MODEST_FOLDER_RULES_FOLDER_NON_RENAMEABLE = 1 << 4,
} ModestTnyFolderRules;
+/** Note: This is not a derived TnyFolder type. These are just convenience
+ * functions for working with a TnyFolder. tinymail does not seem to offer any
+ * easy way to cause derived TnyFolders to be instantiated.
+ */
+
+/* TODO: These "const TnyFolder*" arguments will eventually need to
+ * be "TnyFolder*". C cannot support constness for complex objects like C++
+ * can, because it lacks the mutable keyword and doesn't allow both const
+ * and non-const get function overloads.
+ */
+
/**
* modest_tny_folder_guess_type:
* @folder: a valid tnymail folder
*
* Returns: TRUE if it's a local folder, FALSE otherwise
*/
-gboolean modest_tny_folder_is_local_folder (const TnyFolder *folder);
+gboolean modest_tny_folder_is_local_folder (TnyFolder *folder);
/**
*
* Returns: TRUE if it's a local folder, FALSE otherwise
*/
-TnyFolderType modest_tny_folder_get_local_folder_type (const TnyFolder *folder);
+TnyFolderType modest_tny_folder_get_local_folder_type (TnyFolder *folder);
/**
* Returns: the ModestTnyFolderRules rules (bitwise-OR) for this
* folder
*/
-ModestTnyFolderRules modest_tny_folder_get_rules (const TnyFolder *folder);
+ModestTnyFolderRules modest_tny_folder_get_rules (TnyFolder *folder);
+
+/**
+ * modest_tny_folder_is_outbox_for_account:
+ * @folder: a valid tnymail folder
+ *
+ * Discover whether this folder is the per-account outbox for the specified
+ * account.
+ *
+ * Returns: TRUE if this folder is the per-account outbox for the account.
+ */
+gboolean modest_tny_folder_is_outbox_for_account (TnyFolder *folder,
+ TnyAccount *account);
G_END_DECLS