* Emission of progress-changed signal is not alowed, because hang on
[modest] / src / modest-mail-operation.c
1 /* Copyright (c) 2006, Nokia Corporation
2  * All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are
6  * met:
7  *
8  * * Redistributions of source code must retain the above copyright
9  *   notice, this list of conditions and the following disclaimer.
10  * * Redistributions in binary form must reproduce the above copyright
11  *   notice, this list of conditions and the following disclaimer in the
12  *   documentation and/or other materials provided with the distribution.
13  * * Neither the name of the Nokia Corporation nor the names of its
14  *   contributors may be used to endorse or promote products derived from
15  *   this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  */
29
30 #include <string.h>
31 #include <stdarg.h>
32 #include <tny-mime-part.h>
33 #include <tny-store-account.h>
34 #include <tny-folder-store.h>
35 #include <tny-folder-store-query.h>
36 #include <tny-camel-stream.h>
37 #include <tny-camel-pop-store-account.h>
38 #include <tny-camel-pop-folder.h>
39 #include <tny-camel-imap-folder.h>
40 #include <tny-camel-mem-stream.h>
41 #include <tny-simple-list.h>
42 #include <tny-send-queue.h>
43 #include <tny-status.h>
44 #include <tny-folder-observer.h>
45 #include <camel/camel-stream-mem.h>
46 #include <glib/gi18n.h>
47 #include "modest-platform.h"
48 #include <modest-tny-account.h>
49 #include <modest-tny-send-queue.h>
50 #include <modest-runtime.h>
51 #include "modest-text-utils.h"
52 #include "modest-tny-msg.h"
53 #include "modest-tny-folder.h"
54 #include "modest-tny-account-store.h"
55 #include "modest-tny-platform-factory.h"
56 #include "modest-marshal.h"
57 #include "modest-error.h"
58 #include "modest-mail-operation.h"
59
60 #define KB 1024
61
62 /* 
63  * Remove all these #ifdef stuff when the tinymail's idle calls become
64  * locked
65  */
66 #define TINYMAIL_IDLES_NOT_LOCKED_YET 1
67
68 /* 'private'/'protected' functions */
69 static void modest_mail_operation_class_init (ModestMailOperationClass *klass);
70 static void modest_mail_operation_init       (ModestMailOperation *obj);
71 static void modest_mail_operation_finalize   (GObject *obj);
72
73 static void     get_msg_cb (TnyFolder *folder, 
74                             gboolean cancelled, 
75                             TnyMsg *msg, 
76                             GError *rr, 
77                             gpointer user_data);
78
79 static void     get_msg_status_cb (GObject *obj,
80                                    TnyStatus *status,  
81                                    gpointer user_data);
82
83 static void     modest_mail_operation_notify_end (ModestMailOperation *self);
84
85 enum _ModestMailOperationSignals 
86 {
87         PROGRESS_CHANGED_SIGNAL,
88
89         NUM_SIGNALS
90 };
91
92 typedef struct _ModestMailOperationPrivate ModestMailOperationPrivate;
93 struct _ModestMailOperationPrivate {
94         TnyAccount                 *account;
95         gchar                                                                            *account_name;
96         guint                      done;
97         guint                      total;
98         GObject                   *source;
99         GError                    *error;
100         ErrorCheckingUserCallback  error_checking;
101         gpointer                   error_checking_user_data;
102         ModestMailOperationStatus  status;      
103         ModestMailOperationTypeOperation op_type;
104 };
105
106 #define MODEST_MAIL_OPERATION_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
107                                                    MODEST_TYPE_MAIL_OPERATION, \
108                                                    ModestMailOperationPrivate))
109
110 #define CHECK_EXCEPTION(priv, new_status)  if (priv->error) {\
111                                                    priv->status = new_status;\
112                                                }
113
114 typedef struct _GetMsgAsyncHelper {     
115         ModestMailOperation *mail_op;
116         TnyHeader *header;
117         GetMsgAsyncUserCallback user_callback;  
118         gpointer user_data;
119 } GetMsgAsyncHelper;
120
121 typedef struct _RefreshAsyncHelper {    
122         ModestMailOperation *mail_op;
123         RefreshAsyncUserCallback user_callback; 
124         gpointer user_data;
125 } RefreshAsyncHelper;
126
127 typedef struct _XFerMsgAsyncHelper
128 {
129         ModestMailOperation *mail_op;
130         TnyList *headers;
131         TnyFolder *dest_folder;
132         XferMsgsAsynUserCallback user_callback; 
133         gboolean delete;
134         gpointer user_data;
135 } XFerMsgAsyncHelper;
136
137 typedef void (*ModestMailOperationCreateMsgCallback) (ModestMailOperation *mail_op,
138                                                       TnyMsg *msg,
139                                                       gpointer userdata);
140
141 static void          modest_mail_operation_create_msg (ModestMailOperation *self,
142                                                        const gchar *from, const gchar *to,
143                                                        const gchar *cc, const gchar *bcc,
144                                                        const gchar *subject, const gchar *plain_body,
145                                                        const gchar *html_body, const GList *attachments_list,
146                                                        TnyHeaderFlags priority_flags,
147                                                        ModestMailOperationCreateMsgCallback callback,
148                                                        gpointer userdata);
149
150 static gboolean      idle_notify_queue (gpointer data);
151 typedef struct
152 {
153         ModestMailOperation *mail_op;
154         gchar *from;
155         gchar *to;
156         gchar *cc;
157         gchar *bcc;
158         gchar *subject;
159         gchar *plain_body;
160         gchar *html_body;
161         GList *attachments_list;
162         TnyHeaderFlags priority_flags;
163         ModestMailOperationCreateMsgCallback callback;
164         gpointer userdata;
165 } CreateMsgInfo;
166
167 typedef struct
168 {
169         ModestMailOperation *mail_op;
170         TnyMsg *msg;
171         ModestMailOperationCreateMsgCallback callback;
172         gpointer userdata;
173 } CreateMsgIdleInfo;
174
175 /* globals */
176 static GObjectClass *parent_class = NULL;
177
178 static guint signals[NUM_SIGNALS] = {0};
179
180 GType
181 modest_mail_operation_get_type (void)
182 {
183         static GType my_type = 0;
184         if (!my_type) {
185                 static const GTypeInfo my_info = {
186                         sizeof(ModestMailOperationClass),
187                         NULL,           /* base init */
188                         NULL,           /* base finalize */
189                         (GClassInitFunc) modest_mail_operation_class_init,
190                         NULL,           /* class finalize */
191                         NULL,           /* class data */
192                         sizeof(ModestMailOperation),
193                         1,              /* n_preallocs */
194                         (GInstanceInitFunc) modest_mail_operation_init,
195                         NULL
196                 };
197                 my_type = g_type_register_static (G_TYPE_OBJECT,
198                                                   "ModestMailOperation",
199                                                   &my_info, 0);
200         }
201         return my_type;
202 }
203
204 static void
205 modest_mail_operation_class_init (ModestMailOperationClass *klass)
206 {
207         GObjectClass *gobject_class;
208         gobject_class = (GObjectClass*) klass;
209
210         parent_class            = g_type_class_peek_parent (klass);
211         gobject_class->finalize = modest_mail_operation_finalize;
212
213         g_type_class_add_private (gobject_class, sizeof(ModestMailOperationPrivate));
214
215         /**
216          * ModestMailOperation::progress-changed
217          * @self: the #MailOperation that emits the signal
218          * @user_data: user data set when the signal handler was connected
219          *
220          * Emitted when the progress of a mail operation changes
221          */
222         signals[PROGRESS_CHANGED_SIGNAL] = 
223                 g_signal_new ("progress-changed",
224                               G_TYPE_FROM_CLASS (gobject_class),
225                               G_SIGNAL_RUN_FIRST,
226                               G_STRUCT_OFFSET (ModestMailOperationClass, progress_changed),
227                               NULL, NULL,
228                               g_cclosure_marshal_VOID__POINTER,
229                               G_TYPE_NONE, 1, G_TYPE_POINTER);
230
231 }
232
233 static void
234 modest_mail_operation_init (ModestMailOperation *obj)
235 {
236         ModestMailOperationPrivate *priv;
237
238         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(obj);
239
240         priv->account        = NULL;
241         priv->status         = MODEST_MAIL_OPERATION_STATUS_INVALID;
242         priv->op_type        = MODEST_MAIL_OPERATION_TYPE_UNKNOWN;
243         priv->error          = NULL;
244         priv->done           = 0;
245         priv->total          = 0;
246         priv->source         = NULL;
247         priv->error_checking = NULL;
248         priv->error_checking_user_data = NULL;
249 }
250
251 static void
252 modest_mail_operation_finalize (GObject *obj)
253 {
254         ModestMailOperationPrivate *priv;
255
256         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(obj);
257
258         
259         
260         if (priv->error) {
261                 g_error_free (priv->error);
262                 priv->error = NULL;
263         }
264         if (priv->source) {
265                 g_object_unref (priv->source);
266                 priv->source = NULL;
267         }
268         if (priv->account) {
269                 g_object_unref (priv->account);
270                 priv->account = NULL;
271         }
272
273
274         G_OBJECT_CLASS(parent_class)->finalize (obj);
275 }
276
277 ModestMailOperation*
278 modest_mail_operation_new (ModestMailOperationTypeOperation op_type, 
279                            GObject *source)
280 {
281         ModestMailOperation *obj;
282         ModestMailOperationPrivate *priv;
283                 
284         obj = MODEST_MAIL_OPERATION(g_object_new(MODEST_TYPE_MAIL_OPERATION, NULL));
285         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(obj);
286
287         priv->op_type = op_type;
288         if (source != NULL)
289                 priv->source = g_object_ref(source);
290
291         return obj;
292 }
293
294 ModestMailOperation*
295 modest_mail_operation_new_with_error_handling (ModestMailOperationTypeOperation op_type,
296                                                GObject *source,
297                                                ErrorCheckingUserCallback error_handler,
298                                                gpointer user_data)
299 {
300         ModestMailOperation *obj;
301         ModestMailOperationPrivate *priv;
302                 
303         obj = modest_mail_operation_new (op_type, source);
304         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(obj);
305         
306         g_return_val_if_fail (error_handler != NULL, obj);
307         priv->error_checking = error_handler;
308
309         return obj;
310 }
311
312 void
313 modest_mail_operation_execute_error_handler (ModestMailOperation *self)
314 {
315         ModestMailOperationPrivate *priv;
316         
317         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
318         g_return_if_fail(priv->status != MODEST_MAIL_OPERATION_STATUS_SUCCESS);     
319
320         if (priv->error_checking != NULL)
321                 priv->error_checking (self, priv->error_checking_user_data);
322 }
323
324
325 ModestMailOperationTypeOperation
326 modest_mail_operation_get_type_operation (ModestMailOperation *self)
327 {
328         ModestMailOperationPrivate *priv;
329
330         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
331         
332         return priv->op_type;
333 }
334
335 gboolean 
336 modest_mail_operation_is_mine (ModestMailOperation *self, 
337                                GObject *me)
338 {
339         ModestMailOperationPrivate *priv;
340
341         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
342         if (priv->source == NULL) return FALSE;
343
344         return priv->source == me;
345 }
346
347 GObject *
348 modest_mail_operation_get_source (ModestMailOperation *self)
349 {
350         ModestMailOperationPrivate *priv;
351
352         g_return_val_if_fail (self, NULL);
353         
354         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
355         if (!priv) {
356                 g_warning ("BUG: %s: priv == NULL", __FUNCTION__);
357                 return NULL;
358         }
359         
360         return g_object_ref (priv->source);
361 }
362
363 ModestMailOperationStatus
364 modest_mail_operation_get_status (ModestMailOperation *self)
365 {
366         ModestMailOperationPrivate *priv;
367
368         g_return_val_if_fail (self, MODEST_MAIL_OPERATION_STATUS_INVALID);
369         g_return_val_if_fail (MODEST_IS_MAIL_OPERATION (self),
370                               MODEST_MAIL_OPERATION_STATUS_INVALID);
371
372         priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
373         if (!priv) {
374                 g_warning ("BUG: %s: priv == NULL", __FUNCTION__);
375                 return MODEST_MAIL_OPERATION_STATUS_INVALID;
376         }
377         
378         return priv->status;
379 }
380
381 const GError *
382 modest_mail_operation_get_error (ModestMailOperation *self)
383 {
384         ModestMailOperationPrivate *priv;
385
386         g_return_val_if_fail (self, NULL);
387         g_return_val_if_fail (MODEST_IS_MAIL_OPERATION (self), NULL);
388
389         priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
390
391         if (!priv) {
392                 g_warning ("BUG: %s: priv == NULL", __FUNCTION__);
393                 return NULL;
394         }
395
396         return priv->error;
397 }
398
399 gboolean 
400 modest_mail_operation_cancel (ModestMailOperation *self)
401 {
402         ModestMailOperationPrivate *priv;
403         gboolean canceled = FALSE;
404
405         g_return_val_if_fail (MODEST_IS_MAIL_OPERATION (self), FALSE);
406
407         priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
408
409         /* Note that if we call cancel with an already canceled mail
410            operation the progress changed signal won't be emitted */
411         if (priv->status == MODEST_MAIL_OPERATION_STATUS_CANCELED)
412                 return FALSE;
413
414         /* Set new status */
415         priv->status = MODEST_MAIL_OPERATION_STATUS_CANCELED;
416         
417         /* Cancel the mail operation. We need to wrap it between this
418            start/stop operations to allow following calls to the
419            account */
420         g_return_val_if_fail (priv->account, FALSE);
421         tny_account_cancel (priv->account);
422
423         return canceled;
424 }
425
426 guint 
427 modest_mail_operation_get_task_done (ModestMailOperation *self)
428 {
429         ModestMailOperationPrivate *priv;
430
431         g_return_val_if_fail (MODEST_IS_MAIL_OPERATION (self), 0);
432
433         priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
434         return priv->done;
435 }
436
437 guint 
438 modest_mail_operation_get_task_total (ModestMailOperation *self)
439 {
440         ModestMailOperationPrivate *priv;
441
442         g_return_val_if_fail (MODEST_IS_MAIL_OPERATION (self), 0);
443
444         priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
445         return priv->total;
446 }
447
448 gboolean
449 modest_mail_operation_is_finished (ModestMailOperation *self)
450 {
451         ModestMailOperationPrivate *priv;
452         gboolean retval = FALSE;
453
454         if (!MODEST_IS_MAIL_OPERATION (self)) {
455                 g_warning ("%s: invalid parametter", G_GNUC_FUNCTION);
456                 return retval;
457         }
458
459         priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
460
461         if (priv->status == MODEST_MAIL_OPERATION_STATUS_SUCCESS   ||
462             priv->status == MODEST_MAIL_OPERATION_STATUS_FAILED    ||
463             priv->status == MODEST_MAIL_OPERATION_STATUS_CANCELED  ||
464             priv->status == MODEST_MAIL_OPERATION_STATUS_FINISHED_WITH_ERRORS) {
465                 retval = TRUE;
466         } else {
467                 retval = FALSE;
468         }
469
470         return retval;
471 }
472
473 guint
474 modest_mail_operation_get_id (ModestMailOperation *self)
475 {
476         ModestMailOperationPrivate *priv;
477
478         g_return_val_if_fail (MODEST_IS_MAIL_OPERATION (self), 0);
479
480         priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
481         return priv->done;
482 }
483
484 guint 
485 modest_mail_operation_set_id (ModestMailOperation *self,
486                               guint id)
487 {
488         ModestMailOperationPrivate *priv;
489
490         g_return_val_if_fail (MODEST_IS_MAIL_OPERATION (self), 0);
491
492         priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
493         return priv->done;
494 }
495
496 /*
497  * Creates an image of the current state of a mail operation, the
498  * caller must free it
499  */
500 static ModestMailOperationState *
501 modest_mail_operation_clone_state (ModestMailOperation *self)
502 {
503         ModestMailOperationState *state;
504         ModestMailOperationPrivate *priv;
505
506         /* FIXME: this should be fixed properly
507          * 
508          * in some cases, priv was NULL, so checking here to
509          * make sure.
