DWR in Xforms

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Naman,

> I was wondering if anyone has successfully tried to implement DWR
> (Direct Web Remoting- A Reverse-Ajax implementation) in Xforms? I have
> written a test one and it seems to work fine in Firefox but as always,
> IE is having some problems with the Javascript. I was curious if anyone
> else has tried?

What would "implement DWR in XForms" mean exactly? In general, and also
in particular with Orbeon Forms?

-Erik

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Well it means basically to import the DWR java script files and use the
Reverse AJAX function calls in an Xforms xhtml file. I have successfully
done this and it works in Firefox but as always, in IE I get "Operation
Aborted". I even got a $70 IE debugging program but it did not help at
all :(


-----Original Message-----
From: Erik Bruchez [mailto:[hidden email]] On Behalf Of Erik Bruchez
Sent: Thursday, 5 July 2007 9:03 PM
To: [hidden email]
Subject: Re: [ops-users] DWR in Xforms

Naman,

> I was wondering if anyone has successfully tried to implement DWR
> (Direct Web Remoting- A Reverse-Ajax implementation) in Xforms? I have

> written a test one and it seems to work fine in Firefox but as always,

> IE is having some problems with the Javascript. I was curious if
anyone
> else has tried?

What would "implement DWR in XForms" mean exactly? In general, and also
in particular with Orbeon Forms?

-Erik

--
Orbeon Forms - Web Forms for the Enterprise Done the Right Way
http://www.orbeon.com/


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Naman,

On 7/5/07, Naman Joshi <[hidden email]> wrote:
> Well it means basically to import the DWR java script files and use the
> Reverse AJAX function calls in an Xforms xhtml file. I have successfully
> done this and it works in Firefox but as always, in IE I get "Operation
> Aborted". I even got a $70 IE debugging program but it did not help at
> all :(

Do you think this could be caused by some incompatibility between the
JavaScript used by Orbeon Forms and DWR? Does the JavaScript debugger
provide you with more detailed information on the error? Can you see
if it is happening in the Orbeon Forms JavaScript code, one of the
libraries used by Orbeon Forms, or DWR?

Alex
--
Orbeon Forms - Web 2.0 Forms, open-source, for the Enterprise
http://www.orbeon.com/



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Alex,

I had a play around and I implemented an example that can be found here:
http://today.java.net/pub/a/today/2007/03/22/developing-applications-usi
ng-reverse-ajax.html#resources, as an Xforms app. In Firefox it runs
fine but in IE I get:

Line 620
"document.body is null or not an object", this error is coming from a
DWR javascript file: engine.js.

I have posted a message on the DWR forum and am awaiting a reply. Any
ideas on your end?

Naman

-----Original Message-----
From: [hidden email] [mailto:[hidden email]] On Behalf Of
Alessandro Vernet
Sent: Sunday, 8 July 2007 6:27 PM
To: [hidden email]
Subject: Re: [ops-users] DWR in Xforms

Naman,

On 7/5/07, Naman Joshi <[hidden email]> wrote:
> Well it means basically to import the DWR java script files and use
the
> Reverse AJAX function calls in an Xforms xhtml file. I have
successfully
> done this and it works in Firefox but as always, in IE I get
"Operation
> Aborted". I even got a $70 IE debugging program but it did not help at
> all :(

Do you think this could be caused by some incompatibility between the
JavaScript used by Orbeon Forms and DWR? Does the JavaScript debugger
provide you with more detailed information on the error? Can you see
if it is happening in the Orbeon Forms JavaScript code, one of the
libraries used by Orbeon Forms, or DWR?

Alex
--
Orbeon Forms - Web 2.0 Forms, open-source, for the Enterprise
http://www.orbeon.com/


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On 7/10/07, Naman Joshi <[hidden email]> wrote:
> I had a play around and I implemented an example that can be found here:
> http://today.java.net/pub/a/today/2007/03/22/developing-applications-usi
> ng-reverse-ajax.html#resources, as an Xforms app. In Firefox it runs
> fine but in IE I get: [...]

Maybe you can try to set a breakpoint there with an IE debugger and
see what the value of "document" is when the error happens. But since
this is happening in the DWR code, you might get some better feedback
posting, like you did, on the DWR forums.

 Alex
--
Orbeon Forms - Web 2.0 Forms, open-source, for the Enterprise
http://www.orbeon.com/



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I got a reply from Joe Walker himself on the DWR forums and he says:

"DWR does use document.body without checking for its existence, and I
can't think why we should need to check. I have no idea what Orbeon is
doing however looking at their samples I did see a few lines of code
like this:
if(document&&document.body)

Not only do they not trust document.body, but also not document!

Is this Orbeon doing something wacky, or is it logical? I think the best
place to ask is the Orbeon forums, because it seems reasonable to me to
assume document.body is valid.

Joe."

(http://www.nabble.com/DWR-in-Xforms-in-IE-tf4054167.html#a11532326)

I am quite confused as what to do...hehehe...torn between two forums.

NJ


-----Original Message-----
From: [hidden email] [mailto:[hidden email]] On Behalf Of
Alessandro Vernet
Sent: Tuesday, 10 July 2007 6:50 PM
To: [hidden email]
Subject: Re: [ops-users] DWR in Xforms

On 7/10/07, Naman Joshi <[hidden email]> wrote:
> I had a play around and I implemented an example that can be found
here:
>
http://today.java.net/pub/a/today/2007/03/22/developing-applications-usi
> ng-reverse-ajax.html#resources, as an Xforms app. In Firefox it runs
> fine but in IE I get: [...]

Maybe you can try to set a breakpoint there with an IE debugger and
see what the value of "document" is when the error happens. But since
this is happening in the DWR code, you might get some better feedback
posting, like you did, on the DWR forums.

 Alex
--
Orbeon Forms - Web 2.0 Forms, open-source, for the Enterprise
http://www.orbeon.com/


NOTICE
This e-mail and any attachments are confidential and may contain copyright material of Macquarie Bank or third parties. If you are not the intended recipient of this email you should not read, print, re-transmit, store or act in reliance on this e-mail or any attachments, and should destroy all copies of them. Macquarie Bank does not guarantee the integrity of any emails or any attached files. The views or opinions expressed are the author's own and may not reflect the views or opinions of Macquarie Bank.




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On 7/10/07, Naman Joshi <[hidden email]> wrote:
> if(document&&document.body)

This code is in the YUI drag & drop library, which we use. I am not
sure why they need this there, but we are usually not testing on the
existence of document or document.body in our code either. Could you
try to debug this and see what the context is when this happens? Is
there really no document.body? Is there at least a window object? If
there is, can you get more information about this object?

Alex
--
Orbeon Forms - Web 2.0 Forms, open-source, for the Enterprise
http://www.orbeon.com/



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