Set explicit X11 class name in ImGui backend, and only use one WMClass in .desktop file

assets/com.complecwaft.Looper.desktop

@@ -6,7 +6,7 @@ Comment=An audio player that can properly loop audio files
 GenericName=Looping audio player
 Exec=looper -n %f
 Icon=looper
-StartupWMClass=looper;com.complecwaft.Looper;com.complecwaft.Looper.GTK
+StartupWMClass=looper
 MimeType=audio/x-wav;audio/ogg;audio/x-vorbis+ogg;audio/x-opus+ogg;audio/mpeg;audio/flac;audio/xm;audio/x-mod;audio/x-zsound;
 Categories=Audio;AudioVideo;
 Terminal=false

backends/ui/imgui/main.cpp

@@ -731,6 +731,7 @@ void ImGuiUIBackend::QuitHandler() {
 // Main code
 int ImGuiUIBackend::run(std::vector<std::string> realArgs, int argc, char** argv)
 {
+    SDL_setenv("SDL_VIDEO_X11_WMCLASS", "looper");
     int possible_error = UIBackend::run(realArgs, argc, argv);
     if (possible_error != 0) {
         return possible_error;

debian/changelog

@@ -1,3 +1,9 @@
+looper (1.dev3) UNRELEASED; urgency=medium
+
+  * Set window class in ImGui UI and also only use one StartupWMClass in the
+    desktop launcher file.
+
+ -- Zachary Hall <catmeow@complecwaft.com>  Thu, 19 Dec 2024 14:00:00 -0800
 looper (1.dev2) UNRELEASED; urgency=medium
 
   * Fix QT UI endlessly setting parameters and seeking