Add option to check for OBS shutdown to MacroConditionPluginState

src/advanced-scene-switcher.cpp

@@ -576,6 +576,18 @@ void setStreamStopping()
 		std::chrono::high_resolution_clock::now();
 }
 
+void handleExit()
+{
+	switcher->obsIsShuttingDown = true;
+	if (switcher && switcher->obsIsShuttingDown &&
+	    switcher->shutdownConditionCount) {
+		switcher->Stop();
+		switcher->checkMacros();
+		switcher->runMacros();
+	}
+	FreeSceneSwitcher();
+}
+
 // Note to future self:
 // be careful using switcher->m here as there is potential for deadlocks when using
 // frontend functions such as obs_frontend_set_current_scene()
@@ -587,7 +599,7 @@ static void OBSEvent(enum obs_frontend_event event, void *switcher)
 
 	switch (event) {
 	case OBS_FRONTEND_EVENT_EXIT:
-		FreeSceneSwitcher();
+		handleExit();
 		break;
 	case OBS_FRONTEND_EVENT_SCENE_CHANGED:
 		handleSceneChange();