212686 - Arrowing into form autocomplete dropdown updates autocomplete (often making the dropdown disappear)

Status: VERIFIED FIXED

(Firefox :: Address Bar, defect)

Description

[Goi]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.5a) Gecko/20030714 Mozilla Firebird/0.6
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.5a) Gecko/20030714 Mozilla Firebird/0.6

When the form autocomplete drop down list appears when filling in forms, using
the keyboard to scroll down the list results in the first entry being selected,
and the drop down box disappearing. No further selection can be made. Mouse
selections work correctly.

Reproducible: Always

Steps to Reproduce:
1. Type in a previously filled in form
2. Press down arrow key to scroll down the list of possible matches
Actual Results:  
The first entry will be selected, and the drop down box will disappear

Expected Results:  
The drop down box should remain to allow the user to continue down the list in
order to select other entries

Could be linked to the fix for bug 212220? Since it only appeared after it was
fixed(0714)

Comment 1

[Tom Lichti]

I actually reported this as part of bug 184202, not sure if that's correct or not, but this behaviour only became apparent after that bug was (apparently) fixed.

Comment 2

[Robert Praetorius]

(seen with Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.5a) Gecko/20030714
Mozilla Firebird/0.6)

Seeing the same (drop-down goes away on down arrow, grabs the first item).
Additionally, characters may be gained or lost.  At http://www.mapquest.com/ ,
when entering the city, if I type a character then down arrow, the character
gets prepended to the top selection from the dropdown list.  When entering
the state, the character gets prepended and the 2nd character of the state gets
chopped off.  At http://www.britannica.com/, if I type in the 1st character of
my username, then downarrow, the 1st two characters of the top selection get
deleted.  Some boxes work just fine, though (if you happen to want the top
selection - I mean they don't add or subtract any characters).

Comment 3

[http://tinymailto.com/oliversl]

Have you try this using a clean new profile?

Comment 4

[Tom Lichti]

Bug occurs with a clean installation, new profile, first site visited.

Comment 5

[Neil Parks]

I have encountered this also.  Not only is the first item on the dropdown list
automatically selected with the down arrow, but it is sometimes garbled.

Example:  A field asks for my name, and I type an uppercase "N".  A dropdown
list appears offering "Neil", "Neil Parks", etc.  If I press the down arrow, the
field is automatically filled with "Neil", the first entry on the list.  But if
I type a lowercase "n" instead, something different happens.  I get the same
drop down list, but this time pressing the down arrow fills the field with "nNeil".

Could this be related to the patch that "fixed" bug #212487?

Comment 6

[djk]

Neil,

The capital/lower case thing is reported as bug 194574.  Bug 210961 appears to
report the same problem as well.

The dates on those bugs indicate that the problem is not realted to the checkin
of bug 212487.

David

Comment 7

[Neil Parks]

David:

Bug #194574 is something completely different, dating back to March.  It makes
no reference to the down arrow automatically selecting the first item on a
dropdown list.  Your comment #3 in that bug talks about the URL bar, which is
not relevant to this bug.  You also mentioned using the arrow to scroll down a
list--something that still works with the URL bar, but which is currently broken
for data-entry fields.

Bug #210961 is talking only about the URL bar.  This bug, and bug #212487, have
nothing to do with the URL bar.  We are concerned here only with data-entry
fields on a form.  The behavior reported in this bug started to occur in
mid-July.  Bug #212487 was fixed in mid-July.  A case of the "post hoc ergo
propter hoc" fallacy?  Maybe.  Or maybe not.

Comment 8

[Jesse Ruderman]

The autocomplete dropdown doesn't disappear.  It gets updated.  Example:

1. Search Google for "quagmire".
2. Search Google for "quagmires".
3. Search Google for "quantum".
4. Type "q" into a Google Search box.
5. Down arrow to "quagmire", which should be the first entry.

Result: the autocomplete dropdown now only shows "quagmires" (like it would if
you had typed out "quagmire").

I bet this was caused by bryner's fix for bug 212487, "Form autocomplete is one
character behind typed text".

Comment 9

[djk]

Neil,

I was only responding to your comment 5 (that the text in the field gets garbled
when the case of what is typed differs from what is stored for autocomplete);
not the down-arrow problem.  I realize the down-arrow problem is probably due to
the fix for bug 212487 and does not affect the URL bar.

Both the URL bar and form autocomplete show the same symptom of messing up the
textfield text when the case differs; that symptom existed before the fix for
bug 212487 went in.

Therefore, I submit to you that the 'mixed case bug' is distinct from this bug
and bug 212487.  By referencing bug 194574 and bug 210961, I was attempting to
point you to bugs that are probably more relevant to what you mentioned in
comment 5.

In bug 194574 comment 3, I used the URL bar as the testcase to point out the
fact that maybe the 'case problem' lies in some common code that the URL bar and
form autocomplete both use.

David

Comment 10

[Brian Ryner (not reading)]

Ah, right.  When we update the autocomplete text as you arrow down, that will
cause a second oninput event.

Comment 11

[Brian Ryner (not reading)]

Attachment: fix

This prevents the normal oninput event processing if the input event was caused
by autocomplete updating the text field contents.

Comment 12

[Brian Ryner (not reading)]

checked in.

Comment 13

[Mike Connor [:mconnor]]

Brian, did you check this in on the branch for 0.6.1 as well?

Comment 14

[Brian Ryner (not reading)]

Just waiting for it to clear on tinderbox with no bustage or perf regressions,
then I'll do so.

Comment 15

[noririty]

v.
2003072608-trunk
2003072612-1_5a_BRANCH

Comment 16

[Jeremy M. Dolan]

v in linux too. Filed 214222 for a new issue I found when selecting one entry
then typing a letter from another.