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 *body_field;
1865
1866         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1867         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1868         rule = MODEST_DIMMING_RULE (user_data);
1869
1870         body_field = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1871                                                               MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1872
1873         if (!dimmed) {
1874                 GtkWidget *to_field, *cc_field, *bcc_field;
1875                 GtkTextBuffer * to_buffer, *cc_buffer, *bcc_buffer;
1876                 cc_field = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1877                                                                     MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_CC);
1878                 to_field = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1879                                                                     MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_TO);
1880                 bcc_field = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1881                                                                      MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BCC);
1882                 to_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (to_field));
1883                 cc_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (cc_field));
1884                 bcc_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (bcc_field));
1885
1886                 dimmed = ((gtk_text_buffer_get_char_count (to_buffer) +
1887                            gtk_text_buffer_get_char_count (cc_buffer) +
1888                            gtk_text_buffer_get_char_count (bcc_buffer)) == 0);
1889                 if (dimmed)
1890                         modest_dimming_rule_set_notification (rule, _("mcen_ib_add_recipients_first"));
1891         }
1892
1893         return dimmed;
1894 }
1895
1896 gboolean
1897 modest_ui_dimming_rules_on_view_previous (ModestWindow *win, gpointer user_data)
1898 {
1899         ModestDimmingRule *rule = NULL;
1900         gboolean dimmed = FALSE;
1901
1902         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1903         rule = MODEST_DIMMING_RULE (user_data);
1904
1905         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1906
1907         /* Check dimmed rule */
1908         dimmed = _transfer_mode_enabled (win);
1909         if (dimmed)
1910                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1911
1912         if (!dimmed) {
1913                 dimmed = modest_msg_view_window_first_message_selected (
1914                                 MODEST_MSG_VIEW_WINDOW(win));
1915                 modest_dimming_rule_set_notification (rule, NULL);
1916         }
1917
1918         return dimmed;
1919 }
1920
1921 gboolean
1922 modest_ui_dimming_rules_on_view_next (ModestWindow *win, gpointer user_data)
1923 {
1924         ModestDimmingRule *rule = NULL;
1925         gboolean dimmed = FALSE;
1926
1927         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1928         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1929         rule = MODEST_DIMMING_RULE (user_data);
1930
1931         /* Check dimmed rule */
1932         dimmed = _transfer_mode_enabled (win);
1933         if (dimmed)
1934                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1935
1936         if (!dimmed) {
1937                 dimmed = modest_msg_view_window_last_message_selected (MODEST_MSG_VIEW_WINDOW (win));
1938                 modest_dimming_rule_set_notification (rule, NULL);
1939         }
1940
1941         return dimmed;
1942 }
1943
1944
1945 gboolean
1946 modest_ui_dimming_rules_on_tools_smtp_servers (ModestWindow *win, gpointer user_data)
1947 {
1948         gboolean dimmed;
1949         ModestAccountMgr *mgr;
1950
1951         mgr = modest_runtime_get_account_mgr();
1952         dimmed = !modest_account_mgr_has_accounts(mgr, TRUE);
1953
1954         /* Dimm it if we only have metaaccounts */
1955         if (!dimmed) {
1956                 ModestProtocolRegistry *reg = modest_runtime_get_protocol_registry ();
1957                 GSList *account_names = modest_account_mgr_account_names (mgr, TRUE);
1958
1959                 if (account_names) {
1960                         ModestProtocolType store_protocol;
1961                         gboolean found = FALSE;
1962                         GSList *iter = account_names;
1963                         const gchar *tag = MODEST_PROTOCOL_REGISTRY_MULTI_MAILBOX_PROVIDER_PROTOCOLS;
1964
1965                         while (iter && !found) {
1966                                 gchar* account_name;
1967
1968                                 account_name = (gchar *) iter->data;
1969                                 store_protocol = modest_account_mgr_get_store_protocol (mgr, account_name);
1970
1971                                 if (!modest_protocol_registry_protocol_type_has_tag (reg, store_protocol, tag))
1972                                         found = TRUE;
1973                                 else
1974                                         iter = g_slist_next (iter);
1975                         }
1976                         modest_account_mgr_free_account_names (account_names);
1977                         dimmed = !found;
1978                 }
1979         }
1980
1981         return dimmed;
1982 }
1983
1984 gboolean
1985 modest_ui_dimming_rules_on_cancel_sending (ModestWindow *win, gpointer user_data)
1986 {
1987         ModestDimmingRule *rule = NULL;
1988         TnyFolderType types[1];
1989         const DimmedState *state = NULL;
1990         gboolean dimmed = FALSE;
1991
1992         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1993         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1994         rule = MODEST_DIMMING_RULE (user_data);
1995         state = modest_window_get_dimming_state (win);
1996
1997         types[0] = TNY_FOLDER_TYPE_OUTBOX;
1998
1999         /* Check dimmed rules */
2000         dimmed = !_selected_folder_is_any_of_type (win, types, 1);
2001         if (dimmed)
2002                 modest_dimming_rule_set_notification (rule, "");
2003         if (!dimmed) {
2004                 if (state)
2005                         dimmed = !state->sent_in_progress;
2006                 if (dimmed)
2007                         modest_dimming_rule_set_notification (rule, "");
2008         }
2009
2010         return dimmed;
2011 }
2012
2013 gboolean
2014 modest_ui_dimming_rules_on_cancel_sending_all (ModestWindow *win, gpointer user_data)
2015 {
2016         /* We dim if no msg send is in progress (and then cancelling send all has no
2017          * effect */
2018         return !_msgs_send_in_progress ();
2019 }
2020
2021 gboolean
2022 modest_ui_dimming_rules_on_send_receive (ModestWindow *win, gpointer user_data)
2023 {
