getScrollParent: function()

in packages/fbjs/src/__forks__/Style.js [45:59]

• 12 lines of code
• 8 McCabe index (conditional complexity)

  getScrollParent: function(node) {
    if (!node) {
      return null;
    }
    var ownerDocument = node.ownerDocument;
    while (node && node !== ownerDocument.body) {
      if (_isNodeScrollable(node, 'overflow') ||
          _isNodeScrollable(node, 'overflowY') ||
          _isNodeScrollable(node, 'overflowX')) {
        return node;
      }
      node = node.parentNode;
    }
    return ownerDocument.defaultView || ownerDocument.parentWindow;
  },