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[modest] / src / modest-ui-dimming-rules.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 #ifdef HAVE_CONFIG_H
31 #include <config.h>
32 #endif /*HAVE_CONFIG_H*/
33
34 #include <string.h>
35 #include "modest-ui-dimming-rules.h"
36 #include "modest-dimming-rule.h"
37 #include "modest-tny-folder.h"
38 #include "modest-text-utils.h"
39 #include <widgets/modest-attachments-view.h>
40 #include <modest-runtime.h>
41 #include <tny-simple-list.h>
42
43
44 static gboolean _folder_is_any_of_type (TnyFolder *folder, TnyFolderType types[], guint ntypes);
45 static gboolean _invalid_msg_selected (ModestMainWindow *win, gboolean unique, ModestDimmingRule *rule);
46 static gboolean _invalid_attach_selected (ModestWindow *win, gboolean unique, gboolean for_view, ModestDimmingRule *rule);
47 static gboolean _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule);
48 static gboolean _clipboard_is_empty (ModestWindow *win);
49 static gboolean _invalid_clipboard_selected (ModestWindow *win, ModestDimmingRule *rule);
50 static gboolean _already_opened_msg (ModestWindow *win, guint *n_messages);
51 static gboolean _selected_msg_marked_as (ModestWindow *win, TnyHeaderFlags mask, gboolean opposite);
52 static gboolean _selected_folder_not_writeable (ModestMainWindow *win);
53 static gboolean _selected_folder_is_snd_level (ModestMainWindow *win);
54 static gboolean _selected_folder_is_any_of_type (ModestWindow *win, TnyFolderType types[], guint ntypes);
55 static gboolean _selected_folder_is_root_or_inbox (ModestMainWindow *win);
56 static gboolean _selected_folder_is_MMC_or_POP_root (ModestMainWindow *win);
57 static gboolean _selected_folder_is_root (ModestMainWindow *win);
58 static gboolean _selected_folder_is_empty (ModestMainWindow *win);
59 static gboolean _selected_folder_is_same_as_source (ModestWindow *win);
60 static gboolean _msg_download_in_progress (ModestMsgViewWindow *win);
61 static gboolean _msg_download_completed (ModestMainWindow *win);
62 static gboolean _selected_msg_sent_in_progress (ModestWindow *win);
63 static gboolean _sending_in_progress (ModestWindow *win);
64 static gboolean _marked_as_deleted (ModestWindow *win);
65 static gboolean _invalid_folder_for_purge (ModestWindow *win, ModestDimmingRule *rule);
66 static gboolean _transfer_mode_enabled (ModestWindow *win);
67
68
69 gboolean 
70 modest_ui_dimming_rules_on_new_msg (ModestWindow *win, gpointer user_data)
71 {
72         ModestDimmingRule *rule = NULL;
73         gboolean dimmed = FALSE;
74
75         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
76         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
77         rule = MODEST_DIMMING_RULE (user_data);
78                 
79         /* Check dimmed rule */ 
80         if (!dimmed) {
81                 dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW(win));
82                 if (dimmed)
83                         modest_dimming_rule_set_notification (rule, "");
84         }
85
86         return dimmed;
87 }
88
89 gboolean 
90 modest_ui_dimming_rules_on_csm_new_folder (ModestWindow *win, gpointer user_data)
91 {
92         ModestDimmingRule *rule = NULL;
93         gboolean dimmed = FALSE;
94
95         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
96         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
97         rule = MODEST_DIMMING_RULE (user_data);
98
99         /* Check common new folder menu item dimming rules */   
100         dimmed = modest_ui_dimming_rules_on_new_folder (win, user_data);
101         
102         /* Check CSM specific dimming rules */
103         if (!dimmed) {
104                 dimmed = _selected_folder_is_snd_level (MODEST_MAIN_WINDOW(win));
105                 if (dimmed)
106                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
107         }
108         
109         return dimmed;
110 }
111
112 gboolean 
113 modest_ui_dimming_rules_on_new_folder (ModestWindow *win, gpointer user_data)
114 {
115         ModestDimmingRule *rule = NULL;
116         GtkWidget *folder_view = NULL;
117         TnyFolderStore *parent_folder = NULL;
118         gboolean dimmed = FALSE;
119
120         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
121         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
122         rule = MODEST_DIMMING_RULE (user_data);
123
124         /* Get selected folder as parent of new folder to create */
125         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
126                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
127         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
128         if (!parent_folder)
129                 return TRUE;
130         
131         if (TNY_IS_ACCOUNT (parent_folder)) {
132                 /* If it's the local account then do not dim */
133                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
134                         dimmed = FALSE;
135                 } else {
136                         const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
137                         /* If it's POP then dim */
138                         dimmed = (modest_protocol_info_get_transport_store_protocol (proto_str) == 
139                                   MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
140                         if (dimmed)
141                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
142                 }
143         } else {
144                 /* TODO: the specs say that only one level of subfolder is allowed, is this true ? */
145                 
146                 TnyFolderType types[3];
147                                 
148                 types[0] = TNY_FOLDER_TYPE_DRAFTS; 
149                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
150                 types[2] = TNY_FOLDER_TYPE_SENT;
151
152                 /* Apply folder rules */        
153                 if (!dimmed) {
154                         dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
155                         if (dimmed)
156                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
157                 }
158                 if (!dimmed) {
159                         dimmed = _selected_folder_is_any_of_type (win, types, 3);
160                         if (dimmed)
161                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
162                 }
163         }
164         g_object_unref (parent_folder);
165
166         return dimmed;
167 }
168
169 gboolean 
170 modest_ui_dimming_rules_on_delete (ModestWindow *win, gpointer user_data)
171 {
172         ModestDimmingRule *rule = NULL;
173         GtkWidget *folder_view = NULL;
174         GtkWidget *header_view = NULL;  
175         gboolean dimmed = FALSE;
176
177         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
178         rule = MODEST_DIMMING_RULE (user_data);
179         
180         if (MODEST_IS_MAIN_WINDOW (win)) {
181                 /* Get the folder view */
182                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
183                                                                    MODEST_WIDGET_TYPE_FOLDER_VIEW);
184                 
185                 /* Get header view */
186                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
187                                                            MODEST_WIDGET_TYPE_HEADER_VIEW);
188
189                 if (header_view && gtk_widget_is_focus (header_view)) 
190                         dimmed = modest_ui_dimming_rules_on_delete_msg (win, rule);
191
192                 if (folder_view && gtk_widget_is_focus (folder_view)) 
193                         dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
194         } else {
195                 dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
196         }
197
198         return dimmed;
199 }
200
201
202
203 gboolean 
204 modest_ui_dimming_rules_on_delete_folder (ModestWindow *win, gpointer user_data)
205 {
206         ModestDimmingRule *rule = NULL;
207         TnyFolderType types[6];
208         gboolean dimmed = FALSE;
209
210         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
211         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
212         rule = MODEST_DIMMING_RULE (user_data);
213
214         types[0] = TNY_FOLDER_TYPE_DRAFTS; 
215         types[1] = TNY_FOLDER_TYPE_OUTBOX;
216         types[2] = TNY_FOLDER_TYPE_SENT;
217         types[3] = TNY_FOLDER_TYPE_INBOX;
218         types[4] = TNY_FOLDER_TYPE_ROOT;
219         types[5] = TNY_FOLDER_TYPE_ARCHIVE;
220
221                 
222         /* Check dimmed rule */ 
223         if (!dimmed) {
224                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
225                 if (dimmed)
226                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
227         }
228         if (!dimmed) {
229                 dimmed = _selected_folder_is_any_of_type (win, types, 6);
230                 if (dimmed)
231                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
232         }
233         if (!dimmed) {
234                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
235                 if (dimmed)
236                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
237         }
238         if (!dimmed) {
239                 dimmed = _selected_folder_is_MMC_or_POP_root (MODEST_MAIN_WINDOW(win));
240                 if (dimmed)
241                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
242         }
243
244         return dimmed;
245 }
246
247 gboolean
248 modest_ui_dimming_rules_on_sort (ModestWindow *win, gpointer user_data)
249 {
250         ModestDimmingRule *rule = NULL;
251         gboolean dimmed = FALSE;
252
253         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
254         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
255         rule = MODEST_DIMMING_RULE (user_data);
256                 
257         /* Check dimmed rule */ 
258         if (!dimmed) {
259                 dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
260                 if (dimmed)
261                         modest_dimming_rule_set_notification (rule, "");
262         }
263
264         return dimmed;
265         
266 }
267
268 gboolean 
269 modest_ui_dimming_rules_on_rename_folder (ModestWindow *win, gpointer user_data)
270 {
271         ModestDimmingRule *rule = NULL;
272         TnyFolderType types[3];
273         gboolean dimmed = FALSE;
