feat(hyprlock): show idle inhibit feedback

modules/desktop/hyprland/hyprlock.nix

@@ -12,15 +12,24 @@ let
   # The hyprlock this module installs, used by the lock keybind below.
   hyprlock = "${config.home-manager.users.${user}.programs.hyprlock.package}/bin/hyprlock";
 
+  sleepIcon = builtins.fromJSON ''"\udb81\udcb2"'';
+  sleepOffIcon = builtins.fromJSON ''"\udb81\udcb3"'';
+
   idleLockToggle = pkgs.writeShellScript "lockscreen-idle-inhibit-toggle" ''
     unit=lockscreen-idle-inhibit.service
 
+    refresh_waybar() {
+      ${pkgs.procps}/bin/pkill -RTMIN+9 waybar >/dev/null 2>&1 || true
+    }
+
     if ${pkgs.systemd}/bin/systemctl --user is-active --quiet "$unit"; then
       ${pkgs.systemd}/bin/systemctl --user stop "$unit"
+      refresh_waybar
+      ${pkgs.swayosd}/bin/swayosd-client --custom-message "${sleepIcon}"
       exit 0
     fi
 
-    ${pkgs.systemd}/bin/systemd-run \
+    if ${pkgs.systemd}/bin/systemd-run \
       --user \
       --collect \
       --unit=lockscreen-idle-inhibit \
@@ -29,7 +38,10 @@ let
       --what=idle \
       --who=lockscreen-hotkey \
       --why="lock screen disabled by hotkey" \
-      ${pkgs.coreutils}/bin/sleep infinity
+      ${pkgs.coreutils}/bin/sleep infinity >/dev/null; then
+      refresh_waybar
+      ${pkgs.swayosd}/bin/swayosd-client --custom-message "${sleepOffIcon}"
+    fi
   '';
 in
 {