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-ui-actions.h"
  37 #include "modest-account-mgr-helpers.h"
  38 #include "modest-dimming-rule.h"
  39 #include "modest-debug.h"
  40 #include "modest-tny-folder.h"
  41 #include "modest-tny-account.h"
  42 #include "modest-tny-msg.h"
  43 #include "modest-tny-mime-part.h"
  44 #include "modest-text-utils.h"
  45 #include "widgets/modest-folder-view.h"
  46 #include "modest-address-book.h"
  47 #include <widgets/modest-attachments-view.h>
  48 #include <modest-runtime.h>
  49 #include <tny-simple-list.h>
  50 #include <tny-merge-folder.h>
  51 #include <widgets/modest-recpt-editor.h>
  52 #include <gtkhtml/gtkhtml.h>
  53 #include <modest-runtime.h>
  54 #include <widgets/modest-header-window.h>
  55 #include <widgets/modest-folder-window.h>
  56
  57
  58 static gboolean _invalid_attach_selected (ModestWindow *win,
  59                                           gboolean unique, gboolean for_view, gboolean for_remove,
  60                                           ModestDimmingRule *rule);
  61 static gboolean _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule);
  62 static gboolean _invalid_clipboard_selected (ModestWindow *win, ModestDimmingRule *rule);
  63 static gboolean _selected_folder_is_any_of_type (ModestWindow *win, TnyFolderType types[], guint ntypes);
  64 static gboolean _msg_download_in_progress (ModestWindow *win);
  65 static gboolean _selected_msg_sent_in_progress (ModestWindow *win);
  66 static gboolean _invalid_folder_for_purge (ModestWindow *win, ModestDimmingRule *rule);
  67 static gboolean _transfer_mode_enabled (ModestWindow *win);
  68 static void fill_list_of_caches (gpointer key, gpointer value, gpointer userdata);
  69 static gboolean _send_receive_in_progress (ModestWindow *win);
  70 static gboolean _msgs_send_in_progress (void);
  71 static gboolean _all_msgs_in_sending_status (ModestHeaderView *header_view) G_GNUC_UNUSED;
  72 static gboolean _forbid_outgoing_xfers (ModestWindow *window);
  73
  74
  75
  76 static DimmedState *
  77 _define_msg_view_window_dimming_state (ModestMsgViewWindow *window)
  78 {
  79         DimmedState *state = NULL;
  80         TnyHeader *header = NULL;
  81         ModestCacheMgr *cache_mgr = NULL;
  82         GHashTable *send_queue_cache = NULL;
  83         ModestTnySendQueue *send_queue = NULL;
  84         GSList *send_queues = NULL, *node = NULL;
  85         gboolean found = FALSE;
  86         gchar *msg_uid = NULL;
  87         TnyHeaderFlags flags;
  88         gboolean all_deleted = TRUE;
  89         gboolean all_seen = TRUE;
  90         gboolean all_cached = TRUE;
  91         gboolean all_has_attach = TRUE;
  92
  93         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(window), NULL);
  94
  95         /* Init state */
  96         state = g_slice_new0 (DimmedState);
  97         state->n_selected = 0;
  98         state->already_opened_msg = 0;
  99         state->any_marked_as_deleted = FALSE;
 100         state->all_marked_as_deleted = FALSE;
 101         state->any_marked_as_seen = FALSE;
 102         state->all_marked_as_seen = FALSE;
 103         state->any_marked_as_cached = FALSE;
 104         state->all_marked_as_cached = FALSE;
 105         state->any_has_attachments = FALSE;
 106         state->all_has_attachments = FALSE;
 107         state->sent_in_progress = FALSE;
 108
 109         header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW(window));
 110         if (header == NULL)
 111                 return state;
 112         g_return_val_if_fail (TNY_IS_HEADER(header), state);
 113         flags = tny_header_get_flags (header);
 114
 115         /* Selected */
 116         state->n_selected++;
 117
 118         /* Mark as deleted */
 119         all_deleted = all_deleted && (flags & TNY_HEADER_FLAG_DELETED);
 120         state->all_marked_as_deleted = all_deleted;
 121         if (!state->any_marked_as_deleted)
 122                 state->any_marked_as_deleted = flags & TNY_HEADER_FLAG_DELETED;
 123
 124         /* Mark as seen */
 125         all_seen = all_seen && (flags & TNY_HEADER_FLAG_SEEN);
 126         state->all_marked_as_seen = all_seen;
 127         if (!state->any_marked_as_seen)
 128                 state->any_marked_as_seen = flags & TNY_HEADER_FLAG_SEEN;
 129
 130         /* Mark as cached */
 131         all_cached = all_cached && (flags & TNY_HEADER_FLAG_CACHED);
 132         state->all_marked_as_cached = all_cached;
 133         if (!state->any_marked_as_cached)
 134                 state->any_marked_as_cached = flags & TNY_HEADER_FLAG_CACHED;
 135
 136         /* Mark has_attachments */
 137         all_has_attach = all_has_attach && (flags & TNY_HEADER_FLAG_ATTACHMENTS);
 138         state->all_has_attachments = all_has_attach;
 139         if (!state->any_has_attachments)
 140                 state->any_has_attachments = (flags & TNY_HEADER_FLAG_ATTACHMENTS)?1:0;
 141
 142         /* sent in progress */
 143         msg_uid = modest_tny_send_queue_get_msg_id (header);
 144         if (!state->sent_in_progress) {
 145                 cache_mgr = modest_runtime_get_cache_mgr ();
 146                 send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
 147                                                                MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
 148
 149                 g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
 150
 151                 for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
 152                         send_queue = MODEST_TNY_SEND_QUEUE (node->data);
 153
 154                         /* Check if msg uid is being processed inside send queue */
 155                         found = modest_tny_send_queue_msg_is_being_sent (send_queue, msg_uid);
 156                 }
 157                 state->sent_in_progress = found;
 158         }
 159
 160         /* Free */
 161         g_free(msg_uid);
 162         g_object_unref (header);
 163         g_slist_free (send_queues);
 164
 165         return state;
 166 }
 167
 168
 169 DimmedState *
 170 modest_ui_dimming_rules_define_dimming_state (ModestWindow *window)
 171 {
 172         DimmedState *state = NULL;
 173
 174         g_return_val_if_fail (MODEST_IS_WINDOW(window), NULL);
 175
 176
 177         if (MODEST_IS_MSG_VIEW_WINDOW (window)) {
 178                 state = _define_msg_view_window_dimming_state (MODEST_MSG_VIEW_WINDOW(window));
 179         }
 180
 181         return state;
 182 }
 183
 184 gboolean
 185 modest_ui_dimming_rules_on_new_msg (ModestWindow *win, gpointer user_data)
 186 {
 187         ModestDimmingRule *rule = NULL;
 188         gboolean dimmed = FALSE;
 189
 190         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 191         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 192         rule = MODEST_DIMMING_RULE (user_data);
 193
 194         /* Check dimmed rule */
 195         return dimmed;
 196 }
 197
 198
 199 gboolean
 200 modest_ui_dimming_rules_on_delete (ModestWindow *win, gpointer user_data)
 201 {
 202         ModestDimmingRule *rule = NULL;
 203         gboolean dimmed = FALSE;
 204
 205         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 206         rule = MODEST_DIMMING_RULE (user_data);
 207
 208         if (MODEST_IS_FOLDER_WINDOW (win)) {
 209                 dimmed = modest_ui_dimming_rules_on_folder_window_delete (win, user_data);
 210         } else if (MODEST_IS_HEADER_WINDOW (win)) {
 211
 212                 if (!dimmed)
 213                         dimmed = _transfer_mode_enabled (win);
 214
 215                 if (dimmed)
 216                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 217
 218                 if (!dimmed) {
 219                         GtkWidget *header_view;
 220                         TnyFolder *folder;
 221
 222                         header_view = GTK_WIDGET (modest_header_window_get_header_view (MODEST_HEADER_WINDOW (win)));
 223                         folder = modest_header_view_get_folder (MODEST_HEADER_VIEW (header_view));
