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-mime-part.h"
  42 #include "modest-text-utils.h"
  43 #include <widgets/modest-attachments-view.h>
  44 #include <modest-runtime.h>
  45 #include <tny-simple-list.h>
  46 #include <widgets/modest-recpt-editor.h>
  47 #include <gtkhtml/gtkhtml.h>
  48
  49
  50 static gboolean _folder_is_any_of_type (TnyFolder *folder, TnyFolderType types[], guint ntypes);
  51 static gboolean _invalid_msg_selected (ModestMainWindow *win, gboolean unique, ModestDimmingRule *rule);
  52 static gboolean _invalid_attach_selected (ModestWindow *win,
  53                                           gboolean unique, gboolean for_view, gboolean for_remove,
  54                                           ModestDimmingRule *rule);
  55 static gboolean _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule);
  56 static gboolean _clipboard_is_empty (ModestWindow *win);
  57 static gboolean _invalid_clipboard_selected (ModestWindow *win, ModestDimmingRule *rule);
  58 static gboolean _selected_folder_not_writeable (ModestMainWindow *win, gboolean for_paste);
  59 static gboolean _selected_folder_not_moveable (ModestMainWindow *win);
  60 static gboolean _selected_folder_not_renameable (ModestMainWindow *win);
  61 static gboolean _selected_folder_not_deletable (ModestMainWindow *win);
  62 static gboolean _selected_folder_is_any_of_type (ModestWindow *win, TnyFolderType types[], guint ntypes);
  63 static gboolean _selected_folder_is_root_or_inbox (ModestMainWindow *win);
  64 static gboolean _selected_folder_is_root (ModestMainWindow *win);
  65 static gboolean _header_view_is_all_selected (ModestMainWindow *win);
  66 static gboolean _selected_folder_is_empty (ModestMainWindow *win);
  67 static gboolean _folder_view_has_focus (ModestWindow *win);
  68 static gboolean _selected_folder_is_same_as_source (ModestWindow *win);
  69 static gboolean _msg_download_in_progress (ModestWindow *win);
  70 static gboolean _msg_download_completed (ModestMainWindow *win);
  71 static gboolean _selected_msg_sent_in_progress (ModestWindow *win);
  72 static gboolean _invalid_folder_for_purge (ModestWindow *win, ModestDimmingRule *rule);
  73 static gboolean _transfer_mode_enabled (ModestWindow *win);
  74 static gboolean _selected_folder_has_subfolder_with_same_name (ModestWindow *win);
  75 static void fill_list_of_caches (gpointer key, gpointer value, gpointer userdata);
  76
  77
  78 static DimmedState *
  79 _define_main_window_dimming_state (ModestMainWindow *window)
  80 {
  81         DimmedState *state = NULL;
  82         GtkWidget *focused_widget = NULL;
  83         GtkWidget *header_view = NULL;
  84         GtkTreeModel *model = NULL;
  85         TnyList *selected_headers = NULL;
  86         TnyIterator *iter = NULL;
  87         TnyHeader *header = NULL;
  88         ModestCacheMgr *cache_mgr = NULL;
  89         GHashTable *send_queue_cache = NULL;
  90         ModestTnySendQueue *send_queue = NULL;
  91         GSList *send_queues = NULL, *node = NULL;
  92         ModestWindowMgr *mgr = NULL;
  93         gboolean found = FALSE;
  94         gchar *msg_uid = NULL;
  95         TnyHeaderFlags flags;
  96         gboolean all_deleted = TRUE;
  97         gboolean all_seen = TRUE;
  98         gboolean all_cached = TRUE;
  99         gboolean all_has_attach = TRUE;
 100         TnyFolder *folder = NULL;
 101
 102         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(window), NULL);
 103
 104         /* Init state */
 105         state = g_slice_new0 (DimmedState);
 106         state->n_selected = 0;
 107         state->already_opened_msg = 0;
 108         state->any_marked_as_deleted = FALSE;
 109         state->all_marked_as_deleted = FALSE;
 110         state->any_marked_as_seen = FALSE;
 111         state->all_marked_as_seen = FALSE;
 112         state->any_marked_as_cached = FALSE;
 113         state->all_marked_as_cached = FALSE;
 114         state->any_has_attachments = FALSE;
 115         state->all_has_attachments = FALSE;
 116         state->sent_in_progress = FALSE;
 117         state->all_selected = FALSE;
 118
 119         /* Get focused widget */
 120         focused_widget = gtk_window_get_focus (GTK_WINDOW (window));
 121         if (MODEST_IS_FOLDER_VIEW (focused_widget)) {
 122                 state->n_selected++;
 123                 return state;
 124         } else if (MODEST_IS_HEADER_VIEW (focused_widget)) {
 125                 header_view = focused_widget;
 126         } else {
 127                 header_view = modest_main_window_get_child_widget (window, MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
 128         }
 129
 130         /* Get header view and selected headers */
 131         selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
 132         if (!selected_headers)
 133                 return state;
 134
 135         /* Examine selected headers */
 136         iter = tny_list_create_iterator (selected_headers);
 137         while (!tny_iterator_is_done (iter)) {
 138                 header = TNY_HEADER (tny_iterator_get_current (iter));
 139                 flags = tny_header_get_flags (header);
 140
 141                 /* No selected */
 142                 state->n_selected++;
 143
 144                 /* Already opened */
 145                 mgr = modest_runtime_get_window_mgr ();
 146                 if (modest_window_mgr_find_registered_header (mgr, header, NULL))
 147                         state->already_opened_msg++;
 148
 149
 150                 /* Mark as deleted */
 151                 all_deleted = all_deleted && (flags & TNY_HEADER_FLAG_DELETED);
 152                 state->all_marked_as_deleted = all_deleted;
 153                 if (!state->any_marked_as_deleted)
 154                         state->any_marked_as_deleted = flags & TNY_HEADER_FLAG_DELETED;
 155
 156                 /* Mark as seen */
 157                 all_seen = all_seen && (flags & TNY_HEADER_FLAG_SEEN);
 158                 state->all_marked_as_seen = all_seen;
 159                 if (!state->any_marked_as_seen)
 160                         state->any_marked_as_seen = flags & TNY_HEADER_FLAG_SEEN;
 161
 162                 /* Mark as cached */
 163                 all_cached = all_cached && (flags & TNY_HEADER_FLAG_CACHED);
 164                 state->all_marked_as_cached = all_cached;
 165                 if (!state->any_marked_as_cached)
 166                         state->any_marked_as_cached = flags & TNY_HEADER_FLAG_CACHED;
 167
 168                 /* Mark has_attachments */
 169                 all_has_attach = all_has_attach && (flags & TNY_HEADER_FLAG_ATTACHMENTS);
 170                 state->all_has_attachments = all_has_attach;
 171                 if (!state->any_has_attachments)
 172                         state->any_has_attachments = flags & TNY_HEADER_FLAG_ATTACHMENTS;
 173
 174                 /* sent in progress */
 175                 folder = tny_header_get_folder (header);
 176                 if (folder) {
 177                         if (modest_tny_folder_guess_folder_type (folder) == TNY_FOLDER_TYPE_OUTBOX) {
 178                                 msg_uid = modest_tny_send_queue_get_msg_id (header);
 179                                 if (!state->sent_in_progress) {
 180                                         cache_mgr = modest_runtime_get_cache_mgr ();
 181                                         send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
 182                                                                                        MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
 183
 184                                         g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
 185
 186                                         for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
 187                                                 send_queue = MODEST_TNY_SEND_QUEUE (node->data);
 188
 189                                                 /* Check if msg uid is being processed inside send queue */
 190                                                 found = modest_tny_send_queue_msg_is_being_sent (send_queue, msg_uid);
 191                                         }
 192                                         state->sent_in_progress = found;
 193                                 }
 194                         }
 195                         g_object_unref (folder);
 196                 }
 197                 tny_iterator_next (iter);
 198                 g_object_unref (header);
 199         }
 200
 201         /* check if all the headers are selected or not */
 202         model = gtk_tree_view_get_model(GTK_TREE_VIEW(header_view));
 203         if (model != NULL){
 204                 gint count;
 205                 count = gtk_tree_model_iter_n_children(model, NULL);
 206                 if(state->n_selected == count)
 207                         state->all_selected = TRUE;
 208         }
 209
 210         /* Free */
 211         g_free(msg_uid);
 212         g_object_unref(selected_headers);
 213         g_object_unref(iter);
 214         g_slist_free (send_queues);
 215
 216         return state;
 217 }
 218
 219 static DimmedState *
 220 _define_msg_view_window_dimming_state (ModestMsgViewWindow *window)
 221 {
 222         DimmedState *state = NULL;
 223         TnyHeader *header = NULL;
 224         ModestCacheMgr *cache_mgr = NULL;
 225         GHashTable *send_queue_cache = NULL;
 226         ModestTnySendQueue *send_queue = NULL;
 227         GSList *send_queues = NULL, *node = NULL;
 228         gboolean found = FALSE;
 229         gchar *msg_uid = NULL;
 230         TnyHeaderFlags flags;
 231         gboolean all_deleted = TRUE;
 232         gboolean all_seen = TRUE;
 233         gboolean all_cached = TRUE;
 234         gboolean all_has_attach = TRUE;
 235
 236         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(window), NULL);
 237
 238         /* Init state */
 239         state = g_slice_new0 (DimmedState);
 240         state->n_selected = 0;
 241         state->already_opened_msg = 0;
 242         state->any_marked_as_deleted = FALSE;
 243         state->all_marked_as_deleted = FALSE;
 244         state->any_marked_as_seen = FALSE;
 245         state->all_marked_as_seen = FALSE;
 246         state->any_marked_as_cached = FALSE;
 247         state->all_marked_as_cached = FALSE;
 248         state->any_has_attachments = FALSE;
 249         state->all_has_attachments = FALSE;
 250         state->sent_in_progress = FALSE;
 251
 252         header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW(window));
 253         if (header == NULL)
 254                 return state;
 255         g_return_val_if_fail (TNY_IS_HEADER(header), state);
 256         flags = tny_header_get_flags (header);
 257
 258         /* Selected */
 259         state->n_selected++;
 260
 261         /* Mark as deleted */
 262         all_deleted = all_deleted && (flags & TNY_HEADER_FLAG_DELETED);
 263         state->all_marked_as_deleted = all_deleted;
 264         if (!state->any_marked_as_deleted)
 265                 state->any_marked_as_deleted = flags & TNY_HEADER_FLAG_DELETED;
 266
 267         /* Mark as seen */
 268         all_seen = all_seen && (flags & TNY_HEADER_FLAG_SEEN);
 269         state->all_marked_as_seen = all_seen;
 270         if (!state->any_marked_as_seen)
 271                 state->any_marked_as_seen = flags & TNY_HEADER_FLAG_SEEN;
 272
 273         /* Mark as cached */
 274         all_cached = all_cached && (flags & TNY_HEADER_FLAG_CACHED);
 275         state->all_marked_as_cached = all_cached;
 276         if (!state->any_marked_as_cached)
 277                 state->any_marked_as_cached = flags & TNY_HEADER_FLAG_CACHED;
 278
 279         /* Mark has_attachments */
 280         all_has_attach = all_has_attach && (flags & TNY_HEADER_FLAG_ATTACHMENTS);
 281         state->all_has_attachments = all_has_attach;
 282         if (!state->any_has_attachments)
 283                 state->any_has_attachments = (flags & TNY_HEADER_FLAG_ATTACHMENTS)?1:0;
 284
 285         /* sent in progress */
 286         msg_uid = modest_tny_send_queue_get_msg_id (header);
 287         if (!state->sent_in_progress) {
 288                 cache_mgr = modest_runtime_get_cache_mgr ();
 289                 send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
 290                                                                MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
 291
 292                 g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
 293
 294                 for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
 295                         send_queue = MODEST_TNY_SEND_QUEUE (node->data);
 296
 297                         /* Check if msg uid is being processed inside send queue */
 298                         found = modest_tny_send_queue_msg_is_being_sent (send_queue, msg_uid);
 299                 }
 300                 state->sent_in_progress = found;
 301         }
 302
 303         /* Free */
 304         g_free(msg_uid);
 305         g_object_unref (header);
 306         g_slist_free (send_queues);
 307
 308         return state;
 309 }
 310
 311
 312 DimmedState *
 313 modest_ui_dimming_rules_define_dimming_state (ModestWindow *window)
 314 {
 315         DimmedState *state = NULL;
 316
 317         g_return_val_if_fail (MODEST_IS_WINDOW(window), NULL);
 318
 319         if (MODEST_IS_MAIN_WINDOW (window))
 320                 state = _define_main_window_dimming_state (MODEST_MAIN_WINDOW(window));
 321         else if (MODEST_IS_MSG_VIEW_WINDOW (window)) {
 322                 state = _define_msg_view_window_dimming_state (MODEST_MSG_VIEW_WINDOW(window));
