wasm support

src/main.cpp

@@ -1,15 +1,27 @@
 #include "ui/Application.h"
 #include <cstdio>
 
+#ifdef __EMSCRIPTEN__
+// Keep app alive for the Emscripten main loop.
+static baudline::Application* g_app = nullptr;
+#endif
+
 int main(int argc, char** argv) {
-    baudline::Application app;
+    static baudline::Application app;
 
     if (!app.init(argc, argv)) {
         std::fprintf(stderr, "Failed to initialize application\n");
         return 1;
     }
 
+#ifdef __EMSCRIPTEN__
+    g_app = &app;
+#endif
+
     app.run();
+
+#ifndef __EMSCRIPTEN__
     app.shutdown();
+#endif
     return 0;
 }