From fab2a9d878596d14150814f1e95549992ad94e29 Mon Sep 17 00:00:00 2001
From: Marco Hinz <mh.codebro@gmail.com>
Date: Fri, 9 Dec 2016 15:17:34 +0100
Subject: [PATCH] SignifyRefresh: use window ID instead of number

`win_getid()` and `win_gotoid()` were introduced in 7.4.1557.

Older versions will continue using the less accurate window number instead.
---
 autoload/sy/util.vim | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/autoload/sy/util.vim b/autoload/sy/util.vim
index 466dcf1..76eca1a 100644
--- a/autoload/sy/util.vim
+++ b/autoload/sy/util.vim
@@ -24,9 +24,19 @@ endfunction
 
 " Function: #refresh_windows {{{1
 function! sy#util#refresh_windows() abort
-  let winnr = winnr()
+  if exists('*win_getid')
+    let winid = win_getid()
+  else
+    let winnr = winnr()
+  endif
+
   windo if exists('b:sy') | call sy#start() | endif
-  execute winnr .'wincmd w'
+
+  if exists('winid')
+    call win_gotoid(winid)
+  else
+    execute winnr .'wincmd w'
+  endif
 endfunction
 
 " Function: #hunk_text_object {{{1