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 #ifdef MODEST_TOOLKIT_HILDON2
  55 #include <modest-header-window.h>
  56 #include <modest-folder-window.h>
  57 #endif
  58
  59
  60 static gboolean _folder_is_any_of_type (TnyFolder *folder, TnyFolderType types[], guint ntypes);
  61 static gboolean _invalid_msg_selected (ModestMainWindow *win, gboolean unique, ModestDimmingRule *rule);
  62 static gboolean _invalid_attach_selected (ModestWindow *win,
  63                                           gboolean unique, gboolean for_view, gboolean for_remove,
  64                                           ModestDimmingRule *rule);
  65 static gboolean _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule);
  66 static gboolean _clipboard_is_empty (ModestWindow *win);
  67 static gboolean _invalid_clipboard_selected (ModestWindow *win, ModestDimmingRule *rule);
  68 static gboolean _selected_folder_not_writeable (ModestMainWindow *win, gboolean for_paste);
  69 static gboolean _selected_folder_not_moveable (ModestMainWindow *win);
  70 static gboolean _selected_folder_not_renameable (ModestMainWindow *win);
  71 static gboolean _selected_folder_not_deletable (ModestMainWindow *win);
  72 static gboolean _selected_folder_is_any_of_type (ModestWindow *win, TnyFolderType types[], guint ntypes);
  73 static gboolean _selected_folder_is_root_or_inbox (ModestMainWindow *win);
  74 static gboolean _selected_folder_is_root (ModestMainWindow *win);
  75 static gboolean _header_view_is_all_selected (ModestMainWindow *win);
  76 static gboolean _selected_folder_is_empty (ModestMainWindow *win);
  77 static gboolean _folder_view_has_focus (ModestWindow *win);
  78 static gboolean _selected_folder_is_same_as_source (ModestWindow *win);
  79 static gboolean _msg_download_in_progress (ModestWindow *win);
  80 static gboolean _msg_download_completed (ModestMainWindow *win);
  81 static gboolean _selected_msg_sent_in_progress (ModestWindow *win);
  82 static gboolean _invalid_folder_for_purge (ModestWindow *win, ModestDimmingRule *rule);
  83 static gboolean _transfer_mode_enabled (ModestWindow *win);
  84 static gboolean _selected_folder_has_subfolder_with_same_name (ModestWindow *win);
  85 static void fill_list_of_caches (gpointer key, gpointer value, gpointer userdata);
  86 static gboolean _send_receive_in_progress (ModestWindow *win);
  87 static gboolean _msgs_send_in_progress (void);
  88 static gboolean _all_msgs_in_sending_status (ModestHeaderView *header_view) G_GNUC_UNUSED;
  89 static gboolean _forbid_outgoing_xfers (ModestWindow *window);
  90
  91 static DimmedState *
  92 _define_main_window_dimming_state (ModestMainWindow *window)
  93 {
  94         DimmedState *state = NULL;
  95         GtkWidget *focused_widget = NULL;
  96         GtkWidget *header_view = NULL;
  97         GtkTreeModel *model = NULL;
  98         TnyList *selected_headers = NULL;
  99         TnyIterator *iter = NULL;
 100         TnyHeader *header = NULL;
 101         ModestCacheMgr *cache_mgr = NULL;
 102         GHashTable *send_queue_cache = NULL;
 103         ModestTnySendQueue *send_queue = NULL;
 104         GSList *send_queues = NULL, *node = NULL;
 105         ModestWindowMgr *mgr = NULL;
 106         gboolean found = FALSE;
 107         gchar *msg_uid = NULL;
 108         TnyHeaderFlags flags;
 109         gboolean all_deleted = TRUE;
 110         gboolean all_seen = TRUE;
 111         gboolean all_cached = TRUE;
 112         gboolean all_has_attach = TRUE;
 113         TnyFolder *folder = NULL;
 114
 115         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(window), NULL);
 116
 117         /* Init state */
 118         state = g_slice_new0 (DimmedState);
 119         state->n_selected = 0;
 120         state->already_opened_msg = 0;
 121         state->any_marked_as_deleted = FALSE;
 122         state->all_marked_as_deleted = FALSE;
 123         state->any_marked_as_seen = FALSE;
 124         state->all_marked_as_seen = FALSE;
 125         state->any_marked_as_cached = FALSE;
 126         state->all_marked_as_cached = FALSE;
 127         state->any_has_attachments = FALSE;
 128         state->all_has_attachments = FALSE;
 129         state->sent_in_progress = FALSE;
 130         state->all_selected = FALSE;
 131
 132         /* Get focused widget */
 133         focused_widget = gtk_window_get_focus (GTK_WINDOW (window));
 134         if (MODEST_IS_FOLDER_VIEW (focused_widget)) {
 135                 state->n_selected++;
 136                 return state;
 137         } else if (MODEST_IS_HEADER_VIEW (focused_widget)) {
 138                 header_view = focused_widget;
 139         } else {
 140                 header_view = modest_main_window_get_child_widget (window, MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
 141         }
 142
 143         /* Get header view and selected headers */
 144         selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
 145         if (!selected_headers)
 146                 return state;
 147
 148         /* Examine selected headers */
 149         iter = tny_list_create_iterator (selected_headers);
 150         while (!tny_iterator_is_done (iter)) {
 151                 header = TNY_HEADER (tny_iterator_get_current (iter));
 152                 flags = tny_header_get_flags (header);
 153
 154                 /* No selected */
 155                 state->n_selected++;
 156
 157                 /* Already opened */
 158                 mgr = modest_runtime_get_window_mgr ();
 159                 if (modest_window_mgr_find_registered_header (mgr, header, NULL))
 160                         state->already_opened_msg++;
 161
 162
 163                 /* Mark as deleted */
 164                 all_deleted = all_deleted && (flags & TNY_HEADER_FLAG_DELETED);
 165                 state->all_marked_as_deleted = all_deleted;
 166                 if (!state->any_marked_as_deleted)
 167                         state->any_marked_as_deleted = flags & TNY_HEADER_FLAG_DELETED;
 168
 169                 /* Mark as seen */
 170                 all_seen = all_seen && (flags & TNY_HEADER_FLAG_SEEN);
 171                 state->all_marked_as_seen = all_seen;
 172                 if (!state->any_marked_as_seen)
 173                         state->any_marked_as_seen = flags & TNY_HEADER_FLAG_SEEN;
 174
 175                 /* Mark as cached */
 176                 all_cached = all_cached && (flags & TNY_HEADER_FLAG_CACHED);
 177                 state->all_marked_as_cached = all_cached;
 178                 if (!state->any_marked_as_cached)
 179                         state->any_marked_as_cached = flags & TNY_HEADER_FLAG_CACHED;
 180
 181                 /* Mark has_attachments */
 182                 all_has_attach = all_has_attach && (flags & TNY_HEADER_FLAG_ATTACHMENTS);
 183                 state->all_has_attachments = all_has_attach;
 184                 if (!state->any_has_attachments)
 185                         state->any_has_attachments = flags & TNY_HEADER_FLAG_ATTACHMENTS;
 186
 187                 /* sent in progress */
 188                 folder = tny_header_get_folder (header);
 189                 if (folder) {
 190                         if (modest_tny_folder_guess_folder_type (folder) == TNY_FOLDER_TYPE_OUTBOX) {
 191                                 msg_uid = modest_tny_send_queue_get_msg_id (header);
 192                                 if (!state->sent_in_progress) {
 193                                         cache_mgr = modest_runtime_get_cache_mgr ();
 194                                         send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
 195                                                                                        MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
 196
 197                                         g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
 198
 199                                         for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
 200                                                 send_queue = MODEST_TNY_SEND_QUEUE (node->data);
 201
 202                                                 /* Check if msg uid is being processed inside send queue */
 203                                                 found = modest_tny_send_queue_msg_is_being_sent (send_queue, msg_uid);
 204                                         }
 205                                         state->sent_in_progress = found;
 206                                 }
 207                         }
 208                         g_object_unref (folder);
 209                 }
 210                 tny_iterator_next (iter);
 211                 g_object_unref (header);
 212         }
 213
 214         /* check if all the headers are selected or not */
 215         model = gtk_tree_view_get_model(GTK_TREE_VIEW(header_view));
 216         if (model != NULL){
 217                 gint count;
 218                 count = gtk_tree_model_iter_n_children(model, NULL);
 219                 if(state->n_selected == count)
 220                         state->all_selected = TRUE;
 221         }
 222
 223         /* Free */
 224         g_free(msg_uid);
 225         g_object_unref(selected_headers);
 226         g_object_unref(iter);
 227         g_slist_free (send_queues);
 228
 229         return state;
 230 }
 231
 232 static DimmedState *
 233 _define_msg_view_window_dimming_state (ModestMsgViewWindow *window)
 234 {
 235         DimmedState *state = NULL;
 236         TnyHeader *header = NULL;
 237         ModestCacheMgr *cache_mgr = NULL;
 238         GHashTable *send_queue_cache = NULL;
 239         ModestTnySendQueue *send_queue = NULL;
 240         GSList *send_queues = NULL, *node = NULL;
 241         gboolean found = FALSE;
 242         gchar *msg_uid = NULL;
 243         TnyHeaderFlags flags;
 244         gboolean all_deleted = TRUE;
 245         gboolean all_seen = TRUE;
 246         gboolean all_cached = TRUE;
 247         gboolean all_has_attach = TRUE;
 248
 249         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(window), NULL);
 250
 251         /* Init state */
 252         state = g_slice_new0 (DimmedState);
 253         state->n_selected = 0;
 254         state->already_opened_msg = 0;
 255         state->any_marked_as_deleted = FALSE;
 256         state->all_marked_as_deleted = FALSE;
 257         state->any_marked_as_seen = FALSE;
 258         state->all_marked_as_seen = FALSE;
 259         state->any_marked_as_cached = FALSE;
 260         state->all_marked_as_cached = FALSE;
 261         state->any_has_attachments = FALSE;
 262         state->all_has_attachments = FALSE;
 263         state->sent_in_progress = FALSE;
 264
 265         header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW(window));
 266         if (header == NULL)
 267                 return state;
 268         g_return_val_if_fail (TNY_IS_HEADER(header), state);
 269         flags = tny_header_get_flags (header);
 270
 271         /* Selected */
 272         state->n_selected++;
 273
 274         /* Mark as deleted */
 275         all_deleted = all_deleted && (flags & TNY_HEADER_FLAG_DELETED);
 276         state->all_marked_as_deleted = all_deleted;
 277         if (!state->any_marked_as_deleted)
 278                 state->any_marked_as_deleted = flags & TNY_HEADER_FLAG_DELETED;
 279
 280         /* Mark as seen */
 281         all_seen = all_seen && (flags & TNY_HEADER_FLAG_SEEN);
 282         state->all_marked_as_seen = all_seen;
 283         if (!state->any_marked_as_seen)
 284                 state->any_marked_as_seen = flags & TNY_HEADER_FLAG_SEEN;
 285
 286         /* Mark as cached */
 287         all_cached = all_cached && (flags & TNY_HEADER_FLAG_CACHED);
 288         state->all_marked_as_cached = all_cached;
 289         if (!state->any_marked_as_cached)
 290                 state->any_marked_as_cached = flags & TNY_HEADER_FLAG_CACHED;
 291
 292         /* Mark has_attachments */
 293         all_has_attach = all_has_attach && (flags & TNY_HEADER_FLAG_ATTACHMENTS);
 294         state->all_has_attachments = all_has_attach;
 295         if (!state->any_has_attachments)
 296                 state->any_has_attachments = (flags & TNY_HEADER_FLAG_ATTACHMENTS)?1:0;
 297
 298         /* sent in progress */
 299         msg_uid = modest_tny_send_queue_get_msg_id (header);
 300         if (!state->sent_in_progress) {
 301                 cache_mgr = modest_runtime_get_cache_mgr ();
 302                 send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
 303                                                                MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
 304
 305                 g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
 306
 307                 for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
 308                         send_queue = MODEST_TNY_SEND_QUEUE (node->data);
 309
 310                         /* Check if msg uid is being processed inside send queue */
 311                         found = modest_tny_send_queue_msg_is_being_sent (send_queue, msg_uid);
 312                 }
 313                 state->sent_in_progress = found;
 314         }
 315
 316         /* Free */
 317         g_free(msg_uid);
 318         g_object_unref (header);
 319         g_slist_free (send_queues);
 320
 321         return state;
 322 }
 323
 324
 325 DimmedState *
 326 modest_ui_dimming_rules_define_dimming_state (ModestWindow *window)
 327 {
 328         DimmedState *state = NULL;
 329
 330         g_return_val_if_fail (MODEST_IS_WINDOW(window), NULL);
 331
 332         if (MODEST_IS_MAIN_WINDOW (window))
 333                 state = _define_main_window_dimming_state (MODEST_MAIN_WINDOW(window));
 334         else if (MODEST_IS_MSG_VIEW_WINDOW (window)) {
 335                 state = _define_msg_view_window_dimming_state (MODEST_MSG_VIEW_WINDOW(window));
 336         }
 337
 338         return state;
 339 }
 340
 341 gboolean
 342 modest_ui_dimming_rules_on_new_msg (ModestWindow *win, gpointer user_data)
 343 {
 344         ModestDimmingRule *rule = NULL;
 345         gboolean dimmed = FALSE;
 346
 347         g_return_val_if_fail (MODEST_IS_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         /* Check dimmed rule */
 352         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
 353 #ifndef MODEST_TOOLKIT_HILDON2
 354                 dimmed = _msg_download_in_progress (win);
 355                 if (dimmed)
 356                         modest_dimming_rule_set_notification (rule, "");
 357 #endif
 358         } else if (MODEST_IS_MAIN_WINDOW(win)) {
 359                 dimmed = !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
 360                                                           TRUE);
 361                 if (dimmed)
 362                         modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
 363         }
 364
 365         return dimmed;
 366 }
 367
 368 gboolean
 369 modest_ui_dimming_rules_on_new_folder (ModestWindow *win, gpointer user_data)
 370 {
 371         ModestDimmingRule *rule = NULL;
 372         GtkWidget *folder_view = NULL;
 373         TnyFolderStore *parent_folder = NULL;
 374         gboolean dimmed = FALSE;
 375
 376         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 377         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 378         rule = MODEST_DIMMING_RULE (user_data);
 379
 380         dimmed = _transfer_mode_enabled (win);
 381         if (dimmed) {
 382                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 383                 return dimmed;
 384         }
 385
 386         /* Get selected folder as parent of new folder to create */
 387         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 388                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 389         if (!folder_view) /* folder view may not have been created yet */
 390                 return TRUE;
 391
 392         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
 393         if (!parent_folder)
 394                 return TRUE;
 395
 396         if (TNY_IS_ACCOUNT (parent_folder)) {
 397                 /* If it's the local account then do not dim */
 398                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
 399                         dimmed = FALSE;
 400                 } else {
 401                         ModestProtocolType protocol_type = modest_tny_account_get_protocol_type (TNY_ACCOUNT (parent_folder));
 402                         if (protocol_type != MODEST_PROTOCOL_REGISTRY_TYPE_INVALID) {
 403                                 ModestProtocolRegistry *protocol_registry;
 404
 405                                 protocol_registry = modest_runtime_get_protocol_registry ();
 406                                 /* If account does not support folders (pop) then dim */
 407                                 dimmed = (!modest_protocol_registry_protocol_type_has_tag (protocol_registry, protocol_type,
 408                                                                                            MODEST_PROTOCOL_REGISTRY_STORE_HAS_FOLDERS));
 409                                 if (dimmed)
 410                                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 411                         }
 412                 }
 413         } else {
 414                 TnyFolderType types[3];
 415
 416                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 417                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 418                 types[2] = TNY_FOLDER_TYPE_SENT;
 419
 420                 /* Apply folder rules */
 421                 if (!dimmed) {
 422                         dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win), FALSE);
 423                         if (dimmed)
 424                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 425                 }
 426                 if (!dimmed) {
 427                         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 428                         if (dimmed)
 429                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 430                 }
