Bug 495163

Summary: Feature request: Clock/battery overlay at the corner
Product: [Applications] systemsettings Reporter: Sin Jeong-hun <typingcat>
Component: kcm_kwineffectsAssignee: KWin default assignee <kwin-bugs-null>
Status: RESOLVED INTENTIONAL    
Severity: wishlist CC: ad.liu.jin, nate, plasma-bugs-null
Priority: NOR    
Version First Reported In: 6.2.1   
Target Milestone: ---   
Platform: Other   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Sin Jeong-hun 2024-10-21 23:50:44 UTC 
When watching full screen videos or  doing a full-screen task on a laptop, I often find that I need to check the clock and battery. To do so, currently, I have to exit the full-screen, and place the mouse over the battery icon in the system tray.

I think it would be very convenient if there is an effect that shows the clock/battery at the top corer of the screen (like Japanese morning TV programmes), and I could toggle it on/off with a shortcut.

I don't think it's too hard to implement, so I tried to create an effect myself, but I could not find enough resources to get started, so I could not even make a "hello world" effect. I am continue to search for ways, but in the meanwhile, if someone who knows effect programming well could do it, that would be better.
Comment 1 Jin Liu 2024-10-22 04:55:38 UTC 
You can start from this: https://github.com/jinliu/kwin-effect-overlayclock

documents:
https://develop.kde.org/docs/plasma/kwin/
Comment 2 Nate Graham 2024-12-12 20:46:38 UTC 
Looks like an interesting 3rd-party plugin opportunity! The use case seems fairly niche though, so I don't see this being added to KWin officially. Do feel free to work on it yourself though!