new MenuItem attribute char* successor_id

server/menuitem.c

@@ -150,6 +150,7 @@ MenuItem *menuitem_create (MenuItemType type, char *id, MenuEventFunc(*event_fun
 		free (new_item);
 		return NULL;
 	}
+	new_item->successor_id = NULL;
 	new_item->parent = NULL;
 	new_item->event_func = event_func;
 	new_item->text = strdup (text);

server/menuitem.h

@@ -110,6 +110,9 @@ typedef enum MenuEventType {
 typedef struct MenuItem {
 	MenuItemType type;	/**< Type as defined above */
 	char *id;		/**< Internal name for client supplied menus */
+	char *successor_id;	/**< next menuitem after closing this
+				 * one. (A string to allow special values
+				 * "_quit_", "_close_", "_none_"). */
 	struct MenuItem *parent; /**< Parent of this menuitem */
 	MenuEventFunc (*event_func);
 			/**< Defines event_func to be an event function */
@@ -273,6 +276,11 @@ static inline MenuItem *menuitem_get_parent (MenuItem *item)
 	return ((item != NULL) ? item->parent : NULL);
 }
 
+static inline char *menuitem_get_successor (MenuItem *item)
+{
+	return ((item != NULL) ? item->successor_id : NULL);
+}
+
 /** Resets the item to the initial state.
  * You should call menuitem_update after this to see the effects.
  * This call is useless on items that have immediate effect, like a slider.