git.maemo.org Git - modest/blob - src/modest-ui-dimming-rules.c

   1 /* Copyright (c) 2006, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #ifdef HAVE_CONFIG_H
  31 #include <config.h>
  32 #endif /*HAVE_CONFIG_H*/
  33
  34 #include <string.h>
  35 #include "modest-ui-dimming-rules.h"
  36 #include "modest-ui-actions.h"
  37 #include "modest-account-mgr-helpers.h"
  38 #include "modest-dimming-rule.h"
  39 #include "modest-debug.h"
  40 #include "modest-tny-folder.h"
  41 #include "modest-tny-account.h"
  42 #include "modest-tny-msg.h"
  43 #include "modest-tny-mime-part.h"
  44 #include "modest-text-utils.h"
  45 #include "widgets/modest-folder-view.h"
  46 #include "modest-address-book.h"
  47 #include <widgets/modest-attachments-view.h>
  48 #include <modest-runtime.h>
  49 #include <tny-simple-list.h>
  50 #include <widgets/modest-recpt-editor.h>
  51 #include <gtkhtml/gtkhtml.h>
  52 #include <modest-runtime.h>
  53 #ifdef MODEST_TOOLKIT_HILDON2
  54 #include <modest-header-window.h>
  55 #include <modest-folder-window.h>
  56 #endif
  57
  58
  59 static gboolean _folder_is_any_of_type (TnyFolder *folder, TnyFolderType types[], guint ntypes);
  60 static gboolean _invalid_msg_selected (ModestMainWindow *win, gboolean unique, ModestDimmingRule *rule);
  61 static gboolean _invalid_attach_selected (ModestWindow *win,
  62                                           gboolean unique, gboolean for_view, gboolean for_remove,
  63                                           ModestDimmingRule *rule);
  64 static gboolean _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule);
  65 static gboolean _clipboard_is_empty (ModestWindow *win);
  66 static gboolean _invalid_clipboard_selected (ModestWindow *win, ModestDimmingRule *rule);
  67 static gboolean _selected_folder_not_writeable (ModestMainWindow *win, gboolean for_paste);
  68 static gboolean _selected_folder_not_moveable (ModestMainWindow *win);
  69 static gboolean _selected_folder_not_renameable (ModestMainWindow *win);
  70 static gboolean _selected_folder_not_deletable (ModestMainWindow *win);
  71 static gboolean _selected_folder_is_any_of_type (ModestWindow *win, TnyFolderType types[], guint ntypes);
  72 static gboolean _selected_folder_is_root_or_inbox (ModestMainWindow *win);
  73 static gboolean _selected_folder_is_root (ModestMainWindow *win);
  74 static gboolean _header_view_is_all_selected (ModestMainWindow *win);
  75 static gboolean _selected_folder_is_empty (ModestMainWindow *win);
  76 static gboolean _folder_view_has_focus (ModestWindow *win);
  77 static gboolean _selected_folder_is_same_as_source (ModestWindow *win);
  78 static gboolean _msg_download_in_progress (ModestWindow *win);
  79 static gboolean _msg_download_completed (ModestMainWindow *win);
  80 static gboolean _selected_msg_sent_in_progress (ModestWindow *win);
  81 static gboolean _invalid_folder_for_purge (ModestWindow *win, ModestDimmingRule *rule);
  82 static gboolean _transfer_mode_enabled (ModestWindow *win);
  83 static gboolean _selected_folder_has_subfolder_with_same_name (ModestWindow *win);
  84 static void fill_list_of_caches (gpointer key, gpointer value, gpointer userdata);
  85 static gboolean _send_receive_in_progress (ModestWindow *win);
  86 static gboolean _msgs_send_in_progress (void);
  87 static gboolean _all_msgs_in_sending_status (ModestHeaderView *header_view) G_GNUC_UNUSED;
  88
  89 static DimmedState *
  90 _define_main_window_dimming_state (ModestMainWindow *window)
  91 {
  92         DimmedState *state = NULL;
  93         GtkWidget *focused_widget = NULL;
  94         GtkWidget *header_view = NULL;
  95         GtkTreeModel *model = NULL;
  96         TnyList *selected_headers = NULL;
  97         TnyIterator *iter = NULL;
  98         TnyHeader *header = NULL;
  99         ModestCacheMgr *cache_mgr = NULL;
 100         GHashTable *send_queue_cache = NULL;
 101         ModestTnySendQueue *send_queue = NULL;
 102         GSList *send_queues = NULL, *node = NULL;
 103         ModestWindowMgr *mgr = NULL;
 104         gboolean found = FALSE;
 105         gchar *msg_uid = NULL;
 106         TnyHeaderFlags flags;
 107         gboolean all_deleted = TRUE;
 108         gboolean all_seen = TRUE;
 109         gboolean all_cached = TRUE;
 110         gboolean all_has_attach = TRUE;
 111         TnyFolder *folder = NULL;
 112
 113         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(window), NULL);
 114
 115         /* Init state */
 116         state = g_slice_new0 (DimmedState);
 117         state->n_selected = 0;
 118         state->already_opened_msg = 0;
 119         state->any_marked_as_deleted = FALSE;
 120         state->all_marked_as_deleted = FALSE;
 121         state->any_marked_as_seen = FALSE;
 122         state->all_marked_as_seen = FALSE;
 123         state->any_marked_as_cached = FALSE;
 124         state->all_marked_as_cached = FALSE;
 125         state->any_has_attachments = FALSE;
 126         state->all_has_attachments = FALSE;
 127         state->sent_in_progress = FALSE;
 128         state->all_selected = FALSE;
 129
 130         /* Get focused widget */
 131         focused_widget = gtk_window_get_focus (GTK_WINDOW (window));
 132         if (MODEST_IS_FOLDER_VIEW (focused_widget)) {
 133                 state->n_selected++;
 134                 return state;
 135         } else if (MODEST_IS_HEADER_VIEW (focused_widget)) {
 136                 header_view = focused_widget;
 137         } else {
 138                 header_view = modest_main_window_get_child_widget (window, MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
 139         }
 140
 141         /* Get header view and selected headers */
 142         selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
 143         if (!selected_headers)
 144                 return state;
 145
 146         /* Examine selected headers */
 147         iter = tny_list_create_iterator (selected_headers);
 148         while (!tny_iterator_is_done (iter)) {
 149                 header = TNY_HEADER (tny_iterator_get_current (iter));
 150                 flags = tny_header_get_flags (header);
 151
 152                 /* No selected */
 153                 state->n_selected++;
 154
 155                 /* Already opened */
 156                 mgr = modest_runtime_get_window_mgr ();
 157                 if (modest_window_mgr_find_registered_header (mgr, header, NULL))
 158                         state->already_opened_msg++;
 159
 160
 161                 /* Mark as deleted */
 162                 all_deleted = all_deleted && (flags & TNY_HEADER_FLAG_DELETED);
 163                 state->all_marked_as_deleted = all_deleted;
 164                 if (!state->any_marked_as_deleted)
 165                         state->any_marked_as_deleted = flags & TNY_HEADER_FLAG_DELETED;
 166
 167                 /* Mark as seen */
 168                 all_seen = all_seen && (flags & TNY_HEADER_FLAG_SEEN);
 169                 state->all_marked_as_seen = all_seen;
 170                 if (!state->any_marked_as_seen)
 171                         state->any_marked_as_seen = flags & TNY_HEADER_FLAG_SEEN;
 172
 173                 /* Mark as cached */
 174                 all_cached = all_cached && (flags & TNY_HEADER_FLAG_CACHED);
 175                 state->all_marked_as_cached = all_cached;
 176                 if (!state->any_marked_as_cached)
 177                         state->any_marked_as_cached = flags & TNY_HEADER_FLAG_CACHED;
 178
 179                 /* Mark has_attachments */
 180                 all_has_attach = all_has_attach && (flags & TNY_HEADER_FLAG_ATTACHMENTS);
 181                 state->all_has_attachments = all_has_attach;
 182                 if (!state->any_has_attachments)
 183                         state->any_has_attachments = flags & TNY_HEADER_FLAG_ATTACHMENTS;
 184
 185                 /* sent in progress */
 186                 folder = tny_header_get_folder (header);
 187                 if (folder) {
 188                         if (modest_tny_folder_guess_folder_type (folder) == TNY_FOLDER_TYPE_OUTBOX) {
 189                                 msg_uid = modest_tny_send_queue_get_msg_id (header);
 190                                 if (!state->sent_in_progress) {
 191                                         cache_mgr = modest_runtime_get_cache_mgr ();
 192                                         send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
 193                                                                                        MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
 194
 195                                         g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
 196
 197                                         for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
 198                                                 send_queue = MODEST_TNY_SEND_QUEUE (node->data);
 199
 200                                                 /* Check if msg uid is being processed inside send queue */
 201                                                 found = modest_tny_send_queue_msg_is_being_sent (send_queue, msg_uid);
 202                                         }
 203                                         state->sent_in_progress = found;
 204                                 }
 205                         }
 206                         g_object_unref (folder);
 207                 }
 208                 tny_iterator_next (iter);
 209                 g_object_unref (header);
 210         }
 211
 212         /* check if all the headers are selected or not */
 213         model = gtk_tree_view_get_model(GTK_TREE_VIEW(header_view));
 214         if (model != NULL){
 215                 gint count;
 216                 count = gtk_tree_model_iter_n_children(model, NULL);
 217                 if(state->n_selected == count)
 218                         state->all_selected = TRUE;
 219         }
 220
 221         /* Free */
 222         g_free(msg_uid);
 223         g_object_unref(selected_headers);
 224         g_object_unref(iter);
 225         g_slist_free (send_queues);
 226
 227         return state;
 228 }
 229
 230 static DimmedState *
 231 _define_msg_view_window_dimming_state (ModestMsgViewWindow *window)
 232 {
 233         DimmedState *state = NULL;
 234         TnyHeader *header = NULL;
 235         ModestCacheMgr *cache_mgr = NULL;
 236         GHashTable *send_queue_cache = NULL;
 237         ModestTnySendQueue *send_queue = NULL;
 238         GSList *send_queues = NULL, *node = NULL;
 239         gboolean found = FALSE;
 240         gchar *msg_uid = NULL;
 241         TnyHeaderFlags flags;
 242         gboolean all_deleted = TRUE;
 243         gboolean all_seen = TRUE;
 244         gboolean all_cached = TRUE;
 245         gboolean all_has_attach = TRUE;
 246
 247         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(window), NULL);
 248
 249         /* Init state */
 250         state = g_slice_new0 (DimmedState);
 251         state->n_selected = 0;
 252         state->already_opened_msg = 0;
 253         state->any_marked_as_deleted = FALSE;
 254         state->all_marked_as_deleted = FALSE;
 255         state->any_marked_as_seen = FALSE;
 256         state->all_marked_as_seen = FALSE;
 257         state->any_marked_as_cached = FALSE;
 258         state->all_marked_as_cached = FALSE;
 259         state->any_has_attachments = FALSE;
 260         state->all_has_attachments = FALSE;
 261         state->sent_in_progress = FALSE;
 262
 263         header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW(window));
 264         if (header == NULL)
 265                 return state;
 266         g_return_val_if_fail (TNY_IS_HEADER(header), state);
 267         flags = tny_header_get_flags (header);
 268
 269         /* Selected */
 270         state->n_selected++;
 271
 272         /* Mark as deleted */
 273         all_deleted = all_deleted && (flags & TNY_HEADER_FLAG_DELETED);
 274         state->all_marked_as_deleted = all_deleted;
 275         if (!state->any_marked_as_deleted)
 276                 state->any_marked_as_deleted = flags & TNY_HEADER_FLAG_DELETED;
 277
 278         /* Mark as seen */
 279         all_seen = all_seen && (flags & TNY_HEADER_FLAG_SEEN);
 280         state->all_marked_as_seen = all_seen;
 281         if (!state->any_marked_as_seen)
 282                 state->any_marked_as_seen = flags & TNY_HEADER_FLAG_SEEN;
 283
 284         /* Mark as cached */
 285         all_cached = all_cached && (flags & TNY_HEADER_FLAG_CACHED);
 286         state->all_marked_as_cached = all_cached;
 287         if (!state->any_marked_as_cached)
 288                 state->any_marked_as_cached = flags & TNY_HEADER_FLAG_CACHED;
 289
 290         /* Mark has_attachments */
 291         all_has_attach = all_has_attach && (flags & TNY_HEADER_FLAG_ATTACHMENTS);
 292         state->all_has_attachments = all_has_attach;
 293         if (!state->any_has_attachments)
 294                 state->any_has_attachments = (flags & TNY_HEADER_FLAG_ATTACHMENTS)?1:0;
 295
 296         /* sent in progress */
 297         msg_uid = modest_tny_send_queue_get_msg_id (header);
 298         if (!state->sent_in_progress) {
 299                 cache_mgr = modest_runtime_get_cache_mgr ();
 300                 send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
 301                                                                MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
 302
 303                 g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
 304
 305                 for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
 306                         send_queue = MODEST_TNY_SEND_QUEUE (node->data);
 307
 308                         /* Check if msg uid is being processed inside send queue */
 309                         found = modest_tny_send_queue_msg_is_being_sent (send_queue, msg_uid);
 310                 }
 311                 state->sent_in_progress = found;
 312         }
 313
 314         /* Free */
 315         g_free(msg_uid);
 316         g_object_unref (header);
 317         g_slist_free (send_queues);
 318
 319         return state;
 320 }
 321
 322
 323 DimmedState *
 324 modest_ui_dimming_rules_define_dimming_state (ModestWindow *window)
 325 {
 326         DimmedState *state = NULL;
 327
 328         g_return_val_if_fail (MODEST_IS_WINDOW(window), NULL);
 329
 330         if (MODEST_IS_MAIN_WINDOW (window))
 331                 state = _define_main_window_dimming_state (MODEST_MAIN_WINDOW(window));
 332         else if (MODEST_IS_MSG_VIEW_WINDOW (window)) {
 333                 state = _define_msg_view_window_dimming_state (MODEST_MSG_VIEW_WINDOW(window));
 334         }
 335
 336         return state;
 337 }
 338
 339 gboolean
 340 modest_ui_dimming_rules_on_new_msg (ModestWindow *win, gpointer user_data)
 341 {
 342         ModestDimmingRule *rule = NULL;
 343         gboolean dimmed = FALSE;
 344
 345         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 346         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 347         rule = MODEST_DIMMING_RULE (user_data);
 348
 349         /* Check dimmed rule */
 350         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
 351 #ifndef MODEST_TOOLKIT_HILDON2
 352                 dimmed = _msg_download_in_progress (win);
 353                 if (dimmed)
 354                         modest_dimming_rule_set_notification (rule, "");
 355 #endif
 356         } else if (MODEST_IS_MAIN_WINDOW(win)) {
 357                 dimmed = !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
 358                                                           TRUE);
 359                 if (dimmed)
 360                         modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
 361         }
 362
 363         return dimmed;
 364 }
 365
 366 gboolean
 367 modest_ui_dimming_rules_on_new_folder (ModestWindow *win, gpointer user_data)
 368 {
 369         ModestDimmingRule *rule = NULL;
 370         GtkWidget *folder_view = NULL;
 371         TnyFolderStore *parent_folder = NULL;
 372         gboolean dimmed = FALSE;
 373
 374         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 375         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 376         rule = MODEST_DIMMING_RULE (user_data);
 377
 378         dimmed = _transfer_mode_enabled (win);
 379         if (dimmed) {
 380                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 381                 return dimmed;
 382         }
 383
 384         /* Get selected folder as parent of new folder to create */
 385         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 386                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 387         if (!folder_view) /* folder view may not have been created yet */
 388                 return TRUE;
 389
 390         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
 391         if (!parent_folder)
 392                 return TRUE;
 393
 394         if (TNY_IS_ACCOUNT (parent_folder)) {
 395                 /* If it's the local account then do not dim */
