[Tclxml-users] wrong display of not nested,emtpy divs

SourceForge Headquarters 225 Broadway Suite 1600 San Diego, CA 92101 +1 (858) 422-6466

Hello,

for a web application I build a dom-tree in memory and depending on
user input I hide or display certain parts of the dom-tree.

Sample session to create the document:
(tclkit) 2 % package require xml::tcl
3.0
(tclkit) 3 %   set doc [dom::DOMImplementation create]
invalid command name "dom::DOMImplementation"
(tclkit) 4 % package require dom
3.0
(tclkit) 5 %   set doc [dom::DOMImplementation create]
::dom::tcl::document1::Document
(tclkit) 6 %    set top [dom::document createElement $doc html]
::dom::tcl::document1::node2
(tclkit) 7 %     set head [dom::document createElement $top head]
::dom::tcl::document1::node6
(tclkit) 8 %     set title [dom::document createElement $head title]
::dom::tcl::document1::node10
(tclkit) 9 %     set titleText [dom::document createTextNode $title "MPIMG Berlin - Mouse Database"]
::dom::tcl::document1::node14
(tclkit) 10 %    set body [dom::document createElement $top body]
::dom::tcl::document1::node18
(tclkit) 11 %     set div [dom::document createElement $body div]
::dom::tcl::document1::node22
(tclkit) 12 % dom::element setAttribute $div style display:none;
display:none
(tclkit) 13 %     set div [dom::document createElement $body div]
::dom::tcl::document1::node27
(tclkit) 14 % [dom::document createTextNode $div Test]
wrong # args: should be "::dom::tcl::document1::node31 method args"
(tclkit) 15 % dom::document createTextNode $div Test
::dom::tcl::document1::node35
(tclkit) 16 % $doc serialize -html
unknown method "serialize"
(tclkit) 17 % dom::serialize $doc -method "html"
<?xml version='1.0'?>
<!DOCTYPE html>
<html><head><title>MPIMG Berlin - Mouse Database</title></head><body><div style="display:none"/><div>TestTest</div></body></html>
(tclkit) 18 % dom::serialize $doc -method "html" -indent
list must have an even number of elements
(tclkit) 19 % dom::serialize $doc -method "html" -indent 2
<?xml version='1.0'?>
<!DOCTYPE html>

    <html>
      <head>
	<title>MPIMG Berlin - Mouse Database</title>
      </head>
      <body>
	<div style="display:none"/>
	<div>TestTest</div>
      </body>
    </html>

both outputs did not render the text although the TestTest-text is not
a parent of the display:none-div.

if we change the html-code manually to 

  <html>
      <head>
	<title>MPIMG Berlin - Mouse Database</title>
      </head>
      <body>
	<div style="display:none"></div>
	<div>TestTest</div>
      </body>
    </html>

which should be the same than it renders right. So my adivise is to
change the following:
$ diff /d/tcl-lib/tcldom3.0/dom.tcl ~/cvs/tclhttpd/customlib/tcldom3.0/dom.tcl
... some other stuff

< 
<       append result />$newline
---
>         # dgroth fixes bad browser behaviour with <div style='display:none'/> tags
>       append result "></$nsPrefix$node(node:localName)>$newline"

Or at least allow a option with serialize like:

::dom::DOMImplementation serialize $doc -emptytags false

I think with tdom this is the default because I did not observe this
missbehaviour (of modern browsers) until now.

regards,
Detlef

-- 
Dr. Detlef Groth
Max-Planck-Institut
fuer Molekulare Genetik
Ihnestr. 63/73
D-14195 Berlin
Tel.: + 49 30 - 8413 1235