Add variable `scroll-preserve-screen-position-commands'.

http://lists.gnu.org/archive/html/emacs-devel/2010-04/msg00403.html

* window.c (Vscroll_preserve_screen_position_commands): New variable
with the default value as the list of Qscroll_down and Qscroll_up.
(window_scroll_pixel_based, window_scroll_line_based): Search the
last command in the list Vscroll_preserve_screen_position_commands
instead of comparing with Qscroll_up and Qscroll_down.

* mwheel.el (scroll-preserve-screen-position-commands):
Add mwheel-scroll to this list of commands.

* simple.el (scroll-preserve-screen-position-commands):
Add scroll-up-command, scroll-down-command, scroll-up-line,
scroll-down-line to this list of commands.

1 files changed, 8 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index a8e8aa7ddfb..e4130a64838 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,11 @@
+2010-04-14  Juri Linkov  <juri@jurta.org>
+
+        * window.c (Vscroll_preserve_screen_position_commands): New variable
+        with the default value as the list of Qscroll_down and Qscroll_up.
+        (window_scroll_pixel_based, window_scroll_line_based): Search the
+        last command in the list Vscroll_preserve_screen_position_commands
+        instead of comparing with Qscroll_up and Qscroll_down.
+
 2010-04-13  Jan Djärv  <jan.h.d@swipnet.se>
 
         * gtkutil.c (xg_set_geometry): Set geometry for PPosition also.