 224                         if (folder) {
 225                                 dimmed = (tny_folder_get_all_count (TNY_FOLDER (folder)) == 0) ||
 226                                         modest_header_view_is_empty (MODEST_HEADER_VIEW (header_view));
 227
 228                                 if (!dimmed &&
 229                                     (tny_folder_get_folder_type (TNY_FOLDER (folder)) == TNY_FOLDER_TYPE_OUTBOX)) {
 230                                         dimmed = _all_msgs_in_sending_status (MODEST_HEADER_VIEW (header_view));;
 231                                 }
 232                                 g_object_unref (folder);
 233                         }
 234                 }
 235         }
 236
 237         return dimmed;
 238 }
 239
 240
 241 gboolean
 242 modest_ui_dimming_rules_on_sort (ModestWindow *win, gpointer user_data)
 243 {
 244         gboolean dimmed = FALSE;
 245
 246         if (MODEST_IS_HEADER_WINDOW (win)) {
 247                 return FALSE;
 248         }
 249
 250         return dimmed;
 251 }
 252
 253 gboolean
 254 modest_ui_dimming_rules_on_rename_folder (ModestWindow *win, gpointer user_data)
 255 {
 256         ModestDimmingRule *rule = NULL;
 257         TnyFolderType types[4];
 258         gboolean dimmed = FALSE;
 259
 260         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 261         rule = MODEST_DIMMING_RULE (user_data);
 262
 263         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 264         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 265         types[2] = TNY_FOLDER_TYPE_SENT;
 266         types[3] = TNY_FOLDER_TYPE_ARCHIVE;
 267
 268         if (MODEST_IS_FOLDER_WINDOW (win)) {
 269                 ModestFolderView *folder_view;
 270                 folder_view = modest_folder_window_get_folder_view (MODEST_FOLDER_WINDOW (win));
 271                 dimmed = !modest_folder_view_any_folder_fulfils_rules (folder_view,
 272                                                                        MODEST_FOLDER_RULES_FOLDER_NON_RENAMEABLE);
 273         }
 274
 275         if (!dimmed) {
 276                 dimmed = _selected_folder_is_any_of_type (win, types, 4);
 277                 if (dimmed)
 278                         modest_dimming_rule_set_notification (rule, "");
 279         }
 280
 281         return dimmed;
 282 }
 283
 284
 285 gboolean
 286 modest_ui_dimming_rules_on_reply_msg (ModestWindow *win, gpointer user_data)
 287 {
 288         ModestDimmingRule *rule = NULL;
 289         gboolean dimmed = FALSE;
 290         TnyFolderType types[3];
 291
 292         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 293         rule = MODEST_DIMMING_RULE (user_data);
 294
 295         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 296         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 297         types[2] = TNY_FOLDER_TYPE_ROOT;
 298
 299         /* Check dimmed rule */
 300         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 301         if (dimmed)
 302                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 303
 304
 305         /* msg view window dimming rules */
 306         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
 307
 308                 /* This could happen if we load the msg view window with a
 309                    preview before loading the full message */
 310                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
 311                 if (!msg) {
 312                         dimmed = TRUE;
 313                 } else {
 314                         g_object_unref (msg);
 315                 }
 316
 317                 if (!dimmed) {
 318                         dimmed = _transfer_mode_enabled (win);
 319                         if (dimmed)
 320                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 321                 }
 322                 if (!dimmed) {
 323                         dimmed = _msg_download_in_progress (win);
 324                         if (dimmed)
 325                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 326                 }
 327         }
 328
 329         return dimmed;
 330 }
 331
 332
 333 gboolean
 334 modest_ui_dimming_rules_always_dimmed (ModestWindow *win, gpointer user_data)
 335 {
 336         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 337
 338         return TRUE;
 339 }
 340
 341 static gboolean
 342 _message_already_sent (ModestMsgViewWindow *view_window)
 343 {
 344         TnyHeader *header;
 345         TnyFolder *folder;
 346         gboolean already_sent = FALSE;
 347
 348         header = modest_msg_view_window_get_header (view_window);
 349         if (header) {
 350                 folder = tny_header_get_folder (header);
 351                 if (folder) {
 352                         if (modest_tny_folder_guess_folder_type (folder) ==
 353                             TNY_FOLDER_TYPE_OUTBOX) {
 354                                 ModestTnySendQueueStatus status =
 355                                         modest_tny_all_send_queues_get_msg_status (header);
 356                                 if (status == MODEST_TNY_SEND_QUEUE_UNKNOWN ||
 357                                     status == MODEST_TNY_SEND_QUEUE_SENDING)
 358                                         already_sent = TRUE;
 359                         }
 360                         g_object_unref (folder);
 361                 }
 362                 g_object_unref (header);
 363         }
 364         return already_sent;
 365 }
 366
 367
 368 gboolean
 369 modest_ui_dimming_rules_on_delete_msg (ModestWindow *win, gpointer user_data)
 370 {
 371         ModestDimmingRule *rule = NULL;
 372         const DimmedState *state = NULL;
 373         gboolean dimmed = FALSE;
 374
 375         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 376         rule = MODEST_DIMMING_RULE (user_data);
 377         state = modest_window_get_dimming_state (win);
 378
 379         /* If we're in transfer mode then do not allow to delete messages */
 380         dimmed = _transfer_mode_enabled (win);
 381         if (dimmed) {
 382                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 383                 return dimmed;
 384         }
 385
 386         /* Check dimmed rule */
 387         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
 388                 /* This could happen if we load the msg view window with a
 389                    preview before loading the full message */
 390                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
 391                 if (!msg) {
 392                         dimmed = TRUE;
 393                 } else {
 394                         g_object_unref (msg);
 395                 }
 396
 397                 if (!dimmed) {
 398                         if (state)
 399                                 dimmed = state->any_marked_as_deleted;
 400                         if (dimmed) {
 401                                 gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 402                                 modest_dimming_rule_set_notification (rule, msg);
 403                                 g_free (msg);
 404                         }
 405                 }
 406                 if (!dimmed) {
 407                         if (state)
 408                                 dimmed = state->sent_in_progress;
 409                         if (dimmed)
 410                                 modest_dimming_rule_set_notification (rule, _CS_UNABLE_TO_DELETE);
 411                 }
 412
 413                 /* This could happen if we're viewing a message of the
 414                    outbox that has been already sent */
 415                 if (!dimmed)
 416                         dimmed = _message_already_sent (MODEST_MSG_VIEW_WINDOW(win));
 417
 418                 /* The delete button should be dimmed when viewing an attachment,
 419                  * but should be enabled when viewing a message from the list,
 420                  * or when viewing a search result.
