@atlaskit/adf-schema/dist/es2019/schema/marks/indentation.js

Shared package that contains the ADF-schema (json) and ProseMirror node/mark specs

import { indentation as indentationFactory } from '../../next-schema/generated/markTypes';

/**
 * @name indentation_mark
 */

export const indentation = indentationFactory({
  parseDOM: [{
    tag: 'div.fabric-editor-indentation-mark',
    getAttrs(dom) {
      const level = +(dom.getAttribute('data-level') || '0');
      return {
        level: level > 6 ? 6 : level < 1 ? false : level
      };
    }
  }],
  toDOM(mark) {
    return ['div', {
      class: 'fabric-editor-block-mark fabric-editor-indentation-mark',
      'data-level': mark.attrs.level
    }, 0];
  }
});