Bug 507564

Summary:	Allow smoother Panel thumbnail popup animation
Product:	[Plasma] plasmashell	Reporter:	kdetester
Component:	Task Manager and Icons-Only Task Manager widgets	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	CONFIRMED ---
Severity:	wishlist	CC:	kdedev, nate, niccolo.venerandi, qydwhotmail
Priority:	NOR
Version First Reported In:	6.4.3
Target Milestone:	1.0
Platform:	Neon
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description kdetester 2025-07-27 22:14:12 UTC

SUMMARY
Open multiple windows and move cursor from one panel entry to another.
The previous thumbnail popup vanishes immediately and new thumbnail popup one is shown almost immediately (feels like a flash). Also the new thumbnail popup take few hundred milliseconds to actually render/show the window image inside the thumbnail.

EXPECTED RESULT
The experience it too crude. There should e subtle fade in-out animation, this also gives chance to calculate and render the window image into the new thumbnail.

SOFTWARE/OS VERSIONS
Operating System: KDE neon User Edition
KDE Plasma Version: 6.4.3
KDE Frameworks Version: 6.16.0
Qt Version: 6.9.1

Comment 1 TraceyC 2025-08-01 17:27:21 UTC

To clarify, are you talking about the thumbnails from the task manager only, or also from the system tray?

Comment 2 kdetester 2025-08-01 20:59:18 UTC

(In reply to TraceyC from comment #1)
> To clarify, are you talking about the thumbnails from the task manager only,
> or also from the system tray?

Referring only to the Task manager thumbnail when it is set to "Icons-and-Text" Task Manager.

Comment 3 kdetester 2025-08-01 21:08:16 UTC

For example open firefox, dolphin and discover with "Icons-and-Text" Task Manager.
In the task manager on panel now have 3 entries these software open windows.

Just move cursor across firefox - dolphin - discover task manager window entries. Notice how the thumbnail popup is so fast and the real image of the window inside thumbnail takes few hundred milliseconds to show. The overall animation of previous thumbnail OFF and new thumbnail ON seems too fast. Fade-in--Fade-out animation will look more elegant.

Comment 4 TraceyC 2025-08-01 22:05:34 UTC

Thanks for clarifying the issue. This seems worth considering.