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 _selected_folder_is_empty (ModestMainWindow *win);
  62 static gboolean _selected_folder_is_same_as_source (ModestWindow *win);
  63 static gboolean _msg_download_in_progress (ModestMsgViewWindow *win);
  64 static gboolean _msg_download_completed (ModestMainWindow *win);
  65 static gboolean _selected_msg_sent_in_progress (ModestWindow *win);
  66 static gboolean _sending_in_progress (ModestWindow *win);
  67 /* static gboolean _message_is_marked_as_deleted (ModestMsgViewWindow *win); */
  68 /* static gboolean _selected_message_is_marked_as_deleted (ModestMainWindow *win); */
  69 static gboolean _invalid_folder_for_purge (ModestWindow *win, ModestDimmingRule *rule);
  70 static gboolean _transfer_mode_enabled (ModestWindow *win);
  71
  72 static void  fill_list_of_caches (gpointer key, gpointer value, gpointer userdata);
  73
  74
  75 static DimmedState *
  76 _define_main_window_dimming_state (ModestMainWindow *window)
  77 {
  78         DimmedState *state = NULL;
  79         GtkWidget *header_view = NULL;
  80         TnyList *selected_headers = NULL;
  81         TnyIterator *iter = NULL;
  82         TnyHeader *header = NULL;
  83         ModestCacheMgr *cache_mgr = NULL;
  84         GHashTable *send_queue_cache = NULL;
  85         ModestTnySendQueue *send_queue = NULL;
  86         GSList *send_queues = NULL, *node = NULL;
  87         ModestWindowMgr *mgr = NULL;
  88         gboolean found = FALSE;
  89         gchar *msg_uid = NULL;
  90         TnyHeaderFlags flags;
  91
  92         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(window), NULL);
  93
  94         /* Init state */
  95         state = g_slice_new0 (DimmedState);
  96         state->n_selected = 0;
  97         state->already_opened_msg = FALSE;
  98         state->any_marked_as_deleted = FALSE;
  99         state->all_marked_as_deleted = FALSE;
 100         state->any_marked_as_seen = FALSE;
 101         state->all_marked_as_seen = FALSE;
 102         state->any_marked_as_cached = FALSE;
 103         state->all_marked_as_cached = FALSE;
 104         state->any_has_attachments = FALSE;
 105         state->all_has_attachments = FALSE;
 106         state->sent_in_progress = FALSE;
 107
 108         /* Get header view and selected headers */
 109         header_view = modest_main_window_get_child_widget (window, MODEST_WIDGET_TYPE_HEADER_VIEW);
 110         selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
 111         if (!selected_headers)
 112                 return state;
 113
 114         /* Examine selected headers */
 115         iter = tny_list_create_iterator (selected_headers);
 116         while (!tny_iterator_is_done (iter)) {
 117                 header = TNY_HEADER (tny_iterator_get_current (iter));
 118                 flags = tny_header_get_flags (header);
 119
 120                 /* No selected */
 121                 state->n_selected++;
 122
 123                 /* Already opened */
 124                 mgr = modest_runtime_get_window_mgr ();
 125                 if (!state->already_opened_msg)
 126                         state->already_opened_msg = modest_window_mgr_find_registered_header (mgr, header, NULL);
 127
 128                 /* Mark as deleted */
 129                 state->any_marked_as_deleted &= flags & TNY_HEADER_FLAG_DELETED;
 130                 if (!state->any_marked_as_deleted)
 131                         state->any_marked_as_deleted = flags & TNY_HEADER_FLAG_DELETED;
 132
 133                 /* Mark as seen */
 134                 state->any_marked_as_seen &= flags & TNY_HEADER_FLAG_SEEN;
 135                 if (!state->any_marked_as_seen)
 136                         state->any_marked_as_seen = flags & TNY_HEADER_FLAG_SEEN;
 137
 138                 /* Mark as cached */
 139                 state->any_marked_as_cached &= flags & TNY_HEADER_FLAG_CACHED;
 140                 if (!state->any_marked_as_cached)
 141                         state->any_marked_as_cached = flags & TNY_HEADER_FLAG_CACHED;
 142
 143                 /* Mark has_attachments */
 144                 state->any_has_attachments &= flags & TNY_HEADER_FLAG_ATTACHMENTS;
 145                 if (!state->any_has_attachments)
 146                         state->any_has_attachments = flags & TNY_HEADER_FLAG_ATTACHMENTS;
 147
 148                 /* sent in progress */
 149                 msg_uid = modest_tny_send_queue_get_msg_id (header);
 150                 if (!state->sent_in_progress) {
 151                         cache_mgr = modest_runtime_get_cache_mgr ();
 152                         send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
 153                                                                        MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
 154
 155                         g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
 156
 157                         for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
 158                                 send_queue = MODEST_TNY_SEND_QUEUE (node->data);
 159
 160                                 /* Check if msg uid is being processed inside send queue */
 161                                 found = modest_tny_send_queue_msg_is_being_sent (send_queue, msg_uid);
 162                         }
 163                         state->sent_in_progress = found;
 164                 }
 165
 166                 tny_iterator_next (iter);
 167                 g_object_unref (header);
 168         }
 169
 170         /* Free */
 171         g_free(msg_uid);
 172         g_object_unref(selected_headers);
 173         g_object_unref(iter);
 174         g_slist_free (send_queues);
 175
 176         return state;
 177 }
 178
 179 static DimmedState *
 180 _define_msg_view_window_dimming_state (ModestMsgViewWindow *window)
 181 {
 182         DimmedState *state = NULL;
 183         TnyHeader *header = NULL;
 184         ModestCacheMgr *cache_mgr = NULL;
 185         GHashTable *send_queue_cache = NULL;
 186         ModestTnySendQueue *send_queue = NULL;
 187         GSList *send_queues = NULL, *node = NULL;
 188         gboolean found = FALSE;
 189         gchar *msg_uid = NULL;
 190         TnyHeaderFlags flags;
 191
 192         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(window), NULL);
 193
 194         /* Init state */
 195         state = g_slice_new0 (DimmedState);
 196         state->n_selected = 0;
 197         state->already_opened_msg = FALSE;
 198         state->any_marked_as_deleted = FALSE;
 199         state->all_marked_as_deleted = FALSE;
 200         state->any_marked_as_seen = FALSE;
 201         state->all_marked_as_seen = FALSE;
 202         state->any_marked_as_cached = FALSE;
 203         state->all_marked_as_cached = FALSE;
 204         state->any_has_attachments = FALSE;
 205         state->all_has_attachments = FALSE;
 206         state->sent_in_progress = FALSE;
 207
 208         header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW(window));
 209         g_return_val_if_fail (TNY_IS_HEADER(header), state);
 210         flags = tny_header_get_flags (header);
 211
 212         /* Selected */
 213         state->n_selected++;
 214
 215         /* Mark as deleted */
 216         state->any_marked_as_deleted &= flags & TNY_HEADER_FLAG_DELETED;
 217         if (!state->any_marked_as_deleted)
 218                 state->any_marked_as_deleted = flags & TNY_HEADER_FLAG_DELETED;
 219
 220         /* Mark as seen */
 221         state->any_marked_as_seen &= flags & TNY_HEADER_FLAG_SEEN;
 222         if (!state->any_marked_as_seen)
 223                 state->any_marked_as_seen = flags & TNY_HEADER_FLAG_SEEN;
 224
 225         /* Mark as cached */
 226         state->any_marked_as_cached &= flags & TNY_HEADER_FLAG_CACHED;
 227         if (!state->any_marked_as_cached)
 228                 state->any_marked_as_cached = flags & TNY_HEADER_FLAG_CACHED;
 229
 230         /* Mark has_attachments */
 231         state->any_has_attachments &= flags & TNY_HEADER_FLAG_ATTACHMENTS;
 232         if (!state->any_has_attachments)
 233                 state->any_has_attachments = flags & TNY_HEADER_FLAG_ATTACHMENTS;
 234
 235         /* sent in progress */
 236         msg_uid = modest_tny_send_queue_get_msg_id (header);
 237         if (!state->sent_in_progress) {
 238                 cache_mgr = modest_runtime_get_cache_mgr ();
 239                 send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
 240                                                                MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
 241
 242                 g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
 243
 244                 for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
 245                         send_queue = MODEST_TNY_SEND_QUEUE (node->data);
 246
 247                         /* Check if msg uid is being processed inside send queue */
 248                         found = modest_tny_send_queue_msg_is_being_sent (send_queue, msg_uid);
 249                 }
 250                 state->sent_in_progress = found;
 251         }
 252
 253         /* Free */
 254         g_free(msg_uid);
 255         g_object_unref (header);
 256         g_slist_free (send_queues);
 257
 258         return state;
 259 }
 260
 261
 262 DimmedState *
 263 modest_ui_dimming_rules_define_dimming_state (ModestWindow *window)
 264 {
 265         DimmedState *state = NULL;
 266
 267         g_return_val_if_fail (MODEST_IS_WINDOW(window), NULL);
 268
 269         if (MODEST_IS_MAIN_WINDOW (window))
 270                 state = _define_main_window_dimming_state (MODEST_MAIN_WINDOW(window));
 271         else if (MODEST_IS_MSG_VIEW_WINDOW (window)) {
 272                 state = _define_msg_view_window_dimming_state (MODEST_MSG_VIEW_WINDOW(window));
 273         }
 274
 275         return state;
