[gtk+/wip/garnacho/dnd-grab: 7/13] gtk: Add private gtk_widget_reset_controllers()

[Carlos Garnacho <carlosg src gnome org>]

commit c2e043b7d69eaaa6ad94bbfa2e146030bb110b2f
Author: Carlos Garnacho <carlosg gnome org>
Date:   Wed Jan 13 20:53:54 2016 +0100

    gtk: Add private gtk_widget_reset_controllers()
    
    This is a one-shot call that can be called on the places we
    know we're taking input away.

 gtk/gtkwidget.c        |   27 ++++++++++++++++-----------
 gtk/gtkwidgetprivate.h |    2 ++
 2 files changed, 18 insertions(+), 11 deletions(-)
---
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index 75935bc..14f6133 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -13006,17 +13006,7 @@ gtk_widget_propagate_state (GtkWidget    *widget,
         }
 
       if (!gtk_widget_is_sensitive (widget))
-        {
-          EventControllerData *controller_data;
-          GList *l;
-
-          /* Reset all controllers */
-          for (l = priv->event_controllers; l; l = l->next)
-            {
-              controller_data = l->data;
-              gtk_event_controller_reset (controller_data->controller);
-            }
-        }
+        gtk_widget_reset_controllers (widget);
 
       if (GTK_IS_CONTAINER (widget))
         {
@@ -17596,3 +17586,18 @@ _gtk_widget_consumes_motion (GtkWidget        *widget,
 
   return FALSE;
 }
+
+void
+gtk_widget_reset_controllers (GtkWidget *widget)
+{
+  EventControllerData *controller_data;
+  GtkWidgetPrivate *priv = widget->priv;
+  GList *l;
+
+  /* Reset all controllers */
+  for (l = priv->event_controllers; l; l = l->next)
+    {
+      controller_data = l->data;
+      gtk_event_controller_reset (controller_data->controller);
+    }
+}
diff --git a/gtk/gtkwidgetprivate.h b/gtk/gtkwidgetprivate.h
index 18bc980..c54eccc 100644
--- a/gtk/gtkwidgetprivate.h
+++ b/gtk/gtkwidgetprivate.h
@@ -294,6 +294,8 @@ void              gtk_widget_set_csd_input_shape           (GtkWidget
 
 gboolean          gtk_widget_has_size_request              (GtkWidget *widget);
 
+void              gtk_widget_reset_controllers             (GtkWidget *widget);
+
 /* inline getters */
 
 static inline gboolean