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_snd_level (ModestMainWindow *win);
  57 static gboolean _selected_folder_is_any_of_type (ModestWindow *win, TnyFolderType types[], guint ntypes);
  58 static gboolean _selected_folder_is_root_or_inbox (ModestMainWindow *win);
  59 static gboolean _selected_folder_is_MMC_or_POP_root (ModestMainWindow *win);
  60 static gboolean _selected_folder_is_root (ModestMainWindow *win);
  61 static gboolean _header_view_is_all_selected (ModestMainWindow *win);
  62 static gboolean _selected_folder_is_empty (ModestMainWindow *win);
  63 static gboolean _folder_view_has_focus (ModestWindow *win);
  64 static gboolean _selected_folder_is_same_as_source (ModestWindow *win);
  65 static gboolean _msg_download_in_progress (ModestMsgViewWindow *win);
  66 static gboolean _msg_download_completed (ModestMainWindow *win);
  67 static gboolean _selected_msg_sent_in_progress (ModestWindow *win);
  68 static gboolean _sending_in_progress (ModestWindow *win);
  69 /* static gboolean _message_is_marked_as_deleted (ModestMsgViewWindow *win); */
  70 /* static gboolean _selected_message_is_marked_as_deleted (ModestMainWindow *win); */
  71 static gboolean _invalid_folder_for_purge (ModestWindow *win, ModestDimmingRule *rule);
  72 static gboolean _transfer_mode_enabled (ModestWindow *win);
  73
  74 static void  fill_list_of_caches (gpointer key, gpointer value, gpointer userdata);
  75
  76
  77 static DimmedState *
  78 _define_main_window_dimming_state (ModestMainWindow *window)
  79 {
  80         DimmedState *state = NULL;
  81         GtkWidget *focused_widget = NULL;
  82         GtkWidget *header_view = NULL;
  83         GtkTreeModel *model = NULL;
  84         TnyList *selected_headers = NULL;
  85         TnyIterator *iter = NULL;
  86         TnyHeader *header = NULL;
  87         ModestCacheMgr *cache_mgr = NULL;
  88         GHashTable *send_queue_cache = NULL;
  89         ModestTnySendQueue *send_queue = NULL;
  90         GSList *send_queues = NULL, *node = NULL;
  91         ModestWindowMgr *mgr = NULL;
  92         gboolean found = FALSE;
  93         gchar *msg_uid = NULL;
  94         TnyHeaderFlags flags;
  95         gboolean all_deleted = TRUE;
  96         gboolean all_seen = TRUE;
  97         gboolean all_cached = TRUE;
  98         gboolean all_has_attach = TRUE;
  99
 100         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(window), NULL);
 101
 102         /* Init state */
 103         state = g_slice_new0 (DimmedState);
 104         state->n_selected = 0;
 105         state->already_opened_msg = FALSE;
 106         state->any_marked_as_deleted = FALSE;
 107         state->all_marked_as_deleted = FALSE;
 108         state->any_marked_as_seen = FALSE;
 109         state->all_marked_as_seen = FALSE;
 110         state->any_marked_as_cached = FALSE;
 111         state->all_marked_as_cached = FALSE;
 112         state->any_has_attachments = FALSE;
 113         state->all_has_attachments = FALSE;
 114         state->sent_in_progress = FALSE;
 115         state->all_selected = FALSE;
 116
 117         /* Get focused widget */
 118         focused_widget = gtk_window_get_focus (GTK_WINDOW (window));
 119         if (MODEST_IS_FOLDER_VIEW (focused_widget)) {
 120                 state->n_selected++;
 121                 return state;
 122         } else if (MODEST_IS_HEADER_VIEW (focused_widget)) {
 123                 header_view = focused_widget;
 124         } else {
 125                 header_view = modest_main_window_get_child_widget (window, MODEST_WIDGET_TYPE_HEADER_VIEW);
 126         }
 127
 128         /* Get header view and selected headers */
 129         selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
 130         if (!selected_headers)
 131                 return state;
 132
 133         /* Examine selected headers */
 134         iter = tny_list_create_iterator (selected_headers);
 135         while (!tny_iterator_is_done (iter)) {
 136                 header = TNY_HEADER (tny_iterator_get_current (iter));
 137                 flags = tny_header_get_flags (header);
 138
 139                 /* No selected */
 140                 state->n_selected++;
 141
 142                 /* Already opened */
 143                 mgr = modest_runtime_get_window_mgr ();
 144                 if (!state->already_opened_msg)
 145                         state->already_opened_msg = modest_window_mgr_find_registered_header (mgr, header, NULL);
 146
 147
 148                 /* Mark as deleted */
 149                 all_deleted = all_deleted && (flags & TNY_HEADER_FLAG_DELETED);
 150                 state->all_marked_as_deleted = all_deleted;
 151                 if (!state->any_marked_as_deleted)
 152                         state->any_marked_as_deleted = flags & TNY_HEADER_FLAG_DELETED;
 153
 154                 /* Mark as seen */
 155                 all_seen = all_seen && (flags & TNY_HEADER_FLAG_SEEN);
 156                 state->all_marked_as_seen = all_seen;
 157                 if (!state->any_marked_as_seen)
 158                         state->any_marked_as_seen = flags & TNY_HEADER_FLAG_SEEN;
 159
 160                 /* Mark as cached */
 161                 all_cached = all_cached && (flags & TNY_HEADER_FLAG_CACHED);
 162                 state->all_marked_as_cached = all_cached;
 163                 if (!state->any_marked_as_cached)
 164                         state->any_marked_as_cached = flags & TNY_HEADER_FLAG_CACHED;
 165
 166                 /* Mark has_attachments */
 167                 all_has_attach = all_has_attach && (flags & TNY_HEADER_FLAG_ATTACHMENTS);
 168                 state->all_has_attachments = all_has_attach;
 169                 if (!state->any_has_attachments)
 170                         state->any_has_attachments = flags & TNY_HEADER_FLAG_ATTACHMENTS;
 171
 172                 /* sent in progress */
 173                 msg_uid = modest_tny_send_queue_get_msg_id (header);
 174                 if (!state->sent_in_progress) {
 175                         cache_mgr = modest_runtime_get_cache_mgr ();
 176                         send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
 177                                                                        MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
 178
 179                         g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
 180
 181                         for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
 182                                 send_queue = MODEST_TNY_SEND_QUEUE (node->data);
 183
 184                                 /* Check if msg uid is being processed inside send queue */
 185                                 found = modest_tny_send_queue_msg_is_being_sent (send_queue, msg_uid);
 186                         }
 187                         state->sent_in_progress = found;
 188                 }
 189
 190                 tny_iterator_next (iter);
 191                 g_object_unref (header);
 192         }
 193
 194         /* check if all the headers are selected or not */
 195         model = gtk_tree_view_get_model(GTK_TREE_VIEW(header_view));
 196         if (model != NULL){
 197                 gint count;
 198                 count = gtk_tree_model_iter_n_children(model, NULL);
 199                 if(state->n_selected == count != 0)
 200                         state->all_selected = TRUE;
 201         }
 202
 203         /* Free */
 204         g_free(msg_uid);
 205         g_object_unref(selected_headers);
 206         g_object_unref(iter);
 207         g_slist_free (send_queues);
 208
 209         return state;
 210 }
 211
 212 static DimmedState *
 213 _define_msg_view_window_dimming_state (ModestMsgViewWindow *window)
 214 {
 215         DimmedState *state = NULL;
 216         TnyHeader *header = NULL;
 217         ModestCacheMgr *cache_mgr = NULL;
 218         GHashTable *send_queue_cache = NULL;
 219         ModestTnySendQueue *send_queue = NULL;
 220         GSList *send_queues = NULL, *node = NULL;
 221         gboolean found = FALSE;
 222         gchar *msg_uid = NULL;
 223         TnyHeaderFlags flags;
 224         gboolean all_deleted = TRUE;
 225         gboolean all_seen = TRUE;
 226         gboolean all_cached = TRUE;
 227         gboolean all_has_attach = TRUE;
 228
 229         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(window), NULL);
 230
 231         /* Init state */
 232         state = g_slice_new0 (DimmedState);
 233         state->n_selected = 0;
 234         state->already_opened_msg = FALSE;
 235         state->any_marked_as_deleted = FALSE;
 236         state->all_marked_as_deleted = FALSE;
 237         state->any_marked_as_seen = FALSE;
 238         state->all_marked_as_seen = FALSE;
 239         state->any_marked_as_cached = FALSE;
 240         state->all_marked_as_cached = FALSE;
 241         state->any_has_attachments = FALSE;
 242         state->all_has_attachments = FALSE;
 243         state->sent_in_progress = FALSE;
 244
 245         header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW(window));
 246         g_return_val_if_fail (TNY_IS_HEADER(header), state);
 247         flags = tny_header_get_flags (header);
 248
 249         /* Selected */
 250         state->n_selected++;
 251
 252         /* Mark as deleted */
 253         all_deleted = all_deleted && (flags & TNY_HEADER_FLAG_DELETED);
 254         state->all_marked_as_deleted = all_deleted;
 255         if (!state->any_marked_as_deleted)
 256                 state->any_marked_as_deleted = flags & TNY_HEADER_FLAG_DELETED;
 257
 258         /* Mark as seen */
 259         all_seen = all_seen && (flags & TNY_HEADER_FLAG_SEEN);
 260         state->all_marked_as_seen = all_seen;
 261         if (!state->any_marked_as_seen)
 262                 state->any_marked_as_seen = flags & TNY_HEADER_FLAG_SEEN;
 263
 264         /* Mark as cached */