274
275         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
276         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
277         rule = MODEST_DIMMING_RULE (user_data);
278
279         types[0] = TNY_FOLDER_TYPE_DRAFTS; 
280         types[1] = TNY_FOLDER_TYPE_OUTBOX;
281         types[2] = TNY_FOLDER_TYPE_SENT;
282         
283         /* Check dimmed rule */ 
284         if (!dimmed) {
285                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
286                 if (dimmed)
287                         modest_dimming_rule_set_notification (rule, "");
288         }
289         if (!dimmed) {
290                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
291                 if (dimmed)
292                         modest_dimming_rule_set_notification (rule, "");
293         }
294         if (!dimmed) {
295                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
296                 if (dimmed)
297                         modest_dimming_rule_set_notification (rule, "");
298         }
299
300         return dimmed;
301 }
302
303 gboolean 
304 modest_ui_dimming_rules_on_open_msg (ModestWindow *win, gpointer user_data)
305 {
306         ModestDimmingRule *rule = NULL;
307         gboolean dimmed = FALSE;
308
309         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
310         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
311         rule = MODEST_DIMMING_RULE (user_data);
312                 
313         /* Check dimmed rule */ 
314         if (!dimmed) {
315                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
316         }
317         if (!dimmed) {
318                 dimmed = _marked_as_deleted (win);
319                 if (dimmed)
320                         modest_dimming_rule_set_notification (rule, _("mcen_ib_message_already_deleted"));
321         }
322         if (!dimmed) {
323                 dimmed = _selected_msg_sent_in_progress (win);
324                 if (dimmed)
325                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_open_while_sent"));
326         }
327
328         return dimmed;
329 }
330
331 gboolean 
332 modest_ui_dimming_rules_on_reply_msg (ModestWindow *win, gpointer user_data)
333 {
334         ModestDimmingRule *rule = NULL;
335         gboolean dimmed = FALSE;
336         TnyFolderType types[3];
337
338         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
339         rule = MODEST_DIMMING_RULE (user_data);
340
341         /* main window dimming rules */
342         if (MODEST_IS_MAIN_WINDOW(win)) {
343                 
344                 types[0] = TNY_FOLDER_TYPE_DRAFTS; 
345                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
346                 types[2] = TNY_FOLDER_TYPE_ROOT;
347                 
348                 /* Check dimmed rule */ 
349                 if (!dimmed) {
350                         dimmed = _selected_folder_is_any_of_type (win, types, 3);                       
351                         if (dimmed)
352                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
353                 }
354                 if (!dimmed) {
355                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));                   
356                         if (dimmed)
357                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_nothing_to_reply"));
358                 }
359                 if (!dimmed) {
360                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, rule);
361                 }
362         /* msg view window dimming rules */
363         } else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
364                 
365                 /* Check dimmed rule */ 
366                 if (!dimmed) {
367                         dimmed = _transfer_mode_enabled (win);                  
368                         if (dimmed)
369                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
370                 }
371                 if (!dimmed) {
372                         dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW(win));
373                         if (dimmed)
374                                 modest_dimming_rule_set_notification (rule, "");
375                 }
376         }
377         
378         return dimmed;
379 }
380
381
382 gboolean 
383 modest_ui_dimming_rules_on_contents_msg (ModestWindow *win, gpointer user_data)
384 {
385         ModestDimmingRule *rule = NULL;
386         gboolean dimmed = FALSE;
387
388         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
389         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
390         rule = MODEST_DIMMING_RULE (user_data);
391                 
392         /* Check dimmed rule */ 
393         if (!dimmed) {
394                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
395         }
396         if (!dimmed) {
397                 dimmed = _msg_download_completed (MODEST_MAIN_WINDOW(win));
398                 if (dimmed)
399                         modest_dimming_rule_set_notification (rule, "");
400         }
401
402         return dimmed;
403 }
404
405 gboolean 
406 modest_ui_dimming_rules_always_dimmed (ModestWindow *win, gpointer user_data)
407 {
408         gboolean dimmed = FALSE;
409
410         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
411                 
412         /* Check dimmed rule */ 
413         if (!dimmed)
414                 dimmed = TRUE;
415
416         return dimmed;
417 }
418
419 gboolean 
420 modest_ui_dimming_rules_on_delete_msg (ModestWindow *win, gpointer user_data)
421 {
422         ModestDimmingRule *rule = NULL;
423         guint n_messages = 0;
424         gboolean dimmed = FALSE;
425
426         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
427         rule = MODEST_DIMMING_RULE (user_data);
428         
429         /* Check dimmed rule */         
430         if (MODEST_IS_MAIN_WINDOW (win)) {
431                 if (!dimmed) {
432                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));                   
433                         if (dimmed)
434                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_nothing_to_delete"));
435                 }
436                 if (!dimmed) {
437                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
438                 }
439                 if (!dimmed) {
440                         dimmed = _already_opened_msg (win, &n_messages);
441                         if (dimmed) {
442                                 gchar *num = g_strdup_printf ("%d", n_messages);
443                                 gchar *message = g_strdup_printf(_("mcen_nc_unable_to_delete_n_messages"), num);
444 /*                              modest_dimming_rule_set_notification (rule, _("mcen_nc_unable_to_delete_n_messages")); */
445                                 modest_dimming_rule_set_notification (rule, message);
446                                 g_free(message);
447                                 g_free(num);
448                         }
449                 }
450                 if (!dimmed) {
451                         dimmed = _marked_as_deleted (win);
452                         if (dimmed)
453                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_message_already_deleted"));
454                 }
455                 if (!dimmed) {
456                         dimmed = _selected_msg_sent_in_progress (win);
457                         if (dimmed)
458                                 modest_dimming_rule_set_notification (rule, _("ckct_ib_unable_to_delete]"));
459                 }
460         } 
461         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
462                 if (!dimmed) {
463                         dimmed = _transfer_mode_enabled (win);                  
464                         if (dimmed)
465                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
466                 }
467                 if (!dimmed) {
468                         dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW(win));
469                         if (dimmed) {
470                                 gchar *num = g_strdup("1");
471                                 gchar *message = g_strdup_printf(_("mcen_nc_unable_to_delete_n_messages"), num);
472 /*                              modest_dimming_rule_set_notification (rule, _("mcen_nc_unable_to_delete_n_messages")); */
473                                 modest_dimming_rule_set_notification (rule, message);
474                                 g_free(message);
475                                 g_free(num);
476                         }
477                 }
478         }
479
480         return dimmed;
481 }
482
483 gboolean 
484 modest_ui_dimming_rules_on_details (ModestWindow *win, gpointer user_data)
485 {
486         ModestDimmingRule *rule = NULL;
487         GtkWidget *header_view = NULL;
488         gboolean dimmed = FALSE;
489
490         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
491         rule = MODEST_DIMMING_RULE (user_data);
492         
493         /* main window dimming rules */
494         if (MODEST_IS_MAIN_WINDOW(win)) {
495                                 
496                 /* Check dimmed rule */
497                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
498                                                                    MODEST_WIDGET_TYPE_HEADER_VIEW);
499                 
500                 /* If the header view has the focus: */
501                 if (header_view && gtk_widget_is_focus (header_view)) {
502                         /* Check dimmed rule */ 
503                         if (!dimmed)
504                                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
505                 }
506                 else {
507                         /* If the folder view has the focus: */
508                         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
509                                 MODEST_WIDGET_TYPE_FOLDER_VIEW);
510                         if (folder_view && gtk_widget_is_focus (folder_view)) {
511                                 TnyFolderStore *folder_store
512                                         = modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
513                                 if (folder_store) {
514                                         /* Only enable for folders, not accounts,
515                                          * though the UI spec is not clear about that.
