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