git.maemo.org Git - modest/blob - 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-tny-account.h"
  39 #include "modest-text-utils.h"
  40 #include <widgets/modest-attachments-view.h>
  41 #include <modest-runtime.h>
  42 #include <tny-simple-list.h>
  43
  44
  45 static gboolean _folder_is_any_of_type (TnyFolder *folder, TnyFolderType types[], guint ntypes);
  46 static gboolean _invalid_msg_selected (ModestMainWindow *win, gboolean unique, ModestDimmingRule *rule);
  47 static gboolean _invalid_attach_selected (ModestWindow *win,
  48                                           gboolean unique, gboolean for_view, gboolean for_remove,
  49                                           ModestDimmingRule *rule);
  50 static gboolean _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule);
  51 static gboolean _clipboard_is_empty (ModestWindow *win);
  52 static gboolean _invalid_clipboard_selected (ModestWindow *win, ModestDimmingRule *rule);
  53 /* static gboolean _already_opened_msg (ModestWindow *win, guint *n_messages); */
  54 /* static gboolean _selected_msg_marked_as (ModestMainWindow *win, TnyHeaderFlags mask, gboolean opposite, gboolean all); */
  55 static gboolean _selected_folder_not_writeable (ModestMainWindow *win);
  56 static gboolean _selected_folder_is_snd_level (ModestMainWindow *win);
  57 static gboolean _selected_folder_is_any_of_type (ModestWindow *win, TnyFolderType types[], guint ntypes);
  58 static gboolean _selected_folder_is_root_or_inbox (ModestMainWindow *win);
  59 static gboolean _selected_folder_is_MMC_or_POP_root (ModestMainWindow *win);
  60 static gboolean _selected_folder_is_root (ModestMainWindow *win);
  61 static gboolean _selected_folder_is_empty (ModestMainWindow *win);
  62 static gboolean _selected_folder_is_same_as_source (ModestWindow *win);
  63 static gboolean _msg_download_in_progress (ModestMsgViewWindow *win);
  64 static gboolean _msg_download_completed (ModestMainWindow *win);
  65 static gboolean _selected_msg_sent_in_progress (ModestWindow *win);
  66 static gboolean _sending_in_progress (ModestWindow *win);
  67 /* static gboolean _message_is_marked_as_deleted (ModestMsgViewWindow *win); */
  68 /* static gboolean _selected_message_is_marked_as_deleted (ModestMainWindow *win); */
  69 static gboolean _invalid_folder_for_purge (ModestWindow *win, ModestDimmingRule *rule);
  70 static gboolean _transfer_mode_enabled (ModestWindow *win);
  71
  72 static void  fill_list_of_caches (gpointer key, gpointer value, gpointer userdata);
  73
  74
  75 static DimmedState *
  76 _define_main_window_dimming_state (ModestMainWindow *window)
  77 {
  78         DimmedState *state = NULL;
  79         GtkWidget *header_view = NULL;
  80         TnyList *selected_headers = NULL;
  81         TnyIterator *iter = NULL;
  82         TnyHeader *header = NULL;
  83         ModestCacheMgr *cache_mgr = NULL;
  84         GHashTable *send_queue_cache = NULL;
  85         ModestTnySendQueue *send_queue = NULL;
  86         GSList *send_queues = NULL, *node = NULL;
  87         ModestWindowMgr *mgr = NULL;
  88         gboolean found = FALSE;
  89         gchar *msg_uid = NULL;
  90         TnyHeaderFlags flags;
  91         gboolean all_deleted = TRUE;
  92         gboolean all_seen = TRUE;
  93         gboolean all_cached = TRUE;
  94         gboolean all_has_attach = TRUE;
  95
  96         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(window), NULL);
  97
  98         /* Init state */
  99         state = g_slice_new0 (DimmedState);
 100         state->n_selected = 0;
 101         state->already_opened_msg = FALSE;
 102         state->any_marked_as_deleted = FALSE;
 103         state->all_marked_as_deleted = FALSE;
 104         state->any_marked_as_seen = FALSE;
 105         state->all_marked_as_seen = FALSE;
 106         state->any_marked_as_cached = FALSE;
 107         state->all_marked_as_cached = FALSE;
 108         state->any_has_attachments = FALSE;
 109         state->all_has_attachments = FALSE;
 110         state->sent_in_progress = FALSE;
 111
 112         /* Get header view and selected headers */
 113         header_view = modest_main_window_get_child_widget (window, MODEST_WIDGET_TYPE_HEADER_VIEW);
 114         selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
 115         if (!selected_headers)
 116                 return state;
 117
 118         /* Examine selected headers */
 119         iter = tny_list_create_iterator (selected_headers);
 120         while (!tny_iterator_is_done (iter)) {
 121                 header = TNY_HEADER (tny_iterator_get_current (iter));
 122                 flags = tny_header_get_flags (header);
 123
 124                 /* No selected */
 125                 state->n_selected++;
 126
 127                 /* Already opened */
 128                 mgr = modest_runtime_get_window_mgr ();
 129                 if (!state->already_opened_msg)
 130                         state->already_opened_msg = modest_window_mgr_find_registered_header (mgr, header, NULL);
 131
 132
 133                 /* Mark as deleted */
 134                 all_deleted = all_deleted && (flags & TNY_HEADER_FLAG_DELETED);
 135                 state->all_marked_as_deleted = all_deleted;
 136                 if (!state->any_marked_as_deleted)
 137                         state->any_marked_as_deleted = flags & TNY_HEADER_FLAG_DELETED;
 138
 139                 /* Mark as seen */
 140                 all_seen = all_seen && (flags & TNY_HEADER_FLAG_SEEN);
 141                 state->all_marked_as_seen = all_seen;
 142                 if (!state->any_marked_as_seen)
 143                         state->any_marked_as_seen = flags & TNY_HEADER_FLAG_SEEN;
 144
 145                 /* Mark as cached */
 146                 all_cached = all_cached && (flags & TNY_HEADER_FLAG_CACHED);
 147                 state->all_marked_as_cached = all_cached;
 148                 if (!state->any_marked_as_cached)
 149                         state->any_marked_as_cached = flags & TNY_HEADER_FLAG_CACHED;
 150
 151                 /* Mark has_attachments */
 152                 all_has_attach = all_has_attach && (flags & TNY_HEADER_FLAG_ATTACHMENTS);
 153                 state->all_has_attachments = all_has_attach;
 154                 if (!state->any_has_attachments)
 155                         state->any_has_attachments = flags & TNY_HEADER_FLAG_ATTACHMENTS;
 156
 157                 /* sent in progress */
 158                 msg_uid = modest_tny_send_queue_get_msg_id (header);
 159                 if (!state->sent_in_progress) {
 160                         cache_mgr = modest_runtime_get_cache_mgr ();
 161                         send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
 162                                                                        MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
 163
 164                         g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
 165
 166                         for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
 167                                 send_queue = MODEST_TNY_SEND_QUEUE (node->data);
 168
 169                                 /* Check if msg uid is being processed inside send queue */
 170                                 found = modest_tny_send_queue_msg_is_being_sent (send_queue, msg_uid);
 171                         }
 172                         state->sent_in_progress = found;
 173                 }
 174
 175                 tny_iterator_next (iter);
 176                 g_object_unref (header);
 177         }
 178
 179         /* Free */
 180         g_free(msg_uid);
 181         g_object_unref(selected_headers);
 182         g_object_unref(iter);
 183         g_slist_free (send_queues);
 184
 185         return state;
 186 }
 187
 188 static DimmedState *
 189 _define_msg_view_window_dimming_state (ModestMsgViewWindow *window)
 190 {
 191         DimmedState *state = NULL;
 192         TnyHeader *header = NULL;
 193         ModestCacheMgr *cache_mgr = NULL;
 194         GHashTable *send_queue_cache = NULL;
 195         ModestTnySendQueue *send_queue = NULL;
 196         GSList *send_queues = NULL, *node = NULL;
 197         gboolean found = FALSE;
 198         gchar *msg_uid = NULL;
 199         TnyHeaderFlags flags;
 200         gboolean all_deleted = TRUE;
 201         gboolean all_seen = TRUE;
 202         gboolean all_cached = TRUE;
 203         gboolean all_has_attach = TRUE;
 204
 205         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(window), NULL);
 206
 207         /* Init state */
 208         state = g_slice_new0 (DimmedState);
 209         state->n_selected = 0;
 210         state->already_opened_msg = FALSE;
 211         state->any_marked_as_deleted = FALSE;
 212         state->all_marked_as_deleted = FALSE;
 213         state->any_marked_as_seen = FALSE;
 214         state->all_marked_as_seen = FALSE;
 215         state->any_marked_as_cached = FALSE;
 216         state->all_marked_as_cached = FALSE;
 217         state->any_has_attachments = FALSE;
 218         state->all_has_attachments = FALSE;
 219         state->sent_in_progress = FALSE;
 220
 221         header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW(window));
 222         g_return_val_if_fail (TNY_IS_HEADER(header), state);
 223         flags = tny_header_get_flags (header);
 224
 225         /* Selected */
 226         state->n_selected++;
 227
 228         /* Mark as deleted */
 229         all_deleted = all_deleted && (flags & TNY_HEADER_FLAG_DELETED);
 230         state->all_marked_as_deleted = all_deleted;
 231         if (!state->any_marked_as_deleted)
 232                 state->any_marked_as_deleted = flags & TNY_HEADER_FLAG_DELETED;
 233
 234         /* Mark as seen */
 235         all_seen = all_seen && (flags & TNY_HEADER_FLAG_SEEN);
 236         state->all_marked_as_seen = all_seen;
 237         if (!state->any_marked_as_seen)
