Function undo

packages/plugins/codeblock/src/plugin/yjs/undomanager.ts:121–122

({ state, dispatch })

export const yUndoManager = cmView.ViewPlugin.fromClass(YUndoManagerPluginValue)

export const undo: cmState.StateCommand = ({ state, dispatch }) =>
  state.facet(yUndoManagerFacet).undo() || true

export const redo: cmState.StateCommand = ({ state, dispatch }) =>
  state.facet(yUndoManagerFacet).redo() || true