nixpkgs/nixos/modules/config/xdg/icons.nix

64 lines
1.9 KiB
Nix

{ config, lib, pkgs, ... }:
{
meta = {
maintainers = lib.teams.freedesktop.members;
};
options = {
xdg.icons.enable = lib.mkOption {
type = lib.types.bool;
default = true;
description = ''
Whether to install files to support the
[XDG Icon Theme specification](https://specifications.freedesktop.org/icon-theme-spec/icon-theme-spec-latest.html).
'';
};
xdg.icons.fallbackCursorThemes = lib.mkOption {
type = lib.types.listOf lib.types.str;
default = [];
description = ''
Names of the fallback cursor themes, in order of preference, to be used when no other icon source can be found.
Set to `[]` to disable the fallback entirely.
'';
};
};
config = lib.mkIf config.xdg.icons.enable {
environment.pathsToLink = [
"/share/icons"
"/share/pixmaps"
];
environment.systemPackages = [
# Empty icon theme that contains index.theme file describing directories
# where toolkits should look for icons installed by apps.
pkgs.hicolor-icon-theme
] ++ lib.optionals (config.xdg.icons.fallbackCursorThemes != []) [
(pkgs.writeTextFile {
name = "fallback-cursor-theme";
text = ''
[Icon Theme]
Inherits=${lib.concatStringsSep "," config.xdg.icons.fallbackCursorThemes}
'';
destination = "/share/icons/default/index.theme";
})
];
# libXcursor looks for cursors in XCURSOR_PATH
# it mostly follows the spec for icons
# See: https://www.x.org/releases/current/doc/man/man3/Xcursor.3.xhtml Themes
# These are preferred so they come first in the list
environment.sessionVariables.XCURSOR_PATH = [
"$HOME/.icons"
"$HOME/.local/share/icons"
];
environment.profileRelativeSessionVariables.XCURSOR_PATH = [
"/share/icons"
"/share/pixmaps"
];
};
}