510          */
511         g_return_val_if_fail (self, NULL);
512         priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
513         g_return_val_if_fail (priv, NULL);
514
515         if (!priv)
516                 return NULL;
517
518         state = g_slice_new (ModestMailOperationState);
519
520         state->status = priv->status;
521         state->op_type = priv->op_type;
522         state->done = priv->done;
523         state->total = priv->total;
524         state->finished = modest_mail_operation_is_finished (self);
525         state->bytes_done = 0;
526         state->bytes_total = 0;
527
528         return state;
529 }
530
531 /* ******************************************************************* */
532 /* ************************** SEND   ACTIONS ************************* */
533 /* ******************************************************************* */
534
535 void
536 modest_mail_operation_send_mail (ModestMailOperation *self,
537                                  TnyTransportAccount *transport_account,
538                                  TnyMsg* msg)
539 {
540         TnySendQueue *send_queue = NULL;
541         ModestMailOperationPrivate *priv;
542         
543         g_return_if_fail (MODEST_IS_MAIL_OPERATION (self));
544         g_return_if_fail (TNY_IS_TRANSPORT_ACCOUNT (transport_account));
545         g_return_if_fail (TNY_IS_MSG (msg));
546         
547         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
548
549         /* Get account and set it into mail_operation */
550         priv->account = g_object_ref (transport_account);
551         priv->done = 1;
552         priv->total = 1;
553
554         send_queue = TNY_SEND_QUEUE (modest_runtime_get_send_queue (transport_account));
555         if (!TNY_IS_SEND_QUEUE(send_queue)) {
556                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
557                              MODEST_MAIL_OPERATION_ERROR_ITEM_NOT_FOUND,
558                              "modest: could not find send queue for account\n");
559         } else {
560                 /* TODO: connect to the msg-sent in order to know when
561                    the mail operation is finished */
562                 tny_send_queue_add (send_queue, msg, &(priv->error));
563                 /* TODO: we're setting always success, do the check in
564                    the handler */
565                 priv->status = MODEST_MAIL_OPERATION_STATUS_SUCCESS;
566         }
567
568         /* TODO: do this in the handler of the "msg-sent"
569            signal.Notify about operation end */
570         modest_mail_operation_notify_end (self);
571 }
572
573 static gboolean
574 idle_create_msg_cb (gpointer idle_data)
575 {
576         CreateMsgIdleInfo *info = (CreateMsgIdleInfo *) idle_data;
577
578         /* This is a GDK lock because we are an idle callback and
579          * info->callback can contain Gtk+ code */
580
581         gdk_threads_enter (); /* CHECKED */
582         info->callback (info->mail_op, info->msg, info->userdata);
583         gdk_threads_leave (); /* CHECKED */
584
585         g_object_unref (info->mail_op);
586         if (info->msg)
587                 g_object_unref (info->msg);
588         g_slice_free (CreateMsgIdleInfo, info);
589
590         return FALSE;
591 }
592
593 static gpointer 
594 create_msg_thread (gpointer thread_data)
595 {
596         CreateMsgInfo *info = (CreateMsgInfo *) thread_data;
597         TnyMsg *new_msg = NULL;
598         ModestMailOperationPrivate *priv;
599
600         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(info->mail_op);
601         if (info->html_body == NULL) {
602                 new_msg = modest_tny_msg_new (info->to, info->from, info->cc, 
603                                               info->bcc, info->subject, info->plain_body, 
604                                               info->attachments_list); /* FIXME: attachments */
605         } else {
606                 new_msg = modest_tny_msg_new_html_plain (info->to, info->from, info->cc,
607                                                          info->bcc, info->subject, info->html_body,
608                                                          info->plain_body, info->attachments_list);
609         }
610
611         if (new_msg) {
612                 TnyHeader *header;
613                 /* Set priority flags in message */
614                 header = tny_msg_get_header (new_msg);
615                 if (info->priority_flags != 0)
616                         tny_header_set_flags (header, info->priority_flags);
617                 if (info->attachments_list != NULL) {
618                         tny_header_set_flags (header, TNY_HEADER_FLAG_ATTACHMENTS);
619                 }
620                 g_object_unref (G_OBJECT(header));
621         } else {
622                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
623                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
624                              MODEST_MAIL_OPERATION_ERROR_INSTANCE_CREATION_FAILED,
625                              "modest: failed to create a new msg\n");
626         }
627
628
629         g_free (info->to);
630         g_free (info->from);
631         g_free (info->cc);
632         g_free (info->bcc);
633         g_free (info->plain_body);
634         g_free (info->html_body);
635         g_free (info->subject);
636         g_list_foreach (info->attachments_list, (GFunc) g_object_unref, NULL);
637         g_list_free (info->attachments_list);
638
639         if (info->callback) {
640                 CreateMsgIdleInfo *idle_info;
641                 idle_info = g_slice_new0 (CreateMsgIdleInfo);
642                 idle_info->mail_op = info->mail_op;
643                 g_object_ref (info->mail_op);
644                 idle_info->msg = new_msg;
645                 if (new_msg)
646                         g_object_ref (new_msg);
647                 idle_info->callback = info->callback;
648                 idle_info->userdata = info->userdata;
649                 g_idle_add (idle_create_msg_cb, idle_info);
650         } else {
651                 g_idle_add (idle_notify_queue, g_object_ref (info->mail_op));
652         }
653
654         g_object_unref (info->mail_op);
655         g_slice_free (CreateMsgInfo, info);
656         return NULL;
657 }
658
659 void
660 modest_mail_operation_create_msg (ModestMailOperation *self,
661                                   const gchar *from, const gchar *to,
662                                   const gchar *cc, const gchar *bcc,
663                                   const gchar *subject, const gchar *plain_body,
664                                   const gchar *html_body,
665                                   const GList *attachments_list,
666                                   TnyHeaderFlags priority_flags,
667                                   ModestMailOperationCreateMsgCallback callback,
668                                   gpointer userdata)
669 {
670         CreateMsgInfo *info = NULL;
671
672         info = g_slice_new0 (CreateMsgInfo);
673         info->mail_op = self;
674         g_object_ref (self);
675
676         info->from = g_strdup (from);
677         info->to = g_strdup (to);
678         info->cc = g_strdup (cc);
679         info->bcc  = g_strdup (bcc);
680         info->subject = g_strdup (subject);
681         info->plain_body = g_strdup (plain_body);
682         info->html_body = g_strdup (html_body);
683         info->attachments_list = g_list_copy ((GList *) attachments_list);
684         g_list_foreach (info->attachments_list, (GFunc) g_object_ref, NULL);
685         info->priority_flags = priority_flags;
686
687         info->callback = callback;
688         info->userdata = userdata;
689
690         g_thread_create (create_msg_thread, info, FALSE, NULL);
691 }
692
693 typedef struct
694 {
695         TnyTransportAccount *transport_account;
696         TnyMsg *draft_msg;
697 } SendNewMailInfo;
698
699 static void
700 modest_mail_operation_send_new_mail_cb (ModestMailOperation *self,
701                                         TnyMsg *msg,
702                                         gpointer userdata)
703 {
704         SendNewMailInfo *info = (SendNewMailInfo *) userdata;
705         TnyFolder *draft_folder = NULL;
706         TnyFolder *outbox_folder = NULL;
707         TnyHeader *header;
708
709         if (!msg) {
710                 goto end;
711         }
712
713         /* Call mail operation */
714         modest_mail_operation_send_mail (self, info->transport_account, msg);
715
716         /* Remove old mail from its source folder */
717         draft_folder = modest_tny_account_get_special_folder (TNY_ACCOUNT (info->transport_account), TNY_FOLDER_TYPE_DRAFTS);
718         outbox_folder = modest_tny_account_get_special_folder (TNY_ACCOUNT (info->transport_account), TNY_FOLDER_TYPE_OUTBOX);
719         if (info->draft_msg != NULL) {
720                 TnyFolder *folder = NULL;
721                 TnyFolder *src_folder = NULL;
722                 TnyFolderType folder_type;              
723                 folder = tny_msg_get_folder (info->draft_msg);          
724                 if (folder == NULL) goto end;
725                 folder_type = modest_tny_folder_guess_folder_type (folder);
726                 if (folder_type == TNY_FOLDER_TYPE_OUTBOX) 
727                         src_folder = outbox_folder;
728                 else 
729                         src_folder = draft_folder;
730
731                 /* Note: This can fail (with a warning) if the message is not really already in a folder,
732                  * because this function requires it to have a UID. */          
733                 header = tny_msg_get_header (info->draft_msg);
734                 tny_folder_remove_msg (src_folder, header, NULL);
735                 tny_header_set_flags (header, TNY_HEADER_FLAG_DELETED);
736                 tny_header_set_flags (header, TNY_HEADER_FLAG_SEEN);
737                 g_object_unref (header);
738                 g_object_unref (folder);
739         }
740
741 end:
742         if (info->draft_msg)
743                 g_object_unref (info->draft_msg);
744         if (draft_folder)
745                 g_object_unref (draft_folder);
746         if (outbox_folder)
747                 g_object_unref (outbox_folder);
748         if (info->transport_account)
749                 g_object_unref (info->transport_account);
750         g_slice_free (SendNewMailInfo, info);
751         modest_mail_operation_notify_end (self);
752 }
753
754 void
755 modest_mail_operation_send_new_mail (ModestMailOperation *self,
756                                      TnyTransportAccount *transport_account,
757                                      TnyMsg *draft_msg,
758                                      const gchar *from,  const gchar *to,
759                                      const gchar *cc,  const gchar *bcc,
760                                      const gchar *subject, const gchar *plain_body,
761                                      const gchar *html_body,
762                                      const GList *attachments_list,
763                                      TnyHeaderFlags priority_flags)
764 {
765         ModestMailOperationPrivate *priv = NULL;
766         SendNewMailInfo *info;
767
768         g_return_if_fail (MODEST_IS_MAIL_OPERATION (self));
769         g_return_if_fail (TNY_IS_TRANSPORT_ACCOUNT (transport_account));
770
771         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
772
773         /* Check parametters */
774         if (to == NULL) {
775                 /* Set status failed and set an error */
776                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
777                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
778                              MODEST_MAIL_OPERATION_ERROR_BAD_PARAMETER,
779                              _("Error trying to send a mail. You need to set at least one recipient"));
780                 return;
781         }
782         info = g_slice_new0 (SendNewMailInfo);
783         info->transport_account = transport_account;
784         if (transport_account)
785                 g_object_ref (transport_account);
786         info->draft_msg = draft_msg;
787         if (draft_msg)
788                 g_object_ref (draft_msg);
789         modest_mail_operation_create_msg (self, from, to, cc, bcc, subject, plain_body, html_body,
790                                           attachments_list, priority_flags,
791                                           modest_mail_operation_send_new_mail_cb, info);
792
793 }
794
795 typedef struct
796 {
797         TnyTransportAccount *transport_account;
798         TnyMsg *draft_msg;
799         ModestMsgEditWindow *edit_window;
800 } SaveToDraftsInfo;
801
802 static void
803 modest_mail_operation_save_to_drafts_cb (ModestMailOperation *self,
804                                          TnyMsg *msg,
805                                          gpointer userdata)
806 {
807         TnyFolder *src_folder = NULL;
808         TnyFolder *folder = NULL;
809         TnyHeader *header = NULL;
810         ModestMailOperationPrivate *priv = NULL;
811         SaveToDraftsInfo *info = (SaveToDraftsInfo *) userdata;
812
813         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
814         if (!msg) {
815                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
816                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
817                              MODEST_MAIL_OPERATION_ERROR_INSTANCE_CREATION_FAILED,
818                              "modest: failed to create a new msg\n");
819                 goto end;
820         }
821
822         folder = modest_tny_account_get_special_folder (TNY_ACCOUNT (info->transport_account), TNY_FOLDER_TYPE_DRAFTS);
823         if (!folder) {
824                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
