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         GSList *recipients = NULL;
2077         gboolean has_recipients_to_add;
2078
2079         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2080
2081         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2082                 TnyMsg *msg;
2083
2084                 msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2085
2086                 /* Message is loaded asynchronously, so this could happen */
2087                 if (!msg) {
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                         recipients = modest_tny_msg_get_all_recipients_list (msg);
2098                         g_object_unref (msg);
2099                 }
2100         } else if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
2101                 /* Check if there are pending addresses to add */
2102                 return !modest_msg_edit_window_has_pending_addresses ((ModestMsgEditWindow *) win);
2103         }
2104
2105         has_recipients_to_add = FALSE;
2106
2107         if (recipients) {
2108                 GSList *node;
2109                 for (node = recipients; node != NULL; node = g_slist_next (node)) {
2110                         const gchar *recipient = (const gchar *) node->data;
2111                         if (modest_text_utils_validate_recipient (recipient, NULL)) {
2112                                 if (!modest_address_book_has_address (recipient)) {
2113                                         has_recipients_to_add = TRUE;
2114                                         break;
2115                                 }
2116                         }
2117                 }
2118                 g_slist_foreach (recipients, (GFunc) g_free, NULL);
2119                 g_slist_free (recipients);
2120         }
2121
2122         return !has_recipients_to_add;
2123 }
2124 #else
2125 gboolean
2126 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
2127 {
2128         ModestDimmingRule *rule = NULL;
2129         gboolean dimmed = FALSE;
2130         GtkWidget *focused = NULL;
2131
2132         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2133         rule = MODEST_DIMMING_RULE (user_data);
2134         focused = gtk_window_get_focus (GTK_WINDOW (win));
2135
2136         dimmed = !focused;
2137
2138         if (!dimmed) {
2139                 gchar *selection = NULL;
2140                 if (GTK_IS_TEXT_VIEW (focused)) {
2141                         GtkTextIter start, end;
2142                         GtkTextBuffer *buffer = NULL;
2143                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2144                         if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end)) {
2145                                 selection = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
2146                         }
2147                 } else if (GTK_IS_LABEL (focused)) {
2148                         selection = modest_text_utils_label_get_selection (GTK_LABEL (focused));
2149                 } else {
2150                         gboolean do_check = TRUE;
2151                         GtkClipboard *clipboard;
2152                         if (GTK_IS_HTML (focused)) {
2153                                 const gchar *sel;
2154                                 int len = -1;
2155                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
2156                                 do_check = !((sel == NULL) || (sel[0] == '\0'));
2157                         } else if (MODEST_IS_ATTACHMENTS_VIEW (focused)) {
2158                                 do_check = FALSE;
2159                         }
2160                         if (do_check) {
2161                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
2162                                 selection = gtk_clipboard_wait_for_text (clipboard);
2163                         } else {
2164                                 selection = NULL;
2165                         }
2166                 }
2167                 dimmed = !((selection != NULL) && (modest_text_utils_validate_recipient (selection, NULL)));
2168         }
2169
2170         return dimmed;
2171 }
2172 #endif
2173
2174 /* *********************** static utility functions ******************** */
2175
2176
2177 static gboolean
2178 _selected_folder_not_writeable (ModestMainWindow *win,
2179                                 gboolean for_paste)
2180 {
2181         GtkWidget *folder_view = NULL;
2182         TnyFolderStore *parent_folder = NULL;
2183         ModestEmailClipboard *clipboard = NULL;
2184         ModestTnyFolderRules rules;
2185         gboolean is_local_acc = FALSE;
2186         gboolean xfer_folders = FALSE;
2187         gboolean result = FALSE;
2188
2189         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2190
2191         /* Get folder view */
2192         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2193                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2194         /* If no folder view, always dimmed */
2195         if (!folder_view)
2196                 return TRUE;
2197
2198         /* Get selected folder as parent of new folder to create */
2199         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2200         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2201                 /* If it's the local account and its transfering folders, then do not dim */
2202                 if (TNY_IS_ACCOUNT (parent_folder)) {
2203                         is_local_acc = modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder));
2204                         if (for_paste) {
2205                                 clipboard = modest_runtime_get_email_clipboard ();
2206                                 xfer_folders = modest_email_clipboard_folder_copied (clipboard);
2207                         }
2208                 }
2209
2210                 if (for_paste)
