Set cursor in quickfix on autocmd event

Question

I need to set cursor position when opening quickfix window. I have tried

autocmd BufEnter * call cursor(2, 2)

It doesn't set cursor for quickfix buffer immediately after I have opened it.

UPD: I am trying to save current cursor position of quickfix window when close it and restore when open again.

let s:saved_cursor = [0, 1, 1]
autocmd BufDelete * call s:SaveCursor()
autocmd BufWinEnter quickfix call s:RestoreCursor()

func s:SaveCursor()
    if expand("<abuf>") == s:get_qf_bufnr()
        let s:saved_cursor = getpos('.')
    endif
endfunc

func s:RestoreCursor()
    call cursor(s:saved_cursor[1], s:saved_cursor[2])
endfunc

func s:get_qf_bufnr()
    for buf_i in getbufinfo()
        if getbufvar(buf_i.bufnr, '&buftype') == 'quickfix'
            return buf_i.bufnr
        endif
    endfor
    return -1
endfunc

It doesn't work.
Scenario is below:

1) Open and fill quickfix buffer by cs find command

2) Move cursor in quickfix window

3) Close quickfix window by :cclose (and save cursor position by s:SaveCursor() function)

4) Open quickfix again by :copen (and restore cursor position by s:RestoreCursor() function)

Probably BufWinEnter autocmd event is not suitable for my purpose and I am trying to set cursor before quickfix window opened.
On BufEnter event I can set cursor position if quickfix window is already opened. But if I close quickfix window and open it again cursor will be at first line first column.

Ralf · Answer

From the source code it looks like the position in the quickfix window is determined by the current position in the quickfix list. This is set after the window was opened, hence after your autocmd ran.

First you need the autocmd event BufLeave, to save the cursor position (the quickfix buffer is not deleted). Then change your function s:RestoreCursor to contain:

call cursor(g:saved_cursor[0], g:saved_cursor[1])
echom "My Pos: " . string(getpos('.'))

This should print the cursor position you want to restore. But in the end the cursor ends up on the line corresponding to the current position in the quickfix list.

I have no idea how to prevent this.

klaus · Answer

Put this in your vimrc

augroup quickfix
    autocmd!
    autocmd QuickFixCmdPost [^l]* nested cwindow
    autocmd QuickFixCmdPost    l* nested lwindow
augroup END

From :h QuickFixCmdPost, this autocommand event is triggered after a quickfix command is run. And [^l]* makes sure that the quickfix command is not actually a location list command. From :h location-list, a location list is a window-local quickfix list, and to create a location list window, you'll just have to put an l at the beginning of the equivalent quickfix command. So, depending on whether the command has l at the beginning, the quickfix or location-list window is opened.

Set cursor in quickfix on autocmd event

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