Good stuff!

Saw that you are thinking of a user interface where the class hierarchy browser and file browser look the same. Perhaps the work I'm doing is of interest-

http://www.canis.uiuc.edu/~tyrrell/Oasis/Preview/preview.html

This is a boilerplate testbed. It's not meant to look pretty, it's just to get the underlying infrastructure worked out. This is not the only way this system could appear- in fact, the two views shown are both generic, independent of thier contents. The contents, not the views, determine the "application". This is one of about a dozen "applications" currently using various incarnations of this same infrastructure.

Les Tyrrell

tyrrell@canis.uiuc.edu