forked from mirrors/nixpkgs
294 lines
8.2 KiB
Nix
294 lines
8.2 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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with builtins;
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let
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cfg = config.services.picom;
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pairOf = x: with types; addCheck (listOf x) (y: length y == 2);
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floatBetween = a: b: with lib; with types;
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addCheck str (x: versionAtLeast x a && versionOlder x b);
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toConf = attrs: concatStringsSep "\n"
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(mapAttrsToList
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(k: v: let
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sep = if isAttrs v then ":" else "=";
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# Basically a tinkered lib.generators.mkKeyValueDefault
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mkValueString = v:
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if isBool v then boolToString v
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else if isInt v then toString v
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else if isFloat v then toString v
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else if isString v then ''"${escape [ ''"'' ] v}"''
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else if isList v then "[ "
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+ concatMapStringsSep " , " mkValueString v
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+ " ]"
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else if isAttrs v then "{ "
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+ concatStringsSep " "
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(mapAttrsToList
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(key: value: "${toString key}=${mkValueString value};")
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v)
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+ " }"
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else abort "picom.mkValueString: unexpected type (v = ${v})";
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in "${escape [ sep ] k}${sep}${mkValueString v};")
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attrs);
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configFile = pkgs.writeText "picom.conf" (toConf cfg.settings);
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in {
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imports = [
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(mkAliasOptionModule [ "services" "compton" ] [ "services" "picom" ])
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];
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options.services.picom = {
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enable = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Whether of not to enable Picom as the X.org composite manager.
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'';
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};
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fade = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Fade windows in and out.
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'';
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};
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fadeDelta = mkOption {
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type = types.addCheck types.int (x: x > 0);
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default = 10;
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example = 5;
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description = ''
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Time between fade animation step (in ms).
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'';
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};
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fadeSteps = mkOption {
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type = pairOf (floatBetween "0.01" "1.01");
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default = [ "0.028" "0.03" ];
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example = [ "0.04" "0.04" ];
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description = ''
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Opacity change between fade steps (in and out).
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(numbers in range 0.01 - 1.0)
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'';
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};
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fadeExclude = mkOption {
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type = types.listOf types.str;
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default = [];
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example = [
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"window_type *= 'menu'"
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"name ~= 'Firefox$'"
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"focused = 1"
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];
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description = ''
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List of conditions of windows that should not be faded.
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See <literal>picom(1)</literal> man page for more examples.
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'';
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};
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shadow = mkOption {
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type = types.bool;
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default = false;
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description = ''
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Draw window shadows.
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'';
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};
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shadowOffsets = mkOption {
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type = pairOf types.int;
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default = [ (-15) (-15) ];
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example = [ (-10) (-15) ];
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description = ''
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Left and right offset for shadows (in pixels).
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'';
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};
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shadowOpacity = mkOption {
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type = floatBetween "0.0" "1.01";
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default = "0.75";
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example = "0.8";
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description = ''
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Window shadows opacity (number in range 0.0 - 1.0).
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'';
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};
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shadowExclude = mkOption {
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type = types.listOf types.str;
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default = [];
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example = [
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"window_type *= 'menu'"
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"name ~= 'Firefox$'"
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"focused = 1"
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];
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description = ''
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List of conditions of windows that should have no shadow.
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See <literal>picom(1)</literal> man page for more examples.
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'';
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};
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activeOpacity = mkOption {
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type = floatBetween "0.0" "1.01";
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default = "1.0";
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example = "0.8";
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description = ''
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Opacity of active windows (number in range 0.0 - 1.0).
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'';
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};
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inactiveOpacity = mkOption {
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type = floatBetween "0.1" "1.01";
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default = "1.0";
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example = "0.8";
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description = ''
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Opacity of inactive windows (number in range 0.1 - 1.0).
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'';
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};
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menuOpacity = mkOption {
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type = floatBetween "0.0" "1.01";
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default = "1.0";
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example = "0.8";
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description = ''
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Opacity of dropdown and popup menu (number in range 0.0 - 1.0).
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'';
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};
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wintypes = mkOption {
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type = types.attrs;
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default = { popup_menu = { opacity = cfg.menuOpacity; }; dropdown_menu = { opacity = cfg.menuOpacity; }; };
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example = {};
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description = ''
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Rules for specific window types.