2024         ModestDimmingRule *rule = NULL;
2025         gboolean dimmed = FALSE;
2026         ModestAccountMgr *mgr;
2027         const gchar* account_name;
2028
2029         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2030         rule = MODEST_DIMMING_RULE (user_data);
2031         mgr = modest_runtime_get_account_mgr();
2032
2033         /* Check dimmed rule */
2034         account_name = modest_window_get_active_account (win);
2035
2036         if (account_name)
2037                 dimmed = modest_account_mgr_account_is_busy (mgr, account_name);
2038         else
2039                 dimmed = TRUE;
2040
2041         if (dimmed)
2042                 modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
2043
2044         return dimmed;
2045 }
2046
2047 gboolean
2048 modest_ui_dimming_rules_on_send_receive_all (ModestWindow *win, gpointer user_data)
2049 {
2050         ModestDimmingRule *rule = NULL;
2051         gboolean dimmed = FALSE;
2052
2053         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2054         rule = MODEST_DIMMING_RULE (user_data);
2055
2056         /* Check dimmed rule */
2057         GSList *account_names = modest_account_mgr_account_names (modest_runtime_get_account_mgr (), TRUE);
2058         if (g_slist_length (account_names) < 1)
2059                 dimmed = TRUE;
2060         if (dimmed)
2061                 modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
2062
2063         modest_account_mgr_free_account_names (account_names);
2064
2065         if (!dimmed) {
2066                 dimmed = _send_receive_in_progress (win);
2067         }
2068
2069         return dimmed;
2070 }
2071
2072 #ifdef MODEST_TOOLKIT_HILDON2
2073 gboolean
2074 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
2075 {
2076         TnyMsg *msg;
2077         GSList *recipients, *node;
2078         gboolean has_recipients_to_add;
2079
2080         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2081         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW (win), FALSE);
2082
2083         msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2084
2085         /* Message is loaded asynchronously, so this could happen */
2086         if (!msg) {
2087 #ifdef MODEST_TOOLKIT_HILDON2
2088                 TnyHeader *header;
2089
2090                 header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW (win));
2091                 if (!header)
2092                         return TRUE;
2093
2094                 recipients = modest_tny_msg_header_get_all_recipients_list (header);
2095                 g_object_unref (header);
2096 #else
2097                 return TRUE;
2098 #endif
2099         } else {
2100                 recipients = modest_tny_msg_get_all_recipients_list (msg);
2101                 g_object_unref (msg);
2102         }
2103
2104         has_recipients_to_add = FALSE;
2105         for (node = recipients; node != NULL; node = g_slist_next (node)) {
2106                 if (!modest_address_book_has_address ((const gchar *) node->data)) {
2107                         has_recipients_to_add = TRUE;
2108                         break;
2109                 }
2110         }
2111
2112         g_slist_foreach (recipients, (GFunc) g_free, NULL);
2113         g_slist_free (recipients);
2114
2115         return !has_recipients_to_add;
2116 }
2117 #else
2118 gboolean
2119 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
2120 {
2121         ModestDimmingRule *rule = NULL;
2122         gboolean dimmed = FALSE;
2123         GtkWidget *focused = NULL;
2124
2125         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2126         rule = MODEST_DIMMING_RULE (user_data);
2127         focused = gtk_window_get_focus (GTK_WINDOW (win));
2128
2129         dimmed = !focused;
2130
2131         if (!dimmed) {
2132                 gchar *selection = NULL;
2133                 if (GTK_IS_TEXT_VIEW (focused)) {
2134                         GtkTextIter start, end;
2135                         GtkTextBuffer *buffer = NULL;
2136                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2137                         if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end)) {
2138                                 selection = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
2139                         }
2140                 } else if (GTK_IS_LABEL (focused)) {
2141                         selection = modest_text_utils_label_get_selection (GTK_LABEL (focused));
2142                 } else {
2143                         gboolean do_check = TRUE;
2144                         GtkClipboard *clipboard;
2145                         if (GTK_IS_HTML (focused)) {
2146                                 const gchar *sel;
2147                                 int len = -1;
2148                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
2149                                 do_check = !((sel == NULL) || (sel[0] == '\0'));
2150                         } else if (MODEST_IS_ATTACHMENTS_VIEW (focused)) {
2151                                 do_check = FALSE;
2152                         }
2153                         if (do_check) {
2154                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
2155                                 selection = gtk_clipboard_wait_for_text (clipboard);
2156                         } else {
2157                                 selection = NULL;
2158                         }
2159                 }
2160                 dimmed = !((selection != NULL) && (modest_text_utils_validate_recipient (selection, NULL)));
2161         }
2162
2163         return dimmed;
2164 }
2165 #endif
2166
2167 /* *********************** static utility functions ******************** */
2168
2169
2170 static gboolean
2171 _selected_folder_not_writeable (ModestMainWindow *win,
2172                                 gboolean for_paste)
2173 {
2174         GtkWidget *folder_view = NULL;
2175         TnyFolderStore *parent_folder = NULL;
2176         ModestEmailClipboard *clipboard = NULL;
2177         ModestTnyFolderRules rules;
2178         gboolean is_local_acc = FALSE;
2179         gboolean xfer_folders = FALSE;
2180         gboolean result = FALSE;
2181
2182         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2183
2184         /* Get folder view */
2185         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2186                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2187         /* If no folder view, always dimmed */
2188         if (!folder_view)
2189                 return TRUE;
2190
2191         /* Get selected folder as parent of new folder to create */
2192         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2193         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2194                 /* If it's the local account and its transfering folders, then do not dim */
2195                 if (TNY_IS_ACCOUNT (parent_folder)) {
