code: function($list) {
          return $list.children('li,.treemap-data-item').map(function() {
              var $item = $(this),
                  item = $item.data(),
                  $text = $item.children('.text'),
                  $html = $item.children('.content'),
                  $children = $item.children('ul,.treemap-data-list');
              if($text.length) item.text = $text.text();
              if($html.length) item.html = $html.html();
              if($children.length) {
                  item.children = getDataFromUlList($children);
              }
              if(!item.text && !item.html) {
                  var $content = $item.children(':not(ul,.treemap-data-list)');
                  var $itemClone = $item.clone();
                  $itemClone.find('ul,.treemap-data-list').remove();
                  if(!$content.length) {
                      item.text = $itemClone.text();
                  } else {
                      item.html = $itemClone.html();
                  }
              }
              return item;
          }).get();
      }
docs: var  DEFAULT_NODE = { id: uuid(),           // uuid text: '',             // main text, html: '',             // main text as html format style: null,          // node element style textColor: '',        // text color color: '',            // background color border: '',           // border style, tooltip: ''           // node caption attrs: null           // attrs title: ''             // node title tooltip: ''           // node tooltip };