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'';
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};
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opacityRules = mkOption {
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type = types.listOf types.str;
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default = [];
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example = [
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"95:class_g = 'URxvt' && !_NET_WM_STATE@:32a"
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"0:_NET_WM_STATE@:32a *= '_NET_WM_STATE_HIDDEN'"
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];
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description = ''
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Rules that control the opacity of windows, in format PERCENT:PATTERN.
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'';
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};
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backend = mkOption {
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type = types.enum [ "glx" "xrender" "xr_glx_hybrid" ];
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default = "xrender";
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description = ''
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Backend to use: <literal>glx</literal>, <literal>xrender</literal> or <literal>xr_glx_hybrid</literal>.
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'';
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};
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vSync = mkOption {
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type = with types; either bool
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(enum [ "none" "drm" "opengl" "opengl-oml" "opengl-swc" "opengl-mswc" ]);
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default = false;
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apply = x:
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let
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res = x != "none";
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msg = "The type of services.picom.vSync has changed to bool:"
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+ " interpreting ${x} as ${boolToString res}";
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in
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if isBool x then x
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else warn msg res;
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description = ''
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Enable vertical synchronization. Chooses the best method
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(drm, opengl, opengl-oml, opengl-swc, opengl-mswc) automatically.
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The bool value should be used, the others are just for backwards compatibility.
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'';
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};
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refreshRate = mkOption {
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type = types.addCheck types.int (x: x >= 0);
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default = 0;
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example = 60;
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description = ''
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Screen refresh rate (0 = automatically detect).
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'';
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};
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settings = let
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configTypes = with types; oneOf [ bool int float str ];
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# types.loaOf converts lists to sets
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loaOf = t: with types; either (listOf t) (attrsOf t);
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in mkOption {
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type = loaOf (types.either configTypes (loaOf (types.either configTypes (loaOf configTypes))));
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default = {};
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description = ''
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Additional Picom configuration.
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'';
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};
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};
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config = mkIf cfg.enable {
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services.picom.settings = let
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# Hard conversion to float, literally lib.toInt but toFloat
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toFloat = str: let
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may_be_float = builtins.fromJSON str;
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in if builtins.isFloat may_be_float
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then may_be_float
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else throw "Could not convert ${str} to float.";
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in {
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# fading
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fading = mkDefault cfg.fade;
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fade-delta = mkDefault cfg.fadeDelta;
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fade-in-step = mkDefault (toFloat (elemAt cfg.fadeSteps 0));
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fade-out-step = mkDefault (toFloat (elemAt cfg.fadeSteps 1));
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fade-exclude = mkDefault cfg.fadeExclude;
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# shadows
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shadow = mkDefault cfg.shadow;
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shadow-offset-x = mkDefault (elemAt cfg.shadowOffsets 0);
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shadow-offset-y = mkDefault (elemAt cfg.shadowOffsets 1);
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shadow-opacity = mkDefault (toFloat cfg.shadowOpacity);
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shadow-exclude = mkDefault cfg.shadowExclude;
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# opacity
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active-opacity = mkDefault (toFloat cfg.activeOpacity);
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inactive-opacity = mkDefault (toFloat cfg.inactiveOpacity);
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wintypes = mkDefault cfg.wintypes;
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opacity-rule = mkDefault cfg.opacityRules;
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# other options
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backend = mkDefault cfg.backend;
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vsync = mkDefault cfg.vSync;
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refresh-rate = mkDefault cfg.refreshRate;
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};
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systemd.user.services.picom = {
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description = "Picom composite manager";
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wantedBy = [ "graphical-session.target" ];
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partOf = [ "graphical-session.target" ];
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# Temporarily fixes corrupt colours with Mesa 18
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environment = mkIf (cfg.backend == "glx") {
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allow_rgb10_configs = "false";
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};
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serviceConfig = {
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ExecStart = "${pkgs.picom}/bin/picom --config ${configFile}";
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RestartSec = 3;
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Restart = "always";
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};
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};
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environment.systemPackages = [ pkgs.picom ];
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};
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meta.maintainers = with lib.maintainers; [ rnhmjoj ];
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}
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