 323         }
 324
 325         return state;
 326 }
 327
 328 gboolean
 329 modest_ui_dimming_rules_on_new_msg (ModestWindow *win, gpointer user_data)
 330 {
 331         ModestDimmingRule *rule = NULL;
 332         gboolean dimmed = FALSE;
 333
 334         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 335         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 336         rule = MODEST_DIMMING_RULE (user_data);
 337
 338         /* Check dimmed rule */
 339         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
 340                 dimmed = _msg_download_in_progress (win);
 341                 if (dimmed)
 342                         modest_dimming_rule_set_notification (rule, "");
 343         } else if (MODEST_IS_MAIN_WINDOW(win)) {
 344                 dimmed = !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
 345                                                           TRUE);
 346                 if (dimmed)
 347                         modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
 348         }
 349
 350         return dimmed;
 351 }
 352
 353 gboolean
 354 modest_ui_dimming_rules_on_new_folder (ModestWindow *win, gpointer user_data)
 355 {
 356         ModestDimmingRule *rule = NULL;
 357         GtkWidget *folder_view = NULL;
 358         TnyFolderStore *parent_folder = NULL;
 359         gboolean dimmed = FALSE;
 360
 361         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 362         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 363         rule = MODEST_DIMMING_RULE (user_data);
 364
 365         dimmed = _transfer_mode_enabled (win);
 366         if (dimmed) {
 367                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 368                 return dimmed;
 369         }
 370
 371         /* Get selected folder as parent of new folder to create */
 372         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 373                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 374         if (!folder_view) /* folder view may not have been created yet */
 375                 return TRUE;
 376
 377         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
 378         if (!parent_folder)
 379                 return TRUE;
 380
 381         if (TNY_IS_ACCOUNT (parent_folder)) {
 382                 /* If it's the local account then do not dim */
 383                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
 384                         dimmed = FALSE;
 385                 } else {
 386                         ModestProtocolType protocol_type = modest_tny_account_get_protocol_type (TNY_ACCOUNT (parent_folder));
 387                         if (protocol_type != MODEST_PROTOCOL_REGISTRY_TYPE_INVALID) {
 388                                 ModestProtocolRegistry *protocol_registry;
 389
 390                                 protocol_registry = modest_runtime_get_protocol_registry ();
 391                                 /* If account does not support folders (pop) then dim */
 392                                 dimmed = (!modest_protocol_registry_protocol_type_has_tag (protocol_registry, protocol_type,
 393                                                                                            MODEST_PROTOCOL_REGISTRY_STORE_HAS_FOLDERS));
 394                                 if (dimmed)
 395                                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 396                         }
 397                 }
 398         } else {
 399                 TnyFolderType types[3];
 400
 401                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 402                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 403                 types[2] = TNY_FOLDER_TYPE_SENT;
 404
 405                 /* Apply folder rules */
 406                 if (!dimmed) {
 407                         dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win), FALSE);
 408                         if (dimmed)
 409                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 410                 }
 411                 if (!dimmed) {
 412                         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 413                         if (dimmed)
 414                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 415                 }
 416         }
 417
 418         /* if not the folder is selected then dim */
 419         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 420                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 421         if (folder_view && !gtk_widget_is_focus (folder_view))
 422                 dimmed = TRUE;
 423
 424         g_object_unref (parent_folder);
 425
 426         return dimmed;
 427 }
 428
 429 gboolean
 430 modest_ui_dimming_rules_on_delete (ModestWindow *win, gpointer user_data)
 431 {
 432         ModestDimmingRule *rule = NULL;
 433         GtkWidget *folder_view = NULL;
 434         GtkWidget *header_view = NULL;
 435         gboolean dimmed = FALSE;
 436
 437         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 438         rule = MODEST_DIMMING_RULE (user_data);
 439
 440         if (MODEST_IS_MAIN_WINDOW (win)) {
 441                 /* Get the folder view */
 442                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 443                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 444
 445                 /* Get header view */
 446                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 447                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
 448
 449                 if (header_view && gtk_widget_is_focus (header_view))
 450                         dimmed = modest_ui_dimming_rules_on_delete_msg (win, rule);
 451
 452                 if (folder_view && gtk_widget_is_focus (folder_view))
 453                         dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 454
 455                 if (header_view && folder_view &&
 456                     !gtk_widget_is_focus (header_view) &&
 457                     !gtk_widget_is_focus (folder_view)) {
 458                         dimmed = TRUE;
 459                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ckct_ib_nothing_to_delete"));
 460                 }
 461         } else {
 462                 dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 463         }
 464
 465         return dimmed;
 466 }
 467
 468
 469
 470 gboolean
 471 modest_ui_dimming_rules_on_delete_folder (ModestWindow *win, gpointer user_data)
 472 {
 473         ModestDimmingRule *rule = NULL;
 474         TnyFolderType types[6];
 475         gboolean dimmed = FALSE;
 476
 477         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 478         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 479         rule = MODEST_DIMMING_RULE (user_data);
 480
 481         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 482         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 483         types[2] = TNY_FOLDER_TYPE_SENT;
 484         types[3] = TNY_FOLDER_TYPE_INBOX;
 485         types[4] = TNY_FOLDER_TYPE_ROOT;
 486         types[5] = TNY_FOLDER_TYPE_ARCHIVE;
 487
 488
 489         /* Check dimmed rule */
 490         dimmed = _selected_folder_not_deletable (MODEST_MAIN_WINDOW(win));
 491         if (dimmed)
 492                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 493         if (!dimmed) {
 494                 dimmed = _selected_folder_is_any_of_type (win, types, 6);
 495                 if (dimmed)
 496                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 497         }
 498         if (!dimmed) {
 499                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 500                 if (dimmed)
 501                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 502         }
 503         if (!dimmed) {
 504                 dimmed = _transfer_mode_enabled (win);
 505                 if (dimmed)
 506                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 507         }
 508
 509         return dimmed;
 510 }
 511
 512 gboolean
 513 modest_ui_dimming_rules_on_sort (ModestWindow *win, gpointer user_data)
 514 {
 515         ModestDimmingRule *rule = NULL;
 516         gboolean dimmed = FALSE;
 517
 518         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 519         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 520         rule = MODEST_DIMMING_RULE (user_data);
 521
 522         /* Check dimmed rule */
 523         dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
 524
 525         if (!dimmed)
 526                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 527
 528         return dimmed;
 529
 530 }
 531
 532 gboolean
 533 modest_ui_dimming_rules_on_rename_folder (ModestWindow *win, gpointer user_data)
 534 {
 535         ModestDimmingRule *rule = NULL;
 536         TnyFolderType types[4];
 537         gboolean dimmed = FALSE;
 538
 539         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 540         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 541         rule = MODEST_DIMMING_RULE (user_data);
 542
 543         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 544         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 545         types[2] = TNY_FOLDER_TYPE_SENT;
 546         types[3] = TNY_FOLDER_TYPE_ARCHIVE;
 547
 548         /* Check dimmed rule */
 549         dimmed = _selected_folder_not_renameable (MODEST_MAIN_WINDOW(win));
 550         if (dimmed)
 551                 modest_dimming_rule_set_notification (rule, "");
 552         if (!dimmed) {
 553                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 554                 if (dimmed)
 555                         modest_dimming_rule_set_notification (rule, "");
 556         }
 557         if (!dimmed) {
 558                 dimmed = _selected_folder_is_any_of_type (win, types, 4);
 559                 if (dimmed)
 560                         modest_dimming_rule_set_notification (rule, "");
 561         }
 562         if (!dimmed) {
 563                 dimmed = _transfer_mode_enabled (win);
 564                 if (dimmed)
 565                         modest_dimming_rule_set_notification (rule, "");
 566         }
 567
 568         return dimmed;
 569 }
 570
 571 gboolean
 572 modest_ui_dimming_rules_on_open_msg (ModestWindow *win, gpointer user_data)
 573 {
 574         ModestDimmingRule *rule = NULL;
 575         gboolean dimmed = FALSE;
 576         const DimmedState *state = NULL;
 577
 578         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 579         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 580         rule = MODEST_DIMMING_RULE (user_data);
 581         state = modest_window_get_dimming_state (win);
 582
 583         /* Check dimmed rule */
 584         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 585         if (!dimmed) {
 586                 dimmed = state->any_marked_as_deleted;
 587                 if (dimmed) {
 588                         gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 589                         modest_dimming_rule_set_notification (rule, msg);
 590                         g_free (msg);
 591                 }
 592         }
 593         if (!dimmed) {
 594                 dimmed = _selected_msg_sent_in_progress (win);
 595                 if (dimmed)
 596                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_open_while_sent"));
 597         }
 598
 599         return dimmed;
 600 }
 601
 602 gboolean
 603 modest_ui_dimming_rules_on_reply_msg (ModestWindow *win, gpointer user_data)
 604 {
 605         ModestDimmingRule *rule = NULL;
 606         gboolean dimmed = FALSE;
 607         TnyFolderType types[3];
 608
 609         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 610         rule = MODEST_DIMMING_RULE (user_data);
 611
 612         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 613         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 614         types[2] = TNY_FOLDER_TYPE_ROOT;
 615
 616         /* Check dimmed rule */
 617         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 618         if (dimmed)
 619                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 620
 621         /* main window dimming rules */
 622         if (MODEST_IS_MAIN_WINDOW(win)) {
 623
 624                 if (!dimmed) {
 625                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 626                         if (dimmed)
 627                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_nothing_to_reply"));
 628                 }
 629                 if (!dimmed) {
 630                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, rule);
 631                 }
 632         /* msg view window dimming rules */
 633         } else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
 634
 635                 /* Check dimmed rule */
 636                 if (!dimmed) {
 637                         dimmed = _transfer_mode_enabled (win);
 638                         if (dimmed)
 639                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 640                 }
 641                 if (!dimmed) {
 642                         dimmed = _msg_download_in_progress (win);
 643                         if (dimmed)
 644                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 645                 }
 646         }
 647
 648         return dimmed;
 649 }
 650
 651
 652 gboolean
 653 modest_ui_dimming_rules_on_contents_msg (ModestWindow *win, gpointer user_data)
 654 {
 655         ModestDimmingRule *rule = NULL;
 656         gboolean dimmed = FALSE;
 657