 276 }
 277
 278
 279 gboolean
 280 modest_ui_dimming_rules_on_new_msg (ModestWindow *win, gpointer user_data)
 281 {
 282         ModestDimmingRule *rule = NULL;
 283         gboolean dimmed = FALSE;
 284
 285         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 286         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 287         rule = MODEST_DIMMING_RULE (user_data);
 288
 289         /* Check dimmed rule */
 290         if (!dimmed) {
 291                 if (MODEST_IS_MSG_VIEW_WINDOW (win))
 292                         dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW(win));
 293                 if (dimmed)
 294                         modest_dimming_rule_set_notification (rule, "");
 295         }
 296
 297         return dimmed;
 298 }
 299
 300 gboolean
 301 modest_ui_dimming_rules_on_csm_new_folder (ModestWindow *win, gpointer user_data)
 302 {
 303         ModestDimmingRule *rule = NULL;
 304         gboolean dimmed = FALSE;
 305
 306         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 307         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 308         rule = MODEST_DIMMING_RULE (user_data);
 309
 310         /* Check common new folder menu item dimming rules */
 311         dimmed = modest_ui_dimming_rules_on_new_folder (win, user_data);
 312
 313         /* Check CSM specific dimming rules */
 314         if (!dimmed) {
 315                 dimmed = _selected_folder_is_snd_level (MODEST_MAIN_WINDOW(win));
 316                 if (dimmed)
 317                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 318         }
 319
 320         return dimmed;
 321 }
 322
 323 gboolean
 324 modest_ui_dimming_rules_on_new_folder (ModestWindow *win, gpointer user_data)
 325 {
 326         ModestDimmingRule *rule = NULL;
 327         GtkWidget *folder_view = NULL;
 328         TnyFolderStore *parent_folder = NULL;
 329         gboolean dimmed = FALSE;
 330
 331         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 332         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 333         rule = MODEST_DIMMING_RULE (user_data);
 334
 335         /* Get selected folder as parent of new folder to create */
 336         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 337                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
 338         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
 339         if (!parent_folder)
 340                 return TRUE;
 341
 342         if (TNY_IS_ACCOUNT (parent_folder)) {
 343                 /* If it's the local account then do not dim */
 344                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
 345                         dimmed = FALSE;
 346                 } else {
 347                         const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
 348                         /* If it's POP then dim */
 349                         dimmed = (modest_protocol_info_get_transport_store_protocol (proto_str) ==
 350                                   MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
 351                         if (dimmed)
 352                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 353                 }
 354         } else {
 355                 /* TODO: the specs say that only one level of subfolder is allowed, is this true ? */
 356
 357                 TnyFolderType types[3];
 358
 359                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 360                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 361                 types[2] = TNY_FOLDER_TYPE_SENT;
 362
 363                 /* Apply folder rules */
 364                 if (!dimmed) {
 365                         dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 366                         if (dimmed)
 367                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 368                 }
 369                 if (!dimmed) {
 370                         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 371                         if (dimmed)
 372                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 373                 }
 374         }
 375         g_object_unref (parent_folder);
 376
 377         return dimmed;
 378 }
 379
 380 gboolean
 381 modest_ui_dimming_rules_on_delete (ModestWindow *win, gpointer user_data)
 382 {
 383         ModestDimmingRule *rule = NULL;
 384         GtkWidget *folder_view = NULL;
 385         GtkWidget *header_view = NULL;
 386         gboolean dimmed = FALSE;
 387
 388         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 389         rule = MODEST_DIMMING_RULE (user_data);
 390
 391         if (MODEST_IS_MAIN_WINDOW (win)) {
 392                 /* Get the folder view */
 393                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 394                                                                    MODEST_WIDGET_TYPE_FOLDER_VIEW);
 395
 396                 /* Get header view */
 397                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 398                                                            MODEST_WIDGET_TYPE_HEADER_VIEW);
 399
 400                 if (header_view && gtk_widget_is_focus (header_view))
 401                         dimmed = modest_ui_dimming_rules_on_delete_msg (win, rule);
 402
 403                 if (folder_view && gtk_widget_is_focus (folder_view))
 404                         dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 405
 406                 if (header_view && folder_view &&
 407                     !gtk_widget_is_focus (header_view) &&
 408                     !gtk_widget_is_focus (folder_view)) {
 409                         dimmed = TRUE;
 410                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ckct_ib_nothing_to_delete"));
 411                 }
 412         } else {
 413                 dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 414         }
 415
 416         return dimmed;
 417 }
 418
 419
 420
 421 gboolean
 422 modest_ui_dimming_rules_on_delete_folder (ModestWindow *win, gpointer user_data)
 423 {
 424         ModestDimmingRule *rule = NULL;
 425         TnyFolderType types[6];
 426         gboolean dimmed = FALSE;
 427
 428         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 429         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 430         rule = MODEST_DIMMING_RULE (user_data);
 431
 432         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 433         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 434         types[2] = TNY_FOLDER_TYPE_SENT;
 435         types[3] = TNY_FOLDER_TYPE_INBOX;
 436         types[4] = TNY_FOLDER_TYPE_ROOT;
 437         types[5] = TNY_FOLDER_TYPE_ARCHIVE;
 438
 439
 440         /* Check dimmed rule */
 441         if (!dimmed) {
 442                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 443                 if (dimmed)
 444                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 445         }
 446         if (!dimmed) {
 447                 dimmed = _selected_folder_is_any_of_type (win, types, 6);
 448                 if (dimmed)
 449                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 450         }
 451         if (!dimmed) {
 452                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 453                 if (dimmed)
 454                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 455         }
 456         if (!dimmed) {
 457                 dimmed = _selected_folder_is_MMC_or_POP_root (MODEST_MAIN_WINDOW(win));
 458                 if (dimmed)
 459                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 460         }
 461
 462         return dimmed;
 463 }
 464
 465 gboolean
 466 modest_ui_dimming_rules_on_sort (ModestWindow *win, gpointer user_data)
 467 {
 468         ModestDimmingRule *rule = NULL;
 469         gboolean dimmed = FALSE;
 470
 471         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 472         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 473         rule = MODEST_DIMMING_RULE (user_data);
 474
 475         /* Check dimmed rule */
 476         if (!dimmed) {
 477                 dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
 478                 modest_dimming_rule_set_notification (rule, _CS("ckdg_ib_nothing_to_sort"));
 479         }
 480
 481         if (!dimmed) {
 482                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 483                 modest_dimming_rule_set_notification (rule, _CS("ckdg_ib_nothing_to_sort"));
 484         }
 485
 486         return dimmed;
 487
 488 }
 489
 490 gboolean
 491 modest_ui_dimming_rules_on_rename_folder (ModestWindow *win, gpointer user_data)
 492 {
 493         ModestDimmingRule *rule = NULL;
 494         TnyFolderType types[4];
 495         gboolean dimmed = FALSE;
 496
 497         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 498         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 499         rule = MODEST_DIMMING_RULE (user_data);
 500
 501         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 502         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 503         types[2] = TNY_FOLDER_TYPE_SENT;
 504         types[3] = TNY_FOLDER_TYPE_ARCHIVE;
 505
 506         /* Check dimmed rule */
 507         if (!dimmed) {
 508                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 509                 if (dimmed)
 510                         modest_dimming_rule_set_notification (rule, "");
 511         }
 512         if (!dimmed) {
 513                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 514                 if (dimmed)
 515                         modest_dimming_rule_set_notification (rule, "");
 516         }
 517         if (!dimmed) {