 421                  */
 422                 if (!dimmed) {
 423                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
 424                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW(win));
 425                                 if (dimmed) {
 426                                         modest_dimming_rule_set_notification (rule, _CS_UNABLE_TO_DELETE);
 427                                 }
 428                         }
 429                 }
 430         }
 431
 432         return dimmed;
 433 }
 434
 435 gboolean
 436 modest_ui_dimming_rules_on_details (ModestWindow *win, gpointer user_data)
 437 {
 438         ModestDimmingRule *rule = NULL;
 439         gboolean dimmed = FALSE;
 440
 441         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 442         rule = MODEST_DIMMING_RULE (user_data);
 443
 444         {
 445                 /* Check dimmed rule */
 446                 if (MODEST_IS_MSG_VIEW_WINDOW (win))
 447                         dimmed = _msg_download_in_progress (win);
 448                 if (dimmed)
 449                         modest_dimming_rule_set_notification (rule, "");
 450         }
 451
 452         return dimmed;
 453 }
 454
 455 gboolean
 456 modest_ui_dimming_rules_on_fetch_images (ModestWindow *win, gpointer user_data)
 457 {
 458         gboolean dimmed = FALSE;
 459         ModestDimmingRule *rule = NULL;
 460
 461         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW (win), FALSE);
 462         rule = MODEST_DIMMING_RULE (user_data);
 463
 464         dimmed = !modest_msg_view_window_has_blocked_external_images (MODEST_MSG_VIEW_WINDOW (win));
 465
 466         if (!dimmed) {
 467                 dimmed = _transfer_mode_enabled (win);
 468                 if (dimmed)
 469                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 470         }
 471         if (!dimmed) {
 472                 dimmed = _msg_download_in_progress (win);
 473                 if (dimmed)
 474                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 475         }
 476
 477         return dimmed;
 478 }
 479
 480
 481 gboolean
 482 modest_ui_dimming_rules_on_mark_as_read_msg_in_view (ModestWindow *win, gpointer user_data)
 483 {
 484         ModestDimmingRule *rule = NULL;
 485         TnyHeader *header;
 486         TnyHeaderFlags flags;
 487         gboolean dimmed = FALSE;
 488
 489
 490         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 491         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 492         rule = MODEST_DIMMING_RULE (user_data);
 493
 494         header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW (win));
 495         if (!header) {
 496                 dimmed = TRUE;
 497         }
 498
 499         /* If the viewer is showing a message sent as attachment */
 500         if (!dimmed)
 501                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
 502
 503         if (!dimmed) {
 504                 flags = tny_header_get_flags (header);
 505                 if (flags & TNY_HEADER_FLAG_SEEN)
 506                         dimmed = TRUE;
 507         }
 508
 509         if (header)
 510                 g_object_unref (header);
 511         return dimmed;
 512 }
 513
 514
 515 gboolean
 516 modest_ui_dimming_rules_on_mark_as_unread_msg_in_view (ModestWindow *win, gpointer user_data)
 517 {
 518         ModestDimmingRule *rule = NULL;
 519         TnyHeader *header;
 520         TnyHeaderFlags flags;
 521         gboolean dimmed = FALSE;
 522
 523
 524         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 525         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 526         rule = MODEST_DIMMING_RULE (user_data);
 527
 528         header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW (win));
 529         if (!header) {
 530                 dimmed = TRUE;
 531         }
 532
 533         /* If the viewer is showing a message sent as attachment */
 534         if (!dimmed)
 535                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
 536
 537         if (!dimmed) {
 538                 flags = tny_header_get_flags (header);
 539                 if (!(flags & TNY_HEADER_FLAG_SEEN))
 540                         dimmed = TRUE;
 541         }
 542
 543         if (header)
 544                 g_object_unref (header);
 545         return dimmed;
 546 }
 547
 548 gboolean
 549 modest_ui_dimming_rules_on_move_to (ModestWindow *win, gpointer user_data)
 550 {
 551         ModestDimmingRule *rule = NULL;
 552         gboolean dimmed = FALSE;
 553
 554         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 555         rule = MODEST_DIMMING_RULE (user_data);
 556
 557         if (MODEST_IS_HEADER_WINDOW (win))
 558                 dimmed = modest_ui_dimming_rules_on_header_window_move_to (win, user_data);
 559         else if (MODEST_IS_FOLDER_WINDOW (win))
 560                 dimmed = modest_ui_dimming_rules_on_folder_window_move_to (win, user_data);
 561         else if (MODEST_IS_MSG_VIEW_WINDOW (win))
 562                  dimmed = modest_ui_dimming_rules_on_view_window_move_to (win, user_data);
 563
 564         return dimmed;
 565 }
 566
 567
 568 static gboolean
 569 _forbid_outgoing_xfers (ModestWindow *window)
 570 {
 571         const gchar *account_name = NULL;
 572         TnyAccount *account = NULL;
 573         gboolean dimmed = FALSE;
 574
 575 #ifdef MODEST_TOOLKIT_HILDON2
 576         /* We cannot just get the active account because the active
 577            account of a header window that shows the headers of a
 578            local account is the ID of the remote account */
 579         if (MODEST_IS_HEADER_WINDOW (window)) {
 580                 ModestHeaderView *header_view;
 581                 TnyFolder *folder;
 582
 583                 header_view = modest_header_window_get_header_view ((ModestHeaderWindow *) window);
 584                 folder = modest_header_view_get_folder (header_view);
 585
 586                 if (folder) {
 587                         account = modest_tny_folder_get_account (folder);
 588                         g_object_unref (folder);
 589                 }
 590         }
 591 #endif
 592
 593         if (!account) {
 594                 account_name = modest_window_get_active_account (window);
 595                 account = modest_tny_account_store_get_server_account (modest_runtime_get_account_store (),
 596                                                                        account_name,
 597                                                                        TNY_ACCOUNT_TYPE_STORE);
 598         }
 599
 600         if (account) {
 601                 ModestProtocolType protocol_type;
 602
 603                 protocol_type = modest_tny_account_get_protocol_type (account);
 604                 dimmed  = modest_protocol_registry_protocol_type_has_tag
 605                         (modest_runtime_get_protocol_registry (),
 606                          protocol_type,
 607                          MODEST_PROTOCOL_REGISTRY_STORE_FORBID_OUTGOING_XFERS);
 608
 609                 g_object_unref (account);
 610         }
 611         return dimmed;
 612 }
 613
 614 gboolean
 615 modest_ui_dimming_rules_on_view_window_move_to (ModestWindow *win, gpointer user_data)
 616 {
 617         ModestDimmingRule *rule = NULL;
 618         gboolean dimmed = FALSE;
 619
 620         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 621         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 622         rule = MODEST_DIMMING_RULE (user_data);
 623
 624         /* This could happen if we load the msg view window with a
 625            preview before loading the full message */
 626         TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
 627         if (!msg) {
 628                 return TRUE;
 629         } else {
 630                 g_object_unref (msg);
 631         }
 632
 633         /* Check dimmed rule */
 634         dimmed = _transfer_mode_enabled (win);
 635         if (dimmed)
 636                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 637
 638         if (!dimmed)
 639                 dimmed = _forbid_outgoing_xfers (win);
 640
 641         if (!dimmed) {
 642                 const DimmedState *state = modest_window_get_dimming_state (win);
 643                 if (state) {
 644                         dimmed = state->any_marked_as_deleted;
 645                         if (dimmed) {
 646                                 gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 647                                 modest_dimming_rule_set_notification (rule, msg);
 648                                 g_free (msg);
 649                         }
 650                 }
 651         }
 652
 653         if (!dimmed) {
 654                 dimmed = _selected_msg_sent_in_progress (win);
 655                 if (dimmed)
 656                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_item"));
 657         }
 658
 659         /* This could happen if we're viewing a message of the outbox
 660            that has been already sent */
 661         if (!dimmed)
 662                 dimmed = _message_already_sent (MODEST_MSG_VIEW_WINDOW(win));
 663
 664         if (!dimmed) {
 665                 if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
 666                         /* The move_to button should be dimmed when viewing an attachment,
 667                          * but should be enabled when viewing a message from the list,
 668                          * or when viewing a search result.
