Bug 420244

Summary:	"Paste" feature of apps (Kate and Konsole, for example) is enabled even when the clipboard is empty
Product:	[Frameworks and Libraries] frameworks-kconfigwidgets	Reporter:	Patrick Silva <bugseforuns>
Component:	general	Assignee:	kdelibs bugs <kdelibs-bugs-null>
Status:	CONFIRMED ---
Severity:	minor	CC:	kde, nate
Priority:	NOR	Keywords:	usability
Version First Reported In:	5.245.0
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Patrick Silva 2020-04-18 12:41:32 UTC

STEPS TO REPRODUCE
1. use the clipboard applet in systray to make sure that your clipboard is empty. If it is not, empty it.
2. open Kate
3. right-click on the text area: "Paste" entry is enabled.
Click on "Edit" menu: its "Paste" entry is enabled too.

EXPECTED RESULT
"Paste" entry of menu bar and context menu should be disabled when there is nothing to paste.


SOFTWARE/OS VERSIONS
Operating System: KDE neon Unstable Edition
KDE Plasma Version: 5.18.80
KDE Frameworks Version: 5.70.0
Qt Version: 5.14.1

Comment 1 Patrick Silva 2020-04-19 13:53:22 UTC

it's not a Kate issue. Konsole is also affected and sometimes I can't paste
copied text. Re-assigning to klipper.

Comment 2 Patrick Silva 2021-09-18 16:13:00 UTC

Reproducible at least on Wayland.

Operating System: Arch Linux
KDE Plasma Version: 5.22.90
KDE Frameworks Version: 5.86.0
Qt Version: 5.15.2
Graphics Platform: Wayland

Comment 3 David Edmundson 2021-10-03 19:45:21 UTC

Not a plasmashell bug.

Comment 4 David Edmundson 2021-10-03 19:47:14 UTC

Reproducible on x11 too.

QClipboard does get notified when clipboard is emptied.

It will add a noticable amount of overhead to have apps update and check, we hit a noticeable slowdown with QQuickTextInputs check. If someone makes a one line obvious fix in KStandardActions, please check that properly.