 265         all_cached = all_cached && (flags & TNY_HEADER_FLAG_CACHED);
 266         state->all_marked_as_cached = all_cached;
 267         if (!state->any_marked_as_cached)
 268                 state->any_marked_as_cached = flags & TNY_HEADER_FLAG_CACHED;
 269
 270         /* Mark has_attachments */
 271         all_has_attach = all_has_attach && (flags & TNY_HEADER_FLAG_ATTACHMENTS);
 272         state->all_has_attachments = all_has_attach;
 273         if (!state->any_has_attachments)
 274                 state->any_has_attachments = flags & TNY_HEADER_FLAG_ATTACHMENTS;
 275
 276         /* sent in progress */
 277         msg_uid = modest_tny_send_queue_get_msg_id (header);
 278         if (!state->sent_in_progress) {
 279                 cache_mgr = modest_runtime_get_cache_mgr ();
 280                 send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
 281                                                                MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
 282
 283                 g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
 284
 285                 for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
 286                         send_queue = MODEST_TNY_SEND_QUEUE (node->data);
 287
 288                         /* Check if msg uid is being processed inside send queue */
 289                         found = modest_tny_send_queue_msg_is_being_sent (send_queue, msg_uid);
 290                 }
 291                 state->sent_in_progress = found;
 292         }
 293
 294         /* Free */
 295         g_free(msg_uid);
 296         g_object_unref (header);
 297         g_slist_free (send_queues);
 298
 299         return state;
 300 }
 301
 302
 303 DimmedState *
 304 modest_ui_dimming_rules_define_dimming_state (ModestWindow *window)
 305 {
 306         DimmedState *state = NULL;
 307
 308         g_return_val_if_fail (MODEST_IS_WINDOW(window), NULL);
 309
 310         if (MODEST_IS_MAIN_WINDOW (window))
 311                 state = _define_main_window_dimming_state (MODEST_MAIN_WINDOW(window));
 312         else if (MODEST_IS_MSG_VIEW_WINDOW (window)) {
 313                 state = _define_msg_view_window_dimming_state (MODEST_MSG_VIEW_WINDOW(window));
 314         }
 315
 316         return state;
 317 }
 318
 319
 320 gboolean
 321 modest_ui_dimming_rules_on_new_msg (ModestWindow *win, gpointer user_data)
 322 {
 323         ModestDimmingRule *rule = NULL;
 324         gboolean dimmed = FALSE;
 325
 326         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 327         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 328         rule = MODEST_DIMMING_RULE (user_data);
 329
 330         /* Check dimmed rule */
 331         if (!dimmed) {
 332                 dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW(win));
 333                 if (dimmed)
 334                         modest_dimming_rule_set_notification (rule, "");
 335         }
 336
 337         return dimmed;
 338 }
 339
 340 gboolean
 341 modest_ui_dimming_rules_on_csm_new_folder (ModestWindow *win, gpointer user_data)
 342 {
 343         ModestDimmingRule *rule = NULL;
 344         gboolean dimmed = FALSE;
 345
 346         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 347         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 348         rule = MODEST_DIMMING_RULE (user_data);
 349
 350         /* Check common new folder menu item dimming rules */
 351         dimmed = modest_ui_dimming_rules_on_new_folder (win, user_data);
 352
 353         /* Check CSM specific dimming rules */
 354         if (!dimmed) {
 355                 dimmed = _selected_folder_is_snd_level (MODEST_MAIN_WINDOW(win));
 356                 if (dimmed)
 357                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 358         }
 359
 360         return dimmed;
 361 }
 362
 363 gboolean
 364 modest_ui_dimming_rules_on_new_folder (ModestWindow *win, gpointer user_data)
 365 {
 366         ModestDimmingRule *rule = NULL;
 367         GtkWidget *folder_view = NULL;
 368         TnyFolderStore *parent_folder = NULL;
 369         gboolean dimmed = FALSE;
 370
 371         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 372         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 373         rule = MODEST_DIMMING_RULE (user_data);
 374
 375         /* Get selected folder as parent of new folder to create */
 376         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 377                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
 378         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
 379         if (!parent_folder)
 380                 return TRUE;
 381
 382         if (TNY_IS_ACCOUNT (parent_folder)) {
 383                 /* If it's the local account then do not dim */
 384                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
 385                         dimmed = FALSE;
 386                 } else {
 387                         const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
 388                         /* If it's POP then dim */
 389                         dimmed = (modest_protocol_info_get_transport_store_protocol (proto_str) ==
 390                                   MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
 391                         if (dimmed)
 392                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 393                 }
 394         } else {
 395                 /* TODO: the specs say that only one level of subfolder is allowed, is this true ? */
 396
 397                 TnyFolderType types[3];
 398
 399                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 400                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 401                 types[2] = TNY_FOLDER_TYPE_SENT;
 402
 403                 /* Apply folder rules */
 404                 if (!dimmed) {
 405                         dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 406                         if (dimmed)
 407                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 408                 }
 409                 if (!dimmed) {
 410                         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 411                         if (dimmed)
 412                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 413                 }
 414         }
 415         g_object_unref (parent_folder);
 416
 417         return dimmed;
 418 }
 419
 420 gboolean
 421 modest_ui_dimming_rules_on_delete (ModestWindow *win, gpointer user_data)
 422 {
 423         ModestDimmingRule *rule = NULL;
 424         GtkWidget *folder_view = NULL;
 425         GtkWidget *header_view = NULL;
 426         gboolean dimmed = FALSE;
 427
 428         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 429         rule = MODEST_DIMMING_RULE (user_data);
 430
 431         if (MODEST_IS_MAIN_WINDOW (win)) {
 432                 /* Get the folder view */
 433                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 434                                                                    MODEST_WIDGET_TYPE_FOLDER_VIEW);
 435
 436                 /* Get header view */
 437                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 438                                                            MODEST_WIDGET_TYPE_HEADER_VIEW);
 439
 440                 if (header_view && gtk_widget_is_focus (header_view))
 441                         dimmed = modest_ui_dimming_rules_on_delete_msg (win, rule);
 442
 443                 if (folder_view && gtk_widget_is_focus (folder_view))
 444                         dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 445
 446                 if (header_view && folder_view &&
 447                     !gtk_widget_is_focus (header_view) &&
 448                     !gtk_widget_is_focus (folder_view)) {
 449                         dimmed = TRUE;
 450                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ckct_ib_nothing_to_delete"));
 451                 }
 452         } else {
 453                 dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 454         }
 455
 456         return dimmed;
 457 }
 458
 459
 460
 461 gboolean
 462 modest_ui_dimming_rules_on_delete_folder (ModestWindow *win, gpointer user_data)
 463 {
 464         ModestDimmingRule *rule = NULL;
 465         TnyFolderType types[6];
 466         gboolean dimmed = FALSE;
 467
 468         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 469         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 470         rule = MODEST_DIMMING_RULE (user_data);
 471
 472         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 473         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 474         types[2] = TNY_FOLDER_TYPE_SENT;
 475         types[3] = TNY_FOLDER_TYPE_INBOX;
 476         types[4] = TNY_FOLDER_TYPE_ROOT;
 477         types[5] = TNY_FOLDER_TYPE_ARCHIVE;
 478
 479
 480         /* Check dimmed rule */
 481         if (!dimmed) {
 482                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 483                 if (dimmed)
 484                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 485         }
 486         if (!dimmed) {
 487                 dimmed = _selected_folder_is_any_of_type (win, types, 6);
 488                 if (dimmed)
 489                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 490         }
 491         if (!dimmed) {
 492                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 493                 if (dimmed)
 494                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 495         }
 496         if (!dimmed) {
 497                 dimmed = _selected_folder_is_MMC_or_POP_root (MODEST_MAIN_WINDOW(win));
 498                 if (dimmed)
 499                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 500         }
 501         if (!dimmed) {
