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
 540         if (!dimmed)
 541                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 542
 543         return dimmed;
 544
 545 }
 546
 547 gboolean
 548 modest_ui_dimming_rules_on_rename_folder (ModestWindow *win, gpointer user_data)
 549 {
 550         ModestDimmingRule *rule = NULL;
 551         TnyFolderType types[4];
 552         gboolean dimmed = FALSE;
 553
 554         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 555         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 556         rule = MODEST_DIMMING_RULE (user_data);
 557
 558         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 559         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 560         types[2] = TNY_FOLDER_TYPE_SENT;
 561         types[3] = TNY_FOLDER_TYPE_ARCHIVE;
 562
 563         /* Check dimmed rule */
 564         if (!dimmed) {
 565                 dimmed = _selected_folder_not_renameable (MODEST_MAIN_WINDOW(win));
 566                 if (dimmed)
 567                         modest_dimming_rule_set_notification (rule, "");
 568         }
 569         if (!dimmed) {
 570                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
 571                 if (dimmed)
 572                         modest_dimming_rule_set_notification (rule, "");
 573         }
 574         if (!dimmed) {
 575                 dimmed = _selected_folder_is_any_of_type (win, types, 4);
 576                 if (dimmed)
 577                         modest_dimming_rule_set_notification (rule, "");
 578         }
 579         if (!dimmed) {
 580                 dimmed = _transfer_mode_enabled (win);
 581                 if (dimmed)
 582                         modest_dimming_rule_set_notification (rule, "");
 583         }
 584
 585         return dimmed;
 586 }
 587
 588 gboolean
 589 modest_ui_dimming_rules_on_open_msg (ModestWindow *win, gpointer user_data)
 590 {
 591         ModestDimmingRule *rule = NULL;
 592         gboolean dimmed = FALSE;
 593         const DimmedState *state = NULL;
 594
 595         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 596         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 597         rule = MODEST_DIMMING_RULE (user_data);
 598         state = modest_window_get_dimming_state (win);
 599
 600         /* Check dimmed rule */
 601         if (!dimmed) {
 602                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 603         }
 604         if (!dimmed) {
 605                 dimmed = state->any_marked_as_deleted;
 606                 if (dimmed) {
 607                         gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 608                         modest_dimming_rule_set_notification (rule, msg);
 609                         g_free (msg);
 610                 }
 611         }
 612         if (!dimmed) {
 613                 dimmed = _selected_msg_sent_in_progress (win);
 614                 if (dimmed)
 615                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_open_while_sent"));
 616         }
 617
 618         return dimmed;
 619 }
 620
 621 gboolean
 622 modest_ui_dimming_rules_on_reply_msg (ModestWindow *win, gpointer user_data)
 623 {
 624         ModestDimmingRule *rule = NULL;
 625         gboolean dimmed = FALSE;
 626         TnyFolderType types[3];
 627
 628         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 629         rule = MODEST_DIMMING_RULE (user_data);
 630
 631         types[0] = TNY_FOLDER_TYPE_DRAFTS;
 632         types[1] = TNY_FOLDER_TYPE_OUTBOX;
 633         types[2] = TNY_FOLDER_TYPE_ROOT;
 634
 635         /* Check dimmed rule */
 636         if (!dimmed) {
 637                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
 638                 if (dimmed)
 639                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 640         }
 641
 642         /* main window dimming rules */
 643         if (MODEST_IS_MAIN_WINDOW(win)) {
 644
 645                 if (!dimmed) {
 646                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 647                         if (dimmed)
 648                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_nothing_to_reply"));
 649                 }
 650                 if (!dimmed) {
 651                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, rule);
 652                 }
 653         /* msg view window dimming rules */
 654         } else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
 655
 656                 /* Check dimmed rule */
 657                 if (!dimmed) {
 658                         dimmed = _transfer_mode_enabled (win);
 659                         if (dimmed)
 660                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 661                 }
 662                 if (!dimmed) {
 663                         dimmed = _msg_download_in_progress (win);
 664                         if (dimmed)
 665                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_reply"));
 666                 }
 667         }
 668
 669         return dimmed;
 670 }
 671
 672
 673 gboolean
 674 modest_ui_dimming_rules_on_contents_msg (ModestWindow *win, gpointer user_data)
 675 {
 676         ModestDimmingRule *rule = NULL;
 677         gboolean dimmed = FALSE;
 678
 679         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 680         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 681         rule = MODEST_DIMMING_RULE (user_data);
 682
 683         /* Check dimmed rule */
 684         if (!dimmed) {
 685                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 686         }
 687         if (!dimmed) {
 688                 dimmed = _msg_download_completed (MODEST_MAIN_WINDOW(win));
 689                 if (dimmed)
 690                         modest_dimming_rule_set_notification (rule, "");
 691         }
 692
 693         return dimmed;
 694 }
 695
 696 gboolean
 697 modest_ui_dimming_rules_always_dimmed (ModestWindow *win, gpointer user_data)
 698 {
 699         gboolean dimmed = FALSE;
 700
 701         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
 702
 703         /* Check dimmed rule */
 704         if (!dimmed)
 705                 dimmed = TRUE;
 706
 707         return dimmed;
 708 }
 709
 710 gboolean
 711 modest_ui_dimming_rules_on_delete_msg (ModestWindow *win, gpointer user_data)
 712 {
 713         ModestDimmingRule *rule = NULL;
 714         const DimmedState *state = NULL;
 715         gboolean dimmed = FALSE;
 716
 717         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 718         rule = MODEST_DIMMING_RULE (user_data);
 719         state = modest_window_get_dimming_state (win);
 720
 721         /* Check dimmed rule */
 722         if (MODEST_IS_MAIN_WINDOW (win)) {
 723                 if (!dimmed) {
 724                         dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
 725                         if (dimmed)
 726                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_nothing_to_delete"));
 727                 }
 728                 if (!dimmed) {
 729                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 730                 }
 731                 if (!dimmed) {
 732                         dimmed = state->sent_in_progress;
 733                         if (dimmed)
 734                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 735                 }
 736                 if (!dimmed) {
 737                         dimmed = state->any_marked_as_deleted;
 738                         if (dimmed) {
 739                                 gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 740                                 modest_dimming_rule_set_notification (rule, msg);
 741                                 g_free (msg);
 742                         }
 743                 }
 744                 if (!dimmed) {
 745                         dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
 746                         if (dimmed) {
 747                                 gchar *message = NULL;
 748
 749                                 message = g_strdup_printf(_("mcen_nc_unable_to_delete_n_messages"),
 750                                                           state->already_opened_msg);
 751                                 modest_dimming_rule_set_notification (rule, message);
 752                                 g_free(message);
 753                         }
 754
 755                 }
 756         }
 757         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
 758                 if (!dimmed) {
 759                         dimmed = _transfer_mode_enabled (win);
 760                         if (dimmed)
 761                                 modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
 762                 }
 763                 if (!dimmed) {
 764                         dimmed = state->any_marked_as_deleted;
 765                         if (dimmed) {
 766                                 gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
 767                                 modest_dimming_rule_set_notification (rule, msg);
 768                                 g_free (msg);
 769                         }
 770                 }
 771                 if (!dimmed) {
 772                         dimmed = state->sent_in_progress;
 773                         if (dimmed)
 774                                 modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 775                 }
 776
 777                 /* This could happen if we're viewing a message of the
 778                    outbox that has been already sent */
 779                 if (!dimmed) {
 780                         ModestMsgViewWindow *view_window = MODEST_MSG_VIEW_WINDOW (win);
 781                         if (modest_msg_view_window_last_message_selected (view_window) &&
 782                             modest_msg_view_window_first_message_selected (view_window))
 783                                 dimmed = TRUE;
 784                 }
 785
 786                 /* The delete button should be dimmed when viewing an attachment,
 787                  * but should be enabled when viewing a message from the list,
 788                  * or when viewing a search result.
 789                  */
 790                 if (!dimmed) {
 791                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
 792                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW(win));
 793                                 if (dimmed) {
 794                                         modest_dimming_rule_set_notification (rule, _CS("ckct_ib_unable_to_delete"));
 795                                 }
 796                         }
 797                 }
 798         }
 799
 800         return dimmed;
 801 }
 802
 803 gboolean
 804 modest_ui_dimming_rules_on_details (ModestWindow *win, gpointer user_data)
 805 {
 806         ModestDimmingRule *rule = NULL;
 807         GtkWidget *header_view = NULL;
 808         gboolean dimmed = FALSE;
 809
 810         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 811         rule = MODEST_DIMMING_RULE (user_data);
 812
 813         /* main window dimming rules */
 814         if (MODEST_IS_MAIN_WINDOW(win)) {
 815
 816                 /* Check dimmed rule */
 817                 header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 818                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
 819
 820                 /* If the header view has the focus: */
 821                 if (header_view && gtk_widget_is_focus (header_view)) {
 822                         /* Check dimmed rule */
 823                         if (!dimmed)
 824                                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), TRUE, user_data);
 825                 }
 826                 else {
 827                         /* If the folder view has the focus: */
 828                         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
 829                                 MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 830                         if (folder_view && gtk_widget_is_focus (folder_view)) {
 831                                 TnyFolderStore *folder_store
 832                                         = modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
 833                                 if (folder_store) {
 834                                         /* Only enable for folders, not accounts,
 835                                          * though the UI spec is not clear about that.
