RFC: GUI state machine framework (Score 1)

I'm looking into designing/discovering a general framework+API in one or more languages/toolkits to implement complex graphical interfaces. All GUI code is a conglomeration of state machines and widgets, but how to organize those objects is left to the programmer. Swing has plenty of flexibility for example, but no guiding principle on which to build a multi-JFrame application - all of the published examples through you into a main method which points to a single hypothetical JFrame subclass or something. Anyway, language and toolkit aside, you are right on the money in terms of identifying a deficiency in tooling. If you'd like to start up a dialog on this issue, please let me know via e-mail at [e-mail]. This issue has been tackled for writing Perl/Java-CGI/JSP applications, via callback controllers and server mappings, but surprisingly, desktop app toolkits/gui libraries are behind the times in terms of frameworks, I feel.