Bug 444334 - Mouse Mark effect draws arrows if ctrl modifier pressed
Summary: Mouse Mark effect draws arrows if ctrl modifier pressed
Status: RESOLVED FIXED
Alias: None
Product: kwin
Classification: Plasma
Component: effects-various (other bugs)
Version First Reported In: unspecified
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2021-10-24 17:05 UTC by Andrew Shark
Modified: 2023-07-05 12:35 UTC (History)
2 users (show)

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:

Attachments
Mouse mark arrows (1.74 MB, video/mp4)
2021-10-24 17:05 UTC, Andrew Shark 		Details
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Description Andrew Shark 2021-10-24 17:05:03 UTC 
Created attachment 142829 [details]
Mouse mark arrows

Mouse Mark effect has shortcut Shift + Meta. It works as expected (draws line after mouse) if the only these modifiers are held. But if you additionally  press Ctrl (i.e. hold Ctrl + Shift + Meta), then the effect start drawing arrows. See the attached video.
If moving mouse rather slow, the arrows' length is short and they may look like just angles.

STEPS TO REPRODUCE
1. Activate Mouse Mark effect in System Settings.
2. Press and hold Ctrl + Shift + Meta and move your mouse.

OBSERVED RESULT
Mouse Mark draws arrows following mouse position.

EXPECTED RESULT
It should not draw arrows. Effect should not draw anything when additional modifier (ctrl) is pressed.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.23.1
KDE Frameworks Version: 5.87.0
Qt Version: 5.15.2
Kernel Version: 5.14.12-arch1-1 (64-bit)
Graphics Platform: X11

ADDITIONAL INFORMATION
When pressing Meta+Shift+Alt, the effect is not drawing anything, as expected.
Comment 1 Nate Graham 2021-10-25 21:20:36 UTC 
Can reproduce, though I can't tell whether this is a bug, or a hidden feature. It feels a bit too rough to be a feature, though to be fair that's common for a lot of old effects.
Comment 2 Henrique Sant'Anna 2022-10-06 14:57:54 UTC 
It's a feature.

Press Ctrl + Shift + Meta, move the mouse pointer, press Ctrl + Shift + Meta again. Only works on Wayland.

Probably it would be better to require a mouse down-up do draw the arrow, not only the keyboard short-keys.
Comment 3 Andrew Shark 2022-11-17 17:11:45 UTC 
What is the purpose of that "feature"?