 518                 dimmed = _selected_folder_is_any_of_type (win, types, 4);
 519                 if (dimmed)
 520                         modest_dimming_rule_set_notification (rule, "");
 521         }
 522
 523         return dimmed;
 524 }
 525
 526 gboolean
 527 modest_ui_dimming_rules_on_open_msg (ModestWindow *win, gpointer user_data)
 528 {
 529         ModestDimmingRule *rule = NULL;
 530         gboolean dimmed = FALSE;
 531         const DimmedState *state = NULL;
 532
 533         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 534         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 535         rule = MODEST_DIMMING_RULE (user_data);
 536         state = modest_window_get_dimming_state (win);
 537
 538         /* Check dimmed rule */
 539         if (!dimmed) {
 540                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 541         }
 542         if (!dimmed) {
 543                 dimmed = state->any_marked_as_deleted;
 544                 if (dimmed)
 545                         modest_dimming_rule_set_notification (rule, _("mcen_ib_message_already_deleted"));
 546         }
 547         if (!dimmed) {
 548                 dimmed = _selected_msg_sent_in_progress (win);
 549                 if (dimmed)
 550                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_open_while_sent"));
 551         }
 552
 553         return dimmed;
 554 }
 555
 556 gboolean
 557 modest_ui_dimming_rules_on_reply_msg (ModestWindow *win, gpointer user_data)
 558 {
 559         ModestDimmingRule *rule = NULL;
 560         gboolean dimmed = FALSE;
 561         TnyFolderType types[3];
 562
 563         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 564         rule = MODEST_DIMMING_RULE (user_data);
 565
 566         /* main window dimming rules */
 567         if (MODEST_IS_MAIN_WINDOW(win)) {
 568
 569                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 570                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 571                 types[2] = TNY_FOLDER_TYPE_ROOT;
 572
 573                 /* Check dimmed rule */
 574                 if (!dimmed) {
 575                         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 576                         if (dimmed)
 577                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 578                 }
 579                 if (!dimmed) {
 580                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 581                         if (dimmed)
 582                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_nothing_to_reply"));
 583                 }
 584                 if (!dimmed) {
 585                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, rule);
 586                 }
 587         /* msg view window dimming rules */
 588         } else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
 589
 590                 /* Check dimmed rule */
 591                 if (!dimmed) {
 592                         dimmed = _transfer_mode_enabled (win);
 593                         if (dimmed)
 594                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 595                 }
 596                 if (!dimmed) {
 597                         if (MODEST_IS_MSG_VIEW_WINDOW (win))
 598                                 dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW (win));
 599                         if (dimmed)
 600                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 601                 }
 602         }
 603
 604         return dimmed;
 605 }
 606
 607
 608 gboolean
 609 modest_ui_dimming_rules_on_contents_msg (ModestWindow *win, gpointer user_data)
 610 {
 611         ModestDimmingRule *rule = NULL;
 612         gboolean dimmed = FALSE;
 613
 614         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 615         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 616         rule = MODEST_DIMMING_RULE (user_data);
 617
 618         /* Check dimmed rule */
 619         if (!dimmed) {
 620                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 621         }
 622         if (!dimmed) {
 623                 dimmed = _msg_download_completed (MODEST_MAIN_WINDOW(win));
 624                 if (dimmed)
 625                         modest_dimming_rule_set_notification (rule, "");
 626         }
 627
 628         return dimmed;
 629 }
 630
 631 gboolean
 632 modest_ui_dimming_rules_always_dimmed (ModestWindow *win, gpointer user_data)
 633 {
 634         gboolean dimmed = FALSE;
 635
 636         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 637
 638         /* Check dimmed rule */
 639         if (!dimmed)
 640                 dimmed = TRUE;
 641
 642         return dimmed;
 643 }
 644
 645 gboolean
 646 modest_ui_dimming_rules_on_delete_msg (ModestWindow *win, gpointer user_data)
 647 {
 648         ModestDimmingRule *rule = NULL;
 649         guint n_messages = 0;
 650         const DimmedState *state = NULL;
 651         gboolean dimmed = FALSE;
 652
 653         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 654         rule = MODEST_DIMMING_RULE (user_data);
 655         state = modest_window_get_dimming_state (win);
 656
 657         /* Check dimmed rule */
 658         if (MODEST_IS_MAIN_WINDOW (win)) {
 659                 if (!dimmed) {
 660                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 661                         if (dimmed)
 662                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_nothing_to_delete"));
 663                 }
 664                 if (!dimmed) {
 665                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 666                 }
 667                 if (!dimmed) {
 668                         dimmed = state->already_opened_msg;
 669                         n_messages = state->n_selected;
 670                         if (dimmed) {
 671                                 gchar *num = g_strdup_printf ("%d", n_messages);
 672                                 gchar *message = g_strdup_printf(_("mcen_nc_unable_to_delete_n_messages"), num);
 673                                 modest_dimming_rule_set_notification (rule, message);
 674                                 g_free(message);
 675                                 g_free(num);
 676                         }
 677
 678                 }
 679                 if (!dimmed) {
 680                         dimmed = state->any_marked_as_deleted;
 681                         if (dimmed) {
 682                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_message_already_deleted"));
 683                         }
 684                 }
 685                 if (!dimmed) {
 686                         dimmed = state->sent_in_progress;
 687                         if (dimmed)
 688                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 689                 }
 690         }
 691         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
 692                 if (!dimmed) {
 693                         dimmed = _transfer_mode_enabled (win);
 694                         if (dimmed)
 695                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 696                 }
 697                 if (!dimmed) {
 698                         dimmed = state->any_marked_as_deleted;
 699                         if (dimmed)
 700                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_message_already_deleted"));
 701                 }
 702
 703                 /* Commented out, because deletion should be possible even when
 704                  * the message window has no header view model, which will be the
 705                  * case when it is not the selected message in the header view.
 706                  */
 707
 708                 if (!dimmed) {
 709                         dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW(win));
 710                         if (dimmed) {
 711                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 712                         }
 713                 }
 714         }
 715
 716         return dimmed;
 717 }
 718
 719 gboolean
 720 modest_ui_dimming_rules_on_details (ModestWindow *win, gpointer user_data)
 721 {
 722         ModestDimmingRule *rule = NULL;
 723         GtkWidget *header_view = NULL;
 724         gboolean dimmed = FALSE;
 725
 726         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 727         rule = MODEST_DIMMING_RULE (user_data);
 728
 729         /* main window dimming rules */
 730         if (MODEST_IS_MAIN_WINDOW(win)) {
 731
 732                 /* Check dimmed rule */
 733                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 734                                                                    MODEST_WIDGET_TYPE_HEADER_VIEW);
 735
 736                 /* If the header view has the focus: */
 737                 if (header_view && gtk_widget_is_focus (header_view)) {
 738                         /* Check dimmed rule */
 739                         if (!dimmed)
 740                                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 741                 }
 742                 else {
 743                         /* If the folder view has the focus: */
 744                         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 745                                 MODEST_WIDGET_TYPE_FOLDER_VIEW);
 746                         if (folder_view && gtk_widget_is_focus (folder_view)) {
 747                                 TnyFolderStore *folder_store
 748                                         = modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
 749                                 if (folder_store) {
 750                                         /* Only enable for folders, not accounts,
 751                                          * though the UI spec is not clear about that.
