terminal: Redraw statusline on title change #8973

The statusline may incorporate b:term_title, so redraw it when that
title changes.

Introduce a new function status_redraw_buf to redraw windows associated
with the current buffer.

2 files changed, 10 insertions, 5 deletions

diff --git a/src/nvim/screen.c b/src/nvim/screen.c
index fe6a15c5fc..ec4b31c40d 100644
--- a/src/nvim/screen.c
+++ b/src/nvim/screen.c
@@ -4588,14 +4588,18 @@ void status_redraw_all(void)
   }
 }
 
-/*
- * mark all status lines of the current buffer for redraw
- */
+/// Marks all status lines of the current buffer for redraw.
 void status_redraw_curbuf(void)
 {
+  status_redraw_buf(curbuf);
+}
+
+/// Marks all status lines of the specified buffer for redraw.
+void status_redraw_buf(buf_T *buf)
+{
   FOR_ALL_WINDOWS_IN_TAB(wp, curtab) {
-    if (wp->w_status_height != 0 && wp->w_buffer == curbuf) {
-      wp->w_redr_status = TRUE;
+    if (wp->w_status_height != 0 && wp->w_buffer == buf) {
+      wp->w_redr_status = true;
       redraw_later(VALID);
     }
   }
diff --git a/src/nvim/terminal.c b/src/nvim/terminal.c
index d83986cb15..d831979022 100644
--- a/src/nvim/terminal.c
+++ b/src/nvim/terminal.c
@@ -668,6 +668,7 @@ static void buf_set_term_title(buf_T *buf, char *title)
                false,
                &err);
   api_clear_error(&err);
+  status_redraw_buf(buf);
 }
 
 static int term_settermprop(VTermProp prop, VTermValue *val, void *data)