1816797 - Clicking a folder (that have many subfolders) scrolls the whole folder pane up so the folder is the “first row”.

Status: RESOLVED FIXED

(Thunderbird :: Folder and Message Lists, defect)

Description

[Magnus Melin [:mkmelin]]

Clicking a folder (that have many subfolders, enough subfolders to fill the screen?) scrolls the whole folder pane up so the folder is the “first row”. Selecting the folder should not scroll at all.

Comment 1

[Alessandro Castellani [:aleca]]

I can't reproduce this on macOS or Windows.
I don't think we have any code that autoscrolls the tree, other than if the selected index is outside the viewport (eg. when navigating rows with the arrow keys up and down).
Can you still reproduce it? Can you create a screen recording, or figure out a trace if this method is triggered when not needed?

Comment 2

[Magnus Melin [:mkmelin]]

I can, and it's very annoying. It seems the key is to have more subfolders than fits the screen vertically.
It's apparently this call that is causing it: https://searchfox.org/comm-central/rev/aa8dc0b45f92a64c4b6b98565155693115909b6c/mail/base/content/widgets/tree-listbox.js#462. Changing the block param to something else doesn't help.

Comment 3

[Magnus Melin [:mkmelin]]

Thanks for the pointer, I found a solution.

Comment 4

[Magnus Melin [:mkmelin]]

Attachment: Bug 1816797 - Don't scroll the whole folder + subfolders into view when clicking a folder that have many subfolders. r=aleca

Comment 5

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/comm-central/rev/79a2878f3e3a
Don't scroll the whole folder + subfolders into view when clicking a folder that have many subfolders. r=aleca

Comment 6

[Wayne Mery (:wsmwk)]

Comment on attachment 9318935 [details]
Bug 1816797 - Don't scroll the whole folder + subfolders into view when clicking a folder that have many subfolders. r=aleca

[Triage Comment]
Approved for beta

Comment 7

[Daniel Darnell [:dandarnell]]

Thunderbird 111.0b2:
https://hg.mozilla.org/releases/comm-beta/rev/72a7694410ba