 238                 state->any_marked_as_seen = flags & TNY_HEADER_FLAG_SEEN;
 239
 240         /* Mark as cached */
 241         all_cached = all_cached && (flags & TNY_HEADER_FLAG_CACHED);
 242         state->all_marked_as_cached = all_cached;
 243         if (!state->any_marked_as_cached)
 244                 state->any_marked_as_cached = flags & TNY_HEADER_FLAG_CACHED;
 245
 246         /* Mark has_attachments */
 247         all_has_attach = all_has_attach && (flags & TNY_HEADER_FLAG_ATTACHMENTS);
 248         state->all_has_attachments = all_has_attach;
 249         if (!state->any_has_attachments)
 250                 state->any_has_attachments = flags & TNY_HEADER_FLAG_ATTACHMENTS;
 251
 252         /* sent in progress */
 253         msg_uid = modest_tny_send_queue_get_msg_id (header);
 254         if (!state->sent_in_progress) {
 255                 cache_mgr = modest_runtime_get_cache_mgr ();
 256                 send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
 257                                                                MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
 258
 259                 g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
 260
 261                 for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
 262                         send_queue = MODEST_TNY_SEND_QUEUE (node->data);
 263
 264                         /* Check if msg uid is being processed inside send queue */
 265                         found = modest_tny_send_queue_msg_is_being_sent (send_queue, msg_uid);
 266                 }
 267                 state->sent_in_progress = found;
 268         }
 269
 270         /* Free */
 271         g_free(msg_uid);
 272         g_object_unref (header);
 273         g_slist_free (send_queues);
 274
 275         return state;
 276 }
 277
 278
 279 DimmedState *
 280 modest_ui_dimming_rules_define_dimming_state (ModestWindow *window)
 281 {
 282         DimmedState *state = NULL;
 283
 284         g_return_val_if_fail (MODEST_IS_WINDOW(window), NULL);
 285
 286         if (MODEST_IS_MAIN_WINDOW (window))
 287                 state = _define_main_window_dimming_state (MODEST_MAIN_WINDOW(window));
 288         else if (MODEST_IS_MSG_VIEW_WINDOW (window)) {
 289                 state = _define_msg_view_window_dimming_state (MODEST_MSG_VIEW_WINDOW(window));
 290         }
 291
 292         return state;
 293 }
 294
 295
 296 gboolean
 297 modest_ui_dimming_rules_on_new_msg (ModestWindow *win, gpointer user_data)
 298 {
 299         ModestDimmingRule *rule = NULL;
 300         gboolean dimmed = FALSE;
 301
 302         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 303         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 304         rule = MODEST_DIMMING_RULE (user_data);
 305
 306         /* Check dimmed rule */
 307         if (!dimmed) {
 308                 dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW(win));
 309                 if (dimmed)
 310                         modest_dimming_rule_set_notification (rule, "");
 311         }
 312
 313         return dimmed;
 314 }
 315
 316 gboolean
 317 modest_ui_dimming_rules_on_csm_new_folder (ModestWindow *win, gpointer user_data)
 318 {
 319         ModestDimmingRule *rule = NULL;
 320         gboolean dimmed = FALSE;
 321
 322         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 323         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 324         rule = MODEST_DIMMING_RULE (user_data);
 325
 326         /* Check common new folder menu item dimming rules */
 327         dimmed = modest_ui_dimming_rules_on_new_folder (win, user_data);
 328
 329         /* Check CSM specific dimming rules */
 330         if (!dimmed) {
 331                 dimmed = _selected_folder_is_snd_level (MODEST_MAIN_WINDOW(win));
 332                 if (dimmed)
 333                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 334         }
 335
 336         return dimmed;
 337 }
 338
 339 gboolean
 340 modest_ui_dimming_rules_on_new_folder (ModestWindow *win, gpointer user_data)
 341 {
 342         ModestDimmingRule *rule = NULL;
 343         GtkWidget *folder_view = NULL;
 344         TnyFolderStore *parent_folder = NULL;
 345         gboolean dimmed = FALSE;
 346
 347         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 348         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 349         rule = MODEST_DIMMING_RULE (user_data);
 350
 351         /* Get selected folder as parent of new folder to create */
 352         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 353                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
 354         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
 355         if (!parent_folder)
 356                 return TRUE;
 357
 358         if (TNY_IS_ACCOUNT (parent_folder)) {
 359                 /* If it's the local account then do not dim */
 360                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
 361                         dimmed = FALSE;
 362                 } else {
 363                         const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
 364                         /* If it's POP then dim */
 365                         dimmed = (modest_protocol_info_get_transport_store_protocol (proto_str) ==
 366                                   MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
 367                         if (dimmed)
 368                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 369                 }
 370         } else {
 371                 /* TODO: the specs say that only one level of subfolder is allowed, is this true ? */
 372
 373                 TnyFolderType types[3];
 374
 375                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 376                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 377                 types[2] = TNY_FOLDER_TYPE_SENT;
 378
 379                 /* Apply folder rules */
 380                 if (!dimmed) {
 381                         dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 382                         if (dimmed)
 383                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 384                 }
 385                 if (!dimmed) {
 386                         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 387                         if (dimmed)
 388                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 389                 }
 390         }
 391         g_object_unref (parent_folder);
 392
 393         return dimmed;
 394 }
 395
 396 gboolean
 397 modest_ui_dimming_rules_on_delete (ModestWindow *win, gpointer user_data)
 398 {
 399         ModestDimmingRule *rule = NULL;
 400         GtkWidget *folder_view = NULL;
 401         GtkWidget *header_view = NULL;
 402         gboolean dimmed = FALSE;
 403
 404         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 405         rule = MODEST_DIMMING_RULE (user_data);
 406
 407         if (MODEST_IS_MAIN_WINDOW (win)) {
 408                 /* Get the folder view */
 409                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 410                                                                    MODEST_WIDGET_TYPE_FOLDER_VIEW);
 411
 412                 /* Get header view */
 413                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 414                                                            MODEST_WIDGET_TYPE_HEADER_VIEW);
 415
 416                 if (header_view && gtk_widget_is_focus (header_view))
 417                         dimmed = modest_ui_dimming_rules_on_delete_msg (win, rule);
 418
 419                 if (folder_view && gtk_widget_is_focus (folder_view))
 420                         dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 421
 422                 if (header_view && folder_view &&
 423                     !gtk_widget_is_focus (header_view) &&
 424                     !gtk_widget_is_focus (folder_view)) {
 425                         dimmed = TRUE;
 426                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ckct_ib_nothing_to_delete"));
 427                 }
 428         } else {
 429                 dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 430         }
 431
 432         return dimmed;
 433 }
 434
 435
 436
 437 gboolean
 438 modest_ui_dimming_rules_on_delete_folder (ModestWindow *win, gpointer user_data)
 439 {
 440         ModestDimmingRule *rule = NULL;
 441         TnyFolderType types[6];
 442         gboolean dimmed = FALSE;
 443
 444         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 445         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 446         rule = MODEST_DIMMING_RULE (user_data);
 447
 448         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 449         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 450         types[2] = TNY_FOLDER_TYPE_SENT;
 451         types[3] = TNY_FOLDER_TYPE_INBOX;
 452         types[4] = TNY_FOLDER_TYPE_ROOT;
 453         types[5] = TNY_FOLDER_TYPE_ARCHIVE;
 454
 455
 456         /* Check dimmed rule */
 457         if (!dimmed) {
 458                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 459                 if (dimmed)
 460                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 461         }
 462         if (!dimmed) {
 463                 dimmed = _selected_folder_is_any_of_type (win, types, 6);
 464                 if (dimmed)
 465                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 466         }
 467         if (!dimmed) {
 468                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 469                 if (dimmed)
 470                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 471         }
 472         if (!dimmed) {
 473                 dimmed = _selected_folder_is_MMC_or_POP_root (MODEST_MAIN_WINDOW(win));
