d2-ui/node_modules-react-15/material-ui/utils/childUtils.js

d2-ui

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.createChildFragment = createChildFragment;
exports.extendChildren = extendChildren;

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _reactAddonsCreateFragment = require('react-addons-create-fragment');

var _reactAddonsCreateFragment2 = _interopRequireDefault(_reactAddonsCreateFragment);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function createChildFragment(fragments) {
  var newFragments = {};
  var validChildrenCount = 0;
  var firstKey = void 0;

  // Only create non-empty key fragments
  for (var key in fragments) {
    var currentChild = fragments[key];

    if (currentChild) {
      if (validChildrenCount === 0) firstKey = key;
      newFragments[key] = currentChild;
      validChildrenCount++;
    }
  }

  if (validChildrenCount === 0) return undefined;
  if (validChildrenCount === 1) return newFragments[firstKey];
  return (0, _reactAddonsCreateFragment2.default)(newFragments);
}

function extendChildren(children, extendedProps, extendedChildren) {
  return _react2.default.isValidElement(children) ? _react2.default.Children.map(children, function (child) {
    var newProps = typeof extendedProps === 'function' ? extendedProps(child) : extendedProps;

    var newChildren = typeof extendedChildren === 'function' ? extendedChildren(child) : extendedChildren ? extendedChildren : child.props.children;

    return _react2.default.cloneElement(child, newProps, newChildren);
  }) : children;
}