@atlaskit/editor-plugin-block-controls/dist/es2019/editor-commands/map-preserved-selection.js

Block controls plugin for @atlaskit/editor-core

import { key } from '../pm-plugins/main';

/**
 * Applies metadata to the transaction which can be used to apply custom mapping
 * to the preserved selection.
 *
 * This can be used when nodes are transformed/moved in a way that natural mapping
 * would not correctly update the preserved selection.
 *
 * @param preservedSelectionMapping The mapping to apply to the preserved selection.
 * @returns An editor command that sets the preserved selection mapping in the transaction metadata.
 */
export const mapPreservedSelection = mapping => ({
  tr
}) => {
  const currMeta = tr.getMeta(key);
  return tr.setMeta(key, {
    ...currMeta,
    preservedSelectionMapping: mapping
  });
};