* Review dimming rules to detect when modest is sedning mails.
[modest] / src / modest-mail-operation.c
index db115d4..6d8e4e1 100644 (file)
 #include "modest-mail-operation.h"
 
 #define KB 1024
-#define GET_SIZE_BUFFER_SIZE 128
+
+/* 
+ * Remove all these #ifdef stuff when the tinymail's idle calls become
+ * locked
+ */
+#define TINYMAIL_IDLES_NOT_LOCKED_YET 1
 
 /* 'private'/'protected' functions */
 static void modest_mail_operation_class_init (ModestMailOperationClass *klass);
@@ -68,7 +73,7 @@ static void modest_mail_operation_finalize   (GObject *obj);
 static void     get_msg_cb (TnyFolder *folder, 
                            gboolean cancelled, 
                            TnyMsg *msg, 
-                           GError **err, 
+                           GError *rr, 
                            gpointer user_data);
 
 static void     get_msg_status_cb (GObject *obj,
@@ -77,8 +82,6 @@ static void     get_msg_status_cb (GObject *obj,
 
 static void     modest_mail_operation_notify_end (ModestMailOperation *self);
 
-static gboolean did_a_cancel = FALSE;
-
 enum _ModestMailOperationSignals 
 {
        PROGRESS_CHANGED_SIGNAL,
@@ -127,6 +130,7 @@ typedef struct _XFerMsgAsyncHelper
        TnyList *headers;
        TnyFolder *dest_folder;
        XferMsgsAsynUserCallback user_callback; 
+       gboolean delete;
        gpointer user_data;
 } XFerMsgAsyncHelper;
 
@@ -301,6 +305,7 @@ modest_mail_operation_new_with_error_handling (ModestMailOperationTypeOperation
        
        g_return_val_if_fail (error_handler != NULL, obj);
        priv->error_checking = error_handler;
+       priv->error_checking_user_data = user_data;
 
        return obj;
 }
@@ -396,29 +401,27 @@ gboolean
 modest_mail_operation_cancel (ModestMailOperation *self)
 {
        ModestMailOperationPrivate *priv;
+       gboolean canceled = FALSE;
 
-       if (!MODEST_IS_MAIL_OPERATION (self)) {
-               g_warning ("%s: invalid parametter", G_GNUC_FUNCTION);
-               return FALSE;
-       }
+       g_return_val_if_fail (MODEST_IS_MAIL_OPERATION (self), FALSE);
 
        priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
-       if (!priv) {
-               g_warning ("BUG: %s: priv == NULL", __FUNCTION__);
-               return FALSE;
-       }
 
-       did_a_cancel = TRUE;
+       /* Note that if we call cancel with an already canceled mail
+          operation the progress changed signal won't be emitted */
+       if (priv->status == MODEST_MAIL_OPERATION_STATUS_CANCELED)
+               return FALSE;
 
        /* Set new status */
        priv->status = MODEST_MAIL_OPERATION_STATUS_CANCELED;
-
-       /* This emits progress-changed on which the mail operation queue is
-        * listening, so the mail operation is correctly removed from the
-        * queue without further explicit calls. */
-       modest_mail_operation_notify_end (self);
        
-       return TRUE;
+       /* Cancel the mail operation. We need to wrap it between this
+          start/stop operations to allow following calls to the
+          account */
+       g_return_val_if_fail (priv->account, FALSE);
+       tny_account_cancel (priv->account);
+
+       return canceled;
 }
 
 guint 
@@ -554,15 +557,25 @@ modest_mail_operation_send_mail (ModestMailOperation *self,
                g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
                             MODEST_MAIL_OPERATION_ERROR_ITEM_NOT_FOUND,
                             "modest: could not find send queue for account\n");
+               priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
+
        } else {
                /* TODO: connect to the msg-sent in order to know when
                   the mail operation is finished */
-               tny_send_queue_add (send_queue, msg, &(priv->error));
+
+/*             tny_send_queue_add (send_queue, msg, &(priv->error)); */
+               modest_tny_send_queue_add (MODEST_TNY_SEND_QUEUE(send_queue), 
+                                          msg, 
+                                          &(priv->error));
+
                /* TODO: we're setting always success, do the check in
                   the handler */
                priv->status = MODEST_MAIL_OPERATION_STATUS_SUCCESS;
        }
 
+       if (priv->status == MODEST_MAIL_OPERATION_STATUS_SUCCESS)
+               modest_platform_information_banner (NULL, NULL, _("mcen_ib_outbox_waiting_to_be_sent"));
+
        /* TODO: do this in the handler of the "msg-sent"
           signal.Notify about operation end */
        modest_mail_operation_notify_end (self);
@@ -573,9 +586,13 @@ idle_create_msg_cb (gpointer idle_data)
 {
        CreateMsgIdleInfo *info = (CreateMsgIdleInfo *) idle_data;
 
-       gdk_threads_enter ();
+       /* This is a GDK lock because we are an idle callback and
+        * info->callback can contain Gtk+ code */
+
+       gdk_threads_enter (); /* CHECKED */
        info->callback (info->mail_op, info->msg, info->userdata);
-       gdk_threads_leave ();
+       gdk_threads_leave (); /* CHECKED */
+
        g_object_unref (info->mail_op);
        if (info->msg)
                g_object_unref (info->msg);
@@ -604,13 +621,18 @@ create_msg_thread (gpointer thread_data)
 
        if (new_msg) {
                TnyHeader *header;
+               TnyHeaderFlags flags = 0;
+
                /* Set priority flags in message */
                header = tny_msg_get_header (new_msg);
                if (info->priority_flags != 0)
-                       tny_header_set_flags (header, info->priority_flags);
-               if (info->attachments_list != NULL) {
-                       tny_header_set_flags (header, TNY_HEADER_FLAG_ATTACHMENTS);
-               }
+                       flags |= info->priority_flags;
+
+               /* Set attachment flags in message */
+               if (info->attachments_list != NULL)
+                       flags |= TNY_HEADER_FLAG_ATTACHMENTS;
+
+               tny_header_set_flags (header, flags);
                g_object_unref (G_OBJECT(header));
        } else {
                priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
@@ -670,6 +692,7 @@ modest_mail_operation_create_msg (ModestMailOperation *self,
        info->from = g_strdup (from);
        info->to = g_strdup (to);
        info->cc = g_strdup (cc);
+       info->bcc  = g_strdup (bcc);
        info->subject = g_strdup (subject);
        info->plain_body = g_strdup (plain_body);
        info->html_body = g_strdup (html_body);
@@ -695,8 +718,10 @@ modest_mail_operation_send_new_mail_cb (ModestMailOperation *self,
                                        gpointer userdata)
 {
        SendNewMailInfo *info = (SendNewMailInfo *) userdata;
-       TnyFolder *folder;
+       TnyFolder *draft_folder = NULL;
+       TnyFolder *outbox_folder = NULL;
        TnyHeader *header;
+       GError *err = NULL;
 
        if (!msg) {
                goto end;
@@ -705,22 +730,42 @@ modest_mail_operation_send_new_mail_cb (ModestMailOperation *self,
        /* Call mail operation */
        modest_mail_operation_send_mail (self, info->transport_account, msg);
 
