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