 669                          */
 670                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
 671                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
 672                         }
 673                 }
 674                 if (dimmed)
 675                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_item"));
 676         }
 677
 678         return dimmed;
 679 }
 680
 681 gboolean
 682 modest_ui_dimming_rules_on_find_in_msg (ModestWindow *win, gpointer user_data)
 683 {
 684         ModestDimmingRule *rule = NULL;
 685         gboolean dimmed = FALSE;
 686
 687         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 688         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 689         rule = MODEST_DIMMING_RULE (user_data);
 690
 691         /* This could happen if we load the msg view window with a
 692            preview before loading the full message */
 693         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
 694                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
 695                 if (!msg) {
 696                         return TRUE;
 697                 } else {
 698                         g_object_unref (msg);
 699                 }
 700         }
 701
 702         /* Check dimmed rule */
 703         dimmed = _transfer_mode_enabled (win);
 704         if (dimmed)
 705                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 706
 707         return dimmed;
 708 }
 709
 710
 711 gboolean
 712 modest_ui_dimming_rules_on_select_all (ModestWindow *win, gpointer user_data)
 713 {
 714         ModestDimmingRule *rule = NULL;
 715         gboolean dimmed = FALSE;
 716         GtkWidget *focused = NULL;
 717
 718         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 719         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 720         rule = MODEST_DIMMING_RULE (user_data);
 721
 722         focused = gtk_container_get_focus_child ((GtkContainer *) win);
 723
 724         if (!dimmed && GTK_IS_ENTRY (focused)) {
 725                 const gchar *current_text;
 726                 current_text = gtk_entry_get_text (GTK_ENTRY (focused));
 727                 dimmed = ((current_text == NULL) || (current_text[0] == '\0'));
 728         }
 729
 730         if (!dimmed && GTK_IS_TEXT_VIEW (focused)) {
 731                 GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
 732                 dimmed = (gtk_text_buffer_get_char_count (buffer) < 1);
 733         }
 734
 735         if (dimmed && MODEST_IS_ATTACHMENTS_VIEW (focused))
 736                 dimmed = FALSE;
 737         return dimmed;
 738 }
 739
 740 gboolean
 741 modest_ui_dimming_rules_on_view_attachments (ModestWindow *win, gpointer user_data)
 742 {
 743         ModestDimmingRule *rule = NULL;
 744         gboolean dimmed = FALSE;
 745
 746         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 747         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 748         rule = MODEST_DIMMING_RULE (user_data);
 749
 750         /* Check dimmed rule */
 751         dimmed = _invalid_attach_selected (win, TRUE, TRUE, FALSE, rule);
 752
 753         if (!dimmed) {
 754                 dimmed = _purged_attach_selected (win, FALSE, NULL);
 755                 if (dimmed) {
 756                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
 757                 }
 758         }
 759
 760         return dimmed;
 761 }
 762
 763 static gboolean
 764 _not_valid_attachments (ModestWindow *win, gboolean save_not_remove)
 765 {
 766         gint n_attachments;
 767         TnyList *attachments;
 768         gboolean result = FALSE;
 769
 770         /* Get atachments */
 771         attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
 772         n_attachments = tny_list_get_length (attachments);
 773
 774         /* Check unique */
 775         if (!result) {
 776                 result = n_attachments < 1;
 777         }
 778
 779         /* Check attached type (view operation not required) */
 780         if (!result)  {
 781                 gint n_valid = 0;
 782
 783                 TnyIterator *iter;
 784                 iter = tny_list_create_iterator (attachments);
 785                 while (!tny_iterator_is_done (iter)) {
 786                         gboolean is_valid = TRUE;
 787                         TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
 788                         TnyList *nested_list = tny_simple_list_new ();
 789                         tny_mime_part_get_parts (mime_part, nested_list);
 790
 791                         if (tny_mime_part_is_purged (mime_part)) {
 792                                 is_valid = FALSE;
 793                         }
 794
 795                         if (is_valid && modest_tny_mime_part_is_msg (mime_part)) {
 796                                 TnyMsg *window_msg;
 797                                 window_msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
 798                                 if (window_msg) {
 799                                         if (save_not_remove && (TnyMimePart *) window_msg != mime_part) {
 800                                                 is_valid = FALSE;
 801                                         }
 802                                         g_object_unref (window_msg);
 803                                 }
 804                                 if (is_valid && save_not_remove && tny_list_get_length (nested_list) > 0) {
 805                                         is_valid = FALSE;
 806                                 }
 807                         }
 808                         g_object_unref (nested_list);
 809                         g_object_unref (mime_part);
 810                         tny_iterator_next (iter);
 811
 812                         if (is_valid)
 813                                 n_valid++;
 814                 }
 815                 g_object_unref (iter);
 816                 result = (n_valid == 0);
 817         }
 818         g_object_unref (attachments);
 819         return result;
 820
 821 }
 822
 823 gboolean
 824 modest_ui_dimming_rules_on_save_attachments (ModestWindow *win, gpointer user_data)
 825 {
 826         ModestDimmingRule *rule = NULL;
 827         gboolean dimmed = FALSE;
 828
 829         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 830         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 831         rule = MODEST_DIMMING_RULE (user_data);
 832
 833         /* Check dimmed rule */
 834
 835         dimmed = _not_valid_attachments (win, TRUE);
 836         return dimmed;
 837 }
 838
 839 gboolean
 840 modest_ui_dimming_rules_on_remove_attachments (ModestWindow *win, gpointer user_data)
 841 {
 842         ModestDimmingRule *rule = NULL;
 843         const DimmedState *state = NULL;
 844         gboolean dimmed = FALSE;
 845
 846         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 847         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 848         rule = MODEST_DIMMING_RULE (user_data);
 849         state = modest_window_get_dimming_state (win);
 850
 851
 852         /* Check in view window if there's any attachment selected */
 853         if (!dimmed && MODEST_IS_MSG_VIEW_WINDOW (win)) {
 854                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, TRUE, NULL);
 855                 if (dimmed)
 856                         modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
 857         }
 858
 859         if (!dimmed) {
 860
 861                 dimmed = _selected_msg_sent_in_progress (win);
 862                 if (dimmed) {
 863                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
 864                 }
 865         }
 866
 867         /* cannot purge in editable drafts nor pop folders */
 868         if (!dimmed) {
 869                 dimmed = _invalid_folder_for_purge (win, rule);
 870                 if (dimmed)
 871                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
 872         }
 873
 874         /* Check if all attachments are already purged */
 875         if (!dimmed) {
 876                 dimmed = _purged_attach_selected (win, TRUE, rule);
 877         }
 878
 879         return dimmed;
 880 }
 881
 882 gboolean
 883 modest_ui_dimming_rules_on_undo (ModestWindow *win, gpointer user_data)
 884 {
 885         ModestDimmingRule *rule = NULL;
 886         gboolean dimmed = FALSE;
 887
 888         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 889         rule = MODEST_DIMMING_RULE (user_data);
 890
 891         /* Check dimmed rule */
 892         if (!dimmed && MODEST_IS_MSG_EDIT_WINDOW (win)) {
 893                 dimmed = !modest_msg_edit_window_can_undo (MODEST_MSG_EDIT_WINDOW (win));
 894         }
 895
 896         return dimmed;
 897 }
 898
 899 gboolean
 900 modest_ui_dimming_rules_on_redo (ModestWindow *win, gpointer user_data)
 901 {
 902         ModestDimmingRule *rule = NULL;
 903         gboolean dimmed = FALSE;
 904
 905         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 906         rule = MODEST_DIMMING_RULE (user_data);
 907
 908         /* Check dimmed rule */
 909         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
 910                 dimmed = !modest_msg_edit_window_can_redo (MODEST_MSG_EDIT_WINDOW (win));
 911         }
 912
 913         return dimmed;
 914 }
 915
 916 gboolean
 917 modest_ui_dimming_rules_on_cut (ModestWindow *win, gpointer user_data)
 918 {
 919         ModestDimmingRule *rule = NULL;
 920         const DimmedState *state = NULL;
 921         gboolean dimmed = FALSE;
 922
 923         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 924         rule = MODEST_DIMMING_RULE (user_data);