 658         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 659         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 660         rule = MODEST_DIMMING_RULE (user_data);
 661
 662         /* Check dimmed rule */
 663         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 664         if (!dimmed) {
 665                 dimmed = _msg_download_completed (MODEST_MAIN_WINDOW(win));
 666                 if (dimmed)
 667                         modest_dimming_rule_set_notification (rule, "");
 668         }
 669
 670         return dimmed;
 671 }
 672
 673 gboolean
 674 modest_ui_dimming_rules_always_dimmed (ModestWindow *win, gpointer user_data)
 675 {
 676         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 677
 678         return TRUE;
 679 }
 680
 681 static gboolean
 682 _message_already_sent (ModestMsgViewWindow *view_window)
 683 {
 684         TnyHeader *header;
 685         TnyFolder *folder;
 686         gboolean already_sent = FALSE;
 687
 688         header = modest_msg_view_window_get_header (view_window);
 689         if (header) {
 690                 folder = tny_header_get_folder (header);
 691                 if (folder) {
 692                         if (modest_tny_folder_guess_folder_type (folder) ==
 693                             TNY_FOLDER_TYPE_OUTBOX) {
 694                                 ModestTnySendQueueStatus status =
 695                                         modest_tny_all_send_queues_get_msg_status (header);
 696                                 if (status == MODEST_TNY_SEND_QUEUE_UNKNOWN ||
 697                                     status == MODEST_TNY_SEND_QUEUE_SENDING)
 698                                         already_sent = TRUE;
 699                         }
 700                         g_object_unref (folder);
 701                 }
 702                 g_object_unref (header);
 703         }
 704         return already_sent;
 705 }
 706
 707
 708 gboolean
 709 modest_ui_dimming_rules_on_delete_msg (ModestWindow *win, gpointer user_data)
 710 {
 711         ModestDimmingRule *rule = NULL;
 712         const DimmedState *state = NULL;
 713         gboolean dimmed = FALSE;
 714
 715         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 716         rule = MODEST_DIMMING_RULE (user_data);
 717         state = modest_window_get_dimming_state (win);
 718
 719         /* Check dimmed rule */
 720         if (MODEST_IS_MAIN_WINDOW (win)) {
 721                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 722                 if (dimmed)
 723                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_nothing_to_delete"));
 724                 if (!dimmed) {
 725                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 726                 }
 727                 if (!dimmed) {
 728                         dimmed = state->sent_in_progress;
 729                         if (dimmed)
 730                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 731                 }
 732                 if (!dimmed) {
 733                         dimmed = state->any_marked_as_deleted;
 734                         if (dimmed) {
 735                                 gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 736                                 modest_dimming_rule_set_notification (rule, msg);
 737                                 g_free (msg);
 738                         }
 739                 }
 740                 if (!dimmed) {
 741                         dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
 742                         if (dimmed) {
 743                                 gchar *message = NULL;
 744
 745                                 message = g_strdup_printf(_("mcen_nc_unable_to_delete_n_messages"),
 746                                                           state->already_opened_msg);
 747                                 modest_dimming_rule_set_notification (rule, message);
 748                                 g_free(message);
 749                         }
 750
 751                 }
 752         }
 753         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
 754                 dimmed = _transfer_mode_enabled (win);
 755                 if (dimmed)
 756                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 757                 if (!dimmed) {
 758                         dimmed = state->any_marked_as_deleted;
 759                         if (dimmed) {
 760                                 gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 761                                 modest_dimming_rule_set_notification (rule, msg);
 762                                 g_free (msg);
 763                         }
 764                 }
 765                 if (!dimmed) {
 766                         dimmed = state->sent_in_progress;
 767                         if (dimmed)
 768                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 769                 }
 770
 771                 /* This could happen if we're viewing a message of the
 772                    outbox that has been already sent */
 773                 if (!dimmed)
 774                         dimmed = _message_already_sent (MODEST_MSG_VIEW_WINDOW(win));
 775
 776                 /* The delete button should be dimmed when viewing an attachment,
 777                  * but should be enabled when viewing a message from the list,
 778                  * or when viewing a search result.
 779                  */
 780                 if (!dimmed) {
 781                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
 782                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW(win));
 783                                 if (dimmed) {
 784                                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 785                                 }
 786                         }
 787                 }
 788         }
 789
 790         return dimmed;
 791 }
 792
 793 gboolean
 794 modest_ui_dimming_rules_on_details (ModestWindow *win, gpointer user_data)
 795 {
 796         ModestDimmingRule *rule = NULL;
 797         GtkWidget *header_view = NULL;
 798         gboolean dimmed = FALSE;
 799
 800         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 801         rule = MODEST_DIMMING_RULE (user_data);
 802
 803         /* main window dimming rules */
 804         if (MODEST_IS_MAIN_WINDOW(win)) {
 805
 806                 /* Check dimmed rule */
 807                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 808                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
 809
 810                 /* If the header view has the focus: */
 811                 if (header_view && gtk_widget_is_focus (header_view)) {
 812                         /* Check dimmed rule */
 813                         if (!dimmed)
 814                                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 815                 }
 816                 else {
 817                         /* If the folder view has the focus: */
 818                         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 819                                 MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 820                         if (folder_view && gtk_widget_is_focus (folder_view)) {
 821                                 TnyFolderStore *folder_store
 822                                         = modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
 823                                 if (folder_store) {
 824                                         /* Only enable for folders, not accounts,
 825                                          * though the UI spec is not clear about that.
 826                                          * If we enable this for accounts then we must
 827                                          * add code to handle them in modest_ui_actions_on_details(). */
 828                                         if (!TNY_IS_FOLDER(folder_store)) {
 829                                                 dimmed = TRUE;
 830                                                 modest_dimming_rule_set_notification (rule, "");
 831                                         }
 832
 833                                         g_object_unref (folder_store);
 834                                 } else {
 835                                         dimmed = TRUE;
 836                                         modest_dimming_rule_set_notification (rule, "");
 837                                 }
 838                                 if (!dimmed) {
 839                                         dimmed = _msg_download_in_progress (win);
 840                                         if (dimmed)
 841                                                 modest_dimming_rule_set_notification (rule, "");
 842                                 }
 843
 844                         } else {
 845                                 return TRUE;
 846                         }
 847                 }
 848
 849         /* msg view window dimming rules */
 850         } else {
 851                 /* Check dimmed rule */
 852                 if (MODEST_IS_MSG_VIEW_WINDOW (win))
 853                         dimmed = _msg_download_in_progress (win);
 854                 if (dimmed)
 855                         modest_dimming_rule_set_notification (rule, "");
 856                 if (!dimmed) {
 857                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
 858                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
 859                         }
 860                         if (dimmed)
 861                                 modest_dimming_rule_set_notification (rule, "");
 862                 }
 863         }
 864
 865         return dimmed;
 866 }
 867
 868
 869 gboolean
 870 modest_ui_dimming_rules_on_mark_as_read_msg (ModestWindow *win, gpointer user_data)
 871 {
 872         ModestDimmingRule *rule = NULL;
 873         TnyHeaderFlags flags;
 874         const DimmedState *state = NULL;
 875         gboolean dimmed = FALSE;
 876
 877         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 878         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 879         rule = MODEST_DIMMING_RULE (user_data);
 880         state = modest_window_get_dimming_state (win);
 881
 882         flags = TNY_HEADER_FLAG_SEEN;
 883
 884         /* Check dimmed rule */
 885         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 886         if (!dimmed) {
 887                 dimmed = state->all_marked_as_seen;
 888                 if (dimmed)
 889                         modest_dimming_rule_set_notification (rule, "");
 890         }
 891
 892         return dimmed;
 893 }
 894
 895 gboolean
 896 modest_ui_dimming_rules_on_mark_as_unread_msg (ModestWindow *win, gpointer user_data)
 897 {
 898         ModestDimmingRule *rule = NULL;
 899         TnyHeaderFlags flags;
 900         const DimmedState *state = NULL;
 901         gboolean dimmed = FALSE;
 902
 903         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 904         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 905         rule = MODEST_DIMMING_RULE (user_data);
 906         state = modest_window_get_dimming_state (win);
 907
 908         flags = TNY_HEADER_FLAG_SEEN;
 909
 910         /* Check dimmed rule */
 911         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 912         if (!dimmed) {
 913                 dimmed = !state->any_marked_as_seen;
 914                 if (dimmed)
 915                         modest_dimming_rule_set_notification (rule, "");
 916         }
 917
 918         return dimmed;
 919 }
 920
 921 gboolean
 922 modest_ui_dimming_rules_on_move_to (ModestWindow *win, gpointer user_data)
 923 {
 924         ModestDimmingRule *rule = NULL;
 925         gboolean dimmed = FALSE;
 926
 927         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 928         rule = MODEST_DIMMING_RULE (user_data);
 929
 930         if (MODEST_IS_MAIN_WINDOW (win))
 931                 dimmed = modest_ui_dimming_rules_on_main_window_move_to (win, user_data);
 932         else if (MODEST_IS_MSG_VIEW_WINDOW (win))
 933                  dimmed = modest_ui_dimming_rules_on_view_window_move_to (win, user_data);
 934
 935         return dimmed;
 936 }
 937
 938
 939 gboolean
 940 modest_ui_dimming_rules_on_main_window_move_to (ModestWindow *win, gpointer user_data)
 941 {
 942         GtkWidget *folder_view = NULL;
 943         ModestDimmingRule *rule = NULL;
 944         const DimmedState *state = NULL;
 945         gboolean dimmed = FALSE;
 946
 947         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
 948         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 949         rule = MODEST_DIMMING_RULE (user_data);
 950         state = modest_window_get_dimming_state (win);
 951
 952         /* Get the folder view */
 953         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 954                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 955
 956
 957         /* Check diming rules for folders transfer  */
 958         if (folder_view && gtk_widget_is_focus (folder_view)) {
 959                 TnyFolderType types[5];
 960
 961                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 962                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 963                 types[2] = TNY_FOLDER_TYPE_SENT;
 964                 types[3] = TNY_FOLDER_TYPE_ROOT;
 965                 types[4] = TNY_FOLDER_TYPE_INBOX;
 966
 967                 /* Apply folder rules */
 968                 dimmed = _selected_folder_not_moveable (MODEST_MAIN_WINDOW(win));
 969                 if (dimmed)
 970                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