-       folder = modest_tny_account_get_special_folder (TNY_ACCOUNT (info->transport_account), TNY_FOLDER_TYPE_DRAFTS);
-       if (folder) {
-               if (info->draft_msg != NULL) {
-                       header = tny_msg_get_header (info->draft_msg);
-                       /* Note: This can fail (with a warning) if the message is not really already in a folder,
-                        * because this function requires it to have a UID. */
-                       tny_folder_remove_msg (folder, header, NULL);
-                       tny_header_set_flags (header, TNY_HEADER_FLAG_DELETED);
-                       tny_header_set_flags (header, TNY_HEADER_FLAG_SEEN);
-                       g_object_unref (header);
-               }
+       /* Remove old mail from its source folder */
+       draft_folder = modest_tny_account_get_special_folder (TNY_ACCOUNT (info->transport_account), TNY_FOLDER_TYPE_DRAFTS);
+       outbox_folder = modest_tny_account_get_special_folder (TNY_ACCOUNT (info->transport_account), TNY_FOLDER_TYPE_OUTBOX);
+       if (info->draft_msg != NULL) {
+               TnyFolder *folder = NULL;
+               TnyFolder *src_folder = NULL;
+               TnyFolderType folder_type;              
+               folder = tny_msg_get_folder (info->draft_msg);          
+               if (folder == NULL) goto end;
+               folder_type = modest_tny_folder_guess_folder_type (folder);
+               if (folder_type == TNY_FOLDER_TYPE_OUTBOX) 
+                       src_folder = outbox_folder;
+               else 
+                       src_folder = draft_folder;
+
+               /* Note: This can fail (with a warning) if the message is not really already in a folder,
+                * because this function requires it to have a UID. */          
+               header = tny_msg_get_header (info->draft_msg);
+               tny_folder_remove_msg (src_folder, header, NULL);
+
+               tny_folder_sync (folder, TRUE, &err); /* FALSE --> don't expunge */
+/*             tny_folder_sync_async (src_folder, TRUE, NULL, NULL, NULL);  /\* expunge *\/ */
+               
+               g_object_unref (header);
+               g_object_unref (folder);
        }
 
 end:
+       if (err != NULL)
+               g_error_free(err);      
        if (info->draft_msg)
                g_object_unref (info->draft_msg);
+       if (draft_folder)
+               g_object_unref (draft_folder);
+       if (outbox_folder)
+               g_object_unref (outbox_folder);
        if (info->transport_account)
                g_object_unref (info->transport_account);
        g_slice_free (SendNewMailInfo, info);
@@ -780,6 +825,7 @@ modest_mail_operation_save_to_drafts_cb (ModestMailOperation *self,
                                         TnyMsg *msg,
                                         gpointer userdata)
 {
+       TnyFolder *src_folder = NULL;
        TnyFolder *folder = NULL;
        TnyHeader *header = NULL;
        ModestMailOperationPrivate *priv = NULL;
@@ -803,20 +849,25 @@ modest_mail_operation_save_to_drafts_cb (ModestMailOperation *self,
                goto end;
        }
 
-       if (info->draft_msg != NULL) {
+       if (!priv->error)
+               tny_folder_add_msg (folder, msg, &(priv->error));
+
+       if ((!priv->error) && (info->draft_msg != NULL)) {
                header = tny_msg_get_header (info->draft_msg);
+               src_folder = tny_header_get_folder (header); 
+
                /* Remove the old draft expunging it */
-               tny_folder_remove_msg (folder, header, NULL);
-               tny_header_set_flags (header, TNY_HEADER_FLAG_DELETED);
-               tny_header_set_flags (header, TNY_HEADER_FLAG_SEEN);
-               tny_folder_sync (folder, FALSE, &(priv->error));  /* FALSE --> don't expunge */
+               tny_folder_remove_msg (src_folder, header, NULL);
+/*             tny_header_set_flags (header, TNY_HEADER_FLAG_DELETED); */
+/*             tny_header_set_flags (header, TNY_HEADER_FLAG_SEEN); */
+
+               tny_folder_sync (folder, TRUE, &(priv->error)); /* FALSE --> don't expunge */
+               tny_folder_sync_async (src_folder, TRUE, NULL, NULL, NULL);  /* expunge */
+
                g_object_unref (header);
        }
        
        if (!priv->error)
-               tny_folder_add_msg (folder, msg, &(priv->error));
-
-       if (!priv->error)
                priv->status = MODEST_MAIL_OPERATION_STATUS_SUCCESS;
        else
                priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
@@ -828,6 +879,8 @@ modest_mail_operation_save_to_drafts_cb (ModestMailOperation *self,
 end:
        if (folder)
                g_object_unref (G_OBJECT(folder));
+       if (src_folder)
+               g_object_unref (G_OBJECT(src_folder));
        if (info->edit_window)
                g_object_unref (G_OBJECT(info->edit_window));
        if (info->draft_msg)
@@ -996,10 +1049,11 @@ recurse_folders (TnyFolderStore *store, TnyFolderStoreQuery *query, TnyList *all
        while (!tny_iterator_is_done (iter)) {
 
                TnyFolderStore *folder = (TnyFolderStore*) tny_iterator_get_current (iter);
-
-               tny_list_prepend (all_folders, G_OBJECT (folder));
-               recurse_folders (folder, query, all_folders);    
-               g_object_unref (G_OBJECT (folder));
+               if (folder) {
+                       tny_list_prepend (all_folders, G_OBJECT (folder));
+                       recurse_folders (folder, query, all_folders);    
+                       g_object_unref (G_OBJECT (folder));
+               }
 
                tny_iterator_next (iter);
        }
@@ -1018,7 +1072,14 @@ idle_notify_progress (gpointer data)
        ModestMailOperationState *state;
 
        state = modest_mail_operation_clone_state (mail_op);
+
+       /* This is a GDK lock because we are an idle callback and
+        * the handlers of this signal can contain Gtk+ code */
+
+       gdk_threads_enter (); /* CHECKED */
        g_signal_emit (G_OBJECT (mail_op), signals[PROGRESS_CHANGED_SIGNAL], 0, state, NULL);
+       gdk_threads_leave (); /* CHECKED */
+
        g_slice_free (ModestMailOperationState, state);
        
        return TRUE;
@@ -1036,7 +1097,12 @@ idle_notify_progress_once (gpointer data)
 
        pair = (ModestPair *) data;
 
+       /* This is a GDK lock because we are an idle callback and
+        * the handlers of this signal can contain Gtk+ code */
+
+       gdk_threads_enter (); /* CHECKED */
        g_signal_emit (G_OBJECT (pair->first), signals[PROGRESS_CHANGED_SIGNAL], 0, pair->second, NULL);
+       gdk_threads_leave (); /* CHECKED */
 
        /* Free the state and the reference to the mail operation */
        g_slice_free (ModestMailOperationState, (ModestMailOperationState*)pair->second);
@@ -1085,18 +1151,23 @@ compare_headers_by_date (gconstpointer a,
 static gboolean 
 set_last_updated_idle (gpointer data)
 {
-       gdk_threads_enter ();
+
+       /* This is a GDK lock because we are an idle callback and
+        * modest_account_mgr_set_int can contain Gtk+ code */
+
+       gdk_threads_enter (); /* CHECKED - please recheck */
 
