I'm writing a vim script. When fun() is called, I want a new window of 3 lines height is opened, with the content of register h displayed. And then, when the user moved the cursor, like hjkl, the window is closed automatically.

The code just like below. But I found the CursorMoved event is tiggered unexpected. Therefore, The window which was supposed to display and wait for user input is just flashed and closed.

Why the autocmd in fun() is executed as soon as it is installed?

Is there anything I missed or wrong?

let t:tmpname = tempname()

function! s:CloseWin()
    let l:c_nr = bufnr("")
    let l:p_nr = bufwinnr(t:tmpname)
    exec l:p_nr . " wincmd w"
    exec bufwinnr(l:c_nr) . " wincmd w"
    autocmd! vgroup

function! s:fun()
    let @h = 'xxxx'
    silent! topleft 3 new
    silent! exec "edit " . t:tempname
    silent! 1,$delete _
    silent! put h
    silent! call cursor(1, 0, 0)
    silent! delete _

    silent! setlocal noswapfile
    silent! setlocal buftype=nofile
    silent! setlocal bufhidden=hide
    silent! setlocal nowrap
    silent! setlocal foldcolumn=0
    silent! setlocal foldmethod=manual
    silent! setlocal nofoldenable
    silent! setlocal nobuflisted
    silent! setlocal nospell
    silent! wincmd p

    augroup vgroup
        autocmd CursorMoved * call s:CloseWin()
    augroup end
  • Had anyone ever found a solution for this? I'm hitting the exact same issue. (tmp window that I want to close on cursor moved) – Olical Mar 6 at 12:57

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