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From Glenn Golden <ggol...@umich.edu>
Subject RE: panels in portlets conflict with Maximize
Date Mon, 06 May 2002 18:42:48 GMT

What does it mean to have a "js_peid" parameter in the request?  Is this a
request "For" the portlet element?  No. It's still a jetspeed request, but
the "js_peid" is a standard way that many actions (etc) will look for
information identifying which portlet they should act upon (Maximize,
Restore, etc).

So, having a js_peid in the request should *not* cancle out the maximize

That leaved us only detection of the "template" in the request - if a
template is specifically requested, we will use it, and not add one (such as
to handl Maxmize).

We need to make sure that when we form a url, we don't put in the template
if we don't have to.  We should never see "template/home", as this is the

I'm off to try this one out...

- Glenn
Glenn R. Golden, Systems Research Programmer
University of Michigan School of Information
ggolden@umich.edu               734-615-1419

> -----Original Message-----
> From: Glenn Golden [mailto:ggolden@umich.edu] 
> Sent: Monday, May 06, 2002 1:17 PM
> To: Jetspeed-Dev (jetspeed-dev@jakarta.apache.org)
> Subject: panels in portlets conflict with Maximize
> A "panel", let us accept as a definition for now, is a 
> independently updatable area of a portlet's display.  We can 
> implement this by making the main portlet spit out iframes 
> for each panel section, mixed with any other HTML we want for 
> the portlet.
> The "src=" for the panel iframe is a request back to Jetspeed 
> to render a sub-section of the portlet.  This subsection  
> must be portlet (sub-) content only, no control, no page 
> layout.  So, the request needs to identify the
> following:
> js_peid/<id> - to id the portlet involved (used by the 
> content.vm templates) panel/<panel id> - to tell the portlet 
> which sub-section to display (used by the portlets) 
> template/content - to tell jetspeed to do some special 
> formatting (this is our new "content" templates)
> The panel names can be whatever the portlet wants them to be.
> So, for example, we might have this:
> http://chefproject.org/jetspeed/portal/js_peid/304/panel/List/
> template/conte
> nt
> This works just fine... Until we maximize this portlet.
> The way Maximize.java "works", along with the 
> JetspeedSessionValidator, is to store the js_peid in the 
> user's session's get/setTemp() as "js_peid", and if that 
> value is present when any request comes in from that user / 
> session, to change to the Maximize template.
> Consider what we need when we maximize a  "paneled" portlet.  
> The first request, for the entire portlet, needs to do the 
> standard maximize thing. The subsequent requests for each 
> iframe need to be processed without any modifications for maximize.
> What is happening now is that the maximize template is used 
> instad of the "content" template as requested.  The result is 
> we get each panel of the maximized portlet, as expected, but 
> each panel has the entire jetspeed screen navigation and 
> control, which is not what we want.
> So...
> I don't like how maximize works, anyway, and want to change 
> it to use the new StateManager, and consider the maximized 
> state as part of the portal page's session state for this user.
> But this won't help here, because what we really need is to 
> change JetspeedSessionValidator.  It must recognize when the 
> page is set to maximize something, and modify the request for 
> only the page - level requests, not the iframe - panel level requests.
> There are two situations: the first time maximize is invoked 
> (in which case the Maximize action is called), and subsequent 
> requests for the page (in which case no maximize action is 
> called, just the standard page request).
> In the cases where action=Maximize is in the request, the 
> Maximize action can take care of things.
> In the normal URL to the page case, JetspeedSessionValidator 
> needs to distinguish between the URL to the page and those to 
> a portlet.
> I propose that if JetspeedSessionValidator sees the "js_peid" 
> in the request, then it can assume it is a request to a 
> portal element, not the entire page.  Only when this is 
> absent will it change the request to use the "maximize" template.
> We can also look for an explicit "template" in the request, 
> and leave these alone as well.
> I'll be testing this today and seeing how it works... Please, comment!
> Thanks.
> - Glenn
> --------------------------------------------
> Glenn R. Golden, Systems Research Programmer
> University of Michigan School of Information
> ggolden@umich.edu               734-615-1419
> --------------------------------------------
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