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

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