RE: Using Jivan in a Barracuda App - Solved!

Thanks for the patch, David!  It has been applied to the latest CVS.  I 
also committed Arno's JivanDOMWriter.

Jake

At 08:00 AM 12/1/2003 -0500, you wrote:
>I've isolated the problem. The problem is that when Jivan parses a file where
>there is blank space between the <table> and <tr> tags, it inserts a Text node
>containing the spaces. Then when HTMLComponentRenderer renders the DOM, it
>checks to ensure that only <TR> elements are children of a <TABLE> element. If
>not, then it creates a new <TR> element to enclose the unexpected element. 
>I've
>modified HTMLComponentRenderer to ignore child nodes if they are empty Text
>nodes. I've included the source with this message.
>
>David Robison
>
>Quoting Christian Cryder <[email protected]>:
>
> > Just a comment...
> >
> > Theoretically, Barracuda should work just fine - it doesn't do anything
> > that
> > is XMLC specific (or at least, its not supposed to ;-)...all the
> > interaction
> > with the DOM occurs through the DOM interfaces, so it should be a
> > simple
> > matter to plug in a DOM that was created from a different source.
> >
> > That said, I haven't actually tried Jivan yet, personally, so I can't
> > say
> > for sure what will happen. And unfortunately, I have zero free cycles
> > right
> > now (seems to be the story of my life lately)
> >
> > I have a couple of suggestions.
> >
> > First, I'd try loading the same page entirely with XMLC/BTemplate, and
> > make
> > sure it works there. In other words, get a functional starting point
> > with
> > BTemplate. Typically, when you use BTemplate you won't directly render
> > it
> > yourself - you'll just extend BTemplateViewHandler and let it do the
> > work.
> >
> > Second, once you get that working, then try substituting in a Jivan
> > loaded
> > DOM (without changing anything else). That will tell us for sure if
> > the
> > problem is in BTemplate (or Jivan), rather than in the way you are
> > trying to
> > use it.
> >
> > Third, you may have to dive into BTemplateHandler and the specific
> > component
> > renderers to see exactly what is going on. This may be a bit
> > intimidating,
> > but I think we could help coach you through it if you're willing to get
> > in
> > and do some of the debugging work. My one suggestion if you get to
> > this
> > point is to make you template as simple as you possibly can before
> > trying to
> > debug through BTemplateHandler - that will help keep you from getting
> > more
> > confused than you need be.
> >
> > Let us know how it goes!
> >
> > Christian
> >
> > ----------------------------------------------
> > Christian Cryder
> > Internet Architect, ATMReports.com
> > Project Chair, BarracudaMVC - http://barracudamvc.org
> > ----------------------------------------------
> > "Coffee? I could quit anytime, just not today"
> >
> >
> > > -----Original Message-----
> > > From: [email protected]
> > > [mailto:[email protected]]On Behalf Of David R
> > Robison
> > > Sent: Wednesday, November 26, 2003 8:23 AM
> > > To: [email protected]
> > > Subject: Re: [Barracuda] Using Jivan in a Barracuda App
> > >
> > >
> > > Thanks for the help...
> > >
> > > The problem definitely is caused when I call templateComp.render(new
> > > DefaultViewContext(context). I was hoping to use Jivan along with
> > > Barracuda's
> > > Template Models. Any idea how I could get them both to work
> > > together in harmony?
> > >
> > > David Robison
> > >
> > > Quoting Arno Schatz <[email protected]>:
> > >
> > > > David,
> > > >
> > > > Parsing the html you posted has been done with Jivan before, and I
> > > > checked
> > > > it again, the parser parses it correctly. I tried to replicate the
> > DOM
> > > > manipulations which happens is BTemplate and couldn't see any
> > > > problems.
> > > >
> > > > I haven't used BTemplate actually, so I don't know exactly what's
> > going
> > > > on
> > > > in there. But you can print out the DOM before and after BTemplate
> > is
> > > > being
> > > > called. Can you call org.jivan.html.test.DOMTest.print( doc, "")
> > before
> > > > and
> > > > after BTemplate?
> > > >
> > > > Sorry I can give you a better answer, I haven't used Barracuda
> > myself,
> > > > yet.
> > > >
> > > > -Arno
> > > >
> > > >
> > > > > That was a typo on the message... David
> > > > >
> > > > > Christian Cryder wrote:
> > > > >
> > > > > >><table><tr><td>
> > > > > >>BBB
> > > > > >></tr></td></table>
> > > > > >>
> > > > > >>
> > > > > >
> > > > > >Not sure if that was a typo or not, but I see an obvious
> > > > problem...your
> > > > > ></tr></td> are in the wrong order. They should be reversed.
> > > > > >
> > > > > >Christian
> > > > > >----------------------------------------------
> > > > > >Christian Cryder
> > > > > >Internet Architect, ATMReports.com
> > > > > >Project Chair, BarracudaMVC - http://barracudamvc.org
> > > > > >----------------------------------------------
> > > > > >"Coffee? I could quit anytime, just not today"
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >>-----Original Message-----
> > > > > >>From: [email protected]
> > > > > >>[mailto:[email protected]]On Behalf Of David R
> > > > Robison
> > > > > >>Sent: Tuesday, November 25, 2003 7:42 AM
> > > > > >>To: [email protected]
> > > > > >>Subject: Re: [Barracuda] Using Jivan in a Barracuda App
> > > > > >>
> > > > > >>
> > > > > >>The JivanDOMWriter did NOT fix the problem. I now believe that
> > > > > >>the problem might
> > > > > >>lie somewhere in the Jivan parser. It appears to be very
> > > > > >>sensitive to how the
> > > > > >>text file is layed out. For example, the following code
> > renders
> > > > > correctly:
> > > > > >>
> > > > > >><table><tr><td>
> > > > > >>BBB
> > > > > >></tr></td></table>
> > > > > >>
> > > > > >>however, if there is line breaks and space between the
> > elements
> > > > such
> > > > > as...
> > > > > >>
> > > > > >><table>
> > > > > >>   <tr>
> > > > > >>      <td>
> > > > > >>       BB
> > > > > >>      </td>
> > > > > >>   </tr>
> > > > > >></table>
> > > > > >>
> > > > > >>then it likes to insert empty <tr></tr> and <td></td> blocks.
> > > > > >>
> > > > > >>David Robison
> > > > > >>
> > > > > >>
> > > >
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