Your idea of using PostComponentOnBeforeRenderListener sounds good to
me, but I didn't understand exactly what you do with this kind of listener.
Once you have checked if component implements IMyPanel, I would call
Application.getHeaderContributorListenerCollection() and I would add a
header contributor which renders your JavaScript as I suggested in the
previous mail.
The code of you IComponentOnBeforeRenderListener should be something like:
.... implements IComponentOnBeforeRenderListener{
onBeforeRender(Component component) {
if(component instanceof IMyPanel)
Application.get().getHeaderContributorListenerCollection().add(new
IHeaderContributor(){
public void renderHead( IHeaderResponse
response)
{
response.renderOnLoadJavaScript("<...your JavaScript...>");
}
});
}
}
That's a a good idea but unfortunately my panels extend disjoint class
hierarchies and I can only group them using interfaces.
Any thoughts on how I can use Application listeners to accomplish this?
Thanks,
Alec
On Mon, Jan 23, 2012 at 3:41 AM, Andrea Del Bene<[email protected]> wrote:
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