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

   1 /* Copyright (c) 2006, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #ifdef HAVE_CONFIG_H
  31 #include <config.h>
  32 #endif /*HAVE_CONFIG_H*/
  33
  34 #include <string.h>
  35 #include "modest-ui-dimming-rules.h"
  36 #include "modest-dimming-rule.h"
  37 #include "modest-tny-folder.h"
  38 #include "modest-tny-account.h"
  39 #include "modest-text-utils.h"
  40 #include <widgets/modest-attachments-view.h>
  41 #include <modest-runtime.h>
  42 #include <tny-simple-list.h>
  43
  44
  45 static gboolean _folder_is_any_of_type (TnyFolder *folder, TnyFolderType types[], guint ntypes);
  46 static gboolean _invalid_msg_selected (ModestMainWindow *win, gboolean unique, ModestDimmingRule *rule);
  47 static gboolean _invalid_attach_selected (ModestWindow *win,
  48                                           gboolean unique, gboolean for_view, gboolean for_remove,
  49                                           ModestDimmingRule *rule);
  50 static gboolean _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule);
  51 static gboolean _clipboard_is_empty (ModestWindow *win);
  52 static gboolean _invalid_clipboard_selected (ModestWindow *win, ModestDimmingRule *rule);
  53 /* static gboolean _already_opened_msg (ModestWindow *win, guint *n_messages); */
  54 /* static gboolean _selected_msg_marked_as (ModestMainWindow *win, TnyHeaderFlags mask, gboolean opposite, gboolean all); */
  55 static gboolean _selected_folder_not_writeable (ModestMainWindow *win);
  56 static gboolean _selected_folder_is_any_of_type (ModestWindow *win, TnyFolderType types[], guint ntypes);
  57 static gboolean _selected_folder_is_root_or_inbox (ModestMainWindow *win);
  58 static gboolean _selected_folder_is_MMC_or_POP_root (ModestMainWindow *win);
  59 static gboolean _selected_folder_is_root (ModestMainWindow *win);
  60 static gboolean _header_view_is_all_selected (ModestMainWindow *win);
  61 static gboolean _selected_folder_is_empty (ModestMainWindow *win);
  62 static gboolean _folder_view_has_focus (ModestWindow *win);
  63 static gboolean _selected_folder_is_same_as_source (ModestWindow *win);
  64 static gboolean _msg_download_in_progress (ModestMsgViewWindow *win);
  65 static gboolean _msg_download_completed (ModestMainWindow *win);
  66 static gboolean _selected_msg_sent_in_progress (ModestWindow *win);
  67 static gboolean _sending_in_progress (ModestWindow *win);
  68 /* static gboolean _message_is_marked_as_deleted (ModestMsgViewWindow *win); */
  69 /* static gboolean _selected_message_is_marked_as_deleted (ModestMainWindow *win); */
  70 static gboolean _invalid_folder_for_purge (ModestWindow *win, ModestDimmingRule *rule);
  71 static gboolean _transfer_mode_enabled (ModestWindow *win);
  72
  73 static void  fill_list_of_caches (gpointer key, gpointer value, gpointer userdata);
  74
  75
  76 static DimmedState *
  77 _define_main_window_dimming_state (ModestMainWindow *window)
  78 {
  79         DimmedState *state = NULL;
  80         GtkWidget *focused_widget = NULL;
  81         GtkWidget *header_view = NULL;
  82         GtkTreeModel *model = NULL;
  83         TnyList *selected_headers = NULL;
  84         TnyIterator *iter = NULL;
  85         TnyHeader *header = NULL;
  86         ModestCacheMgr *cache_mgr = NULL;
  87         GHashTable *send_queue_cache = NULL;
  88         ModestTnySendQueue *send_queue = NULL;
  89         GSList *send_queues = NULL, *node = NULL;
  90         ModestWindowMgr *mgr = NULL;
  91         gboolean found = FALSE;
  92         gchar *msg_uid = NULL;
  93         TnyHeaderFlags flags;
  94         gboolean all_deleted = TRUE;
  95         gboolean all_seen = TRUE;
  96         gboolean all_cached = TRUE;
  97         gboolean all_has_attach = TRUE;
  98
  99         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(window), NULL);
 100
 101         /* Init state */
 102         state = g_slice_new0 (DimmedState);
 103         state->n_selected = 0;
 104         state->already_opened_msg = FALSE;
 105         state->any_marked_as_deleted = FALSE;
 106         state->all_marked_as_deleted = FALSE;
 107         state->any_marked_as_seen = FALSE;
 108         state->all_marked_as_seen = FALSE;
 109         state->any_marked_as_cached = FALSE;
 110         state->all_marked_as_cached = FALSE;
 111         state->any_has_attachments = FALSE;
 112         state->all_has_attachments = FALSE;
 113         state->sent_in_progress = FALSE;
 114         state->all_selected = FALSE;
 115
 116         /* Get focused widget */
 117         focused_widget = gtk_window_get_focus (GTK_WINDOW (window));
 118         if (MODEST_IS_FOLDER_VIEW (focused_widget)) {
 119                 state->n_selected++;
 120                 return state;
 121         } else if (MODEST_IS_HEADER_VIEW (focused_widget)) {
 122                 header_view = focused_widget;
 123         } else {
 124                 header_view = modest_main_window_get_child_widget (window, MODEST_WIDGET_TYPE_HEADER_VIEW);
 125         }
 126
 127         /* Get header view and selected headers */
 128         selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
 129         if (!selected_headers)
 130                 return state;
 131
 132         /* Examine selected headers */
 133         iter = tny_list_create_iterator (selected_headers);
 134         while (!tny_iterator_is_done (iter)) {
 135                 header = TNY_HEADER (tny_iterator_get_current (iter));
 136                 flags = tny_header_get_flags (header);
 137
 138                 /* No selected */
 139                 state->n_selected++;
 140
 141                 /* Already opened */
 142                 mgr = modest_runtime_get_window_mgr ();
 143                 if (!state->already_opened_msg)
 144                         state->already_opened_msg = modest_window_mgr_find_registered_header (mgr, header, NULL);
 145
 146
 147                 /* Mark as deleted */
 148                 all_deleted = all_deleted && (flags & TNY_HEADER_FLAG_DELETED);
 149                 state->all_marked_as_deleted = all_deleted;
 150                 if (!state->any_marked_as_deleted)
 151                         state->any_marked_as_deleted = flags & TNY_HEADER_FLAG_DELETED;
 152
 153                 /* Mark as seen */
 154                 all_seen = all_seen && (flags & TNY_HEADER_FLAG_SEEN);
 155                 state->all_marked_as_seen = all_seen;
 156                 if (!state->any_marked_as_seen)
 157                         state->any_marked_as_seen = flags & TNY_HEADER_FLAG_SEEN;
 158
 159                 /* Mark as cached */
 160                 all_cached = all_cached && (flags & TNY_HEADER_FLAG_CACHED);
 161                 state->all_marked_as_cached = all_cached;
 162                 if (!state->any_marked_as_cached)
 163                         state->any_marked_as_cached = flags & TNY_HEADER_FLAG_CACHED;
 164
 165                 /* Mark has_attachments */
 166                 all_has_attach = all_has_attach && (flags & TNY_HEADER_FLAG_ATTACHMENTS);
 167                 state->all_has_attachments = all_has_attach;
 168                 if (!state->any_has_attachments)
 169                         state->any_has_attachments = flags & TNY_HEADER_FLAG_ATTACHMENTS;
 170
 171                 /* sent in progress */
 172                 msg_uid = modest_tny_send_queue_get_msg_id (header);
 173                 if (!state->sent_in_progress) {
 174                         cache_mgr = modest_runtime_get_cache_mgr ();
 175                         send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
 176                                                                        MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
 177
 178                         g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
 179
 180                         for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
 181                                 send_queue = MODEST_TNY_SEND_QUEUE (node->data);
 182
 183                                 /* Check if msg uid is being processed inside send queue */
 184                                 found = modest_tny_send_queue_msg_is_being_sent (send_queue, msg_uid);
 185                         }
 186                         state->sent_in_progress = found;
 187                 }
 188
 189                 tny_iterator_next (iter);
 190                 g_object_unref (header);
 191         }
 192
 193         /* check if all the headers are selected or not */
 194         model = gtk_tree_view_get_model(GTK_TREE_VIEW(header_view));
 195         if (model != NULL){
 196                 gint count;
 197                 count = gtk_tree_model_iter_n_children(model, NULL);
 198                 if(state->n_selected == count != 0)
 199                         state->all_selected = TRUE;
 200         }
 201
 202         /* Free */
 203         g_free(msg_uid);
 204         g_object_unref(selected_headers);
 205         g_object_unref(iter);
 206         g_slist_free (send_queues);
 207
 208         return state;
 209 }
 210
 211 static DimmedState *
 212 _define_msg_view_window_dimming_state (ModestMsgViewWindow *window)
 213 {
 214         DimmedState *state = NULL;
 215         TnyHeader *header = NULL;
 216         ModestCacheMgr *cache_mgr = NULL;
 217         GHashTable *send_queue_cache = NULL;
 218         ModestTnySendQueue *send_queue = NULL;
 219         GSList *send_queues = NULL, *node = NULL;
 220         gboolean found = FALSE;
 221         gchar *msg_uid = NULL;
 222         TnyHeaderFlags flags;
 223         gboolean all_deleted = TRUE;
 224         gboolean all_seen = TRUE;
 225         gboolean all_cached = TRUE;
 226         gboolean all_has_attach = TRUE;
 227
 228         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(window), NULL);
 229
 230         /* Init state */
 231         state = g_slice_new0 (DimmedState);
 232         state->n_selected = 0;
 233         state->already_opened_msg = FALSE;
 234         state->any_marked_as_deleted = FALSE;
 235         state->all_marked_as_deleted = FALSE;
