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

   1 /* Copyright (c) 2006, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #ifdef HAVE_CONFIG_H
  31 #include <config.h>
  32 #endif /*HAVE_CONFIG_H*/
  33
  34 #include <string.h>
  35 #include "modest-ui-dimming-rules.h"
  36 #include "modest-ui-actions.h"
  37 #include "modest-dimming-rule.h"
  38 #include "modest-debug.h"
  39 #include "modest-tny-folder.h"
  40 #include "modest-tny-account.h"
  41 #include "modest-tny-mime-part.h"
  42 #include "modest-text-utils.h"
  43 #include <widgets/modest-attachments-view.h>
  44 #include <modest-runtime.h>
  45 #include <tny-simple-list.h>
  46 #include <widgets/modest-recpt-editor.h>
  47 #include <gtkhtml/gtkhtml.h>
  48
  49
  50 static gboolean _folder_is_any_of_type (TnyFolder *folder, TnyFolderType types[], guint ntypes);
  51 static gboolean _invalid_msg_selected (ModestMainWindow *win, gboolean unique, ModestDimmingRule *rule);
  52 static gboolean _invalid_attach_selected (ModestWindow *win,
  53                                           gboolean unique, gboolean for_view, gboolean for_remove,
  54                                           ModestDimmingRule *rule);
  55 static gboolean _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule);
  56 static gboolean _clipboard_is_empty (ModestWindow *win);
  57 static gboolean _invalid_clipboard_selected (ModestWindow *win, ModestDimmingRule *rule);
  58 static gboolean _selected_folder_not_writeable (ModestMainWindow *win, gboolean for_paste);
  59 static gboolean _selected_folder_not_moveable (ModestMainWindow *win);
  60 static gboolean _selected_folder_not_renameable (ModestMainWindow *win);
  61 static gboolean _selected_folder_not_deletable (ModestMainWindow *win);
  62 static gboolean _selected_folder_is_any_of_type (ModestWindow *win, TnyFolderType types[], guint ntypes);
  63 static gboolean _selected_folder_is_root_or_inbox (ModestMainWindow *win);
  64 static gboolean _selected_folder_is_MMC_or_POP_root (ModestMainWindow *win);
  65 static gboolean _selected_folder_is_root (ModestMainWindow *win);
  66 static gboolean _header_view_is_all_selected (ModestMainWindow *win);
  67 static gboolean _selected_folder_is_empty (ModestMainWindow *win);
  68 static gboolean _folder_view_has_focus (ModestWindow *win);
  69 static gboolean _selected_folder_is_same_as_source (ModestWindow *win);
  70 static gboolean _msg_download_in_progress (ModestWindow *win);
  71 static gboolean _msg_download_completed (ModestMainWindow *win);
  72 static gboolean _selected_msg_sent_in_progress (ModestWindow *win);
  73 static gboolean _sending_in_progress (ModestWindow *win);
  74 static gboolean _invalid_folder_for_purge (ModestWindow *win, ModestDimmingRule *rule);
  75 static gboolean _transfer_mode_enabled (ModestWindow *win);
  76 static gboolean _selected_folder_has_subfolder_with_same_name (ModestWindow *win);
  77 static void fill_list_of_caches (gpointer key, gpointer value, gpointer userdata);
  78
  79
  80 static DimmedState *
  81 _define_main_window_dimming_state (ModestMainWindow *window)
  82 {
  83         DimmedState *state = NULL;
  84         GtkWidget *focused_widget = NULL;
  85         GtkWidget *header_view = NULL;
  86         GtkTreeModel *model = NULL;
  87         TnyList *selected_headers = NULL;
  88         TnyIterator *iter = NULL;
  89         TnyHeader *header = NULL;
  90         ModestCacheMgr *cache_mgr = NULL;
  91         GHashTable *send_queue_cache = NULL;
  92         ModestTnySendQueue *send_queue = NULL;
  93         GSList *send_queues = NULL, *node = NULL;
  94         ModestWindowMgr *mgr = NULL;
  95         gboolean found = FALSE;
  96         gchar *msg_uid = NULL;
  97         TnyHeaderFlags flags;
  98         gboolean all_deleted = TRUE;
  99         gboolean all_seen = TRUE;
 100         gboolean all_cached = TRUE;
 101         gboolean all_has_attach = TRUE;
 102         TnyFolder *folder = NULL;
 103
 104         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(window), NULL);
 105
 106         /* Init state */
 107         state = g_slice_new0 (DimmedState);
 108         state->n_selected = 0;
 109         state->already_opened_msg = 0;
 110         state->any_marked_as_deleted = FALSE;
 111         state->all_marked_as_deleted = FALSE;
 112         state->any_marked_as_seen = FALSE;
 113         state->all_marked_as_seen = FALSE;
 114         state->any_marked_as_cached = FALSE;
 115         state->all_marked_as_cached = FALSE;
 116         state->any_has_attachments = FALSE;
 117         state->all_has_attachments = FALSE;
 118         state->sent_in_progress = FALSE;
 119         state->all_selected = FALSE;
 120
 121         /* Get focused widget */
 122         focused_widget = gtk_window_get_focus (GTK_WINDOW (window));
 123         if (MODEST_IS_FOLDER_VIEW (focused_widget)) {
 124                 state->n_selected++;
 125                 return state;
 126         } else if (MODEST_IS_HEADER_VIEW (focused_widget)) {
 127                 header_view = focused_widget;
 128         } else {
 129                 header_view = modest_main_window_get_child_widget (window, MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
 130         }
 131
 132         /* Get header view and selected headers */
 133         selected_headers = modest_header_view_get_selected_headers (MODEST_HEADER_VIEW(header_view));
 134         if (!selected_headers)
 135                 return state;
 136
 137         /* Examine selected headers */
 138         iter = tny_list_create_iterator (selected_headers);
 139         while (!tny_iterator_is_done (iter)) {
 140                 header = TNY_HEADER (tny_iterator_get_current (iter));
 141                 flags = tny_header_get_flags (header);
 142
 143                 /* No selected */
 144                 state->n_selected++;
 145
 146                 /* Already opened */
 147                 mgr = modest_runtime_get_window_mgr ();
 148                 if (modest_window_mgr_find_registered_header (mgr, header, NULL))
 149                         state->already_opened_msg++;
 150
 151
 152                 /* Mark as deleted */
 153                 all_deleted = all_deleted && (flags & TNY_HEADER_FLAG_DELETED);
 154                 state->all_marked_as_deleted = all_deleted;
 155                 if (!state->any_marked_as_deleted)
 156                         state->any_marked_as_deleted = flags & TNY_HEADER_FLAG_DELETED;
 157
 158                 /* Mark as seen */
 159                 all_seen = all_seen && (flags & TNY_HEADER_FLAG_SEEN);
 160                 state->all_marked_as_seen = all_seen;
 161                 if (!state->any_marked_as_seen)
 162                         state->any_marked_as_seen = flags & TNY_HEADER_FLAG_SEEN;
 163
 164                 /* Mark as cached */
 165                 all_cached = all_cached && (flags & TNY_HEADER_FLAG_CACHED);
 166                 state->all_marked_as_cached = all_cached;
 167                 if (!state->any_marked_as_cached)
 168                         state->any_marked_as_cached = flags & TNY_HEADER_FLAG_CACHED;
 169
 170                 /* Mark has_attachments */
 171                 all_has_attach = all_has_attach && (flags & TNY_HEADER_FLAG_ATTACHMENTS);
 172                 state->all_has_attachments = all_has_attach;
 173                 if (!state->any_has_attachments)
 174                         state->any_has_attachments = flags & TNY_HEADER_FLAG_ATTACHMENTS;
 175
 176                 /* sent in progress */
 177                 folder = tny_header_get_folder (header);
 178                 if (folder) {
 179                         if (modest_tny_folder_guess_folder_type (folder) == TNY_FOLDER_TYPE_OUTBOX) {
 180                                 msg_uid = modest_tny_send_queue_get_msg_id (header);
 181                                 if (!state->sent_in_progress) {
 182                                         cache_mgr = modest_runtime_get_cache_mgr ();
 183                                         send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
 184                                                                                        MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
 185
 186                                         g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
 187
 188                                         for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
 189                                                 send_queue = MODEST_TNY_SEND_QUEUE (node->data);
 190
 191                                                 /* Check if msg uid is being processed inside send queue */
 192                                                 found = modest_tny_send_queue_msg_is_being_sent (send_queue, msg_uid);
 193                                         }
 194                                         state->sent_in_progress = found;
 195                                 }
 196                         }
 197                         g_object_unref (folder);
 198                 }
 199                 tny_iterator_next (iter);
 200                 g_object_unref (header);
 201         }
 202
 203         /* check if all the headers are selected or not */
 204         model = gtk_tree_view_get_model(GTK_TREE_VIEW(header_view));
 205         if (model != NULL){
 206                 gint count;
 207                 count = gtk_tree_model_iter_n_children(model, NULL);
 208                 if(state->n_selected == count)
 209                         state->all_selected = TRUE;
 210         }
 211
 212         /* Free */
 213         g_free(msg_uid);
 214         g_object_unref(selected_headers);
 215         g_object_unref(iter);
 216         g_slist_free (send_queues);
 217
 218         return state;
 219 }
 220
 221 static DimmedState *
 222 _define_msg_view_window_dimming_state (ModestMsgViewWindow *window)
 223 {
 224         DimmedState *state = NULL;
 225         TnyHeader *header = NULL;
 226         ModestCacheMgr *cache_mgr = NULL;
 227         GHashTable *send_queue_cache = NULL;
 228         ModestTnySendQueue *send_queue = NULL;
 229         GSList *send_queues = NULL, *node = NULL;
 230         gboolean found = FALSE;
 231         gchar *msg_uid = NULL;
 232         TnyHeaderFlags flags;
 233         gboolean all_deleted = TRUE;
 234         gboolean all_seen = TRUE;
 235         gboolean all_cached = TRUE;
 236         gboolean all_has_attach = TRUE;
 237
 238         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(window), NULL);
 239
 240         /* Init state */
 241         state = g_slice_new0 (DimmedState);
 242         state->n_selected = 0;
 243         state->already_opened_msg = 0;
 244         state->any_marked_as_deleted = FALSE;
 245         state->all_marked_as_deleted = FALSE;
 246         state->any_marked_as_seen = FALSE;
 247         state->all_marked_as_seen = FALSE;
 248         state->any_marked_as_cached = FALSE;
 249         state->all_marked_as_cached = FALSE;
 250         state->any_has_attachments = FALSE;
 251         state->all_has_attachments = FALSE;
 252         state->sent_in_progress = FALSE;
 253
 254         header = modest_msg_view_window_get_header (MODEST_MSG_VIEW_WINDOW(window));
 255         if (header == NULL)
 256                 return state;
 257         g_return_val_if_fail (TNY_IS_HEADER(header), state);
 258         flags = tny_header_get_flags (header);
 259
 260         /* Selected */
 261         state->n_selected++;
 262
 263         /* Mark as deleted */
 264         all_deleted = all_deleted && (flags & TNY_HEADER_FLAG_DELETED);
 265         state->all_marked_as_deleted = all_deleted;
 266         if (!state->any_marked_as_deleted)
 267                 state->any_marked_as_deleted = flags & TNY_HEADER_FLAG_DELETED;
 268
 269         /* Mark as seen */
 270         all_seen = all_seen && (flags & TNY_HEADER_FLAG_SEEN);
 271         state->all_marked_as_seen = all_seen;
 272         if (!state->any_marked_as_seen)
 273                 state->any_marked_as_seen = flags & TNY_HEADER_FLAG_SEEN;
 274
 275         /* Mark as cached */
 276         all_cached = all_cached && (flags & TNY_HEADER_FLAG_CACHED);
 277         state->all_marked_as_cached = all_cached;
 278         if (!state->any_marked_as_cached)
 279                 state->any_marked_as_cached = flags & TNY_HEADER_FLAG_CACHED;
 280
 281         /* Mark has_attachments */
 282         all_has_attach = all_has_attach && (flags & TNY_HEADER_FLAG_ATTACHMENTS);
 283         state->all_has_attachments = all_has_attach;
 284         if (!state->any_has_attachments)
 285                 state->any_has_attachments = (flags & TNY_HEADER_FLAG_ATTACHMENTS)?1:0;
 286
 287         /* sent in progress */
 288         msg_uid = modest_tny_send_queue_get_msg_id (header);
 289         if (!state->sent_in_progress) {
 290                 cache_mgr = modest_runtime_get_cache_mgr ();
 291                 send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
 292                                                                MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
 293
 294                 g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
 295
 296                 for (node = send_queues; node != NULL && !found; node = g_slist_next (node)) {
 297                         send_queue = MODEST_TNY_SEND_QUEUE (node->data);
 298
 299                         /* Check if msg uid is being processed inside send queue */
 300                         found = modest_tny_send_queue_msg_is_being_sent (send_queue, msg_uid);
 301                 }
 302                 state->sent_in_progress = found;
 303         }
 304
 305         /* Free */
 306         g_free(msg_uid);
 307         g_object_unref (header);
 308         g_slist_free (send_queues);
 309
 310         return state;
 311 }
 312
 313
 314 DimmedState *
 315 modest_ui_dimming_rules_define_dimming_state (ModestWindow *window)
 316 {
 317         DimmedState *state = NULL;
 318
 319         g_return_val_if_fail (MODEST_IS_WINDOW(window), NULL);
 320
 321         if (MODEST_IS_MAIN_WINDOW (window))
 322                 state = _define_main_window_dimming_state (MODEST_MAIN_WINDOW(window));
 323         else if (MODEST_IS_MSG_VIEW_WINDOW (window)) {
 324                 state = _define_msg_view_window_dimming_state (MODEST_MSG_VIEW_WINDOW(window));
 325         }
 326
 327         return state;
 328 }
 329
 330 gboolean
 331 modest_ui_dimming_rules_on_new_msg (ModestWindow *win, gpointer user_data)
 332 {
 333         ModestDimmingRule *rule = NULL;
 334         gboolean dimmed = FALSE;
 335
 336         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 337         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 338         rule = MODEST_DIMMING_RULE (user_data);
 339
 340         /* Check dimmed rule */
 341         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
 342                 if (!dimmed) {
