Refresh Vim buffer

Question

I'm editing HTML files. I use this keymap to launch firefox to preview the page:

map <F6> :update<CR>:silent !xdg-open %:p<CR>

But after this command, the Vim window becomes completely black. I need to scroll every line to make it appear again.

So I want to write a function to fresh the buffer. Here's what i did:

function! Refresh()                                                                                                                                               
    " code
    set noconfirm
    bufdo e!
    set confirm
endfunction

nmap <F5> :call Refresh()<CR>

I got the idea from this post. But it doesn't work.

Answer 1

Use CtrlL to redraw the screen. You can also use :redraw.

Check the help on these.

Answer 2

How about adding a "redraw" do your function (which does the same as ctrl-L)

:redr[aw][!]    Redraw the screen right now.  When ! is included it is
                cleared first.
                Useful to update the screen halfway executing a script
                or function.  Also when halfway a mapping and
                'lazyredraw' is set.