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 #ifdef MODEST_TOOLKIT_HILDON2
1753 gboolean
1754 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
1755 {
1756         return FALSE;
1757 }
1758 #else
1759 gboolean
1760 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
1761 {
1762         ModestDimmingRule *rule = NULL;
1763         gboolean dimmed = FALSE;
1764         GtkWidget *focused = NULL;
1765
1766         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1767         rule = MODEST_DIMMING_RULE (user_data);
1768         focused = gtk_window_get_focus (GTK_WINDOW (win));
1769
1770         dimmed = !focused;
1771
1772         if (!dimmed) {
1773                 gchar *selection = NULL;
1774                 if (GTK_IS_TEXT_VIEW (focused)) {
1775                         GtkTextIter start, end;
1776                         GtkTextBuffer *buffer = NULL;
1777                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
1778                         if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end)) {
1779                                 selection = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
1780                         }
1781                 } else if (GTK_IS_LABEL (focused)) {
1782                         selection = modest_text_utils_label_get_selection (GTK_LABEL (focused));
1783                 } else {
1784                         gboolean do_check = TRUE;
1785                         GtkClipboard *clipboard;
1786                         if (GTK_IS_HTML (focused)) {
1787                                 const gchar *sel;
1788                                 int len = -1;
1789                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
1790                                 do_check = !((sel == NULL) || (sel[0] == '\0'));
1791                         } else if (MODEST_IS_ATTACHMENTS_VIEW (focused)) {
1792                                 do_check = FALSE;
1793                         }
1794                         if (do_check) {
1795                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
1796                                 selection = gtk_clipboard_wait_for_text (clipboard);
1797                         } else {
1798                                 selection = NULL;
1799                         }
1800                 }
1801                 dimmed = !((selection != NULL) && (modest_text_utils_validate_recipient (selection, NULL)));
1802         }
1803
1804         return dimmed;
1805 }
1806 #endif
1807
1808 /* *********************** static utility functions ******************** */
1809
1810
1811 static gboolean
1812 _selected_folder_not_writeable (ModestMainWindow *win,
1813                                 gboolean for_paste)
1814 {
1815         GtkWidget *folder_view = NULL;
1816         TnyFolderStore *parent_folder = NULL;
1817         ModestEmailClipboard *clipboard = NULL;
1818         ModestTnyFolderRules rules;
1819         gboolean is_local_acc = FALSE;
1820         gboolean xfer_folders = FALSE;
1821         gboolean result = FALSE;
1822
1823         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1824
1825         /* Get folder view */
1826         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1827                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1828         /* If no folder view, always dimmed */
1829         if (!folder_view)
1830                 return TRUE;
1831
1832         /* Get selected folder as parent of new folder to create */
1833         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1834         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1835                 /* If it's the local account and its transfering folders, then do not dim */
1836                 if (TNY_IS_ACCOUNT (parent_folder)) {
1837                         is_local_acc = modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder));
1838                         if (for_paste) {
1839                                 clipboard = modest_runtime_get_email_clipboard ();
1840                                 xfer_folders = modest_email_clipboard_folder_copied (clipboard);
1841                         }
1842                 }
1843
1844                 if (for_paste)
1845                         result = !(is_local_acc && xfer_folders);
1846                 else
1847                         result = !is_local_acc;
1848                 goto frees;
1849         }
1850
1851         /* Check dimmed rule */
1852         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1853         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
1854
1855         /* free */
1856  frees:
1857         if (parent_folder != NULL)
1858                 g_object_unref (parent_folder);
1859
1860         return result;
1861 }
1862
1863 static gboolean
1864 _selected_folder_not_deletable (ModestMainWindow *win)
1865 {
1866         GtkWidget *folder_view = NULL;
1867         TnyFolderStore *parent_folder = NULL;
1868         ModestTnyFolderRules rules;
1869         gboolean result = FALSE;
1870
1871         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1872
1873         /* Get folder view */
