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;
1197         TnyAccount *account;
1198         gboolean dimmed = FALSE;
1199
1200         account_name = modest_window_get_active_account (window);
1201         account = modest_tny_account_store_get_server_account (modest_runtime_get_account_store (),
1202                                                                account_name,
1203                                                                TNY_ACCOUNT_TYPE_STORE);
1204
1205         if (account) {
1206                 ModestProtocolType protocol_type;
1207
1208                 protocol_type = modest_tny_account_get_protocol_type (account);
1209                 dimmed  = modest_protocol_registry_protocol_type_has_tag
1210                         (modest_runtime_get_protocol_registry (),
1211                          protocol_type,
1212                          MODEST_PROTOCOL_REGISTRY_STORE_FORBID_OUTGOING_XFERS);
1213
1214                 g_object_unref (account);
1215         }
1216         return dimmed;
1217 }
1218
1219 gboolean
1220 modest_ui_dimming_rules_on_view_window_move_to (ModestWindow *win, gpointer user_data)
1221 {
1222         ModestDimmingRule *rule = NULL;
1223         gboolean dimmed = FALSE;
1224
1225         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1226         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1227         rule = MODEST_DIMMING_RULE (user_data);
1228
1229         /* This could happen if we load the msg view window with a
1230            preview before loading the full message */
1231         TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
1232         if (!msg) {
1233                 return TRUE;
1234         } else {
1235                 g_object_unref (msg);
1236         }
1237
1238         /* Check dimmed rule */
1239         dimmed = _transfer_mode_enabled (win);
1240         if (dimmed)
1241                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1242
1243         if (!dimmed)
1244                 dimmed = _forbid_outgoing_xfers (win);
1245
1246         if (!dimmed) {
1247                 const DimmedState *state = modest_window_get_dimming_state (win);
1248                 if (state) {
1249                         dimmed = state->any_marked_as_deleted;
1250                         if (dimmed) {
1251                                 gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
1252                                 modest_dimming_rule_set_notification (rule, msg);
1253                                 g_free (msg);
1254                         }
1255                 }
1256         }
1257
1258         if (!dimmed) {
1259                 dimmed = _selected_msg_sent_in_progress (win);
1260                 if (dimmed)
1261                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_item"));
1262         }
1263
1264         /* This could happen if we're viewing a message of the outbox
1265            that has been already sent */
1266         if (!dimmed)
1267                 dimmed = _message_already_sent (MODEST_MSG_VIEW_WINDOW(win));
1268
1269         if (!dimmed) {
1270                 if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1271                         /* The move_to button should be dimmed when viewing an attachment,
1272                          * but should be enabled when viewing a message from the list,
1273                          * or when viewing a search result.
1274                          */
1275                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
1276                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
1277                         }
1278                 }
1279                 if (dimmed)
1280                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_item"));
1281         }
1282
1283         return dimmed;
1284 }
1285
1286 gboolean
1287 modest_ui_dimming_rules_on_find_in_msg (ModestWindow *win, gpointer user_data)
1288 {
1289         ModestDimmingRule *rule = NULL;
1290         gboolean dimmed = FALSE;
1291
1292         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1293         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1294         rule = MODEST_DIMMING_RULE (user_data);
1295
1296         /* This could happen if we load the msg view window with a
1297            preview before loading the full message */
1298         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1299                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
1300                 if (!msg) {
1301                         return TRUE;
1302                 } else {
1303                         g_object_unref (msg);
1304                 }
1305         }
1306
1307         /* Check dimmed rule */
1308         dimmed = _transfer_mode_enabled (win);
1309         if (dimmed)
1310                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1311
1312         return dimmed;
1313 }
1314
1315 gboolean
1316 modest_ui_dimming_rules_on_paste (ModestWindow *win, gpointer user_data)
1317 {
1318         ModestDimmingRule *rule = NULL;
1319         TnyFolderType types[3];
1320         gboolean dimmed = FALSE;
1321
1322         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1323         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1324         rule = MODEST_DIMMING_RULE (user_data);
1325
1326         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1327         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1328         types[2] = TNY_FOLDER_TYPE_SENT;
1329
1330         /* Check dimmed rule */
1331         dimmed = _clipboard_is_empty (win);
1332         if (dimmed)
1333                 modest_dimming_rule_set_notification (rule,
1334                                                       _CS("ecoc_ib_edwin_nothing_to_paste"));
1335         if (!dimmed) {
1336                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1337                 if (dimmed)
1338                         modest_dimming_rule_set_notification (rule,
1339                                                               _CS("ckct_ib_unable_to_paste_here"));
1340         }
1341         if (!dimmed) {
1342                 dimmed = !_folder_view_has_focus (win);
1343                 if (dimmed)
1344                         modest_dimming_rule_set_notification (rule,
1345                                         _CS("ckct_ib_unable_to_paste_here"));
1346         }
1347         if (!dimmed) {
1348                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win), TRUE);
1349                 if (dimmed)
1350                         modest_dimming_rule_set_notification (rule,
1351                                                               _CS("ckct_ib_unable_to_paste_here"));
1352         }
1353         if (!dimmed) {
1354                 dimmed = _selected_folder_is_same_as_source (win);
1355                 if (dimmed)
1356                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_copy_target_error"));
1357         }
1358         if (!dimmed) {
1359                 dimmed = _selected_folder_has_subfolder_with_same_name (win);
1360                 if (dimmed)
1361                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_copy_target_error"));
1362         }
1363
1364         return dimmed;
1365 }
1366
1367
1368 gboolean
1369 modest_ui_dimming_rules_on_select_all (ModestWindow *win, gpointer user_data)
1370 {
1371         ModestDimmingRule *rule = NULL;
1372         gboolean dimmed = FALSE;
1373         GtkWidget *focused = NULL;
1374
1375         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1376         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1377         rule = MODEST_DIMMING_RULE (user_data);
1378
1379         focused = gtk_window_get_focus (GTK_WINDOW (win));
1380
1381         /* Main window dimming rules */
1382         if (MODEST_IS_MAIN_WINDOW (win))
1383                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1384
1385         if (!dimmed && MODEST_IS_MAIN_WINDOW (win))
1386                 dimmed = _header_view_is_all_selected (MODEST_MAIN_WINDOW(win));
1387
1388         if (!dimmed && GTK_IS_ENTRY (focused)) {
1389                 const gchar *current_text;
1390                 current_text = gtk_entry_get_text (GTK_ENTRY (focused));
1391                 dimmed = ((current_text == NULL) || (current_text[0] == '\0'));
1392         }
1393
1394         if (!dimmed && GTK_IS_TEXT_VIEW (focused)) {
1395                 GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
1396                 dimmed = (gtk_text_buffer_get_char_count (buffer) < 1);
1397         }
1398
1399         if (dimmed && MODEST_IS_ATTACHMENTS_VIEW (focused))
1400                 dimmed = FALSE;
1401         return dimmed;
1402 }
1403
1404 gboolean
1405 modest_ui_dimming_rules_on_view_attachments (ModestWindow *win, gpointer user_data)
1406 {
1407         ModestDimmingRule *rule = NULL;
1408         gboolean dimmed = FALSE;
1409
1410         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1411         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1412         rule = MODEST_DIMMING_RULE (user_data);
1413
1414         /* Check dimmed rule */
1415         dimmed = _invalid_attach_selected (win, TRUE, TRUE, FALSE, rule);
1416
1417         if (!dimmed) {
1418                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1419                 if (dimmed) {
1420                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1421                 }
1422         }
1423
1424         return dimmed;
1425 }
1426
1427 #ifdef MODEST_TOOLKIT_HILDON2
1428 static gboolean
1429 _not_valid_attachments (ModestWindow *win, gboolean save_not_remove)
1430 {
1431         gint n_attachments;
1432         TnyList *attachments;
1433         gboolean result = FALSE;
1434
1435         /* Get atachments */
1436         attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1437         n_attachments = tny_list_get_length (attachments);
1438
1439         /* Check unique */
1440         if (!result) {
1441                 result = n_attachments < 1;
1442         }
1443
1444         /* Check attached type (view operation not required) */
1445         if (!result)  {
1446                 gint n_valid = 0;
1447
1448                 TnyIterator *iter;
1449                 iter = tny_list_create_iterator (attachments);
1450                 while (!tny_iterator_is_done (iter)) {
1451                         gboolean is_valid = TRUE;
1452                         TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
