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|
{ config, lib, pkgs, ... }:
with lib;
let cfg = config.services.xserver.synaptics;
tapConfig = if cfg.tapButtons then enabledTapConfig else disabledTapConfig;
enabledTapConfig = ''
Option "MaxTapTime" "180"
Option "MaxTapMove" "220"
Option "TapButton1" "${builtins.elemAt cfg.fingersMap 0}"
Option "TapButton2" "${builtins.elemAt cfg.fingersMap 1}"
Option "TapButton3" "${builtins.elemAt cfg.fingersMap 2}"
'';
disabledTapConfig = ''
Option "MaxTapTime" "0"
Option "MaxTapMove" "0"
Option "TapButton1" "0"
Option "TapButton2" "0"
Option "TapButton3" "0"
'';
pkg = pkgs.xorg.xf86inputsynaptics;
etcFile = "X11/xorg.conf.d/70-synaptics.conf";
in {
options = {
services.xserver.synaptics = {
enable = mkOption {
type = types.bool;
default = false;
description = "Whether to enable touchpad support. Deprecated: Consider services.xserver.libinput.enable.";
};
dev = mkOption {
type = types.nullOr types.str;
default = null;
example = "/dev/input/event0";
description =
''
Path for touchpad device. Set to null to apply to any
auto-detected touchpad.
'';
};
accelFactor = mkOption {
type = types.nullOr types.str;
default = "0.001";
description = "Cursor acceleration (how fast speed increases from minSpeed to maxSpeed).";
};
minSpeed = mkOption {
type = types.nullOr types.str;
default = "0.6";
description = "Cursor speed factor for precision finger motion.";
};
maxSpeed = mkOption {
type = types.nullOr types.str;
default = "1.0";
description = "Cursor speed factor for highest-speed finger motion.";
};
scrollDelta = mkOption {
type = types.nullOr types.int;
default = null;
example = 75;
description = "Move distance of the finger for a scroll event.";
};
twoFingerScroll = mkOption {
type = types.bool;
default = false;
description = "Whether to enable two-finger drag-scrolling. Overridden by horizTwoFingerScroll and vertTwoFingerScroll.";
};
horizTwoFingerScroll = mkOption {
type = types.bool;
default = cfg.twoFingerScroll;
description = "Whether to enable horizontal two-finger drag-scrolling.";
};
vertTwoFingerScroll = mkOption {
type = types.bool;
default = cfg.twoFingerScroll;
description = "Whether to enable vertical two-finger drag-scrolling.";
};
horizEdgeScroll = mkOption {
type = types.bool;
default = ! cfg.horizTwoFingerScroll;
description = "Whether to enable horizontal edge drag-scrolling.";
};
vertEdgeScroll = mkOption {
type = types.bool;
default = ! cfg.vertTwoFingerScroll;
description = "Whether to enable vertical edge drag-scrolling.";
};
tapButtons = mkOption {
type = types.bool;
default = true;
description = "Whether to enable tap buttons.";
};
buttonsMap = mkOption {
type = types.listOf types.int;
default = [1 2 3];
example = [1 3 2];
description = "Remap touchpad buttons.";
apply = map toString;
};
fingersMap = mkOption {
type = types.listOf types.int;
default = [1 2 3];
example = [1 3 2];
description = "Remap several-fingers taps.";
apply = map toString;
};
palmDetect = mkOption {
type = types.bool;
default = false;
description = "Whether to enable palm detection (hardware support required)";
};
palmMinWidth = mkOption {
type = types.nullOr types.int;
default = null;
example = 5;
description = "Minimum finger width at which touch is considered a palm";
};
palmMinZ = mkOption {
type = types.nullOr types.int;
default = null;
example = 20;
description = "Minimum finger pressure at which touch is considered a palm";
};
horizontalScroll = mkOption {
type = types.bool;
default = true;
description = "Whether to enable horizontal scrolling (on touchpad)";
};
additionalOptions = mkOption {
type = types.str;
default = "";
example = ''
Option "RTCornerButton" "2"
Option "RBCornerButton" "3"
'';
description = ''
Additional options for synaptics touchpad driver.
'';
};
};
};
config = mkIf cfg.enable {
services.xserver.modules = [ pkg.out ];
environment.etc."${etcFile}".source =
"${pkg.out}/share/X11/xorg.conf.d/70-synaptics.conf";
environment.systemPackages = [ pkg ];
services.xserver.config =
''
# Automatically enable the synaptics driver for all touchpads.
Section "InputClass"
Identifier "synaptics touchpad catchall"
MatchIsTouchpad "on"
${optionalString (cfg.dev != null) ''MatchDevicePath "${cfg.dev}"''}
Driver "synaptics"
${optionalString (cfg.minSpeed != null) ''Option "MinSpeed" "${cfg.minSpeed}"''}
${optionalString (cfg.maxSpeed != null) ''Option "MaxSpeed" "${cfg.maxSpeed}"''}
${optionalString (cfg.accelFactor != null) ''Option "AccelFactor" "${cfg.accelFactor}"''}
${optionalString cfg.tapButtons tapConfig}
Option "ClickFinger1" "${builtins.elemAt cfg.buttonsMap 0}"
Option "ClickFinger2" "${builtins.elemAt cfg.buttonsMap 1}"
Option "ClickFinger3" "${builtins.elemAt cfg.buttonsMap 2}"
Option "VertTwoFingerScroll" "${if cfg.vertTwoFingerScroll then "1" else "0"}"
Option "HorizTwoFingerScroll" "${if cfg.horizTwoFingerScroll then "1" else "0"}"
Option "VertEdgeScroll" "${if cfg.vertEdgeScroll then "1" else "0"}"
Option "HorizEdgeScroll" "${if cfg.horizEdgeScroll then "1" else "0"}"
${optionalString cfg.palmDetect ''Option "PalmDetect" "1"''}
${optionalString (cfg.palmMinWidth != null) ''Option "PalmMinWidth" "${toString cfg.palmMinWidth}"''}
${optionalString (cfg.palmMinZ != null) ''Option "PalmMinZ" "${toString cfg.palmMinZ}"''}
${optionalString (cfg.scrollDelta != null) ''Option "VertScrollDelta" "${toString cfg.scrollDelta}"''}
${if !cfg.horizontalScroll then ''Option "HorizScrollDelta" "0"''
else (optionalString (cfg.scrollDelta != null) ''Option "HorizScrollDelta" "${toString cfg.scrollDelta}"'')}
${cfg.additionalOptions}
EndSection
'';
assertions = [
{
assertion = !config.services.xserver.libinput.enable;
message = "Synaptics and libinput are incompatible, you cannot enable both (in services.xserver).";
}
];
};
}
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