1874         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1875                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1876         /* If no folder view, always dimmed */
1877         if (!folder_view)
1878                 return TRUE;
1879
1880         /* Get selected folder as parent of new folder to create */
1881         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1882         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1883                 result = TRUE;
1884                 goto frees;
1885         }
1886
1887         /* Check dimmed rule */
1888         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1889         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_DELETABLE;
1890
1891         /* free */
1892  frees:
1893         if (parent_folder != NULL)
1894                 g_object_unref (parent_folder);
1895
1896         return result;
1897 }
1898
1899 static gboolean
1900 _selected_folder_not_moveable (ModestMainWindow *win)
1901 {
1902         GtkWidget *folder_view = NULL;
1903         TnyFolderStore *parent_folder = NULL;
1904         ModestTnyFolderRules rules;
1905         gboolean result = FALSE;
1906
1907         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1908
1909         /* Get folder view */
1910         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1911                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1912         /* If no folder view, always dimmed */
1913         if (!folder_view)
1914                 return TRUE;
1915
1916         /* Get selected folder as parent of new folder to create */
1917         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1918         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1919                 result = TRUE;
1920                 goto frees;
1921         }
1922
1923         /* Check dimmed rule */
1924         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1925         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE;
1926
1927         /* free */
1928  frees:
1929         if (parent_folder != NULL)
1930                 g_object_unref (parent_folder);
1931
1932         return result;
1933 }
1934
1935 static gboolean
1936 _selected_folder_not_renameable (ModestMainWindow *win)
1937 {
1938         GtkWidget *folder_view = NULL;
1939         TnyFolderStore *parent_folder = NULL;
1940         ModestTnyFolderRules rules;
1941         gboolean result = FALSE;
1942
1943         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1944
1945         /* Get folder view */
1946         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1947                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1948         /* If no folder view, always dimmed */
1949         if (!folder_view)
1950                 return TRUE;
1951
1952         /* Get selected folder as parent of new folder to create */
1953         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1954         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1955                 result = TRUE;
1956                 goto frees;
1957         }
1958
1959         /* Check dimmed rule */
1960         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1961         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_RENAMEABLE;
1962
1963         /* free */
1964  frees:
1965         if (parent_folder != NULL)
1966                 g_object_unref (parent_folder);
1967
1968         return result;
1969 }
1970
1971 static gboolean
1972 _selected_folder_is_root_or_inbox (ModestMainWindow *win)
1973 {
1974         TnyFolderType types[2];
1975         gboolean result = FALSE;
1976
1977         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1978
1979         types[0] = TNY_FOLDER_TYPE_ROOT;
1980         types[1] = TNY_FOLDER_TYPE_INBOX;
1981
1982         /* Check folder type */
1983         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 2);
1984
1985         /* Check pop and MMC accounts */
1986         if (!result) {
1987                 result = _selected_folder_is_root (win);
1988         }
1989
1990         return result;
1991 }
1992
1993
1994 static gboolean
1995 _selected_folder_is_root (ModestMainWindow *win)
1996 {
1997         TnyFolderType types[1];
1998         gboolean result = FALSE;
1999
2000         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2001
2002         /* All accounts are root items: */
2003         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2004                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2005         if (folder_view) {
2006                 gboolean is_account = FALSE;
2007                 TnyFolderStore *folder_store =
2008                         modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2009                 if (folder_store) {
2010                         is_account = TNY_IS_ACCOUNT (folder_store);
2011
2012                         g_object_unref (folder_store);
2013                         folder_store = NULL;
2014                 }
2015
2016                 if (is_account)
2017                         return TRUE;
2018         }