        /* It does not matter if the time is not exactly the same than
           the time when this idle was called, it's just an
           approximation and it won't be very different */
+
        modest_account_mgr_set_int (modest_runtime_get_account_mgr (), 
                                    (gchar *) data, 
                                    MODEST_ACCOUNT_LAST_UPDATED, 
                                    time(NULL), 
                                    TRUE);
 
-       gdk_threads_leave ();
+       gdk_threads_leave (); /* CHECKED - please recheck */
 
        return FALSE;
 }
@@ -1108,11 +1179,14 @@ idle_update_account_cb (gpointer data)
 
        idle_info = (UpdateAccountInfo *) data;
 
-       gdk_threads_enter ();
+       /* This is a GDK lock because we are an idle callback and
+        * idle_info->callback can contain Gtk+ code */
+
+       gdk_threads_enter (); /* CHECKED */
        idle_info->callback (idle_info->mail_op,
                             idle_info->new_headers,
                             idle_info->user_data);
-       gdk_threads_leave ();
+       gdk_threads_leave (); /* CHECKED */
 
        /* Frees */
        g_object_unref (idle_info->mail_op);
@@ -1126,13 +1200,14 @@ static gpointer
 update_account_thread (gpointer thr_user_data)
 {
        static gboolean first_time = TRUE;
-       UpdateAccountInfo *info;
+       UpdateAccountInfo *info = NULL;
        TnyList *all_folders = NULL;
        GPtrArray *new_headers = NULL;
        TnyIterator *iter = NULL;
        TnyFolderStoreQuery *query = NULL;
        ModestMailOperationPrivate *priv = NULL;
        ModestTnySendQueue *send_queue = NULL;
+       gint num_new_headers = 0;
 
        info = (UpdateAccountInfo *) thr_user_data;
        priv = MODEST_MAIL_OPERATION_GET_PRIVATE(info->mail_op);
@@ -1141,11 +1216,17 @@ update_account_thread (gpointer thr_user_data)
        priv->account = g_object_ref (info->account);
 
        /*
-        * for POP3, we do a logout-login upon send/receive -- many POP-servers (like Gmail) do not
-        * show any updates unless we do that
+        * Previousl, we did this for POP3, to do a logout-login upon send/receive, 
+        * because many POP-servers (like Gmail) do not
+        * show any updates unless we do that.
+        * But that didn't work with gmail anyway, 
+        * and tinymail now takes care of this itself by disconnecting 
+        * automatically after using the connection.
         */
-       if (!first_time && TNY_IS_CAMEL_POP_STORE_ACCOUNT(priv->account)) 
+       /*
+       if (!first_time && TNY_IS_CAMEL_POP_STORE_ACCOUNT (priv->account)) 
                tny_camel_pop_store_account_reconnect (TNY_CAMEL_POP_STORE_ACCOUNT(priv->account));
+       */
 
        /* Get all the folders. We can do it synchronously because
           we're already running in a different thread than the UI */
@@ -1164,8 +1245,10 @@ update_account_thread (gpointer thr_user_data)
        iter = tny_list_create_iterator (all_folders);
        while (!tny_iterator_is_done (iter)) {
                TnyFolderStore *folder = TNY_FOLDER_STORE (tny_iterator_get_current (iter));
-
-               recurse_folders (folder, query, all_folders);
+               if (folder) {
+                       recurse_folders (folder, query, all_folders);
+                       g_object_unref (folder);
+               }
                tny_iterator_next (iter);
        }
        g_object_unref (G_OBJECT (iter));
@@ -1179,10 +1262,12 @@ update_account_thread (gpointer thr_user_data)
        gint timeout = g_timeout_add (100, idle_notify_progress, info->mail_op);
 
        /* Refresh folders */
+       num_new_headers = 0;
        new_headers = g_ptr_array_new ();
        iter = tny_list_create_iterator (all_folders);
 
-       while (!tny_iterator_is_done (iter) && !priv->error && !did_a_cancel) {
+       while (!tny_iterator_is_done (iter) && !priv->error && 
+              priv->status != MODEST_MAIL_OPERATION_STATUS_CANCELED) {
 
                InternalFolderObserver *observer;
                TnyFolderStore *folder = TNY_FOLDER_STORE (tny_iterator_get_current (iter));
@@ -1225,26 +1310,26 @@ update_account_thread (gpointer thr_user_data)
                        if (G_UNLIKELY (!first_time))
                                tny_folder_poke_status (TNY_FOLDER (folder));
                }
+
                tny_folder_remove_observer (TNY_FOLDER (folder), TNY_FOLDER_OBSERVER (observer));
                g_object_unref (observer);
                observer = NULL;                        
 
-               g_object_unref (G_OBJECT (folder));
+               if (folder)
+                       g_object_unref (G_OBJECT (folder));
+
                if (priv->error)
-               {
                        priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
-                       goto out;
-               }
-               
+
                tny_iterator_next (iter);
        }
 
-       did_a_cancel = FALSE;
-
        g_object_unref (G_OBJECT (iter));
        g_source_remove (timeout);
 
-       if (new_headers->len > 0) {
+       if (priv->status != MODEST_MAIL_OPERATION_STATUS_CANCELED && 
+           priv->status != MODEST_MAIL_OPERATION_STATUS_FAILED &&
+           new_headers->len > 0) {
                gint msg_num = 0;
 
                /* Order by date */
@@ -1292,13 +1377,17 @@ update_account_thread (gpointer thr_user_data)
 
                        msg_num++;
                }
-               g_ptr_array_foreach (new_headers, (GFunc) g_object_unref, NULL);
-               g_ptr_array_free (new_headers, FALSE);
        }
+
+       /* Get the number of new headers and free them */
+       num_new_headers = new_headers->len;
+       g_ptr_array_foreach (new_headers, (GFunc) g_object_unref, NULL);
+       g_ptr_array_free (new_headers, FALSE);
        
+       if (priv->status == MODEST_MAIL_OPERATION_STATUS_CANCELED)
+               goto out;
+
        /* Perform send (if operation was not cancelled) */
-       if (did_a_cancel) goto out;             
-/*     priv->op_type = MODEST_MAIL_OPERATION_TYPE_SEND; */
        priv->done = 0;
        priv->total = 0;
        if (priv->account != NULL) 
@@ -1307,9 +1396,7 @@ update_account_thread (gpointer thr_user_data)
        
        send_queue = modest_runtime_get_send_queue (info->transport_account);
        if (send_queue) {
-/*             timeout = g_timeout_add (250, idle_notify_progress, info->mail_op); */
                modest_tny_send_queue_try_to_send (send_queue);
-/*             g_source_remove (timeout); */
        } else {
                g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
                             MODEST_MAIL_OPERATION_ERROR_INSTANCE_CREATION_FAILED,
@@ -1337,8 +1424,9 @@ update_account_thread (gpointer thr_user_data)
                /* This thread is not in the main lock */
                idle_info = g_malloc0 (sizeof (UpdateAccountInfo));
                idle_info->mail_op = g_object_ref (info->mail_op);
-               idle_info->new_headers = (new_headers) ? new_headers->len : 0;
+               idle_info->new_headers = num_new_headers;
                idle_info->callback = info->callback;
+               idle_info->user_data = info->user_data;
                g_idle_add (idle_update_account_cb, idle_info);
        }
 
