Method updateChanges

packages/core/src/editor/model/Editor.ts:432–448

* Set the alert before unload in case it's requested * and there are unsaved changes * @private

(m: any, v: any, opts: ObjectAny)

   * @private
   */
  updateChanges(m: any, v: any, opts: ObjectAny) {
    const stm = this.Storage;
    const changes = this.getDirtyCount();

    if (!opts.isClear) {
      this.updateItr && clearTimeout(this.updateItr);
      this.updateItr = setTimeout(() => this.trigger(EditorEvents.update));
    }

    if (this.config.noticeOnUnload) {
      window.onbeforeunload = changes ? () => true : null;
    }

    if (stm.isAutosave() && changes >= stm.getStepsBeforeSave()) {
      this.store().catch((err) => this.logError(err));
    }
  }

  /**
   * Load generic module