 396                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
 397                         dimmed = FALSE;
 398                 } else {
 399                         ModestProtocolType protocol_type = modest_tny_account_get_protocol_type (TNY_ACCOUNT (parent_folder));
 400                         if (protocol_type != MODEST_PROTOCOL_REGISTRY_TYPE_INVALID) {
 401                                 ModestProtocolRegistry *protocol_registry;
 402
 403                                 protocol_registry = modest_runtime_get_protocol_registry ();
 404                                 /* If account does not support folders (pop) then dim */
 405                                 dimmed = (!modest_protocol_registry_protocol_type_has_tag (protocol_registry, protocol_type,
 406                                                                                            MODEST_PROTOCOL_REGISTRY_STORE_HAS_FOLDERS));
 407                                 if (dimmed)
 408                                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 409                         }
 410                 }
 411         } else {
 412                 TnyFolderType types[3];
 413
 414                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 415                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 416                 types[2] = TNY_FOLDER_TYPE_SENT;
 417
 418                 /* Apply folder rules */
 419                 if (!dimmed) {
 420                         dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win), FALSE);
 421                         if (dimmed)
 422                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 423                 }
 424                 if (!dimmed) {
 425                         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 426                         if (dimmed)
 427                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 428                 }
 429         }
 430
 431         /* if not the folder is selected then dim */
 432         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 433                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 434         if (folder_view && !gtk_widget_is_focus (folder_view))
 435                 dimmed = TRUE;
 436
 437         g_object_unref (parent_folder);
 438
 439         return dimmed;
 440 }
 441
 442 gboolean
 443 modest_ui_dimming_rules_on_delete (ModestWindow *win, gpointer user_data)
 444 {
 445         ModestDimmingRule *rule = NULL;
 446         GtkWidget *folder_view = NULL;
 447         GtkWidget *header_view = NULL;
 448         gboolean dimmed = FALSE;
 449
 450         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 451         rule = MODEST_DIMMING_RULE (user_data);
 452
 453         if (MODEST_IS_MAIN_WINDOW (win)) {
 454                 /* Get the folder view */
 455                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 456                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 457
 458                 /* Get header view */
 459                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 460                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
 461
 462                 if (header_view && gtk_widget_is_focus (header_view))
 463                         dimmed = modest_ui_dimming_rules_on_delete_msg (win, rule);
 464
 465                 if (folder_view && gtk_widget_is_focus (folder_view))
 466                         dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 467
 468                 if (header_view && folder_view &&
 469                     !gtk_widget_is_focus (header_view) &&
 470                     !gtk_widget_is_focus (folder_view)) {
 471                         dimmed = TRUE;
 472                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_nothing_to_delete"));
 473                 }
 474
 475 #ifdef MODEST_TOOLKIT_HILDON2
 476         } else if (MODEST_IS_FOLDER_WINDOW (win)) {
 477                 dimmed = modest_ui_dimming_rules_on_folder_window_delete (win, user_data);
 478         } else if (MODEST_IS_HEADER_WINDOW (win)) {
 479
 480                 if (!dimmed)
 481                         dimmed = _transfer_mode_enabled (win);
 482
 483                 if (dimmed)
 484                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 485
 486                 if (!dimmed) {
 487                         GtkWidget *header_view;
 488                         TnyFolder *folder;
 489
 490                         header_view = GTK_WIDGET (modest_header_window_get_header_view (MODEST_HEADER_WINDOW (win)));
 491                         folder = modest_header_view_get_folder (MODEST_HEADER_VIEW (header_view));
 492                         if (folder) {
 493                                 dimmed = (tny_folder_get_all_count (TNY_FOLDER (folder)) == 0) ||
 494                                         modest_header_view_is_empty (MODEST_HEADER_VIEW (header_view));
 495
 496                                 if (!dimmed &&
 497                                     (tny_folder_get_folder_type (TNY_FOLDER (folder)) == TNY_FOLDER_TYPE_OUTBOX)) {
 498                                         dimmed = _all_msgs_in_sending_status (MODEST_HEADER_VIEW (header_view));;
 499                                 }
 500                                 g_object_unref (folder);
 501                         }
 502                 }
 503
 504 #endif
 505         } else {
 506                 dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 507         }
 508
 509         return dimmed;
 510 }
 511
 512
 513
 514 gboolean
 515 modest_ui_dimming_rules_on_delete_folder (ModestWindow *win, gpointer user_data)
 516 {
 517         ModestDimmingRule *rule = NULL;
 518         TnyFolderType types[6];
 519         gboolean dimmed = FALSE;
 520
 521         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 522         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 523         rule = MODEST_DIMMING_RULE (user_data);
 524
 525         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 526         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 527         types[2] = TNY_FOLDER_TYPE_SENT;
 528         types[3] = TNY_FOLDER_TYPE_INBOX;
 529         types[4] = TNY_FOLDER_TYPE_ROOT;
 530         types[5] = TNY_FOLDER_TYPE_ARCHIVE;
 531
 532
 533         /* Check dimmed rule */
 534         dimmed = _selected_folder_not_deletable (MODEST_MAIN_WINDOW(win));
 535         if (dimmed)
 536                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 537         if (!dimmed) {
 538                 dimmed = _selected_folder_is_any_of_type (win, types, 6);
 539                 if (dimmed)
 540                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 541         }
 542         if (!dimmed) {
 543                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 544                 if (dimmed)
 545                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 546         }
 547         if (!dimmed) {
 548                 dimmed = _transfer_mode_enabled (win);
 549                 if (dimmed)
 550                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 551         }
 552
 553         return dimmed;
 554 }
 555
 556 gboolean
 557 modest_ui_dimming_rules_on_sort (ModestWindow *win, gpointer user_data)
 558 {
 559         ModestDimmingRule *rule = NULL;
 560         gboolean dimmed = FALSE;
 561
 562 #ifdef MODEST_TOOLKIT_HILDON2
 563         if (MODEST_IS_HEADER_WINDOW (win)) {
 564                 return FALSE;
 565         }
 566 #endif
 567
 568         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 569         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 570         rule = MODEST_DIMMING_RULE (user_data);
 571
 572         /* Check dimmed rule */
 573         dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
 574
 575         if (!dimmed)
 576                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 577
 578         return dimmed;
 579
 580 }
 581
 582 gboolean
 583 modest_ui_dimming_rules_on_rename_folder (ModestWindow *win, gpointer user_data)
 584 {
 585         ModestDimmingRule *rule = NULL;
 586         TnyFolderType types[4];
 587         gboolean dimmed = FALSE;
 588
 589         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 590         rule = MODEST_DIMMING_RULE (user_data);
 591
 592         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 593         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 594         types[2] = TNY_FOLDER_TYPE_SENT;
 595         types[3] = TNY_FOLDER_TYPE_ARCHIVE;
 596
 597         /* Check dimmed rule */
 598         if (MODEST_IS_MAIN_WINDOW (win)) {
 599                 dimmed = _selected_folder_not_renameable (MODEST_MAIN_WINDOW(win));
 600                 if (dimmed)
 601                         modest_dimming_rule_set_notification (rule, "");
 602                 if (!dimmed) {
 603                         dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 604                         if (dimmed)
 605                                 modest_dimming_rule_set_notification (rule, "");
 606                 }
 607         }
 608
 609 #ifdef MODEST_TOOLKIT_HILDON2
 610         if (MODEST_IS_FOLDER_WINDOW (win)) {
 611                 ModestFolderView *folder_view;
 612                 folder_view = modest_folder_window_get_folder_view (MODEST_FOLDER_WINDOW (win));
 613                 dimmed = !modest_folder_view_any_folder_fulfils_rules (folder_view,
 614                                                                        MODEST_FOLDER_RULES_FOLDER_NON_RENAMEABLE);
 615         }
 616 #endif
 617
 618         if (!dimmed) {
 619                 dimmed = _selected_folder_is_any_of_type (win, types, 4);
 620                 if (dimmed)
 621                         modest_dimming_rule_set_notification (rule, "");
 622         }
 623
 624         return dimmed;
 625 }
 626
 627 gboolean
 628 modest_ui_dimming_rules_on_open_msg (ModestWindow *win, gpointer user_data)
 629 {
 630         ModestDimmingRule *rule = NULL;
 631         gboolean dimmed = FALSE;
 632         const DimmedState *state = NULL;
 633
 634         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 635         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 636         rule = MODEST_DIMMING_RULE (user_data);
 637         state = modest_window_get_dimming_state (win);
 638
 639         /* Check dimmed rule */
 640         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 641         if (!dimmed) {
 642                 dimmed = state->any_marked_as_deleted;
 643                 if (dimmed) {
 644                         gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 645                         modest_dimming_rule_set_notification (rule, msg);
 646                         g_free (msg);
 647                 }
 648         }
 649         if (!dimmed) {
 650                 dimmed = _selected_msg_sent_in_progress (win);
 651                 if (dimmed)
 652                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_open_while_sent"));
 653         }
 654
 655         return dimmed;
 656 }
 657
 658 gboolean
 659 modest_ui_dimming_rules_on_reply_msg (ModestWindow *win, gpointer user_data)
 660 {
 661         ModestDimmingRule *rule = NULL;
 662         gboolean dimmed = FALSE;
 663         TnyFolderType types[3];
 664
 665         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 666         rule = MODEST_DIMMING_RULE (user_data);
 667
 668         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 669         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 670         types[2] = TNY_FOLDER_TYPE_ROOT;
 671
 672         /* Check dimmed rule */
 673         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 674         if (dimmed)
 675                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 676
 677         /* main window dimming rules */
 678         if (MODEST_IS_MAIN_WINDOW(win)) {
 679
 680                 if (!dimmed) {
 681                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 682                         if (dimmed)
 683                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_nothing_to_reply"));
 684                 }
 685                 if (!dimmed) {
 686                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, rule);
 687                 }
 688         /* msg view window dimming rules */
 689         } else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
 690
 691                 /* This could happen if we load the msg view window with a
 692                    preview before loading the full message */
 693                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
 694                 if (!msg) {
 695                         dimmed = TRUE;
 696                 } else {
 697                         g_object_unref (msg);
 698                 }
 699
 700                 if (!dimmed) {
 701                         dimmed = _transfer_mode_enabled (win);
 702                         if (dimmed)
 703                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 704                 }
 705                 if (!dimmed) {
 706                         dimmed = _msg_download_in_progress (win);
 707                         if (dimmed)
 708                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 709                 }
 710         }
 711
 712         return dimmed;
 713 }
 714
 715
 716 gboolean
 717 modest_ui_dimming_rules_on_contents_msg (ModestWindow *win, gpointer user_data)
 718 {
 719         ModestDimmingRule *rule = NULL;
 720         gboolean dimmed = FALSE;
 721
 722         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 723         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 724         rule = MODEST_DIMMING_RULE (user_data);
 725
 726         /* Check dimmed rule */
 727         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 728         if (!dimmed) {
 729                 dimmed = _msg_download_completed (MODEST_MAIN_WINDOW(win));
 730                 if (dimmed)
 731                         modest_dimming_rule_set_notification (rule, "");
 732         }
 733
 734         return dimmed;
 735 }
 736
 737 gboolean
 738 modest_ui_dimming_rules_always_dimmed (ModestWindow *win, gpointer user_data)
 739 {
 740         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 741
 742         return TRUE;
 743 }
 744
 745 static gboolean
 746 _message_already_sent (ModestMsgViewWindow *view_window)
 747 {
 748         TnyHeader *header;
 749         TnyFolder *folder;
 750         gboolean already_sent = FALSE;
 751
 752         header = modest_msg_view_window_get_header (view_window);
 753         if (header) {
 754                 folder = tny_header_get_folder (header);
 755                 if (folder) {
 756                         if (modest_tny_folder_guess_folder_type (folder) ==
 757                             TNY_FOLDER_TYPE_OUTBOX) {
 758                                 ModestTnySendQueueStatus status =
 759                                         modest_tny_all_send_queues_get_msg_status (header);
 760                                 if (status == MODEST_TNY_SEND_QUEUE_UNKNOWN ||
 761                                     status == MODEST_TNY_SEND_QUEUE_SENDING)
 762                                         already_sent = TRUE;
 763                         }
 764                         g_object_unref (folder);
 765                 }
 766                 g_object_unref (header);
 767         }
 768         return already_sent;
 769 }
 770
 771
 772 gboolean
 773 modest_ui_dimming_rules_on_delete_msg (ModestWindow *win, gpointer user_data)
 774 {
 775         ModestDimmingRule *rule = NULL;
 776         const DimmedState *state = NULL;
 777         gboolean dimmed = FALSE;
 778
 779         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 780         rule = MODEST_DIMMING_RULE (user_data);
 781         state = modest_window_get_dimming_state (win);
 782
 783         /* If we're in transfer mode then do not allow to delete messages */
 784         dimmed = _transfer_mode_enabled (win);
 785         if (dimmed) {
 786                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 787                 return dimmed;
 788         }
 789
 790         /* Check dimmed rule */
 791         if (MODEST_IS_MAIN_WINDOW (win)) {
 792                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 793                 if (dimmed)
 794                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_nothing_to_delete"));
 795                 if (!dimmed) {
 796                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 797                 }
 798                 if (!dimmed) {
 799                         dimmed = state->sent_in_progress;
 800                         if (dimmed)
 801                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 802                 }
 803                 if (!dimmed) {