 836                                          * If we enable this for accounts then we must
 837                                          * add code to handle them in modest_ui_actions_on_details(). */
 838                                         if (!TNY_IS_FOLDER(folder_store)) {
 839                                                 dimmed = TRUE;
 840                                                 modest_dimming_rule_set_notification (rule, "");
 841                                         }
 842
 843                                         g_object_unref (folder_store);
 844                                 } else {
 845                                         dimmed = TRUE;
 846                                         modest_dimming_rule_set_notification (rule, "");
 847                                 }
 848                                 if (!dimmed) {
 849                                         dimmed = _msg_download_in_progress (win);
 850                                         if (dimmed)
 851                                                 modest_dimming_rule_set_notification (rule, "");
 852                                 }
 853
 854                         }
 855
 856                 }
 857
 858         /* msg view window dimming rules */
 859         } else {
 860
 861                 /* Check dimmed rule */
 862                 if (!dimmed) {
 863                         if (MODEST_IS_MSG_VIEW_WINDOW (win))
 864                                 dimmed = _msg_download_in_progress (win);
 865                         if (dimmed)
 866                                 modest_dimming_rule_set_notification (rule, "");
 867                 }
 868                 if (!dimmed) {
 869                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
 870                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
 871                         }
 872                         if (dimmed)
 873                                 modest_dimming_rule_set_notification (rule, "");
 874                 }
 875         }
 876
 877         return dimmed;
 878 }
 879
 880
 881 gboolean
 882 modest_ui_dimming_rules_on_mark_as_read_msg (ModestWindow *win, gpointer user_data)
 883 {
 884         ModestDimmingRule *rule = NULL;
 885         TnyHeaderFlags flags;
 886         const DimmedState *state = NULL;
 887         gboolean dimmed = FALSE;
 888
 889         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 890         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 891         rule = MODEST_DIMMING_RULE (user_data);
 892         state = modest_window_get_dimming_state (win);
 893
 894         flags = TNY_HEADER_FLAG_SEEN;
 895
 896         /* Check dimmed rule */
 897         if (!dimmed) {
 898                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 899         }
 900         if (!dimmed) {
 901                 dimmed = state->all_marked_as_seen;
 902                 if (dimmed)
 903                         modest_dimming_rule_set_notification (rule, "");
 904         }
 905
 906         return dimmed;
 907 }
 908
 909 gboolean
 910 modest_ui_dimming_rules_on_mark_as_unread_msg (ModestWindow *win, gpointer user_data)
 911 {
 912         ModestDimmingRule *rule = NULL;
 913         TnyHeaderFlags flags;
 914         const DimmedState *state = NULL;
 915         gboolean dimmed = FALSE;
 916
 917         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
 918         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 919         rule = MODEST_DIMMING_RULE (user_data);
 920         state = modest_window_get_dimming_state (win);
 921
 922         flags = TNY_HEADER_FLAG_SEEN;
 923
 924         /* Check dimmed rule */
 925         if (!dimmed)
 926                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
 927         if (!dimmed) {
 928                 dimmed = !state->any_marked_as_seen;
 929                 if (dimmed)
 930                         modest_dimming_rule_set_notification (rule, "");
 931         }
 932
 933         return dimmed;
 934 }
 935
 936 gboolean
 937 modest_ui_dimming_rules_on_move_to (ModestWindow *win, gpointer user_data)
 938 {
 939         ModestDimmingRule *rule = NULL;
 940         gboolean dimmed = FALSE;
 941
 942         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 943         rule = MODEST_DIMMING_RULE (user_data);
 944
 945         if (MODEST_IS_MAIN_WINDOW (win))
 946                 dimmed = modest_ui_dimming_rules_on_main_window_move_to (win, user_data);
 947         else if (MODEST_IS_MSG_VIEW_WINDOW (win))
 948                  dimmed = modest_ui_dimming_rules_on_view_window_move_to (win, user_data);
 949
 950         return dimmed;
 951 }
 952
 953
 954 gboolean
 955 modest_ui_dimming_rules_on_main_window_move_to (ModestWindow *win, gpointer user_data)
 956 {
 957         GtkWidget *folder_view = NULL;
 958         ModestDimmingRule *rule = NULL;
 959         const DimmedState *state = NULL;
 960         gboolean dimmed = FALSE;
 961
 962         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
 963         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
 964         rule = MODEST_DIMMING_RULE (user_data);
 965         state = modest_window_get_dimming_state (win);
 966
 967         /* Get the folder view */
 968         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
 969                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
 970
 971
 972         /* Check diming rules for folders transfer  */
 973         if (folder_view && gtk_widget_is_focus (folder_view)) {
 974                 TnyFolderType types[5];
 975
 976                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
 977                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
 978                 types[2] = TNY_FOLDER_TYPE_SENT;
 979                 types[3] = TNY_FOLDER_TYPE_ROOT;
 980                 types[4] = TNY_FOLDER_TYPE_INBOX;
 981
 982                 /* Apply folder rules */
 983                 if (!dimmed) {
 984                         dimmed = _selected_folder_not_moveable (MODEST_MAIN_WINDOW(win));
 985                         if (dimmed)
 986                                 modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
 987                 }
 988                 if (!dimmed) {
 989                         dimmed = _selected_folder_is_any_of_type (win, types, 5);
 990                         if (dimmed)
 991                                 modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
 992                 }
 993         }
 994
 995         /* Check diming rules for messages transfer  */
 996         if (!dimmed) {
 997                 dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
 998                 if (dimmed) {
 999                         gchar *message = g_strdup_printf(_("emev_nc_unabletomove_items"),
1000                                                          state->already_opened_msg);
1001                         modest_dimming_rule_set_notification (rule, message);
1002                         g_free(message);
1003                 }
1004         }
1005         if (!dimmed) {
1006                 if (!(folder_view && gtk_widget_is_focus (folder_view)))
1007                         dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW(win), FALSE, user_data);
1008
1009         }
1010         if (!dimmed) {
1011                 dimmed = _selected_msg_sent_in_progress (win);
1012                 if (dimmed)
1013                         modest_dimming_rule_set_notification (rule, _("sfil_ib_unable_to_move_selected_items"));
1014         }
1015
1016         return dimmed;
1017 }
1018
1019 gboolean
1020 modest_ui_dimming_rules_on_view_window_move_to (ModestWindow *win, gpointer user_data)
1021 {
1022         ModestDimmingRule *rule = NULL;
1023         gboolean dimmed = FALSE;
1024
1025         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1026         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1027         rule = MODEST_DIMMING_RULE (user_data);
1028
1029         /* Check dimmed rule */
1030         if (!dimmed) {
1031                 dimmed = _transfer_mode_enabled (win);
1032                 if (dimmed)
1033                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1034         }
1035         if (!dimmed) {
1036                 dimmed = modest_window_get_dimming_state (win)->any_marked_as_deleted;
1037                 if (dimmed) {
1038                         gchar *msg = modest_ui_actions_get_msg_already_deleted_error_msg (win);
1039                         modest_dimming_rule_set_notification (rule, msg);
1040                         g_free (msg);
1041                 }
1042         }
1043
1044         if (!dimmed) {
1045                 dimmed = _selected_msg_sent_in_progress (win);
1046                 if (dimmed)
1047                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_item"));
1048         }
1049
1050         /* This could happen if we're viewing a message of the outbox
1051            that has been already sent */
1052         if (!dimmed) {
1053                 ModestMsgViewWindow *view_window = MODEST_MSG_VIEW_WINDOW (win);
1054                 if (modest_msg_view_window_last_message_selected (view_window) &&
1055                     modest_msg_view_window_first_message_selected (view_window))
1056                         dimmed = TRUE;
1057         }
1058
1059         if (!dimmed) {
1060                 if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1061                         /* The move_to button should be dimmed when viewing an attachment,
1062                          * but should be enabled when viewing a message from the list,
1063                          * or when viewing a search result.
