These changes fix bug NB#78736.
[modest] / src / modest-mail-operation.h
index 3e483dd..41ef7ab 100644 (file)
 #ifndef __MODEST_MAIL_OPERATION_H__
 #define __MODEST_MAIL_OPERATION_H__
 
-#include <glib-object.h>
 #include <tny-transport-account.h>
-#include <modest-tny-attachment.h>
-/* other include files */
+#include <tny-folder-store.h>
+#include <widgets/modest-msg-edit-window.h>
+#include <modest-tny-send-queue.h>
 
 G_BEGIN_DECLS
 
@@ -48,6 +48,199 @@ G_BEGIN_DECLS
 typedef struct _ModestMailOperation      ModestMailOperation;
 typedef struct _ModestMailOperationClass ModestMailOperationClass;
 
+/**
+ * ModestMailOperationStatus:
+ *
+ * The state of a mail operation
+ */
+typedef enum _ModestMailOperationStatus {
+       MODEST_MAIL_OPERATION_STATUS_INVALID,
+       MODEST_MAIL_OPERATION_STATUS_SUCCESS,
+       MODEST_MAIL_OPERATION_STATUS_FINISHED_WITH_ERRORS,
+       MODEST_MAIL_OPERATION_STATUS_FAILED,
+       MODEST_MAIL_OPERATION_STATUS_IN_PROGRESS,
+       MODEST_MAIL_OPERATION_STATUS_CANCELED
+} ModestMailOperationStatus;
+
+/**
+ * ModestMailOperationId:
+ *
+ * The id for identifying the type of mail operation
+ */
+typedef enum {
+       MODEST_MAIL_OPERATION_TYPE_SEND,
+       MODEST_MAIL_OPERATION_TYPE_RECEIVE,
+       MODEST_MAIL_OPERATION_TYPE_SEND_AND_RECEIVE,
+       MODEST_MAIL_OPERATION_TYPE_SEND,
+       MODEST_MAIL_OPERATION_TYPE_OPEN,
+       MODEST_MAIL_OPERATION_TYPE_DELETE,
+       MODEST_MAIL_OPERATION_TYPE_INFO,
+       MODEST_MAIL_OPERATION_TYPE_RUN_QUEUE,
+       MODEST_MAIL_OPERATION_TYPE_UNKNOWN,
+} ModestMailOperationTypeOperation;
+
+/**
+ * ErrorCheckingUserCallback:
+ *
+ * @mail_op: the current mail operation.
+ * @user_data: generic data passed to user defined function.
+ *
+ * This function implements required actions to performs under error
+ * states.  
+ */
+typedef void (*ErrorCheckingUserCallback) (ModestMailOperation *mail_op, gpointer user_data);
+
+/**
+ * ErrorCheckingUserDataDestroyer:
+ *
+ * @user_data: generic data passed to user defined function.
+ *
+ * This function is used to destroy the user_data passed to the error
+ * checking user callback function
+ */
+typedef void (*ErrorCheckingUserDataDestroyer) (gpointer user_data);
+
+
+/**
+ * GetMsgAsyncUserCallback:
+ *
+ * @mail_op: the current #ModestMailOperation.
+ * @header: a #TnyHeader summary item.
+ * @msg: a #TnyMsg message retrieved by async operation.
+ * @user_data: generic data passed to user defined function.
+ *
+ * This function will be called after get_msg_cb private function, which is
+ * used as tinymail operation callback. The private function fills private 
+ * fields of mail operation and calls user defined callback if it exists.
+ */
+typedef void (*GetMsgAsyncUserCallback) (ModestMailOperation *mail_op, 
+                                        TnyHeader *header, 
+                                        gboolean canceled, 
+                                        TnyMsg *msg, 
+                                        GError *err,
+                                        gpointer user_data);
+
+/**
+ * GetMimePartSizeCallback:
+ *
+ * @mail_op: the current #ModestMailOperation.
+ * @size: size of the attachment
+ * @user_data: generic data passed to user defined function.
+ *
+ */
+typedef void (*GetMimePartSizeCallback) (ModestMailOperation *mail_op, 
+                                        gssize size,
+                                        gpointer user_data);
+
+/**
+ * XferMsgsAsyncUserCallback:
+ *
+ * @obj: a #GObject generic object which has created current mail operation.
