@atlaskit/editor-jira-transformer/dist/esm/fix-doc.js

Editor JIRA transformer's

function getNodeName(node) {
  return node && node.nodeName.toUpperCase();
}
function isMedia(node) {
  if (!node) {
    return false;
  }
  if (getNodeName(node) === 'SPAN' && node instanceof HTMLElement) {
    return !!node.querySelector('a > jira-attachment-thumbnail > img[data-attachment-type="thumbnail"], ' + 'a[data-attachment-type="file"]');
  }
  return false;
}
function repairParagraph(p) {
  var paragraphs = [];
  var buffer = [];
  var mediaGroupFound = false;
  var skipBuffer = false;
  var processMedia = function processMedia() {
    if (buffer.length) {
      var head = buffer[0];
      if (getNodeName(head) === 'BR') {
        buffer.shift();
      }
      paragraphs.push(buffer);
      buffer = [];
    }
  };
  for (var i = 0, length = p.childNodes.length; i < length; i++) {
    var node = p.childNodes[i];
    skipBuffer = false;
    // [..., M, BR, ...]
    if (getNodeName(node) === 'BR') {
      // [mmm, M, BR, ...]
      if (mediaGroupFound) {
        processMedia();
        mediaGroupFound = false;
        skipBuffer = true;
      }
      // [..., BR, M, ...]
      if (isMedia(node.nextSibling)) {
        mediaGroupFound = true;
        if (buffer.length) {
          paragraphs.push(buffer);
          buffer = [];
        }
      }
    } else if (isMedia(node)) {
      // [M, ...]
      if (node.previousSibling === null) {
        mediaGroupFound = true;
      }
    } else {
      if (mediaGroupFound) {
        // Skip white space characters inside media
        if (getNodeName(node) === '#TEXT' && (node.textContent || '').trim() === '') {
          continue;
        }
        buffer = (paragraphs.pop() || []).concat(buffer);
        mediaGroupFound = false;
      }
    }
    if (!skipBuffer) {
      buffer.push(node);
    }
  }
  if (mediaGroupFound) {
    processMedia();
  } else {
    paragraphs.push(buffer);
  }
  if (paragraphs.length > 1) {
    var fragment = document.createDocumentFragment();
    paragraphs.forEach(function (childP) {
      var innerP = document.createElement('p');
      childP.forEach(function (child) {
        return innerP.appendChild(child);
      });
      fragment.appendChild(innerP);
    });

    // Replace old P
    // Ignored via go/ees005
    // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
    var parent = p.parentNode;
    parent.insertBefore(fragment, p.nextSibling);
    // IE11 doesn't support remove
    parent.removeChild(p);
  }
}
export default function (doc) {
  var paragraphs = doc.querySelectorAll('p');
  for (var i = 0, length = paragraphs.length; i < length; i++) {
    repairParagraph(paragraphs[i]);
  }
  return doc;
}