Each component is unique in the hierarchy. The link listeners get a
session/page/version relative url that instructs Wicket to retrieve
the correct page/version from the pagemaps. This is the :0:1:2:3 part.
So it is possible to have a form that is a form submit listener, an
ILinkListener, or some other registered event.
The request parameters are available in the WebRequest, so you should
be able to get them. They just aren't passed on to the listener
interface directly.
This is one of the area's where Wicket wasn't designed for. It is
possible to accomplish, but not as elegantly as using components.
Martijn
On 3/16/07, Robert . <[EMAIL PROTECTED]> wrote:
> I tried to look at those listeners. If I understand correctly you always
> need to be a component to be a listener.
> Each listener interface must have 1 method with 0 parameters. So it means
> all state must be kept in the component.
> You cannot pass any parameters to it? So in the case of a PageLink you must
> know which page to render, before
> the link has been clicked?
>
> I'm just trying to sort things out in my head.
> I would like to know more about how Wicket knows which ILinkListener to call
> when a link is clicked. I found the apidocs
> to be rather abstract about listeners. It felt like you already had to know
> how they work before you can understand the docs.
>
> Please don't take any off this as criticism against Wicket. I'm sure it is a
> great project. And I will be using it in the future.
> I'm just not sure if I should convert this project from Tapestry to Wicket.
> I am beginning to think that it's not a good idea.
>
>
>
> On 3/15/07, Jonathan Locke <[EMAIL PROTECTED]> wrote:
> >
> >
> > yes. that and the ability to create new listeners. there is nothing
> > special about the listeners that wicket pre-registers to handle various
> > kinds of requests such as resource requests or link clicks (although you
> > should definitely prefer the already existing event listeners!). in fact,
> > below is the code in init that registers all the "service" listeners in
> > wicket
> > revealing that you can create your own if you're doing something special
> > that wicket does not (yet) support.
> >
> > /**
> > * @see wicket.IInitializer#init(wicket.Application)
> > */
> > public void init(Application application)
> > {
> > // Register listener interfaces explicitly (even though
> they implicitly
> > // register when loaded) because deserialization of an
> object that
> > // implements an interface does not load the interfaces it
> implements!
> > IBehaviorListener.INTERFACE.register ();
> >
> IUnversionedBehaviorListener.INTERFACE.register();
> > IFormSubmitListener.INTERFACE.register();
> > ILinkListener.INTERFACE.register();
> > IOnChangeListener.INTERFACE.register ();
> > IRedirectListener.INTERFACE.register();
> > IResourceListener.INTERFACE.register();
> > }
> >
> > public interface ILinkListener extends IRequestListener
> > {
> > /** Listener interface */
> > public static final RequestListenerInterface INTERFACE = new
> > RequestListenerInterface(
> > ILinkListener.class);
> >
> > /**
> > * Called when a link is clicked.
> > */
> > void onLinkClicked();
> > }
> >
> >
> > igor.vaynberg wrote:
> > >
> > > wicket's equivalent of a service is a shared resource. you can register
> > > your
> > > own shared resources through your webapplication subclass.
> > >
> > > as far as selecting pages via javascript:
> > >
> > > wicket doesnt really have a page service. urls for pages are resolved
> > > internally. if you want a stable entry point into the page then you
> should
> > > mount it, also via the webapplication subclass, and then the javascript
> > > can
> > > redirect to the mounted url.
> > >
> > > -igor
> > >
> > >
> > > On 3/15/07, Robert . < [EMAIL PROTECTED]> wrote:
> > >>
> > >> Hi,
> > >>
> > >> I have been examining how I can convert a web application product from
> > >> Tapestry 3 to Wicket, and trying to adapt
> > >> myself to the Wicket way of thinking about web flow.
> > >>
> > >> One part that I just can't seem to figure out from reading Pro Wicket
> and
> > >> browsing through the apidocs is how to
> > >> make something like Tapestry "services".
> > >>
> > >> For example I have an action service in Tapestry that let's me send an
> > >> action command, including additonal parameters,
> > >> to the service by using javascript. I have such a service for both
> normal
> > >> requests and XMLHTTP requests. But thinking
> > >> about this further makes me realize I don't even know how to make
> > >> something like a PageService where the page is determined by
> javascript.
> > >>
> > >> I feel like I am missing something.
> > >>
> > >> Robert
> > >>
> > >>
> > >>
> > >>
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> > --
> > View this message in context:
> http://www.nabble.com/Tapestry--%3E-Wicket-%7C-Action-Service-tf3408177.html#a9504695
> > Sent from the Wicket - User mailing list archive at Nabble.com.
> >
> >
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