master 2064746: Drop scrollbar motion events when valuators are found

[Po Lu]

branch: master
commit 20647467bef593c9dd3b86efdc6f21ddfd1e7f75
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    Drop scrollbar motion events when valuators are found
    
    * src/xterm.c (handle_one_xevent): Drop XI_Motion if it's on
    top of a scroll bar and a valuator is found.
---
 src/xterm.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/xterm.c b/src/xterm.c
index 070ee7d..c5f8264 100644
--- a/src/xterm.c
+++ b/src/xterm.c
@@ -10230,7 +10230,13 @@ handle_one_xevent (struct x_display_info *dpyinfo,
                }
 #endif
              if (found_valuator)
-               goto XI_OTHER;
+               {
+#ifdef USE_GTK
+                 if (f && xg_event_is_for_scrollbar (f, event))
+                   *finish = X_EVENT_DROP;
+#endif
+                 goto XI_OTHER;
+               }
 
              ev.x = lrint (xev->event_x);
              ev.y = lrint (xev->event_y);