+ * @new_folder: the new instance of the #TnyFolder that has been transferred
+ * @user_data: generic data passed to user defined function.
+ *
+ * This function will be called after transfer_msgs_cb private function, which is
+ * used as tinymail operation callback. The private function fills private 
+ * fields of mail operation and calls user defined callback if it exists.
+ */
+typedef void (*XferMsgsAsyncUserCallback) (ModestMailOperation *mail_op, 
+                                          gpointer user_data);
+
+
+/**
+ * XferFolderAsyncUserCallback:
+ *
+ * @obj: a #GObject generic object which has created current mail operation.
+ * @new_folder: the new instance of the #TnyFolder that has been transferred
+ * @user_data: generic data passed to user defined function.
+ *
+ * This function will be called after transfer_msgs_cb private function, which is
+ * used as tinymail operation callback. The private function fills private 
+ * fields of mail operation and calls user defined callback if it exists.
+ */
+typedef void (*XferFolderAsyncUserCallback) (ModestMailOperation *mail_op, 
+                                            TnyFolder *new_folder,
+                                            gpointer user_data);
+
+
+/**
+ * RefreshAsyncUserCallback:
+ *
+ * @mail_op: the current #ModestMailOperation.
+ * @folder: a #TnyFolder which has been refreshed .
+ * @user_data: generic data passed to user defined function.
+ *
+ * This function will be called after refresh_folder_async_cb private function, which is
+ * used as tinymail operation callback. The private function fills private 
+ * fields of mail operation and calls user defined callback if it exists.
+ */
+typedef void (*RefreshAsyncUserCallback) (ModestMailOperation *mail_op, 
+                                         TnyFolder *folder, 
+                                         gpointer user_data);
+
+/**
+ * UpdateAccountCallback:
+ *
+ * @self: a #ModestMailOperation
+ * @new_headers: the list of new headers received
+ * @user_data: generic data passed to user defined function.
+ *
+ * This is the callback of the update_account operation. It informs
+ * the caller about the amount of new messages that have been
+ * downloaded
+ */
+typedef void (*UpdateAccountCallback) (ModestMailOperation *self, 
+                                      TnyList *new_headers,
+                                      gpointer user_data);
+
+/**
+ * SaveToDraftsCallback:
+ *
+ * @self: a #ModestMailOperation
+ * @saved_draft: the new draft message that has been saved
+ * @user_data: generic data passed to user defined function.
+ *
+ * This is the callback of the save_to_drafts operation. It returns
+ * the newly created msg stored in the Drafts folder
+ */
+typedef void (*SaveToDraftstCallback) (ModestMailOperation *self, 
+                                      TnyMsg *saved_draft,
+                                      gpointer user_data);
+
+
+typedef gboolean (*RetrieveAllCallback) (GObject *source,
+                                        guint num_msgs,
+                                        guint limit);
+
+/**
+ * CreateFolderUserCallback:
+ *
+ * @mail_op: the current #ModestMailOperation.
+ * @folder: a #TnyFolder summary item.
+ * @user_data: generic data passed to user defined function.
+ *
+ * This function will be called after get_msg_cb private function, which is
+ * used as tinymail operation callback. The private function fills private 
+ * fields of mail operation and calls user defined callback if it exists.
+ */
+typedef void (*CreateFolderUserCallback) (ModestMailOperation *mail_op, 
+                                         TnyFolderStore *parent_folder,
+                                         TnyFolder *new_folder, 
+                                         gpointer user_data);
+
+/* This struct represents the internal state of a mail operation in a
+   given time */
+typedef struct {
+       guint      done;
+       guint      total;
+       gdouble    bytes_done;
+       gdouble    bytes_total;
+       gboolean   finished;
+       ModestMailOperationStatus        status;
+       ModestMailOperationTypeOperation op_type;
+} ModestMailOperationState;
+
+
 struct _ModestMailOperation {
         GObject parent;
        /* insert public members, if any */
@@ -55,25 +248,522 @@ struct _ModestMailOperation {
 
 struct _ModestMailOperationClass {
        GObjectClass parent_class;
-       /* insert signal callback declarations, eg. */
-       /* void (* my_event) (ModestMailOperation* obj); */
+
+       /* Signals */
+       void (*progress_changed) (ModestMailOperation *self, ModestMailOperationState *state, gpointer user_data);
+       void (*operation_started) (ModestMailOperation *self, gpointer user_data);
+       void (*operation_finished) (ModestMailOperation *self, gpointer user_data);
 };
 
 /* member functions */
 GType        modest_mail_operation_get_type    (void) G_GNUC_CONST;
 
-/* typical parameter-less _new function */
-ModestMailOperation*    modest_mail_operation_new         (void);
+/**
+ * modest_mail_operation_new:
+ * @source: a #GObject which creates this new operation.