 474                 if (dimmed)
 475                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 476         }
 477
 478         return dimmed;
 479 }
 480
 481 gboolean
 482 modest_ui_dimming_rules_on_sort (ModestWindow *win, gpointer user_data)
 483 {
 484         ModestDimmingRule *rule = NULL;
 485         gboolean dimmed = FALSE;
 486
 487         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 488         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 489         rule = MODEST_DIMMING_RULE (user_data);
 490
 491         /* Check dimmed rule */
 492         if (!dimmed) {
 493                 dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
 494                 modest_dimming_rule_set_notification (rule, _CS("ckdg_ib_nothing_to_sort"));
 495         }
 496
 497         if (!dimmed) {
 498                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 499                 modest_dimming_rule_set_notification (rule, _CS("ckdg_ib_nothing_to_sort"));
 500         }
 501
 502         return dimmed;
 503
 504 }
 505
 506 gboolean
 507 modest_ui_dimming_rules_on_rename_folder (ModestWindow *win, gpointer user_data)
 508 {
 509         ModestDimmingRule *rule = NULL;
 510         TnyFolderType types[4];
 511         gboolean dimmed = FALSE;
 512
 513         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 514         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 515         rule = MODEST_DIMMING_RULE (user_data);
 516
 517         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 518         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 519         types[2] = TNY_FOLDER_TYPE_SENT;
 520         types[3] = TNY_FOLDER_TYPE_ARCHIVE;
 521
 522         /* Check dimmed rule */
 523         if (!dimmed) {
 524                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 525                 if (dimmed)
 526                         modest_dimming_rule_set_notification (rule, "");
 527         }
 528         if (!dimmed) {
 529                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 530                 if (dimmed)
 531                         modest_dimming_rule_set_notification (rule, "");
 532         }
 533         if (!dimmed) {
 534                 dimmed = _selected_folder_is_any_of_type (win, types, 4);
 535                 if (dimmed)
 536                         modest_dimming_rule_set_notification (rule, "");
 537         }
 538
 539         return dimmed;
 540 }
 541
 542 gboolean
 543 modest_ui_dimming_rules_on_open_msg (ModestWindow *win, gpointer user_data)
 544 {
 545         ModestDimmingRule *rule = NULL;
 546         gboolean dimmed = FALSE;
 547         const DimmedState *state = NULL;
 548
 549         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 550         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 551         rule = MODEST_DIMMING_RULE (user_data);
 552         state = modest_window_get_dimming_state (win);
 553
 554         /* Check dimmed rule */
 555         if (!dimmed) {
 556                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 557         }
 558         if (!dimmed) {
 559                 dimmed = state->any_marked_as_deleted;
 560                 if (dimmed)
 561                         modest_dimming_rule_set_notification (rule, _("mcen_ib_message_already_deleted"));
 562         }
 563         if (!dimmed) {
 564                 dimmed = _selected_msg_sent_in_progress (win);
 565                 if (dimmed)
 566                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_open_while_sent"));
 567         }
 568
 569         return dimmed;
 570 }
 571
 572 gboolean
 573 modest_ui_dimming_rules_on_reply_msg (ModestWindow *win, gpointer user_data)
 574 {
 575         ModestDimmingRule *rule = NULL;
 576         gboolean dimmed = FALSE;
 577         TnyFolderType types[3];
 578
 579         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 580         rule = MODEST_DIMMING_RULE (user_data);
 581
 582         /* main window dimming rules */
 583         if (MODEST_IS_MAIN_WINDOW(win)) {
 584
 585                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 586                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 587                 types[2] = TNY_FOLDER_TYPE_ROOT;
 588
 589                 /* Check dimmed rule */
 590                 if (!dimmed) {
 591                         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 592                         if (dimmed)
 593                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 594                 }
 595                 if (!dimmed) {
 596                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 597                         if (dimmed)
 598                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_nothing_to_reply"));
 599                 }
 600                 if (!dimmed) {
 601                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, rule);
 602                 }
 603         /* msg view window dimming rules */
 604         } else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
 605
 606                 /* Check dimmed rule */
 607                 if (!dimmed) {
 608                         dimmed = _transfer_mode_enabled (win);
 609                         if (dimmed)
 610                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 611                 }
 612                 if (!dimmed) {
 613                         dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW (win));
 614                         if (dimmed)
 615                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 616                 }
 617         }
 618
 619         return dimmed;
 620 }
 621
 622
 623 gboolean
 624 modest_ui_dimming_rules_on_contents_msg (ModestWindow *win, gpointer user_data)
 625 {
 626         ModestDimmingRule *rule = NULL;
 627         gboolean dimmed = FALSE;
 628
 629         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 630         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 631         rule = MODEST_DIMMING_RULE (user_data);
 632
 633         /* Check dimmed rule */
 634         if (!dimmed) {
 635                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 636         }
 637         if (!dimmed) {
 638                 dimmed = _msg_download_completed (MODEST_MAIN_WINDOW(win));
 639                 if (dimmed)
 640                         modest_dimming_rule_set_notification (rule, "");
 641         }
 642
 643         return dimmed;
 644 }
 645
 646 gboolean
 647 modest_ui_dimming_rules_always_dimmed (ModestWindow *win, gpointer user_data)
 648 {
 649         gboolean dimmed = FALSE;
 650
 651         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 652
 653         /* Check dimmed rule */
 654         if (!dimmed)
 655                 dimmed = TRUE;
 656
 657         return dimmed;
 658 }
 659
 660 gboolean
 661 modest_ui_dimming_rules_on_delete_msg (ModestWindow *win, gpointer user_data)
 662 {
 663         ModestDimmingRule *rule = NULL;
 664         guint n_messages = 0;
 665         const DimmedState *state = NULL;
 666         gboolean dimmed = FALSE;
 667
 668         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 669         rule = MODEST_DIMMING_RULE (user_data);
 670         state = modest_window_get_dimming_state (win);
 671
 672         /* Check dimmed rule */
 673         if (MODEST_IS_MAIN_WINDOW (win)) {
 674                 if (!dimmed) {
 675                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 676                         if (dimmed)
 677                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_nothing_to_delete"));
 678                 }
 679                 if (!dimmed) {
 680                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 681                 }
 682                 if (!dimmed) {
 683                         dimmed = state->already_opened_msg;
 684                         n_messages = state->n_selected;
 685                         if (dimmed) {
 686                                 gchar *num = g_strdup_printf ("%d", n_messages);
 687                                 gchar *message = g_strdup_printf(_("mcen_nc_unable_to_delete_n_messages"), num);
 688                                 modest_dimming_rule_set_notification (rule, message);
 689                                 g_free(message);
 690                                 g_free(num);
 691                         }
 692
 693                 }
 694                 if (!dimmed) {
 695                         dimmed = state->any_marked_as_deleted;
 696                         if (dimmed) {
 697                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_message_already_deleted"));
 698                         }
 699                 }
 700                 if (!dimmed) {
 701                         dimmed = state->sent_in_progress;
 702                         if (dimmed)
 703                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 704                 }
 705         }
 706         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
 707                 if (!dimmed) {
 708                         dimmed = _transfer_mode_enabled (win);
 709                         if (dimmed)
 710                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 711                 }
 712                 if (!dimmed) {
 713                         dimmed = state->any_marked_as_deleted;
 714                         if (dimmed)
 715                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_message_already_deleted"));
 716                 }
 717
 718                 /* Commented out, because deletion should be possible even when
 719                  * the message window has no header view model, which will be the
 720                  * case when it is not the selected message in the header view.