516                                          * If we enable this for accounts then we must 
517                                          * add code to handle them in modest_ui_actions_on_details(). */
518                                         if (!TNY_IS_FOLDER(folder_store)) {
519                                                 dimmed = TRUE;
520                                                 modest_dimming_rule_set_notification (rule, "");
521                                         }
522
523                                         g_object_unref (folder_store);
524                                 }
525                         }
526
527                 }
528
529         /* msg view window dimming rules */
530         } else {
531
532                 /* Check dimmed rule */ 
533                 if (!dimmed) {
534                         dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW(win));
535                         if (dimmed)
536                                 modest_dimming_rule_set_notification (rule, "");
537                 }
538         }
539
540         return dimmed;
541 }
542
543
544 gboolean 
545 modest_ui_dimming_rules_on_mark_as_read_msg (ModestWindow *win, gpointer user_data)
546 {
547         ModestDimmingRule *rule = NULL;
548         TnyHeaderFlags flags;
549         gboolean dimmed = FALSE;
550
551         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
552         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
553         rule = MODEST_DIMMING_RULE (user_data);
554         
555         flags = TNY_HEADER_FLAG_SEEN; 
556
557         /* Check dimmed rule */ 
558         if (!dimmed) {
559                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
560         }
561         if (!dimmed) {
562                 dimmed = _selected_msg_marked_as (win, flags, FALSE);
563                 if (dimmed)
564                         modest_dimming_rule_set_notification (rule, "");
565         }       
566
567         return dimmed;
568 }
569
570 gboolean 
571 modest_ui_dimming_rules_on_mark_as_unread_msg (ModestWindow *win, gpointer user_data)
572 {
573         ModestDimmingRule *rule = NULL;
574         TnyHeaderFlags flags;
575         gboolean dimmed = FALSE;
576
577         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
578         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
579         rule = MODEST_DIMMING_RULE (user_data);
580         
581         flags = TNY_HEADER_FLAG_SEEN; 
582
583         /* Check dimmed rule */ 
584         if (!dimmed)
585                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
586         if (!dimmed) {
587                 dimmed = _selected_msg_marked_as (win, flags, TRUE);
588                 if (dimmed)
589                         modest_dimming_rule_set_notification (rule, "");
590         }
591
592         return dimmed;
593 }
594
595 gboolean 
596 modest_ui_dimming_rules_on_move_to (ModestWindow *win, gpointer user_data)
597 {
598         ModestDimmingRule *rule = NULL;
599         gboolean dimmed = FALSE;
600
601         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
602         rule = MODEST_DIMMING_RULE (user_data);
603
604         if (MODEST_IS_MAIN_WINDOW (win)) 
605                 dimmed = modest_ui_dimming_rules_on_main_window_move_to (win, user_data);
606         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) 
607                  dimmed = modest_ui_dimming_rules_on_view_window_move_to (win, user_data);
608
609         return dimmed;
610 }
611
612
613 gboolean 
614 modest_ui_dimming_rules_on_main_window_move_to (ModestWindow *win, gpointer user_data)
615 {
616         GtkWidget *folder_view = NULL;
617         GtkWidget *header_view = NULL;
618         ModestDimmingRule *rule = NULL;
619         guint n_messages = 0;
620         gboolean dimmed = FALSE;
621         
622         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
623         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
624         rule = MODEST_DIMMING_RULE (user_data);
625         
626         /* Get the folder view */
627         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
628                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
629
630         /* Get header view */
631         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
632                                                            MODEST_WIDGET_TYPE_HEADER_VIEW);
633         
634         /* Check diming rules for folders and messages transfer  */
635         if (!dimmed) {
636                 dimmed = _already_opened_msg (win, &n_messages);
637                 if (dimmed) {
638                         gchar *message = g_strdup_printf(_("emev_bd_unabletomove_items"), n_messages);
639                         modest_dimming_rule_set_notification (rule, message);
640                         g_free(message);
641                 }
642         }
643         if (!dimmed) {
644                 if (!gtk_widget_is_focus (folder_view))
645                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
646                 
647         }
648         
649         return dimmed;
650 }
651
652 gboolean 
653 modest_ui_dimming_rules_on_view_window_move_to (ModestWindow *win, gpointer user_data)
654 {
655         ModestDimmingRule *rule = NULL;
656         gboolean dimmed = FALSE;
657
658         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
659         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
660         rule = MODEST_DIMMING_RULE (user_data);
661
662         /* Check dimmed rule */ 
663         if (!dimmed) {
664                 dimmed = _transfer_mode_enabled (win);                  
665                 if (dimmed)
666                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
667         }
668         if (!dimmed) {
669                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW(win));
670                 if (dimmed) 
671                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_move_mail_attachment"));
672         }
673
674         return dimmed;
675 }
676
677 gboolean 
678 modest_ui_dimming_rules_on_find_msg (ModestWindow *win, gpointer user_data)
679 {
680         ModestDimmingRule *rule = NULL;
681         gboolean dimmed = FALSE;
682
683         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
684         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
685         rule = MODEST_DIMMING_RULE (user_data);
686
687         /* Check dimmed rule */ 
688         if (!dimmed) {
689                 dimmed = _transfer_mode_enabled (win);                  
690                 if (dimmed)
691                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
692         }
693
694         return dimmed;
695 }
696
697 gboolean 
698 modest_ui_dimming_rules_on_paste_msgs (ModestWindow *win, gpointer user_data)
699 {
700         ModestDimmingRule *rule = NULL;
701         TnyFolderType types[3];
702         gboolean dimmed = FALSE;
703         
704         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
705         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
706         rule = MODEST_DIMMING_RULE (user_data);
707
708         types[0] = TNY_FOLDER_TYPE_DRAFTS; 
709         types[1] = TNY_FOLDER_TYPE_OUTBOX;
710         types[2] = TNY_FOLDER_TYPE_SENT;
711         
712         /* Check dimmed rule */ 
713         if (!dimmed) {
714                 dimmed = _clipboard_is_empty (win);
715                 if (dimmed)
716                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ecoc_ib_edwin_nothing_to_paste"));
717         }
718         if (!dimmed) {
719                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
720                 if (dimmed)
721                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ckct_ib_unable_to_paste_here"));
722         }
723         if (!dimmed) {
724                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
725                 if (dimmed) {
726                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ckct_ib_unable_to_paste_here"));
727                 }
728         }
729         if (!dimmed) {
730                 dimmed = _selected_folder_is_same_as_source (win);
731                 if (dimmed)
732                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_copy_samefolder"));
733         }
734
735         return dimmed;
736 }
737
738
739 gboolean 
740 modest_ui_dimming_rules_on_select_all (ModestWindow *win, gpointer user_data)
741 {
742         ModestDimmingRule *rule = NULL;
743         gboolean dimmed = FALSE;
744
745         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
746         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
747         rule = MODEST_DIMMING_RULE (user_data);
748
749         /* Check dimmed rule */ 
750         if (!dimmed) {
751                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));                   
752                 if (dimmed)
753                         modest_dimming_rule_set_notification (rule, "");
754         }
755                 
756         return dimmed;
757 }
758
759 gboolean 
760 modest_ui_dimming_rules_on_view_attachments (ModestWindow *win, gpointer user_data)
761 {
762         ModestDimmingRule *rule = NULL;
763         gboolean dimmed = FALSE;
764
