_QueryInterface(el));
return ret.forget();
}
NS_IMETHODIMP
BoxObject::GetLastChild(nsIDOMElement * *aLastVisibleChild)
{
*aLastVisibleChild = nullptr;
nsIFrame* frame = GetFrame(false);
if (!frame) return NS_OK;
return GetPreviousSibling(frame, nullptr, aLastVisibleChild);
}
NS_IMETHODIMP
nsBoxObject::GetLastChild(nsIDOMElement * *aLastVisibleChild)
{
*aLastVisibleChild = nsnull;
nsIFrame* frame = GetFrame(PR_FALSE);
if (!frame) return NS_OK;
return GetPreviousSibling(frame, nsnull, aLastVisibleChild);
}
NS_IMETHODIMP
BoxObject::GetPreviousSibling(nsIDOMElement **aPreviousOrdinalSibling)
{
*aPreviousOrdinalSibling = nullptr;
nsIFrame* frame = GetFrame(false);
if (!frame) return NS_OK;
nsIFrame* parentFrame = frame->GetParent();
if (!parentFrame) return NS_OK;
return GetPreviousSibling(parentFrame, frame, aPreviousOrdinalSibling);
}
