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

   1 /* Copyright (c) 2006, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #ifdef HAVE_CONFIG_H
  31 #include <config.h>
  32 #endif /*HAVE_CONFIG_H*/
  33
  34 #include <string.h>
  35 #include "modest-ui-dimming-rules.h"
  36 #include "modest-ui-actions.h"
  37 #include "modest-dimming-rule.h"
  38 #include "modest-debug.h"
  39 #include "modest-tny-folder.h"
  40 #include "modest-tny-account.h"
  41 #include "modest-text-utils.h"
  42 #include <widgets/modest-attachments-view.h>
  43 #include <modest-runtime.h>
  44 #include <tny-simple-list.h>
  45 #include <widgets/modest-recpt-editor.h>
  46 #include <gtkhtml/gtkhtml.h>
  47
  48
  49 static gboolean _folder_is_any_of_type (TnyFolder *folder, TnyFolderType types[], guint ntypes);
  50 static gboolean _invalid_msg_selected (ModestMainWindow *win, gboolean unique, ModestDimmingRule *rule);
  51 static gboolean _invalid_attach_selected (ModestWindow *win,
  52                                           gboolean unique, gboolean for_view, gboolean for_remove,
  53                                           ModestDimmingRule *rule);
  54 static gboolean _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule);
  55 static gboolean _clipboard_is_empty (ModestWindow *win);
  56 static gboolean _invalid_clipboard_selected (ModestWindow *win, ModestDimmingRule *rule);
  57 static gboolean _selected_folder_not_writeable (ModestMainWindow *win, gboolean for_paste);
  58 static gboolean _selected_folder_not_moveable (ModestMainWindow *win);
  59 static gboolean _selected_folder_not_renameable (ModestMainWindow *win);
  60 static gboolean _selected_folder_not_deletable (ModestMainWindow *win);
  61 static gboolean _selected_folder_is_any_of_type (ModestWindow *win, TnyFolderType types[], guint ntypes);
  62 static gboolean _selected_folder_is_root_or_inbox (ModestMainWindow *win);
  63 static gboolean _selected_folder_is_MMC_or_POP_root (ModestMainWindow *win);
  64 static gboolean _selected_folder_is_root (ModestMainWindow *win);
  65 static gboolean _header_view_is_all_selected (ModestMainWindow *win);
  66 static gboolean _selected_folder_is_empty (ModestMainWindow *win);
  67 static gboolean _folder_view_has_focus (ModestWindow *win);
  68 static gboolean _selected_folder_is_same_as_source (ModestWindow *win);
  69 static gboolean _msg_download_in_progress (ModestWindow *win);
  70 static gboolean _msg_download_completed (ModestMainWindow *win);
  71 static gboolean _selected_msg_sent_in_progress (ModestWindow *win);
  72 static gboolean _sending_in_progress (ModestWindow *win);
  73 static gboolean _invalid_folder_for_purge (ModestWindow *win, ModestDimmingRule *rule);
  74 static gboolean _transfer_mode_enabled (ModestWindow *win);
  75 static gboolean _selected_folder_has_subfolder_with_same_name (ModestWindow *win);
  76 static void fill_list_of_caches (gpointer key, gpointer value, gpointer userdata);
  77
  78
  79 static DimmedState *
  80 _define_main_window_dimming_state (ModestMainWindow *window)
  81 {
  82         DimmedState *state = NULL;
  83         GtkWidget *focused_widget = NULL;
  84         GtkWidget *header_view = NULL;
  85         GtkTreeModel *model = NULL;
  86         TnyList *selected_headers = NULL;
  87         TnyIterator *iter = NULL;
  88         TnyHeader *header = NULL;
  89         ModestCacheMgr *cache_mgr = NULL;
  90         GHashTable *send_queue_cache = NULL;
  91         ModestTnySendQueue *send_queue = NULL;
  92         GSList *send_queues = NULL, *node = NULL;
  93         ModestWindowMgr *mgr = NULL;
  94         gboolean found = FALSE;
  95         gchar *msg_uid = NULL;
  96         TnyHeaderFlags flags;
  97         gboolean all_deleted = TRUE;
  98         gboolean all_seen = TRUE;
  99         gboolean all_cached = TRUE;
 100         gboolean all_has_attach = TRUE;
 101
 102         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(window), NULL);
 103
 104         /* Init state */
 105         state = g_slice_new0 (DimmedState);
 106         state->n_selected = 0;
 107         state->already_opened_msg = 0;
 108         state->any_marked_as_deleted = FALSE;
 109         state->all_marked_as_deleted = FALSE;
 110         state->any_marked_as_seen = FALSE;
 111         state->all_marked_as_seen = FALSE;
 112         state->any_marked_as_cached = FALSE;
 113         state->all_marked_as_cached = FALSE;
 114         state->any_has_attachments = FALSE;
 115         state->all_has_attachments = FALSE;
 116         state->sent_in_progress = FALSE;
 117         state->all_selected = FALSE;
 118
 119         /* Get focused widget */
 120         focused_widget = gtk_window_get_focus (GTK_WINDOW (window));
 121         if (MODEST_IS_FOLDER_VIEW (focused_widget)) {
 122                 state->n_selected++;
 123                 return state;
 124         } else if (MODEST_IS_HEADER_VIEW (focused_widget)) {
 125                 header_view = focused_widget;
 126         } else {
 127                 header_view = modest_main_window_get_child_widget (window, MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
 128         }
 129
 130         /* Get header view and selected headers */
 131         selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
 132         if (!selected_headers)
 133                 return state;
 134
 135         /* Examine selected headers */
 136         iter = tny_list_create_iterator (selected_headers);
 137         while (!tny_iterator_is_done (iter)) {
 138                 header = TNY_HEADER (tny_iterator_get_current (iter));
 139                 flags = tny_header_get_flags (header);
 140
 141                 /* No selected */
 142                 state->n_selected++;
 143
 144                 /* Already opened */
 145                 mgr = modest_runtime_get_window_mgr ();
 146                 if (modest_window_mgr_find_registered_header (mgr, header, NULL))
 147                         state->already_opened_msg++;
 148
 149
 150                 /* Mark as deleted */
 151                 all_deleted = all_deleted && (flags & TNY_HEADER_FLAG_DELETED);
 152                 state->all_marked_as_deleted = all_deleted;
 153                 if (!state->any_marked_as_deleted)
 154                         state->any_marked_as_deleted = flags & TNY_HEADER_FLAG_DELETED;
 155
 156                 /* Mark as seen */
 157                 all_seen = all_seen && (flags & TNY_HEADER_FLAG_SEEN);
 158                 state->all_marked_as_seen = all_seen;
 159                 if (!state->any_marked_as_seen)
 160                         state->any_marked_as_seen = flags & TNY_HEADER_FLAG_SEEN;
 161
 162                 /* Mark as cached */
 163                 all_cached = all_cached && (flags & TNY_HEADER_FLAG_CACHED);
 164                 state->all_marked_as_cached = all_cached;
 165                 if (!state->any_marked_as_cached)
 166                         state->any_marked_as_cached = flags & TNY_HEADER_FLAG_CACHED;
 167
 168                 /* Mark has_attachments */
 169                 all_has_attach = all_has_attach && (flags & TNY_HEADER_FLAG_ATTACHMENTS);
 170                 state->all_has_attachments = all_has_attach;
 171                 if (!state->any_has_attachments)
 172                         state->any_has_attachments = flags & TNY_HEADER_FLAG_ATTACHMENTS;
 173
 174                 /* sent in progress */
 175                 msg_uid = modest_tny_send_queue_get_msg_id (header);
 176                 if (!state->sent_in_progress) {
 177                         cache_mgr = modest_runtime_get_cache_mgr ();
 178                         send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
 179                                                                        MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
 180
 181                         g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
 182
 183                         for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
 184                                 send_queue = MODEST_TNY_SEND_QUEUE (node->data);
 185
 186                                 /* Check if msg uid is being processed inside send queue */
 187                                 found = modest_tny_send_queue_msg_is_being_sent (send_queue, msg_uid);
 188                         }
 189                         state->sent_in_progress = found;
 190                 }
 191
 192                 tny_iterator_next (iter);
 193                 g_object_unref (header);
 194         }
 195
 196         /* check if all the headers are selected or not */
 197         model = gtk_tree_view_get_model(GTK_TREE_VIEW(header_view));
 198         if (model != NULL){
 199                 gint count;
 200                 count = gtk_tree_model_iter_n_children(model, NULL);
 201                 if(state->n_selected == count)
 202                         state->all_selected = TRUE;
 203         }
 204
 205         /* Free */
 206         g_free(msg_uid);
 207         g_object_unref(selected_headers);
 208         g_object_unref(iter);
 209         g_slist_free (send_queues);
 210
 211         return state;
 212 }
 213
 214 static DimmedState *
 215 _define_msg_view_window_dimming_state (ModestMsgViewWindow *window)
 216 {
 217         DimmedState *state = NULL;
 218         TnyHeader *header = NULL;
 219         ModestCacheMgr *cache_mgr = NULL;
 220         GHashTable *send_queue_cache = NULL;
 221         ModestTnySendQueue *send_queue = NULL;
 222         GSList *send_queues = NULL, *node = NULL;
 223         gboolean found = FALSE;
 224         gchar *msg_uid = NULL;
 225         TnyHeaderFlags flags;
 226         gboolean all_deleted = TRUE;
 227         gboolean all_seen = TRUE;
 228         gboolean all_cached = TRUE;
 229         gboolean all_has_attach = TRUE;
 230
 231         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(window), NULL);
 232
 233         /* Init state */
 234         state = g_slice_new0 (DimmedState);
 235         state->n_selected = 0;
 236         state->already_opened_msg = 0;
 237         state->any_marked_as_deleted = FALSE;
 238         state->all_marked_as_deleted = FALSE;
 239         state->any_marked_as_seen = FALSE;
 240         state->all_marked_as_seen = FALSE;
 241         state->any_marked_as_cached = FALSE;
 242         state->all_marked_as_cached = FALSE;
 243         state->any_has_attachments = FALSE;
 244         state->all_has_attachments = FALSE;
 245         state->sent_in_progress = FALSE;
 246
 247         header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW(window));
 248         if (header == NULL)
 249                 return state;
 250         g_return_val_if_fail (TNY_IS_HEADER(header), state);
 251         flags = tny_header_get_flags (header);
 252
 253         /* Selected */
 254         state->n_selected++;
 255
 256         /* Mark as deleted */
 257         all_deleted = all_deleted && (flags & TNY_HEADER_FLAG_DELETED);
 258         state->all_marked_as_deleted = all_deleted;
 259         if (!state->any_marked_as_deleted)
 260                 state->any_marked_as_deleted = flags & TNY_HEADER_FLAG_DELETED;
 261
 262         /* Mark as seen */
 263         all_seen = all_seen && (flags & TNY_HEADER_FLAG_SEEN);
 264         state->all_marked_as_seen = all_seen;
 265         if (!state->any_marked_as_seen)
 266                 state->any_marked_as_seen = flags & TNY_HEADER_FLAG_SEEN;
 267
 268         /* Mark as cached */
 269         all_cached = all_cached && (flags & TNY_HEADER_FLAG_CACHED);
 270         state->all_marked_as_cached = all_cached;
 271         if (!state->any_marked_as_cached)
 272                 state->any_marked_as_cached = flags & TNY_HEADER_FLAG_CACHED;
 273
 274         /* Mark has_attachments */
 275         all_has_attach = all_has_attach && (flags & TNY_HEADER_FLAG_ATTACHMENTS);
 276         state->all_has_attachments = all_has_attach;
 277         if (!state->any_has_attachments)
 278                 state->any_has_attachments = (flags & TNY_HEADER_FLAG_ATTACHMENTS)?1:0;
 279
 280         /* sent in progress */
 281         msg_uid = modest_tny_send_queue_get_msg_id (header);
 282         if (!state->sent_in_progress) {
 283                 cache_mgr = modest_runtime_get_cache_mgr ();
 284                 send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
 285                                                                MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
 286
 287                 g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
 288
 289                 for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
 290                         send_queue = MODEST_TNY_SEND_QUEUE (node->data);
 291
 292                         /* Check if msg uid is being processed inside send queue */
 293                         found = modest_tny_send_queue_msg_is_being_sent (send_queue, msg_uid);
 294                 }
 295                 state->sent_in_progress = found;
 296         }
 297
 298         /* Free */
 299         g_free(msg_uid);
 300         g_object_unref (header);
 301         g_slist_free (send_queues);
 302
 303         return state;
 304 }
 305
 306
 307 DimmedState *
 308 modest_ui_dimming_rules_define_dimming_state (ModestWindow *window)
 309 {
 310         DimmedState *state = NULL;
 311
 312         g_return_val_if_fail (MODEST_IS_WINDOW(window), NULL);
 313
 314         if (MODEST_IS_MAIN_WINDOW (window))
 315                 state = _define_main_window_dimming_state (MODEST_MAIN_WINDOW(window));
 316         else if (MODEST_IS_MSG_VIEW_WINDOW (window)) {
 317                 state = _define_msg_view_window_dimming_state (MODEST_MSG_VIEW_WINDOW(window));
 318         }
 319
 320         return state;
 321 }
 322
 323 gboolean
 324 modest_ui_dimming_rules_on_new_msg (ModestWindow *win, gpointer user_data)
 325 {
 326         ModestDimmingRule *rule = NULL;
 327         gboolean dimmed = FALSE;
 328
 329         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 330         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 331         rule = MODEST_DIMMING_RULE (user_data);
 332
 333         /* Check dimmed rule */
 334         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
 335                 if (!dimmed) {
 336                         dimmed = _msg_download_in_progress (win);
 337                         if (dimmed)
 338                                 modest_dimming_rule_set_notification (rule, "");
 339                 }
 340         } else if (MODEST_IS_MAIN_WINDOW(win)) {
 341                 if (!dimmed) {
