Can an extension detect that a given article has been transcluded from a given namespace? Here's why I ask.

On our wiki, we have an extension with a special restriction: it can be used only in a specific namespace, N. So it contains logic like this:

if ($title->getNamespace() == NS_N) { // render } else { // display an error message }

This works fine, but I would also like to permit articles in namespace N to be transcluded into other namespaces:

{{N:My article}}

This fails the extension's "Namespace = N" test and displays the error message. So I really want the logic to be:

if ($title->getNamespace() == NS_N || $title was transcluded from namespace N) { // render } else { // display an error message }

Is this doable? Thanks, DanB