1064                          */
1065                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
1066                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
1067                         }
1068                 }
1069
1070                 if (dimmed)
1071                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_item"));
1072         }
1073
1074         return dimmed;
1075 }
1076
1077 gboolean
1078 modest_ui_dimming_rules_on_find_msg (ModestWindow *win, gpointer user_data)
1079 {
1080         ModestDimmingRule *rule = NULL;
1081         gboolean dimmed = FALSE;
1082
1083         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1084         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1085         rule = MODEST_DIMMING_RULE (user_data);
1086
1087         /* Check dimmed rule */
1088         if (!dimmed) {
1089                 dimmed = _transfer_mode_enabled (win);
1090                 if (dimmed)
1091                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1092         }
1093
1094         return dimmed;
1095 }
1096
1097 gboolean
1098 modest_ui_dimming_rules_on_paste (ModestWindow *win, gpointer user_data)
1099 {
1100         ModestDimmingRule *rule = NULL;
1101         TnyFolderType types[3];
1102         gboolean dimmed = FALSE;
1103
1104         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1105         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1106         rule = MODEST_DIMMING_RULE (user_data);
1107
1108         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1109         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1110         types[2] = TNY_FOLDER_TYPE_SENT;
1111
1112         /* Check dimmed rule */
1113         if (!dimmed) {
1114                 dimmed = _clipboard_is_empty (win);
1115                 if (dimmed)
1116                         modest_dimming_rule_set_notification (rule,
1117                                                               dgettext("hildon-common-strings",
1118                                                                        "ecoc_ib_edwin_nothing_to_paste"));
1119         }
1120         if (!dimmed) {
1121                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1122                 if (dimmed)
1123                         modest_dimming_rule_set_notification (rule,
1124                                                               dgettext("hildon-common-strings",
1125                                                                        "ckct_ib_unable_to_paste_here"));
1126         }
1127         if (!dimmed) {
1128                 dimmed = !_folder_view_has_focus (win);
1129                 if (dimmed)
1130                         modest_dimming_rule_set_notification (rule,
1131                                         dgettext("hildon-common-strings",
1132                                         "ckct_ib_unable_to_paste_here"));
1133         }
1134         if (!dimmed) {
1135                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win), TRUE);
1136                 if (dimmed)
1137                         modest_dimming_rule_set_notification (rule,
1138                                                               dgettext("hildon-common-strings",
1139                                                                        "ckct_ib_unable_to_paste_here"));
1140         }
1141         if (!dimmed) {
1142                 dimmed = _selected_folder_is_same_as_source (win);
1143                 if (dimmed)
1144                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_copy_target_error"));
1145         }
1146         if (!dimmed) {
1147                 dimmed = _selected_folder_has_subfolder_with_same_name (win);
1148                 if (dimmed)
1149                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_copy_target_error"));
1150         }
1151
1152         return dimmed;
1153 }
1154
1155
1156 gboolean
1157 modest_ui_dimming_rules_on_select_all (ModestWindow *win, gpointer user_data)
1158 {
1159         ModestDimmingRule *rule = NULL;
1160         gboolean dimmed = FALSE;
1161         GtkWidget *focused = NULL;
1162
1163         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1164         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1165         rule = MODEST_DIMMING_RULE (user_data);
1166
1167         focused = gtk_window_get_focus (GTK_WINDOW (win));
1168
1169         /* Main window dimming rules */
1170         if (!dimmed && MODEST_IS_MAIN_WINDOW (win))
1171                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1172
1173         if (!dimmed && MODEST_IS_MAIN_WINDOW (win))
1174                 dimmed = _header_view_is_all_selected (MODEST_MAIN_WINDOW(win));
1175
1176         if (!dimmed && GTK_IS_ENTRY (focused)) {
1177                 const gchar *current_text;
1178                 current_text = gtk_entry_get_text (GTK_ENTRY (focused));
1179                 dimmed = ((current_text == NULL) || (current_text[0] == '\0'));
1180         }
1181
1182         if (!dimmed && GTK_IS_TEXT_VIEW (focused)) {
1183                 GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
1184                 dimmed = (gtk_text_buffer_get_char_count (buffer) < 1);
1185         }
1186
1187         if (dimmed && MODEST_IS_ATTACHMENTS_VIEW (focused))
1188                 dimmed = FALSE;
1189         return dimmed;
1190 }
1191
1192 gboolean
1193 modest_ui_dimming_rules_on_view_attachments (ModestWindow *win, gpointer user_data)
1194 {
1195         ModestDimmingRule *rule = NULL;
1196         gboolean dimmed = FALSE;
1197
1198         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1199         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1200         rule = MODEST_DIMMING_RULE (user_data);
1201
1202         /* Check dimmed rule */
1203         if (!dimmed)
1204                 dimmed = _invalid_attach_selected (win, TRUE, TRUE, FALSE, rule);
1205
1206         if (!dimmed) {
1207                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1208                 if (dimmed) {
1209                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1210                 }
1211         }
1212
1213         return dimmed;
1214 }
1215
1216 gboolean
1217 modest_ui_dimming_rules_on_save_attachments (ModestWindow *win, gpointer user_data)
1218 {
1219         ModestDimmingRule *rule = NULL;
1220         gboolean dimmed = FALSE;
1221
1222         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1223         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1224         rule = MODEST_DIMMING_RULE (user_data);
1225
1226         /* Check dimmed rule */
1227         if (!dimmed)
1228                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, FALSE, rule);
1229
1230         if (!dimmed) {
1231                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1232                 if (dimmed) {
1233                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1234                 }
1235         }
1236
1237         return dimmed;
1238 }
1239
1240 gboolean
1241 modest_ui_dimming_rules_on_remove_attachments (ModestWindow *win, gpointer user_data)
1242 {
1243         ModestDimmingRule *rule = NULL;
1244         const DimmedState *state = NULL;
1245         gboolean dimmed = FALSE;
1246
1247         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1248         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1249         rule = MODEST_DIMMING_RULE (user_data);
1250         state = modest_window_get_dimming_state (win);
1251
1252         /* Check in main window if there's only one message selected */
1253         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1254                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW (win), TRUE, rule);
1255         }
1256
1257         /* Check in view window if there's any attachment selected */
1258         if (!dimmed && MODEST_IS_MSG_VIEW_WINDOW (win)) {
1259                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, TRUE, NULL);
1260                 if (dimmed)
1261                         modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1262         }
1263
1264         /* Messages as attachments could not be removed */
1265         if (!dimmed && MODEST_IS_MSG_VIEW_WINDOW (win)) {
1266                 TnyList *attachments;
1267                 TnyIterator *iter;
1268                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW (win));
1269                 if (attachments) {
1270                         iter = tny_list_create_iterator (attachments);
1271                         while (!tny_iterator_is_done (iter) && !dimmed) {
1272                                 TnyMimePart *mime_part = (TnyMimePart *)
1273                                         tny_iterator_get_current (iter);
1274                                 if (modest_tny_mime_part_is_msg (mime_part))
1275                                         dimmed = TRUE;
1276                                 g_object_unref (mime_part);
1277                                 tny_iterator_next (iter);
1278                         }
1279                         g_object_unref (iter);
1280                         g_object_unref (attachments);
1281                 }
1282         }
1283
1284         if (!dimmed) {
1285
1286                 dimmed = _selected_msg_sent_in_progress (win);
1287                 if (dimmed) {
1288                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1289                 }
1290         }
1291
1292         /* cannot purge in editable drafts nor pop folders */
1293         if (!dimmed) {
1294                 dimmed = _invalid_folder_for_purge (win, rule);
1295                 if (dimmed)
1296                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1297         }
1298
1299         /* Check if the selected message in main window has attachments */
1300         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1301                 dimmed = !(state->any_has_attachments);
1302                 if (dimmed)
1303                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1304         }
1305
1306         /* Check if all attachments are already purged */
1307         if (!dimmed) {
1308                 dimmed = _purged_attach_selected (win, TRUE, rule);
1309         }
1310
1311         /* Check if the message is already downloaded */
1312         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1313                 dimmed = !_msg_download_completed (MODEST_MAIN_WINDOW (win));
1314                 if (dimmed)
1315                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1316         }
1317
1318         return dimmed;
1319 }
1320
1321 gboolean
1322 modest_ui_dimming_rules_on_undo (ModestWindow *win, gpointer user_data)
1323 {
1324         ModestDimmingRule *rule = NULL;
1325         gboolean dimmed = FALSE;
1326
1327         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1328         rule = MODEST_DIMMING_RULE (user_data);
1329
1330         /* Check dimmed rule */
1331         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1332                 dimmed = _clipboard_is_empty (win);
1333                 if (dimmed)
1334                         modest_dimming_rule_set_notification (rule, "");
1335         }
1336
1337         if (!dimmed && MODEST_IS_MSG_EDIT_WINDOW (win)) {
1338                 dimmed = !modest_msg_edit_window_can_undo (MODEST_MSG_EDIT_WINDOW (win));
1339         }
1340
1341         return dimmed;
1342 }
1343
1344 gboolean
1345 modest_ui_dimming_rules_on_redo (ModestWindow *win, gpointer user_data)
1346 {
1347         ModestDimmingRule *rule = NULL;
1348         gboolean dimmed = FALSE;
1349