2196                         is_local_acc = modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder));
2197                         if (for_paste) {
2198                                 clipboard = modest_runtime_get_email_clipboard ();
2199                                 xfer_folders = modest_email_clipboard_folder_copied (clipboard);
2200                         }
2201                 }
2202
2203                 if (for_paste)
2204                         result = !(is_local_acc && xfer_folders);
2205                 else
2206                         result = !is_local_acc;
2207                 goto frees;
2208         }
2209
2210         /* Check dimmed rule */
2211         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2212         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
2213
2214         /* free */
2215  frees:
2216         if (parent_folder != NULL)
2217                 g_object_unref (parent_folder);
2218
2219         return result;
2220 }
2221
2222 static gboolean
2223 _selected_folder_not_deletable (ModestMainWindow *win)
2224 {
2225         GtkWidget *folder_view = NULL;
2226         TnyFolderStore *parent_folder = NULL;
2227         ModestTnyFolderRules rules;
2228         gboolean result = FALSE;
2229
2230         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2231
2232         /* Get folder view */
2233         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2234                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2235         /* If no folder view, always dimmed */
2236         if (!folder_view)
2237                 return TRUE;
2238
2239         /* Get selected folder as parent of new folder to create */
2240         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2241         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2242                 result = TRUE;
2243                 goto frees;
2244         }
2245
2246         /* Check dimmed rule */
2247         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2248         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_DELETABLE;
2249
2250         /* free */
2251  frees:
2252         if (parent_folder != NULL)
2253                 g_object_unref (parent_folder);
2254
2255         return result;
2256 }
2257
2258 static gboolean
2259 _selected_folder_not_moveable (ModestMainWindow *win)
2260 {
2261         GtkWidget *folder_view = NULL;
2262         TnyFolderStore *parent_folder = NULL;
2263         ModestTnyFolderRules rules;
2264         gboolean result = FALSE;
2265
2266         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2267
2268         /* Get folder view */
2269         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2270                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2271         /* If no folder view, always dimmed */
2272         if (!folder_view)
2273                 return TRUE;
2274
2275         /* Get selected folder as parent of new folder to create */
2276         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2277         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2278                 result = TRUE;
2279                 goto frees;
2280         }
2281
2282         /* Check dimmed rule */
2283         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2284         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE;
2285
2286         /* free */
2287  frees:
2288         if (parent_folder != NULL)
2289                 g_object_unref (parent_folder);
2290
2291         return result;
2292 }
2293
2294 static gboolean
2295 _selected_folder_not_renameable (ModestMainWindow *win)
2296 {
2297         GtkWidget *folder_view = NULL;
2298         TnyFolderStore *parent_folder = NULL;
2299         ModestTnyFolderRules rules;
2300         gboolean result = FALSE;
2301
2302         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2303
2304         /* Get folder view */
2305         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2306                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2307         /* If no folder view, always dimmed */
2308         if (!folder_view)
2309                 return TRUE;
2310
2311         /* Get selected folder as parent of new folder to create */
2312         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2313         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2314                 result = TRUE;
2315                 goto frees;
2316         }
2317
2318         /* Check dimmed rule */
2319         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2320         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_RENAMEABLE;
2321
2322         /* free */
2323  frees:
2324         if (parent_folder != NULL)
2325                 g_object_unref (parent_folder);
2326
2327         return result;
2328 }
2329
2330 static gboolean
2331 _selected_folder_is_root_or_inbox (ModestMainWindow *win)
2332 {
2333         TnyFolderType types[2];
2334         gboolean result = FALSE;
2335
2336         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2337
2338         types[0] = TNY_FOLDER_TYPE_ROOT;
2339         types[1] = TNY_FOLDER_TYPE_INBOX;
2340
2341         /* Check folder type */
2342         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 2);
2343
2344         /* Check pop and MMC accounts */
2345         if (!result) {
2346                 result = _selected_folder_is_root (win);
2347         }
2348
2349         return result;
2350 }
2351
2352
2353 static gboolean
2354 _selected_folder_is_root (ModestMainWindow *win)
2355 {
2356         TnyFolderType types[1];
2357         gboolean result = FALSE;
2358
2359         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2360
2361         /* All accounts are root items: */
2362         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2363                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2364         if (folder_view) {
2365                 gboolean is_account = FALSE;
2366                 TnyFolderStore *folder_store =
2367                         modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2368                 if (folder_store) {
2369                         is_account = TNY_IS_ACCOUNT (folder_store);
2370
2371                         g_object_unref (folder_store);
2372                         folder_store = NULL;
2373                 }
2374
2375                 if (is_account)
2376                         return TRUE;
2377         }
2378
2379         /* Try something more precise: */
2380         types[0] = TNY_FOLDER_TYPE_ROOT;
2381
2382         /* Check folder type */
2383         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 1);
2384
2385         return result;
2386 }
2387
2388 static gboolean
2389 _header_view_is_all_selected (ModestMainWindow *win)
2390 {
2391         const DimmedState *state = NULL;
2392
2393         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2394
2395         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2396
