f40554fd881e994531d1fc0e136e20a7a8935657
[modest] / src / widgets / modest-folder-view.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 <glib/gi18n.h>
31 #include <string.h>
32 #include <gdk/gdkkeysyms.h>
33 #include <tny-account-store-view.h>
34 #include <tny-gtk-account-list-model.h>
35 #include <tny-gtk-folder-list-store.h>
36 #include <tny-gtk-folder-store-tree-model.h>
37 #include <tny-gtk-header-list-model.h>
38 #include <tny-merge-folder.h>
39 #include <tny-folder.h>
40 #include <tny-folder-store-observer.h>
41 #include <tny-account-store.h>
42 #include <tny-account.h>
43 #include <tny-folder.h>
44 #include <tny-camel-folder.h>
45 #include <tny-simple-list.h>
46 #include <tny-camel-account.h>
47 #include <modest-defs.h>
48 #include <modest-tny-account.h>
49 #include <modest-tny-folder.h>
50 #include <modest-tny-local-folders-account.h>
51 #include <modest-tny-outbox-account.h>
52 #include <modest-marshal.h>
53 #include <modest-icon-names.h>
54 #include <modest-tny-account-store.h>
55 #include <modest-tny-local-folders-account.h>
56 #include <modest-text-utils.h>
57 #include <modest-runtime.h>
58 #include "modest-folder-view.h"
59 #include <modest-platform.h>
60 #include <modest-widget-memory.h>
61 #include <modest-ui-actions.h>
62 #include "modest-dnd.h"
63 #include "modest-ui-constants.h"
64 #include "widgets/modest-window.h"
65
66 /* Folder view drag types */
67 const GtkTargetEntry folder_view_drag_types[] =
68 {
69         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, MODEST_FOLDER_ROW },
70         { GTK_TREE_PATH_AS_STRING_LIST, GTK_TARGET_SAME_APP, MODEST_HEADER_ROW }
71 };
72
73 /* Default icon sizes for Fremantle style are different */
74 #ifdef MODEST_TOOLKIT_HILDON2
75 #define FOLDER_ICON_SIZE MODEST_ICON_SIZE_BIG
76 #else
77 #define FOLDER_ICON_SIZE MODEST_ICON_SIZE_SMALL
78 #endif
79
80 /* Column names depending on we use list store or tree store */
81 #ifdef MODEST_TOOLKIT_HILDON2
82 #define NAME_COLUMN TNY_GTK_FOLDER_LIST_STORE_NAME_COLUMN
83 #define UNREAD_COLUMN TNY_GTK_FOLDER_LIST_STORE_UNREAD_COLUMN
84 #define ALL_COLUMN TNY_GTK_FOLDER_LIST_STORE_ALL_COLUMN
85 #define TYPE_COLUMN TNY_GTK_FOLDER_LIST_STORE_TYPE_COLUMN
86 #define INSTANCE_COLUMN TNY_GTK_FOLDER_LIST_STORE_INSTANCE_COLUMN
87 #else
88 #define NAME_COLUMN TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN
89 #define UNREAD_COLUMN TNY_GTK_FOLDER_STORE_TREE_MODEL_UNREAD_COLUMN
90 #define ALL_COLUMN TNY_GTK_FOLDER_STORE_TREE_MODEL_ALL_COLUMN
91 #define TYPE_COLUMN TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN
92 #define INSTANCE_COLUMN TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN
93 #endif
94
95 /* 'private'/'protected' functions */
96 static void modest_folder_view_class_init  (ModestFolderViewClass *klass);
97 static void modest_folder_view_init        (ModestFolderView *obj);
98 static void modest_folder_view_finalize    (GObject *obj);
99
100 static void         tny_account_store_view_init (gpointer g,
101                                                  gpointer iface_data);
102
103 static void         modest_folder_view_set_account_store (TnyAccountStoreView *self,
104                                                           TnyAccountStore     *account_store);
105
106 static void         on_selection_changed   (GtkTreeSelection *sel,
107                                             gpointer data);
108
109 static void         on_row_activated       (GtkTreeView *treeview,
110                                             GtkTreePath *path,
111                                             GtkTreeViewColumn *column,
112                                             gpointer userdata);
113
114 static void         on_account_removed     (TnyAccountStore *self,
115                                             TnyAccount *account,
116                                             gpointer user_data);
117
118 static void         on_account_inserted    (TnyAccountStore *self,
119                                             TnyAccount *account,
120                                             gpointer user_data);
121
122 static void         on_account_changed    (TnyAccountStore *self,
123                                             TnyAccount *account,
124                                             gpointer user_data);
125
126 static gint         cmp_rows               (GtkTreeModel *tree_model,
127                                             GtkTreeIter *iter1,
128                                             GtkTreeIter *iter2,
129                                             gpointer user_data);
130
131 static gboolean     filter_row             (GtkTreeModel *model,
132                                             GtkTreeIter *iter,
133                                             gpointer data);
134
135 static gboolean     on_key_pressed         (GtkWidget *self,
136                                             GdkEventKey *event,
137                                             gpointer user_data);
138
139 static void         on_configuration_key_changed  (ModestConf* conf,
140                                                    const gchar *key,
141                                                    ModestConfEvent event,
142                                                    ModestConfNotificationId notification_id,
143                                                    ModestFolderView *self);
144
145 /* DnD functions */
146 static void         on_drag_data_get       (GtkWidget *widget,
147                                             GdkDragContext *context,
148                                             GtkSelectionData *selection_data,
149                                             guint info,
150                                             guint time,
151                                             gpointer data);
152
153 static void         on_drag_data_received  (GtkWidget *widget,
154                                             GdkDragContext *context,
155                                             gint x,
156                                             gint y,
157                                             GtkSelectionData *selection_data,
158                                             guint info,
159                                             guint time,
160                                             gpointer data);
161
162 static gboolean     on_drag_motion         (GtkWidget      *widget,
163                                             GdkDragContext *context,
164                                             gint            x,
165                                             gint            y,
166                                             guint           time,
167                                             gpointer        user_data);
168
169 static void         expand_root_items (ModestFolderView *self);
170
171 static gint         expand_row_timeout     (gpointer data);
172
173 static void         setup_drag_and_drop    (GtkTreeView *self);
174
175 static gboolean     _clipboard_set_selected_data (ModestFolderView *folder_view,
176                                                   gboolean delete);
177
178 static void         _clear_hidding_filter (ModestFolderView *folder_view);
179
180 #ifndef MODEST_TOOLKIT_HILDON2
181 static void         on_row_inserted_maybe_select_folder (GtkTreeModel     *tree_model,
182                                                          GtkTreePath      *path,
183                                                          GtkTreeIter      *iter,
184                                                          ModestFolderView *self);
185 #endif
186
187 static void         on_display_name_changed (ModestAccountMgr *self,
188                                              const gchar *account,
189                                              gpointer user_data);
190 static void         update_style (ModestFolderView *self);
191 static void         on_notify_style (GObject *obj, GParamSpec *spec, gpointer userdata);
192 static gint         get_cmp_pos (TnyFolderType t, TnyFolder *folder_store);
193 static gboolean     inbox_is_special (TnyFolderStore *folder_store);
194
195 static gboolean     get_inner_models        (ModestFolderView *self,
196                                              GtkTreeModel **filter_model,
197                                              GtkTreeModel **sort_model,
198                                              GtkTreeModel **tny_model);
199
200 enum {
201         FOLDER_SELECTION_CHANGED_SIGNAL,
202         FOLDER_DISPLAY_NAME_CHANGED_SIGNAL,
203         FOLDER_ACTIVATED_SIGNAL,
204         VISIBLE_ACCOUNT_CHANGED_SIGNAL,
205         LAST_SIGNAL
206 };
207
208 typedef struct _ModestFolderViewPrivate ModestFolderViewPrivate;
209 struct _ModestFolderViewPrivate {
210         TnyAccountStore      *account_store;
211         TnyFolderStore       *cur_folder_store;
212
213         TnyFolder            *folder_to_select; /* folder to select after the next update */
214
215         gulong                changed_signal;
216         gulong                account_inserted_signal;
217         gulong                account_removed_signal;
218         gulong                account_changed_signal;
219         gulong                conf_key_signal;
220         gulong                display_name_changed_signal;
221
222         /* not unref this object, its a singlenton */
223         ModestEmailClipboard *clipboard;
224
225         /* Filter tree model */
226         gchar **hidding_ids;
227         guint n_selected;
228         ModestFolderViewFilter filter;
229
230         TnyFolderStoreQuery  *query;
231         guint                 timer_expander;
232
233         gchar                *local_account_name;
234         gchar                *visible_account_id;
235         gchar                *mailbox;
236         ModestFolderViewStyle style;
237         ModestFolderViewCellStyle cell_style;
238
239         gboolean  reselect; /* we use this to force a reselection of the INBOX */
240         gboolean  show_non_move;
241         TnyList   *list_to_move;
242         gboolean  reexpand; /* next time we expose, we'll expand all root folders */
243
244         GtkCellRenderer *messages_renderer;
245
246         gulong                outbox_deleted_handler;
247 };
248 #define MODEST_FOLDER_VIEW_GET_PRIVATE(o)                       \
249         (G_TYPE_INSTANCE_GET_PRIVATE((o),                       \
250                                      MODEST_TYPE_FOLDER_VIEW,   \
251                                      ModestFolderViewPrivate))
252 /* globals */
253 static GObjectClass *parent_class = NULL;
254
255 static guint signals[LAST_SIGNAL] = {0};
256
257 GType
258 modest_folder_view_get_type (void)
259 {
260         static GType my_type = 0;
261         if (!my_type) {
262                 static const GTypeInfo my_info = {
263                         sizeof(ModestFolderViewClass),
264                         NULL,           /* base init */
265                         NULL,           /* base finalize */
266                         (GClassInitFunc) modest_folder_view_class_init,
267                         NULL,           /* class finalize */
268                         NULL,           /* class data */
269                         sizeof(ModestFolderView),
270                         1,              /* n_preallocs */
271                         (GInstanceInitFunc) modest_folder_view_init,
272                         NULL
273                 };
274
275                 static const GInterfaceInfo tny_account_store_view_info = {
276                         (GInterfaceInitFunc) tny_account_store_view_init, /* interface_init */
277                         NULL,         /* interface_finalize */
278                         NULL          /* interface_data */
279                 };
280
281
282                 my_type = g_type_register_static (GTK_TYPE_TREE_VIEW,
283                                                   "ModestFolderView",
284                                                   &my_info, 0);
285
286                 g_type_add_interface_static (my_type,
287                                              TNY_TYPE_ACCOUNT_STORE_VIEW,
288                                              &tny_account_store_view_info);
289         }
290         return my_type;
291 }
292
293 static void
294 modest_folder_view_class_init (ModestFolderViewClass *klass)
295 {
296         GObjectClass *gobject_class;
297         GtkTreeViewClass *treeview_class;
298         gobject_class = (GObjectClass*) klass;
299         treeview_class = (GtkTreeViewClass*) klass;
300
301         parent_class            = g_type_class_peek_parent (klass);
302         gobject_class->finalize = modest_folder_view_finalize;
303
304         g_type_class_add_private (gobject_class,
305                                   sizeof(ModestFolderViewPrivate));
306
307         signals[FOLDER_SELECTION_CHANGED_SIGNAL] =
308                 g_signal_new ("folder_selection_changed",
309                               G_TYPE_FROM_CLASS (gobject_class),
310                               G_SIGNAL_RUN_FIRST,
311                               G_STRUCT_OFFSET (ModestFolderViewClass,
312                                                folder_selection_changed),
313                               NULL, NULL,
314                               modest_marshal_VOID__POINTER_BOOLEAN,
315                               G_TYPE_NONE, 2, G_TYPE_POINTER, G_TYPE_BOOLEAN);
316
317         /*
318          * This signal is emitted whenever the currently selected
319          * folder display name is computed. Note that the name could
320          * be different to the folder name, because we could append
321          * the unread messages count to the folder name to build the
322          * folder display name
323          */
324         signals[FOLDER_DISPLAY_NAME_CHANGED_SIGNAL] =
325                 g_signal_new ("folder-display-name-changed",
326                               G_TYPE_FROM_CLASS (gobject_class),
327                               G_SIGNAL_RUN_FIRST,
328                               G_STRUCT_OFFSET (ModestFolderViewClass,
329                                                folder_display_name_changed),
330                               NULL, NULL,
331                               g_cclosure_marshal_VOID__STRING,
332                               G_TYPE_NONE, 1, G_TYPE_STRING);
333
334         signals[FOLDER_ACTIVATED_SIGNAL] =
335                 g_signal_new ("folder_activated",
336                               G_TYPE_FROM_CLASS (gobject_class),
337                               G_SIGNAL_RUN_FIRST,
338                               G_STRUCT_OFFSET (ModestFolderViewClass,
339                                                folder_activated),
340                               NULL, NULL,
341                               g_cclosure_marshal_VOID__POINTER,
342                               G_TYPE_NONE, 1, G_TYPE_POINTER);
343
344         /*
345          * Emitted whenever the visible account changes
346          */
347         signals[VISIBLE_ACCOUNT_CHANGED_SIGNAL] =
348                 g_signal_new ("visible-account-changed",
349                               G_TYPE_FROM_CLASS (gobject_class),
350                               G_SIGNAL_RUN_FIRST,
351                               G_STRUCT_OFFSET (ModestFolderViewClass,
352                                                visible_account_changed),
353                               NULL, NULL,
354                               g_cclosure_marshal_VOID__STRING,
355                               G_TYPE_NONE, 1, G_TYPE_STRING);
356
357         treeview_class->select_cursor_parent = NULL;
358
359 #ifdef MODEST_TOOLKIT_HILDON2
360         gtk_rc_parse_string ("class \"ModestFolderView\" style \"fremantle-touchlist\"");
361         
362 #endif
363
364 }
365
366 /* Retrieves the filter, sort and tny models of the folder view. If
367    any of these does not exist then it returns FALSE */
368 static gboolean
369 get_inner_models (ModestFolderView *self, 
370                   GtkTreeModel **filter_model,
371                   GtkTreeModel **sort_model,
372                   GtkTreeModel **tny_model)
373 {
374         GtkTreeModel *s_model, *f_model, *t_model;
375
376         f_model = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
377         if (!GTK_IS_TREE_MODEL_FILTER(f_model)) {
378                 g_warning ("BUG: %s: not a valid filter model", __FUNCTION__);
379                 return FALSE;
380         }
381
382         s_model = gtk_tree_model_filter_get_model (GTK_TREE_MODEL_FILTER (f_model));
383         if (!GTK_IS_TREE_MODEL_SORT(s_model)) {
384                 g_warning ("BUG: %s: not a valid sort model", __FUNCTION__);
385                 return FALSE;
386         }
387
388         t_model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (s_model));
389
390         /* Assign values */
391         if (filter_model)
392                 *filter_model = f_model;
393         if (sort_model)
394                 *sort_model = s_model;
395         if (tny_model)
396                 *tny_model = t_model;
397
398         return TRUE;
399 }
400
401 /* Simplify checks for NULLs: */
402 static gboolean
403 strings_are_equal (const gchar *a, const gchar *b)
404 {
405         if (!a && !b)
406                 return TRUE;
407         if (a && b)
408         {
409                 return (strcmp (a, b) == 0);
410         }
411         else
412                 return FALSE;
413 }
414
415 static gboolean
416 on_model_foreach_set_name(GtkTreeModel *model, GtkTreePath *path,  GtkTreeIter *iter, gpointer data)
417 {
418         GObject *instance = NULL;
419
420         gtk_tree_model_get (model, iter,
421                             INSTANCE_COLUMN, &instance,
422                             -1);
423
424         if (!instance)
425                 return FALSE; /* keep walking */
426
427         if (!TNY_IS_ACCOUNT (instance)) {
428                 g_object_unref (instance);
429                 return FALSE; /* keep walking */
430         }
431
432         /* Check if this is the looked-for account: */
433         TnyAccount *this_account = TNY_ACCOUNT (instance);
434         TnyAccount *account = TNY_ACCOUNT (data);
435
436         const gchar *this_account_id = tny_account_get_id(this_account);
437         const gchar *account_id = tny_account_get_id(account);
438         g_object_unref (instance);
439         instance = NULL;
440
441         /* printf ("DEBUG: %s: this_account_id=%s, account_id=%s\n", __FUNCTION__, this_account_id, account_id); */
442         if (strings_are_equal(this_account_id, account_id)) {
443                 /* Tell the model that the data has changed, so that
444                  * it calls the cell_data_func callbacks again: */
445                 /* TODO: This does not seem to actually cause the new string to be shown: */
446                 gtk_tree_model_row_changed (model, path, iter);
447
448                 return TRUE; /* stop walking */
449         }
450
451         return FALSE; /* keep walking */
452 }
453
454 typedef struct
455 {
456         ModestFolderView *self;
457         gchar *previous_name;
458 } GetMmcAccountNameData;
459
460 static void
461 on_get_mmc_account_name (TnyStoreAccount* account, gpointer user_data)
462 {
463         /* printf ("DEBU1G: %s: account name=%s\n", __FUNCTION__, tny_account_get_name (TNY_ACCOUNT(account))); */
464
465         GetMmcAccountNameData *data = (GetMmcAccountNameData*)user_data;
466
467         if (!strings_are_equal (
468                 tny_account_get_name(TNY_ACCOUNT(account)),
469                 data->previous_name)) {
470
471                 /* Tell the model that the data has changed, so that
472                  * it calls the cell_data_func callbacks again: */
473                 ModestFolderView *self = data->self;
474                 GtkTreeModel *model = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