1453                         TnyList *nested_list = tny_simple_list_new ();
1454                         tny_mime_part_get_parts (mime_part, nested_list);
1455
1456                         if (tny_mime_part_is_purged (mime_part)) {
1457                                 is_valid = FALSE;
1458                         }
1459
1460                         if (is_valid && modest_tny_mime_part_is_msg (mime_part)) {
1461                                 TnyMsg *window_msg;
1462                                 window_msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
1463                                 if (window_msg) {
1464                                         if (save_not_remove && (TnyMimePart *) window_msg != mime_part) {
1465                                                 is_valid = FALSE;
1466                                         }
1467                                         g_object_unref (window_msg);
1468                                 }
1469                                 if (is_valid && save_not_remove && tny_list_get_length (nested_list) > 0) {
1470                                         is_valid = FALSE;
1471                                 }
1472                         }
1473                         g_object_unref (nested_list);
1474                         g_object_unref (mime_part);
1475                         tny_iterator_next (iter);
1476
1477                         if (is_valid)
1478                                 n_valid++;
1479                 }
1480                 g_object_unref (iter);
1481                 result = (n_valid == 0);
1482         }
1483         g_object_unref (attachments);
1484         return result;
1485
1486 }
1487 #endif
1488
1489 gboolean
1490 modest_ui_dimming_rules_on_save_attachments (ModestWindow *win, gpointer user_data)
1491 {
1492         ModestDimmingRule *rule = NULL;
1493         gboolean dimmed = FALSE;
1494
1495         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1496         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1497         rule = MODEST_DIMMING_RULE (user_data);
1498
1499         /* Check dimmed rule */
1500
1501 #ifdef MODEST_TOOLKIT_HILDON2
1502         dimmed = _not_valid_attachments (win, TRUE);
1503 #else
1504         dimmed = _invalid_attach_selected (win, FALSE, FALSE, FALSE, rule);
1505
1506         if (!dimmed) {
1507                 dimmed = _purged_attach_selected (win, TRUE, NULL);
1508                 if (dimmed) {
1509                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1510                 }
1511         }
1512 #endif
1513         return dimmed;
1514 }
1515
1516 gboolean
1517 modest_ui_dimming_rules_on_remove_attachments (ModestWindow *win, gpointer user_data)
1518 {
1519         ModestDimmingRule *rule = NULL;
1520         const DimmedState *state = NULL;
1521         gboolean dimmed = FALSE;
1522
1523         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1524         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1525         rule = MODEST_DIMMING_RULE (user_data);
1526         state = modest_window_get_dimming_state (win);
1527
1528         /* Check in main window if there's only one message selected */
1529         if (MODEST_IS_MAIN_WINDOW (win)) {
1530                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW (win), TRUE, rule);
1531         }
1532
1533         /* Check in view window if there's any attachment selected */
1534         if (!dimmed && MODEST_IS_MSG_VIEW_WINDOW (win)) {
1535                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, TRUE, NULL);
1536                 if (dimmed)
1537                         modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1538         }
1539
1540         if (!dimmed) {
1541
1542                 dimmed = _selected_msg_sent_in_progress (win);
1543                 if (dimmed) {
1544                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1545                 }
1546         }
1547
1548         /* cannot purge in editable drafts nor pop folders */
1549         if (!dimmed) {
1550                 dimmed = _invalid_folder_for_purge (win, rule);
1551                 if (dimmed)
1552                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1553         }
1554
1555         /* Check if the selected message in main window has attachments */
1556         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1557                 if (state)
1558                         dimmed = !(state->any_has_attachments);
1559                 if (dimmed)
1560                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1561         }
1562
1563         /* Check if all attachments are already purged */
1564         if (!dimmed) {
1565                 dimmed = _purged_attach_selected (win, TRUE, rule);
1566         }
1567
1568         /* Check if the message is already downloaded */
1569         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1570                 dimmed = !_msg_download_completed (MODEST_MAIN_WINDOW (win));
1571                 if (dimmed)
1572                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1573         }
1574
1575         return dimmed;
1576 }
1577
1578 gboolean
1579 modest_ui_dimming_rules_on_undo (ModestWindow *win, gpointer user_data)
1580 {
1581         ModestDimmingRule *rule = NULL;
1582         gboolean dimmed = FALSE;
1583
1584         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1585         rule = MODEST_DIMMING_RULE (user_data);
1586
1587         /* Check dimmed rule */
1588         if (MODEST_IS_MAIN_WINDOW (win)) {
1589                 dimmed = _clipboard_is_empty (win);
1590                 if (dimmed)
1591                         modest_dimming_rule_set_notification (rule, "");
1592         }
1593
1594         if (!dimmed && MODEST_IS_MSG_EDIT_WINDOW (win)) {
1595                 dimmed = !modest_msg_edit_window_can_undo (MODEST_MSG_EDIT_WINDOW (win));
1596         }
1597
1598         return dimmed;
1599 }
1600
1601 gboolean
1602 modest_ui_dimming_rules_on_redo (ModestWindow *win, gpointer user_data)
1603 {
1604         ModestDimmingRule *rule = NULL;
1605         gboolean dimmed = FALSE;
1606
1607         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1608         rule = MODEST_DIMMING_RULE (user_data);
1609
1610         /* Check dimmed rule */
1611         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
1612                 dimmed = !modest_msg_edit_window_can_redo (MODEST_MSG_EDIT_WINDOW (win));
1613         }
1614
1615         return dimmed;
1616 }
1617
1618 gboolean
1619 modest_ui_dimming_rules_on_cut (ModestWindow *win, gpointer user_data)
1620 {
1621         ModestDimmingRule *rule = NULL;
1622         const DimmedState *state = NULL;
1623         gboolean dimmed = FALSE;
1624
1625         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1626         rule = MODEST_DIMMING_RULE (user_data);
1627         state = modest_window_get_dimming_state (win);
1628
1629         /* Check common dimming rules */
1630         dimmed = _invalid_clipboard_selected (win, rule);
1631
1632         /* Check window specific dimming rules */
1633         if (MODEST_IS_MAIN_WINDOW (win)) {
1634                 /* Get focused widget */
1635                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1636
1637                 if (MODEST_IS_HEADER_VIEW (focused)) {
1638                         if (!dimmed) {
1639                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1640                                 if (dimmed)
1641                                         modest_dimming_rule_set_notification (rule, "");
1642                         }
1643                         if (!dimmed) {
1644                                 dimmed = _selected_msg_sent_in_progress (win);
1645                                 if (dimmed)
1646                                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1647                         }
1648                         if (!dimmed) {
1649                                 if (state)
1650                                         dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
1651                                 if(dimmed)
1652                                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1653                         }
1654                 }
1655                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1656                         TnyFolderType types[3];
1657
1658                         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1659                         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1660                         types[2] = TNY_FOLDER_TYPE_SENT;
1661
1662                         /* Apply folder rules */
1663                         if (!dimmed) {
1664                                 dimmed = _selected_folder_not_deletable (MODEST_MAIN_WINDOW(win));
1665                                 if (dimmed)
1666                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1667                         }
1668                         if (!dimmed) {
1669                                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
1670                                 if (dimmed)
1671                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1672                         }
1673                         if (!dimmed) {
1674                                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1675                                 if (dimmed)
1676                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1677                         }
1678                 }
1679         }
1680
1681         return dimmed;
1682 }
1683
1684 gboolean
1685 modest_ui_dimming_rules_on_copy (ModestWindow *win, gpointer user_data)
1686 {
1687         ModestDimmingRule *rule = NULL;
1688         const DimmedState *state = NULL;
1689         gboolean dimmed = FALSE;
1690
1691         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1692         rule = MODEST_DIMMING_RULE (user_data);
1693         state = modest_window_get_dimming_state (win);
1694
1695         /* Check common dimming rules */
1696         dimmed = _invalid_clipboard_selected (win, rule);
1697
1698         /* Check window specific dimming rules */
1699         if (MODEST_IS_MAIN_WINDOW (win)) {
1700                 /* Get focused widget */
1701                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1702
1703                 if (MODEST_IS_HEADER_VIEW (focused)) {
