From a1843428319d1f96acaaf42e81e701de9988d06f Mon Sep 17 00:00:00 2001
From: mitchell <70453897+orbitalquark@users.noreply.github.com>
Date: Wed, 14 Apr 2021 22:46:20 -0400
Subject: Attempt to restore view scroll state after
 `textadept.editing.filter_through()`. Also prefer `view.first_visible_line =`
 rather than `view:scroll_lines()` since the latter is only needed when
 display lines are involved.

---
 modules/textadept/editing.lua | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'modules/textadept/editing.lua')

diff --git a/modules/textadept/editing.lua b/modules/textadept/editing.lua
index ae98720e..540c5aec 100644
--- a/modules/textadept/editing.lua
+++ b/modules/textadept/editing.lua
@@ -596,7 +596,7 @@ end
 function M.filter_through(command)
   assert(not (WIN32 and CURSES), 'not implemented in this environment')
   assert_type(command, 'string', 1)
-  local s, e = buffer.selection_start, buffer.selection_end
+  local s, e, top_line = buffer.selection_start, buffer.selection_end, view.first_visible_line
   if s == e then
     -- Use the whole buffer as input.
     buffer:target_whole_document()
@@ -629,6 +629,7 @@ function M.filter_through(command)
     end
   end
   buffer:replace_target(output:iconv('UTF-8', _CHARSET))
+  view.first_visible_line = top_line
   if s == e then
     buffer:goto_pos(s)
     return
-- 
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