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
1025         if (!dimmed) {
1026                 dimmed = _selected_msg_sent_in_progress (win);
1027                 if (dimmed)
1028                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_item"));
1029         }
1030         if (!dimmed) {
1031                 if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
1032                         /* The move_to button should be dimmed when viewing an attachment,
1033                          * but should be enabled when viewing a message from the list,
1034                          * or when viewing a search result.
1035                          */
1036                         if (!modest_msg_view_window_is_search_result (MODEST_MSG_VIEW_WINDOW(win))) {
1037                                 dimmed = !modest_msg_view_window_has_headers_model (MODEST_MSG_VIEW_WINDOW (win));
1038                         }
1039                 }
1040
1041                 if (dimmed)
1042                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_item"));
1043         }
1044
1045         return dimmed;
1046 }
1047
1048 gboolean
1049 modest_ui_dimming_rules_on_find_msg (ModestWindow *win, gpointer user_data)
1050 {
1051         ModestDimmingRule *rule = NULL;
1052         gboolean dimmed = FALSE;
1053
1054         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1055         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1056         rule = MODEST_DIMMING_RULE (user_data);
1057
1058         /* Check dimmed rule */
1059         if (!dimmed) {
1060                 dimmed = _transfer_mode_enabled (win);
1061                 if (dimmed)
1062                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1063         }
1064
1065         return dimmed;
1066 }
1067
1068 gboolean
1069 modest_ui_dimming_rules_on_paste (ModestWindow *win, gpointer user_data)
1070 {
1071         ModestDimmingRule *rule = NULL;
1072         TnyFolderType types[3];
1073         gboolean dimmed = FALSE;
1074
1075         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1076         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1077         rule = MODEST_DIMMING_RULE (user_data);
1078
1079         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1080         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1081         types[2] = TNY_FOLDER_TYPE_SENT;
1082
1083         /* Check dimmed rule */
1084         if (!dimmed) {
1085                 dimmed = _clipboard_is_empty (win);
1086                 if (dimmed)
1087                         modest_dimming_rule_set_notification (rule,
1088                                                               dgettext("hildon-common-strings",
1089                                                                        "ecoc_ib_edwin_nothing_to_paste"));
1090         }
1091         if (!dimmed) {
1092                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1093                 if (dimmed)
1094                         modest_dimming_rule_set_notification (rule,
1095                                                               dgettext("hildon-common-strings",
1096                                                                        "ckct_ib_unable_to_paste_here"));
1097         }
1098         if (!dimmed) {
1099                 dimmed = !_folder_view_has_focus (win);
1100                 if (dimmed)
1101                         modest_dimming_rule_set_notification (rule,
1102                                         dgettext("hildon-common-strings",
1103                                         "ckct_ib_unable_to_paste_here"));
1104         }
1105         if (!dimmed) {
1106                 dimmed = _selected_folder_not_writeable (MODEST_MAIN_WINDOW(win), TRUE);
1107                 if (dimmed)
1108                         modest_dimming_rule_set_notification (rule,
1109                                                               dgettext("hildon-common-strings",
1110                                                                        "ckct_ib_unable_to_paste_here"));
1111         }
1112         if (!dimmed) {
1113                 dimmed = _selected_folder_is_same_as_source (win);
1114                 if (dimmed)
1115                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_copy_target_error"));
1116         }
1117         if (!dimmed) {
1118                 dimmed = _selected_folder_has_subfolder_with_same_name (win);
1119                 if (dimmed)
1120                         modest_dimming_rule_set_notification (rule, _("mail_in_ui_folder_copy_target_error"));
1121         }
1122
1123         return dimmed;
1124 }
1125
1126
1127 gboolean
1128 modest_ui_dimming_rules_on_select_all (ModestWindow *win, gpointer user_data)
1129 {
1130         ModestDimmingRule *rule = NULL;
1131         gboolean dimmed = FALSE;
1132         GtkWidget *focused = NULL;
1133
1134         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1135         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1136         rule = MODEST_DIMMING_RULE (user_data);
1137
1138         focused = gtk_window_get_focus (GTK_WINDOW (win));
1139
1140         /* Main window dimming rules */
1141         if (!dimmed && MODEST_IS_MAIN_WINDOW (win))
1142                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1143
1144         if (!dimmed && MODEST_IS_MAIN_WINDOW (win))
1145                 dimmed = _header_view_is_all_selected (MODEST_MAIN_WINDOW(win));
1146
1147         if (!dimmed && GTK_IS_ENTRY (focused)) {
1148                 const gchar *current_text;
1149                 current_text = gtk_entry_get_text (GTK_ENTRY (focused));
1150                 dimmed = ((current_text == NULL) || (current_text[0] == '\0'));
1151         }
1152
1153         if (!dimmed && GTK_IS_TEXT_VIEW (focused)) {
1154                 GtkTextBuffer *buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
1155                 dimmed = (gtk_text_buffer_get_char_count (buffer) < 1);
1156         }
1157
1158         if (dimmed && MODEST_IS_ATTACHMENTS_VIEW (focused))
1159                 dimmed = FALSE;
1160         return dimmed;
1161 }
1162
1163 gboolean
1164 modest_ui_dimming_rules_on_view_attachments (ModestWindow *win, gpointer user_data)
1165 {
1166         ModestDimmingRule *rule = NULL;
1167         gboolean dimmed = FALSE;
1168
1169         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1170         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1171         rule = MODEST_DIMMING_RULE (user_data);
1172
1173         /* Check dimmed rule */
1174         if (!dimmed)
1175                 dimmed = _invalid_attach_selected (win, TRUE, TRUE, FALSE, rule);
1176
1177         if (!dimmed) {
1178                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1179                 if (dimmed) {
1180                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1181                 }
1182         }
1183
1184         return dimmed;
1185 }
1186
1187 gboolean
1188 modest_ui_dimming_rules_on_save_attachments (ModestWindow *win, gpointer user_data)
1189 {
1190         ModestDimmingRule *rule = NULL;
1191         gboolean dimmed = FALSE;
1192
1193         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1194         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1195         rule = MODEST_DIMMING_RULE (user_data);
1196
1197         /* Check dimmed rule */
1198         if (!dimmed)
1199                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, FALSE, rule);
1200
1201         if (!dimmed) {
1202                 dimmed = _purged_attach_selected (win, FALSE, NULL);
1203                 if (dimmed) {
1204                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1205                 }
1206         }
1207
1208         return dimmed;
1209 }
1210
1211 gboolean
1212 modest_ui_dimming_rules_on_remove_attachments (ModestWindow *win, gpointer user_data)
1213 {
1214         ModestDimmingRule *rule = NULL;
1215         const DimmedState *state = NULL;
1216         gboolean dimmed = FALSE;
1217
1218         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
1219         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1220         rule = MODEST_DIMMING_RULE (user_data);
1221         state = modest_window_get_dimming_state (win);
1222
1223         /* Check in main window if there's only one message selected */
1224         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1225                 dimmed = _invalid_msg_selected (MODEST_MAIN_WINDOW (win), TRUE, rule);
1226         }
1227
1228         /* Check in view window if there's any attachment selected */
1229         if (!dimmed && MODEST_IS_MSG_VIEW_WINDOW (win)) {
1230                 dimmed = _invalid_attach_selected (win, FALSE, FALSE, TRUE, NULL);
1231                 if (dimmed)