825                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
826                              MODEST_MAIL_OPERATION_ERROR_ITEM_NOT_FOUND,
827                              "modest: failed to create a new msg\n");
828                 goto end;
829         }
830
831         if (!priv->error)
832                 tny_folder_add_msg (folder, msg, &(priv->error));
833
834         if ((!priv->error) && (info->draft_msg != NULL)) {
835                 header = tny_msg_get_header (info->draft_msg);
836                 src_folder = tny_header_get_folder (header); 
837                 /* Remove the old draft expunging it */
838                 tny_folder_remove_msg (src_folder, header, NULL);
839                 tny_header_set_flags (header, TNY_HEADER_FLAG_DELETED);
840                 tny_header_set_flags (header, TNY_HEADER_FLAG_SEEN);
841                 tny_folder_sync_async (src_folder, TRUE, NULL, NULL, NULL);  /* expunge */
842                 g_object_unref (header);
843         }
844         
845         if (!priv->error)
846                 priv->status = MODEST_MAIL_OPERATION_STATUS_SUCCESS;
847         else
848                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
849
850         if (info->edit_window)
851                 modest_msg_edit_window_set_draft (info->edit_window, msg);
852
853
854 end:
855         if (folder)
856                 g_object_unref (G_OBJECT(folder));
857         if (src_folder)
858                 g_object_unref (G_OBJECT(src_folder));
859         if (info->edit_window)
860                 g_object_unref (G_OBJECT(info->edit_window));
861         if (info->draft_msg)
862                 g_object_unref (G_OBJECT (info->draft_msg));
863         if (info->transport_account)
864                 g_object_unref (G_OBJECT(info->transport_account));
865         g_slice_free (SaveToDraftsInfo, info);
866
867         modest_mail_operation_notify_end (self);
868 }
869
870 void
871 modest_mail_operation_save_to_drafts (ModestMailOperation *self,
872                                       TnyTransportAccount *transport_account,
873                                       TnyMsg *draft_msg,
874                                       ModestMsgEditWindow *edit_window,
875                                       const gchar *from,  const gchar *to,
876                                       const gchar *cc,  const gchar *bcc,
877                                       const gchar *subject, const gchar *plain_body,
878                                       const gchar *html_body,
879                                       const GList *attachments_list,
880                                       TnyHeaderFlags priority_flags)
881 {
882         ModestMailOperationPrivate *priv = NULL;
883         SaveToDraftsInfo *info = NULL;
884
885         g_return_if_fail (MODEST_IS_MAIL_OPERATION (self));
886         g_return_if_fail (TNY_IS_TRANSPORT_ACCOUNT (transport_account));
887
888         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
889
890         /* Get account and set it into mail_operation */
891         priv->account = g_object_ref (transport_account);
892
893         info = g_slice_new0 (SaveToDraftsInfo);
894         info->transport_account = g_object_ref (transport_account);
895         info->draft_msg = draft_msg;
896         if (draft_msg)
897                 g_object_ref (draft_msg);
898         info->edit_window = edit_window;
899         if (edit_window)
900                 g_object_ref (edit_window);
901
902         modest_mail_operation_create_msg (self, from, to, cc, bcc, subject, plain_body, html_body,
903                                           attachments_list, priority_flags,
904                                           modest_mail_operation_save_to_drafts_cb, info);
905
906 }
907
908 typedef struct 
909 {
910         ModestMailOperation *mail_op;
911         TnyStoreAccount *account;
912         TnyTransportAccount *transport_account;
913         gint max_size;
914         gint retrieve_limit;
915         gchar *retrieve_type;
916         gchar *account_name;
917         UpdateAccountCallback callback;
918         gpointer user_data;
919         gint new_headers;
920 } UpdateAccountInfo;
921
922 typedef struct
923 {
924         ModestMailOperation *mail_op;
925         TnyMimePart *mime_part;
926         gssize size;
927         GetMimePartSizeCallback callback;
928         gpointer userdata;
929 } GetMimePartSizeInfo;
930
931 /***** I N T E R N A L    F O L D E R    O B S E R V E R *****/
932 /* We use this folder observer to track the headers that have been
933  * added to a folder */
934 typedef struct {
935         GObject parent;
936         TnyList *new_headers;
937 } InternalFolderObserver;
938
939 typedef struct {
940         GObjectClass parent;
941 } InternalFolderObserverClass;
942
943 static void tny_folder_observer_init (TnyFolderObserverIface *idace);
944
945 G_DEFINE_TYPE_WITH_CODE (InternalFolderObserver,
946                          internal_folder_observer,
947                          G_TYPE_OBJECT,
948                          G_IMPLEMENT_INTERFACE(TNY_TYPE_FOLDER_OBSERVER, tny_folder_observer_init));
949
950
951 static void
952 foreach_add_item (gpointer header, gpointer user_data)
953 {
954         tny_list_prepend (TNY_LIST (user_data), 
955                           g_object_ref (G_OBJECT (header)));
956 }
957
958 /* This is the method that looks for new messages in a folder */
959 static void
960 internal_folder_observer_update (TnyFolderObserver *self, TnyFolderChange *change)
961 {
962         InternalFolderObserver *derived = (InternalFolderObserver *)self;
963         
964         TnyFolderChangeChanged changed;
965
966         changed = tny_folder_change_get_changed (change);
967
968         if (changed & TNY_FOLDER_CHANGE_CHANGED_ADDED_HEADERS) {
969                 TnyList *list;
970
971                 /* Get added headers */
972                 list = tny_simple_list_new ();
973                 tny_folder_change_get_added_headers (change, list);
974
975                 /* Add them to the folder observer */
976                 tny_list_foreach (list, foreach_add_item, 
977                                   derived->new_headers);
978
979                 g_object_unref (G_OBJECT (list));
980         }
981 }
982
983 static void
984 internal_folder_observer_init (InternalFolderObserver *self) 
985 {
986         self->new_headers = tny_simple_list_new ();
987 }
988 static void
989 internal_folder_observer_finalize (GObject *object) 
990 {
991         InternalFolderObserver *self;
992
993         self = (InternalFolderObserver *) object;
994         g_object_unref (self->new_headers);
995
996         G_OBJECT_CLASS (internal_folder_observer_parent_class)->finalize (object);
997 }
998 static void
999 tny_folder_observer_init (TnyFolderObserverIface *iface) 
1000 {
1001         iface->update_func = internal_folder_observer_update;
1002 }
1003 static void
1004 internal_folder_observer_class_init (InternalFolderObserverClass *klass) 
1005 {
1006         GObjectClass *object_class;
1007
1008         internal_folder_observer_parent_class = g_type_class_peek_parent (klass);
1009         object_class = (GObjectClass*) klass;
1010         object_class->finalize = internal_folder_observer_finalize;
1011 }
1012
1013 /*****************/
1014
1015 static void
1016 recurse_folders (TnyFolderStore *store, TnyFolderStoreQuery *query, TnyList *all_folders)
1017 {
1018         TnyIterator *iter;
1019         TnyList *folders = tny_simple_list_new ();
1020
1021         tny_folder_store_get_folders (store, folders, query, NULL);
1022         iter = tny_list_create_iterator (folders);
1023
1024         while (!tny_iterator_is_done (iter)) {
1025
1026                 TnyFolderStore *folder = (TnyFolderStore*) tny_iterator_get_current (iter);
1027                 if (folder) {
1028                         tny_list_prepend (all_folders, G_OBJECT (folder));
1029                         recurse_folders (folder, query, all_folders);    
1030                         g_object_unref (G_OBJECT (folder));
1031                 }
1032
1033                 tny_iterator_next (iter);
1034         }
1035          g_object_unref (G_OBJECT (iter));
1036          g_object_unref (G_OBJECT (folders));
1037 }
1038
1039 /* 
1040  * Issues the "progress-changed" signal. The timer won't be removed,
1041  * so you must call g_source_remove to stop the signal emission
1042  */
1043 static gboolean
1044 idle_notify_progress (gpointer data)
1045 {
1046         ModestMailOperation *mail_op = MODEST_MAIL_OPERATION (data);
1047         ModestMailOperationState *state;
1048
1049         state = modest_mail_operation_clone_state (mail_op);
1050
1051         /* This is a GDK lock because we are an idle callback and
1052          * the handlers of this signal can contain Gtk+ code */
1053
1054         gdk_threads_enter (); /* CHECKED */
1055         g_signal_emit (G_OBJECT (mail_op), signals[PROGRESS_CHANGED_SIGNAL], 0, state, NULL);
1056         gdk_threads_leave (); /* CHECKED */
1057
1058         g_slice_free (ModestMailOperationState, state);
1059         
1060         return TRUE;
1061 }
1062
1063 /* 
1064  * Issues the "progress-changed" signal and removes the timer. It uses
1065  * a lock to ensure that the progress information of the mail
1066  * operation is not modified while there are notifications pending
1067  */
1068 static gboolean
1069 idle_notify_progress_once (gpointer data)
1070 {
1071         ModestPair *pair;
1072
1073         pair = (ModestPair *) data;
1074
1075         /* This is a GDK lock because we are an idle callback and
1076          * the handlers of this signal can contain Gtk+ code */
1077
1078         gdk_threads_enter (); /* CHECKED */
1079         g_signal_emit (G_OBJECT (pair->first), signals[PROGRESS_CHANGED_SIGNAL], 0, pair->second, NULL);
1080         gdk_threads_leave (); /* CHECKED */
1081
1082         /* Free the state and the reference to the mail operation */
1083         g_slice_free (ModestMailOperationState, (ModestMailOperationState*)pair->second);
1084         g_object_unref (pair->first);
1085
1086         return FALSE;
1087 }
1088
1089 /* 
1090  * Used to notify the queue from the main
1091  * loop. We call it inside an idle call to achieve that
1092  */
1093 static gboolean
1094 idle_notify_queue (gpointer data)
1095 {
1096         ModestMailOperation *mail_op = MODEST_MAIL_OPERATION (data);
1097
1098         /* Do not need to block, the notify end will do it for us */    
1099         modest_mail_operation_notify_end (mail_op);
1100         g_object_unref (mail_op);
1101
1102         return FALSE;
1103 }
1104
1105 static int
1106 compare_headers_by_date (gconstpointer a, 
1107                          gconstpointer b)
1108 {
1109         TnyHeader **header1, **header2;
1110         time_t sent1, sent2;
1111
1112         header1 = (TnyHeader **) a;
1113         header2 = (TnyHeader **) b;
1114
1115         sent1 = tny_header_get_date_sent (*header1);
1116         sent2 = tny_header_get_date_sent (*header2);
1117
1118         /* We want the most recent ones (greater time_t) at the
1119            beginning */
1120         if (sent1 < sent2)
1121                 return 1;
1122         else
1123                 return -1;
1124 }
1125
1126 static gboolean 
1127 set_last_updated_idle (gpointer data)
1128 {
1129
1130         /* This is a GDK lock because we are an idle callback and
1131          * modest_account_mgr_set_int can contain Gtk+ code */
1132
1133         gdk_threads_enter (); /* CHECKED - please recheck */
1134
1135         /* It does not matter if the time is not exactly the same than
1136            the time when this idle was called, it's just an
1137            approximation and it won't be very different */
1138
1139         modest_account_mgr_set_int (modest_runtime_get_account_mgr (), 
1140                                     (gchar *) data, 
1141                                     MODEST_ACCOUNT_LAST_UPDATED, 
1142                                     time(NULL), 
1143                                     TRUE);
1144
1145         gdk_threads_leave (); /* CHECKED - please recheck */
1146
1147         return FALSE;
1148 }
1149
1150 static gboolean
1151 idle_update_account_cb (gpointer data)
1152 {
1153         UpdateAccountInfo *idle_info;
1154
1155         idle_info = (UpdateAccountInfo *) data;
1156
1157         /* This is a GDK lock because we are an idle callback and
1158          * idle_info->callback can contain Gtk+ code */
1159
1160         gdk_threads_enter (); /* CHECKED */
1161         idle_info->callback (idle_info->mail_op,
1162                              idle_info->new_headers,
1163                              idle_info->user_data);
1164         gdk_threads_leave (); /* CHECKED */
1165
1166         /* Frees */
1167         g_object_unref (idle_info->mail_op);
1168         g_free (idle_info);
1169
1170         return FALSE;
1171 }
1172
1173
1174 static gpointer
1175 update_account_thread (gpointer thr_user_data)
1176 {
1177         static gboolean first_time = TRUE;
1178         UpdateAccountInfo *info = NULL;
1179         TnyList *all_folders = NULL;
1180         GPtrArray *new_headers = NULL;
1181         TnyIterator *iter = NULL;
1182         TnyFolderStoreQuery *query = NULL;
1183         ModestMailOperationPrivate *priv = NULL;
1184         ModestTnySendQueue *send_queue = NULL;
1185         gint num_new_headers = 0;
1186
1187         info = (UpdateAccountInfo *) thr_user_data;
1188         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(info->mail_op);
1189
1190         /* Get account and set it into mail_operation */
1191         priv->account = g_object_ref (info->account);
1192
1193         /*
1194          * Previousl, we did this for POP3, to do a logout-login upon send/receive, 
1195          * because many POP-servers (like Gmail) do not
1196          * show any updates unless we do that.