 971                 if (!dimmed) {
 972                         dimmed = _selected_folder_is_any_of_type (win, types, 5);
 973                         if (dimmed)
 974                                 modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
 975                 }
 976         }
 977
 978         /* Check diming rules for messages transfer  */
 979         if (!dimmed) {
 980                 dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
 981                 if (dimmed) {
 982                         gchar *message = g_strdup_printf(_("emev_nc_unabletomove_items"),
 983                                                          state->already_opened_msg);
 984                         modest_dimming_rule_set_notification (rule, message);
 985                         g_free(message);
 986                 }
 987         }
 988         if (!dimmed) {
 989                 if (!(folder_view && gtk_widget_is_focus (folder_view)))
 990                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 991
 992         }
 993         if (!dimmed) {
 994                 dimmed = _selected_msg_sent_in_progress (win);
 995                 if (dimmed)
 996                         modest_dimming_rule_set_notification (rule, _("sfil_ib_unable_to_move_selected_items"));
 997         }
 998
 999         return dimmed;
1000 }
1001
1002 gboolean
1003 modest_ui_dimming_rules_on_view_window_move_to (ModestWindow *win, gpointer user_data)
1004 {
1005         ModestDimmingRule *rule = NULL;
1006         gboolean dimmed = FALSE;
1007
1008         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1009         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1010         rule = MODEST_DIMMING_RULE (user_data);
1011
1012         /* Check dimmed rule */
1013         dimmed = _transfer_mode_enabled (win);
1014         if (dimmed)
1015                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1016         if (!dimmed) {
1017                 dimmed = modest_window_get_dimming_state (win)->any_marked_as_deleted;
1018                 if (dimmed) {
1019                         gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
1020                         modest_dimming_rule_set_notification (rule, msg);
1021                         g_free (msg);
1022                 }
1023         }
1024
1025         if (!dimmed) {
1026                 dimmed = _selected_msg_sent_in_progress (win);
1027                 if (dimmed)
1028                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_item"));
1029         }
1030
1031         /* This could happen if we're viewing a message of the outbox
1032            that has been already sent */
1033         if (!dimmed)
1034                 dimmed = _message_already_sent (MODEST_MSG_VIEW_WINDOW(win));
1035
1036         if (!dimmed) {
1037                 if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1038                         /* The move_to button should be dimmed when viewing an attachment,
1039                          * but should be enabled when viewing a message from the list,
1040                          * or when viewing a search result.
1041                          */
1042                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
1043                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
1044                         }
1045                 }
1046
1047                 if (dimmed)
1048                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_item"));
1049         }
1050
1051         return dimmed;
1052 }
1053
1054 gboolean
1055 modest_ui_dimming_rules_on_find_msg (ModestWindow *win, gpointer user_data)
1056 {
1057         ModestDimmingRule *rule = NULL;
1058         gboolean dimmed = FALSE;
1059
1060         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1061         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1062         rule = MODEST_DIMMING_RULE (user_data);
1063
1064         /* Check dimmed rule */
1065         dimmed = _transfer_mode_enabled (win);
1066         if (dimmed)
1067                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1068
1069         return dimmed;
1070 }
1071
1072 gboolean
1073 modest_ui_dimming_rules_on_paste (ModestWindow *win, gpointer user_data)
1074 {
1075         ModestDimmingRule *rule = NULL;
1076         TnyFolderType types[3];
1077         gboolean dimmed = FALSE;
1078
1079         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1080         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1081         rule = MODEST_DIMMING_RULE (user_data);
1082
1083         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1084         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1085         types[2] = TNY_FOLDER_TYPE_SENT;
1086
1087         /* Check dimmed rule */
1088         dimmed = _clipboard_is_empty (win);
1089         if (dimmed)
1090                 modest_dimming_rule_set_notification (rule,
1091                                                       dgettext("hildon-common-strings",
1092                                                                "ecoc_ib_edwin_nothing_to_paste"));
1093         if (!dimmed) {
1094                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1095                 if (dimmed)
1096                         modest_dimming_rule_set_notification (rule,
1097                                                               dgettext("hildon-common-strings",
1098                                                                        "ckct_ib_unable_to_paste_here"));
1099         }
1100         if (!dimmed) {
1101                 dimmed = !_folder_view_has_focus (win);
1102                 if (dimmed)
1103                         modest_dimming_rule_set_notification (rule,
1104                                         dgettext("hildon-common-strings",
1105                                         "ckct_ib_unable_to_paste_here"));
1106         }
1107         if (!dimmed) {
1108                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win), TRUE);
1109                 if (dimmed)
1110                         modest_dimming_rule_set_notification (rule,
1111                                                               dgettext("hildon-common-strings",
1112                                                                        "ckct_ib_unable_to_paste_here"));
1113         }
1114         if (!dimmed) {
1115                 dimmed = _selected_folder_is_same_as_source (win);
1116                 if (dimmed)
1117                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_copy_target_error"));
1118         }
1119         if (!dimmed) {
1120                 dimmed = _selected_folder_has_subfolder_with_same_name (win);
1121                 if (dimmed)
1122                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_copy_target_error"));
1123         }
1124
1125         return dimmed;
1126 }
1127
1128
1129 gboolean
1130 modest_ui_dimming_rules_on_select_all (ModestWindow *win, gpointer user_data)
1131 {
1132         ModestDimmingRule *rule = NULL;
1133         gboolean dimmed = FALSE;
1134         GtkWidget *focused = NULL;
1135
1136         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1137         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1138         rule = MODEST_DIMMING_RULE (user_data);
1139
1140         focused = gtk_window_get_focus (GTK_WINDOW (win));
1141
1142         /* Main window dimming rules */
1143         if (MODEST_IS_MAIN_WINDOW (win))
1144                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1145
1146         if (!dimmed && MODEST_IS_MAIN_WINDOW (win))
1147                 dimmed = _header_view_is_all_selected (MODEST_MAIN_WINDOW(win));
1148
1149         if (!dimmed && GTK_IS_ENTRY (focused)) {
1150                 const gchar *current_text;
1151                 current_text = gtk_entry_get_text (GTK_ENTRY (focused));
1152                 dimmed = ((current_text == NULL) || (current_text[0] == '\0'));
1153         }
1154
1155         if (!dimmed && GTK_IS_TEXT_VIEW (focused)) {
1156                 GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
1157                 dimmed = (gtk_text_buffer_get_char_count (buffer) < 1);
1158         }
1159
1160         if (dimmed && MODEST_IS_ATTACHMENTS_VIEW (focused))
1161                 dimmed = FALSE;
1162         return dimmed;
1163 }
1164
1165 gboolean
1166 modest_ui_dimming_rules_on_view_attachments (ModestWindow *win, gpointer user_data)
1167 {
1168         ModestDimmingRule *rule = NULL;
1169         gboolean dimmed = FALSE;
1170
1171         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1172         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1173         rule = MODEST_DIMMING_RULE (user_data);
1174
1175         /* Check dimmed rule */
1176         dimmed = _invalid_attach_selected (win, TRUE, TRUE, FALSE, rule);
1177
1178         if (!dimmed) {
1179                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1180                 if (dimmed) {
1181                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1182                 }
1183         }
1184
1185         return dimmed;
1186 }
1187
1188 gboolean
1189 modest_ui_dimming_rules_on_save_attachments (ModestWindow *win, gpointer user_data)
1190 {
1191         ModestDimmingRule *rule = NULL;
1192         gboolean dimmed = FALSE;
1193
1194         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1195         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1196         rule = MODEST_DIMMING_RULE (user_data);
1197
1198         /* Check dimmed rule */
1199         dimmed = _invalid_attach_selected (win, FALSE, FALSE, FALSE, rule);
1200
1201         if (!dimmed) {
1202                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1203                 if (dimmed) {
1204                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1205                 }
1206         }
1207
1208         return dimmed;
1209 }
1210
1211 gboolean
1212 modest_ui_dimming_rules_on_remove_attachments (ModestWindow *win, gpointer user_data)
1213 {
1214         ModestDimmingRule *rule = NULL;
1215         const DimmedState *state = NULL;
1216         gboolean dimmed = FALSE;
1217
1218         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1219         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1220         rule = MODEST_DIMMING_RULE (user_data);
1221         state = modest_window_get_dimming_state (win);
1222
1223         /* Check in main window if there's only one message selected */
1224         if (MODEST_IS_MAIN_WINDOW (win)) {
1225                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW (win), TRUE, rule);
1226         }
1227
1228         /* Check in view window if there's any attachment selected */
1229         if (!dimmed && MODEST_IS_MSG_VIEW_WINDOW (win)) {
1230                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, TRUE, NULL);
1231                 if (dimmed)
1232                         modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1233         }
1234
1235         /* Messages as attachments could not be removed */
1236         if (!dimmed && MODEST_IS_MSG_VIEW_WINDOW (win)) {
1237                 TnyList *attachments;
1238                 TnyIterator *iter;
1239                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW (win));
1240                 if (attachments) {
1241                         iter = tny_list_create_iterator (attachments);
1242                         while (!tny_iterator_is_done (iter) && !dimmed) {
1243                                 TnyMimePart *mime_part = (TnyMimePart *)
1244                                         tny_iterator_get_current (iter);
1245                                 if (modest_tny_mime_part_is_msg (mime_part))
1246                                         dimmed = TRUE;
1247                                 g_object_unref (mime_part);
1248                                 tny_iterator_next (iter);
1249                         }
1250                         g_object_unref (iter);
1251                         g_object_unref (attachments);
1252                 }
1253         }
1254
1255         if (!dimmed) {
1256
1257                 dimmed = _selected_msg_sent_in_progress (win);
1258                 if (dimmed) {
1259                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1260                 }
1261         }
1262
1263         /* cannot purge in editable drafts nor pop folders */
1264         if (!dimmed) {
1265                 dimmed = _invalid_folder_for_purge (win, rule);
1266                 if (dimmed)
1267                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1268         }
1269
1270         /* Check if the selected message in main window has attachments */
1271         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1272                 dimmed = !(state->any_has_attachments);
1273                 if (dimmed)
1274                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1275         }
1276
1277         /* Check if all attachments are already purged */
1278         if (!dimmed) {
1279                 dimmed = _purged_attach_selected (win, TRUE, rule);
1280         }
1281
1282         /* Check if the message is already downloaded */
1283         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1284                 dimmed = !_msg_download_completed (MODEST_MAIN_WINDOW (win));
1285                 if (dimmed)
1286                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1287         }
1288
1289         return dimmed;
1290 }
1291
1292 gboolean
1293 modest_ui_dimming_rules_on_undo (ModestWindow *win, gpointer user_data)
