Custom Window State Struts2 Portlet

[Ricardo Jorge]

Hello.

I'm using Liferay portal to develop a portlet using struts 2. I need to use
a custom Liferay Window State called exclusive to generate a URL. This
allows me to make AJAX calls and return only the result generated by the
action. I have added the <custom-window-state> tag to my portlet.xml

I tried

<s:url windowState="exclusive" action="moreinformation">
          <s:param name="id" value="resourceId" />
</s:url>

but the windowState in the URL always ends up being 'normal' (I presume this
is the default). I did a quick look through the Struts2 code but I couldn't
find the place where this default value was processed (I will look in more
detail later).

I also tried

<portlet:actionURL windowState="exclusive">
          <portlet:param name="struts.portlet.action"
value="/gdocs/moreinformation" />
          <portlet:param name="id" value="---------------------" />
</portlet:actionURL>

and it works but I need to add a dynamic parameter (id) from the Value Stack
(I'm using s:iterator) but I have no idea how to put it there. <s:property>
doesn't work, using %{} or ${} doesn't work either.

Finally, I solved this problem the following way

<portlet:actionURL windowState="exclusive">
                  <portlet:param name="struts.portlet.action"
value="/gdocs/moreinformation" />
</portlet:actionURL>&amp;<portlet:namespace />id=<s:property
value="resourceId" />

but it feels kind of hackish and I think that there has to be a better way.

Any suggestions?

Best Regards,
Ricardo