1197          * But that didn't work with gmail anyway, 
1198          * and tinymail now takes care of this itself by disconnecting 
1199          * automatically after using the connection.
1200          */
1201         /*
1202         if (!first_time && TNY_IS_CAMEL_POP_STORE_ACCOUNT (priv->account)) 
1203                 tny_camel_pop_store_account_reconnect (TNY_CAMEL_POP_STORE_ACCOUNT(priv->account));
1204         */
1205
1206         /* Get all the folders. We can do it synchronously because
1207            we're already running in a different thread than the UI */
1208         all_folders = tny_simple_list_new ();
1209         query = tny_folder_store_query_new ();
1210         tny_folder_store_query_add_item (query, NULL, TNY_FOLDER_STORE_QUERY_OPTION_SUBSCRIBED);
1211         tny_folder_store_get_folders (TNY_FOLDER_STORE (info->account),
1212                                       all_folders,
1213                                       query,
1214                                       &(priv->error));
1215         if (priv->error) {
1216                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
1217                 goto out;
1218         }
1219
1220         iter = tny_list_create_iterator (all_folders);
1221         while (!tny_iterator_is_done (iter)) {
1222                 TnyFolderStore *folder = TNY_FOLDER_STORE (tny_iterator_get_current (iter));
1223                 if (folder) {
1224                         recurse_folders (folder, query, all_folders);
1225                         g_object_unref (folder);
1226                 }
1227                 tny_iterator_next (iter);
1228         }
1229         g_object_unref (G_OBJECT (iter));
1230
1231         /* Update status and notify. We need to call the notification
1232            with a source function in order to call it from the main
1233            loop. We need that in order not to get into trouble with
1234            Gtk+. We use a timeout in order to provide more status
1235            information, because the sync tinymail call does not
1236            provide it for the moment */
1237         gint timeout = g_timeout_add (100, idle_notify_progress, info->mail_op);
1238
1239         /* Refresh folders */
1240         num_new_headers = 0;
1241         new_headers = g_ptr_array_new ();
1242         iter = tny_list_create_iterator (all_folders);
1243
1244         while (!tny_iterator_is_done (iter) && !priv->error && 
1245                priv->status != MODEST_MAIL_OPERATION_STATUS_CANCELED) {
1246
1247                 InternalFolderObserver *observer;
1248                 TnyFolderStore *folder = TNY_FOLDER_STORE (tny_iterator_get_current (iter));
1249
1250                 /* Refresh the folder */
1251                 /* Our observer receives notification of new emails during folder refreshes,
1252                  * so we can use observer->new_headers.
1253                  */
1254                 observer = g_object_new (internal_folder_observer_get_type (), NULL);
1255                 tny_folder_add_observer (TNY_FOLDER (folder), TNY_FOLDER_OBSERVER (observer));
1256                 
1257                 /* This gets the status information (headers) from the server.
1258                  * We use the blocking version, because we are already in a separate 
1259                  * thread.
1260                  */
1261
1262                 if (!g_ascii_strcasecmp (info->retrieve_type, MODEST_ACCOUNT_RETRIEVE_VALUE_MESSAGES) || 
1263                     !g_ascii_strcasecmp (info->retrieve_type, MODEST_ACCOUNT_RETRIEVE_VALUE_MESSAGES_AND_ATTACHMENTS)) {
1264                         TnyIterator *iter;
1265
1266                         /* If the retrieve type is full messages, refresh and get the messages */
1267                         tny_folder_refresh (TNY_FOLDER (folder), &(priv->error));
1268
1269                         iter = tny_list_create_iterator (observer->new_headers);
1270                         while (!tny_iterator_is_done (iter)) {
1271                                 TnyHeader *header = TNY_HEADER (tny_iterator_get_current (iter));
1272                                  
1273                                 /* Apply per-message size limits */
1274                                 if (tny_header_get_message_size (header) < info->max_size)
1275                                         g_ptr_array_add (new_headers, g_object_ref (header));
1276
1277                                 g_object_unref (header);
1278                                 tny_iterator_next (iter);
1279                         }
1280                         g_object_unref (iter);
1281                 } else {
1282                         /* We do not need to do it the first time
1283                            because it's automatically done by the tree
1284                            model */
1285                         if (G_UNLIKELY (!first_time))
1286                                 tny_folder_poke_status (TNY_FOLDER (folder));
1287                 }
1288                 tny_folder_remove_observer (TNY_FOLDER (folder), TNY_FOLDER_OBSERVER (observer));
1289                 g_object_unref (observer);
1290                 observer = NULL;                        
1291
1292                 if (folder)
1293                         g_object_unref (G_OBJECT (folder));
1294
1295                 if (priv->error)
1296                         priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
1297
1298                 tny_iterator_next (iter);
1299         }
1300
1301         g_object_unref (G_OBJECT (iter));
1302         g_source_remove (timeout);
1303
1304         if (priv->status != MODEST_MAIL_OPERATION_STATUS_CANCELED && 
1305             priv->status != MODEST_MAIL_OPERATION_STATUS_FAILED &&
1306             new_headers->len > 0) {
1307                 gint msg_num = 0;
1308
1309                 /* Order by date */
1310                 g_ptr_array_sort (new_headers, (GCompareFunc) compare_headers_by_date);
1311
1312                 /* Apply message count limit */
1313                 /* If the number of messages exceeds the maximum, ask the
1314                  * user to download them all,
1315                  * as per the UI spec "Retrieval Limits" section in 4.4: 
1316                  */
1317                 if (new_headers->len > info->retrieve_limit) {
1318                         /* TODO: Ask the user, instead of just
1319                          * failing, showing
1320                          * mail_nc_msg_count_limit_exceeded, with 'Get
1321                          * all' and 'Newest only' buttons. */
1322                         g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
1323                              MODEST_MAIL_OPERATION_ERROR_RETRIEVAL_NUMBER_LIMIT,
1324                              "The number of messages to retrieve exceeds the chosen limit for account %s\n", 
1325                              tny_account_get_name (TNY_ACCOUNT (info->transport_account)));
1326                         priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
1327                         goto out;
1328                 }
1329                 
1330                 priv->done = 0;
1331                 priv->total = MIN (new_headers->len, info->retrieve_limit);
1332                 while (msg_num < priv->total) {
1333
1334                         TnyHeader *header = TNY_HEADER (g_ptr_array_index (new_headers, msg_num));
1335                         TnyFolder *folder = tny_header_get_folder (header);
1336                         TnyMsg *msg       = tny_folder_get_msg (folder, header, NULL);
1337                         ModestMailOperationState *state;
1338                         ModestPair* pair;
1339
1340                         priv->done++;
1341                         /* We can not just use the mail operation because the
1342                            values of done and total could change before the
1343                            idle is called */
1344                         state = modest_mail_operation_clone_state (info->mail_op);
1345                         pair = modest_pair_new (g_object_ref (info->mail_op), state, FALSE);
1346                         g_idle_add_full (G_PRIORITY_HIGH_IDLE, idle_notify_progress_once,
1347                                          pair, (GDestroyNotify) modest_pair_free);
1348
1349                         g_object_unref (msg);
1350                         g_object_unref (folder);
1351
1352                         msg_num++;
1353                 }
1354         }
1355
1356         /* Get the number of new headers and free them */
1357         num_new_headers = new_headers->len;
1358         g_ptr_array_foreach (new_headers, (GFunc) g_object_unref, NULL);
1359         g_ptr_array_free (new_headers, FALSE);
1360         
1361         if (priv->status == MODEST_MAIL_OPERATION_STATUS_CANCELED)
1362                 goto out;
1363
1364         /* Perform send (if operation was not cancelled) */
1365         priv->done = 0;
1366         priv->total = 0;
1367         if (priv->account != NULL) 
1368                 g_object_unref (priv->account);
1369         priv->account = g_object_ref (info->transport_account);
1370         
1371         send_queue = modest_runtime_get_send_queue (info->transport_account);
1372         if (send_queue) {
1373                 modest_tny_send_queue_try_to_send (send_queue);
1374         } else {
1375                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
1376                              MODEST_MAIL_OPERATION_ERROR_INSTANCE_CREATION_FAILED,
1377                              "cannot create a send queue for %s\n", 
1378                              tny_account_get_name (TNY_ACCOUNT (info->transport_account)));
1379                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
1380         }
1381         
1382         /* Check if the operation was a success */
1383         if (!priv->error) {
1384                 priv->status = MODEST_MAIL_OPERATION_STATUS_SUCCESS;
1385
1386                 /* Update the last updated key */
1387                 g_idle_add_full (G_PRIORITY_HIGH_IDLE, 
1388                                  set_last_updated_idle, 
1389                                  g_strdup (tny_account_get_id (TNY_ACCOUNT (info->account))),
1390                                  (GDestroyNotify) g_free);
1391         }
1392
1393  out:
1394
1395         if (info->callback) {
1396                 UpdateAccountInfo *idle_info;
1397
1398                 /* This thread is not in the main lock */
1399                 idle_info = g_malloc0 (sizeof (UpdateAccountInfo));
1400                 idle_info->mail_op = g_object_ref (info->mail_op);
1401                 idle_info->new_headers = num_new_headers;
1402                 idle_info->callback = info->callback;
1403                 g_idle_add (idle_update_account_cb, idle_info);
1404         }
1405
1406         /* Notify about operation end. Note that the info could be
1407            freed before this idle happens, but the mail operation will
1408            be still alive */
1409         g_idle_add (idle_notify_queue, g_object_ref (info->mail_op));
1410
1411         /* Frees */
1412         g_object_unref (query);
1413         g_object_unref (all_folders);
1414         g_object_unref (info->account);
1415         g_object_unref (info->transport_account);
1416         g_free (info->retrieve_type);
1417         g_slice_free (UpdateAccountInfo, info);
1418
1419         first_time = FALSE;
1420
1421         return NULL;
1422 }
1423
1424 gboolean
1425 modest_mail_operation_update_account (ModestMailOperation *self,
1426                                       const gchar *account_name,
1427                                       UpdateAccountCallback callback,
1428                                       gpointer user_data)
1429 {
1430         GThread *thread = NULL;
1431         UpdateAccountInfo *info = NULL;
1432         ModestMailOperationPrivate *priv = NULL;
1433         ModestAccountMgr *mgr = NULL;
1434         TnyStoreAccount *store_account = NULL;
1435         TnyTransportAccount *transport_account = NULL;
1436
1437         g_return_val_if_fail (MODEST_IS_MAIL_OPERATION (self), FALSE);
1438         g_return_val_if_fail (account_name, FALSE);
1439
1440         /* Init mail operation. Set total and done to 0, and do not
1441            update them, this way the progress objects will know that
1442            we have no clue about the number of the objects */
1443         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
1444         priv->total = 0;
1445         priv->done  = 0;
1446         priv->status = MODEST_MAIL_OPERATION_STATUS_IN_PROGRESS;
1447
1448         /* Get the Modest account */
1449         store_account = (TnyStoreAccount *)
1450                 modest_tny_account_store_get_server_account (modest_runtime_get_account_store (),
1451                                                                      account_name,
1452                                                                      TNY_ACCOUNT_TYPE_STORE);
1453                                                                      
1454         /* Make sure that we have a connection, and request one 
1455          * if necessary:
