Thanks -- between this and AjaxTags for JSP, there is something of a
consensus on script.aculo.us -- I'd passed over it at first since it
looked infernally complicated but on second glance it's no worse than
YUI, and perhaps more flexible. It certainly has a different idea of
AJAX data, it can apparently work from an XHTML fragment.
Thanks also to George, but since this is also for an authority-control
prototype I'm hoping to use something already supported and maintained
for the popular browser platforms, so that makes a homebrew solution
less desireable.
It is actually not too difficult to produce the AJAX responses through
a special Cocoon pipeline. I wrote a simple generator that emits SAX
events and added a pipline that essentially leaves it alone; might be
easier than adding a servlet. I'll have that in the prototype. This
way, users of other AJAX libraries can just add transformation steps
to the pipeline to get the XML schema they need.
The XHTML-XHTML translation is a neat trick. For the prototype I'm
working with a slightly extended DRI (to add metadata authority values
since they have to get pre-loaded into forms for the round trip), so
I'll stick with DRI-XHTML for now.
OBTW, I did notice the Cocoon Forms stuff but figured since the DRI/
Wing architecture sidesteps it completely, it would not be productive
to try to use it.
thanks,
-- Larry
On Jun 4, 2009, at 12:27 PM, Tim Donohue wrote:
At Illinois, we are using Scriptaculous (http://script.aculo.us/)
with the XMLUI to perform autocomplete on our Subject, Publisher and
Author fields. (For Author, instead of having separate lastname and
firstname fields, we combine it all in one field which expects
'last, first m' format).
We actually add in the necessary Javascript code for each of these
fields in our Theme by using an XSL which transforms XHTML - XHTML.
So, we have our theme's sitemap.xmap setup to do the following:
(1) Run through our normal DRI - XHTML conversion via XSLT
(2) If the path matches */*/*/submit/*.continue (i.e. in Submission
process), run the resulting XHTML through another XSLT to add in the
autocomplete javascript for the necessary form fields.
On the server side of things, we did have to create a custom Java
Servlet (which we registered in the web.xml alongside Cocoon), to
process those AJAX requests and return the properly formatted
results. So, essentially, our autocomplete functionality is running
*outside* of Cocoon.
There might be an easier way to do all of this...but, this is
essentially what we came up with as a relatively quick solution. If
it is of interest, I am willing to share the code we've written for
this.
- Tim
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