475                 if (model)
476                         gtk_tree_model_foreach(model, on_model_foreach_set_name, account);
477         }
478
479         g_free (data->previous_name);
480         g_slice_free (GetMmcAccountNameData, data);
481 }
482
483 static void
484 convert_parent_folders_to_dots (gchar **item_name)
485 {
486         gint n_parents = 0;
487         gchar *c;
488         gchar *last_separator;
489
490         if (item_name == NULL)
491                 return;
492
493         for (c = *item_name; *c != '\0'; c++) {
494                 if (g_str_has_prefix (c, MODEST_FOLDER_PATH_SEPARATOR)) {
495                         n_parents++;
496                 }
497         }
498
499         last_separator = g_strrstr (*item_name, MODEST_FOLDER_PATH_SEPARATOR);
500         if (last_separator != NULL) {
501                 last_separator = last_separator + strlen (MODEST_FOLDER_PATH_SEPARATOR);
502         }
503
504         if (n_parents > 0) {
505                 GString *buffer;
506                 gint i;
507
508                 buffer = g_string_new ("");
509                 for (i = 0; i < n_parents; i++) {
510                         buffer = g_string_append (buffer, MODEST_FOLDER_DOT);
511                 }
512                 buffer = g_string_append (buffer, last_separator);
513                 g_free (*item_name);
514                 *item_name = g_string_free (buffer, FALSE);
515         }
516
517 }
518
519 static void
520 format_compact_style (gchar **item_name,
521                       GObject *instance,
522                       const gchar *mailbox,
523                       gboolean bold,
524                       gboolean multiaccount,
525                       gboolean *use_markup)
526 {
527         TnyFolder *folder;
528         gboolean is_special;
529         TnyFolderType folder_type;
530
531         if (!TNY_IS_FOLDER (instance))
532                 return;
533
534         folder = (TnyFolder *) instance;
535
536         folder_type = tny_folder_get_folder_type (folder);
537         is_special = (get_cmp_pos (folder_type, folder)!= 4);
538
539         if (mailbox) {
540                 /* Remove mailbox prefix if any */
541                 gchar *prefix = g_strconcat (mailbox, MODEST_FOLDER_PATH_SEPARATOR, NULL);
542                 if (g_str_has_prefix (*item_name, prefix)) {
543                         gchar *new_item_name;
544
545                         new_item_name = g_strdup (*item_name + strlen (prefix));
546                         if (!g_ascii_strcasecmp (new_item_name, "Inbox")) {
547                                 g_free (new_item_name);
548                                 new_item_name = g_strdup (_("mcen_me_folder_inbox"));
549                         }
550                         g_free (*item_name);
551                         *item_name = new_item_name;
552                 }
553         }
554
555         if (!is_special || multiaccount) {
556                 TnyAccount *account = tny_folder_get_account (folder);
557                 const gchar *folder_name;
558                 gboolean concat_folder_name = FALSE;
559                 GString *buffer;
560
561                 /* Should not happen */
562                 if (account == NULL)
563                         return;
564
565                 /* convert parent folders to dots */
566                 convert_parent_folders_to_dots  (item_name);
567
568                 folder_name = tny_folder_get_name (folder);
569                 if (g_str_has_suffix (*item_name, folder_name)) {
570                         gchar *offset = g_strrstr (*item_name, folder_name);
571                         *offset = '\0';
572                         concat_folder_name = TRUE;
573                 }
574
575                 buffer = g_string_new ("");
576
577                 buffer = g_string_append (buffer, *item_name);
578                 if (concat_folder_name) {
579                         if (bold) buffer = g_string_append (buffer, "<span weight='bold'>");
580                         buffer = g_string_append (buffer, folder_name);
581                         if (bold) buffer = g_string_append (buffer, "</span>");
582                 }
583                 g_free (*item_name);
584                 g_object_unref (account);
585
586                 *item_name = g_string_free (buffer, FALSE);
587                 *use_markup = bold;
588         } else {
589                 *use_markup = FALSE;
590         }
591 }
592
593 static void
594 text_cell_data  (GtkTreeViewColumn *column,
595                  GtkCellRenderer *renderer,
596                  GtkTreeModel *tree_model,
597                  GtkTreeIter *iter,
598                  gpointer data)
599 {
600         ModestFolderViewPrivate *priv;
601         GObject *rendobj = (GObject *) renderer;
602         gchar *fname = NULL;
603         TnyFolderType type = TNY_FOLDER_TYPE_UNKNOWN;
604         GObject *instance = NULL;
605         gboolean use_markup = FALSE;
606
607         gtk_tree_model_get (tree_model, iter,
608                             NAME_COLUMN, &fname,
609                             TYPE_COLUMN, &type,
610                             INSTANCE_COLUMN, &instance,
611                             -1);
612         if (!fname || !instance)
613                 goto end;
614
615         ModestFolderView *self = MODEST_FOLDER_VIEW (data);
616         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE (self);
617
618         gchar *item_name = NULL;
619         gint item_weight = 400;
620
621         if (type != TNY_FOLDER_TYPE_ROOT) {
622                 gint number = 0;
623                 gboolean drafts;
624
625                 if (modest_tny_folder_is_local_folder (TNY_FOLDER (instance)) ||
626                     modest_tny_folder_is_memory_card_folder (TNY_FOLDER (instance))) {
627                         type = modest_tny_folder_get_local_or_mmc_folder_type (TNY_FOLDER (instance));
628                         if (type != TNY_FOLDER_TYPE_UNKNOWN) {
629                                 g_free (fname);
630                                 fname = g_strdup (modest_local_folder_info_get_type_display_name (type));
631                         }
632                 } else {
633                         /* Sometimes an special folder is reported by the server as
634                            NORMAL, like some versions of Dovecot */
635                         if (type == TNY_FOLDER_TYPE_NORMAL ||
636                             type == TNY_FOLDER_TYPE_UNKNOWN) {
637                                 type = modest_tny_folder_guess_folder_type (TNY_FOLDER (instance));
638                         }
639                 }
640
641                 /* note: we cannot reliably get the counts from the
642                  * tree model, we need to use explicit calls on
643                  * tny_folder for some reason. Select the number to
644                  * show: the unread or unsent messages. in case of
645                  * outbox/drafts, show all */
646                 if ((type == TNY_FOLDER_TYPE_DRAFTS) ||
647                     (type == TNY_FOLDER_TYPE_OUTBOX) ||
648                     (type == TNY_FOLDER_TYPE_MERGE)) { /* _OUTBOX actually returns _MERGE... */
649                         number = tny_folder_get_all_count (TNY_FOLDER(instance));
650                         drafts = TRUE;
651                 } else {
652                         number = tny_folder_get_unread_count (TNY_FOLDER(instance));
653                         drafts = FALSE;
654                 }
655
656                 if (priv->cell_style == MODEST_FOLDER_VIEW_CELL_STYLE_COMPACT) {
657                         item_name = g_strdup (fname);
658                         if (number > 0) {
659                                 item_weight = 800;
660                         } else {
661                                 item_weight = 400;
662                         }
663                 } else {
664                         /* Use bold font style if there are unread or unset messages */
665                         if (number > 0) {
666                                 item_name = g_strdup_printf ("%s (%d)", fname, number);
667                                 item_weight = 800;
668                         } else {
669                                 item_name = g_strdup (fname);
670                                 item_weight = 400;
671                         }
672                 }
673
674         } else if (TNY_IS_ACCOUNT (instance)) {
675                 /* If it's a server account */
676                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (instance))) {
677                         item_name = g_strdup (priv->local_account_name);
678                         item_weight = 800;
679                 } else if (modest_tny_account_is_memory_card_account (TNY_ACCOUNT (instance))) {
680                         /* fname is only correct when the items are first
681                          * added to the model, not when the account is
682                          * changed later, so get the name from the account
683                          * instance: */
684                         item_name = g_strdup (tny_account_get_name (TNY_ACCOUNT (instance)));
685                         item_weight = 800;
686                 } else {
687                         item_name = g_strdup (fname);
688                         item_weight = 800;
689                 }
690         }
691
692         if (!item_name)
693                 item_name = g_strdup ("unknown");
694
695         if (priv->cell_style == MODEST_FOLDER_VIEW_CELL_STYLE_COMPACT) {
696                 gboolean multiaccount;
697
698                 multiaccount = (priv->style == MODEST_FOLDER_VIEW_STYLE_SHOW_ALL);
699                 /* Convert item_name to markup */
700                 format_compact_style (&item_name, instance, priv->mailbox,
701                                       item_weight == 800, 
702                                       multiaccount, &use_markup);
703         }
704
705         if (item_name && item_weight) {
706                 /* Set the name in the treeview cell: */
707                 if (use_markup)
708                         g_object_set (rendobj, "markup", item_name, NULL);
709                 else
710                         g_object_set (rendobj, "text", item_name, "weight", item_weight, NULL);
711
712                 /* Notify display name observers */
713                 /* TODO: What listens for this signal, and how can it use only the new name? */
714                 if (((GObject *) priv->cur_folder_store) == instance) {
715                         g_signal_emit (G_OBJECT(self),
716                                                signals[FOLDER_DISPLAY_NAME_CHANGED_SIGNAL], 0,
717                                                item_name);
718                 }
719                 g_free (item_name);
720
721         }
722
723         /* If it is a Memory card account, make sure that we have the correct name.
724          * This function will be trigerred again when the name has been retrieved: */
725         if (TNY_IS_STORE_ACCOUNT (instance) &&
726                 modest_tny_account_is_memory_card_account (TNY_ACCOUNT (instance))) {
727
728                 /* Get the account name asynchronously: */
729                 GetMmcAccountNameData *callback_data =
730                         g_slice_new0(GetMmcAccountNameData);
731                 callback_data->self = self;
732
733                 const gchar *name = tny_account_get_name (TNY_ACCOUNT(instance));
734                 if (name)
735                         callback_data->previous_name = g_strdup (name);
736
737                 modest_tny_account_get_mmc_account_name (TNY_STORE_ACCOUNT (instance),
738                                                          on_get_mmc_account_name, callback_data);
739         }
740  end:
741         if (instance)
742                 g_object_unref (G_OBJECT (instance));
743         if (fname)
744                 g_free (fname);
745 }
746
747 static void
748 messages_cell_data  (GtkTreeViewColumn *column,
749                  GtkCellRenderer *renderer,
750                  GtkTreeModel *tree_model,
751                  GtkTreeIter *iter,
752                  gpointer data)
753 {
754         ModestFolderView *self; 
755         ModestFolderViewPrivate *priv;
756         GObject *rendobj = (GObject *) renderer;
757         TnyFolderType type = TNY_FOLDER_TYPE_UNKNOWN;
758         GObject *instance = NULL;
759         gchar *item_name = NULL;
760
761         gtk_tree_model_get (tree_model, iter,
762                             TYPE_COLUMN, &type,
763                             INSTANCE_COLUMN, &instance,
764                             -1);
765         if (!instance)
766                 goto end;
767
768         self = MODEST_FOLDER_VIEW (data);
769         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE (self);
770
771
772         if (type != TNY_FOLDER_TYPE_ROOT) {
773                 gint number = 0;
774                 gboolean drafts;
775
776                 if (modest_tny_folder_is_local_folder (TNY_FOLDER (instance)) ||
777                     modest_tny_folder_is_memory_card_folder (TNY_FOLDER (instance))) {
778                         type = modest_tny_folder_get_local_or_mmc_folder_type (TNY_FOLDER (instance));
779                 } else {
780                         /* Sometimes an special folder is reported by the server as
781                            NORMAL, like some versions of Dovecot */
782                         if (type == TNY_FOLDER_TYPE_NORMAL ||
783                             type == TNY_FOLDER_TYPE_UNKNOWN) {
784                                 type = modest_tny_folder_guess_folder_type (TNY_FOLDER (instance));
785                         }
786                 }
787
788                 /* note: we cannot reliably get the counts from the tree model, we need
789                  * to use explicit calls on tny_folder for some reason.
790                  */
791                 /* Select the number to show: the unread or unsent messages. in case of outbox/drafts, show all */
792                 if ((type == TNY_FOLDER_TYPE_DRAFTS) ||
793                     (type == TNY_FOLDER_TYPE_OUTBOX) ||
794                     (type == TNY_FOLDER_TYPE_MERGE)) { /* _OUTBOX actually returns _MERGE... */
795                         number = tny_folder_get_all_count (TNY_FOLDER(instance));
796                         drafts = TRUE;
797                 } else {
798                         number = tny_folder_get_unread_count (TNY_FOLDER(instance));
799                         drafts = FALSE;
800                 }
801
802                 if (priv->cell_style == MODEST_FOLDER_VIEW_CELL_STYLE_COMPACT) {
803                         if (number > 0) {
804                                 item_name = g_strdup_printf (drafts?_("mcen_ti_messages"):_("mcen_ti_new_messages"), 
805                                                              number);
806                         } 
807                 } 
808
809         } 
810
811         if (!item_name)
812                 item_name = g_strdup ("");
813
814         if (item_name) {
815                 /* Set the name in the treeview cell: */
816                 g_object_set (rendobj,"text", item_name, NULL);
817
818                 g_free (item_name);
819
820         }
821
822  end:
823         if (instance)
824                 g_object_unref (G_OBJECT (instance));
825 }
826
827
828 typedef struct {
829         GdkPixbuf *pixbuf;
830         GdkPixbuf *pixbuf_open;
831         GdkPixbuf *pixbuf_close;
832 } ThreePixbufs;
833
834
835 static inline GdkPixbuf *
836 get_composite_pixbuf (const gchar *icon_name,
837                       const gint size,
838                       GdkPixbuf *base_pixbuf)
839 {
840         GdkPixbuf *emblem, *retval = NULL;
841
842         emblem = modest_platform_get_icon (icon_name, size);
843         if (emblem) {
844                 retval = gdk_pixbuf_copy (base_pixbuf);
845                 gdk_pixbuf_composite (emblem, retval, 0, 0,
846                                       MIN (gdk_pixbuf_get_width (emblem),
847                                            gdk_pixbuf_get_width (retval)),
848                                       MIN (gdk_pixbuf_get_height (emblem),
849                                            gdk_pixbuf_get_height (retval)),
850                                                   0, 0, 1, 1, GDK_INTERP_NEAREST, 255);
851                 g_object_unref (emblem);
852         }
853         return retval;
854 }
855
856 static inline ThreePixbufs *
857 get_composite_icons (const gchar *icon_code,
858                      GdkPixbuf **pixbuf,
859                      GdkPixbuf **pixbuf_open,
860                      GdkPixbuf **pixbuf_close)
861 {
862         ThreePixbufs *retval;
863
864         if (!*pixbuf)
865                 *pixbuf = gdk_pixbuf_copy (modest_platform_get_icon (icon_code, FOLDER_ICON_SIZE));
866
867         if (!*pixbuf_open)
868                 *pixbuf_open = get_composite_pixbuf ("qgn_list_gene_fldr_exp",
869                                                      FOLDER_ICON_SIZE,
870                                                      *pixbuf);
871
872         if (!*pixbuf_close)
873                 *pixbuf_close = get_composite_pixbuf ("qgn_list_gene_fldr_clp",
874                                                       FOLDER_ICON_SIZE,
875                                                       *pixbuf);
876
877         retval = g_slice_new0 (ThreePixbufs);
878         if (*pixbuf)
879                 retval->pixbuf = g_object_ref (*pixbuf);
880         if (*pixbuf_open)
881                 retval->pixbuf_open = g_object_ref (*pixbuf_open);
882         if (*pixbuf_close)
883                 retval->pixbuf_close = g_object_ref (*pixbuf_close);
884
885         return retval;
886 }
887
888 static inline ThreePixbufs*
889 get_folder_icons (TnyFolderType type, GObject *instance)
890 {
891         static GdkPixbuf *inbox_pixbuf = NULL, *outbox_pixbuf = NULL,
892                 *junk_pixbuf = NULL, *sent_pixbuf = NULL,
893                 *trash_pixbuf = NULL, *draft_pixbuf = NULL,
894                 *normal_pixbuf = NULL, *anorm_pixbuf = NULL, *mmc_pixbuf = NULL,
895                 *ammc_pixbuf = NULL, *avirt_pixbuf = NULL;
896
897         static GdkPixbuf *inbox_pixbuf_open = NULL, *outbox_pixbuf_open = NULL,
898                 *junk_pixbuf_open = NULL, *sent_pixbuf_open = NULL,
899                 *trash_pixbuf_open = NULL, *draft_pixbuf_open = NULL,
900                 *normal_pixbuf_open = NULL, *anorm_pixbuf_open = NULL, *mmc_pixbuf_open = NULL,
901                 *ammc_pixbuf_open = NULL, *avirt_pixbuf_open = NULL;
902
903         static GdkPixbuf *inbox_pixbuf_close = NULL, *outbox_pixbuf_close = NULL,
904                 *junk_pixbuf_close = NULL, *sent_pixbuf_close = NULL,
905                 *trash_pixbuf_close = NULL, *draft_pixbuf_close = NULL,
906                 *normal_pixbuf_close = NULL, *anorm_pixbuf_close = NULL, *mmc_pixbuf_close = NULL,
907                 *ammc_pixbuf_close = NULL, *avirt_pixbuf_close = NULL;
908
909         ThreePixbufs *retval = NULL;
910
911         /* Sometimes an special folder is reported by the server as
912            NORMAL, like some versions of Dovecot */
913         if (type == TNY_FOLDER_TYPE_NORMAL ||
914             type == TNY_FOLDER_TYPE_UNKNOWN) {
915                 type = modest_tny_folder_guess_folder_type (TNY_FOLDER (instance));
916         }
917
918         /* It's not enough with check the folder type. We need to
919            ensure that we're not giving a special folder icon to a
920            normal folder with the same name than a special folder */
921         if (TNY_IS_FOLDER (instance) &&
922             get_cmp_pos (type, TNY_FOLDER (instance)) ==  4)
923                 type = TNY_FOLDER_TYPE_NORMAL;