 343                         dimmed = _msg_download_in_progress (win);
 344                         if (dimmed)
 345                                 modest_dimming_rule_set_notification (rule, "");
 346                 }
 347         } else if (MODEST_IS_MAIN_WINDOW(win)) {
 348                 if (!dimmed) {
 349                         dimmed = !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
 350                                                                   TRUE);
 351                         if (dimmed)
 352                                 modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
 353                 }
 354         }
 355
 356         return dimmed;
 357 }
 358
 359 gboolean
 360 modest_ui_dimming_rules_on_new_folder (ModestWindow *win, gpointer user_data)
 361 {
 362         ModestDimmingRule *rule = NULL;
 363         GtkWidget *folder_view = NULL;
 364         TnyFolderStore *parent_folder = NULL;
 365         gboolean dimmed = FALSE;
 366
 367         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 368         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 369         rule = MODEST_DIMMING_RULE (user_data);
 370
 371         if (!dimmed) {
 372                 dimmed = _transfer_mode_enabled (win);
 373                 if (dimmed) {
 374                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 375                         return dimmed;
 376                 }
 377         }
 378
 379         /* Get selected folder as parent of new folder to create */
 380         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 381                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 382         if (!folder_view) /* folder view may not have been created yet */
 383                 return TRUE;
 384
 385         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
 386         if (!parent_folder)
 387                 return TRUE;
 388
 389         if (TNY_IS_ACCOUNT (parent_folder)) {
 390                 /* If it's the local account then do not dim */
 391                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
 392                         dimmed = FALSE;
 393                 } else {
 394                         const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
 395                         if (proto_str != NULL) {
 396                                 /* If it's POP then dim */
 397                                 dimmed = (modest_protocol_info_get_transport_store_protocol (proto_str) ==
 398                                           MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
 399                                 if (dimmed)
 400                                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 401                         }
 402                 }
 403         } else {
 404                 /* TODO: the specs say that only one level of subfolder is allowed, is this true ? */
 405
 406                 TnyFolderType types[3];
 407
 408                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 409                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 410                 types[2] = TNY_FOLDER_TYPE_SENT;
 411
 412                 /* Apply folder rules */
 413                 if (!dimmed) {
 414                         dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win), FALSE);
 415                         if (dimmed)
 416                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 417                 }
 418                 if (!dimmed) {
 419                         dimmed = _selected_folder_is_any_of_type (win, types, 3);
 420                         if (dimmed)
 421                                 modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_create_error"));
 422                 }
 423         }
 424
 425         /* if not the folder is selected then dim */
 426         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 427                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 428         if (folder_view && !gtk_widget_is_focus (folder_view))
 429                 dimmed = TRUE;
 430
 431         g_object_unref (parent_folder);
 432
 433         return dimmed;
 434 }
 435
 436 gboolean
 437 modest_ui_dimming_rules_on_delete (ModestWindow *win, gpointer user_data)
 438 {
 439         ModestDimmingRule *rule = NULL;
 440         GtkWidget *folder_view = NULL;
 441         GtkWidget *header_view = NULL;
 442         gboolean dimmed = FALSE;
 443
 444         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 445         rule = MODEST_DIMMING_RULE (user_data);
 446
 447         if (MODEST_IS_MAIN_WINDOW (win)) {
 448                 /* Get the folder view */
 449                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 450                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 451
 452                 /* Get header view */
 453                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 454                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
 455
 456                 if (header_view && gtk_widget_is_focus (header_view))
 457                         dimmed = modest_ui_dimming_rules_on_delete_msg (win, rule);
 458
 459                 if (folder_view && gtk_widget_is_focus (folder_view))
 460                         dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 461
 462                 if (header_view && folder_view &&
 463                     !gtk_widget_is_focus (header_view) &&
 464                     !gtk_widget_is_focus (folder_view)) {
 465                         dimmed = TRUE;
 466                         modest_dimming_rule_set_notification (rule, dgettext("hildon-common-strings", "ckct_ib_nothing_to_delete"));
 467                 }
 468         } else {
 469                 dimmed = modest_ui_dimming_rules_on_delete_folder (win, rule);
 470         }
 471
 472         return dimmed;
 473 }
 474
 475
 476
 477 gboolean
 478 modest_ui_dimming_rules_on_delete_folder (ModestWindow *win, gpointer user_data)
 479 {
 480         ModestDimmingRule *rule = NULL;
 481         TnyFolderType types[6];
 482         gboolean dimmed = FALSE;
 483
 484         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 485         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 486         rule = MODEST_DIMMING_RULE (user_data);
 487
 488         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 489         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 490         types[2] = TNY_FOLDER_TYPE_SENT;
 491         types[3] = TNY_FOLDER_TYPE_INBOX;
 492         types[4] = TNY_FOLDER_TYPE_ROOT;
 493         types[5] = TNY_FOLDER_TYPE_ARCHIVE;
 494
 495
 496         /* Check dimmed rule */
 497         if (!dimmed) {
 498                 dimmed = _selected_folder_not_deletable (MODEST_MAIN_WINDOW(win));
 499                 if (dimmed)
 500                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 501         }
 502         if (!dimmed) {
 503                 dimmed = _selected_folder_is_any_of_type (win, types, 6);
 504                 if (dimmed)
 505                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 506         }
 507         if (!dimmed) {
 508                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 509                 if (dimmed)
 510                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 511         }
 512         if (!dimmed) {
 513                 dimmed = _selected_folder_is_MMC_or_POP_root (MODEST_MAIN_WINDOW(win));
 514                 if (dimmed)
 515                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_delete_error"));
 516         }
 517         if (!dimmed) {
 518                 dimmed = _transfer_mode_enabled (win);
 519                 if (dimmed)
 520                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 521         }
 522
 523         return dimmed;
 524 }
 525
 526 gboolean
 527 modest_ui_dimming_rules_on_sort (ModestWindow *win, gpointer user_data)
 528 {
 529         ModestDimmingRule *rule = NULL;
 530         gboolean dimmed = FALSE;
 531
 532         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 533         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 534         rule = MODEST_DIMMING_RULE (user_data);
 535
 536         /* Check dimmed rule */
 537         if (!dimmed) {
 538                 dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
 539                 modest_dimming_rule_set_notification (rule, _CS("ckdg_ib_nothing_to_sort"));
 540         }
 541
 542         if (!dimmed) {
 543                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 544                 modest_dimming_rule_set_notification (rule, _CS("ckdg_ib_nothing_to_sort"));
 545         }
 546
 547         return dimmed;
 548
 549 }
 550
 551 gboolean
 552 modest_ui_dimming_rules_on_rename_folder (ModestWindow *win, gpointer user_data)
 553 {
 554         ModestDimmingRule *rule = NULL;
 555         TnyFolderType types[4];
 556         gboolean dimmed = FALSE;
 557
 558         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 559         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 560         rule = MODEST_DIMMING_RULE (user_data);
 561
 562         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 563         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 564         types[2] = TNY_FOLDER_TYPE_SENT;
 565         types[3] = TNY_FOLDER_TYPE_ARCHIVE;
 566
 567         /* Check dimmed rule */
 568         if (!dimmed) {
 569                 dimmed = _selected_folder_not_renameable (MODEST_MAIN_WINDOW(win));
 570                 if (dimmed)
 571                         modest_dimming_rule_set_notification (rule, "");
 572         }
 573         if (!dimmed) {
 574                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 575                 if (dimmed)
 576                         modest_dimming_rule_set_notification (rule, "");
 577         }
 578         if (!dimmed) {
 579                 dimmed = _selected_folder_is_any_of_type (win, types, 4);
 580                 if (dimmed)
 581                         modest_dimming_rule_set_notification (rule, "");
 582         }
 583         if (!dimmed) {
 584                 dimmed = _transfer_mode_enabled (win);
 585                 if (dimmed)
 586                         modest_dimming_rule_set_notification (rule, "");
 587         }
 588
 589         return dimmed;
 590 }
 591
 592 gboolean
 593 modest_ui_dimming_rules_on_open_msg (ModestWindow *win, gpointer user_data)
 594 {
 595         ModestDimmingRule *rule = NULL;
 596         gboolean dimmed = FALSE;
 597         const DimmedState *state = NULL;
 598
 599         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 600         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 601         rule = MODEST_DIMMING_RULE (user_data);
 602         state = modest_window_get_dimming_state (win);
 603
 604         /* Check dimmed rule */
 605         if (!dimmed) {
 606                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 607         }
 608         if (!dimmed) {
 609                 dimmed = state->any_marked_as_deleted;
 610                 if (dimmed) {
 611                         gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 612                         modest_dimming_rule_set_notification (rule, msg);
 613                         g_free (msg);
 614                 }
 615         }
 616         if (!dimmed) {
 617                 dimmed = _selected_msg_sent_in_progress (win);
 618                 if (dimmed)
 619                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_open_while_sent"));
 620         }
 621
 622         return dimmed;
 623 }
 624
 625 gboolean
 626 modest_ui_dimming_rules_on_reply_msg (ModestWindow *win, gpointer user_data)
 627 {
 628         ModestDimmingRule *rule = NULL;
 629         gboolean dimmed = FALSE;
 630         TnyFolderType types[3];
 631
 632         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 633         rule = MODEST_DIMMING_RULE (user_data);
 634
 635         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 636         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 637         types[2] = TNY_FOLDER_TYPE_ROOT;
 638
 639         /* Check dimmed rule */
 640         if (!dimmed) {
 641                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
 642                 if (dimmed)
 643                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 644         }
 645
 646         /* main window dimming rules */
 647         if (MODEST_IS_MAIN_WINDOW(win)) {
 648
 649                 if (!dimmed) {
 650                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 651                         if (dimmed)
 652                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_nothing_to_reply"));
 653                 }
 654                 if (!dimmed) {
 655                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, rule);
 656                 }
 657         /* msg view window dimming rules */
 658         } else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
 659
 660                 /* Check dimmed rule */
 661                 if (!dimmed) {
 662                         dimmed = _transfer_mode_enabled (win);
 663                         if (dimmed)
 664                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 665                 }
 666                 if (!dimmed) {
 667                         dimmed = _msg_download_in_progress (win);
 668                         if (dimmed)
 669                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 670                 }
 671         }
 672
 673         return dimmed;
 674 }
 675
 676
 677 gboolean
 678 modest_ui_dimming_rules_on_contents_msg (ModestWindow *win, gpointer user_data)
 679 {
 680         ModestDimmingRule *rule = NULL;
 681         gboolean dimmed = FALSE;
 682
 683         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 684         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 685         rule = MODEST_DIMMING_RULE (user_data);
 686
 687         /* Check dimmed rule */
 688         if (!dimmed) {
 689                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 690         }
 691         if (!dimmed) {
 692                 dimmed = _msg_download_completed (MODEST_MAIN_WINDOW(win));
 693                 if (dimmed)
 694                         modest_dimming_rule_set_notification (rule, "");
 695         }
 696
 697         return dimmed;
 698 }
 699
 700 gboolean
 701 modest_ui_dimming_rules_always_dimmed (ModestWindow *win, gpointer user_data)
 702 {
 703         gboolean dimmed = FALSE;
 704
 705         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 706
 707         /* Check dimmed rule */
 708         if (!dimmed)
 709                 dimmed = TRUE;
 710