 502                 dimmed = _transfer_mode_enabled (win);
 503                 if (dimmed)
 504                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 505         }
 506
 507         return dimmed;
 508 }
 509
 510 gboolean
 511 modest_ui_dimming_rules_on_sort (ModestWindow *win, gpointer user_data)
 512 {
 513         ModestDimmingRule *rule = NULL;
 514         gboolean dimmed = FALSE;
 515
 516         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 517         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 518         rule = MODEST_DIMMING_RULE (user_data);
 519
 520         /* Check dimmed rule */
 521         if (!dimmed) {
 522                 dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
 523                 modest_dimming_rule_set_notification (rule, _CS("ckdg_ib_nothing_to_sort"));
 524         }
 525
 526         if (!dimmed) {
 527                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 528                 modest_dimming_rule_set_notification (rule, _CS("ckdg_ib_nothing_to_sort"));
 529         }
 530
 531         return dimmed;
 532
 533 }
 534
 535 gboolean
 536 modest_ui_dimming_rules_on_rename_folder (ModestWindow *win, gpointer user_data)
 537 {
 538         ModestDimmingRule *rule = NULL;
 539         TnyFolderType types[4];
 540         gboolean dimmed = FALSE;
 541
 542         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 543         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 544         rule = MODEST_DIMMING_RULE (user_data);
 545
 546         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 547         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 548         types[2] = TNY_FOLDER_TYPE_SENT;
 549         types[3] = TNY_FOLDER_TYPE_ARCHIVE;
 550
 551         /* Check dimmed rule */
 552         if (!dimmed) {
 553                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 554                 if (dimmed)
 555                         modest_dimming_rule_set_notification (rule, "");
 556         }
 557         if (!dimmed) {
 558                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 559                 if (dimmed)
 560                         modest_dimming_rule_set_notification (rule, "");
 561         }
 562         if (!dimmed) {
 563                 dimmed = _selected_folder_is_any_of_type (win, types, 4);
 564                 if (dimmed)
 565                         modest_dimming_rule_set_notification (rule, "");
 566         }
 567
 568         return dimmed;
 569 }
 570
 571 gboolean
 572 modest_ui_dimming_rules_on_open_msg (ModestWindow *win, gpointer user_data)
 573 {
 574         ModestDimmingRule *rule = NULL;
 575         gboolean dimmed = FALSE;
 576         const DimmedState *state = NULL;
 577
 578         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 579         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 580         rule = MODEST_DIMMING_RULE (user_data);
 581         state = modest_window_get_dimming_state (win);
 582
 583         /* Check dimmed rule */
 584         if (!dimmed) {
 585                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 586         }
 587         if (!dimmed) {
 588                 dimmed = state->any_marked_as_deleted;
 589                 if (dimmed)
 590                         modest_dimming_rule_set_notification (rule, _("mcen_ib_message_already_deleted"));
 591         }
 592         if (!dimmed) {
 593                 dimmed = _selected_msg_sent_in_progress (win);
 594                 if (dimmed)
 595                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_open_while_sent"));
 596         }
 597
 598         return dimmed;
 599 }
 600
 601 gboolean
 602 modest_ui_dimming_rules_on_reply_msg (ModestWindow *win, gpointer user_data)
 603 {
 604         ModestDimmingRule *rule = NULL;
 605         gboolean dimmed = FALSE;
 606         TnyFolderType types[3];
 607
 608         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 609         rule = MODEST_DIMMING_RULE (user_data);
 610
 611         /* main window dimming rules */
 612         if (MODEST_IS_MAIN_WINDOW(win)) {
 613
 614                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 615                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 616                 types[2] = TNY_FOLDER_TYPE_ROOT;
 617
 618                 /* Check dimmed rule */
 619                 if (!dimmed) {
 620                         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 621                         if (dimmed)
 622                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 623                 }
 624                 if (!dimmed) {
 625                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 626                         if (dimmed)
 627                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_nothing_to_reply"));
 628                 }
 629                 if (!dimmed) {
 630                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, rule);
 631                 }
 632         /* msg view window dimming rules */
 633         } else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
 634
 635                 /* Check dimmed rule */
 636                 if (!dimmed) {
 637                         dimmed = _transfer_mode_enabled (win);
 638                         if (dimmed)
 639                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 640                 }
 641                 if (!dimmed) {
 642                         dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW (win));
 643                         if (dimmed)
 644                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 645                 }
 646         }
 647
 648         return dimmed;
 649 }
 650
 651
 652 gboolean
 653 modest_ui_dimming_rules_on_contents_msg (ModestWindow *win, gpointer user_data)
 654 {
 655         ModestDimmingRule *rule = NULL;
 656         gboolean dimmed = FALSE;
 657
 658         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 659         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 660         rule = MODEST_DIMMING_RULE (user_data);
 661
 662         /* Check dimmed rule */
 663         if (!dimmed) {
 664                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 665         }
 666         if (!dimmed) {
 667                 dimmed = _msg_download_completed (MODEST_MAIN_WINDOW(win));
 668                 if (dimmed)
 669                         modest_dimming_rule_set_notification (rule, "");
 670         }
 671
 672         return dimmed;
 673 }
 674
 675 gboolean
 676 modest_ui_dimming_rules_always_dimmed (ModestWindow *win, gpointer user_data)
 677 {
 678         gboolean dimmed = FALSE;
 679
 680         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 681
 682         /* Check dimmed rule */
 683         if (!dimmed)
 684                 dimmed = TRUE;
 685
 686         return dimmed;
 687 }
 688
 689 gboolean
 690 modest_ui_dimming_rules_on_delete_msg (ModestWindow *win, gpointer user_data)
 691 {
 692         ModestDimmingRule *rule = NULL;
 693         guint n_messages = 0;
 694         const DimmedState *state = NULL;
 695         gboolean dimmed = FALSE;
 696
 697         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 698         rule = MODEST_DIMMING_RULE (user_data);
 699         state = modest_window_get_dimming_state (win);
 700
 701         /* Check dimmed rule */
 702         if (MODEST_IS_MAIN_WINDOW (win)) {
 703                 if (!dimmed) {
 704                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 705                         if (dimmed)
 706                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_nothing_to_delete"));
 707                 }
 708                 if (!dimmed) {
 709                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 710                 }
 711                 if (!dimmed) {
 712                         dimmed = state->already_opened_msg;
 713                         n_messages = state->n_selected;
 714                         if (dimmed) {
 715                                 gchar *num = g_strdup_printf ("%d", n_messages);
 716                                 gchar *message = g_strdup_printf(_("mcen_nc_unable_to_delete_n_messages"), num);
 717                                 modest_dimming_rule_set_notification (rule, message);
 718                                 g_free(message);
 719                                 g_free(num);
 720                         }
 721
 722                 }
 723                 if (!dimmed) {
 724                         dimmed = state->any_marked_as_deleted;
 725                         if (dimmed) {
 726                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_message_already_deleted"));
 727                         }
 728                 }
 729                 if (!dimmed) {
 730                         dimmed = state->sent_in_progress;
 731                         if (dimmed)
 732                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 733                 }
 734         }
 735         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
 736                 if (!dimmed) {
 737                         dimmed = _transfer_mode_enabled (win);
 738                         if (dimmed)
 739                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 740                 }
 741                 if (!dimmed) {
 742                         dimmed = state->any_marked_as_deleted;
 743                         if (dimmed)
 744                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_message_already_deleted"));
 745                 }
 746
 747                 /* The delete button should be dimmed when viewing an attachment,
 748                  * but should be enabled when viewing a message from the list,
 749                  * or when viewing a search result.
