@appbuckets/react-ui-core/utils/refUtils.js

Core utilities built for AppBuckets React UI Framework

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var invariant = require('tiny-invariant');

function _interopDefaultLegacy(e) {
  return e && typeof e === 'object' && 'default' in e ? e : { default: e };
}

var invariant__default = /*#__PURE__*/ _interopDefaultLegacy(invariant);

/**
 * A function to correctly handles passing refs.
 *
 * @param ref The ref Object or Function
 * @param node The node that should by passed by ref
 */
function handleRef(ref, node) {
  // Check Ref is not a deprecated string
  // This check is necessary for JavaScript only usage
  if (process.env.NODE_ENV !== 'production') {
    invariant__default['default'](
      typeof ref !== 'string',
      [
        'String ref are not supported anymore. This is a Legacy API and will be likely to be removed',
        'in one of the future release of React',
      ].join(' ')
    );
  }
  if (typeof ref === 'function') {
    ref(node);
    return;
  }
  if (ref !== null && typeof ref === 'object') {
    // The current property is defined as readonly
    // but this ia valid way to assign ref, because is a mutable object
    ref.current = node;
  }
}
var refObjectsStore = new WeakMap();
var nullRefObject = { current: null };
function toRefObject(node) {
  // If no node is passed, return null ref
  if (node === null) {
    return nullRefObject;
  }
  // If node has been previously stored, get cached
  if (refObjectsStore.has(node)) {
    return refObjectsStore.get(node);
  }
  // Cache the ref
  var refObject = { current: node };
  refObjectsStore.set(node, refObject);
  return refObject;
}
/**
 * Check if a thing is a valid React Ref Object
 *
 * @param ref Thing to Check
 */
function isRefObject(ref) {
  return (
    ref !== null &&
    typeof ref === 'object' &&
    Object.prototype.hasOwnProperty.call(ref, 'current')
  );
}

exports.handleRef = handleRef;
exports.isRefObject = isRefObject;
exports.toRefObject = toRefObject;