 752                                          * If we enable this for accounts then we must
 753                                          * add code to handle them in modest_ui_actions_on_details(). */
 754                                         if (!TNY_IS_FOLDER(folder_store)) {
 755                                                 dimmed = TRUE;
 756                                                 modest_dimming_rule_set_notification (rule, "");
 757                                         }
 758
 759                                         g_object_unref (folder_store);
 760                                 }
 761                         }
 762
 763                 }
 764
 765         /* msg view window dimming rules */
 766         } else {
 767
 768                 /* Check dimmed rule */
 769                 if (!dimmed) {
 770                         if (MODEST_IS_MSG_VIEW_WINDOW (win))
 771                                 dimmed = _msg_download_in_progress (MODEST_MSG_VIEW_WINDOW (win));
 772                         if (dimmed)
 773                                 modest_dimming_rule_set_notification (rule, "");
 774                 }
 775         }
 776
 777         return dimmed;
 778 }
 779
 780
 781 gboolean
 782 modest_ui_dimming_rules_on_mark_as_read_msg (ModestWindow *win, gpointer user_data)
 783 {
 784         ModestDimmingRule *rule = NULL;
 785         TnyHeaderFlags flags;
 786         const DimmedState *state = NULL;
 787         gboolean dimmed = FALSE;
 788
 789         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 790         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 791         rule = MODEST_DIMMING_RULE (user_data);
 792         state = modest_window_get_dimming_state (win);
 793
 794         flags = TNY_HEADER_FLAG_SEEN;
 795
 796         /* Check dimmed rule */
 797         if (!dimmed) {
 798                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 799         }
 800         if (!dimmed) {
 801                 dimmed = state->all_marked_as_seen;
 802                 if (dimmed)
 803                         modest_dimming_rule_set_notification (rule, "");
 804         }
 805
 806         return dimmed;
 807 }
 808
 809 gboolean
 810 modest_ui_dimming_rules_on_mark_as_unread_msg (ModestWindow *win, gpointer user_data)
 811 {
 812         ModestDimmingRule *rule = NULL;
 813         TnyHeaderFlags flags;
 814         const DimmedState *state = NULL;
 815         gboolean dimmed = FALSE;
 816
 817         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 818         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 819         rule = MODEST_DIMMING_RULE (user_data);
 820         state = modest_window_get_dimming_state (win);
 821
 822         flags = TNY_HEADER_FLAG_SEEN;
 823
 824         /* Check dimmed rule */
 825         if (!dimmed)
 826                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 827         if (!dimmed) {
 828                 dimmed = !state->any_marked_as_seen;
 829                 if (dimmed)
 830                         modest_dimming_rule_set_notification (rule, "");
 831         }
 832
 833         return dimmed;
 834 }
 835
 836 gboolean
 837 modest_ui_dimming_rules_on_move_to (ModestWindow *win, gpointer user_data)
 838 {
 839         ModestDimmingRule *rule = NULL;
 840         gboolean dimmed = FALSE;
 841
 842         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 843         rule = MODEST_DIMMING_RULE (user_data);
 844
 845         if (MODEST_IS_MAIN_WINDOW (win))
 846                 dimmed = modest_ui_dimming_rules_on_main_window_move_to (win, user_data);
 847         else if (MODEST_IS_MSG_VIEW_WINDOW (win))
 848                  dimmed = modest_ui_dimming_rules_on_view_window_move_to (win, user_data);
 849
 850         return dimmed;
 851 }
 852
 853
 854 gboolean
 855 modest_ui_dimming_rules_on_main_window_move_to (ModestWindow *win, gpointer user_data)
 856 {
 857         GtkWidget *folder_view = NULL;
 858         ModestDimmingRule *rule = NULL;
 859         guint n_messages = 0;
 860         const DimmedState *state = NULL;
 861         gboolean dimmed = FALSE;
 862
 863         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
 864         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 865         rule = MODEST_DIMMING_RULE (user_data);
 866         state = modest_window_get_dimming_state (win);
 867
 868         /* Get the folder view */
 869         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 870                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
 871
 872
 873         /* Check diming rules for folders transfer  */
 874         if (gtk_widget_is_focus (folder_view)) {
 875                 TnyFolderType types[5];
 876
 877                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 878                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 879                 types[2] = TNY_FOLDER_TYPE_SENT;
 880                 types[3] = TNY_FOLDER_TYPE_ROOT;
 881                 types[4] = TNY_FOLDER_TYPE_INBOX;
 882
 883                 /* Apply folder rules */
 884                 if (!dimmed) {
 885                         dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 886                         if (dimmed)
 887                                 modest_dimming_rule_set_notification (rule, _("emev_bd_unabletomove_items"));
 888                 }
 889                 if (!dimmed) {
 890                         dimmed = _selected_folder_is_any_of_type (win, types, 5);
 891                         if (dimmed)
 892                                 modest_dimming_rule_set_notification (rule, _("emev_bd_unabletomove_itemsr"));
 893                 }
 894         }
 895
 896         /* Check diming rules for messages transfer  */
 897         if (!dimmed) {
 898                 dimmed = state->already_opened_msg;
 899                 n_messages = state->n_selected;
 900                 if (dimmed) {
 901                         gchar *message = g_strdup_printf(_("emev_bd_unabletomove_items"), n_messages);
 902                         modest_dimming_rule_set_notification (rule, message);
 903                         g_free(message);
 904                 }
 905         }
 906         if (!dimmed) {
 907                 if (!gtk_widget_is_focus (folder_view))
 908                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 909
 910         }
 911
 912         return dimmed;
 913 }
 914
 915 gboolean
 916 modest_ui_dimming_rules_on_view_window_move_to (ModestWindow *win, gpointer user_data)
 917 {
 918         ModestDimmingRule *rule = NULL;
 919         gboolean dimmed = FALSE;
 920
 921         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 922         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 923         rule = MODEST_DIMMING_RULE (user_data);
 924
 925         /* Check dimmed rule */
 926         if (!dimmed) {
 927                 dimmed = _transfer_mode_enabled (win);
 928                 if (dimmed)
 929                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 930         }
 931         if (!dimmed) {
 932                 if (MODEST_IS_MSG_VIEW_WINDOW (win))
 933                         dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
 934                 if (dimmed)
 935                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_move_mail_attachment"));
 936         }
 937
 938         return dimmed;
 939 }
 940
 941 gboolean
 942 modest_ui_dimming_rules_on_find_msg (ModestWindow *win, gpointer user_data)
 943 {
 944         ModestDimmingRule *rule = NULL;
 945         gboolean dimmed = FALSE;
 946
 947         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
 948         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 949         rule = MODEST_DIMMING_RULE (user_data);
 950
 951         /* Check dimmed rule */
 952         if (!dimmed) {
 953                 dimmed = _transfer_mode_enabled (win);
 954                 if (dimmed)
 955                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 956         }
 957
 958         return dimmed;
 959 }
 960
 961 gboolean
 962 modest_ui_dimming_rules_on_paste_msgs (ModestWindow *win, gpointer user_data)
 963 {
 964         ModestDimmingRule *rule = NULL;
 965         TnyFolderType types[3];
 966         gboolean dimmed = FALSE;
 967
 968         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 969         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 970         rule = MODEST_DIMMING_RULE (user_data);
 971
 972         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 973         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 974         types[2] = TNY_FOLDER_TYPE_SENT;
 975
 976         /* Check dimmed rule */
 977         if (!dimmed) {
 978                 dimmed = _clipboard_is_empty (win);
 979                 if (dimmed)
 980                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ecoc_ib_edwin_nothing_to_paste"));
 981         }
 982         if (!dimmed) {
 983                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
 984                 if (dimmed)
 985                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ckct_ib_unable_to_paste_here"));
 986         }
 987         if (!dimmed) {
 988                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win));
 989                 if (dimmed) {
 990                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ckct_ib_unable_to_paste_here"));
 991                 }
 992         }
 993         if (!dimmed) {
 994                 dimmed = _selected_folder_is_same_as_source (win);
 995                 if (dimmed)
 996                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_copy_samefolder"));