 342                         dimmed = !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
 343                                                                   TRUE);
 344                         if (dimmed)
 345                                 modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
 346                 }
 347         }
 348
 349         return dimmed;
 350 }
 351
 352 gboolean
 353 modest_ui_dimming_rules_on_new_folder (ModestWindow *win, gpointer user_data)
 354 {
 355         ModestDimmingRule *rule = NULL;
 356         GtkWidget *folder_view = NULL;
 357         TnyFolderStore *parent_folder = NULL;
 358         gboolean dimmed = FALSE;
 359
 360         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 361         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 362         rule = MODEST_DIMMING_RULE (user_data);
 363
 364         if (!dimmed) {
 365                 dimmed = _transfer_mode_enabled (win);
 366                 if (dimmed) {
 367                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 368                         return dimmed;
 369                 }
 370         }
 371
 372         /* Get selected folder as parent of new folder to create */
 373         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 374                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 375         if (!folder_view) /* folder view may not have been created yet */
 376                 return TRUE;
 377
 378         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
 379         if (!parent_folder)
 380                 return TRUE;
 381
 382         if (TNY_IS_ACCOUNT (parent_folder)) {
 383                 /* If it's the local account then do not dim */
 384                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
 385                         dimmed = FALSE;
 386                 } else {
 387                         const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
 388                         if (proto_str != NULL) {
 389                                 /* If it's POP then dim */
 390                                 dimmed = (modest_protocol_info_get_transport_store_protocol (proto_str) ==
 391                                           MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
 392                                 if (dimmed)
 393                                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 394                         }
 395                 }
 396         } else {
 397                 /* TODO: the specs say that only one level of subfolder is allowed, is this true ? */
 398
 399                 TnyFolderType types[3];
 400
 401                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 402                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 403                 types[2] = TNY_FOLDER_TYPE_SENT;
 404
 405                 /* Apply folder rules */
 406                 if (!dimmed) {
 407                         dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win), FALSE);
 408                         if (dimmed)
 409                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 410                 }
 411                 if (!dimmed) {
 412                         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 413                         if (dimmed)
 414                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 415                 }
 416         }
 417
 418         /* if not the folder is selected then dim */
 419         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 420                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 421         if (folder_view && !gtk_widget_is_focus (folder_view))
 422                 dimmed = TRUE;
 423
 424         g_object_unref (parent_folder);
 425
 426         return dimmed;
 427 }
 428
 429 gboolean
 430 modest_ui_dimming_rules_on_delete (ModestWindow *win, gpointer user_data)
 431 {
 432         ModestDimmingRule *rule = NULL;
 433         GtkWidget *folder_view = NULL;
 434         GtkWidget *header_view = NULL;
 435         gboolean dimmed = FALSE;
 436
 437         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 438         rule = MODEST_DIMMING_RULE (user_data);
 439
 440         if (MODEST_IS_MAIN_WINDOW (win)) {
 441                 /* Get the folder view */
 442                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 443                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 444
 445                 /* Get header view */
 446                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 447                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
 448
 449                 if (header_view && gtk_widget_is_focus (header_view))
 450                         dimmed = modest_ui_dimming_rules_on_delete_msg (win, rule);
 451
 452                 if (folder_view && gtk_widget_is_focus (folder_view))
 453                         dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 454
 455                 if (header_view && folder_view &&
 456                     !gtk_widget_is_focus (header_view) &&
 457                     !gtk_widget_is_focus (folder_view)) {
 458                         dimmed = TRUE;
 459                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ckct_ib_nothing_to_delete"));
 460                 }
 461         } else {
 462                 dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 463         }
 464
 465         return dimmed;
 466 }
 467
 468
 469
 470 gboolean
 471 modest_ui_dimming_rules_on_delete_folder (ModestWindow *win, gpointer user_data)
 472 {
 473         ModestDimmingRule *rule = NULL;
 474         TnyFolderType types[6];
 475         gboolean dimmed = FALSE;
 476
 477         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 478         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 479         rule = MODEST_DIMMING_RULE (user_data);
 480
 481         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 482         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 483         types[2] = TNY_FOLDER_TYPE_SENT;
 484         types[3] = TNY_FOLDER_TYPE_INBOX;
 485         types[4] = TNY_FOLDER_TYPE_ROOT;
 486         types[5] = TNY_FOLDER_TYPE_ARCHIVE;
 487
 488
 489         /* Check dimmed rule */
 490         if (!dimmed) {
 491                 dimmed = _selected_folder_not_deletable (MODEST_MAIN_WINDOW(win));
 492                 if (dimmed)
 493                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 494         }
 495         if (!dimmed) {
 496                 dimmed = _selected_folder_is_any_of_type (win, types, 6);
 497                 if (dimmed)
 498                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 499         }
 500         if (!dimmed) {
 501                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 502                 if (dimmed)
 503                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 504         }
 505         if (!dimmed) {
 506                 dimmed = _selected_folder_is_MMC_or_POP_root (MODEST_MAIN_WINDOW(win));
 507                 if (dimmed)
 508                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 509         }
 510         if (!dimmed) {
 511                 dimmed = _transfer_mode_enabled (win);
 512                 if (dimmed)
 513                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 514         }
 515
 516         return dimmed;
 517 }
 518
 519 gboolean
 520 modest_ui_dimming_rules_on_sort (ModestWindow *win, gpointer user_data)
 521 {
 522         ModestDimmingRule *rule = NULL;
 523         gboolean dimmed = FALSE;
 524
 525         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 526         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 527         rule = MODEST_DIMMING_RULE (user_data);
 528
 529         /* Check dimmed rule */
 530         if (!dimmed) {
 531                 dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
 532                 modest_dimming_rule_set_notification (rule, _CS("ckdg_ib_nothing_to_sort"));
 533         }
 534
 535         if (!dimmed) {
 536                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 537                 modest_dimming_rule_set_notification (rule, _CS("ckdg_ib_nothing_to_sort"));
 538         }
 539
 540         return dimmed;
 541
 542 }
 543
 544 gboolean
 545 modest_ui_dimming_rules_on_rename_folder (ModestWindow *win, gpointer user_data)
 546 {
 547         ModestDimmingRule *rule = NULL;
 548         TnyFolderType types[4];
 549         gboolean dimmed = FALSE;
 550
 551         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 552         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 553         rule = MODEST_DIMMING_RULE (user_data);
 554
 555         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 556         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 557         types[2] = TNY_FOLDER_TYPE_SENT;
 558         types[3] = TNY_FOLDER_TYPE_ARCHIVE;
 559
 560         /* Check dimmed rule */
 561         if (!dimmed) {
 562                 dimmed = _selected_folder_not_renameable (MODEST_MAIN_WINDOW(win));
 563                 if (dimmed)
 564                         modest_dimming_rule_set_notification (rule, "");
 565         }
 566         if (!dimmed) {
 567                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 568                 if (dimmed)
 569                         modest_dimming_rule_set_notification (rule, "");
 570         }
 571         if (!dimmed) {
 572                 dimmed = _selected_folder_is_any_of_type (win, types, 4);
 573                 if (dimmed)
 574                         modest_dimming_rule_set_notification (rule, "");
 575         }
 576         if (!dimmed) {
 577                 dimmed = _transfer_mode_enabled (win);
 578                 if (dimmed)
 579                         modest_dimming_rule_set_notification (rule, "");
 580         }
 581
 582         return dimmed;
 583 }
 584
 585 gboolean
 586 modest_ui_dimming_rules_on_open_msg (ModestWindow *win, gpointer user_data)
 587 {
 588         ModestDimmingRule *rule = NULL;
 589         gboolean dimmed = FALSE;
 590         const DimmedState *state = NULL;
 591
 592         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 593         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 594         rule = MODEST_DIMMING_RULE (user_data);
 595         state = modest_window_get_dimming_state (win);
 596
 597         /* Check dimmed rule */
 598         if (!dimmed) {
 599                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 600         }
 601         if (!dimmed) {
 602                 dimmed = state->any_marked_as_deleted;
 603                 if (dimmed) {
 604                         gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 605                         modest_dimming_rule_set_notification (rule, msg);
 606                         g_free (msg);
 607                 }
 608         }
 609         if (!dimmed) {
 610                 dimmed = _selected_msg_sent_in_progress (win);
 611                 if (dimmed)
 612                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_open_while_sent"));
 613         }
 614
 615         return dimmed;
 616 }
 617
 618 gboolean
 619 modest_ui_dimming_rules_on_reply_msg (ModestWindow *win, gpointer user_data)
 620 {
 621         ModestDimmingRule *rule = NULL;
 622         gboolean dimmed = FALSE;
 623         TnyFolderType types[3];
 624
 625         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 626         rule = MODEST_DIMMING_RULE (user_data);
 627
 628         /* main window dimming rules */
 629         if (MODEST_IS_MAIN_WINDOW(win)) {
 630
 631                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 632                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 633                 types[2] = TNY_FOLDER_TYPE_ROOT;
 634
 635                 /* Check dimmed rule */
 636                 if (!dimmed) {
 637                         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 638                         if (dimmed)
 639                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 640                 }
 641                 if (!dimmed) {
 642                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 643                         if (dimmed)
 644                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_nothing_to_reply"));
 645                 }
 646                 if (!dimmed) {
 647                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, rule);
 648                 }
 649         /* msg view window dimming rules */
 650         } else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
 651
 652                 /* Check dimmed rule */
 653                 if (!dimmed) {
 654                         dimmed = _transfer_mode_enabled (win);
 655                         if (dimmed)
 656                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 657                 }
 658                 if (!dimmed) {
 659                         dimmed = _msg_download_in_progress (win);
 660                         if (dimmed)
 661                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 662                 }
 663         }
 664
 665         return dimmed;
 666 }
 667
 668
 669 gboolean
 670 modest_ui_dimming_rules_on_contents_msg (ModestWindow *win, gpointer user_data)
 671 {
 672         ModestDimmingRule *rule = NULL;
 673         gboolean dimmed = FALSE;
 674
 675         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 676         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 677         rule = MODEST_DIMMING_RULE (user_data);
 678
 679         /* Check dimmed rule */
 680         if (!dimmed) {
 681                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 682         }
 683         if (!dimmed) {
 684                 dimmed = _msg_download_completed (MODEST_MAIN_WINDOW(win));
 685                 if (dimmed)
 686                         modest_dimming_rule_set_notification (rule, "");
 687         }
 688
 689         return dimmed;
 690 }
 691
 692 gboolean
 693 modest_ui_dimming_rules_always_dimmed (ModestWindow *win, gpointer user_data)
 694 {
 695         gboolean dimmed = FALSE;
 696
 697         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 698
 699         /* Check dimmed rule */
 700         if (!dimmed)
 701                 dimmed = TRUE;
 702
 703         return dimmed;