 804                         dimmed = state->any_marked_as_deleted;
 805                         if (dimmed) {
 806                                 gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 807                                 modest_dimming_rule_set_notification (rule, msg);
 808                                 g_free (msg);
 809                         }
 810                 }
 811                 if (!dimmed) {
 812                         dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
 813                         if (dimmed) {
 814                                 gchar *message = NULL;
 815
 816                                 message = g_strdup_printf(_("mcen_nc_unable_to_delete_n_messages"),
 817                                                           state->already_opened_msg);
 818                                 modest_dimming_rule_set_notification (rule, message);
 819                                 g_free(message);
 820                         }
 821
 822                 }
 823         }
 824         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
 825                 /* This could happen if we load the msg view window with a
 826                    preview before loading the full message */
 827                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
 828                 if (!msg) {
 829                         dimmed = TRUE;
 830                 } else {
 831                         g_object_unref (msg);
 832                 }
 833
 834                 if (!dimmed) {
 835                         dimmed = state->any_marked_as_deleted;
 836                         if (dimmed) {
 837                                 gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 838                                 modest_dimming_rule_set_notification (rule, msg);
 839                                 g_free (msg);
 840                         }
 841                 }
 842                 if (!dimmed) {
 843                         dimmed = state->sent_in_progress;
 844                         if (dimmed)
 845                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 846                 }
 847
 848                 /* This could happen if we're viewing a message of the
 849                    outbox that has been already sent */
 850                 if (!dimmed)
 851                         dimmed = _message_already_sent (MODEST_MSG_VIEW_WINDOW(win));
 852
 853                 /* The delete button should be dimmed when viewing an attachment,
 854                  * but should be enabled when viewing a message from the list,
 855                  * or when viewing a search result.
 856                  */
 857                 if (!dimmed) {
 858                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
 859                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW(win));
 860                                 if (dimmed) {
 861                                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 862                                 }
 863                         }
 864                 }
 865         }
 866
 867         return dimmed;
 868 }
 869
 870 gboolean
 871 modest_ui_dimming_rules_on_details (ModestWindow *win, gpointer user_data)
 872 {
 873         ModestDimmingRule *rule = NULL;
 874         GtkWidget *header_view = NULL;
 875         gboolean dimmed = FALSE;
 876
 877         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 878         rule = MODEST_DIMMING_RULE (user_data);
 879
 880         /* main window dimming rules */
 881         if (MODEST_IS_MAIN_WINDOW(win)) {
 882
 883                 /* Check dimmed rule */
 884                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 885                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
 886
 887                 /* If the header view has the focus: */
 888                 if (header_view && gtk_widget_is_focus (header_view)) {
 889                         /* Check dimmed rule */
 890                         if (!dimmed)
 891                                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 892                 }
 893                 else {
 894                         /* If the folder view has the focus: */
 895                         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 896                                 MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 897                         if (folder_view && gtk_widget_is_focus (folder_view)) {
 898                                 TnyFolderStore *folder_store
 899                                         = modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
 900                                 if (folder_store) {
 901                                         /* Only enable for folders, not accounts,
 902                                          * though the UI spec is not clear about that.
 903                                          * If we enable this for accounts then we must
 904                                          * add code to handle them in modest_ui_actions_on_details(). */
 905                                         if (!TNY_IS_FOLDER(folder_store)) {
 906                                                 dimmed = TRUE;
 907                                                 modest_dimming_rule_set_notification (rule, "");
 908                                         }
 909
 910                                         g_object_unref (folder_store);
 911                                 } else {
 912                                         dimmed = TRUE;
 913                                         modest_dimming_rule_set_notification (rule, "");
 914                                 }
 915                                 if (!dimmed) {
 916                                         dimmed = _msg_download_in_progress (win);
 917                                         if (dimmed)
 918                                                 modest_dimming_rule_set_notification (rule, "");
 919                                 }
 920
 921                         } else {
 922                                 return TRUE;
 923                         }
 924                 }
 925
 926         /* msg view window dimming rules */
 927         } else {
 928                 /* Check dimmed rule */
 929                 if (MODEST_IS_MSG_VIEW_WINDOW (win))
 930                         dimmed = _msg_download_in_progress (win);
 931                 if (dimmed)
 932                         modest_dimming_rule_set_notification (rule, "");
 933         }
 934
 935         return dimmed;
 936 }
 937
 938 gboolean
 939 modest_ui_dimming_rules_on_fetch_images (ModestWindow *win, gpointer user_data)
 940 {
 941         gboolean dimmed = FALSE;
 942
 943         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW (win), FALSE);
 944
 945         dimmed = !modest_msg_view_window_has_blocked_external_images (MODEST_MSG_VIEW_WINDOW (win));
 946
 947         return dimmed;
 948 }
 949
 950
 951 gboolean
 952 modest_ui_dimming_rules_on_mark_as_read_msg_in_view (ModestWindow *win, gpointer user_data)
 953 {
 954         ModestDimmingRule *rule = NULL;
 955         TnyHeader *header;
 956         TnyHeaderFlags flags;
 957         gboolean dimmed = FALSE;
 958
 959
 960         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 961         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 962         rule = MODEST_DIMMING_RULE (user_data);
 963
 964         header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW (win));
 965         if (!header) {
 966                 dimmed = TRUE;
 967         }
 968
 969         /* If the viewer is showing a message sent as attachment */
 970         if (!dimmed)
 971                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
 972
 973         if (!dimmed) {
 974                 flags = tny_header_get_flags (header);
 975                 if (flags & TNY_HEADER_FLAG_SEEN)
 976                         dimmed = TRUE;
 977         }
 978
 979         if (header)
 980                 g_object_unref (header);
 981         return dimmed;
 982 }
 983
 984
 985 gboolean
 986 modest_ui_dimming_rules_on_mark_as_unread_msg_in_view (ModestWindow *win, gpointer user_data)
 987 {
 988         ModestDimmingRule *rule = NULL;
 989         TnyHeader *header;
 990         TnyHeaderFlags flags;
 991         gboolean dimmed = FALSE;
 992
 993
 994         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 995         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 996         rule = MODEST_DIMMING_RULE (user_data);
 997
 998         header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW (win));
 999         if (!header) {
1000                 dimmed = TRUE;
1001         }
1002
1003         /* If the viewer is showing a message sent as attachment */
1004         if (!dimmed)
1005                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
1006
1007         if (!dimmed) {
1008                 flags = tny_header_get_flags (header);
1009                 if (!(flags & TNY_HEADER_FLAG_SEEN))
1010                         dimmed = TRUE;
1011         }
1012
1013         if (header)
1014                 g_object_unref (header);
1015         return dimmed;
1016 }
1017
1018 gboolean
1019 modest_ui_dimming_rules_on_mark_as_read_msg (ModestWindow *win, gpointer user_data)
1020 {
1021         ModestDimmingRule *rule = NULL;
1022         TnyHeaderFlags flags;
1023         const DimmedState *state = NULL;
1024         gboolean dimmed = FALSE;
1025
1026         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1027         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1028         rule = MODEST_DIMMING_RULE (user_data);
1029         state = modest_window_get_dimming_state (win);
1030
1031         flags = TNY_HEADER_FLAG_SEEN;
1032
1033         /* Check dimmed rule */
1034         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
1035         if (!dimmed) {
1036                 dimmed = state->all_marked_as_seen;
1037                 if (dimmed)
1038                         modest_dimming_rule_set_notification (rule, "");
1039         }
1040
1041         return dimmed;
1042 }
1043
1044 gboolean
1045 modest_ui_dimming_rules_on_mark_as_unread_msg (ModestWindow *win, gpointer user_data)
1046 {
1047         ModestDimmingRule *rule = NULL;
1048         TnyHeaderFlags flags;
1049         const DimmedState *state = NULL;
1050         gboolean dimmed = FALSE;
1051
1052         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1053         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1054         rule = MODEST_DIMMING_RULE (user_data);
1055         state = modest_window_get_dimming_state (win);
1056
1057         flags = TNY_HEADER_FLAG_SEEN;
1058
1059         /* Check dimmed rule */
1060         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
1061         if (!dimmed) {
1062                 dimmed = !state->any_marked_as_seen;
1063                 if (dimmed)
1064                         modest_dimming_rule_set_notification (rule, "");
1065         }
1066
1067         return dimmed;
1068 }
1069
1070 gboolean
1071 modest_ui_dimming_rules_on_move_to (ModestWindow *win, gpointer user_data)
1072 {
1073         ModestDimmingRule *rule = NULL;
1074         gboolean dimmed = FALSE;
1075
1076         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1077         rule = MODEST_DIMMING_RULE (user_data);
1078
1079         if (MODEST_IS_MAIN_WINDOW (win))
1080                 dimmed = modest_ui_dimming_rules_on_main_window_move_to (win, user_data);
1081 #ifdef MODEST_TOOLKIT_HILDON2
1082         else if (MODEST_IS_HEADER_WINDOW (win))
1083                 dimmed = modest_ui_dimming_rules_on_header_window_move_to (win, user_data);
1084         else if (MODEST_IS_FOLDER_WINDOW (win))
1085                 dimmed = modest_ui_dimming_rules_on_folder_window_move_to (win, user_data);
1086 #endif
1087         else if (MODEST_IS_MSG_VIEW_WINDOW (win))
1088                  dimmed = modest_ui_dimming_rules_on_view_window_move_to (win, user_data);
1089
1090         return dimmed;
1091 }
1092
1093
1094 gboolean
1095 modest_ui_dimming_rules_on_main_window_move_to (ModestWindow *win, gpointer user_data)
1096 {
1097         GtkWidget *folder_view = NULL;
1098         ModestDimmingRule *rule = NULL;
1099         const DimmedState *state = NULL;
1100         gboolean dimmed = FALSE;
1101
1102         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
1103         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1104         rule = MODEST_DIMMING_RULE (user_data);
1105         state = modest_window_get_dimming_state (win);
1106
1107         /* Get the folder view */
1108         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1109                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1110
1111
1112         /* Check diming rules for folders transfer  */
1113         if (folder_view && gtk_widget_is_focus (folder_view)) {
1114                 TnyFolderType types[5];
1115
1116                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
1117                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
1118                 types[2] = TNY_FOLDER_TYPE_SENT;
1119                 types[3] = TNY_FOLDER_TYPE_ROOT;
1120                 types[4] = TNY_FOLDER_TYPE_INBOX;
1121
1122                 /* Apply folder rules */
1123                 dimmed = _selected_folder_not_moveable (MODEST_MAIN_WINDOW(win));
1124                 if (dimmed)
1125                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1126                 if (!dimmed) {
1127                         dimmed = _selected_folder_is_any_of_type (win, types, 5);
1128                         if (dimmed)
1129                                 modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1130                 }
1131         }
1132
1133         /* Check diming rules for messages transfer  */
1134         if (!dimmed) {
1135                 dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
1136                 if (dimmed) {
1137                         gchar *message = g_strdup_printf(_("emev_nc_unabletomove_items"),
1138                                                          state->already_opened_msg);
1139                         modest_dimming_rule_set_notification (rule, message);
1140                         g_free(message);
1141                 }
1142         }
1143         if (!dimmed) {
1144                 if (!(folder_view && gtk_widget_is_focus (folder_view)))
1145                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
1146
1147         }
1148         if (!dimmed) {
1149                 dimmed = _selected_msg_sent_in_progress (win);
1150                 if (dimmed)
1151                         modest_dimming_rule_set_notification (rule, _("sfil_ib_unable_to_move_selected_items"));
1152         }
1153
1154         return dimmed;
1155 }
1156
1157 gboolean
1158 modest_ui_dimming_rules_on_view_window_move_to (ModestWindow *win, gpointer user_data)
1159 {
1160         ModestDimmingRule *rule = NULL;
1161         gboolean dimmed = FALSE;
1162
1163         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1164         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1165         rule = MODEST_DIMMING_RULE (user_data);
1166
1167         /* This could happen if we load the msg view window with a
1168            preview before loading the full message */
1169         TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
1170         if (!msg) {
1171                 return TRUE;
1172         } else {
1173                 g_object_unref (msg);
1174         }
1175
1176         /* Check dimmed rule */
1177
1178         dimmed = _transfer_mode_enabled (win);
1179         if (dimmed)
1180                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1181         if (!dimmed) {
1182                 dimmed = modest_window_get_dimming_state (win)->any_marked_as_deleted;
1183                 if (dimmed) {
1184                         gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
1185                         modest_dimming_rule_set_notification (rule, msg);
1186                         g_free (msg);
1187                 }
1188         }
1189
1190         if (!dimmed) {
1191                 dimmed = _selected_msg_sent_in_progress (win);
1192                 if (dimmed)
1193                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_item"));
1194         }
1195
1196         /* This could happen if we're viewing a message of the outbox
1197            that has been already sent */
1198         if (!dimmed)
1199                 dimmed = _message_already_sent (MODEST_MSG_VIEW_WINDOW(win));
1200
1201         if (!dimmed) {
1202                 if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1203                         /* The move_to button should be dimmed when viewing an attachment,
1204                          * but should be enabled when viewing a message from the list,
1205                          * or when viewing a search result.