1456          * TODO: Is there some way to trigger this for every attempt to 
1457          * use the network? */
1458         if (!modest_platform_connect_and_wait (NULL, TNY_ACCOUNT (store_account)))
1459                 goto error;
1460
1461         if (!store_account) {
1462                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
1463                              MODEST_MAIL_OPERATION_ERROR_ITEM_NOT_FOUND,
1464                              "cannot get tny store account for %s\n", account_name);
1465                 goto error;
1466         }
1467
1468         
1469         /* Get the transport account, we can not do it in the thread
1470            due to some problems with dbus */
1471         transport_account = (TnyTransportAccount *)
1472                 modest_tny_account_store_get_transport_account_for_open_connection (modest_runtime_get_account_store(),
1473                                                                                     account_name);
1474         if (!transport_account) {
1475                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
1476                              MODEST_MAIL_OPERATION_ERROR_ITEM_NOT_FOUND,
1477                              "cannot get tny transport account for %s\n", account_name);
1478                 goto error;
1479         }
1480
1481         /* Create the helper object */
1482         info = g_slice_new (UpdateAccountInfo);
1483         info->mail_op = self;
1484         info->account = store_account;
1485         info->transport_account = transport_account;
1486         info->callback = callback;
1487         info->user_data = user_data;
1488
1489         /* Get the message size limit */
1490         info->max_size  = modest_conf_get_int (modest_runtime_get_conf (), 
1491                                                MODEST_CONF_MSG_SIZE_LIMIT, NULL);
1492         if (info->max_size == 0)
1493                 info->max_size = G_MAXINT;
1494         else
1495                 info->max_size = info->max_size * KB;
1496
1497         /* Get per-account retrieval type */
1498         mgr = modest_runtime_get_account_mgr ();
1499         info->retrieve_type = modest_account_mgr_get_string (mgr, account_name, 
1500                                                              MODEST_ACCOUNT_RETRIEVE, FALSE);
1501
1502         /* Get per-account message amount retrieval limit */
1503         info->retrieve_limit = modest_account_mgr_get_int (mgr, account_name, 
1504                                                            MODEST_ACCOUNT_LIMIT_RETRIEVE, FALSE);
1505         if (info->retrieve_limit == 0)
1506                 info->retrieve_limit = G_MAXINT;
1507                 
1508         /* printf ("DEBUG: %s: info->retrieve_limit = %d\n", __FUNCTION__, info->retrieve_limit); */
1509
1510         /* Set account busy */
1511         modest_account_mgr_set_account_busy(mgr, account_name, TRUE);
1512         priv->account_name = g_strdup(account_name);
1513         
1514         thread = g_thread_create (update_account_thread, info, FALSE, NULL);
1515
1516         return TRUE;
1517
1518  error:
1519         priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
1520         if (callback) 
1521                 callback (self, 0, user_data);
1522         modest_mail_operation_notify_end (self);
1523         return FALSE;
1524 }
1525
1526 /* ******************************************************************* */
1527 /* ************************** STORE  ACTIONS ************************* */
1528 /* ******************************************************************* */
1529
1530
1531 TnyFolder *
1532 modest_mail_operation_create_folder (ModestMailOperation *self,
1533                                      TnyFolderStore *parent,
1534                                      const gchar *name)
1535 {
1536         ModestMailOperationPrivate *priv;
1537         TnyFolder *new_folder = NULL;
1538
1539         TnyList *list = tny_simple_list_new ();
1540         TnyFolderStoreQuery *query = tny_folder_store_query_new ();
1541
1542         g_return_val_if_fail (TNY_IS_FOLDER_STORE (parent), NULL);
1543         g_return_val_if_fail (name, NULL);
1544         
1545         priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
1546
1547         /* Check for already existing folder */
1548         tny_folder_store_query_add_item (query, name, TNY_FOLDER_STORE_QUERY_OPTION_MATCH_ON_NAME);
1549         tny_folder_store_get_folders (parent, list, query, NULL);
1550         g_object_unref (G_OBJECT (query));
1551
1552         if (tny_list_get_length (list) > 0) {
1553                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
1554                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
1555                              MODEST_MAIL_OPERATION_ERROR_FOLDER_EXISTS,
1556                              _CS("ckdg_ib_folder_already_exists"));
1557         }
1558
1559         g_object_unref (G_OBJECT (list));
1560
1561         /* Check parent */
1562         if (TNY_IS_FOLDER (parent)) {
1563                 /* Check folder rules */
1564                 ModestTnyFolderRules rules = modest_tny_folder_get_rules (TNY_FOLDER (parent));
1565                 if (rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE) {
1566                         /* Set status failed and set an error */
1567                         priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
1568                         g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
1569                                      MODEST_MAIL_OPERATION_ERROR_FOLDER_RULES,
1570                                      _("mail_in_ui_folder_create_error"));
1571                 }
1572         }
1573
1574         if (!strcmp (name, " ") || strchr (name, '/')) {
1575                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
1576                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
1577                              MODEST_MAIL_OPERATION_ERROR_FOLDER_RULES,
1578                              _("mail_in_ui_folder_create_error"));
1579         }
1580
1581         if (!priv->error) {
1582                 /* Create the folder */
1583                 new_folder = tny_folder_store_create_folder (parent, name, &(priv->error));
1584                 CHECK_EXCEPTION (priv, MODEST_MAIL_OPERATION_STATUS_FAILED);
1585                 if (!priv->error)
1586                         priv->status = MODEST_MAIL_OPERATION_STATUS_SUCCESS;
1587         }
1588
1589         /* Notify about operation end */
1590         modest_mail_operation_notify_end (self);
1591
1592         return new_folder;
1593 }
1594
1595 void
1596 modest_mail_operation_remove_folder (ModestMailOperation *self,
1597                                      TnyFolder           *folder,
1598                                      gboolean             remove_to_trash)
1599 {
1600         TnyAccount *account;
1601         ModestMailOperationPrivate *priv;
1602         ModestTnyFolderRules rules;
1603
1604         g_return_if_fail (MODEST_IS_MAIL_OPERATION (self));
1605         g_return_if_fail (TNY_IS_FOLDER (folder));
1606         
1607         priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
1608         
1609         /* Check folder rules */
1610         rules = modest_tny_folder_get_rules (TNY_FOLDER (folder));
1611         if (rules & MODEST_FOLDER_RULES_FOLDER_NON_DELETABLE) {
1612                 /* Set status failed and set an error */
1613                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
1614                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
1615                              MODEST_MAIL_OPERATION_ERROR_FOLDER_RULES,
1616                              _("mail_in_ui_folder_delete_error"));
1617                 goto end;
1618         }
1619
1620         /* Get the account */
1621         account = modest_tny_folder_get_account (folder);
1622         priv->account = g_object_ref(account);
1623
1624         /* Delete folder or move to trash */
1625         if (remove_to_trash) {
1626                 TnyFolder *trash_folder = NULL;
1627                 trash_folder = modest_tny_account_get_special_folder (account,
1628                                                                       TNY_FOLDER_TYPE_TRASH);
1629                 /* TODO: error_handling */
1630                 if (trash_folder) {
1631                         modest_mail_operation_xfer_folder (self, folder,
1632                                                     TNY_FOLDER_STORE (trash_folder), 
1633                                                     TRUE, NULL, NULL);
1634                         g_object_unref (trash_folder);
1635                 }
1636         } else {
1637                 TnyFolderStore *parent = tny_folder_get_folder_store (folder);
1638
1639                 tny_folder_store_remove_folder (parent, folder, &(priv->error));
1640                 CHECK_EXCEPTION (priv, MODEST_MAIL_OPERATION_STATUS_FAILED);
1641
1642                 if (parent)
1643                         g_object_unref (G_OBJECT (parent));
1644         }
1645         g_object_unref (G_OBJECT (account));
1646
1647  end:
1648         /* Notify about operation end */
1649         modest_mail_operation_notify_end (self);
1650 }
1651
1652 static void
1653 transfer_folder_status_cb (GObject *obj,
1654                            TnyStatus *status,
1655                            gpointer user_data)
1656 {
1657         ModestMailOperation *self;
1658         ModestMailOperationPrivate *priv;
1659         ModestMailOperationState *state;
1660         XFerMsgAsyncHelper *helper;
1661
1662         g_return_if_fail (status != NULL);
1663         g_return_if_fail (status->code == TNY_FOLDER_STATUS_CODE_COPY_FOLDER);
1664
1665         helper = (XFerMsgAsyncHelper *) user_data;
1666         g_return_if_fail (helper != NULL);
1667
1668         self = helper->mail_op;
1669         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
1670
1671         priv->done = status->position;
1672         priv->total = status->of_total;
1673
1674         state = modest_mail_operation_clone_state (self);
1675
1676         /* This is not a GDK lock because we are a Tinymail callback
1677          * which is already GDK locked by Tinymail */
1678
1679         /* no gdk_threads_enter (), CHECKED */
1680
1681         g_signal_emit (G_OBJECT (self), signals[PROGRESS_CHANGED_SIGNAL], 0, state, NULL); 
1682
1683         /* no gdk_threads_leave (), CHECKED */
1684
1685         g_slice_free (ModestMailOperationState, state);
1686 }
1687
1688
1689 static void
1690 transfer_folder_cb (TnyFolder *folder, gboolean cancelled, 
1691                     TnyFolderStore *into, 
1692                     TnyFolder *new_folder, 
1693                     GError *err, 
1694                     gpointer user_data)
1695 {
1696         XFerMsgAsyncHelper *helper;
1697         ModestMailOperation *self = NULL;
1698         ModestMailOperationPrivate *priv = NULL;
1699
1700         helper = (XFerMsgAsyncHelper *) user_data;
1701         g_return_if_fail (helper != NULL);       
1702
1703         self = helper->mail_op;
1704         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
1705
1706         if (err) {
1707                 priv->error = g_error_copy (err);
1708                 priv->done = 0;
1709                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
1710         } else if (cancelled) {
1711                 priv->status = MODEST_MAIL_OPERATION_STATUS_CANCELED;
1712                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
1713                              MODEST_MAIL_OPERATION_ERROR_OPERATION_CANCELED,
1714                              _("Transference of %s was cancelled."),
1715                              tny_folder_get_name (folder));
1716         } else {
1717                 priv->done = 1;
1718                 priv->status = MODEST_MAIL_OPERATION_STATUS_SUCCESS;
1719         }
1720                 
1721         /* Notify about operation end */
1722         modest_mail_operation_notify_end (self);
1723
1724         /* If user defined callback function was defined, call it */
1725         if (helper->user_callback) {
1726
1727                 /* This is not a GDK lock because we are a Tinymail callback
1728                  * which is already GDK locked by Tinymail */
1729
1730                 /* no gdk_threads_enter (), CHECKED */
1731                 helper->user_callback (priv->source, helper->user_data);
1732                 /* no gdk_threads_leave () , CHECKED */
1733         }
1734
1735         /* Free */
1736         g_object_unref (helper->mail_op);
1737         g_slice_free   (XFerMsgAsyncHelper, helper);
1738 }
1739
1740 /**
1741  *
1742  * This function checks if the new name is a valid name for our local
1743  * folders account. The new name could not be the same than then name
1744  * of any of the mandatory local folders
1745  *
1746  * We can not rely on tinymail because tinymail does not check the
1747  * name of the virtual folders that the account could have in the case
1748  * that we're doing a rename (because it directly calls Camel which
1749  * knows nothing about our virtual folders). 
