NS_IMETHODIMP
nsXULTreeAccessible::GetFocusedChild(nsIAccessible **aFocusedChild)
{
NS_ENSURE_ARG_POINTER(aFocusedChild);
*aFocusedChild = nsnull;
if (IsDefunct())
return NS_ERROR_FAILURE;
if (gLastFocusedNode != mContent)
return NS_OK;
nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSelect =
do_QueryInterface(mContent);
if (multiSelect) {
PRInt32 row = -1;
multiSelect->GetCurrentIndex(&row);
if (row >= 0)
NS_IF_ADDREF(*aFocusedChild = GetTreeItemAccessible(row));
}
return NS_OK;
}
NS_IMETHODIMP
nsXULTreeGridAccessible::GetCellAt(PRInt32 aRowIndex, PRInt32 aColumnIndex,
nsIAccessible **aCell)
{
NS_ENSURE_ARG_POINTER(aCell);
*aCell = nsnull;
if (IsDefunct())
return NS_ERROR_FAILURE;
nsAccessible *rowAccessible = GetTreeItemAccessible(aRowIndex);
if (!rowAccessible)
return NS_ERROR_INVALID_ARG;
nsCOMPtr<nsITreeColumn> column =
nsCoreUtils::GetSensibleColumnAt(mTree, aColumnIndex);
if (!column)
return NS_ERROR_INVALID_ARG;
nsRefPtr<nsXULTreeItemAccessibleBase> rowAcc = do_QueryObject(rowAccessible);
NS_IF_ADDREF(*aCell = rowAcc->GetCellAccessible(column));
return NS_OK;
}
nsAccessible*
nsXULTreeAccessible::GetSelectedItem(PRUint32 aIndex)
{
nsCOMPtr<nsITreeSelection> selection;
mTreeView->GetSelection(getter_AddRefs(selection));
if (!selection)
return nsnull;
PRUint32 selCount = 0;
PRInt32 rangeCount = 0;
selection->GetRangeCount(&rangeCount);
for (PRInt32 rangeIdx = 0; rangeIdx < rangeCount; rangeIdx++) {
PRInt32 firstIdx = 0, lastIdx = -1;
selection->GetRangeAt(rangeIdx, &firstIdx, &lastIdx);
for (PRInt32 rowIdx = firstIdx; rowIdx <= lastIdx; rowIdx++) {
if (selCount == aIndex)
return GetTreeItemAccessible(rowIdx);
selCount++;
}
}
return nsnull;
}
