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frontend/node_modules/rc-util/es/Dom/findDOMNode.js

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+import _typeof from "@babel/runtime/helpers/esm/typeof";
+import React from 'react';
+import ReactDOM from 'react-dom';
+export function isDOM(node) {
+  // https://developer.mozilla.org/en-US/docs/Web/API/Element
+  // Since XULElement is also subclass of Element, we only need HTMLElement and SVGElement
+  return node instanceof HTMLElement || node instanceof SVGElement;
+}
+
+/**
+ * Retrieves a DOM node via a ref, and does not invoke `findDOMNode`.
+ */
+export function getDOM(node) {
+  if (node && _typeof(node) === 'object' && isDOM(node.nativeElement)) {
+    return node.nativeElement;
+  }
+  if (isDOM(node)) {
+    return node;
+  }
+  return null;
+}
+
+/**
+ * Return if a node is a DOM node. Else will return by `findDOMNode`
+ */
+export default function findDOMNode(node) {
+  var domNode = getDOM(node);
+  if (domNode) {
+    return domNode;
+  }
+  if (node instanceof React.Component) {
+    var _ReactDOM$findDOMNode;
+    return (_ReactDOM$findDOMNode = ReactDOM.findDOMNode) === null || _ReactDOM$findDOMNode === void 0 ? void 0 : _ReactDOM$findDOMNode.call(ReactDOM, node);
+  }
+  return null;
+}