44645 - [CBX]<SELECT> field flickering

Status: RESOLVED INVALID

(Core :: Layout: Form Controls, defect, P3)

Description

[pbotsas]

There is a multiline-selection-field in a form.

If scrolling down some millimeters and waiting for some seconds the 
multiline-field flickers for a short time.

It seems that the field is rerendered first incorrectly.

Comment 1

[rods (gone)]

neew a reduced testcase, thanks

Comment 2

[pbotsas]

In Build 20000713 still exists the problem.
The difference here is that the flickering is not that obvious as in Build 
20000706. ;)

Comment 3

[pbotsas]

Oops. Another difference:

If you mark the first entry in the selection the flickering exists. If you 
select the second or third line in the selection-list the flickering is gone.

Comment 4

[pbotsas]

But only until you minimize the mozilla window. If you maximize it, the 
flickering is here again! I think that's enough for today! :))

Comment 5

[Peter 'Rufus' Nelson]

confirming on Win98 2000072008

This does not have to do with just the <select>, if you remove everything and
just leave the <select> it loads fine...I'll try to test case but no promises

Comment 6

[Kevin McCluskey (gone)]

Triaging Rods bug list.

Comment 7

[rods (gone)]

Selectionm of an item is very slow, but my guess is that an incremental reflow 
is coming through and there are multiplely nested tables.

marking future for now

Comment 8

[bsharma]

Updating QA contact.

Comment 9

[mark mccormick]

Attachment: testcase

Comment 10

[mark mccormick]

as you remove complexity (i.e. nested tables) from the page, the flicker (or
number of redraws) becomes less and less.

I attached a testcase where the number of flickers(redraws) is brought right
down to 1. Looks to me like it may be a tables problem, not forms.

Comment 11

[rods (gone)]

marking invalid until a testcase show up