1206                          */
1207                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
1208                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
1209                         }
1210                 }
1211
1212                 if (dimmed)
1213                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_item"));
1214         }
1215
1216         return dimmed;
1217 }
1218
1219 gboolean
1220 modest_ui_dimming_rules_on_find_in_msg (ModestWindow *win, gpointer user_data)
1221 {
1222         ModestDimmingRule *rule = NULL;
1223         gboolean dimmed = FALSE;
1224
1225         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1226         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1227         rule = MODEST_DIMMING_RULE (user_data);
1228
1229         /* This could happen if we load the msg view window with a
1230            preview before loading the full message */
1231         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1232                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
1233                 if (!msg) {
1234                         return TRUE;
1235                 } else {
1236                         g_object_unref (msg);
1237                 }
1238         }
1239
1240         /* Check dimmed rule */
1241         dimmed = _transfer_mode_enabled (win);
1242         if (dimmed)
1243                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1244
1245         return dimmed;
1246 }
1247
1248 gboolean
1249 modest_ui_dimming_rules_on_paste (ModestWindow *win, gpointer user_data)
1250 {
1251         ModestDimmingRule *rule = NULL;
1252         TnyFolderType types[3];
1253         gboolean dimmed = FALSE;
1254
1255         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1256         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1257         rule = MODEST_DIMMING_RULE (user_data);
1258
1259         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1260         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1261         types[2] = TNY_FOLDER_TYPE_SENT;
1262
1263         /* Check dimmed rule */
1264         dimmed = _clipboard_is_empty (win);
1265         if (dimmed)
1266                 modest_dimming_rule_set_notification (rule,
1267                                                       _CS("ecoc_ib_edwin_nothing_to_paste"));
1268         if (!dimmed) {
1269                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1270                 if (dimmed)
1271                         modest_dimming_rule_set_notification (rule,
1272                                                               _CS("ckct_ib_unable_to_paste_here"));
1273         }
1274         if (!dimmed) {
1275                 dimmed = !_folder_view_has_focus (win);
1276                 if (dimmed)
1277                         modest_dimming_rule_set_notification (rule,
1278                                         _CS("ckct_ib_unable_to_paste_here"));
1279         }
1280         if (!dimmed) {
1281                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win), TRUE);
1282                 if (dimmed)
1283                         modest_dimming_rule_set_notification (rule,
1284                                                               _CS("ckct_ib_unable_to_paste_here"));
1285         }
1286         if (!dimmed) {
1287                 dimmed = _selected_folder_is_same_as_source (win);
1288                 if (dimmed)
1289                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_copy_target_error"));
1290         }
1291         if (!dimmed) {
1292                 dimmed = _selected_folder_has_subfolder_with_same_name (win);
1293                 if (dimmed)
1294                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_copy_target_error"));
1295         }
1296
1297         return dimmed;
1298 }
1299
1300
1301 gboolean
1302 modest_ui_dimming_rules_on_select_all (ModestWindow *win, gpointer user_data)
1303 {
1304         ModestDimmingRule *rule = NULL;
1305         gboolean dimmed = FALSE;
1306         GtkWidget *focused = NULL;
1307
1308         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1309         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1310         rule = MODEST_DIMMING_RULE (user_data);
1311
1312         focused = gtk_window_get_focus (GTK_WINDOW (win));
1313
1314         /* Main window dimming rules */
1315         if (MODEST_IS_MAIN_WINDOW (win))
1316                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1317
1318         if (!dimmed && MODEST_IS_MAIN_WINDOW (win))
1319                 dimmed = _header_view_is_all_selected (MODEST_MAIN_WINDOW(win));
1320
1321         if (!dimmed && GTK_IS_ENTRY (focused)) {
1322                 const gchar *current_text;
1323                 current_text = gtk_entry_get_text (GTK_ENTRY (focused));
1324                 dimmed = ((current_text == NULL) || (current_text[0] == '\0'));
1325         }
1326
1327         if (!dimmed && GTK_IS_TEXT_VIEW (focused)) {
1328                 GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
1329                 dimmed = (gtk_text_buffer_get_char_count (buffer) < 1);
1330         }
1331
1332         if (dimmed && MODEST_IS_ATTACHMENTS_VIEW (focused))
1333                 dimmed = FALSE;
1334         return dimmed;
1335 }
1336
1337 gboolean
1338 modest_ui_dimming_rules_on_view_attachments (ModestWindow *win, gpointer user_data)
1339 {
1340         ModestDimmingRule *rule = NULL;
1341         gboolean dimmed = FALSE;
1342
1343         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1344         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1345         rule = MODEST_DIMMING_RULE (user_data);
1346
1347         /* Check dimmed rule */
1348         dimmed = _invalid_attach_selected (win, TRUE, TRUE, FALSE, rule);
1349
1350         if (!dimmed) {
1351                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1352                 if (dimmed) {
1353                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1354                 }
1355         }
1356
1357         return dimmed;
1358 }
1359
1360 #ifdef MODEST_TOOLKIT_HILDON2
1361 static gboolean
1362 _not_valid_attachments (ModestWindow *win, gboolean save_not_remove)
1363 {
1364         gint n_attachments;
1365         TnyList *attachments;
1366         gboolean result = FALSE;
1367
1368         /* Get atachments */
1369         attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1370         n_attachments = tny_list_get_length (attachments);
1371
1372         /* Check unique */
1373         if (!result) {
1374                 result = n_attachments < 1;
1375         }
1376
1377         /* Check attached type (view operation not required) */
1378         if (!result)  {
1379                 gint n_valid = 0;
1380
1381                 TnyIterator *iter;
1382                 iter = tny_list_create_iterator (attachments);
1383                 while (!tny_iterator_is_done (iter)) {
1384                         gboolean is_valid = TRUE;
1385                         TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
1386                         TnyList *nested_list = tny_simple_list_new ();
1387                         tny_mime_part_get_parts (mime_part, nested_list);
1388
1389                         if (tny_mime_part_is_purged (mime_part)) {
1390                                 is_valid = FALSE;
1391                         }
1392
1393                         if (is_valid && modest_tny_mime_part_is_msg (mime_part)) {
1394                                 TnyMsg *window_msg;
1395                                 window_msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
1396                                 if (window_msg) {
1397                                         if (save_not_remove && (TnyMimePart *) window_msg != mime_part) {
1398                                                 is_valid = FALSE;
1399                                         }
1400                                         g_object_unref (window_msg);
1401                                 }
1402                                 if (is_valid && save_not_remove && tny_list_get_length (nested_list) > 0) {
1403                                         is_valid = FALSE;
1404                                 }
1405                         }
1406                         g_object_unref (nested_list);
1407                         g_object_unref (mime_part);
1408                         tny_iterator_next (iter);
1409
1410                         if (is_valid)
1411                                 n_valid++;
1412                 }
1413                 g_object_unref (iter);
1414                 result = (n_valid == 0);
1415         }
1416         g_object_unref (attachments);
1417         return result;
1418
1419 }
1420 #endif
1421
1422 gboolean
1423 modest_ui_dimming_rules_on_save_attachments (ModestWindow *win, gpointer user_data)
1424 {
1425         ModestDimmingRule *rule = NULL;
1426         gboolean dimmed = FALSE;
1427
1428         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1429         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1430         rule = MODEST_DIMMING_RULE (user_data);
1431
1432         /* Check dimmed rule */
1433
1434 #ifdef MODEST_TOOLKIT_HILDON2
1435         dimmed = _not_valid_attachments (win, TRUE);
1436 #else
1437         dimmed = _invalid_attach_selected (win, FALSE, FALSE, FALSE, rule);
1438
1439         if (!dimmed) {
1440                 dimmed = _purged_attach_selected (win, TRUE, NULL);
1441                 if (dimmed) {
1442                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1443                 }
1444         }
1445 #endif
1446         return dimmed;
1447 }
1448
1449 gboolean
1450 modest_ui_dimming_rules_on_remove_attachments (ModestWindow *win, gpointer user_data)
1451 {
1452         ModestDimmingRule *rule = NULL;
1453         const DimmedState *state = NULL;
1454         gboolean dimmed = FALSE;
1455
1456         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1457         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1458         rule = MODEST_DIMMING_RULE (user_data);
1459         state = modest_window_get_dimming_state (win);
1460
1461         /* Check in main window if there's only one message selected */
1462         if (MODEST_IS_MAIN_WINDOW (win)) {
1463                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW (win), TRUE, rule);
1464         }
1465
1466         /* Check in view window if there's any attachment selected */
1467         if (!dimmed && MODEST_IS_MSG_VIEW_WINDOW (win)) {
1468                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, TRUE, NULL);
1469                 if (dimmed)
1470                         modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1471         }
1472
1473         if (!dimmed) {
1474
1475                 dimmed = _selected_msg_sent_in_progress (win);
1476                 if (dimmed) {
1477                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1478                 }
1479         }
1480
1481         /* cannot purge in editable drafts nor pop folders */
1482         if (!dimmed) {
1483                 dimmed = _invalid_folder_for_purge (win, rule);
1484                 if (dimmed)
1485                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1486         }
1487
1488         /* Check if the selected message in main window has attachments */
1489         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1490                 dimmed = !(state->any_has_attachments);
1491                 if (dimmed)
1492                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1493         }
1494
1495         /* Check if all attachments are already purged */
1496         if (!dimmed) {
1497                 dimmed = _purged_attach_selected (win, TRUE, rule);
1498         }
1499
1500         /* Check if the message is already downloaded */
1501         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1502                 dimmed = !_msg_download_completed (MODEST_MAIN_WINDOW (win));
1503                 if (dimmed)
1504                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1505         }
1506
1507         return dimmed;
1508 }
1509
1510 gboolean
1511 modest_ui_dimming_rules_on_undo (ModestWindow *win, gpointer user_data)
1512 {
1513         ModestDimmingRule *rule = NULL;
1514         gboolean dimmed = FALSE;
1515
1516         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1517         rule = MODEST_DIMMING_RULE (user_data);
1518
1519         /* Check dimmed rule */
1520         if (MODEST_IS_MAIN_WINDOW (win)) {
1521                 dimmed = _clipboard_is_empty (win);
1522                 if (dimmed)
1523                         modest_dimming_rule_set_notification (rule, "");
1524         }
1525
1526         if (!dimmed && MODEST_IS_MSG_EDIT_WINDOW (win)) {
1527                 dimmed = !modest_msg_edit_window_can_undo (MODEST_MSG_EDIT_WINDOW (win));
1528         }
1529
1530         return dimmed;
1531 }
1532
1533 gboolean
1534 modest_ui_dimming_rules_on_redo (ModestWindow *win, gpointer user_data)
1535 {
1536         ModestDimmingRule *rule = NULL;
1537         gboolean dimmed = FALSE;
1538
1539         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1540         rule = MODEST_DIMMING_RULE (user_data);
1541
1542         /* Check dimmed rule */
1543         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
1544                 dimmed = !modest_msg_edit_window_can_redo (MODEST_MSG_EDIT_WINDOW (win));
1545         }
1546
1547         return dimmed;
1548 }
1549
1550 gboolean
1551 modest_ui_dimming_rules_on_cut (ModestWindow *win, gpointer user_data)
1552 {
1553         ModestDimmingRule *rule = NULL;
1554         const DimmedState *state = NULL;
1555         gboolean dimmed = FALSE;
1556
1557         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1558         rule = MODEST_DIMMING_RULE (user_data);
1559         state = modest_window_get_dimming_state (win);
1560
1561         /* Check common dimming rules */
1562         dimmed = _invalid_clipboard_selected (win, rule);
1563
1564         /* Check window specific dimming rules */
1565         if (MODEST_IS_MAIN_WINDOW (win)) {
1566                 /* Get focused widget */
1567                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1568
1569                 if (MODEST_IS_HEADER_VIEW (focused)) {
1570                         if (!dimmed) {
1571                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1572                                 if (dimmed)
1573                                         modest_dimming_rule_set_notification (rule, "");
1574                         }
1575                         if (!dimmed) {
1576                                 dimmed = _selected_msg_sent_in_progress (win);
1577                                 if (dimmed)
1578                                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1579                         }
1580                         if (!dimmed) {
1581                                 dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
1582                                 if(dimmed)
1583                                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1584                         }
1585                 }
1586                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1587                         TnyFolderType types[3];
1588
1589                         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1590                         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1591                         types[2] = TNY_FOLDER_TYPE_SENT;
1592
1593                         /* Apply folder rules */
1594                         if (!dimmed) {
1595                                 dimmed = _selected_folder_not_deletable (MODEST_MAIN_WINDOW(win));
1596                                 if (dimmed)
1597                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1598                         }
1599                         if (!dimmed) {
