Bug 478513

Summary:	Wallpaper Add toolbar disappears after resizing the window a lot
Product:	[Plasma] plasmashell	Reporter:	Andres Betts <anditosan1000>
Component:	Image & Slideshow wallpaper plugins	Assignee:	Plasma Bugs List <plasma-bugs>
Status:	RESOLVED FIXED
Severity:	crash	CC:	meven, nate, notmart, qydwhotmail
Priority:	NOR	Keywords:	qt6
Version:	5.90.0
Target Milestone:	1.0
Platform:	Fedora RPMs
OS:	Linux
Latest Commit:		Version Fixed In:	6.1.0
Sentry Crash Report:

Description Andres Betts 2023-12-14 16:28:17 UTC

SUMMARY
***
Under wayland and using the wallpaper KCM, when users go to the add button to add custom images to the list of wallpapers, for some reason the toolbar disappears if you add more than one image consecutively. I was able to reproduce the error a couple of times and it was solved by reopening system settings.

The toolbar should not disappear. I asked about this from other contributors who did not experience the same issue even though they were also in the unstable build for Plasma 6.
***

STEPS TO REPRODUCE
1. Access System Settings
2. Access wallpaper KCM
3. Choose to ADD custom images
4. Try until you notice the add button disappears (For me, this was after 2 images added consecutively)

Comment 1 Nate Graham 2023-12-15 20:12:48 UTC

I can reproduce this by rapidly resizing the window to be big and then small and then big again, and so on. Eventually it'll happen.

Comment 2 Méven Car 2023-12-18 11:28:11 UTC

(In reply to Nate Graham from comment #1)
> I can reproduce this by rapidly resizing the window to be big and then small
> and then big again, and so on. Eventually it'll happen.

FYI You reported this.
https://bugreports.qt.io/browse/QTBUG-117035

I believe that's the underlying issue.

Comment 3 Nate Graham 2023-12-20 19:43:32 UTC

Yeah, it's because of the lack of the feature I asked for in https://bugreports.qt.io/browse/QTBUG-117035 that we have to resort to an ugly positioning hack. Evidently the positioning hack breaks when the window is resized a lot, which is what this bug report is all about.

Ideally we wouldn't need the positioning hack because https://bugreports.qt.io/browse/QTBUG-117035 would be fixed/implemented. Then the toolbar could be implemented in a more technically correct way and this bug would disappear on its own.

Comment 4 Nate Graham 2024-11-05 16:51:30 UTC

The issue was worked around in our own code for Plasma 6.1.