feat(powerctrl): add suspend flag

Add suspend flag to graphics profile to disallow suspend on
certain targets.

Signed-off-by: Manuel Bluhm <manuel@ssrc.tii.ae>

Author: mbssrc

modules/desktop/graphics/ewwbar.nix

@@ -10,7 +10,10 @@ let
 
   cfg = config.ghaf.graphics.labwc;
   useGivc = config.ghaf.givc.enable;
-  ghaf-powercontrol = pkgs.ghaf-powercontrol.override { ghafConfig = config.ghaf; };
+  ghaf-powercontrol = pkgs.ghaf-powercontrol.override {
+    ghafConfig = config.ghaf;
+    inherit (pkgs) ghaf-artwork;
+  };
   inherit (config.ghaf.services.audio) pulseaudioTcpControlPort;
 
   # Called by eww.yuck for updates and reloads

modules/microvm/modules.nix

@@ -75,7 +75,7 @@ let
     # Graphics profiles module
     graphics = {
       config.ghaf.profiles.graphics = {
-        inherit (configHost.ghaf.profiles.graphics) compositor renderer;
+        inherit (configHost.ghaf.profiles.graphics) compositor renderer allowSuspend;
         idleManagement = {
           inherit (configHost.ghaf.profiles.graphics.idleManagement) enable;
         };

modules/microvm/sysvms/guivm.nix

@@ -134,6 +134,7 @@ let
             acpid = lib.mkIf config.ghaf.givc.enable {
               enable = true;
               lidEventCommands = ''
+                wl_running=1
                 case "$1" in
                   "button/lid LID close")
                     # Lock sessions
@@ -147,16 +148,24 @@ let
                       wl_running=0
                     fi
 
-                    # Initiate Suspension
-                    ${pkgs.givc-cli}/bin/givc-cli ${config.ghaf.givc.cliArgs} suspend
+                    ${lib.optionalString config.ghaf.profiles.graphics.allowSuspend ''
+                      # Initiate Suspension
+                      ${pkgs.givc-cli}/bin/givc-cli ${config.ghaf.givc.cliArgs} suspend
 
-                    # Enable display
-                    if [ "$wl_running" -eq 1 ]; then
-                      WAYLAND_DISPLAY=/run/user/${builtins.toString config.ghaf.users.loginUser.uid}/wayland-0 ${pkgs.wlopm}/bin/wlopm --on '*'
-                    fi
+                      # Enable display
+                      if [ "$wl_running" -eq 1 ]; then
+                        WAYLAND_DISPLAY=/run/user/${builtins.toString config.ghaf.users.loginUser.uid}/wayland-0 ${pkgs.wlopm}/bin/wlopm --on '*'
+                      fi
+                    ''}
                     ;;
                   "button/lid LID open")
                     # Command to run when the lid is opened
+                    ${lib.optionalString (!config.ghaf.profiles.graphics.allowSuspend) ''
+                      # Enable display
+                      if [ "$wl_running" -eq 1 ]; then
+                        WAYLAND_DISPLAY=/run/user/${builtins.toString config.ghaf.users.loginUser.uid}/wayland-0 ${pkgs.wlopm}/bin/wlopm --on '*'
+                      fi
+                    ''}
                     ;;
                 esac
               '';

modules/profiles/graphics.nix

@@ -55,6 +55,14 @@ in
         '';
       };
     };
+    allowSuspend = mkOption {
+      type = types.bool;
+      default = true;
+      description = ''
+        Allow the system to suspend. When enabled, the system will suspend via either the suspend icon,
+        lid close, or button press.
+      '';
+    };
   };
 
   config = mkIf cfg.enable {

packages/ghaf-powercontrol/package.nix

@@ -5,9 +5,11 @@
   lib,
   systemd,
   wlopm,
+  libnotify,
   wayland-logout,
   givc-cli ? null,
   ghafConfig ? { },
+  ghaf-artwork ? null,
 }:
 let
   useGivc = ghafConfig.givc.enable;
@@ -24,6 +26,7 @@ writeShellApplication {
     systemd
     wlopm
     wayland-logout
+    libnotify
   ] ++ (lib.optional useGivc givc-cli);
 
   text = ''
@@ -52,19 +55,31 @@ writeShellApplication {
         ${if useGivc then "givc-cli ${ghafConfig.givc.cliArgs}" else "systemctl"} "$1"
         ;;
       suspend)
-        # Lock sessions
-        loginctl lock-session
+      ${
+        if ghafConfig.profiles.graphics.allowSuspend then
+          ''
+            # Lock sessions
+            loginctl lock-session
 
-        # Switch off display before suspension
-        ${waylandDisplayCmd "off"}
+            # Switch off display before suspension
+            ${waylandDisplayCmd "off"}
 
-        # Send suspend command to host, ensure screen is on in case of failure
-        ${if useGivc then "givc-cli ${ghafConfig.givc.cliArgs}" else "systemctl"} suspend \
-          || ${waylandDisplayCmd "on"}
+            # Send suspend command to host, ensure screen is on in case of failure
+            ${if useGivc then "givc-cli ${ghafConfig.givc.cliArgs}" else "systemctl"} suspend \
+              || ${waylandDisplayCmd "on"}
 
-        # Switch on display on wakeup
-        ${waylandDisplayCmd "on"}
-        ;;
+            # Switch on display on wakeup
+            ${waylandDisplayCmd "on"}
+          ''
+        else
+          ''
+            MSG="Suspend functionality is currently not enabled on this system."
+            echo "$MSG"
+            notify-send -i ${ghaf-artwork}/icons/suspend.svg 'Ghaf Power Control' "$MSG"
+            exit 1
+          ''
+      }
+      ;;
       logout)
         wayland-logout
         loginctl kill-user "$USER" -s SIGKILL

targets/laptop/flake-module.nix

@@ -113,6 +113,7 @@ let
           reference.profiles.mvp-user-trial.enable = true;
           partitioning.disko.enable = true;
           profiles.graphics.idleManagement.enable = false;
+          profiles.graphics.allowSuspend = false;
         };
       }
     ]))