2397         return (state) ? state->all_selected : TRUE;
2398 }
2399
2400 static gboolean
2401 _selected_folder_is_empty (ModestMainWindow *win)
2402 {
2403         GtkWidget *folder_view = NULL, *header_view = NULL;
2404         TnyFolderStore *folder = NULL;
2405         gboolean result = FALSE;
2406
2407         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2408
2409         /* Get folder view */
2410         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2411                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2412
2413         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2414                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
2415
2416         /* If no folder view, always dimmed */
2417         if (!folder_view || !header_view)
2418                 return TRUE;
2419
2420         /* Get selected folder as parent of new folder to create */
2421         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2422         if (!(folder && TNY_IS_FOLDER(folder))) {
2423                 if (folder)
2424                         g_object_unref (folder);
2425                 return TRUE;
2426         }
2427
2428         /* Check folder type */
2429         if (modest_header_view_is_empty (MODEST_HEADER_VIEW (header_view)) ||
2430             tny_folder_get_all_count (TNY_FOLDER (folder)) == 0)
2431                 result = TRUE;
2432
2433         /* free */
2434         g_object_unref (folder);
2435
2436         return result;
2437 }
2438
2439 static gboolean
2440 _folder_view_has_focus (ModestWindow *win)
2441 {
2442         GtkWidget *folder_view = NULL;
2443
2444         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2445
2446         /* Get folder view */
2447         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2448                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2449         if (!folder_view)
2450                 return FALSE;
2451
2452         if (gtk_widget_is_focus(folder_view))
2453                 return TRUE;
2454
2455         return FALSE;
2456 }
2457
2458 static gboolean
2459 _selected_folder_is_same_as_source (ModestWindow *win)
2460 {
2461         ModestEmailClipboard *clipboard = NULL;
2462         GtkWidget *folder_view = NULL;
2463         TnyFolderStore *folder = NULL;
2464         gboolean result = FALSE;
2465
2466         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2467
2468         /* Get folder view */
2469         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2470                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2471         if (!folder_view)
2472                 return FALSE;
2473
2474         /* Get selected folder as destination folder */
2475         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2476         if (!(folder && TNY_IS_FOLDER(folder))) {
2477                 result = FALSE;
2478                 goto frees;
2479         }
2480
2481         /* Check clipboard is cleared */
2482         clipboard = modest_runtime_get_email_clipboard ();
2483         if (modest_email_clipboard_cleared (clipboard)) {
2484                 result = FALSE;
2485                 goto frees;
2486         }
2487
2488         /* Check source folder */
2489         result = modest_email_clipboard_check_source_folder (clipboard, TNY_FOLDER (folder));
2490
2491         /* Free */
2492  frees:
2493         g_object_unref (folder);
2494
2495         return result;
2496 }
2497
2498 static gboolean
2499 _selected_folder_is_any_of_type (ModestWindow *win,
2500                                  TnyFolderType types[],
2501                                  guint ntypes)
2502 {
2503         GtkWidget *folder_view = NULL;
2504         TnyFolderStore *folder = NULL;
2505         TnyFolderType folder_type;
2506         guint i=0;
2507         gboolean result = FALSE;
2508
2509         /*Get current folder */
2510         if (MODEST_IS_MAIN_WINDOW(win)) {
2511
2512                 /* Get folder view */
2513                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2514                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2515                 /* If no folder view, always dimmed */
2516                 if (!folder_view)
2517                         return FALSE;
2518
2519                 /* Get selected folder as parent of new folder to create */
2520                 folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2521
2522                 if (!(folder && TNY_IS_FOLDER(folder))) {
2523                         if (folder)
2524                                 g_object_unref (folder);
2525                         return FALSE;
2526                 }
2527
2528                 /* Check folder type */
2529                 result = _folder_is_any_of_type (TNY_FOLDER(folder), types, ntypes);
2530         }
2531         else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2532                 folder_type = modest_msg_view_window_get_folder_type (MODEST_MSG_VIEW_WINDOW (win));
2533                 for (i=0; i < ntypes; i++) {
2534                         result = result || folder_type == types[i];
2535                 }
2536         }
2537
2538
2539         /* free */
2540         if (folder)
2541                 g_object_unref (folder);
2542
2543         return result;
2544 }
2545
2546 static gboolean
2547 _folder_is_any_of_type (TnyFolder *folder,
2548                         TnyFolderType types[],
2549                         guint ntypes)
2550 {
2551         TnyFolderType folder_type;
2552         gboolean result = FALSE;
2553         guint i;
2554
2555         g_return_val_if_fail (TNY_IS_FOLDER(folder), FALSE);
2556
2557         /* Get folder type */
2558         folder_type = modest_tny_folder_guess_folder_type (folder);
2559         if (folder_type == TNY_FOLDER_TYPE_INVALID)
2560                 g_warning ("%s: BUG: TNY_FOLDER_TYPE_INVALID", __FUNCTION__);
2561
2562         /* Check foler type */
2563         for (i=0; i < ntypes; i++) {
2564                 result = result || folder_type == types[i];
2565         }
2566
2567         return result;
2568 }
2569
2570 static gboolean
2571 _clipboard_is_empty (ModestWindow *win)
2572 {
2573         gboolean result = FALSE;
2574
2575         if (MODEST_IS_MAIN_WINDOW (win)) {
2576                 ModestEmailClipboard *clipboard = NULL;
2577                 clipboard = modest_runtime_get_email_clipboard ();
2578                 if (modest_email_clipboard_cleared (clipboard))
2579                  result = TRUE;
2580         }
2581
2582         return result;
2583 }
2584
2585 static gboolean
2586 _invalid_clipboard_selected (ModestWindow *win,
2587                              ModestDimmingRule *rule)
2588 {
2589         gboolean result = FALSE;
2590         GtkWidget *focused = NULL;
2591
2592         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2593
2594         /* Get focuesed widget */