 750                  */
 751                 if (!dimmed) {
 752                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
 753                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW(win));
 754                                 if (dimmed) {
 755                                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 756                                 }
 757                         }
 758                 }
 759         }
 760
 761         return dimmed;
 762 }
 763
 764 gboolean
 765 modest_ui_dimming_rules_on_details (ModestWindow *win, gpointer user_data)
 766 {
 767         ModestDimmingRule *rule = NULL;
 768         GtkWidget *header_view = NULL;
 769         gboolean dimmed = FALSE;
 770
 771         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 772         rule = MODEST_DIMMING_RULE (user_data);
 773
 774         /* main window dimming rules */
 775         if (MODEST_IS_MAIN_WINDOW(win)) {
 776
 777                 /* Check dimmed rule */
 778                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 779                                                                    MODEST_WIDGET_TYPE_HEADER_VIEW);
 780
 781                 /* If the header view has the focus: */
 782                 if (header_view && gtk_widget_is_focus (header_view)) {
 783                         /* Check dimmed rule */
 784                         if (!dimmed)
 785                                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 786                 }
 787                 else {
 788                         /* If the folder view has the focus: */
 789                         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 790                                 MODEST_WIDGET_TYPE_FOLDER_VIEW);
 791                         if (folder_view && gtk_widget_is_focus (folder_view)) {
 792                                 TnyFolderStore *folder_store
 793                                         = modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
 794                                 if (folder_store) {
 795                                         /* Only enable for folders, not accounts,
 796                                          * though the UI spec is not clear about that.
 797                                          * If we enable this for accounts then we must
 798                                          * add code to handle them in modest_ui_actions_on_details(). */
 799                                         if (!TNY_IS_FOLDER(folder_store)) {
 800                                                 dimmed = TRUE;
 801                                                 modest_dimming_rule_set_notification (rule, "");
 802                                         }
 803
 804                                         g_object_unref (folder_store);
 805                                 }
 806                         }
 807
 808                 }
 809
 810         /* msg view window dimming rules */
 811         } else {
 812
 813                 /* Check dimmed rule */
 814                 if (!dimmed) {
 815                         if (MODEST_IS_MSG_VIEW_WINDOW (win))
 816                                 dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW (win));
 817                         if (dimmed)
 818                                 modest_dimming_rule_set_notification (rule, "");
 819                 }
 820         }
 821
 822         return dimmed;
 823 }
 824
 825
 826 gboolean
 827 modest_ui_dimming_rules_on_mark_as_read_msg (ModestWindow *win, gpointer user_data)
 828 {
 829         ModestDimmingRule *rule = NULL;
 830         TnyHeaderFlags flags;
 831         const DimmedState *state = NULL;
 832         gboolean dimmed = FALSE;
 833
 834         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 835         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 836         rule = MODEST_DIMMING_RULE (user_data);
 837         state = modest_window_get_dimming_state (win);
 838
 839         flags = TNY_HEADER_FLAG_SEEN;
 840
 841         /* Check dimmed rule */
 842         if (!dimmed) {
 843                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 844         }
 845         if (!dimmed) {
 846                 dimmed = state->all_marked_as_seen;
 847                 if (dimmed)
 848                         modest_dimming_rule_set_notification (rule, "");
 849         }
 850
 851         return dimmed;
 852 }
 853
 854 gboolean
 855 modest_ui_dimming_rules_on_mark_as_unread_msg (ModestWindow *win, gpointer user_data)
 856 {
 857         ModestDimmingRule *rule = NULL;
 858         TnyHeaderFlags flags;
 859         const DimmedState *state = NULL;
 860         gboolean dimmed = FALSE;
 861
 862         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 863         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 864         rule = MODEST_DIMMING_RULE (user_data);
 865         state = modest_window_get_dimming_state (win);
 866
 867         flags = TNY_HEADER_FLAG_SEEN;
 868
 869         /* Check dimmed rule */
 870         if (!dimmed)
 871                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 872         if (!dimmed) {
 873                 dimmed = !state->any_marked_as_seen;
 874                 if (dimmed)
 875                         modest_dimming_rule_set_notification (rule, "");
 876         }
 877
 878         return dimmed;
 879 }
 880
 881 gboolean
 882 modest_ui_dimming_rules_on_move_to (ModestWindow *win, gpointer user_data)
 883 {
 884         ModestDimmingRule *rule = NULL;
 885         gboolean dimmed = FALSE;
 886
 887         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 888         rule = MODEST_DIMMING_RULE (user_data);
 889
 890         if (MODEST_IS_MAIN_WINDOW (win))
 891                 dimmed = modest_ui_dimming_rules_on_main_window_move_to (win, user_data);
 892         else if (MODEST_IS_MSG_VIEW_WINDOW (win))
 893                  dimmed = modest_ui_dimming_rules_on_view_window_move_to (win, user_data);
 894
 895         return dimmed;
 896 }
 897
 898
 899 gboolean
 900 modest_ui_dimming_rules_on_main_window_move_to (ModestWindow *win, gpointer user_data)
 901 {
 902         GtkWidget *folder_view = NULL;
 903         ModestDimmingRule *rule = NULL;
 904         guint n_messages = 0;
 905         const DimmedState *state = NULL;
 906         gboolean dimmed = FALSE;
 907
 908         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
 909         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 910         rule = MODEST_DIMMING_RULE (user_data);
 911         state = modest_window_get_dimming_state (win);
 912
 913         /* Get the folder view */
 914         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 915                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
 916
 917
 918         /* Check diming rules for folders transfer  */
 919         if (gtk_widget_is_focus (folder_view)) {
 920                 TnyFolderType types[5];
 921
 922                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 923                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 924                 types[2] = TNY_FOLDER_TYPE_SENT;
 925                 types[3] = TNY_FOLDER_TYPE_ROOT;
 926                 types[4] = TNY_FOLDER_TYPE_INBOX;
 927
 928                 /* Apply folder rules */
 929                 if (!dimmed) {
 930                         dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 931                         if (dimmed)
 932                                 modest_dimming_rule_set_notification (rule, _("emev_bd_unabletomove_items"));
 933                 }
 934                 if (!dimmed) {
 935                         dimmed = _selected_folder_is_any_of_type (win, types, 5);
 936                         if (dimmed)
 937                                 modest_dimming_rule_set_notification (rule, _("emev_bd_unabletomove_itemsr"));
 938                 }
 939         }
 940
 941         /* Check diming rules for messages transfer  */
 942         if (!dimmed) {
 943                 dimmed = state->already_opened_msg;
 944                 n_messages = state->n_selected;
 945                 if (dimmed) {
 946                         gchar *message = g_strdup_printf(_("emev_bd_unabletomove_items"), n_messages);
 947                         modest_dimming_rule_set_notification (rule, message);
 948                         g_free(message);
 949                 }
 950         }
 951         if (!dimmed) {
 952                 if (!gtk_widget_is_focus (folder_view))
 953                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 954
 955         }
 956
 957         return dimmed;
 958 }
 959
 960 gboolean
 961 modest_ui_dimming_rules_on_view_window_move_to (ModestWindow *win, gpointer user_data)
 962 {
 963         ModestDimmingRule *rule = NULL;
 964         gboolean dimmed = FALSE;
 965
 966         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 967         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 968         rule = MODEST_DIMMING_RULE (user_data);
 969
 970         /* Check dimmed rule */
 971         if (!dimmed) {
 972                 dimmed = _transfer_mode_enabled (win);
 973                 if (dimmed)
 974                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 975         }
 976
 977         if (!dimmed) {
 978                 if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
 979                         /* The move_to button should be dimmed when viewing an attachment,
 980                          * but should be enabled when viewing a message from the list,
 981                          * or when viewing a search result.
