/* boolean hasMoreElements (); */
NS_IMETHODIMP nsDocShellEnumerator::HasMoreElements(PRBool *outHasMore)
{
NS_ENSURE_ARG_POINTER(outHasMore);
*outHasMore = PR_FALSE;
nsresult rv = EnsureDocShellArray();
if (NS_FAILED(rv)) return rv;
*outHasMore = (mCurIndex < mItemArray.Length());
return NS_OK;
}
NS_IMETHODIMP
nsDocShellEnumerator::HasMoreElements(bool* aResult)
{
NS_ENSURE_ARG_POINTER(aResult);
*aResult = false;
nsresult rv = EnsureDocShellArray();
if (NS_FAILED(rv)) {
return rv;
}
*aResult = (mCurIndex < mItemArray.Length());
return NS_OK;
}
/* nsISupports getNext (); */
NS_IMETHODIMP nsDocShellEnumerator::GetNext(nsISupports **outCurItem)
{
NS_ENSURE_ARG_POINTER(outCurItem);
*outCurItem = nsnull;
nsresult rv = EnsureDocShellArray();
if (NS_FAILED(rv)) return rv;
if (mCurIndex >= mItemArray.Length()) {
return NS_ERROR_FAILURE;
}
// post-increment is important here
return CallQueryInterface(mItemArray[mCurIndex++], outCurItem);
}
/* nsISupports getNext (); */
NS_IMETHODIMP nsDocShellEnumerator::GetNext(nsISupports **outCurItem)
{
NS_ENSURE_ARG_POINTER(outCurItem);
*outCurItem = nullptr;
nsresult rv = EnsureDocShellArray();
if (NS_FAILED(rv)) return rv;
if (mCurIndex >= mItemArray.Length()) {
return NS_ERROR_FAILURE;
}
// post-increment is important here
nsCOMPtr<nsISupports> item = do_QueryReferent(mItemArray[mCurIndex++], &rv);
item.forget(outCurItem);
return rv;
}
nsresult nsDocShellEnumerator::First()
{
mCurIndex = 0;
return EnsureDocShellArray();
}