1750  *
1751  * In the case of an actual copy/move (i.e. move/copy a folder between
1752  * accounts) tinymail uses the tny_folder_store_create_account which
1753  * is reimplemented by our ModestTnyLocalFoldersAccount that indeed
1754  * checks the new name of the folder, so this call in that case
1755  * wouldn't be needed. *But* NOTE that if tinymail changes its
1756  * implementation (if folder transfers within the same account is no
1757  * longer implemented as a rename) this call will allow Modest to work
1758  * perfectly
1759  *
1760  * If the new name is not valid, this function will set the status to
1761  * failed and will set also an error in the mail operation
1762  */
1763 static gboolean
1764 new_name_valid_if_local_account (ModestMailOperationPrivate *priv,
1765                                  TnyFolderStore *into,
1766                                  const gchar *new_name)
1767 {
1768         if (TNY_IS_ACCOUNT (into) && 
1769             modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (into)) &&
1770             modest_tny_local_folders_account_folder_name_in_use (MODEST_TNY_LOCAL_FOLDERS_ACCOUNT (into),
1771                                                                  new_name)) {
1772                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
1773                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
1774                              MODEST_MAIL_OPERATION_ERROR_FOLDER_RULES,
1775                              _("FIXME: folder name already in use"));
1776                 return FALSE;
1777         } else
1778                 return TRUE;
1779 }
1780
1781 void
1782 modest_mail_operation_xfer_folder (ModestMailOperation *self,
1783                                    TnyFolder *folder,
1784                                    TnyFolderStore *parent,
1785                                    gboolean delete_original,
1786                                    XferMsgsAsynUserCallback user_callback,
1787                                    gpointer user_data)
1788 {
1789         ModestMailOperationPrivate *priv = NULL;
1790         ModestTnyFolderRules parent_rules = 0, rules; 
1791         XFerMsgAsyncHelper *helper = NULL;
1792
1793         g_return_if_fail (MODEST_IS_MAIL_OPERATION (self));
1794         g_return_if_fail (TNY_IS_FOLDER (folder));
1795
1796         priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
1797
1798         /* Get account and set it into mail_operation */
1799         priv->account = modest_tny_folder_get_account (TNY_FOLDER(folder));
1800         priv->status = MODEST_MAIL_OPERATION_STATUS_IN_PROGRESS;
1801
1802         /* Get folder rules */
1803         rules = modest_tny_folder_get_rules (TNY_FOLDER (folder));
1804         if (TNY_IS_FOLDER (parent))
1805                 parent_rules = modest_tny_folder_get_rules (TNY_FOLDER (parent));
1806         
1807         /* The moveable restriction is applied also to copy operation */
1808         if ((gpointer) parent == (gpointer) folder ||
1809             (!TNY_IS_FOLDER_STORE (parent)) || 
1810             (rules & MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE)) {
1811                 printf("DEBUG: %s: Not allowing the move.\n", __FUNCTION__);
1812                 /* Set status failed and set an error */
1813                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
1814                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
1815                              MODEST_MAIL_OPERATION_ERROR_FOLDER_RULES,
1816                              _("mail_in_ui_folder_move_target_error"));
1817
1818                 /* Notify the queue */
1819                 modest_mail_operation_notify_end (self);
1820         } else if (TNY_IS_FOLDER (parent) && 
1821                    (parent_rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE)) {
1822                 /* Set status failed and set an error */
1823                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
1824                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
1825                              MODEST_MAIL_OPERATION_ERROR_FOLDER_RULES,
1826                              _("FIXME: parent folder does not accept new folders"));
1827
1828                 /* Notify the queue */
1829                 modest_mail_operation_notify_end (self);
1830         } else {
1831
1832
1833                 /* Check that the new folder name is not used by any
1834                    special local folder */
1835                 if (new_name_valid_if_local_account (priv, parent, 
1836                                                      tny_folder_get_name (folder))) {
1837                         /* Create the helper */
1838                         helper = g_slice_new0 (XFerMsgAsyncHelper);
1839                         helper->mail_op = g_object_ref(self);
1840                         helper->dest_folder = NULL;
1841                         helper->headers = NULL;
1842                         helper->user_callback = user_callback;
1843                         helper->user_data = user_data;
1844                         
1845                         /* Move/Copy folder */          
1846                         tny_folder_copy_async (folder,
1847                                                parent,
1848                                                tny_folder_get_name (folder),
1849                                                delete_original,
1850                                                transfer_folder_cb,
1851                                                transfer_folder_status_cb,
1852                                                helper);
1853                 } else {
1854                         modest_mail_operation_notify_end (self);
1855                 }
1856         }
1857 }
1858
1859 void
1860 modest_mail_operation_rename_folder (ModestMailOperation *self,
1861                                      TnyFolder *folder,
1862                                      const gchar *name)
1863 {
1864         ModestMailOperationPrivate *priv;
1865         ModestTnyFolderRules rules;
1866         XFerMsgAsyncHelper *helper;
1867
1868         g_return_if_fail (MODEST_IS_MAIL_OPERATION (self));
1869         g_return_if_fail (TNY_IS_FOLDER_STORE (folder));
1870         g_return_if_fail (name);
1871         
1872         priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
1873
1874         /* Get account and set it into mail_operation */
1875         priv->account = modest_tny_folder_get_account (TNY_FOLDER(folder));
1876
1877         /* Check folder rules */
1878         rules = modest_tny_folder_get_rules (TNY_FOLDER (folder));
1879         if (rules & MODEST_FOLDER_RULES_FOLDER_NON_RENAMEABLE) {
1880                 /* Set status failed and set an error */
1881                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
1882                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
1883                              MODEST_MAIL_OPERATION_ERROR_FOLDER_RULES,
1884                              _("FIXME: unable to rename"));
1885
1886                 /* Notify about operation end */
1887                 modest_mail_operation_notify_end (self);
1888         } else if (!strcmp (name, " ") || strchr (name, '/')) {
1889                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
1890                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
1891                              MODEST_MAIL_OPERATION_ERROR_FOLDER_RULES,
1892                              _("FIXME: unable to rename"));
1893                 /* Notify about operation end */
1894                 modest_mail_operation_notify_end (self);
1895         } else {
1896                 TnyFolderStore *into;
1897
1898                 into = tny_folder_get_folder_store (folder);    
1899
1900                 /* Check that the new folder name is not used by any
1901                    special local folder */
1902                 if (new_name_valid_if_local_account (priv, into, name)) {
1903                         /* Create the helper */
1904                         helper = g_slice_new0 (XFerMsgAsyncHelper);
1905                         helper->mail_op = g_object_ref(self);
1906                         helper->dest_folder = NULL;
1907                         helper->headers = NULL;
1908                         helper->user_callback = NULL;
1909                         helper->user_data = NULL;
1910                 
1911                         /* Rename. Camel handles folder subscription/unsubscription */
1912                         tny_folder_copy_async (folder, into, name, TRUE,
1913                                                transfer_folder_cb,
1914                                                transfer_folder_status_cb,
1915                                                helper);
1916                 } else {
1917                         modest_mail_operation_notify_end (self);
1918                 }
1919                 g_object_unref (into);
1920         }
1921 }
1922
1923 /* ******************************************************************* */
1924 /* **************************  MSG  ACTIONS  ************************* */
1925 /* ******************************************************************* */
1926
1927 void modest_mail_operation_get_msg (ModestMailOperation *self,
1928                                     TnyHeader *header,
1929                                     GetMsgAsyncUserCallback user_callback,
1930                                     gpointer user_data)
1931 {
1932         GetMsgAsyncHelper *helper = NULL;
1933         TnyFolder *folder;
1934         ModestMailOperationPrivate *priv;
1935         
1936         g_return_if_fail (MODEST_IS_MAIL_OPERATION (self));
1937         g_return_if_fail (TNY_IS_HEADER (header));
1938         
1939         priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
1940         folder = tny_header_get_folder (header);
1941
1942         priv->status = MODEST_MAIL_OPERATION_STATUS_IN_PROGRESS;
1943
1944         /* Get message from folder */
1945         if (folder) {
1946                 /* Get account and set it into mail_operation */
1947                 priv->account = modest_tny_folder_get_account (TNY_FOLDER(folder));
1948                 
1949                 /* Check for cached messages */
1950                 if (tny_header_get_flags (header) & TNY_HEADER_FLAG_CACHED)
1951                         priv->op_type = MODEST_MAIL_OPERATION_TYPE_OPEN;
1952                 else 
1953                         priv->op_type = MODEST_MAIL_OPERATION_TYPE_RECEIVE;
1954
1955                 helper = g_slice_new0 (GetMsgAsyncHelper);
1956                 helper->mail_op = self;
1957                 helper->user_callback = user_callback;
1958                 helper->user_data = user_data;
1959                 helper->header = g_object_ref (header);
1960
1961                 // The callback's reference so that the mail op is not
1962                 // finalized until the async operation is completed even if
1963                 // the user canceled the request meanwhile.
1964                 g_object_ref (G_OBJECT (helper->mail_op));
1965
1966                 tny_folder_get_msg_async (folder, header, get_msg_cb, get_msg_status_cb, helper);
1967
1968                 g_object_unref (G_OBJECT (folder));
1969         } else {
1970                 /* Set status failed and set an error */
1971                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
1972                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
1973                              MODEST_MAIL_OPERATION_ERROR_ITEM_NOT_FOUND,
1974                              _("Error trying to get a message. No folder found for header"));
1975
1976                 /* Notify the queue */
1977                 modest_mail_operation_notify_end (self);
1978         }
1979 }
1980
1981 static void
1982 get_msg_cb (TnyFolder *folder, 
1983             gboolean cancelled, 
1984             TnyMsg *msg, 
1985             GError *error, 
1986             gpointer user_data)
1987 {
1988         GetMsgAsyncHelper *helper = NULL;
1989         ModestMailOperation *self = NULL;
1990         ModestMailOperationPrivate *priv = NULL;
1991
1992         helper = (GetMsgAsyncHelper *) user_data;
1993         g_return_if_fail (helper != NULL);       
1994         self = helper->mail_op;
1995         g_return_if_fail (MODEST_IS_MAIL_OPERATION(self));
1996         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
1997
1998         /* Check errors and cancel */
1999         if (error) {
2000                 priv->error = g_error_copy (error);
2001                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
2002         } else if (cancelled) {
2003                 priv->status = MODEST_MAIL_OPERATION_STATUS_CANCELED;
2004                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
2005                              MODEST_MAIL_OPERATION_ERROR_ITEM_NOT_FOUND,
2006                              _("Error trying to refresh the contents of %s"),
2007                              tny_folder_get_name (folder));
2008         } else {
2009                 priv->status = MODEST_MAIL_OPERATION_STATUS_SUCCESS;
2010         }
2011
2012         /* If user defined callback function was defined, call it even
2013            if the operation failed*/
2014         if (helper->user_callback) {
2015                 /* This is not a GDK lock because we are a Tinymail callback
2016                  * which is already GDK locked by Tinymail */
2017
2018                 /* no gdk_threads_enter (), CHECKED */
2019                 helper->user_callback (self, helper->header, msg, helper->user_data);
2020                 /* no gdk_threads_leave (), CHECKED */
2021         }
2022
2023         /* Notify about operation end */
2024         modest_mail_operation_notify_end (self);
2025         /* Free */
2026         g_object_unref (helper->mail_op);
2027         g_object_unref (helper->header);
2028         g_slice_free (GetMsgAsyncHelper, helper);
2029                 
2030 }
2031
2032 static void     
2033 get_msg_status_cb (GObject *obj,
2034                    TnyStatus *status,  
2035                    gpointer user_data)
2036 {
2037         GetMsgAsyncHelper *helper = NULL;
2038         ModestMailOperation *self;
2039         ModestMailOperationPrivate *priv;
2040         ModestMailOperationState *state;
2041
2042         g_return_if_fail (status != NULL);
2043         g_return_if_fail (status->code == TNY_FOLDER_STATUS_CODE_GET_MSG);
2044
2045         helper = (GetMsgAsyncHelper *) user_data;
