[Pangloss] Fwd: [RFC] OpenFrame-WebApp

[Steve Purkis]

FYI:
All comments appreciated - if you're interested you should subscribe to 
the OpenFrame list.

Jean-Michel: I've decided to stick with error flags for now, though 
your idea of errors that can localize themselves is interesting.  I'm 
trying to leave things open so we won't be tied to it.

PS: see how I'm not tying the developer into using sessions Chris? ;-)

-Steve

Begin forwarded message:

> From: Steve Purkis <spurkis at mkdoc.com>
> Date: Thu Apr 10, 2003  11:54:17  am Europe/London
> To: OpenFrame List <openframe at astray.com>
> Subject: [RFC] OpenFrame-WebApp
>
> Hiya,
>
> I've chucked together some ideas for a project called OpenFrame-WebApp 
> (for wont of a better name :).  It could potentially be split up into 
> a bunch of separate packages, but I'm feeling particularly lazy at the 
> moment.  It builds on the conversation I've had w/James this past > week.
>
> In the spirit of OpenFrame, WebApp would be a toolkit similar to the 
> AppKit.  My goals were to come up with re-usable segments that were 
> easily extended.  I've listed one method of error handling below (with 
> flags), but have tried not to tie the developer to it.
>
> So far, the list of segments I've got in my head are:
>
> 	session loader(s)	(ala AppKit + cookie, url, query param)
> 	template loader		(loads any template in the store)
> 	  *	w/session		(gets session from store & adds to template vars)
> 	  *	w/error flags	(gets error flags from store & adds to template 
> vars)
>
> * these might serve better as regular segments that do
>   the same thing, but leave template processing up to
>   the template loader.
>
> The supporting objects I can think of are:
>
> 	user		(abstract, username only - meant to be sub-classed)
> 	session		(data object, ala AppKit)
> 	error flags	(data object, sorry james! :)
> 	template	(abstract, must know how to process themselves)
> 		tt2		(ala AppKit)
> 		petal
> 		...		(others should be easy)
> 	template factory	(set template type and put it in the store)
>
> Some sample code for some of the template stuff is attached...  I 
> started by refactoring the AppKit's TT2 segment.  Haven't done much 
> more than that yet.  Comments quite welcome.
>
> -Steve
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