hztianxu-draft-js-plugins/draft-js-video-plugin/src/video/modifiers/addVideo.js

A Plugin Architecture on top of Draft.JS

import {
  AtomicBlockUtils,
  Entity,
  RichUtils,
} from 'draft-js';

import * as types from '../constants';

export default function addVideo(editorState, { src }) {
  if (RichUtils.getCurrentBlockType(editorState) === types.ATOMIC) {
    return editorState;
  }

  const entityKey = Entity.create(
    types.VIDEOTYPE,
    'IMMUTABLE',
    {
      src,
    }
  );
  return AtomicBlockUtils.insertAtomicBlock(editorState, entityKey, ' ');
}