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

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