 711         return dimmed;
 712 }
 713
 714 gboolean
 715 modest_ui_dimming_rules_on_delete_msg (ModestWindow *win, gpointer user_data)
 716 {
 717         ModestDimmingRule *rule = NULL;
 718         const DimmedState *state = NULL;
 719         gboolean dimmed = FALSE;
 720
 721         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 722         rule = MODEST_DIMMING_RULE (user_data);
 723         state = modest_window_get_dimming_state (win);
 724
 725         /* Check dimmed rule */
 726         if (MODEST_IS_MAIN_WINDOW (win)) {
 727                 if (!dimmed) {
 728                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 729                         if (dimmed)
 730                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_nothing_to_delete"));
 731                 }
 732                 if (!dimmed) {
 733                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 734                 }
 735                 if (!dimmed) {
 736                         dimmed = state->sent_in_progress;
 737                         if (dimmed)
 738                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 739                 }
 740                 if (!dimmed) {
 741                         dimmed = state->any_marked_as_deleted;
 742                         if (dimmed) {
 743                                 gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 744                                 modest_dimming_rule_set_notification (rule, msg);
 745                                 g_free (msg);
 746                         }
 747                 }
 748                 if (!dimmed) {
 749                         dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
 750                         if (dimmed) {
 751                                 gchar *message = NULL;
 752
 753                                 message = g_strdup_printf(_("mcen_nc_unable_to_delete_n_messages"),
 754                                                           state->already_opened_msg);
 755                                 modest_dimming_rule_set_notification (rule, message);
 756                                 g_free(message);
 757                         }
 758
 759                 }
 760         }
 761         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
 762                 if (!dimmed) {
 763                         dimmed = _transfer_mode_enabled (win);
 764                         if (dimmed)
 765                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 766                 }
 767                 if (!dimmed) {
 768                         dimmed = state->any_marked_as_deleted;
 769                         if (dimmed) {
 770                                 gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 771                                 modest_dimming_rule_set_notification (rule, msg);
 772                                 g_free (msg);
 773                         }
 774                 }
 775                 if (!dimmed) {
 776                         dimmed = state->sent_in_progress;
 777                         if (dimmed)
 778                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 779                 }
 780
 781                 /* The delete button should be dimmed when viewing an attachment,
 782                  * but should be enabled when viewing a message from the list,
 783                  * or when viewing a search result.
 784                  */
 785                 if (!dimmed) {
 786                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
 787                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW(win));
 788                                 if (dimmed) {
 789                                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 790                                 }
 791                         }
 792                 }
 793         }
 794
 795         return dimmed;
 796 }
 797
 798 gboolean
 799 modest_ui_dimming_rules_on_details (ModestWindow *win, gpointer user_data)
 800 {
 801         ModestDimmingRule *rule = NULL;
 802         GtkWidget *header_view = NULL;
 803         gboolean dimmed = FALSE;
 804
 805         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 806         rule = MODEST_DIMMING_RULE (user_data);
 807
 808         /* main window dimming rules */
 809         if (MODEST_IS_MAIN_WINDOW(win)) {
 810
 811                 /* Check dimmed rule */
 812                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 813                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
 814
 815                 /* If the header view has the focus: */
 816                 if (header_view && gtk_widget_is_focus (header_view)) {
 817                         /* Check dimmed rule */
 818                         if (!dimmed)
 819                                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 820                 }
 821                 else {
 822                         /* If the folder view has the focus: */
 823                         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 824                                 MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 825                         if (folder_view && gtk_widget_is_focus (folder_view)) {
 826                                 TnyFolderStore *folder_store
 827                                         = modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
 828                                 if (folder_store) {
 829                                         /* Only enable for folders, not accounts,
 830                                          * though the UI spec is not clear about that.
 831                                          * If we enable this for accounts then we must
 832                                          * add code to handle them in modest_ui_actions_on_details(). */
 833                                         if (!TNY_IS_FOLDER(folder_store)) {
 834                                                 dimmed = TRUE;
 835                                                 modest_dimming_rule_set_notification (rule, "");
 836                                         }
 837
 838                                         g_object_unref (folder_store);
 839                                 } else {
 840                                         dimmed = TRUE;
 841                                         modest_dimming_rule_set_notification (rule, "");
 842                                 }
 843                                 if (!dimmed) {
 844                                         dimmed = _msg_download_in_progress (win);
 845                                         if (dimmed)
 846                                                 modest_dimming_rule_set_notification (rule, "");
 847                                 }
 848
 849                         }
 850
 851                 }
 852
 853         /* msg view window dimming rules */
 854         } else {
 855
 856                 /* Check dimmed rule */
 857                 if (!dimmed) {
 858                         if (MODEST_IS_MSG_VIEW_WINDOW (win))
 859                                 dimmed = _msg_download_in_progress (win);
 860                         if (dimmed)
 861                                 modest_dimming_rule_set_notification (rule, "");
 862                 }
 863                 if (!dimmed) {
 864                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
 865                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
 866                         }
 867                         if (dimmed)
 868                                 modest_dimming_rule_set_notification (rule, "");
 869                 }
 870         }
 871
 872         return dimmed;
 873 }
 874
 875
 876 gboolean
 877 modest_ui_dimming_rules_on_mark_as_read_msg (ModestWindow *win, gpointer user_data)
 878 {
 879         ModestDimmingRule *rule = NULL;
 880         TnyHeaderFlags flags;
 881         const DimmedState *state = NULL;
 882         gboolean dimmed = FALSE;
 883
 884         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 885         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 886         rule = MODEST_DIMMING_RULE (user_data);
 887         state = modest_window_get_dimming_state (win);
 888
 889         flags = TNY_HEADER_FLAG_SEEN;
 890
 891         /* Check dimmed rule */
 892         if (!dimmed) {
 893                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 894         }
 895         if (!dimmed) {
 896                 dimmed = state->all_marked_as_seen;
 897                 if (dimmed)
 898                         modest_dimming_rule_set_notification (rule, "");
 899         }
 900
 901         return dimmed;
 902 }
 903
 904 gboolean
 905 modest_ui_dimming_rules_on_mark_as_unread_msg (ModestWindow *win, gpointer user_data)
 906 {
 907         ModestDimmingRule *rule = NULL;
 908         TnyHeaderFlags flags;
 909         const DimmedState *state = NULL;
 910         gboolean dimmed = FALSE;
 911
 912         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 913         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 914         rule = MODEST_DIMMING_RULE (user_data);
 915         state = modest_window_get_dimming_state (win);
 916
 917         flags = TNY_HEADER_FLAG_SEEN;
 918
 919         /* Check dimmed rule */
 920         if (!dimmed)
 921                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 922         if (!dimmed) {
 923                 dimmed = !state->any_marked_as_seen;
 924                 if (dimmed)
 925                         modest_dimming_rule_set_notification (rule, "");
 926         }
 927
 928         return dimmed;
 929 }
 930
 931 gboolean
 932 modest_ui_dimming_rules_on_move_to (ModestWindow *win, gpointer user_data)
 933 {
 934         ModestDimmingRule *rule = NULL;
 935         gboolean dimmed = FALSE;
 936
 937         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 938         rule = MODEST_DIMMING_RULE (user_data);
 939
 940         if (MODEST_IS_MAIN_WINDOW (win))
 941                 dimmed = modest_ui_dimming_rules_on_main_window_move_to (win, user_data);
 942         else if (MODEST_IS_MSG_VIEW_WINDOW (win))
 943                  dimmed = modest_ui_dimming_rules_on_view_window_move_to (win, user_data);
 944
 945         return dimmed;
 946 }
 947
 948
 949 gboolean
 950 modest_ui_dimming_rules_on_main_window_move_to (ModestWindow *win, gpointer user_data)
 951 {
 952         GtkWidget *folder_view = NULL;
 953         ModestDimmingRule *rule = NULL;
 954         const DimmedState *state = NULL;
 955         gboolean dimmed = FALSE;
 956
 957         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
 958         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 959         rule = MODEST_DIMMING_RULE (user_data);
 960         state = modest_window_get_dimming_state (win);
 961
 962         /* Get the folder view */
 963         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 964                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 965
 966
 967         /* Check diming rules for folders transfer  */
 968         if (folder_view && gtk_widget_is_focus (folder_view)) {
 969                 TnyFolderType types[5];
 970
 971                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 972                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 973                 types[2] = TNY_FOLDER_TYPE_SENT;
 974                 types[3] = TNY_FOLDER_TYPE_ROOT;
 975                 types[4] = TNY_FOLDER_TYPE_INBOX;
 976
 977                 /* Apply folder rules */
 978                 if (!dimmed) {
 979                         dimmed = _selected_folder_not_moveable (MODEST_MAIN_WINDOW(win));
 980                         if (dimmed)
 981                                 modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
 982                 }
 983                 if (!dimmed) {
 984                         dimmed = _selected_folder_is_any_of_type (win, types, 5);
 985                         if (dimmed)
 986                                 modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
 987                 }
 988         }
 989
 990         /* Check diming rules for messages transfer  */
 991         if (!dimmed) {
 992                 dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
 993                 if (dimmed) {
 994                         gchar *message = g_strdup_printf(_("emev_nc_unabletomove_items"),
 995                                                          state->already_opened_msg);
 996                         modest_dimming_rule_set_notification (rule, message);
 997                         g_free(message);
 998                 }
 999         }
1000         if (!dimmed) {
1001                 if (!(folder_view && gtk_widget_is_focus (folder_view)))
1002                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
1003
1004         }
1005         if (!dimmed) {
1006                 dimmed = _selected_msg_sent_in_progress (win);
1007                 if (dimmed)
1008                         modest_dimming_rule_set_notification (rule, _("sfil_ib_unable_to_move_selected_items"));
1009         }
1010
1011         return dimmed;
1012 }
1013
1014 gboolean
1015 modest_ui_dimming_rules_on_view_window_move_to (ModestWindow *win, gpointer user_data)
1016 {
1017         ModestDimmingRule *rule = NULL;
1018         gboolean dimmed = FALSE;
1019
1020         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1021         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1022         rule = MODEST_DIMMING_RULE (user_data);
1023
1024         /* Check dimmed rule */
1025         if (!dimmed) {
1026                 dimmed = _transfer_mode_enabled (win);
1027                 if (dimmed)
1028                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1029         }
1030         if (!dimmed) {
1031                 dimmed = modest_window_get_dimming_state (win)->any_marked_as_deleted;
1032                 if (dimmed) {
1033                         gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
1034                         modest_dimming_rule_set_notification (rule, msg);
1035                         g_free (msg);
1036                 }
1037         }
1038
1039         if (!dimmed) {
1040                 dimmed = _selected_msg_sent_in_progress (win);
1041                 if (dimmed)
1042                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_item"));
1043         }
1044         if (!dimmed) {
1045                 if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1046                         /* The move_to button should be dimmed when viewing an attachment,
1047                          * but should be enabled when viewing a message from the list,
1048                          * or when viewing a search result.