1232                         modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
1233         }
1234
1235         if (!dimmed) {
1236
1237                 dimmed = _selected_msg_sent_in_progress (win);
1238                 if (dimmed) {
1239                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1240                 }
1241         }
1242
1243         /* cannot purge in editable drafts nor pop folders */
1244         if (!dimmed) {
1245                 dimmed = _invalid_folder_for_purge (win, rule);
1246                 if (dimmed)
1247                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1248         }
1249
1250         /* Check if the selected message in main window has attachments */
1251         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1252                 dimmed = !(state->any_has_attachments);
1253                 if (dimmed)
1254                         modest_dimming_rule_set_notification (rule, _("mail_ib_unable_to_purge_attachments"));
1255         }
1256
1257         /* Check if all attachments are already purged */
1258         if (!dimmed) {
1259                 dimmed = _purged_attach_selected (win, TRUE, rule);
1260         }
1261
1262         /* Check if the message is already downloaded */
1263         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1264                 dimmed = !_msg_download_completed (MODEST_MAIN_WINDOW (win));
1265                 if (dimmed)
1266                         modest_dimming_rule_set_notification (rule, _("mail_ib_attach_not_local"));
1267         }
1268
1269
1270         return dimmed;
1271 }
1272
1273 gboolean
1274 modest_ui_dimming_rules_on_undo (ModestWindow *win, gpointer user_data)
1275 {
1276         ModestDimmingRule *rule = NULL;
1277         gboolean dimmed = FALSE;
1278
1279         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1280         rule = MODEST_DIMMING_RULE (user_data);
1281
1282         /* Check dimmed rule */
1283         if (!dimmed && MODEST_IS_MAIN_WINDOW (win)) {
1284                 dimmed = _clipboard_is_empty (win);
1285                 if (dimmed)
1286                         modest_dimming_rule_set_notification (rule, "");
1287         }
1288
1289         if (!dimmed && MODEST_IS_MSG_EDIT_WINDOW (win)) {
1290                 dimmed = !modest_msg_edit_window_can_undo (MODEST_MSG_EDIT_WINDOW (win));
1291         }
1292
1293         return dimmed;
1294 }
1295
1296 gboolean
1297 modest_ui_dimming_rules_on_redo (ModestWindow *win, gpointer user_data)
1298 {
1299         ModestDimmingRule *rule = NULL;
1300         gboolean dimmed = FALSE;
1301
1302         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1303         rule = MODEST_DIMMING_RULE (user_data);
1304
1305         /* Check dimmed rule */
1306         if (!dimmed && MODEST_IS_MSG_EDIT_WINDOW (win)) {
1307                 dimmed = !modest_msg_edit_window_can_redo (MODEST_MSG_EDIT_WINDOW (win));
1308         }
1309
1310         return dimmed;
1311 }
1312
1313 gboolean
1314 modest_ui_dimming_rules_on_cut (ModestWindow *win, gpointer user_data)
1315 {
1316         ModestDimmingRule *rule = NULL;
1317         const DimmedState *state = NULL;
1318         gboolean dimmed = FALSE;
1319
1320         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1321         rule = MODEST_DIMMING_RULE (user_data);
1322         state = modest_window_get_dimming_state (win);
1323
1324         /* Check common dimming rules */
1325         if (!dimmed) {
1326                 dimmed = _invalid_clipboard_selected (win, rule);
1327         }
1328
1329         /* Check window specific dimming rules */
1330         if (MODEST_IS_MAIN_WINDOW (win)) {
1331                 /* Get focused widget */
1332                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1333
1334                 if (MODEST_IS_HEADER_VIEW (focused)) {
1335                         if (!dimmed) {
1336                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1337                                 if (dimmed)
1338                                         modest_dimming_rule_set_notification (rule, "");
1339                         }
1340                         if (!dimmed) {
1341                                 dimmed = _selected_msg_sent_in_progress (win);
1342                                 if (dimmed)
1343                                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1344                         }
1345                         if (!dimmed) {
1346                                 dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
1347                                 if(dimmed)
1348                                         modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_cut_mess"));
1349                         }
1350                 }
1351                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1352                         TnyFolderType types[3];
1353
1354                         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1355                         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1356                         types[2] = TNY_FOLDER_TYPE_SENT;
1357
1358                         /* Apply folder rules */
1359                         if (!dimmed) {
1360                                 dimmed = _selected_folder_not_deletable (MODEST_MAIN_WINDOW(win));
1361                                 if (dimmed)
1362                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1363                         }
1364                         if (!dimmed) {
1365                                 dimmed = _selected_folder_is_root_or_inbox (MODEST_MAIN_WINDOW(win));
1366                                 if (dimmed)
1367                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1368                         }
1369                         if (!dimmed) {
1370                                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1371                                 if (dimmed)
1372                                         modest_dimming_rule_set_notification (rule, _("emev_nc_unabletomove_items"));
1373                         }
1374                 }
1375         }
1376
1377         return dimmed;
1378 }
1379
1380 gboolean
1381 modest_ui_dimming_rules_on_copy (ModestWindow *win, gpointer user_data)
1382 {
1383         ModestDimmingRule *rule = NULL;
1384         const DimmedState *state = NULL;
1385         gboolean dimmed = FALSE;
1386
1387         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1388         rule = MODEST_DIMMING_RULE (user_data);
1389         state = modest_window_get_dimming_state (win);
1390
1391         /* Check common dimming rules */
1392         if (!dimmed) {
1393                 dimmed = _invalid_clipboard_selected (win, rule);
1394         }
1395
1396         /* Check window specific dimming rules */
1397         if (MODEST_IS_MAIN_WINDOW (win)) {
1398                 /* Get focused widget */
1399                 GtkWidget *focused = gtk_window_get_focus (GTK_WINDOW (win));
1400
1401                 if (MODEST_IS_HEADER_VIEW (focused)) {
1402                         if (!dimmed) {
1403                                 dimmed = _selected_folder_is_empty (MODEST_MAIN_WINDOW(win));
1404                                 if (dimmed)
1405                                         modest_dimming_rule_set_notification (rule, "");
1406                         }
1407                         if (!dimmed) {
1408                                 dimmed = _selected_msg_sent_in_progress (win);
1409                                 if (dimmed)
1410                                         modest_dimming_rule_set_notification (rule, _(""));
1411                         }
1412                         if (!dimmed) {
1413                                 dimmed = (state->already_opened_msg > 0) ? TRUE : FALSE;
1414                                 if(dimmed)
1415                                         modest_dimming_rule_set_notification (rule, _(""));
1416                         }
1417                 }
1418                 else if (MODEST_IS_FOLDER_VIEW (focused)) {
1419                         TnyFolderType types[3];
1420
1421                         types[0] = TNY_FOLDER_TYPE_DRAFTS;
1422                         types[1] = TNY_FOLDER_TYPE_OUTBOX;
1423                         types[2] = TNY_FOLDER_TYPE_SENT;
1424
1425                         if (!dimmed) {
1426                                 dimmed = _selected_folder_is_root (MODEST_MAIN_WINDOW(win));
1427                                 if (dimmed)
1428                                         modest_dimming_rule_set_notification (rule, _(""));
1429                         }
1430                         if (!dimmed) {
1431                                 dimmed = _selected_folder_is_any_of_type (win, types, 3);
