Function useUndoInformation

src/ui-react/hooks.ts:2254–2268

(
  checkpointsOrCheckpointsId?: CheckpointsOrCheckpointsId,
)

};

export const useUndoInformation: typeof useUndoInformationDecl = (
  checkpointsOrCheckpointsId?: CheckpointsOrCheckpointsId,
): UndoOrRedoInformation => {
  const checkpoints = useCheckpointsOrCheckpointsById(
    checkpointsOrCheckpointsId,
  );
  const [backwardIds, currentId] = useCheckpointIds(checkpoints);
  return [
    !arrayIsEmpty(backwardIds),
    useGoBackwardCallback(checkpoints),
    currentId,
    ifNotUndefined(currentId, (id) => checkpoints?.getCheckpoint(id)) ??
      EMPTY_STRING,
  ];
};

export const useRedoInformation: typeof useRedoInformationDecl = (
  checkpointsOrCheckpointsId?: CheckpointsOrCheckpointsId,