1600                                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
1601                                 if (dimmed)
1602                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1603                         }
1604                         if (!dimmed) {
1605                                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1606                                 if (dimmed)
1607                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1608                         }
1609                 }
1610         }
1611
1612         return dimmed;
1613 }
1614
1615 gboolean
1616 modest_ui_dimming_rules_on_copy (ModestWindow *win, gpointer user_data)
1617 {
1618         ModestDimmingRule *rule = NULL;
1619         const DimmedState *state = NULL;
1620         gboolean dimmed = FALSE;
1621
1622         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1623         rule = MODEST_DIMMING_RULE (user_data);
1624         state = modest_window_get_dimming_state (win);
1625
1626         /* Check common dimming rules */
1627         dimmed = _invalid_clipboard_selected (win, rule);
1628
1629         /* Check window specific dimming rules */
1630         if (MODEST_IS_MAIN_WINDOW (win)) {
1631                 /* Get focused widget */
1632                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1633
1634                 if (MODEST_IS_HEADER_VIEW (focused)) {
1635                         if (!dimmed) {
1636                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1637                                 if (dimmed)
1638                                         modest_dimming_rule_set_notification (rule, "");
1639                         }
1640                         if (!dimmed) {
1641                                 dimmed = _selected_msg_sent_in_progress (win);
1642                                 if (dimmed)
1643                                         modest_dimming_rule_set_notification (rule, _(""));
1644                         }
1645                         if (!dimmed) {
1646                                 dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
1647                                 if(dimmed)
1648                                         modest_dimming_rule_set_notification (rule, _(""));
1649                         }
1650                 }
1651                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1652                         TnyFolderType types[3];
1653
1654                         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1655                         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1656                         types[2] = TNY_FOLDER_TYPE_SENT;
1657
1658                         if (!dimmed) {
1659                                 dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
1660                                 if (dimmed)
1661                                         modest_dimming_rule_set_notification (rule, _(""));
1662                         }
1663                         if (!dimmed) {
1664                                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1665                                 if (dimmed)
1666                                         modest_dimming_rule_set_notification (rule, _(""));
1667                         }
1668                 }
1669         }
1670
1671         return dimmed;
1672 }
1673
1674 gboolean
1675 modest_ui_dimming_rules_on_set_style (ModestWindow *win, gpointer user_data)
1676 {
1677         ModestDimmingRule *rule = NULL;
1678         const DimmedState *state = NULL;
1679         gboolean dimmed = FALSE;
1680
1681         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1682         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1683         rule = MODEST_DIMMING_RULE (user_data);
1684         state = modest_window_get_dimming_state (win);
1685
1686
1687         /* Check common dimming rules */
1688         ModestMsgEditFormat format;
1689         format = modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
1690
1691         dimmed = (format != MODEST_MSG_EDIT_FORMAT_HTML);
1692         if (dimmed)
1693                 modest_dimming_rule_set_notification (rule, _("mcen_ib_item_unavailable_plaintext"));
1694
1695         if (!dimmed) {
1696                 GtkWidget *body;
1697                 body = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1698                                                                 MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1699
1700                 dimmed = ((body == NULL)||(!gtk_widget_is_focus (body)));
1701                 if (dimmed)
1702                         modest_dimming_rule_set_notification (rule, _("mcen_ib_move_cursor_to_message"));
1703         }
1704
1705
1706         return dimmed;
1707 }
1708
1709 gboolean
1710 modest_ui_dimming_rules_on_zoom (ModestWindow *win, gpointer user_data)
1711 {
1712         ModestDimmingRule *rule = NULL;
1713         const DimmedState *state = NULL;
1714         gboolean dimmed = FALSE;
1715
1716         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1717         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1718         rule = MODEST_DIMMING_RULE (user_data);
1719         state = modest_window_get_dimming_state (win);
1720
1721         GtkWidget *body;
1722         body = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1723                                                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1724
1725         dimmed = ((body == NULL)||(!gtk_widget_is_focus (body)));
1726         if (dimmed)
1727                 modest_dimming_rule_set_notification (rule, _("mcen_ib_move_cursor_to_message"));
1728
1729         return dimmed;
1730 }
1731
1732 gboolean
1733 modest_ui_dimming_rules_on_editor_paste (ModestWindow *win, gpointer user_data)
1734 {
1735         ModestDimmingRule *rule = NULL;
1736         const DimmedState *state = NULL;
1737         gboolean dimmed = FALSE;
1738         GtkWidget *focused = NULL;
1739
1740         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1741         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1742         rule = MODEST_DIMMING_RULE (user_data);
1743         state = modest_window_get_dimming_state (win);
1744
1745         focused = gtk_window_get_focus (GTK_WINDOW (win));
1746
1747         dimmed = MODEST_IS_ATTACHMENTS_VIEW (focused);
1748
1749         if (!dimmed) {
1750                 dimmed = GTK_IS_TOGGLE_BUTTON (focused);
1751         }
1752
1753         if (!dimmed) {
1754                 ModestEmailClipboard *e_clipboard = modest_runtime_get_email_clipboard ();
1755                 const gchar *clipboard_text = modest_msg_edit_window_get_clipboard_text (MODEST_MSG_EDIT_WINDOW (win));
1756
1757                 dimmed = modest_email_clipboard_cleared (e_clipboard) &&
1758                   ((clipboard_text == NULL) || (clipboard_text[0] == '\0'));
1759         }
1760
1761         return dimmed;
1762 }
1763
1764 gboolean
1765 modest_ui_dimming_rules_on_editor_remove_attachment (ModestWindow *win, gpointer user_data)
1766 {
1767         ModestDimmingRule *rule = NULL;
1768         const DimmedState *state = NULL;
1769         gboolean dimmed = FALSE;
1770         TnyList *selected_attachments = NULL;
1771         gint n_att_selected = 0;
1772         GtkWidget *attachments_view;
1773
1774         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1775         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1776         rule = MODEST_DIMMING_RULE (user_data);
1777         state = modest_window_get_dimming_state (win);
1778
1779         attachments_view = modest_msg_edit_window_get_child_widget (
1780                                                                     MODEST_MSG_EDIT_WINDOW (win),
1781                                                                     MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_ATTACHMENTS);
1782
1783 #ifdef MODEST_TOOLKIT_HILDON2
1784         selected_attachments = modest_attachments_view_get_attachments (
1785                                                                       MODEST_ATTACHMENTS_VIEW (attachments_view));
1786 #else
1787         selected_attachments = modest_attachments_view_get_selection (
1788                                                                       MODEST_ATTACHMENTS_VIEW (attachments_view));
1789 #endif
1790         n_att_selected = tny_list_get_length (selected_attachments);
1791         g_object_unref (selected_attachments);
1792
1793         dimmed = (n_att_selected < 1);
1794
1795         return dimmed;
1796 }
1797
1798 gboolean
1799 modest_ui_dimming_rules_on_send (ModestWindow *win, gpointer user_data)
1800 {
1801         ModestDimmingRule *rule = NULL;
1802         const DimmedState *state = NULL;
1803         gboolean dimmed = FALSE;
1804         GtkWidget *subject_field, *body_field;
1805         const gchar *subject = NULL;
1806
1807         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1808         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1809         rule = MODEST_DIMMING_RULE (user_data);
1810         state = modest_window_get_dimming_state (win);
1811
1812         body_field = modest_msg_edit_window_get_child_widget (
1813                                                               MODEST_MSG_EDIT_WINDOW (win),
1814                                                               MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1815         subject_field = modest_msg_edit_window_get_child_widget (
1816                                                                  MODEST_MSG_EDIT_WINDOW (win),
1817                                                                  MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_SUBJECT);
1818         subject = gtk_entry_get_text (GTK_ENTRY (subject_field));
1819
1820         dimmed = (subject == NULL || subject[0] == '\0');
1821         if (dimmed)
1822                 modest_dimming_rule_set_notification (rule, _("mcen_ib_subject_not_modified"));
1823
1824         if (!dimmed) {
1825                 GtkWidget *to_field, *cc_field, *bcc_field;
1826                 GtkTextBuffer * to_buffer, *cc_buffer, *bcc_buffer;
1827                 cc_field = modest_msg_edit_window_get_child_widget (
1828                         MODEST_MSG_EDIT_WINDOW (win),
1829                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_CC);
1830                 to_field = modest_msg_edit_window_get_child_widget (
1831                         MODEST_MSG_EDIT_WINDOW (win),
1832                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_TO);
1833                 bcc_field = modest_msg_edit_window_get_child_widget (
1834                         MODEST_MSG_EDIT_WINDOW (win),
1835                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BCC);
1836                 to_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (to_field));
1837                 cc_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (cc_field));
1838                 bcc_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (bcc_field));
1839
1840                 dimmed = ((gtk_text_buffer_get_char_count (to_buffer) +
1841                            gtk_text_buffer_get_char_count (cc_buffer) +
1842                            gtk_text_buffer_get_char_count (bcc_buffer)) == 0);
1843                 if (dimmed)
1844                         modest_dimming_rule_set_notification (rule, _("mcen_ib_add_recipients_first"));
1845         }
1846
1847         return dimmed;
1848 }
1849
1850 gboolean
1851 modest_ui_dimming_rules_on_view_previous (ModestWindow *win, gpointer user_data)
1852 {
1853         ModestDimmingRule *rule = NULL;
1854         gboolean dimmed = FALSE;
1855
1856         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1857         rule = MODEST_DIMMING_RULE (user_data);
1858
1859         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1860
1861         /* Check dimmed rule */
1862         dimmed = _transfer_mode_enabled (win);
1863         if (dimmed)
1864                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1865
1866         if (!dimmed) {
1867                 dimmed = modest_msg_view_window_first_message_selected (
1868                                 MODEST_MSG_VIEW_WINDOW(win));
1869                 modest_dimming_rule_set_notification (rule, NULL);
1870         }
1871
1872         return dimmed;
1873 }
1874
1875 gboolean
1876 modest_ui_dimming_rules_on_view_next (ModestWindow *win, gpointer user_data)
1877 {
1878         ModestDimmingRule *rule = NULL;
1879         gboolean dimmed = FALSE;
1880
1881         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1882         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1883         rule = MODEST_DIMMING_RULE (user_data);
1884
1885         /* Check dimmed rule */
1886         dimmed = _transfer_mode_enabled (win);
1887         if (dimmed)
1888                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1889
1890         if (!dimmed) {
1891                 dimmed = modest_msg_view_window_last_message_selected (MODEST_MSG_VIEW_WINDOW (win));
1892                 modest_dimming_rule_set_notification (rule, NULL);
1893         }
1894
1895         return dimmed;
1896 }
1897
1898
1899 gboolean
1900 modest_ui_dimming_rules_on_tools_smtp_servers (ModestWindow *win, gpointer user_data)
1901 {
1902         gboolean dimmed;
1903         ModestAccountMgr *mgr;
1904
1905         mgr = modest_runtime_get_account_mgr();
1906         dimmed = !modest_account_mgr_has_accounts(mgr, TRUE);
1907
1908         /* Dimm it if we only have metaaccounts */
1909         if (!dimmed) {
1910                 ModestProtocolRegistry *reg = modest_runtime_get_protocol_registry ();
1911                 GSList *account_names = modest_account_mgr_account_names (mgr, TRUE);
1912
1913                 if (account_names) {
1914                         ModestProtocolType store_protocol;
1915                         gboolean found = FALSE;
1916                         GSList *iter = account_names;
1917                         const gchar *tag = MODEST_PROTOCOL_REGISTRY_MULTI_MAILBOX_PROVIDER_PROTOCOLS;
1918
1919                         while (iter && !found) {
1920                                 gchar* account_name;
1921
1922                                 account_name = (gchar *) iter->data;
1923                                 store_protocol = modest_account_mgr_get_store_protocol (mgr, account_name);
1924
1925                                 if (!modest_protocol_registry_protocol_type_has_tag (reg, store_protocol, tag))
1926                                         found = TRUE;
1927                                 else
1928                                         iter = g_slist_next (iter);
1929                         }
1930                         modest_account_mgr_free_account_names (account_names);
1931                         dimmed = !found;
1932                 }
1933         }
1934
1935         return dimmed;
1936 }
1937
1938 gboolean
1939 modest_ui_dimming_rules_on_cancel_sending (ModestWindow *win, gpointer user_data)
1940 {
1941         ModestDimmingRule *rule = NULL;
1942         TnyFolderType types[1];
1943         const DimmedState *state = NULL;
1944         gboolean dimmed = FALSE;
1945
1946         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1947         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1948         rule = MODEST_DIMMING_RULE (user_data);
1949         state = modest_window_get_dimming_state (win);
1950
1951         types[0] = TNY_FOLDER_TYPE_OUTBOX;
1952
1953         /* Check dimmed rules */
1954         dimmed = !_selected_folder_is_any_of_type (win, types, 1);
1955         if (dimmed)
1956                 modest_dimming_rule_set_notification (rule, "");
1957         if (!dimmed) {
1958                 dimmed = !state->sent_in_progress;
1959                 if (dimmed)
1960                         modest_dimming_rule_set_notification (rule, "");
1961         }
1962
1963         return dimmed;
1964 }
1965
1966 gboolean
1967 modest_ui_dimming_rules_on_cancel_sending_all (ModestWindow *win, gpointer user_data)
