From 5efcf34c6378569ee0f2658570b11f241a81fbfc Mon Sep 17 00:00:00 2001
From: Riley Bruins <ribru17@hotmail.com>
Date: Sat, 6 May 2023 10:36:16 -0700
Subject: [PATCH] cache bufnr to prevent bugs

---
 autoload/mkdp/autocmd.vim | 9 +++++----
 autoload/mkdp/rpc.vim     | 8 ++++----
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/autoload/mkdp/autocmd.vim b/autoload/mkdp/autocmd.vim
index 9f1aa77e..f86e4e30 100644
--- a/autoload/mkdp/autocmd.vim
+++ b/autoload/mkdp/autocmd.vim
@@ -1,6 +1,7 @@
 " init preview key action
 function! mkdp#autocmd#init() abort
-  execute 'augroup MKDP_REFRESH_INIT' . bufnr('%')
+  let s:bufnum = bufnr('%')
+  execute 'augroup MKDP_REFRESH_INIT' . s:bufnum
     autocmd!
     " refresh autocmd
     if g:mkdp_refresh_slow
@@ -10,13 +11,13 @@ function! mkdp#autocmd#init() abort
     endif
     " autoclose autocmd
     if g:mkdp_auto_close
-      autocmd BufHidden <buffer> call mkdp#rpc#preview_close()
+      autocmd BufHidden <buffer> call mkdp#rpc#preview_close(s:bufnum)
     endif
     " server close autocmd
     autocmd VimLeave * call mkdp#rpc#stop_server()
   augroup END
 endfunction
 
-function! mkdp#autocmd#clear_buf() abort
-  execute 'autocmd! ' . 'MKDP_REFRESH_INIT' . bufnr('%')
+function! mkdp#autocmd#clear_buf(bufnum) abort
+  execute 'autocmd! ' . 'MKDP_REFRESH_INIT' . a:bufnum
 endfunction
diff --git a/autoload/mkdp/rpc.vim b/autoload/mkdp/rpc.vim
index b257571a..20477940 100644
--- a/autoload/mkdp/rpc.vim
+++ b/autoload/mkdp/rpc.vim
@@ -109,18 +109,18 @@ function! mkdp#rpc#preview_refresh() abort
   endif
 endfunction
 
-function! mkdp#rpc#preview_close() abort
+function! mkdp#rpc#preview_close(bufnum) abort
   if s:is_vim
     if s:mkdp_channel_id !=# v:null
-      call mkdp#rpc#notify(s:mkdp_channel_id, 'close_page', { 'bufnr': bufnr('%') })
+      call mkdp#rpc#notify(s:mkdp_channel_id, 'close_page', { 'bufnr': a:bufnum })
     endif
   else
     if s:mkdp_channel_id !=# -1
-      call rpcnotify(s:mkdp_channel_id, 'close_page', { 'bufnr': bufnr('%') })
+      call rpcnotify(s:mkdp_channel_id, 'close_page', { 'bufnr': a:bufnum })
     endif
   endif
   let b:MarkdownPreviewToggleBool = 0
-  call mkdp#autocmd#clear_buf()
+  call mkdp#autocmd#clear_buf(a:bufnum)
 endfunction
 
 function! mkdp#rpc#open_browser() abort