 925         state = modest_window_get_dimming_state (win);
 926
 927         /* Check common dimming rules */
 928         dimmed = _invalid_clipboard_selected (win, rule);
 929
 930         return dimmed;
 931 }
 932
 933 gboolean
 934 modest_ui_dimming_rules_on_copy (ModestWindow *win, gpointer user_data)
 935 {
 936         ModestDimmingRule *rule = NULL;
 937         const DimmedState *state = NULL;
 938         gboolean dimmed = FALSE;
 939
 940         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 941         rule = MODEST_DIMMING_RULE (user_data);
 942         state = modest_window_get_dimming_state (win);
 943
 944         /* Check common dimming rules */
 945         dimmed = _invalid_clipboard_selected (win, rule);
 946
 947         return dimmed;
 948 }
 949
 950 gboolean
 951 modest_ui_dimming_rules_on_set_style (ModestWindow *win, gpointer user_data)
 952 {
 953         ModestDimmingRule *rule = NULL;
 954         gboolean dimmed = FALSE;
 955
 956         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 957         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
 958         rule = MODEST_DIMMING_RULE (user_data);
 959
 960         /* Check common dimming rules */
 961         ModestMsgEditFormat format;
 962         format = modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
 963
 964         dimmed = (format != MODEST_MSG_EDIT_FORMAT_HTML);
 965         if (dimmed)
 966                 modest_dimming_rule_set_notification (rule, _("mcen_ib_item_unavailable_plaintext"));
 967
 968         if (!dimmed) {
 969                 GtkWidget *body;
 970                 body = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
 971                                                                 MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
 972
 973                 dimmed = ((body == NULL)||(!gtk_widget_is_focus (body)));
 974                 if (dimmed)
 975                         modest_dimming_rule_set_notification (rule, _("mcen_ib_move_cursor_to_message"));
 976         }
 977
 978
 979         return dimmed;
 980 }
 981
 982 gboolean
 983 modest_ui_dimming_rules_on_zoom (ModestWindow *win, gpointer user_data)
 984 {
 985         ModestDimmingRule *rule = NULL;
 986         gboolean dimmed = FALSE;
 987
 988         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 989         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
 990         rule = MODEST_DIMMING_RULE (user_data);
 991
 992         GtkWidget *body;
 993         body = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
 994                                                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
 995
 996         dimmed = ((body == NULL)||(!gtk_widget_is_focus (body)));
 997         if (dimmed)
 998                 modest_dimming_rule_set_notification (rule, _("mcen_ib_move_cursor_to_message"));
 999
1000         return dimmed;
1001 }
1002
1003 gboolean
1004 modest_ui_dimming_rules_on_editor_paste (ModestWindow *win, gpointer user_data)
1005 {
1006         ModestDimmingRule *rule = NULL;
1007         gboolean dimmed = FALSE;
1008         GtkWidget *focused = NULL;
1009
1010         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1011         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1012         rule = MODEST_DIMMING_RULE (user_data);
1013
1014         focused = gtk_container_get_focus_child ((GtkContainer *) win);
1015
1016         dimmed = MODEST_IS_ATTACHMENTS_VIEW (focused);
1017
1018         if (!dimmed) {
1019                 dimmed = GTK_IS_TOGGLE_BUTTON (focused);
1020         }
1021
1022         if (!dimmed) {
1023                 ModestEmailClipboard *e_clipboard = modest_runtime_get_email_clipboard ();
1024                 const gchar *clipboard_text = modest_msg_edit_window_get_clipboard_text (MODEST_MSG_EDIT_WINDOW (win));
1025
1026                 dimmed = modest_email_clipboard_cleared (e_clipboard) &&
1027                   ((clipboard_text == NULL) || (clipboard_text[0] == '\0'));
1028         }
1029
1030         return dimmed;
1031 }
1032
1033 gboolean
1034 modest_ui_dimming_rules_on_editor_remove_attachment (ModestWindow *win, gpointer user_data)
1035 {
1036         ModestDimmingRule *rule = NULL;
1037         gboolean dimmed = FALSE;
1038         TnyList *selected_attachments = NULL;
1039         gint n_att_selected = 0;
1040         GtkWidget *attachments_view;
1041
1042         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1043         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1044         rule = MODEST_DIMMING_RULE (user_data);
1045
1046         attachments_view = modest_msg_edit_window_get_child_widget (
1047                                                                     MODEST_MSG_EDIT_WINDOW (win),
1048                                                                     MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_ATTACHMENTS);
1049
1050         selected_attachments = modest_attachments_view_get_attachments (
1051                                                                       MODEST_ATTACHMENTS_VIEW (attachments_view));
1052         n_att_selected = tny_list_get_length (selected_attachments);
1053         g_object_unref (selected_attachments);
1054
1055         dimmed = (n_att_selected < 1);
1056
1057         return dimmed;
1058 }
1059
1060 gboolean
1061 modest_ui_dimming_rules_on_send (ModestWindow *win, gpointer user_data)
1062 {
1063         ModestDimmingRule *rule = NULL;
1064         gboolean dimmed = FALSE;
1065         GtkWidget *body_field;
1066
1067         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1068         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1069         rule = MODEST_DIMMING_RULE (user_data);
1070
1071         body_field = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1072                                                               MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1073
1074         if (!dimmed) {
1075                 GtkWidget *to_field, *cc_field, *bcc_field;
1076                 GtkTextBuffer * to_buffer, *cc_buffer, *bcc_buffer;
1077                 cc_field = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1078                                                                     MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_CC);
1079                 to_field = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1080                                                                     MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_TO);
1081                 bcc_field = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1082                                                                      MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BCC);
1083                 to_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (to_field));
1084                 cc_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (cc_field));
1085                 bcc_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (bcc_field));
1086
1087                 dimmed = ((gtk_text_buffer_get_char_count (to_buffer) +
1088                            gtk_text_buffer_get_char_count (cc_buffer) +
1089                            gtk_text_buffer_get_char_count (bcc_buffer)) == 0);
1090
1091                 if (!dimmed) {
1092                         if (modest_text_utils_no_recipient (to_buffer) &&
1093                             modest_text_utils_no_recipient (cc_buffer) &&
1094                             modest_text_utils_no_recipient (bcc_buffer))
1095                                 dimmed = TRUE;
1096                 }
1097
1098                 if (dimmed)
1099                         modest_dimming_rule_set_notification (rule, _("mcen_ib_add_recipients_first"));
1100         }
1101
1102         return dimmed;
1103 }
1104
1105 gboolean
1106 modest_ui_dimming_rules_on_view_previous (ModestWindow *win, gpointer user_data)
1107 {
1108         ModestDimmingRule *rule = NULL;
1109         gboolean dimmed = FALSE;
1110
1111         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1112         rule = MODEST_DIMMING_RULE (user_data);
1113
1114         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1115
1116         /* Check dimmed rule */
1117         dimmed = _transfer_mode_enabled (win);
1118         if (dimmed)
1119                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1120
1121         if (!dimmed) {
1122                 dimmed = modest_msg_view_window_first_message_selected (
1123                                 MODEST_MSG_VIEW_WINDOW(win));
1124                 modest_dimming_rule_set_notification (rule, NULL);
1125         }
1126
1127         return dimmed;
1128 }
1129
1130 gboolean
1131 modest_ui_dimming_rules_on_view_next (ModestWindow *win, gpointer user_data)
1132 {
1133         ModestDimmingRule *rule = NULL;
1134         gboolean dimmed = FALSE;
1135
1136         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1137         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1138         rule = MODEST_DIMMING_RULE (user_data);
1139
1140         /* Check dimmed rule */
1141         dimmed = _transfer_mode_enabled (win);
1142         if (dimmed)
1143                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1144
1145         if (!dimmed) {
1146                 dimmed = modest_msg_view_window_last_message_selected (MODEST_MSG_VIEW_WINDOW (win));
1147                 modest_dimming_rule_set_notification (rule, NULL);
1148         }
1149
1150         return dimmed;
1151 }
1152
1153
1154 gboolean
1155 modest_ui_dimming_rules_on_tools_smtp_servers (ModestWindow *win, gpointer user_data)
1156 {
1157         gboolean dimmed;
