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
 392         /* if not the folder is selected then dim */
 393         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 394                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
 395         if (folder_view && !gtk_widget_is_focus (folder_view))
 396                 dimmed = TRUE;
 397
 398         g_object_unref (parent_folder);
 399
 400         return dimmed;
 401 }
 402
 403 gboolean
 404 modest_ui_dimming_rules_on_delete (ModestWindow *win, gpointer user_data)
 405 {
 406         ModestDimmingRule *rule = NULL;
 407         GtkWidget *folder_view = NULL;
 408         GtkWidget *header_view = NULL;
 409         gboolean dimmed = FALSE;
 410
 411         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 412         rule = MODEST_DIMMING_RULE (user_data);
 413
 414         if (MODEST_IS_MAIN_WINDOW (win)) {
 415                 /* Get the folder view */
 416                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 417                                                                    MODEST_WIDGET_TYPE_FOLDER_VIEW);
 418
 419                 /* Get header view */
 420                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 421                                                            MODEST_WIDGET_TYPE_HEADER_VIEW);
 422
 423                 if (header_view && gtk_widget_is_focus (header_view))
 424                         dimmed = modest_ui_dimming_rules_on_delete_msg (win, rule);
 425
 426                 if (folder_view && gtk_widget_is_focus (folder_view))
 427                         dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 428
 429                 if (header_view && folder_view &&
 430                     !gtk_widget_is_focus (header_view) &&
 431                     !gtk_widget_is_focus (folder_view)) {
 432                         dimmed = TRUE;
 433                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ckct_ib_nothing_to_delete"));
 434                 }
 435         } else {
 436                 dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 437         }
 438
 439         return dimmed;
 440 }
 441
 442
 443
 444 gboolean
 445 modest_ui_dimming_rules_on_delete_folder (ModestWindow *win, gpointer user_data)
 446 {
 447         ModestDimmingRule *rule = NULL;
 448         TnyFolderType types[6];
 449         gboolean dimmed = FALSE;
 450
 451         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 452         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 453         rule = MODEST_DIMMING_RULE (user_data);
 454
 455         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 456         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 457         types[2] = TNY_FOLDER_TYPE_SENT;
 458         types[3] = TNY_FOLDER_TYPE_INBOX;
 459         types[4] = TNY_FOLDER_TYPE_ROOT;
 460         types[5] = TNY_FOLDER_TYPE_ARCHIVE;
 461
 462
 463         /* Check dimmed rule */
 464         if (!dimmed) {
 465                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 466                 if (dimmed)
 467                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 468         }
 469         if (!dimmed) {
 470                 dimmed = _selected_folder_is_any_of_type (win, types, 6);
 471                 if (dimmed)
 472                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 473         }
 474         if (!dimmed) {
 475                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 476                 if (dimmed)
 477                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 478         }
 479         if (!dimmed) {
 480                 dimmed = _selected_folder_is_MMC_or_POP_root (MODEST_MAIN_WINDOW(win));
 481                 if (dimmed)
 482                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 483         }
 484         if (!dimmed) {
 485                 dimmed = _transfer_mode_enabled (win);
 486                 if (dimmed)
 487                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 488         }
 489
 490         return dimmed;
 491 }
 492
 493 gboolean
 494 modest_ui_dimming_rules_on_sort (ModestWindow *win, gpointer user_data)
 495 {
 496         ModestDimmingRule *rule = NULL;
 497         gboolean dimmed = FALSE;
 498
 499         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 500         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 501         rule = MODEST_DIMMING_RULE (user_data);
 502
 503         /* Check dimmed rule */
 504         if (!dimmed) {
 505                 dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
 506                 modest_dimming_rule_set_notification (rule, _CS("ckdg_ib_nothing_to_sort"));
 507         }
 508
 509         if (!dimmed) {
 510                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 511                 modest_dimming_rule_set_notification (rule, _CS("ckdg_ib_nothing_to_sort"));
 512         }
 513
 514         return dimmed;
 515
 516 }
 517
 518 gboolean
 519 modest_ui_dimming_rules_on_rename_folder (ModestWindow *win, gpointer user_data)
 520 {
 521         ModestDimmingRule *rule = NULL;
 522         TnyFolderType types[4];
 523         gboolean dimmed = FALSE;
 524
 525         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 526         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 527         rule = MODEST_DIMMING_RULE (user_data);
 528
 529         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 530         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 531         types[2] = TNY_FOLDER_TYPE_SENT;
 532         types[3] = TNY_FOLDER_TYPE_ARCHIVE;
 533
 534         /* Check dimmed rule */
 535         if (!dimmed) {
 536                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 537                 if (dimmed)
 538                         modest_dimming_rule_set_notification (rule, "");
 539         }
 540         if (!dimmed) {
 541                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 542                 if (dimmed)
 543                         modest_dimming_rule_set_notification (rule, "");
 544         }
 545         if (!dimmed) {
 546                 dimmed = _selected_folder_is_any_of_type (win, types, 4);
 547                 if (dimmed)
 548                         modest_dimming_rule_set_notification (rule, "");
 549         }
 550
 551         return dimmed;
 552 }
 553
 554 gboolean
 555 modest_ui_dimming_rules_on_open_msg (ModestWindow *win, gpointer user_data)
 556 {
 557         ModestDimmingRule *rule = NULL;
 558         gboolean dimmed = FALSE;
 559         const DimmedState *state = NULL;
 560
 561         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 562         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 563         rule = MODEST_DIMMING_RULE (user_data);
 564         state = modest_window_get_dimming_state (win);
 565
 566         /* Check dimmed rule */
 567         if (!dimmed) {
 568                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 569         }
 570         if (!dimmed) {
 571                 dimmed = state->any_marked_as_deleted;
 572                 if (dimmed)
 573                         modest_dimming_rule_set_notification (rule, _("mcen_ib_message_already_deleted"));
 574         }
 575         if (!dimmed) {
 576                 dimmed = _selected_msg_sent_in_progress (win);
 577                 if (dimmed)
 578                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_open_while_sent"));
 579         }
 580
 581         return dimmed;
 582 }
 583
 584 gboolean
 585 modest_ui_dimming_rules_on_reply_msg (ModestWindow *win, gpointer user_data)
 586 {
 587         ModestDimmingRule *rule = NULL;
 588         gboolean dimmed = FALSE;
 589         TnyFolderType types[3];
 590
 591         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 592         rule = MODEST_DIMMING_RULE (user_data);
 593
 594         /* main window dimming rules */
 595         if (MODEST_IS_MAIN_WINDOW(win)) {
