@atlaskit/editor-common/dist/es2019/lists/analytics.js

A package that contains common classes and components for editor and renderer

import { isListItemNode, isListNode } from '../utils';
import { getListItemAttributes } from './selection';
export const getCommonListAnalyticsAttributes = tr => {
  const {
    selection: {
      $from,
      $to
    }
  } = tr;
  const fromAttrs = getListItemAttributes($from);
  const toAttrs = getListItemAttributes($to);
  return {
    itemIndexAtSelectionStart: fromAttrs.itemIndex,
    itemIndexAtSelectionEnd: toAttrs.itemIndex,
    indentLevelAtSelectionStart: fromAttrs.indentLevel,
    indentLevelAtSelectionEnd: toAttrs.indentLevel,
    itemsInSelection: countListItemsInSelection(tr)
  };
};
export const countListItemsInSelection = tr => {
  const {
    from,
    to
  } = tr.selection;
  if (from === to) {
    return 1;
  }
  let count = 0;
  const listSlice = tr.doc.cut(from, to);
  listSlice.content.nodesBetween(0, listSlice.content.size, (node, pos, parent, index) => {
    if (parent && isListItemNode(parent) && !isListNode(node) && index === 0) {
      count++;
    }
  });
  return count;
};