Hi,
Martin Grigorov writes:
>
> On Tue, May 31, 2022 at 6:50 AM Joachim Schrod <jsch...@acm.org> wrote:
> >
> > So I need to have the
> > following functionality for this button:
> > -- Before the submit, a target attribute "_blank" get's added to the
> > form.
> > -- The form is submittet, by this button. (I.e., its onSubmit() must
> > be called.)
> > -- Afterwards, the target attribute is deleted from the form.
> >
> > I'm looking for best practice to achieve that functionality with the
> > available Wicket API. I.e., I want to prepend and append Javascript to
> > the Wicket-supplied submit functionality of a button or ajax submit
> > action. I have looked at Javadoc and source code of the following
> > classes (and their superclasses) and didn't found any hook/method
> > where I can achieve my desired result:
> > -- AjaxRequestAttributes: No methods to prepend/append JS code.
>
> Actually this is the one you need ^^
> atrts.getAjaxCallListeners().add(new
> AjaxCallListener().onBefore("...").onComplete("..."));
>
> see also onBeforeSend() and onAfter()
Thanks a lot for this tip, it worked like a charm. I learned something
new about Wicket; that's always a good thing. :-)
When I did read "Listener" in the classe name, I associated it with
some callback or event hook on the server side -- seems, that I need
to pay more attention to the AJAX mechanisms, how they work.
Cheers,
Joachim
--
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Joachim Schrod, Roedermark, Germany
Email: jsch...@acm.org
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org
