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nixpkgs/nixos/modules/services/x11/display-managers/lightdm-greeters/gtk.nix
2015-12-11 18:31:00 +01:00

122 lines
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Nix

{ config, lib, pkgs, ... }:
with lib;
let
dmcfg = config.services.xserver.displayManager;
ldmcfg = dmcfg.lightdm;
cfg = ldmcfg.greeters.gtk;
inherit (pkgs) stdenv lightdm writeScript writeText;
theme = cfg.theme.package;
icons = cfg.iconTheme.package;
# The default greeter provided with this expression is the GTK greeter.
# Again, we need a few things in the environment for the greeter to run with
# fonts/icons.
wrappedGtkGreeter = stdenv.mkDerivation {
name = "lightdm-gtk-greeter";
buildInputs = [ pkgs.makeWrapper ];
buildCommand = ''
# This wrapper ensures that we actually get themes
makeWrapper ${pkgs.lightdm_gtk_greeter}/sbin/lightdm-gtk-greeter \
$out/greeter \
--prefix PATH : "${pkgs.glibc.bin}/bin" \
--set GDK_PIXBUF_MODULE_FILE "${pkgs.gdk_pixbuf.out}/lib/gdk-pixbuf-2.0/2.10.0/loaders.cache" \
--set GTK_PATH "${theme}:${pkgs.gtk3.out}" \
--set GTK_EXE_PREFIX "${theme}" \
--set GTK_DATA_PREFIX "${theme}" \
--set XDG_DATA_DIRS "${theme}/share:${icons}/share" \
--set XDG_CONFIG_HOME "${theme}/share"
cat - > $out/lightdm-gtk-greeter.desktop << EOF
[Desktop Entry]
Name=LightDM Greeter
Comment=This runs the LightDM Greeter
Exec=$out/greeter
Type=Application
EOF
'';
};
gtkGreeterConf = writeText "lightdm-gtk-greeter.conf"
''
[greeter]
theme-name = ${cfg.theme.name}
icon-theme-name = ${cfg.iconTheme.name}
background = ${ldmcfg.background}
'';
in
{
options = {
services.xserver.displayManager.lightdm.greeters.gtk = {
enable = mkOption {
type = types.bool;
default = true;
description = ''
Whether to enable lightdm-gtk-greeter as the lightdm greeter.
'';
};
theme = {
package = mkOption {
type = types.path;
default = pkgs.gnome3.gnome_themes_standard;
description = ''
The package path that contains the theme given in the name option.
'';
};
name = mkOption {
type = types.str;
default = "Adwaita";
description = ''
Name of the theme to use for the lightdm-gtk-greeter.
'';
};
};
iconTheme = {
package = mkOption {
type = types.path;
default = pkgs.gnome3.defaultIconTheme;
description = ''
The package path that contains the icon theme given in the name option.
'';
};
name = mkOption {
type = types.str;
default = "Adwaita";
description = ''
Name of the icon theme to use for the lightdm-gtk-greeter.
'';
};
};
};
};
config = mkIf (ldmcfg.enable && cfg.enable) {
services.xserver.displayManager.lightdm.greeter = mkDefault {
package = wrappedGtkGreeter;
name = "lightdm-gtk-greeter";
};
environment.etc."lightdm/lightdm-gtk-greeter.conf".source = gtkGreeterConf;
};
}