 236         state->any_marked_as_seen = FALSE;
 237         state->all_marked_as_seen = FALSE;
 238         state->any_marked_as_cached = FALSE;
 239         state->all_marked_as_cached = FALSE;
 240         state->any_has_attachments = FALSE;
 241         state->all_has_attachments = FALSE;
 242         state->sent_in_progress = FALSE;
 243
 244         header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW(window));
 245         g_return_val_if_fail (TNY_IS_HEADER(header), state);
 246         flags = tny_header_get_flags (header);
 247
 248         /* Selected */
 249         state->n_selected++;
 250
 251         /* Mark as deleted */
 252         all_deleted = all_deleted && (flags & TNY_HEADER_FLAG_DELETED);
 253         state->all_marked_as_deleted = all_deleted;
 254         if (!state->any_marked_as_deleted)
 255                 state->any_marked_as_deleted = flags & TNY_HEADER_FLAG_DELETED;
 256
 257         /* Mark as seen */
 258         all_seen = all_seen && (flags & TNY_HEADER_FLAG_SEEN);
 259         state->all_marked_as_seen = all_seen;
 260         if (!state->any_marked_as_seen)
 261                 state->any_marked_as_seen = flags & TNY_HEADER_FLAG_SEEN;
 262
 263         /* Mark as cached */
 264         all_cached = all_cached && (flags & TNY_HEADER_FLAG_CACHED);
 265         state->all_marked_as_cached = all_cached;
 266         if (!state->any_marked_as_cached)
 267                 state->any_marked_as_cached = flags & TNY_HEADER_FLAG_CACHED;
 268
 269         /* Mark has_attachments */
 270         all_has_attach = all_has_attach && (flags & TNY_HEADER_FLAG_ATTACHMENTS);
 271         state->all_has_attachments = all_has_attach;
 272         if (!state->any_has_attachments)
 273                 state->any_has_attachments = flags & TNY_HEADER_FLAG_ATTACHMENTS;
 274
 275         /* sent in progress */
 276         msg_uid = modest_tny_send_queue_get_msg_id (header);
 277         if (!state->sent_in_progress) {
 278                 cache_mgr = modest_runtime_get_cache_mgr ();
 279                 send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
 280                                                                MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
 281
 282                 g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
 283
 284                 for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
 285                         send_queue = MODEST_TNY_SEND_QUEUE (node->data);
 286
 287                         /* Check if msg uid is being processed inside send queue */
 288                         found = modest_tny_send_queue_msg_is_being_sent (send_queue, msg_uid);
 289                 }
 290                 state->sent_in_progress = found;
 291         }
 292
 293         /* Free */
 294         g_free(msg_uid);
 295         g_object_unref (header);
 296         g_slist_free (send_queues);
 297
 298         return state;
 299 }
 300
 301
 302 DimmedState *
 303 modest_ui_dimming_rules_define_dimming_state (ModestWindow *window)
 304 {
 305         DimmedState *state = NULL;
 306
 307         g_return_val_if_fail (MODEST_IS_WINDOW(window), NULL);
 308
 309         if (MODEST_IS_MAIN_WINDOW (window))
 310                 state = _define_main_window_dimming_state (MODEST_MAIN_WINDOW(window));
 311         else if (MODEST_IS_MSG_VIEW_WINDOW (window)) {
 312                 state = _define_msg_view_window_dimming_state (MODEST_MSG_VIEW_WINDOW(window));
 313         }
 314
 315         return state;
 316 }
 317
 318
 319 gboolean
 320 modest_ui_dimming_rules_on_new_msg (ModestWindow *win, gpointer user_data)
 321 {
 322         ModestDimmingRule *rule = NULL;
 323         gboolean dimmed = FALSE;
 324
 325         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 326         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 327         rule = MODEST_DIMMING_RULE (user_data);
 328
 329         /* Check dimmed rule */
 330         if (!dimmed) {
 331                 dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW(win));
 332                 if (dimmed)
 333                         modest_dimming_rule_set_notification (rule, "");
 334         }
 335
 336         return dimmed;
 337 }
 338
 339 gboolean
 340 modest_ui_dimming_rules_on_new_folder (ModestWindow *win, gpointer user_data)
 341 {
 342         ModestDimmingRule *rule = NULL;
 343         GtkWidget *folder_view = NULL;
 344         TnyFolderStore *parent_folder = NULL;
 345         gboolean dimmed = FALSE;
 346
 347         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 348         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 349         rule = MODEST_DIMMING_RULE (user_data);
 350
 351         /* Get selected folder as parent of new folder to create */
 352         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 353                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
 354         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
 355         if (!parent_folder)
 356                 return TRUE;
 357
 358         if (TNY_IS_ACCOUNT (parent_folder)) {
 359                 /* If it's the local account then do not dim */
 360                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
 361                         dimmed = FALSE;
 362                 } else {
 363                         const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
 364                         /* If it's POP then dim */
 365                         dimmed = (modest_protocol_info_get_transport_store_protocol (proto_str) ==
 366                                   MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
 367                         if (dimmed)
 368                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 369                 }
 370         } else {
 371                 /* TODO: the specs say that only one level of subfolder is allowed, is this true ? */
 372
 373                 TnyFolderType types[3];
 374
 375                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 376                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 377                 types[2] = TNY_FOLDER_TYPE_SENT;
 378
 379                 /* Apply folder rules */
 380                 if (!dimmed) {
 381                         dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 382                         if (dimmed)
 383                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 384                 }
 385                 if (!dimmed) {
 386                         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 387                         if (dimmed)
 388                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 389                 }
 390         }
 391         g_object_unref (parent_folder);
 392
 393         return dimmed;
 394 }
 395
 396 gboolean
 397 modest_ui_dimming_rules_on_delete (ModestWindow *win, gpointer user_data)
 398 {
 399         ModestDimmingRule *rule = NULL;
 400         GtkWidget *folder_view = NULL;
 401         GtkWidget *header_view = NULL;
 402         gboolean dimmed = FALSE;
 403
 404         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 405         rule = MODEST_DIMMING_RULE (user_data);
 406
 407         if (MODEST_IS_MAIN_WINDOW (win)) {
 408                 /* Get the folder view */
 409                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 410                                                                    MODEST_WIDGET_TYPE_FOLDER_VIEW);
 411
 412                 /* Get header view */
 413                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 414                                                            MODEST_WIDGET_TYPE_HEADER_VIEW);
 415
 416                 if (header_view && gtk_widget_is_focus (header_view))
 417                         dimmed = modest_ui_dimming_rules_on_delete_msg (win, rule);
 418
 419                 if (folder_view && gtk_widget_is_focus (folder_view))
 420                         dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 421
 422                 if (header_view && folder_view &&
 423                     !gtk_widget_is_focus (header_view) &&
 424                     !gtk_widget_is_focus (folder_view)) {
 425                         dimmed = TRUE;
 426                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ckct_ib_nothing_to_delete"));
 427                 }
 428         } else {
 429                 dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 430         }
 431
 432         return dimmed;
 433 }
 434
 435
 436
 437 gboolean
 438 modest_ui_dimming_rules_on_delete_folder (ModestWindow *win, gpointer user_data)
 439 {
 440         ModestDimmingRule *rule = NULL;
 441         TnyFolderType types[6];
 442         gboolean dimmed = FALSE;
 443
 444         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 445         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 446         rule = MODEST_DIMMING_RULE (user_data);
 447
 448         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 449         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 450         types[2] = TNY_FOLDER_TYPE_SENT;
 451         types[3] = TNY_FOLDER_TYPE_INBOX;
 452         types[4] = TNY_FOLDER_TYPE_ROOT;
 453         types[5] = TNY_FOLDER_TYPE_ARCHIVE;
 454
 455
 456         /* Check dimmed rule */
 457         if (!dimmed) {
 458                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 459                 if (dimmed)
 460                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 461         }
 462         if (!dimmed) {
 463                 dimmed = _selected_folder_is_any_of_type (win, types, 6);
 464                 if (dimmed)
 465                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 466         }
 467         if (!dimmed) {
 468                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 469                 if (dimmed)
 470                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 471         }
 472         if (!dimmed) {
 473                 dimmed = _selected_folder_is_MMC_or_POP_root (MODEST_MAIN_WINDOW(win));