1704                         if (!dimmed) {
1705                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1706                                 if (dimmed)
1707                                         modest_dimming_rule_set_notification (rule, "");
1708                         }
1709                         if (!dimmed) {
1710                                 dimmed = _selected_msg_sent_in_progress (win);
1711                                 if (dimmed)
1712                                         modest_dimming_rule_set_notification (rule, _(""));
1713                         }
1714                         if (!dimmed) {
1715                                 if (state)
1716                                         dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
1717                                 if(dimmed)
1718                                         modest_dimming_rule_set_notification (rule, _(""));
1719                         }
1720                 }
1721                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1722                         TnyFolderType types[3];
1723
1724                         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1725                         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1726                         types[2] = TNY_FOLDER_TYPE_SENT;
1727
1728                         if (!dimmed) {
1729                                 dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
1730                                 if (dimmed)
1731                                         modest_dimming_rule_set_notification (rule, _(""));
1732                         }
1733                         if (!dimmed) {
1734                                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1735                                 if (dimmed)
1736                                         modest_dimming_rule_set_notification (rule, _(""));
1737                         }
1738                 }
1739         }
1740
1741         return dimmed;
1742 }
1743
1744 gboolean
1745 modest_ui_dimming_rules_on_set_style (ModestWindow *win, gpointer user_data)
1746 {
1747         ModestDimmingRule *rule = NULL;
1748         gboolean dimmed = FALSE;
1749
1750         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1751         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1752         rule = MODEST_DIMMING_RULE (user_data);
1753
1754         /* Check common dimming rules */
1755         ModestMsgEditFormat format;
1756         format = modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
1757
1758         dimmed = (format != MODEST_MSG_EDIT_FORMAT_HTML);
1759         if (dimmed)
1760                 modest_dimming_rule_set_notification (rule, _("mcen_ib_item_unavailable_plaintext"));
1761
1762         if (!dimmed) {
1763                 GtkWidget *body;
1764                 body = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1765                                                                 MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1766
1767                 dimmed = ((body == NULL)||(!gtk_widget_is_focus (body)));
1768                 if (dimmed)
1769                         modest_dimming_rule_set_notification (rule, _("mcen_ib_move_cursor_to_message"));
1770         }
1771
1772
1773         return dimmed;
1774 }
1775
1776 gboolean
1777 modest_ui_dimming_rules_on_zoom (ModestWindow *win, gpointer user_data)
1778 {
1779         ModestDimmingRule *rule = NULL;
1780         gboolean dimmed = FALSE;
1781
1782         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1783         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1784         rule = MODEST_DIMMING_RULE (user_data);
1785
1786         GtkWidget *body;
1787         body = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1788                                                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1789
1790         dimmed = ((body == NULL)||(!gtk_widget_is_focus (body)));
1791         if (dimmed)
1792                 modest_dimming_rule_set_notification (rule, _("mcen_ib_move_cursor_to_message"));
1793
1794         return dimmed;
1795 }
1796
1797 gboolean
1798 modest_ui_dimming_rules_on_editor_paste (ModestWindow *win, gpointer user_data)
1799 {
1800         ModestDimmingRule *rule = NULL;
1801         gboolean dimmed = FALSE;
1802         GtkWidget *focused = NULL;
1803
1804         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1805         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1806         rule = MODEST_DIMMING_RULE (user_data);
1807
1808         focused = gtk_window_get_focus (GTK_WINDOW (win));
1809
1810         dimmed = MODEST_IS_ATTACHMENTS_VIEW (focused);
1811
1812         if (!dimmed) {
1813                 dimmed = GTK_IS_TOGGLE_BUTTON (focused);
1814         }
1815
1816         if (!dimmed) {
1817                 ModestEmailClipboard *e_clipboard = modest_runtime_get_email_clipboard ();
1818                 const gchar *clipboard_text = modest_msg_edit_window_get_clipboard_text (MODEST_MSG_EDIT_WINDOW (win));
1819
1820                 dimmed = modest_email_clipboard_cleared (e_clipboard) &&
1821                   ((clipboard_text == NULL) || (clipboard_text[0] == '\0'));
1822         }
1823
1824         return dimmed;
1825 }
1826
1827 gboolean
1828 modest_ui_dimming_rules_on_editor_remove_attachment (ModestWindow *win, gpointer user_data)
1829 {
1830         ModestDimmingRule *rule = NULL;
1831         gboolean dimmed = FALSE;
1832         TnyList *selected_attachments = NULL;
1833         gint n_att_selected = 0;
1834         GtkWidget *attachments_view;
1835
1836         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1837         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1838         rule = MODEST_DIMMING_RULE (user_data);
1839
1840         attachments_view = modest_msg_edit_window_get_child_widget (
1841                                                                     MODEST_MSG_EDIT_WINDOW (win),
1842                                                                     MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_ATTACHMENTS);
1843
1844 #ifdef MODEST_TOOLKIT_HILDON2
1845         selected_attachments = modest_attachments_view_get_attachments (
1846                                                                       MODEST_ATTACHMENTS_VIEW (attachments_view));
1847 #else
1848         selected_attachments = modest_attachments_view_get_selection (
1849                                                                       MODEST_ATTACHMENTS_VIEW (attachments_view));
1850 #endif
1851         n_att_selected = tny_list_get_length (selected_attachments);
1852         g_object_unref (selected_attachments);
1853
1854         dimmed = (n_att_selected < 1);
1855
1856         return dimmed;
1857 }
1858
1859 gboolean
1860 modest_ui_dimming_rules_on_send (ModestWindow *win, gpointer user_data)
1861 {
1862         ModestDimmingRule *rule = NULL;
1863         gboolean dimmed = FALSE;
1864         GtkWidget *subject_field, *body_field;
1865         const gchar *subject = NULL;
1866
1867         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1868         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1869         rule = MODEST_DIMMING_RULE (user_data);
1870
1871         body_field = modest_msg_edit_window_get_child_widget (
1872                                                               MODEST_MSG_EDIT_WINDOW (win),
1873                                                               MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1874         subject_field = modest_msg_edit_window_get_child_widget (
1875                                                                  MODEST_MSG_EDIT_WINDOW (win),
1876                                                                  MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_SUBJECT);
1877         subject = gtk_entry_get_text (GTK_ENTRY (subject_field));
1878
1879         dimmed = (subject == NULL || subject[0] == '\0');
1880         if (dimmed)
1881                 modest_dimming_rule_set_notification (rule, _("mcen_ib_subject_not_modified"));
1882
1883         if (!dimmed) {
1884                 GtkWidget *to_field, *cc_field, *bcc_field;
1885                 GtkTextBuffer * to_buffer, *cc_buffer, *bcc_buffer;
1886                 cc_field = modest_msg_edit_window_get_child_widget (
1887                         MODEST_MSG_EDIT_WINDOW (win),
1888                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_CC);
1889                 to_field = modest_msg_edit_window_get_child_widget (
1890                         MODEST_MSG_EDIT_WINDOW (win),
1891                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_TO);
1892                 bcc_field = modest_msg_edit_window_get_child_widget (
1893                         MODEST_MSG_EDIT_WINDOW (win),
1894                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BCC);
1895                 to_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (to_field));
1896                 cc_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (cc_field));
1897                 bcc_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (bcc_field));
1898
1899                 dimmed = ((gtk_text_buffer_get_char_count (to_buffer) +
1900                            gtk_text_buffer_get_char_count (cc_buffer) +
1901                            gtk_text_buffer_get_char_count (bcc_buffer)) == 0);
1902                 if (dimmed)
1903                         modest_dimming_rule_set_notification (rule, _("mcen_ib_add_recipients_first"));
1904         }
1905
1906         return dimmed;
1907 }
1908
1909 gboolean
1910 modest_ui_dimming_rules_on_view_previous (ModestWindow *win, gpointer user_data)
1911 {
1912         ModestDimmingRule *rule = NULL;
1913         gboolean dimmed = FALSE;
1914
1915         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1916         rule = MODEST_DIMMING_RULE (user_data);
1917
1918         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1919
1920         /* Check dimmed rule */
1921         dimmed = _transfer_mode_enabled (win);
1922         if (dimmed)
1923                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1924
1925         if (!dimmed) {
1926                 dimmed = modest_msg_view_window_first_message_selected (
1927                                 MODEST_MSG_VIEW_WINDOW(win));
1928                 modest_dimming_rule_set_notification (rule, NULL);
1929         }
1930
1931         return dimmed;
1932 }
