(rmail-summary-get-new-mail): Don't call rmail-summary-goto-msg if msg is 0.

[gnu-emacs] / lisp / scroll-bar.el

diff --git a/lisp/scroll-bar.el b/lisp/scroll-bar.el
index 4193241e6fff8068e386766dca4ba4406563b2a5..ca7d14532ee52e12b48a9939bd87cafb43c13c8e 100644 (file)
--- a/lisp/scroll-bar.el
+++ b/lisp/scroll-bar.el
@@ -136,8 +136,9 @@ If you click outside the slider, the window scrolls to bring the slider there."
         (echo-keystrokes 0))
     (or point-before-scroll
        (setq point-before-scroll (point)))
-    (scroll-bar-drag-1 event)
+    ;; Our scrolling can move point; don't let that clear point-before-scroll.
     (let (point-before-scroll)
+      (scroll-bar-drag-1 event)
       (track-mouse
        (while (not done)
          (setq event (read-event))
@@ -147,7 +148,8 @@ If you click outside the slider, the window scrolls to bring the slider there."
                 (scroll-bar-drag-1 event))
                (t
                 ;; Exit when we get the drag event; ignore that event.
-                (setq done t))))))))
+                (setq done t)))))
+      (sit-for 0))))
 
 (defun scroll-bar-scroll-down (event)
   "Scroll the window's top line down to the location of the scroll bar click.