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{ config, lib, pkgs, ... }:
with lib;
let
dmcfg = config.services.xserver.displayManager;
ldmcfg = dmcfg.lightdm;
cfg = ldmcfg.greeters.pantheon;
xgreeters = pkgs.linkFarm "pantheon-greeter-xgreeters" [{
path = "${pkgs.pantheon.elementary-greeter}/share/xgreeters/io.elementary.greeter.desktop";
name = "io.elementary.greeter.desktop";
}];
in
{
options = {
services.xserver.displayManager.lightdm.greeters.pantheon = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Whether to enable elementary-greeter as the lightdm greeter.
'';
};
};
};
config = mkIf (ldmcfg.enable && cfg.enable) {
warnings = [
''
The Pantheon greeter is suboptimal in NixOS and can possibly put you in
a situation where you cannot start a session when switching desktopManagers.
''
];
services.xserver.displayManager.lightdm.greeters.gtk.enable = false;
services.xserver.displayManager.lightdm.greeter = mkDefault {
package = xgreeters;
name = "io.elementary.greeter";
};
environment.etc."lightdm/io.elementary.greeter.conf".source = "${pkgs.pantheon.elementary-greeter}/etc/lightdm/io.elementary.greeter.conf";
environment.etc."wingpanel.d/io.elementary.greeter.whitelist".source = "${pkgs.pantheon.elementary-default-settings}/etc/wingpanel.d/io.elementary.greeter.whitelist";
};
}
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