 431         }
 432
 433         /* if not the folder is selected then dim */
 434         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 435                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 436         if (folder_view && !gtk_widget_is_focus (folder_view))
 437                 dimmed = TRUE;
 438
 439         g_object_unref (parent_folder);
 440
 441         return dimmed;
 442 }
 443
 444 gboolean
 445 modest_ui_dimming_rules_on_delete (ModestWindow *win, gpointer user_data)
 446 {
 447         ModestDimmingRule *rule = NULL;
 448         GtkWidget *folder_view = NULL;
 449         GtkWidget *header_view = NULL;
 450         gboolean dimmed = FALSE;
 451
 452         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 453         rule = MODEST_DIMMING_RULE (user_data);
 454
 455         if (MODEST_IS_MAIN_WINDOW (win)) {
 456                 /* Get the folder view */
 457                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 458                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 459
 460                 /* Get header view */
 461                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 462                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
 463
 464                 if (header_view && gtk_widget_is_focus (header_view))
 465                         dimmed = modest_ui_dimming_rules_on_delete_msg (win, rule);
 466
 467                 if (folder_view && gtk_widget_is_focus (folder_view))
 468                         dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 469
 470                 if (header_view && folder_view &&
 471                     !gtk_widget_is_focus (header_view) &&
 472                     !gtk_widget_is_focus (folder_view)) {
 473                         dimmed = TRUE;
 474                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_nothing_to_delete"));
 475                 }
 476
 477 #ifdef MODEST_TOOLKIT_HILDON2
 478         } else if (MODEST_IS_FOLDER_WINDOW (win)) {
 479                 dimmed = modest_ui_dimming_rules_on_folder_window_delete (win, user_data);
 480         } else if (MODEST_IS_HEADER_WINDOW (win)) {
 481
 482                 if (!dimmed)
 483                         dimmed = _transfer_mode_enabled (win);
 484
 485                 if (dimmed)
 486                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 487
 488                 if (!dimmed) {
 489                         GtkWidget *header_view;
 490                         TnyFolder *folder;
 491
 492                         header_view = GTK_WIDGET (modest_header_window_get_header_view (MODEST_HEADER_WINDOW (win)));
 493                         folder = modest_header_view_get_folder (MODEST_HEADER_VIEW (header_view));
 494                         if (folder) {
 495                                 dimmed = (tny_folder_get_all_count (TNY_FOLDER (folder)) == 0) ||
 496                                         modest_header_view_is_empty (MODEST_HEADER_VIEW (header_view));
 497
 498                                 if (!dimmed &&
 499                                     (tny_folder_get_folder_type (TNY_FOLDER (folder)) == TNY_FOLDER_TYPE_OUTBOX)) {
 500                                         dimmed = _all_msgs_in_sending_status (MODEST_HEADER_VIEW (header_view));;
 501                                 }
 502                                 g_object_unref (folder);
 503                         }
 504                 }
 505
 506 #endif
 507         } else {
 508                 dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 509         }
 510
 511         return dimmed;
 512 }
 513
 514
 515
 516 gboolean
 517 modest_ui_dimming_rules_on_delete_folder (ModestWindow *win, gpointer user_data)
 518 {
 519         ModestDimmingRule *rule = NULL;
 520         TnyFolderType types[6];
 521         gboolean dimmed = FALSE;
 522
 523         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 524         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 525         rule = MODEST_DIMMING_RULE (user_data);
 526
 527         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 528         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 529         types[2] = TNY_FOLDER_TYPE_SENT;
 530         types[3] = TNY_FOLDER_TYPE_INBOX;
 531         types[4] = TNY_FOLDER_TYPE_ROOT;
 532         types[5] = TNY_FOLDER_TYPE_ARCHIVE;
 533
 534
 535         /* Check dimmed rule */
 536         dimmed = _selected_folder_not_deletable (MODEST_MAIN_WINDOW(win));
 537         if (dimmed)
 538                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 539         if (!dimmed) {
 540                 dimmed = _selected_folder_is_any_of_type (win, types, 6);
 541                 if (dimmed)
 542                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 543         }
 544         if (!dimmed) {
 545                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 546                 if (dimmed)
 547                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 548         }
 549         if (!dimmed) {
 550                 dimmed = _transfer_mode_enabled (win);
 551                 if (dimmed)
 552                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 553         }
 554
 555         return dimmed;
 556 }
 557
 558 gboolean
 559 modest_ui_dimming_rules_on_sort (ModestWindow *win, gpointer user_data)
 560 {
 561         ModestDimmingRule *rule = NULL;
 562         gboolean dimmed = FALSE;
 563
 564 #ifdef MODEST_TOOLKIT_HILDON2
 565         if (MODEST_IS_HEADER_WINDOW (win)) {
 566                 return FALSE;
 567         }
 568 #endif
 569
 570         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 571         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 572         rule = MODEST_DIMMING_RULE (user_data);
 573
 574         /* Check dimmed rule */
 575         dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
 576
 577         if (!dimmed)
 578                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 579
 580         return dimmed;
 581
 582 }
 583
 584 gboolean
 585 modest_ui_dimming_rules_on_rename_folder (ModestWindow *win, gpointer user_data)
 586 {
 587         ModestDimmingRule *rule = NULL;
 588         TnyFolderType types[4];
 589         gboolean dimmed = FALSE;
 590
 591         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 592         rule = MODEST_DIMMING_RULE (user_data);
 593
 594         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 595         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 596         types[2] = TNY_FOLDER_TYPE_SENT;
 597         types[3] = TNY_FOLDER_TYPE_ARCHIVE;
 598
 599         /* Check dimmed rule */
 600         if (MODEST_IS_MAIN_WINDOW (win)) {
 601                 dimmed = _selected_folder_not_renameable (MODEST_MAIN_WINDOW(win));
 602                 if (dimmed)
 603                         modest_dimming_rule_set_notification (rule, "");
 604                 if (!dimmed) {
 605                         dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 606                         if (dimmed)
 607                                 modest_dimming_rule_set_notification (rule, "");
 608                 }
 609         }
 610
 611 #ifdef MODEST_TOOLKIT_HILDON2
 612         if (MODEST_IS_FOLDER_WINDOW (win)) {
 613                 ModestFolderView *folder_view;
 614                 folder_view = modest_folder_window_get_folder_view (MODEST_FOLDER_WINDOW (win));
 615                 dimmed = !modest_folder_view_any_folder_fulfils_rules (folder_view,
 616                                                                        MODEST_FOLDER_RULES_FOLDER_NON_RENAMEABLE);
 617         }
 618 #endif
 619
 620         if (!dimmed) {
 621                 dimmed = _selected_folder_is_any_of_type (win, types, 4);
 622                 if (dimmed)
 623                         modest_dimming_rule_set_notification (rule, "");
 624         }
 625
 626         return dimmed;
 627 }
 628
 629 gboolean
 630 modest_ui_dimming_rules_on_open_msg (ModestWindow *win, gpointer user_data)
 631 {
 632         ModestDimmingRule *rule = NULL;
 633         gboolean dimmed = FALSE;
 634         const DimmedState *state = NULL;
 635
 636         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 637         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 638         rule = MODEST_DIMMING_RULE (user_data);
 639         state = modest_window_get_dimming_state (win);
 640
 641         /* Check dimmed rule */
 642         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 643         if (!dimmed) {
 644                 if (state)
 645                         dimmed = state->any_marked_as_deleted;
 646                 if (dimmed) {
 647                         gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 648                         modest_dimming_rule_set_notification (rule, msg);
 649                         g_free (msg);
 650                 }
 651         }
 652         if (!dimmed) {
 653                 dimmed = _selected_msg_sent_in_progress (win);
 654                 if (dimmed)
 655                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_open_while_sent"));
 656         }
 657
 658         return dimmed;
 659 }
 660
 661 gboolean
 662 modest_ui_dimming_rules_on_reply_msg (ModestWindow *win, gpointer user_data)
 663 {
 664         ModestDimmingRule *rule = NULL;
 665         gboolean dimmed = FALSE;
 666         TnyFolderType types[3];
 667
 668         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 669         rule = MODEST_DIMMING_RULE (user_data);
 670
 671         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 672         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 673         types[2] = TNY_FOLDER_TYPE_ROOT;
 674
 675         /* Check dimmed rule */
 676         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 677         if (dimmed)
 678                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 679
 680         /* main window dimming rules */
 681         if (MODEST_IS_MAIN_WINDOW(win)) {
 682
 683                 if (!dimmed) {
 684                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 685                         if (dimmed)
 686                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_nothing_to_reply"));
 687                 }
 688                 if (!dimmed) {
 689                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, rule);
 690                 }
 691         /* msg view window dimming rules */
 692         } else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
 693
 694                 /* This could happen if we load the msg view window with a
 695                    preview before loading the full message */
 696                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
 697                 if (!msg) {
 698                         dimmed = TRUE;
 699                 } else {
 700                         g_object_unref (msg);
 701                 }
 702
 703                 if (!dimmed) {
 704                         dimmed = _transfer_mode_enabled (win);
 705                         if (dimmed)
 706                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 707                 }
 708                 if (!dimmed) {
 709                         dimmed = _msg_download_in_progress (win);
 710                         if (dimmed)
 711                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 712                 }
 713         }
 714
 715         return dimmed;
 716 }
 717
 718
 719 gboolean
 720 modest_ui_dimming_rules_on_contents_msg (ModestWindow *win, gpointer user_data)
 721 {
 722         ModestDimmingRule *rule = NULL;
 723         gboolean dimmed = FALSE;
 724
 725         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 726         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 727         rule = MODEST_DIMMING_RULE (user_data);
 728
 729         /* Check dimmed rule */
 730         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 731         if (!dimmed) {
 732                 dimmed = _msg_download_completed (MODEST_MAIN_WINDOW(win));
 733                 if (dimmed)
 734                         modest_dimming_rule_set_notification (rule, "");
 735         }
 736
 737         return dimmed;
 738 }
 739
 740 gboolean
 741 modest_ui_dimming_rules_always_dimmed (ModestWindow *win, gpointer user_data)
 742 {
 743         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 744
 745         return TRUE;
 746 }
 747
 748 static gboolean
 749 _message_already_sent (ModestMsgViewWindow *view_window)
 750 {
 751         TnyHeader *header;
 752         TnyFolder *folder;
 753         gboolean already_sent = FALSE;
 754
 755         header = modest_msg_view_window_get_header (view_window);
 756         if (header) {
 757                 folder = tny_header_get_folder (header);
 758                 if (folder) {
 759                         if (modest_tny_folder_guess_folder_type (folder) ==
 760                             TNY_FOLDER_TYPE_OUTBOX) {
 761                                 ModestTnySendQueueStatus status =
 762                                         modest_tny_all_send_queues_get_msg_status (header);
 763                                 if (status == MODEST_TNY_SEND_QUEUE_UNKNOWN ||
 764                                     status == MODEST_TNY_SEND_QUEUE_SENDING)
 765                                         already_sent = TRUE;
 766                         }
 767                         g_object_unref (folder);
 768                 }
 769                 g_object_unref (header);
 770         }
 771         return already_sent;
 772 }
 773
 774
 775 gboolean
 776 modest_ui_dimming_rules_on_delete_msg (ModestWindow *win, gpointer user_data)
 777 {
 778         ModestDimmingRule *rule = NULL;
 779         const DimmedState *state = NULL;
 780         gboolean dimmed = FALSE;
 781
 782         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 783         rule = MODEST_DIMMING_RULE (user_data);
 784         state = modest_window_get_dimming_state (win);
 785
 786         /* If we're in transfer mode then do not allow to delete messages */
 787         dimmed = _transfer_mode_enabled (win);
 788         if (dimmed) {
 789                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 790                 return dimmed;
 791         }
 792
 793         /* Check dimmed rule */
 794         if (MODEST_IS_MAIN_WINDOW (win)) {
 795                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 796                 if (dimmed)
 797                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_nothing_to_delete"));
 798                 if (!dimmed) {
 799                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 800                 }
 801                 if (!dimmed) {
 802                         if (state)
 803                                 dimmed = state->sent_in_progress;
 804                         if (dimmed)
 805                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 806                 }
 807                 if (!dimmed) {
 808                         if (state)
 809                                 dimmed = state->any_marked_as_deleted;
 810                         if (dimmed) {
 811                                 gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 812                                 modest_dimming_rule_set_notification (rule, msg);
 813                                 g_free (msg);
 814                         }
 815                 }
 816                 if (!dimmed) {
 817                         if (state) {
 818                                 dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
 819                                 if (dimmed) {
 820                                         gchar *message = NULL;
 821
 822                                         message = g_strdup_printf(_("mcen_nc_unable_to_delete_n_messages"),
 823                                                                   state->already_opened_msg);
 824                                         modest_dimming_rule_set_notification (rule, message);
 825                                         g_free(message);
 826                                 }
 827                         }
 828                 }
 829         }
 830         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
 831                 /* This could happen if we load the msg view window with a
 832                    preview before loading the full message */
 833                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
 834                 if (!msg) {
 835                         dimmed = TRUE;
 836                 } else {
 837                         g_object_unref (msg);
 838                 }
 839
 840                 if (!dimmed) {
 841                         if (state)
 842                                 dimmed = state->any_marked_as_deleted;
 843                         if (dimmed) {
 844                                 gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 845                                 modest_dimming_rule_set_notification (rule, msg);
 846                                 g_free (msg);
 847                         }
 848                 }
 849                 if (!dimmed) {
 850                         if (state)
 851                                 dimmed = state->sent_in_progress;
 852                         if (dimmed)
 853                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 854                 }
 855
 856                 /* This could happen if we're viewing a message of the
 857                    outbox that has been already sent */
 858                 if (!dimmed)
 859                         dimmed = _message_already_sent (MODEST_MSG_VIEW_WINDOW(win));
 860
 861                 /* The delete button should be dimmed when viewing an attachment,
 862                  * but should be enabled when viewing a message from the list,
 863                  * or when viewing a search result.