1432                                 if (dimmed)
1433                                         modest_dimming_rule_set_notification (rule, _(""));
1434                         }
1435                 }
1436         }
1437
1438         return dimmed;
1439 }
1440
1441 gboolean
1442 modest_ui_dimming_rules_on_set_style (ModestWindow *win, gpointer user_data)
1443 {
1444         ModestDimmingRule *rule = NULL;
1445         const DimmedState *state = NULL;
1446         gboolean dimmed = FALSE;
1447
1448         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1449         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1450         rule = MODEST_DIMMING_RULE (user_data);
1451         state = modest_window_get_dimming_state (win);
1452
1453
1454         /* Check common dimming rules */
1455         if (!dimmed) {
1456                 ModestMsgEditFormat format;
1457                 format = modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
1458
1459                 dimmed = (format != MODEST_MSG_EDIT_FORMAT_HTML);
1460                 if (dimmed)
1461                         modest_dimming_rule_set_notification (rule, _("mcen_ib_item_unavailable_plaintext"));
1462         }
1463
1464         if (!dimmed) {
1465                 GtkWidget *body;
1466                 body = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1467                                                                 MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1468
1469                 dimmed = ((body == NULL)||(!gtk_widget_is_focus (body)));
1470                 if (dimmed)
1471                         modest_dimming_rule_set_notification (rule, _("mcen_ib_move_cursor_to_message"));
1472         }
1473
1474
1475         return dimmed;
1476 }
1477
1478 gboolean
1479 modest_ui_dimming_rules_on_zoom (ModestWindow *win, gpointer user_data)
1480 {
1481         ModestDimmingRule *rule = NULL;
1482         const DimmedState *state = NULL;
1483         gboolean dimmed = FALSE;
1484
1485         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1486         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1487         rule = MODEST_DIMMING_RULE (user_data);
1488         state = modest_window_get_dimming_state (win);
1489
1490         if (!dimmed) {
1491                 GtkWidget *body;
1492                 body = modest_msg_edit_window_get_child_widget (MODEST_MSG_EDIT_WINDOW (win),
1493                                                                 MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1494
1495                 dimmed = ((body == NULL)||(!gtk_widget_is_focus (body)));
1496                 if (dimmed)
1497                         modest_dimming_rule_set_notification (rule, _("mcen_ib_move_cursor_to_message"));
1498         }
1499
1500
1501         return dimmed;
1502 }
1503
1504 gboolean
1505 modest_ui_dimming_rules_on_editor_paste (ModestWindow *win, gpointer user_data)
1506 {
1507         ModestDimmingRule *rule = NULL;
1508         const DimmedState *state = NULL;
1509         gboolean dimmed = FALSE;
1510         GtkWidget *focused = NULL;
1511
1512         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1513         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1514         rule = MODEST_DIMMING_RULE (user_data);
1515         state = modest_window_get_dimming_state (win);
1516
1517         focused = gtk_window_get_focus (GTK_WINDOW (win));
1518
1519         if (!dimmed) {
1520                 dimmed = MODEST_IS_ATTACHMENTS_VIEW (focused);
1521         }
1522
1523         if (!dimmed) {
1524                 dimmed = GTK_IS_TOGGLE_BUTTON (focused);
1525         }
1526
1527         if (!dimmed) {
1528                 ModestEmailClipboard *e_clipboard = modest_runtime_get_email_clipboard ();
1529                 const gchar *clipboard_text = modest_msg_edit_window_get_clipboard_text (MODEST_MSG_EDIT_WINDOW (win));
1530
1531                 dimmed = modest_email_clipboard_cleared (e_clipboard) &&
1532                   ((clipboard_text == NULL) || (clipboard_text[0] == '\0'));
1533         }
1534
1535         return dimmed;
1536 }
1537
1538 gboolean
1539 modest_ui_dimming_rules_on_editor_remove_attachment (ModestWindow *win, gpointer user_data)
1540 {
1541         ModestDimmingRule *rule = NULL;
1542         const DimmedState *state = NULL;
1543         gboolean dimmed = FALSE;
1544
1545         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1546         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1547         rule = MODEST_DIMMING_RULE (user_data);
1548         state = modest_window_get_dimming_state (win);
1549
1550         if (!dimmed) {
1551                 TnyList *selected_attachments = NULL;
1552                 gint n_att_selected = 0;
1553                 GtkWidget *attachments_view;
1554                 attachments_view = modest_msg_edit_window_get_child_widget (
1555                         MODEST_MSG_EDIT_WINDOW (win),
1556                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_ATTACHMENTS);
1557
1558                 selected_attachments = modest_attachments_view_get_selection (
1559                         MODEST_ATTACHMENTS_VIEW (attachments_view));
1560                 n_att_selected = tny_list_get_length (selected_attachments);
1561                 g_object_unref (selected_attachments);
1562
1563                 dimmed = (n_att_selected < 1);
1564         }
1565
1566         return dimmed;
1567 }
1568
1569 gboolean
1570 modest_ui_dimming_rules_on_send (ModestWindow *win, gpointer user_data)
1571 {
1572         ModestDimmingRule *rule = NULL;
1573         const DimmedState *state = NULL;
1574         gboolean dimmed = FALSE;
1575
1576         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1577         g_return_val_if_fail (MODEST_IS_MSG_EDIT_WINDOW (win), TRUE);
1578         rule = MODEST_DIMMING_RULE (user_data);
1579         state = modest_window_get_dimming_state (win);
1580
1581         if (!dimmed) {
1582                 GtkWidget *subject_field, *body_field;
1583                 GtkTextBuffer *body_buffer;
1584                 const gchar *subject = NULL;
1585                 body_field = modest_msg_edit_window_get_child_widget (
1586                         MODEST_MSG_EDIT_WINDOW (win),
1587                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BODY);
1588                 subject_field = modest_msg_edit_window_get_child_widget (
1589                         MODEST_MSG_EDIT_WINDOW (win),
1590                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_SUBJECT);
1591                 body_buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (body_field));
1592                 subject = gtk_entry_get_text (GTK_ENTRY (subject_field));
1593
1594                 dimmed = (subject == NULL || subject[0] == '\0');
1595                 if (dimmed)
1596                         modest_dimming_rule_set_notification (rule, _("mcen_ib_subject_not_modified"));
1597         }
1598
1599         if (!dimmed) {
1600                 GtkWidget *to_field, *cc_field, *bcc_field;
1601                 GtkTextBuffer * to_buffer, *cc_buffer, *bcc_buffer;
1602                 cc_field = modest_msg_edit_window_get_child_widget (
1603                         MODEST_MSG_EDIT_WINDOW (win),
1604                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_CC);
1605                 to_field = modest_msg_edit_window_get_child_widget (
1606                         MODEST_MSG_EDIT_WINDOW (win),
1607                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_TO);
1608                 bcc_field = modest_msg_edit_window_get_child_widget (
1609                         MODEST_MSG_EDIT_WINDOW (win),
1610                         MODEST_MSG_EDIT_WINDOW_WIDGET_TYPE_BCC);
1611                 to_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (to_field));
1612                 cc_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (cc_field));
1613                 bcc_buffer = modest_recpt_editor_get_buffer (MODEST_RECPT_EDITOR (bcc_field));
1614
1615                 dimmed = ((gtk_text_buffer_get_char_count (to_buffer) +
1616                            gtk_text_buffer_get_char_count (cc_buffer) +
1617                            gtk_text_buffer_get_char_count (bcc_buffer)) == 0);
1618                 if (dimmed)
1619                         modest_dimming_rule_set_notification (rule, _("mcen_ib_add_recipients_first"));
1620         }
1621
1622         return dimmed;
1623 }
1624
1625 gboolean
1626 modest_ui_dimming_rules_on_view_previous (ModestWindow *win, gpointer user_data)
1627 {
1628         ModestDimmingRule *rule = NULL;
1629         gboolean dimmed = FALSE;
1630
1631         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1632         rule = MODEST_DIMMING_RULE (user_data);
1633
1634         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1635
