[gtk+] GtkButton: avoid use of gtk_get_event_widget()

[Ryan Lortie <ryanl src gnome org>]

commit c7e1f567b6124b1f99b17ca0de1985a7f39f4eae
Author: Ryan Lortie <desrt desrt ca>
Date:   Thu Oct 21 00:37:29 2010 +0200

    GtkButton: avoid use of gtk_get_event_widget()
    
    We can compare the window to the window instead of the widget to the
    widget.

 gtk/gtkbutton.c |   10 +++-------
 1 files changed, 3 insertions(+), 7 deletions(-)
---
diff --git a/gtk/gtkbutton.c b/gtk/gtkbutton.c
index 940b2cc..2b766e3 100644
--- a/gtk/gtkbutton.c
+++ b/gtk/gtkbutton.c
@@ -1725,12 +1725,10 @@ gtk_button_enter_notify (GtkWidget        *widget,
 			 GdkEventCrossing *event)
 {
   GtkButton *button;
-  GtkWidget *event_widget;
 
   button = GTK_BUTTON (widget);
-  event_widget = gtk_get_event_widget ((GdkEvent*) event);
 
-  if ((event_widget == widget) &&
+  if ((event->window == button->event_window) &&
       (event->detail != GDK_NOTIFY_INFERIOR))
     {
       button->in_button = TRUE;
@@ -1745,14 +1743,12 @@ gtk_button_leave_notify (GtkWidget        *widget,
 			 GdkEventCrossing *event)
 {
   GtkButton *button;
-  GtkWidget *event_widget;
 
   button = GTK_BUTTON (widget);
-  event_widget = gtk_get_event_widget ((GdkEvent*) event);
 
-  if ((event_widget == widget) &&
+  if ((event->window == button->event_window) &&
       (event->detail != GDK_NOTIFY_INFERIOR) &&
-      (gtk_widget_get_sensitive (event_widget)))
+      (gtk_widget_get_sensitive (widget)))
     {
       button->in_button = FALSE;
       gtk_button_leave (button);