Bug 460609

Summary: Context menus are persistent
Product: [Applications] plasma-systemmonitor Reporter: Lastique <andysem>
Component: generalAssignee: KSysGuard Developers <ksysguard-bugs>
Status: RESOLVED UPSTREAM    
Severity: normal CC: ahiemstra, plasma-bugs-null
Priority: NOR    
Version First Reported In: 5.24.6   
Target Milestone: ---   
Platform: Kubuntu   
OS: Linux   
URL: https://bugreports.qt.io/browse/QTBUG-69558
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Lastique 2022-10-17 16:54:15 UTC 
SUMMARY

Context menus that are shown by right-clicking on the list of processes are persistent, i.e. don't close when the user clicks on the window decoration or other windows or desktop. This behavior is inconsistent with context menus created by other applications.

STEPS TO REPRODUCE

1. Open System Monitor on the process list tab.
2. Right-click on one of the processes. In the context menu, hover mouse over "Send Signal".
3. Without clicking on the context menu, move the mouse away and click on the window decoration, another application window or desktop.

OBSERVED RESULT

The context menu stays open.

EXPECTED RESULT

The context menu should disappear.

SOFTWARE/OS VERSIONS

Operating System: Kubuntu 22.04
KDE Plasma Version: 5.24.6
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.3
Kernel Version: 5.15.0-50-lowlatency (64-bit)
Graphics Platform: X11
Processors: 16 × 12th Gen Intel® Core™ i7-12700K
Memory: 31.1 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 2080 Ti/PCIe/SSE2
Comment 1 Arjen Hiemstra 2023-01-11 11:32:32 UTC 
This is a limitation of QtQuick Controls 2 menus and needs to be fixed in Qt.
Comment 2 Lastique 2023-01-11 13:09:57 UTC 
(In reply to Arjen Hiemstra from comment #1)
> This is a limitation of QtQuick Controls 2 menus and needs to be fixed in Qt.

Then please report this to Qt and post a link here. I won't be able to provide any details to Qt devs wrt. where the problem is and what needs to be done.
Comment 3 Lastique 2023-01-13 10:33:47 UTC 
I'm going to reopen this so that it doesn't get lost. Feel free to close it if you report the problem to Qt (please post a link to it as well).
Comment 4 Lastique 2023-01-13 10:38:23 UTC 
As a side note, I don't quite understand why System Monitor has to use some different API for displaying context menus, which behaves differently from every other application on the system. This breaks UX. Why not use the "normal" context menus?
Comment 5 Arjen Hiemstra 2023-01-13 11:28:36 UTC 
The upstream bug is https://bugreports.qt.io/browse/QTBUG-69558

> As a side note, I don't quite understand why System Monitor has to use some different API for displaying context menus, which behaves differently from every other application on the system. This breaks UX. Why not use the "normal" context menus?

It's not a different API, most QtQuick applications will use these same APIs. The difference is between QtWidgets and QtQuick. And choosing between those two has little to do with what menu style is used - the advantages of QtQuick greatly outweigh the minor annoyance of an in-application menu.