[src] don't use GtkObject (GTK3)

the ::destroy signal of GtkObject has only been moved to GtkWidget in GTK3
(after GtkObject removal): http://developer.gnome.org/gtk3/3.0/ch25s02.html
So we use conditionals in this case, to keep it working with GTK2.

A tad similar:
http://git.gnome.org/browse/nautilus/commit/?id=cc6cb51e827c0b15d4ef09f12d37b9f331ddcef8

1 files changed, 16 insertions, 13 deletions

diff --git a/src/caja-location-entry.c b/src/caja-location-entry.c
index f23f1a9f..0a59a347 100644
--- a/src/caja-location-entry.c
+++ b/src/caja-location-entry.c
@@ -285,7 +285,11 @@ finalize (GObject *object)
 }
 
 static void
+#if GTK_CHECK_VERSION (3, 0, 0)
+destroy (GtkWidget *object)
+#else
 destroy (GtkObject *object)
+#endif
 {
     CajaLocationEntry *entry;
 
@@ -301,7 +305,11 @@ destroy (GtkObject *object)
     g_free (entry->details->current_directory);
     entry->details->current_directory = NULL;
 
+#if GTK_CHECK_VERSION (3, 0, 0)
+    EEL_CALL_PARENT (GTK_WIDGET_CLASS, destroy, (object));
+#else
     EEL_CALL_PARENT (GTK_OBJECT_CLASS, destroy, (object));
+#endif
 }
 
 static void
@@ -382,22 +390,17 @@ caja_location_entry_activate (GtkEntry *entry)
 static void
 caja_location_entry_class_init (CajaLocationEntryClass *class)
 {
-    GtkWidgetClass *widget_class;
-    GObjectClass *gobject_class;
-    GtkObjectClass *object_class;
-    GtkEntryClass *entry_class;
+    GTK_WIDGET_CLASS (class)->focus_in_event = caja_location_entry_focus_in;
 
-    widget_class = GTK_WIDGET_CLASS (class);
-    widget_class->focus_in_event = caja_location_entry_focus_in;
+#if GTK_CHECK_VERSION (3, 0, 0)
+    GTK_WIDGET_CLASS (class)->destroy = destroy;
+#else
+    GTK_OBJECT_CLASS (class)->destroy = destroy;
+#endif
 
-    gobject_class = G_OBJECT_CLASS (class);
-    gobject_class->finalize = finalize;
+    G_OBJECT_CLASS (class)->finalize = finalize;
 
-    object_class = GTK_OBJECT_CLASS (class);
-    object_class->destroy = destroy;
-
-    entry_class = GTK_ENTRY_CLASS (class);
-    entry_class->activate = caja_location_entry_activate;
+    GTK_ENTRY_CLASS (class)->activate = caja_location_entry_activate;
 }
 
 void