1294 {
1295         ModestDimmingRule *rule = NULL;
1296         gboolean dimmed = FALSE;
1297
1298         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1299         rule = MODEST_DIMMING_RULE (user_data);
1300
1301         /* Check dimmed rule */
1302         if (MODEST_IS_MAIN_WINDOW (win)) {
1303                 dimmed = _clipboard_is_empty (win);
1304                 if (dimmed)
1305                         modest_dimming_rule_set_notification (rule, "");
1306         }
1307
1308         if (!dimmed && MODEST_IS_MSG_EDIT_WINDOW (win)) {
1309                 dimmed = !modest_msg_edit_window_can_undo (MODEST_MSG_EDIT_WINDOW (win));
1310         }
1311
1312         return dimmed;
1313 }
1314
1315 gboolean
1316 modest_ui_dimming_rules_on_redo (ModestWindow *win, gpointer user_data)
1317 {
1318         ModestDimmingRule *rule = NULL;
1319         gboolean dimmed = FALSE;
1320
1321         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1322         rule = MODEST_DIMMING_RULE (user_data);
1323
1324         /* Check dimmed rule */
1325         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
1326                 dimmed = !modest_msg_edit_window_can_redo (MODEST_MSG_EDIT_WINDOW (win));
1327         }
1328
1329         return dimmed;
1330 }
1331
1332 gboolean
1333 modest_ui_dimming_rules_on_cut (ModestWindow *win, gpointer user_data)
1334 {
1335         ModestDimmingRule *rule = NULL;
1336         const DimmedState *state = NULL;
1337         gboolean dimmed = FALSE;
1338
1339         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1340         rule = MODEST_DIMMING_RULE (user_data);
1341         state = modest_window_get_dimming_state (win);
1342
1343         /* Check common dimming rules */
1344         dimmed = _invalid_clipboard_selected (win, rule);
1345
1346         /* Check window specific dimming rules */
1347         if (MODEST_IS_MAIN_WINDOW (win)) {
1348                 /* Get focused widget */
1349                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1350
1351                 if (MODEST_IS_HEADER_VIEW (focused)) {
1352                         if (!dimmed) {
1353                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1354                                 if (dimmed)
1355                                         modest_dimming_rule_set_notification (rule, "");
1356                         }
1357                         if (!dimmed) {
1358                                 dimmed = _selected_msg_sent_in_progress (win);
1359                                 if (dimmed)
1360                                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1361                         }
1362                         if (!dimmed) {
1363                                 dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
1364                                 if(dimmed)
1365                                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1366                         }
1367                 }
1368                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1369                         TnyFolderType types[3];
1370
1371                         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1372                         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1373                         types[2] = TNY_FOLDER_TYPE_SENT;
1374
1375                         /* Apply folder rules */
1376                         if (!dimmed) {
1377                                 dimmed = _selected_folder_not_deletable (MODEST_MAIN_WINDOW(win));
1378                                 if (dimmed)
1379                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1380                         }
1381                         if (!dimmed) {
1382                                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
1383                                 if (dimmed)
1384                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1385                         }
1386                         if (!dimmed) {
1387                                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1388                                 if (dimmed)
1389                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1390                         }
1391                 }
1392         }
1393
1394         return dimmed;
1395 }
1396
1397 gboolean
1398 modest_ui_dimming_rules_on_copy (ModestWindow *win, gpointer user_data)
1399 {
1400         ModestDimmingRule *rule = NULL;
1401         const DimmedState *state = NULL;
1402         gboolean dimmed = FALSE;
1403
1404         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1405         rule = MODEST_DIMMING_RULE (user_data);
1406         state = modest_window_get_dimming_state (win);
1407
1408         /* Check common dimming rules */
1409         dimmed = _invalid_clipboard_selected (win, rule);
1410
1411         /* Check window specific dimming rules */
1412         if (MODEST_IS_MAIN_WINDOW (win)) {
1413                 /* Get focused widget */
1414                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1415
1416                 if (MODEST_IS_HEADER_VIEW (focused)) {
1417                         if (!dimmed) {
1418                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1419                                 if (dimmed)
1420                                         modest_dimming_rule_set_notification (rule, "");
1421                         }
1422                         if (!dimmed) {
1423                                 dimmed = _selected_msg_sent_in_progress (win);
1424                                 if (dimmed)
1425                                         modest_dimming_rule_set_notification (rule, _(""));
1426                         }
1427                         if (!dimmed) {
1428                                 dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
1429                                 if(dimmed)
1430                                         modest_dimming_rule_set_notification (rule, _(""));
1431                         }
1432                 }
1433                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1434                         TnyFolderType types[3];
1435
1436                         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1437                         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1438                         types[2] = TNY_FOLDER_TYPE_SENT;
1439
1440                         if (!dimmed) {
1441                                 dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
1442                                 if (dimmed)
1443                                         modest_dimming_rule_set_notification (rule, _(""));
1444                         }
1445                         if (!dimmed) {
1446                                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1447                                 if (dimmed)
1448                                         modest_dimming_rule_set_notification (rule, _(""));
1449                         }
1450                 }
1451         }
1452
1453         return dimmed;
1454 }
1455
1456 gboolean
1457 modest_ui_dimming_rules_on_set_style (ModestWindow *win, gpointer user_data)
1458 {
1459         ModestDimmingRule *rule = NULL;
1460         const DimmedState *state = NULL;
1461         gboolean dimmed = FALSE;
1462
1463         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1464         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1465         rule = MODEST_DIMMING_RULE (user_data);
1466         state = modest_window_get_dimming_state (win);
1467
1468
1469         /* Check common dimming rules */
1470         ModestMsgEditFormat format;
1471         format = modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
1472
1473         dimmed = (format != MODEST_MSG_EDIT_FORMAT_HTML);
1474         if (dimmed)
1475                 modest_dimming_rule_set_notification (rule, _("mcen_ib_item_unavailable_plaintext"));
1476
1477         if (!dimmed) {
1478                 GtkWidget *body;
1479                 body = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1480                                                                 MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1481
1482                 dimmed = ((body == NULL)||(!gtk_widget_is_focus (body)));
1483                 if (dimmed)
1484                         modest_dimming_rule_set_notification (rule, _("mcen_ib_move_cursor_to_message"));
1485         }
1486
1487
1488         return dimmed;
1489 }
1490
1491 gboolean
1492 modest_ui_dimming_rules_on_zoom (ModestWindow *win, gpointer user_data)
1493 {
1494         ModestDimmingRule *rule = NULL;
1495         const DimmedState *state = NULL;
1496         gboolean dimmed = FALSE;
1497
1498         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1499         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1500         rule = MODEST_DIMMING_RULE (user_data);
1501         state = modest_window_get_dimming_state (win);
1502
1503         GtkWidget *body;
1504         body = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1505                                                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1506
1507         dimmed = ((body == NULL)||(!gtk_widget_is_focus (body)));
1508         if (dimmed)
1509                 modest_dimming_rule_set_notification (rule, _("mcen_ib_move_cursor_to_message"));
1510
1511         return dimmed;
1512 }
1513
1514 gboolean
1515 modest_ui_dimming_rules_on_editor_paste (ModestWindow *win, gpointer user_data)
1516 {
1517         ModestDimmingRule *rule = NULL;
1518         const DimmedState *state = NULL;
1519         gboolean dimmed = FALSE;
1520         GtkWidget *focused = NULL;
1521
1522         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1523         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1524         rule = MODEST_DIMMING_RULE (user_data);
1525         state = modest_window_get_dimming_state (win);
1526
1527         focused = gtk_window_get_focus (GTK_WINDOW (win));
1528
1529         dimmed = MODEST_IS_ATTACHMENTS_VIEW (focused);
1530
1531         if (!dimmed) {
1532                 dimmed = GTK_IS_TOGGLE_BUTTON (focused);
1533         }
1534
1535         if (!dimmed) {
1536                 ModestEmailClipboard *e_clipboard = modest_runtime_get_email_clipboard ();
1537                 const gchar *clipboard_text = modest_msg_edit_window_get_clipboard_text (MODEST_MSG_EDIT_WINDOW (win));
1538
1539                 dimmed = modest_email_clipboard_cleared (e_clipboard) &&
1540                   ((clipboard_text == NULL) || (clipboard_text[0] == '\0'));
1541         }
1542
1543         return dimmed;
1544 }
1545
1546 gboolean
1547 modest_ui_dimming_rules_on_editor_remove_attachment (ModestWindow *win, gpointer user_data)
1548 {
1549         ModestDimmingRule *rule = NULL;
1550         const DimmedState *state = NULL;
1551         gboolean dimmed = FALSE;
1552         TnyList *selected_attachments = NULL;
1553         gint n_att_selected = 0;
1554         GtkWidget *attachments_view;
1555
1556         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1557         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1558         rule = MODEST_DIMMING_RULE (user_data);
1559         state = modest_window_get_dimming_state (win);
1560
1561         attachments_view = modest_msg_edit_window_get_child_widget (
1562                                                                     MODEST_MSG_EDIT_WINDOW (win),
1563                                                                     MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_ATTACHMENTS);
1564
1565         selected_attachments = modest_attachments_view_get_selection (
1566                                                                       MODEST_ATTACHMENTS_VIEW (attachments_view));
1567         n_att_selected = tny_list_get_length (selected_attachments);
1568         g_object_unref (selected_attachments);
1569
1570         dimmed = (n_att_selected < 1);
1571
1572         return dimmed;
1573 }
1574
1575 gboolean
1576 modest_ui_dimming_rules_on_send (ModestWindow *win, gpointer user_data)
1577 {
1578         ModestDimmingRule *rule = NULL;
1579         const DimmedState *state = NULL;
1580         gboolean dimmed = FALSE;
1581         GtkWidget *subject_field, *body_field;
1582         GtkTextBuffer *body_buffer;
1583         const gchar *subject = NULL;
1584
1585         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1586         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1587         rule = MODEST_DIMMING_RULE (user_data);
1588         state = modest_window_get_dimming_state (win);
1589
1590         body_field = modest_msg_edit_window_get_child_widget (
1591                                                               MODEST_MSG_EDIT_WINDOW (win),
1592                                                               MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1593         subject_field = modest_msg_edit_window_get_child_widget (
1594                                                                  MODEST_MSG_EDIT_WINDOW (win),
1595                                                                  MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_SUBJECT);
1596         body_buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (body_field));
1597         subject = gtk_entry_get_text (GTK_ENTRY (subject_field));
1598
1599         dimmed = (subject == NULL || subject[0] == '\0');
1600         if (dimmed)
1601                 modest_dimming_rule_set_notification (rule, _("mcen_ib_subject_not_modified"));
1602
1603         if (!dimmed) {