2211                         result = !(is_local_acc && xfer_folders);
2212                 else
2213                         result = !is_local_acc;
2214                 goto frees;
2215         }
2216
2217         /* Check dimmed rule */
2218         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2219         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
2220
2221         /* free */
2222  frees:
2223         if (parent_folder != NULL)
2224                 g_object_unref (parent_folder);
2225
2226         return result;
2227 }
2228
2229 static gboolean
2230 _selected_folder_not_deletable (ModestMainWindow *win)
2231 {
2232         GtkWidget *folder_view = NULL;
2233         TnyFolderStore *parent_folder = NULL;
2234         ModestTnyFolderRules rules;
2235         gboolean result = FALSE;
2236
2237         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2238
2239         /* Get folder view */
2240         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2241                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2242         /* If no folder view, always dimmed */
2243         if (!folder_view)
2244                 return TRUE;
2245
2246         /* Get selected folder as parent of new folder to create */
2247         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2248         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2249                 result = TRUE;
2250                 goto frees;
2251         }
2252
2253         /* Check dimmed rule */
2254         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2255         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_DELETABLE;
2256
2257         /* free */
2258  frees:
2259         if (parent_folder != NULL)
2260                 g_object_unref (parent_folder);
2261
2262         return result;
2263 }
2264
2265 static gboolean
2266 _selected_folder_not_moveable (ModestMainWindow *win)
2267 {
2268         GtkWidget *folder_view = NULL;
2269         TnyFolderStore *parent_folder = NULL;
2270         ModestTnyFolderRules rules;
2271         gboolean result = FALSE;
2272
2273         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2274
2275         /* Get folder view */
2276         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2277                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2278         /* If no folder view, always dimmed */
2279         if (!folder_view)
2280                 return TRUE;
2281
2282         /* Get selected folder as parent of new folder to create */
2283         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2284         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2285                 result = TRUE;
2286                 goto frees;
2287         }
2288
2289         /* Check dimmed rule */
2290         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2291         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE;
2292
2293         /* free */
2294  frees:
2295         if (parent_folder != NULL)
2296                 g_object_unref (parent_folder);
2297
2298         return result;
2299 }
2300
2301 static gboolean
2302 _selected_folder_not_renameable (ModestMainWindow *win)
2303 {
2304         GtkWidget *folder_view = NULL;
2305         TnyFolderStore *parent_folder = NULL;
2306         ModestTnyFolderRules rules;
2307         gboolean result = FALSE;
2308
2309         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2310
2311         /* Get folder view */
2312         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2313                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2314         /* If no folder view, always dimmed */
2315         if (!folder_view)
2316                 return TRUE;
2317
2318         /* Get selected folder as parent of new folder to create */
2319         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2320         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2321                 result = TRUE;
2322                 goto frees;
2323         }
2324
2325         /* Check dimmed rule */
2326         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2327         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_RENAMEABLE;
2328
2329         /* free */
2330  frees:
2331         if (parent_folder != NULL)
2332                 g_object_unref (parent_folder);
2333
2334         return result;
2335 }
2336
2337 static gboolean
2338 _selected_folder_is_root_or_inbox (ModestMainWindow *win)
2339 {
2340         TnyFolderType types[2];
2341         gboolean result = FALSE;
2342
2343         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2344
2345         types[0] = TNY_FOLDER_TYPE_ROOT;
2346         types[1] = TNY_FOLDER_TYPE_INBOX;
2347
2348         /* Check folder type */
2349         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 2);
2350
2351         /* Check pop and MMC accounts */
2352         if (!result) {
2353                 result = _selected_folder_is_root (win);
2354         }
2355
2356         return result;
2357 }
2358
2359
2360 static gboolean
2361 _selected_folder_is_root (ModestMainWindow *win)
2362 {
2363         TnyFolderType types[1];
2364         gboolean result = FALSE;
2365
2366         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2367
2368         /* All accounts are root items: */
2369         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2370                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2371         if (folder_view) {
2372                 gboolean is_account = FALSE;
2373                 TnyFolderStore *folder_store =
2374                         modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2375                 if (folder_store) {
2376                         is_account = TNY_IS_ACCOUNT (folder_store);
2377
2378                         g_object_unref (folder_store);
2379                         folder_store = NULL;
