plasma-workspace: pinned apps to taskmanager, when launched, have an additional launcher

[worldofpeace]

Issue description

I discovered this underlying behaviour whilst triaging latte-dock where this is really apparent and annoying.

I'm going to make use of a screencast because it's more evident this way.

Steps to reproduce

1. dnd an app from launcher to taskmanager or right click in launcher and select pin to task manager
2. 🚀 it
3. See two launchers

Just to be very clear, this is a pinned app in the task manager. Not to the panel.
A pinned launcher to the panel would never disappear when launched.

I very suspect that this is only nixos specific because I haven't seen this anywhere else.

Technical details

• system: "x86_64-linux"
• host os: Linux 4.14.34, NixOS, 18.03.132006.6ba9b9c9fa2 (Impala)
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.0
• channels(root): "nixos-18.03.132006.6ba9b9c9fa2"
• nixpkgs: /nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs

[worldofpeace]

#40893

[bkchr]

Will Plasma 5.13 solve your problem?

[worldofpeace]

@bkchr
I would like to hope so 😁
Most likely not, I think this might need some patchwork from us to upstream.

[bkchr]

I think I solved your problem. Open Dolphin first, then in task manager, right click and choose "pin". Close dolphin, reopen with your pinned dolphin and it is not duplicated anymore.

[worldofpeace]

Yep, that is a work around I found while triaging latte-dock also.
Imagine how riddiclous that get's when you have lot's of apps to pin.

Obviously I could reproduce this with latte-dock which uses the same things as the taskmanager
and I noticed this:

If i dnd into the taskmanager this would be in that apps config

[Containments][1][Applets][2][Configuration][General]
isInLatteDock=true
...
launchers59=file:///run/current-system/sw/share/applications/org.kde.ark.desktop

But if I did exactly what you suggested this would be in it:

[Containments][1][Applets][2][Configuration][General]
isInLatteDock=true
...
launchers59=applications:org.kde.ark.desktop

[bkchr]

Where are this configuration files stored?

[worldofpeace]

Um these were specific to latte-dock, at ~/.config/latte/${something}

[stale]

Thank you for your contributions.

This has been automatically marked as stale because it has had no activity for 180 days.

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[Artturin]

Probably fixed?