Transient prompt for zsh (insipred by romkatv's powerlevel10k)

transient_prompt.zsh

### Simple transient prompt

[[ -c /dev/null ]]  ||  return
zmodload zsh/system ||  return

## Set the transient prompt PROMPT here -
TRANSIENT_PROMPT='%# '   # Sample value

function set_prompt {
    ## Set the values of PROMPT and RPROMPT here
    # Sample values given below
    PROMPT='%~'$'\n''%# '
    RPROMPT='%(?..%B%F{1}%?%f%b)'
}

zle -N send-break _transient_prompt_widget-send-break
function _transient_prompt_widget-send-break {
    _transient_prompt_widget-zle-line-finish
    zle .send-break
}

zle -N zle-line-finish _transient_prompt_widget-zle-line-finish
function _transient_prompt_widget-zle-line-finish {
    (( ! _transient_prompt_fd )) && {
        sysopen -r -o cloexec -u _transient_prompt_fd /dev/null
        zle -F $_transient_prompt_fd _transient_prompt_restore_prompt
    }
    zle && PROMPT=$TRANSIENT_PROMPT RPROMPT= zle reset-prompt && zle -R
}

function _transient_prompt_restore_prompt {
    exec {1}>&-
    (( ${+1} )) && zle -F $1
    _transient_prompt_fd=0
    set_prompt
    zle reset-prompt
    zle -R
}

(( ${+precmd_functions} )) || typeset -ga precmd_functions
(( ${#precmd_functions} )) || {
    do_nothing() {true}
    precmd_functions=(do_nothing)
}

precmd_functions+=_transient_prompt_precmd
function _transient_prompt_precmd {
    TRAPINT() { zle && _transient_prompt_widget-zle-line-finish; return $(( 128 + $1 )) }
}


# vim: sw=0 ts=4 sts=4 et

transient_prompt_with_newline_before_prompt.zsh

#### Transient prompt with transient newline before prompt

[[ -c /dev/null ]]  ||  return
zmodload zsh/system ||  return

## Set the transient prompt PROMPT here -
TRANSIENT_PROMPT='%# '   # Sample value

function set_prompt {
    ## Set the values of PROMPT and RPROMPT here
    # Sample values given below
    PROMPT='%~'$'\n''%# '
    RPROMPT='%(?..%B%F{1}%?%f%b)'
}

typeset -g _transient_prompt_newline=
function _transient_prompt_set_prompt {
    set_prompt
    PROMPT='$_transient_prompt_newline'$PROMPT
}; _transient_prompt_set_prompt

zle -N clear-screen _transient_prompt_widget-clear-screen
function _transient_prompt_widget-clear-screen {
    _transient_prompt_newline=
    zle .clear-screen
}

zle -N send-break _transient_prompt_widget-send-break
function _transient_prompt_widget-send-break {
    _transient_prompt_widget-zle-line-finish
    zle .send-break
}

zle -N zle-line-finish _transient_prompt_widget-zle-line-finish
function _transient_prompt_widget-zle-line-finish {
    (( ! _transient_prompt_fd )) && {
        sysopen -r -o cloexec -u _transient_prompt_fd /dev/null
        zle -F $_transient_prompt_fd _transient_prompt_restore_prompt
    }
    zle && PROMPT=$TRANSIENT_PROMPT RPROMPT= zle reset-prompt && zle -R
}

function _transient_prompt_restore_prompt {
    exec {1}>&-
    (( ${+1} )) && zle -F $1
    _transient_prompt_fd=0
    _transient_prompt_set_prompt
    zle reset-prompt
    zle -R
}

(( ${+precmd_functions} )) || typeset -ga precmd_functions
(( ${#precmd_functions} )) || {
    do_nothing() {true}
    precmd_functions=(do_nothing)
}

precmd_functions+=_transient_prompt_precmd
function _transient_prompt_precmd {
    # We define _transient_prompt_precmd in this way because we don't want
    # _transient_prompt_newline to be defined on the very first precmd.
    TRAPINT() {zle && _transient_prompt_widget-zle-line-finish; return $(( 128 + $1 ))}
    function _transient_prompt_precmd {
        TRAPINT() {zle && _transient_prompt_widget-zle-line-finish; return $(( 128 + $1 ))}
        _transient_prompt_newline=$'\n'
    }
}

# vim: sw=0 ts=4 sts=4 et

Thanks a lot!

I've added another (simpler) version without the transient newline above the normal prompt

when I activate a virtual environment of python it does not appear in the prompt, how could it be solved?

@gmr458 Add ${VIRTUAL_ENV##*/} to PROMPT or RPROMPT or TRANSIENT_PROMPT, depending on where you want to show it.

I solved it with this:

function set_prompt {
    if [[ -n "$VIRTUAL_ENV" ]]; then
        PROMPT="(`basename \"$VIRTUAL_ENV\"`) "
    else
        PROMPT=''
    fi

    ## Set the values of PROMPT and RPROMPT here
    # Sample values given below
    PROMPT='%~'$'\n''%# '
    RPROMPT='%(?..%B%F{1}%?%f%b)'
}

how i can integrated it with spaceship theme ?

i solve it with change to this

## Set the transient prompt PROMPT here -
TRANSIENT_PROMPT='➜ '   # Sample value

function set_prompt {
    ## Set the values of PROMPT and RPROMPT here
    # Sample values given below
    PROMPT='$(spaceship_prompt)'
    RPROMPT='$(spaceship_rprompt)'
}