2380                 }
2381
2382                 if (is_account)
2383                         return TRUE;
2384         }
2385
2386         /* Try something more precise: */
2387         types[0] = TNY_FOLDER_TYPE_ROOT;
2388
2389         /* Check folder type */
2390         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 1);
2391
2392         return result;
2393 }
2394
2395 static gboolean
2396 _header_view_is_all_selected (ModestMainWindow *win)
2397 {
2398         const DimmedState *state = NULL;
2399
2400         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2401
2402         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2403
2404         return (state) ? state->all_selected : TRUE;
2405 }
2406
2407 static gboolean
2408 _selected_folder_is_empty (ModestMainWindow *win)
2409 {
2410         GtkWidget *folder_view = NULL, *header_view = NULL;
2411         TnyFolderStore *folder = NULL;
2412         gboolean result = FALSE;
2413
2414         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2415
2416         /* Get folder view */
2417         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2418                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2419
2420         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2421                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
2422
2423         /* If no folder view, always dimmed */
2424         if (!folder_view || !header_view)
2425                 return TRUE;
2426
2427         /* Get selected folder as parent of new folder to create */
2428         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2429         if (!(folder && TNY_IS_FOLDER(folder))) {
2430                 if (folder)
2431                         g_object_unref (folder);
2432                 return TRUE;
2433         }
2434
2435         /* Check folder type */
2436         if (modest_header_view_is_empty (MODEST_HEADER_VIEW (header_view)) ||
2437             tny_folder_get_all_count (TNY_FOLDER (folder)) == 0)
2438                 result = TRUE;
2439
2440         /* free */
2441         g_object_unref (folder);
2442
2443         return result;
2444 }
2445
2446 static gboolean
2447 _folder_view_has_focus (ModestWindow *win)
2448 {
2449         GtkWidget *folder_view = NULL;
2450
2451         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2452
2453         /* Get folder view */
2454         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2455                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2456         if (!folder_view)
2457                 return FALSE;
2458
2459         if (gtk_widget_is_focus(folder_view))
2460                 return TRUE;
2461
2462         return FALSE;
2463 }
2464
2465 static gboolean
2466 _selected_folder_is_same_as_source (ModestWindow *win)
2467 {
2468         ModestEmailClipboard *clipboard = NULL;
2469         GtkWidget *folder_view = NULL;
2470         TnyFolderStore *folder = NULL;
2471         gboolean result = FALSE;
2472
2473         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2474
2475         /* Get folder view */
2476         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2477                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2478         if (!folder_view)
2479                 return FALSE;
2480
2481         /* Get selected folder as destination folder */
2482         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2483         if (!(folder && TNY_IS_FOLDER(folder))) {
2484                 result = FALSE;
2485                 goto frees;
2486         }
2487
2488         /* Check clipboard is cleared */
2489         clipboard = modest_runtime_get_email_clipboard ();
2490         if (modest_email_clipboard_cleared (clipboard)) {
2491                 result = FALSE;
2492                 goto frees;
2493         }
2494
2495         /* Check source folder */
2496         result = modest_email_clipboard_check_source_folder (clipboard, TNY_FOLDER (folder));
2497
2498         /* Free */
2499  frees:
2500         g_object_unref (folder);
2501
2502         return result;
2503 }
2504
2505 static gboolean
2506 _selected_folder_is_any_of_type (ModestWindow *win,
2507                                  TnyFolderType types[],
2508                                  guint ntypes)
2509 {
2510         GtkWidget *folder_view = NULL;
2511         TnyFolderStore *folder = NULL;
2512         TnyFolderType folder_type;
2513         guint i=0;
2514         gboolean result = FALSE;
2515
2516         /*Get current folder */
2517         if (MODEST_IS_MAIN_WINDOW(win)) {
2518
2519                 /* Get folder view */
2520                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2521                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2522                 /* If no folder view, always dimmed */
2523                 if (!folder_view)
2524                         return FALSE;
2525
2526                 /* Get selected folder as parent of new folder to create */
2527                 folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2528
2529                 if (!(folder && TNY_IS_FOLDER(folder))) {
2530                         if (folder)
2531                                 g_object_unref (folder);
2532                         return FALSE;
2533                 }
2534
2535                 /* Check folder type */
2536                 result = _folder_is_any_of_type (TNY_FOLDER(folder), types, ntypes);
2537         }
2538         else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2539                 folder_type = modest_msg_view_window_get_folder_type (MODEST_MSG_VIEW_WINDOW (win));
2540                 for (i=0; i < ntypes; i++) {
2541                         result = result || folder_type == types[i];
2542                 }
2543         }
2544
2545
2546         /* free */
2547         if (folder)
