/**
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @format
 * @flow
 * @emails oncall+draft_js
 */
'use strict';

import type DraftEditor from "./DraftEditor.react";

const invariant = require("fbjs/lib/invariant");

const isHTMLElement = require("./isHTMLElement");

function getContentEditableContainer(editor: DraftEditor): HTMLElement {
  const editorNode = editor.editorContainer;
  invariant(editorNode, 'Missing editorNode');
  invariant(isHTMLElement(editorNode.firstChild), 'editorNode.firstChild is not an HTMLElement');
  const htmlElement = (editorNode.firstChild: any);
  return htmlElement;
}

module.exports = getContentEditableContainer;