1733271 - Win7, recipient autocomplete results disappear on hover

Status: RESOLVED FIXED

(Thunderbird :: Theme, defect)

Description

[Doug Kerr]

User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:92.0) Gecko/20100101 Firefox/92.0

Steps to reproduce:

Note first that I am operating with Windows 7 and do not have an "Aero" theme in use. (I mention that because that figured into a similar problem I had earlier, perhaps in Firefox.)

I opened the Write window and in the "To" field typed the first part of a name. A list of candidate names appeared. I hovered over the list while considering which one to pick.

Actual results:

Any name I hovered over became invisible.

Expected results:

Names I hover over should not become invisible. They perhaps should become emphasized in some way. That is likely the intent.

Comment 1

[Wayne Mery (:wsmwk)]

Does it also happen after doing Help > Troubleshoot Mode?

Comment 2

[Doug Kerr]

It is the same in Troubleshoot Mode.

Comment 3

[Thomas D. (:thomas8)]

Could be a theme issue on Windows 7 when Aero is not used (per reporter's comment 0).

Comment 4

[Richard Marti (:Paenglab)]

Attachment: 1733271-Win7-classic-arrowpanel.patch

The default background color is calculated from the text color (https://searchfox.org/comm-central/source/mail/themes/shared/mail/messenger.css#99). Win 7 Classic uses white and this doesn't work well.

Comment 5

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/comm-central/rev/535d4e2bd87f
[Win 7 Classic] Set a better hover background color on composers autocomplete-richlistitem. r=aleca

Comment 6

[Richard Marti (:Paenglab)]

Comment on attachment 9243939 [details] [diff] [review]
1733271-Win7-classic-arrowpanel.patch

Only asking for ESR because this fix will be in the next beta through merge.
[Approval Request Comment]
User impact if declined: white text on white background of autocomplete item in composer under Win 7 Classic
Testing completed (on c-c, etc.): on c-c
Risk to taking this patch (and alternatives if risky): low

Comment 7

[Wayne Mery (:wsmwk)]

Comment on attachment 9243939 [details] [diff] [review]
1733271-Win7-classic-arrowpanel.patch

[Triage Comment]
Approved for esr91

Comment 8

[Rob Lemley [:rjl]]

Thunderbird 91.2.1:
https://hg.mozilla.org/releases/comm-esr91/rev/d6a917e5938b