+ * 
+ * Creates a new instance of class #ModestMailOperation, using parameters
+ * to initialize its private structure. @source parameter may be NULL.
+ **/
+ModestMailOperation*    modest_mail_operation_new     (GObject *source);
+
+/**
+ * modest_mail_operation_new_with_error_handling:
+ * @id: a #ModestMailOperationId identification of operation type.
+ * @source: a #GObject which creates this new operation.
+ * @error_handler: a #ErrorCheckingUserCallback function to performs operations when 
+ * an error occurs.
+ * 
+ * Creates a new instance of class #ModestMailOperation, using parameters
+ * to initialize its private structure. @source parameter may be NULL. 
+ * @error_handler can not be NULL, but it will be returned an mail operation
+ * object without error handling capability.
+ **/
+ModestMailOperation*    modest_mail_operation_new_with_error_handling     (GObject *source,
+                                                                          ErrorCheckingUserCallback error_handler,
+                                                                          gpointer user_data,
+                                                                          ErrorCheckingUserDataDestroyer error_handler_destroyer);
+/**
+ * modest_mail_operation_execute_error_handler
+ * @self: a #ModestMailOperation
+ * 
+ * Executes error handler if exists. The error handler is the one that
+ * MUST free the user data passed to the
+ * modest_mail_operation_new_with_error_handling constructor
+ **/
+void
+modest_mail_operation_execute_error_handler (ModestMailOperation *self);
+
+/**
+ * modest_mail_operation_get_type_operation
+ * @self: a #ModestMailOperation
+ * 
+ * Gets the private op_type field of mail operation. This op_type
+ * identifies the class/type of mail operation.
+ **/
+ModestMailOperationTypeOperation
+modest_mail_operation_get_type_operation (ModestMailOperation *self);
+
+/**
+ * modest_mail_operation_is_mine
+ * @self: a #ModestMailOperation
+ * @source: a #GObject to check if it have created @self operation.
+ * 
+ * Check if @source object its owner of @self mail operation.
+ *
+ * returns: TRUE if source its owner, FALSE otherwise.
+ **/
+gboolean 
+modest_mail_operation_is_mine (ModestMailOperation *self, 
+                              GObject *me);
+
+/**
+ * modest_mail_operation_get_source
+ * @self: a #ModestMailOperation
+ *
+ * returns a new reference to the object that created the mail
+ * operation passed to the constructor, or NULL if none. The caller
+ * must free the new reference
+ **/
+GObject *
+modest_mail_operation_get_source (ModestMailOperation *self);
 
 /* fill in other public functions, eg.: */
-ModestMailOperation*       modest_mail_operation_send_mail (TnyTransportAccount *transport_account,
-                                                           const gchar *from,
-                                                           const gchar *to,
-                                                           const gchar *cc,
-                                                           const gchar *bcc,
-                                                           const gchar *subject,
-                                                           const gchar *body,
-                                                           const GList *attachments_list);
+
+/**
+ * modest_mail_operation_send_mail:
+ * @self: a #ModestMailOperation
+ * @transport_account: a non-NULL #TnyTransportAccount
+ * @msg: a non-NULL #TnyMsg
+ * 
+ * Sends and already existing message using the provided
+ * #TnyTransportAccount. This operation is synchronous, so the
+ * #ModestMailOperation should not be added to any
+ * #ModestMailOperationQueue
+  **/
+void    modest_mail_operation_send_mail       (ModestMailOperation *self,
+                                              TnyTransportAccount *transport_account,
+                                              TnyMsg* msg);
+
+/**
+ * modest_mail_operation_send_new_mail:
+ * @self: a #ModestMailOperation
+ * @transport_account: a non-NULL #TnyTransportAccount
+ * @draft_msg: a #TnyMsg of the origin draft message, if any
+ * @from: the email address of the mail sender
+ * @to: a non-NULL email address of the mail receiver
+ * @cc: a comma-separated list of email addresses where to send a carbon copy
+ * @bcc: a comma-separated list of email addresses where to send a blind carbon copy
+ * @subject: the subject of the new mail
+ * @plain_body: the plain text body of the new mail.