 704 }
 705
 706 gboolean
 707 modest_ui_dimming_rules_on_delete_msg (ModestWindow *win, gpointer user_data)
 708 {
 709         ModestDimmingRule *rule = NULL;
 710         const DimmedState *state = NULL;
 711         gboolean dimmed = FALSE;
 712
 713         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 714         rule = MODEST_DIMMING_RULE (user_data);
 715         state = modest_window_get_dimming_state (win);
 716
 717         /* Check dimmed rule */
 718         if (MODEST_IS_MAIN_WINDOW (win)) {
 719                 if (!dimmed) {
 720                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 721                         if (dimmed)
 722                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_nothing_to_delete"));
 723                 }
 724                 if (!dimmed) {
 725                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 726                 }
 727                 if (!dimmed) {
 728                         dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
 729                         if (dimmed) {
 730                                 gchar *num = NULL, *message = NULL;
 731
 732                                 num = g_strdup_printf ("%d", state->already_opened_msg);
 733                                 message = g_strdup_printf(_("mcen_nc_unable_to_delete_n_messages"), num);
 734                                 modest_dimming_rule_set_notification (rule, message);
 735                                 g_free(num);
 736                                 g_free(message);
 737                         }
 738
 739                 }
 740                 if (!dimmed) {
 741                         dimmed = state->any_marked_as_deleted;
 742                         if (dimmed) {
 743                                 gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 744                                 modest_dimming_rule_set_notification (rule, msg);
 745                                 g_free (msg);
 746                         }
 747                 }
 748                 if (!dimmed) {
 749                         dimmed = state->sent_in_progress;
 750                         if (dimmed)
 751                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 752                 }
 753         }
 754         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
 755                 if (!dimmed) {
 756                         dimmed = _transfer_mode_enabled (win);
 757                         if (dimmed)
 758                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 759                 }
 760                 if (!dimmed) {
 761                         dimmed = state->any_marked_as_deleted;
 762                         if (dimmed) {
 763                                 gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 764                                 modest_dimming_rule_set_notification (rule, msg);
 765                                 g_free (msg);
 766                         }
 767                 }
 768                 if (!dimmed) {
 769                         dimmed = state->sent_in_progress;
 770                         if (dimmed)
 771                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 772                 }
 773
 774                 /* The delete button should be dimmed when viewing an attachment,
 775                  * but should be enabled when viewing a message from the list,
 776                  * or when viewing a search result.
 777                  */
 778                 if (!dimmed) {
 779                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
 780                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW(win));
 781                                 if (dimmed) {
 782                                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 783                                 }
 784                         }
 785                 }
 786         }
 787
 788         return dimmed;
 789 }
 790
 791 gboolean
 792 modest_ui_dimming_rules_on_details (ModestWindow *win, gpointer user_data)
 793 {
 794         ModestDimmingRule *rule = NULL;
 795         GtkWidget *header_view = NULL;
 796         gboolean dimmed = FALSE;
 797
 798         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 799         rule = MODEST_DIMMING_RULE (user_data);
 800
 801         /* main window dimming rules */
 802         if (MODEST_IS_MAIN_WINDOW(win)) {
 803
 804                 /* Check dimmed rule */
 805                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 806                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
 807
 808                 /* If the header view has the focus: */
 809                 if (header_view && gtk_widget_is_focus (header_view)) {
 810                         /* Check dimmed rule */
 811                         if (!dimmed)
 812                                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 813                 }
 814                 else {
 815                         /* If the folder view has the focus: */
 816                         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 817                                 MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 818                         if (folder_view && gtk_widget_is_focus (folder_view)) {
 819                                 TnyFolderStore *folder_store
 820                                         = modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
 821                                 if (folder_store) {
 822                                         /* Only enable for folders, not accounts,
 823                                          * though the UI spec is not clear about that.
 824                                          * If we enable this for accounts then we must
 825                                          * add code to handle them in modest_ui_actions_on_details(). */
 826                                         if (!TNY_IS_FOLDER(folder_store)) {
 827                                                 dimmed = TRUE;
 828                                                 modest_dimming_rule_set_notification (rule, "");
 829                                         }
 830
 831                                         g_object_unref (folder_store);
 832                                 } else {
 833                                         dimmed = TRUE;
 834                                         modest_dimming_rule_set_notification (rule, "");
 835                                 }
 836                                 if (!dimmed) {
 837                                         dimmed = _msg_download_in_progress (win);
 838                                         if (dimmed)
 839                                                 modest_dimming_rule_set_notification (rule, "");
 840                                 }
 841
 842                         }
 843
 844                 }
 845
 846         /* msg view window dimming rules */
 847         } else {
 848
 849                 /* Check dimmed rule */
 850                 if (!dimmed) {
 851                         if (MODEST_IS_MSG_VIEW_WINDOW (win))
 852                                 dimmed = _msg_download_in_progress (win);
 853                         if (dimmed)
 854                                 modest_dimming_rule_set_notification (rule, "");
 855                 }
 856                 if (!dimmed) {
 857                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
 858                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
 859                         }
 860                         if (dimmed)
 861                                 modest_dimming_rule_set_notification (rule, "");
 862                 }
 863         }
 864
 865         return dimmed;
 866 }
 867
 868
 869 gboolean
 870 modest_ui_dimming_rules_on_mark_as_read_msg (ModestWindow *win, gpointer user_data)
 871 {
 872         ModestDimmingRule *rule = NULL;
 873         TnyHeaderFlags flags;
 874         const DimmedState *state = NULL;
 875         gboolean dimmed = FALSE;
 876
 877         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 878         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 879         rule = MODEST_DIMMING_RULE (user_data);
 880         state = modest_window_get_dimming_state (win);
 881
 882         flags = TNY_HEADER_FLAG_SEEN;
 883
 884         /* Check dimmed rule */
 885         if (!dimmed) {
 886                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 887         }
 888         if (!dimmed) {
 889                 dimmed = state->all_marked_as_seen;
 890                 if (dimmed)
 891                         modest_dimming_rule_set_notification (rule, "");
 892         }
 893
 894         return dimmed;
 895 }
 896
 897 gboolean
 898 modest_ui_dimming_rules_on_mark_as_unread_msg (ModestWindow *win, gpointer user_data)
 899 {
 900         ModestDimmingRule *rule = NULL;
 901         TnyHeaderFlags flags;
 902         const DimmedState *state = NULL;
 903         gboolean dimmed = FALSE;
 904
 905         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 906         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 907         rule = MODEST_DIMMING_RULE (user_data);
 908         state = modest_window_get_dimming_state (win);
 909
 910         flags = TNY_HEADER_FLAG_SEEN;
 911
 912         /* Check dimmed rule */
 913         if (!dimmed)
 914                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 915         if (!dimmed) {
 916                 dimmed = !state->any_marked_as_seen;
 917                 if (dimmed)
 918                         modest_dimming_rule_set_notification (rule, "");
 919         }
 920
 921         return dimmed;
 922 }
 923
 924 gboolean
 925 modest_ui_dimming_rules_on_move_to (ModestWindow *win, gpointer user_data)
 926 {
 927         ModestDimmingRule *rule = NULL;
 928         gboolean dimmed = FALSE;
 929
 930         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 931         rule = MODEST_DIMMING_RULE (user_data);
 932
 933         if (MODEST_IS_MAIN_WINDOW (win))
 934                 dimmed = modest_ui_dimming_rules_on_main_window_move_to (win, user_data);
 935         else if (MODEST_IS_MSG_VIEW_WINDOW (win))
 936                  dimmed = modest_ui_dimming_rules_on_view_window_move_to (win, user_data);
 937
 938         return dimmed;
 939 }
 940
 941
 942 gboolean
 943 modest_ui_dimming_rules_on_main_window_move_to (ModestWindow *win, gpointer user_data)
 944 {
 945         GtkWidget *folder_view = NULL;
 946         ModestDimmingRule *rule = NULL;
 947         const DimmedState *state = NULL;
 948         gboolean dimmed = FALSE;
 949
 950         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
 951         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 952         rule = MODEST_DIMMING_RULE (user_data);
 953         state = modest_window_get_dimming_state (win);
 954
 955         /* Get the folder view */
 956         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 957                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 958
 959
 960         /* Check diming rules for folders transfer  */
 961         if (folder_view && gtk_widget_is_focus (folder_view)) {
 962                 TnyFolderType types[5];
 963
 964                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 965                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 966                 types[2] = TNY_FOLDER_TYPE_SENT;
 967                 types[3] = TNY_FOLDER_TYPE_ROOT;
 968                 types[4] = TNY_FOLDER_TYPE_INBOX;
 969
 970                 /* Apply folder rules */
 971                 if (!dimmed) {
 972                         dimmed = _selected_folder_not_moveable (MODEST_MAIN_WINDOW(win));
 973                         if (dimmed)
 974                                 modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
 975                 }
 976                 if (!dimmed) {
 977                         dimmed = _selected_folder_is_any_of_type (win, types, 5);
 978                         if (dimmed)
 979                                 modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
 980                 }
 981         }
 982
 983         /* Check diming rules for messages transfer  */
 984         if (!dimmed) {
 985                 dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
 986                 if (dimmed) {
 987                         gchar *message = g_strdup_printf(_("emev_nc_unabletomove_items"),
 988                                                          state->already_opened_msg);
 989                         modest_dimming_rule_set_notification (rule, message);
 990                         g_free(message);
 991                 }
 992         }
 993         if (!dimmed) {
 994                 if (!(folder_view && gtk_widget_is_focus (folder_view)))
 995                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 996
 997         }
 998         if (!dimmed) {
 999                 dimmed = _selected_msg_sent_in_progress (win);
1000                 if (dimmed)
1001                         modest_dimming_rule_set_notification (rule, _("sfil_ib_unable_to_move_selected_items"));
1002         }
1003
1004         return dimmed;
1005 }
1006
1007 gboolean
1008 modest_ui_dimming_rules_on_view_window_move_to (ModestWindow *win, gpointer user_data)
1009 {
1010         ModestDimmingRule *rule = NULL;
1011         gboolean dimmed = FALSE;
1012
1013         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1014         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1015         rule = MODEST_DIMMING_RULE (user_data);
1016
1017         /* Check dimmed rule */
1018         if (!dimmed) {
1019                 dimmed = _transfer_mode_enabled (win);
1020                 if (dimmed)
1021                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1022         }
1023
1024         if (!dimmed) {
1025                 dimmed = _selected_msg_sent_in_progress (win);
1026                 if (dimmed)
1027                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_item"));
1028         }
1029         if (!dimmed) {
1030                 if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1031                         /* The move_to button should be dimmed when viewing an attachment,
1032                          * but should be enabled when viewing a message from the list,
1033                          * or when viewing a search result.