 474                 if (dimmed)
 475                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 476         }
 477         if (!dimmed) {
 478                 dimmed = _transfer_mode_enabled (win);
 479                 if (dimmed)
 480                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 481         }
 482
 483         return dimmed;
 484 }
 485
 486 gboolean
 487 modest_ui_dimming_rules_on_sort (ModestWindow *win, gpointer user_data)
 488 {
 489         ModestDimmingRule *rule = NULL;
 490         gboolean dimmed = FALSE;
 491
 492         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 493         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 494         rule = MODEST_DIMMING_RULE (user_data);
 495
 496         /* Check dimmed rule */
 497         if (!dimmed) {
 498                 dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
 499                 modest_dimming_rule_set_notification (rule, _CS("ckdg_ib_nothing_to_sort"));
 500         }
 501
 502         if (!dimmed) {
 503                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 504                 modest_dimming_rule_set_notification (rule, _CS("ckdg_ib_nothing_to_sort"));
 505         }
 506
 507         return dimmed;
 508
 509 }
 510
 511 gboolean
 512 modest_ui_dimming_rules_on_rename_folder (ModestWindow *win, gpointer user_data)
 513 {
 514         ModestDimmingRule *rule = NULL;
 515         TnyFolderType types[4];
 516         gboolean dimmed = FALSE;
 517
 518         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 519         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 520         rule = MODEST_DIMMING_RULE (user_data);
 521
 522         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 523         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 524         types[2] = TNY_FOLDER_TYPE_SENT;
 525         types[3] = TNY_FOLDER_TYPE_ARCHIVE;
 526
 527         /* Check dimmed rule */
 528         if (!dimmed) {
 529                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 530                 if (dimmed)
 531                         modest_dimming_rule_set_notification (rule, "");
 532         }
 533         if (!dimmed) {
 534                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 535                 if (dimmed)
 536                         modest_dimming_rule_set_notification (rule, "");
 537         }
 538         if (!dimmed) {
 539                 dimmed = _selected_folder_is_any_of_type (win, types, 4);
 540                 if (dimmed)
 541                         modest_dimming_rule_set_notification (rule, "");
 542         }
 543
 544         return dimmed;
 545 }
 546
 547 gboolean
 548 modest_ui_dimming_rules_on_open_msg (ModestWindow *win, gpointer user_data)
 549 {
 550         ModestDimmingRule *rule = NULL;
 551         gboolean dimmed = FALSE;
 552         const DimmedState *state = NULL;
 553
 554         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 555         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 556         rule = MODEST_DIMMING_RULE (user_data);
 557         state = modest_window_get_dimming_state (win);
 558
 559         /* Check dimmed rule */
 560         if (!dimmed) {
 561                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 562         }
 563         if (!dimmed) {
 564                 dimmed = state->any_marked_as_deleted;
 565                 if (dimmed)
 566                         modest_dimming_rule_set_notification (rule, _("mcen_ib_message_already_deleted"));
 567         }
 568         if (!dimmed) {
 569                 dimmed = _selected_msg_sent_in_progress (win);
 570                 if (dimmed)
 571                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_open_while_sent"));
 572         }
 573
 574         return dimmed;
 575 }
 576
 577 gboolean
 578 modest_ui_dimming_rules_on_reply_msg (ModestWindow *win, gpointer user_data)
 579 {
 580         ModestDimmingRule *rule = NULL;
 581         gboolean dimmed = FALSE;
 582         TnyFolderType types[3];
 583
 584         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 585         rule = MODEST_DIMMING_RULE (user_data);
 586
 587         /* main window dimming rules */
 588         if (MODEST_IS_MAIN_WINDOW(win)) {
 589
 590                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 591                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 592                 types[2] = TNY_FOLDER_TYPE_ROOT;
 593
 594                 /* Check dimmed rule */
 595                 if (!dimmed) {
 596                         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 597                         if (dimmed)
 598                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 599                 }
 600                 if (!dimmed) {
 601                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 602                         if (dimmed)
 603                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_nothing_to_reply"));
 604                 }
 605                 if (!dimmed) {
 606                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, rule);
 607                 }
 608         /* msg view window dimming rules */
 609         } else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
 610
 611                 /* Check dimmed rule */
 612                 if (!dimmed) {
 613                         dimmed = _transfer_mode_enabled (win);
 614                         if (dimmed)
 615                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 616                 }
 617                 if (!dimmed) {
 618                         dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW (win));
 619                         if (dimmed)
 620                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 621                 }
 622         }
 623
 624         return dimmed;
 625 }
 626
 627
 628 gboolean
 629 modest_ui_dimming_rules_on_contents_msg (ModestWindow *win, gpointer user_data)
 630 {
 631         ModestDimmingRule *rule = NULL;
 632         gboolean dimmed = FALSE;
 633
 634         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 635         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 636         rule = MODEST_DIMMING_RULE (user_data);
 637
 638         /* Check dimmed rule */
 639         if (!dimmed) {
 640                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 641         }
 642         if (!dimmed) {
 643                 dimmed = _msg_download_completed (MODEST_MAIN_WINDOW(win));
 644                 if (dimmed)
 645                         modest_dimming_rule_set_notification (rule, "");
 646         }
 647
 648         return dimmed;
 649 }
 650
 651 gboolean
 652 modest_ui_dimming_rules_always_dimmed (ModestWindow *win, gpointer user_data)
 653 {
 654         gboolean dimmed = FALSE;
 655
 656         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 657
 658         /* Check dimmed rule */
 659         if (!dimmed)
 660                 dimmed = TRUE;
 661
 662         return dimmed;
 663 }
 664
 665 gboolean
 666 modest_ui_dimming_rules_on_delete_msg (ModestWindow *win, gpointer user_data)
 667 {
 668         ModestDimmingRule *rule = NULL;
 669         guint n_messages = 0;
 670         const DimmedState *state = NULL;
 671         gboolean dimmed = FALSE;
 672
 673         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 674         rule = MODEST_DIMMING_RULE (user_data);
 675         state = modest_window_get_dimming_state (win);
 676
 677         /* Check dimmed rule */
 678         if (MODEST_IS_MAIN_WINDOW (win)) {
 679                 if (!dimmed) {
 680                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 681                         if (dimmed)
 682                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_nothing_to_delete"));
 683                 }
 684                 if (!dimmed) {
 685                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 686                 }
 687                 if (!dimmed) {
 688                         dimmed = state->already_opened_msg;
 689                         n_messages = state->n_selected;
 690                         if (dimmed) {
 691                                 gchar *num = g_strdup_printf ("%d", n_messages);
 692                                 gchar *message = g_strdup_printf(_("mcen_nc_unable_to_delete_n_messages"), num);
 693                                 modest_dimming_rule_set_notification (rule, message);
 694                                 g_free(message);
 695                                 g_free(num);
 696                         }
 697
 698                 }
 699                 if (!dimmed) {
 700                         dimmed = state->any_marked_as_deleted;
 701                         if (dimmed) {
 702                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_message_already_deleted"));
 703                         }
 704                 }
 705                 if (!dimmed) {
 706                         dimmed = state->sent_in_progress;
 707                         if (dimmed)
 708                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 709                 }
 710         }
 711         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
 712                 if (!dimmed) {
 713                         dimmed = _transfer_mode_enabled (win);
 714                         if (dimmed)
 715                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 716                 }
 717                 if (!dimmed) {
 718                         dimmed = state->any_marked_as_deleted;
 719                         if (dimmed)
 720                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_message_already_deleted"));
 721                 }
 722
 723                 /* The delete button should be dimmed when viewing an attachment,
 724                  * but should be enabled when viewing a message from the list,
 725                  * or when viewing a search result.