1968 {
1969         /* We dim if no msg send is in progress (and then cancelling send all has no
1970          * effect */
1971         return !_msgs_send_in_progress ();
1972 }
1973
1974 gboolean
1975 modest_ui_dimming_rules_on_send_receive (ModestWindow *win, gpointer user_data)
1976 {
1977         ModestDimmingRule *rule = NULL;
1978         gboolean dimmed = FALSE;
1979         ModestAccountMgr *mgr;
1980         const gchar* account_name;
1981
1982         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1983         rule = MODEST_DIMMING_RULE (user_data);
1984         mgr = modest_runtime_get_account_mgr();
1985
1986         /* Check dimmed rule */
1987         account_name = modest_window_get_active_account (win);
1988
1989         if (account_name)
1990                 dimmed = modest_account_mgr_account_is_busy (mgr, account_name);
1991         else
1992                 dimmed = TRUE;
1993
1994         if (dimmed)
1995                 modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
1996
1997         return dimmed;
1998 }
1999
2000 gboolean
2001 modest_ui_dimming_rules_on_send_receive_all (ModestWindow *win, gpointer user_data)
2002 {
2003         ModestDimmingRule *rule = NULL;
2004         gboolean dimmed = FALSE;
2005
2006         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2007         rule = MODEST_DIMMING_RULE (user_data);
2008
2009         /* Check dimmed rule */
2010         GSList *account_names = modest_account_mgr_account_names (modest_runtime_get_account_mgr (), TRUE);
2011         if (g_slist_length (account_names) < 1)
2012                 dimmed = TRUE;
2013         if (dimmed)
2014                 modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
2015
2016         modest_account_mgr_free_account_names (account_names);
2017
2018         if (!dimmed) {
2019                 dimmed = _send_receive_in_progress (win);
2020         }
2021
2022         return dimmed;
2023 }
2024
2025 #ifdef MODEST_TOOLKIT_HILDON2
2026 gboolean
2027 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
2028 {
2029         TnyMsg *msg;
2030         GSList *recipients, *node;
2031         gboolean has_recipients_to_add;
2032
2033         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2034         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW (win), FALSE);
2035
2036         msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2037
2038         /* Message is loaded asynchronously, so this could happen */
2039         if (!msg) {
2040 #ifdef MODEST_TOOLKIT_HILDON2
2041                 TnyHeader *header;
2042
2043                 header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW (win));
2044                 if (!header)
2045                         return TRUE;
2046
2047                 recipients = modest_tny_msg_header_get_all_recipients_list (header);
2048                 g_object_unref (header);
2049 #else
2050                 return TRUE;
2051 #endif
2052         } else {
2053                 recipients = modest_tny_msg_get_all_recipients_list (msg);
2054                 g_object_unref (msg);
2055         }
2056
2057         has_recipients_to_add = FALSE;
2058         for (node = recipients; node != NULL; node = g_slist_next (node)) {
2059                 if (!modest_address_book_has_address ((const gchar *) node->data)) {
2060                         has_recipients_to_add = TRUE;
2061                         break;
2062                 }
2063         }
2064
2065         g_slist_foreach (recipients, (GFunc) g_free, NULL);
2066         g_slist_free (recipients);
2067
2068         return !has_recipients_to_add;
2069 }
2070 #else
2071 gboolean
2072 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
2073 {
2074         ModestDimmingRule *rule = NULL;
2075         gboolean dimmed = FALSE;
2076         GtkWidget *focused = NULL;
2077
2078         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2079         rule = MODEST_DIMMING_RULE (user_data);
2080         focused = gtk_window_get_focus (GTK_WINDOW (win));
2081
2082         dimmed = !focused;
2083
2084         if (!dimmed) {
2085                 gchar *selection = NULL;
2086                 if (GTK_IS_TEXT_VIEW (focused)) {
2087                         GtkTextIter start, end;
2088                         GtkTextBuffer *buffer = NULL;
2089                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2090                         if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end)) {
2091                                 selection = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
2092                         }
2093                 } else if (GTK_IS_LABEL (focused)) {
2094                         selection = modest_text_utils_label_get_selection (GTK_LABEL (focused));
2095                 } else {
2096                         gboolean do_check = TRUE;
2097                         GtkClipboard *clipboard;
2098                         if (GTK_IS_HTML (focused)) {
2099                                 const gchar *sel;
2100                                 int len = -1;
2101                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
2102                                 do_check = !((sel == NULL) || (sel[0] == '\0'));
2103                         } else if (MODEST_IS_ATTACHMENTS_VIEW (focused)) {
2104                                 do_check = FALSE;
2105                         }
2106                         if (do_check) {
2107                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
2108                                 selection = gtk_clipboard_wait_for_text (clipboard);
2109                         } else {
2110                                 selection = NULL;
2111                         }
2112                 }
2113                 dimmed = !((selection != NULL) && (modest_text_utils_validate_recipient (selection, NULL)));
2114         }
2115
2116         return dimmed;
2117 }
2118 #endif
2119
2120 /* *********************** static utility functions ******************** */
2121
2122
2123 static gboolean
2124 _selected_folder_not_writeable (ModestMainWindow *win,
2125                                 gboolean for_paste)
2126 {
2127         GtkWidget *folder_view = NULL;
2128         TnyFolderStore *parent_folder = NULL;
2129         ModestEmailClipboard *clipboard = NULL;
2130         ModestTnyFolderRules rules;
2131         gboolean is_local_acc = FALSE;
2132         gboolean xfer_folders = FALSE;
2133         gboolean result = FALSE;
2134
2135         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2136
2137         /* Get folder view */
2138         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2139                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2140         /* If no folder view, always dimmed */
2141         if (!folder_view)
2142                 return TRUE;
2143
2144         /* Get selected folder as parent of new folder to create */
2145         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2146         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2147                 /* If it's the local account and its transfering folders, then do not dim */
2148                 if (TNY_IS_ACCOUNT (parent_folder)) {
2149                         is_local_acc = modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder));
2150                         if (for_paste) {
2151                                 clipboard = modest_runtime_get_email_clipboard ();
2152                                 xfer_folders = modest_email_clipboard_folder_copied (clipboard);
2153                         }
2154                 }
2155
2156                 if (for_paste)
2157                         result = !(is_local_acc && xfer_folders);
2158                 else
2159                         result = !is_local_acc;
2160                 goto frees;
2161         }
2162
2163         /* Check dimmed rule */
2164         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2165         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
2166
2167         /* free */
2168  frees:
2169         if (parent_folder != NULL)
2170                 g_object_unref (parent_folder);
2171
2172         return result;
2173 }
2174
2175 static gboolean
2176 _selected_folder_not_deletable (ModestMainWindow *win)
2177 {
2178         GtkWidget *folder_view = NULL;
2179         TnyFolderStore *parent_folder = NULL;
2180         ModestTnyFolderRules rules;
2181         gboolean result = FALSE;
2182
2183         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2184
2185         /* Get folder view */
2186         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2187                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2188         /* If no folder view, always dimmed */
2189         if (!folder_view)
2190                 return TRUE;
2191
2192         /* Get selected folder as parent of new folder to create */
2193         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2194         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2195                 result = TRUE;
2196                 goto frees;
2197         }
2198
2199         /* Check dimmed rule */
2200         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2201         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_DELETABLE;
2202
2203         /* free */
2204  frees:
2205         if (parent_folder != NULL)
2206                 g_object_unref (parent_folder);
2207
2208         return result;
2209 }
2210
2211 static gboolean
2212 _selected_folder_not_moveable (ModestMainWindow *win)
2213 {
2214         GtkWidget *folder_view = NULL;
2215         TnyFolderStore *parent_folder = NULL;
2216         ModestTnyFolderRules rules;
2217         gboolean result = FALSE;
2218
2219         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2220
2221         /* Get folder view */
2222         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2223                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2224         /* If no folder view, always dimmed */
2225         if (!folder_view)
2226                 return TRUE;
2227
2228         /* Get selected folder as parent of new folder to create */
2229         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2230         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2231                 result = TRUE;
2232                 goto frees;
2233         }
2234
2235         /* Check dimmed rule */
2236         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2237         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE;
2238
2239         /* free */
2240  frees:
2241         if (parent_folder != NULL)
2242                 g_object_unref (parent_folder);
2243
2244         return result;
2245 }
2246
2247 static gboolean
2248 _selected_folder_not_renameable (ModestMainWindow *win)
2249 {
2250         GtkWidget *folder_view = NULL;
2251         TnyFolderStore *parent_folder = NULL;
2252         ModestTnyFolderRules rules;
2253         gboolean result = FALSE;
2254
2255         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2256
2257         /* Get folder view */
2258         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2259                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2260         /* If no folder view, always dimmed */
2261         if (!folder_view)
2262                 return TRUE;
2263
2264         /* Get selected folder as parent of new folder to create */
2265         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2266         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2267                 result = TRUE;
2268                 goto frees;
2269         }
2270
2271         /* Check dimmed rule */
2272         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2273         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_RENAMEABLE;
2274
2275         /* free */
2276  frees:
2277         if (parent_folder != NULL)
2278                 g_object_unref (parent_folder);
2279
2280         return result;
2281 }
2282
2283 static gboolean
2284 _selected_folder_is_root_or_inbox (ModestMainWindow *win)
2285 {
2286         TnyFolderType types[2];
2287         gboolean result = FALSE;
2288
2289         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2290
2291         types[0] = TNY_FOLDER_TYPE_ROOT;
2292         types[1] = TNY_FOLDER_TYPE_INBOX;
2293
2294         /* Check folder type */
2295         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 2);
2296
2297         /* Check pop and MMC accounts */
2298         if (!result) {
2299                 result = _selected_folder_is_root (win);
2300         }
2301
2302         return result;
2303 }
2304
2305
2306 static gboolean
2307 _selected_folder_is_root (ModestMainWindow *win)
2308 {
2309         TnyFolderType types[1];
2310         gboolean result = FALSE;
2311
2312         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2313
2314         /* All accounts are root items: */
2315         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2316                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2317         if (folder_view) {
2318                 gboolean is_account = FALSE;
2319                 TnyFolderStore *folder_store =
2320                         modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2321                 if (folder_store) {
2322                         is_account = TNY_IS_ACCOUNT (folder_store);
2323
2324                         g_object_unref (folder_store);
2325                         folder_store = NULL;
2326                 }
2327
2328                 if (is_account)
2329                         return TRUE;
2330         }
2331
2332         /* Try something more precise: */
2333         types[0] = TNY_FOLDER_TYPE_ROOT;
2334
2335         /* Check folder type */
2336         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 1);
2337
2338         return result;
2339 }
2340
2341 static gboolean
2342 _header_view_is_all_selected (ModestMainWindow *win)
2343 {
2344         const DimmedState *state = NULL;
2345
2346         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2347
2348         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2349
2350         return state->all_selected;
2351 }
2352
2353 static gboolean
2354 _selected_folder_is_empty (ModestMainWindow *win)
2355 {
2356         GtkWidget *folder_view = NULL, *header_view = NULL;
2357         TnyFolderStore *folder = NULL;
2358         gboolean result = FALSE;
2359
2360         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2361
2362         /* Get folder view */
2363         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2364                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2365
2366         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2367                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
2368
2369         /* If no folder view, always dimmed */
2370         if (!folder_view || !header_view)
2371                 return TRUE;
2372
2373         /* Get selected folder as parent of new folder to create */
2374         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2375         if (!(folder && TNY_IS_FOLDER(folder))) {
2376                 if (folder)
2377                         g_object_unref (folder);
2378                 return TRUE;
2379         }
2380
2381         /* Check folder type */
2382         if (modest_header_view_is_empty (MODEST_HEADER_VIEW (header_view)) ||
2383             tny_folder_get_all_count (TNY_FOLDER (folder)) == 0)
2384                 result = TRUE;
2385
2386         /* free */
2387         g_object_unref (folder);
2388
2389         return result;
2390 }
2391
2392 static gboolean
2393 _folder_view_has_focus (ModestWindow *win)
2394 {
2395         GtkWidget *folder_view = NULL;
2396
2397         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2398
2399         /* Get folder view */
2400         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2401                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2402         if (!folder_view)
2403                 return FALSE;
2404
