[jsr-314-open] Ajax: Include View State For Forms That Are Partial Render Targets

[Dan Allen]

On Fri, Jun 19, 2009 at 3:07 PM, Roger Kitain <Roger.Kitain at sun.com> wrote:

> Background:
>
> It used to be that when processing an Ajax response on the client, all
> forms in the view
> would get updated with the view state from the server (which had it's own
> set of portlet
> related issues).  Before the specification went final it was decided that
> only the submitting form should have it's view state updated from the
> server.
>
> Problem:
>
> Consider the case where there are multiple forms in the view, and one of
> the forms
> is a partial render target.  So here, "form1" is an Ajax render target:
>
> <h:form id="form1">
>  <h:commandButton value="Should be postback" id="button1"/>
> </h:form>
>
> <h:form id="form2">
>  <h:commandButton value="Rerender form1" id="button2">
>     <f:ajax render=":form1"/>
>  </h:commandButton>
> </h:form>
>
> In this scenario, "form1" is missing the view state identifier causing a
> "non postback" when "button1" is clicked.
>
> -----------------------
>
> I think this could get by as an errata for the MR, as we would need to
> include additional
> spec language.


+1. We need to be very sensitive about these "ghost clicks" because that
issue has really spurned JSF users in the past.

-Dan

-- 
Dan Allen
Senior Software Engineer, Red Hat | Author of Seam in Action

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