2595         focused = gtk_window_get_focus (GTK_WINDOW (win));
2596
2597         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
2598                 gboolean has_selection = FALSE;
2599                 if (GTK_IS_TEXT_VIEW (focused)) {
2600                         GtkTextBuffer *buffer = NULL;
2601                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2602                         has_selection = modest_text_utils_buffer_selection_is_valid (buffer);
2603                 } else if (GTK_IS_EDITABLE (focused)) {
2604                         has_selection = gtk_editable_get_selection_bounds (GTK_EDITABLE (focused), NULL, NULL);
2605                 }
2606                 result = !has_selection;
2607         } else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2608                 if (focused) {
2609                         MODEST_DEBUG_BLOCK (g_debug ("FOCUSED %s", g_type_name (G_TYPE_FROM_INSTANCE (focused))););
2610                         if (GTK_IS_LABEL (focused) &&
2611                             !gtk_label_get_selection_bounds (GTK_LABEL (focused), NULL, NULL)) {
2612                                 result = TRUE;
2613                         } else if (GTK_IS_TEXT_VIEW (focused)) {
2614                                 GtkTextBuffer *buffer;
2615                                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2616                                 result = !gtk_text_buffer_get_has_selection (buffer);
2617                         } else if (GTK_IS_HTML (focused)) {
2618                                 const gchar *sel;
2619                                 int len = -1;
2620                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
2621                                 result = ((sel == NULL) || (sel[0] == '\0'));
2622                         } else if (MODEST_IS_ATTACHMENTS_VIEW (focused)) {
2623                                 result = TRUE;
2624                         } else {
2625                                 GtkClipboard *clipboard;
2626                                 gchar *selection;
2627
2628                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
2629                                 /* Get clipboard selection*/
2630                                 selection = gtk_clipboard_wait_for_text (clipboard);
2631                                 /* Check dimming */
2632                                 result = (selection == NULL);
2633                                 g_free (selection);
2634                         }
2635                 } else {
2636                         result = TRUE;
2637                 }
2638
2639                 if (result)
2640                         modest_dimming_rule_set_notification (rule, "");
2641
2642         }
2643         else if (MODEST_IS_MAIN_WINDOW (win)) {
2644                 const DimmedState *state = NULL;
2645
2646                 /* Check dimming */
2647                 state = modest_window_get_dimming_state (win);
2648                 if (state)
2649                         result = state->n_selected == 0;
2650                 if (result)
2651                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2652         }
2653
2654         return result;
2655 }
2656
2657
2658 static gboolean
2659 _invalid_attach_selected (ModestWindow *win,
2660                           gboolean unique,
2661                           gboolean for_view,
2662                           gboolean for_remove,
2663                           ModestDimmingRule *rule)
2664 {
2665         TnyList *attachments;
2666         gint n_selected;
2667         TnyHeaderFlags flags;
2668         gboolean nested_attachments = FALSE;
2669         gboolean selected_messages = FALSE;
2670         gboolean result = FALSE;
2671
2672         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2673
2674         if (MODEST_IS_MAIN_WINDOW (win)) {
2675                 flags = TNY_HEADER_FLAG_ATTACHMENTS;
2676                 if (!result) {
2677                         const DimmedState *state = NULL;
2678                         state = modest_window_get_dimming_state (win);
2679                         result = !state->any_has_attachments;
2680                 }
2681         }
2682         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2683
2684                 /* Get selected atachments */
2685                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2686                 n_selected = tny_list_get_length (attachments);
2687
2688                 /* Check unique */
2689                 if (!result) {
2690                         if (unique)
2691                                 result = n_selected != 1;
2692                         else
2693
2694                                 result = n_selected < 1;
2695                 }
2696
2697                 /* Check attached type (view operation not required) */
2698                 if (!result && !for_view)  {
2699                         TnyIterator *iter;
2700                         iter = tny_list_create_iterator (attachments);
2701                         while (!tny_iterator_is_done (iter) && !result) {
2702 #ifdef MODEST_TOOLKIT_HILDON2
2703                                 gboolean not_selectable = FALSE;
2704 #endif
2705                                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2706                                 TnyList *nested_list = tny_simple_list_new ();
2707                                 tny_mime_part_get_parts (mime_part, nested_list);
2708
2709                                 if (!for_remove && modest_tny_mime_part_is_msg (mime_part)) {
2710                                         TnyMsg *window_msg;
2711                                         window_msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2712                                         if ((TnyMimePart *) window_msg != mime_part) {
2713                                                 selected_messages = TRUE;
2714 #ifdef MODEST_TOOLKIT_HILDON2
2715                                                 not_selectable = TRUE;
2716 #else
2717                                                 result = TRUE;
2718 #endif
2719                                         }
2720                                         g_object_unref (window_msg);
2721                                 }
2722                                 if (!for_remove && tny_list_get_length (nested_list) > 0) {
2723                                         nested_attachments = TRUE;
2724 #ifdef MODEST_TOOLKIT_HILDON2
2725                                         not_selectable = TRUE;
2726 #else
2727                                         result = TRUE;
2728 #endif
2729                                 }
2730 #ifdef MODEST_TOOLKIT_HILDON2
2731                                 if (not_selectable)
2732                                         n_selected --;
2733 #endif
2734                                 g_object_unref (nested_list);
2735                                 g_object_unref (mime_part);
