Hi Peter,
Looking at the code I think you'll need to touch wicket-autocomplete.js.
Copy it to your project and override
org.apache.wicket.extensions.ajax.markup.html.autocomplete.AutoCompleteBehavior#renderHead(IHeaderResponse)
so that it loads your .js file.
Then make
org.apache.wicket.extensions.ajax.markup.html.autocomplete.AutoCompleteTextField.newAutoCompleteBehavior(IAutoCompleteRenderer<T>,
AutoCompleteSettings) return your custom AutoCompleteBehavior.
In the .js itself you'll need to touch "function setSelected(newSelected)"
at line 212 (1.4-SNAPSHOT). Each time this function is called you'll have to
make your Ajax call.
Good luck!
On Thu, Sep 9, 2010 at 1:07 PM, Peter Karich <peat...@yahoo.de> wrote:
> Hi Pieter,
>
> thanks for your quick response! And sorry, I didn't mention that I am using
>
> org.apache.wicket.extensions.ajax.markup.html.autocomplete.AutoCompleteTextField
> from wicket extensions. Or did you have another autocomplete component
> in mind that I am not aware of?
>
> Nevertheless I tried the AjaxFormComponentUpdatingBehavior which has the
> unwanted side effect that other values will be submitted too.
> Then I tried with
> autoCompleteField.add(new OnChangeAjaxBehavior() {
> @Override
> protected void onUpdate(AjaxRequestTarget target) {
> // sout here
> });
>
> But this will fire only every time I change the textfield value, not the
> selection of the suggestions :-(
>
> Regards,
> Peter.
>
> > add AjaxFormComponentUpdatingBehavior to your dropdownChoice.
> >
> > new AjaxFormComponentUpdatingBehavior("onchange") {
> > @Override
> > protected void onUpdate(AjaxRequestTarget target) {
> > //do the needed stuff here...
> > }
> > })
> >
> > The onUpdate() will be triggered when the selection changes, however the
> > behavor will be different if you do this with mous or keys (and even from
> > browser to brower if I'm not mistaking....)
> > Anyhow, with FireFow it is a follows:
> >
> > with mouse: onUpdate(..) is fired from the moment you change the
> selection.
> > with keys: onUpdate(..) is fired from the moment you change the selection
> > AND the component loses focus (by pressing tab for example) or the user
> > presses ENTER
> >
> >
> > Hope this helps.
> >
> >
> > Pieter
> >
> > On Thu, Sep 9, 2010 at 12:00 PM, Peter Karich <peat...@yahoo.de> wrote:
> >
> >
> >> Hi,
> >>
> >> I would like to fire an ajax event every time the user changes the
> >> selection of the choices
> >> e.g. he switches from 'wiki' to 'wicket' with keys or mouse
> >>
> >> Which function is necessary to fire such an event on the client side?
> >> I never did sth. similar to this and tried (without success + a long
> >> time) to customize wicket-autocomplete.js according to some hints [1] .
> >> And how can I add a behaviour on the server side which listens to this
> >> custom event? Any hints?
> >>
> >> Regards,
> >> Peter.
> >>
> >> [1]
> >>
> >>
> http://day-to-day-stuff.blogspot.com/2006/10/wicket-autocompletion-improvements.html
> >>
> >>
> http://karthikg.wordpress.com/2008/01/24/developing-a-custom-apache-wicket-component/
> >>
> >>
> http://ptrthomas.wordpress.com/2009/08/12/wicket-tutorial-yui-autocomplete-using-json-and-ajax/
> >>
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> >>
> >>
> >
> >
>
>
> --
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>
>
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