+ * @html_body: the html version of the body of the new mail. If NULL, the mail will
+ *             be sent with the plain body only.
+ * @attachments_list: a #GList of attachments, each attachment must be a #TnyMimePart
+ * @images_list: a #GList of image attachments, each attachment must be a #TnyMimePart
+ * 
+ * Sends a new mail message using the provided
+ * #TnyTransportAccount. This operation is synchronous, so the
+ * #ModestMailOperation should not be added to any
+ * #ModestMailOperationQueue
+  **/
+void    modest_mail_operation_send_new_mail   (ModestMailOperation *self,
+                                              TnyTransportAccount *transport_account,
+                                              TnyMsg *draft_msg,
+                                              const gchar *from,
+                                              const gchar *to,
+                                              const gchar *cc,
+                                              const gchar *bcc,
+                                              const gchar *subject,
+                                              const gchar *plain_body,
+                                              const gchar *html_body,
+                                              const GList *attachments_list,
+                                              const GList *images_list,
+                                              TnyHeaderFlags priority_flags);
+
+
+/**
+ * modest_mail_operation_save_to_drafts:
+ * @self: a #ModestMailOperation
+ * @transport_account: a non-NULL #TnyTransportAccount
+ * @draft_msg: the previous draft message, in case it's an update
+ * to an existing draft.
+ * @from: the email address of the mail sender
+ * @to: a non-NULL email address of the mail receiver
+ * @cc: a comma-separated list of email addresses where to send a carbon copy
+ * @bcc: a comma-separated list of email addresses where to send a blind carbon copy
+ * @subject: the subject of the new mail
+ * @plain_body: the plain text body of the new mail.
+ * @html_body: the html version of the body of the new mail. If NULL, the mail will
+ *             be sent with the plain body only.
+ * @attachments_list: a #GList of attachments, each attachment must be a #TnyMimePart
+ * @images_list: a #GList of image attachments, each attachment must be a #TnyMimePart
+ * @callback: the user callback, will be called when the operation finishes
+ * @user_data: data that will be passed to the user callback
+ *
+ * Save a mail message to drafts using the provided
+ * #TnyTransportAccount. This operation is asynchronous.
+ *
+  **/
+void modest_mail_operation_save_to_drafts   (ModestMailOperation *self,
+                                            TnyTransportAccount *transport_account,
+                                            TnyMsg *draft_msg,
+                                            const gchar *from,
+                                            const gchar *to,
+                                            const gchar *cc,
+                                            const gchar *bcc,
+                                            const gchar *subject,
+                                            const gchar *plain_body,
+                                            const gchar *html_body,
+                                            const GList *attachments_list,
+                                            const GList *images_list,
+                                            TnyHeaderFlags priority_flags,
+                                            SaveToDraftstCallback callback,
+                                            gpointer user_data);
+/**
+ * modest_mail_operation_update_account:
+ * @self: a #ModestMailOperation
+ * @account_name: the id of a Modest account
+ * @poke_all: if TRUE it will also do a poke_status over all folders of the account
+ * 
+ * Asynchronously refreshes the root folders of the given store
+ * account. The caller should add the #ModestMailOperation to a
+ * #ModestMailOperationQueue and then free it. The caller will be
+ * notified by the "progress_changed" signal each time the progress of
+ * the operation changes.
