[Seaside] How can I invoke the callback of an anchor using jQuery?

[Jan van de Sandt]

Johan,

Thanks for the suggestion, I will try it out,

If I remember correctly the browser will not "follow" the url if the onClick
code returns false. In this case you could leave the callback in place. The
anchor would work in a browser without javascript and would use Ajax if
javascript was available.

Jan.

On Mon, Mar 14, 2011 at 12:17 PM, Johan Brichau <johan at inceptive.be> wrote:

> Jan,
>
> A callback will always trigger a full page rendering. The callback
> mechanism works with a url in the anchor and therefore the browser expects a
> complete html page as a response.
> Instead, try to do something along the lines of:
>
> html anchor
>        url: 'javascript:{}';
>        onClick: (html jQuery ajax script: [ :s |
>                        self doSomething;
>                          s << (s jQuery: 'mydiv')
>                                        html: [ :r | self renderMyDivOn: r ]
> ]) ;
>         with: 'doit'.
>
> Basically: include the action inside the ajax callback, right before
> invoking the rendering.
> If you want to separate the blocks, you will need to use a callback: [...];
> onComplete:[...] construction, I think.
> Overriding of the url has proven necessary to me to avoid default browser
> behavior.
>
> Johan
>
> On 14 Mar 2011, at 11:49, Jan van de Sandt wrote:
>
> > Hello,
> >
> > If I have an anchor with a callback:
> >
> > html anchor
> >    callback: [ self doSomething ] ;
> >    with: 'DoIt'.
> >
> > Now I want to use jQuery to update only part of the page instead of a
> full page reload:
> >
> > html anchor
> >    callback: [ self doSomething ] ;
> >    onChange: (html jQuery ajax script: [ :s |
> >       s << (s jQuery: 'mydiv')
> >          html: [ :r | self renderMyDivOn: r ] ]) ;
> >    with: 'DoIt'.
> >
> > How do I make sure that the callback is performed before the render
> method is executed? With form elements you can use serializeThis but I guess
> that doesn't work for anchor elements.
> >
> > Jan
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>
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