Hyprland: prefer bluetooth keyboard

modules/hm/hyprland-bluetooth-keyboard.nix

@@ -0,0 +1,57 @@
+{ pkgs, lib, nixosConfig, ... }: {
+  systemd.user.services."bluetooth-keyboard" = {
+    Unit = {
+      Description = "Disable the laptop keyboard when the bluetooth keyboard is connected";
+      After = [ "graphical-session.target" ];
+      PartOf = [ "graphical-session.target" ];
+    };
+    Install.WantedBy = [ "graphical-session.target" ];
+    Service = {
+      Type = "simple";
+      ExecStart = pkgs.writeShellScript "bluetooth-keyboard.sh" ''
+        PATH=$PATH:${lib.makeBinPath [pkgs.coreutils pkgs.gnugrep pkgs.libnotify nixosConfig.programs.hyprland.package]}
+        BLUETOOTH_DEVICE="keychron-k1-max-keyboard"
+        LAPTOP_DEVICE="at-translated-set-2-keyboard"
+
+        if [ -z "$XDG_RUNTIME_DIR" ]; then
+          export XDG_RUNTIME_DIR=/run/user/$(id -u)
+        fi
+
+        export STATUS_FILE="$XDG_RUNTIME_DIR/bluetooth_keyboard.status"
+
+        enable_laptop_keyboard() {
+          if [[ `cat $STATUS_FILE` == "false" ]]; then
+            printf "true" > "$STATUS_FILE"
+            echo "Enabling laptop keyboard"
+            notify-send -u normal "Enabling laptop keyboard"
+            hyprctl keyword '$LAPTOP_KEYBOARD_ENABLED' true
+            hyprctl keyword device:a ""
+          fi
+        }
+
+        disable_laptop_keyboard() {
+          if [[ `cat $STATUS_FILE` == "true" ]]; then
+            printf "false" > "$STATUS_FILE"
+            echo "Disabling laptop keyboard"
+            notify-send -u normal "Disabling laptop keyboard"
+            hyprctl keyword '$LAPTOP_KEYBOARD_ENABLED' false
+            hyprctl keyword device:a ""
+          fi
+        }
+
+        printf "true" > "$STATUS_FILE"
+
+        while true; do
+          if hyprctl devices | grep --quiet $BLUETOOTH_DEVICE ; then
+            disable_laptop_keyboard
+          else
+            enable_laptop_keyboard
+          fi
+
+          sleep 5;
+        done
+      '';
+    };
+  };
+}
+

modules/hm/hyprland.nix

@@ -9,6 +9,7 @@
     ./swayidle.nix
     ./swaynotificationcenter.nix
     ./wl_update_background.nix
+    ./hyprland-bluetooth-keyboard.nix
   ];
 
   home.packages = builtins.attrValues { inherit (pkgs) blueman brillo gamescope grimblast networkmanagerapplet wireplumber playerctl swaylock swww way-lockscreen waybar wl-clipboard wl-clipedit wlogout wofi wofi-emoji wtype xdg-desktop-portal-gtk; };
@@ -81,6 +82,12 @@
           sensitivity = 0 # -1.0 - 1.0, 0 means no modification.
       }
 
+      $LAPTOP_KEYBOARD_ENABLED = true
+      device {
+        name = at-translated-set-2-keyboard
+        enabled = $LAPTOP_KEYBOARD_ENABLED
+      }
+
       device {
         name=keychron-k1-max-keyboard
         kb_layout=us