1933
1934 gboolean
1935 modest_ui_dimming_rules_on_view_next (ModestWindow *win, gpointer user_data)
1936 {
1937         ModestDimmingRule *rule = NULL;
1938         gboolean dimmed = FALSE;
1939
1940         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1941         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1942         rule = MODEST_DIMMING_RULE (user_data);
1943
1944         /* Check dimmed rule */
1945         dimmed = _transfer_mode_enabled (win);
1946         if (dimmed)
1947                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1948
1949         if (!dimmed) {
1950                 dimmed = modest_msg_view_window_last_message_selected (MODEST_MSG_VIEW_WINDOW (win));
1951                 modest_dimming_rule_set_notification (rule, NULL);
1952         }
1953
1954         return dimmed;
1955 }
1956
1957
1958 gboolean
1959 modest_ui_dimming_rules_on_tools_smtp_servers (ModestWindow *win, gpointer user_data)
1960 {
1961         gboolean dimmed;
1962         ModestAccountMgr *mgr;
1963
1964         mgr = modest_runtime_get_account_mgr();
1965         dimmed = !modest_account_mgr_has_accounts(mgr, TRUE);
1966
1967         /* Dimm it if we only have metaaccounts */
1968         if (!dimmed) {
1969                 ModestProtocolRegistry *reg = modest_runtime_get_protocol_registry ();
1970                 GSList *account_names = modest_account_mgr_account_names (mgr, TRUE);
1971
1972                 if (account_names) {
1973                         ModestProtocolType store_protocol;
1974                         gboolean found = FALSE;
1975                         GSList *iter = account_names;
1976                         const gchar *tag = MODEST_PROTOCOL_REGISTRY_MULTI_MAILBOX_PROVIDER_PROTOCOLS;
1977
1978                         while (iter && !found) {
1979                                 gchar* account_name;
1980
1981                                 account_name = (gchar *) iter->data;
1982                                 store_protocol = modest_account_mgr_get_store_protocol (mgr, account_name);
1983
1984                                 if (!modest_protocol_registry_protocol_type_has_tag (reg, store_protocol, tag))
1985                                         found = TRUE;
1986                                 else
1987                                         iter = g_slist_next (iter);
1988                         }
1989                         modest_account_mgr_free_account_names (account_names);
1990                         dimmed = !found;
1991                 }
1992         }
1993
1994         return dimmed;
1995 }
1996
1997 gboolean
1998 modest_ui_dimming_rules_on_cancel_sending (ModestWindow *win, gpointer user_data)
1999 {
2000         ModestDimmingRule *rule = NULL;
2001         TnyFolderType types[1];
2002         const DimmedState *state = NULL;
2003         gboolean dimmed = FALSE;
2004
2005         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2006         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2007         rule = MODEST_DIMMING_RULE (user_data);
2008         state = modest_window_get_dimming_state (win);
2009
2010         types[0] = TNY_FOLDER_TYPE_OUTBOX;
2011
2012         /* Check dimmed rules */
2013         dimmed = !_selected_folder_is_any_of_type (win, types, 1);
2014         if (dimmed)
2015                 modest_dimming_rule_set_notification (rule, "");
2016         if (!dimmed) {
2017                 if (state)
2018                         dimmed = !state->sent_in_progress;
2019                 if (dimmed)
2020                         modest_dimming_rule_set_notification (rule, "");
2021         }
2022
2023         return dimmed;
2024 }
2025
2026 gboolean
2027 modest_ui_dimming_rules_on_cancel_sending_all (ModestWindow *win, gpointer user_data)
2028 {
2029         /* We dim if no msg send is in progress (and then cancelling send all has no
2030          * effect */
2031         return !_msgs_send_in_progress ();
2032 }
2033
2034 gboolean
2035 modest_ui_dimming_rules_on_send_receive (ModestWindow *win, gpointer user_data)
2036 {
2037         ModestDimmingRule *rule = NULL;
2038         gboolean dimmed = FALSE;
2039         ModestAccountMgr *mgr;
2040         const gchar* account_name;
2041
2042         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2043         rule = MODEST_DIMMING_RULE (user_data);
2044         mgr = modest_runtime_get_account_mgr();
2045
2046         /* Check dimmed rule */
2047         account_name = modest_window_get_active_account (win);
2048
2049         if (account_name)
2050                 dimmed = modest_account_mgr_account_is_busy (mgr, account_name);
2051         else
2052                 dimmed = TRUE;
2053
2054         if (dimmed)
2055                 modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
2056
2057         return dimmed;
2058 }
2059
2060 gboolean
2061 modest_ui_dimming_rules_on_send_receive_all (ModestWindow *win, gpointer user_data)
2062 {
2063         ModestDimmingRule *rule = NULL;
2064         gboolean dimmed = FALSE;
2065
2066         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2067         rule = MODEST_DIMMING_RULE (user_data);
2068
2069         /* Check dimmed rule */
2070         GSList *account_names = modest_account_mgr_account_names (modest_runtime_get_account_mgr (), TRUE);
2071         if (g_slist_length (account_names) < 1)
2072                 dimmed = TRUE;
2073         if (dimmed)
2074                 modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
2075
2076         modest_account_mgr_free_account_names (account_names);
2077
2078         if (!dimmed) {
2079                 dimmed = _send_receive_in_progress (win);
2080         }
2081
2082         return dimmed;
2083 }
2084
2085 #ifdef MODEST_TOOLKIT_HILDON2
2086 gboolean
2087 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
2088 {
2089         TnyMsg *msg;
2090         GSList *recipients, *node;
2091         gboolean has_recipients_to_add;
2092
2093         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2094         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW (win), FALSE);
2095
2096         msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2097
2098         /* Message is loaded asynchronously, so this could happen */
2099         if (!msg) {
2100 #ifdef MODEST_TOOLKIT_HILDON2
2101                 TnyHeader *header;
2102
2103                 header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW (win));
2104                 if (!header)
2105                         return TRUE;
2106
2107                 recipients = modest_tny_msg_header_get_all_recipients_list (header);
2108                 g_object_unref (header);
2109 #else
2110                 return TRUE;
2111 #endif
2112         } else {
2113                 recipients = modest_tny_msg_get_all_recipients_list (msg);
2114                 g_object_unref (msg);
2115         }
2116
2117         has_recipients_to_add = FALSE;
2118         for (node = recipients; node != NULL; node = g_slist_next (node)) {
2119                 if (!modest_address_book_has_address ((const gchar *) node->data)) {
2120                         has_recipients_to_add = TRUE;
2121                         break;
2122                 }
2123         }
2124
2125         g_slist_foreach (recipients, (GFunc) g_free, NULL);
2126         g_slist_free (recipients);
2127
2128         return !has_recipients_to_add;
2129 }
2130 #else
2131 gboolean
2132 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
2133 {
2134         ModestDimmingRule *rule = NULL;
2135         gboolean dimmed = FALSE;
2136         GtkWidget *focused = NULL;
2137
2138         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2139         rule = MODEST_DIMMING_RULE (user_data);
2140         focused = gtk_window_get_focus (GTK_WINDOW (win));
2141
2142         dimmed = !focused;
2143
2144         if (!dimmed) {
2145                 gchar *selection = NULL;
2146                 if (GTK_IS_TEXT_VIEW (focused)) {
2147                         GtkTextIter start, end;
2148                         GtkTextBuffer *buffer = NULL;
2149                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2150                         if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end)) {
2151                                 selection = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
2152                         }
2153                 } else if (GTK_IS_LABEL (focused)) {
2154                         selection = modest_text_utils_label_get_selection (GTK_LABEL (focused));
2155                 } else {
2156                         gboolean do_check = TRUE;
2157                         GtkClipboard *clipboard;
2158                         if (GTK_IS_HTML (focused)) {
2159                                 const gchar *sel;
2160                                 int len = -1;
2161                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
2162                                 do_check = !((sel == NULL) || (sel[0] == '\0'));
2163                         } else if (MODEST_IS_ATTACHMENTS_VIEW (focused)) {
2164                                 do_check = FALSE;
2165                         }
2166                         if (do_check) {
2167                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
2168                                 selection = gtk_clipboard_wait_for_text (clipboard);
2169                         } else {
2170                                 selection = NULL;
2171                         }
2172                 }
2173                 dimmed = !((selection != NULL) && (modest_text_utils_validate_recipient (selection, NULL)));
2174         }
2175
2176         return dimmed;
2177 }
2178 #endif
2179
2180 /* *********************** static utility functions ******************** */
2181
2182
2183 static gboolean
2184 _selected_folder_not_writeable (ModestMainWindow *win,
2185                                 gboolean for_paste)
2186 {
2187         GtkWidget *folder_view = NULL;
2188         TnyFolderStore *parent_folder = NULL;
2189         ModestEmailClipboard *clipboard = NULL;
2190         ModestTnyFolderRules rules;
2191         gboolean is_local_acc = FALSE;
2192         gboolean xfer_folders = FALSE;
2193         gboolean result = FALSE;
2194
2195         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2196
2197         /* Get folder view */
2198         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2199                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2200         /* If no folder view, always dimmed */