1636         /* Check dimmed rule */
1637         if (!dimmed) {
1638                 dimmed = _transfer_mode_enabled (win);
1639                 if (dimmed)
1640                         modest_dimming_rule_set_notification (
1641                                         rule, _("mail_ib_notavailable_downloading"));
1642         }
1643         if (!dimmed) {
1644                 dimmed = modest_msg_view_window_first_message_selected (
1645                                 MODEST_MSG_VIEW_WINDOW(win));
1646                 modest_dimming_rule_set_notification (rule, NULL);
1647         }
1648
1649         return dimmed;
1650 }
1651
1652 gboolean
1653 modest_ui_dimming_rules_on_view_next (ModestWindow *win, gpointer user_data)
1654 {
1655         ModestDimmingRule *rule = NULL;
1656         gboolean dimmed = FALSE;
1657
1658         g_return_val_if_fail (MODEST_IS_MSG_VIEW_WINDOW(win), FALSE);
1659         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1660         rule = MODEST_DIMMING_RULE (user_data);
1661
1662         /* Check dimmed rule */
1663         if (!dimmed) {
1664                 dimmed = _transfer_mode_enabled (win);
1665                 if (dimmed)
1666                         modest_dimming_rule_set_notification (rule, _("mail_ib_notavailable_downloading"));
1667         }
1668         if (!dimmed) {
1669                 dimmed = modest_msg_view_window_last_message_selected (MODEST_MSG_VIEW_WINDOW (win));
1670                 modest_dimming_rule_set_notification (rule, NULL);
1671         }
1672
1673         return dimmed;
1674 }
1675
1676
1677 gboolean
1678 modest_ui_dimming_rules_on_tools_smtp_servers (ModestWindow *win, gpointer user_data)
1679 {
1680         const gboolean dimmed =
1681                 !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
1682                         TRUE);
1683
1684         return dimmed;
1685 }
1686
1687 gboolean
1688 modest_ui_dimming_rules_on_cancel_sending (ModestWindow *win, gpointer user_data)
1689 {
1690         ModestDimmingRule *rule = NULL;
1691         TnyFolderType types[1];
1692         const DimmedState *state = NULL;
1693         gboolean dimmed = FALSE;
1694
1695         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1696         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1697         rule = MODEST_DIMMING_RULE (user_data);
1698         state = modest_window_get_dimming_state (win);
1699
1700         types[0] = TNY_FOLDER_TYPE_OUTBOX;
1701
1702         /* Check dimmed rules */
1703         if (!dimmed) {
1704                 dimmed = !_selected_folder_is_any_of_type (win, types, 1);
1705                 if (dimmed)
1706                         modest_dimming_rule_set_notification (rule, "");
1707         }
1708         if (!dimmed) {
1709                 dimmed = !_sending_in_progress (win);
1710                 if (dimmed)
1711                         modest_dimming_rule_set_notification (rule, "");
1712         }
1713
1714         return dimmed;
1715 }
1716
1717 gboolean
1718 modest_ui_dimming_rules_on_csm_cancel_sending (ModestWindow *win, gpointer user_data)
1719 {
1720         ModestDimmingRule *rule = NULL;
1721         TnyFolderType types[1];
1722         const DimmedState *state = NULL;
1723         gboolean dimmed = FALSE;
1724
1725         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1726         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1727         rule = MODEST_DIMMING_RULE (user_data);
1728         state = modest_window_get_dimming_state (win);
1729
1730         types[0] = TNY_FOLDER_TYPE_OUTBOX;
1731
1732         /* Check dimmed rules */
1733         if (!dimmed) {
1734                 dimmed = !_selected_folder_is_any_of_type (win, types, 1);
1735                 if (dimmed)
1736                         modest_dimming_rule_set_notification (rule, "");
1737         }
1738         if (!dimmed) {
1739                 dimmed = !_sending_in_progress (win);
1740                 if (dimmed)
1741                         modest_dimming_rule_set_notification (rule, "");
1742         }
1743
1744         return dimmed;
1745 }
1746
1747 gboolean
1748 modest_ui_dimming_rules_on_send_receive (ModestWindow *win, gpointer user_data)
1749 {
1750         ModestDimmingRule *rule = NULL;
1751         gboolean dimmed = FALSE;
1752
1753         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1754         rule = MODEST_DIMMING_RULE (user_data);
1755
1756         /* Check dimmed rule */
1757         if (!dimmed) {
1758                 dimmed = !modest_account_mgr_has_accounts(modest_runtime_get_account_mgr(),
1759                                                           TRUE);
1760                 if (dimmed)
1761                         modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
1762         }
1763
1764         return dimmed;
1765 }
1766
1767 gboolean
1768 modest_ui_dimming_rules_on_send_receive_all (ModestWindow *win, gpointer user_data)
1769 {
1770         ModestDimmingRule *rule = NULL;
1771         gboolean dimmed = FALSE;
1772
1773         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1774         rule = MODEST_DIMMING_RULE (user_data);
1775
1776         /* Check dimmed rule */
1777         if (!dimmed) {
1778                 GSList *account_names = modest_account_mgr_account_names (modest_runtime_get_account_mgr (), TRUE);
1779                 if (g_slist_length (account_names) <= 1)
1780                         dimmed = TRUE;
1781                 if (dimmed)
1782                         modest_dimming_rule_set_notification (rule, _("mcen_nc_no_email_acnts_defined"));
1783
1784                 modest_account_mgr_free_account_names (account_names);
1785         }
1786
1787         return dimmed;
1788 }
1789
1790 gboolean
1791 modest_ui_dimming_rules_on_add_to_contacts (ModestWindow *win, gpointer user_data)
1792 {
1793         ModestDimmingRule *rule = NULL;
1794         gboolean dimmed = FALSE;
1795         GtkWidget *focused = NULL;
1796
1797         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
1798         rule = MODEST_DIMMING_RULE (user_data);
1799         focused = gtk_window_get_focus (GTK_WINDOW (win));
1800
1801         dimmed = !focused;
1802
1803         if (!dimmed) {
1804                 gchar *selection = NULL;
1805                 if (GTK_IS_TEXT_VIEW (focused)) {
1806                         GtkTextIter start, end;
1807                         GtkTextBuffer *buffer = NULL;
1808                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
1809                         if (gtk_text_buffer_get_selection_bounds (buffer, &start, &end)) {
1810                                 selection = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
1811                         }
1812                 } else if (GTK_IS_LABEL (focused)) {
1813                         selection = modest_text_utils_label_get_selection (GTK_LABEL (focused));
1814                 } else {
1815                         gboolean do_check = TRUE;
1816                         GtkClipboard *clipboard;
1817                         if (GTK_IS_HTML (focused)) {
1818                                 const gchar *sel;
1819                                 int len = -1;
1820                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
1821                                 do_check = !((sel == NULL) || (sel[0] == '\0'));
1822                         }
1823                         if (do_check) {
1824                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
1825                                 selection = gtk_clipboard_wait_for_text (clipboard);
1826                         } else {
1827                                 selection = NULL;
1828                         }
1829                 }
1830                 dimmed = !((selection != NULL) && (modest_text_utils_validate_recipient (selection, NULL)));
1831         }
1832
1833         return dimmed;
1834 }
1835
1836 /* *********************** static utility functions ******************** */
1837
1838
1839 static gboolean
1840 _selected_folder_not_writeable (ModestMainWindow *win,
1841                                 gboolean for_paste)
1842 {
1843         GtkWidget *folder_view = NULL;
1844         TnyFolderStore *parent_folder = NULL;
1845         ModestEmailClipboard *clipboard = NULL;
1846         ModestTnyFolderRules rules;
1847         gboolean is_local_acc = FALSE;
1848         gboolean xfer_folders = FALSE;
1849         gboolean result = FALSE;
1850
1851         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1852
1853         /* Get folder view */
1854         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1855                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1856         /* If no folder view, always dimmed */
1857         if (!folder_view)
1858                 return TRUE;
