bool wxWindowGTK::DoPopupMenu( wxMenu *menu, int x, int y )
{
wxCHECK_MSG( m_widget != NULL, false, wxT("invalid window") );
wxCHECK_MSG( menu != NULL, false, wxT("invalid popup-menu") );
// NOTE: if you change this code, you need to update
// the same code in taskbar.cpp as well. This
// is ugly code duplication, I know.
menu->UpdateUI();
bool is_waiting = true;
gulong handler = gtk_signal_connect( GTK_OBJECT(menu->m_menu),
"hide",
GTK_SIGNAL_FUNC(gtk_pop_hide_callback),
(gpointer)&is_waiting );
wxPoint pos;
gpointer userdata;
GtkMenuPositionFunc posfunc;
if ( x == -1 && y == -1 )
{
// use GTK's default positioning algorithm
userdata = NULL;
posfunc = NULL;
}
else
{
pos = ClientToScreen(wxPoint(x, y));
userdata = &pos;
posfunc = wxPopupMenuPositionCallback;
}
wxMenuEvent eventOpen(wxEVT_MENU_OPEN, -1, menu);
DoCommonMenuCallbackCode(menu, eventOpen);
gtk_menu_popup(
GTK_MENU(menu->m_menu),
NULL, // parent menu shell
NULL, // parent menu item
posfunc, // function to position it
userdata, // client data
0, // button used to activate it
wxGtkTimeLastClick // the time of activation
);
while (is_waiting)
{
gtk_main_iteration();
}
gtk_signal_disconnect(GTK_OBJECT(menu->m_menu), handler);
wxMenuEvent eventClose(wxEVT_MENU_CLOSE, -1, menu);
DoCommonMenuCallbackCode(menu, eventClose);
return true;
}
static void menuitem_deselect(GtkWidget*, wxMenuItem* item)
{
if (!item->IsEnabled())
return;
wxMenuEvent event( wxEVT_MENU_HIGHLIGHT, -1 );
DoCommonMenuCallbackCode(item->GetMenu(), event);
}
static void gtk_menu_close_callback( GtkWidget *WXUNUSED(widget), wxMenuBar *menubar )
{
if ( !menubar->GetMenuCount() )
{
// if menubar is empty we can't call GetMenu(0) below
return;
}
wxMenuEvent event( wxEVT_MENU_CLOSE, -1, NULL );
DoCommonMenuCallbackCode(menubar->GetMenu(0), event);
}
// "hide" from m_menu
static void menu_hide(GtkWidget*, wxMenu* menu)
{
// When using Ubuntu Unity desktop environment we get "hide" signal even
// when the window is not shown yet because Unity hides all the menus to
// show them only in the global menu bar. Just ignore this even instead of
// crashing in DoCommonMenuCallbackCode().
if ( !menu->GetWindow() )
return;
wxMenuEvent event(wxEVT_MENU_CLOSE, menu->m_popupShown ? -1 : 0, menu);
menu->m_popupShown = false;
DoCommonMenuCallbackCode(menu, event);
}
static void gtk_menu_open_callback( GtkWidget *WXUNUSED(widget), wxMenu *menu )
{
wxMenuEvent event(wxEVT_MENU_OPEN, -1, menu);
DoCommonMenuCallbackCode(menu, event);
}
// "hide" from m_menu
static void menu_hide(GtkWidget*, wxMenu* menu)
{
wxMenuEvent event(wxEVT_MENU_CLOSE, menu->m_popupShown ? -1 : 0, menu);
menu->m_popupShown = false;
DoCommonMenuCallbackCode(menu, event);
}
// "map" from m_menu
static void menu_map(GtkWidget*, wxMenu* menu)
{
wxMenuEvent event(wxEVT_MENU_OPEN, menu->m_popupShown ? -1 : 0, menu);
DoCommonMenuCallbackCode(menu, event);
}