924
925         /* Remote folders should not be treated as special folders */
926         if (TNY_IS_FOLDER_STORE (instance) &&
927             !TNY_IS_ACCOUNT (instance) &&
928             type != TNY_FOLDER_TYPE_INBOX &&
929             modest_tny_folder_store_is_remote (TNY_FOLDER_STORE (instance))) {
930 #ifdef MODEST_TOOLKIT_HILDON2
931                 return get_composite_icons (MODEST_FOLDER_ICON_ACCOUNT,
932                                             &anorm_pixbuf,
933                                             &anorm_pixbuf_open,
934                                             &anorm_pixbuf_close);
935 #else
936                 return get_composite_icons (MODEST_FOLDER_ICON_NORMAL,
937                                             &normal_pixbuf,
938                                             &normal_pixbuf_open,
939                                             &normal_pixbuf_close);
940 #endif
941         }
942
943         switch (type) {
944
945         case TNY_FOLDER_TYPE_INVALID:
946                 g_warning ("%s: BUG: TNY_FOLDER_TYPE_INVALID", __FUNCTION__);
947                 break;
948
949         case TNY_FOLDER_TYPE_ROOT:
950                 if (TNY_IS_ACCOUNT (instance)) {
951
952                         if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (instance))) {
953                                 retval = get_composite_icons (MODEST_FOLDER_ICON_LOCAL_FOLDERS,
954                                                               &avirt_pixbuf,
955                                                               &avirt_pixbuf_open,
956                                                               &avirt_pixbuf_close);
957                         } else {
958                                 const gchar *account_id = tny_account_get_id (TNY_ACCOUNT (instance));
959
960                                 if (!strcmp (account_id, MODEST_MMC_ACCOUNT_ID)) {
961                                         retval = get_composite_icons (MODEST_FOLDER_ICON_MMC,
962                                                                       &ammc_pixbuf,
963                                                                       &ammc_pixbuf_open,
964                                                                       &ammc_pixbuf_close);
965                                 } else {
966                                         retval = get_composite_icons (MODEST_FOLDER_ICON_ACCOUNT,
967                                                                       &anorm_pixbuf,
968                                                                       &anorm_pixbuf_open,
969                                                                       &anorm_pixbuf_close);
970                                 }
971                         }
972                 }
973                 break;
974         case TNY_FOLDER_TYPE_INBOX:
975                 retval = get_composite_icons (MODEST_FOLDER_ICON_INBOX,
976                                               &inbox_pixbuf,
977                                               &inbox_pixbuf_open,
978                                               &inbox_pixbuf_close);
979                 break;
980         case TNY_FOLDER_TYPE_OUTBOX:
981                 retval = get_composite_icons (MODEST_FOLDER_ICON_OUTBOX,
982                                               &outbox_pixbuf,
983                                               &outbox_pixbuf_open,
984                                               &outbox_pixbuf_close);
985                 break;
986         case TNY_FOLDER_TYPE_JUNK:
987                 retval = get_composite_icons (MODEST_FOLDER_ICON_JUNK,
988                                               &junk_pixbuf,
989                                               &junk_pixbuf_open,
990                                               &junk_pixbuf_close);
991                 break;
992         case TNY_FOLDER_TYPE_SENT:
993                 retval = get_composite_icons (MODEST_FOLDER_ICON_SENT,
994                                               &sent_pixbuf,
995                                               &sent_pixbuf_open,
996                                               &sent_pixbuf_close);
997                 break;
998         case TNY_FOLDER_TYPE_TRASH:
999                 retval = get_composite_icons (MODEST_FOLDER_ICON_TRASH,
1000                                               &trash_pixbuf,
1001                                               &trash_pixbuf_open,
1002                                               &trash_pixbuf_close);
1003                 break;
1004         case TNY_FOLDER_TYPE_DRAFTS:
1005                 retval = get_composite_icons (MODEST_FOLDER_ICON_DRAFTS,
1006                                               &draft_pixbuf,
1007                                               &draft_pixbuf_open,
1008                                               &draft_pixbuf_close);
1009                 break;
1010         case TNY_FOLDER_TYPE_ARCHIVE:
1011                 retval = get_composite_icons (MODEST_FOLDER_ICON_MMC_FOLDER,
1012                                               &mmc_pixbuf,
1013                                               &mmc_pixbuf_open,
1014                                               &mmc_pixbuf_close);
1015                 break;
1016         case TNY_FOLDER_TYPE_NORMAL:
1017         default:
1018                 /* Memory card folders could have an special icon */
1019                 if (modest_tny_folder_is_memory_card_folder (TNY_FOLDER (instance))) {
1020                         retval = get_composite_icons (MODEST_FOLDER_ICON_MMC_FOLDER,
1021                                                       &mmc_pixbuf,
1022                                                       &mmc_pixbuf_open,
1023                                                       &mmc_pixbuf_close);
1024                 } else {
1025                         retval = get_composite_icons (MODEST_FOLDER_ICON_NORMAL,
1026                                                       &normal_pixbuf,
1027                                                       &normal_pixbuf_open,
1028                                                       &normal_pixbuf_close);
1029                 }
1030                 break;
1031         }
1032
1033         return retval;
1034 }
1035
1036 static void
1037 free_pixbufs (ThreePixbufs *pixbufs)
1038 {
1039         if (pixbufs->pixbuf)
1040                 g_object_unref (pixbufs->pixbuf);
1041         if (pixbufs->pixbuf_open)
1042                 g_object_unref (pixbufs->pixbuf_open);
1043         if (pixbufs->pixbuf_close)
1044                 g_object_unref (pixbufs->pixbuf_close);
1045         g_slice_free (ThreePixbufs, pixbufs);
1046 }
1047
1048 static void
1049 icon_cell_data  (GtkTreeViewColumn *column,
1050                  GtkCellRenderer *renderer,
1051                  GtkTreeModel *tree_model,
1052                  GtkTreeIter *iter,
1053                  gpointer data)
1054 {
1055         GObject *rendobj = NULL, *instance = NULL;
1056         TnyFolderType type = TNY_FOLDER_TYPE_UNKNOWN;
1057         gboolean has_children;
1058         ThreePixbufs *pixbufs;
1059
1060         rendobj = (GObject *) renderer;
1061
1062         gtk_tree_model_get (tree_model, iter,
1063                             TYPE_COLUMN, &type,
1064                             INSTANCE_COLUMN, &instance,
1065                             -1);
1066
1067         if (!instance)
1068                 return;
1069
1070         has_children = gtk_tree_model_iter_has_child (tree_model, iter);
1071         pixbufs = get_folder_icons (type, instance);
1072         g_object_unref (instance);
1073
1074         /* Set pixbuf */
1075         g_object_set (rendobj, "pixbuf", pixbufs->pixbuf, NULL);
1076
1077         if (has_children) {
1078                 g_object_set (rendobj, "pixbuf-expander-open", pixbufs->pixbuf_open, NULL);
1079                 g_object_set (rendobj, "pixbuf-expander-closed", pixbufs->pixbuf_close, NULL);
1080         }
1081
1082         free_pixbufs (pixbufs);
1083 }
1084
1085 static void
1086 add_columns (GtkWidget *treeview)
1087 {
1088         GtkTreeViewColumn *column;
1089         GtkCellRenderer *renderer;
1090         GtkTreeSelection *sel;
1091         ModestFolderViewPrivate *priv;
1092
1093         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE(treeview);
1094
1095         /* Create column */
1096         column = gtk_tree_view_column_new ();
1097
1098         /* Set icon and text render function */
1099         renderer = gtk_cell_renderer_pixbuf_new();
1100 #ifdef MODEST_TOOLKIT_HILDON2
1101         g_object_set (renderer,
1102                       "xpad", MODEST_MARGIN_DEFAULT,
1103                       "ypad", MODEST_MARGIN_DEFAULT,
1104                       NULL);
1105 #endif
1106         gtk_tree_view_column_pack_start (column, renderer, FALSE);
1107         gtk_tree_view_column_set_cell_data_func(column, renderer,
1108                                                 icon_cell_data, treeview, NULL);
1109
1110         renderer = gtk_cell_renderer_text_new();
1111         g_object_set (renderer, 
1112 #ifdef MODEST_TOOLKIT_HILDON2
1113                       "ellipsize", PANGO_ELLIPSIZE_MIDDLE,
1114                       "ypad", MODEST_MARGIN_DEFAULT,
1115 #else
1116                       "ellipsize", PANGO_ELLIPSIZE_END,
1117 #endif
1118                       "ellipsize-set", TRUE, NULL);
1119         gtk_tree_view_column_pack_start (column, renderer, TRUE);
1120         gtk_tree_view_column_set_cell_data_func(column, renderer,
1121                                                 text_cell_data, treeview, NULL);
1122
1123         priv->messages_renderer = gtk_cell_renderer_text_new ();
1124         g_object_set (priv->messages_renderer, 
1125 #ifdef MODEST_TOOLKIT_HILDON2
1126                       "yalign", 0.0,
1127                       "ypad", MODEST_MARGIN_DEFAULT,
1128                       "xpad", MODEST_MARGIN_DOUBLE,
1129 #else
1130                       "scale", PANGO_SCALE_X_SMALL,
1131                       "scale-set", TRUE,
1132 #endif
1133                       "alignment", PANGO_ALIGN_RIGHT,
1134                       "align-set", TRUE,
1135                       "xalign", 1.0,
1136                       NULL);
1137         gtk_tree_view_column_pack_start (column, priv->messages_renderer, FALSE);
1138         gtk_tree_view_column_set_cell_data_func(column, priv->messages_renderer,
1139                                                 messages_cell_data, treeview, NULL);
1140
1141         /* Set selection mode */
1142         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW(treeview));
1143         gtk_tree_selection_set_mode (sel, GTK_SELECTION_SINGLE);
1144
1145         /* Set treeview appearance */
1146         gtk_tree_view_column_set_spacing (column, 2);
1147         gtk_tree_view_column_set_resizable (column, TRUE);
1148         gtk_tree_view_column_set_fixed_width (column, TRUE);
1149         gtk_tree_view_set_headers_clickable (GTK_TREE_VIEW(treeview), FALSE);
1150         gtk_tree_view_set_enable_search (GTK_TREE_VIEW(treeview), FALSE);
1151
1152         /* Add column */
1153         gtk_tree_view_append_column (GTK_TREE_VIEW(treeview),column);
1154 }
1155
1156 static void
1157 modest_folder_view_init (ModestFolderView *obj)
1158 {
1159         ModestFolderViewPrivate *priv;
1160         ModestConf *conf;
1161
1162         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE(obj);
1163
1164         priv->timer_expander = 0;
1165         priv->account_store  = NULL;
1166         priv->query          = NULL;
1167         priv->style          = MODEST_FOLDER_VIEW_STYLE_SHOW_ALL;
1168         priv->cur_folder_store   = NULL;
1169         priv->visible_account_id = NULL;
1170         priv->mailbox = NULL;
1171         priv->folder_to_select = NULL;
1172         priv->outbox_deleted_handler = 0;
1173         priv->reexpand = TRUE;
1174
1175         /* Initialize the local account name */
1176         conf = modest_runtime_get_conf();
1177         priv->local_account_name = modest_conf_get_string (conf, MODEST_CONF_DEVICE_NAME, NULL);
1178
1179         /* Init email clipboard */
1180         priv->clipboard = modest_runtime_get_email_clipboard ();
1181         priv->hidding_ids = NULL;
1182         priv->n_selected = 0;
1183         priv->filter = MODEST_FOLDER_VIEW_FILTER_NONE;
1184         priv->reselect = FALSE;
1185         priv->show_non_move = TRUE;
1186         priv->list_to_move = NULL;
1187
1188         /* Build treeview */
1189         add_columns (GTK_WIDGET (obj));
1190
1191         /* Setup drag and drop */
1192         setup_drag_and_drop (GTK_TREE_VIEW(obj));
1193
1194         /* Connect signals */
1195         g_signal_connect (G_OBJECT (obj),
1196                           "key-press-event",
1197                           G_CALLBACK (on_key_pressed), NULL);
1198
1199         priv->display_name_changed_signal =
1200                 g_signal_connect (modest_runtime_get_account_mgr (),
1201                                   "display_name_changed",
1202                                   G_CALLBACK (on_display_name_changed),
1203                                   obj);
1204
1205         /*
1206          * Track changes in the local account name (in the device it
1207          * will be the device name)
1208          */
1209         priv->conf_key_signal = g_signal_connect (G_OBJECT(conf),
1210                                                   "key_changed",
1211                                                   G_CALLBACK(on_configuration_key_changed),
1212                                                   obj);
1213
1214         update_style (obj);
1215         g_signal_connect (G_OBJECT (obj), "notify::style", G_CALLBACK (on_notify_style), (gpointer) obj);
1216
1217
1218 }
1219
1220 static void
1221 tny_account_store_view_init (gpointer g, gpointer iface_data)
1222 {
1223         TnyAccountStoreViewIface *klass = (TnyAccountStoreViewIface *)g;
1224
1225         klass->set_account_store = modest_folder_view_set_account_store;
1226 }
1227
1228 static void
1229 modest_folder_view_finalize (GObject *obj)
1230 {
1231         ModestFolderViewPrivate *priv;
1232         GtkTreeSelection    *sel;
1233         TnyAccount *local_account;
1234
1235         g_return_if_fail (obj);
1236
1237         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE(obj);
1238
1239         if (priv->timer_expander != 0) {
1240                 g_source_remove (priv->timer_expander);
1241                 priv->timer_expander = 0;
1242         }
1243
1244         local_account = (TnyAccount *)
1245                 modest_tny_account_store_get_local_folders_account (modest_runtime_get_account_store ());
1246         if (local_account) {
1247                 if (g_signal_handler_is_connected (local_account,
1248                                                    priv->outbox_deleted_handler))
1249                         g_signal_handler_disconnect (local_account,
1250                                                      priv->outbox_deleted_handler);
1251                 g_object_unref (local_account);
1252         }
1253
1254         if (priv->account_store) {
1255                 g_signal_handler_disconnect (G_OBJECT(priv->account_store),
1256                                              priv->account_inserted_signal);
1257                 g_signal_handler_disconnect (G_OBJECT(priv->account_store),
1258                                              priv->account_removed_signal);
1259                 g_signal_handler_disconnect (G_OBJECT(priv->account_store),
1260                                              priv->account_changed_signal);
1261                 g_object_unref (G_OBJECT(priv->account_store));
1262                 priv->account_store = NULL;
1263         }
1264
1265         if (g_signal_handler_is_connected (modest_runtime_get_account_mgr (), 
1266                                            priv->display_name_changed_signal)) {
1267                 g_signal_handler_disconnect (modest_runtime_get_account_mgr (),
1268                                              priv->display_name_changed_signal);
1269                 priv->display_name_changed_signal = 0;
1270         }
1271
1272         if (priv->query) {
1273                 g_object_unref (G_OBJECT (priv->query));
1274                 priv->query = NULL;
1275         }
1276
1277         if (priv->folder_to_select) {
1278                 g_object_unref (G_OBJECT(priv->folder_to_select));
1279                 priv->folder_to_select = NULL;
1280         }
1281
1282         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW(obj));
1283         if (sel)
1284                 g_signal_handler_disconnect (G_OBJECT(sel), priv->changed_signal);
1285
1286         g_free (priv->local_account_name);
1287         g_free (priv->visible_account_id);
1288         g_free (priv->mailbox);
1289
1290         if (priv->conf_key_signal) {
1291                 g_signal_handler_disconnect (modest_runtime_get_conf (),
1292                                              priv->conf_key_signal);
1293                 priv->conf_key_signal = 0;
1294         }
1295
1296         if (priv->cur_folder_store) {
1297                 g_object_unref (priv->cur_folder_store);
1298                 priv->cur_folder_store = NULL;
1299         }
1300
1301         if (priv->list_to_move) {
1302                 g_object_unref (priv->list_to_move);
1303                 priv->list_to_move = NULL;
1304         }
1305
1306         /* Clear hidding array created by cut operation */
1307         _clear_hidding_filter (MODEST_FOLDER_VIEW (obj));
1308
1309         G_OBJECT_CLASS(parent_class)->finalize (obj);
1310 }
1311
1312
1313 static void
1314 modest_folder_view_set_account_store (TnyAccountStoreView *self, TnyAccountStore *account_store)
1315 {
1316         ModestFolderViewPrivate *priv;
1317         TnyDevice *device;
1318
1319         g_return_if_fail (MODEST_IS_FOLDER_VIEW (self));
1320         g_return_if_fail (TNY_IS_ACCOUNT_STORE (account_store));
1321
1322         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (self);
1323         device = tny_account_store_get_device (account_store);
1324
1325         if (G_UNLIKELY (priv->account_store)) {
1326
1327                 if (g_signal_handler_is_connected (G_OBJECT (priv->account_store),
1328                                                    priv->account_inserted_signal))
1329                         g_signal_handler_disconnect (G_OBJECT (priv->account_store),
1330                                                      priv->account_inserted_signal);
1331                 if (g_signal_handler_is_connected (G_OBJECT (priv->account_store),
1332                                                    priv->account_removed_signal))
1333                         g_signal_handler_disconnect (G_OBJECT (priv->account_store),
1334                                                      priv->account_removed_signal);
1335                 if (g_signal_handler_is_connected (G_OBJECT (priv->account_store),
1336                                                    priv->account_changed_signal))
1337                         g_signal_handler_disconnect (G_OBJECT (priv->account_store),
1338                                                      priv->account_changed_signal);
1339                 g_object_unref (G_OBJECT (priv->account_store));
1340         }
1341
1342         priv->account_store = g_object_ref (G_OBJECT (account_store));
1343
1344         priv->account_removed_signal =
1345                 g_signal_connect (G_OBJECT(account_store), "account_removed",
1346                                   G_CALLBACK (on_account_removed), self);
1347
1348         priv->account_inserted_signal =
1349                 g_signal_connect (G_OBJECT(account_store), "account_inserted",
1350                                   G_CALLBACK (on_account_inserted), self);
1351