@@ -1475,28 +1563,19 @@ modest_mail_operation_create_folder (ModestMailOperation *self,
        ModestMailOperationPrivate *priv;
        TnyFolder *new_folder = NULL;
 
-       TnyList *list = tny_simple_list_new ();
-       TnyFolderStoreQuery *query = tny_folder_store_query_new ();
-
        g_return_val_if_fail (TNY_IS_FOLDER_STORE (parent), NULL);
        g_return_val_if_fail (name, NULL);
        
        priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
 
        /* Check for already existing folder */
-       tny_folder_store_query_add_item (query, name, TNY_FOLDER_STORE_QUERY_OPTION_MATCH_ON_NAME);
-       tny_folder_store_get_folders (parent, list, query, NULL);
-       g_object_unref (G_OBJECT (query));
-
-       if (tny_list_get_length (list) > 0) {
+       if (modest_tny_folder_has_subfolder_with_name (parent, name)) {
                priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
                g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
                             MODEST_MAIL_OPERATION_ERROR_FOLDER_EXISTS,
                             _CS("ckdg_ib_folder_already_exists"));
        }
 
-       g_object_unref (G_OBJECT (list));
-
        /* Check parent */
        if (TNY_IS_FOLDER (parent)) {
                /* Check folder rules */
@@ -1566,15 +1645,21 @@ modest_mail_operation_remove_folder (ModestMailOperation *self,
                trash_folder = modest_tny_account_get_special_folder (account,
                                                                      TNY_FOLDER_TYPE_TRASH);
                /* TODO: error_handling */
-                modest_mail_operation_xfer_folder (self, folder,
+               if (trash_folder) {
+                       modest_mail_operation_xfer_folder (self, folder,
                                                    TNY_FOLDER_STORE (trash_folder), 
                                                    TRUE, NULL, NULL);
+                       g_object_unref (trash_folder);
+               }
        } else {
                TnyFolderStore *parent = tny_folder_get_folder_store (folder);
 
                tny_folder_store_remove_folder (parent, folder, &(priv->error));
                CHECK_EXCEPTION (priv, MODEST_MAIL_OPERATION_STATUS_FAILED);
 
+               if (!priv->error)
+                       priv->status = MODEST_MAIL_OPERATION_STATUS_SUCCESS;
+
                if (parent)
                        g_object_unref (G_OBJECT (parent));
        }
@@ -1608,17 +1693,26 @@ transfer_folder_status_cb (GObject *obj,
        priv->total = status->of_total;
 
        state = modest_mail_operation_clone_state (self);
-       g_signal_emit (G_OBJECT (self), signals[PROGRESS_CHANGED_SIGNAL], 0, state, NULL);
+
+       /* This is not a GDK lock because we are a Tinymail callback
+        * which is already GDK locked by Tinymail */
+
+       /* no gdk_threads_enter (), CHECKED */
+
+       g_signal_emit (G_OBJECT (self), signals[PROGRESS_CHANGED_SIGNAL], 0, state, NULL); 
+
+       /* no gdk_threads_leave (), CHECKED */
+
        g_slice_free (ModestMailOperationState, state);
 }
 
 
 static void
 transfer_folder_cb (TnyFolder *folder, 
-                   TnyFolderStore *into, 
                    gboolean cancelled, 
+                   TnyFolderStore *into, 
                    TnyFolder *new_folder, 
-                   GError **err, 
+                   GError *err, 
                    gpointer user_data)
 {
        XFerMsgAsyncHelper *helper;
@@ -1631,8 +1725,8 @@ transfer_folder_cb (TnyFolder *folder,
        self = helper->mail_op;
        priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
 
-       if (*err) {
-               priv->error = g_error_copy (*err);
+       if (err) {
+               priv->error = g_error_copy (err);
                priv->done = 0;
                priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
        } else if (cancelled) {
@@ -1651,9 +1745,13 @@ transfer_folder_cb (TnyFolder *folder,
 
        /* If user defined callback function was defined, call it */
        if (helper->user_callback) {
-               gdk_threads_enter ();
+
+               /* This is not a GDK lock because we are a Tinymail callback
+                * which is already GDK locked by Tinymail */
+
+               /* no gdk_threads_enter (), CHECKED */
                helper->user_callback (priv->source, helper->user_data);
-               gdk_threads_leave ();
+               /* no gdk_threads_leave () , CHECKED */
        }
 
        /* Free */
@@ -1691,17 +1789,42 @@ new_name_valid_if_local_account (ModestMailOperationPrivate *priv,
 {
        if (TNY_IS_ACCOUNT (into) && 
            modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (into)) &&
-           modest_tny_local_folders_account_extra_folder_exists (MODEST_TNY_LOCAL_FOLDERS_ACCOUNT (into),
-                                                                 new_name)) {
+           modest_tny_local_folders_account_folder_name_in_use (MODEST_TNY_LOCAL_FOLDERS_ACCOUNT (into),
+                                                                new_name)) {
                priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
                g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
-                            MODEST_MAIL_OPERATION_ERROR_FOLDER_RULES,
-                            _("FIXME: folder name already in use"));
+                            MODEST_MAIL_OPERATION_ERROR_FOLDER_EXISTS,
+                            _("ckdg_ib_folder_already_exists"));
                return FALSE;
        } else
                return TRUE;
 }
 
+/**
+ * This function checks if @ancestor is an acestor of @folder and
+ * returns TRUE in that case
+ */
+static gboolean
+folder_is_ancestor (TnyFolder *folder,
+                   TnyFolderStore *ancestor)
+{
+       TnyFolder *tmp = NULL;
+       gboolean found = FALSE;
+
+       tmp = folder;
+       while (!found && tmp && !TNY_IS_ACCOUNT (tmp)) {
+               TnyFolderStore *folder_store;
+
+               folder_store = tny_folder_get_folder_store (tmp);
+               if (ancestor == folder_store)
+                       found = TRUE;
+               else
+                       tmp = g_object_ref (folder_store);
+               g_object_unref (folder_store);
+       }
+       return found;
+}
+
 void
 modest_mail_operation_xfer_folder (ModestMailOperation *self,
                                   TnyFolder *folder,
@@ -1713,11 +1836,20 @@ modest_mail_operation_xfer_folder (ModestMailOperation *self,
        ModestMailOperationPrivate *priv = NULL;
        ModestTnyFolderRules parent_rules = 0, rules; 
        XFerMsgAsyncHelper *helper = NULL;
+       const gchar *folder_name = NULL;
+       const gchar *error_msg;
 
        g_return_if_fail (MODEST_IS_MAIL_OPERATION (self));
        g_return_if_fail (TNY_IS_FOLDER (folder));
+       g_return_if_fail (TNY_IS_FOLDER_STORE (parent));
 
        priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
+       folder_name = tny_folder_get_name (folder);
+
+       /* Set the error msg */
+       error_msg = (delete_original) ? 
+               _("mail_in_ui_folder_move_target_error") : 
+               _("mail_in_ui_folder_copy_target_error");
 
