@Override
    public final void update(final AnActionEvent event) {
      final Presentation presentation = event.getPresentation();

      final DataContext dataContext = event.getDataContext();
      final HierarchyBrowserBaseEx browser =
          (HierarchyBrowserBaseEx) dataContext.getData(myBrowserDataKey);
      if (browser == null) {
        presentation.setVisible(false);
        presentation.setEnabled(false);
        return;
      }

      presentation.setVisible(true);

      final PsiElement selectedElement = browser.getSelectedElement();
      if (selectedElement == null || !browser.isApplicableElement(selectedElement)) {
        presentation.setEnabled(false);
        presentation.setVisible(false);
        return;
      }

      presentation.setEnabled(isEnabled(browser, selectedElement));
      String nonDefaultText = getNonDefaultText(browser, selectedElement);
      if (nonDefaultText != null) {
        presentation.setText(nonDefaultText);
      }
    }
    @Override
    public final void actionPerformed(final AnActionEvent event) {
      final DataContext dataContext = event.getDataContext();
      final HierarchyBrowserBaseEx browser =
          (HierarchyBrowserBaseEx) dataContext.getData(myBrowserDataKey);
      if (browser == null) return;

      final PsiElement selectedElement = browser.getSelectedElement();
      if (selectedElement == null || !browser.isApplicableElement(selectedElement)) return;

      final String currentViewType = browser.myCurrentViewType;
      Disposer.dispose(browser);
      final HierarchyProvider provider =
          BrowseHierarchyActionBase.findProvider(
              myProviderLanguageExtension,
              selectedElement,
              selectedElement.getContainingFile(),
              event.getDataContext());
      final HierarchyBrowser newBrowser =
          BrowseHierarchyActionBase.createAndAddToPanel(
              selectedElement.getProject(), provider, selectedElement);
      ApplicationManager.getApplication()
          .invokeLater(
              () ->
                  ((HierarchyBrowserBaseEx) newBrowser)
                      .changeView(correctViewType(browser, currentViewType)));
    }