[pde-dev] Setting a listener on the Package Explorer?

[Mike Summers <Mike@xxxxxxxxxxxxxx>]

I'm writing a plugin that has a view that would like to be notified when 
the selection in the Package Explorer changes.

After a lot of hunting about I came-up with this:

       PackageExplorerPart pep = 
PackageExplorerPart.getFromActivePerspective();
       TreeViewer tv = pep.getTreeViewer();
       tv.addSelectionChangedListener(this);

Is this the correct/accepted way to do this sort of thing?

Given the degree of difficulty figuring this out, and having to peek 
into internal classes, I'm wondering if I'm not on the wrong track here.

Suggestions/corrections are appreciated.

Thanks-- Mike