 997         }
 998
 999         return dimmed;
1000 }
1001
1002
1003 gboolean
1004 modest_ui_dimming_rules_on_select_all (ModestWindow *win, gpointer user_data)
1005 {
1006         ModestDimmingRule *rule = NULL;
1007         gboolean dimmed = FALSE;
1008
1009         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1010         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1011         rule = MODEST_DIMMING_RULE (user_data);
1012
1013         /* Check dimmed rule */
1014         if (!dimmed) {
1015                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1016                 if (dimmed)
1017                         modest_dimming_rule_set_notification (rule, "");
1018         }
1019
1020         return dimmed;
1021 }
1022
1023 gboolean
1024 modest_ui_dimming_rules_on_view_attachments (ModestWindow *win, gpointer user_data)
1025 {
1026         ModestDimmingRule *rule = NULL;
1027         gboolean dimmed = FALSE;
1028
1029         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1030         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1031         rule = MODEST_DIMMING_RULE (user_data);
1032
1033         /* Check dimmed rule */
1034         if (!dimmed)
1035                 dimmed = _invalid_attach_selected (win, TRUE, TRUE, FALSE, rule);
1036
1037         if (!dimmed) {
1038                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1039                 if (dimmed) {
1040                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1041                 }
1042         }
1043
1044         return dimmed;
1045 }
1046
1047 gboolean
1048 modest_ui_dimming_rules_on_save_attachments (ModestWindow *win, gpointer user_data)
1049 {
1050         ModestDimmingRule *rule = NULL;
1051         gboolean dimmed = FALSE;
1052
1053         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1054         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1055         rule = MODEST_DIMMING_RULE (user_data);
1056
1057         /* Check dimmed rule */
1058         if (!dimmed)
1059                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, FALSE, rule);
1060
1061         if (!dimmed) {
1062                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1063                 if (dimmed) {
1064                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1065                 }
1066         }
1067
1068         return dimmed;
1069 }
1070
1071 gboolean
1072 modest_ui_dimming_rules_on_remove_attachments (ModestWindow *win, gpointer user_data)
1073 {
1074         ModestDimmingRule *rule = NULL;
1075         const DimmedState *state = NULL;
1076         gboolean dimmed = FALSE;
1077
1078         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1079         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1080         rule = MODEST_DIMMING_RULE (user_data);
1081         state = modest_window_get_dimming_state (win);
1082
1083         /* Check in main window if there's only one message selected */
1084         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1085                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW (win), TRUE, rule);
1086         }
1087
1088         /* Check in view window if there's any attachment selected */
1089         if (!dimmed && MODEST_IS_MSG_VIEW_WINDOW (win)) {
1090                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, TRUE, NULL);
1091                 if (dimmed)
1092                         modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1093         }
1094
1095         /* cannot purge in editable drafts nor pop folders */
1096         if (!dimmed) {
1097                 dimmed = _invalid_folder_for_purge (win, rule);
1098         }
1099
1100         /* Check if the selected message in main window has attachments */
1101         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1102                 dimmed = state->any_has_attachments;
1103                 if (dimmed)
1104                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1105         }
1106
1107         /* Check if all attachments are already purged */
1108         if (!dimmed) {
1109                 dimmed = _purged_attach_selected (win, TRUE, rule);
1110         }
1111
1112         /* Check if the message is already downloaded */
1113         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1114                 dimmed = !_msg_download_completed (MODEST_MAIN_WINDOW (win));
1115                 if (dimmed)
1116                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1117         }
1118
1119
1120         return dimmed;
1121 }
1122
1123 gboolean
1124 modest_ui_dimming_rules_on_undo (ModestWindow *win, gpointer user_data)
1125 {
1126         ModestDimmingRule *rule = NULL;
1127         gboolean dimmed = FALSE;
1128
1129         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1130         rule = MODEST_DIMMING_RULE (user_data);
1131
1132         /* Check dimmed rule */
1133         if (!dimmed) {
1134                 dimmed = _clipboard_is_empty (win);
1135                 if (dimmed)
1136                         modest_dimming_rule_set_notification (rule, "");
1137         }
1138
1139         return dimmed;
1140 }
1141
1142 gboolean
1143 modest_ui_dimming_rules_on_cut (ModestWindow *win, gpointer user_data)
1144 {
1145         ModestDimmingRule *rule = NULL;
1146         gboolean dimmed = FALSE;
1147
1148         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1149         rule = MODEST_DIMMING_RULE (user_data);
1150
1151         /* Check common dimming rules */
1152         if (!dimmed) {
1153                 dimmed = _invalid_clipboard_selected (win, rule);
1154         }
1155
1156         /* Check window specific dimming rules */
1157         if (MODEST_IS_MAIN_WINDOW (win)) {
1158                 if (!dimmed) {
1159                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1160                         if (dimmed)
1161                                 modest_dimming_rule_set_notification (rule, "");
1162                 }
1163                 if (!dimmed) {
1164                         dimmed = _selected_msg_sent_in_progress (win);
1165                         if (dimmed)
1166                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1167                 }
1168         }
1169
1170         return dimmed;
1171 }
1172
1173 gboolean
1174 modest_ui_dimming_rules_on_copy (ModestWindow *win, gpointer user_data)
1175 {
1176         ModestDimmingRule *rule = NULL;
1177         gboolean dimmed = FALSE;
1178
1179         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1180         rule = MODEST_DIMMING_RULE (user_data);
1181
1182         /* Check common dimming rules */
1183         if (!dimmed) {
1184                 dimmed = _invalid_clipboard_selected (win, rule);
1185         }
1186
1187         /* Check window specific dimming rules */
1188         if (MODEST_IS_MAIN_WINDOW (win)) {
1189                 if (!dimmed) {
1190                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1191                         if (dimmed)
1192                                 modest_dimming_rule_set_notification (rule, "");
1193                 }
1194                 if (!dimmed) {
1195                         dimmed = _selected_msg_sent_in_progress (win);
1196                         if (dimmed)
1197                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1198                 }
1199         }
1200
1201         return dimmed;
1202 }
1203
1204 gboolean
1205 modest_ui_dimming_rules_on_view_previous (ModestWindow *win, gpointer user_data)
1206 {
1207         ModestDimmingRule *rule = NULL;
1208         gboolean dimmed = FALSE;
1209
1210         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1211         rule = MODEST_DIMMING_RULE (user_data);
1212
1213         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1214
1215         /* Check dimmed rule */
1216         if (!dimmed) {
1217                 dimmed = _transfer_mode_enabled (win);
1218                 if (dimmed)
1219                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1220         }
1221         if (!dimmed) {
1222                 if (MODEST_IS_MSG_VIEW_WINDOW (win))
1223                         dimmed = modest_msg_view_window_first_message_selected (MODEST_MSG_VIEW_WINDOW(win));
1224                 modest_dimming_rule_set_notification (rule, NULL);
1225         }
1226
1227         return dimmed;
1228 }
1229
1230 gboolean
1231 modest_ui_dimming_rules_on_view_next (ModestWindow *win, gpointer user_data)
1232 {
1233         ModestDimmingRule *rule = NULL;
1234         gboolean dimmed = FALSE;
1235
1236         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1237         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1238         rule = MODEST_DIMMING_RULE (user_data);
1239
1240         /* Check dimmed rule */
1241         if (!dimmed) {
1242                 dimmed = _transfer_mode_enabled (win);
1243                 if (dimmed)
1244                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1245         }
1246         if (!dimmed) {
1247                 if (MODEST_IS_MSG_VIEW_WINDOW (win))
1248                         dimmed = modest_msg_view_window_last_message_selected (MODEST_MSG_VIEW_WINDOW (win));
1249                 modest_dimming_rule_set_notification (rule, NULL);
1250         }
1251
1252         return dimmed;
1253 }
1254
1255
1256 gboolean
1257 modest_ui_dimming_rules_on_tools_smtp_servers (ModestWindow *win, gpointer user_data)
1258 {
1259         const gboolean dimmed =
1260                 !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
1261                         TRUE);
1262
1263         return dimmed;
1264 }