1049                          */
1050                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
1051                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
1052                         }
1053                 }
1054
1055                 if (dimmed)
1056                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_item"));
1057         }
1058
1059         return dimmed;
1060 }
1061
1062 gboolean
1063 modest_ui_dimming_rules_on_find_msg (ModestWindow *win, gpointer user_data)
1064 {
1065         ModestDimmingRule *rule = NULL;
1066         gboolean dimmed = FALSE;
1067
1068         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1069         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1070         rule = MODEST_DIMMING_RULE (user_data);
1071
1072         /* Check dimmed rule */
1073         if (!dimmed) {
1074                 dimmed = _transfer_mode_enabled (win);
1075                 if (dimmed)
1076                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1077         }
1078
1079         return dimmed;
1080 }
1081
1082 gboolean
1083 modest_ui_dimming_rules_on_paste (ModestWindow *win, gpointer user_data)
1084 {
1085         ModestDimmingRule *rule = NULL;
1086         TnyFolderType types[3];
1087         gboolean dimmed = FALSE;
1088
1089         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1090         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1091         rule = MODEST_DIMMING_RULE (user_data);
1092
1093         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1094         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1095         types[2] = TNY_FOLDER_TYPE_SENT;
1096
1097         /* Check dimmed rule */
1098         if (!dimmed) {
1099                 dimmed = _clipboard_is_empty (win);
1100                 if (dimmed)
1101                         modest_dimming_rule_set_notification (rule,
1102                                                               dgettext("hildon-common-strings",
1103                                                                        "ecoc_ib_edwin_nothing_to_paste"));
1104         }
1105         if (!dimmed) {
1106                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1107                 if (dimmed)
1108                         modest_dimming_rule_set_notification (rule,
1109                                                               dgettext("hildon-common-strings",
1110                                                                        "ckct_ib_unable_to_paste_here"));
1111         }
1112         if (!dimmed) {
1113                 dimmed = !_folder_view_has_focus (win);
1114                 if (dimmed)
1115                         modest_dimming_rule_set_notification (rule,
1116                                         dgettext("hildon-common-strings",
1117                                         "ckct_ib_unable_to_paste_here"));
1118         }
1119         if (!dimmed) {
1120                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win), TRUE);
1121                 if (dimmed)
1122                         modest_dimming_rule_set_notification (rule,
1123                                                               dgettext("hildon-common-strings",
1124                                                                        "ckct_ib_unable_to_paste_here"));
1125         }
1126         if (!dimmed) {
1127                 dimmed = _selected_folder_is_same_as_source (win);
1128                 if (dimmed)
1129                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_copy_target_error"));
1130         }
1131         if (!dimmed) {
1132                 dimmed = _selected_folder_has_subfolder_with_same_name (win);
1133                 if (dimmed)
1134                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_copy_target_error"));
1135         }
1136
1137         return dimmed;
1138 }
1139
1140
1141 gboolean
1142 modest_ui_dimming_rules_on_select_all (ModestWindow *win, gpointer user_data)
1143 {
1144         ModestDimmingRule *rule = NULL;
1145         gboolean dimmed = FALSE;
1146         GtkWidget *focused = NULL;
1147
1148         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1149         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1150         rule = MODEST_DIMMING_RULE (user_data);
1151
1152         focused = gtk_window_get_focus (GTK_WINDOW (win));
1153
1154         /* Main window dimming rules */
1155         if (!dimmed && MODEST_IS_MAIN_WINDOW (win))
1156                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1157
1158         if (!dimmed && MODEST_IS_MAIN_WINDOW (win))
1159                 dimmed = _header_view_is_all_selected (MODEST_MAIN_WINDOW(win));
1160
1161         if (!dimmed && GTK_IS_ENTRY (focused)) {
1162                 const gchar *current_text;
1163                 current_text = gtk_entry_get_text (GTK_ENTRY (focused));
1164                 dimmed = ((current_text == NULL) || (current_text[0] == '\0'));
1165         }
1166
1167         if (!dimmed && GTK_IS_TEXT_VIEW (focused)) {
1168                 GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
1169                 dimmed = (gtk_text_buffer_get_char_count (buffer) < 1);
1170         }
1171
1172         if (dimmed && MODEST_IS_ATTACHMENTS_VIEW (focused))
1173                 dimmed = FALSE;
1174         return dimmed;
1175 }
1176
1177 gboolean
1178 modest_ui_dimming_rules_on_view_attachments (ModestWindow *win, gpointer user_data)
1179 {
1180         ModestDimmingRule *rule = NULL;
1181         gboolean dimmed = FALSE;
1182
1183         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1184         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1185         rule = MODEST_DIMMING_RULE (user_data);
1186
1187         /* Check dimmed rule */
1188         if (!dimmed)
1189                 dimmed = _invalid_attach_selected (win, TRUE, TRUE, FALSE, rule);
1190
1191         if (!dimmed) {
1192                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1193                 if (dimmed) {
1194                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1195                 }
1196         }
1197
1198         return dimmed;
1199 }
1200
1201 gboolean
1202 modest_ui_dimming_rules_on_save_attachments (ModestWindow *win, gpointer user_data)
1203 {
1204         ModestDimmingRule *rule = NULL;
1205         gboolean dimmed = FALSE;
1206
1207         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1208         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1209         rule = MODEST_DIMMING_RULE (user_data);
1210
1211         /* Check dimmed rule */
1212         if (!dimmed)
1213                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, FALSE, rule);
1214
1215         if (!dimmed) {
1216                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1217                 if (dimmed) {
1218                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1219                 }
1220         }
1221
1222         return dimmed;
1223 }
1224
1225 gboolean
1226 modest_ui_dimming_rules_on_remove_attachments (ModestWindow *win, gpointer user_data)
1227 {
1228         ModestDimmingRule *rule = NULL;
1229         const DimmedState *state = NULL;
1230         gboolean dimmed = FALSE;
1231
1232         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1233         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1234         rule = MODEST_DIMMING_RULE (user_data);
1235         state = modest_window_get_dimming_state (win);
1236
1237         /* Check in main window if there's only one message selected */
1238         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1239                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW (win), TRUE, rule);
1240         }
1241
1242         /* Check in view window if there's any attachment selected */
1243         if (!dimmed && MODEST_IS_MSG_VIEW_WINDOW (win)) {
1244                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, TRUE, NULL);
1245                 if (dimmed)
1246                         modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1247         }
1248
1249         if (!dimmed) {
1250
1251                 dimmed = _selected_msg_sent_in_progress (win);
1252                 if (dimmed) {
1253                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1254                 }
1255         }
1256
1257         /* cannot purge in editable drafts nor pop folders */
1258         if (!dimmed) {
1259                 dimmed = _invalid_folder_for_purge (win, rule);
1260                 if (dimmed)
1261                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1262         }
1263
1264         /* Check if the selected message in main window has attachments */
1265         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1266                 dimmed = !(state->any_has_attachments);
1267                 if (dimmed)
1268                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1269         }
1270
1271         /* Check if all attachments are already purged */
1272         if (!dimmed) {
1273                 dimmed = _purged_attach_selected (win, TRUE, rule);
1274         }
1275
1276         /* Check if the message is already downloaded */
1277         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1278                 dimmed = !_msg_download_completed (MODEST_MAIN_WINDOW (win));
1279                 if (dimmed)
1280                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1281         }
1282
1283
1284         return dimmed;
1285 }
1286
1287 gboolean
1288 modest_ui_dimming_rules_on_undo (ModestWindow *win, gpointer user_data)
1289 {
1290         ModestDimmingRule *rule = NULL;
1291         gboolean dimmed = FALSE;
1292
1293         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1294         rule = MODEST_DIMMING_RULE (user_data);
1295
1296         /* Check dimmed rule */
1297         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1298                 dimmed = _clipboard_is_empty (win);
1299                 if (dimmed)
1300                         modest_dimming_rule_set_notification (rule, "");
1301         }
1302
1303         if (!dimmed && MODEST_IS_MSG_EDIT_WINDOW (win)) {
1304                 dimmed = !modest_msg_edit_window_can_undo (MODEST_MSG_EDIT_WINDOW (win));
1305         }
1306
1307         return dimmed;
1308 }
1309
1310 gboolean
1311 modest_ui_dimming_rules_on_redo (ModestWindow *win, gpointer user_data)
1312 {
1313         ModestDimmingRule *rule = NULL;
1314         gboolean dimmed = FALSE;
1315
1316         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1317         rule = MODEST_DIMMING_RULE (user_data);
1318
1319         /* Check dimmed rule */
1320         if (!dimmed && MODEST_IS_MSG_EDIT_WINDOW (win)) {
1321                 dimmed = !modest_msg_edit_window_can_redo (MODEST_MSG_EDIT_WINDOW (win));
1322         }
1323
1324         return dimmed;
1325 }
1326
1327 gboolean
1328 modest_ui_dimming_rules_on_cut (ModestWindow *win, gpointer user_data)
1329 {
1330         ModestDimmingRule *rule = NULL;
1331         const DimmedState *state = NULL;
1332         gboolean dimmed = FALSE;
1333
1334         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1335         rule = MODEST_DIMMING_RULE (user_data);
1336         state = modest_window_get_dimming_state (win);
1337
1338         /* Check common dimming rules */
1339         if (!dimmed) {
1340                 dimmed = _invalid_clipboard_selected (win, rule);
1341         }
1342
1343         /* Check window specific dimming rules */
1344         if (MODEST_IS_MAIN_WINDOW (win)) {
1345                 /* Get focused widget */
1346                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1347
1348                 if (MODEST_IS_HEADER_VIEW (focused)) {
1349                         if (!dimmed) {
1350                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1351                                 if (dimmed)
1352                                         modest_dimming_rule_set_notification (rule, "");
1353                         }
1354                         if (!dimmed) {
1355                                 dimmed = _selected_msg_sent_in_progress (win);
1356                                 if (dimmed)
1357                                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1358                         }
1359                         if (!dimmed) {
1360                                 dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
1361                                 if(dimmed)
1362                                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1363                         }
1364                 }
1365                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1366                         TnyFolderType types[3];
1367
1368                         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1369                         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1370                         types[2] = TNY_FOLDER_TYPE_SENT;
1371
1372                         /* Apply folder rules */
1373                         if (!dimmed) {
1374                                 dimmed = _selected_folder_not_deletable (MODEST_MAIN_WINDOW(win));
1375                                 if (dimmed)
1376                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1377                         }
1378                         if (!dimmed) {
1379                                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
1380                                 if (dimmed)
1381                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1382                         }
1383                         if (!dimmed) {
1384                                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1385                                 if (dimmed)