1350         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1351         rule = MODEST_DIMMING_RULE (user_data);
1352
1353         /* Check dimmed rule */
1354         if (!dimmed && MODEST_IS_MSG_EDIT_WINDOW (win)) {
1355                 dimmed = !modest_msg_edit_window_can_redo (MODEST_MSG_EDIT_WINDOW (win));
1356         }
1357
1358         return dimmed;
1359 }
1360
1361 gboolean
1362 modest_ui_dimming_rules_on_cut (ModestWindow *win, gpointer user_data)
1363 {
1364         ModestDimmingRule *rule = NULL;
1365         const DimmedState *state = NULL;
1366         gboolean dimmed = FALSE;
1367
1368         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1369         rule = MODEST_DIMMING_RULE (user_data);
1370         state = modest_window_get_dimming_state (win);
1371
1372         /* Check common dimming rules */
1373         if (!dimmed) {
1374                 dimmed = _invalid_clipboard_selected (win, rule);
1375         }
1376
1377         /* Check window specific dimming rules */
1378         if (MODEST_IS_MAIN_WINDOW (win)) {
1379                 /* Get focused widget */
1380                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1381
1382                 if (MODEST_IS_HEADER_VIEW (focused)) {
1383                         if (!dimmed) {
1384                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1385                                 if (dimmed)
1386                                         modest_dimming_rule_set_notification (rule, "");
1387                         }
1388                         if (!dimmed) {
1389                                 dimmed = _selected_msg_sent_in_progress (win);
1390                                 if (dimmed)
1391                                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1392                         }
1393                         if (!dimmed) {
1394                                 dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
1395                                 if(dimmed)
1396                                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1397                         }
1398                 }
1399                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1400                         TnyFolderType types[3];
1401
1402                         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1403                         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1404                         types[2] = TNY_FOLDER_TYPE_SENT;
1405
1406                         /* Apply folder rules */
1407                         if (!dimmed) {
1408                                 dimmed = _selected_folder_not_deletable (MODEST_MAIN_WINDOW(win));
1409                                 if (dimmed)
1410                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1411                         }
1412                         if (!dimmed) {
1413                                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
1414                                 if (dimmed)
1415                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1416                         }
1417                         if (!dimmed) {
1418                                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1419                                 if (dimmed)
1420                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1421                         }
1422                 }
1423         }
1424
1425         return dimmed;
1426 }
1427
1428 gboolean
1429 modest_ui_dimming_rules_on_copy (ModestWindow *win, gpointer user_data)
1430 {
1431         ModestDimmingRule *rule = NULL;
1432         const DimmedState *state = NULL;
1433         gboolean dimmed = FALSE;
1434
1435         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1436         rule = MODEST_DIMMING_RULE (user_data);
1437         state = modest_window_get_dimming_state (win);
1438
1439         /* Check common dimming rules */
1440         if (!dimmed) {
1441                 dimmed = _invalid_clipboard_selected (win, rule);
1442         }
1443
1444         /* Check window specific dimming rules */
1445         if (MODEST_IS_MAIN_WINDOW (win)) {
1446                 /* Get focused widget */
1447                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1448
1449                 if (MODEST_IS_HEADER_VIEW (focused)) {
1450                         if (!dimmed) {
1451                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1452                                 if (dimmed)
1453                                         modest_dimming_rule_set_notification (rule, "");
1454                         }
1455                         if (!dimmed) {
1456                                 dimmed = _selected_msg_sent_in_progress (win);
1457                                 if (dimmed)
1458                                         modest_dimming_rule_set_notification (rule, _(""));
1459                         }
1460                         if (!dimmed) {
1461                                 dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
1462                                 if(dimmed)
1463                                         modest_dimming_rule_set_notification (rule, _(""));
1464                         }
1465                 }
1466                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1467                         TnyFolderType types[3];
1468
1469                         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1470                         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1471                         types[2] = TNY_FOLDER_TYPE_SENT;
1472
1473                         if (!dimmed) {
1474                                 dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
1475                                 if (dimmed)
1476                                         modest_dimming_rule_set_notification (rule, _(""));
1477                         }
1478                         if (!dimmed) {
1479                                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1480                                 if (dimmed)
1481                                         modest_dimming_rule_set_notification (rule, _(""));
1482                         }
1483                 }
1484         }
1485
1486         return dimmed;
1487 }
1488
1489 gboolean
1490 modest_ui_dimming_rules_on_set_style (ModestWindow *win, gpointer user_data)
1491 {
1492         ModestDimmingRule *rule = NULL;
1493         const DimmedState *state = NULL;
1494         gboolean dimmed = FALSE;
1495
1496         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1497         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1498         rule = MODEST_DIMMING_RULE (user_data);
1499         state = modest_window_get_dimming_state (win);
1500
1501
1502         /* Check common dimming rules */
1503         if (!dimmed) {
1504                 ModestMsgEditFormat format;
1505                 format = modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
1506
1507                 dimmed = (format != MODEST_MSG_EDIT_FORMAT_HTML);
1508                 if (dimmed)
1509                         modest_dimming_rule_set_notification (rule, _("mcen_ib_item_unavailable_plaintext"));
1510         }
1511
1512         if (!dimmed) {
1513                 GtkWidget *body;
1514                 body = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1515                                                                 MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1516
1517                 dimmed = ((body == NULL)||(!gtk_widget_is_focus (body)));
1518                 if (dimmed)
1519                         modest_dimming_rule_set_notification (rule, _("mcen_ib_move_cursor_to_message"));
1520         }
1521
1522
1523         return dimmed;
1524 }
1525
1526 gboolean
1527 modest_ui_dimming_rules_on_zoom (ModestWindow *win, gpointer user_data)
1528 {
1529         ModestDimmingRule *rule = NULL;
1530         const DimmedState *state = NULL;
1531         gboolean dimmed = FALSE;
1532
1533         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1534         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1535         rule = MODEST_DIMMING_RULE (user_data);
1536         state = modest_window_get_dimming_state (win);
1537
1538         if (!dimmed) {
1539                 GtkWidget *body;
1540                 body = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1541                                                                 MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1542
1543                 dimmed = ((body == NULL)||(!gtk_widget_is_focus (body)));
1544                 if (dimmed)
1545                         modest_dimming_rule_set_notification (rule, _("mcen_ib_move_cursor_to_message"));
1546         }
1547
1548
1549         return dimmed;
1550 }
1551
1552 gboolean
1553 modest_ui_dimming_rules_on_editor_paste (ModestWindow *win, gpointer user_data)
1554 {
1555         ModestDimmingRule *rule = NULL;
1556         const DimmedState *state = NULL;
1557         gboolean dimmed = FALSE;
1558         GtkWidget *focused = NULL;
1559
1560         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1561         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1562         rule = MODEST_DIMMING_RULE (user_data);
1563         state = modest_window_get_dimming_state (win);
1564
1565         focused = gtk_window_get_focus (GTK_WINDOW (win));
1566
1567         if (!dimmed) {
1568                 dimmed = MODEST_IS_ATTACHMENTS_VIEW (focused);
1569         }
1570
1571         if (!dimmed) {
1572                 dimmed = GTK_IS_TOGGLE_BUTTON (focused);
1573         }
1574
1575         if (!dimmed) {
1576                 ModestEmailClipboard *e_clipboard = modest_runtime_get_email_clipboard ();
1577                 const gchar *clipboard_text = modest_msg_edit_window_get_clipboard_text (MODEST_MSG_EDIT_WINDOW (win));
1578
1579                 dimmed = modest_email_clipboard_cleared (e_clipboard) &&
1580                   ((clipboard_text == NULL) || (clipboard_text[0] == '\0'));
1581         }
1582
1583         return dimmed;
1584 }
1585
1586 gboolean
1587 modest_ui_dimming_rules_on_editor_remove_attachment (ModestWindow *win, gpointer user_data)
1588 {
1589         ModestDimmingRule *rule = NULL;
1590         const DimmedState *state = NULL;
1591         gboolean dimmed = FALSE;
1592
1593         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1594         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1595         rule = MODEST_DIMMING_RULE (user_data);
1596         state = modest_window_get_dimming_state (win);
1597
1598         if (!dimmed) {
1599                 TnyList *selected_attachments = NULL;
1600                 gint n_att_selected = 0;
1601                 GtkWidget *attachments_view;
1602                 attachments_view = modest_msg_edit_window_get_child_widget (
1603                         MODEST_MSG_EDIT_WINDOW (win),
1604                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_ATTACHMENTS);
1605
1606                 selected_attachments = modest_attachments_view_get_selection (
1607                         MODEST_ATTACHMENTS_VIEW (attachments_view));
1608                 n_att_selected = tny_list_get_length (selected_attachments);
1609                 g_object_unref (selected_attachments);
1610
1611                 dimmed = (n_att_selected < 1);
1612         }
1613
1614         return dimmed;
1615 }
1616
1617 gboolean
1618 modest_ui_dimming_rules_on_send (ModestWindow *win, gpointer user_data)
1619 {
1620         ModestDimmingRule *rule = NULL;
1621         const DimmedState *state = NULL;
1622         gboolean dimmed = FALSE;
1623
