[Seaside] Stupid anchor question

[John Thornborrow]

For small items such as this (or perhaps an error on form validation or 
similar, or a toggle) I prefer to use a boolean instvar such as:

#initialize
   boolean _ false.
   ^super initialize

#renderContentOn: html
   html anchor
     callback: [boolean _ boolean not];
     with: [html text: 'toggle'].
   boolean ifTrue: [html div with: [html text: 'this is some text']]

Regards,
John.

www.pinesoft.co.uk

Philippe Marschall wrote:
> 2007/8/14, Leandro Pérez <lperez at lifia.info.unlp.edu.ar>:
>> Hello,
>> I want to do this: when clicking on an anchor, something else must be
>> displayed on a new page..just like simple html
>>
>> MyComponent>>renderContentOn: html
>> html anchor
>>     callback:[self renderSomethingElseOn:html];
>>     with:'go to somewhere else'
>>
>> MyComponent>>renderSomethingElseOn:html
>> html div with:'this is something else'
>>
>> and I always get this exception
>> Message not understood: #openTag:attributes:closed:
>>
>> I guess the whole idea might be wrong... is it?
> 
> Yes, you mix the callback and the rendering phase. In the callback
> phase your "actions" are executed, you can do no rendering there. Your
> html argument will be invalid.
> 
> The easiest way to make your example work is to create a new Component
> for 'this is something else' called SomethingElseComponent (or
> something else) the action triggered by the link would then do a
> #call: on this new component. This temporarily replaces MyComponent
> with SomethingElseComponent until you send #answer: in
> SomethingElseComponent.
> 
> MyComponent>>renderContentOn: html
>     html anchor
>         callback:[ self renderSomethingElse ];
>         with:'go to somewhere else'
> 
> MyComponent>>renderSomethingElse
>     self call: SomethingElseComponent new
> 
> SomethingElseComponent >> #renderContentOn: html
>     html div with:'this is something else'
> 
> Cheers
> Philippe
> 
>> Thanks!
>> --
>> View this message in context: http://www.nabble.com/Stupid-anchor-question-tf4267248.html#a12144350
>> Sent from the Squeak - Seaside mailing list archive at Nabble.com.
>>
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> 
> 
>  
> 
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