 982                          */
 983                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
 984                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
 985                         }
 986                 }
 987
 988                 if (dimmed)
 989                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_move_mail_attachment"));
 990         }
 991
 992         return dimmed;
 993 }
 994
 995 gboolean
 996 modest_ui_dimming_rules_on_find_msg (ModestWindow *win, gpointer user_data)
 997 {
 998         ModestDimmingRule *rule = NULL;
 999         gboolean dimmed = FALSE;
1000
1001         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1002         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1003         rule = MODEST_DIMMING_RULE (user_data);
1004
1005         /* Check dimmed rule */
1006         if (!dimmed) {
1007                 dimmed = _transfer_mode_enabled (win);
1008                 if (dimmed)
1009                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1010         }
1011
1012         return dimmed;
1013 }
1014
1015 gboolean
1016 modest_ui_dimming_rules_on_paste_msgs (ModestWindow *win, gpointer user_data)
1017 {
1018         ModestDimmingRule *rule = NULL;
1019         TnyFolderType types[3];
1020         gboolean dimmed = FALSE;
1021
1022         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1023         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1024         rule = MODEST_DIMMING_RULE (user_data);
1025
1026         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1027         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1028         types[2] = TNY_FOLDER_TYPE_SENT;
1029
1030         /* Check dimmed rule */
1031         if (!dimmed) {
1032                 dimmed = _clipboard_is_empty (win);
1033                 if (dimmed)
1034                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ecoc_ib_edwin_nothing_to_paste"));
1035         }
1036         if (!dimmed) {
1037                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1038                 if (dimmed)
1039                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ckct_ib_unable_to_paste_here"));
1040         }
1041         if (!dimmed) {
1042                 dimmed = !_folder_view_has_focus (win);
1043                 if (dimmed)
1044                         modest_dimming_rule_set_notification (rule,
1045                                         dgettext("hildon-common-strings",
1046                                         "ckct_ib_unable_to_paste_here"));
1047         }
1048         if (!dimmed) {
1049                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
1050                 if (dimmed) {
1051                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ckct_ib_unable_to_paste_here"));
1052                 }
1053         }
1054         if (!dimmed) {
1055                 dimmed = _selected_folder_is_same_as_source (win);
1056                 if (dimmed)
1057                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_copy_samefolder"));
1058         }
1059
1060         return dimmed;
1061 }
1062
1063
1064 gboolean
1065 modest_ui_dimming_rules_on_select_all (ModestWindow *win, gpointer user_data)
1066 {
1067         ModestDimmingRule *rule = NULL;
1068         gboolean dimmed = FALSE;
1069
1070         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1071         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1072         rule = MODEST_DIMMING_RULE (user_data);
1073
1074         /* Check dimmed rule */
1075         if (!dimmed)
1076                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1077
1078         if (!dimmed)
1079                 dimmed = _header_view_is_all_selected (MODEST_MAIN_WINDOW(win));
1080
1081         if (dimmed)
1082                 modest_dimming_rule_set_notification (rule, "");
1083
1084         return dimmed;
1085 }
1086
1087 gboolean
1088 modest_ui_dimming_rules_on_view_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, TRUE, TRUE, 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_save_attachments (ModestWindow *win, gpointer user_data)
1113 {
1114         ModestDimmingRule *rule = NULL;
1115         gboolean dimmed = FALSE;
1116
1117         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1118         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1119         rule = MODEST_DIMMING_RULE (user_data);
1120
1121         /* Check dimmed rule */
1122         if (!dimmed)
1123                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, FALSE, rule);
1124
1125         if (!dimmed) {
1126                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1127                 if (dimmed) {
1128                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1129                 }
1130         }
1131
1132         return dimmed;
1133 }
1134
1135 gboolean
1136 modest_ui_dimming_rules_on_remove_attachments (ModestWindow *win, gpointer user_data)
1137 {
1138         ModestDimmingRule *rule = NULL;
1139         const DimmedState *state = NULL;
1140         gboolean dimmed = FALSE;
1141
1142         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1143         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1144         rule = MODEST_DIMMING_RULE (user_data);
1145         state = modest_window_get_dimming_state (win);
1146
1147         /* Check in main window if there's only one message selected */
1148         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1149                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW (win), TRUE, rule);
1150         }
1151
1152         /* Check in view window if there's any attachment selected */
1153         if (!dimmed && MODEST_IS_MSG_VIEW_WINDOW (win)) {
1154                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, TRUE, NULL);
1155                 if (dimmed)
1156                         modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1157         }
1158
1159         /* cannot purge in editable drafts nor pop folders */
1160         if (!dimmed) {
1161                 dimmed = _invalid_folder_for_purge (win, rule);
1162         }
1163
1164         /* Check if the selected message in main window has attachments */
1165         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1166                 dimmed = state->any_has_attachments;
1167                 if (dimmed)
1168                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1169         }
1170
1171         /* Check if all attachments are already purged */
1172         if (!dimmed) {
1173                 dimmed = _purged_attach_selected (win, TRUE, rule);
1174         }
1175
1176         /* Check if the message is already downloaded */
1177         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1178                 dimmed = !_msg_download_completed (MODEST_MAIN_WINDOW (win));
1179                 if (dimmed)
1180                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1181         }
1182
1183
1184         return dimmed;
1185 }
1186
1187 gboolean
1188 modest_ui_dimming_rules_on_undo (ModestWindow *win, gpointer user_data)
1189 {
1190         ModestDimmingRule *rule = NULL;
1191         gboolean dimmed = FALSE;
1192
1193         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1194         rule = MODEST_DIMMING_RULE (user_data);
1195
1196         /* Check dimmed rule */
1197         if (!dimmed) {
1198                 dimmed = _clipboard_is_empty (win);
1199                 if (dimmed)
1200                         modest_dimming_rule_set_notification (rule, "");
1201         }
1202
1203         return dimmed;
1204 }
1205
1206 gboolean
1207 modest_ui_dimming_rules_on_cut (ModestWindow *win, gpointer user_data)
1208 {
1209         ModestDimmingRule *rule = NULL;
1210         gboolean dimmed = FALSE;
1211
1212         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1213         rule = MODEST_DIMMING_RULE (user_data);
1214
1215         /* Check common dimming rules */
1216         if (!dimmed) {
1217                 dimmed = _invalid_clipboard_selected (win, rule);
1218         }
1219
1220         /* Check window specific dimming rules */
1221         if (MODEST_IS_MAIN_WINDOW (win)) {
1222                 /* Get focused widget */
1223                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1224
1225                 if (MODEST_IS_HEADER_VIEW (focused)) {
1226                         if (!dimmed) {
1227                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1228                                 if (dimmed)
1229                                         modest_dimming_rule_set_notification (rule, "");
1230                         }
1231                         if (!dimmed) {
1232                                 dimmed = _selected_msg_sent_in_progress (win);
1233                                 if (dimmed)
1234                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1235                         }
1236                 }
1237                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1238                         TnyFolderType types[3];
1239
1240                         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1241                         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1242                         types[2] = TNY_FOLDER_TYPE_SENT;
1243
1244                         /* Apply folder rules */
1245                         if (!dimmed) {
1246                                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
1247                                 if (dimmed)
1248                                         modest_dimming_rule_set_notification (rule, _("emev_bd_unabletomove_items"));
1249                         }
1250                         if (!dimmed) {
1251                                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
1252                                 if (dimmed)
1253                                         modest_dimming_rule_set_notification (rule, _("emev_bd_unabletomove_itemsr"));
1254                         }
1255                         if (!dimmed) {
1256                                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1257                                 if (dimmed)
1258                                         modest_dimming_rule_set_notification (rule, _("emev_bd_unabletomove_itemsr"));
1259                         }
1260                 }
1261         }
1262
1263         return dimmed;
1264 }
1265
1266 gboolean
1267 modest_ui_dimming_rules_on_copy (ModestWindow *win, gpointer user_data)
1268 {
1269         ModestDimmingRule *rule = NULL;
1270         gboolean dimmed = FALSE;
1271
1272         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1273         rule = MODEST_DIMMING_RULE (user_data);
1274
1275         /* Check common dimming rules */
1276         if (!dimmed) {
1277                 dimmed = _invalid_clipboard_selected (win, rule);
1278         }
1279
1280         /* Check window specific dimming rules */
1281         if (MODEST_IS_MAIN_WINDOW (win)) {
1282                 /* Get focused widget */
1283                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1284