765         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
766         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
767         rule = MODEST_DIMMING_RULE (user_data);
768
769         /* Check dimmed rule */ 
770         if (!dimmed) 
771                 dimmed = _invalid_attach_selected (win, TRUE, TRUE, rule);                      
772
773         if (!dimmed) {
774                 dimmed = _purged_attach_selected (win, FALSE, NULL);
775                 if (dimmed) {
776                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
777                 }
778         }
779                 
780         return dimmed;
781 }
782
783 gboolean 
784 modest_ui_dimming_rules_on_save_attachments (ModestWindow *win, gpointer user_data)
785 {
786         ModestDimmingRule *rule = NULL;
787         gboolean dimmed = FALSE;
788
789         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
790         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
791         rule = MODEST_DIMMING_RULE (user_data);
792
793         /* Check dimmed rule */ 
794         if (!dimmed) 
795                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, rule);
796
797         if (!dimmed) {
798                 dimmed = _purged_attach_selected (win, FALSE, NULL);
799                 if (dimmed) {
800                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
801                 }
802         }
803                 
804         return dimmed;
805 }
806
807 gboolean 
808 modest_ui_dimming_rules_on_remove_attachments (ModestWindow *win, gpointer user_data)
809 {
810         ModestDimmingRule *rule = NULL;
811         gboolean dimmed = FALSE;
812
813         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
814         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
815         rule = MODEST_DIMMING_RULE (user_data);
816
817         /* Check in main window if there's only one message selected */
818         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
819                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW (win), TRUE, rule);
820         }
821
822         /* Check in view window if there's any attachment selected */
823         if (!dimmed && MODEST_IS_MSG_VIEW_WINDOW (win)) {
824                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, NULL);
825                 if (dimmed)
826                         modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
827         }
828
829         /* cannot purge in editable drafts nor pop folders */
830         if (!dimmed) {
831                 dimmed = _invalid_folder_for_purge (win, rule);
832         }
833
834         /* Check if the selected message in main window has attachments */
835         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
836                 dimmed = _selected_msg_marked_as (win, TNY_HEADER_FLAG_ATTACHMENTS, TRUE);
837                 if (dimmed)
838                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
839         }
840
841         /* Check if all attachments are already purged */
842         if (!dimmed) {
843                 dimmed = _purged_attach_selected (win, TRUE, rule);
844         }
845
846         /* Check if the message is already downloaded */
847         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
848                 dimmed = !_msg_download_completed (MODEST_MAIN_WINDOW (win));
849                 if (dimmed)
850                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
851         }
852
853
854         return dimmed;
855 }
856
857 gboolean 
858 modest_ui_dimming_rules_on_undo (ModestWindow *win, gpointer user_data)
859 {
860         ModestDimmingRule *rule = NULL;
861         gboolean dimmed = FALSE;
862         
863         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
864         rule = MODEST_DIMMING_RULE (user_data);
865
866         /* Check dimmed rule */ 
867         if (!dimmed) {
868                 dimmed = _clipboard_is_empty (win); 
869                 if (dimmed)
870                         modest_dimming_rule_set_notification (rule, "");
871         }
872                                 
873         return dimmed;  
874 }
875
876 gboolean 
877 modest_ui_dimming_rules_on_cut (ModestWindow *win, gpointer user_data)
878 {
879         ModestDimmingRule *rule = NULL;
880         gboolean dimmed = FALSE;
881         
882         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
883         rule = MODEST_DIMMING_RULE (user_data);
884
885         /* Check common dimming rules */
886         if (!dimmed) {
887                 dimmed = _invalid_clipboard_selected (win, rule);
888         }
889
890         /* Check window specific dimming rules */
891         if (MODEST_IS_MAIN_WINDOW (win)) {
892                 if (!dimmed) { 
893                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));                   
894                         if (dimmed)
895                                 modest_dimming_rule_set_notification (rule, "");
896                 }
897                 if (!dimmed) {
898                         dimmed = _selected_msg_sent_in_progress (win);
899                         if (dimmed)
900                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
901                 }
902         }
903         
904         return dimmed;
905 }
906
907 gboolean 
908 modest_ui_dimming_rules_on_copy (ModestWindow *win, gpointer user_data)
909 {
910         ModestDimmingRule *rule = NULL;
911         gboolean dimmed = FALSE;
912         
913         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
914         rule = MODEST_DIMMING_RULE (user_data);
915
916         /* Check common dimming rules */
917         if (!dimmed) {
918                 dimmed = _invalid_clipboard_selected (win, rule);
919         }
920         
921         /* Check window specific dimming rules */
922         if (MODEST_IS_MAIN_WINDOW (win)) {
923                 if (!dimmed) {
924                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));                   
925                         if (dimmed)
926                                 modest_dimming_rule_set_notification (rule, "");
927                 }               
928                 if (!dimmed) {
929                         dimmed = _selected_msg_sent_in_progress (win);
930                         if (dimmed)
931                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
932                 }
933         }
934                 
935         return dimmed;
936 }
937
938 gboolean 
939 modest_ui_dimming_rules_on_view_previous (ModestWindow *win, gpointer user_data)
940 {
941         ModestDimmingRule *rule = NULL;
942         gboolean dimmed = FALSE;
943         
944         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
945         rule = MODEST_DIMMING_RULE (user_data);
946
947         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
948
949         /* Check dimmed rule */ 
950         if (!dimmed) {
951                 dimmed = _transfer_mode_enabled (win);                  
952                 if (dimmed)
953                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
954         }
955         if (!dimmed) {
956                 dimmed = modest_msg_view_window_first_message_selected (MODEST_MSG_VIEW_WINDOW(win));
957 /*              if (dimmed) */
958 /*                      modest_dimming_rule_set_notification (rule, ""); */
959         }               
960
961         return dimmed;
962 }
963
964 gboolean 
965 modest_ui_dimming_rules_on_view_next (ModestWindow *win, gpointer user_data)
966 {
967         ModestDimmingRule *rule = NULL;
968         gboolean dimmed = FALSE;
969
970         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
971         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
972         rule = MODEST_DIMMING_RULE (user_data);
973
974         /* Check dimmed rule */ 
975         if (!dimmed) {
976                 dimmed = _transfer_mode_enabled (win);                  
977                 if (dimmed)
978                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
979         }
980         if (!dimmed) {
981                 dimmed = modest_msg_view_window_last_message_selected (MODEST_MSG_VIEW_WINDOW(win));
982 /*              if (dimmed) */
983 /*                      modest_dimming_rule_set_notification (rule, ""); */
984         }               
985
986         return dimmed;
987 }
988
989
990 gboolean 
991 modest_ui_dimming_rules_on_tools_smtp_servers (ModestWindow *win, gpointer user_data)
992 {
993         const gboolean dimmed = 
994                 !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(), 
995                         TRUE);  
996                 
997         return dimmed;
998 }
999
1000 gboolean 
1001 modest_ui_dimming_rules_on_cancel_sending (ModestWindow *win, gpointer user_data)
1002 {
1003         ModestDimmingRule *rule = NULL;
1004         TnyFolderType types[1];
1005         guint n_messages = 0;
1006         gboolean dimmed = FALSE;
1007
1008         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1009         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1010         rule = MODEST_DIMMING_RULE (user_data);
1011
1012         types[0] = TNY_FOLDER_TYPE_OUTBOX; 
1013
1014         /* Check dimmed rules */        
