Bug 503519

Summary:	Kate opens files in existing instances even if they are all on other virtual desktops
Product:	[Applications] kate	Reporter:	Andrew <chuvik.hacker>
Component:	general	Assignee:	KWrite Developers <kwrite-bugs-null>
Status:	CONFIRMED ---
Severity:	normal	CC:	christoph, meven, wiagn233
Priority:	NOR
Version First Reported In:	Git
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
URL:	https://gitlab.freedesktop.org/wayland/wayland-protocols/-/merge_requests/203
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Andrew 2025-04-29 11:37:51 UTC

SUMMARY
When opening a file from a file manager or with "kate filename.txt" command, it will always find the last used running instance and create a new tab there. This happens even if all the Kate windows are not on current virtual desktop. I have to start a new Kate manually and only then open the file.

STEPS TO REPRODUCE
1. Start Kate
2. Switch to a different virtual desktop
3. Open a text file with Kate through a file manager

OBSERVED RESULT
Best case - Kate flashes in your panel's task manager widget, and that's it.

EXPECTED RESULT
A new instance of Kate appears with the requested file in its only tab.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 6.3.4
KDE Frameworks Version: 6.13.0
Qt Version: 6.9.0
Kernel Version: 6.14.3-arch1-1 (64-bit)
Graphics Platform: Wayland

ADDITIONAL INFORMATION
Originally I though this is not a bug, but Méven on discuss.kde.org forwarded me back here.

Comment 1 Méven 2025-04-29 11:44:16 UTC

Can take some inspiration from:
https://invent.kde.org/system/dolphin/-/merge_requests/529

Comment 2 Christoph Cullmann 2025-04-29 14:38:37 UTC

(In reply to Méven from comment #1)
> Can take some inspiration from:
> https://invent.kde.org/system/dolphin/-/merge_requests/529

Perhaps I miss something there, but how does that work on Wayland? For X11 we have such code, too.

Comment 3 Christoph Cullmann 2025-04-29 14:45:50 UTC

We will need something like

https://gitlab.freedesktop.org/wayland/wayland-protocols/-/merge_requests/203

for Wayland.

Comment 4 Christoph Cullmann 2025-05-02 15:24:04 UTC

As soon as it is possible, we will fix that, but so far we lack infrastructure for this.

Comment 5 Christoph Cullmann 2025-06-19 15:04:41 UTC

Linked this bug in the freedesktop request.