1285                 if (MODEST_IS_HEADER_VIEW (focused)) {
1286                         if (!dimmed) {
1287                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1288                                 if (dimmed)
1289                                         modest_dimming_rule_set_notification (rule, "");
1290                         }
1291                         if (!dimmed) {
1292                                 dimmed = _selected_msg_sent_in_progress (win);
1293                                 if (dimmed)
1294                                         modest_dimming_rule_set_notification (rule, _(""));
1295                         }
1296                 }
1297                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1298                         if (!dimmed) {
1299                                 dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
1300                                 if (dimmed)
1301                                         modest_dimming_rule_set_notification (rule, _(""));
1302                         }
1303                 }
1304         }
1305
1306         return dimmed;
1307 }
1308
1309 gboolean
1310 modest_ui_dimming_rules_on_view_previous (ModestWindow *win, gpointer user_data)
1311 {
1312         ModestDimmingRule *rule = NULL;
1313         gboolean dimmed = FALSE;
1314
1315         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1316         rule = MODEST_DIMMING_RULE (user_data);
1317
1318         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1319
1320         /* Check dimmed rule */
1321         if (!dimmed) {
1322                 dimmed = _transfer_mode_enabled (win);
1323                 if (dimmed)
1324                         modest_dimming_rule_set_notification (
1325                                         rule, _("mail_ib_notavailable_downloading"));
1326         }
1327         if (!dimmed) {
1328                 dimmed = modest_msg_view_window_first_message_selected (
1329                                 MODEST_MSG_VIEW_WINDOW(win));
1330                 modest_dimming_rule_set_notification (rule, NULL);
1331         }
1332
1333         return dimmed;
1334 }
1335
1336 gboolean
1337 modest_ui_dimming_rules_on_view_next (ModestWindow *win, gpointer user_data)
1338 {
1339         ModestDimmingRule *rule = NULL;
1340         gboolean dimmed = FALSE;
1341
1342         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1343         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1344         rule = MODEST_DIMMING_RULE (user_data);
1345
1346         /* Check dimmed rule */
1347         if (!dimmed) {
1348                 dimmed = _transfer_mode_enabled (win);
1349                 if (dimmed)
1350                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1351         }
1352         if (!dimmed) {
1353                 dimmed = modest_msg_view_window_last_message_selected (MODEST_MSG_VIEW_WINDOW (win));
1354                 modest_dimming_rule_set_notification (rule, NULL);
1355         }
1356
1357         return dimmed;
1358 }
1359
1360
1361 gboolean
1362 modest_ui_dimming_rules_on_tools_smtp_servers (ModestWindow *win, gpointer user_data)
1363 {
1364         const gboolean dimmed =
1365                 !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
1366                         TRUE);
1367
1368         return dimmed;
1369 }
1370
1371 gboolean
1372 modest_ui_dimming_rules_on_cancel_sending (ModestWindow *win, gpointer user_data)
1373 {
1374         ModestDimmingRule *rule = NULL;
1375         TnyFolderType types[1];
1376         guint n_messages = 0;
1377         const DimmedState *state = NULL;
1378         gboolean dimmed = FALSE;
1379
1380         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1381         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1382         rule = MODEST_DIMMING_RULE (user_data);
1383         state = modest_window_get_dimming_state (win);
1384
1385         types[0] = TNY_FOLDER_TYPE_OUTBOX;
1386
1387         /* Check dimmed rules */
1388         if (!dimmed) {
1389                 dimmed = state->already_opened_msg;
1390                 n_messages = state->n_selected;
1391                 if (dimmed)
1392                         modest_dimming_rule_set_notification (rule, _("mcen_ib_message_unableto_cancel_send"));
1393         }
1394         if (!dimmed) {
1395                 dimmed = !_selected_folder_is_any_of_type (win, types, 1);
1396                 if (dimmed)
1397                         modest_dimming_rule_set_notification (rule, "");
1398         }
1399         if (!dimmed) {
1400                 dimmed = !_sending_in_progress (win);
1401                 if (dimmed)
1402                         modest_dimming_rule_set_notification (rule, "");
1403         }
1404
1405         return dimmed;
1406 }
1407
1408 gboolean
1409 modest_ui_dimming_rules_on_send_receive (ModestWindow *win, gpointer user_data)
1410 {
1411         ModestDimmingRule *rule = NULL;
1412         gboolean dimmed = FALSE;
1413
1414         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1415         rule = MODEST_DIMMING_RULE (user_data);
1416
1417         /* Check dimmed rule */
1418         if (!dimmed) {
1419                 dimmed = !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
1420                                                           TRUE);
1421                 if (dimmed)
1422                         modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
1423         }
1424
1425         return dimmed;
1426 }
1427
1428 gboolean
1429 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
1430 {
1431         ModestDimmingRule *rule = NULL;
1432         gboolean dimmed = FALSE;
1433
1434         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1435         rule = MODEST_DIMMING_RULE (user_data);
1436
1437         /* Check dimmed rule */
1438         if (!dimmed) {
1439                 GtkClipboard *clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
1440                 gchar *selection = NULL;
1441                 selection = gtk_clipboard_wait_for_text (clipboard);
1442
1443                 dimmed = !((selection != NULL) && (modest_text_utils_validate_recipient (selection, NULL)));
1444         }
1445
1446         return dimmed;
1447 }
1448
1449 /* *********************** static utility functions ******************** */
1450
1451
1452 static gboolean
1453 _selected_folder_not_writeable (ModestMainWindow *win)
1454 {
1455         GtkWidget *folder_view = NULL;
1456         TnyFolderStore *parent_folder = NULL;
1457         ModestTnyFolderRules rules;
1458         gboolean result = FALSE;
1459
1460         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1461
1462         /* Get folder view */
1463         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1464                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1465         /* If no folder view, always dimmed */
1466         if (!folder_view)
1467                 return TRUE;
1468
1469         /* Get selected folder as parent of new folder to create */
1470         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1471         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1472                 if (parent_folder)
1473                         g_object_unref (parent_folder);
1474                 return TRUE;
1475         }
1476
1477         /* Check dimmed rule */
1478         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1479         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
1480
1481         /* free */
1482         g_object_unref (parent_folder);
1483
1484         return result;
1485 }
1486
1487 static gboolean
1488 _selected_folder_is_root_or_inbox (ModestMainWindow *win)
1489 {
1490         TnyFolderType types[2];
1491         gboolean result = FALSE;
1492
1493         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1494
1495         types[0] = TNY_FOLDER_TYPE_ROOT;
1496         types[1] = TNY_FOLDER_TYPE_INBOX;
1497
1498         /* Check folder type */
1499         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 2);
1500
1501         /* Check pop and MMC accounts */
1502         if (!result) {
1503                 result = _selected_folder_is_MMC_or_POP_root (win);
1504         }
1505
1506         return result;
1507 }
1508
1509
1510 static gboolean
1511 _selected_folder_is_root (ModestMainWindow *win)
1512 {
1513         TnyFolderType types[1];
1514         gboolean result = FALSE;
1515
1516         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1517
1518         /* All accounts are root items: */
1519         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1520                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1521         if (folder_view) {
1522                 gboolean is_account = FALSE;
1523                 TnyFolderStore *folder_store =
1524                         modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1525                 if (folder_store) {
1526                         is_account = TNY_IS_ACCOUNT (folder_store);
1527                         g_object_unref (folder_store);
1528                         folder_store = NULL;
1529                 }
1530
1531                 if (is_account)
1532                         return TRUE;
1533         }
1534
1535         /* Try something more precise: */
1536         types[0] = TNY_FOLDER_TYPE_ROOT;
1537
1538         /* Check folder type */
1539         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 1);
1540
1541         /* Check pop and MMC accounts */
1542         if (!result) {
1543                 result = _selected_folder_is_MMC_or_POP_root (win);
1544         }
1545
1546         return result;
1547 }
1548
1549 static gboolean
1550 _selected_folder_is_MMC_or_POP_root (ModestMainWindow *win)
1551 {
1552         GtkWidget *folder_view = NULL;
1553         TnyFolderStore *parent_folder = NULL;
1554         gboolean result = FALSE;
1555
1556         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1557                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1558         if (!folder_view)
1559                 return FALSE;
1560
1561         /* Get selected folder as parent of new folder to create */
1562         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1563         if (!parent_folder)
1564                 return TRUE;
1565
1566         if (TNY_IS_ACCOUNT (parent_folder)) {
1567                 /* If it's the local account then do not dim */
1568                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
1569                         result = FALSE;
1570                 } else {
1571                                 /* If it's the MMC root folder then dim it */
1572                         if (!strcmp (tny_account_get_id (TNY_ACCOUNT (parent_folder)), MODEST_MMC_ACCOUNT_ID)) {
1573                                         result = TRUE;
1574                         } else {
1575                                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
1576                                 /* If it's POP then dim */
1577                                 result = (modest_protocol_info_get_transport_store_protocol (proto_str) ==
1578                                                   MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