2548                 g_object_unref (folder);
2549
2550         return result;
2551 }
2552
2553 static gboolean
2554 _folder_is_any_of_type (TnyFolder *folder,
2555                         TnyFolderType types[],
2556                         guint ntypes)
2557 {
2558         TnyFolderType folder_type;
2559         gboolean result = FALSE;
2560         guint i;
2561
2562         g_return_val_if_fail (TNY_IS_FOLDER(folder), FALSE);
2563
2564         /* Get folder type */
2565         folder_type = modest_tny_folder_guess_folder_type (folder);
2566         if (folder_type == TNY_FOLDER_TYPE_INVALID)
2567                 g_warning ("%s: BUG: TNY_FOLDER_TYPE_INVALID", __FUNCTION__);
2568
2569         /* Check foler type */
2570         for (i=0; i < ntypes; i++) {
2571                 result = result || folder_type == types[i];
2572         }
2573
2574         return result;
2575 }
2576
2577 static gboolean
2578 _clipboard_is_empty (ModestWindow *win)
2579 {
2580         gboolean result = FALSE;
2581
2582         if (MODEST_IS_MAIN_WINDOW (win)) {
2583                 ModestEmailClipboard *clipboard = NULL;
2584                 clipboard = modest_runtime_get_email_clipboard ();
2585                 if (modest_email_clipboard_cleared (clipboard))
2586                  result = TRUE;
2587         }
2588
2589         return result;
2590 }
2591
2592 static gboolean
2593 _invalid_clipboard_selected (ModestWindow *win,
2594                              ModestDimmingRule *rule)
2595 {
2596         gboolean result = FALSE;
2597         GtkWidget *focused = NULL;
2598
2599         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2600
2601         /* Get focuesed widget */
2602         focused = gtk_window_get_focus (GTK_WINDOW (win));
2603
2604         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
2605                 gboolean has_selection = FALSE;
2606                 if (GTK_IS_TEXT_VIEW (focused)) {
2607                         GtkTextBuffer *buffer = NULL;
2608                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2609                         has_selection = modest_text_utils_buffer_selection_is_valid (buffer);
2610                 } else if (GTK_IS_EDITABLE (focused)) {
2611                         has_selection = gtk_editable_get_selection_bounds (GTK_EDITABLE (focused), NULL, NULL);
2612                 }
2613                 result = !has_selection;
2614         } else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2615                 if (focused) {
2616                         MODEST_DEBUG_BLOCK (g_debug ("FOCUSED %s", g_type_name (G_TYPE_FROM_INSTANCE (focused))););
2617                         if (GTK_IS_LABEL (focused) &&
2618                             !gtk_label_get_selection_bounds (GTK_LABEL (focused), NULL, NULL)) {
2619                                 result = TRUE;
2620                         } else if (GTK_IS_TEXT_VIEW (focused)) {
2621                                 GtkTextBuffer *buffer;
2622                                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2623                                 result = !gtk_text_buffer_get_has_selection (buffer);
2624                         } else if (GTK_IS_HTML (focused)) {
2625                                 const gchar *sel;
2626                                 int len = -1;
2627                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
2628                                 result = ((sel == NULL) || (sel[0] == '\0'));
2629                         } else if (MODEST_IS_ATTACHMENTS_VIEW (focused)) {
2630                                 result = TRUE;
2631                         } else {
2632                                 GtkClipboard *clipboard;
2633                                 gchar *selection;
2634
2635                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
2636                                 /* Get clipboard selection*/
2637                                 selection = gtk_clipboard_wait_for_text (clipboard);
2638                                 /* Check dimming */
2639                                 result = (selection == NULL);
2640                                 g_free (selection);
2641                         }
2642                 } else {
2643                         result = TRUE;
2644                 }
2645
2646                 if (result)
2647                         modest_dimming_rule_set_notification (rule, "");
2648
2649         }
2650         else if (MODEST_IS_MAIN_WINDOW (win)) {
2651                 const DimmedState *state = NULL;
2652
2653                 /* Check dimming */
2654                 state = modest_window_get_dimming_state (win);
2655                 if (state)
2656                         result = state->n_selected == 0;
2657                 if (result)
2658                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2659         }
2660
2661         return result;
2662 }
2663
2664
2665 static gboolean
2666 _invalid_attach_selected (ModestWindow *win,
2667                           gboolean unique,
2668                           gboolean for_view,
2669                           gboolean for_remove,
2670                           ModestDimmingRule *rule)
2671 {
2672         TnyList *attachments;
2673         gint n_selected;
2674         TnyHeaderFlags flags;
2675         gboolean nested_attachments = FALSE;
2676         gboolean selected_messages = FALSE;
2677         gboolean result = FALSE;
2678
2679         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2680
2681         if (MODEST_IS_MAIN_WINDOW (win)) {
2682                 flags = TNY_HEADER_FLAG_ATTACHMENTS;
2683                 if (!result) {
2684                         const DimmedState *state = NULL;
2685                         state = modest_window_get_dimming_state (win);
2686                         result = !state->any_has_attachments;
2687                 }
2688         }
