public IconsFreeActionGroup(ActionGroup group) {
   super(
       group.getTemplatePresentation().getText(),
       group.getTemplatePresentation().getDescription(),
       null);
   myGroup = group;
 }
 private void collectAllActions(DefaultActionGroup group, ActionGroup actionGroup) {
   for (AnAction action : actionGroup.getChildren(null)) {
     if (action instanceof ActionGroup && !((ActionGroup) action).isPopup()) {
       collectAllActions(group, (ActionGroup) action);
     } else {
       group.add(action);
     }
   }
 }
 @NotNull
 @Override
 public AnAction[] getChildren(@Nullable AnActionEvent e) {
   AnAction[] children = myGroup.getChildren(e);
   AnAction[] patched = new AnAction[children.length];
   for (int i = 0; i < children.length; i++) {
     patched[i] = patch(children[i]);
   }
   return patched;
 }
 private static void addSorted(DefaultActionGroup main, ActionGroup group) {
   final AnAction[] children = group.getChildren(null);
   boolean hadSecondary = false;
   for (AnAction action : children) {
     if (group.isPrimary(action)) {
       main.add(action);
     } else {
       hadSecondary = true;
     }
   }
   if (hadSecondary) {
     main.addSeparator();
     for (AnAction action : children) {
       if (!group.isPrimary(action)) {
         main.addAction(action).setAsSecondary(true);
       }
     }
   }
   String separatorText = group.getTemplatePresentation().getText();
   if (children.length > 0 && !StringUtil.isEmpty(separatorText)) {
     main.addAction(new Separator(separatorText), Constraints.FIRST);
   }
 }
  public static Pair<JPanel, JBList> createActionGroupPanel(
      ActionGroup action, final JComponent parent, final Runnable backAction) {
    JPanel actionsListPanel = new JPanel(new BorderLayout());
    actionsListPanel.setBackground(getProjectsBackground());
    final JBList list = new JBList(action.getChildren(null));
    list.setBackground(getProjectsBackground());
    list.installCellRenderer(
        new NotNullFunction<AnAction, JComponent>() {
          final JLabel label = new JLabel();

          {
            label.setBorder(JBUI.Borders.empty(3, 7));
          }

          @NotNull
          @Override
          public JComponent fun(AnAction action) {
            label.setText(action.getTemplatePresentation().getText());
            Icon icon = action.getTemplatePresentation().getIcon();
            label.setIcon(icon);
            return label;
          }
        });
    JScrollPane pane = ScrollPaneFactory.createScrollPane(list, true);
    pane.setBackground(getProjectsBackground());
    actionsListPanel.add(pane, BorderLayout.CENTER);
    if (backAction != null) {
      final JLabel back = new JLabel(AllIcons.Actions.Back);
      back.setBorder(JBUI.Borders.empty(3, 7, 10, 7));
      back.setHorizontalAlignment(SwingConstants.LEFT);
      new ClickListener() {
        @Override
        public boolean onClick(@NotNull MouseEvent event, int clickCount) {
          backAction.run();
          return true;
        }
      }.installOn(back);
      actionsListPanel.add(back, BorderLayout.SOUTH);
    }
    final Ref<Component> selected = Ref.create();
    final JPanel main = new JPanel(new BorderLayout());
    main.add(actionsListPanel, BorderLayout.WEST);

    ListSelectionListener selectionListener =
        new ListSelectionListener() {
          @Override
          public void valueChanged(ListSelectionEvent e) {
            if (e.getValueIsAdjusting()) {
              // Update when a change has been finalized.
              // For instance, selecting an element with mouse fires two consecutive
              // ListSelectionEvent events.
              return;
            }
            if (!selected.isNull()) {
              main.remove(selected.get());
            }
            Object value = list.getSelectedValue();
            if (value instanceof AbstractActionWithPanel) {
              JPanel panel = ((AbstractActionWithPanel) value).createPanel();
              panel.setBorder(JBUI.Borders.empty(7, 10));
              selected.set(panel);
              main.add(selected.get());

              for (JButton button : UIUtil.findComponentsOfType(main, JButton.class)) {
                if (button.getClientProperty(DialogWrapper.DEFAULT_ACTION) == Boolean.TRUE) {
                  parent.getRootPane().setDefaultButton(button);
                  break;
                }
              }

              main.revalidate();
              main.repaint();
            }
          }
        };
    list.addListSelectionListener(selectionListener);
    if (backAction != null) {
      new AnAction() {
        @Override
        public void actionPerformed(@NotNull AnActionEvent e) {
          backAction.run();
        }
      }.registerCustomShortcutSet(KeyEvent.VK_ESCAPE, 0, main);
    }
    return Pair.create(main, list);
  }
 @Override
 public boolean isPopup() {
   return myGroup.isPopup();
 }