 864                  */
 865                 if (!dimmed) {
 866                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
 867                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW(win));
 868                                 if (dimmed) {
 869                                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 870                                 }
 871                         }
 872                 }
 873         }
 874
 875         return dimmed;
 876 }
 877
 878 gboolean
 879 modest_ui_dimming_rules_on_details (ModestWindow *win, gpointer user_data)
 880 {
 881         ModestDimmingRule *rule = NULL;
 882         GtkWidget *header_view = NULL;
 883         gboolean dimmed = FALSE;
 884
 885         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 886         rule = MODEST_DIMMING_RULE (user_data);
 887
 888         /* main window dimming rules */
 889         if (MODEST_IS_MAIN_WINDOW(win)) {
 890
 891                 /* Check dimmed rule */
 892                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 893                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
 894
 895                 /* If the header view has the focus: */
 896                 if (header_view && gtk_widget_is_focus (header_view)) {
 897                         /* Check dimmed rule */
 898                         if (!dimmed)
 899                                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 900                 }
 901                 else {
 902                         /* If the folder view has the focus: */
 903                         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 904                                 MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 905                         if (folder_view && gtk_widget_is_focus (folder_view)) {
 906                                 TnyFolderStore *folder_store
 907                                         = modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
 908                                 if (folder_store) {
 909                                         /* Only enable for folders, not accounts,
 910                                          * though the UI spec is not clear about that.
 911                                          * If we enable this for accounts then we must
 912                                          * add code to handle them in modest_ui_actions_on_details(). */
 913                                         if (!TNY_IS_FOLDER(folder_store)) {
 914                                                 dimmed = TRUE;
 915                                                 modest_dimming_rule_set_notification (rule, "");
 916                                         }
 917
 918                                         g_object_unref (folder_store);
 919                                 } else {
 920                                         dimmed = TRUE;
 921                                         modest_dimming_rule_set_notification (rule, "");
 922                                 }
 923                                 if (!dimmed) {
 924                                         dimmed = _msg_download_in_progress (win);
 925                                         if (dimmed)
 926                                                 modest_dimming_rule_set_notification (rule, "");
 927                                 }
 928
 929                         } else {
 930                                 return TRUE;
 931                         }
 932                 }
 933
 934         /* msg view window dimming rules */
 935         } else {
 936                 /* Check dimmed rule */
 937                 if (MODEST_IS_MSG_VIEW_WINDOW (win))
 938                         dimmed = _msg_download_in_progress (win);
 939                 if (dimmed)
 940                         modest_dimming_rule_set_notification (rule, "");
 941         }
 942
 943         return dimmed;
 944 }
 945
 946 gboolean
 947 modest_ui_dimming_rules_on_fetch_images (ModestWindow *win, gpointer user_data)
 948 {
 949         gboolean dimmed = FALSE;
 950
 951         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW (win), FALSE);
 952
 953         dimmed = !modest_msg_view_window_has_blocked_external_images (MODEST_MSG_VIEW_WINDOW (win));
 954
 955         return dimmed;
 956 }
 957
 958
 959 gboolean
 960 modest_ui_dimming_rules_on_mark_as_read_msg_in_view (ModestWindow *win, gpointer user_data)
 961 {
 962         ModestDimmingRule *rule = NULL;
 963         TnyHeader *header;
 964         TnyHeaderFlags flags;
 965         gboolean dimmed = FALSE;
 966
 967
 968         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 969         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 970         rule = MODEST_DIMMING_RULE (user_data);
 971
 972         header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW (win));
 973         if (!header) {
 974                 dimmed = TRUE;
 975         }
 976
 977         /* If the viewer is showing a message sent as attachment */
 978         if (!dimmed)
 979                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
 980
 981         if (!dimmed) {
 982                 flags = tny_header_get_flags (header);
 983                 if (flags & TNY_HEADER_FLAG_SEEN)
 984                         dimmed = TRUE;
 985         }
 986
 987         if (header)
 988                 g_object_unref (header);
 989         return dimmed;
 990 }
 991
 992
 993 gboolean
 994 modest_ui_dimming_rules_on_mark_as_unread_msg_in_view (ModestWindow *win, gpointer user_data)
 995 {
 996         ModestDimmingRule *rule = NULL;
 997         TnyHeader *header;
 998         TnyHeaderFlags flags;
 999         gboolean dimmed = FALSE;
1000
1001
1002         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1003         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1004         rule = MODEST_DIMMING_RULE (user_data);
1005
1006         header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW (win));
1007         if (!header) {
1008                 dimmed = TRUE;
1009         }
1010
1011         /* If the viewer is showing a message sent as attachment */
1012         if (!dimmed)
1013                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
1014
1015         if (!dimmed) {
1016                 flags = tny_header_get_flags (header);
1017                 if (!(flags & TNY_HEADER_FLAG_SEEN))
1018                         dimmed = TRUE;
1019         }
1020
1021         if (header)
1022                 g_object_unref (header);
1023         return dimmed;
1024 }
1025
1026 gboolean
1027 modest_ui_dimming_rules_on_mark_as_read_msg (ModestWindow *win, gpointer user_data)
1028 {
1029         ModestDimmingRule *rule = NULL;
1030         TnyHeaderFlags flags;
1031         const DimmedState *state = NULL;
1032         gboolean dimmed = FALSE;
1033
1034         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1035         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1036         rule = MODEST_DIMMING_RULE (user_data);
1037         state = modest_window_get_dimming_state (win);
1038
1039         flags = TNY_HEADER_FLAG_SEEN;
1040
1041         /* Check dimmed rule */
1042         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
1043         if (!dimmed) {
1044                 if (state)
1045                         dimmed = state->all_marked_as_seen;
1046                 if (dimmed)
1047                         modest_dimming_rule_set_notification (rule, "");
1048         }
1049
1050         return dimmed;
1051 }
1052
1053 gboolean
1054 modest_ui_dimming_rules_on_mark_as_unread_msg (ModestWindow *win, gpointer user_data)
1055 {
1056         ModestDimmingRule *rule = NULL;
1057         TnyHeaderFlags flags;
1058         const DimmedState *state = NULL;
1059         gboolean dimmed = FALSE;
1060
1061         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1062         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1063         rule = MODEST_DIMMING_RULE (user_data);
1064         state = modest_window_get_dimming_state (win);
1065
1066         flags = TNY_HEADER_FLAG_SEEN;
1067
1068         /* Check dimmed rule */
1069         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
1070         if (!dimmed) {
1071                 if (state)
1072                         dimmed = !state->any_marked_as_seen;
1073                 if (dimmed)
1074                         modest_dimming_rule_set_notification (rule, "");
1075         }
1076
1077         return dimmed;
1078 }
1079
1080 gboolean
1081 modest_ui_dimming_rules_on_move_to (ModestWindow *win, gpointer user_data)
1082 {
1083         ModestDimmingRule *rule = NULL;
1084         gboolean dimmed = FALSE;
1085
1086         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1087         rule = MODEST_DIMMING_RULE (user_data);
1088
1089         if (MODEST_IS_MAIN_WINDOW (win))
1090                 dimmed = modest_ui_dimming_rules_on_main_window_move_to (win, user_data);
1091 #ifdef MODEST_TOOLKIT_HILDON2
1092         else if (MODEST_IS_HEADER_WINDOW (win))
1093                 dimmed = modest_ui_dimming_rules_on_header_window_move_to (win, user_data);
1094         else if (MODEST_IS_FOLDER_WINDOW (win))
1095                 dimmed = modest_ui_dimming_rules_on_folder_window_move_to (win, user_data);
1096 #endif
1097         else if (MODEST_IS_MSG_VIEW_WINDOW (win))
1098                  dimmed = modest_ui_dimming_rules_on_view_window_move_to (win, user_data);
1099
1100         return dimmed;
1101 }
1102
1103
1104 gboolean
1105 modest_ui_dimming_rules_on_main_window_move_to (ModestWindow *win, gpointer user_data)
1106 {
1107         GtkWidget *folder_view = NULL;
1108         ModestDimmingRule *rule = NULL;
1109         const DimmedState *state = NULL;
1110         gboolean dimmed = FALSE;
1111
1112         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
1113         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1114         rule = MODEST_DIMMING_RULE (user_data);
1115         state = modest_window_get_dimming_state (win);
1116
1117         /* Get the folder view */
1118         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1119                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1120
1121         if (folder_view) {
1122                 TnyFolderStore *selected = modest_folder_view_get_selected ((ModestFolderView *)folder_view);
1123                 if (selected) {
1124                         TnyAccount *account = NULL;
1125
1126                         if (TNY_IS_ACCOUNT (selected)) {
1127                                 account = g_object_ref (selected);
1128                         } else if (!TNY_IS_MERGE_FOLDER (selected)){
1129                                 account = tny_folder_get_account (TNY_FOLDER (selected));
1130                         }
1131                         if (account) {
1132                                 ModestProtocolType protocol_type;
1133
1134                                 protocol_type = modest_tny_account_get_protocol_type (account);
1135                                 dimmed  = modest_protocol_registry_protocol_type_has_tag
1136                                         (modest_runtime_get_protocol_registry (),
1137                                          protocol_type,
1138                                          MODEST_PROTOCOL_REGISTRY_STORE_FORBID_OUTGOING_XFERS);
1139
1140                                 g_object_unref (account);
1141                         }
1142                         g_object_unref (selected);
1143                 }
1144         }
1145
1146         /* Check diming rules for folders transfer  */
1147         if (!dimmed && folder_view && gtk_widget_is_focus (folder_view)) {
1148                 TnyFolderType types[5];
1149
1150                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
1151                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
1152                 types[2] = TNY_FOLDER_TYPE_SENT;
1153                 types[3] = TNY_FOLDER_TYPE_ROOT;
1154                 types[4] = TNY_FOLDER_TYPE_INBOX;
1155
1156                 /* Apply folder rules */
1157                 dimmed = _selected_folder_not_moveable (MODEST_MAIN_WINDOW(win));
1158                 if (dimmed)
1159                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1160                 if (!dimmed) {
1161                         dimmed = _selected_folder_is_any_of_type (win, types, 5);
1162                         if (dimmed)
1163                                 modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1164                 }
1165         }
1166
1167         /* Check diming rules for messages transfer  */
1168         if (!dimmed) {
1169                 if (state) {
1170                         dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
1171                         if (dimmed) {
1172                                 gchar *message = g_strdup_printf(_("emev_nc_unabletomove_items"),
1173                                                                  state->already_opened_msg);
1174                                 modest_dimming_rule_set_notification (rule, message);
1175                                 g_free(message);
1176                         }
1177                 }
1178         }
1179         if (!dimmed) {
1180                 if (!(folder_view && gtk_widget_is_focus (folder_view)))
1181                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
1182
1183         }
1184         if (!dimmed) {
1185                 dimmed = _selected_msg_sent_in_progress (win);
1186                 if (dimmed)
1187                         modest_dimming_rule_set_notification (rule, _("sfil_ib_unable_to_move_selected_items"));
1188         }
1189
1190         return dimmed;
1191 }
1192
1193 static gboolean
1194 _forbid_outgoing_xfers (ModestWindow *window)
1195 {
1196         const gchar *account_name = NULL;
1197         TnyAccount *account = NULL;
1198         gboolean dimmed = FALSE;
1199
1200 #ifdef MODEST_TOOLKIT_HILDON2
1201         /* We cannot just get the active account because the active
1202            account of a header window that shows the headers of a
1203            local account is the ID of the remote account */
1204         if (MODEST_IS_HEADER_WINDOW (window)) {
1205                 ModestHeaderView *header_view;
1206                 TnyFolder *folder;
1207
1208                 header_view = modest_header_window_get_header_view ((ModestHeaderWindow *) window);
1209                 folder = modest_header_view_get_folder (header_view);
1210
1211                 if (folder) {
1212                         account = modest_tny_folder_get_account (folder);
1213                         g_object_unref (folder);
1214                 }
1215         }
1216 #endif
1217
1218         if (!account) {
1219                 account_name = modest_window_get_active_account (window);
1220                 account = modest_tny_account_store_get_server_account (modest_runtime_get_account_store (),
1221                                                                        account_name,
1222                                                                        TNY_ACCOUNT_TYPE_STORE);
1223         }
1224
1225         if (account) {
1226                 ModestProtocolType protocol_type;
1227
1228                 protocol_type = modest_tny_account_get_protocol_type (account);
1229                 dimmed  = modest_protocol_registry_protocol_type_has_tag
1230                         (modest_runtime_get_protocol_registry (),
1231                          protocol_type,
1232                          MODEST_PROTOCOL_REGISTRY_STORE_FORBID_OUTGOING_XFERS);
1233
1234                 g_object_unref (account);
1235         }
1236         return dimmed;
1237 }
1238
1239 gboolean
1240 modest_ui_dimming_rules_on_view_window_move_to (ModestWindow *win, gpointer user_data)
1241 {
1242         ModestDimmingRule *rule = NULL;
1243         gboolean dimmed = FALSE;
1244
1245         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1246         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1247         rule = MODEST_DIMMING_RULE (user_data);
1248
1249         /* This could happen if we load the msg view window with a
1250            preview before loading the full message */
1251         TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
1252         if (!msg) {
1253                 return TRUE;
1254         } else {
1255                 g_object_unref (msg);
1256         }
1257
1258         /* Check dimmed rule */
1259         dimmed = _transfer_mode_enabled (win);
1260         if (dimmed)
1261                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1262
1263         if (!dimmed)
1264                 dimmed = _forbid_outgoing_xfers (win);
1265
1266         if (!dimmed) {
1267                 const DimmedState *state = modest_window_get_dimming_state (win);
1268                 if (state) {
1269                         dimmed = state->any_marked_as_deleted;
1270                         if (dimmed) {
1271                                 gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
1272                                 modest_dimming_rule_set_notification (rule, msg);
1273                                 g_free (msg);
1274                         }
1275                 }
1276         }
1277
1278         if (!dimmed) {
1279                 dimmed = _selected_msg_sent_in_progress (win);
1280                 if (dimmed)
1281                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_item"));
1282         }
1283
1284         /* This could happen if we're viewing a message of the outbox
1285            that has been already sent */
1286         if (!dimmed)
1287                 dimmed = _message_already_sent (MODEST_MSG_VIEW_WINDOW(win));
1288
1289         if (!dimmed) {
1290                 if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1291                         /* The move_to button should be dimmed when viewing an attachment,
1292                          * but should be enabled when viewing a message from the list,
1293                          * or when viewing a search result.