2689         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2690
2691                 /* Get selected atachments */
2692                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2693                 n_selected = tny_list_get_length (attachments);
2694
2695                 /* Check unique */
2696                 if (!result) {
2697                         if (unique)
2698                                 result = n_selected != 1;
2699                         else
2700
2701                                 result = n_selected < 1;
2702                 }
2703
2704                 /* Check attached type (view operation not required) */
2705                 if (!result && !for_view)  {
2706                         TnyIterator *iter;
2707                         iter = tny_list_create_iterator (attachments);
2708                         while (!tny_iterator_is_done (iter) && !result) {
2709 #ifdef MODEST_TOOLKIT_HILDON2
2710                                 gboolean not_selectable = FALSE;
2711 #endif
2712                                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2713                                 TnyList *nested_list = tny_simple_list_new ();
2714                                 tny_mime_part_get_parts (mime_part, nested_list);
2715
2716                                 if (!for_remove && modest_tny_mime_part_is_msg (mime_part)) {
2717                                         TnyMsg *window_msg;
2718                                         window_msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2719                                         if ((TnyMimePart *) window_msg != mime_part) {
2720                                                 selected_messages = TRUE;
2721 #ifdef MODEST_TOOLKIT_HILDON2
2722                                                 not_selectable = TRUE;
2723 #else
2724                                                 result = TRUE;
2725 #endif
2726                                         }
2727                                         g_object_unref (window_msg);
2728                                 }
2729                                 if (!for_remove && tny_list_get_length (nested_list) > 0) {
2730                                         nested_attachments = TRUE;
2731 #ifdef MODEST_TOOLKIT_HILDON2
2732                                         not_selectable = TRUE;
2733 #else
2734                                         result = TRUE;
2735 #endif
2736                                 }
2737 #ifdef MODEST_TOOLKIT_HILDON2
2738                                 if (not_selectable)
2739                                         n_selected --;
2740 #endif
2741                                 g_object_unref (nested_list);
2742                                 g_object_unref (mime_part);
2743                                 tny_iterator_next (iter);
2744                         }
2745                         g_object_unref (iter);
2746                 }
2747
2748                 /* No valid attachment available */
2749                 if (n_selected == 0)
2750                         result = TRUE;
2751
2752                 /* Set notifications */
2753                 if (result && rule != NULL) {
2754                         if (selected_messages) {
2755                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_save_attach_mail"));
2756                         } else if (nested_attachments) {
2757                                 modest_dimming_rule_set_notification (rule, _("FIXME:unable to save attachments with nested elements"));
2758                         } else if (n_selected == 0) {
2759                                 modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
2760                         } else if (unique) {
2761                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_display_more"));
2762                         }
2763                 }
2764
2765                 /* Free */
2766                 g_object_unref (attachments);
2767         }
2768
2769         return result;
2770 }
2771
2772 static gboolean
2773 _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule)
2774 {
2775         TnyList *attachments = NULL;
2776         TnyIterator *iter;
2777         gint purged = 0;
2778         gint n_attachments = 0;
2779         gboolean result = FALSE;
2780
2781         /* This should check if _all_ the attachments are already purged. If only some
2782          * of them are purged, then it does not cause dim as there's a confirmation dialog
2783          * for removing only local attachments */
2784
2785         /* Get selected atachments */
2786         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2787                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2788         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2789                 /* If we're in main window, we won't know if there are already purged attachments */
2790                 return FALSE;
2791         }
2792
2793         if (attachments == NULL)
2794                 return FALSE;
2795
2796         if (tny_list_get_length (attachments) == 0) {
2797                 g_object_unref (attachments);
2798                 return FALSE;
2799         }
2800
2801         iter = tny_list_create_iterator (attachments);
2802         while (!tny_iterator_is_done (iter)) {
2803                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2804                 if (tny_mime_part_is_purged (mime_part)) {
2805                         purged++;
2806                 }
2807                 n_attachments++;
2808                 g_object_unref (mime_part);
2809                 tny_iterator_next (iter);
2810         }
2811         g_object_unref (iter);
2812
2813         /* Free */
2814         g_object_unref (attachments);
2815
2816         if (all)
2817                 result = (purged == n_attachments);
2818         else
2819                 result = (purged > 0);
