[pygtk] Access to the text entry in gtk.FileChoosers?

[Geoff Bache]

Hi all,

Using gtk.FileChooser, I was wondering a bit about why access is 
provided to changes within only some
of the widgets inside it. For example, there is the signal 
"current-folder-changed" that tells me if the user
changes folder, and the signal "selection-changed" if they select a file 
from the list. But there seems to be
no way of telling if they type something into the filename text entry at 
the top (for the _SAVE variety of FileChooser).

It seems odd to me that gtk.FileChooser isn't a "black box" in that some 
of its components are visible to the outside world,
but yet not all of them are exposed in this way. Why is this? Is there 
any workaround supposing I want to do this?

Regards,
Geoff Bache