So if I understand correctly, from my little python environment, there is
essentially *no* way of communicating data back to the javascript
environment that created it, other than 1) returning a value, say from my
pyshell.executePythonCode() function, or 2) modifying attributes of the
pyshell object that can later be read back from  (ie: executing code that
modifies pyshell.stdOut, and exposing that attribute through my xpcom
interface so that it can be probed by my javascript code.)

I effectively cannot in any way set up javascript functions or members that
can be invoked or accessed from my insulated python exec() environment.

That sucks, but I am much further along in my understanding of this stuff!
Thanks!

-R

On 7/11/07, Mark Hammond <mhammond@[...].au>  wrote:
> 
>  > Is there a mechanism by which I can selectively expose to him (via
>  > the specification of specially crafted locals or globals to exec())
>  > a means of accessing functionality in that parent javascript
>  > environment.  An example might be, I'd like to allow my user code
>  > to exercise the javascript alert() function, or say, change the
>  > text of a button in my user interface, or change the window title,
>  etc...
> 
>  Not currently, no.  Although if the 'document' and 'window' objects are
>  available, many interesting things can still be done in Python via XPCOM.
>  Non-XPCOM variables can't be referenced, and even for the XPCOM
>  interfaces,
>  some functions are implemented in a way that only make sense for JS, and
>  can't be called by Python.  IIRC, alert() is one example of that.
> 
>  The work I recently did on 'nsdom' gets us a little closer to that goal -
>  you can use Python directly in XUL - but I don't think that will appear in
>  firefox releases for some time.
> 
>  Mark
> 
> 


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Ryan Sturmer
ryansturmer@[...].com
http://www.gogglemarks.net/