Wt

When I dynamically add a submenu with a menuitem, click on it, remove it, re-add it, reclick it, I get a crash. When the menu is not rendered as a list and doesn't make use of internal paths, I don't get the crash.

FYI: I'm using the git version.

Steps to reproduce:

1. click the 'middle menu' option
   
2. click the 'Add submenu' button
   
3. click the 'probleemitem' option
   
4. click the 'middle menu' option
   
5. click the 'Remove submenu' option
   
6. click the 'Add submenu option'
   
7. click the 'probleemitem' option -> segmentation fault

void HelloApplication::create()

{

contentsStack_ = new WStackedWidget();

// top menu

WMenu *topmenu = new WMenu(contentsStack_, Vertical);

topmenu->setRenderAsList(true);

topmenu->setStyleClass("menu");

topmenu->setInternalPathEnabled();

topmenu->setInternalBasePath("/");

// menu middle

WMenu *middle_menu = new WMenu(contentsStack_, Vertical);

middle_menu->setRenderAsList(true);

middle_menu->setStyleClass("menu");

middle_menu->setInternalPathEnabled();

middle_menu->setInternalBasePath("/level1");

WPushButton *add_submenu_button = new WPushButton();

add_submenu_button->clicked().connect(bind(&HelloApplication::add_option, this));

add_submenu_button->setText("Add submenu");

WPushButton *remove_submenu_button = new WPushButton();

remove_submenu_button->clicked().connect(bind(&HelloApplication::remove_option, this));

remove_submenu_button->setText("Remove submenu");

WContainerWidget *middle_container = new WContainerWidget();

middle_container->addWidget(add_submenu_button);

middle_container->addWidget(remove_submenu_button);

WSubMenuItem *middle_menuItem = new WSubMenuItem("middle menu", middle_container);

middle_menuItem->setSubMenu(middle_menu);

topmenu->addItem(middle_menuItem);

// assign so we can use this in our add_option() method

menu_ = middle_menu;

WHBoxLayout *layout = new WHBoxLayout();

layout*->addWidget(topmenu*);

layout->addWidget(contentsStack_);

root()->setLayout(layout, AlignTop);

}

void HelloApplication::add_option()

{

WMenu *submenu = new WMenu(contentsStack_, Vertical);

submenu->setRenderAsList(true);

submenu->setStyleClass("menu submenu");

WSubMenuItem *submenuItem = new WSubMenuItem("submenu", new WText("submenu contents"));

submenu->setInternalPathEnabled();

submenu~~setInternalBasePath("/" + submenuItem~~>pathComponent());

WMenuItem *probleemitem = new WMenuItem("probleemitem", new WText("probleem item"));

submenu->addItem(probleemitem);

submenuItem->setSubMenu(submenu);

menu_->addItem(submenuItem);

menu_item_ = submenuItem;

}

void HelloApplication::remove_option()

{

menu*->removeItem(menu_item*);

}

stacktrace:

Thread [6] 21711 (Suspended : Signal : SIGSEGV:Segmentation fault)

Wt::WMenu::selectVisual() at WMenu.C:314 0xb7c8cf0b

Wt::WMenu::select() at WMenu.C:292 0xb7c8d3f4

Wt::WMenu::select() at WMenu.C:287 0xb7c8dc5c

Wt::WSubMenuItem::subItemSelected() at WSubMenuItem.C:30 0xb7cf6f3d

boost::_mfi::mf0<void, Wt::WSubMenuItem>::operator() at mem_fn_template.hpp:49 0xb7cf722d

operator() at bind.hpp:253 0xb7cf722d

operator() at bind_template.hpp:203 0xb7cf722d

boost::detail::function::void_function_obj_invoker6<boost::_bi::bind_t<void, boost::_mfi::mf0<void, Wt::WSubMenuItem>, boost::_bi::list1<boost::_bi::value<Wt::WSubMenuItem*> > >, void, Wt::WMenuItem*, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass>::invoke() at function_template.hpp:153 0xb7cf722d

boost::signal6<void, Wt::WMenuItem*, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass, boost::last_value, int, std::less, boost::function6<void, Wt::WMenuItem*, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass> >::operator() at 0xb7c90958

Wt::Signal<Wt::WMenuItem*, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass>::emit() at 0xb7c90fad

Wt::WMenu::select() at WMenu.C:301 0xb7c8d591

Wt::WMenuItem::setFromInternalPath() at WMenuItem.C:375 0xb7c91b85

Wt::WMenu::internalPathChanged() at WMenu.C:458 0xb7c8da1e

boost::_mfi::mf1<void, Wt::WMenu, std::string const&>::operator() at mem_fn_template.hpp:165 0xb7c8e66f

operator() at bind.hpp:313 0xb7c8e66f

operator() at bind_template.hpp:203 0xb7c8e66f

boost::detail::function::void_function_obj_invoker6<boost::_bi::bind_t<void, boost::_mfi::mf1<void, Wt::WMenu, std::string const&>, boost::_bi::list2<boost::_bi::value<Wt::WMenu*>, boost::arg<1> > >, void, std::string, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass>::invoke() at function_template.hpp:153 0xb7c8e66f

boost::signal6<void, std::string, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass, boost::last_value, int, std::less, boost::function6<void, std::string, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass> >::operator() at 0xb7bcaaef

Wt::Signal<std::string, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass, Wt::NoClass>::emit() at 0xb7bcb18f

Wt::WMenu::select() at WMenu.C:306 0xb7c8d632

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