Thanks guys for your feedback
Implementing custom IHeaderResponseDecorator for css resources works for me.
Then I noticed that both css and js resources are loaded in the header. Is
that expected behaviour in Wicket 9.x? because in my previous
implementation in Wicket 7.x JS loaded in the footer which is expected.
How do I make the JS to be loaded in the footer to improve page loading
performance?
@Martin Grigorov somehow adding css resources into
getHeaderContributorListeners
doesn't work in my case.



*Thanks And RegardsSibi.ArunachalammCruncher*


On Wed, Sep 8, 2021 at 2:24 PM Martin Grigorov <[email protected]> wrote:

> Hi,
>
> Instead of dealing with response decorators you could
> use org.apache.wicket.markup.html.IHeaderContributor
>
> getHeaderContributorListeners().add( return response -> {
>         response.render(CssHeaderItem.forReference(css1));
>         response.render(CssHeaderItem.forReference(css2));
> })
>
> IHeaderResponseDecorator is more powerful. It should be used when you want
> to intercept all header contributions and add/modify/remove contributions.
>
> On Wed, Sep 8, 2021 at 6:47 AM Arunachalam Sibisakkaravarthi <
> [email protected]> wrote:
>
> > Hi guys,
> > I am doing Wicket migration from 7.x to 9.x
> > In Wicket7.x I add css resource as below, it was working
> >
> > getHeaderResponseDecorators().add(getHeaderResponseDecorator());
> >
> > private IHeaderResponseDecorator getHeaderResponseDecorator()
> > {
> >     return response -> {
> >         response.render(CssHeaderItem.forReference(css1));
> >
> >         response.render(CssHeaderItem.forReference(css2));
> >
> > return new JavaScriptFilteredIntoFooterHeaderResponse(response,
> "scripts");
> > };
> >
> > whereas the above one doesn't work in Wicket9.x
> > Is there any alternative to css and js in init() method of
> WebApplication?
> > so that css/js will be available to all components.
> >
> >
> >
> > *Thanks And RegardsSibi.ArunachalammCruncher*
> >
>

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