+void
+ivi_layout_init(struct ivi_compositor *ivi, struct ivi_output *output);
+
+void
+ivi_layout_activate(struct ivi_output *output, const char *app_id);
+
+void
+ivi_layout_desktop_committed(struct ivi_surface *surf);
+
+void
+ivi_layout_panel_committed(struct ivi_surface *surface);
+