 721                  */
 722
 723                 if (!dimmed) {
 724                         dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW(win));
 725                         if (dimmed) {
 726                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 727                         }
 728                 }
 729         }
 730
 731         return dimmed;
 732 }
 733
 734 gboolean
 735 modest_ui_dimming_rules_on_details (ModestWindow *win, gpointer user_data)
 736 {
 737         ModestDimmingRule *rule = NULL;
 738         GtkWidget *header_view = NULL;
 739         gboolean dimmed = FALSE;
 740
 741         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 742         rule = MODEST_DIMMING_RULE (user_data);
 743
 744         /* main window dimming rules */
 745         if (MODEST_IS_MAIN_WINDOW(win)) {
 746
 747                 /* Check dimmed rule */
 748                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 749                                                                    MODEST_WIDGET_TYPE_HEADER_VIEW);
 750
 751                 /* If the header view has the focus: */
 752                 if (header_view && gtk_widget_is_focus (header_view)) {
 753                         /* Check dimmed rule */
 754                         if (!dimmed)
 755                                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 756                 }
 757                 else {
 758                         /* If the folder view has the focus: */
 759                         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 760                                 MODEST_WIDGET_TYPE_FOLDER_VIEW);
 761                         if (folder_view && gtk_widget_is_focus (folder_view)) {
 762                                 TnyFolderStore *folder_store
 763                                         = modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
 764                                 if (folder_store) {
 765                                         /* Only enable for folders, not accounts,
 766                                          * though the UI spec is not clear about that.
 767                                          * If we enable this for accounts then we must
 768                                          * add code to handle them in modest_ui_actions_on_details(). */
 769                                         if (!TNY_IS_FOLDER(folder_store)) {
 770                                                 dimmed = TRUE;
 771                                                 modest_dimming_rule_set_notification (rule, "");
 772                                         }
 773
 774                                         g_object_unref (folder_store);
 775                                 }
 776                         }
 777
 778                 }
 779
 780         /* msg view window dimming rules */
 781         } else {
 782
 783                 /* Check dimmed rule */
 784                 if (!dimmed) {
 785                         if (MODEST_IS_MSG_VIEW_WINDOW (win))
 786                                 dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW (win));
 787                         if (dimmed)
 788                                 modest_dimming_rule_set_notification (rule, "");
 789                 }
 790         }
 791
 792         return dimmed;
 793 }
 794
 795
 796 gboolean
 797 modest_ui_dimming_rules_on_mark_as_read_msg (ModestWindow *win, gpointer user_data)
 798 {
 799         ModestDimmingRule *rule = NULL;
 800         TnyHeaderFlags flags;
 801         const DimmedState *state = NULL;
 802         gboolean dimmed = FALSE;
 803
 804         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 805         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 806         rule = MODEST_DIMMING_RULE (user_data);
 807         state = modest_window_get_dimming_state (win);
 808
 809         flags = TNY_HEADER_FLAG_SEEN;
 810
 811         /* Check dimmed rule */
 812         if (!dimmed) {
 813                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 814         }
 815         if (!dimmed) {
 816                 dimmed = state->all_marked_as_seen;
 817                 if (dimmed)
 818                         modest_dimming_rule_set_notification (rule, "");
 819         }
 820
 821         return dimmed;
 822 }
 823
 824 gboolean
 825 modest_ui_dimming_rules_on_mark_as_unread_msg (ModestWindow *win, gpointer user_data)
 826 {
 827         ModestDimmingRule *rule = NULL;
 828         TnyHeaderFlags flags;
 829         const DimmedState *state = NULL;
 830         gboolean dimmed = FALSE;
 831
 832         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 833         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 834         rule = MODEST_DIMMING_RULE (user_data);
 835         state = modest_window_get_dimming_state (win);
 836
 837         flags = TNY_HEADER_FLAG_SEEN;
 838
 839         /* Check dimmed rule */
 840         if (!dimmed)
 841                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 842         if (!dimmed) {
 843                 dimmed = !state->any_marked_as_seen;
 844                 if (dimmed)
 845                         modest_dimming_rule_set_notification (rule, "");
 846         }
 847
 848         return dimmed;
 849 }
 850
 851 gboolean
 852 modest_ui_dimming_rules_on_move_to (ModestWindow *win, gpointer user_data)
 853 {
 854         ModestDimmingRule *rule = NULL;
 855         gboolean dimmed = FALSE;
 856
 857         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 858         rule = MODEST_DIMMING_RULE (user_data);
 859
 860         if (MODEST_IS_MAIN_WINDOW (win))
 861                 dimmed = modest_ui_dimming_rules_on_main_window_move_to (win, user_data);
 862         else if (MODEST_IS_MSG_VIEW_WINDOW (win))
 863                  dimmed = modest_ui_dimming_rules_on_view_window_move_to (win, user_data);
 864
 865         return dimmed;
 866 }
 867
 868
 869 gboolean
 870 modest_ui_dimming_rules_on_main_window_move_to (ModestWindow *win, gpointer user_data)
 871 {
 872         GtkWidget *folder_view = NULL;
 873         ModestDimmingRule *rule = NULL;
 874         guint n_messages = 0;
 875         const DimmedState *state = NULL;
 876         gboolean dimmed = FALSE;
 877
 878         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
 879         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 880         rule = MODEST_DIMMING_RULE (user_data);
 881         state = modest_window_get_dimming_state (win);
 882
 883         /* Get the folder view */
 884         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 885                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
 886
 887
 888         /* Check diming rules for folders transfer  */
 889         if (gtk_widget_is_focus (folder_view)) {
 890                 TnyFolderType types[5];
 891
 892                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 893                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 894                 types[2] = TNY_FOLDER_TYPE_SENT;
 895                 types[3] = TNY_FOLDER_TYPE_ROOT;
 896                 types[4] = TNY_FOLDER_TYPE_INBOX;
 897
 898                 /* Apply folder rules */
 899                 if (!dimmed) {
 900                         dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 901                         if (dimmed)
 902                                 modest_dimming_rule_set_notification (rule, _("emev_bd_unabletomove_items"));
 903                 }
 904                 if (!dimmed) {
 905                         dimmed = _selected_folder_is_any_of_type (win, types, 5);
 906                         if (dimmed)
 907                                 modest_dimming_rule_set_notification (rule, _("emev_bd_unabletomove_itemsr"));
 908                 }
 909         }
 910
 911         /* Check diming rules for messages transfer  */
 912         if (!dimmed) {
 913                 dimmed = state->already_opened_msg;
 914                 n_messages = state->n_selected;
 915                 if (dimmed) {
 916                         gchar *message = g_strdup_printf(_("emev_bd_unabletomove_items"), n_messages);
 917                         modest_dimming_rule_set_notification (rule, message);
 918                         g_free(message);
 919                 }
 920         }
 921         if (!dimmed) {
 922                 if (!gtk_widget_is_focus (folder_view))
 923                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 924
 925         }
 926
 927         return dimmed;
 928 }
 929
 930 gboolean
 931 modest_ui_dimming_rules_on_view_window_move_to (ModestWindow *win, gpointer user_data)
 932 {
 933         ModestDimmingRule *rule = NULL;
 934         gboolean dimmed = FALSE;
 935
 936         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 937         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 938         rule = MODEST_DIMMING_RULE (user_data);
 939
 940         /* Check dimmed rule */
 941         if (!dimmed) {
 942                 dimmed = _transfer_mode_enabled (win);
 943                 if (dimmed)
 944                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 945         }
 946         if (!dimmed) {
 947                 if (MODEST_IS_MSG_VIEW_WINDOW (win))
 948                         dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
 949                 if (dimmed)
 950                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_move_mail_attachment"));
 951         }
 952
 953         return dimmed;
 954 }
 955
 956 gboolean
 957 modest_ui_dimming_rules_on_find_msg (ModestWindow *win, gpointer user_data)
 958 {
 959         ModestDimmingRule *rule = NULL;
 960         gboolean dimmed = FALSE;
 961
 962         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 963         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 964         rule = MODEST_DIMMING_RULE (user_data);
 965
 966         /* Check dimmed rule */
 967         if (!dimmed) {
 968                 dimmed = _transfer_mode_enabled (win);
 969                 if (dimmed)