1624         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1625         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1626         rule = MODEST_DIMMING_RULE (user_data);
1627         state = modest_window_get_dimming_state (win);
1628
1629         if (!dimmed) {
1630                 GtkWidget *subject_field, *body_field;
1631                 GtkTextBuffer *body_buffer;
1632                 const gchar *subject = NULL;
1633                 body_field = modest_msg_edit_window_get_child_widget (
1634                         MODEST_MSG_EDIT_WINDOW (win),
1635                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1636                 subject_field = modest_msg_edit_window_get_child_widget (
1637                         MODEST_MSG_EDIT_WINDOW (win),
1638                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_SUBJECT);
1639                 body_buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (body_field));
1640                 subject = gtk_entry_get_text (GTK_ENTRY (subject_field));
1641
1642                 dimmed = (subject == NULL || subject[0] == '\0');
1643                 if (dimmed)
1644                         modest_dimming_rule_set_notification (rule, _("mcen_ib_subject_not_modified"));
1645         }
1646
1647         if (!dimmed) {
1648                 GtkWidget *to_field, *cc_field, *bcc_field;
1649                 GtkTextBuffer * to_buffer, *cc_buffer, *bcc_buffer;
1650                 cc_field = modest_msg_edit_window_get_child_widget (
1651                         MODEST_MSG_EDIT_WINDOW (win),
1652                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_CC);
1653                 to_field = modest_msg_edit_window_get_child_widget (
1654                         MODEST_MSG_EDIT_WINDOW (win),
1655                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_TO);
1656                 bcc_field = modest_msg_edit_window_get_child_widget (
1657                         MODEST_MSG_EDIT_WINDOW (win),
1658                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BCC);
1659                 to_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (to_field));
1660                 cc_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (cc_field));
1661                 bcc_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (bcc_field));
1662
1663                 dimmed = ((gtk_text_buffer_get_char_count (to_buffer) +
1664                            gtk_text_buffer_get_char_count (cc_buffer) +
1665                            gtk_text_buffer_get_char_count (bcc_buffer)) == 0);
1666                 if (dimmed)
1667                         modest_dimming_rule_set_notification (rule, _("mcen_ib_add_recipients_first"));
1668         }
1669
1670         return dimmed;
1671 }
1672
1673 gboolean
1674 modest_ui_dimming_rules_on_view_previous (ModestWindow *win, gpointer user_data)
1675 {
1676         ModestDimmingRule *rule = NULL;
1677         gboolean dimmed = FALSE;
1678
1679         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1680         rule = MODEST_DIMMING_RULE (user_data);
1681
1682         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1683
1684         /* Check dimmed rule */
1685         if (!dimmed) {
1686                 dimmed = _transfer_mode_enabled (win);
1687                 if (dimmed)
1688                         modest_dimming_rule_set_notification (
1689                                         rule, _("mail_ib_notavailable_downloading"));
1690         }
1691         if (!dimmed) {
1692                 dimmed = modest_msg_view_window_first_message_selected (
1693                                 MODEST_MSG_VIEW_WINDOW(win));
1694                 modest_dimming_rule_set_notification (rule, NULL);
1695         }
1696
1697         return dimmed;
1698 }
1699
1700 gboolean
1701 modest_ui_dimming_rules_on_view_next (ModestWindow *win, gpointer user_data)
1702 {
1703         ModestDimmingRule *rule = NULL;
1704         gboolean dimmed = FALSE;
1705
1706         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1707         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1708         rule = MODEST_DIMMING_RULE (user_data);
1709
1710         /* Check dimmed rule */
1711         if (!dimmed) {
1712                 dimmed = _transfer_mode_enabled (win);
1713                 if (dimmed)
1714                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1715         }
1716         if (!dimmed) {
1717                 dimmed = modest_msg_view_window_last_message_selected (MODEST_MSG_VIEW_WINDOW (win));
1718                 modest_dimming_rule_set_notification (rule, NULL);
1719         }
1720
1721         return dimmed;
1722 }
1723
1724
1725 gboolean
1726 modest_ui_dimming_rules_on_tools_smtp_servers (ModestWindow *win, gpointer user_data)
1727 {
1728         const gboolean dimmed =
1729                 !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
1730                         TRUE);
1731
1732         return dimmed;
1733 }
1734
1735 gboolean
1736 modest_ui_dimming_rules_on_cancel_sending (ModestWindow *win, gpointer user_data)
1737 {
1738         ModestDimmingRule *rule = NULL;
1739         TnyFolderType types[1];
1740         const DimmedState *state = NULL;
1741         gboolean dimmed = FALSE;
1742
1743         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1744         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1745         rule = MODEST_DIMMING_RULE (user_data);
1746         state = modest_window_get_dimming_state (win);
1747
1748         types[0] = TNY_FOLDER_TYPE_OUTBOX;
1749
1750         /* Check dimmed rules */
1751         if (!dimmed) {
1752                 dimmed = !_selected_folder_is_any_of_type (win, types, 1);
1753                 if (dimmed)
1754                         modest_dimming_rule_set_notification (rule, "");
1755         }
1756         if (!dimmed) {
1757                 dimmed = !_sending_in_progress (win);
1758                 if (dimmed)
1759                         modest_dimming_rule_set_notification (rule, "");
1760         }
1761
1762         return dimmed;
1763 }
1764
1765 gboolean
1766 modest_ui_dimming_rules_on_csm_cancel_sending (ModestWindow *win, gpointer user_data)
1767 {
1768         ModestDimmingRule *rule = NULL;
1769         TnyFolderType types[1];
1770         const DimmedState *state = NULL;
1771         gboolean dimmed = FALSE;
1772
1773         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1774         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1775         rule = MODEST_DIMMING_RULE (user_data);
1776         state = modest_window_get_dimming_state (win);
1777
1778         types[0] = TNY_FOLDER_TYPE_OUTBOX;
1779
1780         /* Check dimmed rules */
1781         if (!dimmed) {
1782                 dimmed = !_selected_folder_is_any_of_type (win, types, 1);
1783                 if (dimmed)
1784                         modest_dimming_rule_set_notification (rule, "");
1785         }
1786         if (!dimmed) {
1787                 dimmed = !_sending_in_progress (win);
1788                 if (dimmed)
1789                         modest_dimming_rule_set_notification (rule, "");
1790         }
1791
1792         return dimmed;
1793 }
1794
1795 gboolean
1796 modest_ui_dimming_rules_on_send_receive (ModestWindow *win, gpointer user_data)
1797 {
1798         ModestDimmingRule *rule = NULL;
1799         gboolean dimmed = FALSE;
1800
1801         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1802         rule = MODEST_DIMMING_RULE (user_data);
1803
1804         /* Check dimmed rule */
1805         if (!dimmed) {
1806                 dimmed = !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
1807                                                           TRUE);
1808                 if (dimmed)
1809                         modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
1810         }
1811
1812         return dimmed;
1813 }
1814
1815 gboolean
1816 modest_ui_dimming_rules_on_send_receive_all (ModestWindow *win, gpointer user_data)
1817 {
1818         ModestDimmingRule *rule = NULL;
1819         gboolean dimmed = FALSE;
1820
1821         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1822         rule = MODEST_DIMMING_RULE (user_data);
1823
1824         /* Check dimmed rule */
1825         if (!dimmed) {
1826                 GSList *account_names = modest_account_mgr_account_names (modest_runtime_get_account_mgr (), TRUE);
1827                 if (g_slist_length (account_names) <= 1)
1828                         dimmed = TRUE;
1829                 if (dimmed)
1830                         modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
1831
1832                 modest_account_mgr_free_account_names (account_names);
1833         }
1834
1835         return dimmed;
1836 }
1837
1838 gboolean
1839 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
1840 {
1841         ModestDimmingRule *rule = NULL;
1842         gboolean dimmed = FALSE;
1843         GtkWidget *focused = NULL;
1844
1845         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1846         rule = MODEST_DIMMING_RULE (user_data);
1847         focused = gtk_window_get_focus (GTK_WINDOW (win));
1848
1849         dimmed = !focused;
1850
1851         if (!dimmed) {
1852                 gchar *selection = NULL;
1853                 if (GTK_IS_TEXT_VIEW (focused)) {
1854                         GtkTextIter start, end;
1855                         GtkTextBuffer *buffer = NULL;
1856                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
1857                         if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end)) {
1858                                 selection = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
1859                         }
1860                 } else if (GTK_IS_LABEL (focused)) {
1861                         selection = modest_text_utils_label_get_selection (GTK_LABEL (focused));
1862                 } else {
1863                         gboolean do_check = TRUE;
1864                         GtkClipboard *clipboard;
1865                         if (GTK_IS_HTML (focused)) {
1866                                 const gchar *sel;
1867                                 int len = -1;
1868                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
1869                                 do_check = !((sel == NULL) || (sel[0] == '\0'));
1870                         } else if (MODEST_IS_ATTACHMENTS_VIEW (focused)) {
1871                                 do_check = FALSE;
1872                         }
1873                         g_warning ("FOCUSED %s", focused?G_OBJECT_TYPE_NAME (focused):"NULL");
1874                         if (do_check) {
1875                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
1876                                 selection = gtk_clipboard_wait_for_text (clipboard);
1877                         } else {
1878                                 selection = NULL;
1879                         }
1880                 }
1881                 dimmed = !((selection != NULL) && (modest_text_utils_validate_recipient (selection, NULL)));
1882         }
1883
1884         return dimmed;
1885 }
1886
1887 /* *********************** static utility functions ******************** */
1888
1889
1890 static gboolean
1891 _selected_folder_not_writeable (ModestMainWindow *win,
1892                                 gboolean for_paste)
1893 {
1894         GtkWidget *folder_view = NULL;
1895         TnyFolderStore *parent_folder = NULL;
1896         ModestEmailClipboard *clipboard = NULL;
1897         ModestTnyFolderRules rules;
1898         gboolean is_local_acc = FALSE;
1899         gboolean xfer_folders = FALSE;
1900         gboolean result = FALSE;
1901