+ *
+ * Example
+ * <informalexample><programlisting>
+ * queue = modest_tny_platform_factory_get_modest_mail_operation_queue_instance (fact)
+ * mail_op = modest_mail_operation_new ();
+ * g_signal_connect (G_OBJECT (mail_op), "progress_changed", G_CALLBACK(on_progress_changed), NULL);
+ * modest_mail_operation_queue_add (queue, mail_op);
+ * modest_mail_operation_update_account (mail_op, account_name)
+ * g_object_unref (G_OBJECT (mail_op));
+ * </programlisting></informalexample>
+ *
+ * Note that the account_name *MUST* be a modest account name, not a
+ * tinymail store account name
+ * 
+ **/
+void          modest_mail_operation_update_account (ModestMailOperation *self,
+                                                   const gchar *account_name,
+                                                   gboolean poke_all,
+                                                   RetrieveAllCallback retrieve_all_cb,
+                                                   UpdateAccountCallback callback,
+                                                   gpointer user_data);
+
+/* Functions that perform store operations */
+
+/**
+ * modest_mail_operation_create_folder:
+ * @self: a #ModestMailOperation
+ * @parent: the #TnyFolderStore which is the parent of the new folder
+ * @name: the non-NULL new name for the new folder
+ * 
+ * Creates a new folder as a children of a existing one. If the store
+ * account supports subscriptions this method also sets the new folder
+ * as subscribed. This operation is synchronous, so the
+ * #ModestMailOperation should not be added to any
+ * #ModestMailOperationQueue
+ * 
+ * Returns: a newly created #TnyFolder or NULL in case of error.
+ **/
+void    modest_mail_operation_create_folder  (ModestMailOperation *self,
+                                             TnyFolderStore *parent,
+                                             const gchar *name,
+                                             CreateFolderUserCallback callback,
+                                             gpointer user_data);
+
+/**
+ * modest_mail_operation_remove_folder:
+ * @self: a #ModestMailOperation
+ * @folder: a #TnyFolder
+ * @remove_to_trash: TRUE to move it to trash or FALSE to delete
+ * permanently
+ * 
+ * Removes a folder. This operation is synchronous, so the
+ * #ModestMailOperation should not be added to any
+ * #ModestMailOperationQueue
+ **/
+void          modest_mail_operation_remove_folder  (ModestMailOperation *self,
+                                                   TnyFolder *folder,
+                                                   gboolean remove_to_trash);
+
+/**
+ * modest_mail_operation_rename_folder:
+ * @self: a #ModestMailOperation
+ * @folder: a #TnyFolder
+ * @name: a non-NULL name without "/"
+ * 
+ * Renames a given folder with the provided new name. This operation
+ * is synchronous, so the #ModestMailOperation should not be added to
+ * any #ModestMailOperationQueue
+ **/
+void          modest_mail_operation_rename_folder  (ModestMailOperation *self,
+                                                   TnyFolder *folder, 
+                                                   const gchar *name,
+                                                   XferFolderAsyncUserCallback user_callback,
+                                                   gpointer user_data);
+
+/**
+ * modest_mail_operation_xfer_folder:
+ * @self: a #ModestMailOperation
+ * @folder: a #TnyFolder
+ * @parent: the new parent of the folder as #TnyFolderStore
+ * @delete_original: wheter or not delete the original folder
+ * @user_callback: a #XferFolderAsyncUserCallback function to call after tinymail callback execution.
+ * @user_data: generic user data which will be passed to @user_callback function.
+ * 
+ * Sets the given @folder as child of a provided #TnyFolderStore. This
+ * operation also transfers all the messages contained in the folder
+ * and all of his children folders with their messages as well. This
+ * operation is synchronous, so the #ModestMailOperation should not be
+ * added to any #ModestMailOperationQueue.
+ *
+ * If @delete_original is TRUE this function moves the original
+ * folder, if it is FALSE the it just copies it
+ *
+ **/
+void          modest_mail_operation_xfer_folder    (ModestMailOperation *self,
+                                                   TnyFolder *folder,
+                                                   TnyFolderStore *parent,
+                                                   gboolean delete_original,
+                                                   XferFolderAsyncUserCallback user_callback,
+                                                   gpointer user_data);
+                                                   
+
+/* Functions that performs msg operations */
+
+/**
+ * modest_mail_operation_xfer_msgs:
+ * @self: a #ModestMailOperation
+ * @header_list: a #TnyList of #TnyHeader to transfer
+ * @folder: the #TnyFolder where the messages will be transferred
+ * @delete_original: whether or not delete the source messages
+ * @user_callback: a #XferFolderAsyncUserCallback function to call after tinymail callback execution.
+ * @user_data: generic user data which will be passed to @user_callback function.
+ * 
+ * Asynchronously transfers messages from their current folder to
+ * another one. The caller should add the #ModestMailOperation to a
+ * #ModestMailOperationQueue and then free it. The caller will be
+ * notified by the "progress_changed" when the operation is completed.
