+static void ev_sidebar_thumbnails_clear_model (EvSidebarThumbnails *sidebar);
+static gboolean ev_sidebar_thumbnails_support_document (EvSidebarPage *sidebar_page,
+ EvDocument *document);
+static void ev_sidebar_thumbnails_page_iface_init (EvSidebarPageIface *iface);
+static void ev_sidebar_thumbnails_set_document (EvSidebarPage *sidebar_page,
+ EvDocument *document);
+static const gchar* ev_sidebar_thumbnails_get_label (EvSidebarPage *sidebar_page);
+
+G_DEFINE_TYPE_EXTENDED (EvSidebarThumbnails,
+ ev_sidebar_thumbnails,
+ GTK_TYPE_VBOX,
+ 0,
+ G_IMPLEMENT_INTERFACE (EV_TYPE_SIDEBAR_PAGE,
+ ev_sidebar_thumbnails_page_iface_init))