        /* Get account and set it into mail_operation */
        priv->account = modest_tny_folder_get_account (TNY_FOLDER(folder));
@@ -1729,53 +1861,88 @@ modest_mail_operation_xfer_folder (ModestMailOperation *self,
                parent_rules = modest_tny_folder_get_rules (TNY_FOLDER (parent));
        
        /* The moveable restriction is applied also to copy operation */
-       if ((!TNY_IS_FOLDER_STORE (parent)) || (rules & MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE)) {
-               printf("DEBUG: %s: Not allowing the move.\n", __FUNCTION__);
+       if ((gpointer) parent == (gpointer) folder ||
+           (!TNY_IS_FOLDER_STORE (parent)) || 
+           (rules & MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE)) {
+
                /* Set status failed and set an error */
                priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
                g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
                             MODEST_MAIL_OPERATION_ERROR_FOLDER_RULES,
-                            _("mail_in_ui_folder_move_target_error"));
+                            error_msg);
 
                /* Notify the queue */
                modest_mail_operation_notify_end (self);
+
        } else if (TNY_IS_FOLDER (parent) && 
                   (parent_rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE)) {
+
                /* Set status failed and set an error */
                priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
                g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
                             MODEST_MAIL_OPERATION_ERROR_FOLDER_RULES,
-                            _("FIXME: parent folder does not accept new folders"));
+                            error_msg);
 
                /* Notify the queue */
                modest_mail_operation_notify_end (self);
-       } else {
 
+       } else if (TNY_IS_FOLDER (parent) &&
+                  TNY_IS_FOLDER_STORE (folder) &&
+                  folder_is_ancestor (TNY_FOLDER (parent), TNY_FOLDER_STORE (folder))) {
+               /* Set status failed and set an error */
+               priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
+               g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
+                            MODEST_MAIL_OPERATION_ERROR_FOLDER_RULES,
+                            error_msg);
+
+               /* Notify the queue */
+               modest_mail_operation_notify_end (self);
 
+       } else if (TNY_IS_FOLDER_STORE (parent) &&
+                  modest_tny_folder_has_subfolder_with_name (parent, folder_name)) {
+               /* Check that the new folder name is not used by any
+                   parent subfolder */
+
+               /* Set status failed and set an error */
+               priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
+               g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
+                            MODEST_MAIL_OPERATION_ERROR_FOLDER_RULES,
+                            error_msg);
+
+               /* Notify the queue */
+               modest_mail_operation_notify_end (self);
+               
+       } else if (!(new_name_valid_if_local_account (priv, parent, folder_name))) {
                /* Check that the new folder name is not used by any
                   special local folder */
-               if (new_name_valid_if_local_account (priv, parent, 
-                                                    tny_folder_get_name (folder))) {
-                       /* Create the helper */
-                       helper = g_slice_new0 (XFerMsgAsyncHelper);
-                       helper->mail_op = g_object_ref(self);
-                       helper->dest_folder = NULL;
-                       helper->headers = NULL;
-                       helper->user_callback = user_callback;
-                       helper->user_data = user_data;
-                       
-                       /* Move/Copy folder */          
-                       tny_folder_copy_async (folder,
-                                              parent,
-                                              tny_folder_get_name (folder),
-                                              delete_original,
-                                              transfer_folder_cb,
-                                              transfer_folder_status_cb,
-                                              helper);
-               } else {
-                       modest_mail_operation_notify_end (self);
-               }
-       }
+
+               /* Set status failed and set an error */
+               priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
+               g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
+                            MODEST_MAIL_OPERATION_ERROR_FOLDER_RULES,
+                            error_msg);
+
+               /* Notify the queue */
+               modest_mail_operation_notify_end (self);
+       } else {
+               /* Create the helper */
+               helper = g_slice_new0 (XFerMsgAsyncHelper);
+               helper->mail_op = g_object_ref(self);
+               helper->dest_folder = NULL;
+               helper->headers = NULL;
+               helper->user_callback = user_callback;
+               helper->user_data = user_data;
+               
+               /* Move/Copy folder */          
+               tny_folder_copy_async (folder,
+                                      parent,
+                                      tny_folder_get_name (folder),
+                                      delete_original,
+                                      transfer_folder_cb,
+                                      transfer_folder_status_cb,
+                                      helper);         
+       } 
+       
 }
 
 void
@@ -1867,6 +2034,12 @@ void modest_mail_operation_get_msg (ModestMailOperation *self,
        if (folder) {
                /* Get account and set it into mail_operation */
                priv->account = modest_tny_folder_get_account (TNY_FOLDER(folder));
+               
+               /* Check for cached messages */
+               if (tny_header_get_flags (header) & TNY_HEADER_FLAG_CACHED)
+                       priv->op_type = MODEST_MAIL_OPERATION_TYPE_OPEN;
+               else 
+                       priv->op_type = MODEST_MAIL_OPERATION_TYPE_RECEIVE;
 
                helper = g_slice_new0 (GetMsgAsyncHelper);
                helper->mail_op = self;
@@ -1894,104 +2067,11 @@ void modest_mail_operation_get_msg (ModestMailOperation *self,
        }
 }
 
