Function CheckpointInfo

test/unit/core/ui-react/hooks.test.tsx:715–732

({
  mode,
  checkpoints,
}: {
  readonly mode: string;
  readonly checkpoints: Checkpoints;
})

};

const CheckpointInfo = ({
  mode,
  checkpoints,
}: {
  readonly mode: string;
  readonly checkpoints: Checkpoints;
}) => {
  const undoInformation = useUndoInformation(checkpoints);
  const redoInformation = useRedoInformation(checkpoints);
  const [available, action, checkpointId, label] =
    mode == 'undoInformation' ? undoInformation : redoInformation;
  return (
    <>
      {JSON.stringify([available, checkpointId ?? null, label])}
      <button onClick={action} />
    </>
  );
};

const State = ({
  mode,