2019
2020         /* Try something more precise: */
2021         types[0] = TNY_FOLDER_TYPE_ROOT;
2022
2023         /* Check folder type */
2024         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 1);
2025
2026         return result;
2027 }
2028
2029 static gboolean
2030 _header_view_is_all_selected (ModestMainWindow *win)
2031 {
2032         const DimmedState *state = NULL;
2033
2034         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2035
2036         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2037
2038         return state->all_selected;
2039 }
2040
2041 static gboolean
2042 _selected_folder_is_empty (ModestMainWindow *win)
2043 {
2044         GtkWidget *folder_view = NULL, *header_view = NULL;
2045         TnyFolderStore *folder = NULL;
2046         gboolean result = FALSE;
2047
2048         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2049
2050         /* Get folder view */
2051         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2052                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2053
2054         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2055                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
2056
2057         /* If no folder view, always dimmed */
2058         if (!folder_view || !header_view)
2059                 return TRUE;
2060
2061         /* Get selected folder as parent of new folder to create */
2062         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2063         if (!(folder && TNY_IS_FOLDER(folder))) {
2064                 if (folder)
2065                         g_object_unref (folder);
2066                 return TRUE;
2067         }
2068
2069         /* Check folder type */
2070         if (modest_header_view_is_empty (MODEST_HEADER_VIEW (header_view)) ||
2071             tny_folder_get_all_count (TNY_FOLDER (folder)) == 0)
2072                 result = TRUE;
2073
2074         /* free */
2075         g_object_unref (folder);
2076
2077         return result;
2078 }
2079
2080 static gboolean
2081 _folder_view_has_focus (ModestWindow *win)
2082 {
2083         GtkWidget *folder_view = NULL;
2084
2085         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2086
2087         /* Get folder view */
2088         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2089                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2090         if (!folder_view)
2091                 return FALSE;
2092
2093         if (gtk_widget_is_focus(folder_view))
2094                 return TRUE;
2095
2096         return FALSE;
2097 }
2098
2099 static gboolean
2100 _selected_folder_is_same_as_source (ModestWindow *win)
2101 {
2102         ModestEmailClipboard *clipboard = NULL;
2103         GtkWidget *folder_view = NULL;
2104         TnyFolderStore *folder = NULL;
2105         gboolean result = FALSE;
2106
2107         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2108
2109         /* Get folder view */
2110         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2111                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2112         if (!folder_view)
2113                 return FALSE;
2114
2115         /* Get selected folder as destination folder */
2116         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2117         if (!(folder && TNY_IS_FOLDER(folder))) {
2118                 result = FALSE;
2119                 goto frees;
2120         }
2121
2122         /* Check clipboard is cleared */
2123         clipboard = modest_runtime_get_email_clipboard ();
2124         if (modest_email_clipboard_cleared (clipboard)) {
2125                 result = FALSE;
2126                 goto frees;
2127         }
2128
2129         /* Check source folder */
2130         result = modest_email_clipboard_check_source_folder (clipboard, TNY_FOLDER (folder));
2131
2132         /* Free */
2133  frees:
2134         g_object_unref (folder);
2135
2136         return result;
2137 }
2138
2139 static gboolean
2140 _selected_folder_is_any_of_type (ModestWindow *win,
2141                                  TnyFolderType types[],
2142                                  guint ntypes)
2143 {
2144         GtkWidget *folder_view = NULL;
2145         TnyFolderStore *folder = NULL;
2146         TnyFolderType folder_type;
2147         guint i=0;
2148         gboolean result = FALSE;
2149
2150         /*Get current folder */
2151         if (MODEST_IS_MAIN_WINDOW(win)) {
2152
2153                 /* Get folder view */
2154                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2155                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2156                 /* If no folder view, always dimmed */
2157                 if (!folder_view)
2158                         return FALSE;
2159
2160                 /* Get selected folder as parent of new folder to create */
2161                 folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2162
2163                 if (!(folder && TNY_IS_FOLDER(folder))) {
2164                         if (folder)
2165                                 g_object_unref (folder);