1015         if (!dimmed) {
1016                 dimmed = _already_opened_msg (win, &n_messages);
1017                 if (dimmed) 
1018                         modest_dimming_rule_set_notification (rule, _("mcen_ib_message_unableto_cancel_send"));
1019         }
1020         if (!dimmed) {
1021                 dimmed = !_selected_folder_is_any_of_type (win, types, 1);
1022                 if (dimmed) 
1023                         modest_dimming_rule_set_notification (rule, "");
1024         }
1025         if (!dimmed) {
1026                 dimmed = !_sending_in_progress (win);
1027                 if (dimmed)
1028                         modest_dimming_rule_set_notification (rule, "");
1029         }
1030
1031         return dimmed;
1032 }
1033
1034 gboolean 
1035 modest_ui_dimming_rules_on_send_receive (ModestWindow *win, gpointer user_data)
1036 {
1037         ModestDimmingRule *rule = NULL;
1038         gboolean dimmed = FALSE;
1039         
1040         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1041         rule = MODEST_DIMMING_RULE (user_data);
1042  
1043         /* Check dimmed rule */ 
1044         if (!dimmed) {
1045                 dimmed = !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(), 
1046                                                           TRUE);        
1047                 if (dimmed)
1048                         modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
1049         }
1050
1051         return dimmed;
1052 }
1053
1054 gboolean
1055 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
1056 {
1057         ModestDimmingRule *rule = NULL;
1058         gboolean dimmed = FALSE;
1059
1060         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1061         rule = MODEST_DIMMING_RULE (user_data);
1062
1063         /* Check dimmed rule */
1064         if (!dimmed) {
1065                 GtkClipboard *clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
1066                 gchar *selection = NULL;
1067                 selection = gtk_clipboard_wait_for_text (clipboard);
1068
1069                 dimmed = !((selection != NULL) && (modest_text_utils_validate_recipient (selection, NULL)));
1070         }
1071
1072         return dimmed;
1073 }
1074
1075 /* *********************** static utility functions ******************** */
1076
1077 static gboolean 
1078 _marked_as_deleted (ModestWindow *win)
1079 {
1080         gboolean result = FALSE;
1081         TnyHeaderFlags flags;
1082
1083         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1084         
1085         flags = TNY_HEADER_FLAG_DELETED; 
1086
1087         /* Check dimmed rule */ 
1088         result = _selected_msg_marked_as (win, flags, FALSE);
1089         
1090         return result;
1091 }
1092
1093 static gboolean
1094 _selected_folder_not_writeable (ModestMainWindow *win)
1095 {
1096         GtkWidget *folder_view = NULL;
1097         TnyFolderStore *parent_folder = NULL;
1098         ModestTnyFolderRules rules;
1099         gboolean result = FALSE;
1100
1101         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1102
1103         /* Get folder view */
1104         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1105                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1106         /* If no folder view, always dimmed */
1107         if (!folder_view)
1108                 return TRUE;
1109         
1110         /* Get selected folder as parent of new folder to create */
1111         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1112         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1113                 if (parent_folder)
1114                         g_object_unref (parent_folder);
1115                 return TRUE;
1116         }
1117         
1118         /* Check dimmed rule */ 
1119         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1120         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
1121
1122         /* free */
1123         g_object_unref (parent_folder);
1124
1125         return result;
1126 }
1127
1128 static gboolean
1129 _selected_folder_is_root_or_inbox (ModestMainWindow *win)
1130 {
1131         TnyFolderType types[2];
1132         gboolean result = FALSE;
1133
1134         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1135
1136         types[0] = TNY_FOLDER_TYPE_ROOT; 
1137         types[1] = TNY_FOLDER_TYPE_INBOX; 
1138
1139         /* Check folder type */
1140         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 2);
1141
1142         /* Check pop and MMC accounts */
1143         if (!result) {
1144                 result = _selected_folder_is_MMC_or_POP_root (win);
1145         }
1146                 
1147         return result;
1148 }
1149
1150
1151 static gboolean
1152 _selected_folder_is_root (ModestMainWindow *win)
1153 {
1154         TnyFolderType types[1];
1155         gboolean result = FALSE;
1156
1157         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1158
1159         types[0] = TNY_FOLDER_TYPE_ROOT; 
1160
1161         /* Check folder type */
1162         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 1);
1163                 
1164         /* Check pop and MMC accounts */
1165         if (!result) {
1166                 result = _selected_folder_is_MMC_or_POP_root (win);
1167         }
1168
1169         return result;
1170 }
1171
1172 static gboolean
1173 _selected_folder_is_MMC_or_POP_root (ModestMainWindow *win)
1174 {
1175         GtkWidget *folder_view = NULL;
1176         TnyFolderStore *parent_folder = NULL;
1177         gboolean result = FALSE;
1178
1179         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1180                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1181         /* Get selected folder as parent of new folder to create */
1182         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1183         if (!parent_folder)
1184                 return TRUE;
1185         
1186         if (TNY_IS_ACCOUNT (parent_folder)) {
1187                 /* If it's the local account then do not dim */
1188                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
1189                         result = FALSE;
1190                 } else {
1191                                 /* If it's the MMC root folder then dim it */
1192                         if (!strcmp (tny_account_get_id (TNY_ACCOUNT (parent_folder)), MODEST_MMC_ACCOUNT_ID)) {
1193                                         result = TRUE;
1194                         } else {
1195                                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
1196                                 /* If it's POP then dim */
1197                                 result = (modest_protocol_info_get_transport_store_protocol (proto_str) == 
1198                                                   MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
1199                         }
1200                 }
1201         }
1202         g_object_unref (parent_folder);
1203
1204         return result;
1205 }
1206
1207
1208 static gboolean
1209 _selected_folder_is_empty (ModestMainWindow *win)
1210 {
1211         GtkWidget *folder_view = NULL;
1212         TnyFolderStore *folder = NULL;
1213         gboolean result = FALSE;
1214
1215         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1216
1217         /* Get folder view */
1218         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1219                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1220         /* If no folder view, always dimmed */
1221         if (!folder_view)
1222                 return TRUE;
1223         
1224         /* Get selected folder as parent of new folder to create */
1225         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1226         if (!(folder && TNY_IS_FOLDER(folder))) {
1227                 if (folder)
1228                         g_object_unref (folder);
1229                 return TRUE;
1230         }
1231         
1232         /* Check folder type */
1233         result = tny_folder_get_all_count (TNY_FOLDER (folder)) == 0;
1234
1235         /* free */
1236         g_object_unref (folder);
1237
1238         return result;
1239 }
1240
1241 static gboolean
1242 _selected_folder_is_same_as_source (ModestWindow *win)
1243 {
1244         ModestEmailClipboard *clipboard = NULL;
1245         GtkWidget *folder_view = NULL;
1246         TnyFolderStore *folder = NULL;
1247         gboolean result = FALSE;
1248
1249         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1250
1251         /* Get folder view */
1252         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1253                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1254         if (!folder_view)
1255                 return FALSE;
1256         
1257         /* Get selected folder as destination folder */
1258         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1259         if (!(folder && TNY_IS_FOLDER(folder))) {
1260                 result = FALSE;
1261                 goto frees;
1262         }
1263         
1264         /* Check clipboard is cleared */
1265         clipboard = modest_runtime_get_email_clipboard ();
1266         if (modest_email_clipboard_cleared (clipboard)) {
1267                 result = FALSE;
