It is a function of component to render itself. prependJavascript is a
method of ajax request target that evaluates javascript before
component is replaced. Those are two different things.
On 4/14/07, Alexei Sokolov <[EMAIL PROTECTED]> wrote:
> Here is a question: where should I put prependJavascript("whatever") ? in
> onSomething(AjaxRequestTarget target) method of say AjaxLink? why? isn't is
> a function of a component itself to render itself?
>
> Alex
>
>
> On 4/13/07, Matej Knopp <[EMAIL PROTECTED]> wrote:
> >
> > First you should realize that wicket is not about javascript
> > components. Wicket is about serverside components that can be
> > partially updated using ajax.
> >
> > However, that doesn't mean that "javacript components" are not
> > possible. But to implement something like that you probably need a bit
> > deeper knowledge of wicket works.
> >
> > If I understand correctly you want a listview that can add elements
> > without refreshing the whole component? This is not a trivial thing to
> > do, but certainly it's possible to accomplish.
> >
> > First, I wouldn't use ListView for this. I suggest you looking at how
> > RepeatingView works. You can either use it as base class or roll your
> > own repeater that suits your needs (children identity, ids, etc.).
> >
> > To ajax-update element that is not yet in page markup (newly added
> > list element) i suggest creating dummy DOM element in
> > AjaxRequestTarget.prependJavascript that is on desired
> position within
> > list parent and has proper id. You can then add the new component to
> > AjaxRequestTarget and it will be shown.
> >
> > -Matej
> >
> > On 4/13/07, Alexei Sokolov <[EMAIL PROTECTED]> wrote:
> > > This discussion is going nowhere.
> > >
> > > Adding <li> tag is not browser safe? First, it is not true; second -
> it's
> > > not the point. Let's say i want to call 'addNewItemToMyList()' function
> on
> > > the client instead. How should I do this so that my component is
> *reusable*
> > > in both cases - when I update it from ajax call or using regular page
> > > update. Behavior seems like a good fit, but it is not possible to remove
> a
> > > behavior from the component, so one time use behaviors are not possible.
> > > Here is how it might work: you have a behavior that generates whatever
> you
> > > want when component is added to ajaxrequesttarget, sometimes overriding
> > > markup generated by the component. This behavior is added by the
> component
> > > when you call certain component methods (like itemAdded()) and should
> remove
> > > itself from the component after request processing is done. This way you
> can
> > > customize output of ajaxrequesttarget.add(component). Also, at the
> moment
> > > javascript files (and other resources) are nicely packages, but there
> are no
> > > mechanism for javascript namespaces (i'd like to see all
> component-related
> > > javascript to reside in its own private namespace on the client, so
> there
> > > are no conflicts).
> > >
> > > I have a feeling that wicket is not javascript-friendly.
> AjaxRequestTarget
> > > seems to be taconite limited edition (tm) (see
> > > http://taconite.sourceforge.net/), and it is not clear
> to
> > > me how to create reusable ajax/javascript widgets using wicket. I hope
> it is
> > > possible, but not very well documented.
> > >
> > >
> > > Alex
> > >
> > > On 4/13/07, Korbinian Bachl <[EMAIL PROTECTED]> wrote:
> > > >
> > > >
> > > > from the wiki:
> > > >
> > > > "
> > > >
> > > > What you typically want to do is to redraw the complete <ul></ul>
> > > > part, because most browsers really don't appreciate when you replace
> > > > parts of a tag, especially when you are working with a <table>.
> > > >
> > > > "
> > > > just adding a line <li> there with JS isnt browsersafe - you can
> however
> > > still do it if you provide a own ListView implementation.
> > > >
> > > >
> > > > ________________________________
> > > Von: [EMAIL PROTECTED]
> > > [mailto: [EMAIL PROTECTED] Im
> > > Auftrag von Alexei Sokolov
> > > > Gesendet: Freitag, 13. April 2007 18:14
> > > > An: [EMAIL PROTECTED]
> > > > Betreff: Re: [Wicket-user] ajax / javascript widgets in wicket
> > > >
> > > >
> > > >
> > > > That solution will replace <ul> element and all of its children, which
> is
> > > not what I want.
> > > >
> > > > I need something like one-time-use javascript behavior, which can be
> > > attached to a component and then discarded after first rendering.
> > > >
> > > > Alex
> > > >
> > > >
> > > > On 4/13/07, Korbinian Bachl <[EMAIL PROTECTED]> wrote:
> > > > >
> > > > >
> > > > > We had this question 2 days ago, solution is in wiki:
> > > > >
> > > > >
> > >
> http://cwiki.apache.org/WICKET/how-to-repaint-a-listview-via-ajax.html
> > > > >
> > > > > the List actions itself like add and delete are part of List and you
> > > just would have to ListView.setList(yourListInHere) prior to repainting
> the
> > > markupcontainer with ajax.
> > > > >
> > > > > Regards
> > > > >
> > > > >
> > > > >
> > > > > ________________________________
> > > Von: [EMAIL PROTECTED]
> > > [mailto:[EMAIL PROTECTED] Im
> > > Auftrag von Alexei Sokolov
> > > > > Gesendet: Freitag, 13. April 2007 00:41
> > > > > An: [EMAIL PROTECTED]
> > > > > Betreff: [Wicket-user] ajax / javascript widgets in wicket
> > > > >
> > > > >
> > > > >
> > > > > Hello guys,
> > > > >
> > > > > I have a question about designing ajax/javascript widgets using
> wicket.
> > > Here is my problem:
> > > > >
> > > > > I have a form, which I submit using ajax submit button and I have a
> list
> > > view like this:
> > > > >
> > > > > <ul>
> > > > > <li wicket:id="item">blah</li>
> > > > > </ul>
> > > > >
> > > > >
> > > > > What I want to do is:
> > > > > - add a new <li> element to the list (but don't change other DOM
> nodes
> > > in the document)
> > > > > - call a javascript function to apply some visual effects to the
> item
> > > > >
> > > > > I want a similar method for removing items from the list, updating
> > > items, etc.
> > > > >
> > > > > How do I design such widget?
> > > > >
> > > > > Thank you,
> > > > > Alex
> > > > >
> > > > >
> > > > >
> > >
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