On Tue, Feb 3, 2015 at 11:53 PM, Chris <chris...@gmx.at> wrote:

> Hi Martin,
>
> thanks for your reply, I understand. Here are some more details:
>
> <marker> is a WebmarkupContainer in a page that represents a rectangle.
>
> When the user clicks a specific icon (see below), the CSS class „marker“
> is added to the marker and the page is reloaded so that the marker-CSS is
> executed one time (highlighting effect).
> However, after that event, the CSS class should be removed so that the
> effect is not shown anymore, e.g., when the user simply loads the page.
> Any ideas how to implement this feature?
>
> final WebMarkupContainer icon = new WebMarkupContainer(„icon");
> icon.setOutputMarkupId(true);
> icon.add(new AjaxEventBehavior("onclick") {
>     protected void onEvent(AjaxRequestTarget target) {
>         marker.add(AttributeModifier.append("class", "marker"));
>

replace with:

marker.add(new AttributeAppender("class", "marker") {
  @Override boolean isTemporary(Component c) {return true;}
})


>         target.add(getPage());
>
>     }
> });
> Thanks!
>
>
> > Am 03.02.2015 um 22:41 schrieb Martin Grigorov <mgrigo...@apache.org>:
> >
> > Hi,
> >
> > Please try to explain the idea again.
> > There is no such thing like CSS event. There is JS event.
> > Does the button submit a form ? Because you say it reloads the page ...
> > Why do you think the event is fired more than once ?
> >
> > Martin Grigorov
> > Wicket Training and Consulting
> > https://twitter.com/mtgrigorov
> >
> > On Tue, Feb 3, 2015 at 11:30 PM, Chris <chris...@gmx.at> wrote:
> >
> >> Hi guys,
> >>
> >> I would like to control a DIV element when clicking on a button, so that
> >> it sort of reacts to this event by „blinking“ for a short time.
> >> Currently, when clicking the button, a CSS attribute is added to the
> DIV’s
> >> class and the page is reloaded so that this event is triggered.
> >> However, the event should fire only once so I would therefore need to
> >> delete the attribute after that.
> >>
> >> Is there a more elegant solution so that the „CSS event“ is fired once
> >> when clicking the button?
> >>
> >> Thanks,
> >> Chris
> >>
> >>
> >>
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>
>

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