From e645dcfbdd894c33fa404a7475bcf609b1be89c7 Mon Sep 17 00:00:00 2001
From: NilaTheDragon <nilathedragon@pm.me>
Date: Sun, 17 Aug 2025 15:19:29 +0200
Subject: [PATCH] protonvpn-gui: fix desktop item StartupWMClass

---
 pkgs/applications/networking/protonvpn-gui/default.nix | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pkgs/applications/networking/protonvpn-gui/default.nix b/pkgs/applications/networking/protonvpn-gui/default.nix
index 6a998264ead7..ff0a4a90ad2d 100644
--- a/pkgs/applications/networking/protonvpn-gui/default.nix
+++ b/pkgs/applications/networking/protonvpn-gui/default.nix
@@ -66,7 +66,10 @@ buildPythonApplication rec {
 
   postInstall = ''
     mkdir -p $out/share/{applications,pixmaps}
-    install -Dm 644 ${src}/rpmbuild/SOURCES/protonvpn-app.desktop $out/share/applications
+
+    # Fix the desktop file to correctly identify the wrapped app and show the icon during runtime
+    substitute ${src}/rpmbuild/SOURCES/protonvpn-app.desktop $out/share/applications/protonvpn-app.desktop \
+      --replace-fail "StartupWMClass=protonvpn-app" "StartupWMClass=.protonvpn-app-wrapped"
     install -Dm 644 ${src}/rpmbuild/SOURCES/proton-vpn-logo.svg $out/share/pixmaps
   '';