1034                          */
1035                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
1036                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
1037                         }
1038                 }
1039
1040                 if (dimmed)
1041                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_item"));
1042         }
1043
1044         return dimmed;
1045 }
1046
1047 gboolean
1048 modest_ui_dimming_rules_on_find_msg (ModestWindow *win, gpointer user_data)
1049 {
1050         ModestDimmingRule *rule = NULL;
1051         gboolean dimmed = FALSE;
1052
1053         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1054         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1055         rule = MODEST_DIMMING_RULE (user_data);
1056
1057         /* Check dimmed rule */
1058         if (!dimmed) {
1059                 dimmed = _transfer_mode_enabled (win);
1060                 if (dimmed)
1061                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1062         }
1063
1064         return dimmed;
1065 }
1066
1067 gboolean
1068 modest_ui_dimming_rules_on_paste (ModestWindow *win, gpointer user_data)
1069 {
1070         ModestDimmingRule *rule = NULL;
1071         TnyFolderType types[3];
1072         gboolean dimmed = FALSE;
1073
1074         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1075         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1076         rule = MODEST_DIMMING_RULE (user_data);
1077
1078         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1079         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1080         types[2] = TNY_FOLDER_TYPE_SENT;
1081
1082         /* Check dimmed rule */
1083         if (!dimmed) {
1084                 dimmed = _clipboard_is_empty (win);
1085                 if (dimmed)
1086                         modest_dimming_rule_set_notification (rule,
1087                                                               dgettext("hildon-common-strings",
1088                                                                        "ecoc_ib_edwin_nothing_to_paste"));
1089         }
1090         if (!dimmed) {
1091                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1092                 if (dimmed)
1093                         modest_dimming_rule_set_notification (rule,
1094                                                               dgettext("hildon-common-strings",
1095                                                                        "ckct_ib_unable_to_paste_here"));
1096         }
1097         if (!dimmed) {
1098                 dimmed = !_folder_view_has_focus (win);
1099                 if (dimmed)
1100                         modest_dimming_rule_set_notification (rule,
1101                                         dgettext("hildon-common-strings",
1102                                         "ckct_ib_unable_to_paste_here"));
1103         }
1104         if (!dimmed) {
1105                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win), TRUE);
1106                 if (dimmed)
1107                         modest_dimming_rule_set_notification (rule,
1108                                                               dgettext("hildon-common-strings",
1109                                                                        "ckct_ib_unable_to_paste_here"));
1110         }
1111         if (!dimmed) {
1112                 dimmed = _selected_folder_is_same_as_source (win);
1113                 if (dimmed)
1114                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_copy_target_error"));
1115         }
1116         if (!dimmed) {
1117                 dimmed = _selected_folder_has_subfolder_with_same_name (win);
1118                 if (dimmed)
1119                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_copy_target_error"));
1120         }
1121
1122         return dimmed;
1123 }
1124
1125
1126 gboolean
1127 modest_ui_dimming_rules_on_select_all (ModestWindow *win, gpointer user_data)
1128 {
1129         ModestDimmingRule *rule = NULL;
1130         gboolean dimmed = FALSE;
1131         GtkWidget *focused = NULL;
1132
1133         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1134         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1135         rule = MODEST_DIMMING_RULE (user_data);
1136
1137         focused = gtk_window_get_focus (GTK_WINDOW (win));
1138
1139         /* Main window dimming rules */
1140         if (!dimmed && MODEST_IS_MAIN_WINDOW (win))
1141                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1142
1143         if (!dimmed && MODEST_IS_MAIN_WINDOW (win))
1144                 dimmed = _header_view_is_all_selected (MODEST_MAIN_WINDOW(win));
1145
1146         if (!dimmed && GTK_IS_ENTRY (focused)) {
1147                 const gchar *current_text;
1148                 current_text = gtk_entry_get_text (GTK_ENTRY (focused));
1149                 dimmed = ((current_text == NULL) || (current_text[0] == '\0'));
1150         }
1151
1152         if (!dimmed && GTK_IS_TEXT_VIEW (focused)) {
1153                 GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
1154                 dimmed = (gtk_text_buffer_get_char_count (buffer) < 1);
1155         }
1156
1157         if (dimmed && MODEST_IS_ATTACHMENTS_VIEW (focused))
1158                 dimmed = FALSE;
1159         return dimmed;
1160 }
1161
1162 gboolean
1163 modest_ui_dimming_rules_on_view_attachments (ModestWindow *win, gpointer user_data)
1164 {
1165         ModestDimmingRule *rule = NULL;
1166         gboolean dimmed = FALSE;
1167
1168         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1169         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1170         rule = MODEST_DIMMING_RULE (user_data);
1171
1172         /* Check dimmed rule */
1173         if (!dimmed)
1174                 dimmed = _invalid_attach_selected (win, TRUE, TRUE, FALSE, rule);
1175
1176         if (!dimmed) {
1177                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1178                 if (dimmed) {
1179                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1180                 }
1181         }
1182
1183         return dimmed;
1184 }
1185
1186 gboolean
1187 modest_ui_dimming_rules_on_save_attachments (ModestWindow *win, gpointer user_data)
1188 {
1189         ModestDimmingRule *rule = NULL;
1190         gboolean dimmed = FALSE;
1191
1192         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1193         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1194         rule = MODEST_DIMMING_RULE (user_data);
1195
1196         /* Check dimmed rule */
1197         if (!dimmed)
1198                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, FALSE, rule);
1199
1200         if (!dimmed) {
1201                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1202                 if (dimmed) {
1203                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1204                 }
1205         }
1206
1207         return dimmed;
1208 }
1209
1210 gboolean
1211 modest_ui_dimming_rules_on_remove_attachments (ModestWindow *win, gpointer user_data)
1212 {
1213         ModestDimmingRule *rule = NULL;
1214         const DimmedState *state = NULL;
1215         gboolean dimmed = FALSE;
1216
1217         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1218         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1219         rule = MODEST_DIMMING_RULE (user_data);
1220         state = modest_window_get_dimming_state (win);
1221
1222         /* Check in main window if there's only one message selected */
1223         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1224                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW (win), TRUE, rule);
1225         }
1226
1227         /* Check in view window if there's any attachment selected */
1228         if (!dimmed && MODEST_IS_MSG_VIEW_WINDOW (win)) {
1229                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, TRUE, NULL);
1230                 if (dimmed)
1231                         modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1232         }
1233
1234         if (!dimmed) {
1235
1236                 dimmed = _selected_msg_sent_in_progress (win);
1237                 if (dimmed) {
1238                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1239                 }
1240         }
1241
1242         /* cannot purge in editable drafts nor pop folders */
1243         if (!dimmed) {
1244                 dimmed = _invalid_folder_for_purge (win, rule);
1245         }
1246
1247         /* Check if the selected message in main window has attachments */
1248         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1249                 dimmed = !(state->any_has_attachments);
1250                 if (dimmed)
1251                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1252         }
1253
1254         /* Check if all attachments are already purged */
1255         if (!dimmed) {
1256                 dimmed = _purged_attach_selected (win, TRUE, rule);
1257         }
1258
1259         /* Check if the message is already downloaded */
1260         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1261                 dimmed = !_msg_download_completed (MODEST_MAIN_WINDOW (win));
1262                 if (dimmed)
1263                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1264         }
1265
1266
1267         return dimmed;
1268 }
1269
1270 gboolean
1271 modest_ui_dimming_rules_on_undo (ModestWindow *win, gpointer user_data)
1272 {
1273         ModestDimmingRule *rule = NULL;
1274         gboolean dimmed = FALSE;
1275
1276         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1277         rule = MODEST_DIMMING_RULE (user_data);
1278
1279         /* Check dimmed rule */
1280         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1281                 dimmed = _clipboard_is_empty (win);
1282                 if (dimmed)
1283                         modest_dimming_rule_set_notification (rule, "");
1284         }
1285
1286         if (!dimmed && MODEST_IS_MSG_EDIT_WINDOW (win)) {
1287                 dimmed = !modest_msg_edit_window_can_undo (MODEST_MSG_EDIT_WINDOW (win));
1288         }
1289
1290         return dimmed;
1291 }
1292
1293 gboolean
1294 modest_ui_dimming_rules_on_redo (ModestWindow *win, gpointer user_data)
1295 {
1296         ModestDimmingRule *rule = NULL;
1297         gboolean dimmed = FALSE;
1298
1299         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1300         rule = MODEST_DIMMING_RULE (user_data);
1301
1302         /* Check dimmed rule */
1303         if (!dimmed && MODEST_IS_MSG_EDIT_WINDOW (win)) {
1304                 dimmed = !modest_msg_edit_window_can_redo (MODEST_MSG_EDIT_WINDOW (win));
1305         }
1306
1307         return dimmed;
1308 }
1309
1310 gboolean
1311 modest_ui_dimming_rules_on_cut (ModestWindow *win, gpointer user_data)
1312 {
1313         ModestDimmingRule *rule = NULL;
1314         const DimmedState *state = NULL;
1315         gboolean dimmed = FALSE;
1316
1317         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1318         rule = MODEST_DIMMING_RULE (user_data);
1319         state = modest_window_get_dimming_state (win);
1320
1321         /* Check common dimming rules */
1322         if (!dimmed) {
1323                 dimmed = _invalid_clipboard_selected (win, rule);
1324         }
1325
1326         /* Check window specific dimming rules */
1327         if (MODEST_IS_MAIN_WINDOW (win)) {
1328                 /* Get focused widget */
1329                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1330
1331                 if (MODEST_IS_HEADER_VIEW (focused)) {
1332                         if (!dimmed) {
1333                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1334                                 if (dimmed)
1335                                         modest_dimming_rule_set_notification (rule, "");
1336                         }
1337                         if (!dimmed) {
1338                                 dimmed = _selected_msg_sent_in_progress (win);
1339                                 if (dimmed)
1340                                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1341                         }
1342                         if (!dimmed) {
1343                                 dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
1344                                 if(dimmed)
1345                                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1346                         }
1347                 }
1348                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1349                         TnyFolderType types[3];
1350
1351                         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1352                         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1353                         types[2] = TNY_FOLDER_TYPE_SENT;
1354
1355                         /* Apply folder rules */
1356                         if (!dimmed) {
1357                                 dimmed = _selected_folder_not_deletable (MODEST_MAIN_WINDOW(win));
1358                                 if (dimmed)
1359                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1360                         }
1361                         if (!dimmed) {
1362                                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
1363                                 if (dimmed)
1364                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1365                         }
1366                         if (!dimmed) {
1367                                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1368                                 if (dimmed)
1369                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1370                         }
1371                 }
1372         }
1373
1374         return dimmed;
1375 }
1376