2166                         return FALSE;
2167                 }
2168
2169                 /* Check folder type */
2170                 result = _folder_is_any_of_type (TNY_FOLDER(folder), types, ntypes);
2171         }
2172         else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2173                 folder_type = modest_msg_view_window_get_folder_type (MODEST_MSG_VIEW_WINDOW (win));
2174                 for (i=0; i < ntypes; i++) {
2175                         result = result || folder_type == types[i];
2176                 }
2177         }
2178
2179
2180         /* free */
2181         if (folder)
2182                 g_object_unref (folder);
2183
2184         return result;
2185 }
2186
2187 static gboolean
2188 _folder_is_any_of_type (TnyFolder *folder,
2189                         TnyFolderType types[],
2190                         guint ntypes)
2191 {
2192         TnyFolderType folder_type;
2193         gboolean result = FALSE;
2194         guint i;
2195
2196         g_return_val_if_fail (TNY_IS_FOLDER(folder), FALSE);
2197
2198         /* Get folder type */
2199         folder_type = modest_tny_folder_guess_folder_type (folder);
2200         if (folder_type == TNY_FOLDER_TYPE_INVALID)
2201                 g_warning ("%s: BUG: TNY_FOLDER_TYPE_INVALID", __FUNCTION__);
2202
2203         /* Check foler type */
2204         for (i=0; i < ntypes; i++) {
2205                 result = result || folder_type == types[i];
2206         }
2207
2208         return result;
2209 }
2210
2211 static gboolean
2212 _clipboard_is_empty (ModestWindow *win)
2213 {
2214         gboolean result = FALSE;
2215
2216         if (MODEST_IS_MAIN_WINDOW (win)) {
2217                 ModestEmailClipboard *clipboard = NULL;
2218                 clipboard = modest_runtime_get_email_clipboard ();
2219                 if (modest_email_clipboard_cleared (clipboard))
2220                  result = TRUE;
2221         }
2222
2223         return result;
2224 }
2225
2226 static gboolean
2227 _invalid_clipboard_selected (ModestWindow *win,
2228                              ModestDimmingRule *rule)
2229 {
2230         const DimmedState *state = NULL;
2231         gboolean result = FALSE;
2232         GtkWidget *focused = NULL;
2233
2234         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2235         state = modest_window_get_dimming_state (win);
2236         /* Get focuesed widget */
2237         focused = gtk_window_get_focus (GTK_WINDOW (win));
2238
2239         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
2240                 gboolean has_selection = FALSE;
2241                 if (GTK_IS_TEXT_VIEW (focused)) {
2242                         GtkTextBuffer *buffer = NULL;
2243                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2244                         has_selection = modest_text_utils_buffer_selection_is_valid (buffer);
2245                 } else if (GTK_IS_EDITABLE (focused)) {
2246                         has_selection = gtk_editable_get_selection_bounds (GTK_EDITABLE (focused), NULL, NULL);
2247                 }
2248                 result = !has_selection;
2249         } else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2250                 if (focused) {
2251                         MODEST_DEBUG_BLOCK (g_message ("FOCUSED %s", g_type_name (G_TYPE_FROM_INSTANCE (focused))););
2252                         if (GTK_IS_LABEL (focused) &&
2253                             !gtk_label_get_selection_bounds (GTK_LABEL (focused), NULL, NULL)) {
2254                                 result = TRUE;
2255                         } else if (GTK_IS_TEXT_VIEW (focused)) {
2256                                 GtkTextBuffer *buffer;
2257                                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2258                                 result = !gtk_text_buffer_get_has_selection (buffer);
2259                         } else if (GTK_IS_HTML (focused)) {
2260                                 const gchar *sel;
2261                                 int len = -1;
2262                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
2263                                 result = ((sel == NULL) || (sel[0] == '\0'));
2264                         } else if (MODEST_IS_ATTACHMENTS_VIEW (focused)) {
2265                                 result = TRUE;
2266                         } else {
2267                                 GtkClipboard *clipboard;
2268                                 gchar *selection;
2269
2270                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
2271                                 /* Get clipboard selection*/
2272                                 selection = gtk_clipboard_wait_for_text (clipboard);
2273                                 /* Check dimming */
2274                                 result = (selection == NULL);
2275                                 g_free (selection);
2276                         }
2277                 } else {
2278                         result = TRUE;
2279                 }
2280
2281                 if (result)
2282                         modest_dimming_rule_set_notification (rule, "");
