(function(api) {

    api.sectionConstructor['infocus-upsell'] = api.Section.extend({
        attachEvents: function() {},
        isContextuallyActive: function() {
            return true;
        }
    });
  
    const infocus_section_lists = ['Main', 'Clients', 'Logo'];
    infocus_section_lists.forEach(infocus_homepage_scroll);
  
    function infocus_homepage_scroll(item) {
        item = item.replace(/-/g, '_');
        wp.customize.section('infocus_' + item + '_section', function(section) {
            section.expanded.bind(function(isExpanding) {
                wp.customize.previewer.send(item, { expanded: isExpanding });
            });
        });
    }
  })(wp.customize);