1158         ModestAccountMgr *mgr;
1159
1160         mgr = modest_runtime_get_account_mgr();
1161         dimmed = !modest_account_mgr_has_accounts(mgr, TRUE);
1162
1163         /* Dimm it if we only have metaaccounts */
1164         if (!dimmed) {
1165                 ModestProtocolRegistry *reg = modest_runtime_get_protocol_registry ();
1166                 GSList *account_names = modest_account_mgr_account_names (mgr, TRUE);
1167
1168                 if (account_names) {
1169                         ModestProtocolType store_protocol;
1170                         gboolean found = FALSE;
1171                         GSList *iter = account_names;
1172                         const gchar *tag = MODEST_PROTOCOL_REGISTRY_MULTI_MAILBOX_PROVIDER_PROTOCOLS;
1173
1174                         while (iter && !found) {
1175                                 gchar* account_name;
1176
1177                                 account_name = (gchar *) iter->data;
1178                                 store_protocol = modest_account_mgr_get_store_protocol (mgr, account_name);
1179
1180                                 if (!modest_protocol_registry_protocol_type_has_tag (reg, store_protocol, tag))
1181                                         found = TRUE;
1182                                 else
1183                                         iter = g_slist_next (iter);
1184                         }
1185                         modest_account_mgr_free_account_names (account_names);
1186                         dimmed = !found;
1187                 }
1188         }
1189
1190         return dimmed;
1191 }
1192
1193 gboolean
1194 modest_ui_dimming_rules_on_cancel_sending_all (ModestWindow *win, gpointer user_data)
1195 {
1196         /* We dim if no msg send is in progress (and then cancelling send all has no
1197          * effect */
1198         return !_msgs_send_in_progress ();
1199 }
1200
1201 gboolean
1202 modest_ui_dimming_rules_on_send_receive (ModestWindow *win, gpointer user_data)
1203 {
1204         ModestDimmingRule *rule = NULL;
1205         gboolean dimmed = FALSE;
1206         ModestAccountMgr *mgr;
1207         const gchar* account_name;
1208
1209         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1210         rule = MODEST_DIMMING_RULE (user_data);
1211         mgr = modest_runtime_get_account_mgr();
1212
1213         /* Check dimmed rule */
1214         account_name = modest_window_get_active_account (win);
1215
1216         if (account_name)
1217                 dimmed = modest_account_mgr_account_is_busy (mgr, account_name);
1218         else
1219                 dimmed = TRUE;
1220
1221         if (dimmed)
1222                 modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
1223
1224         return dimmed;
1225 }
1226
1227 gboolean
1228 modest_ui_dimming_rules_on_send_receive_all (ModestWindow *win, gpointer user_data)
1229 {
1230         ModestDimmingRule *rule = NULL;
1231         gboolean dimmed = FALSE;
1232
1233         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1234         rule = MODEST_DIMMING_RULE (user_data);
1235
1236         /* Check dimmed rule */
1237         GSList *account_names = modest_account_mgr_account_names (modest_runtime_get_account_mgr (), TRUE);
1238         if (g_slist_length (account_names) < 1)
1239                 dimmed = TRUE;
1240         if (dimmed)
1241                 modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
1242
1243         modest_account_mgr_free_account_names (account_names);
1244
1245         if (!dimmed) {
1246                 dimmed = _send_receive_in_progress (win);
1247         }
1248
1249         return dimmed;
1250 }
1251
1252 gboolean
1253 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
1254 {
1255         GSList *recipients = NULL;
1256         gboolean has_recipients_to_add;
1257
1258         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1259
1260         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1261                 TnyMsg *msg;
1262
1263                 msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
1264
1265                 /* Message is loaded asynchronously, so this could happen */
1266                 if (!msg) {
1267                         TnyHeader *header;
1268
1269                         header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW (win));
1270                         if (!header)
1271                                 return TRUE;
1272
1273                         recipients = modest_tny_msg_header_get_all_recipients_list (header);
1274                         g_object_unref (header);
1275                 } else {
1276                         recipients = modest_tny_msg_get_all_recipients_list (msg);
1277                         g_object_unref (msg);
1278                 }
1279         } else if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
1280                 /* Check if there are pending addresses to add */
1281                 return !modest_msg_edit_window_has_pending_addresses ((ModestMsgEditWindow *) win);
1282         }
1283
1284         has_recipients_to_add = FALSE;
1285
1286         if (recipients) {
1287                 GSList *node;
1288                 for (node = recipients; node != NULL; node = g_slist_next (node)) {
1289                         const gchar *recipient = (const gchar *) node->data;
1290                         if (modest_text_utils_validate_recipient (recipient, NULL)) {
1291                                 if (!modest_address_book_has_address (recipient)) {
1292                                         has_recipients_to_add = TRUE;
1293                                         break;
1294                                 }
1295                         }
1296                 }
1297                 g_slist_foreach (recipients, (GFunc) g_free, NULL);
1298                 g_slist_free (recipients);
1299         }
1300
1301         return !has_recipients_to_add;
1302 }
1303
1304 /* *********************** static utility functions ******************** */
1305
1306 static gboolean
1307 _selected_folder_is_any_of_type (ModestWindow *win,
1308                                  TnyFolderType types[],
1309                                  guint ntypes)
1310 {
1311         TnyFolderStore *folder = NULL;
1312         TnyFolderType folder_type;
1313         guint i=0;
1314         gboolean result = FALSE;
1315
1316         /*Get current folder */
1317         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
1318                 folder_type = modest_msg_view_window_get_folder_type (MODEST_MSG_VIEW_WINDOW (win));
1319                 for (i=0; i < ntypes; i++) {
1320                         result = result || folder_type == types[i];
1321                 }
1322         }
1323
1324         /* free */
1325         if (folder)
1326                 g_object_unref (folder);
1327
1328         return result;
1329 }
1330
1331 static gboolean
1332 _invalid_clipboard_selected (ModestWindow *win,
1333                              ModestDimmingRule *rule)
1334 {
1335         gboolean result = FALSE;
1336         GtkWidget *focused = NULL;
1337
1338         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1339
1340         /* Get focuesed widget */
1341         focused = gtk_container_get_focus_child ((GtkContainer *) win);
1342
1343         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
1344                 gboolean has_selection = FALSE;
1345                 if (GTK_IS_TEXT_VIEW (focused)) {
1346                         GtkTextBuffer *buffer = NULL;
1347                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
1348                         has_selection = modest_text_utils_buffer_selection_is_valid (buffer);
1349                 } else if (GTK_IS_EDITABLE (focused)) {
1350                         has_selection = gtk_editable_get_selection_bounds (GTK_EDITABLE (focused), NULL, NULL);
1351                 }
1352                 result = !has_selection;
1353         } else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1354                 if (focused) {
1355                         MODEST_DEBUG_BLOCK (g_debug ("FOCUSED %s", g_type_name (G_TYPE_FROM_INSTANCE (focused))););
1356                         if (GTK_IS_LABEL (focused) &&
1357                             !gtk_label_get_selection_bounds (GTK_LABEL (focused), NULL, NULL)) {
1358                                 result = TRUE;
1359                         } else if (GTK_IS_TEXT_VIEW (focused)) {
1360                                 GtkTextBuffer *buffer;
1361                                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
1362                                 result = !gtk_text_buffer_get_has_selection (buffer);
1363                         } else if (GTK_IS_HTML (focused)) {
1364                                 const gchar *sel;
1365                                 int len = -1;
1366                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
1367                                 result = ((sel == NULL) || (sel[0] == '\0'));
1368                         } else if (MODEST_IS_ATTACHMENTS_VIEW (focused)) {
1369                                 result = TRUE;
1370                         } else {
1371                                 GtkClipboard *clipboard;
1372                                 gchar *selection;
1373
1374                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
1375                                 /* Get clipboard selection*/
1376                                 selection = gtk_clipboard_wait_for_text (clipboard);
1377                                 /* Check dimming */
1378                                 result = (selection == NULL);
1379                                 g_free (selection);