 970                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 971         }
 972
 973         return dimmed;
 974 }
 975
 976 gboolean
 977 modest_ui_dimming_rules_on_paste_msgs (ModestWindow *win, gpointer user_data)
 978 {
 979         ModestDimmingRule *rule = NULL;
 980         TnyFolderType types[3];
 981         gboolean dimmed = FALSE;
 982
 983         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 984         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 985         rule = MODEST_DIMMING_RULE (user_data);
 986
 987         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 988         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 989         types[2] = TNY_FOLDER_TYPE_SENT;
 990
 991         /* Check dimmed rule */
 992         if (!dimmed) {
 993                 dimmed = _clipboard_is_empty (win);
 994                 if (dimmed)
 995                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ecoc_ib_edwin_nothing_to_paste"));
 996         }
 997         if (!dimmed) {
 998                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
 999                 if (dimmed)
1000                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ckct_ib_unable_to_paste_here"));
1001         }
1002         if (!dimmed) {
1003                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
1004                 if (dimmed) {
1005                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ckct_ib_unable_to_paste_here"));
1006                 }
1007         }
1008         if (!dimmed) {
1009                 dimmed = _selected_folder_is_same_as_source (win);
1010                 if (dimmed)
1011                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_copy_samefolder"));
1012         }
1013
1014         return dimmed;
1015 }
1016
1017
1018 gboolean
1019 modest_ui_dimming_rules_on_select_all (ModestWindow *win, gpointer user_data)
1020 {
1021         ModestDimmingRule *rule = NULL;
1022         gboolean dimmed = FALSE;
1023
1024         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1025         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1026         rule = MODEST_DIMMING_RULE (user_data);
1027
1028         /* Check dimmed rule */
1029         if (!dimmed) {
1030                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1031                 if (dimmed)
1032                         modest_dimming_rule_set_notification (rule, "");
1033         }
1034
1035         return dimmed;
1036 }
1037
1038 gboolean
1039 modest_ui_dimming_rules_on_view_attachments (ModestWindow *win, gpointer user_data)
1040 {
1041         ModestDimmingRule *rule = NULL;
1042         gboolean dimmed = FALSE;
1043
1044         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1045         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1046         rule = MODEST_DIMMING_RULE (user_data);
1047
1048         /* Check dimmed rule */
1049         if (!dimmed)
1050                 dimmed = _invalid_attach_selected (win, TRUE, TRUE, FALSE, rule);
1051
1052         if (!dimmed) {
1053                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1054                 if (dimmed) {
1055                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1056                 }
1057         }
1058
1059         return dimmed;
1060 }
1061
1062 gboolean
1063 modest_ui_dimming_rules_on_save_attachments (ModestWindow *win, gpointer user_data)
1064 {
1065         ModestDimmingRule *rule = NULL;
1066         gboolean dimmed = FALSE;
1067
1068         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1069         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1070         rule = MODEST_DIMMING_RULE (user_data);
1071
1072         /* Check dimmed rule */
1073         if (!dimmed)
1074                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, FALSE, rule);
1075
1076         if (!dimmed) {
1077                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1078                 if (dimmed) {
1079                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1080                 }
1081         }
1082
1083         return dimmed;
1084 }
1085
1086 gboolean
1087 modest_ui_dimming_rules_on_remove_attachments (ModestWindow *win, gpointer user_data)
1088 {
1089         ModestDimmingRule *rule = NULL;
1090         const DimmedState *state = NULL;
1091         gboolean dimmed = FALSE;
1092
1093         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1094         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1095         rule = MODEST_DIMMING_RULE (user_data);
1096         state = modest_window_get_dimming_state (win);
1097
1098         /* Check in main window if there's only one message selected */
1099         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1100                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW (win), TRUE, rule);
1101         }
1102
1103         /* Check in view window if there's any attachment selected */
1104         if (!dimmed && MODEST_IS_MSG_VIEW_WINDOW (win)) {
1105                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, TRUE, NULL);
1106                 if (dimmed)
1107                         modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1108         }
1109
1110         /* cannot purge in editable drafts nor pop folders */
1111         if (!dimmed) {
1112                 dimmed = _invalid_folder_for_purge (win, rule);
1113         }
1114
1115         /* Check if the selected message in main window has attachments */
1116         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1117                 dimmed = state->any_has_attachments;
1118                 if (dimmed)
1119                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1120         }
1121
1122         /* Check if all attachments are already purged */
1123         if (!dimmed) {
1124                 dimmed = _purged_attach_selected (win, TRUE, rule);
1125         }
1126
1127         /* Check if the message is already downloaded */
1128         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1129                 dimmed = !_msg_download_completed (MODEST_MAIN_WINDOW (win));
1130                 if (dimmed)
1131                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1132         }
1133
1134
1135         return dimmed;
1136 }
1137
1138 gboolean
1139 modest_ui_dimming_rules_on_undo (ModestWindow *win, gpointer user_data)
1140 {
1141         ModestDimmingRule *rule = NULL;
1142         gboolean dimmed = FALSE;
1143
1144         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1145         rule = MODEST_DIMMING_RULE (user_data);
1146
1147         /* Check dimmed rule */
1148         if (!dimmed) {
1149                 dimmed = _clipboard_is_empty (win);
1150                 if (dimmed)
1151                         modest_dimming_rule_set_notification (rule, "");
1152         }
1153
1154         return dimmed;
1155 }
1156
1157 gboolean
1158 modest_ui_dimming_rules_on_cut (ModestWindow *win, gpointer user_data)
1159 {
1160         ModestDimmingRule *rule = NULL;
1161         gboolean dimmed = FALSE;
1162
1163         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1164         rule = MODEST_DIMMING_RULE (user_data);
1165
1166         /* Check common dimming rules */
1167         if (!dimmed) {
1168                 dimmed = _invalid_clipboard_selected (win, rule);
1169         }
1170
1171         /* Check window specific dimming rules */
1172         if (MODEST_IS_MAIN_WINDOW (win)) {
1173                 if (!dimmed) {
1174                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1175                         if (dimmed)
1176                                 modest_dimming_rule_set_notification (rule, "");
1177                 }
1178                 if (!dimmed) {
1179                         dimmed = _selected_msg_sent_in_progress (win);
1180                         if (dimmed)
1181                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1182                 }
1183         }
1184
1185         return dimmed;
1186 }
1187
1188 gboolean
1189 modest_ui_dimming_rules_on_copy (ModestWindow *win, gpointer user_data)
1190 {
1191         ModestDimmingRule *rule = NULL;
1192         gboolean dimmed = FALSE;
1193
1194         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1195         rule = MODEST_DIMMING_RULE (user_data);
1196
1197         /* Check common dimming rules */
1198         if (!dimmed) {
1199                 dimmed = _invalid_clipboard_selected (win, rule);
1200         }
1201
1202         /* Check window specific dimming rules */
1203         if (MODEST_IS_MAIN_WINDOW (win)) {
1204                 if (!dimmed) {
1205                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1206                         if (dimmed)
1207                                 modest_dimming_rule_set_notification (rule, "");
1208                 }
1209                 if (!dimmed) {
1210                         dimmed = _selected_msg_sent_in_progress (win);
1211                         if (dimmed)
1212                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1213                 }
1214         }
1215
1216         return dimmed;
1217 }
1218
1219 gboolean
1220 modest_ui_dimming_rules_on_view_previous (ModestWindow *win, gpointer user_data)
1221 {
1222         ModestDimmingRule *rule = NULL;
1223         gboolean dimmed = FALSE;
1224
1225         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1226         rule = MODEST_DIMMING_RULE (user_data);
1227
1228         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1229
1230         /* Check dimmed rule */
1231         if (!dimmed) {
1232                 dimmed = _transfer_mode_enabled (win);
1233                 if (dimmed)
1234                         modest_dimming_rule_set_notification (
1235                                         rule, _("mail_ib_notavailable_downloading"));
1236         }
1237         if (!dimmed) {
1238                 dimmed = modest_msg_view_window_first_message_selected (
1239                                 MODEST_MSG_VIEW_WINDOW(win));
1240                 modest_dimming_rule_set_notification (rule, NULL);