1859
1860         /* Get selected folder as parent of new folder to create */
1861         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1862         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1863                 /* If it's the local account and its transfering folders, then do not dim */
1864                 if (TNY_IS_ACCOUNT (parent_folder)) {
1865                         is_local_acc = modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder));
1866                         if (for_paste) {
1867                                 clipboard = modest_runtime_get_email_clipboard ();
1868                                 xfer_folders = modest_email_clipboard_folder_copied (clipboard);
1869                         }
1870                 }
1871
1872                 if (for_paste)
1873                         result = !(is_local_acc && xfer_folders);
1874                 else
1875                         result = !is_local_acc;
1876                 goto frees;
1877         }
1878
1879         /* Check dimmed rule */
1880         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1881         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_WRITEABLE;
1882
1883         /* free */
1884  frees:
1885         if (parent_folder != NULL)
1886                 g_object_unref (parent_folder);
1887
1888         return result;
1889 }
1890
1891 static gboolean
1892 _selected_folder_not_deletable (ModestMainWindow *win)
1893 {
1894         GtkWidget *folder_view = NULL;
1895         TnyFolderStore *parent_folder = NULL;
1896         ModestTnyFolderRules rules;
1897         gboolean result = FALSE;
1898
1899         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1900
1901         /* Get folder view */
1902         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1903                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1904         /* If no folder view, always dimmed */
1905         if (!folder_view)
1906                 return TRUE;
1907
1908         /* Get selected folder as parent of new folder to create */
1909         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1910         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1911                 result = TRUE;
1912                 goto frees;
1913         }
1914
1915         /* Check dimmed rule */
1916         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1917         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_DELETABLE;
1918
1919         /* free */
1920  frees:
1921         if (parent_folder != NULL)
1922                 g_object_unref (parent_folder);
1923
1924         return result;
1925 }
1926
1927 static gboolean
1928 _selected_folder_not_moveable (ModestMainWindow *win)
1929 {
1930         GtkWidget *folder_view = NULL;
1931         TnyFolderStore *parent_folder = NULL;
1932         ModestTnyFolderRules rules;
1933         gboolean result = FALSE;
1934
1935         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1936
1937         /* Get folder view */
1938         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1939                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1940         /* If no folder view, always dimmed */
1941         if (!folder_view)
1942                 return TRUE;
1943
1944         /* Get selected folder as parent of new folder to create */
1945         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1946         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1947                 result = TRUE;
1948                 goto frees;
1949         }
1950
1951         /* Check dimmed rule */
1952         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1953         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_MOVEABLE;
1954
1955         /* free */
1956  frees:
1957         if (parent_folder != NULL)
1958                 g_object_unref (parent_folder);
1959
1960         return result;
1961 }
1962
1963 static gboolean
1964 _selected_folder_not_renameable (ModestMainWindow *win)
1965 {
1966         GtkWidget *folder_view = NULL;
1967         TnyFolderStore *parent_folder = NULL;
1968         ModestTnyFolderRules rules;
1969         gboolean result = FALSE;
1970
1971         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
1972
1973         /* Get folder view */
1974         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
1975                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
1976         /* If no folder view, always dimmed */
1977         if (!folder_view)
1978                 return TRUE;
1979
1980         /* Get selected folder as parent of new folder to create */
1981         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
1982         if (!(parent_folder && TNY_IS_FOLDER(parent_folder))) {
1983                 result = TRUE;
1984                 goto frees;
1985         }
1986
1987         /* Check dimmed rule */
1988         rules = modest_tny_folder_get_rules (TNY_FOLDER (parent_folder));
1989         result = rules & MODEST_FOLDER_RULES_FOLDER_NON_RENAMEABLE;
1990
1991         /* free */
1992  frees:
1993         if (parent_folder != NULL)
1994                 g_object_unref (parent_folder);
1995
1996         return result;
1997 }
1998
1999 static gboolean
2000 _selected_folder_is_root_or_inbox (ModestMainWindow *win)
2001 {
2002         TnyFolderType types[2];
2003         gboolean result = FALSE;
2004
2005         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2006
2007         types[0] = TNY_FOLDER_TYPE_ROOT;
2008         types[1] = TNY_FOLDER_TYPE_INBOX;
2009
2010         /* Check folder type */
2011         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 2);
2012
2013         /* Check pop and MMC accounts */
2014         if (!result) {
2015                 result = _selected_folder_is_MMC_or_POP_root (win);
2016         }
2017
2018         return result;
2019 }
2020
2021
2022 static gboolean
2023 _selected_folder_is_root (ModestMainWindow *win)
2024 {
2025         TnyFolderType types[1];
2026         gboolean result = FALSE;
2027
2028         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2029
2030         /* All accounts are root items: */
2031         GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2032                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2033         if (folder_view) {
2034                 gboolean is_account = FALSE;
2035                 TnyFolderStore *folder_store =
2036                         modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2037                 if (folder_store) {
2038                         is_account = TNY_IS_ACCOUNT (folder_store);
2039                         g_object_unref (folder_store);
2040                         folder_store = NULL;
2041                 }
2042
2043                 if (is_account)
2044                         return TRUE;
2045         }
2046
2047         /* Try something more precise: */
2048         types[0] = TNY_FOLDER_TYPE_ROOT;
2049
2050         /* Check folder type */
2051         result = _selected_folder_is_any_of_type (MODEST_WINDOW(win), types, 1);
2052
2053         /* Check pop and MMC accounts */
2054         if (!result) {
2055                 result = _selected_folder_is_MMC_or_POP_root (win);
2056         }
2057
2058         return result;
2059 }
2060
2061 static gboolean
2062 _selected_folder_is_MMC_or_POP_root (ModestMainWindow *win)
2063 {
2064         GtkWidget *folder_view = NULL;
2065         TnyFolderStore *parent_folder = NULL;
2066         gboolean result = FALSE;
2067
2068         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2069                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2070         if (!folder_view)
2071                 return FALSE;
2072
2073         /* Get selected folder as parent of new folder to create */
2074         parent_folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2075         if (!parent_folder)
2076                 return TRUE;
2077
2078         if (TNY_IS_ACCOUNT (parent_folder)) {
2079                 /* If it's the local account then do not dim */
2080                 if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (parent_folder))) {
2081                         result = FALSE;
2082                 } else {
2083                                 /* If it's the MMC root folder then dim it */
2084                         if (!strcmp (tny_account_get_id (TNY_ACCOUNT (parent_folder)), MODEST_MMC_ACCOUNT_ID)) {
2085                                         result = TRUE;
2086                         } else {
2087                                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (parent_folder));
2088                                 /* If it's POP then dim */
2089                                 result = (modest_protocol_info_get_transport_store_protocol (proto_str) ==