 596
 597                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 598                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 599                 types[2] = TNY_FOLDER_TYPE_ROOT;
 600
 601                 /* Check dimmed rule */
 602                 if (!dimmed) {
 603                         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 604                         if (dimmed)
 605                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 606                 }
 607                 if (!dimmed) {
 608                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 609                         if (dimmed)
 610                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_nothing_to_reply"));
 611                 }
 612                 if (!dimmed) {
 613                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, rule);
 614                 }
 615         /* msg view window dimming rules */
 616         } else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
 617
 618                 /* Check dimmed rule */
 619                 if (!dimmed) {
 620                         dimmed = _transfer_mode_enabled (win);
 621                         if (dimmed)
 622                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 623                 }
 624                 if (!dimmed) {
 625                         dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW (win));
 626                         if (dimmed)
 627                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 628                 }
 629         }
 630
 631         return dimmed;
 632 }
 633
 634
 635 gboolean
 636 modest_ui_dimming_rules_on_contents_msg (ModestWindow *win, gpointer user_data)
 637 {
 638         ModestDimmingRule *rule = NULL;
 639         gboolean dimmed = FALSE;
 640
 641         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 642         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 643         rule = MODEST_DIMMING_RULE (user_data);
 644
 645         /* Check dimmed rule */
 646         if (!dimmed) {
 647                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 648         }
 649         if (!dimmed) {
 650                 dimmed = _msg_download_completed (MODEST_MAIN_WINDOW(win));
 651                 if (dimmed)
 652                         modest_dimming_rule_set_notification (rule, "");
 653         }
 654
 655         return dimmed;
 656 }
 657
 658 gboolean
 659 modest_ui_dimming_rules_always_dimmed (ModestWindow *win, gpointer user_data)
 660 {
 661         gboolean dimmed = FALSE;
 662
 663         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 664
 665         /* Check dimmed rule */
 666         if (!dimmed)
 667                 dimmed = TRUE;
 668
 669         return dimmed;
 670 }
 671
 672 gboolean
 673 modest_ui_dimming_rules_on_delete_msg (ModestWindow *win, gpointer user_data)
 674 {
 675         ModestDimmingRule *rule = NULL;
 676         guint n_messages = 0;
 677         const DimmedState *state = NULL;
 678         gboolean dimmed = FALSE;
 679
 680         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 681         rule = MODEST_DIMMING_RULE (user_data);
 682         state = modest_window_get_dimming_state (win);
 683
 684         /* Check dimmed rule */
 685         if (MODEST_IS_MAIN_WINDOW (win)) {
 686                 if (!dimmed) {
 687                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 688                         if (dimmed)
 689                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_nothing_to_delete"));
 690                 }
 691                 if (!dimmed) {
 692                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 693                 }
 694                 if (!dimmed) {
 695                         dimmed = state->already_opened_msg;
 696                         n_messages = state->n_selected;
 697                         if (dimmed) {
 698                                 gchar *num = g_strdup_printf ("%d", n_messages);
 699                                 gchar *message = g_strdup_printf(_("mcen_nc_unable_to_delete_n_messages"), num);
 700                                 modest_dimming_rule_set_notification (rule, message);
 701                                 g_free(message);
 702                                 g_free(num);
 703                         }
 704
 705                 }
 706                 if (!dimmed) {
 707                         dimmed = state->any_marked_as_deleted;
 708                         if (dimmed) {
 709                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_message_already_deleted"));
 710                         }
 711                 }
 712                 if (!dimmed) {
 713                         dimmed = state->sent_in_progress;
 714                         if (dimmed)
 715                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 716                 }
 717         }
 718         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
 719                 if (!dimmed) {
 720                         dimmed = _transfer_mode_enabled (win);
 721                         if (dimmed)
 722                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 723                 }
 724                 if (!dimmed) {
 725                         dimmed = state->any_marked_as_deleted;
 726                         if (dimmed)
 727                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_message_already_deleted"));
 728                 }
 729
 730                 /* The delete button should be dimmed when viewing an attachment,
 731                  * but should be enabled when viewing a message from the list,
 732                  * or when viewing a search result.
 733                  */
 734                 if (!dimmed) {
 735                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
 736                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW(win));
 737                                 if (dimmed) {
 738                                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 739                                 }
 740                         }
 741                 }
 742         }
 743
 744         return dimmed;
 745 }
 746
 747 gboolean
 748 modest_ui_dimming_rules_on_details (ModestWindow *win, gpointer user_data)
 749 {
 750         ModestDimmingRule *rule = NULL;
 751         GtkWidget *header_view = NULL;
 752         gboolean dimmed = FALSE;
 753
 754         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 755         rule = MODEST_DIMMING_RULE (user_data);
 756
 757         /* main window dimming rules */
 758         if (MODEST_IS_MAIN_WINDOW(win)) {
 759
 760                 /* Check dimmed rule */
 761                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 762                                                                    MODEST_WIDGET_TYPE_HEADER_VIEW);
 763
 764                 /* If the header view has the focus: */
 765                 if (header_view && gtk_widget_is_focus (header_view)) {
 766                         /* Check dimmed rule */
 767                         if (!dimmed)
 768                                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 769                 }
 770                 else {
 771                         /* If the folder view has the focus: */
 772                         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 773                                 MODEST_WIDGET_TYPE_FOLDER_VIEW);
 774                         if (folder_view && gtk_widget_is_focus (folder_view)) {
 775                                 TnyFolderStore *folder_store
 776                                         = modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
 777                                 if (folder_store) {
 778                                         /* Only enable for folders, not accounts,
 779                                          * though the UI spec is not clear about that.
