How to refresh terminal after function call

Question

I've written a simple function to search the current folder when I press ctrl+f with exa and peco, after I choose a directory I want to cd into it.

(ll is modified version of ls)

pecofunc() {
  ll | peco --layout=bottom-up | read foo 
  foo="${foo##* }"
  if [ -n "$foo" ] 
  then
    builtin cd "$foo"
  fi
  # refresh terminal and end execution
}
zle -N pecofunc pecofunc
bindkey '^f' pecofunc

This part works well but after executing it my directory doesn't visually change until I press enter or use other command.

Picture 1 Terminal before doing anything

Picture 2 After pressing ctrl+f

Picture 3 Choosing test2 and pressing enter

Picture 4 Pressing enter again

Pressing enter again refreshes the folder which I'm in but creates another newline which is unacceptable.

How can I avoid this issue?

Answer 1

The key-handler function needs to call zle -I after returning from any interactive tools, to invalidate the current display and force ZSH to redraw the command line.

It seems that printing an empty line before running the tool can be useful, to avoid overwriting the current prompt in general.

pecofunc() {
    echo ""
    ll | peco | read foo
    zle -I
    if ... then cd ... fi
}