[Seaside] Gardner, SmallWiki, Swiki, or?

Lukas Renggli renggli at student.unibe.ch
Wed Nov 19 08:24:05 CET 2003

> the newer parser is pretty trivial work).  It'll probably be easy to 
> migrate a wiki back and forth between Gardner and SmallWiki since I 
> think they use the same DOM in addition to the parser.

Exactly, SmallWiki is providing basically the same protocol for HTML 
generation. However there are two things:

- Expressions like "html attributes align: #middle" are not supported 
yet. You still have to do it the old-fashioned way "html attributeAt: 
#align put: #middle". If someone wants that, it could be changed 

- The callback-mechanism of SmallWiki is somehow different, as there is 
no state in the components: therefor I have to pass into the 
block/message some more information than just the current value. 
Basically you register your callback either using a symbol or a block:

                       (1)       (2)      (3)

	[ :action :value :mime | self foo ...
         (1)     (2)    (3)    (4)

(1) points to the action where the callback is evaluated
(2) points to the value of the (input-)callback (this is what you get 
from Seaside)
(3) points to the mime-code of the (input-)callback
(4) points to the action where the callback had been defined

If your SmallWiki block/message does not take all the arguments, they 
are simply not given when evaluating.


Lukas Renggli

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