1843206 - Developer Tools content is not updated until I move the cursor over Developer Tools after docking the window

Status: RESOLVED WORKSFORME

(DevTools :: General, defect, P3)

Description

[6k64x4ma]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/116.0

Steps to reproduce:

1. Open the Developer Tools.
2. Click on the meatballs menu -> select "Separate Window".
3. Click on the meatballs menu -> select "Dock to Bottom".
4. Resize the width of Firefox window, resize the height of Developer Tools, or click on the meatballs menu.

Actual results:

• Developer Tools content is not updated until I move the cursor over Developer Tools.

Expected results:

• Developer Tools content should be updated immediately.

regressed by:
Bug 1779559 - Do this in toolkit instead. r=Gijs
Differential Revision: https://phabricator.services.mozilla.com/D151822

Comment 1

[BugBot [:suhaib / :marco/ :calixte]]

:emilio, since you are the author of the regressor, bug 1779559, could you take a look? Also, could you set the severity field?

For more information, please visit BugBot documentation.

Comment 2

[Emilio Cobos Álvarez [:emilio]]

Any chance you could provide a screencast? I don't seem to be able to reproduce on Windows 11...

Comment 3

[6k64x4ma]

Attachment: Firefox Nightly 2023-07-13 20-41-04.mp4

Only the scene where the height of Devtools is changed is recorded.

Comment 4

[Julian Descottes [:jdescottes]]

FWIW, can't reproduce on macos, even after forcing prefers-reduced-motion

Comment 5

[Julian Descottes [:jdescottes]]

Honza: can you try to repro on Windows with prefers-reduced-motion enabled

Comment 6

[Jan Honza Odvarko [:Honza] (always need-info? me)]

I just tested this on Windows 11 Pro, with ui.prefersReducedMotion set to 1, followed STRs from the comment #0 and I can't reproduce it.

Honza

Comment 7

[6k64x4ma]

I think I found a condition.
To reproduce this, move or resize the Developer Tools window to fit inside the Firefox window before step 3.

And this happens with/without prefers-reduced-motion.

Comment 8

[6k64x4ma]

The issue seems to be fixed by bug 1875100, thanks.