1386                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1387                         }
1388                 }
1389         }
1390
1391         return dimmed;
1392 }
1393
1394 gboolean
1395 modest_ui_dimming_rules_on_copy (ModestWindow *win, gpointer user_data)
1396 {
1397         ModestDimmingRule *rule = NULL;
1398         const DimmedState *state = NULL;
1399         gboolean dimmed = FALSE;
1400
1401         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1402         rule = MODEST_DIMMING_RULE (user_data);
1403         state = modest_window_get_dimming_state (win);
1404
1405         /* Check common dimming rules */
1406         if (!dimmed) {
1407                 dimmed = _invalid_clipboard_selected (win, rule);
1408         }
1409
1410         /* Check window specific dimming rules */
1411         if (MODEST_IS_MAIN_WINDOW (win)) {
1412                 /* Get focused widget */
1413                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1414
1415                 if (MODEST_IS_HEADER_VIEW (focused)) {
1416                         if (!dimmed) {
1417                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1418                                 if (dimmed)
1419                                         modest_dimming_rule_set_notification (rule, "");
1420                         }
1421                         if (!dimmed) {
1422                                 dimmed = _selected_msg_sent_in_progress (win);
1423                                 if (dimmed)
1424                                         modest_dimming_rule_set_notification (rule, _(""));
1425                         }
1426                         if (!dimmed) {
1427                                 dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
1428                                 if(dimmed)
1429                                         modest_dimming_rule_set_notification (rule, _(""));
1430                         }
1431                 }
1432                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1433                         TnyFolderType types[3];
1434
1435                         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1436                         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1437                         types[2] = TNY_FOLDER_TYPE_SENT;
1438
1439                         if (!dimmed) {
1440                                 dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
1441                                 if (dimmed)
1442                                         modest_dimming_rule_set_notification (rule, _(""));
1443                         }
1444                         if (!dimmed) {
1445                                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1446                                 if (dimmed)
1447                                         modest_dimming_rule_set_notification (rule, _(""));
1448                         }
1449                 }
1450         }
1451
1452         return dimmed;
1453 }
1454
1455 gboolean
1456 modest_ui_dimming_rules_on_set_style (ModestWindow *win, gpointer user_data)
1457 {
1458         ModestDimmingRule *rule = NULL;
1459         const DimmedState *state = NULL;
1460         gboolean dimmed = FALSE;
1461
1462         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1463         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1464         rule = MODEST_DIMMING_RULE (user_data);
1465         state = modest_window_get_dimming_state (win);
1466
1467
1468         /* Check common dimming rules */
1469         if (!dimmed) {
1470                 ModestMsgEditFormat format;
1471                 format = modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
1472
1473                 dimmed = (format != MODEST_MSG_EDIT_FORMAT_HTML);
1474                 if (dimmed)
1475                         modest_dimming_rule_set_notification (rule, _("mcen_ib_item_unavailable_plaintext"));
1476         }
1477
1478         if (!dimmed) {
1479                 GtkWidget *body;
1480                 body = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1481                                                                 MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1482
1483                 dimmed = ((body == NULL)||(!gtk_widget_is_focus (body)));
1484                 if (dimmed)
1485                         modest_dimming_rule_set_notification (rule, _("mcen_ib_move_cursor_to_message"));
1486         }
1487
1488
1489         return dimmed;
1490 }
1491
1492 gboolean
1493 modest_ui_dimming_rules_on_zoom (ModestWindow *win, gpointer user_data)
1494 {
1495         ModestDimmingRule *rule = NULL;
1496         const DimmedState *state = NULL;
1497         gboolean dimmed = FALSE;
1498
1499         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1500         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1501         rule = MODEST_DIMMING_RULE (user_data);
1502         state = modest_window_get_dimming_state (win);
1503
1504         if (!dimmed) {
1505                 GtkWidget *body;
1506                 body = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1507                                                                 MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1508
1509                 dimmed = ((body == NULL)||(!gtk_widget_is_focus (body)));
1510                 if (dimmed)
1511                         modest_dimming_rule_set_notification (rule, _("mcen_ib_move_cursor_to_message"));
1512         }
1513
1514
1515         return dimmed;
1516 }
1517
1518 gboolean
1519 modest_ui_dimming_rules_on_editor_paste (ModestWindow *win, gpointer user_data)
1520 {
1521         ModestDimmingRule *rule = NULL;
1522         const DimmedState *state = NULL;
1523         gboolean dimmed = FALSE;
1524         GtkWidget *focused = NULL;
1525
1526         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1527         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1528         rule = MODEST_DIMMING_RULE (user_data);
1529         state = modest_window_get_dimming_state (win);
1530
1531         focused = gtk_window_get_focus (GTK_WINDOW (win));
1532
1533         if (!dimmed) {
1534                 dimmed = MODEST_IS_ATTACHMENTS_VIEW (focused);
1535         }
1536
1537         if (!dimmed) {
1538                 dimmed = GTK_IS_TOGGLE_BUTTON (focused);
1539         }
1540
1541         if (!dimmed) {
1542                 ModestEmailClipboard *e_clipboard = modest_runtime_get_email_clipboard ();
1543                 const gchar *clipboard_text = modest_msg_edit_window_get_clipboard_text (MODEST_MSG_EDIT_WINDOW (win));
1544
1545                 dimmed = modest_email_clipboard_cleared (e_clipboard) &&
1546                   ((clipboard_text == NULL) || (clipboard_text[0] == '\0'));
1547         }
1548
1549         return dimmed;
1550 }
1551
1552 gboolean
1553 modest_ui_dimming_rules_on_editor_remove_attachment (ModestWindow *win, gpointer user_data)
1554 {
1555         ModestDimmingRule *rule = NULL;
1556         const DimmedState *state = NULL;
1557         gboolean dimmed = FALSE;
1558
1559         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1560         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1561         rule = MODEST_DIMMING_RULE (user_data);
1562         state = modest_window_get_dimming_state (win);
1563
1564         if (!dimmed) {
1565                 TnyList *selected_attachments = NULL;
1566                 gint n_att_selected = 0;
1567                 GtkWidget *attachments_view;
1568                 attachments_view = modest_msg_edit_window_get_child_widget (
1569                         MODEST_MSG_EDIT_WINDOW (win),
1570                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_ATTACHMENTS);
1571
1572                 selected_attachments = modest_attachments_view_get_selection (
1573                         MODEST_ATTACHMENTS_VIEW (attachments_view));
1574                 n_att_selected = tny_list_get_length (selected_attachments);
1575                 g_object_unref (selected_attachments);
1576
1577                 dimmed = (n_att_selected < 1);
1578         }
1579
1580         return dimmed;
1581 }
1582
1583 gboolean
1584 modest_ui_dimming_rules_on_send (ModestWindow *win, gpointer user_data)
1585 {
1586         ModestDimmingRule *rule = NULL;
1587         const DimmedState *state = NULL;
1588         gboolean dimmed = FALSE;
1589
1590         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1591         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1592         rule = MODEST_DIMMING_RULE (user_data);
1593         state = modest_window_get_dimming_state (win);
1594
1595         if (!dimmed) {
1596                 GtkWidget *subject_field, *body_field;
1597                 GtkTextBuffer *body_buffer;
1598                 const gchar *subject = NULL;
1599                 body_field = modest_msg_edit_window_get_child_widget (
1600                         MODEST_MSG_EDIT_WINDOW (win),
1601                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1602                 subject_field = modest_msg_edit_window_get_child_widget (
1603                         MODEST_MSG_EDIT_WINDOW (win),
1604                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_SUBJECT);
1605                 body_buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (body_field));
1606                 subject = gtk_entry_get_text (GTK_ENTRY (subject_field));
1607
1608                 dimmed = (subject == NULL || subject[0] == '\0');
1609                 if (dimmed)
1610                         modest_dimming_rule_set_notification (rule, _("mcen_ib_subject_not_modified"));
1611         }
1612
1613         if (!dimmed) {
1614                 GtkWidget *to_field, *cc_field, *bcc_field;
1615                 GtkTextBuffer * to_buffer, *cc_buffer, *bcc_buffer;
1616                 cc_field = modest_msg_edit_window_get_child_widget (
1617                         MODEST_MSG_EDIT_WINDOW (win),
1618                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_CC);
1619                 to_field = modest_msg_edit_window_get_child_widget (
1620                         MODEST_MSG_EDIT_WINDOW (win),
1621                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_TO);
1622                 bcc_field = modest_msg_edit_window_get_child_widget (
1623                         MODEST_MSG_EDIT_WINDOW (win),
1624                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BCC);
1625                 to_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (to_field));
1626                 cc_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (cc_field));
1627                 bcc_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (bcc_field));
1628
1629                 dimmed = ((gtk_text_buffer_get_char_count (to_buffer) +
1630                            gtk_text_buffer_get_char_count (cc_buffer) +
1631                            gtk_text_buffer_get_char_count (bcc_buffer)) == 0);
1632                 if (dimmed)
1633                         modest_dimming_rule_set_notification (rule, _("mcen_ib_add_recipients_first"));
1634         }
1635
1636         return dimmed;
1637 }
1638
1639 gboolean
1640 modest_ui_dimming_rules_on_view_previous (ModestWindow *win, gpointer user_data)
1641 {
1642         ModestDimmingRule *rule = NULL;
1643         gboolean dimmed = FALSE;
1644
1645         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1646         rule = MODEST_DIMMING_RULE (user_data);
1647
1648         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1649
1650         /* Check dimmed rule */
1651         if (!dimmed) {
1652                 dimmed = _transfer_mode_enabled (win);
1653                 if (dimmed)
1654                         modest_dimming_rule_set_notification (
1655                                         rule, _("mail_ib_notavailable_downloading"));
1656         }
1657         if (!dimmed) {
1658                 dimmed = modest_msg_view_window_first_message_selected (
1659                                 MODEST_MSG_VIEW_WINDOW(win));
1660                 modest_dimming_rule_set_notification (rule, NULL);
1661         }
1662
1663         return dimmed;
1664 }
1665
1666 gboolean
1667 modest_ui_dimming_rules_on_view_next (ModestWindow *win, gpointer user_data)
1668 {
1669         ModestDimmingRule *rule = NULL;
1670         gboolean dimmed = FALSE;
1671
1672         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1673         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1674         rule = MODEST_DIMMING_RULE (user_data);
1675
1676         /* Check dimmed rule */
1677         if (!dimmed) {
1678                 dimmed = _transfer_mode_enabled (win);
1679                 if (dimmed)
1680                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1681         }
1682         if (!dimmed) {
1683                 dimmed = modest_msg_view_window_last_message_selected (MODEST_MSG_VIEW_WINDOW (win));
1684                 modest_dimming_rule_set_notification (rule, NULL);
1685         }
1686
1687         return dimmed;
1688 }
1689
1690
1691 gboolean
1692 modest_ui_dimming_rules_on_tools_smtp_servers (ModestWindow *win, gpointer user_data)
1693 {
1694         const gboolean dimmed =
1695                 !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
1696                         TRUE);
1697
1698         return dimmed;
1699 }
1700
1701 gboolean
1702 modest_ui_dimming_rules_on_cancel_sending (ModestWindow *win, gpointer user_data)
1703 {
1704         ModestDimmingRule *rule = NULL;
1705         TnyFolderType types[1];
1706         const DimmedState *state = NULL;
1707         gboolean dimmed = FALSE;
1708
