[gtk+] expander: Convert to GdkEvent API

[Carlos Garnacho <carlosg src gnome org>]

commit 2246387d211821f139c40ad96748086252f59a34
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Aug 25 22:52:48 2017 -0400

    expander: Convert to GdkEvent API

 gtk/gtkexpander.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkexpander.c b/gtk/gtkexpander.c
index 1262363..6aac0e3 100644
--- a/gtk/gtkexpander.c
+++ b/gtk/gtkexpander.c
@@ -604,8 +604,11 @@ gtk_expander_enter_notify (GtkWidget        *widget,
                            GdkEventCrossing *event)
 {
   GtkExpander *expander = GTK_EXPANDER (widget);
+  GdkNotifyType detail;
 
-  if (event->detail != GDK_NOTIFY_INFERIOR)
+  gdk_event_get_crossing_detail ((GdkEvent *)event, &detail);
+
+  if (detail != GDK_NOTIFY_INFERIOR)
     {
       expander->priv->prelight = TRUE;
 
@@ -625,8 +628,11 @@ gtk_expander_leave_notify (GtkWidget        *widget,
                            GdkEventCrossing *event)
 {
   GtkExpander *expander = GTK_EXPANDER (widget);
+  GdkNotifyType detail;
+
+  gdk_event_get_crossing_detail ((GdkEvent *)event, &detail);
 
-  if (event->detail != GDK_NOTIFY_INFERIOR)
+  if (detail != GDK_NOTIFY_INFERIOR)
     {
       expander->priv->prelight = FALSE;