From 7880f0a73c1c98371904c6b875a2e2443818f0bf Mon Sep 17 00:00:00 2001
From: Christian <cb@256bit.org>
Date: Wed, 18 Nov 2020 15:30:03 +0100
Subject: [PATCH] tabline: Vim9 script implementation of update_tabline

---
 autoload/airline/extensions/tabline.vim | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/autoload/airline/extensions/tabline.vim b/autoload/airline/extensions/tabline.vim
index 8e0e67a5..b5bdab47 100644
--- a/autoload/airline/extensions/tabline.vim
+++ b/autoload/airline/extensions/tabline.vim
@@ -290,4 +290,23 @@ else
     endif
     &tabline='%!airline#extensions#tabline#get()'
   enddef
+  def s:update_tabline(forceit: number): void # {{{2
+    if get(g:, 'airline#extensions#tabline#disable_refresh', 0)
+      return
+    endif
+    if !forceit && get(g:, 'SessionLoad', 0)
+      return
+    endif
+    var match = expand('<afile>')
+    if pumvisible()
+      return
+    elseif !get(g:, 'airline#extensions#tabline#enabled', 0)
+      return
+    # return, if buffer matches ignore pattern or is directory (netrw)
+    elseif empty(match) || airline#util#ignore_buf(match) || isdirectory(match)
+      return
+    endif
+    airline#util#doautocmd('BufMRUChange')
+    airline#extensions#tabline#redraw()
+  enddef
 endif