1709         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1710         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1711         rule = MODEST_DIMMING_RULE (user_data);
1712         state = modest_window_get_dimming_state (win);
1713
1714         types[0] = TNY_FOLDER_TYPE_OUTBOX;
1715
1716         /* Check dimmed rules */
1717         if (!dimmed) {
1718                 dimmed = !_selected_folder_is_any_of_type (win, types, 1);
1719                 if (dimmed)
1720                         modest_dimming_rule_set_notification (rule, "");
1721         }
1722         if (!dimmed) {
1723                 dimmed = !_sending_in_progress (win);
1724                 if (dimmed)
1725                         modest_dimming_rule_set_notification (rule, "");
1726         }
1727
1728         return dimmed;
1729 }
1730
1731 gboolean
1732 modest_ui_dimming_rules_on_csm_cancel_sending (ModestWindow *win, gpointer user_data)
1733 {
1734         ModestDimmingRule *rule = NULL;
1735         TnyFolderType types[1];
1736         const DimmedState *state = NULL;
1737         gboolean dimmed = FALSE;
1738
1739         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1740         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1741         rule = MODEST_DIMMING_RULE (user_data);
1742         state = modest_window_get_dimming_state (win);
1743
1744         types[0] = TNY_FOLDER_TYPE_OUTBOX;
1745
1746         /* Check dimmed rules */
1747         if (!dimmed) {
1748                 dimmed = !_selected_folder_is_any_of_type (win, types, 1);
1749                 if (dimmed)
1750                         modest_dimming_rule_set_notification (rule, "");
1751         }
1752         if (!dimmed) {
1753                 dimmed = !_sending_in_progress (win);
1754                 if (dimmed)
1755                         modest_dimming_rule_set_notification (rule, "");
1756         }
1757
1758         return dimmed;
1759 }
1760
1761 gboolean
1762 modest_ui_dimming_rules_on_send_receive (ModestWindow *win, gpointer user_data)
1763 {
1764         ModestDimmingRule *rule = NULL;
1765         gboolean dimmed = FALSE;
1766
1767         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1768         rule = MODEST_DIMMING_RULE (user_data);
1769
1770         /* Check dimmed rule */
1771         if (!dimmed) {
1772                 dimmed = !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
1773                                                           TRUE);
1774                 if (dimmed)
1775                         modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
1776         }
1777
1778         return dimmed;
1779 }
1780
1781 gboolean
1782 modest_ui_dimming_rules_on_send_receive_all (ModestWindow *win, gpointer user_data)
1783 {
1784         ModestDimmingRule *rule = NULL;
1785         gboolean dimmed = FALSE;
1786
1787         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1788         rule = MODEST_DIMMING_RULE (user_data);
1789
1790         /* Check dimmed rule */
1791         if (!dimmed) {
1792                 GSList *account_names = modest_account_mgr_account_names (modest_runtime_get_account_mgr (), TRUE);
1793                 if (g_slist_length (account_names) <= 1)
1794                         dimmed = TRUE;
1795                 if (dimmed)
1796                         modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
1797
1798                 modest_account_mgr_free_account_names (account_names);
1799         }
1800
1801         return dimmed;
1802 }
1803
1804 gboolean
1805 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
1806 {
1807         ModestDimmingRule *rule = NULL;
1808         gboolean dimmed = FALSE;
1809         GtkWidget *focused = NULL;
1810
1811         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1812         rule = MODEST_DIMMING_RULE (user_data);
1813         focused = gtk_window_get_focus (GTK_WINDOW (win));
1814
1815         dimmed = !focused;
1816
1817         if (!dimmed) {
1818                 gchar *selection = NULL;
1819                 if (GTK_IS_TEXT_VIEW (focused)) {
1820                         GtkTextIter start, end;
1821                         GtkTextBuffer *buffer = NULL;
1822                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
1823                         if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end)) {
1824                                 selection = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
1825                         }
1826                 } else if (GTK_IS_LABEL (focused)) {
1827                         selection = modest_text_utils_label_get_selection (GTK_LABEL (focused));
1828                 } else {
1829                         gboolean do_check = TRUE;
1830                         GtkClipboard *clipboard;
1831                         if (GTK_IS_HTML (focused)) {
1832                                 const gchar *sel;
1833                                 int len = -1;
1834                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
1835                                 do_check = !((sel == NULL) || (sel[0] == '\0'));
1836                         }
1837                         if (do_check) {
1838                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
1839                                 selection = gtk_clipboard_wait_for_text (clipboard);
1840                         } else {
1841                                 selection = NULL;
1842                         }
1843                 }
1844                 dimmed = !((selection != NULL) && (modest_text_utils_validate_recipient (selection, NULL)));
1845         }
1846
1847         return dimmed;
1848 }
1849
1850 /* *********************** static utility functions ******************** */
1851
1852
1853 static gboolean
1854 _selected_folder_not_writeable (ModestMainWindow *win,
1855                                 gboolean for_paste)
1856 {
1857         GtkWidget *folder_view = NULL;
1858         TnyFolderStore *parent_folder = NULL;
1859         ModestEmailClipboard *clipboard = NULL;
1860         ModestTnyFolderRules rules;
1861         gboolean is_local_acc = FALSE;
1862         gboolean xfer_folders = FALSE;
1863         gboolean result = FALSE;
1864
1865         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1866
1867         /* Get folder view */
1868         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1869                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1870         /* If no folder view, always dimmed */
1871         if (!folder_view)
1872                 return TRUE;
1873
1874         /* Get selected folder as parent of new folder to create */
1875         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1876         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1877                 /* If it's the local account and its transfering folders, then do not dim */
1878                 if (TNY_IS_ACCOUNT (parent_folder)) {
1879                         is_local_acc = modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder));
1880                         if (for_paste) {
1881                                 clipboard = modest_runtime_get_email_clipboard ();
1882                                 xfer_folders = modest_email_clipboard_folder_copied (clipboard);
1883                         }
1884                 }
1885
1886                 if (for_paste)
1887                         result = !(is_local_acc && xfer_folders);
1888                 else
1889                         result = !is_local_acc;
1890                 goto frees;
1891         }
1892
1893         /* Check dimmed rule */
1894         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1895         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
1896
1897         /* free */
1898  frees:
1899         if (parent_folder != NULL)
1900                 g_object_unref (parent_folder);
1901
1902         return result;
1903 }
1904
1905 static gboolean
1906 _selected_folder_not_deletable (ModestMainWindow *win)
1907 {
1908         GtkWidget *folder_view = NULL;
1909         TnyFolderStore *parent_folder = NULL;
1910         ModestTnyFolderRules rules;
1911         gboolean result = FALSE;
1912
1913         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1914
1915         /* Get folder view */
1916         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1917                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1918         /* If no folder view, always dimmed */
1919         if (!folder_view)
1920                 return TRUE;
1921
1922         /* Get selected folder as parent of new folder to create */
1923         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1924         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1925                 result = TRUE;
1926                 goto frees;
1927         }
1928
1929         /* Check dimmed rule */
1930         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1931         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_DELETABLE;
1932
1933         /* free */
1934  frees:
1935         if (parent_folder != NULL)
1936                 g_object_unref (parent_folder);
1937
1938         return result;
1939 }
1940
1941 static gboolean
1942 _selected_folder_not_moveable (ModestMainWindow *win)
1943 {
1944         GtkWidget *folder_view = NULL;
1945         TnyFolderStore *parent_folder = NULL;
1946         ModestTnyFolderRules rules;
1947         gboolean result = FALSE;
1948
1949         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1950
1951         /* Get folder view */
1952         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1953                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1954         /* If no folder view, always dimmed */
1955         if (!folder_view)
1956                 return TRUE;
1957
1958         /* Get selected folder as parent of new folder to create */
1959         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1960         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1961                 result = TRUE;
1962                 goto frees;
1963         }
1964
1965         /* Check dimmed rule */
1966         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1967         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE;
1968
1969         /* free */
1970  frees:
1971         if (parent_folder != NULL)
1972                 g_object_unref (parent_folder);
1973
1974         return result;
1975 }
1976
1977 static gboolean
1978 _selected_folder_not_renameable (ModestMainWindow *win)
1979 {
1980         GtkWidget *folder_view = NULL;
1981         TnyFolderStore *parent_folder = NULL;
1982         ModestTnyFolderRules rules;
1983         gboolean result = FALSE;
1984
1985         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1986
1987         /* Get folder view */
1988         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1989                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1990         /* If no folder view, always dimmed */
1991         if (!folder_view)
1992                 return TRUE;
1993
1994         /* Get selected folder as parent of new folder to create */
1995         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1996         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1997                 result = TRUE;
1998                 goto frees;
1999         }
2000
2001         /* Check dimmed rule */
2002         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2003         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_RENAMEABLE;
2004
2005         /* free */
2006  frees:
2007         if (parent_folder != NULL)
2008                 g_object_unref (parent_folder);
2009
2010         return result;
2011 }
2012
2013 static gboolean
2014 _selected_folder_is_root_or_inbox (ModestMainWindow *win)
2015 {
2016         TnyFolderType types[2];
2017         gboolean result = FALSE;
2018
2019         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2020
2021         types[0] = TNY_FOLDER_TYPE_ROOT;
2022         types[1] = TNY_FOLDER_TYPE_INBOX;
2023
2024         /* Check folder type */
2025         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 2);
2026
2027         /* Check pop and MMC accounts */
2028         if (!result) {
2029                 result = _selected_folder_is_MMC_or_POP_root (win);
2030         }
2031
2032         return result;
2033 }
2034
2035
2036 static gboolean
2037 _selected_folder_is_root (ModestMainWindow *win)
2038 {
2039         TnyFolderType types[1];
2040         gboolean result = FALSE;
2041
2042         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2043
2044         /* All accounts are root items: */
2045         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2046                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2047         if (folder_view) {
2048                 gboolean is_account = FALSE;
2049                 TnyFolderStore *folder_store =
2050                         modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2051                 if (folder_store) {
2052                         is_account = TNY_IS_ACCOUNT (folder_store);
2053                         g_object_unref (folder_store);
2054                         folder_store = NULL;
2055                 }
2056
2057                 if (is_account)
2058                         return TRUE;
2059         }
2060
2061         /* Try something more precise: */
2062         types[0] = TNY_FOLDER_TYPE_ROOT;
2063
2064         /* Check folder type */
2065         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 1);
2066
2067         /* Check pop and MMC accounts */
2068         if (!result) {
2069                 result = _selected_folder_is_MMC_or_POP_root (win);
2070         }
2071
2072         return result;
2073 }
2074
2075 static gboolean
2076 _selected_folder_is_MMC_or_POP_root (ModestMainWindow *win)
2077 {
