@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)));
    }
  public void update(final AnActionEvent event) {
    super.update(event);

    final Presentation presentation = event.getPresentation();
    final DataContext context = event.getDataContext();
    Module module = (Module) context.getData(LangDataKeys.MODULE.getName());
    PsiFile currentFile = (PsiFile) context.getData(LangDataKeys.PSI_FILE.getName());
    Editor editor = (Editor) context.getData(PlatformDataKeys.EDITOR.getName());
    // VirtualFile currentFile = (VirtualFile)
    // context.getData(PlatformDataKeys.VIRTUAL_FILE.getName());
    if (currentFile != null && editor != null) {
      boolean isSSFile =
          currentFile
              .getFileType()
              .getDefaultExtension()
              .equals(SilverStripeFileType.DEFAULT_EXTENSION);
      SelectionModel selectionModel = editor.getSelectionModel();
      String selectedText = selectionModel.getSelectedText();
      this.selectedText = selectedText;
      this.selectonModel = selectionModel;
      this.editor = editor;
      this.currentFile = currentFile;
      if (selectedText == null) {
        presentation.setEnabled(false);
      }
      if (!isSSFile) {
        presentation.setEnabled(false);
        presentation.setVisible(false);
      }
    } else {
      presentation.setEnabled(false);
      presentation.setVisible(false);
    }
  }
    @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);
      }
    }
 public void update(AnActionEvent e) {
   DataContext dataContext = e.getDataContext();
   Editor editor = PlatformDataKeys.EDITOR.getData(dataContext);
   boolean enabled =
       (editor != null && FileDocumentManager.getInstance().getFile(editor.getDocument()) != null)
           || getElementToCopy(editor, dataContext) != null;
   e.getPresentation().setEnabled(enabled);
   if (ActionPlaces.isPopupPlace(e.getPlace())) {
     e.getPresentation().setVisible(enabled);
   } else {
     e.getPresentation().setVisible(true);
   }
 }
  public void actionPerformed(AnActionEvent e) {
    DataContext dataContext = e.getDataContext();
    Editor editor = PlatformDataKeys.EDITOR.getData(dataContext);
    Project project = PlatformDataKeys.PROJECT.getData(dataContext);
    PsiElement element = getElementToCopy(editor, dataContext);

    if (!doCopy(element, project, editor) && editor != null) {
      Document document = editor.getDocument();
      PsiFile file = PsiDocumentManager.getInstance(project).getCachedPsiFile(document);
      if (file != null) {
        String toCopy =
            getFileFqn(file) + ":" + (editor.getCaretModel().getLogicalPosition().line + 1);
        CopyPasteManager.getInstance().setContents(new StringSelection(toCopy));
        setStatusBarText(project, toCopy + " has been copied");
      }
      return;
    }

    HighlightManager highlightManager = HighlightManager.getInstance(project);
    EditorColorsManager manager = EditorColorsManager.getInstance();
    TextAttributes attributes =
        manager.getGlobalScheme().getAttributes(EditorColors.SEARCH_RESULT_ATTRIBUTES);
    if (element != null && editor != null) {
      PsiElement nameIdentifier = HighlightUsagesHandler.getNameIdentifier(element);
      if (nameIdentifier != null) {
        highlightManager.addOccurrenceHighlights(
            editor, new PsiElement[] {nameIdentifier}, attributes, true, null);
      } else {
        PsiReference reference =
            TargetElementUtilBase.findReference(editor, editor.getCaretModel().getOffset());
        if (reference != null) {
          highlightManager.addOccurrenceHighlights(
              editor, new PsiReference[] {reference}, attributes, true, null);
        } else {
          highlightManager.addOccurrenceHighlights(
              editor, new PsiElement[] {element}, attributes, true, null);
        }
      }
    }
  }