1352         priv->account_changed_signal =
1353                 g_signal_connect (G_OBJECT(account_store), "account_changed",
1354                                   G_CALLBACK (on_account_changed), self);
1355
1356         modest_folder_view_update_model (MODEST_FOLDER_VIEW (self), account_store);
1357         priv->reselect = FALSE;
1358         modest_folder_view_select_first_inbox_or_local (MODEST_FOLDER_VIEW (self));
1359
1360         g_object_unref (G_OBJECT (device));
1361 }
1362
1363 static void
1364 on_outbox_deleted_cb (ModestTnyLocalFoldersAccount *local_account,
1365                       gpointer user_data)
1366 {
1367         ModestFolderView *self;
1368         GtkTreeModel *model, *filter_model;
1369         TnyFolder *outbox;
1370
1371         self = MODEST_FOLDER_VIEW (user_data);
1372
1373         if (!get_inner_models (self, &filter_model, NULL, &model))
1374                 return;
1375
1376         /* Remove outbox from model */
1377         outbox = modest_tny_local_folders_account_get_merged_outbox (local_account);
1378         tny_list_remove (TNY_LIST (model), G_OBJECT (outbox));
1379         g_object_unref (outbox);
1380
1381         /* Refilter view */
1382         gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (filter_model));
1383 }
1384
1385 static void
1386 on_account_inserted (TnyAccountStore *account_store,
1387                      TnyAccount *account,
1388                      gpointer user_data)
1389 {
1390         ModestFolderViewPrivate *priv;
1391         GtkTreeModel *model, *filter_model;
1392
1393         /* Ignore transport account insertions, we're not showing them
1394            in the folder view */
1395         if (TNY_IS_TRANSPORT_ACCOUNT (account))
1396                 return;
1397
1398         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (user_data);
1399
1400
1401         /* If we're adding a new account, and there is no previous
1402            one, we need to select the visible server account */
1403         if (priv->style == MODEST_FOLDER_VIEW_STYLE_SHOW_ONE &&
1404             !priv->visible_account_id)
1405                 modest_widget_memory_restore (modest_runtime_get_conf(),
1406                                               G_OBJECT (user_data),
1407                                               MODEST_CONF_FOLDER_VIEW_KEY);
1408
1409
1410         /* Get models */
1411         if (!get_inner_models (MODEST_FOLDER_VIEW (user_data),
1412                                &filter_model, NULL, &model))
1413                 return;
1414
1415         /* Insert the account in the model */
1416         tny_list_append (TNY_LIST (model), G_OBJECT (account));
1417
1418         /* When the model is a list store (plain representation) the
1419            outbox is not a child of any account so we have to manually
1420            delete it because removing the local folders account won't
1421            delete it (because tny_folder_get_account() is not defined
1422            for a merge folder */
1423         if (TNY_IS_GTK_FOLDER_LIST_STORE (model) &&
1424             MODEST_IS_TNY_LOCAL_FOLDERS_ACCOUNT (account)) {
1425
1426                 priv->outbox_deleted_handler =
1427                         g_signal_connect (account,
1428                                           "outbox-deleted",
1429                                           G_CALLBACK (on_outbox_deleted_cb),
1430                                           user_data);
1431         }
1432
1433         /* Refilter the model */
1434         gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (filter_model));
1435 }
1436
1437
1438 static gboolean
1439 same_account_selected (ModestFolderView *self,
1440                        TnyAccount *account)
1441 {
1442         ModestFolderViewPrivate *priv;
1443         gboolean same_account = FALSE;
1444
1445         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (self);
1446
1447         if (priv->cur_folder_store) {
1448                 TnyAccount *selected_folder_account = NULL;
1449
1450                 if (TNY_IS_FOLDER (priv->cur_folder_store)) {
1451                         selected_folder_account =
1452                                 modest_tny_folder_get_account (TNY_FOLDER (priv->cur_folder_store));
1453                 } else {
1454                         selected_folder_account =
1455                                 TNY_ACCOUNT (g_object_ref (priv->cur_folder_store));
1456                 }
1457
1458                 if (selected_folder_account == account)
1459                         same_account = TRUE;
1460
1461                 g_object_unref (selected_folder_account);
1462         }
1463         return same_account;
1464 }
1465
1466 /**
1467  *
1468  * Selects the first inbox or the local account in an idle
1469  */
1470 static gboolean
1471 on_idle_select_first_inbox_or_local (gpointer user_data)
1472 {
1473         ModestFolderView *self = MODEST_FOLDER_VIEW (user_data);
1474
1475         gdk_threads_enter ();
1476         modest_folder_view_select_first_inbox_or_local (self);
1477         gdk_threads_leave ();
1478
1479         return FALSE;
1480 }
1481
1482 static void
1483 on_account_changed (TnyAccountStore *account_store,
1484                     TnyAccount *tny_account,
1485                     gpointer user_data)
1486 {
1487         ModestFolderView *self;
1488         ModestFolderViewPrivate *priv;
1489         GtkTreeModel *model, *filter_model;
1490         GtkTreeSelection *sel;
1491         gboolean same_account;
1492
1493         /* Ignore transport account insertions, we're not showing them
1494            in the folder view */
1495         if (TNY_IS_TRANSPORT_ACCOUNT (tny_account))
1496                 return;
1497
1498         self = MODEST_FOLDER_VIEW (user_data);
1499         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (user_data);
1500
1501         /* Get the inner model */
1502         if (!get_inner_models (MODEST_FOLDER_VIEW (user_data),
1503                                &filter_model, NULL, &model))
1504                 return;
1505
1506         filter_model = gtk_tree_view_get_model (GTK_TREE_VIEW (user_data));
1507
1508         /* Invalidate the cur_folder_store only if the selected folder
1509            belongs to the account that is being removed */
1510         same_account = same_account_selected (self, tny_account);
1511         if (same_account) {
1512                 sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
1513                 gtk_tree_selection_unselect_all (sel);
1514         }
1515
1516         /* Remove the account from the model */
1517         tny_list_remove (TNY_LIST (model), G_OBJECT (tny_account));
1518
1519         /* Insert the account in the model */
1520         tny_list_append (TNY_LIST (model), G_OBJECT (tny_account));
1521
1522         /* Refilter the model */
1523         gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (filter_model));
1524
1525         /* Select the first INBOX if the currently selected folder
1526            belongs to the account that is being deleted */
1527         if (same_account && !MODEST_IS_TNY_LOCAL_FOLDERS_ACCOUNT (tny_account))
1528                 g_idle_add (on_idle_select_first_inbox_or_local, self);
1529 }
1530
1531 static void
1532 on_account_removed (TnyAccountStore *account_store,
1533                     TnyAccount *account,
1534                     gpointer user_data)
1535 {
1536         ModestFolderView *self = NULL;
1537         ModestFolderViewPrivate *priv;
1538         GtkTreeModel *model, *filter_model;
1539         GtkTreeSelection *sel = NULL;
1540         gboolean same_account = FALSE;
1541
1542         /* Ignore transport account removals, we're not showing them
1543            in the folder view */
1544         if (TNY_IS_TRANSPORT_ACCOUNT (account))
1545                 return;
1546
1547         if (!MODEST_IS_FOLDER_VIEW(user_data)) {
1548                 g_warning ("BUG: %s: not a valid folder view", __FUNCTION__);
1549                 return;
1550         }
1551
1552         self = MODEST_FOLDER_VIEW (user_data);
1553         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (self);
1554
1555         /* Invalidate the cur_folder_store only if the selected folder
1556            belongs to the account that is being removed */
1557         same_account = same_account_selected (self, account);
1558         if (same_account) {
1559                 sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
1560                 gtk_tree_selection_unselect_all (sel);
1561         }
1562
1563         /* Invalidate row to select only if the folder to select
1564            belongs to the account that is being removed*/
1565         if (priv->folder_to_select) {
1566                 TnyAccount *folder_to_select_account = NULL;
1567
1568                 folder_to_select_account = tny_folder_get_account (priv->folder_to_select);
1569                 if (folder_to_select_account == account) {
1570                         modest_folder_view_disable_next_folder_selection (self);
1571                         g_object_unref (priv->folder_to_select);
1572                         priv->folder_to_select = NULL;
1573                 }
1574                 g_object_unref (folder_to_select_account);
1575         }
1576
1577         if (!get_inner_models (MODEST_FOLDER_VIEW (user_data),
1578                                &filter_model, NULL, &model))
1579                 return;
1580
1581         /* Disconnect the signal handler */
1582         if (TNY_IS_GTK_FOLDER_LIST_STORE (model) &&
1583             MODEST_IS_TNY_LOCAL_FOLDERS_ACCOUNT (account)) {
1584                 if (g_signal_handler_is_connected (account,
1585                                                    priv->outbox_deleted_handler))
1586                         g_signal_handler_disconnect (account,
1587                                                      priv->outbox_deleted_handler);
1588         }
1589
1590         /* Remove the account from the model */
1591         tny_list_remove (TNY_LIST (model), G_OBJECT (account));
1592
1593         /* If the removed account is the currently viewed one then
1594            clear the configuration value. The new visible account will be the default account */
1595         if (priv->visible_account_id &&
1596             !strcmp (priv->visible_account_id, tny_account_get_id (account))) {
1597
1598                 /* Clear the current visible account_id */
1599                 modest_folder_view_set_account_id_of_visible_server_account (self, NULL);
1600                 modest_folder_view_set_mailbox (self, NULL);
1601
1602                 /* Call the restore method, this will set the new visible account */
1603                 modest_widget_memory_restore (modest_runtime_get_conf(), G_OBJECT(self),
1604                                               MODEST_CONF_FOLDER_VIEW_KEY);
1605         }
1606
1607         /* Refilter the model */
1608         gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (filter_model));
1609
1610         /* Select the first INBOX if the currently selected folder
1611            belongs to the account that is being deleted */
1612         if (same_account)
1613                 g_idle_add (on_idle_select_first_inbox_or_local, self);
1614 }
1615
1616 void
1617 modest_folder_view_set_title (ModestFolderView *self, const gchar *title)
1618 {
1619         GtkTreeViewColumn *col;
1620
1621         g_return_if_fail (self && MODEST_IS_FOLDER_VIEW(self));
1622
1623         col = gtk_tree_view_get_column (GTK_TREE_VIEW(self), 0);
1624         if (!col) {
1625                 g_printerr ("modest: failed get column for title\n");
1626                 return;
1627         }
1628
1629         gtk_tree_view_column_set_title (col, title);
1630         gtk_tree_view_set_headers_visible (GTK_TREE_VIEW(self),
1631                                            title != NULL);
1632 }
1633
1634 static gboolean
1635 modest_folder_view_on_map (ModestFolderView *self,
1636                            GdkEventExpose *event,
1637                            gpointer data)
1638 {
1639         ModestFolderViewPrivate *priv;
1640
1641         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (self);
1642
1643         /* This won't happen often */
1644         if (G_UNLIKELY (priv->reselect)) {
1645                 /* Select the first inbox or the local account if not found */
1646
1647                 /* TODO: this could cause a lock at startup, so we
1648                    comment it for the moment. We know that this will
1649                    be a bug, because the INBOX is not selected, but we
1650                    need to rewrite some parts of Modest to avoid the
1651                    deathlock situation */
1652                 /* TODO: check if this is still the case */
1653                 priv->reselect = FALSE;
1654                 modest_folder_view_select_first_inbox_or_local (self);
1655                 /* Notify the display name observers */
1656                 g_signal_emit (G_OBJECT(self),
1657                                signals[FOLDER_DISPLAY_NAME_CHANGED_SIGNAL], 0,
1658                                NULL);
1659         }
1660
1661         if (priv->reexpand) {
1662                 expand_root_items (self);
1663                 priv->reexpand = FALSE;
1664         }
1665
1666         return FALSE;
1667 }
1668
1669 GtkWidget*
1670 modest_folder_view_new (TnyFolderStoreQuery *query)
1671 {
1672         GObject *self;
1673         ModestFolderViewPrivate *priv;
1674         GtkTreeSelection *sel;
1675
1676         self = G_OBJECT (g_object_new (MODEST_TYPE_FOLDER_VIEW, 
1677 #ifdef MODEST_TOOLKIT_HILDON2
1678                                        "hildon-ui-mode", HILDON_UI_MODE_NORMAL,
1679 #endif
1680                                        NULL));
1681         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (self);
1682
1683         if (query)
1684                 priv->query = g_object_ref (query);
1685
1686         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
1687         priv->changed_signal = g_signal_connect (sel, "changed",
1688                                                  G_CALLBACK (on_selection_changed), self);
1689
1690         g_signal_connect (self, "row-activated", G_CALLBACK (on_row_activated), self);
1691
1692         g_signal_connect (self, "expose-event", G_CALLBACK (modest_folder_view_on_map), NULL);
1693
1694         return GTK_WIDGET(self);
1695 }
1696
1697 /* this feels dirty; any other way to expand all the root items? */
1698 static void
1699 expand_root_items (ModestFolderView *self)
1700 {
1701         GtkTreePath *path;
1702         GtkTreeModel *model;
1703         GtkTreeIter iter;
1704
1705         model = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
1706         path = gtk_tree_path_new_first ();
1707
1708         /* all folders should have child items, so.. */
1709         do {
1710                 gtk_tree_view_expand_row (GTK_TREE_VIEW(self), path, FALSE);
1711                 gtk_tree_path_next (path);
1712         } while (gtk_tree_model_get_iter (model, &iter, path));
1713
1714         gtk_tree_path_free (path);
1715 }
1716
1717 static gboolean
1718 is_parent_of (TnyFolder *a, TnyFolder *b)
1719 {
1720         const gchar *a_id;
1721         gboolean retval = FALSE;
1722
1723         a_id = tny_folder_get_id (a);
1724         if (a_id) {
1725                 gchar *string_to_match;
1726                 const gchar *b_id;
1727
1728                 string_to_match = g_strconcat (a_id, "/", NULL);
1729                 b_id = tny_folder_get_id (b);
1730                 retval = g_str_has_prefix (b_id, string_to_match);
1731                 g_free (string_to_match);
1732         }
1733         
1734         return retval;
1735 }
1736
1737 typedef struct _ForeachFolderInfo {
1738         gchar *needle;
1739         gboolean found;
1740 } ForeachFolderInfo;
1741
1742 static gboolean 
1743 foreach_folder_with_id (GtkTreeModel *model,
1744                         GtkTreePath *path,
1745                         GtkTreeIter *iter,
1746                         gpointer data)
1747 {
1748         ForeachFolderInfo *info;
1749         GObject *instance;
1750
1751         info = (ForeachFolderInfo *) data;
1752         gtk_tree_model_get (model, iter,
1753                             INSTANCE_COLUMN, &instance,
1754                             -1);
1755
1756         if (TNY_IS_FOLDER (instance)) {
1757                 const gchar *id;
1758                 gchar *collate;
1759                 id = tny_folder_get_id (TNY_FOLDER (instance));
1760                 if (id) {
1761                         collate = g_utf8_collate_key (id, -1);
1762                         info->found = !strcmp (info->needle, collate);
1763                         g_free (collate);
1764                 }
1765         }
1766
1767         return info->found;
1768         
1769 }
1770
1771
1772 static gboolean
1773 has_folder_with_id (ModestFolderView *self, const gchar *id)
1774 {
1775         GtkTreeModel *model;
1776         ForeachFolderInfo info = {NULL, FALSE};
1777
1778         model = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
1779         info.needle = g_utf8_collate_key (id, -1);
1780         
1781         gtk_tree_model_foreach (model, foreach_folder_with_id, &info);
1782         g_free (info.needle);
1783
1784         return info.found;
1785 }
1786
1787 static gboolean
1788 has_child_with_name_of (ModestFolderView *self, TnyFolder *a, TnyFolder *b)
1789 {
1790         const gchar *a_id;
1791         gboolean retval = FALSE;
1792
1793         a_id = tny_folder_get_id (a);
1794         if (a_id) {
1795                 const gchar *b_id;
1796                 b_id = tny_folder_get_id (b);
1797                 
1798                 if (b_id) {
1799                         const gchar *last_bar;
1800                         gchar *string_to_match;
1801                         last_bar = g_strrstr (b_id, "/");
1802                         if (last_bar)
1803                                 last_bar++;
1804                         else
1805                                 last_bar = b_id;
1806                         string_to_match = g_strconcat (a_id, "/", last_bar, NULL);
1807                         retval = has_folder_with_id (self, string_to_match);
1808                         g_free (string_to_match);
1809                 }
1810         }
1811
1812         return retval;
1813 }
1814
1815 static gboolean
1816 check_move_to_this_folder_valid (ModestFolderView *self, TnyFolder *folder)
1817 {
1818         ModestFolderViewPrivate *priv;
1819         TnyIterator *iterator;
1820         gboolean retval = TRUE;
1821
1822         g_return_val_if_fail (MODEST_IS_FOLDER_VIEW (self), FALSE);
1823         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (self);
1824
1825         for (iterator = tny_list_create_iterator (priv->list_to_move);
1826              retval && !tny_iterator_is_done (iterator);
1827              tny_iterator_next (iterator)) {
1828                 GObject *instance;
1829                 instance = tny_iterator_get_current (iterator);
1830                 if (instance == (GObject *) folder) {
1831                         retval = FALSE;
1832                 } else if (TNY_IS_FOLDER (instance)) {
1833                         retval = !is_parent_of (TNY_FOLDER (instance), folder);
1834                         if (retval) {
1835                                 retval = !has_child_with_name_of (self, folder, TNY_FOLDER (instance));
1836                         }
1837                 }
1838                 g_object_unref (instance);
1839         }
1840         g_object_unref (iterator);
1841
1842         return retval;
1843 }
1844
1845
1846 /*
1847  * We use this function to implement the
1848  * MODEST_FOLDER_VIEW_STYLE_SHOW_ONE style. We only show the default
1849  * account in this case, and the local folders.