2201         if (!folder_view)
2202                 return TRUE;
2203
2204         /* Get selected folder as parent of new folder to create */
2205         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2206         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2207                 /* If it's the local account and its transfering folders, then do not dim */
2208                 if (TNY_IS_ACCOUNT (parent_folder)) {
2209                         is_local_acc = modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder));
2210                         if (for_paste) {
2211                                 clipboard = modest_runtime_get_email_clipboard ();
2212                                 xfer_folders = modest_email_clipboard_folder_copied (clipboard);
2213                         }
2214                 }
2215
2216                 if (for_paste)
2217                         result = !(is_local_acc && xfer_folders);
2218                 else
2219                         result = !is_local_acc;
2220                 goto frees;
2221         }
2222
2223         /* Check dimmed rule */
2224         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2225         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
2226
2227         /* free */
2228  frees:
2229         if (parent_folder != NULL)
2230                 g_object_unref (parent_folder);
2231
2232         return result;
2233 }
2234
2235 static gboolean
2236 _selected_folder_not_deletable (ModestMainWindow *win)
2237 {
2238         GtkWidget *folder_view = NULL;
2239         TnyFolderStore *parent_folder = NULL;
2240         ModestTnyFolderRules rules;
2241         gboolean result = FALSE;
2242
2243         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2244
2245         /* Get folder view */
2246         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2247                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2248         /* If no folder view, always dimmed */
2249         if (!folder_view)
2250                 return TRUE;
2251
2252         /* Get selected folder as parent of new folder to create */
2253         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2254         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2255                 result = TRUE;
2256                 goto frees;
2257         }
2258
2259         /* Check dimmed rule */
2260         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2261         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_DELETABLE;
2262
2263         /* free */
2264  frees:
2265         if (parent_folder != NULL)
2266                 g_object_unref (parent_folder);
2267
2268         return result;
2269 }
2270
2271 static gboolean
2272 _selected_folder_not_moveable (ModestMainWindow *win)
2273 {
2274         GtkWidget *folder_view = NULL;
2275         TnyFolderStore *parent_folder = NULL;
2276         ModestTnyFolderRules rules;
2277         gboolean result = FALSE;
2278
2279         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2280
2281         /* Get folder view */
2282         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2283                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2284         /* If no folder view, always dimmed */
2285         if (!folder_view)
2286                 return TRUE;
2287
2288         /* Get selected folder as parent of new folder to create */
2289         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2290         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2291                 result = TRUE;
2292                 goto frees;
2293         }
2294
2295         /* Check dimmed rule */
2296         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2297         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE;
2298
2299         /* free */
2300  frees:
2301         if (parent_folder != NULL)
2302                 g_object_unref (parent_folder);
2303
2304         return result;
2305 }
2306
2307 static gboolean
2308 _selected_folder_not_renameable (ModestMainWindow *win)
2309 {
2310         GtkWidget *folder_view = NULL;
2311         TnyFolderStore *parent_folder = NULL;
2312         ModestTnyFolderRules rules;
2313         gboolean result = FALSE;
2314
2315         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2316
2317         /* Get folder view */
2318         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2319                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2320         /* If no folder view, always dimmed */
2321         if (!folder_view)
2322                 return TRUE;
2323
2324         /* Get selected folder as parent of new folder to create */
2325         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2326         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2327                 result = TRUE;
2328                 goto frees;
2329         }
2330
2331         /* Check dimmed rule */
2332         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2333         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_RENAMEABLE;
2334
2335         /* free */
2336  frees:
2337         if (parent_folder != NULL)
2338                 g_object_unref (parent_folder);
2339
2340         return result;
2341 }
2342
2343 static gboolean
2344 _selected_folder_is_root_or_inbox (ModestMainWindow *win)
2345 {
2346         TnyFolderType types[2];
2347         gboolean result = FALSE;
2348
2349         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2350
2351         types[0] = TNY_FOLDER_TYPE_ROOT;
2352         types[1] = TNY_FOLDER_TYPE_INBOX;
2353
2354         /* Check folder type */
2355         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 2);
2356
2357         /* Check pop and MMC accounts */
2358         if (!result) {
2359                 result = _selected_folder_is_root (win);
2360         }
2361
2362         return result;
2363 }
2364
2365
2366 static gboolean
2367 _selected_folder_is_root (ModestMainWindow *win)
2368 {
2369         TnyFolderType types[1];
2370         gboolean result = FALSE;
2371
2372         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2373
2374         /* All accounts are root items: */
2375         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2376                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2377         if (folder_view) {
2378                 gboolean is_account = FALSE;
2379                 TnyFolderStore *folder_store =
2380                         modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2381                 if (folder_store) {
2382                         is_account = TNY_IS_ACCOUNT (folder_store);
2383
2384                         g_object_unref (folder_store);
2385                         folder_store = NULL;
2386                 }
2387
2388                 if (is_account)
2389                         return TRUE;
2390         }
2391
2392         /* Try something more precise: */
2393         types[0] = TNY_FOLDER_TYPE_ROOT;
2394
2395         /* Check folder type */
2396         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 1);
2397
2398         return result;
2399 }
2400
2401 static gboolean
2402 _header_view_is_all_selected (ModestMainWindow *win)
2403 {
2404         const DimmedState *state = NULL;
2405
2406         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2407
2408         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2409
2410         return (state) ? state->all_selected : TRUE;
2411 }
2412
2413 static gboolean
2414 _selected_folder_is_empty (ModestMainWindow *win)
2415 {
2416         GtkWidget *folder_view = NULL, *header_view = NULL;
2417         TnyFolderStore *folder = NULL;
2418         gboolean result = FALSE;
2419
2420         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2421
2422         /* Get folder view */
2423         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2424                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2425
2426         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2427                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
2428
2429         /* If no folder view, always dimmed */
2430         if (!folder_view || !header_view)
2431                 return TRUE;
2432
2433         /* Get selected folder as parent of new folder to create */
2434         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2435         if (!(folder && TNY_IS_FOLDER(folder))) {
2436                 if (folder)
2437                         g_object_unref (folder);
2438                 return TRUE;
2439         }
2440
2441         /* Check folder type */
2442         if (modest_header_view_is_empty (MODEST_HEADER_VIEW (header_view)) ||
2443             tny_folder_get_all_count (TNY_FOLDER (folder)) == 0)
2444                 result = TRUE;
2445
2446         /* free */
2447         g_object_unref (folder);
2448
2449         return result;
2450 }
2451
2452 static gboolean
2453 _folder_view_has_focus (ModestWindow *win)
2454 {
2455         GtkWidget *folder_view = NULL;
2456
2457         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2458
2459         /* Get folder view */
2460         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2461                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2462         if (!folder_view)
2463                 return FALSE;
2464
2465         if (gtk_widget_is_focus(folder_view))
2466                 return TRUE;
2467
2468         return FALSE;
2469 }
2470
2471 static gboolean
2472 _selected_folder_is_same_as_source (ModestWindow *win)
2473 {
2474         ModestEmailClipboard *clipboard = NULL;
2475         GtkWidget *folder_view = NULL;
2476         TnyFolderStore *folder = NULL;
2477         gboolean result = FALSE;
2478
2479         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2480
2481         /* Get folder view */
2482         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2483                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2484         if (!folder_view)
2485                 return FALSE;
2486
2487         /* Get selected folder as destination folder */
2488         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2489         if (!(folder && TNY_IS_FOLDER(folder))) {
2490                 result = FALSE;
2491                 goto frees;
2492         }
2493
2494         /* Check clipboard is cleared */
2495         clipboard = modest_runtime_get_email_clipboard ();
2496         if (modest_email_clipboard_cleared (clipboard)) {