-static gboolean
-idle_get_mime_part_size_cb (gpointer userdata)
-{
-       GetMimePartSizeInfo *idle_info;
-
-       idle_info = (GetMimePartSizeInfo *) userdata;
-
-       gdk_threads_enter ();
-       idle_info->callback (idle_info->mail_op,
-                            idle_info->size,
-                            idle_info->userdata);
-       gdk_threads_leave ();
-
-       g_object_unref (idle_info->mail_op);
-       g_slice_free (GetMimePartSizeInfo, idle_info);
-
-       return FALSE;
-}
-
-static gpointer
-get_mime_part_size_thread (gpointer thr_user_data)
-{
-       GetMimePartSizeInfo *info;
-       gchar read_buffer[GET_SIZE_BUFFER_SIZE];
-       TnyStream *stream;
-       gssize readed_size;
-       gssize total = 0;
-       ModestMailOperationPrivate *priv;
-
-       info = (GetMimePartSizeInfo *) thr_user_data;
-       priv = MODEST_MAIL_OPERATION_GET_PRIVATE (info->mail_op);
-
-       stream = tny_camel_mem_stream_new ();
-       tny_mime_part_decode_to_stream (info->mime_part, stream);
-       tny_stream_reset (stream);
-       if (tny_stream_is_eos (stream)) {
-               tny_stream_close (stream);
-               stream = tny_mime_part_get_stream (info->mime_part);
-       }
-       
-       while (!tny_stream_is_eos (stream)) {
-               readed_size = tny_stream_read (stream, read_buffer, GET_SIZE_BUFFER_SIZE);
-               total += readed_size;
-       }
-
-       if (info->callback) {
-               GetMimePartSizeInfo *idle_info;
-
-               idle_info = g_slice_new0 (GetMimePartSizeInfo);
-               idle_info->mail_op = g_object_ref (info->mail_op);
-               idle_info->size = total;
-               idle_info->callback = info->callback;
-               idle_info->userdata = info->userdata;
-               g_idle_add (idle_get_mime_part_size_cb, idle_info);
-       }
-
-       g_idle_add (idle_notify_queue, g_object_ref (info->mail_op));
-
-       g_object_unref (info->mail_op);
-       g_object_unref (stream);
-       g_object_unref (info->mime_part);
-       g_slice_free  (GetMimePartSizeInfo, info);
-
-       return NULL;
-}
-
-void          
-modest_mail_operation_get_mime_part_size (ModestMailOperation *self,
-                                         TnyMimePart *part,
-                                         GetMimePartSizeCallback user_callback,
-                                         gpointer user_data,
-                                         GDestroyNotify notify)
-{
-       GetMimePartSizeInfo *info;
-       ModestMailOperationPrivate *priv;
-       GThread *thread;
-       
-       g_return_if_fail (MODEST_IS_MAIL_OPERATION (self));
-       g_return_if_fail (TNY_IS_MIME_PART (part));
-       
-       priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
-
-       priv->status = MODEST_MAIL_OPERATION_STATUS_IN_PROGRESS;
-       info = g_slice_new0 (GetMimePartSizeInfo);
-       info->mail_op = g_object_ref (self);
-       info->mime_part = g_object_ref (part);
-       info->callback = user_callback;
-       info->userdata = user_data;
-
-       thread = g_thread_create (get_mime_part_size_thread, info, FALSE, NULL);
-
-}
-
 static void
 get_msg_cb (TnyFolder *folder, 
            gboolean cancelled, 
            TnyMsg *msg, 
-           GError **error, 
+           GError *error, 
            gpointer user_data)
 {
        GetMsgAsyncHelper *helper = NULL;
@@ -2005,8 +2085,8 @@ get_msg_cb (TnyFolder *folder,
        priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
 
        /* Check errors and cancel */
-       if (*error) {
-               priv->error = g_error_copy (*error);
+       if (error) {
+               priv->error = g_error_copy (error);
                priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
        } else if (cancelled) {
                priv->status = MODEST_MAIL_OPERATION_STATUS_CANCELED;
@@ -2021,11 +2101,12 @@ get_msg_cb (TnyFolder *folder,
        /* If user defined callback function was defined, call it even
           if the operation failed*/
        if (helper->user_callback) {
-               /* This callback is called into an iddle by tinymail,
-                  and idles are not in the main lock */
-               gdk_threads_enter ();
+               /* This is not a GDK lock because we are a Tinymail callback
+                * which is already GDK locked by Tinymail */
+
+               /* no gdk_threads_enter (), CHECKED */
                helper->user_callback (self, helper->header, msg, helper->user_data);
-               gdk_threads_leave ();   
+               /* no gdk_threads_leave (), CHECKED */
        }
 
        /* Notify about operation end */
@@ -2056,28 +2137,20 @@ get_msg_status_cb (GObject *obj,
        self = helper->mail_op;
        priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
 
-       if(priv->status == MODEST_MAIL_OPERATION_STATUS_CANCELED) {
-               TnyFolder *folder = tny_header_get_folder (helper->header);
-               if (folder) {
-                       TnyAccount *account;
-                       account = tny_folder_get_account (folder);
-                       if (account) {
-                               tny_account_cancel (account);
-                               g_object_unref (account);
-                       }
-                       g_object_unref (folder);
-               }
-              
-               return;
-       }
-
        priv->done = 1;
        priv->total = 1;
 
        state = modest_mail_operation_clone_state (self);
        state->bytes_done = status->position;
        state->bytes_total = status->of_total;
+
+       /* This is not a GDK lock because we are a Tinymail callback
+        * which is already GDK locked by Tinymail */
+
+       /* no gdk_threads_enter (), CHECKED */
        g_signal_emit (G_OBJECT (self), signals[PROGRESS_CHANGED_SIGNAL], 0, state, NULL);
+       /* no gdk_threads_leave (), CHECKED */
+
        g_slice_free (ModestMailOperationState, state);
 }
 
@@ -2110,11 +2183,12 @@ notify_get_msgs_full (gpointer data)
 
        info = (NotifyGetMsgsInfo *) data;      
 
-       /* Call the user callback. Idles are not in the main lock, so
-          lock it */
-       gdk_threads_enter ();
+       /* This is a GDK lock because we are an idle callback and
+        * because info->user_callback can contain Gtk+ code */
+
+       gdk_threads_enter (); /* CHECKED */
        info->user_callback (info->mail_op, info->header, info->msg, info->user_data);
-       gdk_threads_leave ();
+       gdk_threads_leave (); /* CHECKED */
 
        g_slice_free (NotifyGetMsgsInfo, info);
 
@@ -2133,9 +2207,13 @@ get_msgs_full_destroyer (gpointer data)
        info = (GetFullMsgsInfo *) data;
 
        if (info->notify) {
-               gdk_threads_enter ();   
+
+               /* This is a GDK lock because we are an idle callback and
+                * because info->notify can contain Gtk+ code */
+
+               gdk_threads_enter (); /* CHECKED */
                info->notify (info->user_data);
-               gdk_threads_leave ();
+               gdk_threads_leave (); /* CHECKED */
        }
 
        /* free */
@@ -2163,6 +2241,12 @@ get_msgs_full_thread (gpointer thr_user_data)
                header = TNY_HEADER (tny_iterator_get_current (iter));
                folder = tny_header_get_folder (header);
                                
+               /* Check for cached messages */
+               if (tny_header_get_flags (header) & TNY_HEADER_FLAG_CACHED)
+                       priv->op_type = MODEST_MAIL_OPERATION_TYPE_OPEN;
+               else 
+                       priv->op_type = MODEST_MAIL_OPERATION_TYPE_RECEIVE;
+
                /* Get message from folder */
                if (folder) {
                        TnyMsg *msg;
@@ -2204,7 +2288,10 @@ get_msgs_full_thread (gpointer thr_user_data)
                                     MODEST_MAIL_OPERATION_ERROR_ITEM_NOT_FOUND,
                                     "Error trying to get a message. No folder found for header");
                }
-               g_object_unref (header);                
+
+               if (header)
+                       g_object_unref (header);
+               
                tny_iterator_next (iter);
        }
 