 726                  */
 727                 if (!dimmed) {
 728                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
 729                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW(win));
 730                                 if (dimmed) {
 731                                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 732                                 }
 733                         }
 734                 }
 735         }
 736
 737         return dimmed;
 738 }
 739
 740 gboolean
 741 modest_ui_dimming_rules_on_details (ModestWindow *win, gpointer user_data)
 742 {
 743         ModestDimmingRule *rule = NULL;
 744         GtkWidget *header_view = NULL;
 745         gboolean dimmed = FALSE;
 746
 747         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 748         rule = MODEST_DIMMING_RULE (user_data);
 749
 750         /* main window dimming rules */
 751         if (MODEST_IS_MAIN_WINDOW(win)) {
 752
 753                 /* Check dimmed rule */
 754                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 755                                                                    MODEST_WIDGET_TYPE_HEADER_VIEW);
 756
 757                 /* If the header view has the focus: */
 758                 if (header_view && gtk_widget_is_focus (header_view)) {
 759                         /* Check dimmed rule */
 760                         if (!dimmed)
 761                                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 762                 }
 763                 else {
 764                         /* If the folder view has the focus: */
 765                         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 766                                 MODEST_WIDGET_TYPE_FOLDER_VIEW);
 767                         if (folder_view && gtk_widget_is_focus (folder_view)) {
 768                                 TnyFolderStore *folder_store
 769                                         = modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
 770                                 if (folder_store) {
 771                                         /* Only enable for folders, not accounts,
 772                                          * though the UI spec is not clear about that.
 773                                          * If we enable this for accounts then we must
 774                                          * add code to handle them in modest_ui_actions_on_details(). */
 775                                         if (!TNY_IS_FOLDER(folder_store)) {
 776                                                 dimmed = TRUE;
 777                                                 modest_dimming_rule_set_notification (rule, "");
 778                                         }
 779
 780                                         g_object_unref (folder_store);
 781                                 }
 782                         }
 783
 784                 }
 785
 786         /* msg view window dimming rules */
 787         } else {
 788
 789                 /* Check dimmed rule */
 790                 if (!dimmed) {
 791                         if (MODEST_IS_MSG_VIEW_WINDOW (win))
 792                                 dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW (win));
 793                         if (dimmed)
 794                                 modest_dimming_rule_set_notification (rule, "");
 795                 }
 796         }
 797
 798         return dimmed;
 799 }
 800
 801
 802 gboolean
 803 modest_ui_dimming_rules_on_mark_as_read_msg (ModestWindow *win, gpointer user_data)
 804 {
 805         ModestDimmingRule *rule = NULL;
 806         TnyHeaderFlags flags;
 807         const DimmedState *state = NULL;
 808         gboolean dimmed = FALSE;
 809
 810         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 811         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 812         rule = MODEST_DIMMING_RULE (user_data);
 813         state = modest_window_get_dimming_state (win);
 814
 815         flags = TNY_HEADER_FLAG_SEEN;
 816
 817         /* Check dimmed rule */
 818         if (!dimmed) {
 819                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 820         }
 821         if (!dimmed) {
 822                 dimmed = state->all_marked_as_seen;
 823                 if (dimmed)
 824                         modest_dimming_rule_set_notification (rule, "");
 825         }
 826
 827         return dimmed;
 828 }
 829
 830 gboolean
 831 modest_ui_dimming_rules_on_mark_as_unread_msg (ModestWindow *win, gpointer user_data)
 832 {
 833         ModestDimmingRule *rule = NULL;
 834         TnyHeaderFlags flags;
 835         const DimmedState *state = NULL;
 836         gboolean dimmed = FALSE;
 837
 838         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 839         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 840         rule = MODEST_DIMMING_RULE (user_data);
 841         state = modest_window_get_dimming_state (win);
 842
 843         flags = TNY_HEADER_FLAG_SEEN;
 844
 845         /* Check dimmed rule */
 846         if (!dimmed)
 847                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 848         if (!dimmed) {
 849                 dimmed = !state->any_marked_as_seen;
 850                 if (dimmed)
 851                         modest_dimming_rule_set_notification (rule, "");
 852         }
 853
 854         return dimmed;
 855 }
 856
 857 gboolean
 858 modest_ui_dimming_rules_on_move_to (ModestWindow *win, gpointer user_data)
 859 {
 860         ModestDimmingRule *rule = NULL;
 861         gboolean dimmed = FALSE;
 862
 863         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 864         rule = MODEST_DIMMING_RULE (user_data);
 865
 866         if (MODEST_IS_MAIN_WINDOW (win))
 867                 dimmed = modest_ui_dimming_rules_on_main_window_move_to (win, user_data);
 868         else if (MODEST_IS_MSG_VIEW_WINDOW (win))
 869                  dimmed = modest_ui_dimming_rules_on_view_window_move_to (win, user_data);
 870
 871         return dimmed;
 872 }
 873
 874
 875 gboolean
 876 modest_ui_dimming_rules_on_main_window_move_to (ModestWindow *win, gpointer user_data)
 877 {
 878         GtkWidget *folder_view = NULL;
 879         ModestDimmingRule *rule = NULL;
 880         guint n_messages = 0;
 881         const DimmedState *state = NULL;
 882         gboolean dimmed = FALSE;
 883
 884         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
 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         /* Get the folder view */
 890         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 891                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
 892
 893
 894         /* Check diming rules for folders transfer  */
 895         if (gtk_widget_is_focus (folder_view)) {
 896                 TnyFolderType types[5];
 897
 898                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 899                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 900                 types[2] = TNY_FOLDER_TYPE_SENT;
 901                 types[3] = TNY_FOLDER_TYPE_ROOT;
 902                 types[4] = TNY_FOLDER_TYPE_INBOX;
 903
 904                 /* Apply folder rules */
 905                 if (!dimmed) {
 906                         dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 907                         if (dimmed)
 908                                 modest_dimming_rule_set_notification (rule, _("emev_bd_unabletomove_items"));
 909                 }
 910                 if (!dimmed) {
 911                         dimmed = _selected_folder_is_any_of_type (win, types, 5);
 912                         if (dimmed)
 913                                 modest_dimming_rule_set_notification (rule, _("emev_bd_unabletomove_itemsr"));
 914                 }
 915         }
 916
 917         /* Check diming rules for messages transfer  */
 918         if (!dimmed) {
 919                 dimmed = state->already_opened_msg;
 920                 n_messages = state->n_selected;
 921                 if (dimmed) {
 922                         gchar *message = g_strdup_printf(_("emev_bd_unabletomove_items"), n_messages);
 923                         modest_dimming_rule_set_notification (rule, message);
 924                         g_free(message);
 925                 }
 926         }
 927         if (!dimmed) {
 928                 if (!gtk_widget_is_focus (folder_view))
 929                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 930
 931         }
 932
 933         return dimmed;
 934 }
 935
 936 gboolean
 937 modest_ui_dimming_rules_on_view_window_move_to (ModestWindow *win, gpointer user_data)
 938 {
 939         ModestDimmingRule *rule = NULL;
 940         gboolean dimmed = FALSE;
 941
 942         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 943         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 944         rule = MODEST_DIMMING_RULE (user_data);
 945
 946         /* Check dimmed rule */
 947         if (!dimmed) {
 948                 dimmed = _transfer_mode_enabled (win);
 949                 if (dimmed)
 950                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 951         }
 952
 953         if (!dimmed) {
 954                 if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
 955                         /* The move_to button should be dimmed when viewing an attachment,
 956                          * but should be enabled when viewing a message from the list,
 957                          * or when viewing a search result.
