1 files changed, 60 insertions, 0 deletions
diff --git a/nixos/modules/services/x11/hardware/multitouch.nix b/nixos/modules/services/x11/hardware/multitouch.nix
new file mode 100644
index 00000000000..4f9048bfd91
--- /dev/null
+++ b/nixos/modules/services/x11/hardware/multitouch.nix
@@ -0,0 +1,60 @@
+{ config, pkgs, ... }:
+
+with pkgs.lib;
+
+let cfg = config.services.xserver.multitouch; in
+
+{
+
+  options = {
+
+    services.xserver.multitouch = {
+
+      enable = mkOption {
+        default = false;
+        example = true;
+        description = "Whether to enable multitouch touchpad support.";
+      };
+
+      invertScroll = mkOption {
+        default = false;
+        example = true;
+        type = types.bool;
+        description = "Whether to invert scrolling direction à la OSX Lion";
+      };
+
+      ignorePalm = mkOption {
+        default = false;
+        example = true;
+        type = types.bool;
+        description = "Whether to ignore touches detected as being the palm (i.e when typing)";
+      };
+
+    };
+
+  };
+
+  config = mkIf cfg.enable {
+
+    services.xserver.modules = [ pkgs.xf86_input_mtrack ];
+
+    services.xserver.config =
+      ''
+        # Automatically enable the multitouch driver
+        Section "InputClass"
+          MatchIsTouchpad "on"
+          Identifier "Touchpads"
+          Driver "mtrack"
+          Option "IgnorePalm" "${if cfg.ignorePalm then "true" else "false"}"
+          ${optionalString cfg.invertScroll ''
+            Option "ScrollUpButton" "5"
+            Option "ScrollDownButton" "4"
+            Option "ScrollLeftButton" "7"
+            Option "ScrollRightButton" "6"
+          ''}
+        EndSection
+      '';
+
+  };
+
+}