Permit i3 to stop an application from adding its icon to the tray

[Maritims]

Welcome

• Yes, I've searched similar issues and discussions on GitHub and didn't find any.

Impact

• This feature requires new configuration and/or commands

Current Behavior

Currently i3 will allow any application to add its icon to the tray. The only way to prevent this is by using tray_output none.

Desired Behavior

Not all applications out there will provide the user with the opportunity to not add its icon to the tray, so it could be nice to get to stop some applications from adding their icon by adding a directive to the i3 config per application.

The following example would refuse the request from VLC and Slack to put their icons in the tray:

bar {
    banned_wm_class vlc
    banned_wm_class slack
}

I have already implemented this in a fork which can be inspected here: https://github.com/Maritims/i3

i3 version

Binary i3 version:  4.23 © 2009 Michael Stapelberg and contributors

[i3bot]

Please note that new features which require additional configuration will usually not be considered. We are happy with the feature set of i3 and want to focus in fixing bugs instead. We do accept feature requests, however, and will evaluate whether the added benefit (clearly) outweighs the complexity it adds to i3.

Keep in mind that i3 provides a powerful way to interact with it through its IPC interface: https://i3wm.org/docs/ipc.html.