2405         if (gtk_widget_is_focus(folder_view))
2406                 return TRUE;
2407
2408         return FALSE;
2409 }
2410
2411 static gboolean
2412 _selected_folder_is_same_as_source (ModestWindow *win)
2413 {
2414         ModestEmailClipboard *clipboard = NULL;
2415         GtkWidget *folder_view = NULL;
2416         TnyFolderStore *folder = NULL;
2417         gboolean result = FALSE;
2418
2419         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2420
2421         /* Get folder view */
2422         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2423                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2424         if (!folder_view)
2425                 return FALSE;
2426
2427         /* Get selected folder as destination folder */
2428         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2429         if (!(folder && TNY_IS_FOLDER(folder))) {
2430                 result = FALSE;
2431                 goto frees;
2432         }
2433
2434         /* Check clipboard is cleared */
2435         clipboard = modest_runtime_get_email_clipboard ();
2436         if (modest_email_clipboard_cleared (clipboard)) {
2437                 result = FALSE;
2438                 goto frees;
2439         }
2440
2441         /* Check source folder */
2442         result = modest_email_clipboard_check_source_folder (clipboard, TNY_FOLDER (folder));
2443
2444         /* Free */
2445  frees:
2446         g_object_unref (folder);
2447
2448         return result;
2449 }
2450
2451 static gboolean
2452 _selected_folder_is_any_of_type (ModestWindow *win,
2453                                  TnyFolderType types[],
2454                                  guint ntypes)
2455 {
2456         GtkWidget *folder_view = NULL;
2457         TnyFolderStore *folder = NULL;
2458         TnyFolderType folder_type;
2459         guint i=0;
2460         gboolean result = FALSE;
2461
2462         /*Get current folder */
2463         if (MODEST_IS_MAIN_WINDOW(win)) {
2464
2465                 /* Get folder view */
2466                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2467                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2468                 /* If no folder view, always dimmed */
2469                 if (!folder_view)
2470                         return FALSE;
2471
2472                 /* Get selected folder as parent of new folder to create */
2473                 folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2474
2475                 if (!(folder && TNY_IS_FOLDER(folder))) {
2476                         if (folder)
2477                                 g_object_unref (folder);
2478                         return FALSE;
2479                 }
2480
2481                 /* Check folder type */
2482                 result = _folder_is_any_of_type (TNY_FOLDER(folder), types, ntypes);
2483         }
2484         else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2485                 folder_type = modest_msg_view_window_get_folder_type (MODEST_MSG_VIEW_WINDOW (win));
2486                 for (i=0; i < ntypes; i++) {
2487                         result = result || folder_type == types[i];
2488                 }
2489         }
2490
2491
2492         /* free */
2493         if (folder)
2494                 g_object_unref (folder);
2495
2496         return result;
2497 }
2498
2499 static gboolean
2500 _folder_is_any_of_type (TnyFolder *folder,
2501                         TnyFolderType types[],
2502                         guint ntypes)
2503 {
2504         TnyFolderType folder_type;
2505         gboolean result = FALSE;
2506         guint i;
2507
2508         g_return_val_if_fail (TNY_IS_FOLDER(folder), FALSE);
2509
2510         /* Get folder type */
2511         folder_type = modest_tny_folder_guess_folder_type (folder);
2512         if (folder_type == TNY_FOLDER_TYPE_INVALID)
2513                 g_warning ("%s: BUG: TNY_FOLDER_TYPE_INVALID", __FUNCTION__);
2514
2515         /* Check foler type */
2516         for (i=0; i < ntypes; i++) {
2517                 result = result || folder_type == types[i];
2518         }
2519
2520         return result;
2521 }
2522
2523 static gboolean
2524 _clipboard_is_empty (ModestWindow *win)
2525 {
2526         gboolean result = FALSE;
2527
2528         if (MODEST_IS_MAIN_WINDOW (win)) {
2529                 ModestEmailClipboard *clipboard = NULL;
2530                 clipboard = modest_runtime_get_email_clipboard ();
2531                 if (modest_email_clipboard_cleared (clipboard))
2532                  result = TRUE;
2533         }
2534
2535         return result;
2536 }
2537
2538 static gboolean
2539 _invalid_clipboard_selected (ModestWindow *win,
2540                              ModestDimmingRule *rule)
2541 {
2542         const DimmedState *state = NULL;
2543         gboolean result = FALSE;
2544         GtkWidget *focused = NULL;
2545
2546         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2547         state = modest_window_get_dimming_state (win);
2548         /* Get focuesed widget */
2549         focused = gtk_window_get_focus (GTK_WINDOW (win));
2550
2551         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
2552                 gboolean has_selection = FALSE;
2553                 if (GTK_IS_TEXT_VIEW (focused)) {
2554                         GtkTextBuffer *buffer = NULL;
2555                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2556                         has_selection = modest_text_utils_buffer_selection_is_valid (buffer);
2557                 } else if (GTK_IS_EDITABLE (focused)) {
2558                         has_selection = gtk_editable_get_selection_bounds (GTK_EDITABLE (focused), NULL, NULL);
2559                 }
2560                 result = !has_selection;
2561         } else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2562                 if (focused) {
2563                         MODEST_DEBUG_BLOCK (g_debug ("FOCUSED %s", g_type_name (G_TYPE_FROM_INSTANCE (focused))););
2564                         if (GTK_IS_LABEL (focused) &&
2565                             !gtk_label_get_selection_bounds (GTK_LABEL (focused), NULL, NULL)) {
2566                                 result = TRUE;
2567                         } else if (GTK_IS_TEXT_VIEW (focused)) {
2568                                 GtkTextBuffer *buffer;
2569                                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2570                                 result = !gtk_text_buffer_get_has_selection (buffer);
2571                         } else if (GTK_IS_HTML (focused)) {
2572                                 const gchar *sel;
2573                                 int len = -1;
2574                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
2575                                 result = ((sel == NULL) || (sel[0] == '\0'));
2576                         } else if (MODEST_IS_ATTACHMENTS_VIEW (focused)) {
2577                                 result = TRUE;
2578                         } else {
2579                                 GtkClipboard *clipboard;
2580                                 gchar *selection;
2581
2582                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
2583                                 /* Get clipboard selection*/
2584                                 selection = gtk_clipboard_wait_for_text (clipboard);
2585                                 /* Check dimming */
2586                                 result = (selection == NULL);
2587                                 g_free (selection);
2588                         }
2589                 } else {
2590                         result = TRUE;
2591                 }
2592
2593                 if (result)
2594                         modest_dimming_rule_set_notification (rule, "");
2595
2596         }
2597         else if (MODEST_IS_MAIN_WINDOW (win)) {
2598                 /* Check dimming */
2599                 result = state->n_selected == 0;
2600                 if (result)
2601                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2602         }
2603
2604         return result;
2605 }
2606
2607
2608 static gboolean
2609 _invalid_attach_selected (ModestWindow *win,
2610                           gboolean unique,
2611                           gboolean for_view,
2612                           gboolean for_remove,
2613                           ModestDimmingRule *rule)
2614 {
2615         TnyList *attachments;
2616         gint n_selected;
2617         TnyHeaderFlags flags;
2618         gboolean nested_attachments = FALSE;
2619         gboolean selected_messages = FALSE;
2620         const DimmedState *state = NULL;
2621         gboolean result = FALSE;
2622
2623         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2624         state = modest_window_get_dimming_state (win);
2625
2626         if (MODEST_IS_MAIN_WINDOW (win)) {
2627                 flags = TNY_HEADER_FLAG_ATTACHMENTS;
2628                 if (!result)
2629                         result = !state->any_has_attachments;
2630         }
2631         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2632
2633                 /* Get selected atachments */
2634                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2635                 n_selected = tny_list_get_length (attachments);
2636
2637                 /* Check unique */
2638                 if (!result) {
2639                         if (unique)
2640                                 result = n_selected != 1;
2641                         else
2642
2643                                 result = n_selected < 1;
2644                 }
2645
2646                 /* Check attached type (view operation not required) */
2647                 if (!result && !for_view)  {
2648                         TnyIterator *iter;
2649                         iter = tny_list_create_iterator (attachments);
2650                         while (!tny_iterator_is_done (iter) && !result) {
2651 #ifdef MODEST_TOOLKIT_HILDON2
2652                                 gboolean not_selectable = FALSE;
2653 #endif
2654                                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2655                                 TnyList *nested_list = tny_simple_list_new ();
2656                                 tny_mime_part_get_parts (mime_part, nested_list);
2657
2658                                 if (!for_remove && modest_tny_mime_part_is_msg (mime_part)) {
2659                                         TnyMsg *window_msg;
2660                                         window_msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2661                                         if ((TnyMimePart *) window_msg != mime_part) {
2662                                                 selected_messages = TRUE;
2663 #ifdef MODEST_TOOLKIT_HILDON2
2664                                                 not_selectable = TRUE;
2665 #else
2666                                                 result = TRUE;
2667 #endif
2668                                         }
2669                                         g_object_unref (window_msg);
2670                                 }
2671                                 if (!for_remove && tny_list_get_length (nested_list) > 0) {
2672                                         nested_attachments = TRUE;
2673 #ifdef MODEST_TOOLKIT_HILDON2
2674                                         not_selectable = TRUE;
2675 #else
2676                                         result = TRUE;
2677 #endif
2678                                 }
2679 #ifdef MODEST_TOOLKIT_HILDON2
2680                                 if (not_selectable)
2681                                         n_selected --;
2682 #endif
2683                                 g_object_unref (nested_list);
2684                                 g_object_unref (mime_part);
2685                                 tny_iterator_next (iter);
2686                         }
2687                         g_object_unref (iter);
2688                 }
2689
2690                 /* No valid attachment available */
2691                 if (n_selected == 0)
2692                         result = TRUE;
2693
2694                 /* Set notifications */
2695                 if (result && rule != NULL) {
2696                         if (selected_messages) {
2697                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_save_attach_mail"));
2698                         } else if (nested_attachments) {
2699                                 modest_dimming_rule_set_notification (rule, _("FIXME:unable to save attachments with nested elements"));
2700                         } else if (n_selected == 0) {
2701                                 modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
2702                         } else if (unique) {
2703                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_display_more"));
2704                         }
2705                 }
2706
2707                 /* Free */
2708                 g_object_unref (attachments);
2709         }
2710
2711         return result;
2712 }
2713
2714 static gboolean
2715 _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule)
2716 {
2717         TnyList *attachments = NULL;
2718         TnyIterator *iter;
2719         gint purged = 0;
2720         gint n_attachments = 0;
2721         gboolean result = FALSE;
2722
2723         /* This should check if _all_ the attachments are already purged. If only some
2724          * of them are purged, then it does not cause dim as there's a confirmation dialog
2725          * for removing only local attachments */
2726
2727         /* Get selected atachments */
2728         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2729                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2730         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2731                 /* If we're in main window, we won't know if there are already purged attachments */
2732                 return FALSE;
2733         }
2734
2735         if (attachments == NULL)
2736                 return FALSE;
2737
2738         if (tny_list_get_length (attachments) == 0) {
2739                 g_object_unref (attachments);
2740                 return FALSE;
2741         }
2742
2743         iter = tny_list_create_iterator (attachments);
2744         while (!tny_iterator_is_done (iter)) {
2745                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2746                 if (tny_mime_part_is_purged (mime_part)) {
2747                         purged++;
2748                 }
2749                 n_attachments++;
2750                 g_object_unref (mime_part);
2751                 tny_iterator_next (iter);
2752         }
2753         g_object_unref (iter);
2754
2755         /* Free */
2756         g_object_unref (attachments);
2757
2758         if (all)
2759                 result = (purged == n_attachments);
2760         else
2761                 result = (purged > 0);
2762
2763         /* This string no longer exists, refer to NB#75415 for more info
2764         if (result && (rule != NULL))
2765                 modest_dimming_rule_set_notification (rule, _("mail_ib_attachment_already_purged"));
2766         */
2767
2768         return result;
2769 }
2770
2771 static gboolean
2772 _invalid_msg_selected (ModestMainWindow *win,
2773                        gboolean unique,
2774                        ModestDimmingRule *rule)
2775 {
2776         GtkWidget *folder_view = NULL;
2777         const DimmedState *state = NULL;
2778         gboolean result = FALSE;
2779
2780         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2781         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (rule), FALSE);
2782         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2783
2784         /* Get folder view to check focus */
2785         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2786                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2787
2788         /* Check dimmed rule (TODO: check focus on widgets */
2789         if (!result) {
2790                 result = ((state->n_selected == 0 ) ||
