zle .push-line-or-edit
case $WIDGET in
  *-upward )
    if [[ -o autocd ]]; then
      BUFFER='..'
    else
      BUFFER='cd ..'
    fi
    ;;
  *-backward )
    if [[ -o pushdminus ]]; then
      BUFFER='pushd -1'
    else
      BUFFER='pushd +1'
    fi
    ;;
  *-forward )
    if [[ -o pushdminus ]]; then
      BUFFER='pushd +0'
    else
      BUFFER='pushd -0'
    fi
    ;;
  * )
    print -u2 'change-directory: widget name should end in -(up|back|for)ward'
    return 1
    ;;
esac
zle .accept-line