1377 gboolean
1378 modest_ui_dimming_rules_on_copy (ModestWindow *win, gpointer user_data)
1379 {
1380         ModestDimmingRule *rule = NULL;
1381         const DimmedState *state = NULL;
1382         gboolean dimmed = FALSE;
1383
1384         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1385         rule = MODEST_DIMMING_RULE (user_data);
1386         state = modest_window_get_dimming_state (win);
1387
1388         /* Check common dimming rules */
1389         if (!dimmed) {
1390                 dimmed = _invalid_clipboard_selected (win, rule);
1391         }
1392
1393         /* Check window specific dimming rules */
1394         if (MODEST_IS_MAIN_WINDOW (win)) {
1395                 /* Get focused widget */
1396                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1397
1398                 if (MODEST_IS_HEADER_VIEW (focused)) {
1399                         if (!dimmed) {
1400                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1401                                 if (dimmed)
1402                                         modest_dimming_rule_set_notification (rule, "");
1403                         }
1404                         if (!dimmed) {
1405                                 dimmed = _selected_msg_sent_in_progress (win);
1406                                 if (dimmed)
1407                                         modest_dimming_rule_set_notification (rule, _(""));
1408                         }
1409                         if (!dimmed) {
1410                                 dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
1411                                 if(dimmed)
1412                                         modest_dimming_rule_set_notification (rule, _(""));
1413                         }
1414                 }
1415                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1416                         TnyFolderType types[3];
1417
1418                         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1419                         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1420                         types[2] = TNY_FOLDER_TYPE_SENT;
1421
1422                         if (!dimmed) {
1423                                 dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
1424                                 if (dimmed)
1425                                         modest_dimming_rule_set_notification (rule, _(""));
1426                         }
1427                         if (!dimmed) {
1428                                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1429                                 if (dimmed)
1430                                         modest_dimming_rule_set_notification (rule, _(""));
1431                         }
1432                 }
1433         }
1434
1435         return dimmed;
1436 }
1437
1438 gboolean
1439 modest_ui_dimming_rules_on_set_style (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
1451         /* Check common dimming rules */
1452         if (!dimmed) {
1453                 ModestMsgEditFormat format;
1454                 format = modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
1455
1456                 dimmed = (format != MODEST_MSG_EDIT_FORMAT_HTML);
1457                 if (dimmed)
1458                         modest_dimming_rule_set_notification (rule, _("mcen_ib_item_unavailable_plaintext"));
1459         }
1460
1461         if (!dimmed) {
1462                 GtkWidget *body;
1463                 body = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1464                                                                 MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1465
1466                 dimmed = ((body == NULL)||(!gtk_widget_is_focus (body)));
1467                 if (dimmed)
1468                         modest_dimming_rule_set_notification (rule, _("mcen_ib_move_cursor_to_message"));
1469         }
1470
1471
1472         return dimmed;
1473 }
1474
1475 gboolean
1476 modest_ui_dimming_rules_on_zoom (ModestWindow *win, gpointer user_data)
1477 {
1478         ModestDimmingRule *rule = NULL;
1479         const DimmedState *state = NULL;
1480         gboolean dimmed = FALSE;
1481
1482         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1483         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1484         rule = MODEST_DIMMING_RULE (user_data);
1485         state = modest_window_get_dimming_state (win);
1486
1487         if (!dimmed) {
1488                 GtkWidget *body;
1489                 body = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1490                                                                 MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1491
1492                 dimmed = ((body == NULL)||(!gtk_widget_is_focus (body)));
1493                 if (dimmed)
1494                         modest_dimming_rule_set_notification (rule, _("mcen_ib_move_cursor_to_message"));
1495         }
1496
1497
1498         return dimmed;
1499 }
1500
1501 gboolean
1502 modest_ui_dimming_rules_on_editor_paste (ModestWindow *win, gpointer user_data)
1503 {
1504         ModestDimmingRule *rule = NULL;
1505         const DimmedState *state = NULL;
1506         gboolean dimmed = FALSE;
1507         GtkWidget *focused = NULL;
1508
1509         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1510         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1511         rule = MODEST_DIMMING_RULE (user_data);
1512         state = modest_window_get_dimming_state (win);
1513
1514         focused = gtk_window_get_focus (GTK_WINDOW (win));
1515
1516         if (!dimmed) {
1517                 dimmed = MODEST_IS_ATTACHMENTS_VIEW (focused);
1518         }
1519
1520         if (!dimmed) {
1521                 dimmed = GTK_IS_TOGGLE_BUTTON (focused);
1522         }
1523
1524         if (!dimmed) {
1525                 ModestEmailClipboard *e_clipboard = modest_runtime_get_email_clipboard ();
1526                 const gchar *clipboard_text = modest_msg_edit_window_get_clipboard_text (MODEST_MSG_EDIT_WINDOW (win));
1527
1528                 dimmed = modest_email_clipboard_cleared (e_clipboard) &&
1529                   ((clipboard_text == NULL) || (clipboard_text[0] == '\0'));
1530         }
1531
1532         return dimmed;
1533 }
1534
1535 gboolean
1536 modest_ui_dimming_rules_on_editor_remove_attachment (ModestWindow *win, gpointer user_data)
1537 {
1538         ModestDimmingRule *rule = NULL;
1539         const DimmedState *state = NULL;
1540         gboolean dimmed = FALSE;
1541
1542         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1543         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1544         rule = MODEST_DIMMING_RULE (user_data);
1545         state = modest_window_get_dimming_state (win);
1546
1547         if (!dimmed) {
1548                 TnyList *selected_attachments = NULL;
1549                 gint n_att_selected = 0;
1550                 GtkWidget *attachments_view;
1551                 attachments_view = modest_msg_edit_window_get_child_widget (
1552                         MODEST_MSG_EDIT_WINDOW (win),
1553                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_ATTACHMENTS);
1554
1555                 selected_attachments = modest_attachments_view_get_selection (
1556                         MODEST_ATTACHMENTS_VIEW (attachments_view));
1557                 n_att_selected = tny_list_get_length (selected_attachments);
1558                 g_object_unref (selected_attachments);
1559
1560                 dimmed = (n_att_selected < 1);
1561         }
1562
1563         return dimmed;
1564 }
1565
1566 gboolean
1567 modest_ui_dimming_rules_on_send (ModestWindow *win, gpointer user_data)
1568 {
1569         ModestDimmingRule *rule = NULL;
1570         const DimmedState *state = NULL;
1571         gboolean dimmed = FALSE;
1572
1573         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1574         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1575         rule = MODEST_DIMMING_RULE (user_data);
1576         state = modest_window_get_dimming_state (win);
1577
1578         if (!dimmed) {
1579                 GtkWidget *subject_field, *body_field;
1580                 GtkTextBuffer *body_buffer;
1581                 const gchar *subject = NULL;
1582                 body_field = modest_msg_edit_window_get_child_widget (
1583                         MODEST_MSG_EDIT_WINDOW (win),
1584                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1585                 subject_field = modest_msg_edit_window_get_child_widget (
1586                         MODEST_MSG_EDIT_WINDOW (win),
1587                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_SUBJECT);
1588                 body_buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (body_field));
1589                 subject = gtk_entry_get_text (GTK_ENTRY (subject_field));
1590
1591                 dimmed = ((subject == NULL || subject[0] == '\0')
1592                           || (gtk_text_buffer_get_char_count(body_buffer) == 0));
1593                 if (dimmed)
1594                         modest_dimming_rule_set_notification (rule, _("mcen_ib_subject_or_body_not_modified"));
1595         }
1596
1597         if (!dimmed) {
1598                 GtkWidget *to_field, *cc_field, *bcc_field;
1599                 GtkTextBuffer * to_buffer, *cc_buffer, *bcc_buffer;
1600                 cc_field = modest_msg_edit_window_get_child_widget (
1601                         MODEST_MSG_EDIT_WINDOW (win),
1602                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_CC);
1603                 to_field = modest_msg_edit_window_get_child_widget (
1604                         MODEST_MSG_EDIT_WINDOW (win),
1605                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_TO);
1606                 bcc_field = modest_msg_edit_window_get_child_widget (
1607                         MODEST_MSG_EDIT_WINDOW (win),
1608                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BCC);
1609                 to_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (to_field));
1610                 cc_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (cc_field));
1611                 bcc_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (bcc_field));
1612
1613                 dimmed = ((gtk_text_buffer_get_char_count (to_buffer) +
1614                            gtk_text_buffer_get_char_count (cc_buffer) +
1615                            gtk_text_buffer_get_char_count (bcc_buffer)) == 0);
1616                 if (dimmed)
1617                         modest_dimming_rule_set_notification (rule, _("mcen_ib_add_recipients_first"));
1618         }
1619
1620         return dimmed;
1621 }
1622
1623 gboolean
1624 modest_ui_dimming_rules_on_view_previous (ModestWindow *win, gpointer user_data)
1625 {
1626         ModestDimmingRule *rule = NULL;
1627         gboolean dimmed = FALSE;
1628
1629         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1630         rule = MODEST_DIMMING_RULE (user_data);
1631
1632         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1633
1634         /* Check dimmed rule */
1635         if (!dimmed) {
1636                 dimmed = _transfer_mode_enabled (win);
1637                 if (dimmed)
1638                         modest_dimming_rule_set_notification (
1639                                         rule, _("mail_ib_notavailable_downloading"));
1640         }
1641         if (!dimmed) {
1642                 dimmed = modest_msg_view_window_first_message_selected (
1643                                 MODEST_MSG_VIEW_WINDOW(win));
1644                 modest_dimming_rule_set_notification (rule, NULL);
1645         }
1646
1647         return dimmed;
1648 }
1649
1650 gboolean
1651 modest_ui_dimming_rules_on_view_next (ModestWindow *win, gpointer user_data)
1652 {
1653         ModestDimmingRule *rule = NULL;
1654         gboolean dimmed = FALSE;
1655
1656         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1657         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1658         rule = MODEST_DIMMING_RULE (user_data);
1659
1660         /* Check dimmed rule */
1661         if (!dimmed) {
1662                 dimmed = _transfer_mode_enabled (win);
1663                 if (dimmed)
1664                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1665         }
1666         if (!dimmed) {
1667                 dimmed = modest_msg_view_window_last_message_selected (MODEST_MSG_VIEW_WINDOW (win));
1668                 modest_dimming_rule_set_notification (rule, NULL);
1669         }
1670
1671         return dimmed;
1672 }
1673
1674
1675 gboolean
1676 modest_ui_dimming_rules_on_tools_smtp_servers (ModestWindow *win, gpointer user_data)
1677 {
1678         const gboolean dimmed =
1679                 !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
1680                         TRUE);
1681
1682         return dimmed;
1683 }
1684
1685 gboolean
1686 modest_ui_dimming_rules_on_cancel_sending (ModestWindow *win, gpointer user_data)
1687 {
1688         ModestDimmingRule *rule = NULL;
1689         TnyFolderType types[1];
1690         const DimmedState *state = NULL;
1691         gboolean dimmed = FALSE;
1692
1693         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1694         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1695         rule = MODEST_DIMMING_RULE (user_data);
1696         state = modest_window_get_dimming_state (win);
1697
1698         types[0] = TNY_FOLDER_TYPE_OUTBOX;
1699
1700         /* Check dimmed rules */
1701         if (!dimmed) {
1702                 dimmed = !_selected_folder_is_any_of_type (win, types, 1);
1703                 if (dimmed)
1704                         modest_dimming_rule_set_notification (rule, "");
1705         }
1706         if (!dimmed) {
1707                 dimmed = !_sending_in_progress (win);
1708                 if (dimmed)
1709                         modest_dimming_rule_set_notification (rule, "");