2736                                 tny_iterator_next (iter);
2737                         }
2738                         g_object_unref (iter);
2739                 }
2740
2741                 /* No valid attachment available */
2742                 if (n_selected == 0)
2743                         result = TRUE;
2744
2745                 /* Set notifications */
2746                 if (result && rule != NULL) {
2747                         if (selected_messages) {
2748                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_save_attach_mail"));
2749                         } else if (nested_attachments) {
2750                                 modest_dimming_rule_set_notification (rule, _("FIXME:unable to save attachments with nested elements"));
2751                         } else if (n_selected == 0) {
2752                                 modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
2753                         } else if (unique) {
2754                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_display_more"));
2755                         }
2756                 }
2757
2758                 /* Free */
2759                 g_object_unref (attachments);
2760         }
2761
2762         return result;
2763 }
2764
2765 static gboolean
2766 _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule)
2767 {
2768         TnyList *attachments = NULL;
2769         TnyIterator *iter;
2770         gint purged = 0;
2771         gint n_attachments = 0;
2772         gboolean result = FALSE;
2773
2774         /* This should check if _all_ the attachments are already purged. If only some
2775          * of them are purged, then it does not cause dim as there's a confirmation dialog
2776          * for removing only local attachments */
2777
2778         /* Get selected atachments */
2779         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2780                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2781         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2782                 /* If we're in main window, we won't know if there are already purged attachments */
2783                 return FALSE;
2784         }
2785
2786         if (attachments == NULL)
2787                 return FALSE;
2788
2789         if (tny_list_get_length (attachments) == 0) {
2790                 g_object_unref (attachments);
2791                 return FALSE;
2792         }
2793
2794         iter = tny_list_create_iterator (attachments);
2795         while (!tny_iterator_is_done (iter)) {
2796                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2797                 if (tny_mime_part_is_purged (mime_part)) {
2798                         purged++;
2799                 }
2800                 n_attachments++;
2801                 g_object_unref (mime_part);
2802                 tny_iterator_next (iter);
2803         }
2804         g_object_unref (iter);
2805
2806         /* Free */
2807         g_object_unref (attachments);
2808
2809         if (all)
2810                 result = (purged == n_attachments);
2811         else
2812                 result = (purged > 0);
2813
2814         /* This string no longer exists, refer to NB#75415 for more info
2815         if (result && (rule != NULL))
2816                 modest_dimming_rule_set_notification (rule, _("mail_ib_attachment_already_purged"));
2817         */
2818
2819         return result;
2820 }
2821
2822 static gboolean
2823 _invalid_msg_selected (ModestMainWindow *win,
2824                        gboolean unique,
2825                        ModestDimmingRule *rule)
2826 {
2827         GtkWidget *folder_view = NULL;
2828         const DimmedState *state = NULL;
2829         gboolean result = FALSE;
2830         gint n_selected = 0;
2831
2832         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2833         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (rule), FALSE);
2834
2835         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2836         if (state)
2837                 n_selected = state->n_selected;
2838
2839         /* Get folder view to check focus */
2840         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2841                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2842
2843         /* Check dimmed rule (TODO: check focus on widgets */
2844         if (!result) {
2845                 result = ((n_selected == 0 ) ||
2846                           (gtk_widget_is_focus (folder_view)));
2847                 if (result)
2848                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2849         }
2850         if (!result && unique) {
2851                 result = n_selected > 1;
2852                 if (result)
2853                         modest_dimming_rule_set_notification (rule, _("mcen_ib_select_one_message"));
2854         }
2855
2856         return result;
2857 }
2858
2859
2860 static gboolean
2861 _msg_download_in_progress (ModestWindow *win)
2862 {
2863         gboolean result = FALSE;
2864
2865         g_return_val_if_fail (MODEST_IS_WINDOW (win), FALSE);
2866
2867         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2868                 result = modest_msg_view_window_toolbar_on_transfer_mode (MODEST_MSG_VIEW_WINDOW(win));
2869         }
2870         else if (MODEST_IS_MAIN_WINDOW (win)) {
2871                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW(win));
2872         }
2873
2874         return result;
2875 }
2876
2877 static gboolean
2878 _msg_download_completed (ModestMainWindow *win)
2879 {
2880         const DimmedState *state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2881         return (state) ? state->any_marked_as_cached : TRUE;
2882 }
2883
2884 static void
2885 fill_list_of_caches (gpointer key, gpointer value, gpointer userdata)
2886 {
2887         GSList **send_queues = (GSList **) userdata;
2888         *send_queues = g_slist_prepend (*send_queues, value);
2889 }
2890
2891 static gboolean
2892 _selected_msg_sent_in_progress (ModestWindow *win)
2893 {
2894         const DimmedState *state = modest_window_get_dimming_state (win);
2895         return (state) ? state->sent_in_progress : TRUE;
2896 }
2897
2898
2899 static gboolean
2900 _invalid_folder_for_purge (ModestWindow *win,
2901                            ModestDimmingRule *rule)
2902 {
2903         TnyFolder *folder = NULL;
2904         TnyAccount *account = NULL;
2905         gboolean result = FALSE;
2906
2907         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2908
2909                 /* Get folder and account of message */
2910                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2911                 g_return_val_if_fail(msg != NULL, TRUE);
2912                 folder = tny_msg_get_folder (msg);
2913                 g_object_unref (msg);
2914                 if (folder == NULL) {
2915                         result = TRUE;