1902         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1903
1904         /* Get folder view */
1905         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1906                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1907         /* If no folder view, always dimmed */
1908         if (!folder_view)
1909                 return TRUE;
1910
1911         /* Get selected folder as parent of new folder to create */
1912         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1913         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1914                 /* If it's the local account and its transfering folders, then do not dim */
1915                 if (TNY_IS_ACCOUNT (parent_folder)) {
1916                         is_local_acc = modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder));
1917                         if (for_paste) {
1918                                 clipboard = modest_runtime_get_email_clipboard ();
1919                                 xfer_folders = modest_email_clipboard_folder_copied (clipboard);
1920                         }
1921                 }
1922
1923                 if (for_paste)
1924                         result = !(is_local_acc && xfer_folders);
1925                 else
1926                         result = !is_local_acc;
1927                 goto frees;
1928         }
1929
1930         /* Check dimmed rule */
1931         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1932         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
1933
1934         /* free */
1935  frees:
1936         if (parent_folder != NULL)
1937                 g_object_unref (parent_folder);
1938
1939         return result;
1940 }
1941
1942 static gboolean
1943 _selected_folder_not_deletable (ModestMainWindow *win)
1944 {
1945         GtkWidget *folder_view = NULL;
1946         TnyFolderStore *parent_folder = NULL;
1947         ModestTnyFolderRules rules;
1948         gboolean result = FALSE;
1949
1950         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1951
1952         /* Get folder view */
1953         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1954                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1955         /* If no folder view, always dimmed */
1956         if (!folder_view)
1957                 return TRUE;
1958
1959         /* Get selected folder as parent of new folder to create */
1960         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1961         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1962                 result = TRUE;
1963                 goto frees;
1964         }
1965
1966         /* Check dimmed rule */
1967         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1968         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_DELETABLE;
1969
1970         /* free */
1971  frees:
1972         if (parent_folder != NULL)
1973                 g_object_unref (parent_folder);
1974
1975         return result;
1976 }
1977
1978 static gboolean
1979 _selected_folder_not_moveable (ModestMainWindow *win)
1980 {
1981         GtkWidget *folder_view = NULL;
1982         TnyFolderStore *parent_folder = NULL;
1983         ModestTnyFolderRules rules;
1984         gboolean result = FALSE;
1985
1986         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1987
1988         /* Get folder view */
1989         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1990                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1991         /* If no folder view, always dimmed */
1992         if (!folder_view)
1993                 return TRUE;
1994
1995         /* Get selected folder as parent of new folder to create */
1996         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1997         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1998                 result = TRUE;
1999                 goto frees;
2000         }
2001
2002         /* Check dimmed rule */
2003         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2004         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE;
2005
2006         /* free */
2007  frees:
2008         if (parent_folder != NULL)
2009                 g_object_unref (parent_folder);
2010
2011         return result;
2012 }
2013
2014 static gboolean
2015 _selected_folder_not_renameable (ModestMainWindow *win)
2016 {
2017         GtkWidget *folder_view = NULL;
2018         TnyFolderStore *parent_folder = NULL;
2019         ModestTnyFolderRules rules;
2020         gboolean result = FALSE;
2021
2022         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2023
2024         /* Get folder view */
2025         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2026                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2027         /* If no folder view, always dimmed */
2028         if (!folder_view)
2029                 return TRUE;
2030
2031         /* Get selected folder as parent of new folder to create */
2032         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2033         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
2034                 result = TRUE;
2035                 goto frees;
2036         }
2037
2038         /* Check dimmed rule */
2039         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
2040         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_RENAMEABLE;
2041
2042         /* free */
2043  frees:
2044         if (parent_folder != NULL)
2045                 g_object_unref (parent_folder);
2046
2047         return result;
2048 }
2049
2050 static gboolean
2051 _selected_folder_is_root_or_inbox (ModestMainWindow *win)
2052 {
2053         TnyFolderType types[2];
2054         gboolean result = FALSE;
2055
2056         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2057
2058         types[0] = TNY_FOLDER_TYPE_ROOT;
2059         types[1] = TNY_FOLDER_TYPE_INBOX;
2060
2061         /* Check folder type */
2062         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 2);
2063
2064         /* Check pop and MMC accounts */
2065         if (!result) {
2066                 result = _selected_folder_is_MMC_or_POP_root (win);
2067         }
2068
2069         return result;
2070 }
2071
2072
2073 static gboolean
2074 _selected_folder_is_root (ModestMainWindow *win)
2075 {
2076         TnyFolderType types[1];
2077         gboolean result = FALSE;
2078
2079         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2080
2081         /* All accounts are root items: */
2082         GtkWidget *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                 gboolean is_account = FALSE;
2086                 TnyFolderStore *folder_store =
2087                         modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2088                 if (folder_store) {
2089                         is_account = TNY_IS_ACCOUNT (folder_store);
2090                         g_object_unref (folder_store);
2091                         folder_store = NULL;
2092                 }
2093
2094                 if (is_account)
2095                         return TRUE;
2096         }
2097
2098         /* Try something more precise: */
2099         types[0] = TNY_FOLDER_TYPE_ROOT;
2100
2101         /* Check folder type */
2102         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 1);
2103
2104         /* Check pop and MMC accounts */
2105         if (!result) {
2106                 result = _selected_folder_is_MMC_or_POP_root (win);
2107         }
2108
2109         return result;
2110 }
2111
2112 static gboolean
2113 _selected_folder_is_MMC_or_POP_root (ModestMainWindow *win)
2114 {
2115         GtkWidget *folder_view = NULL;
2116         TnyFolderStore *parent_folder = NULL;
2117         gboolean result = FALSE;
2118
2119         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2120                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2121         if (!folder_view)
2122                 return FALSE;
2123
2124         /* Get selected folder as parent of new folder to create */
2125         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2126         if (!parent_folder)
2127                 return TRUE;
2128
2129         if (TNY_IS_ACCOUNT (parent_folder)) {
2130                 /* If it's the local account then do not dim */
2131                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
2132                         result = FALSE;
2133                 } else {
2134                                 /* If it's the MMC root folder then dim it */
2135                         if (!strcmp (tny_account_get_id (TNY_ACCOUNT (parent_folder)), MODEST_MMC_ACCOUNT_ID)) {
2136                                         result = TRUE;
2137                         } else {
2138                                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
2139                                 /* If it's POP then dim */
2140                                 result = (modest_protocol_info_get_transport_store_protocol (proto_str) ==
2141                                                   MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
2142                         }
2143                 }
2144         }
2145         g_object_unref (parent_folder);
2146
2147         return result;
2148 }
2149
2150 static gboolean
2151 _header_view_is_all_selected (ModestMainWindow *win)
2152 {
2153         const DimmedState *state = NULL;
2154
2155         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2156
2157         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2158
2159         return state->all_selected;
2160 }
2161
2162 static gboolean
2163 _selected_folder_is_empty (ModestMainWindow *win)
2164 {
2165         GtkWidget *folder_view = NULL, *header_view = NULL;
2166         TnyFolderStore *folder = NULL;
2167         gboolean result = FALSE;
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
2175         header_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2176                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_HEADER_VIEW);
2177
2178         /* If no folder view, always dimmed */
2179         if (!folder_view || !header_view)
2180                 return TRUE;
2181
2182         /* Get selected folder as parent of new folder to create */
2183         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2184         if (!(folder && TNY_IS_FOLDER(folder))) {
2185                 if (folder)
2186                         g_object_unref (folder);
2187                 return TRUE;
2188         }
2189
2190         /* Check folder type */
2191         if (modest_header_view_is_empty (MODEST_HEADER_VIEW (header_view)) ||
2192             tny_folder_get_all_count (TNY_FOLDER (folder)) == 0)
2193                 result = TRUE;
2194
2195         /* free */
2196         g_object_unref (folder);
2197
2198         return result;
2199 }
2200
2201 static gboolean
2202 _folder_view_has_focus (ModestWindow *win)
2203 {
2204         GtkWidget *folder_view = NULL;
2205
2206         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2207
2208         /* Get folder view */
2209         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2210                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2211         if (!folder_view)
2212                 return FALSE;
2213
2214         if (gtk_widget_is_focus(folder_view))
2215                 return TRUE;
2216
2217         return FALSE;
2218 }
2219
2220 static gboolean
2221 _selected_folder_is_same_as_source (ModestWindow *win)
2222 {
2223         ModestEmailClipboard *clipboard = NULL;
2224         GtkWidget *folder_view = NULL;
2225         TnyFolderStore *folder = NULL;
2226         gboolean result = FALSE;
2227
2228         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2229