 780                                          * If we enable this for accounts then we must
 781                                          * add code to handle them in modest_ui_actions_on_details(). */
 782                                         if (!TNY_IS_FOLDER(folder_store)) {
 783                                                 dimmed = TRUE;
 784                                                 modest_dimming_rule_set_notification (rule, "");
 785                                         }
 786
 787                                         g_object_unref (folder_store);
 788                                 }
 789                         }
 790
 791                 }
 792
 793         /* msg view window dimming rules */
 794         } else {
 795
 796                 /* Check dimmed rule */
 797                 if (!dimmed) {
 798                         if (MODEST_IS_MSG_VIEW_WINDOW (win))
 799                                 dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW (win));
 800                         if (dimmed)
 801                                 modest_dimming_rule_set_notification (rule, "");
 802                 }
 803         }
 804
 805         return dimmed;
 806 }
 807
 808
 809 gboolean
 810 modest_ui_dimming_rules_on_mark_as_read_msg (ModestWindow *win, gpointer user_data)
 811 {
 812         ModestDimmingRule *rule = NULL;
 813         TnyHeaderFlags flags;
 814         const DimmedState *state = NULL;
 815         gboolean dimmed = FALSE;
 816
 817         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 818         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 819         rule = MODEST_DIMMING_RULE (user_data);
 820         state = modest_window_get_dimming_state (win);
 821
 822         flags = TNY_HEADER_FLAG_SEEN;
 823
 824         /* Check dimmed rule */
 825         if (!dimmed) {
 826                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 827         }
 828         if (!dimmed) {
 829                 dimmed = state->all_marked_as_seen;
 830                 if (dimmed)
 831                         modest_dimming_rule_set_notification (rule, "");
 832         }
 833
 834         return dimmed;
 835 }
 836
 837 gboolean
 838 modest_ui_dimming_rules_on_mark_as_unread_msg (ModestWindow *win, gpointer user_data)
 839 {
 840         ModestDimmingRule *rule = NULL;
 841         TnyHeaderFlags flags;
 842         const DimmedState *state = NULL;
 843         gboolean dimmed = FALSE;
 844
 845         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 846         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 847         rule = MODEST_DIMMING_RULE (user_data);
 848         state = modest_window_get_dimming_state (win);
 849
 850         flags = TNY_HEADER_FLAG_SEEN;
 851
 852         /* Check dimmed rule */
 853         if (!dimmed)
 854                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 855         if (!dimmed) {
 856                 dimmed = !state->any_marked_as_seen;
 857                 if (dimmed)
 858                         modest_dimming_rule_set_notification (rule, "");
 859         }
 860
 861         return dimmed;
 862 }
 863
 864 gboolean
 865 modest_ui_dimming_rules_on_move_to (ModestWindow *win, gpointer user_data)
 866 {
 867         ModestDimmingRule *rule = NULL;
 868         gboolean dimmed = FALSE;
 869
 870         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 871         rule = MODEST_DIMMING_RULE (user_data);
 872
 873         if (MODEST_IS_MAIN_WINDOW (win))
 874                 dimmed = modest_ui_dimming_rules_on_main_window_move_to (win, user_data);
 875         else if (MODEST_IS_MSG_VIEW_WINDOW (win))
 876                  dimmed = modest_ui_dimming_rules_on_view_window_move_to (win, user_data);
 877
 878         return dimmed;
 879 }
 880
 881
 882 gboolean
 883 modest_ui_dimming_rules_on_main_window_move_to (ModestWindow *win, gpointer user_data)
 884 {
 885         GtkWidget *folder_view = NULL;
 886         ModestDimmingRule *rule = NULL;
 887         guint n_messages = 0;
 888         const DimmedState *state = NULL;
 889         gboolean dimmed = FALSE;
 890
 891         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
 892         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 893         rule = MODEST_DIMMING_RULE (user_data);
 894         state = modest_window_get_dimming_state (win);
 895
 896         /* Get the folder view */
 897         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 898                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
 899
 900
 901         /* Check diming rules for folders transfer  */
 902         if (gtk_widget_is_focus (folder_view)) {
 903                 TnyFolderType types[5];
 904
 905                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 906                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 907                 types[2] = TNY_FOLDER_TYPE_SENT;
 908                 types[3] = TNY_FOLDER_TYPE_ROOT;
 909                 types[4] = TNY_FOLDER_TYPE_INBOX;
 910
 911                 /* Apply folder rules */
 912                 if (!dimmed) {
 913                         dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 914                         if (dimmed)
 915                                 modest_dimming_rule_set_notification (rule, _("emev_bd_unabletomove_items"));
 916                 }
 917                 if (!dimmed) {
 918                         dimmed = _selected_folder_is_any_of_type (win, types, 5);
 919                         if (dimmed)
 920                                 modest_dimming_rule_set_notification (rule, _("emev_bd_unabletomove_itemsr"));
 921                 }
 922         }
 923
 924         /* Check diming rules for messages transfer  */
 925         if (!dimmed) {
 926                 dimmed = state->already_opened_msg;
 927                 n_messages = state->n_selected;
 928                 if (dimmed) {
 929                         gchar *message = g_strdup_printf(_("emev_bd_unabletomove_items"), n_messages);
 930                         modest_dimming_rule_set_notification (rule, message);
 931                         g_free(message);
 932                 }
 933         }
 934         if (!dimmed) {
 935                 if (!gtk_widget_is_focus (folder_view))
 936                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 937
 938         }
 939         if (!dimmed) {
 940                 dimmed = _selected_msg_sent_in_progress (win);
 941                 if (dimmed)
 942                         modest_dimming_rule_set_notification (rule, _("sfil_ib_unable_to_move_selected_items"));
 943         }
 944
 945         return dimmed;
 946 }
 947
 948 gboolean
 949 modest_ui_dimming_rules_on_view_window_move_to (ModestWindow *win, gpointer user_data)
 950 {
 951         ModestDimmingRule *rule = NULL;
 952         gboolean dimmed = FALSE;
 953
 954         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 955         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 956         rule = MODEST_DIMMING_RULE (user_data);
 957
 958         /* Check dimmed rule */
 959         if (!dimmed) {
 960                 dimmed = _transfer_mode_enabled (win);
 961                 if (dimmed)
 962                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 963         }
 964
 965         if (!dimmed) {
 966                 if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
 967                         /* The move_to button should be dimmed when viewing an attachment,
 968                          * but should be enabled when viewing a message from the list,
 969                          * or when viewing a search result.
