react-loadable flushModuleIds / flushServerSideRequires

react-loadable

"use strict";

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

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

exports.default = Loadable;

var _react = require("react");

var _react2 = _interopRequireDefault(_react);

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

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var isWebpack = typeof __webpack_require__ !== "undefined";
var requireFn = isWebpack ? __webpack_require__ : module.require.bind(module);

var babelInterop = function babelInterop(obj) {
  // $FlowIgnore
  return obj && obj.__esModule ? obj.default : obj;
};

let moduleIds = [];

function Loadable(opts) {
  var loader = opts.loader;
  var LoadingComponent = opts.LoadingComponent;
  var delay = opts.delay || 200;
  var serverSideRequirePath = opts.serverSideRequirePath;
  var webpackRequireWeakId = opts.webpackRequireWeakId;
  var resolveModuleFn = opts.resolveModule ? opts.resolveModule : babelInterop;

  var isLoading = false;

  var outsideComponent = null;
  var outsidePromise = null;
  var outsideError = null;

  var tryRequire = function tryRequire(pathOrId) {
    try {
      // $FlowIgnore
      return resolveModuleFn(requireFn(pathOrId));
    } catch (err) {}
    return null;
  };

  if (!isWebpack && serverSideRequirePath) {
    outsideComponent = tryRequire(serverSideRequirePath);
  }

  var load = function load() {
    if (!outsidePromise) {
      isLoading = true;
      outsidePromise = loader().then(function (Component) {
        isLoading = false;
        outsideComponent = resolveModuleFn(Component);
      }).catch(function (error) {
        isLoading = false;
        outsideError = error;
      });
    }
    return outsidePromise;
  };

  return function (_React$Component) {
    _inherits(Loadable, _React$Component);

    _createClass(Loadable, null, [{
      key: "preload",
      value: function preload() {
        load();
      }
    }]);

    function Loadable(props) {
      _classCallCheck(this, Loadable);

      var _this = _possibleConstructorReturn(this, (Loadable.__proto__ || Object.getPrototypeOf(Loadable)).call(this, props));

      // TODO: could this happen in below condition?
      moduleIds.push(webpackRequireWeakId());

      if (!outsideComponent && isWebpack && webpackRequireWeakId) {
        var weakId = webpackRequireWeakId();
        if (__webpack_modules__[weakId]) {
          // if it's not in webpack modules, we wont be able
          // to load it. If we attempt to, we mess up webpack's
          // internal state, so only tryRequire if it's already
          // in webpack modules.
          outsideComponent = tryRequire(weakId);
        }
      }

      _this.state = {
        error: outsideError,
        pastDelay: false,
        Component: outsideComponent
      };
      return _this;
    }

    _createClass(Loadable, [{
      key: "componentWillMount",
      value: function componentWillMount() {
        var _this2 = this;

        this._mounted = true;

        if (this.state.Component) {
          return;
        }

        this._timeout = setTimeout(function () {
          _this2.setState({ pastDelay: true });
        }, delay);

        load().then(function () {
          if (!_this2._mounted) return;
          clearTimeout(_this2._timeout);
          _this2.setState({
            error: outsideError,
            pastDelay: false,
            Component: outsideComponent
          });
        });
      }
    }, {
      key: "componentWillUnmount",
      value: function componentWillUnmount() {
        this._mounted = false;
        clearTimeout(this._timeout);
      }
    }, {
      key: "render",
      value: function render() {
        var _state = this.state,
            pastDelay = _state.pastDelay,
            error = _state.error,
            Component = _state.Component;


        if (isLoading || error) {
          return _react2.default.createElement(LoadingComponent, {
            isLoading: isLoading,
            pastDelay: pastDelay,
            error: error
          });
        } else if (Component) {
          return _react2.default.createElement(Component, this.props);
        } else {
          return null;
        }
      }
    }]);

    return Loadable;
  }(_react2.default.Component);
}

Loadable.flushModuleIds = () => {
  const ret = moduleIds;
  moduleIds = [];
  return ret;
};