Linking undo history between multiple GtkSourceViews

I have an application which contains several GtkSourceView widgets. The main interface is a sheet containing multiple "cells" - each a GtkSourceView. GtkSourceView has built-in support for undo开发者_Go百科, but each widget has its own "undo stack." I'd like to have the same undo stack across the entire sheet.

For example: Say the last edit was made in SourceView A and the second to last edit was in SourceView B. Regardless of which SourceView has the focus, the first press Ctrl-Z should revert the change in A, and the second press should revert the change in B.

Is there a way I can accomplish this while still keeping multiple SourceView widgets, or am I better off trying to implement this type of undo functionality myself?

Note: I think it'd be too clunky to try to have the entire sheet inside a single SourceView. Also, I'm using Python.

Yes, bind the Ctrl-Z hotkey to your own Undo menu item, in which you keep track of the order in which the sourceviews were changed, and call the undo method on the appropriate sourceview.