2916                         goto frees;
2917                 }
2918         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2919                 GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2920                                                                               MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2921                 if (!folder_view)
2922                         return FALSE;
2923                 folder = (TnyFolder *) modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
2924                 /* Could be a folder store */
2925                 if (folder == NULL || ! TNY_IS_FOLDER (folder))
2926                         goto frees;
2927         } else {
2928                 g_return_val_if_reached (FALSE);
2929         }
2930         account = modest_tny_folder_get_account (folder);
2931         if (account == NULL) goto frees;
2932
2933         /* Check account */
2934         if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (account))) {
2935                 TnyFolderType types[2];
2936                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
2937                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
2938
2939                 if (_selected_folder_is_any_of_type (win, types, 2)) {
2940                         result = TRUE;
2941                 }
2942         } else {
2943                 ModestProtocolType protocol_type = modest_tny_account_get_protocol_type (TNY_ACCOUNT (account));
2944                 /* If it's a remote folder then dim */
2945                 if (modest_protocol_registry_protocol_type_has_tag (modest_runtime_get_protocol_registry (),
2946                                                                     protocol_type,
2947                                                                     MODEST_PROTOCOL_REGISTRY_REMOTE_STORE_PROTOCOLS)) {
2948                         result = TRUE;
2949                 }
2950         }
2951
2952 frees:
2953         if (folder != NULL)
2954                 g_object_unref (folder);
2955         if (account != NULL)
2956                 g_object_unref (account);
2957
2958         return result;
2959 }
2960
2961 static gboolean
2962 _transfer_mode_enabled (ModestWindow *win)
2963 {
2964         gboolean result = FALSE;
2965
2966         /* Check dimming */
2967         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2968                 result = modest_msg_view_window_transfer_mode_enabled (MODEST_MSG_VIEW_WINDOW (win));
2969         } else if (MODEST_IS_MAIN_WINDOW(win)) {
2970                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW (win));
2971 #ifdef MODEST_TOOLKIT_HILDON2
2972         } else if (MODEST_IS_FOLDER_WINDOW (win)) {
2973                 result = modest_folder_window_transfer_mode_enabled (MODEST_FOLDER_WINDOW (win));
2974         } else if (MODEST_IS_HEADER_WINDOW (win)) {
2975                 result = modest_header_window_transfer_mode_enabled (MODEST_HEADER_WINDOW (win));
2976 #endif
2977         } else {
2978                 g_warning("_transfer_mode_enabled called with wrong window type");
2979         }
2980
2981         return result;
2982 }
2983
2984 static gboolean
2985 _selected_folder_has_subfolder_with_same_name (ModestWindow *win)
2986 {
2987         GtkWidget *folder_view = NULL;
2988         TnyFolderStore *folder = NULL;
2989         ModestEmailClipboard *clipboard = NULL;
2990         const gchar *folder_name = NULL;
2991         gboolean result = FALSE;
2992
2993         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
2994
2995         /*Get current parent folder */
2996         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2997                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2998         /* If no folder view, always dimmed */
2999         if (!folder_view) return FALSE;
3000
3001         /* Get selected folder as parent of new folder to create */
3002         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
3003         if (!(folder && TNY_IS_FOLDER(folder))) goto frees;
3004
3005         /* get modest clipboard and source folder */
3006         clipboard = modest_runtime_get_email_clipboard ();
3007         folder_name = modest_email_clipboard_get_folder_name (clipboard);
3008         if (folder_name == NULL) goto frees;
3009
3010         /* Check source subfolders names */
3011         result = modest_tny_folder_has_subfolder_with_name (folder, folder_name,
3012                                                             TRUE);
3013
3014         /* Free */
3015  frees:
3016         if (folder != NULL)
3017                 g_object_unref (folder);
3018
3019
3020         return result;
3021 }
3022
3023 static gboolean
3024 _all_msgs_in_sending_status (ModestHeaderView *header_view)
3025 {
3026         GtkTreeModel *model;
3027         GtkTreeIter iter;
3028         gboolean all_sending = TRUE;
3029
3030         model = gtk_tree_view_get_model (GTK_TREE_VIEW (header_view));
3031         if (gtk_tree_model_get_iter_first (model, &iter)) {
3032                 do {
3033                         TnyHeader *header;
3034
3035                         gtk_tree_model_get (model, &iter,
3036                                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
3037                                             &header,
3038                                             -1);
3039
3040                         if (header) {
3041                                 if (modest_tny_all_send_queues_get_msg_status (header) !=
3042                                     MODEST_TNY_SEND_QUEUE_SENDING)
3043                                         all_sending = FALSE;
3044                                 g_object_unref (header);
3045                         }
3046
3047                 } while (all_sending && gtk_tree_model_iter_next (model, &iter));
3048         }
3049         return all_sending;
3050 }
3051
3052 gboolean
3053 modest_ui_dimming_rules_on_save_to_drafts (ModestWindow *win,
3054                                            gpointer user_data)
3055 {
3056         ModestDimmingRule *rule = NULL;
3057
3058         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
3059         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3060         rule = MODEST_DIMMING_RULE (user_data);
3061
3062         /* Check dimmed rule */
3063         return !modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (win));
3064 }
3065
3066 gboolean
3067 modest_ui_dimming_rules_on_insert_image (ModestWindow *win,
3068                                          gpointer user_data)
3069 {
3070         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
3071
3072         ModestMsgEditFormat format =
3073           modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
3074
3075         return (format != MODEST_MSG_EDIT_FORMAT_HTML);
3076 }
3077
3078 static gboolean
3079 _send_receive_in_progress (ModestWindow *win)
3080 {
3081         ModestMailOperationQueue *queue;