1268                 goto frees;
1269         }
1270                 
1271         /* Check source folder */
1272         result = modest_email_clipboard_check_source_folder (clipboard, 
1273                                                              (const TnyFolder *) folder);
1274         
1275         /* Free */
1276  frees:
1277         g_object_unref (folder);
1278         
1279         return result;
1280 }
1281
1282 static gboolean
1283 _selected_folder_is_any_of_type (ModestWindow *win,
1284                                  TnyFolderType types[], 
1285                                  guint ntypes)
1286 {
1287         GtkWidget *folder_view = NULL;
1288         TnyFolderStore *folder = NULL;
1289         TnyFolderType folder_type;
1290         guint i=0;
1291         gboolean result = FALSE;
1292
1293         /*Get curent folder */
1294         if (MODEST_IS_MAIN_WINDOW(win)) {
1295
1296                 /* Get folder view */
1297                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1298                                                                    MODEST_WIDGET_TYPE_FOLDER_VIEW);
1299                 /* If no folder view, always dimmed */
1300                 if (!folder_view)
1301                         return FALSE;
1302         
1303                 /* Get selected folder as parent of new folder to create */
1304                 folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1305
1306                 if (!(folder && TNY_IS_FOLDER(folder))) {
1307                         if (folder)
1308                                 g_object_unref (folder);
1309                         return FALSE;
1310                 }
1311                 
1312                 /* Check folder type */
1313                 result = _folder_is_any_of_type (TNY_FOLDER(folder), types, ntypes);
1314         }
1315         else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
1316                 folder_type = modest_msg_view_window_get_folder_type (MODEST_MSG_VIEW_WINDOW (win));
1317                 for (i=0; i < ntypes; i++) {
1318                         result = result || folder_type == types[i];
1319                 }
1320         }
1321
1322
1323         /* free */
1324         g_object_unref (folder);
1325
1326         return result;  
1327 }
1328
1329 static gboolean
1330 _folder_is_any_of_type (TnyFolder *folder,
1331                         TnyFolderType types[], 
1332                         guint ntypes)
1333 {
1334         TnyFolderType folder_type;
1335         gboolean result = FALSE;
1336         guint i;
1337
1338         g_return_val_if_fail (TNY_IS_FOLDER(folder), FALSE);
1339
1340         /* Get folder type */
1341         if (modest_tny_folder_is_local_folder (folder))
1342                 folder_type = modest_tny_folder_get_local_folder_type (folder);         
1343         else 
1344                 folder_type = modest_tny_folder_guess_folder_type (folder);             
1345         
1346         /* Check foler type */
1347         for (i=0; i < ntypes; i++) {
1348                 result = result || folder_type == types[i];
1349         }
1350
1351         return result;
1352 }
1353
1354 static gboolean
1355 _selected_folder_is_snd_level (ModestMainWindow *win)
1356 {
1357         GtkWidget *folder_view = NULL;
1358         GtkTreeSelection *sel = NULL;
1359         GtkTreeModel *model = NULL;
1360         GtkTreePath *path = NULL;
1361         GtkTreeIter iter;
1362         TnyFolderStore *folder = NULL;
1363         gboolean result = FALSE;
1364
1365         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
1366
1367         /*Get curent folder */
1368         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1369                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1370         /* If no folder view, always dimmed */
1371         if (!folder_view) 
1372                 goto frees;
1373
1374         /* Get selected folder as parent of new folder to create */
1375         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));     
1376         if (!(folder && TNY_IS_FOLDER(folder))) {
1377                 goto frees;
1378         }
1379         
1380         /* Check folder level */
1381         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW(folder_view));
1382         if (!gtk_tree_selection_get_selected (sel, &model, &iter))
1383                 goto frees;
1384         path = gtk_tree_model_get_path (model, &iter);
1385         result = gtk_tree_path_get_depth (path) > 2;
1386         
1387  frees:
1388         if (folder != NULL)
1389                 g_object_unref (folder);
1390         if (path != NULL)
1391                 gtk_tree_path_free (path);
1392         
1393         return result;
1394
1395 }
1396
1397 static gboolean
1398 _clipboard_is_empty (ModestWindow *win)
1399 {
1400         gboolean result = FALSE;
1401         
1402         if (MODEST_IS_MAIN_WINDOW (win)) {
1403                 ModestEmailClipboard *clipboard = NULL;
1404                 clipboard = modest_runtime_get_email_clipboard ();
1405                 if (modest_email_clipboard_cleared (clipboard)) 
1406                  result = TRUE;  
1407         }
1408
1409         return result;
1410 }
1411
1412 static gboolean
1413 _invalid_clipboard_selected (ModestWindow *win,
1414                        ModestDimmingRule *rule) 
1415 {
1416         gboolean result = FALSE;
1417
1418         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1419                 GtkClipboard *clipboard = NULL;
1420                 gchar *selection = NULL;
1421                 GtkWidget *focused = NULL;
1422
1423                 /* Get clipboard selection*/
1424                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
1425                 selection = gtk_clipboard_wait_for_text (clipboard);
1426
1427                 /* Get focuesed widget */
1428                 focused = gtk_window_get_focus (GTK_WINDOW (win));
1429
1430                 /* Check dimming */
1431                 result = ((selection == NULL) || 
1432                           (MODEST_IS_ATTACHMENTS_VIEW (focused)));
1433                 
1434                 if (result)
1435                         modest_dimming_rule_set_notification (rule, "");
1436         }               
1437         else if (MODEST_IS_MAIN_WINDOW (win)) {
1438                 GtkWidget *header_view = NULL;
1439
1440                 /* Get header view to check selected messages */
1441                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1442                                                                    MODEST_WIDGET_TYPE_HEADER_VIEW);
1443         
1444                 /* Check dimming */
1445                 result = !modest_header_view_has_selected_headers (MODEST_HEADER_VIEW(header_view));            
1446                 if (result)
1447                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));                  
1448         }
1449         
1450         return result;
1451 }
1452
1453
1454 static gboolean
1455 _invalid_attach_selected (ModestWindow *win,
1456                           gboolean unique,
1457                           gboolean for_view,
1458                           ModestDimmingRule *rule) 
1459 {
1460         GList *attachments, *node;
1461         gint n_selected;
1462         TnyHeaderFlags flags;
1463         gboolean nested_attachments = FALSE;
1464         gboolean selected_messages = FALSE;
1465         gboolean result = FALSE;
1466
1467         if (MODEST_IS_MAIN_WINDOW (win)) {
1468                 flags = TNY_HEADER_FLAG_ATTACHMENTS;
1469                 if (!result)
1470                         result = _selected_msg_marked_as (win, flags, TRUE);            
1471         }
1472         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1473                 
1474                 /* Get selected atachments */
1475                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1476                 n_selected = g_list_length (attachments);
1477
1478                 /* Check unique */              
1479                 if (!result) {
1480                         if (unique) 
1481                                 result = n_selected != 1;
1482                         else
1483                                 
1484                                 result = n_selected < 1;
1485                 }
1486                 
1487                 /* Check attached type (view operation not required) */
1488                 if (!result && !for_view)  {
1489                         for (node = attachments; node != NULL && !result; node = g_list_next (node)) {
1490                                 TnyMimePart *mime_part = TNY_MIME_PART (node->data);
1491                                 TnyList *nested_list = tny_simple_list_new ();
1492                                 if (TNY_IS_MSG (mime_part)) {
1493                                         selected_messages = TRUE;
1494                                         result = TRUE;
1495                                 }
1496                                 tny_mime_part_get_parts (mime_part, nested_list);
1497                                 if (tny_list_get_length (nested_list) > 0) {
1498                                 nested_attachments = TRUE;
1499                                 result = TRUE;