2090                                                   MODEST_PROTOCOL_STORE_POP) ? TRUE : FALSE;
2091                         }
2092                 }
2093         }
2094         g_object_unref (parent_folder);
2095
2096         return result;
2097 }
2098
2099 static gboolean
2100 _header_view_is_all_selected (ModestMainWindow *win)
2101 {
2102         const DimmedState *state = NULL;
2103
2104         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2105
2106         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2107
2108         return state->all_selected;
2109 }
2110
2111 static gboolean
2112 _selected_folder_is_empty (ModestMainWindow *win)
2113 {
2114         GtkWidget *folder_view = NULL;
2115         TnyFolderStore *folder = NULL;
2116         gboolean result = FALSE;
2117
2118         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2119
2120         /* Get folder view */
2121         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2122                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2123         /* If no folder view, always dimmed */
2124         if (!folder_view)
2125                 return TRUE;
2126
2127         /* Get selected folder as parent of new folder to create */
2128         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2129         if (!(folder && TNY_IS_FOLDER(folder))) {
2130                 if (folder)
2131                         g_object_unref (folder);
2132                 return TRUE;
2133         }
2134
2135         /* Check folder type */
2136         result = tny_folder_get_all_count (TNY_FOLDER (folder)) == 0;
2137
2138         /* free */
2139         g_object_unref (folder);
2140
2141         return result;
2142 }
2143
2144 static gboolean
2145 _folder_view_has_focus (ModestWindow *win)
2146 {
2147         GtkWidget *folder_view = NULL;
2148
2149         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2150
2151         /* Get folder view */
2152         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2153                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2154         if (!folder_view)
2155                 return FALSE;
2156
2157         if (gtk_widget_is_focus(folder_view))
2158                 return TRUE;
2159
2160         return FALSE;
2161 }
2162
2163 static gboolean
2164 _selected_folder_is_same_as_source (ModestWindow *win)
2165 {
2166         ModestEmailClipboard *clipboard = NULL;
2167         GtkWidget *folder_view = NULL;
2168         TnyFolderStore *folder = NULL;
2169         gboolean result = FALSE;
2170
2171         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2172
2173         /* Get folder view */
2174         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2175                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2176         if (!folder_view)
2177                 return FALSE;
2178
2179         /* Get selected folder as destination folder */
2180         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2181         if (!(folder && TNY_IS_FOLDER(folder))) {
2182                 result = FALSE;
2183                 goto frees;
2184         }
2185
2186         /* Check clipboard is cleared */
2187         clipboard = modest_runtime_get_email_clipboard ();
2188         if (modest_email_clipboard_cleared (clipboard)) {
2189                 result = FALSE;
2190                 goto frees;
2191         }
2192
2193         /* Check source folder */
2194         result = modest_email_clipboard_check_source_folder (clipboard, TNY_FOLDER (folder));
2195
2196         /* Free */
2197  frees:
2198         g_object_unref (folder);
2199
2200         return result;
2201 }
2202
2203 static gboolean
2204 _selected_folder_is_any_of_type (ModestWindow *win,
2205                                  TnyFolderType types[],
2206                                  guint ntypes)
2207 {
2208         GtkWidget *folder_view = NULL;
2209         TnyFolderStore *folder = NULL;
2210         TnyFolderType folder_type;
2211         guint i=0;
2212         gboolean result = FALSE;
2213
2214         /*Get current folder */
2215         if (MODEST_IS_MAIN_WINDOW(win)) {
2216
2217                 /* Get folder view */
2218                 folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2219                                                                    MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2220                 /* If no folder view, always dimmed */
2221                 if (!folder_view)
2222                         return FALSE;
2223
2224                 /* Get selected folder as parent of new folder to create */
2225                 folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2226
2227                 if (!(folder && TNY_IS_FOLDER(folder))) {
2228                         if (folder)
2229                                 g_object_unref (folder);
2230                         return FALSE;
2231                 }
2232
2233                 /* Check folder type */
2234                 result = _folder_is_any_of_type (TNY_FOLDER(folder), types, ntypes);
2235         }
2236         else if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2237                 folder_type = modest_msg_view_window_get_folder_type (MODEST_MSG_VIEW_WINDOW (win));
2238                 for (i=0; i < ntypes; i++) {
2239                         result = result || folder_type == types[i];
2240                 }
2241         }
2242
2243
2244         /* free */
2245         if (folder)
2246                 g_object_unref (folder);
2247
2248         return result;
2249 }
2250
2251 static gboolean
2252 _folder_is_any_of_type (TnyFolder *folder,
2253                         TnyFolderType types[],
2254                         guint ntypes)
2255 {
2256         TnyFolderType folder_type;
2257         gboolean result = FALSE;
2258         guint i;
2259
2260         g_return_val_if_fail (TNY_IS_FOLDER(folder), FALSE);
2261
2262         /* Get folder type */
2263         folder_type = modest_tny_folder_guess_folder_type (folder);
2264         if (folder_type == TNY_FOLDER_TYPE_INVALID)
2265                 g_warning ("%s: BUG: TNY_FOLDER_TYPE_INVALID", __FUNCTION__);
2266
2267         /* Check foler type */
2268         for (i=0; i < ntypes; i++) {
2269                 result = result || folder_type == types[i];
2270         }
2271
2272         return result;
2273 }
2274
2275 static gboolean
2276 _clipboard_is_empty (ModestWindow *win)
2277 {
2278         gboolean result = FALSE;
2279
2280         if (MODEST_IS_MAIN_WINDOW (win)) {
2281                 ModestEmailClipboard *clipboard = NULL;
2282                 clipboard = modest_runtime_get_email_clipboard ();
2283                 if (modest_email_clipboard_cleared (clipboard))
2284                  result = TRUE;
2285         }
2286
2287         return result;
2288 }
2289
2290 static gboolean
2291 _invalid_clipboard_selected (ModestWindow *win,
2292                              ModestDimmingRule *rule)
2293 {
2294         const DimmedState *state = NULL;
2295         gboolean result = FALSE;
2296         GtkWidget *focused = NULL;
2297
2298         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2299         state = modest_window_get_dimming_state (win);
2300         /* Get focuesed widget */
2301         focused = gtk_window_get_focus (GTK_WINDOW (win));
2302
2303         if (MODEST_IS_MSG_EDIT_WINDOW (win)) {
2304                 gboolean has_selection = FALSE;
2305                 if (GTK_IS_TEXT_VIEW (focused)) {
2306                         GtkTextBuffer *buffer = NULL;
2307                         buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2308                         has_selection = modest_text_utils_buffer_selection_is_valid (buffer);
2309                 } else if (GTK_IS_EDITABLE (focused)) {
2310                         has_selection = gtk_editable_get_selection_bounds (GTK_EDITABLE (focused), NULL, NULL);
2311                 }
2312                 result = !has_selection;
2313         } else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2314                 if (focused) {
2315                         MODEST_DEBUG_BLOCK (g_message ("FOCUSED %s", g_type_name (G_TYPE_FROM_INSTANCE (focused))););
2316                         if (GTK_IS_LABEL (focused) &&
2317                             !gtk_label_get_selection_bounds (GTK_LABEL (focused), NULL, NULL)) {
2318                                 result = TRUE;
2319                         } else if (GTK_IS_TEXT_VIEW (focused)) {
2320                                 GtkTextBuffer *buffer;
2321                                 buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (focused));
2322                                 result = !gtk_text_buffer_get_has_selection (buffer);
2323                         } else if (GTK_IS_HTML (focused)) {
