JqTreeWidget.prototype._loadDataFromUrl = function()

in js/tree.jquery.js [2660:2747]
67 lines of code
13 McCabe index (conditional complexity)

  JqTreeWidget.prototype._loadDataFromUrl = function(url_info, parent_node, on_finished) {
    var $el, addLoadingClass, handeLoadData, handleError, handleSuccess, loadDataFromUrlInfo, parseUrlInfo, removeLoadingClass;
    $el = null;
    addLoadingClass = (function(_this) {
      return function() {
        if (parent_node) {
          $el = $(parent_node.element);
        } else {
          $el = _this.element;
        }
        $el.addClass('jqtree-loading');
        return _this._notifyLoading(true, parent_node, $el);
      };
    })(this);
    removeLoadingClass = (function(_this) {
      return function() {
        if ($el) {
          $el.removeClass('jqtree-loading');
          return _this._notifyLoading(false, parent_node, $el);
        }
      };
    })(this);
    parseUrlInfo = function() {
      if ($.type(url_info) === 'string') {
        return {
          url: url_info
        };
      }
      if (!url_info.method) {
        url_info.method = 'get';
      }
      return url_info;
    };
    handeLoadData = (function(_this) {
      return function(data) {
        removeLoadingClass();
        _this._loadData(data, parent_node);
        if (on_finished && $.isFunction(on_finished)) {
          return on_finished();
        }
      };
    })(this);
    handleSuccess = (function(_this) {
      return function(response) {
        var data;
        if ($.isArray(response) || typeof response === 'object') {
          data = response;
        } else if (data != null) {
          data = $.parseJSON(response);
        } else {
          data = [];
        }
        if (_this.options.dataFilter) {
          data = _this.options.dataFilter(data);
        }
        return handeLoadData(data);
      };
    })(this);
    handleError = (function(_this) {
      return function(response) {
        removeLoadingClass();
        if (_this.options.onLoadFailed) {
          return _this.options.onLoadFailed(response);
        }
      };
    })(this);
    loadDataFromUrlInfo = function() {
      url_info = parseUrlInfo();
      return $.ajax($.extend({}, url_info, {
        method: url_info.method != null ? url_info.method.toUpperCase() : 'GET',
        cache: false,
        dataType: 'json',
        success: handleSuccess,
        error: handleError
      }));
    };
    if (!url_info) {
      url_info = this._getDataUrlInfo(parent_node);
    }
    addLoadingClass();
    if (!url_info) {
      removeLoadingClass();
    } else if ($.isArray(url_info)) {
      handeLoadData(url_info);
    } else {
      loadDataFromUrlInfo();
    }
  };