1294                          */
1295                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
1296                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
1297                         }
1298                 }
1299                 if (dimmed)
1300                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_item"));
1301         }
1302
1303         return dimmed;
1304 }
1305
1306 gboolean
1307 modest_ui_dimming_rules_on_find_in_msg (ModestWindow *win, gpointer user_data)
1308 {
1309         ModestDimmingRule *rule = NULL;
1310         gboolean dimmed = FALSE;
1311
1312         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1313         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1314         rule = MODEST_DIMMING_RULE (user_data);
1315
1316         /* This could happen if we load the msg view window with a
1317            preview before loading the full message */
1318         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1319                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
1320                 if (!msg) {
1321                         return TRUE;
1322                 } else {
1323                         g_object_unref (msg);
1324                 }
1325         }
1326
1327         /* Check dimmed rule */
1328         dimmed = _transfer_mode_enabled (win);
1329         if (dimmed)
1330                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1331
1332         return dimmed;
1333 }
1334
1335 gboolean
1336 modest_ui_dimming_rules_on_paste (ModestWindow *win, gpointer user_data)
1337 {
1338         ModestDimmingRule *rule = NULL;
1339         TnyFolderType types[3];
1340         gboolean dimmed = FALSE;
1341
1342         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1343         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1344         rule = MODEST_DIMMING_RULE (user_data);
1345
1346         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1347         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1348         types[2] = TNY_FOLDER_TYPE_SENT;
1349
1350         /* Check dimmed rule */
1351         dimmed = _clipboard_is_empty (win);
1352         if (dimmed)
1353                 modest_dimming_rule_set_notification (rule,
1354                                                       _CS("ecoc_ib_edwin_nothing_to_paste"));
1355         if (!dimmed) {
1356                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1357                 if (dimmed)
1358                         modest_dimming_rule_set_notification (rule,
1359                                                               _CS("ckct_ib_unable_to_paste_here"));
1360         }
1361         if (!dimmed) {
1362                 dimmed = !_folder_view_has_focus (win);
1363                 if (dimmed)
1364                         modest_dimming_rule_set_notification (rule,
1365                                         _CS("ckct_ib_unable_to_paste_here"));
1366         }
1367         if (!dimmed) {
1368                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win), TRUE);
1369                 if (dimmed)
1370                         modest_dimming_rule_set_notification (rule,
1371                                                               _CS("ckct_ib_unable_to_paste_here"));
1372         }
1373         if (!dimmed) {
1374                 dimmed = _selected_folder_is_same_as_source (win);
1375                 if (dimmed)
1376                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_copy_target_error"));
1377         }
1378         if (!dimmed) {
1379                 dimmed = _selected_folder_has_subfolder_with_same_name (win);
1380                 if (dimmed)
1381                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_copy_target_error"));
1382         }
1383
1384         return dimmed;
1385 }
1386
1387
1388 gboolean
1389 modest_ui_dimming_rules_on_select_all (ModestWindow *win, gpointer user_data)
1390 {
1391         ModestDimmingRule *rule = NULL;
1392         gboolean dimmed = FALSE;
1393         GtkWidget *focused = NULL;
1394
1395         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1396         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1397         rule = MODEST_DIMMING_RULE (user_data);
1398
1399         focused = gtk_window_get_focus (GTK_WINDOW (win));
1400
1401         /* Main window dimming rules */
1402         if (MODEST_IS_MAIN_WINDOW (win))
1403                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1404
1405         if (!dimmed && MODEST_IS_MAIN_WINDOW (win))
1406                 dimmed = _header_view_is_all_selected (MODEST_MAIN_WINDOW(win));
1407
1408         if (!dimmed && GTK_IS_ENTRY (focused)) {
1409                 const gchar *current_text;
1410                 current_text = gtk_entry_get_text (GTK_ENTRY (focused));
1411                 dimmed = ((current_text == NULL) || (current_text[0] == '\0'));
1412         }
1413
1414         if (!dimmed && GTK_IS_TEXT_VIEW (focused)) {
1415                 GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
1416                 dimmed = (gtk_text_buffer_get_char_count (buffer) < 1);
1417         }
1418
1419         if (dimmed && MODEST_IS_ATTACHMENTS_VIEW (focused))
1420                 dimmed = FALSE;
1421         return dimmed;
1422 }
1423
1424 gboolean
1425 modest_ui_dimming_rules_on_view_attachments (ModestWindow *win, gpointer user_data)
1426 {
1427         ModestDimmingRule *rule = NULL;
1428         gboolean dimmed = FALSE;
1429
1430         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1431         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1432         rule = MODEST_DIMMING_RULE (user_data);
1433
1434         /* Check dimmed rule */
1435         dimmed = _invalid_attach_selected (win, TRUE, TRUE, FALSE, rule);
1436
1437         if (!dimmed) {
1438                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1439                 if (dimmed) {
1440                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1441                 }
1442         }
1443
1444         return dimmed;
1445 }
1446
1447 #ifdef MODEST_TOOLKIT_HILDON2
1448 static gboolean
1449 _not_valid_attachments (ModestWindow *win, gboolean save_not_remove)
1450 {
1451         gint n_attachments;
1452         TnyList *attachments;
1453         gboolean result = FALSE;
1454
1455         /* Get atachments */
1456         attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1457         n_attachments = tny_list_get_length (attachments);
1458
1459         /* Check unique */
1460         if (!result) {
1461                 result = n_attachments < 1;
1462         }
1463
1464         /* Check attached type (view operation not required) */
1465         if (!result)  {
1466                 gint n_valid = 0;
1467
1468                 TnyIterator *iter;
1469                 iter = tny_list_create_iterator (attachments);
1470                 while (!tny_iterator_is_done (iter)) {
1471                         gboolean is_valid = TRUE;
1472                         TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
1473                         TnyList *nested_list = tny_simple_list_new ();
1474                         tny_mime_part_get_parts (mime_part, nested_list);
1475
1476                         if (tny_mime_part_is_purged (mime_part)) {
1477                                 is_valid = FALSE;
1478                         }
1479
1480                         if (is_valid && modest_tny_mime_part_is_msg (mime_part)) {
1481                                 TnyMsg *window_msg;
1482                                 window_msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
1483                                 if (window_msg) {
1484                                         if (save_not_remove && (TnyMimePart *) window_msg != mime_part) {
1485                                                 is_valid = FALSE;
1486                                         }
1487                                         g_object_unref (window_msg);
1488                                 }
1489                                 if (is_valid && save_not_remove && tny_list_get_length (nested_list) > 0) {
1490                                         is_valid = FALSE;
1491                                 }
1492                         }
1493                         g_object_unref (nested_list);
1494                         g_object_unref (mime_part);
1495                         tny_iterator_next (iter);
1496
1497                         if (is_valid)
1498                                 n_valid++;
1499                 }
1500                 g_object_unref (iter);
1501                 result = (n_valid == 0);
1502         }
1503         g_object_unref (attachments);
1504         return result;
1505
1506 }
1507 #endif
1508
1509 gboolean
1510 modest_ui_dimming_rules_on_save_attachments (ModestWindow *win, gpointer user_data)
1511 {
1512         ModestDimmingRule *rule = NULL;
1513         gboolean dimmed = FALSE;
1514
1515         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1516         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1517         rule = MODEST_DIMMING_RULE (user_data);
1518
1519         /* Check dimmed rule */
1520
1521 #ifdef MODEST_TOOLKIT_HILDON2
1522         dimmed = _not_valid_attachments (win, TRUE);
1523 #else
1524         dimmed = _invalid_attach_selected (win, FALSE, FALSE, FALSE, rule);
1525
1526         if (!dimmed) {
1527                 dimmed = _purged_attach_selected (win, TRUE, NULL);
1528                 if (dimmed) {
1529                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1530                 }
1531         }
1532 #endif
1533         return dimmed;
1534 }
1535
1536 gboolean
1537 modest_ui_dimming_rules_on_remove_attachments (ModestWindow *win, gpointer user_data)
1538 {
1539         ModestDimmingRule *rule = NULL;
1540         const DimmedState *state = NULL;
1541         gboolean dimmed = FALSE;
1542
1543         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1544         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1545         rule = MODEST_DIMMING_RULE (user_data);
1546         state = modest_window_get_dimming_state (win);
1547
1548         /* Check in main window if there's only one message selected */
1549         if (MODEST_IS_MAIN_WINDOW (win)) {
1550                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW (win), TRUE, rule);
1551         }
1552
1553         /* Check in view window if there's any attachment selected */
1554         if (!dimmed && MODEST_IS_MSG_VIEW_WINDOW (win)) {
1555                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, TRUE, NULL);
1556                 if (dimmed)
1557                         modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1558         }
1559
1560         if (!dimmed) {
1561
1562                 dimmed = _selected_msg_sent_in_progress (win);
1563                 if (dimmed) {
1564                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1565                 }
1566         }
1567
1568         /* cannot purge in editable drafts nor pop folders */
1569         if (!dimmed) {
1570                 dimmed = _invalid_folder_for_purge (win, rule);
1571                 if (dimmed)
1572                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1573         }
1574
1575         /* Check if the selected message in main window has attachments */
1576         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1577                 if (state)
1578                         dimmed = !(state->any_has_attachments);
1579                 if (dimmed)
1580                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1581         }
1582
1583         /* Check if all attachments are already purged */
1584         if (!dimmed) {
1585                 dimmed = _purged_attach_selected (win, TRUE, rule);
1586         }
1587
1588         /* Check if the message is already downloaded */
1589         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1590                 dimmed = !_msg_download_completed (MODEST_MAIN_WINDOW (win));
1591                 if (dimmed)
1592                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1593         }
1594
1595         return dimmed;
1596 }
1597
1598 gboolean
1599 modest_ui_dimming_rules_on_undo (ModestWindow *win, gpointer user_data)
1600 {
1601         ModestDimmingRule *rule = NULL;
1602         gboolean dimmed = FALSE;
1603
1604         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1605         rule = MODEST_DIMMING_RULE (user_data);
1606
1607         /* Check dimmed rule */
1608         if (MODEST_IS_MAIN_WINDOW (win)) {
1609                 dimmed = _clipboard_is_empty (win);
1610                 if (dimmed)
1611                         modest_dimming_rule_set_notification (rule, "");
1612         }
1613
1614         if (!dimmed && MODEST_IS_MSG_EDIT_WINDOW (win)) {
1615                 dimmed = !modest_msg_edit_window_can_undo (MODEST_MSG_EDIT_WINDOW (win));
1616         }
1617
1618         return dimmed;
1619 }
1620
1621 gboolean
1622 modest_ui_dimming_rules_on_redo (ModestWindow *win, gpointer user_data)
1623 {
1624         ModestDimmingRule *rule = NULL;
1625         gboolean dimmed = FALSE;
1626
1627         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1628         rule = MODEST_DIMMING_RULE (user_data);
1629
1630         /* Check dimmed rule */
1631         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
1632                 dimmed = !modest_msg_edit_window_can_redo (MODEST_MSG_EDIT_WINDOW (win));
1633         }
1634
1635         return dimmed;
1636 }
1637
1638 gboolean
1639 modest_ui_dimming_rules_on_cut (ModestWindow *win, gpointer user_data)
1640 {
1641         ModestDimmingRule *rule = NULL;
1642         const DimmedState *state = NULL;
1643         gboolean dimmed = FALSE;
1644
1645         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1646         rule = MODEST_DIMMING_RULE (user_data);
1647         state = modest_window_get_dimming_state (win);
1648
1649         /* Check common dimming rules */
1650         dimmed = _invalid_clipboard_selected (win, rule);
1651
1652         /* Check window specific dimming rules */
1653         if (MODEST_IS_MAIN_WINDOW (win)) {
1654                 /* Get focused widget */
1655                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1656
1657                 if (MODEST_IS_HEADER_VIEW (focused)) {
1658                         if (!dimmed) {
1659                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1660                                 if (dimmed)
1661                                         modest_dimming_rule_set_notification (rule, "");
1662                         }
1663                         if (!dimmed) {
1664                                 dimmed = _selected_msg_sent_in_progress (win);
1665                                 if (dimmed)
1666                                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1667                         }
1668                         if (!dimmed) {
1669                                 if (state)
1670                                         dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
1671                                 if(dimmed)
1672                                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1673                         }
1674                 }
1675                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1676                         TnyFolderType types[3];
1677
1678                         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1679                         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1680                         types[2] = TNY_FOLDER_TYPE_SENT;
1681
1682                         /* Apply folder rules */
1683                         if (!dimmed) {
1684                                 dimmed = _selected_folder_not_deletable (MODEST_MAIN_WINDOW(win));
1685                                 if (dimmed)
1686                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1687                         }