2820
2821         /* This string no longer exists, refer to NB#75415 for more info
2822         if (result && (rule != NULL))
2823                 modest_dimming_rule_set_notification (rule, _("mail_ib_attachment_already_purged"));
2824         */
2825
2826         return result;
2827 }
2828
2829 static gboolean
2830 _invalid_msg_selected (ModestMainWindow *win,
2831                        gboolean unique,
2832                        ModestDimmingRule *rule)
2833 {
2834         GtkWidget *folder_view = NULL;
2835         const DimmedState *state = NULL;
2836         gboolean result = FALSE;
2837         gint n_selected = 0;
2838
2839         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2840         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (rule), FALSE);
2841
2842         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2843         if (state)
2844                 n_selected = state->n_selected;
2845
2846         /* Get folder view to check focus */
2847         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2848                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2849
2850         /* Check dimmed rule (TODO: check focus on widgets */
2851         if (!result) {
2852                 result = ((n_selected == 0 ) ||
2853                           (gtk_widget_is_focus (folder_view)));
2854                 if (result)
2855                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2856         }
2857         if (!result && unique) {
2858                 result = n_selected > 1;
2859                 if (result)
2860                         modest_dimming_rule_set_notification (rule, _("mcen_ib_select_one_message"));
2861         }
2862
2863         return result;
2864 }
2865
2866
2867 static gboolean
2868 _msg_download_in_progress (ModestWindow *win)
2869 {
2870         gboolean result = FALSE;
2871
2872         g_return_val_if_fail (MODEST_IS_WINDOW (win), FALSE);
2873
2874         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2875                 result = modest_msg_view_window_toolbar_on_transfer_mode (MODEST_MSG_VIEW_WINDOW(win));
2876         }
2877         else if (MODEST_IS_MAIN_WINDOW (win)) {
2878                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW(win));
2879         }
2880
2881         return result;
2882 }
2883
2884 static gboolean
2885 _msg_download_completed (ModestMainWindow *win)
2886 {
2887         const DimmedState *state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2888         return (state) ? state->any_marked_as_cached : TRUE;
2889 }
2890
2891 static void
2892 fill_list_of_caches (gpointer key, gpointer value, gpointer userdata)
2893 {
2894         GSList **send_queues = (GSList **) userdata;
2895         *send_queues = g_slist_prepend (*send_queues, value);
2896 }
2897
2898 static gboolean
2899 _selected_msg_sent_in_progress (ModestWindow *win)
2900 {
2901         const DimmedState *state = modest_window_get_dimming_state (win);
2902         return (state) ? state->sent_in_progress : TRUE;
2903 }
2904
2905
2906 static gboolean
2907 _invalid_folder_for_purge (ModestWindow *win,
2908                            ModestDimmingRule *rule)
2909 {
2910         TnyFolder *folder = NULL;
2911         TnyAccount *account = NULL;
2912         gboolean result = FALSE;
2913
2914         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2915
2916                 /* Get folder and account of message */
2917                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2918                 g_return_val_if_fail(msg != NULL, TRUE);
2919                 folder = tny_msg_get_folder (msg);
2920                 g_object_unref (msg);
2921                 if (folder == NULL) {
2922                         result = TRUE;
2923                         goto frees;
2924                 }
2925         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2926                 GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2927                                                                               MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2928                 if (!folder_view)
2929                         return FALSE;
2930                 folder = (TnyFolder *) modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
2931                 /* Could be a folder store */
2932                 if (folder == NULL || ! TNY_IS_FOLDER (folder))
2933                         goto frees;
2934         } else {
2935                 g_return_val_if_reached (FALSE);
2936         }
2937         account = modest_tny_folder_get_account (folder);
2938         if (account == NULL) goto frees;
2939
2940         /* Check account */
2941         if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (account))) {
2942                 TnyFolderType types[2];
2943                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
2944                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
2945
2946                 if (_selected_folder_is_any_of_type (win, types, 2)) {
2947                         result = TRUE;
2948                 }
2949         } else {
2950                 ModestProtocolType protocol_type = modest_tny_account_get_protocol_type (TNY_ACCOUNT (account));
2951                 /* If it's a remote folder then dim */
2952                 if (modest_protocol_registry_protocol_type_has_tag (modest_runtime_get_protocol_registry (),
2953                                                                     protocol_type,
2954                                                                     MODEST_PROTOCOL_REGISTRY_REMOTE_STORE_PROTOCOLS)) {
2955                         result = TRUE;
2956                 }
2957         }
2958
2959 frees:
2960         if (folder != NULL)
2961                 g_object_unref (folder);
2962         if (account != NULL)
2963                 g_object_unref (account);