1579                         }
1580                 }
1581         }
1582         g_object_unref (parent_folder);
1583
1584         return result;
1585 }
1586
1587 static gboolean
1588 _header_view_is_all_selected (ModestMainWindow *win)
1589 {
1590         const DimmedState *state = NULL;
1591
1592         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1593
1594         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
1595
1596         return state->all_selected;
1597 }
1598
1599 static gboolean
1600 _selected_folder_is_empty (ModestMainWindow *win)
1601 {
1602         GtkWidget *folder_view = NULL;
1603         TnyFolderStore *folder = NULL;
1604         gboolean result = FALSE;
1605
1606         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1607
1608         /* Get folder view */
1609         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1610                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1611         /* If no folder view, always dimmed */
1612         if (!folder_view)
1613                 return TRUE;
1614
1615         /* Get selected folder as parent of new folder to create */
1616         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1617         if (!(folder && TNY_IS_FOLDER(folder))) {
1618                 if (folder)
1619                         g_object_unref (folder);
1620                 return TRUE;
1621         }
1622
1623         /* Check folder type */
1624         result = tny_folder_get_all_count (TNY_FOLDER (folder)) == 0;
1625
1626         /* free */
1627         g_object_unref (folder);
1628
1629         return result;
1630 }
1631
1632 static gboolean
1633 _folder_view_has_focus (ModestWindow *win)
1634 {
1635         GtkWidget *folder_view = NULL;
1636
1637         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1638
1639         /* Get folder view */
1640         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1641                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1642         if (!folder_view)
1643                 return FALSE;
1644
1645         if (gtk_widget_is_focus(folder_view))
1646                 return TRUE;
1647
1648         return FALSE;
1649 }
1650
1651 static gboolean
1652 _selected_folder_is_same_as_source (ModestWindow *win)
1653 {
1654         ModestEmailClipboard *clipboard = NULL;
1655         GtkWidget *folder_view = NULL;
1656         TnyFolderStore *folder = NULL;
1657         gboolean result = FALSE;
1658
1659         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1660
1661         /* Get folder view */
1662         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1663                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1664         if (!folder_view)
1665                 return FALSE;
1666
1667         /* Get selected folder as destination folder */
1668         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1669         if (!(folder && TNY_IS_FOLDER(folder))) {
1670                 result = FALSE;
1671                 goto frees;
1672         }
1673
1674         /* Check clipboard is cleared */
1675         clipboard = modest_runtime_get_email_clipboard ();
1676         if (modest_email_clipboard_cleared (clipboard)) {
1677                 result = FALSE;
1678                 goto frees;
1679         }
1680
1681         /* Check source folder */
1682         result = modest_email_clipboard_check_source_folder (clipboard,
1683                                                              (const TnyFolder *) folder);
1684
1685         /* Free */
1686  frees:
1687         g_object_unref (folder);
1688
1689         return result;
1690 }
1691
1692 static gboolean
1693 _selected_folder_is_any_of_type (ModestWindow *win,
1694                                  TnyFolderType types[],
1695                                  guint ntypes)
1696 {
1697         GtkWidget *folder_view = NULL;
1698         TnyFolderStore *folder = NULL;
1699         TnyFolderType folder_type;
1700         guint i=0;
1701         gboolean result = FALSE;
1702
1703         /*Get current folder */
1704         if (MODEST_IS_MAIN_WINDOW(win)) {
1705
1706                 /* Get folder view */
1707                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1708                                                                    MODEST_WIDGET_TYPE_FOLDER_VIEW);
1709                 /* If no folder view, always dimmed */
1710                 if (!folder_view)
1711                         return FALSE;
1712
1713                 /* Get selected folder as parent of new folder to create */
1714                 folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1715
1716                 if (!(folder && TNY_IS_FOLDER(folder))) {
1717                         if (folder)
1718                                 g_object_unref (folder);
1719                         return FALSE;
1720                 }
1721
1722                 /* Check folder type */
1723                 result = _folder_is_any_of_type (TNY_FOLDER(folder), types, ntypes);
1724         }
1725         else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
1726                 folder_type = modest_msg_view_window_get_folder_type (MODEST_MSG_VIEW_WINDOW (win));
1727                 for (i=0; i < ntypes; i++) {
1728                         result = result || folder_type == types[i];
1729                 }
1730         }
1731
1732
1733         /* free */
1734         g_object_unref (folder);
1735
1736         return result;
1737 }
1738
1739 static gboolean
1740 _folder_is_any_of_type (TnyFolder *folder,
1741                         TnyFolderType types[],
1742                         guint ntypes)
1743 {
1744         TnyFolderType folder_type;
1745         gboolean result = FALSE;
1746         guint i;
1747
1748         g_return_val_if_fail (TNY_IS_FOLDER(folder), FALSE);
1749
1750         /* Get folder type */
1751         folder_type = modest_tny_folder_guess_folder_type (folder);
1752
1753         /* Check foler type */
1754         for (i=0; i < ntypes; i++) {
1755                 result = result || folder_type == types[i];
1756         }
1757
1758         return result;
1759 }
1760
1761 static gboolean
1762 _selected_folder_is_snd_level (ModestMainWindow *win)
1763 {
1764         GtkWidget *folder_view = NULL;
1765         GtkTreeSelection *sel = NULL;
1766         GtkTreeModel *model = NULL;
1767         GtkTreePath *path = NULL;
1768         GtkTreeIter iter;
1769         TnyFolderStore *folder = NULL;
1770         gboolean result = FALSE;
1771
1772         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
1773
1774         /*Get curent folder */
1775         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1776                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1777         /* If no folder view, always dimmed */
1778         if (!folder_view)
1779                 goto frees;
1780
1781         /* Get selected folder as parent of new folder to create */
1782         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1783         if (!(folder && TNY_IS_FOLDER(folder))) {
1784                 goto frees;
1785         }
1786
1787         /* Check folder level */
1788         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW(folder_view));
1789         if (!gtk_tree_selection_get_selected (sel, &model, &iter))
1790                 goto frees;
1791         path = gtk_tree_model_get_path (model, &iter);
1792         result = gtk_tree_path_get_depth (path) > 2;
1793
1794  frees:
1795         if (folder != NULL)
1796                 g_object_unref (folder);
1797         if (path != NULL)
1798                 gtk_tree_path_free (path);
1799
1800         return result;
1801
1802 }
1803
1804 static gboolean
1805 _clipboard_is_empty (ModestWindow *win)
1806 {
1807         gboolean result = FALSE;
1808
1809         if (MODEST_IS_MAIN_WINDOW (win)) {
1810                 ModestEmailClipboard *clipboard = NULL;
1811                 clipboard = modest_runtime_get_email_clipboard ();
1812                 if (modest_email_clipboard_cleared (clipboard))
1813                  result = TRUE;
1814         }
1815
1816         return result;
1817 }
1818
1819 static gboolean
1820 _invalid_clipboard_selected (ModestWindow *win,
1821                        ModestDimmingRule *rule)
1822 {
1823         const DimmedState *state = NULL;
1824         gboolean result = FALSE;
1825
1826         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1827         state = modest_window_get_dimming_state (win);
1828
1829         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1830                 GtkClipboard *clipboard = NULL;
1831                 gchar *selection = NULL;
1832                 GtkWidget *focused = NULL;
1833
1834                 /* Get clipboard selection*/
1835                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
1836                 selection = gtk_clipboard_wait_for_text (clipboard);
1837
1838                 /* Get focuesed widget */
1839                 focused = gtk_window_get_focus (GTK_WINDOW (win));
1840
1841                 /* Check dimming */
1842                 result = ((selection == NULL) ||
1843                           (MODEST_IS_ATTACHMENTS_VIEW (focused)));
1844
1845                 if (result)
1846                         modest_dimming_rule_set_notification (rule, "");
1847
1848                 if (selection != NULL)
1849                         g_free(selection);
1850         }
1851         else if (MODEST_IS_MAIN_WINDOW (win)) {
1852                 /* Check dimming */
1853                 result = state->n_selected == 0;
1854                 if (result)
1855                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
1856         }
1857
1858         return result;
1859 }
1860
1861
1862 static gboolean
1863 _invalid_attach_selected (ModestWindow *win,
1864                           gboolean unique,
1865                           gboolean for_view,
1866                           gboolean for_remove,
1867                           ModestDimmingRule *rule)
1868 {
1869         GList *attachments, *node;
1870         gint n_selected;
1871         TnyHeaderFlags flags;
1872         gboolean nested_attachments = FALSE;
1873         gboolean selected_messages = FALSE;
1874         const DimmedState *state = NULL;
1875         gboolean result = FALSE;
1876
1877         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1878         state = modest_window_get_dimming_state (win);
1879
1880         if (MODEST_IS_MAIN_WINDOW (win)) {
1881                 flags = TNY_HEADER_FLAG_ATTACHMENTS;
1882                 if (!result)
1883                         result = !state->any_has_attachments;
1884         }
1885         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1886
1887                 /* Get selected atachments */
1888                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1889                 n_selected = g_list_length (attachments);
1890
1891                 /* Check unique */
1892                 if (!result) {
1893                         if (unique)
1894                                 result = n_selected != 1;
1895                         else
1896
1897                                 result = n_selected < 1;
