Bug 437324

Summary:	Setting the clipboard size to 1 creates issues in some software
Product:	[Plasma] plasmashell	Reporter:	cyberjunkie <cyberjunkie2k>
Component:	Clipboard widget & pop-up	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED WORKSFORME
Severity:	normal	CC:	cyberjunkie2k, nate
Priority:	NOR
Version First Reported In:	master
Target Milestone:	1.0
Platform:	Other
OS:	Other
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description cyberjunkie 2021-05-18 20:48:47 UTC

SUMMARY
Setting the Clipboard size to 1 creates undesired effects in software like PCManFM or software with an address bar with a text box.

Pressing Alt+D to highlight the addressbar flashes the selection once, and the last saved clipboard entry is lost. Similar issues erratically show up sometimes in Chromium (Chromium Privacy Browser in Fedora 34 running KDE Frameworks Version 5.82.0). 

Clipboard is erratically cleared, sometimes it copies the address from the address bar if you press Alt+D to highlight it. Pressing Ctrl+C repeatedly fixes it. Setting clipboard size to 2 and above fixes it too. 

STEPS TO REPRODUCE
1. Configure Clipboard by right clicking the clipboard icon in the panel
2. Click on the Actions tab
3. Set Clipboard history size to 1, timeout is set to 8, all checkboxes set to off.

OBSERVED RESULT
Alt+D sometimes copies the text from the address bar, sometimes clears the clipboard

EXPECTED RESULT
Alt + D should only highlight the text bar, not copy its value


ADDITIONAL INFORMATION
Operating System: Fedora 34
KDE Frameworks Version: 5.82.0
Qt Version: 5.15.2
Kernel Version: 5.11.20-300.fc34.x86_64
OS Type: 64-bit
Graphics Platform: X11

Comment 1 Nate Graham 2021-05-19 18:56:35 UTC

When using a size-1 clipboard, you probably want to check "Ignore selection" in the settings window so that selecting text doesn't clear the top item automatically. In a multi-item clipboard this isn't a problem since there's somewhere to store the old top item, but not in a size-1 clipboard.

Does that work?

Comment 2 cyberjunkie 2021-05-19 19:26:02 UTC

(In reply to Nate Graham from comment #1)
> When using a size-1 clipboard, you probably want to check "Ignore selection"
> in the settings window so that selecting text doesn't clear the top item
> automatically. In a multi-item clipboard this isn't a problem since there's
> somewhere to store the old top item, but not in a size-1 clipboard.
> 
> Does that work?

This works so far. I'm wondering, if I ever changed it. Is that the default state for 'Ignore selection'. If yes, please delete/close this bug report.

Comment 3 Nate Graham 2021-05-19 19:41:35 UTC

Cool, thanks.

It's not the default state, but it's a setting that makes sense to apply when you turn off history entirely.