2964
2965         return result;
2966 }
2967
2968 static gboolean
2969 _transfer_mode_enabled (ModestWindow *win)
2970 {
2971         gboolean result = FALSE;
2972
2973         /* Check dimming */
2974         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2975                 result = modest_msg_view_window_transfer_mode_enabled (MODEST_MSG_VIEW_WINDOW (win));
2976         } else if (MODEST_IS_MAIN_WINDOW(win)) {
2977                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW (win));
2978 #ifdef MODEST_TOOLKIT_HILDON2
2979         } else if (MODEST_IS_FOLDER_WINDOW (win)) {
2980                 result = modest_folder_window_transfer_mode_enabled (MODEST_FOLDER_WINDOW (win));
2981         } else if (MODEST_IS_HEADER_WINDOW (win)) {
2982                 result = modest_header_window_transfer_mode_enabled (MODEST_HEADER_WINDOW (win));
2983 #endif
2984         } else {
2985                 g_warning("_transfer_mode_enabled called with wrong window type");
2986         }
2987
2988         return result;
2989 }
2990
2991 static gboolean
2992 _selected_folder_has_subfolder_with_same_name (ModestWindow *win)
2993 {
2994         GtkWidget *folder_view = NULL;
2995         TnyFolderStore *folder = NULL;
2996         ModestEmailClipboard *clipboard = NULL;
2997         const gchar *folder_name = NULL;
2998         gboolean result = FALSE;
2999
3000         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
3001
3002         /*Get current parent folder */
3003         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
3004                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
3005         /* If no folder view, always dimmed */
3006         if (!folder_view) return FALSE;
3007
3008         /* Get selected folder as parent of new folder to create */
3009         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
3010         if (!(folder && TNY_IS_FOLDER(folder))) goto frees;
3011
3012         /* get modest clipboard and source folder */
3013         clipboard = modest_runtime_get_email_clipboard ();
3014         folder_name = modest_email_clipboard_get_folder_name (clipboard);
3015         if (folder_name == NULL) goto frees;
3016
3017         /* Check source subfolders names */
3018         result = modest_tny_folder_has_subfolder_with_name (folder, folder_name,
3019                                                             TRUE);
3020
3021         /* Free */
3022  frees:
3023         if (folder != NULL)
3024                 g_object_unref (folder);
3025
3026
3027         return result;
3028 }
3029
3030 static gboolean
3031 _all_msgs_in_sending_status (ModestHeaderView *header_view)
3032 {
3033         GtkTreeModel *model;
3034         GtkTreeIter iter;
3035         gboolean all_sending = TRUE;
3036
3037         model = gtk_tree_view_get_model (GTK_TREE_VIEW (header_view));
3038         if (gtk_tree_model_get_iter_first (model, &iter)) {
3039                 do {
3040                         TnyHeader *header;
3041
3042                         gtk_tree_model_get (model, &iter,
3043                                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
3044                                             &header,
3045                                             -1);
3046
3047                         if (header) {
3048                                 if (modest_tny_all_send_queues_get_msg_status (header) !=
3049                                     MODEST_TNY_SEND_QUEUE_SENDING)
3050                                         all_sending = FALSE;
3051                                 g_object_unref (header);
3052                         }
3053
3054                 } while (all_sending && gtk_tree_model_iter_next (model, &iter));
3055         }
3056         return all_sending;
3057 }
3058
3059 gboolean
3060 modest_ui_dimming_rules_on_save_to_drafts (ModestWindow *win,
3061                                            gpointer user_data)
3062 {
3063         ModestDimmingRule *rule = NULL;
3064
3065         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
3066         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3067         rule = MODEST_DIMMING_RULE (user_data);
3068
3069         /* Check dimmed rule */
3070         return !modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (win));
3071 }
3072
3073 gboolean
3074 modest_ui_dimming_rules_on_insert_image (ModestWindow *win,
3075                                          gpointer user_data)
3076 {
3077         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
3078
3079         ModestMsgEditFormat format =
3080           modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
3081
3082         return (format != MODEST_MSG_EDIT_FORMAT_HTML);
3083 }
3084
3085 static gboolean
3086 _send_receive_in_progress (ModestWindow *win)
3087 {
3088         ModestMailOperationQueue *queue;
3089         GSList *op_list, *node;
3090         gboolean found_send_receive;
3091
3092         queue = modest_runtime_get_mail_operation_queue ();
3093         op_list = modest_mail_operation_queue_get_by_source (queue, G_OBJECT (win));
3094
3095         found_send_receive = FALSE;
3096         for (node = op_list; node != NULL; node = g_slist_next (node)) {
3097                 ModestMailOperation *op;
3098
3099                 op = (ModestMailOperation *) node->data;
3100                 if (modest_mail_operation_get_type_operation (op) == MODEST_MAIL_OPERATION_TYPE_SEND_AND_RECEIVE) {
3101                         found_send_receive = TRUE;
3102                         break;
3103                 }
3104         }
3105
3106         if (op_list) {
3107                 g_slist_foreach (op_list, (GFunc) g_object_unref, NULL);
3108                 g_slist_free (op_list);
3109         }
3110
3111         return found_send_receive;
3112 }
3113
3114 static gboolean
3115 _msgs_send_in_progress (void)
3116 {
3117         ModestCacheMgr *cache_mgr;
