Function EventHandler

test/browser/test_sdl2_key.c:14–47

int result = 1;

int EventHandler(void *userdata, SDL_Event *event) {
  int mod;

  switch(event->type) {
    case SDL_KEYUP:
      break;
    case SDL_KEYDOWN:
      switch (event->key.keysym.sym) {
        case SDLK_RIGHT: printf("KEYDOWN: right\n"); result *= 7; break;
        case SDLK_LEFT: printf("KEYDOWN: left\n"); result *= 11; break;
        case SDLK_DOWN: printf("KEYDOWN: down\n"); result *= 13; break;
        case SDLK_UP: printf("KEYDOWN: up\n"); result *= 17; break;
        case SDLK_a: printf("KEYDOWN: a\n"); result *= 19; break;
        default: {
          if (event->key.keysym.scancode == SDL_SCANCODE_B) {
            printf("KEYDOWN: b scancode\n"); result *= 23; break;
          }
          printf("unknown key: sym %d scancode %d\n", event->key.keysym.sym, event->key.keysym.scancode);
          emscripten_force_exit(result); // comment this out to leave event handling active. Use the following to log DOM keys:
                                         // addEventListener('keyup', function(event) { console.log(event->keyCode) }, true)
        }
      }
      break;
    case SDL_TEXTINPUT:
      printf("TEXTINPUT: %c\n", event->text.text[0]);
      if (event->text.text[0] == 'A') {
        result *= 5;
      }
      break;
    default: /* Report an unhandled event */
      printf("I don't know what this event is (type=%d)!\n", event->type);
  }
  return 0;
}

void pump_events() {
  SDL_Event event;