@@ -2249,10 +2336,16 @@ modest_mail_operation_get_msgs_full (ModestMailOperation *self,
        if (tny_list_get_length (header_list) >= 1) {
                iter = tny_list_create_iterator (header_list);
                header = TNY_HEADER (tny_iterator_get_current (iter));
-               folder = tny_header_get_folder (header);                
-               priv->account = modest_tny_folder_get_account (TNY_FOLDER(folder));
-               g_object_unref (header);
-               g_object_unref (folder);
+               if (header) {
+                       folder = tny_header_get_folder (header);
+                       if (folder) {           
+                               priv->account = modest_tny_folder_get_account (TNY_FOLDER(folder));
+
+                               g_object_unref (folder);
+                       }
+
+                       g_object_unref (header);
+               }
 
                if (tny_list_get_length (header_list) == 1) {
                        g_object_unref (iter);
@@ -2276,9 +2369,12 @@ modest_mail_operation_get_msgs_full (ModestMailOperation *self,
        if (iter != NULL) {
                while (!tny_iterator_is_done (iter) && size_ok) {
                        header = TNY_HEADER (tny_iterator_get_current (iter));
-                       if (tny_header_get_message_size (header) >= max_size)
-                               size_ok = FALSE;
-                       g_object_unref (header);
+                       if (header) {
+                               if (tny_header_get_message_size (header) >= max_size)
+                                       size_ok = FALSE;
+                               g_object_unref (header);
+                       }
+
                        tny_iterator_next (iter);
                }
                g_object_unref (iter);
@@ -2310,7 +2406,8 @@ modest_mail_operation_get_msgs_full (ModestMailOperation *self,
 
 
 void 
-modest_mail_operation_remove_msg (ModestMailOperation *self,  TnyHeader *header,
+modest_mail_operation_remove_msg (ModestMailOperation *self,  
+                                 TnyHeader *header,
                                  gboolean remove_to_trash /*ignored*/)
 {
        TnyFolder *folder;
@@ -2330,19 +2427,22 @@ modest_mail_operation_remove_msg (ModestMailOperation *self,  TnyHeader *header,
 
        priv->status = MODEST_MAIL_OPERATION_STATUS_IN_PROGRESS;
 
-
+       /* remove message from folder */
        tny_folder_remove_msg (folder, header, &(priv->error));
        if (!priv->error) {
                tny_header_set_flags (header, TNY_HEADER_FLAG_DELETED);
                tny_header_set_flags (header, TNY_HEADER_FLAG_SEEN);
 
                if (TNY_IS_CAMEL_IMAP_FOLDER (folder))
-                       tny_folder_sync(folder, FALSE, &(priv->error)); /* FALSE --> don't expunge */
+/*                     tny_folder_sync_async(folder, FALSE, NULL, NULL, NULL); /\* FALSE --> don't expunge *\/ */
+                       tny_folder_sync (folder, FALSE, &(priv->error)); /* FALSE --> don't expunge */
                else if (TNY_IS_CAMEL_POP_FOLDER (folder))
-                       tny_folder_sync(folder, TRUE, &(priv->error)); /* TRUE --> expunge */
+/*                     tny_folder_sync_async(folder, FALSE, NULL, NULL, NULL); /\* TRUE --> dont expunge *\/ */
+                       tny_folder_sync (folder, TRUE, &(priv->error)); /* TRUE --> expunge */
                else
-                       /* lcoal folders */
-                       tny_folder_sync(folder, TRUE, &(priv->error)); /* TRUE --> expunge */
+                       /* local folders */
+/*                     tny_folder_sync_async(folder, TRUE, NULL, NULL, NULL); /\* TRUE --> expunge *\/ */
+                       tny_folder_sync (folder, TRUE, &(priv->error)); /* TRUE --> expunge */
        }
        
        
@@ -2359,6 +2459,66 @@ modest_mail_operation_remove_msg (ModestMailOperation *self,  TnyHeader *header,
        modest_mail_operation_notify_end (self);
 }
 
+void 
+modest_mail_operation_remove_msgs (ModestMailOperation *self,  
+                                  TnyList *headers,
+                                 gboolean remove_to_trash /*ignored*/)
+{
+       TnyFolder *folder;
+       ModestMailOperationPrivate *priv;
+       TnyIterator *iter = NULL;
+       TnyHeader *header = NULL;
+
+       g_return_if_fail (MODEST_IS_MAIL_OPERATION (self));
+       g_return_if_fail (TNY_IS_LIST (headers));
+
+       if (remove_to_trash)
+               g_warning ("remove to trash is not implemented");
+
+       priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
+
+       /* Get folder from first header and sync it */
+       iter = tny_list_create_iterator (headers);
+       header = TNY_HEADER (tny_iterator_get_current (iter));
+       folder = tny_header_get_folder (header);
+       
+       /* Get account and set it into mail_operation */
+       priv->account = modest_tny_folder_get_account (TNY_FOLDER(folder));
+
+       priv->status = MODEST_MAIL_OPERATION_STATUS_IN_PROGRESS;
+
+       /* remove message from folder */
+       tny_folder_remove_msgs (folder, headers, &(priv->error));
+       if (!priv->error) {
+               if (TNY_IS_CAMEL_IMAP_FOLDER (folder))
+/*                     tny_folder_sync_async(folder, FALSE, NULL, NULL, NULL); /\* FALSE --> don't expunge *\/ */
+                       tny_folder_sync (folder, FALSE, &(priv->error)); /* FALSE --> don't expunge */
+               else if (TNY_IS_CAMEL_POP_FOLDER (folder))
+/*                     tny_folder_sync_async(folder, FALSE, NULL, NULL, NULL); /\* TRUE --> dont expunge *\/ */
+                       tny_folder_sync (folder, TRUE, &(priv->error)); /* TRUE --> expunge */
+               else
+                       /* local folders */
+/*                     tny_folder_sync_async(folder, TRUE, NULL, NULL, NULL); /\* TRUE --> expunge *\/ */
+                       tny_folder_sync (folder, TRUE, &(priv->error)); /* TRUE --> expunge */
+       }
+       
+       
+       /* Set status */
+       if (!priv->error)
+               priv->status = MODEST_MAIL_OPERATION_STATUS_SUCCESS;
+       else
+               priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
+
+       /* Free */
+       g_object_unref (header);
+       g_object_unref (iter);
+       g_object_unref (G_OBJECT (folder));
+
+       /* Notify about operation end */
+       modest_mail_operation_notify_end (self);
+}
+
+
 static void
 transfer_msgs_status_cb (GObject *obj,
                         TnyStatus *status,  
@@ -2383,25 +2543,36 @@ transfer_msgs_status_cb (GObject *obj,
        priv->total = status->of_total;
 
        state = modest_mail_operation_clone_state (self);
+
+       /* This is not a GDK lock because we are a Tinymail callback and
+        * Tinymail already acquires the Gdk lock */
+
+       /* no gdk_threads_enter (), CHECKED */
+
        g_signal_emit (G_OBJECT (self), signals[PROGRESS_CHANGED_SIGNAL], 0, state, NULL);
+
+       /* no gdk_threads_leave (), CHECKED */
+
        g_slice_free (ModestMailOperationState, state);
 }
 
 
 static void
-transfer_msgs_cb (TnyFolder *folder, gboolean cancelled, GError **err, gpointer user_data)
+transfer_msgs_cb (TnyFolder *folder, gboolean cancelled, GError *err, gpointer user_data)
 {
        XFerMsgAsyncHelper *helper;
        ModestMailOperation *self;
        ModestMailOperationPrivate *priv;
+       TnyIterator *iter = NULL;
+       TnyHeader *header = NULL;
 
        helper = (XFerMsgAsyncHelper *) user_data;
        self = helper->mail_op;
 
        priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
 
-       if (*err) {
-               priv->error = g_error_copy (*err);
+       if (err) {
+               priv->error = g_error_copy (err);
                priv->done = 0;
                priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;     
        } else if (cancelled) {
@@ -2413,24 +2584,54 @@ transfer_msgs_cb (TnyFolder *folder, gboolean cancelled, GError **err, gpointer
        } else {
                priv->done = 1;
                priv->status = MODEST_MAIL_OPERATION_STATUS_SUCCESS;
+
+               /* Update folder counts */
+               tny_folder_poke_status (folder);                
+               tny_folder_poke_status (helper->dest_folder);           
        }
 