1500                                 }
1501                                 g_object_unref (nested_list);
1502                         }
1503                 }
1504                 
1505                 /* Set notifications */
1506                 if (result && rule != NULL) {
1507                         if (selected_messages) {
1508                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_save_attach_mail"));
1509                         } else if (nested_attachments) {
1510                                 modest_dimming_rule_set_notification (rule, _("FIXME:unable to save attachments with nested elements"));
1511                         } else if (n_selected == 0) {
1512                                 modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1513                         } else if (unique) {
1514                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_display_more"));
1515                         }
1516                 }
1517                 
1518                 /* Free */
1519                 g_list_free (attachments);
1520         }
1521
1522         return result;
1523 }
1524
1525 static gboolean
1526 _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule) 
1527 {
1528         GList *attachments = NULL, *node;
1529         gint purged = 0;
1530         gint n_attachments = 0;
1531         gboolean result = FALSE;
1532
1533         /* This should check if _all_ the attachments are already purged. If only some
1534          * of them are purged, then it does not cause dim as there's a confirmation dialog
1535          * for removing only local attachments */
1536
1537         /* Get selected atachments */
1538         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1539                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1540         } else if (MODEST_IS_MAIN_WINDOW (win)) {
1541                 /* If we're in main window, we won't know if there are already purged attachments */
1542                 return FALSE;
1543         }
1544
1545         if (attachments == NULL)
1546                 return FALSE;
1547
1548         for (node = attachments; node != NULL; node = g_list_next (node)) {
1549                 TnyMimePart *mime_part = TNY_MIME_PART (node->data);
1550                 if (tny_mime_part_is_purged (mime_part)) {
1551                         purged++;
1552                 }
1553                 n_attachments++;
1554         }
1555                 
1556         /* Free */
1557         g_list_free (attachments);
1558
1559         if (all)
1560                 result = (purged == n_attachments);
1561         else
1562                 result = (purged > 0);
1563
1564         if (result && (rule != NULL))
1565                 modest_dimming_rule_set_notification (rule, _("mail_ib_attachment_already_purged"));
1566
1567         return result;
1568 }
1569
1570 static gboolean
1571 _invalid_msg_selected (ModestMainWindow *win,
1572                        gboolean unique,
1573                        ModestDimmingRule *rule) 
1574 {
1575         GtkWidget *header_view = NULL;          
1576         GtkWidget *folder_view = NULL;
1577         gboolean selected_headers = FALSE;
1578         gboolean result = FALSE;
1579
1580         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1581         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (rule), FALSE);
1582                 
1583         /* Get header view to check selected messages */
1584         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1585                                                            MODEST_WIDGET_TYPE_HEADER_VIEW);
1586         
1587         /* Get folder view to check focus */
1588         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
1589                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1590
1591         /* Get selected headers */
1592         selected_headers = modest_header_view_has_selected_headers (MODEST_HEADER_VIEW(header_view));
1593
1594         /* Check dimmed rule (TODO: check focus on widgets */   
1595         if (!result) {
1596                 result = ((!selected_headers) ||
1597                           (gtk_widget_is_focus (folder_view)));
1598                 if (result)
1599                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
1600         }
1601         if (!result && unique) {
1602                 result = modest_header_view_count_selected_headers (MODEST_HEADER_VIEW(header_view)) > 1;
1603                 if (result)
1604                         modest_dimming_rule_set_notification (rule, _("mcen_ib_select_one_message"));
1605         }
1606
1607         return result;
1608 }
1609
1610 static gboolean
1611 _already_opened_msg (ModestWindow *win,
1612                      guint *n_messages)
1613 {
1614         //ModestWindow *window = NULL;
1615         ModestWindowMgr *mgr = NULL;
1616         GtkWidget *header_view = NULL;          
1617         TnyList *selected_headers = NULL;
1618         TnyIterator *iter = NULL;
1619         TnyHeader *header = NULL;
1620         gboolean found;
1621
1622         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1623                 
1624         /* Get header view to check selected messages */
1625         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1626                                                            MODEST_WIDGET_TYPE_HEADER_VIEW);
1627
1628
1629         /* Check no selection */
1630         if (!modest_header_view_has_selected_headers (MODEST_HEADER_VIEW(header_view)))
1631             return FALSE;
1632             
1633         /* Get selected headers */
1634         selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
1635         if (selected_headers == NULL) 
1636                 return FALSE;
1637
1638         *n_messages = tny_list_get_length (selected_headers);
1639
1640         /* Check dimmed rule (TODO: check focus on widgets */   
1641         mgr = modest_runtime_get_window_mgr ();
1642         iter = tny_list_create_iterator (selected_headers);
1643         found = FALSE;
1644         while (!tny_iterator_is_done (iter)) {
1645                 header = TNY_HEADER (tny_iterator_get_current (iter));
1646                 found = modest_window_mgr_find_registered_header (mgr,header, NULL);
1647                 
1648                 g_object_unref (header);
1649                 tny_iterator_next (iter);
1650
1651                 if (found)
1652                         break;
1653         }
1654                 
1655         /* free */
1656         if (selected_headers != NULL) 
1657                 g_object_unref (selected_headers);
1658         if (iter != NULL)
1659                 g_object_unref (iter);
1660                 
1661         return found;
1662 }
1663
1664 static gboolean
1665 _selected_msg_marked_as (ModestWindow *win, 
1666                          TnyHeaderFlags mask, 
1667                          gboolean opposite)
1668 {
1669         GtkWidget *header_view = NULL;
1670         TnyList *selected_headers = NULL;
1671         TnyIterator *iter = NULL;
1672         TnyHeader *header = NULL;
1673         TnyHeaderFlags flags;
1674         gboolean result = FALSE;
1675
1676         /* Get header view to check selected messages */
1677         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1678                                                            MODEST_WIDGET_TYPE_HEADER_VIEW);
1679
1680         /* Check no selection */
1681         if (!modest_header_view_has_selected_headers (MODEST_HEADER_VIEW(header_view)))
1682             return TRUE;
1683
1684         /* Get selected headers */
1685         selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
1686         if (selected_headers == NULL) 
1687                 return TRUE;
1688         
1689         /* Call the function for each header */
1690         iter = tny_list_create_iterator (selected_headers);
1691         while (!tny_iterator_is_done (iter) && !result) {
1692                 header = TNY_HEADER (tny_iterator_get_current (iter));
1693
1694                 flags = tny_header_get_flags (header);
1695                 if (opposite)
1696                         result = (flags & mask) == 0; 
1697                 else
1698                         result = (flags & mask) != 0; 
1699
1700                 g_object_unref (header);
1701                 tny_iterator_next (iter);
1702         }
1703
1704         /* free */
1705         if (selected_headers != NULL) 
1706                 g_object_unref (selected_headers);
1707         if (iter != NULL)
1708                 g_object_unref (iter);
1709
1710         return result;
1711 }
1712
1713 static gboolean
1714 _msg_download_in_progress (ModestMsgViewWindow *win)
1715 {
1716         gboolean result = FALSE;
1717
1718         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW (win), FALSE);
1719
1720         result = modest_msg_view_window_toolbar_on_transfer_mode (win);
1721
1722         return result;
1723 }
1724
1725 static gboolean
1726 _msg_download_completed (ModestMainWindow *win)
1727 {
1728         GtkWidget *header_view = NULL;
1729         TnyList *selected_headers = NULL;
1730         TnyIterator *iter = NULL;
1731         TnyHeader *header = NULL;
1732         TnyHeaderFlags flags;
1733         gboolean result = FALSE;
1734