3082         GSList *op_list, *node;
3083         gboolean found_send_receive;
3084
3085         queue = modest_runtime_get_mail_operation_queue ();
3086         op_list = modest_mail_operation_queue_get_by_source (queue, G_OBJECT (win));
3087
3088         found_send_receive = FALSE;
3089         for (node = op_list; node != NULL; node = g_slist_next (node)) {
3090                 ModestMailOperation *op;
3091
3092                 op = (ModestMailOperation *) node->data;
3093                 if (modest_mail_operation_get_type_operation (op) == MODEST_MAIL_OPERATION_TYPE_SEND_AND_RECEIVE) {
3094                         found_send_receive = TRUE;
3095                         break;
3096                 }
3097         }
3098
3099         if (op_list) {
3100                 g_slist_foreach (op_list, (GFunc) g_object_unref, NULL);
3101                 g_slist_free (op_list);
3102         }
3103
3104         return found_send_receive;
3105 }
3106
3107 static gboolean
3108 _msgs_send_in_progress (void)
3109 {
3110         ModestCacheMgr *cache_mgr;
3111         GHashTable *send_queue_cache;
3112         ModestTnySendQueue *send_queue;
3113         GSList *send_queues = NULL, *node = NULL;
3114         gboolean found = FALSE;
3115
3116         cache_mgr = modest_runtime_get_cache_mgr ();
3117         send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
3118                                                        MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
3119
3120         g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
3121
3122         for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
3123                 send_queue = MODEST_TNY_SEND_QUEUE (node->data);
3124
3125                 /* Check if msg uid is being processed inside send queue */
3126                 if (modest_tny_send_queue_sending_in_progress (send_queue)) {
3127                         found = TRUE;
3128                         break;
3129                 }
3130         }
3131
3132         g_slist_free (send_queues);
3133
3134         return found;
3135 }
3136
3137 /*****************************************************************************/
3138 /********************** HILDON2 only dimming rules ***************************/
3139 /*****************************************************************************/
3140
3141 #ifdef MODEST_TOOLKIT_HILDON2
3142 gboolean
3143 modest_ui_dimming_rules_on_header_window_move_to (ModestWindow *win, gpointer user_data)
3144 {
3145         ModestDimmingRule *rule = NULL;
3146         gboolean dimmed = FALSE;
3147
3148         g_return_val_if_fail (MODEST_IS_HEADER_WINDOW(win), FALSE);
3149         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3150         rule = MODEST_DIMMING_RULE (user_data);
3151
3152         /* Check dimmed rule */
3153         dimmed = _transfer_mode_enabled (win);
3154         if (dimmed)
3155                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
3156
3157         if (!dimmed)
3158                 dimmed = _forbid_outgoing_xfers (win);
3159
3160         if (!dimmed) {
3161                 GtkWidget *header_view;
3162                 TnyFolder *folder;
3163
3164                 header_view = GTK_WIDGET (modest_header_window_get_header_view (MODEST_HEADER_WINDOW (win)));
3165                 folder = modest_header_view_get_folder (MODEST_HEADER_VIEW (header_view));
3166                 if (folder) {
3167                         dimmed = (tny_folder_get_all_count (TNY_FOLDER (folder)) == 0) ||
3168                                 modest_header_view_is_empty (MODEST_HEADER_VIEW (header_view));
3169
3170                         if (!dimmed &&
3171                             (tny_folder_get_folder_type (TNY_FOLDER (folder)) == TNY_FOLDER_TYPE_OUTBOX)) {
3172                                 dimmed = _all_msgs_in_sending_status (MODEST_HEADER_VIEW (header_view));;
3173                         }
3174                         g_object_unref (folder);
3175                 }
3176         }
3177
3178         return dimmed;
3179 }
3180
3181 gboolean
3182 modest_ui_dimming_rules_on_folder_window_move_to (ModestWindow *win, gpointer user_data)
3183 {
3184         ModestDimmingRule *rule = NULL;
3185         gboolean dimmed = FALSE;
3186
3187         g_return_val_if_fail (MODEST_IS_FOLDER_WINDOW(win), FALSE);
3188         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3189         rule = MODEST_DIMMING_RULE (user_data);
3190
3191         /* Check dimmed rule */
3192         dimmed = _transfer_mode_enabled (win);
3193         if (dimmed)
3194                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
3195
3196         if (!dimmed)
3197                 dimmed = _forbid_outgoing_xfers (win);
3198
3199         if (!dimmed && MODEST_IS_FOLDER_WINDOW (win)) {
3200                 ModestFolderView *folder_view;
3201                 folder_view = modest_folder_window_get_folder_view (MODEST_FOLDER_WINDOW (win));
3202                 dimmed = !modest_folder_view_any_folder_fulfils_rules (folder_view,
3203                                                                        MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE);
3204         }
3205
3206         if (!dimmed) {
3207                 dimmed = _transfer_mode_enabled (win);
3208                 if (dimmed)
3209                         modest_dimming_rule_set_notification (rule, "");
3210         }
3211
3212         return dimmed;
3213 }
3214
3215 gboolean
3216 modest_ui_dimming_rules_on_folder_window_delete (ModestWindow *win, gpointer user_data)
3217 {
3218         ModestDimmingRule *rule = NULL;
3219         gboolean dimmed = FALSE;
3220
3221         g_return_val_if_fail (MODEST_IS_FOLDER_WINDOW(win), FALSE);
3222         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3223         rule = MODEST_DIMMING_RULE (user_data);
3224
3225         /* Check dimmed rule */
3226         dimmed = _transfer_mode_enabled (win);
3227         if (dimmed)
3228                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
3229
3230         if (MODEST_IS_FOLDER_WINDOW (win)) {
3231                 ModestFolderView *folder_view;
3232                 folder_view = modest_folder_window_get_folder_view (MODEST_FOLDER_WINDOW (win));
3233                 dimmed = !modest_folder_view_any_folder_fulfils_rules (folder_view,
3234                                                                        MODEST_FOLDER_RULES_FOLDER_NON_DELETABLE);
3235         }
3236
3237         if (!dimmed) {
3238                 dimmed = _transfer_mode_enabled (win);
3239                 if (dimmed)
3240                         modest_dimming_rule_set_notification (rule, "");
3241         }
3242
3243         return dimmed;
3244 }
3245
3246 gboolean
3247 modest_ui_dimming_rules_on_edit_accounts (ModestWindow *win, gpointer user_data)
3248 {
3249         return !modest_account_mgr_has_accounts (modest_runtime_get_account_mgr (), TRUE);
3250 }
3251 #endif