2324                                 const gchar *sel;
2325                                 int len = -1;
2326                                 sel = gtk_html_get_selection_html (GTK_HTML (focused), &len);
2327                                 result = ((sel == NULL) || (sel[0] == '\0'));
2328                         } else if (MODEST_IS_ATTACHMENTS_VIEW (focused)) {
2329                                 result = TRUE;
2330                         } else {
2331                                 GtkClipboard *clipboard;
2332                                 gchar *selection;
2333
2334                                 clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
2335                                 /* Get clipboard selection*/
2336                                 selection = gtk_clipboard_wait_for_text (clipboard);
2337                                 /* Check dimming */
2338                                 result = (selection == NULL);
2339                                 g_free (selection);
2340                         }
2341                 } else {
2342                         result = TRUE;
2343                 }
2344
2345                 if (result)
2346                         modest_dimming_rule_set_notification (rule, "");
2347
2348         }
2349         else if (MODEST_IS_MAIN_WINDOW (win)) {
2350                 /* Check dimming */
2351                 result = state->n_selected == 0;
2352                 if (result)
2353                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2354         }
2355
2356         return result;
2357 }
2358
2359
2360 static gboolean
2361 _invalid_attach_selected (ModestWindow *win,
2362                           gboolean unique,
2363                           gboolean for_view,
2364                           gboolean for_remove,
2365                           ModestDimmingRule *rule)
2366 {
2367         TnyList *attachments;
2368         gint n_selected;
2369         TnyHeaderFlags flags;
2370         gboolean nested_attachments = FALSE;
2371         gboolean selected_messages = FALSE;
2372         const DimmedState *state = NULL;
2373         gboolean result = FALSE;
2374
2375         g_return_val_if_fail (MODEST_IS_WINDOW(win), FALSE);
2376         state = modest_window_get_dimming_state (win);
2377
2378         if (MODEST_IS_MAIN_WINDOW (win)) {
2379                 flags = TNY_HEADER_FLAG_ATTACHMENTS;
2380                 if (!result)
2381                         result = !state->any_has_attachments;
2382         }
2383         else if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2384
2385                 /* Get selected atachments */
2386                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2387                 n_selected = tny_list_get_length (attachments);
2388
2389                 /* Check unique */
2390                 if (!result) {
2391                         if (unique)
2392                                 result = n_selected != 1;
2393                         else
2394
2395                                 result = n_selected < 1;
2396                 }
2397
2398                 /* Check attached type (view operation not required) */
2399                 if (!result && !for_view)  {
2400                         TnyIterator *iter;
2401                         iter = tny_list_create_iterator (attachments);
2402                         while (!tny_iterator_is_done (iter) && !result) {
2403                                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2404                                 TnyList *nested_list = tny_simple_list_new ();
2405                                 if (!for_remove && modest_tny_mime_part_is_msg (mime_part)) {
2406                                         selected_messages = TRUE;
2407                                         result = TRUE;
2408                                 }
2409                                 tny_mime_part_get_parts (mime_part, nested_list);
2410                                 if (!for_remove && tny_list_get_length (nested_list) > 0) {
2411                                         nested_attachments = TRUE;
2412                                         result = TRUE;
2413                                 }
2414                                 g_object_unref (nested_list);
2415                                 g_object_unref (mime_part);
2416                                 tny_iterator_next (iter);
2417                         }
2418                         g_object_unref (iter);
2419                 }
2420
2421                 /* Set notifications */
2422                 if (result && rule != NULL) {
2423                         if (selected_messages) {
2424                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_save_attach_mail"));
2425                         } else if (nested_attachments) {
2426                                 modest_dimming_rule_set_notification (rule, _("FIXME:unable to save attachments with nested elements"));
2427                         } else if (n_selected == 0) {
2428                                 modest_dimming_rule_set_notification (rule, _("FIXME:no attachment selected"));
2429                         } else if (unique) {
2430                                 modest_dimming_rule_set_notification (rule, _("mcen_ib_unable_to_display_more"));
2431                         }
2432                 }
2433
2434                 /* Free */
2435                 g_object_unref (attachments);
2436         }
2437
2438         return result;
2439 }
2440
2441 static gboolean
2442 _purged_attach_selected (ModestWindow *win, gboolean all, ModestDimmingRule *rule)
2443 {
2444         TnyList *attachments = NULL;
2445         TnyIterator *iter;
2446         gint purged = 0;
2447         gint n_attachments = 0;
2448         gboolean result = FALSE;
2449
2450         /* This should check if _all_ the attachments are already purged. If only some
2451          * of them are purged, then it does not cause dim as there's a confirmation dialog
2452          * for removing only local attachments */
2453
2454         /* Get selected atachments */
2455         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2456                 attachments = modest_msg_view_window_get_attachments (MODEST_MSG_VIEW_WINDOW(win));
2457         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2458                 /* If we're in main window, we won't know if there are already purged attachments */
2459                 return FALSE;
2460         }
2461
2462         if (attachments == NULL)
2463                 return FALSE;
2464
2465         if (tny_list_get_length (attachments)) {
2466                 g_object_unref (attachments);
2467                 return FALSE;
2468         }
2469
2470         iter = tny_list_create_iterator (attachments);
2471         while (!tny_iterator_is_done (iter)) {
2472                 TnyMimePart *mime_part = TNY_MIME_PART (tny_iterator_get_current (iter));
2473                 if (tny_mime_part_is_purged (mime_part)) {
2474                         purged++;
2475                 }
2476                 n_attachments++;
2477                 g_object_unref (mime_part);
2478                 tny_iterator_next (iter);
2479         }
2480         g_object_unref (iter);
2481
2482         /* Free */
2483         g_object_unref (attachments);
2484
2485         if (all)
2486                 result = (purged == n_attachments);
2487         else
2488                 result = (purged > 0);
2489
2490         /* This string no longer exists, refer to NB#75415 for more info
2491         if (result && (rule != NULL))
2492                 modest_dimming_rule_set_notification (rule, _("mail_ib_attachment_already_purged"));
2493         */
2494
2495         return result;
2496 }
2497
2498 static gboolean
2499 _invalid_msg_selected (ModestMainWindow *win,
2500                        gboolean unique,
2501                        ModestDimmingRule *rule)
2502 {
2503         GtkWidget *folder_view = NULL;
2504         const DimmedState *state = NULL;
2505         gboolean result = FALSE;
2506
2507         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), FALSE);
2508         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (rule), FALSE);
2509         state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2510
2511         /* Get folder view to check focus */
2512         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2513                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2514
2515         /* Check dimmed rule (TODO: check focus on widgets */
2516         if (!result) {
2517                 result = ((state->n_selected == 0 ) ||
2518                           (gtk_widget_is_focus (folder_view)));
2519                 if (result)
2520                         modest_dimming_rule_set_notification (rule, _("mcen_ib_no_message_selected"));