2497                 result = FALSE;
2498                 goto frees;
2499         }
2500
2501         /* Check source folder */
2502         result = modest_email_clipboard_check_source_folder (clipboard, TNY_FOLDER (folder));
2503
2504         /* Free */
2505  frees:
2506         g_object_unref (folder);
2507
2508         return result;
2509 }
2510
2511 static gboolean
2512 _selected_folder_is_any_of_type (ModestWindow *win,
2513                                  TnyFolderType types[],
2514                                  guint ntypes)
2515 {
2516         GtkWidget *folder_view = NULL;
2517         TnyFolderStore *folder = NULL;
2518         TnyFolderType folder_type;
2519         guint i=0;
2520         gboolean result = FALSE;
2521
2522         /*Get current folder */
2523         if (MODEST_IS_MAIN_WINDOW(win)) {
2524
2525                 /* Get folder view */
2526                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2527                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2528                 /* If no folder view, always dimmed */
2529                 if (!folder_view)
2530                         return FALSE;
2531
2532                 /* Get selected folder as parent of new folder to create */
2533                 folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2534
2535                 if (!(folder && TNY_IS_FOLDER(folder))) {
2536                         if (folder)
2537                                 g_object_unref (folder);
2538                         return FALSE;
2539                 }
2540
2541                 /* Check folder type */
2542                 result = _folder_is_any_of_type (TNY_FOLDER(folder), types, ntypes);
2543         }
2544         else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2545                 folder_type = modest_msg_view_window_get_folder_type (MODEST_MSG_VIEW_WINDOW (win));
2546                 for (i=0; i < ntypes; i++) {
2547                         result = result || folder_type == types[i];
2548                 }
2549         }
2550
2551
2552         /* free */
2553         if (folder)
2554                 g_object_unref (folder);
2555
2556         return result;
2557 }
2558
2559 static gboolean
2560 _folder_is_any_of_type (TnyFolder *folder,
2561                         TnyFolderType types[],
2562                         guint ntypes)
2563 {
2564         TnyFolderType folder_type;
2565         gboolean result = FALSE;
2566         guint i;
2567
2568         g_return_val_if_fail (TNY_IS_FOLDER(folder), FALSE);
2569
2570         /* Get folder type */
2571         folder_type = modest_tny_folder_guess_folder_type (folder);
2572         if (folder_type == TNY_FOLDER_TYPE_INVALID)
2573                 g_warning ("%s: BUG: TNY_FOLDER_TYPE_INVALID", __FUNCTION__);
2574
2575         /* Check foler type */
2576         for (i=0; i < ntypes; i++) {
2577                 result = result || folder_type == types[i];
2578         }
2579
2580         return result;
2581 }
2582
2583 static gboolean
2584 _clipboard_is_empty (ModestWindow *win)
2585 {
2586         gboolean result = FALSE;
2587
2588         if (MODEST_IS_MAIN_WINDOW (win)) {
2589                 ModestEmailClipboard *clipboard = NULL;
2590                 clipboard = modest_runtime_get_email_clipboard ();
2591                 if (modest_email_clipboard_cleared (clipboard))
2592                  result = TRUE;
2593         }
2594
2595         return result;
2596 }
2597
2598 static gboolean
2599 _invalid_clipboard_selected (ModestWindow *win,
2600                              ModestDimmingRule *rule)
2601 {
2602         gboolean result = FALSE;
2603         GtkWidget *focused = NULL;
2604
2605         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2606
2607         /* Get focuesed widget */
2608         focused = gtk_window_get_focus (GTK_WINDOW (win));
2609
2610         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
2611                 gboolean has_selection = FALSE;
2612                 if (GTK_IS_TEXT_VIEW (focused)) {
2613                         GtkTextBuffer *buffer = NULL;
2614                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2615                         has_selection = modest_text_utils_buffer_selection_is_valid (buffer);
2616                 } else if (GTK_IS_EDITABLE (focused)) {
2617                         has_selection = gtk_editable_get_selection_bounds (GTK_EDITABLE (focused), NULL, NULL);
2618                 }
2619                 result = !has_selection;
2620         } else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2621                 if (focused) {
2622                         MODEST_DEBUG_BLOCK (g_debug ("FOCUSED %s", g_type_name (G_TYPE_FROM_INSTANCE (focused))););
2623                         if (GTK_IS_LABEL (focused) &&
2624                             !gtk_label_get_selection_bounds (GTK_LABEL (focused), NULL, NULL)) {
2625                                 result = TRUE;
2626                         } else if (GTK_IS_TEXT_VIEW (focused)) {
2627                                 GtkTextBuffer *buffer;
2628                                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2629                                 result = !gtk_text_buffer_get_has_selection (buffer);
2630                         } else if (GTK_IS_HTML (focused)) {
2631                                 const gchar *sel;
2632                                 int len = -1;
2633                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
2634                                 result = ((sel == NULL) || (sel[0] == '\0'));
2635                         } else if (MODEST_IS_ATTACHMENTS_VIEW (focused)) {
2636                                 result = TRUE;
2637                         } else {
2638                                 GtkClipboard *clipboard;
2639                                 gchar *selection;
2640
2641                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
2642                                 /* Get clipboard selection*/
2643                                 selection = gtk_clipboard_wait_for_text (clipboard);
2644                                 /* Check dimming */
2645                                 result = (selection == NULL);
2646                                 g_free (selection);
2647                         }
2648                 } else {
2649                         result = TRUE;
2650                 }
2651
2652                 if (result)
2653                         modest_dimming_rule_set_notification (rule, "");
2654
2655         }
2656         else if (MODEST_IS_MAIN_WINDOW (win)) {
2657                 const DimmedState *state = NULL;
2658
2659                 /* Check dimming */
2660                 state = modest_window_get_dimming_state (win);
2661                 if (state)
2662                         result = state->n_selected == 0;
2663                 if (result)
2664                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2665         }
2666
2667         return result;
2668 }
2669
2670
2671 static gboolean
2672 _invalid_attach_selected (ModestWindow *win,
2673                           gboolean unique,
2674                           gboolean for_view,
2675                           gboolean for_remove,
2676                           ModestDimmingRule *rule)
2677 {
2678         TnyList *attachments;
2679         gint n_selected;
2680         TnyHeaderFlags flags;
2681         gboolean nested_attachments = FALSE;
2682         gboolean selected_messages = FALSE;
2683         gboolean result = FALSE;
2684
2685         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2686
2687         if (MODEST_IS_MAIN_WINDOW (win)) {
2688                 flags = TNY_HEADER_FLAG_ATTACHMENTS;
2689                 if (!result) {
2690                         const DimmedState *state = NULL;
2691                         state = modest_window_get_dimming_state (win);
2692                         result = !state->any_has_attachments;
2693                 }
2694         }
2695         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2696
2697                 /* Get selected atachments */
2698                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2699                 n_selected = tny_list_get_length (attachments);
2700
2701                 /* Check unique */
2702                 if (!result) {
2703                         if (unique)
2704                                 result = n_selected != 1;
2705                         else
2706
2707                                 result = n_selected < 1;
2708                 }
2709
2710                 /* Check attached type (view operation not required) */
2711                 if (!result && !for_view)  {
2712                         TnyIterator *iter;
2713                         iter = tny_list_create_iterator (attachments);
2714                         while (!tny_iterator_is_done (iter) && !result) {
2715 #ifdef MODEST_TOOLKIT_HILDON2
2716                                 gboolean not_selectable = FALSE;
2717 #endif
2718                                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2719                                 TnyList *nested_list = tny_simple_list_new ();
2720                                 tny_mime_part_get_parts (mime_part, nested_list);
2721
2722                                 if (!for_remove && modest_tny_mime_part_is_msg (mime_part)) {
2723                                         TnyMsg *window_msg;
2724                                         window_msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2725                                         if ((TnyMimePart *) window_msg != mime_part) {
2726                                                 selected_messages = TRUE;
2727 #ifdef MODEST_TOOLKIT_HILDON2
2728                                                 not_selectable = TRUE;
2729 #else
2730                                                 result = TRUE;
2731 #endif
2732                                         }
2733                                         g_object_unref (window_msg);
2734                                 }
2735                                 if (!for_remove && tny_list_get_length (nested_list) > 0) {
2736                                         nested_attachments = TRUE;
2737 #ifdef MODEST_TOOLKIT_HILDON2
2738                                         not_selectable = TRUE;
2739 #else
2740                                         result = TRUE;
2741 #endif
2742                                 }
2743 #ifdef MODEST_TOOLKIT_HILDON2