1604                 GtkWidget *to_field, *cc_field, *bcc_field;
1605                 GtkTextBuffer * to_buffer, *cc_buffer, *bcc_buffer;
1606                 cc_field = modest_msg_edit_window_get_child_widget (
1607                         MODEST_MSG_EDIT_WINDOW (win),
1608                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_CC);
1609                 to_field = modest_msg_edit_window_get_child_widget (
1610                         MODEST_MSG_EDIT_WINDOW (win),
1611                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_TO);
1612                 bcc_field = modest_msg_edit_window_get_child_widget (
1613                         MODEST_MSG_EDIT_WINDOW (win),
1614                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BCC);
1615                 to_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (to_field));
1616                 cc_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (cc_field));
1617                 bcc_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (bcc_field));
1618
1619                 dimmed = ((gtk_text_buffer_get_char_count (to_buffer) +
1620                            gtk_text_buffer_get_char_count (cc_buffer) +
1621                            gtk_text_buffer_get_char_count (bcc_buffer)) == 0);
1622                 if (dimmed)
1623                         modest_dimming_rule_set_notification (rule, _("mcen_ib_add_recipients_first"));
1624         }
1625
1626         return dimmed;
1627 }
1628
1629 gboolean
1630 modest_ui_dimming_rules_on_view_previous (ModestWindow *win, gpointer user_data)
1631 {
1632         ModestDimmingRule *rule = NULL;
1633         gboolean dimmed = FALSE;
1634
1635         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1636         rule = MODEST_DIMMING_RULE (user_data);
1637
1638         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1639
1640         /* Check dimmed rule */
1641         dimmed = _transfer_mode_enabled (win);
1642         if (dimmed)
1643                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1644
1645         if (!dimmed) {
1646                 dimmed = modest_msg_view_window_first_message_selected (
1647                                 MODEST_MSG_VIEW_WINDOW(win));
1648                 modest_dimming_rule_set_notification (rule, NULL);
1649         }
1650
1651         return dimmed;
1652 }
1653
1654 gboolean
1655 modest_ui_dimming_rules_on_view_next (ModestWindow *win, gpointer user_data)
1656 {
1657         ModestDimmingRule *rule = NULL;
1658         gboolean dimmed = FALSE;
1659
1660         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1661         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1662         rule = MODEST_DIMMING_RULE (user_data);
1663
1664         /* Check dimmed rule */
1665         dimmed = _transfer_mode_enabled (win);
1666         if (dimmed)
1667                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1668
1669         if (!dimmed) {
1670                 dimmed = modest_msg_view_window_last_message_selected (MODEST_MSG_VIEW_WINDOW (win));
1671                 modest_dimming_rule_set_notification (rule, NULL);
1672         }
1673
1674         return dimmed;
1675 }
1676
1677
1678 gboolean
1679 modest_ui_dimming_rules_on_tools_smtp_servers (ModestWindow *win, gpointer user_data)
1680 {
1681         return !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
1682                                                 TRUE);
1683 }
1684
1685 gboolean
1686 modest_ui_dimming_rules_on_cancel_sending (ModestWindow *win, gpointer user_data)
1687 {
1688         ModestDimmingRule *rule = NULL;
1689         TnyFolderType types[1];
1690         const DimmedState *state = NULL;
1691         gboolean dimmed = FALSE;
1692
1693         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1694         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1695         rule = MODEST_DIMMING_RULE (user_data);
1696         state = modest_window_get_dimming_state (win);
1697
1698         types[0] = TNY_FOLDER_TYPE_OUTBOX;
1699
1700         /* Check dimmed rules */
1701         dimmed = !_selected_folder_is_any_of_type (win, types, 1);
1702         if (dimmed)
1703                 modest_dimming_rule_set_notification (rule, "");
1704         if (!dimmed) {
1705                 dimmed = !state->sent_in_progress;
1706                 if (dimmed)
1707                         modest_dimming_rule_set_notification (rule, "");
1708         }
1709
1710         return dimmed;
1711 }
1712
1713 gboolean
1714 modest_ui_dimming_rules_on_send_receive (ModestWindow *win, gpointer user_data)
1715 {
1716         ModestDimmingRule *rule = NULL;
1717         gboolean dimmed = FALSE;
1718
1719         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1720         rule = MODEST_DIMMING_RULE (user_data);
1721
1722         /* Check dimmed rule */
1723         dimmed = !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
1724                                                   TRUE);
1725         if (dimmed)
1726                 modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
1727
1728         return dimmed;
1729 }
1730
1731 gboolean
1732 modest_ui_dimming_rules_on_send_receive_all (ModestWindow *win, gpointer user_data)
1733 {
1734         ModestDimmingRule *rule = NULL;
1735         gboolean dimmed = FALSE;
1736
1737         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1738         rule = MODEST_DIMMING_RULE (user_data);
1739
1740         /* Check dimmed rule */
1741         GSList *account_names = modest_account_mgr_account_names (modest_runtime_get_account_mgr (), TRUE);
1742         if (g_slist_length (account_names) <= 1)
1743                 dimmed = TRUE;
1744         if (dimmed)
1745                 modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
1746
1747         modest_account_mgr_free_account_names (account_names);
1748
1749         return dimmed;
1750 }
1751
1752 gboolean
1753 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
1754 {
1755         ModestDimmingRule *rule = NULL;
1756         gboolean dimmed = FALSE;
1757         GtkWidget *focused = NULL;
1758
1759         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1760         rule = MODEST_DIMMING_RULE (user_data);
1761         focused = gtk_window_get_focus (GTK_WINDOW (win));
1762
1763         dimmed = !focused;
1764
1765         if (!dimmed) {
1766                 gchar *selection = NULL;
1767                 if (GTK_IS_TEXT_VIEW (focused)) {
1768                         GtkTextIter start, end;
1769                         GtkTextBuffer *buffer = NULL;
1770                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
1771                         if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end)) {
1772                                 selection = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
1773                         }
1774                 } else if (GTK_IS_LABEL (focused)) {
1775                         selection = modest_text_utils_label_get_selection (GTK_LABEL (focused));
1776                 } else {
1777                         gboolean do_check = TRUE;
1778                         GtkClipboard *clipboard;
1779                         if (GTK_IS_HTML (focused)) {
1780                                 const gchar *sel;
1781                                 int len = -1;
1782                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
1783                                 do_check = !((sel == NULL) || (sel[0] == '\0'));
1784                         } else if (MODEST_IS_ATTACHMENTS_VIEW (focused)) {
1785                                 do_check = FALSE;
1786                         }
1787                         if (do_check) {
1788                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
1789                                 selection = gtk_clipboard_wait_for_text (clipboard);
1790                         } else {
1791                                 selection = NULL;
1792                         }
1793                 }
1794                 dimmed = !((selection != NULL) && (modest_text_utils_validate_recipient (selection, NULL)));
1795         }
1796
1797         return dimmed;
1798 }
1799
1800 /* *********************** static utility functions ******************** */
1801
1802
1803 static gboolean
1804 _selected_folder_not_writeable (ModestMainWindow *win,
1805                                 gboolean for_paste)
1806 {
1807         GtkWidget *folder_view = NULL;
1808         TnyFolderStore *parent_folder = NULL;
1809         ModestEmailClipboard *clipboard = NULL;
1810         ModestTnyFolderRules rules;
1811         gboolean is_local_acc = FALSE;
1812         gboolean xfer_folders = FALSE;
1813         gboolean result = FALSE;
1814
1815         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1816
1817         /* Get folder view */
1818         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1819                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1820         /* If no folder view, always dimmed */
1821         if (!folder_view)
1822                 return TRUE;
1823
1824         /* Get selected folder as parent of new folder to create */
1825         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1826         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1827                 /* If it's the local account and its transfering folders, then do not dim */
1828                 if (TNY_IS_ACCOUNT (parent_folder)) {
1829                         is_local_acc = modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder));
1830                         if (for_paste) {
1831                                 clipboard = modest_runtime_get_email_clipboard ();
1832                                 xfer_folders = modest_email_clipboard_folder_copied (clipboard);
1833                         }
1834                 }
1835
1836                 if (for_paste)
1837                         result = !(is_local_acc && xfer_folders);
1838                 else
1839                         result = !is_local_acc;
1840                 goto frees;
1841         }
1842
1843         /* Check dimmed rule */
1844         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1845         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
1846
1847         /* free */
1848  frees:
1849         if (parent_folder != NULL)
1850                 g_object_unref (parent_folder);
1851
1852         return result;
1853 }
1854
1855 static gboolean
1856 _selected_folder_not_deletable (ModestMainWindow *win)
1857 {
1858         GtkWidget *folder_view = NULL;
1859         TnyFolderStore *parent_folder = NULL;
1860         ModestTnyFolderRules rules;
1861         gboolean result = FALSE;
1862
1863         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1864
1865         /* Get folder view */
1866         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1867                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1868         /* If no folder view, always dimmed */
1869         if (!folder_view)
1870                 return TRUE;
1871
1872         /* Get selected folder as parent of new folder to create */
1873         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1874         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1875                 result = TRUE;
1876                 goto frees;
1877         }
1878
1879         /* Check dimmed rule */
1880         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1881         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_DELETABLE;
1882
1883         /* free */
1884  frees:
1885         if (parent_folder != NULL)
1886                 g_object_unref (parent_folder);
1887
1888         return result;
1889 }
1890
1891 static gboolean
1892 _selected_folder_not_moveable (ModestMainWindow *win)
1893 {
1894         GtkWidget *folder_view = NULL;
1895         TnyFolderStore *parent_folder = NULL;
1896         ModestTnyFolderRules rules;
1897         gboolean result = FALSE;
1898
1899         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1900
1901         /* Get folder view */
1902         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1903                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1904         /* If no folder view, always dimmed */
1905         if (!folder_view)
1906                 return TRUE;
1907
1908         /* Get selected folder as parent of new folder to create */
1909         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1910         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1911                 result = TRUE;
1912                 goto frees;
1913         }
1914
1915         /* Check dimmed rule */
1916         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1917         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE;
1918
1919         /* free */
1920  frees:
1921         if (parent_folder != NULL)
1922                 g_object_unref (parent_folder);
1923
1924         return result;
1925 }
1926
1927 static gboolean
1928 _selected_folder_not_renameable (ModestMainWindow *win)
1929 {
1930         GtkWidget *folder_view = NULL;
1931         TnyFolderStore *parent_folder = NULL;
1932         ModestTnyFolderRules rules;
1933         gboolean result = FALSE;
1934
1935         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1936
1937         /* Get folder view */
1938         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1939                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1940         /* If no folder view, always dimmed */
1941         if (!folder_view)
1942                 return TRUE;
1943
1944         /* Get selected folder as parent of new folder to create */