1380                         }
1381                 } else {
1382                         result = TRUE;
1383                 }
1384                 if (result)
1385                         modest_dimming_rule_set_notification (rule, "");
1386         }
1387
1388         return result;
1389 }
1390
1391
1392 static gboolean
1393 _invalid_attach_selected (ModestWindow *win,
1394                           gboolean unique,
1395                           gboolean for_view,
1396                           gboolean for_remove,
1397                           ModestDimmingRule *rule)
1398 {
1399         TnyList *attachments;
1400         gint n_selected;
1401         gboolean nested_attachments = FALSE;
1402         gboolean selected_messages = FALSE;
1403         gboolean result = FALSE;
1404
1405         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1406
1407         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1408
1409                 /* Get selected atachments */
1410                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1411                 n_selected = tny_list_get_length (attachments);
1412
1413                 /* Check unique */
1414                 if (!result) {
1415                         if (unique)
1416                                 result = n_selected != 1;
1417                         else
1418
1419                                 result = n_selected < 1;
1420                 }
1421
1422                 /* Check attached type (view operation not required) */
1423                 if (!result && !for_view)  {
1424                         TnyIterator *iter;
1425                         iter = tny_list_create_iterator (attachments);
1426                         while (!tny_iterator_is_done (iter) && !result) {
1427                                 gboolean not_selectable = FALSE;
1428                                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
1429                                 TnyList *nested_list = tny_simple_list_new ();
1430                                 tny_mime_part_get_parts (mime_part, nested_list);
1431
1432                                 if (!for_remove && modest_tny_mime_part_is_msg (mime_part)) {
1433                                         TnyMsg *window_msg;
1434                                         window_msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
1435                                         if ((TnyMimePart *) window_msg != mime_part) {
1436                                                 selected_messages = TRUE;
1437                                                 not_selectable = TRUE;
1438                                         }
1439                                         g_object_unref (window_msg);
1440                                 }
1441                                 if (!for_remove && tny_list_get_length (nested_list) > 0) {
1442                                         nested_attachments = TRUE;
1443                                         not_selectable = TRUE;
1444                                 }
1445                                 if (not_selectable)
1446                                         n_selected --;
1447                                 g_object_unref (nested_list);
1448                                 g_object_unref (mime_part);
1449                                 tny_iterator_next (iter);
1450                         }
1451                         g_object_unref (iter);
1452                 }
1453
1454                 /* No valid attachment available */
1455                 if (n_selected == 0)
1456                         result = TRUE;
1457
1458                 /* Set notifications */
1459                 if (result && rule != NULL) {
1460                         if (selected_messages) {
1461                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_save_attach_mail"));
1462                         } else if (nested_attachments) {
1463                                 modest_dimming_rule_set_notification (rule, _("FIXME:unable to save attachments with nested elements"));
1464                         } else if (n_selected == 0) {
1465                                 modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1466                         } else if (unique) {
1467                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_display_more"));
1468                         }
1469                 }
1470
1471                 /* Free */
1472                 g_object_unref (attachments);
1473         }
1474
1475         return result;
1476 }
1477
1478 static gboolean
1479 _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule)
1480 {
1481         TnyList *attachments = NULL;
1482         TnyIterator *iter;
1483         gint purged = 0;
1484         gint n_attachments = 0;
1485         gboolean result = FALSE;
1486
1487         /* This should check if _all_ the attachments are already purged. If only some
1488          * of them are purged, then it does not cause dim as there's a confirmation dialog
1489          * for removing only local attachments */
1490
1491         /* Get selected atachments */
1492         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1493                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1494         }
1495
1496         if (attachments == NULL)
1497                 return FALSE;
1498
1499         if (tny_list_get_length (attachments) == 0) {
1500                 g_object_unref (attachments);
1501                 return FALSE;
1502         }
1503
1504         iter = tny_list_create_iterator (attachments);
1505         while (!tny_iterator_is_done (iter)) {
1506                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
1507                 if (tny_mime_part_is_purged (mime_part)) {
1508                         purged++;
1509                 }
1510                 n_attachments++;
1511                 g_object_unref (mime_part);
1512                 tny_iterator_next (iter);
1513         }
1514         g_object_unref (iter);
1515
1516         /* Free */
1517         g_object_unref (attachments);
1518
1519         if (all)
1520                 result = (purged == n_attachments);
1521         else
1522                 result = (purged > 0);
1523
1524         /* This string no longer exists, refer to NB#75415 for more info
1525         if (result && (rule != NULL))
1526                 modest_dimming_rule_set_notification (rule, _("mail_ib_attachment_already_purged"));
1527         */
1528
1529         return result;
1530 }
1531
1532 static gboolean
1533 _msg_download_in_progress (ModestWindow *win)
1534 {
1535         gboolean result = FALSE;
1536
1537         g_return_val_if_fail (MODEST_IS_WINDOW (win), FALSE);
1538
1539         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1540                 result = modest_msg_view_window_toolbar_on_transfer_mode (MODEST_MSG_VIEW_WINDOW(win));
1541         }
1542
1543         return result;
1544 }
1545
1546 static void
1547 fill_list_of_caches (gpointer key, gpointer value, gpointer userdata)
1548 {
1549         GSList **send_queues = (GSList **) userdata;
1550         *send_queues = g_slist_prepend (*send_queues, value);
1551 }
1552
1553 static gboolean
1554 _selected_msg_sent_in_progress (ModestWindow *win)
1555 {
1556         const DimmedState *state = modest_window_get_dimming_state (win);
1557         return (state) ? state->sent_in_progress : TRUE;
1558 }
1559
1560
1561 static gboolean
1562 _invalid_folder_for_purge (ModestWindow *win,
1563                            ModestDimmingRule *rule)
1564 {
1565         TnyFolder *folder = NULL;
1566         TnyAccount *account = NULL;
1567         gboolean result = FALSE;
1568
1569         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1570
1571                 /* Get folder and account of message */
1572                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
1573                 g_return_val_if_fail(msg != NULL, TRUE);
1574                 folder = tny_msg_get_folder (msg);
1575                 g_object_unref (msg);
1576                 if (folder == NULL) {
1577                         result = TRUE;
1578                         goto frees;
1579                 }
1580         } else {
1581                 g_return_val_if_reached (FALSE);
1582         }
1583         account = modest_tny_folder_get_account (folder);
1584         if (account == NULL) goto frees;
1585
1586         /* Check account */
1587         if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (account))) {
1588                 TnyFolderType types[2];
1589                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
1590                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
1591
1592                 if (_selected_folder_is_any_of_type (win, types, 2)) {
1593                         result = TRUE;
1594                 }
1595         } else {
1596                 ModestProtocolType protocol_type = modest_tny_account_get_protocol_type (TNY_ACCOUNT (account));
1597                 /* If it's a remote folder then dim */
1598                 if (modest_protocol_registry_protocol_type_has_tag (modest_runtime_get_protocol_registry (),
1599                                                                     protocol_type,
1600                                                                     MODEST_PROTOCOL_REGISTRY_REMOTE_STORE_PROTOCOLS)) {
1601                         result = TRUE;
1602                 }
1603         }
1604
1605 frees:
1606         if (folder != NULL)
1607                 g_object_unref (folder);
1608         if (account != NULL)
1609                 g_object_unref (account);
1610
1611         return result;
1612 }
1613
