1823130 - Cannot focus multi message summary using mouse (`Tab` key works), thus cannot scroll with keyboard

Status: VERIFIED FIXED

(Thunderbird :: Message Reader UI, defect, P3)

Description

[Kalvin Lee]

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/110.0

Steps to reproduce:

1. From the 3-Pane view, select multiple messages to create the aggregate summary view in the reader pane.
2. Click inside the reader pane (without selecting any single message) to focus it.
3. Use PgDn or PgUp in attempt to scroll through the presented summaries.

Actual results:

Nothing.

Expected results:

I expect the view to be scrollable after clicking to focus.

In actuality, the view is not focusable via mouse click, but must be highlighted by pressing Tab to move the focus from the message list to the reader pane. At this point, PgDn and PgUp work as expected.

Comment 1

[Thomas D. (:thomas8)]

Thanks Kalvin! Confirming for 113.0a1 (2023-03-20) (64-bit), Win10.

Clicking multi-message view does not seem to fully/correctly focus that, as navigation keys do nothing:
Arrow keys, Home, End, Page Up, Page Down

Comment 2

[Geoff Lankow (:darktrojan)]

Attachment: Bug 1823130 - Fix selectability of multi-message view. r=#thunderbird-front-end-reviewers

This page includes messenger.css, which has user-select: none on the root element. That prevents selection of any of the text in multi-message view.

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/comm-central/rev/459a202bde61
Fix selectability of multi-message view. r=aleca

Comment 4

[Wayne Mery (:wsmwk)]

Comment on attachment 9333548 [details]
Bug 1823130 - Fix selectability of multi-message view. r=#thunderbird-front-end-reviewers

[Triage Comment]
Approved for beta

Comment 5

[Daniel Darnell [:dandarnell]]

Thunderbird 114.0b4:
https://hg.mozilla.org/releases/comm-beta/rev/d78e724e75f2

Comment 6

[Kalvin Lee]

Many thanks for the fix — verified as working swimmingly on Fedora 38.