1241         }
1242
1243         return dimmed;
1244 }
1245
1246 gboolean
1247 modest_ui_dimming_rules_on_view_next (ModestWindow *win, gpointer user_data)
1248 {
1249         ModestDimmingRule *rule = NULL;
1250         gboolean dimmed = FALSE;
1251
1252         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1253         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1254         rule = MODEST_DIMMING_RULE (user_data);
1255
1256         /* Check dimmed rule */
1257         if (!dimmed) {
1258                 dimmed = _transfer_mode_enabled (win);
1259                 if (dimmed)
1260                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1261         }
1262         if (!dimmed) {
1263                 dimmed = modest_msg_view_window_last_message_selected (MODEST_MSG_VIEW_WINDOW (win));
1264                 modest_dimming_rule_set_notification (rule, NULL);
1265         }
1266
1267         return dimmed;
1268 }
1269
1270
1271 gboolean
1272 modest_ui_dimming_rules_on_tools_smtp_servers (ModestWindow *win, gpointer user_data)
1273 {
1274         const gboolean dimmed =
1275                 !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
1276                         TRUE);
1277
1278         return dimmed;
1279 }
1280
1281 gboolean
1282 modest_ui_dimming_rules_on_cancel_sending (ModestWindow *win, gpointer user_data)
1283 {
1284         ModestDimmingRule *rule = NULL;
1285         TnyFolderType types[1];
1286         guint n_messages = 0;
1287         const DimmedState *state = NULL;
1288         gboolean dimmed = FALSE;
1289
1290         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1291         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1292         rule = MODEST_DIMMING_RULE (user_data);
1293         state = modest_window_get_dimming_state (win);
1294
1295         types[0] = TNY_FOLDER_TYPE_OUTBOX;
1296
1297         /* Check dimmed rules */
1298         if (!dimmed) {
1299                 dimmed = state->already_opened_msg;
1300                 n_messages = state->n_selected;
1301                 if (dimmed)
1302                         modest_dimming_rule_set_notification (rule, _("mcen_ib_message_unableto_cancel_send"));
1303         }
1304         if (!dimmed) {
1305                 dimmed = !_selected_folder_is_any_of_type (win, types, 1);
1306                 if (dimmed)
1307                         modest_dimming_rule_set_notification (rule, "");
1308         }
1309         if (!dimmed) {
1310                 dimmed = !_sending_in_progress (win);
1311                 if (dimmed)
1312                         modest_dimming_rule_set_notification (rule, "");
1313         }
1314
1315         return dimmed;
1316 }
1317
1318 gboolean
1319 modest_ui_dimming_rules_on_send_receive (ModestWindow *win, gpointer user_data)
1320 {
1321         ModestDimmingRule *rule = NULL;
1322         gboolean dimmed = FALSE;
1323
1324         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1325         rule = MODEST_DIMMING_RULE (user_data);
1326
1327         /* Check dimmed rule */
1328         if (!dimmed) {
1329                 dimmed = !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
1330                                                           TRUE);
1331                 if (dimmed)
1332                         modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
1333         }
1334
1335         return dimmed;
1336 }
1337
1338 gboolean
1339 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
1340 {
1341         ModestDimmingRule *rule = NULL;
1342         gboolean dimmed = FALSE;
1343
1344         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1345         rule = MODEST_DIMMING_RULE (user_data);
1346
1347         /* Check dimmed rule */
1348         if (!dimmed) {
1349                 GtkClipboard *clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
1350                 gchar *selection = NULL;
1351                 selection = gtk_clipboard_wait_for_text (clipboard);
1352
1353                 dimmed = !((selection != NULL) && (modest_text_utils_validate_recipient (selection, NULL)));
1354         }
1355
1356         return dimmed;
1357 }
1358
1359 /* *********************** static utility functions ******************** */
1360
1361
1362 static gboolean
1363 _selected_folder_not_writeable (ModestMainWindow *win)
1364 {
1365         GtkWidget *folder_view = NULL;
1366         TnyFolderStore *parent_folder = NULL;
1367         ModestTnyFolderRules rules;
1368         gboolean result = FALSE;
1369
1370         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1371
1372         /* Get folder view */
1373         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1374                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1375         /* If no folder view, always dimmed */
1376         if (!folder_view)
1377                 return TRUE;
1378
1379         /* Get selected folder as parent of new folder to create */
1380         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1381         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1382                 if (parent_folder)
1383                         g_object_unref (parent_folder);
1384                 return TRUE;
1385         }
1386
1387         /* Check dimmed rule */
1388         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1389         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
1390
1391         /* free */
1392         g_object_unref (parent_folder);
1393
1394         return result;
1395 }
1396
1397 static gboolean
1398 _selected_folder_is_root_or_inbox (ModestMainWindow *win)
1399 {
1400         TnyFolderType types[2];
1401         gboolean result = FALSE;
1402
1403         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1404
1405         types[0] = TNY_FOLDER_TYPE_ROOT;
1406         types[1] = TNY_FOLDER_TYPE_INBOX;
1407
1408         /* Check folder type */
1409         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 2);
1410
1411         /* Check pop and MMC accounts */
1412         if (!result) {
1413                 result = _selected_folder_is_MMC_or_POP_root (win);
1414         }
1415
1416         return result;
1417 }
1418
1419
1420 static gboolean
1421 _selected_folder_is_root (ModestMainWindow *win)
1422 {
1423         TnyFolderType types[1];
1424         gboolean result = FALSE;
1425
1426         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1427
1428         /* All accounts are root items: */
1429         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1430                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1431         if (folder_view) {
1432                 gboolean is_account = FALSE;
1433                 TnyFolderStore *folder_store =
1434                         modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1435                 if (folder_store) {
1436                         is_account = TNY_IS_ACCOUNT (folder_store);
1437                         g_object_unref (folder_store);
1438                         folder_store = NULL;
1439                 }
1440
1441                 if (is_account)
1442                         return TRUE;
1443         }
1444
1445         /* Try something more precise: */
1446         types[0] = TNY_FOLDER_TYPE_ROOT;
1447
1448         /* Check folder type */
1449         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 1);
1450
1451         /* Check pop and MMC accounts */
1452         if (!result) {
1453                 result = _selected_folder_is_MMC_or_POP_root (win);
1454         }
1455
1456         return result;
1457 }
1458
1459 static gboolean
1460 _selected_folder_is_MMC_or_POP_root (ModestMainWindow *win)
1461 {
1462         GtkWidget *folder_view = NULL;
1463         TnyFolderStore *parent_folder = NULL;
1464         gboolean result = FALSE;
1465
1466         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1467                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1468         /* Get selected folder as parent of new folder to create */
1469         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1470         if (!parent_folder)
1471                 return TRUE;
1472
1473         if (TNY_IS_ACCOUNT (parent_folder)) {
1474                 /* If it's the local account then do not dim */
1475                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
1476                         result = FALSE;
1477                 } else {
1478                                 /* If it's the MMC root folder then dim it */
1479                         if (!strcmp (tny_account_get_id (TNY_ACCOUNT (parent_folder)), MODEST_MMC_ACCOUNT_ID)) {
1480                                         result = TRUE;
1481                         } else {
1482                                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
1483                                 /* If it's POP then dim */
1484                                 result = (modest_protocol_info_get_transport_store_protocol (proto_str) ==
1485                                                   MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
1486                         }
1487                 }
1488         }
1489         g_object_unref (parent_folder);
1490
1491         return result;
1492 }
1493
1494
1495 static gboolean
1496 _selected_folder_is_empty (ModestMainWindow *win)
1497 {
1498         GtkWidget *folder_view = NULL;
1499         TnyFolderStore *folder = NULL;
1500         gboolean result = FALSE;
1501
1502         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1503
1504         /* Get folder view */
1505         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1506                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1507         /* If no folder view, always dimmed */
1508         if (!folder_view)
1509                 return TRUE;
1510
1511         /* Get selected folder as parent of new folder to create */
1512         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1513         if (!(folder && TNY_IS_FOLDER(folder))) {
1514                 if (folder)
1515                         g_object_unref (folder);