1898                 }
1899
1900                 /* Check attached type (view operation not required) */
1901                 if (!result && !for_view)  {
1902                         for (node = attachments; node != NULL && !result; node = g_list_next (node)) {
1903                                 TnyMimePart *mime_part = TNY_MIME_PART (node->data);
1904                                 TnyList *nested_list = tny_simple_list_new ();
1905                                 if (!for_remove && TNY_IS_MSG (mime_part)) {
1906                                         selected_messages = TRUE;
1907                                         result = TRUE;
1908                                 }
1909                                 tny_mime_part_get_parts (mime_part, nested_list);
1910                                 if (!for_remove && tny_list_get_length (nested_list) > 0) {
1911                                         nested_attachments = TRUE;
1912                                         result = TRUE;
1913                                 }
1914                                 g_object_unref (nested_list);
1915                         }
1916                 }
1917
1918                 /* Set notifications */
1919                 if (result && rule != NULL) {
1920                         if (selected_messages) {
1921                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_save_attach_mail"));
1922                         } else if (nested_attachments) {
1923                                 modest_dimming_rule_set_notification (rule, _("FIXME:unable to save attachments with nested elements"));
1924                         } else if (n_selected == 0) {
1925                                 modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1926                         } else if (unique) {
1927                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_display_more"));
1928                         }
1929                 }
1930
1931                 /* Free */
1932                 g_list_free (attachments);
1933         }
1934
1935         return result;
1936 }
1937
1938 static gboolean
1939 _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule)
1940 {
1941         GList *attachments = NULL, *node;
1942         gint purged = 0;
1943         gint n_attachments = 0;
1944         gboolean result = FALSE;
1945
1946         /* This should check if _all_ the attachments are already purged. If only some
1947          * of them are purged, then it does not cause dim as there's a confirmation dialog
1948          * for removing only local attachments */
1949
1950         /* Get selected atachments */
1951         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1952                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1953         } else if (MODEST_IS_MAIN_WINDOW (win)) {
1954                 /* If we're in main window, we won't know if there are already purged attachments */
1955                 return FALSE;
1956         }
1957
1958         if (attachments == NULL)
1959                 return FALSE;
1960
1961         for (node = attachments; node != NULL; node = g_list_next (node)) {
1962                 TnyMimePart *mime_part = TNY_MIME_PART (node->data);
1963                 if (tny_mime_part_is_purged (mime_part)) {
1964                         purged++;
1965                 }
1966                 n_attachments++;
1967         }
1968
1969         /* Free */
1970         g_list_free (attachments);
1971
1972         if (all)
1973                 result = (purged == n_attachments);
1974         else
1975                 result = (purged > 0);
1976
1977         if (result && (rule != NULL))
1978                 modest_dimming_rule_set_notification (rule, _("mail_ib_attachment_already_purged"));
1979
1980         return result;
1981 }
1982
1983 static gboolean
1984 _invalid_msg_selected (ModestMainWindow *win,
1985                        gboolean unique,
1986                        ModestDimmingRule *rule)
1987 {
1988         GtkWidget *folder_view = NULL;
1989         const DimmedState *state = NULL;
1990         gboolean result = FALSE;
1991
1992         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1993         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (rule), FALSE);
1994         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
1995
1996         /* Get folder view to check focus */
1997         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
1998                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1999
2000         /* Check dimmed rule (TODO: check focus on widgets */
2001         if (!result) {
2002                 result = ((state->n_selected == 0 ) ||
2003                           (gtk_widget_is_focus (folder_view)));
2004                 if (result)
2005                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2006         }
2007         if (!result && unique) {
2008                 result = state->n_selected > 1;
2009                 if (result)
2010                         modest_dimming_rule_set_notification (rule, _("mcen_ib_select_one_message"));
2011         }
2012
2013         return result;
2014 }
2015
2016
2017 static gboolean
2018 _msg_download_in_progress (ModestMsgViewWindow *win)
2019 {
2020         gboolean result = FALSE;
2021
2022         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW (win), FALSE);
2023
2024         result = modest_msg_view_window_toolbar_on_transfer_mode (win);
2025
2026         return result;
2027 }
2028
2029 static gboolean
2030 _msg_download_completed (ModestMainWindow *win)
2031 {
2032         const DimmedState *state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2033         return state->any_marked_as_cached;
2034 }
2035
2036 static void
2037 fill_list_of_caches (gpointer key, gpointer value, gpointer userdata)
2038 {
2039         GSList **send_queues = (GSList **) userdata;
2040         *send_queues = g_slist_prepend (*send_queues, value);
2041 }
2042
2043 static gboolean
2044 _selected_msg_sent_in_progress (ModestWindow *win)
2045 {
2046         const DimmedState *state = modest_window_get_dimming_state (win);
2047         return state->sent_in_progress;
2048 }
2049
2050
2051 static gboolean
2052 _sending_in_progress (ModestWindow *win)
2053 {
2054         gboolean result = FALSE;
2055
2056         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW (win), FALSE);
2057
2058         /* Check if send operation is in progress */
2059         result = modest_main_window_send_receive_in_progress (MODEST_MAIN_WINDOW (win));
2060
2061         return result;
2062 }
2063
2064 static gboolean
2065 _invalid_folder_for_purge (ModestWindow *win,
2066                            ModestDimmingRule *rule)
2067 {
2068         TnyMsg *msg = NULL;
2069         TnyFolder *folder = NULL;
2070         TnyAccount *account = NULL;
2071         gboolean result = FALSE;
2072
2073         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2074
2075                 /* Get folder and account of message */
2076                 msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2077                 g_return_val_if_fail(msg != NULL, TRUE);
2078                 folder = tny_msg_get_folder (msg);
2079                 if (folder == NULL) {
2080                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
2081                         goto frees;
2082                 }
2083                 g_object_unref (msg);
2084         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2085                 GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2086                                                                               MODEST_WIDGET_TYPE_FOLDER_VIEW);
2087                 if (!folder_view)
2088                         return FALSE;
2089                 folder = TNY_FOLDER (modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view)));
2090                 if (folder == NULL || ! TNY_IS_FOLDER (folder))
2091                         goto frees;
2092         } else {
2093                 g_return_val_if_reached (FALSE);
2094         }
2095         account = modest_tny_folder_get_account (folder);
2096         if (account == NULL) goto frees;
2097
2098         /* Check account */
2099         if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (account))) {
2100                 TnyFolderType types[2];
2101                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
2102                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
2103
2104                 if (_selected_folder_is_any_of_type (win, types, 2)) {
2105                         result = TRUE;
2106                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_editable_msg"));
2107                 } else {
2108                         /* We're currently disabling purge in any local store */
2109                         result = TRUE;
2110                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
2111                 }
2112         } else {
2113                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (account));
2114                 /* If it's POP then dim */
2115                 if (modest_protocol_info_get_transport_store_protocol (proto_str) ==
2116                     MODEST_PROTOCOL_STORE_POP) {
2117                         GList *attachments = NULL;
2118                         gint n_selected = 0;
2119                         result = TRUE;
2120
2121                         /* TODO: This check is here to prevent a gwarning, but this looks like a logic error.
2122                          * murrayc */
2123                         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2124                                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2125                                 n_selected = g_list_length (attachments);
2126                                 g_list_free (attachments);
2127                         }
2128
2129                         modest_dimming_rule_set_notification (rule,
2130                                                               ngettext ("mail_ib_unable_to_pure_attach_pop_mail_singular",
2131                                                                         "mail_ib_unable_to_pure_attach_pop_mail_plural",
2132                                                                         n_selected));
2133                 }
2134         }
2135
2136 frees:
2137         if (folder != NULL)
2138                 g_object_unref (folder);
2139         if (account != NULL)
2140                 g_object_unref (account);
2141
2142         return result;
2143 }
2144
2145 static gboolean
2146 _transfer_mode_enabled (ModestWindow *win)
2147 {
2148         gboolean result = FALSE;
2149
2150         /* Check dimming */
2151         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2152                 result = modest_msg_view_window_transfer_mode_enabled (MODEST_MSG_VIEW_WINDOW (win));
2153         } else if (MODEST_IS_MAIN_WINDOW(win)) {
2154                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW (win));
2155         } else {
2156                 g_warning("_transfer_mode_enabled called with wrong window type");
2157         }
2158
2159         return result;
2160 }
2161