(mwheel-scroll): Deactivate any temporarily active region if point

moves.

1 files changed, 11 insertions, 1 deletions

diff --git a/lisp/mwheel.el b/lisp/mwheel.el
index 908dc3a6fff..8236d08dbc9 100644
--- a/lisp/mwheel.el
+++ b/lisp/mwheel.el
@@ -190,6 +190,10 @@ This should only be bound to mouse buttons 4 and 5."
                      (prog1
                          (selected-window)
                        (select-window (mwheel-event-window event)))))
+         (buffer (window-buffer curwin))
+         (opoint (with-current-buffer buffer
+                   (when (eq (car-safe transient-mark-mode) 'only)
+                     (point))))
          (mods
           (delq 'click (delq 'double (delq 'triple (event-modifiers event)))))
          (amt (assoc mods mouse-wheel-scroll-amount)))
@@ -224,7 +228,13 @@ This should only be bound to mouse buttons 4 and 5."
                    ;; Make sure we do indeed scroll to the end of the buffer.
                    (end-of-buffer (while t (scroll-up)))))
                 (t (error "Bad binding in mwheel-scroll"))))
-      (if curwin (select-window curwin))))
+      (if curwin (select-window curwin)))
+    ;; If there is a temporarily active region, deactivate it iff
+    ;; scrolling moves point.
+    (when opoint
+      (with-current-buffer buffer
+        (when (/= opoint (point))
+          (deactivate-mark)))))
   (when (and mouse-wheel-click-event mouse-wheel-inhibit-click-time)
     (if mwheel-inhibit-click-event-timer
         (cancel-timer mwheel-inhibit-click-event-timer)