Rails spinoffs - Aug 2006 - scriptaculous sortable element not clipping the invisible part on a div with scroll

Hi,

I found a problem (and working solution) for incorrect clipping for 
sortable list within a scrolling div.

I have a div, with a height of 200px. And inside the div i have a list 
<ul> with several elements, exceeding the maximum height of the 
containing div. The div is set to auto overflow (i.e., it will add 
scroll bars when necessary, clipping the invisible area and displaying 
only the specified height).

Everything is cake so far and everything is working as expected. Until I 
try to make the list sortable. When I do so, the list elements display 
as if the div had no overflow property, so they get out of the 
containing div, floating over the other elements in mi page. Trying to 
set via javascript the height of both div and list after making the list 
sortable doesn''t help.

My solution for this problem was not using the list element finally, but 
making the div itself sortable. In the div instead of using <li> for the 
elements I use <p> (since i don''t have a list already). After
that,
everything is fine. The part outside the limits of the div keeps 
invisible until scrolling. The only fallout -that i could appreciate- of 
this approach is you have to explicitly pass the "tag" parameter,
since
we are not using the default <li> tag.

This behavior was tested both on IE and Mozilla with equal results. 
Maybe this problem rings a bell for someone who knows the code well 
enough and it could be patched. In the meantime, the workaround is just 
fine.

cheers,

j


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