Merge pull request #27872 from luukvbaal/cmdheight

fix(ui): don't force 'cmdheight' to zero with ext_messages

src/nvim/ui.c

@@ -227,6 +227,11 @@ void ui_refresh(void)
     if (i < kUIGlobalCount) {
       ext_widgets[i] |= ui_cb_ext[i];
     }
+    // Set 'cmdheight' to zero when ext_messages becomes active.
+    if (i == kUIMessages && !ui_ext[i] && ext_widgets[i]) {
+      set_option_value(kOptCmdheight, NUMBER_OPTVAL(0), 0);
+      command_height();
+    }
     ui_ext[i] = ext_widgets[i];
     if (i < kUIGlobalCount) {
       ui_call_option_set(cstr_as_string(ui_ext_names[i]),
@@ -241,10 +246,6 @@ void ui_refresh(void)
   screen_resize(width, height);
   p_lz = save_p_lz;
 
-  if (ext_widgets[kUIMessages]) {
-    set_option_value(kOptCmdheight, NUMBER_OPTVAL(0), 0);
-    command_height();
-  }
   ui_mode_info_set();
   pending_mode_update = true;
   ui_cursor_shape();

src/nvim/window.c

@@ -5899,10 +5899,6 @@ static void frame_setheight(frame_T *curfrp, int height)
 
   if (curfrp->fr_parent == NULL) {
     // topframe: can only change the command line height
-    // Avoid doing so with external messages.
-    if (ui_has(kUIMessages)) {
-      return;
-    }
     if (height > ROWS_AVAIL) {
       // If height is greater than the available space, try to create space for
       // the frame by reducing 'cmdheight' if possible, while making sure
@@ -6241,12 +6237,6 @@ const char *did_set_winminwidth(optset_T *args FUNC_ATTR_UNUSED)
 void win_drag_status_line(win_T *dragwin, int offset)
 {
   frame_T *fr = dragwin->w_frame;
-
-  // Avoid changing command line height with external messages.
-  if (fr->fr_next == NULL && ui_has(kUIMessages)) {
-    return;
-  }
-
   frame_T *curfr = fr;
   if (fr != topframe) {         // more than one window
     fr = fr->fr_parent;