2283
2284         }
2285         else if (MODEST_IS_MAIN_WINDOW (win)) {
2286                 /* Check dimming */
2287                 result = state->n_selected == 0;
2288                 if (result)
2289                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2290         }
2291
2292         return result;
2293 }
2294
2295
2296 static gboolean
2297 _invalid_attach_selected (ModestWindow *win,
2298                           gboolean unique,
2299                           gboolean for_view,
2300                           gboolean for_remove,
2301                           ModestDimmingRule *rule)
2302 {
2303         TnyList *attachments;
2304         gint n_selected;
2305         TnyHeaderFlags flags;
2306         gboolean nested_attachments = FALSE;
2307         gboolean selected_messages = FALSE;
2308         const DimmedState *state = NULL;
2309         gboolean result = FALSE;
2310
2311         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2312         state = modest_window_get_dimming_state (win);
2313
2314         if (MODEST_IS_MAIN_WINDOW (win)) {
2315                 flags = TNY_HEADER_FLAG_ATTACHMENTS;
2316                 if (!result)
2317                         result = !state->any_has_attachments;
2318         }
2319         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2320
2321                 /* Get selected atachments */
2322                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2323                 n_selected = tny_list_get_length (attachments);
2324
2325                 /* Check unique */
2326                 if (!result) {
2327                         if (unique)
2328                                 result = n_selected != 1;
2329                         else
2330
2331                                 result = n_selected < 1;
2332                 }
2333
2334                 /* Check attached type (view operation not required) */
2335                 if (!result && !for_view)  {
2336                         TnyIterator *iter;
2337                         iter = tny_list_create_iterator (attachments);
2338                         while (!tny_iterator_is_done (iter) && !result) {
2339                                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2340                                 TnyList *nested_list = tny_simple_list_new ();
2341
2342                                 if (!for_remove && modest_tny_mime_part_is_msg (mime_part)) {
2343                                         TnyMsg *window_msg;
2344                                         window_msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2345                                         if ((TnyMimePart *) window_msg != mime_part) {
2346                                                 selected_messages = TRUE;
2347                                                 result = TRUE;
2348                                         }
2349                                         g_object_unref (window_msg);
2350                                 }
2351                                 tny_mime_part_get_parts (mime_part, nested_list);
2352                                 if (!for_remove && tny_list_get_length (nested_list) > 0) {
2353                                         nested_attachments = TRUE;
2354                                         result = TRUE;
2355                                 }
2356                                 g_object_unref (nested_list);
2357                                 g_object_unref (mime_part);
2358                                 tny_iterator_next (iter);
2359                         }
2360                         g_object_unref (iter);
2361                 }
2362
2363                 /* Set notifications */
2364                 if (result && rule != NULL) {
2365                         if (selected_messages) {
2366                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_save_attach_mail"));
2367                         } else if (nested_attachments) {
2368                                 modest_dimming_rule_set_notification (rule, _("FIXME:unable to save attachments with nested elements"));
2369                         } else if (n_selected == 0) {
2370                                 modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
2371                         } else if (unique) {
2372                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_display_more"));
2373                         }
2374                 }
2375
2376                 /* Free */
2377                 g_object_unref (attachments);
2378         }
2379
2380         return result;
2381 }
2382
2383 static gboolean
2384 _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule)
2385 {
2386         TnyList *attachments = NULL;
2387         TnyIterator *iter;
2388         gint purged = 0;
2389         gint n_attachments = 0;
2390         gboolean result = FALSE;
2391
2392         /* This should check if _all_ the attachments are already purged. If only some
2393          * of them are purged, then it does not cause dim as there's a confirmation dialog
2394          * for removing only local attachments */
