385 lines
9.1 KiB
Nix
385 lines
9.1 KiB
Nix
{
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config,
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lib,
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options,
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pkgs,
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...
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}:
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with lib;
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let
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cfg = config.services.picom;
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opt = options.services.picom;
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pairOf =
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x:
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with types;
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addCheck (listOf x) (y: length y == 2) // { description = "pair of ${x.description}"; };
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mkDefaultAttrs = mapAttrs (n: v: mkDefault v);
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# Basically a tinkered lib.generators.mkKeyValueDefault
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# It either serializes a top-level definition "key: { values };"
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# or an expression "key = { values };"
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mkAttrsString =
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top:
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mapAttrsToList (
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k: v:
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let
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sep = if (top && isAttrs v) then ":" else "=";
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in
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"${escape [ sep ] k}${sep}${mkValueString v};"
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);
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# This serializes a Nix expression to the libconfig format.
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mkValueString =
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v:
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if types.bool.check v then
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boolToString v
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else if types.int.check v then
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toString v
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else if types.float.check v then
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toString v
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else if types.str.check v then
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"\"${escape [ "\"" ] v}\""
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else if builtins.isList v then
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"[ ${concatMapStringsSep " , " mkValueString v} ]"
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else if types.attrs.check v then
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"{ ${concatStringsSep " " (mkAttrsString false v)} }"
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else
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throw ''
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invalid expression used in option services.picom.settings:
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${v}
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'';
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toConf = attrs: concatStringsSep "\n" (mkAttrsString true cfg.settings);
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configFile = pkgs.writeText "picom.conf" (toConf cfg.settings);
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in
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{
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imports = [
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(mkAliasOptionModuleMD [ "services" "compton" ] [ "services" "picom" ])
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(mkRemovedOptionModule [ "services" "picom" "refreshRate" ] ''
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This option corresponds to `refresh-rate`, which has been unused
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since picom v6 and was subsequently removed by upstream.
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See https://github.com/yshui/picom/commit/bcbc410
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'')
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(mkRemovedOptionModule [ "services" "picom" "experimentalBackends" ] ''
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This option was removed by upstream since picom v10.
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'')
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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 or not to enable Picom as the X.org composite manager.
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'';
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};
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package = mkPackageOption pkgs "picom" { };
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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.ints.positive;
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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 (types.numbers.between 0.01 1);
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default = [
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0.028
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0.03
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];
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example = [
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0.04
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0.04
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];
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description = ''
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Opacity change between fade steps (in and out).
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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 `picom(1)` 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 = [
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(-15)
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(-15)
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];
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example = [
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(-10)
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(-15)
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];
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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 = types.numbers.between 0 1;
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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.
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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 `picom(1)` man page for more examples.
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'';
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};
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activeOpacity = mkOption {
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type = types.numbers.between 0 1;
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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.
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'';
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};
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inactiveOpacity = mkOption {
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type = types.numbers.between 0.1 1;
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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.
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'';
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};
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menuOpacity = mkOption {
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type = types.numbers.between 0 1;
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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.
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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 = {
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popup_menu = {
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opacity = cfg.menuOpacity;
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};
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dropdown_menu = {
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opacity = cfg.menuOpacity;
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};
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};
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defaultText = literalExpression ''
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{
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popup_menu = { opacity = config.${opt.menuOpacity}; };
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dropdown_menu = { opacity = config.${opt.menuOpacity}; };
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}
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'';
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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 [
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"egl"
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"glx"
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"xrender"
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"xr_glx_hybrid"
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];
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default = "xrender";
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description = ''
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Backend to use: `egl`, `glx`, `xrender` or `xr_glx_hybrid`.
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'';
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};
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vSync = mkOption {
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type =
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with types;
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either bool (enum [
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"none"
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"drm"
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"opengl"
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"opengl-oml"
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"opengl-swc"
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"opengl-mswc"
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]);
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default = false;
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apply =
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x:
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let
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res = x != "none";
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msg =
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"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 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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settings =
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with types;
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let
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scalar =
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oneOf [
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bool
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int
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float
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str
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]
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// {
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description = "scalar types";
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};
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libConfig =
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oneOf [
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scalar
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(listOf libConfig)
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(attrsOf libConfig)
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]
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// {
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description = "libconfig type";
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};
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topLevel = attrsOf libConfig // {
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description = ''
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libconfig configuration. The format consists of an attributes
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set (called a group) of settings. Each setting can be a scalar type
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(boolean, integer, floating point number or string), a list of
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scalars or a group itself
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'';
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};
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in
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mkOption {
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type = topLevel;
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default = { };
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example = literalExpression ''
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blur =
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{ method = "gaussian";
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size = 10;
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deviation = 5.0;
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};
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'';
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description = ''
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Picom settings. Use this option to configure Picom settings not exposed
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in a NixOS option or to bypass one. For the available options see the
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CONFIGURATION FILES section at `picom(1)`.
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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 = mkDefaultAttrs {
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# fading
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fading = cfg.fade;
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fade-delta = cfg.fadeDelta;
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fade-in-step = elemAt cfg.fadeSteps 0;
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fade-out-step = elemAt cfg.fadeSteps 1;
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fade-exclude = cfg.fadeExclude;
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# shadows
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shadow = cfg.shadow;
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shadow-offset-x = elemAt cfg.shadowOffsets 0;
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shadow-offset-y = elemAt cfg.shadowOffsets 1;
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shadow-opacity = cfg.shadowOpacity;
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shadow-exclude = cfg.shadowExclude;
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# opacity
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active-opacity = cfg.activeOpacity;
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inactive-opacity = cfg.inactiveOpacity;
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wintypes = cfg.wintypes;
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opacity-rule = cfg.opacityRules;
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# other options
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backend = cfg.backend;
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vsync = cfg.vSync;
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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 = "${getExe cfg.package} --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 = [ cfg.package ];
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};
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meta.maintainers = with lib.maintainers; [ rnhmjoj ];
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}
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