public LibraryBundlingEditorComponent(@NotNull Project project) {
    myProject = project;
    GuiUtils.replaceJSplitPaneWithIDEASplitter(myMainPanel);
    ((JBSplitter) myMainPanel.getComponent(0)).setProportion(0.4f);

    myRulesPanel.add(
        ToolbarDecorator.createDecorator(myRulesList)
            .setAddAction(
                new AnActionButtonRunnable() {
                  @Override
                  public void run(AnActionButton button) {
                    updateCurrentRule();
                    myRulesModel.add(new LibraryBundlificationRule());
                    myRulesList.setSelectedIndex(myRulesModel.getSize() - 1);
                    updateFields();
                  }
                })
            .setRemoveAction(
                new AnActionButtonRunnable() {
                  @Override
                  public void run(AnActionButton button) {
                    myLastSelected = -1;
                    if (myRulesModel.getSize() == 1) {
                      myRulesModel.setElementAt(new LibraryBundlificationRule(), 0);
                      myRulesList.setSelectedIndex(0);
                    } else {
                      int index = myRulesList.getSelectedIndex();
                      myRulesModel.remove(index);
                      myRulesList.setSelectedIndex(index > 0 ? index - 1 : 0);
                    }
                    updateFields();
                  }
                })
            .setMoveUpAction(
                new AnActionButtonRunnable() {
                  @Override
                  public void run(AnActionButton button) {
                    updateCurrentRule();
                    myLastSelected = -1;
                    ListUtil.moveSelectedItemsUp(myRulesList);
                    updateFields();
                  }
                })
            .setMoveDownAction(
                new AnActionButtonRunnable() {
                  @Override
                  public void run(AnActionButton button) {
                    updateCurrentRule();
                    myLastSelected = -1;
                    ListUtil.moveSelectedItemsDown(myRulesList);
                    updateFields();
                  }
                })
            .addExtraAction(
                new AnActionButton("Copy", PlatformIcons.COPY_ICON) {
                  @Override
                  public void actionPerformed(AnActionEvent e) {
                    updateCurrentRule();
                    int index = myRulesList.getSelectedIndex();
                    if (index >= 0) {
                      myRulesModel.add(myRulesModel.getElementAt(index).copy());
                      myRulesList.setSelectedIndex(myRulesModel.getSize() - 1);
                      updateFields();
                    }
                  }

                  @Override
                  public boolean isEnabled() {
                    return myRulesList.getSelectedIndex() >= 0;
                  }
                })
            .createPanel(),
        BorderLayout.CENTER);

    myRulesModel = new CollectionListModel<>();
    //noinspection unchecked
    myRulesList.setModel(myRulesModel);
    myRulesList.addListSelectionListener(
        new ListSelectionListener() {
          @Override
          public void valueChanged(ListSelectionEvent e) {
            updateCurrentRule();
            updateFields();
          }
        });
  }