1516                 return TRUE;
1517         }
1518
1519         /* Check folder type */
1520         result = tny_folder_get_all_count (TNY_FOLDER (folder)) == 0;
1521
1522         /* free */
1523         g_object_unref (folder);
1524
1525         return result;
1526 }
1527
1528 static gboolean
1529 _selected_folder_is_same_as_source (ModestWindow *win)
1530 {
1531         ModestEmailClipboard *clipboard = NULL;
1532         GtkWidget *folder_view = NULL;
1533         TnyFolderStore *folder = NULL;
1534         gboolean result = FALSE;
1535
1536         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1537
1538         /* Get folder view */
1539         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1540                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1541         if (!folder_view)
1542                 return FALSE;
1543
1544         /* Get selected folder as destination folder */
1545         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1546         if (!(folder && TNY_IS_FOLDER(folder))) {
1547                 result = FALSE;
1548                 goto frees;
1549         }
1550
1551         /* Check clipboard is cleared */
1552         clipboard = modest_runtime_get_email_clipboard ();
1553         if (modest_email_clipboard_cleared (clipboard)) {
1554                 result = FALSE;
1555                 goto frees;
1556         }
1557
1558         /* Check source folder */
1559         result = modest_email_clipboard_check_source_folder (clipboard,
1560                                                              (const TnyFolder *) folder);
1561
1562         /* Free */
1563  frees:
1564         g_object_unref (folder);
1565
1566         return result;
1567 }
1568
1569 static gboolean
1570 _selected_folder_is_any_of_type (ModestWindow *win,
1571                                  TnyFolderType types[],
1572                                  guint ntypes)
1573 {
1574         GtkWidget *folder_view = NULL;
1575         TnyFolderStore *folder = NULL;
1576         TnyFolderType folder_type;
1577         guint i=0;
1578         gboolean result = FALSE;
1579
1580         /*Get current folder */
1581         if (MODEST_IS_MAIN_WINDOW(win)) {
1582
1583                 /* Get folder view */
1584                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1585                                                                    MODEST_WIDGET_TYPE_FOLDER_VIEW);
1586                 /* If no folder view, always dimmed */
1587                 if (!folder_view)
1588                         return FALSE;
1589
1590                 /* Get selected folder as parent of new folder to create */
1591                 folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1592
1593                 if (!(folder && TNY_IS_FOLDER(folder))) {
1594                         if (folder)
1595                                 g_object_unref (folder);
1596                         return FALSE;
1597                 }
1598
1599                 /* Check folder type */
1600                 result = _folder_is_any_of_type (TNY_FOLDER(folder), types, ntypes);
1601         }
1602         else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
1603                 folder_type = modest_msg_view_window_get_folder_type (MODEST_MSG_VIEW_WINDOW (win));
1604                 for (i=0; i < ntypes; i++) {
1605                         result = result || folder_type == types[i];
1606                 }
1607         }
1608
1609
1610         /* free */
1611         g_object_unref (folder);
1612
1613         return result;
1614 }
1615
1616 static gboolean
1617 _folder_is_any_of_type (TnyFolder *folder,
1618                         TnyFolderType types[],
1619                         guint ntypes)
1620 {
1621         TnyFolderType folder_type;
1622         gboolean result = FALSE;
1623         guint i;
1624
1625         g_return_val_if_fail (TNY_IS_FOLDER(folder), FALSE);
1626
1627         /* Get folder type */
1628         folder_type = modest_tny_folder_guess_folder_type (folder);
1629
1630         /* Check foler type */
1631         for (i=0; i < ntypes; i++) {
1632                 result = result || folder_type == types[i];
1633         }
1634
1635         return result;
1636 }
1637
1638 static gboolean
1639 _selected_folder_is_snd_level (ModestMainWindow *win)
1640 {
1641         GtkWidget *folder_view = NULL;
1642         GtkTreeSelection *sel = NULL;
1643         GtkTreeModel *model = NULL;
1644         GtkTreePath *path = NULL;
1645         GtkTreeIter iter;
1646         TnyFolderStore *folder = NULL;
1647         gboolean result = FALSE;
1648
1649         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
1650
1651         /*Get curent folder */
1652         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1653                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1654         /* If no folder view, always dimmed */
1655         if (!folder_view)
1656                 goto frees;
1657
1658         /* Get selected folder as parent of new folder to create */
1659         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1660         if (!(folder && TNY_IS_FOLDER(folder))) {
1661                 goto frees;
1662         }
1663
1664         /* Check folder level */
1665         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW(folder_view));
1666         if (!gtk_tree_selection_get_selected (sel, &model, &iter))
1667                 goto frees;
1668         path = gtk_tree_model_get_path (model, &iter);
1669         result = gtk_tree_path_get_depth (path) > 2;
1670
1671  frees:
1672         if (folder != NULL)
1673                 g_object_unref (folder);
1674         if (path != NULL)
1675                 gtk_tree_path_free (path);
1676
1677         return result;
1678
1679 }
1680
1681 static gboolean
1682 _clipboard_is_empty (ModestWindow *win)
1683 {
1684         gboolean result = FALSE;
1685
1686         if (MODEST_IS_MAIN_WINDOW (win)) {
1687                 ModestEmailClipboard *clipboard = NULL;
1688                 clipboard = modest_runtime_get_email_clipboard ();
1689                 if (modest_email_clipboard_cleared (clipboard))
1690                  result = TRUE;
1691         }
1692
1693         return result;
1694 }
1695
1696 static gboolean
1697 _invalid_clipboard_selected (ModestWindow *win,
1698                        ModestDimmingRule *rule)
1699 {
1700         const DimmedState *state = NULL;
1701         gboolean result = FALSE;
1702
1703         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1704         state = modest_window_get_dimming_state (win);
1705
1706         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1707                 GtkClipboard *clipboard = NULL;
1708                 gchar *selection = NULL;
1709                 GtkWidget *focused = NULL;
1710
1711                 /* Get clipboard selection*/
1712                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
1713                 selection = gtk_clipboard_wait_for_text (clipboard);
1714
1715                 /* Get focuesed widget */
1716                 focused = gtk_window_get_focus (GTK_WINDOW (win));
1717
1718                 /* Check dimming */
1719                 result = ((selection == NULL) ||
1720                           (MODEST_IS_ATTACHMENTS_VIEW (focused)));
1721
1722                 if (result)
1723                         modest_dimming_rule_set_notification (rule, "");
1724
1725                 if (selection != NULL)
1726                         g_free(selection);
1727         }
1728         else if (MODEST_IS_MAIN_WINDOW (win)) {
1729                 /* Check dimming */
1730                 result = state->n_selected == 0;
1731                 if (result)
1732                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
1733         }
1734
1735         return result;
1736 }
1737
1738
1739 static gboolean
1740 _invalid_attach_selected (ModestWindow *win,
1741                           gboolean unique,
1742                           gboolean for_view,
1743                           gboolean for_remove,
1744                           ModestDimmingRule *rule)
1745 {
1746         GList *attachments, *node;
1747         gint n_selected;
1748         TnyHeaderFlags flags;
1749         gboolean nested_attachments = FALSE;
1750         gboolean selected_messages = FALSE;
1751         const DimmedState *state = NULL;
1752         gboolean result = FALSE;
1753
1754         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1755         state = modest_window_get_dimming_state (win);
1756
1757         if (MODEST_IS_MAIN_WINDOW (win)) {
1758                 flags = TNY_HEADER_FLAG_ATTACHMENTS;
1759                 if (!result)
1760                         result = !state->any_has_attachments;
1761         }
1762         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1763
1764                 /* Get selected atachments */
1765                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1766                 n_selected = g_list_length (attachments);
1767
1768                 /* Check unique */
1769                 if (!result) {
1770                         if (unique)
1771                                 result = n_selected != 1;
1772                         else
1773
1774                                 result = n_selected < 1;
1775                 }
1776
1777                 /* Check attached type (view operation not required) */
1778                 if (!result && !for_view)  {
1779                         for (node = attachments; node != NULL && !result; node = g_list_next (node)) {
1780                                 TnyMimePart *mime_part = TNY_MIME_PART (node->data);
1781                                 TnyList *nested_list = tny_simple_list_new ();
1782                                 if (!for_remove && TNY_IS_MSG (mime_part)) {
1783                                         selected_messages = TRUE;
1784                                         result = TRUE;
1785                                 }
1786                                 tny_mime_part_get_parts (mime_part, nested_list);
1787                                 if (!for_remove && tny_list_get_length (nested_list) > 0) {
