How incapsulate JS example "Calculator" ?

[JohnZX]

Hi !
Now I have my simple class

// In HPP

class fpUI : public QDialog
{
    Q_OBJECT

public:

    Q_INVOKABLE fpUI(int id, MainWindow *parent = nullptr, Qt::WindowFlags f = Qt::Widget);
    fpUI(QDomNode item, MainWindow *parent = nullptr, Qt::WindowFlags f = Qt::Widget);
    ~fpUI();

    MainWindow	*getParent()  { return mParent; }

public slots:
signals:
    void keyPressed(int key, int mod);  // For Qt Script

protected:
    int Idd;   // This Idd
    QString objName;
    MainWindow *mParent;
    QScriptEngine   *engine;
    QWidget         *formUI;        // == This UI 

protected slots:
    void on_labelPress();
    void on_buttonPress();
    void initUI(QDomNode item);
    void closeEvent(QCloseEvent *event);
    void keyPressEvent (QKeyEvent *event);
};

// In CPP

fpUI::fpUI(QDomNode item, MainWindow *parent, Qt::WindowFlags f)
       : QDialog(parent, f)
{
    mParent = parent;
    Idd = item.toElement().attribute("id").toInt();
    initUI(item);
}

// construct UI
void fpUI::initUI(QDomNode item)
{
    formUI = nullptr;

    if (item.nodeName() != getTagByClass(md_forma)) // forma
    {
        QMessageBox::warning(this, tr("ProGramm"), tr("Is Not UI Object !!!"));
        return;
    }

    objName = QString("Frm%0").arg(Idd);
    setObjectName(objName);

    engine = mParent->getEngine();

    QDomElement frmo = item.firstChildElement(getTagByClass(md_dialogform));  // dialogform
    QDomElement scro = item.firstChildElement(getTagByClass(md_sourcecode));  // sourcecode

    // Load Dialog Form from Resource !!!
    formUI = mParent->loadResource(frmo, dynamic_cast<QWidget *>(this)); 
    if (!formUI)
    {
        QMessageBox::information(this, tr("ProGramm"), tr("Error load UI !"));
        return;
    }

    setGeometry(formUI->geometry());
    setWindowTitle(formUI->windowTitle());
    setFont(formUI->font());

    QScriptValue global = engine->globalObject();

    // Register this Object in JS !!!
    QScriptValue valUI = engine->newQObject(formUI,  QScriptEngine::ScriptOwnership);

  // Load JS module and evaluate it in Object "objName" Context !!!
  // Context is Important !!!
  QScriptValue scrUI = mParent->loadScript(scro, objName);

// In Calculator example is :
////! [2]
//    QScriptValue ctor = engine.evaluate("Calculator");
//    QScriptValue scriptUi = engine.newQObject(ui, QScriptEngine::ScriptOwnership);
//    QScriptValue calc = ctor.construct(QScriptValueList() << scriptUi);
////! [2]
}

As in result in JS will be created QDialog Object with it's Script inside.
In Script we write:

var le = this.findChild("leSuma")	// Line Edit Suma

In Calculator example we can write::

// field Suma direct, with not need call findChild("leSuma")  !!!  Important !!!
var le = this.ui.leSuma	

My question - How i can direct access to control members in JS fpUI Object like in Calculator example, with out call findChild("") ?

Thx advance !!!

[JohnZX]

@JohnZX SOLVED

Change
ctor.construct(QScriptValueList() << scriptUi);
To
QScriptValue valApp = engine->globalObject().property(objName);
ctor.call(valApp, QScriptValueList() << scriptUi);