zus/lib/dynamic.js

> a lightweight front-end framework.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = dynamic;

var _react = _interopRequireWildcard(require("react"));

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj["default"] = obj; return newObj; } }

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }

function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }

function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }

function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

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

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }

function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }

function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

var cached = {};

function registerModel(app, model) {
  model = model["default"] || model;

  if (!cached[model.namespace]) {
    app.model(model);
    cached[model.namespace] = 1;
  }
}

var defaultLoadingComponent = function defaultLoadingComponent() {
  return null;
};

function asyncComponent(config) {
  var resolve = config.resolve;
  return (
    /*#__PURE__*/
    function (_Component) {
      _inherits(DynamicComponent, _Component);

      function DynamicComponent() {
        var _getPrototypeOf2;

        var _this;

        _classCallCheck(this, DynamicComponent);

        for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
          args[_key] = arguments[_key];
        }

        _this = _possibleConstructorReturn(this, (_getPrototypeOf2 = _getPrototypeOf(DynamicComponent)).call.apply(_getPrototypeOf2, [this].concat(args)));
        _this.LoadingComponent = config.LoadingComponent || defaultLoadingComponent;
        _this.state = {
          AsyncComponent: null
        };

        _this.load();

        return _this;
      }

      _createClass(DynamicComponent, [{
        key: "componentDidMount",
        value: function componentDidMount() {
          this.mounted = true;
        }
      }, {
        key: "componentWillUnmount",
        value: function componentWillUnmount() {
          this.mounted = false;
        }
      }, {
        key: "load",
        value: function load() {
          var _this2 = this;

          resolve().then(function (m) {
            var AsyncComponent = m["default"] || m;

            if (_this2.mounted) {
              _this2.setState({
                AsyncComponent: AsyncComponent
              });
            } else {
              _this2.state.AsyncComponent = AsyncComponent;
            }
          });
        }
      }, {
        key: "render",
        value: function render() {
          var AsyncComponent = this.state.AsyncComponent;
          var LoadingComponent = this.LoadingComponent;
          if (AsyncComponent) return _react["default"].createElement(AsyncComponent, this.props);
          return _react["default"].createElement(LoadingComponent, this.props);
        }
      }]);

      return DynamicComponent;
    }(_react.Component)
  );
}

function dynamic(config) {
  var app = config.app,
      resolveModels = config.models,
      resolveComponent = config.component;
  return asyncComponent(_objectSpread({
    resolve: config.resolve || function () {
      var models = typeof resolveModels === 'function' ? resolveModels() : [];
      var component = resolveComponent();
      return new Promise(function (resolve) {
        Promise.all([].concat(_toConsumableArray(models), [component])).then(function (ret) {
          if (!models || !models.length) {
            return resolve(ret[0]);
          }

          var len = models.length;
          ret.slice(0, len).forEach(function (m) {
            m = m["default"] || m;

            if (!Array.isArray(m)) {
              m = [m];
            }

            m.map(function (_) {
              return registerModel(app, _);
            });
          });
          return resolve(ret[len]);
        });
      });
    }
  }, config));
}

dynamic.setDefaultLoadingComponent = function (LoadingComponent) {
  defaultLoadingComponent = LoadingComponent;
};