text: /**
   * @file        find PixiJS node from react instance
   * @author      Icemic Jia <bingfeng.web@gmail.com>
   * @copyright   2017 Icemic Jia
   * @link        https://www.avgjs.org
   * @license     Apache License 2.0
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  const PIXI = require('pixi.js');
  
  export default function findPixiNode(ref) {
    const instance = ref._reactInternalInstance;
    const node = instance._renderedComponent.node || instance._mountImage;
  
    if (node) {
      return node;
    } else if (ref instanceof PIXI.DisplayObject) {
      return ref;
    }
  
    return null;
  }
  