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