From b4af703fdf4de92ee767afe653808a647b931a61 Mon Sep 17 00:00:00 2001
From: Donovan Glover <donovan@dglover.co>
Date: Sat, 6 Apr 2024 10:42:07 -0400
Subject: [PATCH] meta: Merge dual-function-keys with hardware

Seems like an alright categorization for now since dual-function-keys
can be used without a desktop environment, although realistically the
tty is impractical for things like CJK.
---
 default.nix                    |  1 +
 modules/dual-function-keys.nix | 66 ---------------------------------
 modules/hardware.nix           | 67 ++++++++++++++++++++++++++++++++--
 3 files changed, 65 insertions(+), 69 deletions(-)
 delete mode 100644 modules/dual-function-keys.nix

diff --git a/default.nix b/default.nix
index 61ed5e8d..8224269e 100644
--- a/default.nix
+++ b/default.nix
@@ -14,6 +14,7 @@ in
 
   modules = {
     hardware = {
+      keyboardBinds = true;
       disableLaptopKeyboard = true;
       lidIgnore = true;
       powerIgnore = true;
diff --git a/modules/dual-function-keys.nix b/modules/dual-function-keys.nix
deleted file mode 100644
index ae24df52..00000000
--- a/modules/dual-function-keys.nix
+++ /dev/null
@@ -1,66 +0,0 @@
-{ pkgs, lib, ... }:
-
-let
-  inherit (lib) getExe singleton;
-  inherit (builtins) toJSON;
-  inherit (pkgs) interception-tools;
-  inherit (pkgs.interception-tools-plugins) dual-function-keys;
-
-  configFile = "dual-function-keys.yaml";
-in
-{
-  services.interception-tools = {
-    enable = true;
-    plugins = [ dual-function-keys ];
-
-    udevmonConfig = toJSON (singleton {
-      JOB = /* bash */ ''
-        ${interception-tools}/bin/intercept -g $DEVNODE |
-        ${getExe dual-function-keys} -c /etc/${configFile} |
-        ${interception-tools}/bin/uinput -d $DEVNODE
-      '';
-
-      DEVICE = {
-        EVENTS = {
-          EV_KEY = [ "KEY_CAPSLOCK" "KEY_ESC" ];
-        };
-      };
-    });
-  };
-
-  environment.etc.${configFile}.text = toJSON {
-    TIMING = [
-      { TAP_MILLISEC = 1000; }
-      { DOUBLE_TAP_MILLISEC = 0; }
-      { SYNTHETIC_KEYS_PAUSE_MILLISEC = 0; }
-    ];
-
-    MAPPINGS = [
-      {
-        KEY = "KEY_CAPSLOCK";
-        TAP = "KEY_ESC";
-        HOLD = "KEY_LEFTCTRL";
-      }
-      {
-        KEY = "KEY_SYSRQ";
-        TAP = "KEY_SYSRQ";
-        HOLD = "KEY_RIGHTMETA";
-      }
-      {
-        KEY = "KEY_LEFTMETA";
-        TAP = [ "KEY_LEFTMETA" "KEY_F1" ];
-        HOLD = "KEY_LEFTMETA";
-      }
-      {
-        KEY = "KEY_RIGHTSHIFT";
-        TAP = [ "KEY_LEFTMETA" "KEY_F2" ];
-        HOLD = "KEY_RIGHTSHIFT";
-      }
-      {
-        KEY = "KEY_RIGHTALT";
-        TAP = "KEY_GRAVE";
-        HOLD = "KEY_RIGHTALT";
-      }
-    ];
-  };
-}
diff --git a/modules/hardware.nix b/modules/hardware.nix
index 538ca6a4..252c32f4 100644
--- a/modules/hardware.nix
+++ b/modules/hardware.nix
@@ -1,20 +1,26 @@
 { pkgs, config, lib, ... }:
 
 let
-  inherit (lib) mkEnableOption mkIf;
-  inherit (pkgs) piper;
+  inherit (builtins) toJSON;
+  inherit (lib) mkEnableOption mkIf getExe singleton;
+  inherit (pkgs) piper interception-tools;
+  inherit (pkgs.interception-tools-plugins) dual-function-keys;
+  inherit (cfg) mouseSettings disableLaptopKeyboard lidIgnore powerIgnore keyboardBinds;
+
+  dualFunctionKeysConfig = "dual-function-keys.yaml";
 
   cfg = config.modules.hardware;
 in
 {
   options.modules.hardware = {
+    keyboardBinds = mkEnableOption "start button for rofi, caps lock as escape, etc.";
     mouseSettings = mkEnableOption "piper for gaming mice";
     disableLaptopKeyboard = mkEnableOption "udev rule to disable laptop keyboard";
     lidIgnore = mkEnableOption "ignoring the laptop lid on close";
     powerIgnore = mkEnableOption "ignoring the power button on press";
   };
 
-  config = with cfg; {
+  config = {
     services = {
       ratbagd.enable = mkIf mouseSettings true;
 
@@ -26,8 +32,63 @@ in
         lidSwitch = mkIf lidIgnore "ignore";
         extraConfig = mkIf powerIgnore "HandlePowerKey=ignore";
       };
+
+      interception-tools = {
+        enable = mkIf keyboardBinds true;
+        plugins = [ dual-function-keys ];
+
+        udevmonConfig = toJSON (singleton {
+          JOB = /* bash */ ''
+            ${interception-tools}/bin/intercept -g $DEVNODE |
+            ${getExe dual-function-keys} -c /etc/${dualFunctionKeysConfig} |
+            ${interception-tools}/bin/uinput -d $DEVNODE
+          '';
+
+          DEVICE = {
+            EVENTS = {
+              EV_KEY = [ "KEY_CAPSLOCK" "KEY_ESC" ];
+            };
+          };
+        });
+      };
     };
 
     environment.systemPackages = mkIf mouseSettings [ piper ];
+
+    environment.etc.${dualFunctionKeysConfig}.text = toJSON {
+      TIMING = [
+        { TAP_MILLISEC = 1000; }
+        { DOUBLE_TAP_MILLISEC = 0; }
+        { SYNTHETIC_KEYS_PAUSE_MILLISEC = 0; }
+      ];
+
+      MAPPINGS = [
+        {
+          KEY = "KEY_CAPSLOCK";
+          TAP = "KEY_ESC";
+          HOLD = "KEY_LEFTCTRL";
+        }
+        {
+          KEY = "KEY_SYSRQ";
+          TAP = "KEY_SYSRQ";
+          HOLD = "KEY_RIGHTMETA";
+        }
+        {
+          KEY = "KEY_LEFTMETA";
+          TAP = [ "KEY_LEFTMETA" "KEY_F1" ];
+          HOLD = "KEY_LEFTMETA";
+        }
+        {
+          KEY = "KEY_RIGHTSHIFT";
+          TAP = [ "KEY_LEFTMETA" "KEY_F2" ];
+          HOLD = "KEY_RIGHTSHIFT";
+        }
+        {
+          KEY = "KEY_RIGHTALT";
+          TAP = "KEY_GRAVE";
+          HOLD = "KEY_RIGHTALT";
+        }
+      ];
+    };
   };
 }