material-ui-popup-state/useEvent.js

easiest way to create menus, popovers, and poppers with material-ui

"use strict";

var _typeof = require("@babel/runtime/helpers/typeof");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.useEvent = useEvent;
var React = _interopRequireWildcard(require("react"));
function _interopRequireWildcard(e, t) { if ("function" == typeof WeakMap) var r = new WeakMap(), n = new WeakMap(); return (_interopRequireWildcard = function _interopRequireWildcard(e, t) { if (!t && e && e.__esModule) return e; var o, i, f = { __proto__: null, "default": e }; if (null === e || "object" != _typeof(e) && "function" != typeof e) return f; if (o = t ? n : r) { if (o.has(e)) return o.get(e); o.set(e, f); } for (var _t in e) "default" !== _t && {}.hasOwnProperty.call(e, _t) && ((i = (o = Object.defineProperty) && Object.getOwnPropertyDescriptor(e, _t)) && (i.get || i.set) ? o(f, _t, i) : f[_t] = e[_t]); return f; })(e, t); }
function useEvent(handler) {
  // istanbul ignore next
  if (typeof window === 'undefined') {
    // useLayoutEffect doesn't work on the server side, don't bother
    // trying to make callback functions stable
    return handler;
  }
  var handlerRef = React.useRef(null);
  React.useLayoutEffect(function () {
    handlerRef.current = handler;
  });
  return React.useCallback(function () {
    var _handlerRef$current;
    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }
    (_handlerRef$current = handlerRef.current) === null || _handlerRef$current === void 0 || _handlerRef$current.call.apply(_handlerRef$current, [handlerRef].concat(args));
  }, []);
}
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