1265
1266 gboolean
1267 modest_ui_dimming_rules_on_cancel_sending (ModestWindow *win, gpointer user_data)
1268 {
1269         ModestDimmingRule *rule = NULL;
1270         TnyFolderType types[1];
1271         guint n_messages = 0;
1272         const DimmedState *state = NULL;
1273         gboolean dimmed = FALSE;
1274
1275         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1276         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1277         rule = MODEST_DIMMING_RULE (user_data);
1278         state = modest_window_get_dimming_state (win);
1279
1280         types[0] = TNY_FOLDER_TYPE_OUTBOX;
1281
1282         /* Check dimmed rules */
1283         if (!dimmed) {
1284                 dimmed = state->already_opened_msg;
1285                 n_messages = state->n_selected;
1286                 if (dimmed)
1287                         modest_dimming_rule_set_notification (rule, _("mcen_ib_message_unableto_cancel_send"));
1288         }
1289         if (!dimmed) {
1290                 dimmed = !_selected_folder_is_any_of_type (win, types, 1);
1291                 if (dimmed)
1292                         modest_dimming_rule_set_notification (rule, "");
1293         }
1294         if (!dimmed) {
1295                 dimmed = !_sending_in_progress (win);
1296                 if (dimmed)
1297                         modest_dimming_rule_set_notification (rule, "");
1298         }
1299
1300         return dimmed;
1301 }
1302
1303 gboolean
1304 modest_ui_dimming_rules_on_send_receive (ModestWindow *win, gpointer user_data)
1305 {
1306         ModestDimmingRule *rule = NULL;
1307         gboolean dimmed = FALSE;
1308
1309         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1310         rule = MODEST_DIMMING_RULE (user_data);
1311
1312         /* Check dimmed rule */
1313         if (!dimmed) {
1314                 dimmed = !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
1315                                                           TRUE);
1316                 if (dimmed)
1317                         modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
1318         }
1319
1320         return dimmed;
1321 }
1322
1323 gboolean
1324 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
1325 {
1326         ModestDimmingRule *rule = NULL;
1327         gboolean dimmed = FALSE;
1328
1329         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1330         rule = MODEST_DIMMING_RULE (user_data);
1331
1332         /* Check dimmed rule */
1333         if (!dimmed) {
1334                 GtkClipboard *clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
1335                 gchar *selection = NULL;
1336                 selection = gtk_clipboard_wait_for_text (clipboard);
1337
1338                 dimmed = !((selection != NULL) && (modest_text_utils_validate_recipient (selection, NULL)));
1339         }
1340
1341         return dimmed;
1342 }
1343
1344 /* *********************** static utility functions ******************** */
1345
1346
1347 static gboolean
1348 _selected_folder_not_writeable (ModestMainWindow *win)
1349 {
1350         GtkWidget *folder_view = NULL;
1351         TnyFolderStore *parent_folder = NULL;
1352         ModestTnyFolderRules rules;
1353         gboolean result = FALSE;
1354
1355         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1356
1357         /* Get folder view */
1358         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1359                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1360         /* If no folder view, always dimmed */
1361         if (!folder_view)
1362                 return TRUE;
1363
1364         /* Get selected folder as parent of new folder to create */
1365         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1366         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1367                 if (parent_folder)
1368                         g_object_unref (parent_folder);
1369                 return TRUE;
1370         }
1371
1372         /* Check dimmed rule */
1373         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1374         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
1375
1376         /* free */
1377         g_object_unref (parent_folder);
1378
1379         return result;
1380 }
1381
1382 static gboolean
1383 _selected_folder_is_root_or_inbox (ModestMainWindow *win)
1384 {
1385         TnyFolderType types[2];
1386         gboolean result = FALSE;
1387
1388         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1389
1390         types[0] = TNY_FOLDER_TYPE_ROOT;
1391         types[1] = TNY_FOLDER_TYPE_INBOX;
1392
1393         /* Check folder type */
1394         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 2);
1395
1396         /* Check pop and MMC accounts */
1397         if (!result) {
1398                 result = _selected_folder_is_MMC_or_POP_root (win);
1399         }
1400
1401         return result;
1402 }
1403
1404
1405 static gboolean
1406 _selected_folder_is_root (ModestMainWindow *win)
1407 {
1408         TnyFolderType types[1];
1409         gboolean result = FALSE;
1410
1411         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1412
1413         /* All accounts are root items: */
1414         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1415                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1416         if (folder_view) {
1417                 gboolean is_account = FALSE;
1418                 TnyFolderStore *folder_store =
1419                         modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1420                 if (folder_store) {
1421                         is_account = TNY_IS_ACCOUNT (folder_store);
1422                         g_object_unref (folder_store);
1423                         folder_store = NULL;
1424                 }
1425
1426                 if (is_account)
1427                         return TRUE;
1428         }
1429
1430         /* Try something more precise: */
1431         types[0] = TNY_FOLDER_TYPE_ROOT;
1432
1433         /* Check folder type */
1434         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 1);
1435
1436         /* Check pop and MMC accounts */
1437         if (!result) {
1438                 result = _selected_folder_is_MMC_or_POP_root (win);
1439         }
1440
1441         return result;
1442 }
1443
1444 static gboolean
1445 _selected_folder_is_MMC_or_POP_root (ModestMainWindow *win)
1446 {
1447         GtkWidget *folder_view = NULL;
1448         TnyFolderStore *parent_folder = NULL;
1449         gboolean result = FALSE;
1450
1451         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1452                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1453         /* Get selected folder as parent of new folder to create */
1454         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1455         if (!parent_folder)
1456                 return TRUE;
1457
1458         if (TNY_IS_ACCOUNT (parent_folder)) {
1459                 /* If it's the local account then do not dim */
1460                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
1461                         result = FALSE;
1462                 } else {
1463                                 /* If it's the MMC root folder then dim it */
1464                         if (!strcmp (tny_account_get_id (TNY_ACCOUNT (parent_folder)), MODEST_MMC_ACCOUNT_ID)) {
1465                                         result = TRUE;
1466                         } else {
1467                                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
1468                                 /* If it's POP then dim */
1469                                 result = (modest_protocol_info_get_transport_store_protocol (proto_str) ==
1470                                                   MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
1471                         }
1472                 }
1473         }
1474         g_object_unref (parent_folder);
1475
1476         return result;
1477 }
1478
1479
1480 static gboolean
1481 _selected_folder_is_empty (ModestMainWindow *win)
1482 {
1483         GtkWidget *folder_view = NULL;
1484         TnyFolderStore *folder = NULL;
1485         gboolean result = FALSE;
1486
1487         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1488
1489         /* Get folder view */
1490         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1491                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1492         /* If no folder view, always dimmed */
1493         if (!folder_view)
1494                 return TRUE;
1495
1496         /* Get selected folder as parent of new folder to create */
1497         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1498         if (!(folder && TNY_IS_FOLDER(folder))) {
1499                 if (folder)
1500                         g_object_unref (folder);
1501                 return TRUE;
1502         }
1503
1504         /* Check folder type */
1505         result = tny_folder_get_all_count (TNY_FOLDER (folder)) == 0;
1506
1507         /* free */
1508         g_object_unref (folder);
1509
1510         return result;
1511 }
1512
1513 static gboolean
1514 _selected_folder_is_same_as_source (ModestWindow *win)
1515 {
1516         ModestEmailClipboard *clipboard = NULL;
1517         GtkWidget *folder_view = NULL;
1518         TnyFolderStore *folder = NULL;
1519         gboolean result = FALSE;
1520
1521         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1522
1523         /* Get folder view */
1524         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1525                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1526         if (!folder_view)
1527                 return FALSE;