 958                          */
 959                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
 960                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
 961                         }
 962                 }
 963
 964                 if (dimmed)
 965                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_move_mail_attachment"));
 966         }
 967
 968         return dimmed;
 969 }
 970
 971 gboolean
 972 modest_ui_dimming_rules_on_find_msg (ModestWindow *win, gpointer user_data)
 973 {
 974         ModestDimmingRule *rule = NULL;
 975         gboolean dimmed = FALSE;
 976
 977         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 978         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 979         rule = MODEST_DIMMING_RULE (user_data);
 980
 981         /* Check dimmed rule */
 982         if (!dimmed) {
 983                 dimmed = _transfer_mode_enabled (win);
 984                 if (dimmed)
 985                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 986         }
 987
 988         return dimmed;
 989 }
 990
 991 gboolean
 992 modest_ui_dimming_rules_on_paste_msgs (ModestWindow *win, gpointer user_data)
 993 {
 994         ModestDimmingRule *rule = NULL;
 995         TnyFolderType types[3];
 996         gboolean dimmed = FALSE;
 997
 998         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 999         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1000         rule = MODEST_DIMMING_RULE (user_data);
1001
1002         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1003         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1004         types[2] = TNY_FOLDER_TYPE_SENT;
1005
1006         /* Check dimmed rule */
1007         if (!dimmed) {
1008                 dimmed = _clipboard_is_empty (win);
1009                 if (dimmed)
1010                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ecoc_ib_edwin_nothing_to_paste"));
1011         }
1012         if (!dimmed) {
1013                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1014                 if (dimmed)
1015                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ckct_ib_unable_to_paste_here"));
1016         }
1017         if (!dimmed) {
1018                 dimmed = !_folder_view_has_focus (win);
1019                 if (dimmed)
1020                         modest_dimming_rule_set_notification (rule,
1021                                         dgettext("hildon-common-strings",
1022                                         "ckct_ib_unable_to_paste_here"));
1023         }
1024         if (!dimmed) {
1025                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
1026                 if (dimmed) {
1027                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ckct_ib_unable_to_paste_here"));
1028                 }
1029         }
1030         if (!dimmed) {
1031                 dimmed = _selected_folder_is_same_as_source (win);
1032                 if (dimmed)
1033                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_copy_samefolder"));
1034         }
1035
1036         return dimmed;
1037 }
1038
1039
1040 gboolean
1041 modest_ui_dimming_rules_on_select_all (ModestWindow *win, gpointer user_data)
1042 {
1043         ModestDimmingRule *rule = NULL;
1044         gboolean dimmed = FALSE;
1045
1046         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1047         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1048         rule = MODEST_DIMMING_RULE (user_data);
1049
1050         /* Check dimmed rule */
1051         if (!dimmed)
1052                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1053
1054         if (!dimmed)
1055                 dimmed = _header_view_is_all_selected (MODEST_MAIN_WINDOW(win));
1056
1057         if (dimmed)
1058                 modest_dimming_rule_set_notification (rule, "");
1059
1060         return dimmed;
1061 }
1062
1063 gboolean
1064 modest_ui_dimming_rules_on_view_attachments (ModestWindow *win, gpointer user_data)
1065 {
1066         ModestDimmingRule *rule = NULL;
1067         gboolean dimmed = FALSE;
1068
1069         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1070         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1071         rule = MODEST_DIMMING_RULE (user_data);
1072
1073         /* Check dimmed rule */
1074         if (!dimmed)
1075                 dimmed = _invalid_attach_selected (win, TRUE, TRUE, FALSE, rule);
1076
1077         if (!dimmed) {
1078                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1079                 if (dimmed) {
1080                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1081                 }
1082         }
1083
1084         return dimmed;
1085 }
1086
1087 gboolean
1088 modest_ui_dimming_rules_on_save_attachments (ModestWindow *win, gpointer user_data)
1089 {
1090         ModestDimmingRule *rule = NULL;
1091         gboolean dimmed = FALSE;
1092
1093         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1094         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1095         rule = MODEST_DIMMING_RULE (user_data);
1096
1097         /* Check dimmed rule */
1098         if (!dimmed)
1099                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, FALSE, rule);
1100
1101         if (!dimmed) {
1102                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1103                 if (dimmed) {
1104                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1105                 }
1106         }
1107
1108         return dimmed;
1109 }
1110
1111 gboolean
1112 modest_ui_dimming_rules_on_remove_attachments (ModestWindow *win, gpointer user_data)
1113 {
1114         ModestDimmingRule *rule = NULL;
1115         const DimmedState *state = NULL;
1116         gboolean dimmed = FALSE;
1117
1118         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1119         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1120         rule = MODEST_DIMMING_RULE (user_data);
1121         state = modest_window_get_dimming_state (win);
1122
1123         /* Check in main window if there's only one message selected */
1124         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1125                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW (win), TRUE, rule);
1126         }
1127
1128         /* Check in view window if there's any attachment selected */
1129         if (!dimmed && MODEST_IS_MSG_VIEW_WINDOW (win)) {
1130                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, TRUE, NULL);
1131                 if (dimmed)
1132                         modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1133         }
1134
1135         /* cannot purge in editable drafts nor pop folders */
1136         if (!dimmed) {
1137                 dimmed = _invalid_folder_for_purge (win, rule);
1138         }
1139
1140         /* Check if the selected message in main window has attachments */
1141         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1142                 dimmed = state->any_has_attachments;
1143                 if (dimmed)
1144                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1145         }
1146
1147         /* Check if all attachments are already purged */
1148         if (!dimmed) {
1149                 dimmed = _purged_attach_selected (win, TRUE, rule);
1150         }
1151
1152         /* Check if the message is already downloaded */
1153         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1154                 dimmed = !_msg_download_completed (MODEST_MAIN_WINDOW (win));
1155                 if (dimmed)
1156                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1157         }
1158
1159
1160         return dimmed;
1161 }
1162
1163 gboolean
1164 modest_ui_dimming_rules_on_undo (ModestWindow *win, gpointer user_data)
1165 {
1166         ModestDimmingRule *rule = NULL;
1167         gboolean dimmed = FALSE;
1168
1169         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1170         rule = MODEST_DIMMING_RULE (user_data);
1171
1172         /* Check dimmed rule */
1173         if (!dimmed) {
1174                 dimmed = _clipboard_is_empty (win);
1175                 if (dimmed)
1176                         modest_dimming_rule_set_notification (rule, "");
1177         }
1178
1179         return dimmed;
1180 }
1181
1182 gboolean
1183 modest_ui_dimming_rules_on_cut (ModestWindow *win, gpointer user_data)
1184 {
1185         ModestDimmingRule *rule = NULL;
1186         gboolean dimmed = FALSE;
1187
1188         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1189         rule = MODEST_DIMMING_RULE (user_data);
1190
1191         /* Check common dimming rules */
1192         if (!dimmed) {
1193                 dimmed = _invalid_clipboard_selected (win, rule);
1194         }
1195
1196         /* Check window specific dimming rules */
1197         if (MODEST_IS_MAIN_WINDOW (win)) {
1198                 /* Get focused widget */
1199                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1200
1201                 if (MODEST_IS_HEADER_VIEW (focused)) {
1202                         if (!dimmed) {
1203                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1204                                 if (dimmed)
1205                                         modest_dimming_rule_set_notification (rule, "");
1206                         }
1207                         if (!dimmed) {
1208                                 dimmed = _selected_msg_sent_in_progress (win);
1209                                 if (dimmed)
1210                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1211                         }
1212                 }
1213                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1214                         TnyFolderType types[3];
1215
1216                         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1217                         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1218                         types[2] = TNY_FOLDER_TYPE_SENT;
1219
1220                         /* Apply folder rules */
1221                         if (!dimmed) {
1222                                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
1223                                 if (dimmed)
1224                                         modest_dimming_rule_set_notification (rule, _("emev_bd_unabletomove_items"));
1225                         }
1226                         if (!dimmed) {
1227                                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
1228                                 if (dimmed)
1229                                         modest_dimming_rule_set_notification (rule, _("emev_bd_unabletomove_itemsr"));
1230                         }
1231                         if (!dimmed) {
1232                                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1233                                 if (dimmed)
