@NotNull
    @Override
    public ToolbarComponents init() {
      ToolbarComponents components = new ToolbarComponents();

      FrameDiffTool.ToolbarComponents init = myViewer.init();
      components.statusPanel = init.statusPanel;
      components.toolbarActions = init.toolbarActions;

      components.closeHandler = () -> MergeUtil.showExitWithoutApplyingChangesDialog(this, myMergeRequest, myMergeContext, false);

      return components;
    }
@NotNull
    @Override
    public ToolbarComponents init()