STEPS TO REPRODUCE 1. open Window Rules KCM 2. import the attached window rules 3. delete many rules in sequence OBSERVED RESULT Rows are highlighted in blue as the list scrolls while window rules are deleted in sequence. The highlight in blue disappears on mouseover. Please watch the attached screen recording. EXPECTED RESULT the observed result should not occur SOFTWARE/OS VERSIONS Operating System: KDE neon Unstable Edition KDE Plasma Version: 5.23.80 KDE Frameworks Version: 5.89.0 Qt Version: 5.15.3 Graphics Platform: X11
Created attachment 143761 [details] window rules
Created attachment 143762 [details] screen recording
A possibly relevant merge request was started @ https://invent.kde.org/plasma/kwin/-/merge_requests/1694
Git commit 5e17de0ffd62b6b04ad7d7e26aa4a705970e3127 by Ismael Asensio. Committed on 22/11/2021 at 12:48. Pushed by iasensio into branch 'master'. kcm/kwinrules: Port away from DelegateRecycler We want to port from this compontent in general, as the ListView can reuse items directly and it's a bit less bug-prone. FIXED-IN: 5.24 M +15 -8 src/kcmkwin/kwinrules/package/contents/ui/RulesList.qml https://invent.kde.org/plasma/kwin/commit/5e17de0ffd62b6b04ad7d7e26aa4a705970e3127
This effect has been reduced, but not fully solved. It happens because reused items in the list do not reset their `hovered` property when they're deleted. Since the property is read-only, it will require an upstream fix in Qt.
(In reply to Ismael Asensio from comment #5) > This effect has been reduced, but not fully solved. > It happens because reused items in the list do not reset their `hovered` > property when they're deleted. > > Since the property is read-only, it will require an upstream fix in Qt. Can we close this report Ismael?
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
This is definitely an upstream issue we cannot solve from our side. I was dubious to close this, as a reminder because there are still no bug report filled in the Qt bug tracker. But keeping an unactionable item in our bug tracker doesn't help either.