1234                                         modest_dimming_rule_set_notification (rule, _("emev_bd_unabletomove_itemsr"));
1235                         }
1236                 }
1237         }
1238
1239         return dimmed;
1240 }
1241
1242 gboolean
1243 modest_ui_dimming_rules_on_copy (ModestWindow *win, gpointer user_data)
1244 {
1245         ModestDimmingRule *rule = NULL;
1246         gboolean dimmed = FALSE;
1247
1248         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1249         rule = MODEST_DIMMING_RULE (user_data);
1250
1251         /* Check common dimming rules */
1252         if (!dimmed) {
1253                 dimmed = _invalid_clipboard_selected (win, rule);
1254         }
1255
1256         /* Check window specific dimming rules */
1257         if (MODEST_IS_MAIN_WINDOW (win)) {
1258                 /* Get focused widget */
1259                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1260
1261                 if (MODEST_IS_HEADER_VIEW (focused)) {
1262                         if (!dimmed) {
1263                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1264                                 if (dimmed)
1265                                         modest_dimming_rule_set_notification (rule, "");
1266                         }
1267                         if (!dimmed) {
1268                                 dimmed = _selected_msg_sent_in_progress (win);
1269                                 if (dimmed)
1270                                         modest_dimming_rule_set_notification (rule, _(""));
1271                         }
1272                 }
1273                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1274                         if (!dimmed) {
1275                                 dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
1276                                 if (dimmed)
1277                                         modest_dimming_rule_set_notification (rule, _(""));
1278                         }
1279                 }
1280         }
1281
1282         return dimmed;
1283 }
1284
1285 gboolean
1286 modest_ui_dimming_rules_on_view_previous (ModestWindow *win, gpointer user_data)
1287 {
1288         ModestDimmingRule *rule = NULL;
1289         gboolean dimmed = FALSE;
1290
1291         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1292         rule = MODEST_DIMMING_RULE (user_data);
1293
1294         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1295
1296         /* Check dimmed rule */
1297         if (!dimmed) {
1298                 dimmed = _transfer_mode_enabled (win);
1299                 if (dimmed)
1300                         modest_dimming_rule_set_notification (
1301                                         rule, _("mail_ib_notavailable_downloading"));
1302         }
1303         if (!dimmed) {
1304                 dimmed = modest_msg_view_window_first_message_selected (
1305                                 MODEST_MSG_VIEW_WINDOW(win));
1306                 modest_dimming_rule_set_notification (rule, NULL);
1307         }
1308
1309         return dimmed;
1310 }
1311
1312 gboolean
1313 modest_ui_dimming_rules_on_view_next (ModestWindow *win, gpointer user_data)
1314 {
1315         ModestDimmingRule *rule = NULL;
1316         gboolean dimmed = FALSE;
1317
1318         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1319         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1320         rule = MODEST_DIMMING_RULE (user_data);
1321
1322         /* Check dimmed rule */
1323         if (!dimmed) {
1324                 dimmed = _transfer_mode_enabled (win);
1325                 if (dimmed)
1326                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1327         }
1328         if (!dimmed) {
1329                 dimmed = modest_msg_view_window_last_message_selected (MODEST_MSG_VIEW_WINDOW (win));
1330                 modest_dimming_rule_set_notification (rule, NULL);
1331         }
1332
1333         return dimmed;
1334 }
1335
1336
1337 gboolean
1338 modest_ui_dimming_rules_on_tools_smtp_servers (ModestWindow *win, gpointer user_data)
1339 {
1340         const gboolean dimmed =
1341                 !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
1342                         TRUE);
1343
1344         return dimmed;
1345 }
1346
1347 gboolean
1348 modest_ui_dimming_rules_on_cancel_sending (ModestWindow *win, gpointer user_data)
1349 {
1350         ModestDimmingRule *rule = NULL;
1351         TnyFolderType types[1];
1352         guint n_messages = 0;
1353         const DimmedState *state = NULL;
1354         gboolean dimmed = FALSE;
1355
1356         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1357         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1358         rule = MODEST_DIMMING_RULE (user_data);
1359         state = modest_window_get_dimming_state (win);
1360
1361         types[0] = TNY_FOLDER_TYPE_OUTBOX;
1362
1363         /* Check dimmed rules */
1364         if (!dimmed) {
1365                 dimmed = state->already_opened_msg;
1366                 n_messages = state->n_selected;
1367                 if (dimmed)
1368                         modest_dimming_rule_set_notification (rule, _("mcen_ib_message_unableto_cancel_send"));
1369         }
1370         if (!dimmed) {
1371                 dimmed = !_selected_folder_is_any_of_type (win, types, 1);
1372                 if (dimmed)
1373                         modest_dimming_rule_set_notification (rule, "");
1374         }
1375         if (!dimmed) {
1376                 dimmed = !_sending_in_progress (win);
1377                 if (dimmed)
1378                         modest_dimming_rule_set_notification (rule, "");
1379         }
1380
1381         return dimmed;
1382 }
1383
1384 gboolean
1385 modest_ui_dimming_rules_on_send_receive (ModestWindow *win, gpointer user_data)
1386 {
1387         ModestDimmingRule *rule = NULL;
1388         gboolean dimmed = FALSE;
1389
1390         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1391         rule = MODEST_DIMMING_RULE (user_data);
1392
1393         /* Check dimmed rule */
1394         if (!dimmed) {
1395                 dimmed = !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
1396                                                           TRUE);
1397                 if (dimmed)
1398                         modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
1399         }
1400
1401         return dimmed;
1402 }
1403
1404 gboolean
1405 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
1406 {
1407         ModestDimmingRule *rule = NULL;
1408         gboolean dimmed = FALSE;
1409
1410         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1411         rule = MODEST_DIMMING_RULE (user_data);
1412
1413         /* Check dimmed rule */
1414         if (!dimmed) {
1415                 GtkClipboard *clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
1416                 gchar *selection = NULL;
1417                 selection = gtk_clipboard_wait_for_text (clipboard);
1418
1419                 dimmed = !((selection != NULL) && (modest_text_utils_validate_recipient (selection, NULL)));
1420         }
1421
1422         return dimmed;
1423 }
1424
1425 /* *********************** static utility functions ******************** */
1426
1427
1428 static gboolean
1429 _selected_folder_not_writeable (ModestMainWindow *win)
1430 {
1431         GtkWidget *folder_view = NULL;
1432         TnyFolderStore *parent_folder = NULL;
1433         ModestTnyFolderRules rules;
1434         gboolean result = FALSE;
1435
1436         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1437
1438         /* Get folder view */
1439         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1440                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1441         /* If no folder view, always dimmed */
1442         if (!folder_view)
1443                 return TRUE;
1444
1445         /* Get selected folder as parent of new folder to create */
1446         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1447         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1448                 if (parent_folder)
1449                         g_object_unref (parent_folder);
1450                 return TRUE;
1451         }
1452
1453         /* Check dimmed rule */
1454         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1455         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
1456
1457         /* free */
1458         g_object_unref (parent_folder);
1459
1460         return result;
1461 }
1462
1463 static gboolean
1464 _selected_folder_is_root_or_inbox (ModestMainWindow *win)
1465 {
1466         TnyFolderType types[2];
1467         gboolean result = FALSE;
1468
1469         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1470
1471         types[0] = TNY_FOLDER_TYPE_ROOT;
1472         types[1] = TNY_FOLDER_TYPE_INBOX;
1473
1474         /* Check folder type */
1475         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 2);
1476
1477         /* Check pop and MMC accounts */
1478         if (!result) {
1479                 result = _selected_folder_is_MMC_or_POP_root (win);
1480         }
1481
1482         return result;
1483 }
1484
1485
1486 static gboolean
1487 _selected_folder_is_root (ModestMainWindow *win)
1488 {
1489         TnyFolderType types[1];
1490         gboolean result = FALSE;
1491
1492         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1493
1494         /* All accounts are root items: */
1495         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1496                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1497         if (folder_view) {
1498                 gboolean is_account = FALSE;
1499                 TnyFolderStore *folder_store =
1500                         modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1501                 if (folder_store) {
1502                         is_account = TNY_IS_ACCOUNT (folder_store);
1503                         g_object_unref (folder_store);
1504                         folder_store = NULL;
1505                 }
1506
1507                 if (is_account)
1508                         return TRUE;
1509         }
1510
1511         /* Try something more precise: */
1512         types[0] = TNY_FOLDER_TYPE_ROOT;
1513
1514         /* Check folder type */
1515         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 1);
1516
1517         /* Check pop and MMC accounts */
1518         if (!result) {
1519                 result = _selected_folder_is_MMC_or_POP_root (win);
1520         }
1521
1522         return result;
1523 }
1524
1525 static gboolean
1526 _selected_folder_is_MMC_or_POP_root (ModestMainWindow *win)
1527 {
1528         GtkWidget *folder_view = NULL;
1529         TnyFolderStore *parent_folder = NULL;
1530         gboolean result = FALSE;
1531
1532         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1533                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1534         if (!folder_view)
1535                 return FALSE;
1536