2791                           (gtk_widget_is_focus (folder_view)));
2792                 if (result)
2793                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2794         }
2795         if (!result && unique) {
2796                 result = state->n_selected > 1;
2797                 if (result)
2798                         modest_dimming_rule_set_notification (rule, _("mcen_ib_select_one_message"));
2799         }
2800
2801         return result;
2802 }
2803
2804
2805 static gboolean
2806 _msg_download_in_progress (ModestWindow *win)
2807 {
2808         gboolean result = FALSE;
2809
2810         g_return_val_if_fail (MODEST_IS_WINDOW (win), FALSE);
2811
2812         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2813                 result = modest_msg_view_window_toolbar_on_transfer_mode (MODEST_MSG_VIEW_WINDOW(win));
2814         }
2815         else if (MODEST_IS_MAIN_WINDOW (win)) {
2816                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW(win));
2817         }
2818
2819         return result;
2820 }
2821
2822 static gboolean
2823 _msg_download_completed (ModestMainWindow *win)
2824 {
2825         const DimmedState *state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2826         return state->any_marked_as_cached;
2827 }
2828
2829 static void
2830 fill_list_of_caches (gpointer key, gpointer value, gpointer userdata)
2831 {
2832         GSList **send_queues = (GSList **) userdata;
2833         *send_queues = g_slist_prepend (*send_queues, value);
2834 }
2835
2836 static gboolean
2837 _selected_msg_sent_in_progress (ModestWindow *win)
2838 {
2839         const DimmedState *state = modest_window_get_dimming_state (win);
2840         return state->sent_in_progress;
2841 }
2842
2843
2844 static gboolean
2845 _invalid_folder_for_purge (ModestWindow *win,
2846                            ModestDimmingRule *rule)
2847 {
2848         TnyFolder *folder = NULL;
2849         TnyAccount *account = NULL;
2850         gboolean result = FALSE;
2851
2852         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2853
2854                 /* Get folder and account of message */
2855                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2856                 g_return_val_if_fail(msg != NULL, TRUE);
2857                 folder = tny_msg_get_folder (msg);
2858                 g_object_unref (msg);
2859                 if (folder == NULL) {
2860                         result = TRUE;
2861                         goto frees;
2862                 }
2863         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2864                 GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2865                                                                               MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2866                 if (!folder_view)
2867                         return FALSE;
2868                 folder = (TnyFolder *) modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
2869                 /* Could be a folder store */
2870                 if (folder == NULL || ! TNY_IS_FOLDER (folder))
2871                         goto frees;
2872         } else {
2873                 g_return_val_if_reached (FALSE);
2874         }
2875         account = modest_tny_folder_get_account (folder);
2876         if (account == NULL) goto frees;
2877
2878         /* Check account */
2879         if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (account))) {
2880                 TnyFolderType types[2];
2881                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
2882                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
2883
2884                 if (_selected_folder_is_any_of_type (win, types, 2)) {
2885                         result = TRUE;
2886                 }
2887         } else {
2888                 ModestProtocolType protocol_type = modest_tny_account_get_protocol_type (TNY_ACCOUNT (account));
2889                 /* If it's a remote folder then dim */
2890                 if (modest_protocol_registry_protocol_type_has_tag (modest_runtime_get_protocol_registry (),
2891                                                                     protocol_type,
2892                                                                     MODEST_PROTOCOL_REGISTRY_REMOTE_STORE_PROTOCOLS)) {
2893                         result = TRUE;
2894                 }
2895         }
2896
2897 frees:
2898         if (folder != NULL)
2899                 g_object_unref (folder);
2900         if (account != NULL)
2901                 g_object_unref (account);
2902
2903         return result;
2904 }
2905
2906 static gboolean
2907 _transfer_mode_enabled (ModestWindow *win)
2908 {
2909         gboolean result = FALSE;
2910
2911         /* Check dimming */
2912         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2913                 result = modest_msg_view_window_transfer_mode_enabled (MODEST_MSG_VIEW_WINDOW (win));
2914         } else if (MODEST_IS_MAIN_WINDOW(win)) {
2915                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW (win));
2916 #ifdef MODEST_TOOLKIT_HILDON2
2917         } else if (MODEST_IS_FOLDER_WINDOW (win)) {
2918                 result = modest_folder_window_transfer_mode_enabled (MODEST_FOLDER_WINDOW (win));
2919         } else if (MODEST_IS_HEADER_WINDOW (win)) {
2920                 result = modest_header_window_transfer_mode_enabled (MODEST_HEADER_WINDOW (win));
2921 #endif
2922         } else {
2923                 g_warning("_transfer_mode_enabled called with wrong window type");
2924         }
2925
2926         return result;
2927 }
2928
2929 static gboolean
2930 _selected_folder_has_subfolder_with_same_name (ModestWindow *win)
2931 {
2932         GtkWidget *folder_view = NULL;
2933         TnyFolderStore *folder = NULL;
2934         ModestEmailClipboard *clipboard = NULL;
2935         const gchar *folder_name = NULL;
2936         gboolean result = FALSE;
2937
2938         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
2939
2940         /*Get current parent folder */
2941         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2942                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2943         /* If no folder view, always dimmed */
2944         if (!folder_view) return FALSE;
2945
2946         /* Get selected folder as parent of new folder to create */
2947         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2948         if (!(folder && TNY_IS_FOLDER(folder))) goto frees;
2949
2950         /* get modest clipboard and source folder */
2951         clipboard = modest_runtime_get_email_clipboard ();
2952         folder_name = modest_email_clipboard_get_folder_name (clipboard);
2953         if (folder_name == NULL) goto frees;
2954
2955         /* Check source subfolders names */
2956         result = modest_tny_folder_has_subfolder_with_name (folder, folder_name,
2957                                                             TRUE);
2958
2959         /* Free */
2960  frees:
2961         if (folder != NULL)
2962                 g_object_unref (folder);
2963
2964
2965         return result;
2966 }
2967
2968 static gboolean
2969 _all_msgs_in_sending_status (ModestHeaderView *header_view)
2970 {
2971         GtkTreeModel *model;
2972         GtkTreeIter iter;
2973         gboolean all_sending = TRUE;
2974
2975         model = gtk_tree_view_get_model (GTK_TREE_VIEW (header_view));
2976         if (gtk_tree_model_get_iter_first (model, &iter)) {
2977                 do {
2978                         TnyHeader *header;
2979
2980                         gtk_tree_model_get (model, &iter,
2981                                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
2982                                             &header,
2983                                             -1);
2984
2985                         if (header) {
2986                                 if (modest_tny_all_send_queues_get_msg_status (header) !=
2987                                     MODEST_TNY_SEND_QUEUE_SENDING)
2988                                         all_sending = FALSE;
2989                                 g_object_unref (header);
2990                         }
2991
2992                 } while (all_sending && gtk_tree_model_iter_next (model, &iter));
2993         }
2994         return all_sending;
2995 }
2996
2997 gboolean
2998 modest_ui_dimming_rules_on_save_to_drafts (ModestWindow *win,
2999                                            gpointer user_data)
3000 {
3001         ModestDimmingRule *rule = NULL;
3002
3003         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
3004         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3005         rule = MODEST_DIMMING_RULE (user_data);
3006
3007         /* Check dimmed rule */
3008         return !modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (win));
3009 }
3010
3011 gboolean
3012 modest_ui_dimming_rules_on_insert_image (ModestWindow *win,
3013                                          gpointer user_data)
3014 {
3015         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
3016
3017         ModestMsgEditFormat format =
3018           modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
3019
3020         return (format != MODEST_MSG_EDIT_FORMAT_HTML);
3021 }
3022
3023 static gboolean
3024 _send_receive_in_progress (ModestWindow *win)
3025 {
3026         ModestMailOperationQueue *queue;
3027         GSList *op_list, *node;
3028         gboolean found_send_receive;
3029
3030         queue = modest_runtime_get_mail_operation_queue ();
3031         op_list = modest_mail_operation_queue_get_by_source (queue, G_OBJECT (win));
3032
3033         found_send_receive = FALSE;
3034         for (node = op_list; node != NULL; node = g_slist_next (node)) {
3035                 ModestMailOperation *op;
3036
3037                 op = (ModestMailOperation *) node->data;
3038                 if (modest_mail_operation_get_type_operation (op) == MODEST_MAIL_OPERATION_TYPE_SEND_AND_RECEIVE) {
3039                         found_send_receive = TRUE;
3040                         break;
3041                 }
3042         }
3043
3044         if (op_list) {
3045                 g_slist_foreach (op_list, (GFunc) g_object_unref, NULL);
3046                 g_slist_free (op_list);
3047         }
3048
3049         return found_send_receive;
3050 }
3051
3052 static gboolean
3053 _msgs_send_in_progress (void)
3054 {
3055         ModestCacheMgr *cache_mgr;
3056         GHashTable *send_queue_cache;
3057         ModestTnySendQueue *send_queue;
3058         GSList *send_queues = NULL, *node = NULL;
3059         gboolean found = FALSE;
3060
3061         cache_mgr = modest_runtime_get_cache_mgr ();
3062         send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
3063                                                        MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
3064
3065         g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
3066
3067         for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
3068                 send_queue = MODEST_TNY_SEND_QUEUE (node->data);
3069
3070                 /* Check if msg uid is being processed inside send queue */
3071                 if (modest_tny_send_queue_sending_in_progress (send_queue)) {
3072                         found = TRUE;
3073                         break;
3074                 }
3075         }
3076
3077         g_slist_free (send_queues);
3078
3079         return found;
3080 }
3081
3082 /*****************************************************************************/
3083 /********************** HILDON2 only dimming rules ***************************/
3084 /*****************************************************************************/
3085
3086 #ifdef MODEST_TOOLKIT_HILDON2
3087 gboolean
3088 modest_ui_dimming_rules_on_header_window_move_to (ModestWindow *win, gpointer user_data)
3089 {
3090         ModestDimmingRule *rule = NULL;
3091         gboolean dimmed = FALSE;
3092
3093         g_return_val_if_fail (MODEST_IS_HEADER_WINDOW(win), FALSE);
3094         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3095         rule = MODEST_DIMMING_RULE (user_data);
3096
3097         /* Check dimmed rule */
3098         dimmed = _transfer_mode_enabled (win);
3099         if (dimmed)
3100                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
3101
3102         if (!dimmed) {
3103                 GtkWidget *header_view;
3104                 TnyFolder *folder;
3105
3106                 header_view = GTK_WIDGET (modest_header_window_get_header_view (MODEST_HEADER_WINDOW (win)));
3107                 folder = modest_header_view_get_folder (MODEST_HEADER_VIEW (header_view));
3108                 if (folder) {
3109                         dimmed = (tny_folder_get_all_count (TNY_FOLDER (folder)) == 0) ||
3110                                 modest_header_view_is_empty (MODEST_HEADER_VIEW (header_view));
3111
3112                         if (!dimmed &&
3113                             (tny_folder_get_folder_type (TNY_FOLDER (folder)) == TNY_FOLDER_TYPE_OUTBOX)) {
3114                                 dimmed = _all_msgs_in_sending_status (MODEST_HEADER_VIEW (header_view));;
3115                         }
3116                         g_object_unref (folder);
3117                 }
3118         }
3119
3120         return dimmed;
3121 }
3122
3123 gboolean
3124 modest_ui_dimming_rules_on_folder_window_move_to (ModestWindow *win, gpointer user_data)
3125 {
3126         ModestDimmingRule *rule = NULL;
3127         gboolean dimmed = FALSE;
3128
3129         g_return_val_if_fail (MODEST_IS_FOLDER_WINDOW(win), FALSE);
3130         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3131         rule = MODEST_DIMMING_RULE (user_data);
3132
3133         /* Check dimmed rule */
3134         dimmed = _transfer_mode_enabled (win);
3135         if (dimmed)
3136                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
3137
3138         if (MODEST_IS_FOLDER_WINDOW (win)) {
3139                 ModestFolderView *folder_view;
3140                 folder_view = modest_folder_window_get_folder_view (MODEST_FOLDER_WINDOW (win));
3141                 dimmed = !modest_folder_view_any_folder_fulfils_rules (folder_view,
3142                                                                        MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE);
3143         }
3144
3145         if (!dimmed) {
3146                 dimmed = _transfer_mode_enabled (win);
3147                 if (dimmed)
3148                         modest_dimming_rule_set_notification (rule, "");
3149         }
3150
3151         return dimmed;
3152 }
3153
3154 gboolean
3155 modest_ui_dimming_rules_on_folder_window_delete (ModestWindow *win, gpointer user_data)
3156 {
3157         ModestDimmingRule *rule = NULL;
3158         gboolean dimmed = FALSE;
3159
3160         g_return_val_if_fail (MODEST_IS_FOLDER_WINDOW(win), FALSE);
3161         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
3162         rule = MODEST_DIMMING_RULE (user_data);
3163
3164         /* Check dimmed rule */
3165         dimmed = _transfer_mode_enabled (win);
3166         if (dimmed)
3167                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
3168
3169         if (MODEST_IS_FOLDER_WINDOW (win)) {
3170                 ModestFolderView *folder_view;
3171                 folder_view = modest_folder_window_get_folder_view (MODEST_FOLDER_WINDOW (win));
3172                 dimmed = !modest_folder_view_any_folder_fulfils_rules (folder_view,
3173                                                                        MODEST_FOLDER_RULES_FOLDER_NON_DELETABLE);
3174         }
3175
3176         if (!dimmed) {
3177                 dimmed = _transfer_mode_enabled (win);
3178                 if (dimmed)
3179                         modest_dimming_rule_set_notification (rule, "");
3180         }
3181
3182         return dimmed;
3183 }
3184
3185 gboolean
3186 modest_ui_dimming_rules_on_edit_accounts (ModestWindow *win, gpointer user_data)
3187 {
3188         return !modest_account_mgr_has_accounts (modest_runtime_get_account_mgr (), TRUE);
3189 }
3190 #endif