2046         g_return_if_fail (helper != NULL);       
2047
2048         self = helper->mail_op;
2049         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
2050
2051         priv->done = 1;
2052         priv->total = 1;
2053
2054         state = modest_mail_operation_clone_state (self);
2055         state->bytes_done = status->position;
2056         state->bytes_total = status->of_total;
2057
2058         /* This is not a GDK lock because we are a Tinymail callback
2059          * which is already GDK locked by Tinymail */
2060
2061         /* no gdk_threads_enter (), CHECKED */
2062         g_signal_emit (G_OBJECT (self), signals[PROGRESS_CHANGED_SIGNAL], 0, state, NULL);
2063         /* no gdk_threads_leave (), CHECKED */
2064
2065         g_slice_free (ModestMailOperationState, state);
2066 }
2067
2068 /****************************************************/
2069 typedef struct {
2070         ModestMailOperation *mail_op;
2071         TnyList *headers;
2072         GetMsgAsyncUserCallback user_callback;
2073         gpointer user_data;
2074         GDestroyNotify notify;
2075 } GetFullMsgsInfo;
2076
2077 typedef struct {
2078         GetMsgAsyncUserCallback user_callback;
2079         TnyHeader *header;
2080         TnyMsg *msg;
2081         gpointer user_data;
2082         ModestMailOperation *mail_op;
2083 } NotifyGetMsgsInfo;
2084
2085
2086 /* 
2087  * Used by get_msgs_full_thread to call the user_callback for each
2088  * message that has been read
2089  */
2090 static gboolean
2091 notify_get_msgs_full (gpointer data)
2092 {
2093         NotifyGetMsgsInfo *info;
2094
2095         info = (NotifyGetMsgsInfo *) data;      
2096
2097         /* This is a GDK lock because we are an idle callback and
2098          * because info->user_callback can contain Gtk+ code */
2099
2100         gdk_threads_enter (); /* CHECKED */
2101         info->user_callback (info->mail_op, info->header, info->msg, info->user_data);
2102         gdk_threads_leave (); /* CHECKED */
2103
2104         g_slice_free (NotifyGetMsgsInfo, info);
2105
2106         return FALSE;
2107 }
2108
2109 /* 
2110  * Used by get_msgs_full_thread to free al the thread resources and to
2111  * call the destroy function for the passed user_data
2112  */
2113 static gboolean
2114 get_msgs_full_destroyer (gpointer data)
2115 {
2116         GetFullMsgsInfo *info;
2117
2118         info = (GetFullMsgsInfo *) data;
2119
2120         if (info->notify) {
2121
2122                 /* This is a GDK lock because we are an idle callback and
2123                  * because info->notify can contain Gtk+ code */
2124
2125                 gdk_threads_enter (); /* CHECKED */
2126                 info->notify (info->user_data);
2127                 gdk_threads_leave (); /* CHECKED */
2128         }
2129
2130         /* free */
2131         g_object_unref (info->headers);
2132         g_slice_free (GetFullMsgsInfo, info);
2133
2134         return FALSE;
2135 }
2136
2137 static gpointer
2138 get_msgs_full_thread (gpointer thr_user_data)
2139 {
2140         GetFullMsgsInfo *info;
2141         ModestMailOperationPrivate *priv = NULL;
2142         TnyIterator *iter = NULL;
2143         
2144         info = (GetFullMsgsInfo *) thr_user_data;       
2145         priv = MODEST_MAIL_OPERATION_GET_PRIVATE (info->mail_op);
2146
2147         iter = tny_list_create_iterator (info->headers);
2148         while (!tny_iterator_is_done (iter)) { 
2149                 TnyHeader *header;
2150                 TnyFolder *folder;
2151                 
2152                 header = TNY_HEADER (tny_iterator_get_current (iter));
2153                 folder = tny_header_get_folder (header);
2154                                 
2155                 /* Check for cached messages */
2156                 if (tny_header_get_flags (header) & TNY_HEADER_FLAG_CACHED)
2157                         priv->op_type = MODEST_MAIL_OPERATION_TYPE_OPEN;
2158                 else 
2159                         priv->op_type = MODEST_MAIL_OPERATION_TYPE_RECEIVE;
2160
2161                 /* Get message from folder */
2162                 if (folder) {
2163                         TnyMsg *msg;
2164                         /* The callback will call it per each header */
2165                         msg = tny_folder_get_msg (folder, header, &(priv->error));
2166
2167                         if (msg) {
2168                                 ModestMailOperationState *state;
2169                                 ModestPair *pair;
2170
2171                                 priv->done++;
2172
2173                                 /* notify progress */
2174                                 state = modest_mail_operation_clone_state (info->mail_op);
2175                                 pair = modest_pair_new (g_object_ref (info->mail_op), state, FALSE);
2176                                 g_idle_add_full (G_PRIORITY_HIGH_IDLE, idle_notify_progress_once,
2177                                                  pair, (GDestroyNotify) modest_pair_free);
2178
2179                                 /* The callback is the responsible for
2180                                    freeing the message */
2181                                 if (info->user_callback) {
2182                                         NotifyGetMsgsInfo *info_notify;
2183                                         info_notify = g_slice_new0 (NotifyGetMsgsInfo);
2184                                         info_notify->user_callback = info->user_callback;
2185                                         info_notify->mail_op = info->mail_op;
2186                                         info_notify->header = g_object_ref (header);
2187                                         info_notify->msg = g_object_ref (msg);
2188                                         info_notify->user_data = info->user_data;
2189                                         g_idle_add_full (G_PRIORITY_HIGH_IDLE,
2190                                                          notify_get_msgs_full, 
2191                                                          info_notify, NULL);
2192                                 }
2193                                 g_object_unref (msg);
2194                         } 
2195                 } else {
2196                         /* Set status failed and set an error */
2197                         priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
2198                         g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
2199                                      MODEST_MAIL_OPERATION_ERROR_ITEM_NOT_FOUND,
2200                                      "Error trying to get a message. No folder found for header");
2201                 }
2202
2203                 if (header)
2204                         g_object_unref (header);
2205                 
2206                 tny_iterator_next (iter);
2207         }
2208
2209         /* Set operation status */
2210         if (priv->status == MODEST_MAIL_OPERATION_STATUS_IN_PROGRESS)
2211                 priv->status = MODEST_MAIL_OPERATION_STATUS_SUCCESS;
2212
2213         /* Notify about operation end */
2214         g_idle_add (idle_notify_queue, g_object_ref (info->mail_op));
2215
2216         /* Free thread resources. Will be called after all previous idles */
2217         g_idle_add_full (G_PRIORITY_DEFAULT_IDLE + 1, get_msgs_full_destroyer, info, NULL);
2218
2219         return NULL;
2220 }
2221
2222 void 
2223 modest_mail_operation_get_msgs_full (ModestMailOperation *self,
2224                                      TnyList *header_list, 
2225                                      GetMsgAsyncUserCallback user_callback,
2226                                      gpointer user_data,
2227                                      GDestroyNotify notify)
2228 {
2229         TnyHeader *header = NULL;
2230         TnyFolder *folder = NULL;
2231         GThread *thread;
2232         ModestMailOperationPrivate *priv = NULL;
2233         GetFullMsgsInfo *info = NULL;
2234         gboolean size_ok = TRUE;
2235         gint max_size;
2236         TnyIterator *iter = NULL;
2237         
2238         g_return_if_fail (MODEST_IS_MAIL_OPERATION (self));
2239         
2240         /* Init mail operation */
2241         priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
2242         priv->status = MODEST_MAIL_OPERATION_STATUS_IN_PROGRESS;
2243         priv->done = 0;
2244         priv->total = tny_list_get_length(header_list);
2245
2246         /* Get account and set it into mail_operation */
2247         if (tny_list_get_length (header_list) >= 1) {
2248                 iter = tny_list_create_iterator (header_list);
2249                 header = TNY_HEADER (tny_iterator_get_current (iter));
2250                 if (header) {
2251                         folder = tny_header_get_folder (header);
2252                         if (folder) {           
2253                                 priv->account = modest_tny_folder_get_account (TNY_FOLDER(folder));
2254
2255                                 g_object_unref (folder);
2256                         }
2257
2258                         g_object_unref (header);
2259                 }
2260
2261                 if (tny_list_get_length (header_list) == 1) {
2262                         g_object_unref (iter);
2263                         iter = NULL;
2264                 }
2265         }
2266
2267         /* Get msg size limit */
2268         max_size  = modest_conf_get_int (modest_runtime_get_conf (), 
2269                                          MODEST_CONF_MSG_SIZE_LIMIT, 
2270                                          &(priv->error));
2271         if (priv->error) {
2272                 g_clear_error (&(priv->error));
2273                 max_size = G_MAXINT;
2274         } else {
2275                 max_size = max_size * KB;
2276         }
2277
2278         /* Check message size limits. If there is only one message
2279            always retrieve it */
2280         if (iter != NULL) {
2281                 while (!tny_iterator_is_done (iter) && size_ok) {
2282                         header = TNY_HEADER (tny_iterator_get_current (iter));
2283                         if (header) {
2284                                 if (tny_header_get_message_size (header) >= max_size)
2285                                         size_ok = FALSE;
2286                                 g_object_unref (header);
2287                         }
2288
2289                         tny_iterator_next (iter);
2290                 }
2291                 g_object_unref (iter);
2292         }
2293
2294         if (size_ok) {
2295                 /* Create the info */
2296                 info = g_slice_new0 (GetFullMsgsInfo);
2297                 info->mail_op = self;
2298                 info->user_callback = user_callback;
2299                 info->user_data = user_data;
2300                 info->headers = g_object_ref (header_list);
2301                 info->notify = notify;
2302
2303                 thread = g_thread_create (get_msgs_full_thread, info, FALSE, NULL);
2304         } else {
2305                 /* Set status failed and set an error */
2306                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
2307                 /* FIXME: the error msg is different for pop */
2308                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
2309                              MODEST_MAIL_OPERATION_ERROR_MESSAGE_SIZE_LIMIT,
2310                              _("emev_ni_ui_imap_msg_size_exceed_error"));
2311                 /* Remove from queue and free resources */
2312                 modest_mail_operation_notify_end (self);
2313                 if (notify)
2314                         notify (user_data);
2315         }
2316 }
2317
2318
2319 void 
2320 modest_mail_operation_remove_msg (ModestMailOperation *self,  TnyHeader *header,
2321                                   gboolean remove_to_trash /*ignored*/)
2322 {
2323         TnyFolder *folder;
2324         ModestMailOperationPrivate *priv;
2325
2326         g_return_if_fail (MODEST_IS_MAIL_OPERATION (self));
2327         g_return_if_fail (TNY_IS_HEADER (header));
2328
2329         if (remove_to_trash)
2330                 g_warning ("remove to trash is not implemented");
2331
2332         priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
2333         folder = tny_header_get_folder (header);
2334
2335         /* Get account and set it into mail_operation */
2336         priv->account = modest_tny_folder_get_account (TNY_FOLDER(folder));
2337
2338         priv->status = MODEST_MAIL_OPERATION_STATUS_IN_PROGRESS;
2339
2340         /* remove message from folder */
2341         tny_folder_remove_msg (folder, header, &(priv->error));
2342 /*      if (!priv->error) { */
2343 /*              tny_header_set_flags (header, TNY_HEADER_FLAG_DELETED); */
2344 /*              tny_header_set_flags (header, TNY_HEADER_FLAG_SEEN); */
2345
2346 /*              if (TNY_IS_CAMEL_IMAP_FOLDER (folder)) */
2347 /*                      tny_folder_sync_async(folder, FALSE, NULL, NULL, NULL); /\* FALSE --> don't expunge *\/ */
2348 /* /\*                  tny_folder_sync (folder, FALSE, &(priv->error)); /\\* FALSE --> don't expunge *\\/ *\/ */
2349 /*              else if (TNY_IS_CAMEL_POP_FOLDER (folder)) */
2350 /*                      tny_folder_sync_async(folder, FALSE, NULL, NULL, NULL); /\* TRUE --> dont expunge *\/ */
2351 /* /\*                  tny_folder_sync (folder, TRUE, &(priv->error)); /\\* TRUE --> expunge *\\/ *\/ */
2352 /*              else */
2353 /*                      /\* local folders *\/ */
2354 /*                      tny_folder_sync_async(folder, TRUE, NULL, NULL, NULL); /\* TRUE --> expunge *\/ */
2355 /* /\*                  tny_folder_sync (folder, TRUE, &(priv->error)); /\\* TRUE --> expunge *\\/ *\/ */
2356 /*      } */
2357         
2358         
2359         /* Set status */
2360         if (!priv->error)
2361                 priv->status = MODEST_MAIL_OPERATION_STATUS_SUCCESS;
2362         else
2363                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
2364
2365         /* Free */
2366         g_object_unref (G_OBJECT (folder));
2367
2368         /* Notify about operation end */
2369         modest_mail_operation_notify_end (self);
2370 }
2371
2372 static void
2373 transfer_msgs_status_cb (GObject *obj,
2374                          TnyStatus *status,  
2375                          gpointer user_data)
2376 {
2377         XFerMsgAsyncHelper *helper = NULL;
2378         ModestMailOperation *self;
2379         ModestMailOperationPrivate *priv;
2380         ModestMailOperationState *state;
2381
2382
2383         g_return_if_fail (status != NULL);