1537         /* Get selected folder as parent of new folder to create */
1538         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1539         if (!parent_folder)
1540                 return TRUE;
1541
1542         if (TNY_IS_ACCOUNT (parent_folder)) {
1543                 /* If it's the local account then do not dim */
1544                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
1545                         result = FALSE;
1546                 } else {
1547                                 /* If it's the MMC root folder then dim it */
1548                         if (!strcmp (tny_account_get_id (TNY_ACCOUNT (parent_folder)), MODEST_MMC_ACCOUNT_ID)) {
1549                                         result = TRUE;
1550                         } else {
1551                                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
1552                                 /* If it's POP then dim */
1553                                 result = (modest_protocol_info_get_transport_store_protocol (proto_str) ==
1554                                                   MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
1555                         }
1556                 }
1557         }
1558         g_object_unref (parent_folder);
1559
1560         return result;
1561 }
1562
1563 static gboolean
1564 _header_view_is_all_selected (ModestMainWindow *win)
1565 {
1566         const DimmedState *state = NULL;
1567
1568         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1569
1570         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
1571
1572         return state->all_selected;
1573 }
1574
1575 static gboolean
1576 _selected_folder_is_empty (ModestMainWindow *win)
1577 {
1578         GtkWidget *folder_view = NULL;
1579         TnyFolderStore *folder = NULL;
1580         gboolean result = FALSE;
1581
1582         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1583
1584         /* Get folder view */
1585         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1586                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1587         /* If no folder view, always dimmed */
1588         if (!folder_view)
1589                 return TRUE;
1590
1591         /* Get selected folder as parent of new folder to create */
1592         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1593         if (!(folder && TNY_IS_FOLDER(folder))) {
1594                 if (folder)
1595                         g_object_unref (folder);
1596                 return TRUE;
1597         }
1598
1599         /* Check folder type */
1600         result = tny_folder_get_all_count (TNY_FOLDER (folder)) == 0;
1601
1602         /* free */
1603         g_object_unref (folder);
1604
1605         return result;
1606 }
1607
1608 static gboolean
1609 _folder_view_has_focus (ModestWindow *win)
1610 {
1611         GtkWidget *folder_view = NULL;
1612
1613         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1614
1615         /* Get folder view */
1616         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1617                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1618         if (!folder_view)
1619                 return FALSE;
1620
1621         if (gtk_widget_is_focus(folder_view))
1622                 return TRUE;
1623
1624         return FALSE;
1625 }
1626
1627 static gboolean
1628 _selected_folder_is_same_as_source (ModestWindow *win)
1629 {
1630         ModestEmailClipboard *clipboard = NULL;
1631         GtkWidget *folder_view = NULL;
1632         TnyFolderStore *folder = NULL;
1633         gboolean result = FALSE;
1634
1635         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1636
1637         /* Get folder view */
1638         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1639                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1640         if (!folder_view)
1641                 return FALSE;
1642
1643         /* Get selected folder as destination folder */
1644         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1645         if (!(folder && TNY_IS_FOLDER(folder))) {
1646                 result = FALSE;
1647                 goto frees;
1648         }
1649
1650         /* Check clipboard is cleared */
1651         clipboard = modest_runtime_get_email_clipboard ();
1652         if (modest_email_clipboard_cleared (clipboard)) {
1653                 result = FALSE;
1654                 goto frees;
1655         }
1656
1657         /* Check source folder */
1658         result = modest_email_clipboard_check_source_folder (clipboard,
1659                                                              (const TnyFolder *) folder);
1660
1661         /* Free */
1662  frees:
1663         g_object_unref (folder);
1664
1665         return result;
1666 }
1667
1668 static gboolean
1669 _selected_folder_is_any_of_type (ModestWindow *win,
1670                                  TnyFolderType types[],
1671                                  guint ntypes)
1672 {
1673         GtkWidget *folder_view = NULL;
1674         TnyFolderStore *folder = NULL;
1675         TnyFolderType folder_type;
1676         guint i=0;
1677         gboolean result = FALSE;
1678
1679         /*Get current folder */
1680         if (MODEST_IS_MAIN_WINDOW(win)) {
1681
1682                 /* Get folder view */
1683                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1684                                                                    MODEST_WIDGET_TYPE_FOLDER_VIEW);
1685                 /* If no folder view, always dimmed */
1686                 if (!folder_view)
1687                         return FALSE;
1688
1689                 /* Get selected folder as parent of new folder to create */
1690                 folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1691
1692                 if (!(folder && TNY_IS_FOLDER(folder))) {
1693                         if (folder)
1694                                 g_object_unref (folder);
1695                         return FALSE;
1696                 }
1697
1698                 /* Check folder type */
1699                 result = _folder_is_any_of_type (TNY_FOLDER(folder), types, ntypes);
1700         }
1701         else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
1702                 folder_type = modest_msg_view_window_get_folder_type (MODEST_MSG_VIEW_WINDOW (win));
1703                 for (i=0; i < ntypes; i++) {
1704                         result = result || folder_type == types[i];
1705                 }
1706         }
1707
1708
1709         /* free */
1710         g_object_unref (folder);
1711
1712         return result;
1713 }
1714
1715 static gboolean
1716 _folder_is_any_of_type (TnyFolder *folder,
1717                         TnyFolderType types[],
1718                         guint ntypes)
1719 {
1720         TnyFolderType folder_type;
1721         gboolean result = FALSE;
1722         guint i;
1723
1724         g_return_val_if_fail (TNY_IS_FOLDER(folder), FALSE);
1725
1726         /* Get folder type */
1727         folder_type = modest_tny_folder_guess_folder_type (folder);
1728
1729         /* Check foler type */
1730         for (i=0; i < ntypes; i++) {
1731                 result = result || folder_type == types[i];
1732         }
1733
1734         return result;
1735 }
1736
1737 static gboolean
1738 _clipboard_is_empty (ModestWindow *win)
1739 {
1740         gboolean result = FALSE;
1741
1742         if (MODEST_IS_MAIN_WINDOW (win)) {
1743                 ModestEmailClipboard *clipboard = NULL;
1744                 clipboard = modest_runtime_get_email_clipboard ();
1745                 if (modest_email_clipboard_cleared (clipboard))
1746                  result = TRUE;
1747         }
1748
1749         return result;
1750 }
1751
1752 static gboolean
1753 _invalid_clipboard_selected (ModestWindow *win,
1754                              ModestDimmingRule *rule)
1755 {
1756         const DimmedState *state = NULL;
1757         gboolean result = FALSE;
1758
1759         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1760         state = modest_window_get_dimming_state (win);
1761
1762         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1763                 GtkClipboard *clipboard = NULL;
1764                 gchar *selection = NULL;
1765                 GtkWidget *focused = NULL;
1766
1767                 /* Get clipboard selection*/
1768                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
1769                 selection = gtk_clipboard_wait_for_text (clipboard);
1770
1771                 /* Get focuesed widget */
1772                 focused = gtk_window_get_focus (GTK_WINDOW (win));
1773
1774                 /* Check dimming */
1775                 result = ((selection == NULL) ||
1776                           (MODEST_IS_ATTACHMENTS_VIEW (focused)));
1777
1778                 if (result)
1779                         modest_dimming_rule_set_notification (rule, "");
1780
1781                 if (selection != NULL)
1782                         g_free(selection);
1783         }
1784         else if (MODEST_IS_MAIN_WINDOW (win)) {
1785                 /* Check dimming */
1786                 result = state->n_selected == 0;
1787                 if (result)
1788                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
1789         }
1790
1791         return result;
1792 }
1793
1794
1795 static gboolean
1796 _invalid_attach_selected (ModestWindow *win,
1797                           gboolean unique,
1798                           gboolean for_view,
1799                           gboolean for_remove,
1800                           ModestDimmingRule *rule)
1801 {
1802         GList *attachments, *node;
1803         gint n_selected;
1804         TnyHeaderFlags flags;
1805         gboolean nested_attachments = FALSE;
1806         gboolean selected_messages = FALSE;
1807         const DimmedState *state = NULL;
1808         gboolean result = FALSE;
1809
1810         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1811         state = modest_window_get_dimming_state (win);
1812
1813         if (MODEST_IS_MAIN_WINDOW (win)) {
1814                 flags = TNY_HEADER_FLAG_ATTACHMENTS;
1815                 if (!result)
1816                         result = !state->any_has_attachments;
1817         }
1818         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1819
1820                 /* Get selected atachments */
1821                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1822                 n_selected = g_list_length (attachments);
1823
1824                 /* Check unique */
1825                 if (!result) {
1826                         if (unique)
1827                                 result = n_selected != 1;
1828                         else
1829
1830                                 result = n_selected < 1;
1831                 }
1832
1833                 /* Check attached type (view operation not required) */
1834                 if (!result && !for_view)  {
