react-universal-component/dist/index.js

A higher order component for loading components with promises

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.setHasBabelPlugin = exports.ReportChunks = exports.MODULE_IDS = exports.CHUNK_NAMES = undefined;

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

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; }; }();

var _requireUniversalModule = require('./requireUniversalModule');

Object.defineProperty(exports, 'CHUNK_NAMES', {
  enumerable: true,
  get: function get() {
    return _requireUniversalModule.CHUNK_NAMES;
  }
});
Object.defineProperty(exports, 'MODULE_IDS', {
  enumerable: true,
  get: function get() {
    return _requireUniversalModule.MODULE_IDS;
  }
});

var _reportChunks = require('./report-chunks');

Object.defineProperty(exports, 'ReportChunks', {
  enumerable: true,
  get: function get() {
    return _interopRequireDefault(_reportChunks).default;
  }
});
exports.default = universal;

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _hoistNonReactStatics = require('hoist-non-react-statics');

var _hoistNonReactStatics2 = _interopRequireDefault(_hoistNonReactStatics);

var _requireUniversalModule2 = _interopRequireDefault(_requireUniversalModule);

var _context = require('./context');

var _context2 = _interopRequireDefault(_context);

var _utils = require('./utils');

var _helpers = require('./helpers');

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; }

function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }

var hasBabelPlugin = false;

var isHMR = function isHMR() {
  return (
    // $FlowIgnore
    module.hot && (module.hot.data || module.hot.status() === 'apply')
  );
};

var setHasBabelPlugin = exports.setHasBabelPlugin = function setHasBabelPlugin() {
  hasBabelPlugin = true;
};

function universal(asyncModule) {
  var _class, _temp;

  var opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

  var userRender = opts.render,
      _opts$loading = opts.loading,
      Loading = _opts$loading === undefined ? _utils.DefaultLoading : _opts$loading,
      _opts$error = opts.error,
      Err = _opts$error === undefined ? _utils.DefaultError : _opts$error,
      _opts$minDelay = opts.minDelay,
      minDelay = _opts$minDelay === undefined ? 0 : _opts$minDelay,
      _opts$alwaysDelay = opts.alwaysDelay,
      alwaysDelay = _opts$alwaysDelay === undefined ? false : _opts$alwaysDelay,
      _opts$testBabelPlugin = opts.testBabelPlugin,
      testBabelPlugin = _opts$testBabelPlugin === undefined ? false : _opts$testBabelPlugin,
      _opts$loadingTransiti = opts.loadingTransition,
      loadingTransition = _opts$loadingTransiti === undefined ? true : _opts$loadingTransiti,
      options = _objectWithoutProperties(opts, ['render', 'loading', 'error', 'minDelay', 'alwaysDelay', 'testBabelPlugin', 'loadingTransition']);

  var renderFunc = userRender || (0, _utils.createDefaultRender)(Loading, Err);

  var isDynamic = hasBabelPlugin || testBabelPlugin;
  options.isDynamic = isDynamic;
  options.usesBabelPlugin = hasBabelPlugin;
  options.modCache = {};
  options.promCache = {};

  return _temp = _class = function (_React$Component) {
    _inherits(UniversalComponent, _React$Component);

    _createClass(UniversalComponent, [{
      key: 'requireAsyncInner',
      value: function requireAsyncInner(requireAsync, props, state, isMount) {
        var _this2 = this;

        if (!state.mod && loadingTransition) {
          this.update({ mod: null, props: props }); // display `loading` during componentWillReceiveProps
        }

        var time = new Date();

        requireAsync(props).then(function (mod) {
          var state = { mod: mod, props: props };

          var timeLapsed = new Date() - time;
          if (timeLapsed < minDelay) {
            var extraDelay = minDelay - timeLapsed;
            return setTimeout(function () {
              return _this2.update(state, isMount);
            }, extraDelay);
          }

          _this2.update(state, isMount);
        }).catch(function (error) {
          return _this2.update({ error: error, props: props });
        });
      }
    }, {
      key: 'handleBefore',
      value: function handleBefore(isMount, isSync) {
        var isServer = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

        if (this.props.onBefore) {
          var onBefore = this.props.onBefore;

          var info = { isMount: isMount, isSync: isSync, isServer: isServer };
          onBefore(info);
        }
      }
    }, {
      key: 'handleAfter',
      value: function handleAfter(state, isMount, isSync, isServer) {
        var mod = state.mod,
            error = state.error;


        if (mod && !error) {
          (0, _hoistNonReactStatics2.default)(UniversalComponent, mod, {
            preload: true,
            preloadWeak: true
          });

          if (this.props.onAfter) {
            var onAfter = this.props.onAfter;

            var info = { isMount: isMount, isSync: isSync, isServer: isServer };
            onAfter(info, mod);
          }
        } else if (error && this.props.onError) {
          this.props.onError(error);
        }

        this.setState(state);
      }
      // $FlowFixMe

    }, {
      key: 'init',
      value: function init(props) {
        var _req = (0, _requireUniversalModule2.default)(asyncModule, options, props),
            addModule = _req.addModule,
            requireSync = _req.requireSync,
            requireAsync = _req.requireAsync,
            asyncOnly = _req.asyncOnly;

