281242 - Dropdown Lists Lose Ability to Scroll on Keypress

Status: RESOLVED WORKSFORME

(Toolkit :: Form Manager, defect)

Description

[Jerry Baker]

20050203 trunk

If you have a dropdown list (e.g., a list of US states) with focus, pressing the
letter "C" one time should bring up "California", twice "Colorado" and so forth.
Likewise, pressing "A" should bring up Alaska. Somewhere Firefox gets confused
about all this and stops working.

Load up the test case. Place focus in the list and press "C". California shows
up ... perfect. Now press "A" and you get Alaska ... perfect. Now press "C"
again. If it works, alternate letters. Firefox is going to lose track very fast.
When it does, keypresses will stop doing anything. To restore proper behavior
just blur and refocus the dropdown.

Comment 1

[Jerry Baker]

Attachment: US states dropdown list

Comment 2

[Erik Fabert]

This behaviour is intentional: if the interval between 'C' and 'A' is less than
1 second, the browser will try to match 'CA' and finds California, so the
selection does not move. Try to press 'I', then 'L': Illinois gets selected, not
Louisiana.

Comment 3

[Cyriel van 't End]

(In reply to comment #2)
> This behaviour is intentional: if the interval between 'C' and 'A' is less than
> 1 second, the browser will try to match 'CA' and finds California, so the
> selection does not move. Try to press 'I', then 'L': Illinois gets selected, not
> Louisiana.

No the reporter is correct, try this in the testcase:

Press a combination of letters e.g. 'A','C','A','D' with pauses and you'll see
that Firefox gets completely confused where it should jump to. If it works for a
while just keep going, and you'll see that Firefox will do nothing when you type
the next letter.

Tested this w/ Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5)
Gecko/20041107 Firefox/1.0

Comment 4

[Jerry Baker]

comment #2 points something out that I had not known ... that if you wait for a
second or two after the list stops working, it will reset itself. I suppose the
root problem here might be that 1 second is too long.

Comment 5

[Mats Palmgren (inactive)]

WFM, 2005-02-04-06 trunk Linux.

Comment 6

[Wayne Mery (:wsmwk)]

WFM 
- Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9a1) Gecko/20060629 Minefield/3.0a1
- Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.4) Gecko/20060516 SeaMonkey/1.0.2

Comment 7

[Wayne Mery (:wsmwk)]

closing