@blocknote/core/src/extensions/Collaboration/UndoPlugin.ts

A "Notion-style" block-based extensible text editor built on top of Prosemirror and Tiptap.

import { yUndoPlugin } from "y-prosemirror";
import { BlockNoteExtension } from "../../editor/BlockNoteExtension.js";

export class UndoPlugin extends BlockNoteExtension {
  public static key() {
    return "yUndoPlugin";
  }

  constructor() {
    super();
    this.addProsemirrorPlugin(yUndoPlugin());
  }

  public get priority() {
    return 1000;
  }
}