From a89e88fc3ec55b5d4fc65e2d59b391b515a72974 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Timm=20B=C3=A4der?= <mail@baedert.org>
Date: Thu, 4 Jan 2018 13:15:15 +0100
Subject: [PATCH] widget: Ignore non-gestures in _gtk_widget_consumes_motion

priv->event_controllers is a list of all event controllers, which aren't
all GtkGesture subclasses.
---
 gtk/gtkwidget.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index e61ef9778f..02e651a9a7 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -14488,7 +14488,8 @@ _gtk_widget_consumes_motion (GtkWidget        *widget,
     {
       data = l->data;
 
-      if (data->controller == NULL)
+      if (data->controller == NULL ||
+          !GTK_IS_GESTURE (data->controller))
         continue;
 
       if ((!GTK_IS_GESTURE_SINGLE (data->controller) ||