From 9b032073cbcf5aadbeb4b74f0cf662a9fa5f5530 Mon Sep 17 00:00:00 2001
From: Carlos Garnacho <carlosg@gnome.org>
Date: Mon, 26 Jun 2017 19:26:26 +0200
Subject: [PATCH] gtkrange: Instaurate GTK+ grabs while manipulating ranges

It should not be necessary for most situations, except while there's
GDK grabs coercing events in a different way.

https://bugzilla.gnome.org/show_bug.cgi?id=782870
---
 gtk/gtkrange.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gtk/gtkrange.c b/gtk/gtkrange.c
index a7497a42d2..98ec13bc3a 100644
--- a/gtk/gtkrange.c
+++ b/gtk/gtkrange.c
@@ -2426,6 +2426,8 @@ range_grab_add (GtkRange      *range,
   update_steppers_state (range);
 
   gtk_style_context_add_class (context, "dragging");
+
+  gtk_grab_add (GTK_WIDGET (range));
 }
 
 static void
@@ -2453,6 +2455,7 @@ range_grab_remove (GtkRange *range)
   if (!priv->grab_location)
     return;
 
+  gtk_grab_remove (GTK_WIDGET (range));
   context = gtk_widget_get_style_context (GTK_WIDGET (range));
 
   gtk_css_gadget_queue_allocate (priv->grab_location);