1788                                         nested_attachments = TRUE;
1789                                         result = TRUE;
1790                                 }
1791                                 g_object_unref (nested_list);
1792                         }
1793                 }
1794
1795                 /* Set notifications */
1796                 if (result && rule != NULL) {
1797                         if (selected_messages) {
1798                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_save_attach_mail"));
1799                         } else if (nested_attachments) {
1800                                 modest_dimming_rule_set_notification (rule, _("FIXME:unable to save attachments with nested elements"));
1801                         } else if (n_selected == 0) {
1802                                 modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1803                         } else if (unique) {
1804                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_display_more"));
1805                         }
1806                 }
1807
1808                 /* Free */
1809                 g_list_free (attachments);
1810         }
1811
1812         return result;
1813 }
1814
1815 static gboolean
1816 _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule)
1817 {
1818         GList *attachments = NULL, *node;
1819         gint purged = 0;
1820         gint n_attachments = 0;
1821         gboolean result = FALSE;
1822
1823         /* This should check if _all_ the attachments are already purged. If only some
1824          * of them are purged, then it does not cause dim as there's a confirmation dialog
1825          * for removing only local attachments */
1826
1827         /* Get selected atachments */
1828         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1829                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1830         } else if (MODEST_IS_MAIN_WINDOW (win)) {
1831                 /* If we're in main window, we won't know if there are already purged attachments */
1832                 return FALSE;
1833         }
1834
1835         if (attachments == NULL)
1836                 return FALSE;
1837
1838         for (node = attachments; node != NULL; node = g_list_next (node)) {
1839                 TnyMimePart *mime_part = TNY_MIME_PART (node->data);
1840                 if (tny_mime_part_is_purged (mime_part)) {
1841                         purged++;
1842                 }
1843                 n_attachments++;
1844         }
1845
1846         /* Free */
1847         g_list_free (attachments);
1848
1849         if (all)
1850                 result = (purged == n_attachments);
1851         else
1852                 result = (purged > 0);
1853
1854         if (result && (rule != NULL))
1855                 modest_dimming_rule_set_notification (rule, _("mail_ib_attachment_already_purged"));
1856
1857         return result;
1858 }
1859
1860 static gboolean
1861 _invalid_msg_selected (ModestMainWindow *win,
1862                        gboolean unique,
1863                        ModestDimmingRule *rule)
1864 {
1865         GtkWidget *folder_view = NULL;
1866         const DimmedState *state = NULL;
1867         gboolean result = FALSE;
1868
1869         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1870         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (rule), FALSE);
1871         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
1872
1873         /* Get folder view to check focus */
1874         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
1875                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1876
1877         /* Check dimmed rule (TODO: check focus on widgets */
1878         if (!result) {
1879                 result = ((state->n_selected == 0 ) ||
1880                           (gtk_widget_is_focus (folder_view)));
1881                 if (result)
1882                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
1883         }
1884         if (!result && unique) {
1885                 result = state->n_selected > 1;
1886                 if (result)
1887                         modest_dimming_rule_set_notification (rule, _("mcen_ib_select_one_message"));
1888         }
1889
1890         return result;
1891 }
1892
1893
1894 static gboolean
1895 _msg_download_in_progress (ModestMsgViewWindow *win)
1896 {
1897         gboolean result = FALSE;
1898
1899         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW (win), FALSE);
1900
1901         result = modest_msg_view_window_toolbar_on_transfer_mode (win);
1902
1903         return result;
1904 }
1905
1906 static gboolean
1907 _msg_download_completed (ModestMainWindow *win)
1908 {
1909         const DimmedState *state = modest_window_get_dimming_state (MODEST_WINDOW(win));
1910         return state->any_marked_as_cached;
1911 }
1912
1913 static void
1914 fill_list_of_caches (gpointer key, gpointer value, gpointer userdata)
1915 {
1916         GSList **send_queues = (GSList **) userdata;
1917         *send_queues = g_slist_prepend (*send_queues, value);
1918 }
1919
1920 static gboolean
1921 _selected_msg_sent_in_progress (ModestWindow *win)
1922 {
1923         const DimmedState *state = modest_window_get_dimming_state (win);
1924         return state->sent_in_progress;
1925 }
1926
1927
1928 static gboolean
1929 _sending_in_progress (ModestWindow *win)
1930 {
1931         gboolean result = FALSE;
1932
1933         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW (win), FALSE);
1934
1935         /* Check if send operation is in progress */
1936         result = modest_main_window_send_receive_in_progress (MODEST_MAIN_WINDOW (win));
1937
1938         return result;
1939 }
1940
1941 static gboolean
1942 _invalid_folder_for_purge (ModestWindow *win,
1943                            ModestDimmingRule *rule)
1944 {
1945         TnyMsg *msg = NULL;
1946         TnyFolder *folder = NULL;
1947         TnyAccount *account = NULL;
1948         gboolean result = FALSE;
1949
1950         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1951
1952                 /* Get folder and account of message */
1953                 msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
1954                 g_return_val_if_fail(msg != NULL, TRUE);
1955                 folder = tny_msg_get_folder (msg);
1956                 if (folder == NULL) {
1957                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1958                         goto frees;
1959                 }
1960                 g_object_unref (msg);
1961         } else if (MODEST_IS_MAIN_WINDOW (win)) {
1962                 GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
1963                                                                               MODEST_WIDGET_TYPE_FOLDER_VIEW);
1964                 if (!folder_view)
1965                         return FALSE;
1966                 folder = TNY_FOLDER (modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view)));
1967                 if (folder == NULL || ! TNY_IS_FOLDER (folder))
1968                         goto frees;
1969         } else {
1970                 g_return_val_if_reached (FALSE);
1971         }
1972         account = modest_tny_folder_get_account (folder);
1973         if (account == NULL) goto frees;
1974
1975         /* Check account */
1976         if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (account))) {
1977                 TnyFolderType types[2];
1978                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
1979                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
1980
1981                 if (_selected_folder_is_any_of_type (win, types, 2)) {
1982                         result = TRUE;
1983                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_editable_msg"));
1984                 } else {
1985                         /* We're currently disabling purge in any local store */
1986                         result = TRUE;
1987                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1988                 }
1989         } else {
1990                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (account));
1991                 /* If it's POP then dim */
1992                 if (modest_protocol_info_get_transport_store_protocol (proto_str) ==
1993                     MODEST_PROTOCOL_STORE_POP) {
1994                         GList *attachments = NULL;
1995                         gint n_selected = 0;
1996                         result = TRUE;
1997
1998                         /* TODO: This check is here to prevent a gwarning, but this looks like a logic error.
1999                          * murrayc */
2000                         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2001                                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2002                                 n_selected = g_list_length (attachments);
2003                                 g_list_free (attachments);
2004                         }
2005
2006                         modest_dimming_rule_set_notification (rule,
2007                                                               ngettext ("mail_ib_unable_to_pure_attach_pop_mail_singular",
2008                                                                         "mail_ib_unable_to_pure_attach_pop_mail_plural",
2009                                                                         n_selected));
2010                 }
2011         }
2012
2013 frees:
2014         if (folder != NULL)
2015                 g_object_unref (folder);
2016         if (account != NULL)
2017                 g_object_unref (account);
2018
2019         return result;
2020 }
2021
2022 static gboolean
2023 _transfer_mode_enabled (ModestWindow *win)
2024 {
2025         gboolean result = FALSE;
2026
2027         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW (win), FALSE);
2028
2029         /* Check dimming */
2030         result = modest_msg_view_window_transfer_mode_enabled (MODEST_MSG_VIEW_WINDOW (win));
2031
2032         return result;
2033 }
2034