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