1710         }
1711
1712         return dimmed;
1713 }
1714
1715 gboolean
1716 modest_ui_dimming_rules_on_csm_cancel_sending (ModestWindow *win, gpointer user_data)
1717 {
1718         ModestDimmingRule *rule = NULL;
1719         TnyFolderType types[1];
1720         const DimmedState *state = NULL;
1721         gboolean dimmed = FALSE;
1722
1723         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1724         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1725         rule = MODEST_DIMMING_RULE (user_data);
1726         state = modest_window_get_dimming_state (win);
1727
1728         types[0] = TNY_FOLDER_TYPE_OUTBOX;
1729
1730         /* Check dimmed rules */
1731         if (!dimmed) {
1732                 dimmed = !_selected_folder_is_any_of_type (win, types, 1);
1733                 if (dimmed)
1734                         modest_dimming_rule_set_notification (rule, "");
1735         }
1736         if (!dimmed) {
1737                 dimmed = !_sending_in_progress (win);
1738                 if (dimmed)
1739                         modest_dimming_rule_set_notification (rule, "");
1740         }
1741
1742         return dimmed;
1743 }
1744
1745 gboolean
1746 modest_ui_dimming_rules_on_send_receive (ModestWindow *win, gpointer user_data)
1747 {
1748         ModestDimmingRule *rule = NULL;
1749         gboolean dimmed = FALSE;
1750
1751         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1752         rule = MODEST_DIMMING_RULE (user_data);
1753
1754         /* Check dimmed rule */
1755         if (!dimmed) {
1756                 dimmed = !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
1757                                                           TRUE);
1758                 if (dimmed)
1759                         modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
1760         }
1761
1762         return dimmed;
1763 }
1764
1765 gboolean
1766 modest_ui_dimming_rules_on_send_receive_all (ModestWindow *win, gpointer user_data)
1767 {
1768         ModestDimmingRule *rule = NULL;
1769         gboolean dimmed = FALSE;
1770
1771         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1772         rule = MODEST_DIMMING_RULE (user_data);
1773
1774         /* Check dimmed rule */
1775         if (!dimmed) {
1776                 GSList *account_names = modest_account_mgr_account_names (modest_runtime_get_account_mgr (), TRUE);
1777                 if (g_slist_length (account_names) <= 1)
1778                         dimmed = TRUE;
1779                 if (dimmed)
1780                         modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
1781
1782                 modest_account_mgr_free_account_names (account_names);
1783         }
1784
1785         return dimmed;
1786 }
1787
1788 gboolean
1789 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
1790 {
1791         ModestDimmingRule *rule = NULL;
1792         gboolean dimmed = FALSE;
1793         GtkWidget *focused = NULL;
1794
1795         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1796         rule = MODEST_DIMMING_RULE (user_data);
1797         focused = gtk_window_get_focus (GTK_WINDOW (win));
1798
1799         dimmed = !focused;
1800
1801         if (!dimmed) {
1802                 gchar *selection = NULL;
1803                 if (GTK_IS_TEXT_VIEW (focused)) {
1804                         GtkTextIter start, end;
1805                         GtkTextBuffer *buffer = NULL;
1806                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
1807                         if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end)) {
1808                                 selection = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
1809                         }
1810                 } else if (GTK_IS_LABEL (focused)) {
1811                         gint start, end;
1812                         if (gtk_label_get_selection_bounds (GTK_LABEL (focused), &start, &end)) {
1813                                 const gchar *start_offset;
1814                                 start_offset = gtk_label_get_text (GTK_LABEL (focused));
1815                                 start_offset = g_utf8_offset_to_pointer (start_offset, start);
1816                                 selection = g_new0 (gchar, end - start + 1);
1817                                 g_utf8_strncpy (selection, start_offset, end - start);
1818                         }
1819                 } else {
1820                         gboolean do_check = TRUE;
1821                         GtkClipboard *clipboard;
1822                         if (GTK_IS_HTML (focused)) {
1823                                 const gchar *sel;
1824                                 int len = -1;
1825                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
1826                                 do_check = !((sel == NULL) || (sel[0] == '\0'));
1827                         }
1828                         if (do_check) {
1829                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
1830                                 selection = gtk_clipboard_wait_for_text (clipboard);
1831                         } else {
1832                                 selection = NULL;
1833                         }
1834                 }
1835                 dimmed = !((selection != NULL) && (modest_text_utils_validate_recipient (selection, NULL)));
1836         }
1837
1838         return dimmed;
1839 }
1840
1841 /* *********************** static utility functions ******************** */
1842
1843
1844 static gboolean
1845 _selected_folder_not_writeable (ModestMainWindow *win,
1846                                 gboolean for_paste)
1847 {
1848         GtkWidget *folder_view = NULL;
1849         TnyFolderStore *parent_folder = NULL;
1850         ModestEmailClipboard *clipboard = NULL;
1851         ModestTnyFolderRules rules;
1852         gboolean is_local_acc = FALSE;
1853         gboolean xfer_folders = FALSE;
1854         gboolean result = FALSE;
1855
1856         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1857
1858         /* Get folder view */
1859         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1860                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1861         /* If no folder view, always dimmed */
1862         if (!folder_view)
1863                 return TRUE;
1864
1865         /* Get selected folder as parent of new folder to create */
1866         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1867         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1868                 /* If it's the local account and its transfering folders, then do not dim */
1869                 if (TNY_IS_ACCOUNT (parent_folder)) {
1870                         is_local_acc = modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder));
1871                         if (for_paste) {
1872                                 clipboard = modest_runtime_get_email_clipboard ();
1873                                 xfer_folders = modest_email_clipboard_folder_copied (clipboard);
1874                         }
1875                 }
1876
1877                 if (for_paste)
1878                         result = !(is_local_acc && xfer_folders);
1879                 else
1880                         result = !is_local_acc;
1881                 goto frees;
1882         }
1883
1884         /* Check dimmed rule */
1885         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1886         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
1887
1888         /* free */
1889  frees:
1890         if (parent_folder != NULL)
1891                 g_object_unref (parent_folder);
1892
1893         return result;
1894 }
1895
1896 static gboolean
1897 _selected_folder_not_deletable (ModestMainWindow *win)
1898 {
1899         GtkWidget *folder_view = NULL;
1900         TnyFolderStore *parent_folder = NULL;
1901         ModestTnyFolderRules rules;
1902         gboolean result = FALSE;
1903
1904         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1905
1906         /* Get folder view */
1907         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1908                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1909         /* If no folder view, always dimmed */
1910         if (!folder_view)
1911                 return TRUE;
1912
1913         /* Get selected folder as parent of new folder to create */
1914         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1915         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1916                 result = TRUE;
1917                 goto frees;
1918         }
1919
1920         /* Check dimmed rule */
1921         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1922         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_DELETABLE;
1923
1924         /* free */
1925  frees:
1926         if (parent_folder != NULL)
1927                 g_object_unref (parent_folder);
1928
1929         return result;
1930 }
1931
1932 static gboolean
1933 _selected_folder_not_moveable (ModestMainWindow *win)
1934 {
1935         GtkWidget *folder_view = NULL;
1936         TnyFolderStore *parent_folder = NULL;
1937         ModestTnyFolderRules rules;
1938         gboolean result = FALSE;
1939
1940         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1941
1942         /* Get folder view */
1943         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1944                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1945         /* If no folder view, always dimmed */
1946         if (!folder_view)
1947                 return TRUE;
1948
1949         /* Get selected folder as parent of new folder to create */
1950         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1951         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1952                 result = TRUE;
1953                 goto frees;
1954         }
1955
1956         /* Check dimmed rule */
1957         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1958         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE;
1959
1960         /* free */
1961  frees:
1962         if (parent_folder != NULL)
1963                 g_object_unref (parent_folder);
1964
1965         return result;
1966 }
1967
1968 static gboolean
1969 _selected_folder_not_renameable (ModestMainWindow *win)
1970 {
1971         GtkWidget *folder_view = NULL;
1972         TnyFolderStore *parent_folder = NULL;
1973         ModestTnyFolderRules rules;
1974         gboolean result = FALSE;
1975
1976         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1977
1978         /* Get folder view */
1979         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1980                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1981         /* If no folder view, always dimmed */
1982         if (!folder_view)
1983                 return TRUE;
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 && TNY_IS_FOLDER(parent_folder))) {
1988                 result = TRUE;
1989                 goto frees;
1990         }
1991
1992         /* Check dimmed rule */
1993         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1994         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_RENAMEABLE;
1995
1996         /* free */
1997  frees:
1998         if (parent_folder != NULL)
1999                 g_object_unref (parent_folder);
2000
2001         return result;
2002 }
2003
2004 static gboolean
2005 _selected_folder_is_root_or_inbox (ModestMainWindow *win)
2006 {
2007         TnyFolderType types[2];
2008         gboolean result = FALSE;
2009
2010         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2011
2012         types[0] = TNY_FOLDER_TYPE_ROOT;
2013         types[1] = TNY_FOLDER_TYPE_INBOX;
2014
2015         /* Check folder type */
2016         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 2);
2017
2018         /* Check pop and MMC accounts */
2019         if (!result) {
2020                 result = _selected_folder_is_MMC_or_POP_root (win);
2021         }
2022
2023         return result;
2024 }
2025
2026
2027 static gboolean
2028 _selected_folder_is_root (ModestMainWindow *win)
2029 {
2030         TnyFolderType types[1];
2031         gboolean result = FALSE;
2032
2033         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2034
2035         /* All accounts are root items: */
2036         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2037                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2038         if (folder_view) {
2039                 gboolean is_account = FALSE;
2040                 TnyFolderStore *folder_store =
2041                         modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2042                 if (folder_store) {
2043                         is_account = TNY_IS_ACCOUNT (folder_store);
2044                         g_object_unref (folder_store);
2045                         folder_store = NULL;
2046                 }
2047
2048                 if (is_account)
2049                         return TRUE;
2050         }
2051
2052         /* Try something more precise: */
2053         types[0] = TNY_FOLDER_TYPE_ROOT;
2054
2055         /* Check folder type */
2056         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 1);
2057
2058         /* Check pop and MMC accounts */
2059         if (!result) {
2060                 result = _selected_folder_is_MMC_or_POP_root (win);
2061         }
2062
2063         return result;
2064 }
2065
2066 static gboolean
2067 _selected_folder_is_MMC_or_POP_root (ModestMainWindow *win)
2068 {
2069         GtkWidget *folder_view = NULL;
2070         TnyFolderStore *parent_folder = NULL;
2071         gboolean result = FALSE;
2072
2073         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2074                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2075         if (!folder_view)
2076                 return FALSE;
2077
2078         /* Get selected folder as parent of new folder to create */
