924325 - Autocomplete form popup/dropdown position doesn't take CSS transforms into account

Status: RESOLVED DUPLICATE of bug 467442

(Core :: Layout: Form Controls, defect)

Description

[:Gijs (he/him)]

Attachment: Screenshot

STR:

1. Pick a cset on mcmerge, e.g. https://tbpl.mozilla.org/mcmerge/?cset=aa03fbc1149f&tree=UX
2. Do something to the cset, click Submit
3. Hit down arrow in the autocomplete box to make the autocomplete popup show up (assuming it has something in it at that point)

ER: popup shows up just below input box

AR: popup shows up offset down and to the right.

Screenshot attached.

Comment 1

[Matthew N. [:MattN]]

I don't think Form Manager itself is at fault here. This is more likely an autocomplete or layout bug.

Any idea whether this is a regression?

Comment 2

[:Gijs (he/him)]

Ah, sorry, should have said. I'm seeing this on 25beta. To be frank, I've not even tested Nightly... I'll try that on my next push.

Comment 3

[:Gijs (he/him)]

I can reproduce this on recent nightlies (2013-10-07) as well.

Comment 4

[Matthew N. [:MattN]]

This problem has been around since at least 2010-09 (the earliest builds I can run on 10.7).

Comment 5

[Matthew N. [:MattN]]

Attachment: Reduced test case

The problem seems to occur when a transform is applied to an <input>. This may require the same solution as bug 455164.