services.logind: add options for lid-switch behavior

nixos/modules/system/boot/systemd.nix

@@ -396,6 +396,11 @@ let
         '';
     };
 
+  logindHandlerType = types.enum [
+    "ignore" "poweroff" "reboot" "halt" "kexec" "suspend"
+    "hibernate" "hybrid-sleep" "lock"
+  ];
+
 in
 
 {
@@ -595,6 +600,27 @@ in
       '';
     };
 
+    services.logind.lidSwitch = mkOption {
+      default = "suspend";
+      example = "ignore";
+      type = logindHandlerType;
+
+      description = ''
+        Specifies what to be done when the laptop lid is closed.
+      '';
+    };
+
+    services.logind.lidSwitchDocked = mkOption {
+      default = "ignore";
+      example = "suspend";
+      type = logindHandlerType;
+
+      description = ''
+        Specifies what to be done when the laptop lid is closed
+        and another screen is added.
+      '';
+    };
+
     systemd.user.extraConfig = mkOption {
       default = "";
       type = types.lines;
@@ -721,6 +747,8 @@ in
       "systemd/logind.conf".text = ''
         [Login]
         KillUserProcesses=no
+        HandleLidSwitch=${config.services.logind.lidSwitch}
+        HandleLidSwitchDocked=${config.services.logind.lidSwitchDocked}
         ${config.services.logind.extraConfig}
       '';