2395
2396         /* Get selected atachments */
2397         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2398                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2399         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2400                 /* If we're in main window, we won't know if there are already purged attachments */
2401                 return FALSE;
2402         }
2403
2404         if (attachments == NULL)
2405                 return FALSE;
2406
2407         if (tny_list_get_length (attachments) == 0) {
2408                 g_object_unref (attachments);
2409                 return FALSE;
2410         }
2411
2412         iter = tny_list_create_iterator (attachments);
2413         while (!tny_iterator_is_done (iter)) {
2414                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2415                 if (tny_mime_part_is_purged (mime_part)) {
2416                         purged++;
2417                 }
2418                 n_attachments++;
2419                 g_object_unref (mime_part);
2420                 tny_iterator_next (iter);
2421         }
2422         g_object_unref (iter);
2423
2424         /* Free */
2425         g_object_unref (attachments);
2426
2427         if (all)
2428                 result = (purged == n_attachments);
2429         else
2430                 result = (purged > 0);
2431
2432         /* This string no longer exists, refer to NB#75415 for more info
2433         if (result && (rule != NULL))
2434                 modest_dimming_rule_set_notification (rule, _("mail_ib_attachment_already_purged"));
2435         */
2436
2437         return result;
2438 }
2439
2440 static gboolean
2441 _invalid_msg_selected (ModestMainWindow *win,
2442                        gboolean unique,
2443                        ModestDimmingRule *rule)
2444 {
2445         GtkWidget *folder_view = NULL;
2446         const DimmedState *state = NULL;
2447         gboolean result = FALSE;
2448
2449         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2450         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (rule), FALSE);
2451         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2452
2453         /* Get folder view to check focus */
2454         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2455                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2456
2457         /* Check dimmed rule (TODO: check focus on widgets */
2458         if (!result) {
2459                 result = ((state->n_selected == 0 ) ||
2460                           (gtk_widget_is_focus (folder_view)));
2461                 if (result)
2462                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2463         }
2464         if (!result && unique) {
2465                 result = state->n_selected > 1;
2466                 if (result)
2467                         modest_dimming_rule_set_notification (rule, _("mcen_ib_select_one_message"));
2468         }
2469
2470         return result;
2471 }
2472
2473
2474 static gboolean
2475 _msg_download_in_progress (ModestWindow *win)
2476 {
2477         gboolean result = FALSE;
2478
2479         g_return_val_if_fail (MODEST_IS_WINDOW (win), FALSE);
2480
2481         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2482                 result = modest_msg_view_window_toolbar_on_transfer_mode (MODEST_MSG_VIEW_WINDOW(win));
2483         }
2484         else if (MODEST_IS_MAIN_WINDOW (win)) {
2485                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW(win));
2486         }
2487
2488         return result;
2489 }
2490
2491 static gboolean
2492 _msg_download_completed (ModestMainWindow *win)
2493 {
2494         const DimmedState *state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2495         return state->any_marked_as_cached;
2496 }
2497
2498 static void
2499 fill_list_of_caches (gpointer key, gpointer value, gpointer userdata)
2500 {
2501         GSList **send_queues = (GSList **) userdata;
2502         *send_queues = g_slist_prepend (*send_queues, value);
2503 }
2504
2505 static gboolean
2506 _selected_msg_sent_in_progress (ModestWindow *win)
2507 {
2508         const DimmedState *state = modest_window_get_dimming_state (win);
2509         return state->sent_in_progress;
2510 }
2511
2512
2513 static gboolean
2514 _invalid_folder_for_purge (ModestWindow *win,
2515                            ModestDimmingRule *rule)
2516 {
2517         TnyFolder *folder = NULL;
2518         TnyAccount *account = NULL;
2519         gboolean result = FALSE;
2520
2521         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2522
2523                 /* Get folder and account of message */
2524                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2525                 g_return_val_if_fail(msg != NULL, TRUE);
2526                 folder = tny_msg_get_folder (msg);
2527                 g_object_unref (msg);
2528                 if (folder == NULL) {
2529                         result = TRUE;
2530                         goto frees;
2531                 }