1850  */
1851 static gboolean
1852 filter_row (GtkTreeModel *model, GtkTreeIter *iter, gpointer data)
1853 {
1854         ModestFolderViewPrivate *priv;
1855         gboolean retval = TRUE;
1856         TnyFolderType type = TNY_FOLDER_TYPE_UNKNOWN;
1857         GObject *instance = NULL;
1858         const gchar *id = NULL;
1859         guint i;
1860         gboolean found = FALSE;
1861         gboolean cleared = FALSE;
1862         ModestTnyFolderRules rules = 0;
1863         gchar *fname;
1864
1865         g_return_val_if_fail (MODEST_IS_FOLDER_VIEW (data), FALSE);
1866         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (data);
1867
1868         gtk_tree_model_get (model, iter,
1869                             NAME_COLUMN, &fname,
1870                             TYPE_COLUMN, &type,
1871                             INSTANCE_COLUMN, &instance,
1872                             -1);
1873
1874         /* Do not show if there is no instance, this could indeed
1875            happen when the model is being modified while it's being
1876            drawn. This could occur for example when moving folders
1877            using drag&drop */
1878         if (!instance) {
1879                 g_free (fname);
1880                 return FALSE;
1881         }
1882
1883         if (TNY_IS_ACCOUNT (instance)) {
1884                 TnyAccount *acc = TNY_ACCOUNT (instance);
1885                 const gchar *account_id = tny_account_get_id (acc);
1886
1887                 /* If it isn't a special folder,
1888                  * don't show it unless it is the visible account: */
1889                 if (priv->style == MODEST_FOLDER_VIEW_STYLE_SHOW_ONE &&
1890                     !modest_tny_account_is_virtual_local_folders (acc) &&
1891                     strcmp (account_id, MODEST_MMC_ACCOUNT_ID)) {
1892
1893                         /* Show only the visible account id */
1894                         if (priv->visible_account_id) {
1895                                 if (strcmp (account_id, priv->visible_account_id))
1896                                         retval = FALSE;
1897                         } else {
1898                                 retval = FALSE;
1899                         }
1900                 }
1901
1902                 /* Never show these to the user. They are merged into one folder
1903                  * in the local-folders account instead: */
1904                 if (retval && MODEST_IS_TNY_OUTBOX_ACCOUNT (acc))
1905                         retval = FALSE;
1906         } else {
1907                 if (priv->style == MODEST_FOLDER_VIEW_STYLE_SHOW_ONE) {
1908                         /* Only show special folders for current account if needed */
1909                         if (TNY_IS_FOLDER (instance) && !TNY_IS_MERGE_FOLDER (instance)) {
1910                                 TnyAccount *account;
1911
1912                                 account = tny_folder_get_account (TNY_FOLDER (instance));
1913
1914                                 if (TNY_IS_ACCOUNT (account)) {
1915                                         const gchar *account_id = tny_account_get_id (account);
1916
1917                                         if (!modest_tny_account_is_virtual_local_folders (account) &&
1918                                             strcmp (account_id, MODEST_MMC_ACCOUNT_ID)) {
1919                                                 /* Show only the visible account id */
1920                                                 if (priv->visible_account_id) {
1921                                                   if (strcmp (account_id, priv->visible_account_id)) {
1922                                                           retval = FALSE;
1923                                                   } else if (priv->mailbox) {
1924                                                           /* Filter mailboxes */
1925                                                           if (!g_str_has_prefix (fname, priv->mailbox)) {
1926                                                                   retval = FALSE;
1927                                                           } else if (!strcmp (fname, priv->mailbox)) {
1928                                                                   /* Hide mailbox parent */
1929                                                                   retval = FALSE;
1930                                                           }
1931                                                   }
1932                                                 }
1933                                         }
1934                                                 g_object_unref (account);
1935                                 }
1936                         }
1937
1938                 }
1939         }
1940
1941         /* Check hiding (if necessary) */
1942         cleared = modest_email_clipboard_cleared (priv->clipboard);
1943         if ((retval) && (!cleared) && (TNY_IS_FOLDER (instance))) {
1944                 id = tny_folder_get_id (TNY_FOLDER(instance));
1945                 if (priv->hidding_ids != NULL)
1946                         for (i=0; i < priv->n_selected && !found; i++)
1947                                 if (priv->hidding_ids[i] != NULL && id != NULL)
1948                                         found = (!strcmp (priv->hidding_ids[i], id));
1949
1950                 retval = !found;
1951         }
1952
1953         /* If this is a move to dialog, hide Sent, Outbox and Drafts
1954         folder as no message can be move there according to UI specs */
1955         if (retval && !priv->show_non_move) {
1956                 if (priv->list_to_move && 
1957                     tny_list_get_length (priv->list_to_move) > 0 &&
1958                     TNY_IS_FOLDER (instance)) {
1959                         retval = check_move_to_this_folder_valid (MODEST_FOLDER_VIEW (data), TNY_FOLDER (instance));
1960                 }
1961                 if (retval && TNY_IS_FOLDER (instance) && 
1962                     modest_tny_folder_is_local_folder (TNY_FOLDER (instance))) {
1963                         switch (type) {
1964                         case TNY_FOLDER_TYPE_OUTBOX:
1965                         case TNY_FOLDER_TYPE_SENT:
1966                         case TNY_FOLDER_TYPE_DRAFTS:
1967                                 retval = FALSE;
1968                                 break;
1969                         case TNY_FOLDER_TYPE_UNKNOWN:
1970                         case TNY_FOLDER_TYPE_NORMAL:
1971                                 type = modest_tny_folder_guess_folder_type(TNY_FOLDER(instance));
1972                                 if (type == TNY_FOLDER_TYPE_INVALID)
1973                                         g_warning ("%s: BUG: TNY_FOLDER_TYPE_INVALID", __FUNCTION__);
1974                                 
1975                                 if (type == TNY_FOLDER_TYPE_OUTBOX ||
1976                                     type == TNY_FOLDER_TYPE_SENT
1977                                     || type == TNY_FOLDER_TYPE_DRAFTS)
1978                                         retval = FALSE;
1979                                 break;
1980                         default:
1981                                 break;
1982                         }
1983                 }
1984         }
1985
1986         /* apply special filters */
1987         if (retval && (priv->filter & MODEST_FOLDER_VIEW_FILTER_HIDE_ACCOUNTS)) {
1988                 if (TNY_IS_ACCOUNT (instance))
1989                         return FALSE;
1990         }
1991
1992         if (retval && (priv->filter & MODEST_FOLDER_VIEW_FILTER_HIDE_FOLDERS)) {
1993                 if (TNY_IS_FOLDER (instance))
1994                         return FALSE;
1995         }
1996
1997         if (retval && (priv->filter & MODEST_FOLDER_VIEW_FILTER_HIDE_LOCAL_FOLDERS)) {
1998                 if (!modest_tny_folder_store_is_remote (TNY_FOLDER_STORE (instance))) {
1999                         return FALSE;
2000                 }
2001         }
2002
2003         if (retval && (priv->filter & MODEST_FOLDER_VIEW_FILTER_SHOW_ONLY_MAILBOXES)) {
2004                 /* A mailbox is a fake folder with an @ in the middle of the name */
2005                 if (!TNY_IS_FOLDER (instance) ||
2006                     !(tny_folder_get_caps (TNY_FOLDER (instance)) & TNY_FOLDER_CAPS_NOSELECT)) {
2007                         return FALSE;
2008                 } else {
2009                         const gchar *folder_name;
2010                         folder_name = tny_folder_get_name (TNY_FOLDER (instance));
2011                         if (!folder_name || strchr (folder_name, '@') == NULL)
2012                                 return FALSE;
2013                 }
2014                 
2015         }
2016
2017         if (retval && (priv->filter & MODEST_FOLDER_VIEW_FILTER_CAN_HAVE_FOLDERS)) {
2018                 if (TNY_IS_FOLDER (instance)) {
2019                         /* Check folder rules */
2020                         ModestTnyFolderRules rules;
2021
2022                         rules = modest_tny_folder_get_rules (TNY_FOLDER (instance));
2023                         retval = !(rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE);
2024                 } else if (TNY_IS_ACCOUNT (instance)) {
2025                         if (modest_tny_folder_store_is_remote (TNY_FOLDER_STORE (instance))) {
2026                                 retval = FALSE;
2027                         } else {
2028                                 retval = TRUE;
2029                         }
2030                 }
2031         }
2032
2033         if (retval && (priv->filter & MODEST_FOLDER_VIEW_FILTER_HIDE_MANDATORY_FOLDERS)) {
2034                 if (TNY_IS_FOLDER (instance)) {
2035                         TnyFolderType guess_type;
2036
2037                         if (TNY_FOLDER_TYPE_NORMAL) {
2038                                 guess_type = modest_tny_folder_guess_folder_type (TNY_FOLDER (instance));
2039                         } else {
2040                                 guess_type = type;
2041                         }
2042
2043                         switch (type) {
2044                         case TNY_FOLDER_TYPE_OUTBOX:
2045                         case TNY_FOLDER_TYPE_SENT:
2046                         case TNY_FOLDER_TYPE_DRAFTS:
2047                         case TNY_FOLDER_TYPE_ARCHIVE:
2048                         case TNY_FOLDER_TYPE_INBOX:
2049                                 retval = FALSE;
2050                                 break;
2051                         case TNY_FOLDER_TYPE_UNKNOWN:
2052                         case TNY_FOLDER_TYPE_NORMAL:
2053                                 break;
2054                         default:
2055                                 break;
2056                         }
2057
2058                 } else if (TNY_IS_ACCOUNT (instance)) {
2059                         retval = FALSE;
2060                 }
2061         }
2062
2063         if (retval && TNY_IS_FOLDER (instance)) {
2064                 rules = modest_tny_folder_get_rules (TNY_FOLDER (instance));
2065         }
2066
2067         if (retval && (priv->filter & MODEST_FOLDER_VIEW_FILTER_DELETABLE)) {
2068                 if (TNY_IS_FOLDER (instance)) {
2069                         retval = !(rules & MODEST_FOLDER_RULES_FOLDER_NON_DELETABLE);
2070                 } else if (TNY_IS_ACCOUNT (instance)) {
2071                         retval = FALSE;
2072                 }
2073         }
2074
2075         if (retval && (priv->filter & MODEST_FOLDER_VIEW_FILTER_RENAMEABLE)) {
2076                 if (TNY_IS_FOLDER (instance)) {
2077                         retval = !(rules & MODEST_FOLDER_RULES_FOLDER_NON_RENAMEABLE);
2078                 } else if (TNY_IS_ACCOUNT (instance)) {
2079                         retval = FALSE;
2080                 }
2081         }
2082
2083         if (retval && (priv->filter & MODEST_FOLDER_VIEW_FILTER_MOVEABLE)) {
2084                 if (TNY_IS_FOLDER (instance)) {
2085                         retval = !(rules & MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE);
2086                 } else if (TNY_IS_ACCOUNT (instance)) {
2087                         retval = FALSE;
2088                 }
2089         }
2090
2091         /* Free */
2092         g_object_unref (instance);
2093         g_free (fname);
2094
2095         return retval;
2096 }
2097
2098
2099 gboolean
2100 modest_folder_view_update_model (ModestFolderView *self,
2101                                  TnyAccountStore *account_store)
2102 {
2103         ModestFolderViewPrivate *priv;
2104         GtkTreeModel *model /* , *old_model */;
2105         GtkTreeModel *filter_model = NULL, *sortable = NULL;
2106
2107         g_return_val_if_fail (self && MODEST_IS_FOLDER_VIEW (self), FALSE);
2108         g_return_val_if_fail (account_store && MODEST_IS_TNY_ACCOUNT_STORE(account_store),
2109                               FALSE);
2110
2111         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE(self);
2112
2113         /* Notify that there is no folder selected */
2114         g_signal_emit (G_OBJECT(self),
2115                        signals[FOLDER_SELECTION_CHANGED_SIGNAL], 0,
2116                        NULL, FALSE);
2117         if (priv->cur_folder_store) {
2118                 g_object_unref (priv->cur_folder_store);
2119                 priv->cur_folder_store = NULL;
2120         }
2121
2122         /* FIXME: the local accounts are not shown when the query
2123            selects only the subscribed folders */
2124 #ifdef MODEST_TOOLKIT_HILDON2
2125         model = tny_gtk_folder_list_store_new_with_flags (NULL, 
2126                                                           TNY_GTK_FOLDER_LIST_STORE_FLAG_SHOW_PATH);
2127         tny_gtk_folder_list_store_set_path_separator (TNY_GTK_FOLDER_LIST_STORE (model),
2128                                                       MODEST_FOLDER_PATH_SEPARATOR);
2129 #else
2130         model = tny_gtk_folder_store_tree_model_new (NULL);
2131 #endif
2132
2133         /* When the model is a list store (plain representation) the
2134            outbox is not a child of any account so we have to manually
2135            delete it because removing the local folders account won't
2136            delete it (because tny_folder_get_account() is not defined
2137            for a merge folder */
2138         if (TNY_IS_GTK_FOLDER_LIST_STORE (model)) {
2139                 TnyAccount *account;
2140                 ModestTnyAccountStore *acc_store;
2141
2142                 acc_store = modest_runtime_get_account_store ();
2143                 account = modest_tny_account_store_get_local_folders_account (acc_store);
2144
2145                 if (g_signal_handler_is_connected (account,
2146                                                    priv->outbox_deleted_handler))
2147                         g_signal_handler_disconnect (account,
2148                                                      priv->outbox_deleted_handler);
2149
2150                 priv->outbox_deleted_handler =
2151                         g_signal_connect (account,
2152                                           "outbox-deleted",
2153                                           G_CALLBACK (on_outbox_deleted_cb),
2154                                           self);
2155                 g_object_unref (account);
2156         }
2157
2158         /* Get the accounts: */
2159         tny_account_store_get_accounts (TNY_ACCOUNT_STORE(account_store),
2160                                         TNY_LIST (model),
2161                                         TNY_ACCOUNT_STORE_STORE_ACCOUNTS);
2162
2163         sortable = gtk_tree_model_sort_new_with_model (model);
2164         gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE(sortable),
2165                                               NAME_COLUMN,
2166                                               GTK_SORT_ASCENDING);
2167         gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE (sortable),
2168                                          NAME_COLUMN,
2169                                          cmp_rows, NULL, NULL);
2170
2171         /* Create filter model */
2172         filter_model = gtk_tree_model_filter_new (sortable, NULL);
2173         gtk_tree_model_filter_set_visible_func (GTK_TREE_MODEL_FILTER (filter_model),
2174                                                 filter_row,
2175                                                 self,
2176                                                 NULL);
2177
2178         /* Set new model */
2179         gtk_tree_view_set_model (GTK_TREE_VIEW(self), filter_model);
2180 #ifndef MODEST_TOOLKIT_HILDON2
2181         g_signal_connect (G_OBJECT(filter_model), "row-inserted",
2182                           (GCallback) on_row_inserted_maybe_select_folder, self);
2183 #endif
2184
2185         g_object_unref (model);
2186         g_object_unref (filter_model);
2187         g_object_unref (sortable);
2188
2189         /* Force a reselection of the INBOX next time the widget is shown */
2190         priv->reselect = TRUE;
2191
2192         return TRUE;
2193 }
2194
2195
2196 static void
2197 on_selection_changed (GtkTreeSelection *sel, gpointer user_data)
2198 {
2199         GtkTreeModel *model = NULL;
2200         TnyFolderStore *folder = NULL;
2201         GtkTreeIter iter;
2202         ModestFolderView *tree_view = NULL;
2203         ModestFolderViewPrivate *priv = NULL;
2204         gboolean selected = FALSE;
2205
2206         g_return_if_fail (sel);
2207         g_return_if_fail (user_data);
2208
2209         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(user_data);
2210
2211         selected = gtk_tree_selection_get_selected (sel, &model, &iter);
2212
2213         tree_view = MODEST_FOLDER_VIEW (user_data);
2214
2215         if (selected) {
2216                 gtk_tree_model_get (model, &iter,
2217                                     INSTANCE_COLUMN, &folder,
2218                                     -1);
2219
2220                 /* If the folder is the same do not notify */
2221                 if (folder && priv->cur_folder_store == folder) {
2222                         g_object_unref (folder);
2223                         return;
2224                 }
2225         }
2226
2227         /* Current folder was unselected */
2228         if (priv->cur_folder_store) {
2229                 /* We must do this firstly because a libtinymail-camel
2230                    implementation detail. If we issue the signal
2231                    before doing the sync_async, then that signal could
2232                    cause (and it actually does it) a free of the
2233                    summary of the folder (because the main window will
2234                    clear the headers view */
2235                 if (TNY_IS_FOLDER(priv->cur_folder_store))
2236                         tny_folder_sync_async (TNY_FOLDER(priv->cur_folder_store),
2237                                                FALSE, NULL, NULL, NULL);
2238
2239                 g_signal_emit (G_OBJECT(tree_view), signals[FOLDER_SELECTION_CHANGED_SIGNAL], 0,
2240                        priv->cur_folder_store, FALSE);
2241
2242                 g_object_unref (priv->cur_folder_store);
2243                 priv->cur_folder_store = NULL;
2244         }
2245
2246         /* New current references */
2247         priv->cur_folder_store = folder;
2248
2249         /* New folder has been selected. Do not notify if there is
2250            nothing new selected */
2251         if (selected) {
2252                 g_signal_emit (G_OBJECT(tree_view),
2253                                signals[FOLDER_SELECTION_CHANGED_SIGNAL],
2254                                0, priv->cur_folder_store, TRUE);
2255         }
2256 }
2257
2258 static void
2259 on_row_activated (GtkTreeView *treeview,
2260                   GtkTreePath *treepath,
2261                   GtkTreeViewColumn *column,
2262                   gpointer user_data)
2263 {
2264         GtkTreeModel *model = NULL;
2265         TnyFolderStore *folder = NULL;
2266         GtkTreeIter iter;
2267         ModestFolderView *self = NULL;
2268         ModestFolderViewPrivate *priv = NULL;
2269
2270         g_return_if_fail (treeview);
2271         g_return_if_fail (user_data);
2272
2273         self = MODEST_FOLDER_VIEW (user_data);
2274         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(user_data);
2275
2276         model = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
2277
2278         if (!gtk_tree_model_get_iter (model, &iter, treepath))
2279                 return;
2280
2281         gtk_tree_model_get (model, &iter,
2282                             INSTANCE_COLUMN, &folder,
2283                             -1);
2284
2285         g_signal_emit (G_OBJECT(self),
2286                        signals[FOLDER_ACTIVATED_SIGNAL],
2287                        0, folder);
2288
