public class ApplicationActionBarAdvisor extends ActionBarAdvisor {

  private static boolean ctrlPressed = false;

  static {
    PlatformUI.getWorkbench().getDisplay().addFilter(SWT.KeyDown,
        new Listener() {

          public void handleEvent(Event e) {
            if ((e.keyCode & SWT.CTRL) != 0) {
              setCtrlPressed(true);
            }
          }
        });
  }

  private static void setCtrlPressed(boolean b) {
    ctrlPressed = b;
  }

  private boolean getCtrlPressed() {
    return ctrlPressed;
  }

  public ApplicationActionBarAdvisor(IActionBarConfigurer configurer) {
    super(configurer);
  }

  @Override
  protected void fillMenuBar(IMenuManager menuBar) {
    final IMenuService menuService = (IMenuService) PlatformUI.getWorkbench()
        .getService(IMenuService.class);

    AbstractContributionFactory factory = new AbstractContributionFactory(
        "menu:org.eclipse.ui.main.menu?after=myHelpMenu", null) {
      public void createContributionItems(final IServiceLocator serviceLocator,
          final IContributionRoot additions) {

        final MenuManager testMenu = new MenuManager("TestMenu");
        testMenu.setRemoveAllWhenShown(true);
        testMenu.addMenuListener(new IMenuListener() {

          @Override
          public void menuAboutToShow(IMenuManager manager) {
            if (getCtrlPressed()) {
              testMenu.add(new Action("TestAction") {
                @Override
                public void run() {
                  IWorkbench workbench = PlatformUI.getWorkbench();
                  IBindingService bindingService = (IBindingService) workbench
                      .getService(IBindingService.class);
                  bindingService.openKeyAssistDialog();
                }
              });
              setCtrlPressed(false);
            }
          }
        });
        additions.addContributionItem(testMenu, null);

      }
    };
    menuService.addContributionFactory(factory);

  }

}