Bug 480997

Summary: Feature request: Create global shortcut to temporarily restrict user inputs (toddler proofing - kiosk)
Product: [Plasma] kwin Reporter: funkybomber
Component: inputAssignee: KWin default assignee <kwin-bugs-null>
Status: CONFIRMED ---    
Severity: wishlist CC: kdedev, locutusofborg64, nate, seregasel44
Priority: NOR Keywords: usability
Version First Reported In: unspecified   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description funkybomber 2024-02-07 10:46:17 UTC 
SUMMARY
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Based on the discussion at: 
https://discuss.kde.org/t/baby-proofing-the-desktop-control-of-inputs/9673

There are some scenarios where it is useful for a user to be able to temporarily restrict the inputs (mouse, keyboard, trackpad etc) while keeping the desktop unlocked (such as a kiosk usecase). 

I propose creating an option to give users the ability to create a global shortcut that disables the mouse and ignores all keystrokes (apart from the unlocking shortcut).

Once the user gives the correct key combination then all the inputs get restored.

A good key combination would be something that would not be easy to replicate by mashing on the keyboard. A good default could be Meta+Scroll Lock. 

The option should be exposed to the user somewhere in the settings and it should be possible for the user to reassign this functionality to a different shortcut.

Any other system shortcuts (global, custom, etc) should probably be unavailable/inactive while this mode is active, in order to not interfere.
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Comment 1 locutusofborg 2024-02-16 16:53:13 UTC 
I don't have children, but I take care of an older person who's hands shake a lot, and because of this has inadvertently messed up settings leaving me to fix things. I would love something like this but just for say settings, icons, and panels and still be able to allow them fairly easy access to their email and browser.
Comment 2 Sergey Selivanov 2024-12-14 14:07:48 UTC 
I know there is xtrlock software for X11 sessions that lock mouse and keyboard input until the password is (blindly) provided. 
I guess we need KWin stuff to do the same thing. 
I would love that thing because I live with some friends that could delete any of my work just for fun.
Comment 3 TraceyC 2025-10-09 20:25:35 UTC 
This sounds like a usability improvement that's worth considering.