1688                         if (!dimmed) {
1689                                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
1690                                 if (dimmed)
1691                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1692                         }
1693                         if (!dimmed) {
1694                                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1695                                 if (dimmed)
1696                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1697                         }
1698                 }
1699         }
1700
1701         return dimmed;
1702 }
1703
1704 gboolean
1705 modest_ui_dimming_rules_on_copy (ModestWindow *win, gpointer user_data)
1706 {
1707         ModestDimmingRule *rule = NULL;
1708         const DimmedState *state = NULL;
1709         gboolean dimmed = FALSE;
1710
1711         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1712         rule = MODEST_DIMMING_RULE (user_data);
1713         state = modest_window_get_dimming_state (win);
1714
1715         /* Check common dimming rules */
1716         dimmed = _invalid_clipboard_selected (win, rule);
1717
1718         /* Check window specific dimming rules */
1719         if (MODEST_IS_MAIN_WINDOW (win)) {
1720                 /* Get focused widget */
1721                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1722
1723                 if (MODEST_IS_HEADER_VIEW (focused)) {
1724                         if (!dimmed) {
1725                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1726                                 if (dimmed)
1727                                         modest_dimming_rule_set_notification (rule, "");
1728                         }
1729                         if (!dimmed) {
1730                                 dimmed = _selected_msg_sent_in_progress (win);
1731                                 if (dimmed)
1732                                         modest_dimming_rule_set_notification (rule, _(""));
1733                         }
1734                         if (!dimmed) {
1735                                 if (state)
1736                                         dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
1737                                 if(dimmed)
1738                                         modest_dimming_rule_set_notification (rule, _(""));
1739                         }
1740                 }
1741                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1742                         TnyFolderType types[3];
1743
1744                         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1745                         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1746                         types[2] = TNY_FOLDER_TYPE_SENT;
1747
1748                         if (!dimmed) {
1749                                 dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
1750                                 if (dimmed)
1751                                         modest_dimming_rule_set_notification (rule, _(""));
1752                         }
1753                         if (!dimmed) {
1754                                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1755                                 if (dimmed)
1756                                         modest_dimming_rule_set_notification (rule, _(""));
1757                         }
1758                 }
1759         }
1760
1761         return dimmed;
1762 }
1763
1764 gboolean
1765 modest_ui_dimming_rules_on_set_style (ModestWindow *win, gpointer user_data)
1766 {
1767         ModestDimmingRule *rule = NULL;
1768         gboolean dimmed = FALSE;
1769
1770         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1771         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1772         rule = MODEST_DIMMING_RULE (user_data);
1773
1774         /* Check common dimming rules */
1775         ModestMsgEditFormat format;
1776         format = modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
1777
1778         dimmed = (format != MODEST_MSG_EDIT_FORMAT_HTML);
1779         if (dimmed)
1780                 modest_dimming_rule_set_notification (rule, _("mcen_ib_item_unavailable_plaintext"));
1781
1782         if (!dimmed) {
1783                 GtkWidget *body;
1784                 body = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1785                                                                 MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1786
1787                 dimmed = ((body == NULL)||(!gtk_widget_is_focus (body)));
1788                 if (dimmed)
1789                         modest_dimming_rule_set_notification (rule, _("mcen_ib_move_cursor_to_message"));
1790         }
1791
1792
1793         return dimmed;
1794 }
1795
1796 gboolean
1797 modest_ui_dimming_rules_on_zoom (ModestWindow *win, gpointer user_data)
1798 {
1799         ModestDimmingRule *rule = NULL;
1800         gboolean dimmed = FALSE;
1801
1802         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1803         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1804         rule = MODEST_DIMMING_RULE (user_data);
1805
1806         GtkWidget *body;
1807         body = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1808                                                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1809
1810         dimmed = ((body == NULL)||(!gtk_widget_is_focus (body)));
1811         if (dimmed)
1812                 modest_dimming_rule_set_notification (rule, _("mcen_ib_move_cursor_to_message"));
1813
1814         return dimmed;
1815 }
1816
1817 gboolean
1818 modest_ui_dimming_rules_on_editor_paste (ModestWindow *win, gpointer user_data)
1819 {
1820         ModestDimmingRule *rule = NULL;
1821         gboolean dimmed = FALSE;
1822         GtkWidget *focused = NULL;
1823
1824         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1825         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1826         rule = MODEST_DIMMING_RULE (user_data);
1827
1828         focused = gtk_window_get_focus (GTK_WINDOW (win));
1829
1830         dimmed = MODEST_IS_ATTACHMENTS_VIEW (focused);
1831
1832         if (!dimmed) {
1833                 dimmed = GTK_IS_TOGGLE_BUTTON (focused);
1834         }
1835
1836         if (!dimmed) {
1837                 ModestEmailClipboard *e_clipboard = modest_runtime_get_email_clipboard ();
1838                 const gchar *clipboard_text = modest_msg_edit_window_get_clipboard_text (MODEST_MSG_EDIT_WINDOW (win));
1839
1840                 dimmed = modest_email_clipboard_cleared (e_clipboard) &&
1841                   ((clipboard_text == NULL) || (clipboard_text[0] == '\0'));
1842         }
1843
1844         return dimmed;
1845 }
1846
1847 gboolean
1848 modest_ui_dimming_rules_on_editor_remove_attachment (ModestWindow *win, gpointer user_data)
1849 {
1850         ModestDimmingRule *rule = NULL;
1851         gboolean dimmed = FALSE;
1852         TnyList *selected_attachments = NULL;
1853         gint n_att_selected = 0;
1854         GtkWidget *attachments_view;
1855
1856         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1857         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1858         rule = MODEST_DIMMING_RULE (user_data);
1859
1860         attachments_view = modest_msg_edit_window_get_child_widget (
1861                                                                     MODEST_MSG_EDIT_WINDOW (win),
1862                                                                     MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_ATTACHMENTS);
1863
1864 #ifdef MODEST_TOOLKIT_HILDON2
1865         selected_attachments = modest_attachments_view_get_attachments (
1866                                                                       MODEST_ATTACHMENTS_VIEW (attachments_view));
1867 #else
1868         selected_attachments = modest_attachments_view_get_selection (
1869                                                                       MODEST_ATTACHMENTS_VIEW (attachments_view));
1870 #endif
1871         n_att_selected = tny_list_get_length (selected_attachments);
1872         g_object_unref (selected_attachments);
1873
1874         dimmed = (n_att_selected < 1);
1875
1876         return dimmed;
1877 }
1878
1879 gboolean
1880 modest_ui_dimming_rules_on_send (ModestWindow *win, gpointer user_data)
1881 {
1882         ModestDimmingRule *rule = NULL;
1883         gboolean dimmed = FALSE;
1884         GtkWidget *body_field;
1885
1886         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1887         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1888         rule = MODEST_DIMMING_RULE (user_data);
1889
1890         body_field = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1891                                                               MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1892
1893         if (!dimmed) {
1894                 GtkWidget *to_field, *cc_field, *bcc_field;
1895                 GtkTextBuffer * to_buffer, *cc_buffer, *bcc_buffer;
1896                 cc_field = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1897                                                                     MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_CC);
1898                 to_field = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1899                                                                     MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_TO);
1900                 bcc_field = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1901                                                                      MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BCC);
1902                 to_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (to_field));
1903                 cc_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (cc_field));
1904                 bcc_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (bcc_field));
1905
1906                 dimmed = ((gtk_text_buffer_get_char_count (to_buffer) +
1907                            gtk_text_buffer_get_char_count (cc_buffer) +
1908                            gtk_text_buffer_get_char_count (bcc_buffer)) == 0);
1909                 if (dimmed)
1910                         modest_dimming_rule_set_notification (rule, _("mcen_ib_add_recipients_first"));
1911         }
1912
1913         return dimmed;
1914 }
1915
1916 gboolean
1917 modest_ui_dimming_rules_on_view_previous (ModestWindow *win, gpointer user_data)
1918 {
1919         ModestDimmingRule *rule = NULL;
1920         gboolean dimmed = FALSE;
1921
1922         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1923         rule = MODEST_DIMMING_RULE (user_data);
1924
1925         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1926
1927         /* Check dimmed rule */
1928         dimmed = _transfer_mode_enabled (win);
1929         if (dimmed)
1930                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1931
1932         if (!dimmed) {
1933                 dimmed = modest_msg_view_window_first_message_selected (
1934                                 MODEST_MSG_VIEW_WINDOW(win));
1935                 modest_dimming_rule_set_notification (rule, NULL);
1936         }
1937
1938         return dimmed;
1939 }
1940
1941 gboolean
1942 modest_ui_dimming_rules_on_view_next (ModestWindow *win, gpointer user_data)
1943 {
1944         ModestDimmingRule *rule = NULL;
1945         gboolean dimmed = FALSE;
1946
1947         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1948         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1949         rule = MODEST_DIMMING_RULE (user_data);
1950
1951         /* Check dimmed rule */
1952         dimmed = _transfer_mode_enabled (win);
1953         if (dimmed)
1954                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1955
1956         if (!dimmed) {
1957                 dimmed = modest_msg_view_window_last_message_selected (MODEST_MSG_VIEW_WINDOW (win));
1958                 modest_dimming_rule_set_notification (rule, NULL);
1959         }
1960
1961         return dimmed;
1962 }
1963
1964
1965 gboolean
1966 modest_ui_dimming_rules_on_tools_smtp_servers (ModestWindow *win, gpointer user_data)
1967 {
1968         gboolean dimmed;
1969         ModestAccountMgr *mgr;
1970
1971         mgr = modest_runtime_get_account_mgr();
1972         dimmed = !modest_account_mgr_has_accounts(mgr, TRUE);
1973
1974         /* Dimm it if we only have metaaccounts */
1975         if (!dimmed) {
1976                 ModestProtocolRegistry *reg = modest_runtime_get_protocol_registry ();
1977                 GSList *account_names = modest_account_mgr_account_names (mgr, TRUE);
1978
1979                 if (account_names) {
1980                         ModestProtocolType store_protocol;
1981                         gboolean found = FALSE;
1982                         GSList *iter = account_names;
1983                         const gchar *tag = MODEST_PROTOCOL_REGISTRY_MULTI_MAILBOX_PROVIDER_PROTOCOLS;
1984
1985                         while (iter && !found) {
1986                                 gchar* account_name;
1987
1988                                 account_name = (gchar *) iter->data;
1989                                 store_protocol = modest_account_mgr_get_store_protocol (mgr, account_name);
1990
1991                                 if (!modest_protocol_registry_protocol_type_has_tag (reg, store_protocol, tag))
1992                                         found = TRUE;
1993                                 else
1994                                         iter = g_slist_next (iter);
1995                         }
1996                         modest_account_mgr_free_account_names (account_names);
1997                         dimmed = !found;
1998                 }
1999         }
2000
2001         return dimmed;
2002 }
2003
2004 gboolean
2005 modest_ui_dimming_rules_on_cancel_sending (ModestWindow *win, gpointer user_data)
2006 {
2007         ModestDimmingRule *rule = NULL;
2008         TnyFolderType types[1];
2009         const DimmedState *state = NULL;
2010         gboolean dimmed = FALSE;
2011
2012         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2013         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2014         rule = MODEST_DIMMING_RULE (user_data);
2015         state = modest_window_get_dimming_state (win);
2016
2017         types[0] = TNY_FOLDER_TYPE_OUTBOX;
2018
2019         /* Check dimmed rules */
2020         dimmed = !_selected_folder_is_any_of_type (win, types, 1);
2021         if (dimmed)
2022                 modest_dimming_rule_set_notification (rule, "");
2023         if (!dimmed) {
2024                 if (state)
2025                         dimmed = !state->sent_in_progress;
2026                 if (dimmed)
2027                         modest_dimming_rule_set_notification (rule, "");
2028         }
2029
2030         return dimmed;
2031 }
2032
2033 gboolean
2034 modest_ui_dimming_rules_on_cancel_sending_all (ModestWindow *win, gpointer user_data)
2035 {
2036         /* We dim if no msg send is in progress (and then cancelling send all has no
2037          * effect */
2038         return !_msgs_send_in_progress ();
2039 }
2040
2041 gboolean
2042 modest_ui_dimming_rules_on_send_receive (ModestWindow *win, gpointer user_data)
2043 {
2044         ModestDimmingRule *rule = NULL;
2045         gboolean dimmed = FALSE;
2046         ModestAccountMgr *mgr;
2047         const gchar* account_name;
2048
2049         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2050         rule = MODEST_DIMMING_RULE (user_data);
2051         mgr = modest_runtime_get_account_mgr();
2052
2053         /* Check dimmed rule */
2054         account_name = modest_window_get_active_account (win);
2055
2056         if (account_name)
2057                 dimmed = modest_account_mgr_account_is_busy (mgr, account_name);
2058         else
2059                 dimmed = TRUE;
2060
2061         if (dimmed)
2062                 modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
2063
2064         return dimmed;
2065 }
2066