+       
+       /* Mark headers as deleted and seen */
+       if ((helper->delete) && 
+           (priv->status == MODEST_MAIL_OPERATION_STATUS_SUCCESS)) {
+               iter = tny_list_create_iterator (helper->headers);
+               while (!tny_iterator_is_done (iter)) {
+                       header = TNY_HEADER (tny_iterator_get_current (iter));
+                       tny_header_set_flags (header, TNY_HEADER_FLAG_DELETED);
+                       tny_header_set_flags (header, TNY_HEADER_FLAG_SEEN);
+                       g_object_unref (header);
+
+                       tny_iterator_next (iter);
+               }
+
+       }
+               
+
        /* Notify about operation end */
        modest_mail_operation_notify_end (self);
 
        /* If user defined callback function was defined, call it */
        if (helper->user_callback) {
-               gdk_threads_enter ();
+               /* This is not a GDK lock because we are a Tinymail callback and
+                * Tinymail already acquires the Gdk lock */
+
+               /* no gdk_threads_enter (), CHECKED */
                helper->user_callback (priv->source, helper->user_data);
-               gdk_threads_leave ();
+               /* no gdk_threads_leave (), CHECKED */
        }
 
        /* Free */
-       g_object_unref (helper->headers);
-       g_object_unref (helper->dest_folder);
-       g_object_unref (helper->mail_op);
+       if (helper->headers)
+               g_object_unref (helper->headers);
+       if (helper->dest_folder)
+               g_object_unref (helper->dest_folder);
+       if (helper->mail_op)
+               g_object_unref (helper->mail_op);
+       if (folder)
+               g_object_unref (folder);
+       if (iter)
+               g_object_unref (iter);
        g_slice_free   (XFerMsgAsyncHelper, helper);
-       g_object_unref (folder);
 
 }
 
@@ -2442,12 +2643,12 @@ modest_mail_operation_xfer_msgs (ModestMailOperation *self,
                                 XferMsgsAsynUserCallback user_callback,
                                 gpointer user_data)
 {
-       ModestMailOperationPrivate *priv;
-       TnyIterator *iter;
-       TnyFolder *src_folder;
-       XFerMsgAsyncHelper *helper;
-       TnyHeader *header;
-       ModestTnyFolderRules rules;
+       ModestMailOperationPrivate *priv = NULL;
+       TnyIterator *iter = NULL;
+       TnyFolder *src_folder = NULL;
+       XFerMsgAsyncHelper *helper = NULL;
+       TnyHeader *header = NULL;
+       ModestTnyFolderRules rules = 0;
        const gchar *id1 = NULL;
        const gchar *id2 = NULL;
        gboolean same_folder = FALSE;
@@ -2477,8 +2678,11 @@ modest_mail_operation_xfer_msgs (ModestMailOperation *self,
        /* Get source folder */
        iter = tny_list_create_iterator (headers);
        header = TNY_HEADER (tny_iterator_get_current (iter));
-       src_folder = tny_header_get_folder (header);
-       g_object_unref (header);
+       if (header) {
+               src_folder = tny_header_get_folder (header);
+               g_object_unref (header);
+       }
+
        g_object_unref (iter);
 
        /* Check folder source and destination */
@@ -2507,6 +2711,7 @@ modest_mail_operation_xfer_msgs (ModestMailOperation *self,
        helper->headers = g_object_ref(headers);
        helper->user_callback = user_callback;
        helper->user_data = user_data;
+       helper->delete = delete_original;
 
        /* Get account and set it into mail_operation */
        priv->account = modest_tny_folder_get_account (src_folder);
@@ -2525,7 +2730,7 @@ modest_mail_operation_xfer_msgs (ModestMailOperation *self,
 static void
 on_refresh_folder (TnyFolder   *folder, 
                   gboolean     cancelled, 
-                  GError     **error,
+                  GError     *error,
                   gpointer     user_data)
 {
        RefreshAsyncHelper *helper = NULL;
@@ -2536,9 +2741,13 @@ on_refresh_folder (TnyFolder   *folder,
        self = helper->mail_op;
        priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
 
-       if (*error) {
-               priv->error = g_error_copy (*error);
+       g_return_if_fail(priv!=NULL);
+
+       if (error) {
+               priv->error = g_error_copy (error);
                priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
+               printf("DEBUG: %s: Operation error:\n %s", __FUNCTION__,
+                      error->message);
                goto out;
        }
 
@@ -2548,24 +2757,27 @@ on_refresh_folder (TnyFolder   *folder,
                             MODEST_MAIL_OPERATION_ERROR_ITEM_NOT_FOUND,
                             _("Error trying to refresh the contents of %s"),
                             tny_folder_get_name (folder));
+               printf("DEBUG: %s: Operation cancelled.\n", __FUNCTION__);
                goto out;
        }
 
        priv->status = MODEST_MAIL_OPERATION_STATUS_SUCCESS;
- out:
+
        /* Call user defined callback, if it exists */
        if (helper->user_callback) {
-               gdk_threads_enter ();
+
+               /* This is not a GDK lock because we are a Tinymail callback and
+                * Tinymail already acquires the Gdk lock */
                helper->user_callback (self, folder, helper->user_data);
-               gdk_threads_leave ();
        }
 
+ out:
        /* Free */
-       g_object_unref (helper->mail_op);
        g_slice_free   (RefreshAsyncHelper, helper);
 
        /* Notify about operation end */
        modest_mail_operation_notify_end (self);
+       g_object_unref(self);
 }
 
 static void
@@ -2592,7 +2804,11 @@ on_refresh_folder_status_update (GObject *obj,
        priv->total = status->of_total;
 
        state = modest_mail_operation_clone_state (self);
+
+       /* This is not a GDK lock because we are a Tinymail callback and
+        * Tinymail already acquires the Gdk lock */
        g_signal_emit (G_OBJECT (self), signals[PROGRESS_CHANGED_SIGNAL], 0, state, NULL);
+
        g_slice_free (ModestMailOperationState, state);
 }
 
@@ -2653,7 +2869,9 @@ modest_mail_operation_notify_end (ModestMailOperation *self)
                priv->account_name = NULL;
        }
        
-       /* Notify the observers about the mail opertation end */
+       /* Notify the observers about the mail operation end */
+       /* We do not wrapp this emission because we assume that this
+          function is always called from within the main lock */
        state = modest_mail_operation_clone_state (self);
        g_signal_emit (G_OBJECT (self), signals[PROGRESS_CHANGED_SIGNAL], 0, state, NULL);
        g_slice_free (ModestMailOperationState, state);