2078         GtkWidget *folder_view = NULL;
2079         TnyFolderStore *parent_folder = NULL;
2080         gboolean result = FALSE;
2081
2082         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2083                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2084         if (!folder_view)
2085                 return FALSE;
2086
2087         /* Get selected folder as parent of new folder to create */
2088         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2089         if (!parent_folder)
2090                 return TRUE;
2091
2092         if (TNY_IS_ACCOUNT (parent_folder)) {
2093                 /* If it's the local account then do not dim */
2094                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
2095                         result = FALSE;
2096                 } else {
2097                                 /* If it's the MMC root folder then dim it */
2098                         if (!strcmp (tny_account_get_id (TNY_ACCOUNT (parent_folder)), MODEST_MMC_ACCOUNT_ID)) {
2099                                         result = TRUE;
2100                         } else {
2101                                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
2102                                 /* If it's POP then dim */
2103                                 result = (modest_protocol_info_get_transport_store_protocol (proto_str) ==
2104                                                   MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
2105                         }
2106                 }
2107         }
2108         g_object_unref (parent_folder);
2109
2110         return result;
2111 }
2112
2113 static gboolean
2114 _header_view_is_all_selected (ModestMainWindow *win)
2115 {
2116         const DimmedState *state = NULL;
2117
2118         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2119
2120         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2121
2122         return state->all_selected;
2123 }
2124
2125 static gboolean
2126 _selected_folder_is_empty (ModestMainWindow *win)
2127 {
2128         GtkWidget *folder_view = NULL, *header_view = NULL;
2129         TnyFolderStore *folder = NULL;
2130         gboolean result = FALSE;
2131
2132         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2133
2134         /* Get folder view */
2135         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2136                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2137
2138         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2139                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
2140
2141         /* If no folder view, always dimmed */
2142         if (!folder_view || !header_view)
2143                 return TRUE;
2144
2145         /* Get selected folder as parent of new folder to create */
2146         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2147         if (!(folder && TNY_IS_FOLDER(folder))) {
2148                 if (folder)
2149                         g_object_unref (folder);
2150                 return TRUE;
2151         }
2152
2153         /* Check folder type */
2154         if (modest_header_view_is_empty (MODEST_HEADER_VIEW (header_view)) ||
2155             tny_folder_get_all_count (TNY_FOLDER (folder)) == 0)
2156                 result = TRUE;
2157
2158         /* free */
2159         g_object_unref (folder);
2160
2161         return result;
2162 }
2163
2164 static gboolean
2165 _folder_view_has_focus (ModestWindow *win)
2166 {
2167         GtkWidget *folder_view = NULL;
2168
2169         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2170
2171         /* Get folder view */
2172         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2173                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2174         if (!folder_view)
2175                 return FALSE;
2176
2177         if (gtk_widget_is_focus(folder_view))
2178                 return TRUE;
2179
2180         return FALSE;
2181 }
2182
2183 static gboolean
2184 _selected_folder_is_same_as_source (ModestWindow *win)
2185 {
2186         ModestEmailClipboard *clipboard = NULL;
2187         GtkWidget *folder_view = NULL;
2188         TnyFolderStore *folder = NULL;
2189         gboolean result = FALSE;
2190
2191         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2192
2193         /* Get folder view */
2194         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2195                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2196         if (!folder_view)
2197                 return FALSE;
2198
2199         /* Get selected folder as destination folder */
2200         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2201         if (!(folder && TNY_IS_FOLDER(folder))) {
2202                 result = FALSE;
2203                 goto frees;
2204         }
2205
2206         /* Check clipboard is cleared */
2207         clipboard = modest_runtime_get_email_clipboard ();
2208         if (modest_email_clipboard_cleared (clipboard)) {
2209                 result = FALSE;
2210                 goto frees;
2211         }
2212
2213         /* Check source folder */
2214         result = modest_email_clipboard_check_source_folder (clipboard, TNY_FOLDER (folder));
2215
2216         /* Free */
2217  frees:
2218         g_object_unref (folder);
2219
2220         return result;
2221 }
2222
2223 static gboolean
2224 _selected_folder_is_any_of_type (ModestWindow *win,
2225                                  TnyFolderType types[],
2226                                  guint ntypes)
2227 {
2228         GtkWidget *folder_view = NULL;
2229         TnyFolderStore *folder = NULL;
2230         TnyFolderType folder_type;
2231         guint i=0;
2232         gboolean result = FALSE;
2233
2234         /*Get current folder */
2235         if (MODEST_IS_MAIN_WINDOW(win)) {
2236
2237                 /* Get folder view */
2238                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2239                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2240                 /* If no folder view, always dimmed */
2241                 if (!folder_view)
2242                         return FALSE;
2243
2244                 /* Get selected folder as parent of new folder to create */
2245                 folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2246
2247                 if (!(folder && TNY_IS_FOLDER(folder))) {
2248                         if (folder)
2249                                 g_object_unref (folder);
2250                         return FALSE;
2251                 }
2252
2253                 /* Check folder type */
2254                 result = _folder_is_any_of_type (TNY_FOLDER(folder), types, ntypes);
2255         }
2256         else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2257                 folder_type = modest_msg_view_window_get_folder_type (MODEST_MSG_VIEW_WINDOW (win));
2258                 for (i=0; i < ntypes; i++) {
2259                         result = result || folder_type == types[i];
2260                 }
2261         }
2262
2263
2264         /* free */
2265         if (folder)
2266                 g_object_unref (folder);
2267
2268         return result;
2269 }
2270
2271 static gboolean
2272 _folder_is_any_of_type (TnyFolder *folder,
2273                         TnyFolderType types[],
2274                         guint ntypes)
2275 {
2276         TnyFolderType folder_type;
2277         gboolean result = FALSE;
2278         guint i;
2279
2280         g_return_val_if_fail (TNY_IS_FOLDER(folder), FALSE);
2281
2282         /* Get folder type */
2283         folder_type = modest_tny_folder_guess_folder_type (folder);
2284         if (folder_type == TNY_FOLDER_TYPE_INVALID)
2285                 g_warning ("%s: BUG: TNY_FOLDER_TYPE_INVALID", __FUNCTION__);
2286
2287         /* Check foler type */
2288         for (i=0; i < ntypes; i++) {
2289                 result = result || folder_type == types[i];
2290         }
2291
2292         return result;
2293 }
2294
2295 static gboolean
2296 _clipboard_is_empty (ModestWindow *win)
2297 {
2298         gboolean result = FALSE;
2299
2300         if (MODEST_IS_MAIN_WINDOW (win)) {
2301                 ModestEmailClipboard *clipboard = NULL;
2302                 clipboard = modest_runtime_get_email_clipboard ();
2303                 if (modest_email_clipboard_cleared (clipboard))
2304                  result = TRUE;
2305         }
2306
2307         return result;
2308 }
2309
2310 static gboolean
2311 _invalid_clipboard_selected (ModestWindow *win,
2312                              ModestDimmingRule *rule)
2313 {
2314         const DimmedState *state = NULL;
2315         gboolean result = FALSE;
2316         GtkWidget *focused = NULL;
2317
2318         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2319         state = modest_window_get_dimming_state (win);
2320         /* Get focuesed widget */
2321         focused = gtk_window_get_focus (GTK_WINDOW (win));
2322
2323         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
2324                 gboolean has_selection = FALSE;
2325                 if (GTK_IS_TEXT_VIEW (focused)) {
2326                         GtkTextBuffer *buffer = NULL;
2327                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2328                         has_selection = modest_text_utils_buffer_selection_is_valid (buffer);
2329                 } else if (GTK_IS_EDITABLE (focused)) {
2330                         has_selection = gtk_editable_get_selection_bounds (GTK_EDITABLE (focused), NULL, NULL);
2331                 }
2332                 result = !has_selection;
2333         } else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2334                 if (focused) {
2335                         MODEST_DEBUG_BLOCK (g_message ("FOCUSED %s", g_type_name (G_TYPE_FROM_INSTANCE (focused))););
2336                         if (GTK_IS_LABEL (focused) &&
2337                             !gtk_label_get_selection_bounds (GTK_LABEL (focused), NULL, NULL)) {
2338                                 result = TRUE;
2339                         } else if (GTK_IS_TEXT_VIEW (focused)) {
2340                                 GtkTextBuffer *buffer;
2341                                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2342                                 result = !gtk_text_buffer_get_has_selection (buffer);
2343                         } else if (GTK_IS_HTML (focused)) {
2344                                 const gchar *sel;
2345                                 int len = -1;
2346                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
2347                                 result = ((sel == NULL) || (sel[0] == '\0'));
2348                         } else if (MODEST_IS_ATTACHMENTS_VIEW (focused)) {
2349                                 result = TRUE;
2350                         } else {
2351                                 GtkClipboard *clipboard;
2352                                 gchar *selection;
2353
2354                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
2355                                 /* Get clipboard selection*/
2356                                 selection = gtk_clipboard_wait_for_text (clipboard);
2357                                 /* Check dimming */
2358                                 result = (selection == NULL);
2359                                 g_free (selection);
2360                         }
2361                 } else {
2362                         result = TRUE;
2363                 }
2364
2365                 if (result)
2366                         modest_dimming_rule_set_notification (rule, "");
2367
2368         }
2369         else if (MODEST_IS_MAIN_WINDOW (win)) {
2370                 /* Check dimming */
2371                 result = state->n_selected == 0;
2372                 if (result)
2373                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2374         }
2375
2376         return result;
2377 }
2378
2379
2380 static gboolean
2381 _invalid_attach_selected (ModestWindow *win,
2382                           gboolean unique,
2383                           gboolean for_view,
2384                           gboolean for_remove,
2385                           ModestDimmingRule *rule)
2386 {
2387         TnyList *attachments;
2388         gint n_selected;
2389         TnyHeaderFlags flags;
2390         gboolean nested_attachments = FALSE;
2391         gboolean selected_messages = FALSE;
2392         const DimmedState *state = NULL;
2393         gboolean result = FALSE;
2394
2395         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2396         state = modest_window_get_dimming_state (win);
2397
2398         if (MODEST_IS_MAIN_WINDOW (win)) {
2399                 flags = TNY_HEADER_FLAG_ATTACHMENTS;
2400                 if (!result)
2401                         result = !state->any_has_attachments;
2402         }
2403         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2404
2405                 /* Get selected atachments */
2406                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2407                 n_selected = tny_list_get_length (attachments);
2408
2409                 /* Check unique */
2410                 if (!result) {
2411                         if (unique)
2412                                 result = n_selected != 1;
2413                         else
2414
2415                                 result = n_selected < 1;
2416                 }
2417
2418                 /* Check attached type (view operation not required) */
2419                 if (!result && !for_view)  {
2420                         TnyIterator *iter;
2421                         iter = tny_list_create_iterator (attachments);
2422                         while (!tny_iterator_is_done (iter) && !result) {
