I'm developing a XULRunner application that's got a python backbone, and
part of that backbone is ideally using python itself to expose scriptability
to the users.  I have a number of features on the "python side" of the world
that need to be scripted, but would also like access to my user interface
from the scripting language.

Imagine an MVC sort of design where I would like my view (all done in XUL
and web technologies) to be updated by my model and controller (python
backbone)  Essentially, I'd like to expose some of my user interface
functions (displayThis(), changeTheColorOfThat()) as methods of a "user
interface object" that's in the local namespace of the users scripting
environment.  I've written an nsIPyShell component that lets the user pass
commands and code blocks to a persistent python environment, but haven't
figured how to expose functions of the calling environment to that
namespace. (presumably via an XPCOM object of some variety)  I guess the
concept I'm shooting for is a "bidirectional" relationship, where an XPCOM
object can exist as a client and server at the same time (both the python
code and javascript code can share the same object)

I know this is a broad question... I'm not looking for a design solution,
but a point in the right direciton or a nod that this is even feasible... it
seems like an interprocess communication nightmare, and I wouldn't be
surprised by a response to the effect of "XPCOM/PyXPCOM doesn't do that."

Thoughts?

-R

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"The Hitchhikers Guide to the Galaxy"