2067 gboolean
2068 modest_ui_dimming_rules_on_send_receive_all (ModestWindow *win, gpointer user_data)
2069 {
2070         ModestDimmingRule *rule = NULL;
2071         gboolean dimmed = FALSE;
2072
2073         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2074         rule = MODEST_DIMMING_RULE (user_data);
2075
2076         /* Check dimmed rule */
2077         GSList *account_names = modest_account_mgr_account_names (modest_runtime_get_account_mgr (), TRUE);
2078         if (g_slist_length (account_names) < 1)
2079                 dimmed = TRUE;
2080         if (dimmed)
2081                 modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
2082
2083         modest_account_mgr_free_account_names (account_names);
2084
2085         if (!dimmed) {
2086                 dimmed = _send_receive_in_progress (win);
2087         }
2088
2089         return dimmed;
2090 }
2091
2092 #ifdef MODEST_TOOLKIT_HILDON2
2093 gboolean
2094 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
2095 {
2096         GSList *recipients = NULL;
2097         gboolean has_recipients_to_add;
2098
2099         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2100
2101         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2102                 TnyMsg *msg;
2103
2104                 msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2105
2106                 /* Message is loaded asynchronously, so this could happen */
2107                 if (!msg) {
2108                         TnyHeader *header;
2109
2110                         header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW (win));
2111                         if (!header)
2112                                 return TRUE;
2113
2114                         recipients = modest_tny_msg_header_get_all_recipients_list (header);
2115                         g_object_unref (header);
2116                 } else {
2117                         recipients = modest_tny_msg_get_all_recipients_list (msg);
2118                         g_object_unref (msg);
2119                 }
2120         } else if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
2121                 /* Check if there are pending addresses to add */
2122                 return !modest_msg_edit_window_has_pending_addresses ((ModestMsgEditWindow *) win);
2123         }
2124
2125         has_recipients_to_add = FALSE;
2126
2127         if (recipients) {
2128                 GSList *node;
2129                 for (node = recipients; node != NULL; node = g_slist_next (node)) {
2130                         const gchar *recipient = (const gchar *) node->data;
2131                         if (modest_text_utils_validate_recipient (recipient, NULL)) {
2132                                 if (!modest_address_book_has_address (recipient)) {
2133                                         has_recipients_to_add = TRUE;
2134                                         break;
2135                                 }
2136                         }
2137                 }
2138                 g_slist_foreach (recipients, (GFunc) g_free, NULL);
2139                 g_slist_free (recipients);
2140         }
2141
2142         return !has_recipients_to_add;
2143 }
2144 #else
2145 gboolean
2146 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
2147 {
2148         ModestDimmingRule *rule = NULL;
2149         gboolean dimmed = FALSE;
2150         GtkWidget *focused = NULL;
2151
2152         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2153         rule = MODEST_DIMMING_RULE (user_data);
2154         focused = gtk_window_get_focus (GTK_WINDOW (win));
2155
2156         dimmed = !focused;
2157
2158         if (!dimmed) {
2159                 gchar *selection = NULL;
2160                 if (GTK_IS_TEXT_VIEW (focused)) {
2161                         GtkTextIter start, end;
2162                         GtkTextBuffer *buffer = NULL;
2163                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2164                         if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end)) {
2165                                 selection = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
2166                         }
2167                 } else if (GTK_IS_LABEL (focused)) {
2168                         selection = modest_text_utils_label_get_selection (GTK_LABEL (focused));
2169                 } else {
2170                         gboolean do_check = TRUE;
2171                         GtkClipboard *clipboard;
2172                         if (GTK_IS_HTML (focused)) {
2173                                 const gchar *sel;
2174                                 int len = -1;
2175                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
2176                                 do_check = !((sel == NULL) || (sel[0] == '\0'));
2177                         } else if (MODEST_IS_ATTACHMENTS_VIEW (focused)) {
2178                                 do_check = FALSE;
2179                         }
2180                         if (do_check) {
2181                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
2182                                 selection = gtk_clipboard_wait_for_text (clipboard);
2183                         } else {
2184                                 selection = NULL;
2185                         }
2186                 }
2187                 dimmed = !((selection != NULL) && (modest_text_utils_validate_recipient (selection, NULL)));
2188         }
2189
2190         return dimmed;
2191 }
2192 #endif
2193
2194 /* *********************** static utility functions ******************** */
2195
2196
2197 static gboolean
2198 _selected_folder_not_writeable (ModestMainWindow *win,
2199                                 gboolean for_paste)
2200 {
2201         GtkWidget *folder_view = NULL;
2202         TnyFolderStore *parent_folder = NULL;
2203         ModestEmailClipboard *clipboard = NULL;
2204         ModestTnyFolderRules rules;
2205         gboolean is_local_acc = FALSE;
2206         gboolean xfer_folders = FALSE;
2207         gboolean result = FALSE;
2208
2209         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2210
2211         /* Get folder view */
2212         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2213                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2214         /* If no folder view, always dimmed */
2215         if (!folder_view)
2216                 return TRUE;
2217
2218         /* Get selected folder as parent of new folder to create */
2219         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2220         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2221                 /* If it's the local account and its transfering folders, then do not dim */
2222                 if (TNY_IS_ACCOUNT (parent_folder)) {
2223                         is_local_acc = modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder));
2224                         if (for_paste) {
2225                                 clipboard = modest_runtime_get_email_clipboard ();
2226                                 xfer_folders = modest_email_clipboard_folder_copied (clipboard);
2227                         }
2228                 }
2229
2230                 if (for_paste)
2231                         result = !(is_local_acc && xfer_folders);
2232                 else
2233                         result = !is_local_acc;
2234                 goto frees;
2235         }
2236
2237         /* Check dimmed rule */
2238         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2239         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
2240
2241         /* free */
2242  frees:
2243         if (parent_folder != NULL)
2244                 g_object_unref (parent_folder);
2245
2246         return result;
2247 }
2248
2249 static gboolean
2250 _selected_folder_not_deletable (ModestMainWindow *win)
2251 {
2252         GtkWidget *folder_view = NULL;
2253         TnyFolderStore *parent_folder = NULL;
2254         ModestTnyFolderRules rules;
2255         gboolean result = FALSE;
2256
2257         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2258
2259         /* Get folder view */
2260         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2261                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2262         /* If no folder view, always dimmed */
2263         if (!folder_view)
2264                 return TRUE;
2265
2266         /* Get selected folder as parent of new folder to create */
2267         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2268         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2269                 result = TRUE;
2270                 goto frees;
2271         }
2272
2273         /* Check dimmed rule */
2274         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2275         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_DELETABLE;
2276
2277         /* free */
2278  frees:
2279         if (parent_folder != NULL)
2280                 g_object_unref (parent_folder);
2281
2282         return result;
2283 }
2284
2285 static gboolean
2286 _selected_folder_not_moveable (ModestMainWindow *win)
2287 {
2288         GtkWidget *folder_view = NULL;
2289         TnyFolderStore *parent_folder = NULL;
2290         ModestTnyFolderRules rules;
2291         gboolean result = FALSE;
2292
2293         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2294
2295         /* Get folder view */
2296         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2297                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2298         /* If no folder view, always dimmed */
2299         if (!folder_view)
2300                 return TRUE;
2301
2302         /* Get selected folder as parent of new folder to create */
2303         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2304         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2305                 result = TRUE;
2306                 goto frees;
2307         }
2308
2309         /* Check dimmed rule */
2310         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2311         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE;
2312
2313         /* free */
2314  frees:
2315         if (parent_folder != NULL)
2316                 g_object_unref (parent_folder);
2317
2318         return result;
2319 }
2320
2321 static gboolean
2322 _selected_folder_not_renameable (ModestMainWindow *win)
2323 {
2324         GtkWidget *folder_view = NULL;
2325         TnyFolderStore *parent_folder = NULL;
2326         ModestTnyFolderRules rules;
2327         gboolean result = FALSE;
2328
2329         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2330
2331         /* Get folder view */
2332         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2333                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2334         /* If no folder view, always dimmed */
2335         if (!folder_view)
2336                 return TRUE;
2337
2338         /* Get selected folder as parent of new folder to create */
2339         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2340         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2341                 result = TRUE;
2342                 goto frees;
2343         }
2344
2345         /* Check dimmed rule */
2346         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2347         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_RENAMEABLE;
2348
2349         /* free */
2350  frees:
2351         if (parent_folder != NULL)
2352                 g_object_unref (parent_folder);
2353
2354         return result;
2355 }
2356
2357 static gboolean
2358 _selected_folder_is_root_or_inbox (ModestMainWindow *win)
2359 {
2360         TnyFolderType types[2];
2361         gboolean result = FALSE;
2362
2363         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2364
2365         types[0] = TNY_FOLDER_TYPE_ROOT;
2366         types[1] = TNY_FOLDER_TYPE_INBOX;
2367
2368         /* Check folder type */
2369         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 2);
2370
2371         /* Check pop and MMC accounts */
2372         if (!result) {
2373                 result = _selected_folder_is_root (win);
2374         }
2375
2376         return result;
2377 }
2378
2379
2380 static gboolean
2381 _selected_folder_is_root (ModestMainWindow *win)
2382 {
2383         TnyFolderType types[1];
2384         gboolean result = FALSE;
2385
2386         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2387
2388         /* All accounts are root items: */
2389         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2390                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2391         if (folder_view) {
2392                 gboolean is_account = FALSE;
2393                 TnyFolderStore *folder_store =
2394                         modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2395                 if (folder_store) {
2396                         is_account = TNY_IS_ACCOUNT (folder_store);
2397
2398                         g_object_unref (folder_store);
2399                         folder_store = NULL;
2400                 }
2401
2402                 if (is_account)
2403                         return TRUE;
2404         }
2405
2406         /* Try something more precise: */
2407         types[0] = TNY_FOLDER_TYPE_ROOT;
2408
2409         /* Check folder type */
2410         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 1);
2411
2412         return result;
2413 }
2414
2415 static gboolean
2416 _header_view_is_all_selected (ModestMainWindow *win)
2417 {
2418         const DimmedState *state = NULL;
2419
2420         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2421
2422         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2423
2424         return (state) ? state->all_selected : TRUE;
2425 }
2426
2427 static gboolean
2428 _selected_folder_is_empty (ModestMainWindow *win)
2429 {
2430         GtkWidget *folder_view = NULL, *header_view = NULL;
2431         TnyFolderStore *folder = NULL;
2432         gboolean result = FALSE;
2433
2434         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2435
2436         /* Get folder view */
2437         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2438                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2439
2440         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2441                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
2442
2443         /* If no folder view, always dimmed */
2444         if (!folder_view || !header_view)
2445                 return TRUE;
2446
2447         /* Get selected folder as parent of new folder to create */
2448         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2449         if (!(folder && TNY_IS_FOLDER(folder))) {
2450                 if (folder)
2451                         g_object_unref (folder);
2452                 return TRUE;
2453         }
2454
2455         /* Check folder type */
2456         if (modest_header_view_is_empty (MODEST_HEADER_VIEW (header_view)) ||
2457             tny_folder_get_all_count (TNY_FOLDER (folder)) == 0)
2458                 result = TRUE;
2459
2460         /* free */
2461         g_object_unref (folder);
2462
2463         return result;
2464 }
2465
2466 static gboolean
2467 _folder_view_has_focus (ModestWindow *win)
2468 {
2469         GtkWidget *folder_view = NULL;
2470
2471         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2472
2473         /* Get folder view */
2474         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2475                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2476         if (!folder_view)
2477                 return FALSE;
2478
2479         if (gtk_widget_is_focus(folder_view))
2480                 return TRUE;
2481
2482         return FALSE;
2483 }
2484
2485 static gboolean
2486 _selected_folder_is_same_as_source (ModestWindow *win)
2487 {
2488         ModestEmailClipboard *clipboard = NULL;
2489         GtkWidget *folder_view = NULL;
2490         TnyFolderStore *folder = NULL;
2491         gboolean result = FALSE;
2492
2493         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2494
