neovim

commit 63cbc95d45173e9dd59c096307ca826de855491d
parent cb77bd1b861aa4cb0c99c01efeb26e790263e219
Author: glepnir <glephunter@gmail.com>
Date:   Sat, 10 Jan 2026 13:49:46 +0800

fix(api): nvim_set_current_win doesn't reset Visual mode (#37340)

Problem:
Using nvim_set_current_win() to switch windows while in Visual mode
causes E315 ml_get error when target buffer has fewer lines. This
doesn't happen with `:wincmd w` since it properly resets Visual mode
when switching buffers.

Solution:
Reset Visual mode when switching to another buffer, like `:wincmd w`.
Diffstat:
M
src/nvim/api/vim.c
 | 
4
++++
M
test/functional/api/vim_spec.lua
 | 
10
++++++++++

2 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/src/nvim/api/vim.c b/src/nvim/api/vim.c
@@ -65,6 +65,7 @@
 #include "nvim/msgpack_rpc/channel.h"
 #include "nvim/msgpack_rpc/channel_defs.h"
 #include "nvim/msgpack_rpc/unpacker.h"
+#include "nvim/normal.h"
 #include "nvim/option.h"
 #include "nvim/option_defs.h"
 #include "nvim/option_vars.h"
@@ -975,6 +976,9 @@ void nvim_set_current_win(Window window, Error *err)
   }
 
   TRY_WRAP(err, {
+    if (win->w_buffer != curbuf) {
+      reset_VIsual_and_resel();
+    }
     goto_tabpage_win(win_find_tabpage(win), win);
   });
 }
diff --git a/test/functional/api/vim_spec.lua b/test/functional/api/vim_spec.lua
@@ -2003,6 +2003,16 @@ describe('API', function()
       eq(api.nvim_list_wins()[2], api.nvim_get_current_win())
     end)
 
+    it('resets Visual mode when switching to different buffer #37072', function()
+      command('new | wincmd w')
+      api.nvim_buf_set_lines(0, 0, -1, true, { 'a', 'b' })
+      api.nvim_win_set_cursor(0, { 2, 0 })
+      feed('<C-q>')
+      eq({ mode = '\022', blocking = false }, api.nvim_get_mode())
+      api.nvim_set_current_win(fn.win_getid(fn.winnr('#')))
+      eq(true, pcall(command, 'redraw'))
+    end)
+
     it('failure modes', function()
       n.command('split')