2289 #ifdef MODEST_TOOLKIT_HILDON2
2290         HildonUIMode ui_mode;
2291         g_object_get (G_OBJECT (self), "hildon-ui-mode", &ui_mode, NULL);
2292         if (ui_mode == HILDON_UI_MODE_NORMAL) {
2293                 if (priv->cur_folder_store)
2294                         g_object_unref (priv->cur_folder_store);
2295                 priv->cur_folder_store = g_object_ref (folder);
2296         }
2297 #endif
2298
2299         g_object_unref (folder);
2300 }
2301
2302 TnyFolderStore *
2303 modest_folder_view_get_selected (ModestFolderView *self)
2304 {
2305         ModestFolderViewPrivate *priv;
2306
2307         g_return_val_if_fail (self && MODEST_IS_FOLDER_VIEW(self), NULL);
2308
2309         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
2310         if (priv->cur_folder_store)
2311                 g_object_ref (priv->cur_folder_store);
2312
2313         return priv->cur_folder_store;
2314 }
2315
2316 static gint
2317 get_cmp_rows_type_pos (GObject *folder)
2318 {
2319         /* Remote accounts -> Local account -> MMC account .*/
2320         /* 0, 1, 2 */
2321
2322         if (TNY_IS_ACCOUNT (folder) &&
2323                 modest_tny_account_is_virtual_local_folders (
2324                         TNY_ACCOUNT (folder))) {
2325                 return 1;
2326         } else if (TNY_IS_ACCOUNT (folder)) {
2327                 TnyAccount *account = TNY_ACCOUNT (folder);
2328                 const gchar *account_id = tny_account_get_id (account);
2329                 if (!strcmp (account_id, MODEST_MMC_ACCOUNT_ID))
2330                         return 2;
2331                 else
2332                         return 0;
2333         }
2334         else {
2335                 printf ("DEBUG: %s: unexpected type.\n", __FUNCTION__);
2336                 return -1; /* Should never happen */
2337         }
2338 }
2339
2340 static gboolean
2341 inbox_is_special (TnyFolderStore *folder_store)
2342 {
2343         gboolean is_special = TRUE;
2344
2345         if (TNY_IS_FOLDER (folder_store)) {
2346                 const gchar *id;
2347                 gchar *downcase;
2348                 gchar *last_bar;
2349                 gchar *last_inbox_bar;
2350
2351                 id = tny_folder_get_id (TNY_FOLDER (folder_store));
2352                 downcase = g_utf8_strdown (id, -1);
2353                 last_bar = g_strrstr (downcase, "/");
2354                 if (last_bar) {
2355                         last_inbox_bar = g_strrstr  (downcase, "inbox/");
2356                         if ((last_inbox_bar == NULL) || (last_inbox_bar + 5 != last_bar))
2357                                 is_special = FALSE;
2358                 } else {
2359                         is_special = FALSE;
2360                 }
2361                 g_free (downcase);
2362         }
2363         return is_special;
2364 }
2365
2366 static gint
2367 get_cmp_pos (TnyFolderType t, TnyFolder *folder_store)
2368 {
2369         TnyAccount *account;
2370         gboolean is_special;
2371         /* Inbox, Outbox, Drafts, Sent, User */
2372         /* 0, 1, 2, 3, 4 */
2373
2374         if (!TNY_IS_FOLDER (folder_store))
2375                 return 4;
2376         switch (t) {
2377         case TNY_FOLDER_TYPE_INBOX:
2378         {
2379                 account = tny_folder_get_account (folder_store);
2380                 is_special = (get_cmp_rows_type_pos (G_OBJECT (account)) == 0);
2381
2382                 /* In inbox case we need to know if the inbox is really the top
2383                  * inbox of the account, or if it's a submailbox inbox. To do
2384                  * this we'll apply an heuristic rule: Find last "/" and check
2385                  * if it's preceeded by another Inbox */
2386                 is_special = is_special && !inbox_is_special (TNY_FOLDER_STORE (folder_store));
2387                 g_object_unref (account);
2388                 return is_special?0:4;
2389         }
2390         break;
2391         case TNY_FOLDER_TYPE_OUTBOX:
2392                 return (TNY_IS_MERGE_FOLDER (folder_store))?2:4;
2393                 break;
2394         case TNY_FOLDER_TYPE_DRAFTS:
2395         {
2396                 account = tny_folder_get_account (folder_store);
2397                 is_special = (get_cmp_rows_type_pos (G_OBJECT (account)) == 1);
2398                 g_object_unref (account);
2399                 return is_special?1:4;
2400         }
2401         break;
2402         case TNY_FOLDER_TYPE_SENT:
2403         {
2404                 account = tny_folder_get_account (folder_store);
2405                 is_special = (get_cmp_rows_type_pos (G_OBJECT (account)) == 1);
2406                 g_object_unref (account);
2407                 return is_special?3:4;
2408         }
2409         break;
2410         default:
2411                 return 4;
2412         }
2413 }
2414
2415 static gint
2416 compare_account_names (TnyAccount *a1, TnyAccount *a2)
2417 {
2418         const gchar *a1_name, *a2_name;
2419
2420         a1_name = tny_account_get_name (a1);
2421         a2_name = tny_account_get_name (a2);
2422
2423         return modest_text_utils_utf8_strcmp (a1_name, a2_name, TRUE);
2424 }
2425
2426 static gint
2427 compare_accounts (TnyFolderStore *s1, TnyFolderStore *s2)
2428 {
2429         TnyAccount *a1 = NULL, *a2 = NULL;
2430         gint cmp;
2431
2432         if (TNY_IS_ACCOUNT (s1)) {
2433                 a1 = TNY_ACCOUNT (g_object_ref (s1));
2434         } else if (!TNY_IS_MERGE_FOLDER (s1)) {
2435                 a1 = tny_folder_get_account (TNY_FOLDER (s1));
2436         }
2437
2438         if (TNY_IS_ACCOUNT (s2)) {
2439                 a2 = TNY_ACCOUNT (g_object_ref (s2));
2440         } else  if (!TNY_IS_MERGE_FOLDER (s2)) {
2441                 a2 = tny_folder_get_account (TNY_FOLDER (s2));
2442         }
2443
2444         if (!a1 || !a2) {
2445                 if (!a1 && !a2)
2446                         cmp = 0;
2447                 else if (!a1)
2448                         cmp = 1;
2449                 else
2450                         cmp = -1;
2451                 goto finish;
2452         }
2453
2454         if (a1 == a2) {
2455                 cmp = 0;
2456                 goto finish;
2457         }
2458         /* First we sort with the type of account */
2459         cmp = get_cmp_rows_type_pos (G_OBJECT (a1)) - get_cmp_rows_type_pos (G_OBJECT (a2));
2460         if (cmp != 0)
2461                 goto finish;
2462
2463         cmp = compare_account_names (a1, a2);
2464
2465 finish:
2466         if (a1)
2467                 g_object_unref (a1);
2468         if (a2)
2469                 g_object_unref (a2);
2470
2471         return cmp;
2472 }
2473
2474 static gint
2475 compare_accounts_first (TnyFolderStore *s1, TnyFolderStore *s2)
2476 {
2477         gint is_account1, is_account2;
2478
2479         is_account1 = TNY_IS_ACCOUNT (s1)?1:0;
2480         is_account2 = TNY_IS_ACCOUNT (s2)?1:0;
2481
2482         return is_account2 - is_account1;
2483 }
2484
2485 /*
2486  * This function orders the mail accounts according to these rules:
2487  * 1st - remote accounts
2488  * 2nd - local account
2489  * 3rd - MMC account
2490  */
2491 static gint
2492 cmp_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
2493           gpointer user_data)
2494 {
2495         gint cmp = 0;
2496         gchar *name1 = NULL;
2497         gchar *name2 = NULL;
2498         TnyFolderType type = TNY_FOLDER_TYPE_UNKNOWN;
2499         TnyFolderType type2 = TNY_FOLDER_TYPE_UNKNOWN;
2500         GObject *folder1 = NULL;
2501         GObject *folder2 = NULL;
2502
2503         gtk_tree_model_get (tree_model, iter1,
2504                             NAME_COLUMN, &name1,
2505                             TYPE_COLUMN, &type,
2506                             INSTANCE_COLUMN, &folder1,
2507                             -1);
2508         gtk_tree_model_get (tree_model, iter2,
2509                             NAME_COLUMN, &name2,
2510                             TYPE_COLUMN, &type2,
2511                             INSTANCE_COLUMN, &folder2,
2512                             -1);
2513
2514         /* Return if we get no folder. This could happen when folder
2515            operations are happening. The model is updated after the
2516            folder copy/move actually occurs, so there could be
2517            situations where the model to be drawn is not correct */
2518         if (!folder1 || !folder2)
2519                 goto finish;
2520
2521         /* Sort by type. First the special folders, then the archives */
2522         cmp = get_cmp_pos (type, (TnyFolder *) folder1) - get_cmp_pos (type2, (TnyFolder *) folder2);
2523         if (cmp != 0)
2524                 goto finish;
2525
2526         /* Now we sort using the account of each folder */
2527         if (TNY_IS_FOLDER_STORE (folder1) && 
2528             TNY_IS_FOLDER_STORE (folder2)) {
2529                 cmp = compare_accounts (TNY_FOLDER_STORE (folder1), TNY_FOLDER_STORE (folder2));
2530                 if (cmp != 0)
2531                         goto finish;
2532
2533                 /* Each group is preceeded by its account */
2534                 cmp = compare_accounts_first (TNY_FOLDER_STORE (folder1), TNY_FOLDER_STORE (folder2));
2535                 if (cmp != 0)
2536                         goto finish;
2537         }
2538
2539         /* Pure sort by name */
2540         cmp = modest_text_utils_utf8_strcmp (name1, name2, TRUE);
2541  finish:
2542         if (folder1)
2543                 g_object_unref(G_OBJECT(folder1));
2544         if (folder2)
2545                 g_object_unref(G_OBJECT(folder2));
2546
2547         g_free (name1);
2548         g_free (name2);
2549
2550         return cmp;
2551 }
2552
2553 /*****************************************************************************/
2554 /*                        DRAG and DROP stuff                                */
2555 /*****************************************************************************/
2556 /*
2557  * This function fills the #GtkSelectionData with the row and the
2558  * model that has been dragged. It's called when this widget is a
2559  * source for dnd after the event drop happened
2560  */
2561 static void
2562 on_drag_data_get (GtkWidget *widget, GdkDragContext *context, GtkSelectionData *selection_data,
2563                   guint info, guint time, gpointer data)
2564 {
2565         GtkTreeSelection *selection;
2566         GtkTreeModel *model;
2567         GtkTreeIter iter;
2568         GtkTreePath *source_row;
2569
2570         selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (widget));
2571         if (gtk_tree_selection_get_selected (selection, &model, &iter)) {
2572
2573                 source_row = gtk_tree_model_get_path (model, &iter);
2574                 gtk_tree_set_row_drag_data (selection_data,
2575                                             model,
2576                                             source_row);
2577
2578                 gtk_tree_path_free (source_row);
2579         }
2580 }
2581
2582 typedef struct _DndHelper {
2583         ModestFolderView *folder_view;
2584         gboolean delete_source;
2585         GtkTreePath *source_row;
2586 } DndHelper;
2587
2588 static void
2589 dnd_helper_destroyer (DndHelper *helper)
2590 {
2591         /* Free the helper */
2592         gtk_tree_path_free (helper->source_row);
2593         g_slice_free (DndHelper, helper);
2594 }
2595
2596 static void
2597 xfer_folder_cb (ModestMailOperation *mail_op,
2598                 TnyFolder *new_folder,
2599                 gpointer user_data)
2600 {
2601         if (new_folder) {
2602                 /* Select the folder */
2603                 modest_folder_view_select_folder (MODEST_FOLDER_VIEW (user_data),
2604                                                   new_folder, FALSE);
2605         }
2606 }
2607
2608
2609 /* get the folder for the row the treepath refers to. */
2610 /* folder must be unref'd */
2611 static TnyFolderStore *
2612 tree_path_to_folder (GtkTreeModel *model, GtkTreePath *path)
2613 {
2614         GtkTreeIter iter;
2615         TnyFolderStore *folder = NULL;
2616
2617         if (gtk_tree_model_get_iter (model,&iter, path))
2618                 gtk_tree_model_get (model, &iter,
2619                                     INSTANCE_COLUMN, &folder,
2620                                     -1);
2621         return folder;
2622 }
2623
2624
2625 /*
2626  * This function is used by drag_data_received_cb to manage drag and
2627  * drop of a header, i.e, and drag from the header view to the folder
2628  * view.
2629  */
2630 static void
2631 drag_and_drop_from_header_view (GtkTreeModel *source_model,
2632                                 GtkTreeModel *dest_model,
2633                                 GtkTreePath  *dest_row,
2634                                 GtkSelectionData *selection_data)
2635 {
2636         TnyList *headers = NULL;
2637         TnyFolder *folder = NULL, *src_folder = NULL;
2638         TnyFolderType folder_type;
2639         GtkTreeIter source_iter, dest_iter;
2640         ModestWindowMgr *mgr = NULL;
2641         ModestWindow *main_win = NULL;
2642         gchar **uris, **tmp;
2643
2644         /* Build the list of headers */
2645         mgr = modest_runtime_get_window_mgr ();
2646         headers = tny_simple_list_new ();
2647         uris = modest_dnd_selection_data_get_paths (selection_data);
2648         tmp = uris;
2649
2650         while (*tmp != NULL) {
2651                 TnyHeader *header;
2652                 GtkTreePath *path;
2653                 gboolean first = TRUE;
2654
2655                 /* Get header */
2656                 path = gtk_tree_path_new_from_string (*tmp);
2657                 gtk_tree_model_get_iter (source_model, &source_iter, path);
2658                 gtk_tree_model_get (source_model, &source_iter,
2659                                     TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
2660                                     &header, -1);
2661
2662                 /* Do not enable d&d of headers already opened */
2663                 if (!modest_window_mgr_find_registered_header(mgr, header, NULL))
2664                         tny_list_append (headers, G_OBJECT (header));
2665
2666                 if (G_UNLIKELY (first)) {
2667                         src_folder = tny_header_get_folder (header);
2668                         first = FALSE;
2669                 }
2670
2671                 /* Free and go on */
2672                 gtk_tree_path_free (path);
2673                 g_object_unref (header);
2674                 tmp++;
2675         }
2676         g_strfreev (uris);
2677
2678         /* This could happen ig we perform a d&d very quickly over the
2679            same row that row could dissapear because message is
2680            transferred */
2681         if (!TNY_IS_FOLDER (src_folder))
2682                 goto cleanup;
2683
2684         /* Get the target folder */
2685         gtk_tree_model_get_iter (dest_model, &dest_iter, dest_row);
2686         gtk_tree_model_get (dest_model, &dest_iter,
2687                             INSTANCE_COLUMN,
2688                             &folder, -1);
2689
2690         if (!folder || !TNY_IS_FOLDER(folder)) {
2691 /*              g_warning ("%s: not a valid target folder (%p)", __FUNCTION__, folder); */
2692                 goto cleanup;
2693         }
2694
2695         folder_type = modest_tny_folder_guess_folder_type (folder);
2696         if (folder_type == TNY_FOLDER_TYPE_INVALID) {
2697 /*              g_warning ("%s: invalid target folder", __FUNCTION__); */
2698                 goto cleanup;  /* cannot move messages there */
2699         }
2700
2701         if (modest_tny_folder_get_rules((TNY_FOLDER(folder))) & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE) {
2702 /*              g_warning ("folder not writable"); */
2703                 goto cleanup; /* verboten! */
2704         }
2705
2706         /* Ask for confirmation to move */
2707         main_win = modest_window_mgr_get_main_window (mgr, FALSE); /* don't create */
2708         if (!main_win) {
2709                 g_warning ("%s: BUG: no main window found", __FUNCTION__);
2710                 goto cleanup;
2711         }
2712
2713         /* Transfer messages */
2714         modest_ui_actions_transfer_messages_helper (GTK_WINDOW (main_win), src_folder,
2715                                                     headers, folder);
2716
2717         /* Frees */
2718 cleanup:
2719         if (G_IS_OBJECT (src_folder))
2720                 g_object_unref (src_folder);
2721         if (G_IS_OBJECT(folder))
2722                 g_object_unref (G_OBJECT (folder));
2723         if (G_IS_OBJECT(headers))
2724                 g_object_unref (headers);
2725 }
2726
2727 typedef struct {
2728         TnyFolderStore *src_folder;
2729         TnyFolderStore *dst_folder;
2730         ModestFolderView *folder_view;
2731         DndHelper *helper;
2732 } DndFolderInfo;
2733
2734 static void
2735 dnd_folder_info_destroyer (DndFolderInfo *info)
2736 {
2737         if (info->src_folder)
2738                 g_object_unref (info->src_folder);
2739         if (info->dst_folder)
2740                 g_object_unref (info->dst_folder);
2741         g_slice_free (DndFolderInfo, info);
2742 }
2743
2744 static void
2745 dnd_on_connection_failed_destroyer (DndFolderInfo *info,
2746                                     GtkWindow *parent_window,
2747                                     TnyAccount *account)
2748 {
2749         /* Show error */
2750         modest_ui_actions_on_account_connection_error (parent_window, account);
2751
2752         /* Free the helper & info */
2753         dnd_helper_destroyer (info->helper);
2754         dnd_folder_info_destroyer (info);
2755 }
2756
2757 static void
2758 drag_and_drop_from_folder_view_src_folder_performer (gboolean canceled,
2759                                                      GError *err,
2760                                                      GtkWindow *parent_window,
2761                                                      TnyAccount *account,
2762                                                      gpointer user_data)
2763 {
2764         DndFolderInfo *info = NULL;
2765         ModestMailOperation *mail_op;
2766
2767         info = (DndFolderInfo *) user_data;
2768
2769         if (err || canceled) {
2770                 dnd_on_connection_failed_destroyer (info, parent_window, account);
2771                 return;
2772         }
2773
2774         /* Do the mail operation */
2775         mail_op = modest_mail_operation_new_with_error_handling ((GObject *) parent_window,
2776                                                                  modest_ui_actions_move_folder_error_handler,
2777                                                                  info->src_folder, NULL);
2778
2779         modest_mail_operation_queue_add (modest_runtime_get_mail_operation_queue (),
2780                                          mail_op);
2781
2782         /* Transfer the folder */
2783         modest_mail_operation_xfer_folder (mail_op,
2784                                            TNY_FOLDER (info->src_folder),
2785                                            info->dst_folder,
2786                                            info->helper->delete_source,
2787                                            xfer_folder_cb,
2788                                            info->helper->folder_view);
2789
2790         /* Frees */
2791         g_object_unref (G_OBJECT (mail_op));
2792         dnd_helper_destroyer (info->helper);
2793         dnd_folder_info_destroyer (info);
2794 }
2795
2796
2797 static void
2798 drag_and_drop_from_folder_view_dst_folder_performer (gboolean canceled,
2799                                                      GError *err,
2800                                                      GtkWindow *parent_window,
2801                                                      TnyAccount *account,
2802                                                      gpointer user_data)
2803 {
2804         DndFolderInfo *info = NULL;
2805
2806         info = (DndFolderInfo *) user_data;
2807
2808         if (err || canceled) {
2809                 dnd_on_connection_failed_destroyer (info, parent_window, account);
2810                 return;
2811         }
2812
2813         /* Connect to source folder and perform the copy/move */
2814         modest_platform_connect_if_remote_and_perform (NULL, TRUE,
2815                                                        info->src_folder,
2816                                                        drag_and_drop_from_folder_view_src_folder_performer,
2817                                                        info);
2818 }
2819
2820 /*
2821  * This function is used by drag_data_received_cb to manage drag and
2822  * drop of a folder, i.e, and drag from the folder view to the same
2823  * folder view.