2532         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2533                 GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2534                                                                               MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2535                 if (!folder_view)
2536                         return FALSE;
2537                 folder = (TnyFolder *) modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
2538                 /* Could be a folder store */
2539                 if (folder == NULL || ! TNY_IS_FOLDER (folder))
2540                         goto frees;
2541         } else {
2542                 g_return_val_if_reached (FALSE);
2543         }
2544         account = modest_tny_folder_get_account (folder);
2545         if (account == NULL) goto frees;
2546
2547         /* Check account */
2548         if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (account))) {
2549                 TnyFolderType types[2];
2550                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
2551                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
2552
2553                 if (_selected_folder_is_any_of_type (win, types, 2)) {
2554                         result = TRUE;
2555                 }
2556         } else {
2557                 ModestProtocolType protocol_type = modest_tny_account_get_protocol_type (TNY_ACCOUNT (account));
2558                 /* If it's a remote folder then dim */
2559                 if (modest_protocol_registry_protocol_type_has_tag (modest_runtime_get_protocol_registry (),
2560                                                                     protocol_type,
2561                                                                     MODEST_PROTOCOL_REGISTRY_REMOTE_STORE_PROTOCOLS)) {
2562                         result = TRUE;
2563                 }
2564         }
2565
2566 frees:
2567         if (folder != NULL)
2568                 g_object_unref (folder);
2569         if (account != NULL)
2570                 g_object_unref (account);
2571
2572         return result;
2573 }
2574
2575 static gboolean
2576 _transfer_mode_enabled (ModestWindow *win)
2577 {
2578         gboolean result = FALSE;
2579
2580         /* Check dimming */
2581         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2582                 result = modest_msg_view_window_transfer_mode_enabled (MODEST_MSG_VIEW_WINDOW (win));
2583         } else if (MODEST_IS_MAIN_WINDOW(win)) {
2584                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW (win));
2585         } else {
2586                 g_warning("_transfer_mode_enabled called with wrong window type");
2587         }
2588
2589         return result;
2590 }
2591
2592 static gboolean
2593 _selected_folder_has_subfolder_with_same_name (ModestWindow *win)
2594 {
2595         GtkWidget *folder_view = NULL;
2596         TnyFolderStore *folder = NULL;
2597         ModestEmailClipboard *clipboard = NULL;
2598         const gchar *folder_name = NULL;
2599         gboolean result = FALSE;
2600
2601         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
2602
2603         /*Get current parent folder */
2604         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2605                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2606         /* If no folder view, always dimmed */
2607         if (!folder_view) return FALSE;
2608
2609         /* Get selected folder as parent of new folder to create */
2610         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2611         if (!(folder && TNY_IS_FOLDER(folder))) goto frees;
2612
2613         /* get modest clipboard and source folder */
2614         clipboard = modest_runtime_get_email_clipboard ();
2615         folder_name = modest_email_clipboard_get_folder_name (clipboard);
2616         if (folder_name == NULL) goto frees;
2617
2618         /* Check source subfolders names */
2619         result = modest_tny_folder_has_subfolder_with_name (folder, folder_name,
2620                                                             TRUE);
2621
2622         /* Free */
2623  frees:
2624         if (folder != NULL)
2625                 g_object_unref (folder);
2626
2627
2628         return result;
2629 }
2630
2631 gboolean
2632 modest_ui_dimming_rules_on_save_to_drafts (ModestWindow *win,
2633                                            gpointer user_data)
2634 {
2635         ModestDimmingRule *rule = NULL;
2636
2637         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
2638         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2639         rule = MODEST_DIMMING_RULE (user_data);
2640
2641         /* Check dimmed rule */
2642         return !modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (win));
2643 }
2644
2645 gboolean
2646 modest_ui_dimming_rules_on_insert_image (ModestWindow *win,
2647                                          gpointer user_data)
2648 {
2649         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
2650
2651         ModestMsgEditFormat format =
2652           modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
2653
2654         return (format != MODEST_MSG_EDIT_FORMAT_HTML);
2655 }