1528
1529         /* Get selected folder as destination folder */
1530         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1531         if (!(folder && TNY_IS_FOLDER(folder))) {
1532                 result = FALSE;
1533                 goto frees;
1534         }
1535
1536         /* Check clipboard is cleared */
1537         clipboard = modest_runtime_get_email_clipboard ();
1538         if (modest_email_clipboard_cleared (clipboard)) {
1539                 result = FALSE;
1540                 goto frees;
1541         }
1542
1543         /* Check source folder */
1544         result = modest_email_clipboard_check_source_folder (clipboard,
1545                                                              (const TnyFolder *) folder);
1546
1547         /* Free */
1548  frees:
1549         g_object_unref (folder);
1550
1551         return result;
1552 }
1553
1554 static gboolean
1555 _selected_folder_is_any_of_type (ModestWindow *win,
1556                                  TnyFolderType types[],
1557                                  guint ntypes)
1558 {
1559         GtkWidget *folder_view = NULL;
1560         TnyFolderStore *folder = NULL;
1561         TnyFolderType folder_type;
1562         guint i=0;
1563         gboolean result = FALSE;
1564
1565         /*Get current folder */
1566         if (MODEST_IS_MAIN_WINDOW(win)) {
1567
1568                 /* Get folder view */
1569                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1570                                                                    MODEST_WIDGET_TYPE_FOLDER_VIEW);
1571                 /* If no folder view, always dimmed */
1572                 if (!folder_view)
1573                         return FALSE;
1574
1575                 /* Get selected folder as parent of new folder to create */
1576                 folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1577
1578                 if (!(folder && TNY_IS_FOLDER(folder))) {
1579                         if (folder)
1580                                 g_object_unref (folder);
1581                         return FALSE;
1582                 }
1583
1584                 /* Check folder type */
1585                 result = _folder_is_any_of_type (TNY_FOLDER(folder), types, ntypes);
1586         }
1587         else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
1588                 folder_type = modest_msg_view_window_get_folder_type (MODEST_MSG_VIEW_WINDOW (win));
1589                 for (i=0; i < ntypes; i++) {
1590                         result = result || folder_type == types[i];
1591                 }
1592         }
1593
1594
1595         /* free */
1596         g_object_unref (folder);
1597
1598         return result;
1599 }
1600
1601 static gboolean
1602 _folder_is_any_of_type (TnyFolder *folder,
1603                         TnyFolderType types[],
1604                         guint ntypes)
1605 {
1606         TnyFolderType folder_type;
1607         gboolean result = FALSE;
1608         guint i;
1609
1610         g_return_val_if_fail (TNY_IS_FOLDER(folder), FALSE);
1611
1612         /* Get folder type */
1613         folder_type = modest_tny_folder_guess_folder_type (folder);
1614
1615         /* Check foler type */
1616         for (i=0; i < ntypes; i++) {
1617                 result = result || folder_type == types[i];
1618         }
1619
1620         return result;
1621 }
1622
1623 static gboolean
1624 _selected_folder_is_snd_level (ModestMainWindow *win)
1625 {
1626         GtkWidget *folder_view = NULL;
1627         GtkTreeSelection *sel = NULL;
1628         GtkTreeModel *model = NULL;
1629         GtkTreePath *path = NULL;
1630         GtkTreeIter iter;
1631         TnyFolderStore *folder = NULL;
1632         gboolean result = FALSE;
1633
1634         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
1635
1636         /*Get curent folder */
1637         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1638                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1639         /* If no folder view, always dimmed */
1640         if (!folder_view)
1641                 goto frees;
1642
1643         /* Get selected folder as parent of new folder to create */
1644         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1645         if (!(folder && TNY_IS_FOLDER(folder))) {
1646                 goto frees;
1647         }
1648
1649         /* Check folder level */
1650         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW(folder_view));
1651         if (!gtk_tree_selection_get_selected (sel, &model, &iter))
1652                 goto frees;
1653         path = gtk_tree_model_get_path (model, &iter);
1654         result = gtk_tree_path_get_depth (path) > 2;
1655
1656  frees:
1657         if (folder != NULL)
1658                 g_object_unref (folder);
1659         if (path != NULL)
1660                 gtk_tree_path_free (path);
1661
1662         return result;
1663
1664 }
1665
1666 static gboolean
1667 _clipboard_is_empty (ModestWindow *win)
1668 {
1669         gboolean result = FALSE;
1670
1671         if (MODEST_IS_MAIN_WINDOW (win)) {
1672                 ModestEmailClipboard *clipboard = NULL;
1673                 clipboard = modest_runtime_get_email_clipboard ();
1674                 if (modest_email_clipboard_cleared (clipboard))
1675                  result = TRUE;
1676         }
1677
1678         return result;
1679 }
1680
1681 static gboolean
1682 _invalid_clipboard_selected (ModestWindow *win,
1683                        ModestDimmingRule *rule)
1684 {
1685         const DimmedState *state = NULL;
1686         gboolean result = FALSE;
1687
1688         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1689         state = modest_window_get_dimming_state (win);
1690
1691         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1692                 GtkClipboard *clipboard = NULL;
1693                 gchar *selection = NULL;
1694                 GtkWidget *focused = NULL;
1695
1696                 /* Get clipboard selection*/
1697                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
1698                 selection = gtk_clipboard_wait_for_text (clipboard);
1699
1700                 /* Get focuesed widget */
1701                 focused = gtk_window_get_focus (GTK_WINDOW (win));
1702
1703                 /* Check dimming */
1704                 result = ((selection == NULL) ||
1705                           (MODEST_IS_ATTACHMENTS_VIEW (focused)));
1706
1707                 if (result)
1708                         modest_dimming_rule_set_notification (rule, "");
1709
1710                 if (selection != NULL)
1711                         g_free(selection);
1712         }
1713         else if (MODEST_IS_MAIN_WINDOW (win)) {
1714                 /* Check dimming */
1715                 result = state->n_selected == 0;
1716                 if (result)
1717                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
1718         }
1719
1720         return result;
1721 }
1722
1723
1724 static gboolean
1725 _invalid_attach_selected (ModestWindow *win,
1726                           gboolean unique,
1727                           gboolean for_view,
1728                           gboolean for_remove,
1729                           ModestDimmingRule *rule)
1730 {
1731         GList *attachments, *node;
1732         gint n_selected;
1733         TnyHeaderFlags flags;
1734         gboolean nested_attachments = FALSE;
1735         gboolean selected_messages = FALSE;
1736         const DimmedState *state = NULL;
1737         gboolean result = FALSE;
1738
1739         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1740         state = modest_window_get_dimming_state (win);
1741
1742         if (MODEST_IS_MAIN_WINDOW (win)) {
1743                 flags = TNY_HEADER_FLAG_ATTACHMENTS;
1744                 if (!result)
1745                         result = !state->any_has_attachments;
1746         }
1747         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1748
1749                 /* Get selected atachments */
1750                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1751                 n_selected = g_list_length (attachments);
1752
1753                 /* Check unique */
1754                 if (!result) {
1755                         if (unique)
1756                                 result = n_selected != 1;
1757                         else
1758
1759                                 result = n_selected < 1;
1760                 }
1761
1762                 /* Check attached type (view operation not required) */
1763                 if (!result && !for_view)  {
1764                         for (node = attachments; node != NULL && !result; node = g_list_next (node)) {
1765                                 TnyMimePart *mime_part = TNY_MIME_PART (node->data);
1766                                 TnyList *nested_list = tny_simple_list_new ();
1767                                 if (!for_remove && TNY_IS_MSG (mime_part)) {
1768                                         selected_messages = TRUE;
1769                                         result = TRUE;
1770                                 }
1771                                 tny_mime_part_get_parts (mime_part, nested_list);
1772                                 if (!for_remove && tny_list_get_length (nested_list) > 0) {
1773                                         nested_attachments = TRUE;
1774                                         result = TRUE;
1775                                 }
1776                                 g_object_unref (nested_list);
1777                         }
1778                 }
1779
1780                 /* Set notifications */
1781                 if (result && rule != NULL) {