2824  */
2825 static void
2826 drag_and_drop_from_folder_view (GtkTreeModel     *source_model,
2827                                 GtkTreeModel     *dest_model,
2828                                 GtkTreePath      *dest_row,
2829                                 GtkSelectionData *selection_data,
2830                                 DndHelper        *helper)
2831 {
2832         GtkTreeIter dest_iter, iter;
2833         TnyFolderStore *dest_folder = NULL;
2834         TnyFolderStore *folder = NULL;
2835         gboolean forbidden = FALSE;
2836         ModestWindow *win;
2837         DndFolderInfo *info = NULL;
2838
2839         win = modest_window_mgr_get_main_window (modest_runtime_get_window_mgr(), FALSE); /* don't create */
2840         if (!win) {
2841                 g_warning ("%s: BUG: no main window", __FUNCTION__);
2842                 dnd_helper_destroyer (helper);
2843                 return;
2844         }
2845
2846         if (!forbidden) {
2847                 /* check the folder rules for the destination */
2848                 folder = tree_path_to_folder (dest_model, dest_row);
2849                 if (TNY_IS_FOLDER(folder)) {
2850                         ModestTnyFolderRules rules =
2851                                 modest_tny_folder_get_rules (TNY_FOLDER (folder));
2852                         forbidden = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
2853                 } else if (TNY_IS_FOLDER_STORE(folder)) {
2854                         /* enable local root as destination for folders */
2855                         if (!MODEST_IS_TNY_LOCAL_FOLDERS_ACCOUNT (folder) &&
2856                             !modest_tny_account_is_memory_card_account (TNY_ACCOUNT (folder)))
2857                                 forbidden = TRUE;
2858                 }
2859                 g_object_unref (folder);
2860         }
2861         if (!forbidden) {
2862                 /* check the folder rules for the source */
2863                 folder = tree_path_to_folder (source_model, helper->source_row);
2864                 if (TNY_IS_FOLDER(folder)) {
2865                         ModestTnyFolderRules rules =
2866                                 modest_tny_folder_get_rules (TNY_FOLDER (folder));
2867                         forbidden = rules & MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE;
2868                 } else
2869                         forbidden = TRUE;
2870                 g_object_unref (folder);
2871         }
2872
2873
2874         /* Check if the drag is possible */
2875         if (forbidden || !gtk_tree_path_compare (helper->source_row, dest_row)) {
2876                 /* Show error */
2877                 modest_platform_run_information_dialog ((GtkWindow *) win, 
2878                                                         _("mail_in_ui_folder_move_target_error"), 
2879                                                         FALSE);
2880                 /* Restore the previous selection */
2881                 folder = tree_path_to_folder (source_model, helper->source_row);
2882                 if (folder) {
2883                         if (TNY_IS_FOLDER (folder))
2884                                 modest_folder_view_select_folder (helper->folder_view, 
2885                                                                   TNY_FOLDER (folder), FALSE);
2886                         g_object_unref (folder);
2887                 }
2888                 dnd_helper_destroyer (helper);
2889                 return;
2890         }
2891
2892         /* Get data */
2893         gtk_tree_model_get_iter (dest_model, &dest_iter, dest_row);
2894         gtk_tree_model_get (dest_model, &dest_iter,
2895                             INSTANCE_COLUMN,
2896                             &dest_folder, -1);
2897         gtk_tree_model_get_iter (source_model, &iter, helper->source_row);
2898         gtk_tree_model_get (source_model, &iter,
2899                             INSTANCE_COLUMN,
2900                             &folder, -1);
2901
2902         /* Create the info for the performer */
2903         info = g_slice_new0 (DndFolderInfo);
2904         info->src_folder = g_object_ref (folder);
2905         info->dst_folder = g_object_ref (dest_folder);
2906         info->helper = helper;
2907
2908         /* Connect to the destination folder and perform the copy/move */
2909         modest_platform_connect_if_remote_and_perform (GTK_WINDOW (win), TRUE,
2910                                                        dest_folder,
2911                                                        drag_and_drop_from_folder_view_dst_folder_performer,
2912                                                        info);
2913
2914         /* Frees */
2915         g_object_unref (dest_folder);
2916         g_object_unref (folder);
2917 }
2918
2919 /*
2920  * This function receives the data set by the "drag-data-get" signal
2921  * handler. This information comes within the #GtkSelectionData. This
2922  * function will manage both the drags of folders of the treeview and
2923  * drags of headers of the header view widget.
2924  */
2925 static void
2926 on_drag_data_received (GtkWidget *widget,
2927                        GdkDragContext *context,
2928                        gint x,
2929                        gint y,
2930                        GtkSelectionData *selection_data,
2931                        guint target_type,
2932                        guint time,
2933                        gpointer data)
2934 {
2935         GtkWidget *source_widget;
2936         GtkTreeModel *dest_model, *source_model;
2937         GtkTreePath *source_row, *dest_row;
2938         GtkTreeViewDropPosition pos;
2939         gboolean delete_source = FALSE;
2940         gboolean success = FALSE;
2941
2942         /* Do not allow further process */
2943         g_signal_stop_emission_by_name (widget, "drag-data-received");
2944         source_widget = gtk_drag_get_source_widget (context);
2945
2946         /* Get the action */
2947         if (context->action == GDK_ACTION_MOVE) {
2948                 delete_source = TRUE;
2949
2950                 /* Notify that there is no folder selected. We need to
2951                    do this in order to update the headers view (and
2952                    its monitors, because when moving, the old folder
2953                    won't longer exist. We can not wait for the end of
2954                    the operation, because the operation won't start if
2955                    the folder is in use */
2956                 if (source_widget == widget) {
2957                         GtkTreeSelection *sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (widget));
2958                         gtk_tree_selection_unselect_all (sel);
2959                 }
2960         }
2961
2962         /* Check if the get_data failed */
2963         if (selection_data == NULL || selection_data->length < 0)
2964                 goto end;
2965
2966         /* Select the destination model */
2967         dest_model = gtk_tree_view_get_model (GTK_TREE_VIEW (widget));
2968
2969         /* Get the path to the destination row. Can not call
2970            gtk_tree_view_get_drag_dest_row() because the source row
2971            is not selected anymore */
2972         gtk_tree_view_get_dest_row_at_pos (GTK_TREE_VIEW (widget), x, y,
2973                                            &dest_row, &pos);
2974
2975         /* Only allow drops IN other rows */
2976         if (!dest_row ||
2977             pos == GTK_TREE_VIEW_DROP_BEFORE ||
2978             pos == GTK_TREE_VIEW_DROP_AFTER)
2979                 goto end;
2980
2981         success = TRUE;
2982         /* Drags from the header view */
2983         if (source_widget != widget) {
2984                 source_model = gtk_tree_view_get_model (GTK_TREE_VIEW (source_widget));
2985
2986                 drag_and_drop_from_header_view (source_model,
2987                                                 dest_model,
2988                                                 dest_row,
2989                                                 selection_data);
2990         } else {
2991                 DndHelper *helper = NULL;
2992
2993                 /* Get the source model and row */
2994                 gtk_tree_get_row_drag_data (selection_data,
2995                                             &source_model,
2996                                             &source_row);
2997
2998                 /* Create the helper */
2999                 helper = g_slice_new0 (DndHelper);
3000                 helper->delete_source = delete_source;
3001                 helper->source_row = gtk_tree_path_copy (source_row);
3002                 helper->folder_view = MODEST_FOLDER_VIEW (widget);
3003
3004                 drag_and_drop_from_folder_view (source_model,
3005                                                 dest_model,
3006                                                 dest_row,
3007                                                 selection_data,
3008                                                 helper);
3009
3010                 gtk_tree_path_free (source_row);
3011         }
3012
3013         /* Frees */
3014         gtk_tree_path_free (dest_row);
3015
3016  end:
3017         /* Finish the drag and drop */
3018         gtk_drag_finish (context, success, FALSE, time);
3019 }
3020
3021 /*
3022  * We define a "drag-drop" signal handler because we do not want to
3023  * use the default one, because the default one always calls
3024  * gtk_drag_finish and we prefer to do it in the "drag-data-received"
3025  * signal handler, because there we have all the information available
3026  * to know if the dnd was a success or not.
3027  */
3028 static gboolean
3029 drag_drop_cb (GtkWidget      *widget,
3030               GdkDragContext *context,
3031               gint            x,
3032               gint            y,
3033               guint           time,
3034               gpointer        user_data)
3035 {
3036         gpointer target;
3037
3038         if (!context->targets)
3039                 return FALSE;
3040
3041         /* Check if we're dragging a folder row */
3042         target = gtk_drag_dest_find_target (widget, context, NULL);
3043
3044         /* Request the data from the source. */
3045         gtk_drag_get_data(widget, context, target, time);
3046
3047     return TRUE;
3048 }
3049
3050 /*
3051  * This function expands a node of a tree view if it's not expanded
3052  * yet. Not sure why it needs the threads stuff, but gtk+`example code
3053  * does that, so that's why they're here.
3054  */
3055 static gint
3056 expand_row_timeout (gpointer data)
3057 {
3058         GtkTreeView *tree_view = data;
3059         GtkTreePath *dest_path = NULL;
3060         GtkTreeViewDropPosition pos;
3061         gboolean result = FALSE;
3062
3063         gdk_threads_enter ();
3064
3065         gtk_tree_view_get_drag_dest_row (tree_view,
3066                                          &dest_path,
3067                                          &pos);
3068
3069         if (dest_path &&
3070             (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
3071              pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)) {
3072                 gtk_tree_view_expand_row (tree_view, dest_path, FALSE);
3073                 gtk_tree_path_free (dest_path);
3074         }
3075         else {
3076                 if (dest_path)
3077                         gtk_tree_path_free (dest_path);
3078
3079                 result = TRUE;
3080         }
3081
3082         gdk_threads_leave ();
3083
3084         return result;
3085 }
3086
3087 /*
3088  * This function is called whenever the pointer is moved over a widget
3089  * while dragging some data. It installs a timeout that will expand a
3090  * node of the treeview if not expanded yet. This function also calls
3091  * gdk_drag_status in order to set the suggested action that will be
3092  * used by the "drag-data-received" signal handler to know if we
3093  * should do a move or just a copy of the data.
3094  */
3095 static gboolean
3096 on_drag_motion (GtkWidget      *widget,
3097                 GdkDragContext *context,
3098                 gint            x,
3099                 gint            y,
3100                 guint           time,
3101                 gpointer        user_data)
3102 {
3103         GtkTreeViewDropPosition pos;
3104         GtkTreePath *dest_row;
3105         GtkTreeModel *dest_model;
3106         ModestFolderViewPrivate *priv;
3107         GdkDragAction suggested_action;
3108         gboolean valid_location = FALSE;
3109         TnyFolderStore *folder = NULL;
3110
3111         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (widget);
3112
3113         if (priv->timer_expander != 0) {
3114                 g_source_remove (priv->timer_expander);
3115                 priv->timer_expander = 0;
3116         }
3117
3118         gtk_tree_view_get_dest_row_at_pos (GTK_TREE_VIEW (widget),
3119                                            x, y,
3120                                            &dest_row,
3121                                            &pos);
3122
3123         /* Do not allow drops between folders */
3124         if (!dest_row ||
3125             pos == GTK_TREE_VIEW_DROP_BEFORE ||
3126             pos == GTK_TREE_VIEW_DROP_AFTER) {
3127                 gtk_tree_view_set_drag_dest_row(GTK_TREE_VIEW (widget), NULL, 0);
3128                 gdk_drag_status(context, 0, time);
3129                 valid_location = FALSE;
3130                 goto out;
3131         } else {
3132                 valid_location = TRUE;
3133         }
3134
3135         /* Check that the destination folder is writable */
3136         dest_model = gtk_tree_view_get_model (GTK_TREE_VIEW (widget));
3137         folder = tree_path_to_folder (dest_model, dest_row);
3138         if (folder && TNY_IS_FOLDER (folder)) {
3139                 ModestTnyFolderRules rules = modest_tny_folder_get_rules(TNY_FOLDER (folder));
3140
3141                 if (rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE) {
3142                         valid_location = FALSE;
3143                         goto out;
3144                 }
3145         }
3146
3147         /* Expand the selected row after 1/2 second */
3148         if (!gtk_tree_view_row_expanded (GTK_TREE_VIEW (widget), dest_row)) {
3149                 priv->timer_expander = g_timeout_add (500, expand_row_timeout, widget);
3150         }
3151         gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget), dest_row, pos);
3152
3153         /* Select the desired action. By default we pick MOVE */
3154         suggested_action = GDK_ACTION_MOVE;
3155
3156         if (context->actions == GDK_ACTION_COPY)
3157             gdk_drag_status(context, GDK_ACTION_COPY, time);
3158         else if (context->actions == GDK_ACTION_MOVE)
3159             gdk_drag_status(context, GDK_ACTION_MOVE, time);
3160         else if (context->actions & suggested_action)
3161             gdk_drag_status(context, suggested_action, time);
3162         else
3163             gdk_drag_status(context, GDK_ACTION_DEFAULT, time);
3164
3165  out:
3166         if (folder)
3167                 g_object_unref (folder);
3168         if (dest_row) {
3169                 gtk_tree_path_free (dest_row);
3170         }
3171         g_signal_stop_emission_by_name (widget, "drag-motion");
3172
3173         return valid_location;
3174 }
3175
3176 /*
3177  * This function sets the treeview as a source and a target for dnd
3178  * events. It also connects all the requirede signals.
