vim-patch:9.1.0147: Cannot keep a buffer focused in a window

Problem:  Cannot keep a buffer focused in a window
          (Amit Levy)
Solution: Add the 'winfixbuf' window-local option
          (Colin Kennedy)

fixes:  vim/vim#6445
closes: vim/vim#13903

https://github.com/vim/vim/commit/215703563757a4464907ead6fb9edaeb7f430bea

N/A patch:
vim-patch:58f1e5c0893a

1 files changed, 30 insertions, 1 deletions

diff --git a/src/nvim/window.c b/src/nvim/window.c
index ff40a9adef..9f84713ee7 100644
--- a/src/nvim/window.c
+++ b/src/nvim/window.c
@@ -133,6 +133,35 @@ static void log_frame_layout(frame_T *frame)
 }
 #endif
 
+/// Check if the current window is allowed to move to a different buffer.
+///
+/// @return If the window has 'winfixbuf', or this function will return false.
+bool check_can_set_curbuf_disabled(void)
+{
+  if (curwin->w_p_wfb) {
+    semsg("%s", e_winfixbuf_cannot_go_to_buffer);
+    return false;
+  }
+
+  return true;
+}
+
+/// Check if the current window is allowed to move to a different buffer.
+///
+/// @param forceit If true, do not error. If false and 'winfixbuf' is enabled, error.
+///
+/// @return If the window has 'winfixbuf', then forceit must be true
+///     or this function will return false.
+bool check_can_set_curbuf_forceit(int forceit)
+{
+  if (!forceit && curwin->w_p_wfb) {
+    semsg("%s", e_winfixbuf_cannot_go_to_buffer);
+    return false;
+  }
+
+  return true;
+}
+
 /// @return the current window, unless in the cmdline window and "prevwin" is
 /// set, then return "prevwin".
 win_T *prevwin_curwin(void)
@@ -597,7 +626,7 @@ wingotofile:
     ptr = xmemdupz(ptr, len);
 
     find_pattern_in_path(ptr, 0, len, true, Prenum == 0,
-                         type, Prenum1, ACTION_SPLIT, 1, MAXLNUM);
+                         type, Prenum1, ACTION_SPLIT, 1, MAXLNUM, false);
     xfree(ptr);
     curwin->w_set_curswant = true;
     break;