+ *
+ * If the @delete_original paramter is TRUE then this function moves
+ * the messages between folders, otherwise it copies them.
+ * 
+ * Example
+ * <informalexample><programlisting>
+ * queue = modest_tny_platform_factory_get_modest_mail_operation_queue_instance (fact);
+ * mail_op = modest_mail_operation_new ();
+ * modest_mail_operation_queue_add (queue, mail_op);
+ * g_signal_connect (G_OBJECT (mail_op), "progress_changed", G_CALLBACK(on_progress_changed), queue);
+ *
+ * modest_mail_operation_xfer_msg (mail_op, headers, folder, TRUE);
+ * 
+ * g_object_unref (G_OBJECT (mail_op));
+ * </programlisting></informalexample>
+ *
+ **/
+void          modest_mail_operation_xfer_msgs      (ModestMailOperation *self,
+                                                   TnyList *header_list, 
+                                                   TnyFolder *folder,
+                                                   gboolean delete_original,
+                                                   XferMsgsAsyncUserCallback user_callback,
+                                                   gpointer user_data);
+
+/**
+ * modest_mail_operation_remove_msg:
+ * @self: a #ModestMailOperation
+ * @header: the #TnyHeader of the message to move
+ * @remove_to_trash: TRUE to move it to trash or FALSE to delete it
+ * permanently
+ * 
+ * Deletes a message. This operation is synchronous, so the
+ * #ModestMailOperation should not be added to any
+ * #ModestMailOperationQueue
+ **/
+void          modest_mail_operation_remove_msg     (ModestMailOperation *self,
+                                                   TnyHeader *header,
+                                                   gboolean remove_to_trash);
+
+/**
+ * modest_mail_operation_remove_msg:
+ * @self: a #ModestMailOperation
+ * @headers: the #TnyList of the messages to delete
+ * @remove_to_trash: TRUE to move it to trash or FALSE to delete it
+ * permanently
+ * 
+ * Deletes a list of messages. This operation is synchronous, so the
+ * #ModestMailOperation should not be added to any
+ * #ModestMailOperationQueue
+ **/
+void          modest_mail_operation_remove_msgs     (ModestMailOperation *self,
+                                                    TnyList *headers,
+                                                    gboolean remove_to_trash);
+
+/**
+ * modest_mail_operation_get_msg:
+ * @self: a #ModestMailOperation
+ * @header_list: the #TnyHeader of the message to get
+ * @user_callback: a #GetMsgAsyncUserCallback function to call after tinymail callback execution.
+ * @user_data: generic user data which will be passed to @user_callback function.
+ * 
+ * Gets a message from header using an user defined @callback function
+ * pased as argument. This operation is asynchronous, so the
+ * #ModestMailOperation should be added to #ModestMailOperationQueue
+ **/
+void          modest_mail_operation_get_msg     (ModestMailOperation *self,
+                                                TnyHeader *header, 
+                                                GetMsgAsyncUserCallback user_callback,
+                                                gpointer user_data);
+/**
+ * modest_mail_operation_get_msgs_full:
+ * @self: a #ModestMailOperation
+ * @header_list: a #TnyList of #TnyHeader objects to get and process
+ * @user_callback: a #TnyGetMsgCallback function to call after tinymail operation execution.
+ * @user_data: user data passed to both, user_callback and update_status_callback.
+ * 
+ * Gets messages from headers list and process hem using @callback function
+ * pased as argument. This operation is asynchronous, so the
+ * #ModestMailOperation should be added to #ModestMailOperationQueue
+ **/
+void          modest_mail_operation_get_msgs_full   (ModestMailOperation *self,
+                                                    TnyList *headers_list,
+                                                    GetMsgAsyncUserCallback user_callback,
+                                                    gpointer user_data,
+                                                    GDestroyNotify notify);
+
+/**
+ * modest_mail_operation_run_queue:
+ * @self: a #ModestMailOperation
+ * @queue: a #ModestTnySendQueue
+ *
+ * This mail operation is special. It should be running every time the send queue
+ * is running (after queue-start), and we should notify end of the operation
+ * after queue-end. Then, we should only set this queue on queue-start signal, and
+ * it will clean up the operation (notify end) on queue-end.