1782                         if (selected_messages) {
1783                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_save_attach_mail"));
1784                         } else if (nested_attachments) {
1785                                 modest_dimming_rule_set_notification (rule, _("FIXME:unable to save attachments with nested elements"));
1786                         } else if (n_selected == 0) {
1787                                 modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1788                         } else if (unique) {
1789                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_display_more"));
1790                         }
1791                 }
1792
1793                 /* Free */
1794                 g_list_free (attachments);
1795         }
1796
1797         return result;
1798 }
1799
1800 static gboolean
1801 _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule)
1802 {
1803         GList *attachments = NULL, *node;
1804         gint purged = 0;
1805         gint n_attachments = 0;
1806         gboolean result = FALSE;
1807
1808         /* This should check if _all_ the attachments are already purged. If only some
1809          * of them are purged, then it does not cause dim as there's a confirmation dialog
1810          * for removing only local attachments */
1811
1812         /* Get selected atachments */
1813         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1814                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1815         } else if (MODEST_IS_MAIN_WINDOW (win)) {
1816                 /* If we're in main window, we won't know if there are already purged attachments */
1817                 return FALSE;
1818         }
1819
1820         if (attachments == NULL)
1821                 return FALSE;
1822
1823         for (node = attachments; node != NULL; node = g_list_next (node)) {
1824                 TnyMimePart *mime_part = TNY_MIME_PART (node->data);
1825                 if (tny_mime_part_is_purged (mime_part)) {
1826                         purged++;
1827                 }
1828                 n_attachments++;
1829         }
1830
1831         /* Free */
1832         g_list_free (attachments);
1833
1834         if (all)
1835                 result = (purged == n_attachments);
1836         else
1837                 result = (purged > 0);
1838
1839         if (result && (rule != NULL))
1840                 modest_dimming_rule_set_notification (rule, _("mail_ib_attachment_already_purged"));
1841
1842         return result;
1843 }
1844
1845 static gboolean
1846 _invalid_msg_selected (ModestMainWindow *win,
1847                        gboolean unique,
1848                        ModestDimmingRule *rule)
1849 {
1850         GtkWidget *folder_view = NULL;
1851         const DimmedState *state = NULL;
1852         gboolean result = FALSE;
1853
1854         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1855         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (rule), FALSE);
1856         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
1857
1858         /* Get folder view to check focus */
1859         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
1860                                                            MODEST_WIDGET_TYPE_FOLDER_VIEW);
1861
1862         /* Check dimmed rule (TODO: check focus on widgets */
1863         if (!result) {
1864                 result = ((state->n_selected == 0 ) ||
1865                           (gtk_widget_is_focus (folder_view)));
1866                 if (result)
1867                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
1868         }
1869         if (!result && unique) {
1870                 result = state->n_selected > 1;
1871                 if (result)
1872                         modest_dimming_rule_set_notification (rule, _("mcen_ib_select_one_message"));
1873         }
1874
1875         return result;
1876 }
1877
1878
1879 static gboolean
1880 _msg_download_in_progress (ModestMsgViewWindow *win)
1881 {
1882         gboolean result = FALSE;
1883
1884         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW (win), FALSE);
1885
1886         result = modest_msg_view_window_toolbar_on_transfer_mode (win);
1887
1888         return result;
1889 }
1890
1891 static gboolean
1892 _msg_download_completed (ModestMainWindow *win)
1893 {
1894         const DimmedState *state = modest_window_get_dimming_state (MODEST_WINDOW(win));
1895         return state->any_marked_as_cached;
1896 }
1897
1898 static void
1899 fill_list_of_caches (gpointer key, gpointer value, gpointer userdata)
1900 {
1901         GSList **send_queues = (GSList **) userdata;
1902         *send_queues = g_slist_prepend (*send_queues, value);
1903 }
1904
1905 static gboolean
1906 _selected_msg_sent_in_progress (ModestWindow *win)
1907 {
1908         const DimmedState *state = modest_window_get_dimming_state (win);
1909         return state->sent_in_progress;
1910 }
1911
1912
1913 static gboolean
1914 _sending_in_progress (ModestWindow *win)
1915 {
1916         gboolean result = FALSE;
1917
1918         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW (win), FALSE);
1919
1920         /* Check if send operation is in progress */
1921         result = modest_main_window_send_receive_in_progress (MODEST_MAIN_WINDOW (win));
1922
1923         return result;
1924 }
1925
1926 static gboolean
1927 _invalid_folder_for_purge (ModestWindow *win,
1928                            ModestDimmingRule *rule)
1929 {
1930         TnyMsg *msg = NULL;
1931         TnyFolder *folder = NULL;
1932         TnyAccount *account = NULL;
1933         gboolean result = FALSE;
1934
1935         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1936
1937                 /* Get folder and account of message */
1938                 msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
1939                 g_return_val_if_fail(msg != NULL, TRUE);
1940                 folder = tny_msg_get_folder (msg);
1941                 if (folder == NULL) {
1942                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1943                         goto frees;
1944                 }
1945                 g_object_unref (msg);
1946         } else if (MODEST_IS_MAIN_WINDOW (win)) {
1947                 GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
1948                                                                               MODEST_WIDGET_TYPE_FOLDER_VIEW);
1949                 if (!folder_view)
1950                         return FALSE;
1951                 folder = TNY_FOLDER (modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view)));
1952                 if (folder == NULL || ! TNY_IS_FOLDER (folder))
1953                         goto frees;
1954         } else {
1955                 g_return_val_if_reached (FALSE);
1956         }
1957         account = modest_tny_folder_get_account (folder);
1958         if (account == NULL) goto frees;
1959
1960         /* Check account */
1961         if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (account))) {
1962                 TnyFolderType types[2];
1963                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
1964                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
1965
1966                 if (_selected_folder_is_any_of_type (win, types, 2)) {
1967                         result = TRUE;
1968                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_editable_msg"));
1969                 } else {
1970                         /* We're currently disabling purge in any local store */
1971                         result = TRUE;
1972                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1973                 }
1974         } else {
1975                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (account));
1976                 /* If it's POP then dim */
1977                 if (modest_protocol_info_get_transport_store_protocol (proto_str) ==
1978                     MODEST_PROTOCOL_STORE_POP) {
1979                         GList *attachments = NULL;
1980                         gint n_selected = 0;
1981                         result = TRUE;
1982
1983                         /* TODO: This check is here to prevent a gwarning, but this looks like a logic error.
1984                          * murrayc */
1985                         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1986                                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
1987                                 n_selected = g_list_length (attachments);
1988                                 g_list_free (attachments);
1989                         }
1990
1991                         modest_dimming_rule_set_notification (rule,
1992                                                               ngettext ("mail_ib_unable_to_pure_attach_pop_mail_singular",
1993                                                                         "mail_ib_unable_to_pure_attach_pop_mail_plural",
1994                                                                         n_selected));
1995                 }
1996         }
1997
1998 frees:
1999         if (folder != NULL)
2000                 g_object_unref (folder);
2001         if (account != NULL)
2002                 g_object_unref (account);
2003
2004         return result;
2005 }
2006
2007 static gboolean
2008 _transfer_mode_enabled (ModestWindow *win)
2009 {
2010         gboolean result = FALSE;
2011
2012         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW (win), FALSE);
2013
2014         /* Check dimming */
2015         result = modest_msg_view_window_transfer_mode_enabled (MODEST_MSG_VIEW_WINDOW (win));
2016
2017         return result;
2018 }
2019