2744                                 if (not_selectable)
2745                                         n_selected --;
2746 #endif
2747                                 g_object_unref (nested_list);
2748                                 g_object_unref (mime_part);
2749                                 tny_iterator_next (iter);
2750                         }
2751                         g_object_unref (iter);
2752                 }
2753
2754                 /* No valid attachment available */
2755                 if (n_selected == 0)
2756                         result = TRUE;
2757
2758                 /* Set notifications */
2759                 if (result && rule != NULL) {
2760                         if (selected_messages) {
2761                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_save_attach_mail"));
2762                         } else if (nested_attachments) {
2763                                 modest_dimming_rule_set_notification (rule, _("FIXME:unable to save attachments with nested elements"));
2764                         } else if (n_selected == 0) {
2765                                 modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
2766                         } else if (unique) {
2767                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_display_more"));
2768                         }
2769                 }
2770
2771                 /* Free */
2772                 g_object_unref (attachments);
2773         }
2774
2775         return result;
2776 }
2777
2778 static gboolean
2779 _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule)
2780 {
2781         TnyList *attachments = NULL;
2782         TnyIterator *iter;
2783         gint purged = 0;
2784         gint n_attachments = 0;
2785         gboolean result = FALSE;
2786
2787         /* This should check if _all_ the attachments are already purged. If only some
2788          * of them are purged, then it does not cause dim as there's a confirmation dialog
2789          * for removing only local attachments */
2790
2791         /* Get selected atachments */
2792         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2793                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2794         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2795                 /* If we're in main window, we won't know if there are already purged attachments */
2796                 return FALSE;
2797         }
2798
2799         if (attachments == NULL)
2800                 return FALSE;
2801
2802         if (tny_list_get_length (attachments) == 0) {
2803                 g_object_unref (attachments);
2804                 return FALSE;
2805         }
2806
2807         iter = tny_list_create_iterator (attachments);
2808         while (!tny_iterator_is_done (iter)) {
2809                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2810                 if (tny_mime_part_is_purged (mime_part)) {
2811                         purged++;
2812                 }
2813                 n_attachments++;
2814                 g_object_unref (mime_part);
2815                 tny_iterator_next (iter);
2816         }
2817         g_object_unref (iter);
2818
2819         /* Free */
2820         g_object_unref (attachments);
2821
2822         if (all)
2823                 result = (purged == n_attachments);
2824         else
2825                 result = (purged > 0);
2826
2827         /* This string no longer exists, refer to NB#75415 for more info
2828         if (result && (rule != NULL))
2829                 modest_dimming_rule_set_notification (rule, _("mail_ib_attachment_already_purged"));
2830         */
2831
2832         return result;
2833 }
2834
2835 static gboolean
2836 _invalid_msg_selected (ModestMainWindow *win,
2837                        gboolean unique,
2838                        ModestDimmingRule *rule)
2839 {
2840         GtkWidget *folder_view = NULL;
2841         const DimmedState *state = NULL;
2842         gboolean result = FALSE;
2843         gint n_selected = 0;
2844
2845         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2846         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (rule), FALSE);
2847
2848         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2849         if (state)
2850                 n_selected = state->n_selected;
2851
2852         /* Get folder view to check focus */
2853         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2854                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2855
2856         /* Check dimmed rule (TODO: check focus on widgets */
2857         if (!result) {
2858                 result = ((n_selected == 0 ) ||
2859                           (gtk_widget_is_focus (folder_view)));
2860                 if (result)
2861                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2862         }
2863         if (!result && unique) {
2864                 result = n_selected > 1;
2865                 if (result)
2866                         modest_dimming_rule_set_notification (rule, _("mcen_ib_select_one_message"));
2867         }
2868
2869         return result;
2870 }
2871
2872
2873 static gboolean
2874 _msg_download_in_progress (ModestWindow *win)
2875 {
2876         gboolean result = FALSE;
2877
2878         g_return_val_if_fail (MODEST_IS_WINDOW (win), FALSE);
2879
2880         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2881                 result = modest_msg_view_window_toolbar_on_transfer_mode (MODEST_MSG_VIEW_WINDOW(win));
2882         }
2883         else if (MODEST_IS_MAIN_WINDOW (win)) {
2884                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW(win));
2885         }
2886
2887         return result;
2888 }
2889
2890 static gboolean
2891 _msg_download_completed (ModestMainWindow *win)
2892 {
2893         const DimmedState *state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2894         return (state) ? state->any_marked_as_cached : TRUE;
2895 }
2896
2897 static void
2898 fill_list_of_caches (gpointer key, gpointer value, gpointer userdata)
2899 {
2900         GSList **send_queues = (GSList **) userdata;
2901         *send_queues = g_slist_prepend (*send_queues, value);
2902 }
2903
2904 static gboolean
2905 _selected_msg_sent_in_progress (ModestWindow *win)
2906 {
2907         const DimmedState *state = modest_window_get_dimming_state (win);
2908         return (state) ? state->sent_in_progress : TRUE;
2909 }
2910
2911
2912 static gboolean
2913 _invalid_folder_for_purge (ModestWindow *win,
2914                            ModestDimmingRule *rule)
2915 {
2916         TnyFolder *folder = NULL;
2917         TnyAccount *account = NULL;
2918         gboolean result = FALSE;
2919
2920         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2921
2922                 /* Get folder and account of message */
2923                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2924                 g_return_val_if_fail(msg != NULL, TRUE);
2925                 folder = tny_msg_get_folder (msg);
2926                 g_object_unref (msg);
2927                 if (folder == NULL) {
2928                         result = TRUE;
2929                         goto frees;
2930                 }
2931         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2932                 GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2933                                                                               MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2934                 if (!folder_view)
2935                         return FALSE;
2936                 folder = (TnyFolder *) modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
2937                 /* Could be a folder store */
2938                 if (folder == NULL || ! TNY_IS_FOLDER (folder))
2939                         goto frees;
2940         } else {
2941                 g_return_val_if_reached (FALSE);
2942         }
2943         account = modest_tny_folder_get_account (folder);
2944         if (account == NULL) goto frees;
2945
2946         /* Check account */
2947         if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (account))) {
2948                 TnyFolderType types[2];
2949                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
2950                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
2951
2952                 if (_selected_folder_is_any_of_type (win, types, 2)) {
2953                         result = TRUE;
2954                 }
2955         } else {
2956                 ModestProtocolType protocol_type = modest_tny_account_get_protocol_type (TNY_ACCOUNT (account));
2957                 /* If it's a remote folder then dim */
2958                 if (modest_protocol_registry_protocol_type_has_tag (modest_runtime_get_protocol_registry (),
2959                                                                     protocol_type,
2960                                                                     MODEST_PROTOCOL_REGISTRY_REMOTE_STORE_PROTOCOLS)) {
2961                         result = TRUE;
2962                 }
2963         }
2964
2965 frees:
2966         if (folder != NULL)
2967                 g_object_unref (folder);
2968         if (account != NULL)
2969                 g_object_unref (account);
2970
2971         return result;
2972 }
2973
2974 static gboolean
2975 _transfer_mode_enabled (ModestWindow *win)
2976 {
2977         gboolean result = FALSE;
2978
2979         /* Check dimming */
2980         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2981                 result = modest_msg_view_window_transfer_mode_enabled (MODEST_MSG_VIEW_WINDOW (win));
2982         } else if (MODEST_IS_MAIN_WINDOW(win)) {
2983                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW (win));
2984 #ifdef MODEST_TOOLKIT_HILDON2
2985         } else if (MODEST_IS_FOLDER_WINDOW (win)) {
2986                 result = modest_folder_window_transfer_mode_enabled (MODEST_FOLDER_WINDOW (win));
2987         } else if (MODEST_IS_HEADER_WINDOW (win)) {
2988                 result = modest_header_window_transfer_mode_enabled (MODEST_HEADER_WINDOW (win));
2989 #endif
2990         } else {
2991                 g_warning("_transfer_mode_enabled called with wrong window type");
2992         }
2993
2994         return result;
2995 }
2996
2997 static gboolean
2998 _selected_folder_has_subfolder_with_same_name (ModestWindow *win)
2999 {
3000         GtkWidget *folder_view = NULL;
3001         TnyFolderStore *folder = NULL;
