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Neovim: Open help in a floating window
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| scriptencoding utf-8 | |
| " This function originates from https://www.reddit.com/r/neovim/comments/eq1xpt/how_open_help_in_floating_windows/; it isn't mine | |
| function! CreateCenteredFloatingWindow() abort | |
| let width = min([&columns - 4, max([80, &columns - 20])]) | |
| let height = min([&lines - 4, max([20, &lines - 10])]) | |
| let top = ((&lines - height) / 2) - 1 | |
| let left = (&columns - width) / 2 | |
| let opts = {'relative': 'editor', 'row': top, 'col': left, 'width': width, 'height': height, 'style': 'minimal'} | |
| let top = "╭" . repeat("─", width - 2) . "╮" | |
| let mid = "│" . repeat(" ", width - 2) . "│" | |
| let bot = "╰" . repeat("─", width - 2) . "╯" | |
| let lines = [top] + repeat([mid], height - 2) + [bot] | |
| let s:buf = nvim_create_buf(v:false, v:true) | |
| call nvim_buf_set_lines(s:buf, 0, -1, v:true, lines) | |
| call nvim_open_win(s:buf, v:true, opts) | |
| set winhl=Normal:Floating | |
| let opts.row += 1 | |
| let opts.height -= 2 | |
| let opts.col += 2 | |
| let opts.width -= 4 | |
| let l:textbuf = nvim_create_buf(v:false, v:true) | |
| call nvim_open_win(l:textbuf, v:true, opts) | |
| au BufWipeout <buffer> exe 'bw '.s:buf | |
| return l:textbuf | |
| endfunction | |
| function! FloatingWindowHelp(query) abort | |
| let l:buf = CreateCenteredFloatingWindow() | |
| call nvim_set_current_buf(l:buf) | |
| setlocal filetype=help | |
| setlocal buftype=help | |
| execute 'help ' . a:query | |
| endfunction | |
| command! -complete=help -nargs=? Help call FloatingWindowHelp(<q-args>) |
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There are now a couple of plugins for this sort of thing. One of them is mine (shameless plug) and also does floating terminals, the other one offers more configuration of the window position/size etc.
However, these are both NeoVim only (Lua) so won't help for pure vim.