1945         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1946         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1947                 result = TRUE;
1948                 goto frees;
1949         }
1950
1951         /* Check dimmed rule */
1952         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1953         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_RENAMEABLE;
1954
1955         /* free */
1956  frees:
1957         if (parent_folder != NULL)
1958                 g_object_unref (parent_folder);
1959
1960         return result;
1961 }
1962
1963 static gboolean
1964 _selected_folder_is_root_or_inbox (ModestMainWindow *win)
1965 {
1966         TnyFolderType types[2];
1967         gboolean result = FALSE;
1968
1969         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1970
1971         types[0] = TNY_FOLDER_TYPE_ROOT;
1972         types[1] = TNY_FOLDER_TYPE_INBOX;
1973
1974         /* Check folder type */
1975         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 2);
1976
1977         /* Check pop and MMC accounts */
1978         if (!result) {
1979                 result = _selected_folder_is_root (win);
1980         }
1981
1982         return result;
1983 }
1984
1985
1986 static gboolean
1987 _selected_folder_is_root (ModestMainWindow *win)
1988 {
1989         TnyFolderType types[1];
1990         gboolean result = FALSE;
1991
1992         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1993
1994         /* All accounts are root items: */
1995         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1996                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1997         if (folder_view) {
1998                 gboolean is_account = FALSE;
1999                 TnyFolderStore *folder_store =
2000                         modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2001                 if (folder_store) {
2002                         is_account = TNY_IS_ACCOUNT (folder_store);
2003
2004                         g_object_unref (folder_store);
2005                         folder_store = NULL;
2006                 }
2007
2008                 if (is_account)
2009                         return TRUE;
2010         }
2011
2012         /* Try something more precise: */
2013         types[0] = TNY_FOLDER_TYPE_ROOT;
2014
2015         /* Check folder type */
2016         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 1);
2017
2018         return result;
2019 }
2020
2021 static gboolean
2022 _header_view_is_all_selected (ModestMainWindow *win)
2023 {
2024         const DimmedState *state = NULL;
2025
2026         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2027
2028         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2029
2030         return state->all_selected;
2031 }
2032
2033 static gboolean
2034 _selected_folder_is_empty (ModestMainWindow *win)
2035 {
2036         GtkWidget *folder_view = NULL, *header_view = NULL;
2037         TnyFolderStore *folder = NULL;
2038         gboolean result = FALSE;
2039
2040         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2041
2042         /* Get folder view */
2043         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2044                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2045
2046         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2047                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
2048
2049         /* If no folder view, always dimmed */
2050         if (!folder_view || !header_view)
2051                 return TRUE;
2052
2053         /* Get selected folder as parent of new folder to create */
2054         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2055         if (!(folder && TNY_IS_FOLDER(folder))) {
2056                 if (folder)
2057                         g_object_unref (folder);
2058                 return TRUE;
2059         }
2060
2061         /* Check folder type */
2062         if (modest_header_view_is_empty (MODEST_HEADER_VIEW (header_view)) ||
2063             tny_folder_get_all_count (TNY_FOLDER (folder)) == 0)
2064                 result = TRUE;
2065
2066         /* free */
2067         g_object_unref (folder);
2068
2069         return result;
2070 }
2071
2072 static gboolean
2073 _folder_view_has_focus (ModestWindow *win)
2074 {
2075         GtkWidget *folder_view = NULL;
2076
2077         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2078
2079         /* Get folder view */
2080         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2081                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2082         if (!folder_view)
2083                 return FALSE;
2084
2085         if (gtk_widget_is_focus(folder_view))
2086                 return TRUE;
2087
2088         return FALSE;
2089 }
2090
2091 static gboolean
2092 _selected_folder_is_same_as_source (ModestWindow *win)
2093 {
2094         ModestEmailClipboard *clipboard = NULL;
2095         GtkWidget *folder_view = NULL;
2096         TnyFolderStore *folder = NULL;
2097         gboolean result = FALSE;
2098
2099         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2100
2101         /* Get folder view */
2102         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2103                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2104         if (!folder_view)
2105                 return FALSE;
2106
2107         /* Get selected folder as destination folder */
2108         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2109         if (!(folder && TNY_IS_FOLDER(folder))) {
2110                 result = FALSE;
2111                 goto frees;
2112         }
2113
2114         /* Check clipboard is cleared */
2115         clipboard = modest_runtime_get_email_clipboard ();
2116         if (modest_email_clipboard_cleared (clipboard)) {
2117                 result = FALSE;
2118                 goto frees;
2119         }
2120
2121         /* Check source folder */
2122         result = modest_email_clipboard_check_source_folder (clipboard, TNY_FOLDER (folder));
2123
2124         /* Free */
2125  frees:
2126         g_object_unref (folder);
2127
2128         return result;
2129 }
2130
2131 static gboolean
2132 _selected_folder_is_any_of_type (ModestWindow *win,
2133                                  TnyFolderType types[],
2134                                  guint ntypes)
2135 {
2136         GtkWidget *folder_view = NULL;
2137         TnyFolderStore *folder = NULL;
2138         TnyFolderType folder_type;
2139         guint i=0;
2140         gboolean result = FALSE;
2141
2142         /*Get current folder */
2143         if (MODEST_IS_MAIN_WINDOW(win)) {
2144
2145                 /* Get folder view */
2146                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2147                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2148                 /* If no folder view, always dimmed */
2149                 if (!folder_view)
2150                         return FALSE;
2151
2152                 /* Get selected folder as parent of new folder to create */
2153                 folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2154
2155                 if (!(folder && TNY_IS_FOLDER(folder))) {
2156                         if (folder)
2157                                 g_object_unref (folder);
2158                         return FALSE;
2159                 }
2160
2161                 /* Check folder type */
2162                 result = _folder_is_any_of_type (TNY_FOLDER(folder), types, ntypes);
2163         }
2164         else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2165                 folder_type = modest_msg_view_window_get_folder_type (MODEST_MSG_VIEW_WINDOW (win));
2166                 for (i=0; i < ntypes; i++) {
2167                         result = result || folder_type == types[i];
2168                 }
2169         }
2170
2171
2172         /* free */
2173         if (folder)
2174                 g_object_unref (folder);
2175
2176         return result;
2177 }
2178
2179 static gboolean
2180 _folder_is_any_of_type (TnyFolder *folder,
2181                         TnyFolderType types[],
2182                         guint ntypes)
2183 {
2184         TnyFolderType folder_type;
2185         gboolean result = FALSE;
2186         guint i;
2187
2188         g_return_val_if_fail (TNY_IS_FOLDER(folder), FALSE);
2189
2190         /* Get folder type */
2191         folder_type = modest_tny_folder_guess_folder_type (folder);
2192         if (folder_type == TNY_FOLDER_TYPE_INVALID)
2193                 g_warning ("%s: BUG: TNY_FOLDER_TYPE_INVALID", __FUNCTION__);
2194
2195         /* Check foler type */
2196         for (i=0; i < ntypes; i++) {
2197                 result = result || folder_type == types[i];
2198         }
2199
2200         return result;
2201 }
2202
2203 static gboolean
2204 _clipboard_is_empty (ModestWindow *win)
2205 {
2206         gboolean result = FALSE;
2207
2208         if (MODEST_IS_MAIN_WINDOW (win)) {
2209                 ModestEmailClipboard *clipboard = NULL;
2210                 clipboard = modest_runtime_get_email_clipboard ();
2211                 if (modest_email_clipboard_cleared (clipboard))
2212                  result = TRUE;
2213         }
2214
2215         return result;
2216 }
2217
2218 static gboolean
2219 _invalid_clipboard_selected (ModestWindow *win,
2220                              ModestDimmingRule *rule)
2221 {
2222         const DimmedState *state = NULL;
2223         gboolean result = FALSE;
2224         GtkWidget *focused = NULL;
2225
2226         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2227         state = modest_window_get_dimming_state (win);
2228         /* Get focuesed widget */
2229         focused = gtk_window_get_focus (GTK_WINDOW (win));
2230
2231         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
2232                 gboolean has_selection = FALSE;
2233                 if (GTK_IS_TEXT_VIEW (focused)) {
2234                         GtkTextBuffer *buffer = NULL;
2235                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2236                         has_selection = modest_text_utils_buffer_selection_is_valid (buffer);
2237                 } else if (GTK_IS_EDITABLE (focused)) {
2238                         has_selection = gtk_editable_get_selection_bounds (GTK_EDITABLE (focused), NULL, NULL);
2239                 }
2240                 result = !has_selection;
2241         } else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2242                 if (focused) {
2243                         MODEST_DEBUG_BLOCK (g_message ("FOCUSED %s", g_type_name (G_TYPE_FROM_INSTANCE (focused))););
2244                         if (GTK_IS_LABEL (focused) &&
2245                             !gtk_label_get_selection_bounds (GTK_LABEL (focused), NULL, NULL)) {
2246                                 result = TRUE;
2247                         } else if (GTK_IS_TEXT_VIEW (focused)) {
2248                                 GtkTextBuffer *buffer;
2249                                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2250                                 result = !gtk_text_buffer_get_has_selection (buffer);
2251                         } else if (GTK_IS_HTML (focused)) {
2252                                 const gchar *sel;
2253                                 int len = -1;
2254                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
2255                                 result = ((sel == NULL) || (sel[0] == '\0'));
2256                         } else if (MODEST_IS_ATTACHMENTS_VIEW (focused)) {
2257                                 result = TRUE;
2258                         } else {
2259                                 GtkClipboard *clipboard;
2260                                 gchar *selection;
2261
2262                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
2263                                 /* Get clipboard selection*/
2264                                 selection = gtk_clipboard_wait_for_text (clipboard);
2265                                 /* Check dimming */
2266                                 result = (selection == NULL);
2267                                 g_free (selection);
2268                         }
2269                 } else {
2270                         result = TRUE;
2271                 }
2272
2273                 if (result)
2274                         modest_dimming_rule_set_notification (rule, "");
2275
2276         }
2277         else if (MODEST_IS_MAIN_WINDOW (win)) {
2278                 /* Check dimming */
2279                 result = state->n_selected == 0;
2280                 if (result)
2281                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2282         }
2283
2284         return result;
2285 }
2286
2287
2288 static gboolean
2289 _invalid_attach_selected (ModestWindow *win,
2290                           gboolean unique,
2291                           gboolean for_view,
2292                           gboolean for_remove,
2293                           ModestDimmingRule *rule)
2294 {
2295         TnyList *attachments;
2296         gint n_selected;
2297         TnyHeaderFlags flags;
2298         gboolean nested_attachments = FALSE;
2299         gboolean selected_messages = FALSE;
2300         const DimmedState *state = NULL;
2301         gboolean result = FALSE;
2302
2303         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2304         state = modest_window_get_dimming_state (win);
2305
2306         if (MODEST_IS_MAIN_WINDOW (win)) {
2307                 flags = TNY_HEADER_FLAG_ATTACHMENTS;
2308                 if (!result)
2309                         result = !state->any_has_attachments;
