Linux: setCurrentLanguageWithDbus() no longer works in Gnome 41+

[CheeseSucker]

Gnome has tightened the security around DBus and Eval: https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1970

For setting keyboard layout via DBus to work:

1. The user needs to enable unsafe mode for the session
2. The code need to be changed to ES module syntax:
   import('resource:///org/gnome/shell/ui/status/keyboard.js').then(m => m.getInputSourceManager().inputSources[" + QString::number(group) + "].activate())

Synergy Version

Synergy 3 RC3 - v3.0.79.1-rc3

Steps to Reproduce

1. Client: Enable "Use the primary computer's keyboard layout"
2. Client: Add two keyboard layouts, one of them should be the same as the server's layout
3. Client: Activate the keyboard layout that is different from the server's layout
4. Restart the client
5. Press a key on the server, and a warning should be logged.

Logs

synergy-core     [2024-03-31T12:48:15] - WARNING - keyboard layout fail. Reply is unexpected!

[nbolton]

Thanks, seems to be in a similar vein to https://github.com/symless/synergy/issues/7342. I will look into this when I can.