2079         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2080         if (!parent_folder)
2081                 return TRUE;
2082
2083         if (TNY_IS_ACCOUNT (parent_folder)) {
2084                 /* If it's the local account then do not dim */
2085                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
2086                         result = FALSE;
2087                 } else {
2088                                 /* If it's the MMC root folder then dim it */
2089                         if (!strcmp (tny_account_get_id (TNY_ACCOUNT (parent_folder)), MODEST_MMC_ACCOUNT_ID)) {
2090                                         result = TRUE;
2091                         } else {
2092                                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
2093                                 /* If it's POP then dim */
2094                                 result = (modest_protocol_info_get_transport_store_protocol (proto_str) ==
2095                                                   MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
2096                         }
2097                 }
2098         }
2099         g_object_unref (parent_folder);
2100
2101         return result;
2102 }
2103
2104 static gboolean
2105 _header_view_is_all_selected (ModestMainWindow *win)
2106 {
2107         const DimmedState *state = NULL;
2108
2109         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2110
2111         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2112
2113         return state->all_selected;
2114 }
2115
2116 static gboolean
2117 _selected_folder_is_empty (ModestMainWindow *win)
2118 {
2119         GtkWidget *folder_view = NULL;
2120         TnyFolderStore *folder = NULL;
2121         gboolean result = FALSE;
2122
2123         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2124
2125         /* Get folder view */
2126         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2127                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2128         /* If no folder view, always dimmed */
2129         if (!folder_view)
2130                 return TRUE;
2131
2132         /* Get selected folder as parent of new folder to create */
2133         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2134         if (!(folder && TNY_IS_FOLDER(folder))) {
2135                 if (folder)
2136                         g_object_unref (folder);
2137                 return TRUE;
2138         }
2139
2140         /* Check folder type */
2141         result = tny_folder_get_all_count (TNY_FOLDER (folder)) == 0;
2142
2143         /* free */
2144         g_object_unref (folder);
2145
2146         return result;
2147 }
2148
2149 static gboolean
2150 _folder_view_has_focus (ModestWindow *win)
2151 {
2152         GtkWidget *folder_view = NULL;
2153
2154         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2155
2156         /* Get folder view */
2157         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2158                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2159         if (!folder_view)
2160                 return FALSE;
2161
2162         if (gtk_widget_is_focus(folder_view))
2163                 return TRUE;
2164
2165         return FALSE;
2166 }
2167
2168 static gboolean
2169 _selected_folder_is_same_as_source (ModestWindow *win)
2170 {
2171         ModestEmailClipboard *clipboard = NULL;
2172         GtkWidget *folder_view = NULL;
2173         TnyFolderStore *folder = NULL;
2174         gboolean result = FALSE;
2175
2176         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2177
2178         /* Get folder view */
2179         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2180                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2181         if (!folder_view)
2182                 return FALSE;
2183
2184         /* Get selected folder as destination folder */
2185         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2186         if (!(folder && TNY_IS_FOLDER(folder))) {
2187                 result = FALSE;
2188                 goto frees;
2189         }
2190
2191         /* Check clipboard is cleared */
2192         clipboard = modest_runtime_get_email_clipboard ();
2193         if (modest_email_clipboard_cleared (clipboard)) {
2194                 result = FALSE;
2195                 goto frees;
2196         }
2197
2198         /* Check source folder */
2199         result = modest_email_clipboard_check_source_folder (clipboard, TNY_FOLDER (folder));
2200
2201         /* Free */
2202  frees:
2203         g_object_unref (folder);
2204
2205         return result;
2206 }
2207
2208 static gboolean
2209 _selected_folder_is_any_of_type (ModestWindow *win,
2210                                  TnyFolderType types[],
2211                                  guint ntypes)
2212 {
2213         GtkWidget *folder_view = NULL;
2214         TnyFolderStore *folder = NULL;
2215         TnyFolderType folder_type;
2216         guint i=0;
2217         gboolean result = FALSE;
2218
2219         /*Get current folder */
2220         if (MODEST_IS_MAIN_WINDOW(win)) {
2221
2222                 /* Get folder view */
2223                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2224                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2225                 /* If no folder view, always dimmed */
2226                 if (!folder_view)
2227                         return FALSE;
2228
2229                 /* Get selected folder as parent of new folder to create */
2230                 folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2231
2232                 if (!(folder && TNY_IS_FOLDER(folder))) {
2233                         if (folder)
2234                                 g_object_unref (folder);
2235                         return FALSE;
2236                 }
2237
2238                 /* Check folder type */
2239                 result = _folder_is_any_of_type (TNY_FOLDER(folder), types, ntypes);
2240         }
2241         else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2242                 folder_type = modest_msg_view_window_get_folder_type (MODEST_MSG_VIEW_WINDOW (win));
2243                 for (i=0; i < ntypes; i++) {
2244                         result = result || folder_type == types[i];
2245                 }
2246         }
2247
2248
2249         /* free */
2250         g_object_unref (folder);
2251
2252         return result;
2253 }
2254
2255 static gboolean
2256 _folder_is_any_of_type (TnyFolder *folder,
2257                         TnyFolderType types[],
2258                         guint ntypes)
2259 {
2260         TnyFolderType folder_type;
2261         gboolean result = FALSE;
2262         guint i;
2263
2264         g_return_val_if_fail (TNY_IS_FOLDER(folder), FALSE);
2265
2266         /* Get folder type */
2267         folder_type = modest_tny_folder_guess_folder_type (folder);
2268         if (folder_type == TNY_FOLDER_TYPE_INVALID)
2269                 g_warning ("%s: BUG: TNY_FOLDER_TYPE_INVALID", __FUNCTION__);
2270
2271         /* Check foler type */
2272         for (i=0; i < ntypes; i++) {
2273                 result = result || folder_type == types[i];
2274         }
2275
2276         return result;
2277 }
2278
2279 static gboolean
2280 _clipboard_is_empty (ModestWindow *win)
2281 {
2282         gboolean result = FALSE;
2283
2284         if (MODEST_IS_MAIN_WINDOW (win)) {
2285                 ModestEmailClipboard *clipboard = NULL;
2286                 clipboard = modest_runtime_get_email_clipboard ();
2287                 if (modest_email_clipboard_cleared (clipboard))
2288                  result = TRUE;
2289         }
2290
2291         return result;
2292 }
2293
2294 static gboolean
2295 _invalid_clipboard_selected (ModestWindow *win,
2296                              ModestDimmingRule *rule)
2297 {
2298         const DimmedState *state = NULL;
2299         gboolean result = FALSE;
2300         GtkWidget *focused = NULL;
2301
2302         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2303         state = modest_window_get_dimming_state (win);
2304         /* Get focuesed widget */
2305         focused = gtk_window_get_focus (GTK_WINDOW (win));
2306
2307         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
2308                 gboolean has_selection = FALSE;
2309                 if (GTK_IS_TEXT_VIEW (focused)) {
2310                         GtkTextBuffer *buffer = NULL;
2311                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2312                         has_selection = gtk_text_buffer_get_has_selection (GTK_TEXT_BUFFER (buffer));
2313                 } else if (GTK_IS_EDITABLE (focused)) {
2314                         has_selection = gtk_editable_get_selection_bounds (GTK_EDITABLE (focused), NULL, NULL);
2315                 }
2316                 result = !has_selection;
2317         } else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2318                 if (focused) {
2319                         MODEST_DEBUG_BLOCK (g_message ("FOCUSED %s", g_type_name (G_TYPE_FROM_INSTANCE (focused))););
2320                         if (GTK_IS_LABEL (focused) &&
2321                             !gtk_label_get_selection_bounds (GTK_LABEL (focused), NULL, NULL)) {
2322                                 result = TRUE;
2323                         } else if (GTK_IS_TEXT_VIEW (focused)) {
2324                                 GtkTextBuffer *buffer;
2325                                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2326                                 result = !gtk_text_buffer_get_has_selection (buffer);
2327                         } else if (GTK_IS_HTML (focused)) {
2328                                 const gchar *sel;
2329                                 int len = -1;
2330                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
2331                                 result = ((sel == NULL) || (sel[0] == '\0'));
2332                         } else if (MODEST_IS_ATTACHMENTS_VIEW (focused)) {
2333                                 result = TRUE;
2334                         } else {
2335                                 GtkClipboard *clipboard;
2336                                 gchar *selection;
2337
2338                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
2339                                 /* Get clipboard selection*/
2340                                 selection = gtk_clipboard_wait_for_text (clipboard);
2341                                 /* Check dimming */
2342                                 result = (selection == NULL);
2343                                 g_free (selection);
2344                         }
2345                 } else {
2346                         result = TRUE;
2347                 }
2348
2349                 if (result)
2350                         modest_dimming_rule_set_notification (rule, "");
2351
2352         }
2353         else if (MODEST_IS_MAIN_WINDOW (win)) {
2354                 /* Check dimming */
2355                 result = state->n_selected == 0;
2356                 if (result)
2357                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2358         }
2359
2360         return result;
2361 }
2362
2363
2364 static gboolean
2365 _invalid_attach_selected (ModestWindow *win,
2366                           gboolean unique,
2367                           gboolean for_view,
2368                           gboolean for_remove,
2369                           ModestDimmingRule *rule)
2370 {
2371         TnyList *attachments;
2372         gint n_selected;
2373         TnyHeaderFlags flags;
2374         gboolean nested_attachments = FALSE;
2375         gboolean selected_messages = FALSE;
2376         const DimmedState *state = NULL;
2377         gboolean result = FALSE;
2378
2379         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2380         state = modest_window_get_dimming_state (win);
2381
2382         if (MODEST_IS_MAIN_WINDOW (win)) {
2383                 flags = TNY_HEADER_FLAG_ATTACHMENTS;
2384                 if (!result)
2385                         result = !state->any_has_attachments;
2386         }
2387         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2388
2389                 /* Get selected atachments */
2390                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2391                 n_selected = tny_list_get_length (attachments);
2392
2393                 /* Check unique */
2394                 if (!result) {
2395                         if (unique)
2396                                 result = n_selected != 1;
2397                         else
2398
2399                                 result = n_selected < 1;
2400                 }
2401
2402                 /* Check attached type (view operation not required) */
2403                 if (!result && !for_view)  {
2404                         TnyIterator *iter;
2405                         iter = tny_list_create_iterator (attachments);
2406                         while (!tny_iterator_is_done (iter) && !result) {
2407                                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2408                                 TnyList *nested_list = tny_simple_list_new ();
2409                                 if (!for_remove && TNY_IS_MSG (mime_part)) {
2410                                         selected_messages = TRUE;
2411                                         result = TRUE;
2412                                 }
2413                                 tny_mime_part_get_parts (mime_part, nested_list);
2414                                 if (!for_remove && tny_list_get_length (nested_list) > 0) {
2415                                         nested_attachments = TRUE;
2416                                         result = TRUE;
2417                                 }
2418                                 g_object_unref (nested_list);
2419                                 g_object_unref (mime_part);
2420                                 tny_iterator_next (iter);
2421                         }
