elementaryOS Second Icon in Taskbar

[Anchor5178]

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Summary

Second icon opening up when launching Cryptomator

What software is involved?

• Operating System: elementaryOS 6 Odin
• Cryptomator: 1.6.3

Volume Type

FUSE

Steps to Reproduce

1. install elementaryOS 6
2. install Cryptomator AppImage
3. open Cryptomator

Expected Behavior

When launching Appimage via Appimage directly or via Icon in Dock or Start Menu i expect the Application to open within the original icon in the dock.

Actual Behavior

When launching Cryptomator Appimage there is a second icon popping up and revealing as the actual application.

Left: Original Appimage which is shown in dock and startmenu, Right: Actual application that will open.

When right clicking the actual application icon there is only shown "close", it is missing the option to pin it to the dock.

Reproducibility

Always

Relevant Log Output

No response

Anything else?

No response

[overheadhunter]

Probably the StartupWMClass problem again... See also: cryptomator/cryptomator-linux#10

IIRC this was something where we had to choose between a rock and a hard place...

What does xprop WM_CLASS return for this window?

[Anchor5178]

@overheadhunter WM_CLASS(STRING) = "java", "java"

[tconsta]

Confirm the same on Ubuntu.
Linux 5.13.0-27-generic #29~20.04.1-Ubuntu SMP Fri Jan 14 00:32:30 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

WM_CLASS(STRING) = "java", "java"

[overheadhunter]

@infeo We used to start the app via the jpackage'd binary. But iirc, you changed this to a .sh script due to the different GTK flags. This script will then launch the java binary instead. Hence the change in the WM_CLASS, I guess... Maybe we need to update this line, when using the shell script:

cryptomator/dist/linux/appimage/resources/AppDir/usr/share/applications/org.cryptomator.Cryptomator.desktop

Line 9 in da2d647

StartupWMClass=org.cryptomator.launcher.Cryptomator

I guess the problem was that you can not pass -Djdk.gtk.version=2 directly to the Cryptomator binary, right?

Edit: We might want to try --add-launcher in jpackage to build a GTK2 and GTK3 launcher. 🤔

[Anchor5178]

Same issue with the flatpak install.

Changing the StartupWMClass in the .desktop file to "java" fixes this issue.

[overheadhunter]

With #2139 merged, the WM_CLASS should now be org.cryptomator.launcher.Cryptomator$MainApp again.