2495         /* Get folder view */
2496         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2497                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2498         if (!folder_view)
2499                 return FALSE;
2500
2501         /* Get selected folder as destination folder */
2502         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2503         if (!(folder && TNY_IS_FOLDER(folder))) {
2504                 result = FALSE;
2505                 goto frees;
2506         }
2507
2508         /* Check clipboard is cleared */
2509         clipboard = modest_runtime_get_email_clipboard ();
2510         if (modest_email_clipboard_cleared (clipboard)) {
2511                 result = FALSE;
2512                 goto frees;
2513         }
2514
2515         /* Check source folder */
2516         result = modest_email_clipboard_check_source_folder (clipboard, TNY_FOLDER (folder));
2517
2518         /* Free */
2519  frees:
2520         g_object_unref (folder);
2521
2522         return result;
2523 }
2524
2525 static gboolean
2526 _selected_folder_is_any_of_type (ModestWindow *win,
2527                                  TnyFolderType types[],
2528                                  guint ntypes)
2529 {
2530         GtkWidget *folder_view = NULL;
2531         TnyFolderStore *folder = NULL;
2532         TnyFolderType folder_type;
2533         guint i=0;
2534         gboolean result = FALSE;
2535
2536         /*Get current folder */
2537         if (MODEST_IS_MAIN_WINDOW(win)) {
2538
2539                 /* Get folder view */
2540                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2541                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2542                 /* If no folder view, always dimmed */
2543                 if (!folder_view)
2544                         return FALSE;
2545
2546                 /* Get selected folder as parent of new folder to create */
2547                 folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2548
2549                 if (!(folder && TNY_IS_FOLDER(folder))) {
2550                         if (folder)
2551                                 g_object_unref (folder);
2552                         return FALSE;
2553                 }
2554
2555                 /* Check folder type */
2556                 result = _folder_is_any_of_type (TNY_FOLDER(folder), types, ntypes);
2557         }
2558         else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2559                 folder_type = modest_msg_view_window_get_folder_type (MODEST_MSG_VIEW_WINDOW (win));
2560                 for (i=0; i < ntypes; i++) {
2561                         result = result || folder_type == types[i];
2562                 }
2563         }
2564
2565
2566         /* free */
2567         if (folder)
2568                 g_object_unref (folder);
2569
2570         return result;
2571 }
2572
2573 static gboolean
2574 _folder_is_any_of_type (TnyFolder *folder,
2575                         TnyFolderType types[],
2576                         guint ntypes)
2577 {
2578         TnyFolderType folder_type;
2579         gboolean result = FALSE;
2580         guint i;
2581
2582         g_return_val_if_fail (TNY_IS_FOLDER(folder), FALSE);
2583
2584         /* Get folder type */
2585         folder_type = modest_tny_folder_guess_folder_type (folder);
2586         if (folder_type == TNY_FOLDER_TYPE_INVALID)
2587                 g_warning ("%s: BUG: TNY_FOLDER_TYPE_INVALID", __FUNCTION__);
2588
2589         /* Check foler type */
2590         for (i=0; i < ntypes; i++) {
2591                 result = result || folder_type == types[i];
2592         }
2593
2594         return result;
2595 }
2596
2597 static gboolean
2598 _clipboard_is_empty (ModestWindow *win)
2599 {
2600         gboolean result = FALSE;
2601
2602         if (MODEST_IS_MAIN_WINDOW (win)) {
2603                 ModestEmailClipboard *clipboard = NULL;
2604                 clipboard = modest_runtime_get_email_clipboard ();
2605                 if (modest_email_clipboard_cleared (clipboard))
2606                  result = TRUE;
2607         }
2608
2609         return result;
2610 }
2611
2612 static gboolean
2613 _invalid_clipboard_selected (ModestWindow *win,
2614                              ModestDimmingRule *rule)
2615 {
2616         gboolean result = FALSE;
2617         GtkWidget *focused = NULL;
2618
2619         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2620
2621         /* Get focuesed widget */
2622         focused = gtk_window_get_focus (GTK_WINDOW (win));
2623
2624         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
2625                 gboolean has_selection = FALSE;
2626                 if (GTK_IS_TEXT_VIEW (focused)) {
2627                         GtkTextBuffer *buffer = NULL;
2628                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2629                         has_selection = modest_text_utils_buffer_selection_is_valid (buffer);
2630                 } else if (GTK_IS_EDITABLE (focused)) {
2631                         has_selection = gtk_editable_get_selection_bounds (GTK_EDITABLE (focused), NULL, NULL);
2632                 }
2633                 result = !has_selection;
2634         } else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2635                 if (focused) {
2636                         MODEST_DEBUG_BLOCK (g_debug ("FOCUSED %s", g_type_name (G_TYPE_FROM_INSTANCE (focused))););
2637                         if (GTK_IS_LABEL (focused) &&
2638                             !gtk_label_get_selection_bounds (GTK_LABEL (focused), NULL, NULL)) {
2639                                 result = TRUE;
2640                         } else if (GTK_IS_TEXT_VIEW (focused)) {
2641                                 GtkTextBuffer *buffer;
2642                                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2643                                 result = !gtk_text_buffer_get_has_selection (buffer);
2644                         } else if (GTK_IS_HTML (focused)) {
2645                                 const gchar *sel;
2646                                 int len = -1;
2647                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
2648                                 result = ((sel == NULL) || (sel[0] == '\0'));
2649                         } else if (MODEST_IS_ATTACHMENTS_VIEW (focused)) {
2650                                 result = TRUE;
2651                         } else {
2652                                 GtkClipboard *clipboard;
2653                                 gchar *selection;
2654
2655                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
2656                                 /* Get clipboard selection*/
2657                                 selection = gtk_clipboard_wait_for_text (clipboard);
2658                                 /* Check dimming */
2659                                 result = (selection == NULL);
2660                                 g_free (selection);
2661                         }
2662                 } else {
2663                         result = TRUE;
2664                 }
2665
2666                 if (result)
2667                         modest_dimming_rule_set_notification (rule, "");
2668
2669         }
2670         else if (MODEST_IS_MAIN_WINDOW (win)) {
2671                 const DimmedState *state = NULL;
2672
2673                 /* Check dimming */
2674                 state = modest_window_get_dimming_state (win);
2675                 if (state)
2676                         result = state->n_selected == 0;
2677                 if (result)
2678                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2679         }
2680
2681         return result;
2682 }
2683
2684
2685 static gboolean
2686 _invalid_attach_selected (ModestWindow *win,
2687                           gboolean unique,
2688                           gboolean for_view,
2689                           gboolean for_remove,
2690                           ModestDimmingRule *rule)
2691 {
2692         TnyList *attachments;
2693         gint n_selected;
2694         TnyHeaderFlags flags;
2695         gboolean nested_attachments = FALSE;
2696         gboolean selected_messages = FALSE;
2697         gboolean result = FALSE;
2698
2699         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2700
2701         if (MODEST_IS_MAIN_WINDOW (win)) {
2702                 flags = TNY_HEADER_FLAG_ATTACHMENTS;
2703                 if (!result) {
2704                         const DimmedState *state = NULL;
2705                         state = modest_window_get_dimming_state (win);
2706                         result = !state->any_has_attachments;
2707                 }
2708         }
2709         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2710
2711                 /* Get selected atachments */
2712                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2713                 n_selected = tny_list_get_length (attachments);
2714
2715                 /* Check unique */
2716                 if (!result) {
2717                         if (unique)
2718                                 result = n_selected != 1;
2719                         else
2720
2721                                 result = n_selected < 1;
2722                 }
2723
2724                 /* Check attached type (view operation not required) */
2725                 if (!result && !for_view)  {
2726                         TnyIterator *iter;
2727                         iter = tny_list_create_iterator (attachments);
2728                         while (!tny_iterator_is_done (iter) && !result) {
2729 #ifdef MODEST_TOOLKIT_HILDON2
2730                                 gboolean not_selectable = FALSE;
2731 #endif
2732                                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2733                                 TnyList *nested_list = tny_simple_list_new ();
2734                                 tny_mime_part_get_parts (mime_part, nested_list);
2735
2736                                 if (!for_remove && modest_tny_mime_part_is_msg (mime_part)) {
2737                                         TnyMsg *window_msg;
2738                                         window_msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2739                                         if ((TnyMimePart *) window_msg != mime_part) {
2740                                                 selected_messages = TRUE;
2741 #ifdef MODEST_TOOLKIT_HILDON2
2742                                                 not_selectable = TRUE;
2743 #else
2744                                                 result = TRUE;
2745 #endif
2746                                         }
2747                                         g_object_unref (window_msg);
2748                                 }
2749                                 if (!for_remove && tny_list_get_length (nested_list) > 0) {
2750                                         nested_attachments = TRUE;
2751 #ifdef MODEST_TOOLKIT_HILDON2
2752                                         not_selectable = TRUE;
2753 #else
2754                                         result = TRUE;
2755 #endif
2756                                 }
2757 #ifdef MODEST_TOOLKIT_HILDON2
2758                                 if (not_selectable)
2759                                         n_selected --;
2760 #endif
2761                                 g_object_unref (nested_list);
2762                                 g_object_unref (mime_part);
2763                                 tny_iterator_next (iter);
2764                         }
2765                         g_object_unref (iter);
2766                 }
2767
2768                 /* No valid attachment available */
2769                 if (n_selected == 0)
2770                         result = TRUE;
2771
2772                 /* Set notifications */
2773                 if (result && rule != NULL) {
2774                         if (selected_messages) {
2775                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_save_attach_mail"));
2776                         } else if (nested_attachments) {
2777                                 modest_dimming_rule_set_notification (rule, _("FIXME:unable to save attachments with nested elements"));
2778                         } else if (n_selected == 0) {
2779                                 modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
2780                         } else if (unique) {
2781                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_display_more"));
2782                         }
2783                 }
2784
2785                 /* Free */
2786                 g_object_unref (attachments);
2787         }
2788
2789         return result;
2790 }
2791
2792 static gboolean
2793 _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule)
2794 {
2795         TnyList *attachments = NULL;
2796         TnyIterator *iter;
2797         gint purged = 0;
2798         gint n_attachments = 0;
2799         gboolean result = FALSE;
2800
2801         /* This should check if _all_ the attachments are already purged. If only some
2802          * of them are purged, then it does not cause dim as there's a confirmation dialog
2803          * for removing only local attachments */
2804
2805         /* Get selected atachments */
2806         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2807                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2808         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2809                 /* If we're in main window, we won't know if there are already purged attachments */
2810                 return FALSE;
2811         }
2812
2813         if (attachments == NULL)
2814                 return FALSE;
2815
2816         if (tny_list_get_length (attachments) == 0) {
2817                 g_object_unref (attachments);
2818                 return FALSE;
2819         }
2820
2821         iter = tny_list_create_iterator (attachments);
2822         while (!tny_iterator_is_done (iter)) {
2823                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2824                 if (tny_mime_part_is_purged (mime_part)) {
2825                         purged++;
2826                 }
2827                 n_attachments++;
2828                 g_object_unref (mime_part);
2829                 tny_iterator_next (iter);
2830         }
2831         g_object_unref (iter);
2832
2833         /* Free */
2834         g_object_unref (attachments);
2835
2836         if (all)
2837                 result = (purged == n_attachments);
2838         else
2839                 result = (purged > 0);
2840
2841         /* This string no longer exists, refer to NB#75415 for more info
2842         if (result && (rule != NULL))
2843                 modest_dimming_rule_set_notification (rule, _("mail_ib_attachment_already_purged"));
2844         */
2845
2846         return result;
2847 }
2848
2849 static gboolean
2850 _invalid_msg_selected (ModestMainWindow *win,
2851                        gboolean unique,
2852                        ModestDimmingRule *rule)
2853 {
2854         GtkWidget *folder_view = NULL;
2855         const DimmedState *state = NULL;
2856         gboolean result = FALSE;
2857         gint n_selected = 0;
2858
2859         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2860         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (rule), FALSE);
2861
2862         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2863         if (state)
2864                 n_selected = state->n_selected;
2865
2866         /* Get folder view to check focus */
2867         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2868                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2869
2870         /* Check dimmed rule (TODO: check focus on widgets */
2871         if (!result) {
2872                 result = ((n_selected == 0 ) ||
2873                           (gtk_widget_is_focus (folder_view)));
2874                 if (result)
2875                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2876         }
2877         if (!result && unique) {
