75 lines
1.7 KiB
Nix
75 lines
1.7 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.random-background;
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in
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{
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options = {
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services.random-background = {
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enable = mkEnableOption "random desktop background";
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imageDirectory = mkOption {
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type = types.str;
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description =
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''
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The directory of images from which a background should be
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chosen. Should be formatted in a way understood by
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systemd, e.g., '%h' is the home directory.
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'';
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};
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interval = mkOption {
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default = null;
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type = types.nullOr types.str;
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description = ''
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The duration between changing background image, set to null
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to only set background when logging in.
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Should be formatted as a duration understood by systemd.
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'';
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};
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};
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};
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config = mkIf cfg.enable (
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mkMerge ([
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{
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systemd.user.services.random-background = {
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Unit = {
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Description = "Set random desktop background using feh";
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};
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Service = {
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Type = "oneshot";
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ExecStart = "${pkgs.feh}/bin/feh --randomize --bg-fill %h/backgrounds/";
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IOSchedulingClass = "idle";
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};
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Install = {
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WantedBy = [ "xorg.target" ];
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};
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};
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}
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(mkIf (cfg.interval != null) {
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systemd.user.timers.random-background = {
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Unit = {
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Description = "Set random desktop background using feh";
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};
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Timer = {
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OnUnitActiveSec = cfg.interval;
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};
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Install = {
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WantedBy = [ "timers.target" ];
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};
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};
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})
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]));
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}
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