fractalart service: init, Generate wallpapers (#23231)

* Add a service for generating wallpapers
This service will generate a new wallpaper using the "FractalArt" haskell package.

Changed files
+37
nixos
modules
+1
nixos/modules/module-list.nix
···
./services/x11/display-managers/sddm.nix
./services/x11/display-managers/slim.nix
./services/x11/display-managers/xpra.nix
+
./services/x11/fractalart.nix
./services/x11/hardware/libinput.nix
./services/x11/hardware/multitouch.nix
./services/x11/hardware/synaptics.nix
+36
nixos/modules/services/x11/fractalart.nix
···
+
{ config, lib, pkgs, ... }:
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with lib;
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let
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cfg = config.services.fractalart;
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in {
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options.services.fractalart = {
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enable = mkOption {
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type = types.bool;
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default = false;
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example = true;
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description = "Enable FractalArt for generating colorful wallpapers on login";
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};
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width = mkOption {
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type = types.nullOr types.int;
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default = null;
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example = 1920;
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description = "Screen width";
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};
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height = mkOption {
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type = types.nullOr types.int;
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default = null;
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example = 1080;
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description = "Screen height";
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};
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};
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config = mkIf cfg.enable {
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environment.systemPackages = [ pkgs.haskellPackages.FractalArt ];
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services.xserver.displayManager.sessionCommands =
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"${pkgs.haskellPackages.FractalArt}/bin/FractalArt --no-bg -f .background-image"
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+ optionalString (cfg.width != null) " -w ${toString cfg.width}"
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+ optionalString (cfg.height != null) " -h ${toString cfg.height}";
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};
+
}