2230         /* Get folder view */
2231         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2232                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2233         if (!folder_view)
2234                 return FALSE;
2235
2236         /* Get selected folder as destination folder */
2237         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2238         if (!(folder && TNY_IS_FOLDER(folder))) {
2239                 result = FALSE;
2240                 goto frees;
2241         }
2242
2243         /* Check clipboard is cleared */
2244         clipboard = modest_runtime_get_email_clipboard ();
2245         if (modest_email_clipboard_cleared (clipboard)) {
2246                 result = FALSE;
2247                 goto frees;
2248         }
2249
2250         /* Check source folder */
2251         result = modest_email_clipboard_check_source_folder (clipboard, TNY_FOLDER (folder));
2252
2253         /* Free */
2254  frees:
2255         g_object_unref (folder);
2256
2257         return result;
2258 }
2259
2260 static gboolean
2261 _selected_folder_is_any_of_type (ModestWindow *win,
2262                                  TnyFolderType types[],
2263                                  guint ntypes)
2264 {
2265         GtkWidget *folder_view = NULL;
2266         TnyFolderStore *folder = NULL;
2267         TnyFolderType folder_type;
2268         guint i=0;
2269         gboolean result = FALSE;
2270
2271         /*Get current folder */
2272         if (MODEST_IS_MAIN_WINDOW(win)) {
2273
2274                 /* Get folder view */
2275                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2276                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2277                 /* If no folder view, always dimmed */
2278                 if (!folder_view)
2279                         return FALSE;
2280
2281                 /* Get selected folder as parent of new folder to create */
2282                 folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2283
2284                 if (!(folder && TNY_IS_FOLDER(folder))) {
2285                         if (folder)
2286                                 g_object_unref (folder);
2287                         return FALSE;
2288                 }
2289
2290                 /* Check folder type */
2291                 result = _folder_is_any_of_type (TNY_FOLDER(folder), types, ntypes);
2292         }
2293         else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2294                 folder_type = modest_msg_view_window_get_folder_type (MODEST_MSG_VIEW_WINDOW (win));
2295                 for (i=0; i < ntypes; i++) {
2296                         result = result || folder_type == types[i];
2297                 }
2298         }
2299
2300
2301         /* free */
2302         if (folder)
2303                 g_object_unref (folder);
2304
2305         return result;
2306 }
2307
2308 static gboolean
2309 _folder_is_any_of_type (TnyFolder *folder,
2310                         TnyFolderType types[],
2311                         guint ntypes)
2312 {
2313         TnyFolderType folder_type;
2314         gboolean result = FALSE;
2315         guint i;
2316
2317         g_return_val_if_fail (TNY_IS_FOLDER(folder), FALSE);
2318
2319         /* Get folder type */
2320         folder_type = modest_tny_folder_guess_folder_type (folder);
2321         if (folder_type == TNY_FOLDER_TYPE_INVALID)
2322                 g_warning ("%s: BUG: TNY_FOLDER_TYPE_INVALID", __FUNCTION__);
2323
2324         /* Check foler type */
2325         for (i=0; i < ntypes; i++) {
2326                 result = result || folder_type == types[i];
2327         }
2328
2329         return result;
2330 }
2331
2332 static gboolean
2333 _clipboard_is_empty (ModestWindow *win)
2334 {
2335         gboolean result = FALSE;
2336
2337         if (MODEST_IS_MAIN_WINDOW (win)) {
2338                 ModestEmailClipboard *clipboard = NULL;
2339                 clipboard = modest_runtime_get_email_clipboard ();
2340                 if (modest_email_clipboard_cleared (clipboard))
2341                  result = TRUE;
2342         }
2343
2344         return result;
2345 }
2346
2347 static gboolean
2348 _invalid_clipboard_selected (ModestWindow *win,
2349                              ModestDimmingRule *rule)
2350 {
2351         const DimmedState *state = NULL;
2352         gboolean result = FALSE;
2353         GtkWidget *focused = NULL;
2354
2355         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2356         state = modest_window_get_dimming_state (win);
2357         /* Get focuesed widget */
2358         focused = gtk_window_get_focus (GTK_WINDOW (win));
2359
2360         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
2361                 gboolean has_selection = FALSE;
2362                 if (GTK_IS_TEXT_VIEW (focused)) {
2363                         GtkTextBuffer *buffer = NULL;
2364                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2365                         has_selection = modest_text_utils_buffer_selection_is_valid (buffer);
2366                 } else if (GTK_IS_EDITABLE (focused)) {
2367                         has_selection = gtk_editable_get_selection_bounds (GTK_EDITABLE (focused), NULL, NULL);
2368                 }
2369                 result = !has_selection;
2370         } else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2371                 if (focused) {
2372                         MODEST_DEBUG_BLOCK (g_message ("FOCUSED %s", g_type_name (G_TYPE_FROM_INSTANCE (focused))););
2373                         if (GTK_IS_LABEL (focused) &&
2374                             !gtk_label_get_selection_bounds (GTK_LABEL (focused), NULL, NULL)) {
2375                                 result = TRUE;
2376                         } else if (GTK_IS_TEXT_VIEW (focused)) {
2377                                 GtkTextBuffer *buffer;
2378                                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2379                                 result = !gtk_text_buffer_get_has_selection (buffer);
2380                         } else if (GTK_IS_HTML (focused)) {
2381                                 const gchar *sel;
2382                                 int len = -1;
2383                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
2384                                 result = ((sel == NULL) || (sel[0] == '\0'));
2385                         } else if (MODEST_IS_ATTACHMENTS_VIEW (focused)) {
2386                                 result = TRUE;
2387                         } else {
2388                                 GtkClipboard *clipboard;
2389                                 gchar *selection;
2390
2391                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
2392                                 /* Get clipboard selection*/
2393                                 selection = gtk_clipboard_wait_for_text (clipboard);
2394                                 /* Check dimming */
2395                                 result = (selection == NULL);
2396                                 g_free (selection);
2397                         }
2398                 } else {
2399                         result = TRUE;
2400                 }
2401
2402                 if (result)
2403                         modest_dimming_rule_set_notification (rule, "");
2404
2405         }
2406         else if (MODEST_IS_MAIN_WINDOW (win)) {
2407                 /* Check dimming */
2408                 result = state->n_selected == 0;
2409                 if (result)
2410                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2411         }
2412
2413         return result;
2414 }
2415
2416
2417 static gboolean
2418 _invalid_attach_selected (ModestWindow *win,
2419                           gboolean unique,
2420                           gboolean for_view,
2421                           gboolean for_remove,
2422                           ModestDimmingRule *rule)
2423 {
2424         TnyList *attachments;
2425         gint n_selected;
2426         TnyHeaderFlags flags;
2427         gboolean nested_attachments = FALSE;
2428         gboolean selected_messages = FALSE;
2429         const DimmedState *state = NULL;
2430         gboolean result = FALSE;
2431
2432         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2433         state = modest_window_get_dimming_state (win);
2434
2435         if (MODEST_IS_MAIN_WINDOW (win)) {
2436                 flags = TNY_HEADER_FLAG_ATTACHMENTS;
2437                 if (!result)
2438                         result = !state->any_has_attachments;
2439         }
2440         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2441
2442                 /* Get selected atachments */
2443                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2444                 n_selected = tny_list_get_length (attachments);
2445
2446                 /* Check unique */
2447                 if (!result) {
2448                         if (unique)
2449                                 result = n_selected != 1;
2450                         else
2451
2452                                 result = n_selected < 1;
2453                 }
2454
2455                 /* Check attached type (view operation not required) */
2456                 if (!result && !for_view)  {
2457                         TnyIterator *iter;
2458                         iter = tny_list_create_iterator (attachments);
2459                         while (!tny_iterator_is_done (iter) && !result) {
2460                                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2461                                 TnyList *nested_list = tny_simple_list_new ();
2462                                 if (!for_remove && modest_tny_mime_part_is_msg (mime_part)) {
2463                                         selected_messages = TRUE;
2464                                         result = TRUE;
2465                                 }
2466                                 tny_mime_part_get_parts (mime_part, nested_list);
2467                                 if (!for_remove && tny_list_get_length (nested_list) > 0) {
2468                                         nested_attachments = TRUE;
2469                                         result = TRUE;
2470                                 }
2471                                 g_object_unref (nested_list);
2472                                 g_object_unref (mime_part);
2473                                 tny_iterator_next (iter);
2474                         }
2475                         g_object_unref (iter);
2476                 }
2477
2478                 /* Set notifications */
2479                 if (result && rule != NULL) {
2480                         if (selected_messages) {
2481                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_save_attach_mail"));
2482                         } else if (nested_attachments) {
2483                                 modest_dimming_rule_set_notification (rule, _("FIXME:unable to save attachments with nested elements"));
2484                         } else if (n_selected == 0) {
2485                                 modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
2486                         } else if (unique) {
2487                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_display_more"));
2488                         }
2489                 }
2490
2491                 /* Free */
2492                 g_object_unref (attachments);
2493         }
2494
2495         return result;
2496 }
2497
2498 static gboolean
2499 _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule)
2500 {
2501         TnyList *attachments = NULL;
2502         TnyIterator *iter;
2503         gint purged = 0;