2310         }
2311         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2312
2313                 /* Get selected atachments */
2314                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2315                 n_selected = tny_list_get_length (attachments);
2316
2317                 /* Check unique */
2318                 if (!result) {
2319                         if (unique)
2320                                 result = n_selected != 1;
2321                         else
2322
2323                                 result = n_selected < 1;
2324                 }
2325
2326                 /* Check attached type (view operation not required) */
2327                 if (!result && !for_view)  {
2328                         TnyIterator *iter;
2329                         iter = tny_list_create_iterator (attachments);
2330                         while (!tny_iterator_is_done (iter) && !result) {
2331                                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2332                                 TnyList *nested_list = tny_simple_list_new ();
2333                                 if (!for_remove && modest_tny_mime_part_is_msg (mime_part)) {
2334                                         selected_messages = TRUE;
2335                                         result = TRUE;
2336                                 }
2337                                 tny_mime_part_get_parts (mime_part, nested_list);
2338                                 if (!for_remove && tny_list_get_length (nested_list) > 0) {
2339                                         nested_attachments = TRUE;
2340                                         result = TRUE;
2341                                 }
2342                                 g_object_unref (nested_list);
2343                                 g_object_unref (mime_part);
2344                                 tny_iterator_next (iter);
2345                         }
2346                         g_object_unref (iter);
2347                 }
2348
2349                 /* Set notifications */
2350                 if (result && rule != NULL) {
2351                         if (selected_messages) {
2352                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_save_attach_mail"));
2353                         } else if (nested_attachments) {
2354                                 modest_dimming_rule_set_notification (rule, _("FIXME:unable to save attachments with nested elements"));
2355                         } else if (n_selected == 0) {
2356                                 modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
2357                         } else if (unique) {
2358                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_display_more"));
2359                         }
2360                 }
2361
2362                 /* Free */
2363                 g_object_unref (attachments);
2364         }
2365
2366         return result;
2367 }
2368
2369 static gboolean
2370 _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule)
2371 {
2372         TnyList *attachments = NULL;
2373         TnyIterator *iter;
2374         gint purged = 0;
2375         gint n_attachments = 0;
2376         gboolean result = FALSE;
2377
2378         /* This should check if _all_ the attachments are already purged. If only some
2379          * of them are purged, then it does not cause dim as there's a confirmation dialog
2380          * for removing only local attachments */
2381
2382         /* Get selected atachments */
2383         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2384                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2385         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2386                 /* If we're in main window, we won't know if there are already purged attachments */
2387                 return FALSE;
2388         }
2389
2390         if (attachments == NULL)
2391                 return FALSE;
2392
2393         if (tny_list_get_length (attachments) == 0) {
2394                 g_object_unref (attachments);
2395                 return FALSE;
2396         }
2397
2398         iter = tny_list_create_iterator (attachments);
2399         while (!tny_iterator_is_done (iter)) {
2400                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2401                 if (tny_mime_part_is_purged (mime_part)) {
2402                         purged++;
2403                 }
2404                 n_attachments++;
2405                 g_object_unref (mime_part);
2406                 tny_iterator_next (iter);
2407         }
2408         g_object_unref (iter);
2409
2410         /* Free */
2411         g_object_unref (attachments);
2412
2413         if (all)
2414                 result = (purged == n_attachments);
2415         else
2416                 result = (purged > 0);
2417
2418         /* This string no longer exists, refer to NB#75415 for more info
2419         if (result && (rule != NULL))
2420                 modest_dimming_rule_set_notification (rule, _("mail_ib_attachment_already_purged"));
2421         */
2422
2423         return result;
2424 }
2425
2426 static gboolean
2427 _invalid_msg_selected (ModestMainWindow *win,
2428                        gboolean unique,
2429                        ModestDimmingRule *rule)
2430 {
2431         GtkWidget *folder_view = NULL;
2432         const DimmedState *state = NULL;
2433         gboolean result = FALSE;
2434
2435         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2436         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (rule), FALSE);
2437         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2438
2439         /* Get folder view to check focus */
2440         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2441                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2442
2443         /* Check dimmed rule (TODO: check focus on widgets */
2444         if (!result) {
2445                 result = ((state->n_selected == 0 ) ||
2446                           (gtk_widget_is_focus (folder_view)));
2447                 if (result)
2448                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2449         }
2450         if (!result && unique) {
2451                 result = state->n_selected > 1;
2452                 if (result)
2453                         modest_dimming_rule_set_notification (rule, _("mcen_ib_select_one_message"));
2454         }
2455
2456         return result;
2457 }
2458
2459
2460 static gboolean
2461 _msg_download_in_progress (ModestWindow *win)
2462 {
2463         gboolean result = FALSE;
2464
2465         g_return_val_if_fail (MODEST_IS_WINDOW (win), FALSE);
2466
2467         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2468                 result = modest_msg_view_window_toolbar_on_transfer_mode (MODEST_MSG_VIEW_WINDOW(win));
2469         }
2470         else if (MODEST_IS_MAIN_WINDOW (win)) {
2471                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW(win));
2472         }
2473
2474         return result;
2475 }
2476
2477 static gboolean
2478 _msg_download_completed (ModestMainWindow *win)
2479 {
2480         const DimmedState *state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2481         return state->any_marked_as_cached;
2482 }
2483
2484 static void
2485 fill_list_of_caches (gpointer key, gpointer value, gpointer userdata)
2486 {
2487         GSList **send_queues = (GSList **) userdata;
2488         *send_queues = g_slist_prepend (*send_queues, value);
2489 }
2490
2491 static gboolean
2492 _selected_msg_sent_in_progress (ModestWindow *win)
2493 {
2494         const DimmedState *state = modest_window_get_dimming_state (win);
2495         return state->sent_in_progress;
2496 }
2497
2498
2499 static gboolean
2500 _invalid_folder_for_purge (ModestWindow *win,
2501                            ModestDimmingRule *rule)
2502 {
2503         TnyFolder *folder = NULL;
2504         TnyAccount *account = NULL;
2505         gboolean result = FALSE;
2506
2507         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2508
2509                 /* Get folder and account of message */
2510                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2511                 g_return_val_if_fail(msg != NULL, TRUE);
2512                 folder = tny_msg_get_folder (msg);
2513                 g_object_unref (msg);
2514                 if (folder == NULL) {
2515                         result = TRUE;
2516                         goto frees;
2517                 }
2518         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2519                 GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2520                                                                               MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2521                 if (!folder_view)
2522                         return FALSE;
2523                 folder = (TnyFolder *) modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
2524                 /* Could be a folder store */
2525                 if (folder == NULL || ! TNY_IS_FOLDER (folder))
2526                         goto frees;
2527         } else {
2528                 g_return_val_if_reached (FALSE);
2529         }
2530         account = modest_tny_folder_get_account (folder);
2531         if (account == NULL) goto frees;
2532
2533         /* Check account */
2534         if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (account))) {
2535                 TnyFolderType types[2];
2536                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
2537                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
2538
2539                 if (_selected_folder_is_any_of_type (win, types, 2)) {
2540                         result = TRUE;
2541                 }
2542         } else {
2543                 ModestProtocolType protocol_type = modest_tny_account_get_protocol_type (TNY_ACCOUNT (account));
2544                 /* If it's a remote folder then dim */
2545                 if (modest_protocol_registry_protocol_type_has_tag (modest_runtime_get_protocol_registry (),
2546                                                                     protocol_type,
2547                                                                     MODEST_PROTOCOL_REGISTRY_REMOTE_STORE_PROTOCOLS)) {
2548                         result = TRUE;
2549                 }
2550         }
2551
2552 frees:
2553         if (folder != NULL)
2554                 g_object_unref (folder);
2555         if (account != NULL)
2556                 g_object_unref (account);
2557
2558         return result;
2559 }
2560
2561 static gboolean
2562 _transfer_mode_enabled (ModestWindow *win)
2563 {
2564         gboolean result = FALSE;
2565
2566         /* Check dimming */
2567         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2568                 result = modest_msg_view_window_transfer_mode_enabled (MODEST_MSG_VIEW_WINDOW (win));
2569         } else if (MODEST_IS_MAIN_WINDOW(win)) {
2570                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW (win));
2571         } else {
2572                 g_warning("_transfer_mode_enabled called with wrong window type");
2573         }
2574
2575         return result;
2576 }
2577
2578 static gboolean
2579 _selected_folder_has_subfolder_with_same_name (ModestWindow *win)
2580 {
2581         GtkWidget *folder_view = NULL;
2582         TnyFolderStore *folder = NULL;
2583         ModestEmailClipboard *clipboard = NULL;
2584         const gchar *folder_name = NULL;
2585         gboolean result = FALSE;
2586
2587         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
2588
2589         /*Get current parent folder */
2590         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2591                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2592         /* If no folder view, always dimmed */
2593         if (!folder_view) return FALSE;
2594
2595         /* Get selected folder as parent of new folder to create */
2596         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2597         if (!(folder && TNY_IS_FOLDER(folder))) goto frees;
2598
2599         /* get modest clipboard and source folder */
2600         clipboard = modest_runtime_get_email_clipboard ();
2601         folder_name = modest_email_clipboard_get_folder_name (clipboard);
2602         if (folder_name == NULL) goto frees;
2603
2604         /* Check source subfolders names */
2605         result = modest_tny_folder_has_subfolder_with_name (folder, folder_name,
2606                                                             TRUE);
2607
2608         /* Free */
2609  frees:
2610         if (folder != NULL)
2611                 g_object_unref (folder);
2612
2613
2614         return result;
2615 }
2616
2617 gboolean
2618 modest_ui_dimming_rules_on_save_to_drafts (ModestWindow *win,
2619                                            gpointer user_data)
2620 {
2621         ModestDimmingRule *rule = NULL;
2622
2623         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
2624         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2625         rule = MODEST_DIMMING_RULE (user_data);
2626
2627         /* Check dimmed rule */
2628         return !modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (win));
2629 }
2630
2631 gboolean
2632 modest_ui_dimming_rules_on_insert_image (ModestWindow *win,
2633                                          gpointer user_data)
2634 {
2635         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
2636
2637         ModestMsgEditFormat format =
2638           modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
2639
2640         return (format != MODEST_MSG_EDIT_FORMAT_HTML);
2641 }