@atlaskit/editor-plugin-metrics/dist/es2019/pm-plugins/utils/is-non-text-undo.js

Metrics plugin for @atlaskit/editor-core

import { ReplaceStep } from '@atlaskit/editor-prosemirror/transform';
export const isNonTextUndo = tr => {
  if (tr.getMeta('undoRedoPlugin$') === undefined) {
    return false;
  }
  let hasNonTextChange = false;
  tr.steps.forEach(step => {
    if (step instanceof ReplaceStep) {
      const {
        slice
      } = step;
      if (slice.content) {
        slice.content.forEach(node => {
          if (node.type.name !== 'text') {
            hasNonTextChange = true;
          }
        });
      }
    } else {
      hasNonTextChange = true;
    }
  });
  return hasNonTextChange;
};