+ */
+void          modest_mail_operation_run_queue       (ModestMailOperation *self,
+                                                    ModestTnySendQueue *queue);
+
+/* Functions to control mail operations */
+/**
+ * modest_mail_operation_get_task_done:
+ * @self: a #ModestMailOperation
+ * 
+ * Gets the amount of work done for a given mail operation. This
+ * amount of work is an absolute value.
+ * 
+ * Returns: the amount of work completed
+ **/
+guint     modest_mail_operation_get_task_done      (ModestMailOperation *self);
+
+/**
+ * modest_mail_operation_get_task_total:
+ * @self: a #ModestMailOperation
+ * 
+ * Gets the total amount of work that must be done to complete a given
+ * mail operation. This amount of work is an absolute value.
+ * 
+ * Returns: the total required amount of work
+ **/
+guint     modest_mail_operation_get_task_total     (ModestMailOperation *self);
+
+
+/**
+ * modest_mail_operation_is_finished:
+ * @self: a #ModestMailOperation
+ * 
+ * Checks if the operation is finished. A #ModestMailOperation is
+ * finished if it's in any of the following states:
+ * MODEST_MAIL_OPERATION_STATUS_SUCCESS,
+ * MODEST_MAIL_OPERATION_STATUS_FAILED,
+ * MODEST_MAIL_OPERATION_STATUS_CANCELED or
+ * MODEST_MAIL_OPERATION_STATUS_FINISHED_WITH_ERRORS
+ * 
+ * Returns: TRUE if the operation is finished, FALSE otherwise
+ **/
+gboolean  modest_mail_operation_is_finished        (ModestMailOperation *self);
+
+/**
+ * modest_mail_operation_is_finished:
+ * @self: a #ModestMailOperation
+ * 
+ * Gets the current status of the given mail operation
+ *
+ * Returns: the current status or MODEST_MAIL_OPERATION_STATUS_INVALID in case of error
+ **/
+ModestMailOperationStatus modest_mail_operation_get_status  (ModestMailOperation *self);
+
+/**
+ * modest_mail_operation_get_error:
+ * @self: a #ModestMailOperation
+ * 
+ * Gets the error associated to the mail operation if exists
+ * 
+ * Returns: the #GError associated to the #ModestMailOperation if it
+ * exists or NULL otherwise
+ **/
+const GError*             modest_mail_operation_get_error   (ModestMailOperation *self);
+
+/**
+ * modest_mail_operation_cancel:
+ * @self: a #ModestMailOperation
+ *
+ * Cancels an active mail operation
+ * 
+ * Returns: TRUE if the operation was succesfully canceled, FALSE otherwise
+ **/
+gboolean  modest_mail_operation_cancel          (ModestMailOperation *self);
+
+/**
+ * modest_mail_operation_refresh_folder
+ * @self: a #ModestMailOperation
+ * @folder: the #TnyFolder to refresh
+ * @user_callback: the #RefreshAsyncUserCallback function to be called
+ * after internal refresh async callback was being executed.
+ * 
+ * Refreshes the contents of a folder. After internal callback was executed, 
+ * and all interna mail operation field were filled, if exists, it calls an 
+ * user callback function to make UI operations which must be done after folder
+ * was refreshed.
+ */
+void      modest_mail_operation_refresh_folder  (ModestMailOperation *self,
+                                                TnyFolder *folder,
+                                                RefreshAsyncUserCallback user_callback,
+                                                gpointer user_data);
+
+/**
+ * modest_mail_operation_get_account:
+ * @self: a #ModestMailOperation
+ * 
+ * Gets the account associated to a mail operation
+ * 
+ * Returns: the #TnyAccount associated to the #ModestMailOperation
+ **/
+TnyAccount *modest_mail_operation_get_account   (ModestMailOperation *self);
+
+
+/**
+ * modest_mail_operation_noop:
+ * @self: a #ModestMailOperation
+ * 
+ * Does nothing except emitting operation-started and
+ * operation-finished
+ **/
+void modest_mail_operation_noop (ModestMailOperation *self);
+
+
+/**
+ * modest_mail_operation_to_string:
+ * @self: a #ModestMailOperation
+ * 
+ * get a string representation of the mail operation (for debugging)
+ *
+ * Returns: a newly allocated string
+ **/
+gchar* modest_mail_operation_to_string (ModestMailOperation *self);
+
 
 G_END_DECLS