Bug 430404

Summary:	Context menu sometimes blocks touch input -- Unable to interact with or close touch context menu created by TapAndHold gesture/transition to other apps without mouse
Product:	[Plasma] kwin	Reporter:	personalizedrefrigerator
Component:	Gestures	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	CONFIRMED ---
Severity:	normal	CC:	dolphin-bugs-null, nate, sh033
Priority:	NOR
Version First Reported In:	5.20.5
Target Milestone:	---
Platform:	Neon
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description personalizedrefrigerator 2020-12-14 23:16:29 UTC

SUMMARY
Opening the context menu via a tap and hold can create a context menu that cannot be closed with a touchscreen.

STEPS TO REPRODUCE
1. Open Dolphin
2. Tap and hold, thereby showing the context menu
3. Tap on the main Dolphin window, closing the context menu
4. Open the context menu again by tapping and holding (on, say, a folder)
5. Tap away from the context menu.
6. Attempt to change focus to another window using the touchscreen.
7. Click on one of the actions in the context menu.

OBSERVED RESULT
After closing the context menu by tapping away from it once, newly-opened context menus require using a mouse to close.

I am unable to switch focus to other windows, including panels (with touch) before closing this context menu.

EXPECTED RESULT
Tapping on something other than the context menu should close the context menu, regardless of the number of times the context menu has been closed in this way.

I should be able to interact with other apps via touch after opening this context menu.

SOFTWARE/OS VERSIONS
Windows: N/A
macOS: N/A
Linux/KDE Plasma: X11/Neon Packages (available in About System)
KDE Plasma Version: 5.20.4
KDE Frameworks Version: 5.77.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION

Comment 1 Nate Graham 2020-12-15 21:55:09 UTC

Can confirm the bug with those steps to reproduce.

Comment 2 Steffen 2020-12-16 10:56:10 UTC

This bug exists also in Gwenview (hier two finger tap for contextmenu), application launcher (Kickoff) and on the desktop in the folder view mode.

Comment 3 personalizedrefrigerator 2021-01-12 01:55:57 UTC

This doesn't seem to be an issue with Wayland.