home-manager/modules/xcursor.nix
Robert Helgesson 5f433eb164
Move platform check into modules
Before, loading a module would be guarded by an optional platform
condition. This made it possible to avoid loading and evaluating a
module if it did not support the host platform.

Unfortunately, this made it impossible to share a single configuration
between GNU/Linux and Darwin hosts, which some wish to do.

This removes the conditional load and instead inserts host platform
assertions in the modules that are platform specific.

Fixes #1906
2021-07-18 20:43:22 +02:00

96 lines
2.4 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.xsession.pointerCursor;
cursorType = types.submodule {
options = {
package = mkOption {
type = types.package;
example = literalExample "pkgs.vanilla-dmz";
description = "Package providing the cursor theme.";
};
name = mkOption {
type = types.str;
example = "Vanilla-DMZ";
description = "The cursor name within the package.";
};
size = mkOption {
type = types.int;
default = 32;
example = 64;
description = "The cursor size.";
};
defaultCursor = mkOption {
type = types.str;
default = "left_ptr";
example = "X_cursor";
description = "The default cursor file to use within the package.";
};
};
};
in {
meta.maintainers = [ maintainers.league ];
options = {
xsession.pointerCursor = mkOption {
type = types.nullOr cursorType;
default = null;
description = ''
The X cursor theme and settings. The package
<varname>xorg.xcursorthemes</varname> contains cursors named
whiteglass, redglass, and handhelds. The package
<varname>vanilla-dmz</varname> contains cursors named Vanilla-DMZ
and Vanilla-DMZ-AA. Note: handhelds does not seem to work at
custom sizes.
'';
};
};
config = mkIf (cfg != null) {
assertions = [
(hm.assertions.assertPlatform "xsession.pointerCursor" pkgs
platforms.linux)
];
home.packages = [ cfg.package ];
xsession.initExtra = ''
${pkgs.xorg.xsetroot}/bin/xsetroot -xcf ${cfg.package}/share/icons/${cfg.name}/cursors/${cfg.defaultCursor} ${
toString cfg.size
}
'';
xresources.properties = {
"Xcursor.theme" = cfg.name;
"Xcursor.size" = cfg.size;
};
gtk.gtk2.extraConfig = ''
gtk-cursor-theme-name="${cfg.name}"
gtk-cursor-theme-size=${toString cfg.size}
'';
gtk.gtk3.extraConfig = {
"gtk-cursor-theme-name" = cfg.name;
"gtk-cursor-theme-size" = cfg.size;
};
# Set name in icons theme, for compatibility with AwesomeWM etc. See:
# https://github.com/nix-community/home-manager/issues/2081
# https://wiki.archlinux.org/title/Cursor_themes#XDG_specification
home.file.".icons/default/index.theme".text = ''
[icon theme]
Name=Default
Comment=Default Cursor Theme
Inherits=${cfg.name}
'';
};
}