From: Po Lu <luangruo@yahoo.com>
Date: Mon, 18 Apr 2022 07:55:40 +0000 (+0800)
Subject: Clarify computation of header line vpos
X-Git-Tag: emacs-29.0.90~1931^2~437
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=96b21b8da10e4e31981e8a6874411ab184259fa4;p=emacs.git

Clarify computation of header line vpos

* src/dispnew.c (update_text_area): Test vpos is more than 1
only if is both a tab and header line.  Reported by Eli
Zaretskii <eliz@gnu.org>.
---

diff --git a/src/dispnew.c b/src/dispnew.c
index 3cfe1b86f6a..2aba0edfe8f 100644
--- a/src/dispnew.c
+++ b/src/dispnew.c
@@ -3933,7 +3933,8 @@ update_text_area (struct window *w, struct glyph_row *updated_row, int vpos)
          Apr 2022) */
       || (current_row->mouse_face_p
 	  && !(current_row->mode_line_p
-	       && (vpos > w->current_matrix->tab_line_p)))
+	       && (vpos > (w->current_matrix->tab_line_p
+			   && w->current_matrix->header_line_p))))
       || current_row->x != desired_row->x)
     {
       output_cursor_to (w, vpos, 0, desired_row->y, desired_row->x);