 970                          */
 971                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
 972                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
 973                         }
 974                 }
 975
 976                 if (dimmed)
 977                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_move_mail_attachment"));
 978         }
 979
 980         return dimmed;
 981 }
 982
 983 gboolean
 984 modest_ui_dimming_rules_on_find_msg (ModestWindow *win, gpointer user_data)
 985 {
 986         ModestDimmingRule *rule = NULL;
 987         gboolean dimmed = FALSE;
 988
 989         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 990         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 991         rule = MODEST_DIMMING_RULE (user_data);
 992
 993         /* Check dimmed rule */
 994         if (!dimmed) {
 995                 dimmed = _transfer_mode_enabled (win);
 996                 if (dimmed)
 997                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 998         }
 999
1000         return dimmed;
1001 }
1002
1003 gboolean
1004 modest_ui_dimming_rules_on_paste (ModestWindow *win, gpointer user_data)
1005 {
1006         ModestDimmingRule *rule = NULL;
1007         TnyFolderType types[3];
1008         gboolean dimmed = FALSE;
1009
1010         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1011         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1012         rule = MODEST_DIMMING_RULE (user_data);
1013
1014         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1015         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1016         types[2] = TNY_FOLDER_TYPE_SENT;
1017
1018         /* Check dimmed rule */
1019         if (!dimmed) {
1020                 dimmed = _clipboard_is_empty (win);
1021                 if (dimmed)
1022                         modest_dimming_rule_set_notification (rule,
1023                                                               dgettext("hildon-common-strings",
1024                                                                        "ecoc_ib_edwin_nothing_to_paste"));
1025         }
1026         if (!dimmed) {
1027                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1028                 if (dimmed)
1029                         modest_dimming_rule_set_notification (rule,
1030                                                               dgettext("hildon-common-strings",
1031                                                                        "ckct_ib_unable_to_paste_here"));
1032         }
1033         if (!dimmed) {
1034                 dimmed = !_folder_view_has_focus (win);
1035                 if (dimmed)
1036                         modest_dimming_rule_set_notification (rule,
1037                                         dgettext("hildon-common-strings",
1038                                         "ckct_ib_unable_to_paste_here"));
1039         }
1040         if (!dimmed) {
1041                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
1042                 if (dimmed) {
1043                         modest_dimming_rule_set_notification (rule,
1044                                                               dgettext("hildon-common-strings",
1045                                                                        "ckct_ib_unable_to_paste_here"));
1046                 }
1047         }
1048         if (!dimmed) {
1049                 dimmed = _selected_folder_is_same_as_source (win);
1050                 if (dimmed)
1051                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_copy_samefolder"));
1052         }
1053
1054         return dimmed;
1055 }
1056
1057
1058 gboolean
1059 modest_ui_dimming_rules_on_select_all (ModestWindow *win, gpointer user_data)
1060 {
1061         ModestDimmingRule *rule = NULL;
1062         gboolean dimmed = FALSE;
1063
1064         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1065         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1066         rule = MODEST_DIMMING_RULE (user_data);
1067
1068         /* Check dimmed rule */
1069         if (!dimmed)
1070                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1071
1072         if (!dimmed)
1073                 dimmed = _header_view_is_all_selected (MODEST_MAIN_WINDOW(win));
1074
1075         if (dimmed)
1076                 modest_dimming_rule_set_notification (rule, "");
1077
1078         return dimmed;
1079 }
1080
1081 gboolean
1082 modest_ui_dimming_rules_on_view_attachments (ModestWindow *win, gpointer user_data)
1083 {
1084         ModestDimmingRule *rule = NULL;
1085         gboolean dimmed = FALSE;
1086
1087         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1088         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1089         rule = MODEST_DIMMING_RULE (user_data);
1090
1091         /* Check dimmed rule */
1092         if (!dimmed)
1093                 dimmed = _invalid_attach_selected (win, TRUE, TRUE, FALSE, rule);
1094
1095         if (!dimmed) {
1096                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1097                 if (dimmed) {
1098                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1099                 }
1100         }
1101
1102         return dimmed;
1103 }
1104
1105 gboolean
1106 modest_ui_dimming_rules_on_save_attachments (ModestWindow *win, gpointer user_data)
1107 {
1108         ModestDimmingRule *rule = NULL;
1109         gboolean dimmed = FALSE;
1110
1111         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1112         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1113         rule = MODEST_DIMMING_RULE (user_data);
1114
1115         /* Check dimmed rule */
1116         if (!dimmed)
1117                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, FALSE, rule);
1118
1119         if (!dimmed) {
1120                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1121                 if (dimmed) {
1122                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1123                 }
1124         }
1125
1126         return dimmed;
1127 }
1128
1129 gboolean
1130 modest_ui_dimming_rules_on_remove_attachments (ModestWindow *win, gpointer user_data)
1131 {
1132         ModestDimmingRule *rule = NULL;
1133         const DimmedState *state = NULL;
1134         gboolean dimmed = FALSE;
1135
1136         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1137         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1138         rule = MODEST_DIMMING_RULE (user_data);
1139         state = modest_window_get_dimming_state (win);
1140
1141         /* Check in main window if there's only one message selected */
1142         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1143                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW (win), TRUE, rule);
1144         }
1145
1146         /* Check in view window if there's any attachment selected */
1147         if (!dimmed && MODEST_IS_MSG_VIEW_WINDOW (win)) {
1148                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, TRUE, NULL);
1149                 if (dimmed)
1150                         modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1151         }
1152
1153         /* cannot purge in editable drafts nor pop folders */
1154         if (!dimmed) {
1155                 dimmed = _invalid_folder_for_purge (win, rule);
1156         }
1157
1158         /* Check if the selected message in main window has attachments */
1159         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1160                 dimmed = state->any_has_attachments;
1161                 if (dimmed)
1162                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1163         }
1164
1165         /* Check if all attachments are already purged */
1166         if (!dimmed) {
1167                 dimmed = _purged_attach_selected (win, TRUE, rule);
1168         }
1169
1170         /* Check if the message is already downloaded */
1171         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1172                 dimmed = !_msg_download_completed (MODEST_MAIN_WINDOW (win));
1173                 if (dimmed)
1174                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1175         }
1176
1177
1178         return dimmed;
1179 }
1180
1181 gboolean
1182 modest_ui_dimming_rules_on_undo (ModestWindow *win, gpointer user_data)
1183 {
1184         ModestDimmingRule *rule = NULL;
1185         gboolean dimmed = FALSE;
1186
1187         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1188         rule = MODEST_DIMMING_RULE (user_data);
1189
1190         /* Check dimmed rule */
1191         if (!dimmed) {
1192                 dimmed = _clipboard_is_empty (win);
1193                 if (dimmed)
1194                         modest_dimming_rule_set_notification (rule, "");
1195         }
1196
1197         return dimmed;
1198 }
1199
1200 gboolean