2384         g_return_if_fail (status->code == TNY_FOLDER_STATUS_CODE_XFER_MSGS);
2385
2386         helper = (XFerMsgAsyncHelper *) user_data;
2387         g_return_if_fail (helper != NULL);       
2388
2389         self = helper->mail_op;
2390         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
2391
2392         priv->done = status->position;
2393         priv->total = status->of_total;
2394
2395         state = modest_mail_operation_clone_state (self);
2396
2397         /* This is not a GDK lock because we are a Tinymail callback and
2398          * Tinymail already acquires the Gdk lock */
2399
2400         /* no gdk_threads_enter (), CHECKED */
2401
2402         g_signal_emit (G_OBJECT (self), signals[PROGRESS_CHANGED_SIGNAL], 0, state, NULL);
2403
2404         /* no gdk_threads_leave (), CHECKED */
2405
2406         g_slice_free (ModestMailOperationState, state);
2407 }
2408
2409
2410 static void
2411 transfer_msgs_cb (TnyFolder *folder, gboolean cancelled, GError *err, gpointer user_data)
2412 {
2413         XFerMsgAsyncHelper *helper;
2414         ModestMailOperation *self;
2415         ModestMailOperationPrivate *priv;
2416         TnyIterator *iter = NULL;
2417         TnyHeader *header = NULL;
2418
2419         helper = (XFerMsgAsyncHelper *) user_data;
2420         self = helper->mail_op;
2421
2422         priv = MODEST_MAIL_OPERATION_GET_PRIVATE (self);
2423
2424         if (err) {
2425                 priv->error = g_error_copy (err);
2426                 priv->done = 0;
2427                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;     
2428         } else if (cancelled) {
2429                 priv->status = MODEST_MAIL_OPERATION_STATUS_CANCELED;
2430                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
2431                              MODEST_MAIL_OPERATION_ERROR_ITEM_NOT_FOUND,
2432                              _("Error trying to refresh the contents of %s"),
2433                              tny_folder_get_name (folder));
2434         } else {
2435                 priv->done = 1;
2436                 priv->status = MODEST_MAIL_OPERATION_STATUS_SUCCESS;
2437         }
2438
2439         
2440         /* Mark headers as deleted and seen */
2441         if ((helper->delete) && 
2442             (priv->status == MODEST_MAIL_OPERATION_STATUS_SUCCESS)) {
2443                 iter = tny_list_create_iterator (helper->headers);
2444                 while (!tny_iterator_is_done (iter)) {
2445                         header = TNY_HEADER (tny_iterator_get_current (iter));
2446                         tny_header_set_flags (header, TNY_HEADER_FLAG_DELETED);
2447                         tny_header_set_flags (header, TNY_HEADER_FLAG_SEEN);
2448                         g_object_unref (header);
2449
2450                         tny_iterator_next (iter);
2451                 }
2452
2453         }
2454                 
2455
2456         /* Notify about operation end */
2457         modest_mail_operation_notify_end (self);
2458
2459         /* If user defined callback function was defined, call it */
2460         if (helper->user_callback) {
2461                 /* This is not a GDK lock because we are a Tinymail callback and
2462                  * Tinymail already acquires the Gdk lock */
2463
2464                 /* no gdk_threads_enter (), CHECKED */
2465                 helper->user_callback (priv->source, helper->user_data);
2466                 /* no gdk_threads_leave (), CHECKED */
2467         }
2468
2469         /* Free */
2470         if (helper->headers)
2471                 g_object_unref (helper->headers);
2472         if (helper->dest_folder)
2473                 g_object_unref (helper->dest_folder);
2474         if (helper->mail_op)
2475                 g_object_unref (helper->mail_op);
2476         if (folder)
2477                 g_object_unref (folder);
2478         if (iter)
2479                 g_object_unref (iter);
2480         g_slice_free   (XFerMsgAsyncHelper, helper);
2481
2482 }
2483
2484 void
2485 modest_mail_operation_xfer_msgs (ModestMailOperation *self,
2486                                  TnyList *headers, 
2487                                  TnyFolder *folder, 
2488                                  gboolean delete_original,
2489                                  XferMsgsAsynUserCallback user_callback,
2490                                  gpointer user_data)
2491 {
2492         ModestMailOperationPrivate *priv = NULL;
2493         TnyIterator *iter = NULL;
2494         TnyFolder *src_folder = NULL;
2495         XFerMsgAsyncHelper *helper = NULL;
2496         TnyHeader *header = NULL;
2497         ModestTnyFolderRules rules = 0;
2498         const gchar *id1 = NULL;
2499         const gchar *id2 = NULL;
2500         gboolean same_folder = FALSE;
2501
2502         g_return_if_fail (MODEST_IS_MAIL_OPERATION (self));
2503         g_return_if_fail (TNY_IS_LIST (headers));
2504         g_return_if_fail (TNY_IS_FOLDER (folder));
2505
2506         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
2507         priv->total = 1;
2508         priv->done = 0;
2509         priv->status = MODEST_MAIL_OPERATION_STATUS_IN_PROGRESS;
2510
2511         /* Apply folder rules */
2512         rules = modest_tny_folder_get_rules (TNY_FOLDER (folder));
2513         if (rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE) {
2514                 /* Set status failed and set an error */
2515                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
2516                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
2517                              MODEST_MAIL_OPERATION_ERROR_FOLDER_RULES,
2518                              _CS("ckct_ib_unable_to_paste_here"));
2519                 /* Notify the queue */
2520                 modest_mail_operation_notify_end (self);
2521                 return;
2522         }
2523                 
2524         /* Get source folder */
2525         iter = tny_list_create_iterator (headers);
2526         header = TNY_HEADER (tny_iterator_get_current (iter));
2527         if (header) {
2528                 src_folder = tny_header_get_folder (header);
2529                 g_object_unref (header);
2530         }
2531
2532         g_object_unref (iter);
2533
2534         /* Check folder source and destination */
2535         id1 = tny_folder_get_id (src_folder);
2536         id2 = tny_folder_get_id (TNY_FOLDER(folder));
2537         same_folder = !g_ascii_strcasecmp (id1, id2);
2538         if (same_folder) {
2539                 /* Set status failed and set an error */
2540                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
2541                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
2542                              MODEST_MAIL_OPERATION_ERROR_BAD_PARAMETER,
2543                              _("mcen_ib_unable_to_copy_samefolder"));
2544                 
2545                 /* Notify the queue */
2546                 modest_mail_operation_notify_end (self);
2547                 
2548                 /* Free */
2549                 g_object_unref (src_folder);            
2550                 return;
2551         }
2552
2553         /* Create the helper */
2554         helper = g_slice_new0 (XFerMsgAsyncHelper);
2555         helper->mail_op = g_object_ref(self);
2556         helper->dest_folder = g_object_ref(folder);
2557         helper->headers = g_object_ref(headers);
2558         helper->user_callback = user_callback;
2559         helper->user_data = user_data;
2560         helper->delete = delete_original;
2561
2562         /* Get account and set it into mail_operation */
2563         priv->account = modest_tny_folder_get_account (src_folder);
2564
2565         /* Transfer messages */
2566         tny_folder_transfer_msgs_async (src_folder, 
2567                                         headers, 
2568                                         folder, 
2569                                         delete_original, 
2570                                         transfer_msgs_cb, 
2571                                         transfer_msgs_status_cb,
2572                                         helper);
2573 }
2574
2575
2576 static void
2577 on_refresh_folder (TnyFolder   *folder, 
2578                    gboolean     cancelled, 
2579                    GError     *error,
2580                    gpointer     user_data)
2581 {
2582         RefreshAsyncHelper *helper = NULL;
2583         ModestMailOperation *self = NULL;
2584         ModestMailOperationPrivate *priv = NULL;
2585
2586         helper = (RefreshAsyncHelper *) user_data;
2587         self = helper->mail_op;
2588         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
2589
2590         g_return_if_fail(priv!=NULL);
2591
2592         if (error) {
2593                 priv->error = g_error_copy (error);
2594                 priv->status = MODEST_MAIL_OPERATION_STATUS_FAILED;
2595                 printf("DEBUG: %s: Operation error:\n %s", __FUNCTION__,
2596                        error->message);
2597                 goto out;
2598         }
2599
2600         if (cancelled) {
2601                 priv->status = MODEST_MAIL_OPERATION_STATUS_CANCELED;
2602                 g_set_error (&(priv->error), MODEST_MAIL_OPERATION_ERROR,
2603                              MODEST_MAIL_OPERATION_ERROR_ITEM_NOT_FOUND,
2604                              _("Error trying to refresh the contents of %s"),
2605                              tny_folder_get_name (folder));
2606                 printf("DEBUG: %s: Operation cancelled.\n", __FUNCTION__);
2607                 goto out;
2608         }
2609
2610         priv->status = MODEST_MAIL_OPERATION_STATUS_SUCCESS;
2611
2612         /* Call user defined callback, if it exists */
2613         if (helper->user_callback) {
2614
2615                 /* This is not a GDK lock because we are a Tinymail callback and
2616                  * Tinymail already acquires the Gdk lock */
2617
2618                 /* no gdk_threads_enter (), CHECKED */
2619                 helper->user_callback (self, folder, helper->user_data);
2620                 /* no gdk_threads_leave (), CHECKED */
2621         }
2622
2623  out:
2624         /* Free */
2625         g_slice_free   (RefreshAsyncHelper, helper);
2626
2627         /* Notify about operation end */
2628         modest_mail_operation_notify_end (self);
2629         g_object_unref(self);
2630 }
2631
2632 static void
2633 on_refresh_folder_status_update (GObject *obj,
2634                                  TnyStatus *status,
2635                                  gpointer user_data)
2636 {
2637         RefreshAsyncHelper *helper = NULL;
2638         ModestMailOperation *self = NULL;
2639         ModestMailOperationPrivate *priv = NULL;
2640         ModestMailOperationState *state;
2641
2642         g_return_if_fail (user_data != NULL);
2643         g_return_if_fail (status != NULL);
2644         g_return_if_fail (status->code == TNY_FOLDER_STATUS_CODE_REFRESH);
2645
2646         helper = (RefreshAsyncHelper *) user_data;
2647         self = helper->mail_op;
2648         g_return_if_fail (MODEST_IS_MAIL_OPERATION(self));
2649
2650         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
2651
2652         priv->done = status->position;
2653         priv->total = status->of_total;
2654
2655         state = modest_mail_operation_clone_state (self);
2656
2657         /* This is not a GDK lock because we are a Tinymail callback and
2658          * Tinymail already acquires the Gdk lock */
2659
2660         /* no gdk_threads_enter (), CHECKED */
2661
2662         g_signal_emit (G_OBJECT (self), signals[PROGRESS_CHANGED_SIGNAL], 0, state, NULL);
2663
2664         /* no gdk_threads_leave (), CHECKED */
2665
2666         g_slice_free (ModestMailOperationState, state);
2667 }
2668
2669 void 
2670 modest_mail_operation_refresh_folder  (ModestMailOperation *self,
2671                                        TnyFolder *folder,
2672                                        RefreshAsyncUserCallback user_callback,
2673                                        gpointer user_data)
2674 {
2675         ModestMailOperationPrivate *priv = NULL;
2676         RefreshAsyncHelper *helper = NULL;
2677
2678         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
2679
2680         priv->status = MODEST_MAIL_OPERATION_STATUS_IN_PROGRESS;
2681
2682         /* Get account and set it into mail_operation */
2683         priv->account = modest_tny_folder_get_account  (folder);
2684
2685         /* Create the helper */
2686         helper = g_slice_new0 (RefreshAsyncHelper);
2687         helper->mail_op = g_object_ref(self);
2688         helper->user_callback = user_callback;
2689         helper->user_data = user_data;
2690
2691         /* Refresh the folder. TODO: tinymail could issue a status
2692            updates before the callback call then this could happen. We
2693            must review the design */
2694         tny_folder_refresh_async (folder,
2695                                   on_refresh_folder,
2696                                   on_refresh_folder_status_update,
2697                                   helper);
2698 }
2699
2700 /**
2701  *
2702  * It's used by the mail operation queue to notify the observers
2703  * attached to that signal that the operation finished. We need to use
2704  * that because tinymail does not give us the progress of a given
2705  * operation when it finishes (it directly calls the operation
2706  * callback).
2707  */
2708 static void
2709 modest_mail_operation_notify_end (ModestMailOperation *self)
2710 {
2711         ModestMailOperationState *state;
2712         ModestMailOperationPrivate *priv = NULL;
2713
2714         g_return_if_fail (self);
2715
2716         priv = MODEST_MAIL_OPERATION_GET_PRIVATE(self);
2717
2718         /* Set the account back to not busy */
2719         if (priv->account_name) {
2720                 modest_account_mgr_set_account_busy (modest_runtime_get_account_mgr(), 
2721                                                      priv->account_name, FALSE);
2722                 g_free(priv->account_name);
2723                 priv->account_name = NULL;
2724         }
2725         
2726         /* Notify the observers about the mail operation end */
2727         /* We do not wrapp this emission because we assume that this
2728            function is always called from within the main lock */
2729         state = modest_mail_operation_clone_state (self);
2730         g_signal_emit (G_OBJECT (self), signals[PROGRESS_CHANGED_SIGNAL], 0, state, NULL);
2731         g_slice_free (ModestMailOperationState, state);
2732 }