1735         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW (win), FALSE);
1736
1737
1738         /* Get header view to check selected messages */
1739         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1740                                                            MODEST_WIDGET_TYPE_HEADER_VIEW);
1741
1742         /* Check no selection */
1743         if (!modest_header_view_has_selected_headers (MODEST_HEADER_VIEW(header_view)))
1744             return TRUE;
1745
1746         /* Get selected headers */
1747         selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
1748         if (selected_headers == NULL) 
1749                 return TRUE;
1750
1751         /* Check dimmed rule  */        
1752         result = TRUE;
1753         iter = tny_list_create_iterator (selected_headers);
1754         while (!tny_iterator_is_done (iter) && result) {
1755                 header = TNY_HEADER (tny_iterator_get_current (iter));
1756                         
1757                 flags = tny_header_get_flags (header);
1758                 /* TODO: is this the right flag?, it seems that some
1759                    headers that have been previously downloaded do not
1760                    come with it */
1761                 result = (flags & TNY_HEADER_FLAG_CACHED);
1762
1763                 g_object_unref (header);
1764                 tny_iterator_next (iter);
1765         }
1766
1767         g_object_unref (iter);
1768
1769         return result;
1770 }
1771
1772 static gboolean
1773 _selected_msg_sent_in_progress (ModestWindow *win)
1774 {
1775         ModestTnySendQueue *send_queue = NULL;
1776         GtkWidget *header_view = NULL;
1777         ModestTnyAccountStore *acc_store = NULL;
1778         TnyAccount *account = NULL;
1779         TnyList *header_list = NULL;
1780         TnyIterator *iter = NULL;
1781         TnyHeader *header = NULL;
1782         const gchar *account_name = NULL;
1783         gboolean result = FALSE;
1784         gchar *id = NULL;
1785         
1786         /* Get transport account */
1787         acc_store = modest_runtime_get_account_store();
1788         account_name = modest_window_get_active_account (win);
1789         
1790         /* If no account defined, this action must be always dimmed  */
1791         if (account_name == NULL) return FALSE;
1792         account = modest_tny_account_store_get_transport_account_for_open_connection (acc_store, account_name);
1793         if (!TNY_IS_TRANSPORT_ACCOUNT (account)) return FALSE;
1794
1795         /* Get send queue for current ransport account */
1796         send_queue = modest_runtime_get_send_queue (TNY_TRANSPORT_ACCOUNT(account));
1797         g_return_val_if_fail (MODEST_IS_TNY_SEND_QUEUE (send_queue), FALSE);
1798
1799         if (MODEST_IS_MAIN_WINDOW(win)) {
1800                 
1801                 /* Get header view to check selected messages */
1802                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1803                                                                    MODEST_WIDGET_TYPE_HEADER_VIEW);
1804                 
1805                 /* Check no selection */
1806                 if (!modest_header_view_has_selected_headers (MODEST_HEADER_VIEW(header_view)))
1807                     return FALSE;
1808
1809                 /* Get selected headers */
1810                 header_list = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
1811
1812                 /* Get message header */
1813                 if (!header_list) return FALSE;
1814                 iter = tny_list_create_iterator (header_list);
1815                 header = TNY_HEADER (tny_iterator_get_current (iter));
1816
1817                 /* Get message id */
1818                 id = g_strdup(tny_header_get_message_id (header));
1819                 
1820         } else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
1821                 
1822                 /* Get message header */
1823                 header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW(win));
1824
1825                 /* Get message id */
1826                 id = g_strdup(tny_header_get_message_id (header));
1827         }
1828
1829         /* Check if msg id is being processed inside send queue */
1830         result = modest_tny_send_queue_msg_is_being_sent (send_queue, id);
1831
1832         /* Free */
1833         g_free(id);
1834         g_object_unref (header);
1835         g_object_unref(header_list);
1836         g_object_unref(iter);
1837
1838         return result;
1839 }
1840
1841
1842 static gboolean
1843 _sending_in_progress (ModestWindow *win)
1844 {
1845         gboolean result = FALSE;
1846         
1847         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW (win), FALSE);
1848
1849         /* Check if send operation is in progress */
1850         result = modest_main_window_send_receive_in_progress (MODEST_MAIN_WINDOW (win));
1851
1852         return result;
1853 }
1854
1855 static gboolean
1856 _invalid_folder_for_purge (ModestWindow *win, 
1857                            ModestDimmingRule *rule)
1858 {
1859         TnyMsg *msg = NULL;
1860         TnyFolder *folder = NULL;
1861         TnyAccount *account = NULL;
1862         gboolean result = FALSE;
1863
1864         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1865
1866                 /* Get folder and account of message */
1867                 msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
1868                 g_return_val_if_fail(msg != NULL, TRUE);                        
1869                 folder = tny_msg_get_folder (msg);              
1870                 if (folder == NULL) {
1871                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1872                         goto frees;                     
1873                 }
1874                 g_object_unref (msg);
1875         } else if (MODEST_IS_MAIN_WINDOW (win)) {
1876                 GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
1877                                                                               MODEST_WIDGET_TYPE_FOLDER_VIEW);
1878                 if (!folder_view)
1879                         return FALSE;
1880                 folder = TNY_FOLDER (modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view)));
1881                 if (folder == NULL || ! TNY_IS_FOLDER (folder))
1882                         return FALSE;
1883                 g_object_ref (folder);
1884                 
1885         } else {
1886                 g_return_val_if_reached (FALSE);
1887         }
1888         account = modest_tny_folder_get_account (folder);
1889         if (account == NULL) goto frees;                        
1890                 
1891         /* Check account */
1892         if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (account))) {
1893                 TnyFolderType types[2];
1894                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
1895                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
1896                 
1897                 if (_selected_folder_is_any_of_type (win, types, 2)) {
1898                         result = TRUE;
1899                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_editable_msg"));
1900                 } else {
1901                         /* We're currently disabling purge in any local store */
1902                         result = TRUE;
1903                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1904                 }
1905         } else {
1906                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (account));
1907                 /* If it's POP then dim */
1908                 if (modest_protocol_info_get_transport_store_protocol (proto_str) == 
1909                     MODEST_PROTOCOL_STORE_POP) {
1910                         GList *attachments;
1911                         gint n_selected;
1912                         result = TRUE;
1913                         attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1914                         n_selected = g_list_length (attachments);
1915                         g_list_free (attachments);
1916                         
1917                         modest_dimming_rule_set_notification (rule, 
1918                                                               ngettext ("mail_ib_unable_to_pure_attach_pop_mail_singular",
1919                                                                         "mail_ib_unable_to_pure_attach_pop_mail_plural", 
1920                                                                         n_selected));
1921                 }
1922         }
1923         
1924 frees:
1925         if (folder != NULL)
1926                 g_object_unref (folder);
1927         if (account != NULL)
1928                 g_object_unref (account);
1929         
1930         return result;
1931 }
1932
1933 static gboolean
1934 _transfer_mode_enabled (ModestWindow *win)
1935 {
1936         gboolean result = FALSE;
1937
1938         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW (win), FALSE);
1939         
1940         /* Check dimming */
1941         result = modest_msg_view_window_transfer_mode_enabled (MODEST_MSG_VIEW_WINDOW (win));
1942
1943         return result;
1944 }
"modest" is a lean & mean e-mail program.