3179  */
3180 static void
3181 setup_drag_and_drop (GtkTreeView *self)
3182 {
3183         /* Set up the folder view as a dnd destination. Set only the
3184            highlight flag, otherwise gtk will have a different
3185            behaviour */
3186 #ifdef MODEST_TOOLKIT_HILDON2
3187         return;
3188 #endif
3189         gtk_drag_dest_set (GTK_WIDGET (self),
3190                            GTK_DEST_DEFAULT_HIGHLIGHT,
3191                            folder_view_drag_types,
3192                            G_N_ELEMENTS (folder_view_drag_types),
3193                            GDK_ACTION_MOVE | GDK_ACTION_COPY);
3194
3195         g_signal_connect (G_OBJECT (self),
3196                           "drag_data_received",
3197                           G_CALLBACK (on_drag_data_received),
3198                           NULL);
3199
3200
3201         /* Set up the treeview as a dnd source */
3202         gtk_drag_source_set (GTK_WIDGET (self),
3203                              GDK_BUTTON1_MASK,
3204                              folder_view_drag_types,
3205                              G_N_ELEMENTS (folder_view_drag_types),
3206                              GDK_ACTION_MOVE | GDK_ACTION_COPY);
3207
3208         g_signal_connect (G_OBJECT (self),
3209                           "drag_motion",
3210                           G_CALLBACK (on_drag_motion),
3211                           NULL);
3212
3213         g_signal_connect (G_OBJECT (self),
3214                           "drag_data_get",
3215                           G_CALLBACK (on_drag_data_get),
3216                           NULL);
3217
3218         g_signal_connect (G_OBJECT (self),
3219                           "drag_drop",
3220                           G_CALLBACK (drag_drop_cb),
3221                           NULL);
3222 }
3223
3224 /*
3225  * This function manages the navigation through the folders using the
3226  * keyboard or the hardware keys in the device
3227  */
3228 static gboolean
3229 on_key_pressed (GtkWidget *self,
3230                 GdkEventKey *event,
3231                 gpointer user_data)
3232 {
3233         GtkTreeSelection *selection;
3234         GtkTreeIter iter;
3235         GtkTreeModel *model;
3236         gboolean retval = FALSE;
3237
3238         /* Up and Down are automatically managed by the treeview */
3239         if (event->keyval == GDK_Return) {
3240                 /* Expand/Collapse the selected row */
3241                 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
3242                 if (gtk_tree_selection_get_selected (selection, &model, &iter)) {
3243                         GtkTreePath *path;
3244
3245                         path = gtk_tree_model_get_path (model, &iter);
3246
3247                         if (gtk_tree_view_row_expanded (GTK_TREE_VIEW (self), path))
3248                                 gtk_tree_view_collapse_row (GTK_TREE_VIEW (self), path);
3249                         else
3250                                 gtk_tree_view_expand_row (GTK_TREE_VIEW (self), path, FALSE);
3251                         gtk_tree_path_free (path);
3252                 }
3253                 /* No further processing */
3254                 retval = TRUE;
3255         }
3256
3257         return retval;
3258 }
3259
3260 /*
3261  * We listen to the changes in the local folder account name key,
3262  * because we want to show the right name in the view. The local
3263  * folder account name corresponds to the device name in the Maemo
3264  * version. We do this because we do not want to query gconf on each
3265  * tree view refresh. It's better to cache it and change whenever
3266  * necessary.
3267  */
3268 static void
3269 on_configuration_key_changed (ModestConf* conf,
3270                               const gchar *key,
3271                               ModestConfEvent event,
3272                               ModestConfNotificationId id,
3273                               ModestFolderView *self)
3274 {
3275         ModestFolderViewPrivate *priv;
3276
3277
3278         g_return_if_fail (MODEST_IS_FOLDER_VIEW (self));
3279         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
3280
3281         if (!strcmp (key, MODEST_CONF_DEVICE_NAME)) {
3282                 g_free (priv->local_account_name);
3283
3284                 if (event == MODEST_CONF_EVENT_KEY_UNSET)
3285                         priv->local_account_name = g_strdup (MODEST_LOCAL_FOLDERS_DEFAULT_DISPLAY_NAME);
3286                 else
3287                         priv->local_account_name = modest_conf_get_string (modest_runtime_get_conf(),
3288                                                                            MODEST_CONF_DEVICE_NAME, NULL);
3289
3290                 /* Force a redraw */
3291 #if GTK_CHECK_VERSION(2, 8, 0)
3292                 GtkTreeViewColumn * tree_column;
3293
3294                 tree_column = gtk_tree_view_get_column (GTK_TREE_VIEW (self),
3295                                                         NAME_COLUMN);
3296                 gtk_tree_view_column_queue_resize (tree_column);
3297 #else
3298                 gtk_widget_queue_draw (GTK_WIDGET (self));
3299 #endif
3300         }
3301 }
3302
3303 void
3304 modest_folder_view_set_style (ModestFolderView *self,
3305                               ModestFolderViewStyle style)
3306 {
3307         ModestFolderViewPrivate *priv;
3308
3309         g_return_if_fail (self && MODEST_IS_FOLDER_VIEW(self));
3310         g_return_if_fail (style == MODEST_FOLDER_VIEW_STYLE_SHOW_ALL ||
3311                           style == MODEST_FOLDER_VIEW_STYLE_SHOW_ONE);
3312
3313         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
3314
3315
3316         priv->style = style;
3317 }
3318
3319 void
3320 modest_folder_view_set_account_id_of_visible_server_account (ModestFolderView *self,
3321                                                              const gchar *account_id)
3322 {
3323         ModestFolderViewPrivate *priv;
3324         GtkTreeModel *model;
3325
3326         g_return_if_fail (self && MODEST_IS_FOLDER_VIEW(self));
3327
3328         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
3329
3330         /* This will be used by the filter_row callback,
3331          * to decided which rows to show: */
3332         if (priv->visible_account_id) {
3333                 g_free (priv->visible_account_id);
3334                 priv->visible_account_id = NULL;
3335         }
3336         if (account_id)
3337                 priv->visible_account_id = g_strdup (account_id);
3338
3339         /* Refilter */
3340         model = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
3341         if (GTK_IS_TREE_MODEL_FILTER (model))
3342                 gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (model));
3343
3344         /* Save settings to gconf */
3345         modest_widget_memory_save (modest_runtime_get_conf (), G_OBJECT(self),
3346                                    MODEST_CONF_FOLDER_VIEW_KEY);
3347
3348         /* Notify observers */
3349         g_signal_emit (G_OBJECT(self),
3350                        signals[VISIBLE_ACCOUNT_CHANGED_SIGNAL], 0,
3351                        account_id);
3352 }
3353
3354 const gchar *
3355 modest_folder_view_get_account_id_of_visible_server_account (ModestFolderView *self)
3356 {
3357         ModestFolderViewPrivate *priv;
3358
3359         g_return_val_if_fail (self && MODEST_IS_FOLDER_VIEW(self), NULL);
3360
3361         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
3362
3363         return (const gchar *) priv->visible_account_id;
3364 }
3365
3366 static gboolean
3367 find_inbox_iter (GtkTreeModel *model, GtkTreeIter *iter, GtkTreeIter *inbox_iter)
3368 {
3369         do {
3370                 GtkTreeIter child;
3371                 TnyFolderType type = TNY_FOLDER_TYPE_UNKNOWN;
3372
3373                 gtk_tree_model_get (model, iter,
3374                                     TYPE_COLUMN,
3375                                     &type, -1);
3376
3377                 gboolean result = FALSE;
3378                 if (type == TNY_FOLDER_TYPE_INBOX) {
3379                         result = TRUE;
3380                 }
3381                 if (result) {
3382                         *inbox_iter = *iter;
3383                         return TRUE;
3384                 }
3385
3386                 if (gtk_tree_model_iter_children (model, &child, iter)) {
3387                         if (find_inbox_iter (model, &child, inbox_iter))
3388                                 return TRUE;
3389                 }
3390
3391         } while (gtk_tree_model_iter_next (model, iter));
3392
3393         return FALSE;
3394 }
3395
3396
3397
3398
3399 void
3400 modest_folder_view_select_first_inbox_or_local (ModestFolderView *self)
3401 {
3402         GtkTreeModel *model;
3403         GtkTreeIter iter, inbox_iter;
3404         GtkTreeSelection *sel;
3405         GtkTreePath *path = NULL;
3406
3407         g_return_if_fail (self && MODEST_IS_FOLDER_VIEW(self));
3408
3409         model = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
3410         if (!model)
3411                 return;
3412
3413         expand_root_items (self);
3414         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
3415
3416         if (!gtk_tree_model_get_iter_first (model, &iter)) {
3417                 g_warning ("%s: model is empty", __FUNCTION__);
3418                 return;
3419         }
3420
3421         if (find_inbox_iter (model, &iter, &inbox_iter))
3422                 path = gtk_tree_model_get_path (model, &inbox_iter);
3423         else
3424                 path = gtk_tree_path_new_first ();
3425
3426         /* Select the row and free */
3427         gtk_tree_view_set_cursor (GTK_TREE_VIEW (self), path, NULL, FALSE);
3428         gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (self), path, NULL, FALSE, 0.0, 0.0);
3429         gtk_tree_path_free (path);
3430
3431         /* set focus */
3432         gtk_widget_grab_focus (GTK_WIDGET(self));
3433 }
3434
3435
3436 /* recursive */
3437 static gboolean
3438 find_folder_iter (GtkTreeModel *model, GtkTreeIter *iter, GtkTreeIter *folder_iter,
3439                   TnyFolder* folder)
3440 {
3441         do {
3442                 GtkTreeIter child;
3443                 TnyFolderType type = TNY_FOLDER_TYPE_UNKNOWN;
3444                 TnyFolder* a_folder;
3445                 gchar *name = NULL;
3446
3447                 gtk_tree_model_get (model, iter,
3448                                     INSTANCE_COLUMN, &a_folder,
3449                                     NAME_COLUMN, &name,
3450                                     TYPE_COLUMN, &type,
3451                                     -1);
3452                 g_free (name);
3453
3454                 if (folder == a_folder) {
3455                         g_object_unref (a_folder);
3456                         *folder_iter = *iter;
3457                         return TRUE;
3458                 }
3459                 g_object_unref (a_folder);
3460
3461                 if (gtk_tree_model_iter_children (model, &child, iter)) {
3462                         if (find_folder_iter (model, &child, folder_iter, folder))
3463                                 return TRUE;
3464                 }
3465
3466         } while (gtk_tree_model_iter_next (model, iter));
3467
3468         return FALSE;
3469 }
3470
3471 #ifndef MODEST_TOOLKIT_HILDON2
3472 static void
3473 on_row_inserted_maybe_select_folder (GtkTreeModel *tree_model,
3474                                      GtkTreePath *path,
3475                                      GtkTreeIter *iter,
3476                                      ModestFolderView *self)
3477 {
3478         ModestFolderViewPrivate *priv = NULL;
3479         GtkTreeSelection *sel;
3480         TnyFolderType type = TNY_FOLDER_TYPE_UNKNOWN;
3481         GObject *instance = NULL;
3482
3483         if (!MODEST_IS_FOLDER_VIEW(self))
3484                 return;
3485
3486         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (self);
3487
3488         priv->reexpand = TRUE;
3489
3490         gtk_tree_model_get (tree_model, iter,
3491                             TYPE_COLUMN, &type,
3492                             INSTANCE_COLUMN, &instance,
3493                             -1);
3494
3495         if (!instance)
3496                 return;
3497
3498         if (type == TNY_FOLDER_TYPE_INBOX && priv->folder_to_select == NULL) {
3499                 priv->folder_to_select = g_object_ref (instance);
3500         }
3501         g_object_unref (instance);
3502
3503         if (priv->folder_to_select) {
3504
3505                 if (!modest_folder_view_select_folder (self, priv->folder_to_select,
3506                                                        FALSE)) {
3507                         GtkTreePath *path;
3508                         path = gtk_tree_model_get_path (tree_model, iter);
3509                         gtk_tree_view_expand_to_path (GTK_TREE_VIEW(self), path);
3510
3511                         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
3512
3513                         gtk_tree_selection_select_iter (sel, iter);
3514                         gtk_tree_view_set_cursor (GTK_TREE_VIEW(self), path, NULL, FALSE);
3515
3516                         gtk_tree_path_free (path);
3517                 }
3518
3519                 /* Disable next */
3520                 modest_folder_view_disable_next_folder_selection (self);
3521
3522                 /* Refilter the model */
3523                 gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (tree_model));
3524         }
3525 }
3526 #endif
3527
3528 void
3529 modest_folder_view_disable_next_folder_selection (ModestFolderView *self)
3530 {
3531         ModestFolderViewPrivate *priv;
3532
3533         g_return_if_fail (self && MODEST_IS_FOLDER_VIEW(self));
3534
3535         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (self);
3536
3537         if (priv->folder_to_select)
3538                 g_object_unref(priv->folder_to_select);
3539
3540         priv->folder_to_select = NULL;
3541 }
3542
3543 gboolean
3544 modest_folder_view_select_folder (ModestFolderView *self, TnyFolder *folder,
3545                                   gboolean after_change)
3546 {
3547         GtkTreeModel *model;
3548         GtkTreeIter iter, folder_iter;
3549         GtkTreeSelection *sel;
3550         ModestFolderViewPrivate *priv = NULL;
3551
3552         g_return_val_if_fail (self && MODEST_IS_FOLDER_VIEW (self), FALSE);
3553         g_return_val_if_fail (folder && TNY_IS_FOLDER (folder), FALSE);
3554
3555         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (self);
3556
3557         if (after_change) {
3558                 sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
3559                 gtk_tree_selection_unselect_all (sel);
3560
3561                 if (priv->folder_to_select)
3562                         g_object_unref(priv->folder_to_select);
3563                 priv->folder_to_select = TNY_FOLDER(g_object_ref(folder));
3564                 return TRUE;
3565         }
3566
3567         model = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
3568         if (!model)
3569                 return FALSE;
3570
3571
3572         /* Refilter the model, before selecting the folder */
3573         gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (model));
3574
3575         if (!gtk_tree_model_get_iter_first (model, &iter)) {
3576                 g_warning ("%s: model is empty", __FUNCTION__);
3577                 return FALSE;
3578         }
3579
3580         if (find_folder_iter (model, &iter, &folder_iter, folder)) {
3581                 GtkTreePath *path;
3582
3583                 path = gtk_tree_model_get_path (model, &folder_iter);
3584                 gtk_tree_view_expand_to_path (GTK_TREE_VIEW(self), path);
3585
3586                 sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
3587                 gtk_tree_selection_select_iter (sel, &folder_iter);
3588                 gtk_tree_view_set_cursor (GTK_TREE_VIEW(self), path, NULL, FALSE);
3589
3590                 gtk_tree_path_free (path);
3591                 return TRUE;
3592         }
3593         return FALSE;
3594 }
3595
3596
3597 void
3598 modest_folder_view_copy_selection (ModestFolderView *self)
3599 {
3600         g_return_if_fail (self && MODEST_IS_FOLDER_VIEW(self));
3601
3602         /* Copy selection */
3603         _clipboard_set_selected_data (self, FALSE);
3604 }
3605
3606 void
3607 modest_folder_view_cut_selection (ModestFolderView *folder_view)
3608 {
3609         ModestFolderViewPrivate *priv = NULL;
3610         GtkTreeModel *model = NULL;
3611         const gchar **hidding = NULL;
3612         guint i, n_selected;
3613
3614         g_return_if_fail (folder_view && MODEST_IS_FOLDER_VIEW (folder_view));
3615         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (folder_view);
3616
3617         /* Copy selection */
3618         if (!_clipboard_set_selected_data (folder_view, TRUE))
3619                 return;
3620
3621         /* Get hidding ids */
3622         hidding = modest_email_clipboard_get_hidding_ids (priv->clipboard, &n_selected);
3623
3624         /* Clear hidding array created by previous cut operation */
3625         _clear_hidding_filter (MODEST_FOLDER_VIEW (folder_view));
3626
3627         /* Copy hidding array */
3628         priv->n_selected = n_selected;
3629         priv->hidding_ids = g_malloc0(sizeof(gchar *) * n_selected);
3630         for (i=0; i < n_selected; i++)
3631                 priv->hidding_ids[i] = g_strdup(hidding[i]);
3632
3633         /* Hide cut folders */
3634         model = gtk_tree_view_get_model (GTK_TREE_VIEW (folder_view));
3635         gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (model));
3636 }
3637
3638 void
3639 modest_folder_view_copy_model (ModestFolderView *folder_view_src,
3640                                ModestFolderView *folder_view_dst)
3641 {
3642         GtkTreeModel *filter_model = NULL;
3643         GtkTreeModel *model = NULL;
3644         GtkTreeModel *new_filter_model = NULL;
3645
3646         g_return_if_fail (folder_view_src && MODEST_IS_FOLDER_VIEW (folder_view_src));
3647         g_return_if_fail (folder_view_dst && MODEST_IS_FOLDER_VIEW (folder_view_dst));
3648
3649         /* Get src model*/
3650         filter_model = gtk_tree_view_get_model (GTK_TREE_VIEW (folder_view_src));
3651         model = gtk_tree_model_filter_get_model (GTK_TREE_MODEL_FILTER(filter_model));
3652
3653         /* Build new filter model */
3654         new_filter_model = gtk_tree_model_filter_new (model, NULL);
3655         gtk_tree_model_filter_set_visible_func (GTK_TREE_MODEL_FILTER (new_filter_model),
3656                                                 filter_row,
3657                                                 folder_view_dst,
3658                                                 NULL);
3659         /* Set copied model */
3660         gtk_tree_view_set_model (GTK_TREE_VIEW (folder_view_dst), new_filter_model);
3661 #ifndef MODEST_TOOLKIT_HILDON2
3662         g_signal_connect (G_OBJECT(new_filter_model), "row-inserted",
3663                           (GCallback) on_row_inserted_maybe_select_folder, folder_view_dst);
3664 #endif
3665
3666         /* Free */
3667         g_object_unref (new_filter_model);
3668 }
3669
3670 void
3671 modest_folder_view_show_non_move_folders (ModestFolderView *folder_view,
3672                                           gboolean show)
3673 {
3674         GtkTreeModel *model = NULL;
3675         ModestFolderViewPrivate* priv;
3676
3677         g_return_if_fail (folder_view && MODEST_IS_FOLDER_VIEW (folder_view));
3678
3679         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(folder_view);
3680         priv->show_non_move = show;
3681 /*      modest_folder_view_update_model(folder_view, */
3682 /*                                      TNY_ACCOUNT_STORE(modest_runtime_get_account_store())); */
3683
3684         /* Hide special folders */
3685         model = gtk_tree_view_get_model (GTK_TREE_VIEW (folder_view));
3686         if (GTK_IS_TREE_MODEL_FILTER (model)) {
3687                 gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (model));
3688         }
3689 }
3690
3691 /* Returns FALSE if it did not selected anything */
3692 static gboolean
3693 _clipboard_set_selected_data (ModestFolderView *folder_view,
3694                               gboolean delete)
3695 {
3696         ModestFolderViewPrivate *priv = NULL;
3697         TnyFolderStore *folder = NULL;
3698         gboolean retval = FALSE;
3699