1201 modest_ui_dimming_rules_on_cut (ModestWindow *win, gpointer user_data)
1202 {
1203         ModestDimmingRule *rule = NULL;
1204         gboolean dimmed = FALSE;
1205
1206         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1207         rule = MODEST_DIMMING_RULE (user_data);
1208
1209         /* Check common dimming rules */
1210         if (!dimmed) {
1211                 dimmed = _invalid_clipboard_selected (win, rule);
1212         }
1213
1214         /* Check window specific dimming rules */
1215         if (MODEST_IS_MAIN_WINDOW (win)) {
1216                 /* Get focused widget */
1217                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1218
1219                 if (MODEST_IS_HEADER_VIEW (focused)) {
1220                         if (!dimmed) {
1221                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1222                                 if (dimmed)
1223                                         modest_dimming_rule_set_notification (rule, "");
1224                         }
1225                         if (!dimmed) {
1226                                 dimmed = _selected_msg_sent_in_progress (win);
1227                                 if (dimmed)
1228                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1229                         }
1230                 }
1231                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1232                         TnyFolderType types[3];
1233
1234                         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1235                         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1236                         types[2] = TNY_FOLDER_TYPE_SENT;
1237
1238                         /* Apply folder rules */
1239                         if (!dimmed) {
1240                                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
1241                                 if (dimmed)
1242                                         modest_dimming_rule_set_notification (rule, _("emev_bd_unabletomove_items"));
1243                         }
1244                         if (!dimmed) {
1245                                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
1246                                 if (dimmed)
1247                                         modest_dimming_rule_set_notification (rule, _("emev_bd_unabletomove_itemsr"));
1248                         }
1249                         if (!dimmed) {
1250                                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1251                                 if (dimmed)
1252                                         modest_dimming_rule_set_notification (rule, _("emev_bd_unabletomove_itemsr"));
1253                         }
1254                 }
1255         }
1256
1257         return dimmed;
1258 }
1259
1260 gboolean
1261 modest_ui_dimming_rules_on_copy (ModestWindow *win, gpointer user_data)
1262 {
1263         ModestDimmingRule *rule = NULL;
1264         gboolean dimmed = FALSE;
1265
1266         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1267         rule = MODEST_DIMMING_RULE (user_data);
1268
1269         /* Check common dimming rules */
1270         if (!dimmed) {
1271                 dimmed = _invalid_clipboard_selected (win, rule);
1272         }
1273
1274         /* Check window specific dimming rules */
1275         if (MODEST_IS_MAIN_WINDOW (win)) {
1276                 /* Get focused widget */
1277                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1278
1279                 if (MODEST_IS_HEADER_VIEW (focused)) {
1280                         if (!dimmed) {
1281                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1282                                 if (dimmed)
1283                                         modest_dimming_rule_set_notification (rule, "");
1284                         }
1285                         if (!dimmed) {
1286                                 dimmed = _selected_msg_sent_in_progress (win);
1287                                 if (dimmed)
1288                                         modest_dimming_rule_set_notification (rule, _(""));
1289                         }
1290                 }
1291                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1292                         if (!dimmed) {
1293                                 dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
1294                                 if (dimmed)
1295                                         modest_dimming_rule_set_notification (rule, _(""));
1296                         }
1297                 }
1298         }
1299
1300         return dimmed;
1301 }
1302
1303 gboolean
1304 modest_ui_dimming_rules_on_view_previous (ModestWindow *win, gpointer user_data)
1305 {
1306         ModestDimmingRule *rule = NULL;
1307         gboolean dimmed = FALSE;
1308
1309         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1310         rule = MODEST_DIMMING_RULE (user_data);
1311
1312         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1313
1314         /* Check dimmed rule */
1315         if (!dimmed) {
1316                 dimmed = _transfer_mode_enabled (win);
1317                 if (dimmed)
1318                         modest_dimming_rule_set_notification (
1319                                         rule, _("mail_ib_notavailable_downloading"));
1320         }
1321         if (!dimmed) {
1322                 dimmed = modest_msg_view_window_first_message_selected (
1323                                 MODEST_MSG_VIEW_WINDOW(win));
1324                 modest_dimming_rule_set_notification (rule, NULL);
1325         }
1326
1327         return dimmed;
1328 }
1329
1330 gboolean
1331 modest_ui_dimming_rules_on_view_next (ModestWindow *win, gpointer user_data)
1332 {
1333         ModestDimmingRule *rule = NULL;
1334         gboolean dimmed = FALSE;
1335
1336         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1337         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1338         rule = MODEST_DIMMING_RULE (user_data);
1339
1340         /* Check dimmed rule */
1341         if (!dimmed) {
1342                 dimmed = _transfer_mode_enabled (win);
1343                 if (dimmed)
1344                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1345         }
1346         if (!dimmed) {
1347                 dimmed = modest_msg_view_window_last_message_selected (MODEST_MSG_VIEW_WINDOW (win));
1348                 modest_dimming_rule_set_notification (rule, NULL);
1349         }
1350
1351         return dimmed;
1352 }
1353
1354
1355 gboolean
1356 modest_ui_dimming_rules_on_tools_smtp_servers (ModestWindow *win, gpointer user_data)
1357 {
1358         const gboolean dimmed =
1359                 !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
1360                         TRUE);
1361
1362         return dimmed;
1363 }
1364
1365 gboolean
1366 modest_ui_dimming_rules_on_cancel_sending (ModestWindow *win, gpointer user_data)
1367 {
1368         ModestDimmingRule *rule = NULL;
1369         TnyFolderType types[1];
1370         guint n_messages = 0;
1371         const DimmedState *state = NULL;
1372         gboolean dimmed = FALSE;
1373
1374         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1375         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1376         rule = MODEST_DIMMING_RULE (user_data);
1377         state = modest_window_get_dimming_state (win);
1378
1379         types[0] = TNY_FOLDER_TYPE_OUTBOX;
1380
1381         /* Check dimmed rules */
1382         if (!dimmed) {
1383                 dimmed = state->already_opened_msg;
1384                 n_messages = state->n_selected;
1385                 if (dimmed)
1386                         modest_dimming_rule_set_notification (rule, _("mcen_ib_message_unableto_cancel_send"));
1387         }
1388         if (!dimmed) {
1389                 dimmed = !_selected_folder_is_any_of_type (win, types, 1);
1390                 if (dimmed)
1391                         modest_dimming_rule_set_notification (rule, "");
1392         }
1393         if (!dimmed) {
1394                 dimmed = !_sending_in_progress (win);
1395                 if (dimmed)
1396                         modest_dimming_rule_set_notification (rule, "");
1397         }
1398
1399         return dimmed;
1400 }
1401
1402 gboolean
1403 modest_ui_dimming_rules_on_send_receive (ModestWindow *win, gpointer user_data)
1404 {
1405         ModestDimmingRule *rule = NULL;
1406         gboolean dimmed = FALSE;
1407
1408         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1409         rule = MODEST_DIMMING_RULE (user_data);
1410
1411         /* Check dimmed rule */
1412         if (!dimmed) {
1413                 dimmed = !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
1414                                                           TRUE);
1415                 if (dimmed)
