react-smooth/es6/AnimateManager.js

react animation library

function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
function _toArray(arr) { return _arrayWithHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableRest(); }
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; return arr2; }
function _iterableToArray(iter) { if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter); }
function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
import setRafTimeout from './setRafTimeout';
export default function createAnimateManager() {
  var currStyle = {};
  var handleChange = function handleChange() {
    return null;
  };
  var shouldStop = false;
  var setStyle = function setStyle(_style) {
    if (shouldStop) {
      return;
    }
    if (Array.isArray(_style)) {
      if (!_style.length) {
        return;
      }
      var styles = _style;
      var _styles = _toArray(styles),
        curr = _styles[0],
        restStyles = _styles.slice(1);
      if (typeof curr === 'number') {
        setRafTimeout(setStyle.bind(null, restStyles), curr);
        return;
      }
      setStyle(curr);
      setRafTimeout(setStyle.bind(null, restStyles));
      return;
    }
    if (_typeof(_style) === 'object') {
      currStyle = _style;
      handleChange(currStyle);
    }
    if (typeof _style === 'function') {
      _style();
    }
  };
  return {
    stop: function stop() {
      shouldStop = true;
    },
    start: function start(style) {
      shouldStop = false;
      setStyle(style);
    },
    subscribe: function subscribe(_handleChange) {
      handleChange = _handleChange;
      return function () {
        handleChange = function handleChange() {
          return null;
        };
      };
    }
  };
}