2504         gint n_attachments = 0;
2505         gboolean result = FALSE;
2506
2507         /* This should check if _all_ the attachments are already purged. If only some
2508          * of them are purged, then it does not cause dim as there's a confirmation dialog
2509          * for removing only local attachments */
2510
2511         /* Get selected atachments */
2512         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2513                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2514         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2515                 /* If we're in main window, we won't know if there are already purged attachments */
2516                 return FALSE;
2517         }
2518
2519         if (attachments == NULL)
2520                 return FALSE;
2521
2522         if (tny_list_get_length (attachments)) {
2523                 g_object_unref (attachments);
2524                 return FALSE;
2525         }
2526
2527         iter = tny_list_create_iterator (attachments);
2528         while (!tny_iterator_is_done (iter)) {
2529                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2530                 if (tny_mime_part_is_purged (mime_part)) {
2531                         purged++;
2532                 }
2533                 n_attachments++;
2534                 g_object_unref (mime_part);
2535                 tny_iterator_next (iter);
2536         }
2537         g_object_unref (iter);
2538
2539         /* Free */
2540         g_object_unref (attachments);
2541
2542         if (all)
2543                 result = (purged == n_attachments);
2544         else
2545                 result = (purged > 0);
2546
2547         /* This string no longer exists, refer to NB#75415 for more info
2548         if (result && (rule != NULL))
2549                 modest_dimming_rule_set_notification (rule, _("mail_ib_attachment_already_purged"));
2550         */
2551
2552         return result;
2553 }
2554
2555 static gboolean
2556 _invalid_msg_selected (ModestMainWindow *win,
2557                        gboolean unique,
2558                        ModestDimmingRule *rule)
2559 {
2560         GtkWidget *folder_view = NULL;
2561         const DimmedState *state = NULL;
2562         gboolean result = FALSE;
2563
2564         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2565         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (rule), FALSE);
2566         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2567
2568         /* Get folder view to check focus */
2569         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2570                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2571
2572         /* Check dimmed rule (TODO: check focus on widgets */
2573         if (!result) {
2574                 result = ((state->n_selected == 0 ) ||
2575                           (gtk_widget_is_focus (folder_view)));
2576                 if (result)
2577                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2578         }
2579         if (!result && unique) {
2580                 result = state->n_selected > 1;
2581                 if (result)
2582                         modest_dimming_rule_set_notification (rule, _("mcen_ib_select_one_message"));
2583         }
2584
2585         return result;
2586 }
2587
2588
2589 static gboolean
2590 _msg_download_in_progress (ModestWindow *win)
2591 {
2592         gboolean result = FALSE;
2593
2594         g_return_val_if_fail (MODEST_IS_WINDOW (win), FALSE);
2595
2596         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2597                 result = modest_msg_view_window_toolbar_on_transfer_mode (MODEST_MSG_VIEW_WINDOW(win));
2598         }
2599         else if (MODEST_IS_MAIN_WINDOW (win)) {
2600                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW(win));
2601         }
2602
2603         return result;
2604 }
2605
2606 static gboolean
2607 _msg_download_completed (ModestMainWindow *win)
2608 {
2609         const DimmedState *state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2610         return state->any_marked_as_cached;
2611 }
2612
2613 static void
2614 fill_list_of_caches (gpointer key, gpointer value, gpointer userdata)
2615 {
2616         GSList **send_queues = (GSList **) userdata;
2617         *send_queues = g_slist_prepend (*send_queues, value);
2618 }
2619
2620 static gboolean
2621 _selected_msg_sent_in_progress (ModestWindow *win)
2622 {
2623         const DimmedState *state = modest_window_get_dimming_state (win);
2624         return state->sent_in_progress;
2625 }
2626
2627
2628 static gboolean
2629 _sending_in_progress (ModestWindow *win)
2630 {
2631         GHashTable *send_queue_cache = NULL;
2632         ModestCacheMgr *cache_mgr = NULL;
2633         ModestTnySendQueue *send_queue = NULL;
2634         GSList *send_queues = NULL, *node = NULL;
2635         gboolean result = FALSE;
2636
2637         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW (win), FALSE);
2638
2639         /* Get send queue */
2640         cache_mgr = modest_runtime_get_cache_mgr ();
2641         send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
2642                                                        MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
2643
2644         g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
2645
2646         for (node = send_queues; node != NULL && !result; node = g_slist_next (node)) {
2647                 send_queue = MODEST_TNY_SEND_QUEUE (node->data);
2648
2649                 /* Check if send operation is in progress */
2650                 result = modest_tny_send_queue_sending_in_progress (send_queue);
2651         }
2652
2653         return result;
2654 }
2655
2656 static gboolean
2657 _invalid_folder_for_purge (ModestWindow *win,
2658                            ModestDimmingRule *rule)
2659 {
2660         TnyFolder *folder = NULL;
2661         TnyAccount *account = NULL;
2662         gboolean result = FALSE;
2663
2664         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2665
2666                 /* Get folder and account of message */
2667                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2668                 g_return_val_if_fail(msg != NULL, TRUE);
2669                 folder = tny_msg_get_folder (msg);
2670                 g_object_unref (msg);
2671                 if (folder == NULL) {
2672                         result = TRUE;
2673                         goto frees;
2674                 }
2675         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2676                 GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2677                                                                               MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2678                 if (!folder_view)
2679                         return FALSE;
2680                 folder = (TnyFolder *) modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view));
2681                 /* Could be a folder store */
2682                 if (folder == NULL || ! TNY_IS_FOLDER (folder))
2683                         goto frees;
2684         } else {
2685                 g_return_val_if_reached (FALSE);
2686         }
2687         account = modest_tny_folder_get_account (folder);
2688         if (account == NULL) goto frees;
2689
2690         /* Check account */
2691         if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (account))) {
2692                 TnyFolderType types[2];
2693                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
2694                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
2695
2696                 if (_selected_folder_is_any_of_type (win, types, 2)) {
2697                         result = TRUE;
2698                 }
2699         } else {
2700                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (account));
2701                 ModestTransportStoreProtocol proto;
2702                 proto = modest_protocol_info_get_transport_store_protocol (proto_str);
2703                 /* If it's a remote folder then dim */
2704                 if (proto == MODEST_PROTOCOL_STORE_POP || proto == MODEST_PROTOCOL_STORE_IMAP) {
2705                         result = TRUE;
2706                 }
2707         }
2708
2709 frees:
2710         if (folder != NULL)
2711                 g_object_unref (folder);
2712         if (account != NULL)
2713                 g_object_unref (account);
2714
2715         return result;
2716 }
2717
2718 static gboolean
2719 _transfer_mode_enabled (ModestWindow *win)
2720 {
2721         gboolean result = FALSE;
2722
2723         /* Check dimming */
2724         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2725                 result = modest_msg_view_window_transfer_mode_enabled (MODEST_MSG_VIEW_WINDOW (win));
2726         } else if (MODEST_IS_MAIN_WINDOW(win)) {
2727                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW (win));
2728         } else {
2729                 g_warning("_transfer_mode_enabled called with wrong window type");
2730         }
2731
2732         return result;
2733 }
2734
2735 static gboolean
2736 _selected_folder_has_subfolder_with_same_name (ModestWindow *win)
2737 {
2738         GtkWidget *folder_view = NULL;
2739         TnyFolderStore *folder = NULL;
2740         ModestEmailClipboard *clipboard = NULL;
2741         const gchar *folder_name = NULL;
2742         gboolean result = FALSE;
2743
2744         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
2745
2746         /*Get current parent folder */
2747         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2748                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2749         /* If no folder view, always dimmed */
2750         if (!folder_view) return FALSE;
2751
2752         /* Get selected folder as parent of new folder to create */
2753         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2754         if (!(folder && TNY_IS_FOLDER(folder))) goto frees;
2755
2756         /* get modest clipboard and source folder */
2757         clipboard = modest_runtime_get_email_clipboard ();
2758         folder_name = modest_email_clipboard_get_folder_name (clipboard);
2759         if (folder_name == NULL) goto frees;
2760
2761         /* Check source subfolders names */
2762         result = modest_tny_folder_has_subfolder_with_name (folder, folder_name,
2763                                                             TRUE);
2764
2765         /* Free */
2766  frees:
2767         if (folder != NULL)
2768                 g_object_unref (folder);
2769
2770
2771         return result;
2772 }
2773
2774 gboolean
2775 modest_ui_dimming_rules_on_save_to_drafts (ModestWindow *win,
2776                                            gpointer user_data)
2777 {
2778         ModestDimmingRule *rule = NULL;
2779         gboolean dimmed = FALSE;
2780
2781         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
2782         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2783         rule = MODEST_DIMMING_RULE (user_data);
2784
2785         /* Check dimmed rule */
2786         if (!dimmed) {
2787                 dimmed = !modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (win));
2788         }
2789
2790         return dimmed;
2791 }
2792
2793 gboolean
2794 modest_ui_dimming_rules_on_insert_image (ModestWindow *win,
2795                                          gpointer user_data)
2796 {
2797         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
2798
2799         ModestMsgEditFormat format =
2800           modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
2801
2802         return (format != MODEST_MSG_EDIT_FORMAT_HTML);
2803 }