[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, 13 insertions, 5 deletions

diff --git a/src/file-manager/fm-icon-view.c b/src/file-manager/fm-icon-view.c
index eee45185..a9fb8b11 100644
--- a/src/file-manager/fm-icon-view.c
+++ b/src/file-manager/fm-icon-view.c
@@ -209,7 +209,11 @@ G_DEFINE_TYPE_WITH_CODE (FMIconView, fm_icon_view, FM_TYPE_DIRECTORY_VIEW,
                                  fm_icon_view_iface_init));
 
 static void
+#if GTK_CHECK_VERSION (3, 0, 0)
+fm_icon_view_destroy (GtkWidget *object)
+#else
 fm_icon_view_destroy (GtkObject *object)
+#endif
 {
     FMIconView *icon_view;
 
@@ -237,10 +241,13 @@ fm_icon_view_destroy (GtkObject *object)
         icon_view->details->icons_not_positioned = NULL;
     }
 
+#if GTK_CHECK_VERSION (3, 0, 0)
+    GTK_WIDGET_CLASS (fm_icon_view_parent_class)->destroy (object);
+#else
     GTK_OBJECT_CLASS (fm_icon_view_parent_class)->destroy (object);
+#endif
 }
 
-
 static void
 fm_icon_view_finalize (GObject *object)
 {
@@ -271,6 +278,7 @@ fm_icon_view_finalize (GObject *object)
     g_signal_handlers_disconnect_by_func (caja_compact_view_preferences,
                                           all_columns_same_width_changed_callback,
                                           icon_view);
+
     G_OBJECT_CLASS (fm_icon_view_parent_class)->finalize (object);
 }
 
@@ -2829,8 +2837,6 @@ fm_icon_view_sort_directories_first_changed (FMDirectoryView *directory_view)
     }
 }
 
-/* GtkObject methods. */
-
 static gboolean
 icon_view_can_accept_item (CajaIconContainer *container,
                            CajaFile *target_item,
@@ -3145,9 +3151,11 @@ fm_icon_view_class_init (FMIconViewClass *klass)
 
     G_OBJECT_CLASS (klass)->set_property = fm_icon_view_set_property;
     G_OBJECT_CLASS (klass)->finalize = fm_icon_view_finalize;
-
+#if !GTK_CHECK_VERSION (3, 0, 0)
     GTK_OBJECT_CLASS (klass)->destroy = fm_icon_view_destroy;
-
+#else
+    GTK_WIDGET_CLASS (klass)->destroy = fm_icon_view_destroy;
+#endif
     GTK_WIDGET_CLASS (klass)->screen_changed = fm_icon_view_screen_changed;
     GTK_WIDGET_CLASS (klass)->scroll_event = fm_icon_view_scroll_event;