diff options
Diffstat (limited to 'nixpkgs/nixos/modules/services/x11/picom.nix')
| -rw-r--r-- | nixpkgs/nixos/modules/services/x11/picom.nix | 187 |
1 files changed, 105 insertions, 82 deletions
diff --git a/nixpkgs/nixos/modules/services/x11/picom.nix b/nixpkgs/nixos/modules/services/x11/picom.nix index e3bd21be73e..1289edd2904 100644 --- a/nixpkgs/nixos/modules/services/x11/picom.nix +++ b/nixpkgs/nixos/modules/services/x11/picom.nix @@ -1,39 +1,48 @@ { config, lib, pkgs, ... }: with lib; -with builtins; let cfg = config.services.picom; - pairOf = x: with types; addCheck (listOf x) (y: length y == 2); - - floatBetween = a: b: with lib; with types; - addCheck str (x: versionAtLeast x a && versionOlder x b); - - toConf = attrs: concatStringsSep "\n" - (mapAttrsToList - (k: v: let - sep = if isAttrs v then ":" else "="; - # Basically a tinkered lib.generators.mkKeyValueDefault - mkValueString = v: - if isBool v then boolToString v - else if isInt v then toString v - else if isFloat v then toString v - else if isString v then ''"${escape [ ''"'' ] v}"'' - else if isList v then "[ " - + concatMapStringsSep " , " mkValueString v - + " ]" - else if isAttrs v then "{ " - + concatStringsSep " " - (mapAttrsToList - (key: value: "${toString key}=${mkValueString value};") - v) - + " }" - else abort "picom.mkValueString: unexpected type (v = ${v})"; - in "${escape [ sep ] k}${sep}${mkValueString v};") - attrs); + pairOf = x: with types; + addCheck (listOf x) (y: length y == 2) + // { description = "pair of ${x.description}"; }; + + floatBetween = a: b: with types; + let + # toString prints floats with hardcoded high precision + floatToString = f: builtins.toJSON f; + in + addCheck float (x: x <= b && x >= a) + // { description = "a floating point number in " + + "range [${floatToString a}, ${floatToString b}]"; }; + + mkDefaultAttrs = mapAttrs (n: v: mkDefault v); + + # Basically a tinkered lib.generators.mkKeyValueDefault + # It either serializes a top-level definition "key: { values };" + # or an expression "key = { values };" + mkAttrsString = top: + mapAttrsToList (k: v: + let sep = if (top && isAttrs v) then ":" else "="; + in "${escape [ sep ] k}${sep}${mkValueString v};"); + + # This serializes a Nix expression to the libconfig format. + mkValueString = v: + if types.bool.check v then boolToString v + else if types.int.check v then toString v + else if types.float.check v then toString v + else if types.str.check v then "\"${escape [ "\"" ] v}\"" + else if builtins.isList v then "[ ${concatMapStringsSep " , " mkValueString v} ]" + else if types.attrs.check v then "{ ${concatStringsSep " " (mkAttrsString false v) } }" + else throw '' + invalid expression used in option services.picom.settings: + ${v} + ''; + + toConf = attrs: concatStringsSep "\n" (mkAttrsString true cfg.settings); configFile = pkgs.writeText "picom.conf" (toConf cfg.settings); @@ -61,7 +70,7 @@ in { }; fadeDelta = mkOption { - type = types.addCheck types.int (x: x > 0); + type = types.ints.positive; default = 10; example = 5; description = '' @@ -70,12 +79,11 @@ in { }; fadeSteps = mkOption { - type = pairOf (floatBetween "0.01" "1.01"); - default = [ "0.028" "0.03" ]; - example = [ "0.04" "0.04" ]; + type = pairOf (floatBetween 0.01 1); + default = [ 0.028 0.03 ]; + example = [ 0.04 0.04 ]; description = '' Opacity change between fade steps (in and out). - (numbers in range 0.01 - 1.0) ''; }; @@ -111,11 +119,11 @@ in { }; shadowOpacity = mkOption { - type = floatBetween "0.0" "1.01"; - default = "0.75"; - example = "0.8"; + type = floatBetween 0 1; + default = 0.75; + example = 0.8; description = '' - Window shadows opacity (number in range 0.0 - 1.0). + Window shadows opacity. ''; }; @@ -134,29 +142,29 @@ in { }; activeOpacity = mkOption { - type = floatBetween "0.0" "1.01"; - default = "1.0"; - example = "0.8"; + type = floatBetween 0 1; + default = 1.0; + example = 0.8; description = '' - Opacity of active windows (number in range 0.0 - 1.0). + Opacity of active windows. ''; }; inactiveOpacity = mkOption { - type = floatBetween "0.1" "1.01"; - default = "1.0"; - example = "0.8"; + type = floatBetween 0.1 1; + default = 1.0; + example = 0.8; description = '' - Opacity of inactive windows (number in range 0.1 - 1.0). + Opacity of inactive windows. ''; }; menuOpacity = mkOption { - type = floatBetween "0.0" "1.01"; - default = "1.0"; - example = "0.8"; + type = floatBetween 0 1; + default = 1.0; + example = 0.8; description = '' - Opacity of dropdown and popup menu (number in range 0.0 - 1.0). + Opacity of dropdown and popup menu. ''; }; @@ -210,7 +218,7 @@ in { }; refreshRate = mkOption { - type = types.addCheck types.int (x: x >= 0); + type = types.ints.unsigned; default = 0; example = 60; description = '' @@ -218,54 +226,69 @@ in { ''; }; - settings = let - configTypes = with types; oneOf [ bool int float str ]; - # types.loaOf converts lists to sets - loaOf = t: with types; either (listOf t) (attrsOf t); + settings = with types; + let + scalar = oneOf [ bool int float str ] + // { description = "scalar types"; }; + + libConfig = oneOf [ scalar (listOf libConfig) (attrsOf libConfig) ] + // { description = "libconfig type"; }; + + topLevel = attrsOf libConfig + // { description = '' + libconfig configuration. The format consists of an attributes + set (called a group) of settings. Each setting can be a scalar type + (boolean, integer, floating point number or string), a list of + scalars or a group itself + ''; + }; + in mkOption { - type = loaOf (types.either configTypes (loaOf (types.either configTypes (loaOf configTypes)))); - default = {}; + type = topLevel; + default = { }; + example = literalExample '' + blur = + { method = "gaussian"; + size = 10; + deviation = 5.0; + }; + ''; description = '' - Additional Picom configuration. + Picom settings. Use this option to configure Picom settings not exposed + in a NixOS option or to bypass one. For the available options see the + CONFIGURATION FILES section at <literal>picom(1)</literal>. ''; }; }; config = mkIf cfg.enable { - services.picom.settings = let - # Hard conversion to float, literally lib.toInt but toFloat - toFloat = str: let - may_be_float = builtins.fromJSON str; - in if builtins.isFloat may_be_float - then may_be_float - else throw "Could not convert ${str} to float."; - in { + services.picom.settings = mkDefaultAttrs { # fading - fading = mkDefault cfg.fade; - fade-delta = mkDefault cfg.fadeDelta; - fade-in-step = mkDefault (toFloat (elemAt cfg.fadeSteps 0)); - fade-out-step = mkDefault (toFloat (elemAt cfg.fadeSteps 1)); - fade-exclude = mkDefault cfg.fadeExclude; + fading = cfg.fade; + fade-delta = cfg.fadeDelta; + fade-in-step = elemAt cfg.fadeSteps 0; + fade-out-step = elemAt cfg.fadeSteps 1; + fade-exclude = cfg.fadeExclude; # shadows - shadow = mkDefault cfg.shadow; - shadow-offset-x = mkDefault (elemAt cfg.shadowOffsets 0); - shadow-offset-y = mkDefault (elemAt cfg.shadowOffsets 1); - shadow-opacity = mkDefault (toFloat cfg.shadowOpacity); - shadow-exclude = mkDefault cfg.shadowExclude; + shadow = cfg.shadow; + shadow-offset-x = elemAt cfg.shadowOffsets 0; + shadow-offset-y = elemAt cfg.shadowOffsets 1; + shadow-opacity = cfg.shadowOpacity; + shadow-exclude = cfg.shadowExclude; # opacity - active-opacity = mkDefault (toFloat cfg.activeOpacity); - inactive-opacity = mkDefault (toFloat cfg.inactiveOpacity); + active-opacity = cfg.activeOpacity; + inactive-opacity = cfg.inactiveOpacity; - wintypes = mkDefault cfg.wintypes; + wintypes = cfg.wintypes; - opacity-rule = mkDefault cfg.opacityRules; + opacity-rule = cfg.opacityRules; # other options - backend = mkDefault cfg.backend; - vsync = mkDefault cfg.vSync; - refresh-rate = mkDefault cfg.refreshRate; + backend = cfg.backend; + vsync = cfg.vSync; + refresh-rate = cfg.refreshRate; }; systemd.user.services.picom = { |