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#include <Wt/WApplication>
#include <Wt/WText>
#include <Wt/WBreak>
#include <Wt/WPopupMenu>

using namespace Wt;

class my_app: public WApplication
{
public:
    my_app(const WEnvironment& env);
private:
    WText* _text1;
    void item1();
    void item2();
    void subitem1();
};

my_app::my_app(const WEnvironment& env) :
    WApplication(env)
{
    _text1 = new WText("-----", root());

    new WBreak(root());

    WPopupMenu* _popup1 = new WPopupMenu();

    WPopupMenuItem* item1 = _popup1->addItem("Item 1");
    item1->triggered().connect(this, &my_app::item1);

    WPopupMenuItem* item2 = _popup1->addItem("Item 2");
    item2->triggered().connect(this, &my_app::item2);

    WPopupMenu* _popup2 = new WPopupMenu();

    WPopupMenuItem* subitem1 = _popup2->addItem("Sub Item 1");
    subitem1->triggered().connect(this, &my_app::subitem1);

    _popup1->addMenu("xxx", _popup2);

    WText* text = new WText("Clicking here will show a popup menu.", root());
    text->clicked().connect(_popup1, &WPopupMenu::popup);
}

void my_app::item1()
{
    _text1->setText("item1");
}

void my_app::item2()
{
    _text1->setText("item2");
}

void my_app::subitem1()
{
    // code is not reaching here
    _text1->setText("subitem1");
}

WApplication* createApplication(const WEnvironment& env)
{
    return new my_app(env);
}

int main(int argc, char** argv)
{
    return WRun(argc, argv, &createApplication);
}