From: Sergio Lopez <[email protected]>

When the user raises their fingers from the touchpad, we may receive a
GDK_SMOOTH_SCROLL event with delta_y == 0. Avoid generating a WHEEL_UP
event in this situation.

Signed-off-by: Sergio Lopez <[email protected]>
Message-id: [email protected]
Signed-off-by: Gerd Hoffmann <[email protected]>
---
 ui/gtk.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/ui/gtk.c b/ui/gtk.c
index 87c0e33d2a..5a584353bd 100644
--- a/ui/gtk.c
+++ b/ui/gtk.c
@@ -1004,7 +1004,9 @@ static gboolean gd_scroll_event(GtkWidget *widget, 
GdkEventScroll *scroll,
                                          &delta_x, &delta_y)) {
             return TRUE;
         }
-        if (delta_y > 0) {
+        if (delta_y == 0) {
+            return TRUE;
+        } else if (delta_y > 0) {
             btn = INPUT_BUTTON_WHEEL_DOWN;
         } else {
             btn = INPUT_BUTTON_WHEEL_UP;
-- 
2.9.3


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