3118         GHashTable *send_queue_cache;
3119         ModestTnySendQueue *send_queue;
3120         GSList *send_queues = NULL, *node = NULL;
3121         gboolean found = FALSE;
3122
3123         cache_mgr = modest_runtime_get_cache_mgr ();
3124         send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
3125                                                        MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
3126
3127         g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
3128
3129         for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
3130                 send_queue = MODEST_TNY_SEND_QUEUE (node->data);
3131
3132                 /* Check if msg uid is being processed inside send queue */
3133                 if (modest_tny_send_queue_sending_in_progress (send_queue)) {
3134                         found = TRUE;
3135                         break;
3136                 }
3137         }
3138
3139         g_slist_free (send_queues);
3140
3141         return found;
3142 }
3143
3144 /*****************************************************************************/
3145 /********************** HILDON2 only dimming rules ***************************/
3146 /*****************************************************************************/
3147
3148 #ifdef MODEST_TOOLKIT_HILDON2
3149 gboolean
3150 modest_ui_dimming_rules_on_header_window_move_to (ModestWindow *win, gpointer user_data)
3151 {
3152         ModestDimmingRule *rule = NULL;
3153         gboolean dimmed = FALSE;
3154
3155         g_return_val_if_fail (MODEST_IS_HEADER_WINDOW(win), FALSE);
3156         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3157         rule = MODEST_DIMMING_RULE (user_data);
3158
3159         /* Check dimmed rule */
3160         dimmed = _transfer_mode_enabled (win);
3161         if (dimmed)
3162                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
3163
3164         if (!dimmed)
3165                 dimmed = _forbid_outgoing_xfers (win);
3166
3167         if (!dimmed) {
3168                 GtkWidget *header_view;
3169                 TnyFolder *folder;
3170
3171                 header_view = GTK_WIDGET (modest_header_window_get_header_view (MODEST_HEADER_WINDOW (win)));
3172                 folder = modest_header_view_get_folder (MODEST_HEADER_VIEW (header_view));
3173                 if (folder) {
3174                         dimmed = (tny_folder_get_all_count (TNY_FOLDER (folder)) == 0) ||
3175                                 modest_header_view_is_empty (MODEST_HEADER_VIEW (header_view));
3176
3177                         if (!dimmed &&
3178                             (tny_folder_get_folder_type (TNY_FOLDER (folder)) == TNY_FOLDER_TYPE_OUTBOX)) {
3179                                 dimmed = _all_msgs_in_sending_status (MODEST_HEADER_VIEW (header_view));;
3180                         }
3181                         g_object_unref (folder);
3182                 }
3183         }
3184
3185         return dimmed;
3186 }
3187
3188 gboolean
3189 modest_ui_dimming_rules_on_folder_window_move_to (ModestWindow *win, gpointer user_data)
3190 {
3191         ModestDimmingRule *rule = NULL;
3192         gboolean dimmed = FALSE;
3193
3194         g_return_val_if_fail (MODEST_IS_FOLDER_WINDOW(win), FALSE);
3195         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3196         rule = MODEST_DIMMING_RULE (user_data);
3197
3198         /* Check dimmed rule */
3199         dimmed = _transfer_mode_enabled (win);
3200         if (dimmed)
3201                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
3202
3203         if (!dimmed)
3204                 dimmed = _forbid_outgoing_xfers (win);
3205
3206         if (!dimmed && MODEST_IS_FOLDER_WINDOW (win)) {
3207                 ModestFolderView *folder_view;
3208                 folder_view = modest_folder_window_get_folder_view (MODEST_FOLDER_WINDOW (win));
3209                 dimmed = !modest_folder_view_any_folder_fulfils_rules (folder_view,
3210                                                                        MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE);
3211         }
3212
3213         if (!dimmed) {
3214                 dimmed = _transfer_mode_enabled (win);
3215                 if (dimmed)
3216                         modest_dimming_rule_set_notification (rule, "");
3217         }
3218
3219         return dimmed;
3220 }
3221
3222 gboolean
3223 modest_ui_dimming_rules_on_folder_window_delete (ModestWindow *win, gpointer user_data)
3224 {
3225         ModestDimmingRule *rule = NULL;
3226         gboolean dimmed = FALSE;
3227
3228         g_return_val_if_fail (MODEST_IS_FOLDER_WINDOW(win), FALSE);
3229         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3230         rule = MODEST_DIMMING_RULE (user_data);
3231
3232         /* Check dimmed rule */
3233         dimmed = _transfer_mode_enabled (win);
3234         if (dimmed)
3235                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
3236
3237         if (MODEST_IS_FOLDER_WINDOW (win)) {
3238                 ModestFolderView *folder_view;
3239                 folder_view = modest_folder_window_get_folder_view (MODEST_FOLDER_WINDOW (win));
3240                 dimmed = !modest_folder_view_any_folder_fulfils_rules (folder_view,
3241                                                                        MODEST_FOLDER_RULES_FOLDER_NON_DELETABLE);
3242         }
3243
3244         if (!dimmed) {
3245                 dimmed = _transfer_mode_enabled (win);
3246                 if (dimmed)
3247                         modest_dimming_rule_set_notification (rule, "");
3248         }
3249
3250         return dimmed;
3251 }
3252
3253 gboolean
3254 modest_ui_dimming_rules_on_edit_accounts (ModestWindow *win, gpointer user_data)
3255 {
3256         return !modest_account_mgr_has_accounts (modest_runtime_get_account_mgr (), TRUE);
3257 }
3258 #endif