[Tclxml-users] wrong display of not nested,emtpy divs :: ASPN Mail Archive

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MyASPN >> Mail Archive >> Tclxml-users

Tclxml-users

[Tclxml-users] wrong display of not nested,emtpy divs
by Detlef Groth other posts by this author
Nov 24 2004 12:14PM messages near this date

[Tclxml-users] API change? | Re: [Tclxml-users] wrong display of not nested,emtpy divs

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 Da
tabase"]
::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:non
e"/> <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


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Thread:

Detlef Groth

Steve Ball