1614 static gboolean
1615 _transfer_mode_enabled (ModestWindow *win)
1616 {
1617         gboolean result = FALSE;
1618
1619         /* Check dimming */
1620         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
1621                 result = modest_msg_view_window_transfer_mode_enabled (MODEST_MSG_VIEW_WINDOW (win));
1622         } else if (MODEST_IS_FOLDER_WINDOW (win)) {
1623                 result = modest_folder_window_transfer_mode_enabled (MODEST_FOLDER_WINDOW (win));
1624         } else if (MODEST_IS_HEADER_WINDOW (win)) {
1625                 result = modest_header_window_transfer_mode_enabled (MODEST_HEADER_WINDOW (win));
1626         } else {
1627                 g_warning("_transfer_mode_enabled called with wrong window type");
1628         }
1629
1630         return result;
1631 }
1632
1633 static gboolean
1634 _all_msgs_in_sending_status (ModestHeaderView *header_view)
1635 {
1636         GtkTreeModel *model;
1637         GtkTreeIter iter;
1638         gboolean all_sending = TRUE;
1639
1640         model = gtk_tree_view_get_model (GTK_TREE_VIEW (header_view));
1641         if (gtk_tree_model_get_iter_first (model, &iter)) {
1642                 do {
1643                         TnyHeader *header;
1644
1645                         gtk_tree_model_get (model, &iter,
1646                                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
1647                                             &header,
1648                                             -1);
1649
1650                         if (header) {
1651                                 if (modest_tny_all_send_queues_get_msg_status (header) !=
1652                                     MODEST_TNY_SEND_QUEUE_SENDING)
1653                                         all_sending = FALSE;
1654                                 g_object_unref (header);
1655                         }
1656
1657                 } while (all_sending && gtk_tree_model_iter_next (model, &iter));
1658         }
1659         return all_sending;
1660 }
1661
1662 gboolean
1663 modest_ui_dimming_rules_on_save_to_drafts (ModestWindow *win,
1664                                            gpointer user_data)
1665 {
1666         ModestDimmingRule *rule = NULL;
1667
1668         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
1669         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1670         rule = MODEST_DIMMING_RULE (user_data);
1671
1672         /* Check dimmed rule */
1673         return !modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (win));
1674 }
1675
1676 gboolean
1677 modest_ui_dimming_rules_on_insert_image (ModestWindow *win,
1678                                          gpointer user_data)
1679 {
1680         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
1681
1682         ModestMsgEditFormat format =
1683           modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
1684
1685         return (format != MODEST_MSG_EDIT_FORMAT_HTML);
1686 }
1687
1688 static gboolean
1689 _send_receive_in_progress (ModestWindow *win)
1690 {
1691         ModestMailOperationQueue *queue;
1692         GSList *op_list, *node;
1693         gboolean found_send_receive;
1694
1695         queue = modest_runtime_get_mail_operation_queue ();
1696         op_list = modest_mail_operation_queue_get_by_source (queue, G_OBJECT (win));
1697
1698         found_send_receive = FALSE;
1699         for (node = op_list; node != NULL; node = g_slist_next (node)) {
1700                 ModestMailOperation *op;
1701
1702                 op = (ModestMailOperation *) node->data;
1703                 if (modest_mail_operation_get_type_operation (op) == MODEST_MAIL_OPERATION_TYPE_SEND_AND_RECEIVE) {
1704                         found_send_receive = TRUE;
1705                         break;
1706                 }
1707         }
1708
1709         if (op_list) {
1710                 g_slist_foreach (op_list, (GFunc) g_object_unref, NULL);
1711                 g_slist_free (op_list);
1712         }
1713
1714         return found_send_receive;
1715 }
1716
1717 static gboolean
1718 _msgs_send_in_progress (void)
1719 {
1720         ModestCacheMgr *cache_mgr;
1721         GHashTable *send_queue_cache;
1722         ModestTnySendQueue *send_queue;
1723         GSList *send_queues = NULL, *node = NULL;
1724         gboolean found = FALSE;
1725
1726         cache_mgr = modest_runtime_get_cache_mgr ();
1727         send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
1728                                                        MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
1729
1730         g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
1731
1732         for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
1733                 send_queue = MODEST_TNY_SEND_QUEUE (node->data);
1734
1735                 /* Check if msg uid is being processed inside send queue */
1736                 if (modest_tny_send_queue_sending_in_progress (send_queue)) {
1737                         found = TRUE;
1738                         break;
1739                 }
1740         }
1741
1742         g_slist_free (send_queues);
1743
1744         return found;
1745 }
1746
1747 gboolean
1748 modest_ui_dimming_rules_on_header_window_move_to (ModestWindow *win, gpointer user_data)
1749 {
1750         ModestDimmingRule *rule = NULL;
1751         gboolean dimmed = FALSE;
1752
1753         g_return_val_if_fail (MODEST_IS_HEADER_WINDOW(win), FALSE);
1754         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1755         rule = MODEST_DIMMING_RULE (user_data);
1756
1757         /* Check dimmed rule */
1758         dimmed = _transfer_mode_enabled (win);
1759         if (dimmed)
1760                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1761
1762         if (!dimmed)
1763                 dimmed = _forbid_outgoing_xfers (win);
1764
1765         if (!dimmed) {
1766                 GtkWidget *header_view;
1767                 TnyFolder *folder;
1768
1769                 header_view = GTK_WIDGET (modest_header_window_get_header_view (MODEST_HEADER_WINDOW (win)));
1770                 folder = modest_header_view_get_folder (MODEST_HEADER_VIEW (header_view));
1771                 if (folder) {
1772                         dimmed = (tny_folder_get_all_count (TNY_FOLDER (folder)) == 0) ||
1773                                 modest_header_view_is_empty (MODEST_HEADER_VIEW (header_view));
1774
1775                         if (!dimmed &&
1776                             (tny_folder_get_folder_type (TNY_FOLDER (folder)) == TNY_FOLDER_TYPE_OUTBOX)) {
1777                                 dimmed = _all_msgs_in_sending_status (MODEST_HEADER_VIEW (header_view));;
1778                         }
1779                         g_object_unref (folder);
1780                 }
1781         }
1782
1783         return dimmed;
1784 }
1785
1786 gboolean
1787 modest_ui_dimming_rules_on_folder_window_move_to (ModestWindow *win, gpointer user_data)
1788 {
1789         ModestDimmingRule *rule = NULL;
1790         gboolean dimmed = FALSE;
1791
1792         g_return_val_if_fail (MODEST_IS_FOLDER_WINDOW(win), FALSE);
1793         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1794         rule = MODEST_DIMMING_RULE (user_data);
1795
1796         /* Check dimmed rule */
1797         dimmed = _transfer_mode_enabled (win);
1798         if (dimmed)
1799                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1800
1801         if (!dimmed)
1802                 dimmed = _forbid_outgoing_xfers (win);
1803
1804         if (!dimmed && MODEST_IS_FOLDER_WINDOW (win)) {
1805                 ModestFolderView *folder_view;
1806                 folder_view = modest_folder_window_get_folder_view (MODEST_FOLDER_WINDOW (win));
1807                 dimmed = !modest_folder_view_any_folder_fulfils_rules (folder_view,
1808                                                                        MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE);
1809         }
1810
1811         if (!dimmed) {
1812                 dimmed = _transfer_mode_enabled (win);
1813                 if (dimmed)
1814                         modest_dimming_rule_set_notification (rule, "");
1815         }
1816
1817         return dimmed;
1818 }
1819
1820 gboolean
1821 modest_ui_dimming_rules_on_folder_window_delete (ModestWindow *win, gpointer user_data)
1822 {
1823         ModestDimmingRule *rule = NULL;
1824         gboolean dimmed = FALSE;
1825
1826         g_return_val_if_fail (MODEST_IS_FOLDER_WINDOW(win), FALSE);
1827         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1828         rule = MODEST_DIMMING_RULE (user_data);
1829
1830         /* Check dimmed rule */
1831         dimmed = _transfer_mode_enabled (win);
1832         if (dimmed)
1833                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1834
1835         if (MODEST_IS_FOLDER_WINDOW (win)) {
1836                 ModestFolderView *folder_view;
1837                 folder_view = modest_folder_window_get_folder_view (MODEST_FOLDER_WINDOW (win));
1838                 dimmed = !modest_folder_view_any_folder_fulfils_rules (folder_view,
1839                                                                        MODEST_FOLDER_RULES_FOLDER_NON_DELETABLE);
1840         }
1841
1842         if (!dimmed) {
1843                 dimmed = _transfer_mode_enabled (win);
1844                 if (dimmed)
1845                         modest_dimming_rule_set_notification (rule, "");
1846         }
1847
1848         return dimmed;
1849 }
1850
1851 gboolean
1852 modest_ui_dimming_rules_on_edit_accounts (ModestWindow *win, gpointer user_data)
1853 {
1854         return !modest_account_mgr_has_accounts (modest_runtime_get_account_mgr (), TRUE);
1855 }