1416                         modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
1417         }
1418
1419         return dimmed;
1420 }
1421
1422 gboolean
1423 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
1424 {
1425         ModestDimmingRule *rule = NULL;
1426         gboolean dimmed = FALSE;
1427
1428         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1429         rule = MODEST_DIMMING_RULE (user_data);
1430
1431         /* Check dimmed rule */
1432         if (!dimmed) {
1433                 GtkClipboard *clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
1434                 gchar *selection = NULL;
1435                 selection = gtk_clipboard_wait_for_text (clipboard);
1436
1437                 dimmed = !((selection != NULL) && (modest_text_utils_validate_recipient (selection, NULL)));
1438         }
1439
1440         return dimmed;
1441 }
1442
1443 /* *********************** static utility functions ******************** */
1444
1445
1446 static gboolean
1447 _selected_folder_not_writeable (ModestMainWindow *win)
1448 {
1449         GtkWidget *folder_view = NULL;
1450         TnyFolderStore *parent_folder = NULL;
1451         ModestTnyFolderRules rules;
1452         gboolean result = FALSE;
1453
1454         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1455
1456         /* Get folder view */
1457         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1458                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1459         /* If no folder view, always dimmed */
1460         if (!folder_view)
1461                 return TRUE;
1462
1463         /* Get selected folder as parent of new folder to create */
1464         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1465         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1466                 if (parent_folder)
1467                         g_object_unref (parent_folder);
1468                 return TRUE;
1469         }
1470
1471         /* Check dimmed rule */
1472         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1473         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
1474
1475         /* free */
1476         g_object_unref (parent_folder);
1477
1478         return result;
1479 }
1480
1481 static gboolean
1482 _selected_folder_is_root_or_inbox (ModestMainWindow *win)
1483 {
1484         TnyFolderType types[2];
1485         gboolean result = FALSE;
1486
1487         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1488
1489         types[0] = TNY_FOLDER_TYPE_ROOT;
1490         types[1] = TNY_FOLDER_TYPE_INBOX;
1491
1492         /* Check folder type */
1493         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 2);
1494
1495         /* Check pop and MMC accounts */
1496         if (!result) {
1497                 result = _selected_folder_is_MMC_or_POP_root (win);
1498         }
1499
1500         return result;
1501 }
1502
1503
1504 static gboolean
1505 _selected_folder_is_root (ModestMainWindow *win)
1506 {
1507         TnyFolderType types[1];
1508         gboolean result = FALSE;
1509
1510         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1511
1512         /* All accounts are root items: */
1513         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1514                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1515         if (folder_view) {
1516                 gboolean is_account = FALSE;
1517                 TnyFolderStore *folder_store =
1518                         modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1519                 if (folder_store) {
1520                         is_account = TNY_IS_ACCOUNT (folder_store);
1521                         g_object_unref (folder_store);
1522                         folder_store = NULL;
1523                 }
1524
1525                 if (is_account)
1526                         return TRUE;
1527         }
1528
1529         /* Try something more precise: */
1530         types[0] = TNY_FOLDER_TYPE_ROOT;
1531
1532         /* Check folder type */
1533         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 1);
1534
1535         /* Check pop and MMC accounts */
1536         if (!result) {
1537                 result = _selected_folder_is_MMC_or_POP_root (win);
1538         }
1539
1540         return result;
1541 }
1542
1543 static gboolean
1544 _selected_folder_is_MMC_or_POP_root (ModestMainWindow *win)
1545 {
1546         GtkWidget *folder_view = NULL;
1547         TnyFolderStore *parent_folder = NULL;
1548         gboolean result = FALSE;
1549
1550         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1551                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1552         if (!folder_view)
1553                 return FALSE;
1554
1555         /* Get selected folder as parent of new folder to create */
1556         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1557         if (!parent_folder)
1558                 return TRUE;
1559
1560         if (TNY_IS_ACCOUNT (parent_folder)) {
1561                 /* If it's the local account then do not dim */
1562                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
1563                         result = FALSE;
1564                 } else {
1565                                 /* If it's the MMC root folder then dim it */
1566                         if (!strcmp (tny_account_get_id (TNY_ACCOUNT (parent_folder)), MODEST_MMC_ACCOUNT_ID)) {
1567                                         result = TRUE;
1568                         } else {
1569                                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
1570                                 /* If it's POP then dim */
1571                                 result = (modest_protocol_info_get_transport_store_protocol (proto_str) ==
1572                                                   MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
1573                         }
1574                 }
1575         }
1576         g_object_unref (parent_folder);
1577
1578         return result;
1579 }
1580
1581 static gboolean
1582 _header_view_is_all_selected (ModestMainWindow *win)
1583 {
1584         const DimmedState *state = NULL;
1585
1586         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1587
1588         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
1589
1590         return state->all_selected;
1591 }
1592
1593 static gboolean
1594 _selected_folder_is_empty (ModestMainWindow *win)
1595 {
1596         GtkWidget *folder_view = NULL;
1597         TnyFolderStore *folder = NULL;
1598         gboolean result = FALSE;
1599
1600         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1601
1602         /* Get folder view */
1603         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1604                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1605         /* If no folder view, always dimmed */
1606         if (!folder_view)
1607                 return TRUE;
1608
1609         /* Get selected folder as parent of new folder to create */
1610         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1611         if (!(folder && TNY_IS_FOLDER(folder))) {
1612                 if (folder)
1613                         g_object_unref (folder);
1614                 return TRUE;
1615         }
1616
1617         /* Check folder type */
1618         result = tny_folder_get_all_count (TNY_FOLDER (folder)) == 0;
1619
1620         /* free */
1621         g_object_unref (folder);
1622
1623         return result;
1624 }
1625
1626 static gboolean
1627 _folder_view_has_focus (ModestWindow *win)
1628 {
1629         GtkWidget *folder_view = NULL;
1630
1631         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1632
1633         /* Get folder view */
1634         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1635                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1636         if (!folder_view)
1637                 return FALSE;
1638
1639         if (gtk_widget_is_focus(folder_view))
1640                 return TRUE;
1641
1642         return FALSE;
1643 }
1644
1645 static gboolean
1646 _selected_folder_is_same_as_source (ModestWindow *win)
1647 {
1648         ModestEmailClipboard *clipboard = NULL;
1649         GtkWidget *folder_view = NULL;
1650         TnyFolderStore *folder = NULL;
1651         gboolean result = FALSE;
1652
1653         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1654
1655         /* Get folder view */
1656         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1657                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1658         if (!folder_view)
1659                 return FALSE;
1660
1661         /* Get selected folder as destination folder */
1662         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1663         if (!(folder && TNY_IS_FOLDER(folder))) {
1664                 result = FALSE;
1665                 goto frees;
1666         }
1667
