fern-preview.vim

Add a file preview window to fern.vim.

Features

• File preview in popup window or floating window
• Toggle auto preview mode
• Scroll preview window

Demo

Requirements

• fern.vim

Installation

vim-plug

Plug 'lambdalisue/fern.vim'
Plug 'yuki-yano/fern-preview.vim'

dein

call dein#add('lambdalisue/fern.vim')
call dein#add('yuki-yano/fern-preview.vim')

Usage

Mapping

function! s:fern_settings() abort
  nmap <silent> <buffer> p     <Plug>(fern-action-preview:toggle)
  nmap <silent> <buffer> <C-p> <Plug>(fern-action-preview:auto:toggle)
  nmap <silent> <buffer> <C-d> <Plug>(fern-action-preview:scroll:down:half)
  nmap <silent> <buffer> <C-u> <Plug>(fern-action-preview:scroll:up:half)
endfunction

augroup fern-settings
  autocmd!
  autocmd FileType fern call s:fern_settings()
augroup END

Use smart_preview function example

function! s:fern_settings() abort
  nmap <silent> <buffer> <expr> <Plug>(fern-quit-or-close-preview) fern_preview#smart_preview("\<Plug>(fern-action-preview:close)", ":q\<CR>")
  nmap <silent> <buffer> q <Plug>(fern-quit-or-close-preview)
endfunction