1773513 - Alt space menu makes cursor disappear

Status: VERIFIED FIXED

(Core :: Widget: Win32, defect)

Description

[fabrizio :fabrizio]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:101.0) Gecko/20100101 Firefox/101.0

Steps to reproduce:

1. Place cursor on a page anywhere
2. Press ALT+Space on Windows
3. Press ESC once

Actual results:

Cursor disappears, moving it around does not restore it, but clicking does. Moving it outside of Firefox makes it reappear.

Expected results:

Same behavior as other windows applications.

Comment 1

[Stephen A Pohl [:spohl] (OOO until 4/21)]

David, could you triage this one?

Comment 2

[David Parks [:handyman]]

I cannot reproduce this issue on Windows 10 but I see it on Windows 11. Alt-key combinations had special behavior before that took window focus but that's not happening here. The simple fix it to ignore Alt-key combinations.

Comment 3

[David Parks [:handyman]]

Attachment: Bug 1773513: Ignore Alt-key sequences when hiding the cursor on Windows r=cmartin!

On Windows 11, Alt-Space was opening a system context menu while also hiding the mouse cursor.

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/02a7e948a457
Ignore Alt-key sequences when hiding the cursor on Windows r=cmartin

Comment 5

[bszekely]

https://hg.mozilla.org/mozilla-central/rev/02a7e948a457

Comment 6

[Ardelean Oana, Desktop Test Engineering [:oardelean]]

I managed to reproduce this issue on Firefox 102.0(build ID: 20220623063721) on Windows 10 64-bits. Verified as fixed on Firefox 103.0b4(build ID: 20220703190044) and Nightly 104.0a1(build ID: 20220704214252) on Windows 10 64-bits and Windows 11 PRO.

Comment 7

[fremea]

I suggest disabling this ALT+SPACE as a built in firefox shortcut. I didn’t find any cases when it could be useful to anyone and anytime. As a benefice, it will allow extension use this shortcut.