        var mod = void 0;

        try {
          mod = requireSync(props);
        } catch (error) {
          return (0, _helpers.__update)(props, { error: error, props: props }, this._initialized);
        }

        this._asyncOnly = asyncOnly;
        var chunkName = addModule(props); // record the module for SSR flushing :)
        if (this.context && this.context.report) {
          this.context.report(chunkName);
        }

        if (mod || _utils.isServer) {
          this.handleBefore(true, true, _utils.isServer);
          return (0, _helpers.__update)(props, { asyncOnly: asyncOnly, props: props, mod: mod }, this._initialized, true, true, _utils.isServer);
        }

        this.handleBefore(true, false);
        this.requireAsyncInner(requireAsync, props, { props: props, asyncOnly: asyncOnly, mod: mod }, true);
        return { mod: mod, asyncOnly: asyncOnly, props: props };
      }
    }], [{
      key: 'preload',
      value: function preload(props) {
        props = props || {};

        var _req2 = (0, _requireUniversalModule2.default)(asyncModule, options, props),
            requireAsync = _req2.requireAsync,
            requireSync = _req2.requireSync;

        var mod = void 0;

        try {
          mod = requireSync(props);
        } catch (error) {
          return Promise.reject(error);
        }

        return Promise.resolve().then(function () {
          if (mod) return mod;
          return requireAsync(props);
        }).then(function (mod) {
          (0, _hoistNonReactStatics2.default)(UniversalComponent, mod, {
            preload: true,
            preloadWeak: true
          });
          return mod;
        });
      }
      /* eslint-enable react/sort-comp */

      /* eslint-disable react/sort-comp */

    }, {
      key: 'preloadWeak',
      value: function preloadWeak(props) {
        props = props || {};

        var _req3 = (0, _requireUniversalModule2.default)(asyncModule, options, props),
            requireSync = _req3.requireSync;

        var mod = requireSync(props);
        if (mod) {
          (0, _hoistNonReactStatics2.default)(UniversalComponent, mod, {
            preload: true,
            preloadWeak: true
          });
        }

        return mod;
      }
    }]);

    function UniversalComponent(props, context) {
      _classCallCheck(this, UniversalComponent);

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

      _this.update = function (state) {
        var isMount = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
        var isSync = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
        var isServer = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;

        if (!_this._initialized) return;
        if (!state.error) state.error = null;

        _this.handleAfter(state, isMount, isSync, isServer);
      };

      _this.state = _this.init(_this.props);
      // $FlowFixMe
      _this.state.error = null;
      return _this;
    }

    _createClass(UniversalComponent, [{
      key: 'componentDidMount',
      value: function componentDidMount() {
        this._initialized = true;
      }
    }, {
      key: 'componentDidUpdate',
      value: function componentDidUpdate(prevProps) {
        var _this3 = this;

        if (isDynamic || this._asyncOnly) {
          var _req4 = (0, _requireUniversalModule2.default)(asyncModule, options, this.props, prevProps),
              requireSync = _req4.requireSync,
              requireAsync = _req4.requireAsync,
              shouldUpdate = _req4.shouldUpdate;

          if (shouldUpdate(this.props, prevProps)) {
            var mod = void 0;

            try {
              mod = requireSync(this.props);
            } catch (error) {
              return this.update({ error: error });
            }

            this.handleBefore(false, !!mod);

            if (!mod) {
              return this.requireAsyncInner(requireAsync, this.props, { mod: mod });
            }

            var state = { mod: mod };

            if (alwaysDelay) {
              if (loadingTransition) this.update({ mod: null }); // display `loading` during componentWillReceiveProps
              setTimeout(function () {
                return _this3.update(state, false, true);
              }, minDelay);
              return;
            }

            this.update(state, false, true);
          }
        }
      }
    }, {
      key: 'componentWillUnmount',
      value: function componentWillUnmount() {
        this._initialized = false;
      }
    }, {
      key: 'render',
      value: function render() {
        var _props = this.props,
            isLoading = _props.isLoading,
            userError = _props.error,
            props = _objectWithoutProperties(_props, ['isLoading', 'error']);

        var _state = this.state,
            mod = _state.mod,
            error = _state.error;

        return renderFunc(props, mod, isLoading, userError || error);
      }
    }], [{
      key: 'getDerivedStateFromProps',
      value: function getDerivedStateFromProps(nextProps, currentState) {
        var _req5 = (0, _requireUniversalModule2.default)(asyncModule, options, nextProps, currentState.props),
            requireSync = _req5.requireSync,
            shouldUpdate = _req5.shouldUpdate;

        if (isHMR() && shouldUpdate(currentState.props, nextProps)) {
          var mod = requireSync(nextProps);
          return _extends({}, currentState, { mod: mod });
        }
        return null;
      }
    }]);

    return UniversalComponent;
  }(_react2.default.Component), _class.contextType = _context2.default, _temp;
}