(window_scroll_pixel_based): Signal "Beginning of buffer" when scroll-down

at the beginning of an empty buffer.

diff --git a/src/ChangeLog b/src/ChangeLog
index 708122e35fa9b6db2bd747dda5f42bd75532bede..c095f3e66c3771b1369944d663c3fe5be0652f57 100644 (file)
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2006-06-09  Eli Zaretskii  <eliz@gnu.org>
+
+       * window.c (window_scroll_pixel_based): Signal "Beginning of
+       buffer" when scroll-down at the beginning of an empty buffer.
+
 2006-06-06  YAMAMOTO Mitsuharu  <mituharu@math.s.chiba-u.ac.jp>
 
        * macterm.c [USE_MAC_TSM] (mac_handle_text_input_event): Exclude

diff --git a/src/window.c b/src/window.c
index acb4c5cfbdde68cb0718fc969b56512d23a29530..e0ea9beb211319b4892391a767d5721a6286deac 100644 (file)
--- a/src/window.c
+++ b/src/window.c
@@ -4895,6 +4895,8 @@ window_scroll_pixel_based (window, n, whole, noerror)
            }
          else if (noerror)
            return;
+         else if (n < 0)       /* could happen with empty buffers */
+           Fsignal (Qbeginning_of_buffer, Qnil);
          else
            Fsignal (Qend_of_buffer, Qnil);
        }