2423                                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2424                                 TnyList *nested_list = tny_simple_list_new ();
2425                                 if (!for_remove && modest_tny_mime_part_is_msg (mime_part)) {
2426                                         selected_messages = TRUE;
2427                                         result = TRUE;
2428                                 }
2429                                 tny_mime_part_get_parts (mime_part, nested_list);
2430                                 if (!for_remove && tny_list_get_length (nested_list) > 0) {
2431                                         nested_attachments = TRUE;
2432                                         result = TRUE;
2433                                 }
2434                                 g_object_unref (nested_list);
2435                                 g_object_unref (mime_part);
2436                                 tny_iterator_next (iter);
2437                         }
2438                         g_object_unref (iter);
2439                 }
2440
2441                 /* Set notifications */
2442                 if (result && rule != NULL) {
2443                         if (selected_messages) {
2444                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_save_attach_mail"));
2445                         } else if (nested_attachments) {
2446                                 modest_dimming_rule_set_notification (rule, _("FIXME:unable to save attachments with nested elements"));
2447                         } else if (n_selected == 0) {
2448                                 modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
2449                         } else if (unique) {
2450                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_display_more"));
2451                         }
2452                 }
2453
2454                 /* Free */
2455                 g_object_unref (attachments);
2456         }
2457
2458         return result;
2459 }
2460
2461 static gboolean
2462 _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule)
2463 {
2464         TnyList *attachments = NULL;
2465         TnyIterator *iter;
2466         gint purged = 0;
2467         gint n_attachments = 0;
2468         gboolean result = FALSE;
2469
2470         /* This should check if _all_ the attachments are already purged. If only some
2471          * of them are purged, then it does not cause dim as there's a confirmation dialog
2472          * for removing only local attachments */
2473
2474         /* Get selected atachments */
2475         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2476                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2477         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2478                 /* If we're in main window, we won't know if there are already purged attachments */
2479                 return FALSE;
2480         }
2481
2482         if (attachments == NULL)
2483                 return FALSE;
2484
2485         if (tny_list_get_length (attachments)) {
2486                 g_object_unref (attachments);
2487                 return FALSE;
2488         }
2489
2490         iter = tny_list_create_iterator (attachments);
2491         while (!tny_iterator_is_done (iter)) {
2492                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2493                 if (tny_mime_part_is_purged (mime_part)) {
2494                         purged++;
2495                 }
2496                 n_attachments++;
2497                 g_object_unref (mime_part);
2498                 tny_iterator_next (iter);
2499         }
2500         g_object_unref (iter);
2501
2502         /* Free */
2503         g_object_unref (attachments);
2504
2505         if (all)
2506                 result = (purged == n_attachments);
2507         else
2508                 result = (purged > 0);
2509
2510         /* This string no longer exists, refer to NB#75415 for more info
2511         if (result && (rule != NULL))
2512                 modest_dimming_rule_set_notification (rule, _("mail_ib_attachment_already_purged"));
2513         */
2514
2515         return result;
2516 }
2517
2518 static gboolean
2519 _invalid_msg_selected (ModestMainWindow *win,
2520                        gboolean unique,
2521                        ModestDimmingRule *rule)
2522 {
2523         GtkWidget *folder_view = NULL;
2524         const DimmedState *state = NULL;
2525         gboolean result = FALSE;
2526
2527         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2528         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (rule), FALSE);
2529         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2530
2531         /* Get folder view to check focus */
2532         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2533                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2534
2535         /* Check dimmed rule (TODO: check focus on widgets */
2536         if (!result) {
2537                 result = ((state->n_selected == 0 ) ||
2538                           (gtk_widget_is_focus (folder_view)));
2539                 if (result)
2540                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2541         }
2542         if (!result && unique) {
2543                 result = state->n_selected > 1;
2544                 if (result)
2545                         modest_dimming_rule_set_notification (rule, _("mcen_ib_select_one_message"));
2546         }
2547
2548         return result;
2549 }
2550
2551
2552 static gboolean
2553 _msg_download_in_progress (ModestWindow *win)
2554 {
2555         gboolean result = FALSE;
2556
2557         g_return_val_if_fail (MODEST_IS_WINDOW (win), FALSE);
2558
2559         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2560                 result = modest_msg_view_window_toolbar_on_transfer_mode (MODEST_MSG_VIEW_WINDOW(win));
2561         }
2562         else if (MODEST_IS_MAIN_WINDOW (win)) {
2563                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW(win));
2564         }
2565
2566         return result;
2567 }
2568
2569 static gboolean
2570 _msg_download_completed (ModestMainWindow *win)
2571 {
2572         const DimmedState *state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2573         return state->any_marked_as_cached;
2574 }
2575
2576 static void
2577 fill_list_of_caches (gpointer key, gpointer value, gpointer userdata)
2578 {
2579         GSList **send_queues = (GSList **) userdata;
2580         *send_queues = g_slist_prepend (*send_queues, value);
2581 }
2582
2583 static gboolean
2584 _selected_msg_sent_in_progress (ModestWindow *win)
2585 {
2586         const DimmedState *state = modest_window_get_dimming_state (win);
2587         return state->sent_in_progress;
2588 }
2589
2590
2591 static gboolean
2592 _sending_in_progress (ModestWindow *win)
2593 {
2594         GHashTable *send_queue_cache = NULL;
2595         ModestCacheMgr *cache_mgr = NULL;
2596         ModestTnySendQueue *send_queue = NULL;
2597         GSList *send_queues = NULL, *node = NULL;
2598         gboolean result = FALSE;
2599
2600         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW (win), FALSE);
2601
2602         /* Get send queue */
2603         cache_mgr = modest_runtime_get_cache_mgr ();
2604         send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
2605                                                        MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
2606
2607         g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
2608
2609         for (node = send_queues; node != NULL && !result; node = g_slist_next (node)) {
2610                 send_queue = MODEST_TNY_SEND_QUEUE (node->data);
2611
2612                 /* Check if send operation is in progress */
2613                 result = modest_tny_send_queue_sending_in_progress (send_queue);
2614         }
2615
2616         return result;
2617 }
2618
2619 static gboolean
2620 _invalid_folder_for_purge (ModestWindow *win,
2621                            ModestDimmingRule *rule)
2622 {
2623         TnyFolder *folder = NULL;
2624         TnyAccount *account = NULL;
2625         gboolean result = FALSE;
2626
2627         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2628
2629                 /* Get folder and account of message */
2630                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2631                 g_return_val_if_fail(msg != NULL, TRUE);
2632                 folder = tny_msg_get_folder (msg);
2633                 g_object_unref (msg);
2634                 if (folder == NULL) {
2635                         result = TRUE;
2636                         goto frees;
2637                 }
2638         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2639                 GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2640                                                                               MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2641                 if (!folder_view)
2642                         return FALSE;
2643                 folder = (TnyFolder *) modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
2644                 /* Could be a folder store */
2645                 if (folder == NULL || ! TNY_IS_FOLDER (folder))
2646                         goto frees;
2647         } else {
2648                 g_return_val_if_reached (FALSE);
2649         }
2650         account = modest_tny_folder_get_account (folder);
2651         if (account == NULL) goto frees;
2652
2653         /* Check account */
2654         if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (account))) {
2655                 TnyFolderType types[2];
2656                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
2657                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
2658
2659                 if (_selected_folder_is_any_of_type (win, types, 2)) {
2660                         result = TRUE;
2661                 }
2662         } else {
2663                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (account));
2664                 ModestTransportStoreProtocol proto;
2665                 proto = modest_protocol_info_get_transport_store_protocol (proto_str);
2666                 /* If it's a remote folder then dim */
2667                 if (proto == MODEST_PROTOCOL_STORE_POP || proto == MODEST_PROTOCOL_STORE_IMAP) {
2668                         result = TRUE;
2669                 }
2670         }
2671
2672 frees:
2673         if (folder != NULL)
2674                 g_object_unref (folder);
2675         if (account != NULL)
2676                 g_object_unref (account);
2677
2678         return result;
2679 }
2680
2681 static gboolean
2682 _transfer_mode_enabled (ModestWindow *win)
2683 {
2684         gboolean result = FALSE;
2685
2686         /* Check dimming */
2687         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2688                 result = modest_msg_view_window_transfer_mode_enabled (MODEST_MSG_VIEW_WINDOW (win));
2689         } else if (MODEST_IS_MAIN_WINDOW(win)) {
2690                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW (win));
2691         } else {
2692                 g_warning("_transfer_mode_enabled called with wrong window type");
2693         }
2694
2695         return result;
2696 }
2697
2698 static gboolean
2699 _selected_folder_has_subfolder_with_same_name (ModestWindow *win)
2700 {
2701         GtkWidget *folder_view = NULL;
2702         TnyFolderStore *folder = NULL;
2703         ModestEmailClipboard *clipboard = NULL;
2704         const gchar *folder_name = NULL;
2705         gboolean result = FALSE;
2706
2707         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
2708
2709         /*Get current parent folder */
2710         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2711                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2712         /* If no folder view, always dimmed */
2713         if (!folder_view) return FALSE;
2714
2715         /* Get selected folder as parent of new folder to create */
2716         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2717         if (!(folder && TNY_IS_FOLDER(folder))) goto frees;
2718
2719         /* get modest clipboard and source folder */
2720         clipboard = modest_runtime_get_email_clipboard ();
2721         folder_name = modest_email_clipboard_get_folder_name (clipboard);
2722         if (folder_name == NULL) goto frees;
2723
2724         /* Check source subfolders names */
2725         result = modest_tny_folder_has_subfolder_with_name (folder, folder_name,
2726                                                             TRUE);
2727
2728         /* Free */
2729  frees:
2730         if (folder != NULL)
2731                 g_object_unref (folder);
2732
2733
2734         return result;
2735 }
2736
2737 gboolean
2738 modest_ui_dimming_rules_on_save_to_drafts (ModestWindow *win,
2739                                            gpointer user_data)
2740 {
2741         ModestDimmingRule *rule = NULL;
2742         gboolean dimmed = FALSE;
2743
2744         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
2745         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2746         rule = MODEST_DIMMING_RULE (user_data);
2747
2748         /* Check dimmed rule */
2749         if (!dimmed) {
2750                 dimmed = !modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (win));
2751         }
2752
2753         return dimmed;
2754 }
2755
2756 gboolean
2757 modest_ui_dimming_rules_on_insert_image (ModestWindow *win,
2758                                          gpointer user_data)
2759 {
2760         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
2761
2762         ModestMsgEditFormat format =
2763           modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
2764
2765         return (format != MODEST_MSG_EDIT_FORMAT_HTML);
2766 }