Keyboard and KeyboardBT polymorphism, onLED not working?

[itrr0]

I'm new to C++ and I wanted to have one keyboard instance that can be either KeyboardBT or Keyboard so that I can choose between them based on a file on the flash. begin(), press(), and releaseAll() work just fine but onLED() doesn't work for me. Is this something that can't be fixed or have I done something wrong?

void ledCB(bool numlock, bool capslock, bool scrolllock, bool compose, bool kana, void *cbData) {
  (void) numlock;
  (void) scrolllock;
  (void) compose;
  (void) kana;
  (void) cbData;
  Serial.println("Capslock was pressed!");
}
class KeyboardWrapper {
public:
  virtual void begin(const char *localName = nullptr, const char *hidName = nullptr, const uint8_t *layout = KeyboardLayout_sv_SE) = 0;
  virtual void begin2(const uint8_t *layout = KeyboardLayout_sv_SE) = 0;
  virtual void press(uint8_t k) = 0;
  virtual void releaseAll() = 0;
  virtual ~KeyboardWrapper() {}
};

class KeyboardWrapperHID : public KeyboardWrapper {
private:
  Keyboard_ keyboard;
public:
  void begin(const char *localName = nullptr, const char *hidName = nullptr, const uint8_t *layout = KeyboardLayout_sv_SE) override {
    keyboard.begin(layout);
    keyboard.onLED(ledCB);
  }
  void begin2(const uint8_t *layout = KeyboardLayout_sv_SE) override {
    keyboard.begin(layout);
    keyboard.onLED(ledCB);
  }
  void press(uint8_t k) override {
    keyboard.press(k);
  }
  void releaseAll() override {
    keyboard.releaseAll();
  }
};

class KeyboardWrapperBT : public KeyboardWrapper {
private:
  KeyboardBT_ keyboardBT;
public:
  void begin(const char *localName = nullptr, const char *hidName = nullptr, const uint8_t *layout = KeyboardLayout_sv_SE) override {
    keyboardBT.begin(keyboardName, hidName, layout);
    keyboardBT.onLED(ledCB);
  }
  void begin2(const uint8_t *layout = KeyboardLayout_sv_SE) override {
    keyboardBT.begin();
    keyboardBT.onLED(ledCB);
  }
  void press(uint8_t k) override {
    keyboardBT.press(k);
  }
  void releaseAll() override {
    keyboardBT.releaseAll();
  }
};


KeyboardWrapper* createKeyboard(bool bt) {
  if (bt) {
    return new KeyboardWrapperBT;
  } else {
    return new KeyboardWrapperHID;
  }
}
KeyboardWrapper *kb;

void setup() {
  Serial.begin(115200);

  kb = createKeyboard(bluetooth);

  if (bluetooth) {
    kb->begin(keyboardName, nullptr, KeyboardLayout_sv_SE);
  } else {
    kb->begin2(KeyboardLayout_sv_SE);
  }
}

[itrr0]

I think the problem lies within this function

extern "C" void tud_hid_set_report_cb(uint8_t instance, uint8_t report_id, hid_report_type_t report_type, uint8_t const* buffer, uint16_t bufsize) {
    (void) report_id;
    (void) instance;

    if ((report_type == HID_REPORT_TYPE_OUTPUT) && (bufsize > 0) && (Keyboard._ledCB)) {
        uint8_t const kbd_leds = buffer[0];
        Keyboard._ledCB(kbd_leds & KEYBOARD_LED_NUMLOCK, kbd_leds & KEYBOARD_LED_CAPSLOCK, kbd_leds & KEYBOARD_LED_SCROLLLOCK, kbd_leds & KEYBOARD_LED_COMPOSE, kbd_leds & KEYBOARD_LED_KANA, Keyboard._ledCBdata);
    }
}

[itrr0]

Fixed it!