1668         /* Check clipboard is cleared */
1669         clipboard = modest_runtime_get_email_clipboard ();
1670         if (modest_email_clipboard_cleared (clipboard)) {
1671                 result = FALSE;
1672                 goto frees;
1673         }
1674
1675         /* Check source folder */
1676         result = modest_email_clipboard_check_source_folder (clipboard,
1677                                                              (const TnyFolder *) folder);
1678
1679         /* Free */
1680  frees:
1681         g_object_unref (folder);
1682
1683         return result;
1684 }
1685
1686 static gboolean
1687 _selected_folder_is_any_of_type (ModestWindow *win,
1688                                  TnyFolderType types[],
1689                                  guint ntypes)
1690 {
1691         GtkWidget *folder_view = NULL;
1692         TnyFolderStore *folder = NULL;
1693         TnyFolderType folder_type;
1694         guint i=0;
1695         gboolean result = FALSE;
1696
1697         /*Get current folder */
1698         if (MODEST_IS_MAIN_WINDOW(win)) {
1699
1700                 /* Get folder view */
1701                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1702                                                                    MODEST_WIDGET_TYPE_FOLDER_VIEW);
1703                 /* If no folder view, always dimmed */
1704                 if (!folder_view)
1705                         return FALSE;
1706
1707                 /* Get selected folder as parent of new folder to create */
1708                 folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1709
1710                 if (!(folder && TNY_IS_FOLDER(folder))) {
1711                         if (folder)
1712                                 g_object_unref (folder);
1713                         return FALSE;
1714                 }
1715
1716                 /* Check folder type */
1717                 result = _folder_is_any_of_type (TNY_FOLDER(folder), types, ntypes);
1718         }
1719         else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
1720                 folder_type = modest_msg_view_window_get_folder_type (MODEST_MSG_VIEW_WINDOW (win));
1721                 for (i=0; i < ntypes; i++) {
1722                         result = result || folder_type == types[i];
1723                 }
1724         }
1725
1726
1727         /* free */
1728         g_object_unref (folder);
1729
1730         return result;
1731 }
1732
1733 static gboolean
1734 _folder_is_any_of_type (TnyFolder *folder,
1735                         TnyFolderType types[],
1736                         guint ntypes)
1737 {
1738         TnyFolderType folder_type;
1739         gboolean result = FALSE;
1740         guint i;
1741
1742         g_return_val_if_fail (TNY_IS_FOLDER(folder), FALSE);
1743
1744         /* Get folder type */
1745         folder_type = modest_tny_folder_guess_folder_type (folder);
1746
1747         /* Check foler type */
1748         for (i=0; i < ntypes; i++) {
1749                 result = result || folder_type == types[i];
1750         }
1751
1752         return result;
1753 }
1754
1755 static gboolean
1756 _clipboard_is_empty (ModestWindow *win)
1757 {
1758         gboolean result = FALSE;
1759
1760         if (MODEST_IS_MAIN_WINDOW (win)) {
1761                 ModestEmailClipboard *clipboard = NULL;
1762                 clipboard = modest_runtime_get_email_clipboard ();
1763                 if (modest_email_clipboard_cleared (clipboard))
1764                  result = TRUE;
1765         }
1766
1767         return result;
1768 }
1769
1770 static gboolean
1771 _invalid_clipboard_selected (ModestWindow *win,
1772                              ModestDimmingRule *rule)
1773 {
1774         const DimmedState *state = NULL;
1775         gboolean result = FALSE;
1776
1777         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1778         state = modest_window_get_dimming_state (win);
1779
1780         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1781                 GtkClipboard *clipboard = NULL;
1782                 gchar *selection = NULL;
1783                 GtkWidget *focused = NULL;
1784
1785                 /* Get clipboard selection*/
1786                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
1787                 selection = gtk_clipboard_wait_for_text (clipboard);
1788
1789                 /* Get focuesed widget */
1790                 focused = gtk_window_get_focus (GTK_WINDOW (win));
1791
1792                 /* Check dimming */
1793                 result = ((selection == NULL) ||
1794                           (MODEST_IS_ATTACHMENTS_VIEW (focused)));
1795
1796                 if (result)
1797                         modest_dimming_rule_set_notification (rule, "");
1798
1799                 if (selection != NULL)
1800                         g_free(selection);
1801         }
1802         else if (MODEST_IS_MAIN_WINDOW (win)) {
1803                 /* Check dimming */
1804                 result = state->n_selected == 0;
1805                 if (result)
1806                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
1807         }
1808
1809         return result;
1810 }
1811
1812
1813 static gboolean
1814 _invalid_attach_selected (ModestWindow *win,
1815                           gboolean unique,
1816                           gboolean for_view,
1817                           gboolean for_remove,
1818                           ModestDimmingRule *rule)
1819 {
1820         GList *attachments, *node;
1821         gint n_selected;
1822         TnyHeaderFlags flags;
1823         gboolean nested_attachments = FALSE;
1824         gboolean selected_messages = FALSE;
1825         const DimmedState *state = NULL;
1826         gboolean result = FALSE;
1827
1828         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1829         state = modest_window_get_dimming_state (win);
1830
1831         if (MODEST_IS_MAIN_WINDOW (win)) {
1832                 flags = TNY_HEADER_FLAG_ATTACHMENTS;
1833                 if (!result)
1834                         result = !state->any_has_attachments;
1835         }
1836         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1837
1838                 /* Get selected atachments */
1839                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1840                 n_selected = g_list_length (attachments);
1841
1842                 /* Check unique */
1843                 if (!result) {
1844                         if (unique)
1845                                 result = n_selected != 1;
1846                         else
1847
1848                                 result = n_selected < 1;
1849                 }
1850
1851                 /* Check attached type (view operation not required) */
1852                 if (!result && !for_view)  {
1853                         for (node = attachments; node != NULL && !result; node = g_list_next (node)) {
1854                                 TnyMimePart *mime_part = TNY_MIME_PART (node->data);
1855                                 TnyList *nested_list = tny_simple_list_new ();
1856                                 if (!for_remove && TNY_IS_MSG (mime_part)) {
1857                                         selected_messages = TRUE;
1858                                         result = TRUE;
1859                                 }
1860                                 tny_mime_part_get_parts (mime_part, nested_list);
1861                                 if (!for_remove && tny_list_get_length (nested_list) > 0) {
1862                                         nested_attachments = TRUE;
1863                                         result = TRUE;
1864                                 }
1865                                 g_object_unref (nested_list);
1866                         }
1867                 }
1868
1869                 /* Set notifications */
1870                 if (result && rule != NULL) {
1871                         if (selected_messages) {
1872                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_save_attach_mail"));
1873                         } else if (nested_attachments) {
1874                                 modest_dimming_rule_set_notification (rule, _("FIXME:unable to save attachments with nested elements"));
1875                         } else if (n_selected == 0) {
1876                                 modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1877                         } else if (unique) {
1878                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_display_more"));
1879                         }
1880                 }
1881
1882                 /* Free */
1883                 g_list_free (attachments);
1884         }
1885
1886         return result;
1887 }
1888
1889 static gboolean
1890 _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule)
1891 {
1892         GList *attachments = NULL, *node;
1893         gint purged = 0;
1894         gint n_attachments = 0;
