ScrollHandler.prototype._initScrollParent = function()

in src/main/jbake/assets/js/tree.jquery.js [2074:2120]
37 lines of code
8 McCabe index (conditional complexity)

  ScrollHandler.prototype._initScrollParent = function() {
    var $scroll_parent, getParentWithOverflow, setDocumentAsScrollParent;
    getParentWithOverflow = (function(_this) {
      return function() {
        var css_values, el, hasOverFlow, i, len, ref;
        css_values = ['overflow', 'overflow-y'];
        hasOverFlow = function(el) {
          var css_value, i, len, ref;
          for (i = 0, len = css_values.length; i < len; i++) {
            css_value = css_values[i];
            if ((ref = $.css(el, css_value)) === 'auto' || ref === 'scroll') {
              return true;
            }
          }
          return false;
        };
        if (hasOverFlow(_this.tree_widget.$el[0])) {
          return _this.tree_widget.$el;
        }
        ref = _this.tree_widget.$el.parents();
        for (i = 0, len = ref.length; i < len; i++) {
          el = ref[i];
          if (hasOverFlow(el)) {
            return $(el);
          }
        }
        return null;
      };
    })(this);
    setDocumentAsScrollParent = (function(_this) {
      return function() {
        _this.scroll_parent_top = 0;
        return _this.$scroll_parent = null;
      };
    })(this);
    if (this.tree_widget.$el.css('position') === 'fixed') {
      setDocumentAsScrollParent();
    }
    $scroll_parent = getParentWithOverflow();
    if ($scroll_parent && $scroll_parent.length && $scroll_parent[0].tagName !== 'HTML') {
      this.$scroll_parent = $scroll_parent;
      this.scroll_parent_top = this.$scroll_parent.offset().top;
    } else {
      setDocumentAsScrollParent();
    }
    return this.is_initialized = true;
  };