3002         ModestEmailClipboard *clipboard = NULL;
3003         const gchar *folder_name = NULL;
3004         gboolean result = FALSE;
3005
3006         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
3007
3008         /*Get current parent folder */
3009         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
3010                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
3011         /* If no folder view, always dimmed */
3012         if (!folder_view) return FALSE;
3013
3014         /* Get selected folder as parent of new folder to create */
3015         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
3016         if (!(folder && TNY_IS_FOLDER(folder))) goto frees;
3017
3018         /* get modest clipboard and source folder */
3019         clipboard = modest_runtime_get_email_clipboard ();
3020         folder_name = modest_email_clipboard_get_folder_name (clipboard);
3021         if (folder_name == NULL) goto frees;
3022
3023         /* Check source subfolders names */
3024         result = modest_tny_folder_has_subfolder_with_name (folder, folder_name,
3025                                                             TRUE);
3026
3027         /* Free */
3028  frees:
3029         if (folder != NULL)
3030                 g_object_unref (folder);
3031
3032
3033         return result;
3034 }
3035
3036 static gboolean
3037 _all_msgs_in_sending_status (ModestHeaderView *header_view)
3038 {
3039         GtkTreeModel *model;
3040         GtkTreeIter iter;
3041         gboolean all_sending = TRUE;
3042
3043         model = gtk_tree_view_get_model (GTK_TREE_VIEW (header_view));
3044         if (gtk_tree_model_get_iter_first (model, &iter)) {
3045                 do {
3046                         TnyHeader *header;
3047
3048                         gtk_tree_model_get (model, &iter,
3049                                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
3050                                             &header,
3051                                             -1);
3052
3053                         if (header) {
3054                                 if (modest_tny_all_send_queues_get_msg_status (header) !=
3055                                     MODEST_TNY_SEND_QUEUE_SENDING)
3056                                         all_sending = FALSE;
3057                                 g_object_unref (header);
3058                         }
3059
3060                 } while (all_sending && gtk_tree_model_iter_next (model, &iter));
3061         }
3062         return all_sending;
3063 }
3064
3065 gboolean
3066 modest_ui_dimming_rules_on_save_to_drafts (ModestWindow *win,
3067                                            gpointer user_data)
3068 {
3069         ModestDimmingRule *rule = NULL;
3070
3071         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
3072         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3073         rule = MODEST_DIMMING_RULE (user_data);
3074
3075         /* Check dimmed rule */
3076         return !modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (win));
3077 }
3078
3079 gboolean
3080 modest_ui_dimming_rules_on_insert_image (ModestWindow *win,
3081                                          gpointer user_data)
3082 {
3083         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
3084
3085         ModestMsgEditFormat format =
3086           modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
3087
3088         return (format != MODEST_MSG_EDIT_FORMAT_HTML);
3089 }
3090
3091 static gboolean
3092 _send_receive_in_progress (ModestWindow *win)
3093 {
3094         ModestMailOperationQueue *queue;
3095         GSList *op_list, *node;
3096         gboolean found_send_receive;
3097
3098         queue = modest_runtime_get_mail_operation_queue ();
3099         op_list = modest_mail_operation_queue_get_by_source (queue, G_OBJECT (win));
3100
3101         found_send_receive = FALSE;
3102         for (node = op_list; node != NULL; node = g_slist_next (node)) {
3103                 ModestMailOperation *op;
3104
3105                 op = (ModestMailOperation *) node->data;
3106                 if (modest_mail_operation_get_type_operation (op) == MODEST_MAIL_OPERATION_TYPE_SEND_AND_RECEIVE) {
3107                         found_send_receive = TRUE;
3108                         break;
3109                 }
3110         }
3111
3112         if (op_list) {
3113                 g_slist_foreach (op_list, (GFunc) g_object_unref, NULL);
3114                 g_slist_free (op_list);
3115         }
3116
3117         return found_send_receive;
3118 }
3119
3120 static gboolean
3121 _msgs_send_in_progress (void)
3122 {
3123         ModestCacheMgr *cache_mgr;
3124         GHashTable *send_queue_cache;
3125         ModestTnySendQueue *send_queue;
3126         GSList *send_queues = NULL, *node = NULL;
3127         gboolean found = FALSE;
3128
3129         cache_mgr = modest_runtime_get_cache_mgr ();
3130         send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
3131                                                        MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
3132
3133         g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
3134
3135         for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
3136                 send_queue = MODEST_TNY_SEND_QUEUE (node->data);
3137
3138                 /* Check if msg uid is being processed inside send queue */
3139                 if (modest_tny_send_queue_sending_in_progress (send_queue)) {
3140                         found = TRUE;
3141                         break;
3142                 }
3143         }
3144
3145         g_slist_free (send_queues);
3146
3147         return found;
3148 }
3149
3150 /*****************************************************************************/
3151 /********************** HILDON2 only dimming rules ***************************/
3152 /*****************************************************************************/
3153
3154 #ifdef MODEST_TOOLKIT_HILDON2
3155 gboolean
3156 modest_ui_dimming_rules_on_header_window_move_to (ModestWindow *win, gpointer user_data)
3157 {
3158         ModestDimmingRule *rule = NULL;
3159         gboolean dimmed = FALSE;
3160
3161         g_return_val_if_fail (MODEST_IS_HEADER_WINDOW(win), FALSE);
3162         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3163         rule = MODEST_DIMMING_RULE (user_data);
3164
3165         /* Check dimmed rule */
3166         dimmed = _transfer_mode_enabled (win);
3167         if (dimmed)
3168                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
3169
3170         if (!dimmed)
3171                 dimmed = _forbid_outgoing_xfers (win);
3172
3173         if (!dimmed) {
3174                 GtkWidget *header_view;
3175                 TnyFolder *folder;
3176
3177                 header_view = GTK_WIDGET (modest_header_window_get_header_view (MODEST_HEADER_WINDOW (win)));
3178                 folder = modest_header_view_get_folder (MODEST_HEADER_VIEW (header_view));
3179                 if (folder) {
3180                         dimmed = (tny_folder_get_all_count (TNY_FOLDER (folder)) == 0) ||
3181                                 modest_header_view_is_empty (MODEST_HEADER_VIEW (header_view));
3182
3183                         if (!dimmed &&
3184                             (tny_folder_get_folder_type (TNY_FOLDER (folder)) == TNY_FOLDER_TYPE_OUTBOX)) {
3185                                 dimmed = _all_msgs_in_sending_status (MODEST_HEADER_VIEW (header_view));;
3186                         }
3187                         g_object_unref (folder);
3188                 }
3189         }
3190
3191         return dimmed;
3192 }
3193
3194 gboolean
3195 modest_ui_dimming_rules_on_folder_window_move_to (ModestWindow *win, gpointer user_data)
3196 {
3197         ModestDimmingRule *rule = NULL;
3198         gboolean dimmed = FALSE;
3199
3200         g_return_val_if_fail (MODEST_IS_FOLDER_WINDOW(win), FALSE);
3201         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3202         rule = MODEST_DIMMING_RULE (user_data);
3203
3204         /* Check dimmed rule */
3205         dimmed = _transfer_mode_enabled (win);
3206         if (dimmed)
3207                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
3208
3209         if (!dimmed)
3210                 dimmed = _forbid_outgoing_xfers (win);
3211
3212         if (!dimmed && MODEST_IS_FOLDER_WINDOW (win)) {
3213                 ModestFolderView *folder_view;
3214                 folder_view = modest_folder_window_get_folder_view (MODEST_FOLDER_WINDOW (win));
3215                 dimmed = !modest_folder_view_any_folder_fulfils_rules (folder_view,
3216                                                                        MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE);
3217         }
3218
3219         if (!dimmed) {
3220                 dimmed = _transfer_mode_enabled (win);
3221                 if (dimmed)
3222                         modest_dimming_rule_set_notification (rule, "");
3223         }
3224
3225         return dimmed;
3226 }
3227
3228 gboolean
3229 modest_ui_dimming_rules_on_folder_window_delete (ModestWindow *win, gpointer user_data)
3230 {
3231         ModestDimmingRule *rule = NULL;
3232         gboolean dimmed = FALSE;
3233
3234         g_return_val_if_fail (MODEST_IS_FOLDER_WINDOW(win), FALSE);
3235         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3236         rule = MODEST_DIMMING_RULE (user_data);
3237
3238         /* Check dimmed rule */
3239         dimmed = _transfer_mode_enabled (win);
3240         if (dimmed)
3241                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
3242
3243         if (MODEST_IS_FOLDER_WINDOW (win)) {
3244                 ModestFolderView *folder_view;
3245                 folder_view = modest_folder_window_get_folder_view (MODEST_FOLDER_WINDOW (win));
3246                 dimmed = !modest_folder_view_any_folder_fulfils_rules (folder_view,
3247                                                                        MODEST_FOLDER_RULES_FOLDER_NON_DELETABLE);
3248         }
3249
3250         if (!dimmed) {
3251                 dimmed = _transfer_mode_enabled (win);
3252                 if (dimmed)
3253                         modest_dimming_rule_set_notification (rule, "");
3254         }
3255
3256         return dimmed;
3257 }
3258
3259 gboolean
3260 modest_ui_dimming_rules_on_edit_accounts (ModestWindow *win, gpointer user_data)
3261 {
3262         return !modest_account_mgr_has_accounts (modest_runtime_get_account_mgr (), TRUE);
3263 }
3264 #endif