2878                 result = n_selected > 1;
2879                 if (result)
2880                         modest_dimming_rule_set_notification (rule, _("mcen_ib_select_one_message"));
2881         }
2882
2883         return result;
2884 }
2885
2886
2887 static gboolean
2888 _msg_download_in_progress (ModestWindow *win)
2889 {
2890         gboolean result = FALSE;
2891
2892         g_return_val_if_fail (MODEST_IS_WINDOW (win), FALSE);
2893
2894         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2895                 result = modest_msg_view_window_toolbar_on_transfer_mode (MODEST_MSG_VIEW_WINDOW(win));
2896         }
2897         else if (MODEST_IS_MAIN_WINDOW (win)) {
2898                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW(win));
2899         }
2900
2901         return result;
2902 }
2903
2904 static gboolean
2905 _msg_download_completed (ModestMainWindow *win)
2906 {
2907         const DimmedState *state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2908         return (state) ? state->any_marked_as_cached : TRUE;
2909 }
2910
2911 static void
2912 fill_list_of_caches (gpointer key, gpointer value, gpointer userdata)
2913 {
2914         GSList **send_queues = (GSList **) userdata;
2915         *send_queues = g_slist_prepend (*send_queues, value);
2916 }
2917
2918 static gboolean
2919 _selected_msg_sent_in_progress (ModestWindow *win)
2920 {
2921         const DimmedState *state = modest_window_get_dimming_state (win);
2922         return (state) ? state->sent_in_progress : TRUE;
2923 }
2924
2925
2926 static gboolean
2927 _invalid_folder_for_purge (ModestWindow *win,
2928                            ModestDimmingRule *rule)
2929 {
2930         TnyFolder *folder = NULL;
2931         TnyAccount *account = NULL;
2932         gboolean result = FALSE;
2933
2934         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2935
2936                 /* Get folder and account of message */
2937                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2938                 g_return_val_if_fail(msg != NULL, TRUE);
2939                 folder = tny_msg_get_folder (msg);
2940                 g_object_unref (msg);
2941                 if (folder == NULL) {
2942                         result = TRUE;
2943                         goto frees;
2944                 }
2945         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2946                 GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2947                                                                               MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2948                 if (!folder_view)
2949                         return FALSE;
2950                 folder = (TnyFolder *) modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
2951                 /* Could be a folder store */
2952                 if (folder == NULL || ! TNY_IS_FOLDER (folder))
2953                         goto frees;
2954         } else {
2955                 g_return_val_if_reached (FALSE);
2956         }
2957         account = modest_tny_folder_get_account (folder);
2958         if (account == NULL) goto frees;
2959
2960         /* Check account */
2961         if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (account))) {
2962                 TnyFolderType types[2];
2963                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
2964                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
2965
2966                 if (_selected_folder_is_any_of_type (win, types, 2)) {
2967                         result = TRUE;
2968                 }
2969         } else {
2970                 ModestProtocolType protocol_type = modest_tny_account_get_protocol_type (TNY_ACCOUNT (account));
2971                 /* If it's a remote folder then dim */
2972                 if (modest_protocol_registry_protocol_type_has_tag (modest_runtime_get_protocol_registry (),
2973                                                                     protocol_type,
2974                                                                     MODEST_PROTOCOL_REGISTRY_REMOTE_STORE_PROTOCOLS)) {
2975                         result = TRUE;
2976                 }
2977         }
2978
2979 frees:
2980         if (folder != NULL)
2981                 g_object_unref (folder);
2982         if (account != NULL)
2983                 g_object_unref (account);
2984
2985         return result;
2986 }
2987
2988 static gboolean
2989 _transfer_mode_enabled (ModestWindow *win)
2990 {
2991         gboolean result = FALSE;
2992
2993         /* Check dimming */
2994         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2995                 result = modest_msg_view_window_transfer_mode_enabled (MODEST_MSG_VIEW_WINDOW (win));
2996         } else if (MODEST_IS_MAIN_WINDOW(win)) {
2997                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW (win));
2998 #ifdef MODEST_TOOLKIT_HILDON2
2999         } else if (MODEST_IS_FOLDER_WINDOW (win)) {
3000                 result = modest_folder_window_transfer_mode_enabled (MODEST_FOLDER_WINDOW (win));
3001         } else if (MODEST_IS_HEADER_WINDOW (win)) {
3002                 result = modest_header_window_transfer_mode_enabled (MODEST_HEADER_WINDOW (win));
3003 #endif
3004         } else {
3005                 g_warning("_transfer_mode_enabled called with wrong window type");
3006         }
3007
3008         return result;
3009 }
3010
3011 static gboolean
3012 _selected_folder_has_subfolder_with_same_name (ModestWindow *win)
3013 {
3014         GtkWidget *folder_view = NULL;
3015         TnyFolderStore *folder = NULL;
3016         ModestEmailClipboard *clipboard = NULL;
3017         const gchar *folder_name = NULL;
3018         gboolean result = FALSE;
3019
3020         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
3021
3022         /*Get current parent folder */
3023         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
3024                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
3025         /* If no folder view, always dimmed */
3026         if (!folder_view) return FALSE;
3027
3028         /* Get selected folder as parent of new folder to create */
3029         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
3030         if (!(folder && TNY_IS_FOLDER(folder))) goto frees;
3031
3032         /* get modest clipboard and source folder */
3033         clipboard = modest_runtime_get_email_clipboard ();
3034         folder_name = modest_email_clipboard_get_folder_name (clipboard);
3035         if (folder_name == NULL) goto frees;
3036
3037         /* Check source subfolders names */
3038         result = modest_tny_folder_has_subfolder_with_name (folder, folder_name,
3039                                                             TRUE);
3040
3041         /* Free */
3042  frees:
3043         if (folder != NULL)
3044                 g_object_unref (folder);
3045
3046
3047         return result;
3048 }
3049
3050 static gboolean
3051 _all_msgs_in_sending_status (ModestHeaderView *header_view)
3052 {
3053         GtkTreeModel *model;
3054         GtkTreeIter iter;
3055         gboolean all_sending = TRUE;
3056
3057         model = gtk_tree_view_get_model (GTK_TREE_VIEW (header_view));
3058         if (gtk_tree_model_get_iter_first (model, &iter)) {
3059                 do {
3060                         TnyHeader *header;
3061
3062                         gtk_tree_model_get (model, &iter,
3063                                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
3064                                             &header,
3065                                             -1);
3066
3067                         if (header) {
3068                                 if (modest_tny_all_send_queues_get_msg_status (header) !=
3069                                     MODEST_TNY_SEND_QUEUE_SENDING)
3070                                         all_sending = FALSE;
3071                                 g_object_unref (header);
3072                         }
3073
3074                 } while (all_sending && gtk_tree_model_iter_next (model, &iter));
3075         }
3076         return all_sending;
3077 }
3078
3079 gboolean
3080 modest_ui_dimming_rules_on_save_to_drafts (ModestWindow *win,
3081                                            gpointer user_data)
3082 {
3083         ModestDimmingRule *rule = NULL;
3084
3085         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
3086         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3087         rule = MODEST_DIMMING_RULE (user_data);
3088
3089         /* Check dimmed rule */
3090         return !modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (win));
3091 }
3092
3093 gboolean
3094 modest_ui_dimming_rules_on_insert_image (ModestWindow *win,
3095                                          gpointer user_data)
3096 {
3097         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
3098
3099         ModestMsgEditFormat format =
3100           modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
3101
3102         return (format != MODEST_MSG_EDIT_FORMAT_HTML);
3103 }
3104
3105 static gboolean
3106 _send_receive_in_progress (ModestWindow *win)
3107 {
3108         ModestMailOperationQueue *queue;
3109         GSList *op_list, *node;
3110         gboolean found_send_receive;
3111
3112         queue = modest_runtime_get_mail_operation_queue ();
3113         op_list = modest_mail_operation_queue_get_by_source (queue, G_OBJECT (win));
3114
3115         found_send_receive = FALSE;
3116         for (node = op_list; node != NULL; node = g_slist_next (node)) {
3117                 ModestMailOperation *op;
3118
3119                 op = (ModestMailOperation *) node->data;
3120                 if (modest_mail_operation_get_type_operation (op) == MODEST_MAIL_OPERATION_TYPE_SEND_AND_RECEIVE) {
3121                         found_send_receive = TRUE;
3122                         break;
3123                 }
3124         }
3125
3126         if (op_list) {
3127                 g_slist_foreach (op_list, (GFunc) g_object_unref, NULL);
3128                 g_slist_free (op_list);
3129         }
3130
3131         return found_send_receive;
3132 }
3133
3134 static gboolean
3135 _msgs_send_in_progress (void)
3136 {
3137         ModestCacheMgr *cache_mgr;
3138         GHashTable *send_queue_cache;
3139         ModestTnySendQueue *send_queue;
3140         GSList *send_queues = NULL, *node = NULL;
3141         gboolean found = FALSE;
3142
3143         cache_mgr = modest_runtime_get_cache_mgr ();
3144         send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
3145                                                        MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
3146
3147         g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
3148
3149         for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
3150                 send_queue = MODEST_TNY_SEND_QUEUE (node->data);
3151
3152                 /* Check if msg uid is being processed inside send queue */
3153                 if (modest_tny_send_queue_sending_in_progress (send_queue)) {
3154                         found = TRUE;
3155                         break;
3156                 }
3157         }
3158
3159         g_slist_free (send_queues);
3160
3161         return found;
3162 }
3163
3164 /*****************************************************************************/
3165 /********************** HILDON2 only dimming rules ***************************/
3166 /*****************************************************************************/
3167
3168 #ifdef MODEST_TOOLKIT_HILDON2
3169 gboolean
3170 modest_ui_dimming_rules_on_header_window_move_to (ModestWindow *win, gpointer user_data)
3171 {
3172         ModestDimmingRule *rule = NULL;
3173         gboolean dimmed = FALSE;
3174
3175         g_return_val_if_fail (MODEST_IS_HEADER_WINDOW(win), FALSE);
3176         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3177         rule = MODEST_DIMMING_RULE (user_data);
3178
3179         /* Check dimmed rule */
3180         dimmed = _transfer_mode_enabled (win);
3181         if (dimmed)
3182                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
3183
3184         if (!dimmed)
3185                 dimmed = _forbid_outgoing_xfers (win);
3186
3187         if (!dimmed) {
3188                 GtkWidget *header_view;
3189                 TnyFolder *folder;
3190
3191                 header_view = GTK_WIDGET (modest_header_window_get_header_view (MODEST_HEADER_WINDOW (win)));
3192                 folder = modest_header_view_get_folder (MODEST_HEADER_VIEW (header_view));
3193                 if (folder) {
3194                         dimmed = (tny_folder_get_all_count (TNY_FOLDER (folder)) == 0) ||
3195                                 modest_header_view_is_empty (MODEST_HEADER_VIEW (header_view));
3196
3197                         if (!dimmed &&
3198                             (tny_folder_get_folder_type (TNY_FOLDER (folder)) == TNY_FOLDER_TYPE_OUTBOX)) {
3199                                 dimmed = _all_msgs_in_sending_status (MODEST_HEADER_VIEW (header_view));;
3200                         }
3201                         g_object_unref (folder);
3202                 }
3203         }
3204
3205         return dimmed;
3206 }
3207
3208 gboolean
3209 modest_ui_dimming_rules_on_folder_window_move_to (ModestWindow *win, gpointer user_data)
3210 {
3211         ModestDimmingRule *rule = NULL;
3212         gboolean dimmed = FALSE;
3213
3214         g_return_val_if_fail (MODEST_IS_FOLDER_WINDOW(win), FALSE);
3215         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3216         rule = MODEST_DIMMING_RULE (user_data);
3217
3218         /* Check dimmed rule */
3219         dimmed = _transfer_mode_enabled (win);
3220         if (dimmed)
3221                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
3222
3223         if (!dimmed)
3224                 dimmed = _forbid_outgoing_xfers (win);
3225
3226         if (!dimmed && MODEST_IS_FOLDER_WINDOW (win)) {
3227                 ModestFolderView *folder_view;
3228                 folder_view = modest_folder_window_get_folder_view (MODEST_FOLDER_WINDOW (win));
3229                 dimmed = !modest_folder_view_any_folder_fulfils_rules (folder_view,
3230                                                                        MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE);
3231         }
3232
3233         if (!dimmed) {
3234                 dimmed = _transfer_mode_enabled (win);
3235                 if (dimmed)
3236                         modest_dimming_rule_set_notification (rule, "");
3237         }
3238
3239         return dimmed;
3240 }
3241
3242 gboolean
3243 modest_ui_dimming_rules_on_folder_window_delete (ModestWindow *win, gpointer user_data)
3244 {
3245         ModestDimmingRule *rule = NULL;
3246         gboolean dimmed = FALSE;
3247
3248         g_return_val_if_fail (MODEST_IS_FOLDER_WINDOW(win), FALSE);
3249         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3250         rule = MODEST_DIMMING_RULE (user_data);
3251
3252         /* Check dimmed rule */
3253         dimmed = _transfer_mode_enabled (win);
3254         if (dimmed)
3255                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
3256
3257         if (MODEST_IS_FOLDER_WINDOW (win)) {
3258                 ModestFolderView *folder_view;
3259                 folder_view = modest_folder_window_get_folder_view (MODEST_FOLDER_WINDOW (win));
3260                 dimmed = !modest_folder_view_any_folder_fulfils_rules (folder_view,
3261                                                                        MODEST_FOLDER_RULES_FOLDER_NON_DELETABLE);
3262         }
3263
3264         if (!dimmed) {
3265                 dimmed = _transfer_mode_enabled (win);
3266                 if (dimmed)
3267                         modest_dimming_rule_set_notification (rule, "");
3268         }
3269
3270         return dimmed;
3271 }
3272
3273 gboolean
3274 modest_ui_dimming_rules_on_edit_accounts (ModestWindow *win, gpointer user_data)
3275 {
3276         return !modest_account_mgr_has_accounts (modest_runtime_get_account_mgr (), TRUE);
3277 }
3278 #endif