async-component
Version:
```jsx harmony import asyncComponent from 'async-component';
58 lines (57 loc) • 2.33 kB
JavaScript
;
var __extends = (this && this.__extends) || (function () {
var extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var __assign = (this && this.__assign) || Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
Object.defineProperty(exports, "__esModule", { value: true });
var React = require("react");
var react_1 = require("react");
var asyncComponent = function (fetchComponent, Loader) {
return /** @class */ (function (_super) {
__extends(AsyncComponent, _super);
function AsyncComponent() {
var _this = _super !== null && _super.apply(this, arguments) || this;
_this.state = {
Element: AsyncComponent.Component
};
return _this;
}
AsyncComponent.prototype.componentDidMount = function () {
var _this = this;
this._isMounted = true;
if (!AsyncComponent.Component) {
fetchComponent().then(function (Element) {
AsyncComponent.Component = Element;
if (_this._isMounted) {
_this.setState({ Element: Element });
}
});
}
};
AsyncComponent.prototype.componentWillUnmount = function () {
this._isMounted = false;
};
AsyncComponent.prototype.render = function () {
var Element = this.state.Element;
if (!Element)
return Loader ? React.createElement(Loader, null) : null;
return React.createElement(Element, __assign({}, this.props));
};
return AsyncComponent;
}(react_1.Component));
};
exports.default = asyncComponent;