2521         }
2522         if (!result && unique) {
2523                 result = state->n_selected > 1;
2524                 if (result)
2525                         modest_dimming_rule_set_notification (rule, _("mcen_ib_select_one_message"));
2526         }
2527
2528         return result;
2529 }
2530
2531
2532 static gboolean
2533 _msg_download_in_progress (ModestWindow *win)
2534 {
2535         gboolean result = FALSE;
2536
2537         g_return_val_if_fail (MODEST_IS_WINDOW (win), FALSE);
2538
2539         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2540                 result = modest_msg_view_window_toolbar_on_transfer_mode (MODEST_MSG_VIEW_WINDOW(win));
2541         }
2542         else if (MODEST_IS_MAIN_WINDOW (win)) {
2543                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW(win));
2544         }
2545
2546         return result;
2547 }
2548
2549 static gboolean
2550 _msg_download_completed (ModestMainWindow *win)
2551 {
2552         const DimmedState *state = modest_window_get_dimming_state (MODEST_WINDOW(win));
2553         return state->any_marked_as_cached;
2554 }
2555
2556 static void
2557 fill_list_of_caches (gpointer key, gpointer value, gpointer userdata)
2558 {
2559         GSList **send_queues = (GSList **) userdata;
2560         *send_queues = g_slist_prepend (*send_queues, value);
2561 }
2562
2563 static gboolean
2564 _selected_msg_sent_in_progress (ModestWindow *win)
2565 {
2566         const DimmedState *state = modest_window_get_dimming_state (win);
2567         return state->sent_in_progress;
2568 }
2569
2570
2571 static gboolean
2572 _sending_in_progress (ModestWindow *win)
2573 {
2574         GHashTable *send_queue_cache = NULL;
2575         ModestCacheMgr *cache_mgr = NULL;
2576         ModestTnySendQueue *send_queue = NULL;
2577         GSList *send_queues = NULL, *node = NULL;
2578         gboolean result = FALSE;
2579
2580         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW (win), FALSE);
2581
2582         /* Get send queue */
2583         cache_mgr = modest_runtime_get_cache_mgr ();
2584         send_queue_cache = modest_cache_mgr_get_cache (cache_mgr,
2585                                                        MODEST_CACHE_MGR_CACHE_TYPE_SEND_QUEUE);
2586
2587         g_hash_table_foreach (send_queue_cache, (GHFunc) fill_list_of_caches, &send_queues);
2588
2589         for (node = send_queues; node != NULL && !result; node = g_slist_next (node)) {
2590                 send_queue = MODEST_TNY_SEND_QUEUE (node->data);
2591
2592                 /* Check if send operation is in progress */
2593                 result = modest_tny_send_queue_sending_in_progress (send_queue);
2594         }
2595
2596         return result;
2597 }
2598
2599 static gboolean
2600 _invalid_folder_for_purge (ModestWindow *win,
2601                            ModestDimmingRule *rule)
2602 {
2603         TnyFolder *folder = NULL;
2604         TnyAccount *account = NULL;
2605         gboolean result = FALSE;
2606
2607         if (MODEST_IS_MSG_VIEW_WINDOW (win)) {
2608
2609                 /* Get folder and account of message */
2610                 TnyMsg *msg = modest_msg_view_window_get_message (MODEST_MSG_VIEW_WINDOW (win));
2611                 g_return_val_if_fail(msg != NULL, TRUE);
2612                 folder = tny_msg_get_folder (msg);
2613                 g_object_unref (msg);
2614                 if (folder == NULL) {
2615                         result = TRUE;
2616                         goto frees;
2617                 }
2618         } else if (MODEST_IS_MAIN_WINDOW (win)) {
2619                 GtkWidget *folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW (win),
2620                                                                               MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2621                 if (!folder_view)
2622                         return FALSE;
2623                 folder = TNY_FOLDER (modest_folder_view_get_selected (MODEST_FOLDER_VIEW (folder_view)));
2624                 if (folder == NULL || ! TNY_IS_FOLDER (folder))
2625                         goto frees;
2626         } else {
2627                 g_return_val_if_reached (FALSE);
2628         }
2629         account = modest_tny_folder_get_account (folder);
2630         if (account == NULL) goto frees;
2631
2632         /* Check account */
2633         if (modest_tny_account_is_virtual_local_folders (TNY_ACCOUNT (account))) {
2634                 TnyFolderType types[2];
2635                 types[0] = TNY_FOLDER_TYPE_DRAFTS;
2636                 types[1] = TNY_FOLDER_TYPE_OUTBOX;
2637
2638                 if (_selected_folder_is_any_of_type (win, types, 2)) {
2639                         result = TRUE;
2640                 }
2641         } else {
2642                 const gchar *proto_str = tny_account_get_proto (TNY_ACCOUNT (account));
2643                 ModestTransportStoreProtocol proto;
2644                 proto = modest_protocol_info_get_transport_store_protocol (proto_str);
2645                 /* If it's a remote folder then dim */
2646                 if (proto == MODEST_PROTOCOL_STORE_POP || proto == MODEST_PROTOCOL_STORE_IMAP) {
2647                         result = TRUE;
2648                 }
2649         }
2650
2651 frees:
2652         if (folder != NULL)
2653                 g_object_unref (folder);
2654         if (account != NULL)
2655                 g_object_unref (account);
2656
2657         return result;
2658 }
2659
2660 static gboolean
2661 _transfer_mode_enabled (ModestWindow *win)
2662 {
2663         gboolean result = FALSE;
2664
2665         /* Check dimming */
2666         if (MODEST_IS_MSG_VIEW_WINDOW(win)) {
2667                 result = modest_msg_view_window_transfer_mode_enabled (MODEST_MSG_VIEW_WINDOW (win));
2668         } else if (MODEST_IS_MAIN_WINDOW(win)) {
2669                 result = modest_main_window_transfer_mode_enabled (MODEST_MAIN_WINDOW (win));
2670         } else {
2671                 g_warning("_transfer_mode_enabled called with wrong window type");
2672         }
2673
2674         return result;
2675 }
2676
2677 static gboolean
2678 _selected_folder_has_subfolder_with_same_name (ModestWindow *win)
2679 {
2680         GtkWidget *folder_view = NULL;
2681         TnyFolderStore *folder = NULL;
2682         ModestEmailClipboard *clipboard = NULL;
2683         const gchar *folder_name = NULL;
2684         gboolean result = FALSE;
2685
2686         g_return_val_if_fail (MODEST_IS_MAIN_WINDOW(win), TRUE);
2687
2688         /*Get current parent folder */
2689         folder_view = modest_main_window_get_child_widget (MODEST_MAIN_WINDOW(win),
2690                                                            MODEST_MAIN_WINDOW_WIDGET_TYPE_FOLDER_VIEW);
2691         /* If no folder view, always dimmed */
2692         if (!folder_view) return FALSE;
2693
2694         /* Get selected folder as parent of new folder to create */
2695         folder = modest_folder_view_get_selected (MODEST_FOLDER_VIEW(folder_view));
2696         if (!(folder && TNY_IS_FOLDER(folder))) goto frees;
2697
2698         /* get modest clipboard and source folder */
2699         clipboard = modest_runtime_get_email_clipboard ();
2700         folder_name = modest_email_clipboard_get_folder_name (clipboard);
2701         if (folder_name == NULL) goto frees;
2702
2703         /* Check source subfolders names */
2704         result = modest_tny_folder_has_subfolder_with_name (folder, folder_name,
2705                                                             TRUE);
2706
2707         /* Free */
2708  frees:
2709         if (folder != NULL)
2710                 g_object_unref (folder);
2711
2712
2713         return result;
2714 }
2715
2716 gboolean
2717 modest_ui_dimming_rules_on_save_to_drafts (ModestWindow *win,
2718                                            gpointer user_data)
2719 {
2720         ModestDimmingRule *rule = NULL;
2721         gboolean dimmed = FALSE;
2722
2723         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
2724         g_return_val_if_fail (MODEST_IS_DIMMING_RULE (user_data), FALSE);
2725         rule = MODEST_DIMMING_RULE (user_data);
2726
2727         /* Check dimmed rule */
2728         if (!dimmed) {
2729                 dimmed = !modest_msg_edit_window_is_modified (MODEST_MSG_EDIT_WINDOW (win));
2730         }
2731
2732         return dimmed;
2733 }
2734
2735 gboolean
2736 modest_ui_dimming_rules_on_insert_image (ModestWindow *win,
2737                                          gpointer user_data)
2738 {
2739         g_return_val_if_fail (MODEST_MSG_EDIT_WINDOW (win), FALSE);
2740
2741         ModestMsgEditFormat format =
2742           modest_msg_edit_window_get_format (MODEST_MSG_EDIT_WINDOW (win));
2743
2744         return (format != MODEST_MSG_EDIT_FORMAT_HTML);
2745 }