1835                         for (node = attachments; node != NULL && !result; node = g_list_next (node)) {
1836                                 TnyMimePart *mime_part = TNY_MIME_PART (node->data);
1837                                 TnyList *nested_list = tny_simple_list_new ();
1838                                 if (!for_remove && TNY_IS_MSG (mime_part)) {
1839                                         selected_messages = TRUE;
1840                                         result = TRUE;
1841                                 }
1842                                 tny_mime_part_get_parts (mime_part, nested_list);
1843                                 if (!for_remove && tny_list_get_length (nested_list) > 0) {
1844                                         nested_attachments = TRUE;
1845                                         result = TRUE;
1846                                 }
1847                                 g_object_unref (nested_list);
1848                         }
1849                 }
1850
1851                 /* Set notifications */
1852                 if (result && rule != NULL) {
1853                         if (selected_messages) {
1854                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_save_attach_mail"));
1855                         } else if (nested_attachments) {
1856                                 modest_dimming_rule_set_notification (rule, _("FIXME:unable to save attachments with nested elements"));
1857                         } else if (n_selected == 0) {
1858                                 modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1859                         } else if (unique) {
1860                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_display_more"));
1861                         }
1862                 }
1863
1864                 /* Free */
1865                 g_list_free (attachments);
1866         }
1867
1868         return result;
1869 }
1870
1871 static gboolean
1872 _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule)
1873 {
1874         GList *attachments = NULL, *node;
1875         gint purged = 0;
1876         gint n_attachments = 0;
1877         gboolean result = FALSE;
1878
1879         /* This should check if _all_ the attachments are already purged. If only some
1880          * of them are purged, then it does not cause dim as there's a confirmation dialog
1881          * for removing only local attachments */
1882
1883         /* Get selected atachments */
1884         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1885                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1886         } else if (MODEST_IS_MAIN_WINDOW (win)) {
1887                 /* If we're in main window, we won't know if there are already purged attachments */
1888                 return FALSE;
1889         }
1890
1891         if (attachments == NULL)
1892                 return FALSE;
1893
1894         for (node = attachments; node != NULL; node = g_list_next (node)) {
1895                 TnyMimePart *mime_part = TNY_MIME_PART (node->data);
1896                 if (tny_mime_part_is_purged (mime_part)) {
1897                         purged++;
1898                 }
1899                 n_attachments++;
1900         }
1901
1902         /* Free */
1903         g_list_free (attachments);
1904
1905         if (all)
1906                 result = (purged == n_attachments);
1907         else
1908                 result = (purged > 0);
1909
1910         if (result && (rule != NULL))
1911                 modest_dimming_rule_set_notification (rule, _("mail_ib_attachment_already_purged"));
1912
1913         return result;
1914 }
1915
1916 static gboolean
1917 _invalid_msg_selected (ModestMainWindow *win,
1918                        gboolean unique,
1919                        ModestDimmingRule *rule)
1920 {
1921         GtkWidget *folder_view = NULL;
1922         const DimmedState *state = NULL;
1923         gboolean result = FALSE;
1924
1925         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1926         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (rule), FALSE);
1927         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
1928
1929         /* Get folder view to check focus */
1930         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
1931                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1932
1933         /* Check dimmed rule (TODO: check focus on widgets */
1934         if (!result) {
1935                 result = ((state->n_selected == 0 ) ||
1936                           (gtk_widget_is_focus (folder_view)));
1937                 if (result)
1938                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
1939         }
1940         if (!result && unique) {
1941                 result = state->n_selected > 1;
1942                 if (result)
1943                         modest_dimming_rule_set_notification (rule, _("mcen_ib_select_one_message"));
1944         }
1945
1946         return result;
1947 }
1948
1949
1950 static gboolean
1951 _msg_download_in_progress (ModestMsgViewWindow *win)
1952 {
1953         gboolean result = FALSE;
1954
1955         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW (win), FALSE);
1956
1957         result = modest_msg_view_window_toolbar_on_transfer_mode (win);
1958
1959         return result;
1960 }
1961
1962 static gboolean
1963 _msg_download_completed (ModestMainWindow *win)
1964 {
1965         const DimmedState *state = modest_window_get_dimming_state (MODEST_WINDOW(win));
1966         return state->any_marked_as_cached;
1967 }
1968
1969 static void
1970 fill_list_of_caches (gpointer key, gpointer value, gpointer userdata)
1971 {
1972         GSList **send_queues = (GSList **) userdata;
1973         *send_queues = g_slist_prepend (*send_queues, value);
1974 }
1975
1976 static gboolean
1977 _selected_msg_sent_in_progress (ModestWindow *win)
1978 {
1979         const DimmedState *state = modest_window_get_dimming_state (win);
1980         return state->sent_in_progress;
1981 }
1982
1983
1984 static gboolean
1985 _sending_in_progress (ModestWindow *win)
1986 {
1987         gboolean result = FALSE;
1988
1989         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW (win), FALSE);
1990
1991         /* Check if send operation is in progress */
1992         result = modest_main_window_send_receive_in_progress (MODEST_MAIN_WINDOW (win));
1993
1994         return result;
1995 }
1996
1997 static gboolean
1998 _invalid_folder_for_purge (ModestWindow *win,
1999                            ModestDimmingRule *rule)
2000 {
2001         TnyMsg *msg = NULL;
2002         TnyFolder *folder = NULL;
2003         TnyAccount *account = NULL;
2004         gboolean result = FALSE;
2005
2006         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2007
2008                 /* Get folder and account of message */
2009                 msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2010                 g_return_val_if_fail(msg != NULL, TRUE);
2011                 folder = tny_msg_get_folder (msg);
2012                 if (folder == NULL) {
2013                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
2014                         goto frees;
2015                 }
2016                 g_object_unref (msg);
2017         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2018                 GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2019                                                                               MODEST_WIDGET_TYPE_FOLDER_VIEW);
2020                 if (!folder_view)
2021                         return FALSE;
2022                 folder = TNY_FOLDER (modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view)));
2023                 if (folder == NULL || ! TNY_IS_FOLDER (folder))
2024                         goto frees;
2025         } else {
2026                 g_return_val_if_reached (FALSE);
2027         }
2028         account = modest_tny_folder_get_account (folder);
2029         if (account == NULL) goto frees;
2030
2031         /* Check account */
2032         if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (account))) {
2033                 TnyFolderType types[2];
2034                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
2035                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
2036
2037                 if (_selected_folder_is_any_of_type (win, types, 2)) {
2038                         result = TRUE;
2039                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_editable_msg"));
2040                 } else {
2041                         /* We're currently disabling purge in any local store */
2042                         result = TRUE;
2043                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
2044                 }
2045         } else {
2046                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (account));
2047                 /* If it's POP then dim */
2048                 if (modest_protocol_info_get_transport_store_protocol (proto_str) ==
2049                     MODEST_PROTOCOL_STORE_POP) {
2050                         GList *attachments = NULL;
2051                         gint n_selected = 0;
2052                         result = TRUE;
2053
2054                         /* TODO: This check is here to prevent a gwarning, but this looks like a logic error.
2055                          * murrayc */
2056                         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2057                                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2058                                 n_selected = g_list_length (attachments);
2059                                 g_list_free (attachments);
2060                         }
2061
2062                         modest_dimming_rule_set_notification (rule,
2063                                                               ngettext ("mail_ib_unable_to_pure_attach_pop_mail_singular",
2064                                                                         "mail_ib_unable_to_pure_attach_pop_mail_plural",
2065                                                                         n_selected));
2066                 }
2067         }
2068
2069 frees:
2070         if (folder != NULL)
2071                 g_object_unref (folder);
2072         if (account != NULL)
2073                 g_object_unref (account);
2074
2075         return result;
2076 }
2077
2078 static gboolean
2079 _transfer_mode_enabled (ModestWindow *win)
2080 {
2081         gboolean result = FALSE;
2082
2083         /* Check dimming */
2084         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2085                 result = modest_msg_view_window_transfer_mode_enabled (MODEST_MSG_VIEW_WINDOW (win));
2086         } else if (MODEST_IS_MAIN_WINDOW(win)) {
2087                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW (win));
2088         } else {
2089                 g_warning("_transfer_mode_enabled called with wrong window type");
2090         }
2091
2092         return result;
2093 }
2094