Wt

I'm trying to open popup menu using animation "SlideInFromTop", but it doesn't work at all. If I put both methods, popup() and animateShow(), then only popup menu happens to fade away when going on it with mouse. What I'm doing wrong and what I should do instead?

`Webpage::Webpage(const Wt::WEnvironment &env) : Wt::WApplication(env) {

appName = "JKProjects";
setTitle(appName);

Wt::WApplication::internalPathChanged().connect(this, &Webpage::onInternalPathChange);

Wt::WApplication::instance()->useStyleSheet("CSS/Style.css");

text1 = new Wt::WText(appName);
text1->setStyleClass("logo");
text1->decorationStyle().setForegroundColor(Wt::WColor::WColor(255, 255, 255));

numbersMenu = new Wt::WPopupMenu();
numbersMenu->addItem("Add/Subtract/Multiply/Divide Fractions");
numbersMenu->addItem("Alarm Clock");
numbersMenu->addItem("Binary to Decimal and Back Converter");
numbersMenu->addItem("Calculator");
numbersMenu->setStyleClass("Wt-popupmenu");
numbersMenu->setAutoHide(true, 0);

numbersMenuButton = new Wt::WPushButton("Numbers");
numbersMenuButton->setMenu(numbersMenu);
numbersMenuButton->setStyleClass("dropdownButton");
numbersMenuButton->clicked().setNotExposed();
numbersMenuButton->mouseWentOver().connect(std::bind(= {
numbersMenu->popup(numbersMenuButton);
//numbersMenu->animateShow(Wt::WAnimation(Wt::WAnimation::SlideInFromTop, Wt::WAnimation::Linear, 1000));
}));
numbersMenu->aboutToHide().connect(std::bind(= {
//numbersMenuButton->decorationStyle().setBackgroundColor(Wt::black);
}));

layout = new Wt::WHBoxLayout();
mainContainer = new Wt::WContainerWidget(Wt::WApplication::root());
mainContainer->setLayout(layout);

layout->addWidget(text1);
layout->addWidget(numbersMenuButton);
layout->addStretch(10000);

//onInternalPathChange();

}`

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