[aida] Using WebComponent for input objects

nico petton.nicolas at gmail.com
Sun Jul 6 15:10:12 CEST 2008


Le dimanche 06 juillet 2008 à 03:22 -0400, Rob Rothwell a écrit :
> Hello...
> 
> I'm trying to get back to finishing WebRadioButtonGroup, and thought
> it would be best to create a WebComponent.  However, I can't seem to
> get any values back into my objects when I use it.  I am using
> Aida5.6-np58.
> 
> For example, I have a simple
> 
> 
> WebComponent subclass: #WebInputComponent
> instanceVariableNames: 'object aspect'
> classVariableNames: ''
> poolDictionaries: ''
> category: 'Aida-Components'
> 
> with accessors for object and aspect so I can pass them on to the
> underlying WebFormElement.
> 
> Then, as an example, try creating
> 
> WebInputComponent subclass: #WebTextComponent
> instanceVariableNames: ''
> classVariableNames: ''
> poolDictionaries: ''
> category: 'Aida-Components'
> 
> with
> 
> WebTextComponent>>#build
> |e|
> e := WebElement new.
> e addInputFieldAspect: self aspect for: self object size: 50.
> self add: e
> 
> and if you #add this component to an application, enter some text,
>  press a submit button, and inspect the "bound" object, it remains
> nil.
> 
> Any advice on using WebComponent(s) for this purpose?  I can make
> everything work fine by simply creating WebElement(s) instead of
> WebComponent(s), but then you lose the built-in #build functionality
> and have to resort to special constructors, etc...  It would be much
> more elegant to understand why WebComponents are not posting their
> changes to the model the way I am using them!
> 
Hi Rob,

can you give me your code so I can take a look? a .mcz or .st would be
fine.

> Also, what would be the best way to publish an individual component to
> be added to Aida by an end user?  Should it just go into a package
> that places the component in the Aida-Components category, or should
> it be a new category like Aida-Third Party Components to distinguish
> them from built-in components?
> 
There is a repository here : http://www.squeaksource.com/AidaContributed
If it's good and useful then it could be added to Aida later.

Cheers!

Nico
-- 
Nicolas Petton
http://nico.bioskop.fr
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