seahub/frontend/src/components/toast/toast.js

import React from 'react';
import ReactDOM from 'react-dom';
import NoticeContainer from './notice-container';
import './toast.css';

function createNotieContainer() {
  const div = document.createElement('div')
  document.body.appendChild(div)
  const noticeContainer = ReactDOM.render(<NoticeContainer />, div)
  return {
      addNotice(notice) {
          return noticeContainer.addNotice(notice)
      },
      destroy() {
          ReactDOM.unmountComponentAtNode(div)
          document.body.removeChild(div)
      }
  }
}

let noticeContainer
const notice = (type, content, duration = 2000, onClose) => {
  if (!noticeContainer) noticeContainer = createNotieContainer()
  return noticeContainer.addNotice({ type, content, duration, onClose })
}

export default {
  info(content, duration, onClose) {
      return notice('info', content, duration, onClose)
  },
  success(content, duration, onClose) {
      return notice('success', content, duration, onClose)
  },
  warning(content, duration, onClose) {
      return notice('warning', content, duration, onClose)
  },
  error(content, duration, onClose) {
      return notice('danger', content, duration, onClose)
  }
}