We're making our application skinable, but I'm having some trouble getting
user specified css into the right place in the header. We're working in a
distributed environment, so instead of saving their css in the file system
we're putting it in our database, and in order to get the cascade to work
properly we need to add this css after all the others. Here's how I'm
adding it:
StandardPage.java
onInitialize()
//Add any override style
Tenant tenant = MyWebSession.get().getTenant();
Css css = cssRepository.GetStyleByTenant(tenant);
if(tenant.getBranding() && css != null) {
add(new Label("style", css.getStyle()));
}
}
StandardPage.html
<wicket:head>
<style type="text/css" wicket:id="style"></style>
</wicket:head>
-----------------------------------------
So the issue is that thet style tag comes before all my header
contributions. I've tried specifying a header response decorator like so:
Application.java
public static final String HEADER_FILTER_NAME = "myHeaderBucket";
init() {
super.init();
setHeaderResponseDecorator(new IHeaderResponseDecorator() {
HeaderResponseContainerFilteringHeaderResponse.IHeaderResponseFilter[]
filters = {new CssAcceptingHeaderResponseFilter(HEADER_FILTER_NAME)};
@Override
public IHeaderResponse decorate(IHeaderResponse response) {
return new
HeaderResponseContainerFilteringHeaderResponse(response, HEADER_FILTER_NAME,
filters);
}
});
}
StandardPage.html
<wicket:head>
<div wicket:id="myHeaderBucket"></div>
<style type="text/css" wicket:id="style"></style>
</wicket:head>
------------------------------
Unfortunately I'm getting this exception when I instantiate a page:
12:28:04,097 INFO [STDOUT] 2011-07-19 12:28:04.096 [http-127.0.0.1-8080-1]
[127.0.0.1] [T:2] [U:3 - joe_sharp]
[com.transverse.bleep.wicket.desktop.DesktopPage] ERROR
org.apache.wicket.RequestCycle 1529 - Exception in rendering component:
[MarkupContainer [Component id = headerBucket]]
org.apache.wicket.WicketRuntimeException: Exception in rendering component:
[MarkupContainer [Component id = headerBucket]]
at org.apache.wicket.Component.renderComponent(Component.java:2729)
~[wicket-1.4.17.jar:1.4.17]
at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1539)
~[wicket-1.4.17.jar:1.4.17]
at org.apache.wicket.Component.render(Component.java:2521)
~[wicket-1.4.17.jar:1.4.17]
...
Caused by: java.lang.RuntimeException: there was an error processing the
header response - you tried to render a bucket of response from
HeaderResponseContainerFilteringHeaderResponse, but it had not yet run and
been closed. this should occur when the header container that is standard
in wicket renders, so perhaps you have done something to keep that from
rendering?
at
org.apache.wicket.resource.filtering.HeaderResponseFilteredResponseContainer.onComponentTagBody(HeaderResponseFilteredResponseContainer.java:67)
~[wicket-1.4.17.jar:1.4.17]
at org.apache.wicket.Component.renderComponent(Component.java:2690)
~[wicket-1.4.17.jar:1.4.17]
... 81 common frames omitted
Any ideas on what I'm doing wrong? Is there an easier approach I can take?
Thanks,
Loren
