OXIESEC PANEL

Name	Size	Modified	Perms
📁 ..	-	02/20/2020 05:44:43 AM	rwxr-xr-x
📄 Dimensions.ts	1.28 KB	02/20/2020 05:42:59 AM	rw-r--r--
📄 DomSerializer.ts	4.65 KB	02/20/2020 05:42:59 AM	rw-r--r--
📄 DomSerializerFilters.ts	6.91 KB	02/20/2020 05:43:00 AM	rw-r--r--
📄 DomSerializerPreProcess.ts	1.81 KB	02/20/2020 05:43:00 AM	rw-r--r--
📄 ElementType.ts	2.39 KB	02/20/2020 05:43:01 AM	rw-r--r--
📄 Empty.ts	2.18 KB	02/20/2020 05:43:02 AM	rw-r--r--
📄 MousePosition.ts	2.37 KB	02/20/2020 05:43:03 AM	rw-r--r--
📄 NodePath.ts	970 bytes	02/20/2020 05:43:03 AM	rw-r--r--
📄 NodeType.ts	3.37 KB	02/20/2020 05:43:04 AM	rw-r--r--
📄 PaddingBr.ts	1.7 KB	02/20/2020 05:43:04 AM	rw-r--r--
📄 Parents.ts	1020 bytes	02/20/2020 05:43:05 AM	rw-r--r--
📄 Position.ts	2.9 KB	02/20/2020 05:43:05 AM	rw-r--r--
📄 RangePoint.ts	639 bytes	02/20/2020 05:43:06 AM	rw-r--r--
📄 ScrollIntoView.ts	3.27 KB	02/20/2020 05:43:07 AM	rw-r--r--
📄 StyleSheetLoader.ts	6.49 KB	02/20/2020 05:43:08 AM	rw-r--r--
📄 TrimHtml.ts	1.62 KB	02/20/2020 05:43:08 AM	rw-r--r--
📄 TrimNode.ts	2.58 KB	02/20/2020 05:43:09 AM	rw-r--r--

Editing: Empty.ts

/**
 * Copyright (c) Tiny Technologies, Inc. All rights reserved.
 * Licensed under the LGPL or a commercial license.
 * For LGPL see License.txt in the project root for license information.
 * For commercial licenses see https://www.tiny.cloud/
 */

import { Fun } from '@ephox/katamari';
import { Compare, Element, SelectorExists } from '@ephox/sugar';
import * as CaretCandidate from '../caret/CaretCandidate';
import NodeType from './NodeType';
import TreeWalker from '../api/dom/TreeWalker';

const hasWhitespacePreserveParent = function (rootNode, node) {
  const rootElement = Element.fromDom(rootNode);
  const startNode = Element.fromDom(node);
  return SelectorExists.ancestor(startNode, 'pre,code', Fun.curry(Compare.eq, rootElement));
};

const isWhitespace = function (rootNode, node) {
  return NodeType.isText(node) && /^[ \t\r\n]*$/.test(node.data) && hasWhitespacePreserveParent(rootNode, node) === false;
};

const isNamedAnchor = function (node) {
  return NodeType.isElement(node) && node.nodeName === 'A' && node.hasAttribute('name');
};

const isContent = function (rootNode, node) {
  return (CaretCandidate.isCaretCandidate(node) && isWhitespace(rootNode, node) === false) || isNamedAnchor(node) || isBookmark(node);
};

const isBookmark = NodeType.hasAttribute('data-mce-bookmark');
const isBogus = NodeType.hasAttribute('data-mce-bogus');
const isBogusAll = NodeType.hasAttributeValue('data-mce-bogus', 'all');

const isEmptyNode = function (targetNode) {
  let node, brCount = 0;

if (isContent(targetNode, targetNode)) {
    return false;
  } else {
    node = targetNode.firstChild;
    if (!node) {
      return true;
    }

const walker = new TreeWalker(node, targetNode);
    do {
      if (isBogusAll(node)) {
        node = walker.next(true);
        continue;
      }

if (isBogus(node)) {
        node = walker.next();
        continue;
      }

if (NodeType.isBr(node)) {
        brCount++;
        node = walker.next();
        continue;
      }

if (isContent(targetNode, node)) {
        return false;
      }

node = walker.next();
    } while (node);

return brCount <= 1;
  }
};

const isEmpty = (elm) => isEmptyNode(elm.dom());

export default {
  isEmpty
};