Application name Problem

[Jan-Marek Glogowski]

Am 22.04.21 um 16:27 schrieb T. G.:
> If i compile libreoffice with GTK3 and start it with ./soffice --writer, 
> then if i open calc with ./soffice --calc it opens calc windows but 
> selects writer in linux dock(only writer app icons is available).
> Exactly same happens on FreeBSD.
> But on ubuntu libreoffice package works fine.
> thanks in advance.

This is probably the result of the way LibreOffice handles WM_CLASS. You 
can read up on it in

https://bugs.documentfoundation.org/show_bug.cgi?id=141106
https://bugs.documentfoundation.org/show_bug.cgi?id=125921
https://bugs.documentfoundation.org/show_bug.cgi?id=119202

TL;DR

LO is a single binary with multiple modules, which have their own icon. 
The WM_CLASS value is normally used by the DE for window grouping and 
"dock" icons, but according to the ICCCM specs, it's static (formally, 
not in the protocol) after a Window is created.

The best fix would be to amend the spec. The currently "correct" fix 
would be to destroy and rebuild the application window, if you use a 
different module. LO breaks the spec by just changing that value on demand.

HTH