How does gnome-shell / dash-to-dock choose an icon for running java application (Talend)

Asked Apr 16 '20 at 08:52

Active Apr 25 '20 at 19:34

Viewed 11 times

I have installed Talend Open Studio by simply unzipping the archive in my home folder. The application is launched via a shell script. Then I created a desktop file :

[Desktop Entry]
Name=Talend Open Studio
Comment=ETL
Exec=/home/franck/devel/outils/TOS/TOS_DI-linux-gtk-x86.sh
Path=/home/franck/devel/outils/TOS/
Terminal=false
Icon=/home/franck/devel/outils/TOS/24_talend-icon.svg
Type=Application
Categories=Development;ETL

I put it in ~/.local/share/applications/tos.desktop Finally I added the launcher to my favorite apps, so it stays in my dash-to-dock bar (Ubuntu Dock).

Now when I click on the icon (second on screenshot), TOS launches, but another icon (fourth) pops up for the running application; instead of the custom icon I put in my .desktop file, I get another (pixelized) icon.

So here are my questions:

how does gnome-shell affect an icon to a running application?
where does it find a suitable icon? (a poor one in my case)
how can I force it to take my .desktop icon?
ideally, it would not show two icons while running (the launcher and the running one). What mechanism is implied here?

edited Apr 25 '20 at 19:34

pomsky

68,507

asked Apr 16 '20 at 08:52

alci

5,839

is your OS 16.04? – PRATAP Apr 16 '20 at 08:59
No, it's 20.04 under a Gnome Xorg session, with Dash-to-dock plugin. – alci Apr 16 '20 at 09:00
1

then unity-dash?? did you install unity?? – PRATAP Apr 16 '20 at 09:00
https://askubuntu.com/a/591341/739431 – PRATAP Apr 16 '20 at 09:03
This is not exactly my problem. When I search for Talend, only my custom launcher is shown. It's only when running that another icon appears... – alci Apr 16 '20 at 09:05
0h sorry then.. but did u install Unity?? – PRATAP Apr 16 '20 at 09:06
No, it's gnome-shell – alci Apr 16 '20 at 09:18
found the solution in this question https://askubuntu.com/questions/726351/use-desktop-icon-for-running-application (but still don't know how gnome found the old pixelised icon...) – alci Apr 16 '20 at 09:56
is it a snap app.. how did u install it. – PRATAP Apr 16 '20 at 09:58
Let us continue this discussion in chat. – alci Apr 16 '20 at 09:59
1

You need to add a proper StartupWMClass entry. – pomsky Apr 16 '20 at 11:28

How does gnome-shell / dash-to-dock choose an icon for running java application (Talend)

0 Answers0