(mouse-drag-region): Don't run up-event handler

if hscroll has changed.

2 files changed, 8 insertions, 3 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 22da99f2f7b..f9bcf40d9e5 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,5 +1,8 @@
 2000-03-09  Gerd Moellmann  <gerd@gnu.org>
 
+        * mouse.el (mouse-drag-region): Don't run up-event handler
+        if hscroll has changed.
+
         * octave-mod.el (octave-font-lock-keywords): To font-lock the
         builtin operators, use `font-lock-builtin-face' for Emacs and
         `font-lock-preprocessor-face' otherwise.
diff --git a/lisp/mouse.el b/lisp/mouse.el
index 01884f11cfd..28f3ca2ba10 100644
--- a/lisp/mouse.el
+++ b/lisp/mouse.el
@@ -554,6 +554,7 @@ remains active.  Otherwise, it remains until the next input event."
          (start-point (posn-point start-posn))
          (start-window (posn-window start-posn))
          (start-frame (window-frame start-window))
+         (start-hscroll (window-hscroll start-window))
          (bounds (window-edges start-window))
          (top (nth 1 bounds))
          (bottom (if (window-minibuffer-p start-window)
@@ -676,9 +677,10 @@ remains active.  Otherwise, it remains until the next input event."
                          (mouse-set-region-1))))
               (delete-overlay mouse-drag-overlay)
               ;; Run the binding of the terminating up-event.
-              (if (fboundp fun)
-                  (setq unread-command-events
-                        (cons event unread-command-events)))))
+              (when (and (fboundp fun)
+                         (= start-hscroll (window-hscroll start-window)))
+                (setq unread-command-events
+                      (cons event unread-command-events)))))
         (delete-overlay mouse-drag-overlay)))))
 
 ;; Commands to handle xterm-style multiple clicks.