are-message/es/helper/create-instance.js

This is a React global notification message component. It is a standalone implementation of the are-visual message component.

import React from 'react';
import ReactDOM from 'react-dom';
import MessageContainer from '../container';
import createContainer from './create-container';
var instance = null;
/**
 * 渲染 Message 容器
 */

function render(callback) {
  var called = false;

  var handleRef = function handleRef(value) {
    if (called) {
      return;
    }

    called = true;
    callback === null || callback === void 0 ? void 0 : callback(value);
  };

  ReactDOM.render( /*#__PURE__*/React.createElement(MessageContainer, {
    ref: handleRef
  }), createContainer());
}
/**
 * 获取实例
 */


export default function createInstance(callback) {
  if (instance !== null && instance !== undefined) {
    callback === null || callback === void 0 ? void 0 : callback(instance);
    return;
  }

  render(function (msgInstance) {
    instance = msgInstance;
    callback === null || callback === void 0 ? void 0 : callback(msgInstance);
  });
}