Hi Sven, Thanks for double-checking!
The weird thing is that I thought this solved my problem, but when I tried
to create the quickstart; I couldn't reproduce it either :o. I seem to have
been mistakenly assuming it was this piece of code that fixed the problem.
So I tried to build it more towards our application and I saw a
<wicket:enclosure> that causes this behavior (the isVisibleInHierarchy() is
not working there).
I attached the quickstart for those who want to experiment with it.
-Rob
On Mon, Jan 20, 2020 at 7:17 PM Sven Meier <s...@meiers.net> wrote:
> Hi Rob,
>
> actually I wasn't able to reproduce the problem on a second try (not
> sure what I tested before).
>
> Can you create a a quickstart showing the problem?
>
> Sven
>
> On 20.01.20 13:18, Sven Meier wrote:
> > Hi Rob,
> >
> >> the 'correct' way to solve this?
> >
> > the component is explicitly added to the Ajax request for an update,
> > but decides to hide itself in onConfigure().
> > Perfectly valid usecase IMHO, but the head will be rendered
> > nevertheless :/
> >
> > Just tested with 7.x, 8.x and master, this seems to have been that way
> > forever.
> > But maybe we can improve that in Wicket core?
> >
> > Sven
> >
> >
> > On 20.01.20 10:36, Rob Audenaerde wrote:
> >> Hi all,
> >>
> >> I recently got some javascript errors that came from behaviors of
> >> components that where triggered to be visible or invisible in the dom
> >> (using onConfigure()) in an ajax request.
> >>
> >> Typically something like:
> >>
> >> Wicket.Ajax: Cannot bind a listener for event "change" on element
> >> "format1dd" because the element is not in the DOM
> >>
> >> I solve this by adding an isVisibleInHierarchy() check in the
> >> renderHead()
> >> like this:
> >>
> >> @Override
> >>
> >> public void renderHead(final Component component, final IHeaderResponse
> >> response) {
> >> if (component.isVisibleInHierarchy()) {
> >> super.renderHead(component, response);
> >> }
> >> }
> >>
> >> I was wondering if this is the 'correct' way to solve this? Or am I
> >> doing
> >> something wrong?
> >>
> >> Please advise :)
> >>
> >> -Rob
> >>
> >
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