2422                         g_object_unref (iter);
2423                 }
2424
2425                 /* Set notifications */
2426                 if (result && rule != NULL) {
2427                         if (selected_messages) {
2428                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_save_attach_mail"));
2429                         } else if (nested_attachments) {
2430                                 modest_dimming_rule_set_notification (rule, _("FIXME:unable to save attachments with nested elements"));
2431                         } else if (n_selected == 0) {
2432                                 modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
2433                         } else if (unique) {
2434                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_display_more"));
2435                         }
2436                 }
2437
2438                 /* Free */
2439                 g_object_unref (attachments);
2440         }
2441
2442         return result;
2443 }
2444
2445 static gboolean
2446 _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule)
2447 {
2448         TnyList *attachments = NULL;
2449         TnyIterator *iter;
2450         gint purged = 0;
2451         gint n_attachments = 0;
2452         gboolean result = FALSE;
2453
2454         /* This should check if _all_ the attachments are already purged. If only some
2455          * of them are purged, then it does not cause dim as there's a confirmation dialog
2456          * for removing only local attachments */
2457
2458         /* Get selected atachments */
2459         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2460                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2461         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2462                 /* If we're in main window, we won't know if there are already purged attachments */
2463                 return FALSE;
2464         }
2465
2466         if (attachments == NULL)
2467                 return FALSE;
2468
2469         if (tny_list_get_length (attachments)) {
2470                 g_object_unref (attachments);
2471                 return FALSE;
2472         }
2473
2474         iter = tny_list_create_iterator (attachments);
2475         while (!tny_iterator_is_done (iter)) {
2476                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2477                 if (tny_mime_part_is_purged (mime_part)) {
2478                         purged++;
2479                 }
2480                 n_attachments++;
2481                 g_object_unref (mime_part);
2482                 tny_iterator_next (iter);
2483         }
2484         g_object_unref (iter);
2485
2486         /* Free */
2487         g_object_unref (attachments);
2488
2489         if (all)
2490                 result = (purged == n_attachments);
2491         else
2492                 result = (purged > 0);
2493
2494         /* This string no longer exists, refer to NB#75415 for more info
2495         if (result && (rule != NULL))
2496                 modest_dimming_rule_set_notification (rule, _("mail_ib_attachment_already_purged"));
2497         */
2498
2499         return result;
2500 }
2501
2502 static gboolean
2503 _invalid_msg_selected (ModestMainWindow *win,
2504                        gboolean unique,
2505                        ModestDimmingRule *rule)
2506 {
2507         GtkWidget *folder_view = NULL;
2508         const DimmedState *state = NULL;
2509         gboolean result = FALSE;
2510
2511         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2512         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (rule), FALSE);
2513         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2514
2515         /* Get folder view to check focus */
2516         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2517                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2518
2519         /* Check dimmed rule (TODO: check focus on widgets */
2520         if (!result) {
2521                 result = ((state->n_selected == 0 ) ||
2522                           (gtk_widget_is_focus (folder_view)));
2523                 if (result)
2524                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2525         }
2526         if (!result && unique) {
2527                 result = state->n_selected > 1;
2528                 if (result)
2529                         modest_dimming_rule_set_notification (rule, _("mcen_ib_select_one_message"));
2530         }
2531
2532         return result;
2533 }
2534
2535
2536 static gboolean
2537 _msg_download_in_progress (ModestWindow *win)
2538 {
2539         gboolean result = FALSE;
2540
2541         g_return_val_if_fail (MODEST_IS_WINDOW (win), FALSE);
2542
2543         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2544                 result = modest_msg_view_window_toolbar_on_transfer_mode (MODEST_MSG_VIEW_WINDOW(win));
2545         }
2546         else if (MODEST_IS_MAIN_WINDOW (win)) {
2547                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW(win));
2548         }
2549
2550         return result;
2551 }
2552
2553 static gboolean
2554 _msg_download_completed (ModestMainWindow *win)
2555 {
2556         const DimmedState *state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2557         return state->any_marked_as_cached;
2558 }
2559
2560 static void
2561 fill_list_of_caches (gpointer key, gpointer value, gpointer userdata)
2562 {
2563         GSList **send_queues = (GSList **) userdata;
2564         *send_queues = g_slist_prepend (*send_queues, value);
2565 }
2566
2567 static gboolean
2568 _selected_msg_sent_in_progress (ModestWindow *win)
2569 {
2570         const DimmedState *state = modest_window_get_dimming_state (win);
2571         return state->sent_in_progress;
2572 }
2573
2574
2575 static gboolean
2576 _sending_in_progress (ModestWindow *win)
2577 {
2578         GHashTable *send_queue_cache = NULL;
2579         ModestCacheMgr *cache_mgr = NULL;
2580         ModestTnySendQueue *send_queue = NULL;
2581         GSList *send_queues = NULL, *node = NULL;
2582         gboolean result = FALSE;
2583
2584         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW (win), FALSE);
2585
2586         /* Get send queue */
2587         cache_mgr = modest_runtime_get_cache_mgr ();
2588         send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
2589                                                        MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
2590
2591         g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
2592
2593         for (node = send_queues; node != NULL && !result; node = g_slist_next (node)) {
2594                 send_queue = MODEST_TNY_SEND_QUEUE (node->data);
2595
2596                 /* Check if send operation is in progress */
2597                 result = modest_tny_send_queue_sending_in_progress (send_queue);
2598         }
2599
2600         return result;
2601 }
2602
2603 static gboolean
2604 _invalid_folder_for_purge (ModestWindow *win,
2605                            ModestDimmingRule *rule)
2606 {
2607         TnyFolder *folder = NULL;
2608         TnyAccount *account = NULL;
2609         gboolean result = FALSE;
2610
2611         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2612
2613                 /* Get folder and account of message */
2614                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2615                 g_return_val_if_fail(msg != NULL, TRUE);
2616                 folder = tny_msg_get_folder (msg);
2617                 g_object_unref (msg);
2618                 if (folder == NULL) {
2619                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
2620                         goto frees;
2621                 }
2622         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2623                 GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2624                                                                               MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2625                 if (!folder_view)
2626                         return FALSE;
2627                 folder = TNY_FOLDER (modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view)));
2628                 if (folder == NULL || ! TNY_IS_FOLDER (folder))
2629                         goto frees;
2630         } else {
2631                 g_return_val_if_reached (FALSE);
2632         }
2633         account = modest_tny_folder_get_account (folder);
2634         if (account == NULL) goto frees;
2635
2636         /* Check account */
2637         if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (account))) {
2638                 TnyFolderType types[2];
2639                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
2640                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
2641
2642                 if (_selected_folder_is_any_of_type (win, types, 2)) {
2643                         result = TRUE;
2644                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_editable_msg"));
2645                 } else {
2646                         result = FALSE;
2647                 }
2648         } else {
2649                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (account));
2650                 /* If it's POP then dim */
2651                 if (modest_protocol_info_get_transport_store_protocol (proto_str) ==
2652                     MODEST_PROTOCOL_STORE_POP) {
2653                         TnyList *attachments = NULL;
2654                         gint n_selected = 0;
2655                         result = TRUE;
2656
2657                         /* TODO: This check is here to prevent a gwarning, but this looks like a logic error.
2658                          * murrayc */
2659                         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2660                                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2661                                 n_selected = tny_list_get_length (attachments);
2662                                 g_object_unref (attachments);
2663                         }
2664
2665                         modest_dimming_rule_set_notification (rule,
2666                                                               ngettext ("mail_ib_unable_to_pure_attach_pop_mail_singular",
2667                                                                         "mail_ib_unable_to_pure_attach_pop_mail_plural",
2668                                                                         n_selected));
2669                 }
2670         }
2671
2672 frees:
2673         if (folder != NULL)
2674                 g_object_unref (folder);
2675         if (account != NULL)
2676                 g_object_unref (account);
2677
2678         return result;
2679 }
2680
2681 static gboolean
2682 _transfer_mode_enabled (ModestWindow *win)
2683 {
2684         gboolean result = FALSE;
2685
2686         /* Check dimming */
2687         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2688                 result = modest_msg_view_window_transfer_mode_enabled (MODEST_MSG_VIEW_WINDOW (win));
2689         } else if (MODEST_IS_MAIN_WINDOW(win)) {
2690                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW (win));
2691         } else {
2692                 g_warning("_transfer_mode_enabled called with wrong window type");
2693         }
2694
2695         return result;
2696 }
2697
2698 static gboolean
2699 _selected_folder_has_subfolder_with_same_name (ModestWindow *win)
2700 {
2701         GtkWidget *folder_view = NULL;
2702         TnyFolderStore *folder = NULL;
2703         ModestEmailClipboard *clipboard = NULL;
2704         const gchar *folder_name = NULL;
2705         gboolean result = FALSE;
2706
2707         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
2708
2709         /*Get current parent folder */
2710         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2711                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2712         /* If no folder view, always dimmed */
2713         if (!folder_view) return FALSE;
2714
2715         /* Get selected folder as parent of new folder to create */
2716         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2717         if (!(folder && TNY_IS_FOLDER(folder))) goto frees;
2718
2719         /* get modest clipboard and source folder */
2720         clipboard = modest_runtime_get_email_clipboard ();
2721         folder_name = modest_email_clipboard_get_folder_name (clipboard);
2722         if (folder_name == NULL) goto frees;
2723
2724         /* Check source subfolders names */
2725         result = modest_tny_folder_has_subfolder_with_name (folder, folder_name,
2726                                                             TRUE);
2727
2728         /* Free */
2729  frees:
2730         if (folder != NULL)
2731                 g_object_unref (folder);
2732
2733
2734         return result;
2735 }
2736
2737 gboolean
2738 modest_ui_dimming_rules_on_save_to_drafts (ModestWindow *win,
2739                                            gpointer user_data)
2740 {
2741         ModestDimmingRule *rule = NULL;
2742         gboolean dimmed = FALSE;
2743
2744         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
2745         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2746         rule = MODEST_DIMMING_RULE (user_data);
2747
2748         /* Check dimmed rule */
2749         if (!dimmed) {
2750                 dimmed = !modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (win));
2751         }
2752
2753         return dimmed;
2754 }
2755
2756 gboolean
2757 modest_ui_dimming_rules_on_insert_image (ModestWindow *win,
2758                                          gpointer user_data)
2759 {
2760         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
2761
2762         ModestMsgEditFormat format =
2763           modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
2764
2765         return (format != MODEST_MSG_EDIT_FORMAT_HTML);
2766 }