Thanks Igor !
Just for the record: it should be "return false;" otherwise the browser
makes a request to <a>'s href (i.e. a non-Ajax call).
Additionally the same effect/code could be added with less code with
AttributePrepender (there is no such class in Wicket for now).
deleteLink.add(new AttributePrepender("onclick", new Model("if (!
confirm('Are you sure?')) { return false; }"), " "));
AttributePrepender is a modified version of AttributeAppender.
I think it is useful for other cases too.
For example when you want to prepend element's class:
<span class="newClass oldClass">...</span>
AFAIK if newClass and oldClass have same properties then the first wins
(i.e. the ones defined in newClass will be taken into account).
Is it a good idea to add AttributePrepender in Wicket?
Martin
On Tue, 2008-02-26 at 10:21 -0800, Igor Vaynberg wrote:
> you can use an early exit instead
>
> if (!confirm('foo')) return;
>
> -igor
>
>
> On Tue, Feb 26, 2008 at 9:20 AM, Martin Grigorov
> <[EMAIL PROTECTED]> wrote:
> > Hi,
> >
> > I want to decorate AjaxLink with custom JavaScript:
> >
> > @Override
> > protected IAjaxCallDecorator getAjaxCallDecorator() {
> > return new AjaxCallDecorator() {
> > @Override
> > public CharSequence decorateScript(final
> > CharSequence script) {
> > return "if (confirm('Are you sure?')) {" +
> > script + " } ";
> > }
> > };
> > }
> >
> > But Ajax(Fallback)Link has a AjaxEventBehavior("onclick") that decorates
> > my AjaxCallDecorator with CancelEventIfNoAjaxDecorator...
> >
> > So the final result is something like:
> > <a id="deleteSynonymExpressionLink11" onclick="if (confirm('Are you
> > sure?')) {var
> >
> > wcall=wicketAjaxGet('../?wicket:interface=:0:synonymsForm:deleteSynonymExpressionLink::IBehaviorListener:0:1',null,null,
> > function() {return Wicket.$('deleteSynonymExpressionLink11') !=
> > null;}.bind(this)); } return !wcall;"
> > href="../?wicket:interface=:0:synonymsForm:deleteSynonymExpressionLink::ILinkListener::">Delete</a>
> >
> >
> > The problem is in " return !wcall" that is appended at the end by
> > CancelEventIfNoAjaxDecorator.postDecorateScript()
> >
> > What is the best way to do such kind of functionality ?
> >
> >
> > Regards
> > Martin
> >
> >
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