1895         gboolean result = FALSE;
1896
1897         /* This should check if _all_ the attachments are already purged. If only some
1898          * of them are purged, then it does not cause dim as there's a confirmation dialog
1899          * for removing only local attachments */
1900
1901         /* Get selected atachments */
1902         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1903                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1904         } else if (MODEST_IS_MAIN_WINDOW (win)) {
1905                 /* If we're in main window, we won't know if there are already purged attachments */
1906                 return FALSE;
1907         }
1908
1909         if (attachments == NULL)
1910                 return FALSE;
1911
1912         for (node = attachments; node != NULL; node = g_list_next (node)) {
1913                 TnyMimePart *mime_part = TNY_MIME_PART (node->data);
1914                 if (tny_mime_part_is_purged (mime_part)) {
1915                         purged++;
1916                 }
1917                 n_attachments++;
1918         }
1919
1920         /* Free */
1921         g_list_free (attachments);
1922
1923         if (all)
1924                 result = (purged == n_attachments);
1925         else
1926                 result = (purged > 0);
1927
1928         if (result && (rule != NULL))
1929                 modest_dimming_rule_set_notification (rule, _("mail_ib_attachment_already_purged"));
1930
1931         return result;
1932 }
1933
1934 static gboolean
1935 _invalid_msg_selected (ModestMainWindow *win,
1936                        gboolean unique,
1937                        ModestDimmingRule *rule)
1938 {
1939         GtkWidget *folder_view = NULL;
1940         const DimmedState *state = NULL;
1941         gboolean result = FALSE;
1942
1943         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1944         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (rule), FALSE);
1945         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
1946
1947         /* Get folder view to check focus */
1948         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
1949                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1950
1951         /* Check dimmed rule (TODO: check focus on widgets */
1952         if (!result) {
1953                 result = ((state->n_selected == 0 ) ||
1954                           (gtk_widget_is_focus (folder_view)));
1955                 if (result)
1956                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
1957         }
1958         if (!result && unique) {
1959                 result = state->n_selected > 1;
1960                 if (result)
1961                         modest_dimming_rule_set_notification (rule, _("mcen_ib_select_one_message"));
1962         }
1963
1964         return result;
1965 }
1966
1967
1968 static gboolean
1969 _msg_download_in_progress (ModestMsgViewWindow *win)
1970 {
1971         gboolean result = FALSE;
1972
1973         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW (win), FALSE);
1974
1975         result = modest_msg_view_window_toolbar_on_transfer_mode (win);
1976
1977         return result;
1978 }
1979
1980 static gboolean
1981 _msg_download_completed (ModestMainWindow *win)
1982 {
1983         const DimmedState *state = modest_window_get_dimming_state (MODEST_WINDOW(win));
1984         return state->any_marked_as_cached;
1985 }
1986
1987 static void
1988 fill_list_of_caches (gpointer key, gpointer value, gpointer userdata)
1989 {
1990         GSList **send_queues = (GSList **) userdata;
1991         *send_queues = g_slist_prepend (*send_queues, value);
1992 }
1993
1994 static gboolean
1995 _selected_msg_sent_in_progress (ModestWindow *win)
1996 {
1997         const DimmedState *state = modest_window_get_dimming_state (win);
1998         return state->sent_in_progress;
1999 }
2000
2001
2002 static gboolean
2003 _sending_in_progress (ModestWindow *win)
2004 {
2005         gboolean result = FALSE;
2006
2007         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW (win), FALSE);
2008
2009         /* Check if send operation is in progress */
2010         result = modest_main_window_send_receive_in_progress (MODEST_MAIN_WINDOW (win));
2011
2012         return result;
2013 }
2014
2015 static gboolean
2016 _invalid_folder_for_purge (ModestWindow *win,
2017                            ModestDimmingRule *rule)
2018 {
2019         TnyMsg *msg = NULL;
2020         TnyFolder *folder = NULL;
2021         TnyAccount *account = NULL;
2022         gboolean result = FALSE;
2023
2024         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2025
2026                 /* Get folder and account of message */
2027                 msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2028                 g_return_val_if_fail(msg != NULL, TRUE);
2029                 folder = tny_msg_get_folder (msg);
2030                 if (folder == NULL) {
2031                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
2032                         goto frees;
2033                 }
2034                 g_object_unref (msg);
2035         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2036                 GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2037                                                                               MODEST_WIDGET_TYPE_FOLDER_VIEW);
2038                 if (!folder_view)
2039                         return FALSE;
2040                 folder = TNY_FOLDER (modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view)));
2041                 if (folder == NULL || ! TNY_IS_FOLDER (folder))
2042                         goto frees;
2043         } else {
2044                 g_return_val_if_reached (FALSE);
2045         }
2046         account = modest_tny_folder_get_account (folder);
2047         if (account == NULL) goto frees;
2048
2049         /* Check account */
2050         if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (account))) {
2051                 TnyFolderType types[2];
2052                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
2053                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
2054
2055                 if (_selected_folder_is_any_of_type (win, types, 2)) {
2056                         result = TRUE;
2057                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_editable_msg"));
2058                 } else {
2059                         /* We're currently disabling purge in any local store */
2060                         result = TRUE;
2061                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
2062                 }
2063         } else {
2064                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (account));
2065                 /* If it's POP then dim */
2066                 if (modest_protocol_info_get_transport_store_protocol (proto_str) ==
2067                     MODEST_PROTOCOL_STORE_POP) {
2068                         GList *attachments = NULL;
2069                         gint n_selected = 0;
2070                         result = TRUE;
2071
2072                         /* TODO: This check is here to prevent a gwarning, but this looks like a logic error.
2073                          * murrayc */
2074                         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2075                                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2076                                 n_selected = g_list_length (attachments);
2077                                 g_list_free (attachments);
2078                         }
2079
2080                         modest_dimming_rule_set_notification (rule,
2081                                                               ngettext ("mail_ib_unable_to_pure_attach_pop_mail_singular",
2082                                                                         "mail_ib_unable_to_pure_attach_pop_mail_plural",
2083                                                                         n_selected));
2084                 }
2085         }
2086
2087 frees:
2088         if (folder != NULL)
2089                 g_object_unref (folder);
2090         if (account != NULL)
2091                 g_object_unref (account);
2092
2093         return result;
2094 }
2095
2096 static gboolean
2097 _transfer_mode_enabled (ModestWindow *win)
2098 {
2099         gboolean result = FALSE;
2100
2101         /* Check dimming */
2102         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2103                 result = modest_msg_view_window_transfer_mode_enabled (MODEST_MSG_VIEW_WINDOW (win));
2104         } else if (MODEST_IS_MAIN_WINDOW(win)) {
2105                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW (win));
2106         } else {
2107                 g_warning("_transfer_mode_enabled called with wrong window type");
2108         }
2109
2110         return result;
2111 }
2112